{"id":24766,"date":"2025-01-10T16:31:55","date_gmt":"2025-01-10T21:31:55","guid":{"rendered":"https:\/\/hepatochem.com\/2024-photochemistry-year-in-review\/"},"modified":"2025-01-10T16:31:55","modified_gmt":"2025-01-10T21:31:55","slug":"2024-photochemistry-year-in-review","status":"publish","type":"post","link":"https:\/\/hepatochem.com\/fr\/2024-photochemistry-year-in-review\/","title":{"rendered":"2024 Photochemistry Year in Review"},"content":{"rendered":"<p>[et_pb_section fb_built=\u00a0\u00bb1&Prime; admin_label=\u00a0\u00bbsection\u00a0\u00bb _builder_version=\u00a0\u00bb4.16&Prime; global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_row admin_label=\u00a0\u00bbrow\u00a0\u00bb _builder_version=\u00a0\u00bb4.20.4&Prime; background_size=\u00a0\u00bbinitial\u00a0\u00bb background_position=\u00a0\u00bbtop_left\u00a0\u00bb background_repeat=\u00a0\u00bbrepeat\u00a0\u00bb width=\u00a0\u00bb100%\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb4_4&Prime; _builder_version=\u00a0\u00bb4.16&Prime; custom_padding=\u00a0\u00bb|||\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb custom_padding__hover=\u00a0\u00bb|||\u00a0\u00bb][et_pb_text _builder_version=\u00a0\u00bb4.27.2&Prime; _module_preset=\u00a0\u00bbdefault\u00a0\u00bb header_4_line_height=\u00a0\u00bb1.5em\u00a0\u00bb custom_margin=\u00a0\u00bb||0px||false|false\u00a0\u00bb custom_padding=\u00a0\u00bb||0px||false|false\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n<h1>24 Papers from 2024<\/h1>\n<p>Happy New Year to everyone from HepatoChem&#x2122;. Every year around this time we like to look back at the past year in photochemistry. Once again, 2024 was a big year for photochemistry and it\u2019s looking like things aren\u2019t slowing down anytime soon. Often, it seems like just about everyone out there is trying to find some new use for LEDs. In 2024 alone, our PhotoRedox&#x2122; products were cited more than 100 times, bringing the total to date to over 350+ examples. We\u2019re always grateful to our users and will continue to highlight as much of this work as possible in our <a href=\"https:\/\/hepatochem.com\/fr\/blog\/\" target=\"_blank\" rel=\"noopener\">blog<\/a> and newsletters. This year, a few of our favorite blog posts are a <a href=\"https:\/\/hepatochem.com\/serendipitous-impurities-in-photocatalysis\/\" target=\"_blank\" rel=\"noopener\">\u201cmetal-free\u201d metal catalyzed reaction<\/a>, <a href=\"https:\/\/hepatochem.com\/photocatalytic-radiolabeling-with-18f-in-flow\/\" target=\"_blank\" rel=\"noopener\">photocatalytic radiolabeling<\/a> and <a href=\"https:\/\/hepatochem.com\/pulsed-light-photochemistry-yes-no-or-maybe\/\" target=\"_blank\" rel=\"noopener\">pulsed-LED photochemistry<\/a>. In 2025, expect a big year for our new photoreactor and LEDs for UV chemistry expanding below 365 nm. And as always, we will continue to ship our PhotoRedox Boxes&#x2122;, LEDs and Lucent360&#x2122; photoreactor around the world.<\/p>\n<p>Looking back on the past year (we like to wait until the end of the year for our year-end summary) we want to recognize some of our favorite papers from the past year in photochemistry. We started this little exercise back in 2020 and our previous lists can be found here:<\/p>\n<h4><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" href=\"https:\/\/hepatochem.com\/the-20-must-read-photochemistry-papers-from-2020\/\" target=\"_blank\" rel=\"noopener\"><strong>20 papers from 2020<\/strong><\/a><\/span><\/h4>\n<h4><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" href=\"https:\/\/hepatochem.com\/the-21-must-read-photochemistry-papers-of-2021\/\" target=\"_blank\" rel=\"noopener\"><strong>21 papers from 2021<\/strong><\/a><\/span><\/h4>\n<h4><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" href=\"https:\/\/hepatochem.com\/photochemistry-2022\/\" target=\"_blank\" rel=\"noopener\"><strong>22 papers from 2022<\/strong><\/a><\/span><\/h4>\n<h4><span style=\"color: #00ccff;\"><a style=\"color: #00ccff;\" href=\"https:\/\/hepatochem.com\/2023-photochemistry\/\" target=\"_blank\" rel=\"noopener\"><strong>23 papers from 2023<\/strong><\/a><\/span><\/h4>\n<p>We discussed our criteria previously <a href=\"https:\/\/hepatochem.com\/the-20-must-read-photochemistry-papers-from-2020\/\" target=\"_blank\" rel=\"noopener\">here<\/a>, but this is not an attempt to rank the best 24 papers of the year. What papers are included? Just our favorite, or funniest, or most unexpected or thought-provoking papers that we read last year. A few cite a PhotoRedox Box&#x2122;, TC&#x2122; or Lucent360&#x2122; products, while others are just our favorite things that we read last year. As always, our lists skews towards papers using photocatalysis for synthesis and if your paper is open access, well that\u2019s a bonus. If your favorite paper isn\u2019t listed then perhaps, we haven\u2019t read it yet, or didn\u2019t like it or simply ran out of space in the list. But we\u2019d like to hear from you so send any comments to <a href=\"mailto:info@hepatochem.com\" target=\"_blank\" rel=\"noopener\">info@hepatochem.com<\/a> or our new Bluesky account at <a href=\"https:\/\/bsky.app\/profile\/evoluchem.bsky.social\" target=\"_blank\" rel=\"noopener\">@evoluchem.bsky.social<\/a>.<\/p>\n<p><strong>Now on to the list:<\/strong><\/p>\n<h3>Paper 1:<br \/>Recycling of Post-Consumer Waste Polystyrene Using Commercial Plastic Additives<\/h3>\n<p><strong>(Open Access)<br \/>Authors<\/strong>: Sewon Oh, Hanning Jiang, Liat H. Kugelmass, and Erin E. Stache*<br \/><strong>Ref<\/strong>: ACS Cent. Sci. 2024, ASAP<br \/><strong>Link<\/strong>: <a href=\"https:\/\/pubs.acs.org\/doi\/10.1021\/acscentsci.4c01317\" target=\"_blank\" rel=\"noopener\">https:\/\/pubs.acs.org\/doi\/10.1021\/acscentsci.4c01317<\/a><br \/><strong>Comment<\/strong>: Our favorite paper of 2024. What if you could use black plastics which are notoriously difficult to recycle as the catalyst to decompose other plastics? Have you ever wanted to compare the catalytic activities of a flowerpot vs a sushi box? Do you like good videos? Well then this is the paper for you.<br \/><a href=\"https:\/\/pubs.acs.org\/doi\/10.1021\/acscentsci.4c01317\" target=\"_blank\" rel=\"noopener\"><strong>Post<\/strong>:<\/a><\/p>\n<p><a href=\"https:\/\/pubs.acs.org\/doi\/10.1021\/acscentsci.4c01317\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-21869 size-large\" src=\"https:\/\/hepatochem.com\/wp-content\/uploads\/2025\/01\/Paper-1-1024x894.jpg\" alt=\"2024 Photochemistry\" width=\"1024\" height=\"894\" srcset=\"https:\/\/hepatochem.com\/wp-content\/uploads\/2025\/01\/Paper-1-980x856.jpg 980w, https:\/\/hepatochem.com\/wp-content\/uploads\/2025\/01\/Paper-1-480x419.jpg 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) 1024px, 100vw\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<h3>Paper 2:<br \/>Radical Polarity<\/h3>\n<p><strong>Authors<\/strong>: Jacob J. A. Garwood, Andrew D. Chen, and David A. Nagib*<br \/><strong>Ref<\/strong>: J. Am. Chem. Soc. 2024, 146, 28034\u221228059<br \/><strong>Link<\/strong>: <a href=\"https:\/\/pubs.acs.org\/doi\/10.1021\/jacs.4c06774\" target=\"_blank\" rel=\"noopener\">https:\/\/pubs.acs.org\/doi\/10.1021\/jacs.4c06774<\/a><br \/><strong>Comment<\/strong>: A phenomenal resource. Simply the calculated and experimentally verified polarity of every photochemically generated radical that you could ever want or need<\/p>\n<p>&nbsp;<\/p>\n<h3>Paper 3:<br \/>Investigating the Effects of Pulsed LED Irradiation in Photoredox Catalysis: A Pilot Study<\/h3>\n<p><strong>Authors<\/strong>: Liam K. Burt, Johnathon C. Robertson, Michael C. Breadmore, Timothy U. Connell,* and Alex C. Bissember*<br \/><strong>Ref<\/strong>: Organometallics 2024, 43 (24), 3226\u20133235<br \/><strong>Link<\/strong>: <a href=\"https:\/\/doi.org\/10.1021\/acs.organomet.4c00232\" target=\"_blank\" rel=\"noopener\">https:\/\/doi.org\/10.1021\/acs.organomet.4c00232<\/a><br \/><strong>Comment<\/strong>: One of our favorites of the year that we discussed in depth in our newsletter and blog <a href=\"https:\/\/hepatochem.com\/pulsed-light-photochemistry-yes-no-or-maybe\/\" target=\"_blank\" rel=\"noopener\">here<\/a>: Should you pulse the LED for reaction?<br \/><a href=\"https:\/\/bsky.app\/profile\/evoluchem.bsky.social\/post\/3lbuifoc67s2j\" target=\"_blank\" rel=\"noopener\"><strong>Post<\/strong>:<\/a><\/p>\n<p><a href=\"https:\/\/bsky.app\/profile\/evoluchem.bsky.social\/post\/3lbuifoc67s2j\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-21870 size-large\" src=\"https:\/\/hepatochem.com\/wp-content\/uploads\/2025\/01\/Paper-3-1024x662.jpg\" alt=\"2024 Photochemistry\" width=\"1024\" height=\"662\" srcset=\"https:\/\/hepatochem.com\/wp-content\/uploads\/2025\/01\/Paper-3-980x633.jpg 980w, https:\/\/hepatochem.com\/wp-content\/uploads\/2025\/01\/Paper-3-480x310.jpg 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) 1024px, 100vw\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<h3>Paper 4:<br \/>Iterative One-Carbon Homologation of Unmodified Carboxylic Acids<\/h3>\n<p><strong>(Open Access)<br \/>Authors<\/strong>: Emilie Wheatley, Heorhii Melnychenko, and Mattia Silvi*<br \/><strong>Ref<\/strong>: J. Am. Chem. Soc. 2024, 146, 50, 34285\u201334291<br \/><strong>Link<\/strong>: <a href=\"https:\/\/pubs.acs.org\/doi\/10.1021\/jacs.4c13630\" target=\"_blank\" rel=\"noopener\">https:\/\/pubs.acs.org\/doi\/10.1021\/jacs.4c13630<\/a><br \/><strong>Comment: <\/strong>A relatively simple photochemical method for adding a single carbon, one at a time, repeat.<strong><br \/><a href=\"https:\/\/x.com\/SilviResearch\/status\/1866579212468998551\" target=\"_blank\" rel=\"noopener\">Post<\/a><\/strong>:<\/p>\n<p><a href=\"https:\/\/x.com\/SilviResearch\/status\/1866579212468998551\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-21871 alignnone size-large\" src=\"https:\/\/hepatochem.com\/wp-content\/uploads\/2025\/01\/Paper-4-1024x964.jpg\" alt=\"2024 Photochemistry\" width=\"1024\" height=\"964\" srcset=\"https:\/\/hepatochem.com\/wp-content\/uploads\/2025\/01\/Paper-4-980x923.jpg 980w, https:\/\/hepatochem.com\/wp-content\/uploads\/2025\/01\/Paper-4-480x452.jpg 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) 1024px, 100vw\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h3>Paper 5:<br \/>Metal-free photocatalytic cross-electrophile coupling enables C1 homologation and alkylation of carboxylic acids with aldehydes<\/h3>\n<p><strong>(Open Access)<\/strong><br \/><strong>Authors<\/strong>: Stefano Bonciolini, Antonio Pulcinella, Matteo Leone, Debora Schiroli, Adri\u00e1n Luguera Ruiz, Andrea Sorato, Maryne A.J.Dubois, Ranganath Gopalakrishnan, Geraldine Masson, NicolaDella Ca\u2019, Stefano Protti, Maurizio Fagnoni, Eli Zysman-Colman, Magnus Johansson and Timothy No\u00ebl*<br \/><strong>Ref<\/strong>: Nature Communications (2024) 15:1509<br \/><strong>Link<\/strong>: <a href=\"https:\/\/www.nature.com\/articles\/s41467-024-45804-z\" target=\"_blank\" rel=\"noopener\">https:\/\/www.nature.com\/articles\/s41467-024-45804-z<\/a><br \/><strong>Comment<\/strong>: We could have highlighted any number papers from the Noel group, but we&rsquo;ll go with this work with late-stage functionalization of peptides on solid support.<br \/><a href=\"https:\/\/x.com\/NoelGroupUvA\/status\/1759599638246547655\" target=\"_blank\" rel=\"noopener\"><strong>Post<\/strong>:<\/a><a href=\"https:\/\/x.com\/NoelGroupUvA\/status\/1759599638246547655\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-21872 alignnone size-large\" src=\"https:\/\/hepatochem.com\/wp-content\/uploads\/2025\/01\/Paper-5-982x1024.jpg\" alt=\"2024 Photochemistry\" width=\"982\" height=\"1024\" srcset=\"https:\/\/hepatochem.com\/wp-content\/uploads\/2025\/01\/Paper-5-980x1022.jpg 980w, https:\/\/hepatochem.com\/wp-content\/uploads\/2025\/01\/Paper-5-480x501.jpg 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) 982px, 100vw\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<h3>Paper 6:<br \/>Mechanistic Investigation, Wavelength-Dependent Reactivity, and Expanded Reactivity of N\u2212Aryl Azacycle Photomediated Ring Contractions<\/h3>\n<p><strong>Authors<\/strong>: Sojung F. Kim, Henrik Schwarz, Justin Jurczyk, Bailey R. Nebgen, Hailey Hendricks, Hojoon Park, Andrew Radosevich, Michael W. Zuerch,* Kaid Harper,* Michaelyn C. Lux,* Charles S. Yeung,* and Richmond Sarpong*<br \/><strong>Ref<\/strong>: J. Am. Chem. Soc. 2024, 146, 8, 5580\u20135596<br \/><strong>Link<\/strong>: <a href=\"https:\/\/pubs.acs.org\/doi\/10.1021\/jacs.3c13982\" target=\"_blank\" rel=\"noopener\">https:\/\/pubs.acs.org\/doi\/10.1021\/jacs.3c13982<\/a><br \/><strong>Comment: <\/strong>A very interesting, in-depth mechanistic look at ring contraction with a little bit of PhotoRedox Box&#x2122; as well.<strong><br \/><a href=\"https:\/\/x.com\/SarpongGroup\/status\/1757434473241890842\" target=\"_blank\" rel=\"noopener\">Post<\/a><\/strong>:<a href=\"https:\/\/x.com\/SarpongGroup\/status\/1757434473241890842\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-21873 alignnone size-large\" src=\"https:\/\/hepatochem.com\/wp-content\/uploads\/2025\/01\/Paper-6-1024x982.jpg\" alt=\"\" width=\"1024\" height=\"982\" srcset=\"https:\/\/hepatochem.com\/wp-content\/uploads\/2025\/01\/Paper-6-980x940.jpg 980w, https:\/\/hepatochem.com\/wp-content\/uploads\/2025\/01\/Paper-6-480x460.jpg 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) 1024px, 100vw\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<h3>Paper 7:<br \/>Cage escape governs photoredox reaction rates and quantum yields<\/h3>\n<p><strong>(Open Access)<br \/>Authors<\/strong>: Cui Wang, Han Li, Tobias H. B\u00fcrgin and Oliver S. Wenger*<br \/><strong>Ref<\/strong>: Nature Chemistry\u00a0volume\u00a016,\u00a0pages1151\u20131159 (2024)<br \/><strong>Link<\/strong>: <a href=\"https:\/\/www.nature.com\/articles\/s41557-024-01482-4\" target=\"_blank\" rel=\"noopener\">https:\/\/www.nature.com\/articles\/s41557-024-01482-4<\/a><br \/><strong>Comment: <\/strong>Cage escape, quantum yields, radical pairs, a really nice paper for the mechanistic portion of our list.<strong><br \/><a href=\"https:\/\/x.com\/WengerOliver\/status\/1769674807191244882\" target=\"_blank\" rel=\"noopener\">Post<\/a><\/strong>:<\/p>\n<p><a href=\"https:\/\/x.com\/WengerOliver\/status\/1769674807191244882\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-21874 alignnone size-large\" src=\"https:\/\/hepatochem.com\/wp-content\/uploads\/2025\/01\/Paper-7-1024x1012.jpg\" alt=\"\" width=\"1024\" height=\"1012\" srcset=\"https:\/\/hepatochem.com\/wp-content\/uploads\/2025\/01\/Paper-7-980x968.jpg 980w, https:\/\/hepatochem.com\/wp-content\/uploads\/2025\/01\/Paper-7-480x474.jpg 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) 1024px, 100vw\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<h3>Paper 8:<br \/>The Photoredox Paradox: Electron and Hole Upconversion as the Hidden Secrets of Photoredox Catalysis<\/h3>\n<p><strong>Authors<\/strong>: Igor V. Alabugin,* Paul Eckhardt, Kimberley M. Christopher, and Till Opatz*<br \/><strong>Ref<\/strong>: J. Am. Chem. Soc. 2024, 146, 40, 27233\u201327254<br \/><strong>Link<\/strong>: <a href=\"https:\/\/pubs.acs.org\/doi\/10.1021\/jacs.4c10422\" target=\"_blank\" rel=\"noopener\">https:\/\/pubs.acs.org\/doi\/10.1021\/jacs.4c10422<\/a><br \/><strong>Comment: <\/strong>This year was strong with mechanistic reviews \/ perspectives for photochemistry but we particularly enjoyed this work.<strong><br \/><a href=\"https:\/\/x.com\/J_A_C_S\/status\/1838990317183189171\" target=\"_blank\" rel=\"noopener\">Post<\/a><\/strong>:<\/p>\n<p><a href=\"https:\/\/x.com\/J_A_C_S\/status\/1838990317183189171\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-21875 alignnone size-large\" src=\"https:\/\/hepatochem.com\/wp-content\/uploads\/2025\/01\/Paper-8-1001x1024.jpg\" alt=\"\" width=\"1001\" height=\"1024\" srcset=\"https:\/\/hepatochem.com\/wp-content\/uploads\/2025\/01\/Paper-8-980x1002.jpg 980w, https:\/\/hepatochem.com\/wp-content\/uploads\/2025\/01\/Paper-8-480x491.jpg 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) 1001px, 100vw\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<h3>Paper 9:<br \/>Factors that Impact Photochemical Cage Escape Yields<\/h3>\n<p><strong>Authors<\/strong>: Matthew J. Goodwin, John C. Dickenson, Alexia Ripak, Alexander M. Deetz, Jackson S. McCarthy, Gerald J. Meyer,* and Ludovic Troian-Gautier*<br \/><strong>Ref<\/strong>: Chem. Rev. 2024, 124, 11, 7379\u20137464<br \/><strong>Link<\/strong>: <a href=\"https:\/\/pubs.acs.org\/doi\/10.1021\/acs.chemrev.3c00930\" target=\"_blank\" rel=\"noopener\">https:\/\/pubs.acs.org\/doi\/10.1021\/acs.chemrev.3c00930<\/a><br \/><strong>Comment: <\/strong>And to finish up our mechanistic section, this extensive discussion on photochemical cage escape.<br \/><a href=\"https:\/\/x.com\/LudoTroian\/status\/1790727174606967199\" target=\"_blank\" rel=\"noopener\"><strong>Post:<\/strong><\/a><\/p>\n<p><a href=\"https:\/\/x.com\/LudoTroian\/status\/1790727174606967199\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-21876 alignnone size-large\" src=\"https:\/\/hepatochem.com\/wp-content\/uploads\/2025\/01\/Paper-9-1024x945.jpg\" alt=\"\" width=\"1024\" height=\"945\" srcset=\"https:\/\/hepatochem.com\/wp-content\/uploads\/2025\/01\/Paper-9-980x904.jpg 980w, https:\/\/hepatochem.com\/wp-content\/uploads\/2025\/01\/Paper-9-480x443.jpg 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) 1024px, 100vw\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<h3>Paper 10:<br \/>Synthesis of N\u2011Sulfonyl Formamidines by Direct Condensation between Sulfonamide and Formamide Enabled by a Photogenerated Vilsmeier-Type Reagent<\/h3>\n<p><strong>Authors<\/strong>: Quentin Chevrier, Th\u00e9o Pierru, Anthony Craquelin, Perrine Maitrejean, Alexandre Jean,* and L\u00e9o Bettoni*<br \/><strong>Ref<\/strong>: Journal of Organic Chemistry\u00a02024\u00a089\u00a0(20), 15282-15288<br \/><strong>Link<\/strong>: <a href=\"https:\/\/pubs.acs.org\/doi\/10.1021\/acs.joc.4c02160\" target=\"_blank\" rel=\"noopener\">https:\/\/pubs.acs.org\/doi\/10.1021\/acs.joc.4c02160<\/a><br \/><strong>Comment<\/strong>: The first of three papers using the Lucent360&#x2122; that we want to highlight from the past year. Here is an interesting optimization of a synthetic reaction for synthesis of sulfonyl formamides.<br \/><a href=\"https:\/\/x.com\/EvoluChem\/status\/1876656606739657088\" target=\"_blank\" rel=\"noopener\"><strong>Post<\/strong>:<\/a><\/p>\n<p><a href=\"https:\/\/x.com\/EvoluChem\/status\/1876656606739657088\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-21877 alignnone size-large\" src=\"https:\/\/hepatochem.com\/wp-content\/uploads\/2025\/01\/Paper-10-1024x824.jpg\" alt=\"\" width=\"1024\" height=\"824\" srcset=\"https:\/\/hepatochem.com\/wp-content\/uploads\/2025\/01\/Paper-10-980x789.jpg 980w, https:\/\/hepatochem.com\/wp-content\/uploads\/2025\/01\/Paper-10-480x386.jpg 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) 1024px, 100vw\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<h3>Paper 11:<br \/>Accessing Cyclobutane Polymers: Overcoming Synthetic Challenges via Efficient Continuous Flow [2 + 2] Photopolymerization<\/h3>\n<p><strong>Authors<\/strong>: Sara El-Arid, Jason M. Lenihan, Andrew Jacobsen, Aaron B. Beeler,* and Mark W. Grinstaff*<br \/><strong>Ref<\/strong>: ACS Macro Lett. 2024, 13, 607\u2212613<br \/><strong>Link<\/strong>: <a href=\"https:\/\/pubs.acs.org\/doi\/10.1021\/acsmacrolett.4c00083\" target=\"_blank\" rel=\"noopener\">https:\/\/pubs.acs.org\/doi\/10.1021\/acsmacrolett.4c00083<\/a><br \/><strong>Comment<\/strong>: And the second with the Lucent360&#x2122;, an interesting optimization and scale up of some rather unique polymers.<br \/><strong>Post<\/strong>:<\/p>\n<p><a href=\"https:\/\/hepatochem.com\/wp-content\/uploads\/2025\/01\/Paper-11-scaled.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-21878 alignnone size-large\" src=\"https:\/\/hepatochem.com\/wp-content\/uploads\/2025\/01\/Paper-11-1024x300.jpg\" alt=\"\" width=\"1024\" height=\"300\" srcset=\"https:\/\/hepatochem.com\/wp-content\/uploads\/2025\/01\/Paper-11-980x287.jpg 980w, https:\/\/hepatochem.com\/wp-content\/uploads\/2025\/01\/Paper-11-480x141.jpg 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) 1024px, 100vw\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<h3>Paper 12:<br \/>Mild Strategy for the Preparation of Alkyl Sulfonyl Fluorides from Alkyl Bromides and Alcohols Using Photoredox Catalysis and Flow Chemistry<\/h3>\n<p><strong>Authors<\/strong>: Alejandro Guti\u00e9rrez-Gonz\u00e1lez, Staffan Karlsson, Daniele Leonori, and Mateusz P. Plesniak*<br \/><strong>Ref<\/strong>: Org. Lett. 2024, 26, 18, 3972\u20133976<br \/><strong>Link<\/strong>: <a href=\"https:\/\/pubs.acs.org\/doi\/10.1021\/acs.orglett.4c01216\" target=\"_blank\" rel=\"noopener\">https:\/\/pubs.acs.org\/doi\/10.1021\/acs.orglett.4c01216<\/a><br \/><strong>Comment<\/strong>: And finally, this work with our favorite line of the year from the authors, \u00ab\u00a0\u201cSwitching to a Lucent 360&#x2122; photoreactor was crucial in this project because this reactor allows for fine-tuning of the irradiation wavelength, light intensity, and reaction temperature and provides a higher throughput (24 \u00d7 4 mL vials).\u201d<br \/><strong>Post<\/strong>:<\/p>\n<p><a href=\"https:\/\/hepatochem.com\/wp-content\/uploads\/2025\/01\/Paper-12-scaled.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-21879 alignnone size-large\" src=\"https:\/\/hepatochem.com\/wp-content\/uploads\/2025\/01\/Paper-12-1024x157.jpg\" alt=\"\" width=\"1024\" height=\"157\" srcset=\"https:\/\/hepatochem.com\/wp-content\/uploads\/2025\/01\/Paper-12-980x150.jpg 980w, https:\/\/hepatochem.com\/wp-content\/uploads\/2025\/01\/Paper-12-480x74.jpg 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) 1024px, 100vw\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<h3>Paper 13:<br \/>Chiral arylsulfinylamides as reagents for visible light-mediated asymmetric alkene aminoarylations<\/h3>\n<p><strong>Authors<\/strong>: C\u00e9dric Hervieu, Mariia S. Kirillova, Yawen Hu, Sergio Cuesta-Galisteo, Est\u00edbaliz Merino and Cristina Nevado*<br \/><strong>Ref<\/strong>: Nature Chemistry\u00a0volume\u00a016,\u00a0pages607\u2013614 (2024)<br \/><strong>Link<\/strong>: <a href=\"https:\/\/www.nature.com\/articles\/s41557-023-01414-8\" target=\"_blank\" rel=\"noopener\">https:\/\/www.nature.com\/articles\/s41557-023-01414-8<\/a><br \/><strong>Comment<\/strong>: This work by Christina Nevado and coworkers took advantage of the PhotoRedox Box TC&#x2122; to run interesting photochemistry at -20C.<br \/><a href=\"https:\/\/x.com\/NevadoLab\/status\/1747211541198303461\" target=\"_blank\" rel=\"noopener\"><strong>Post<\/strong>:<\/a><\/p>\n<p><a href=\"https:\/\/x.com\/NevadoLab\/status\/1747211541198303461\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-21880 alignnone size-large\" src=\"https:\/\/hepatochem.com\/wp-content\/uploads\/2025\/01\/Paper-13-1024x992.jpg\" alt=\"\" width=\"1024\" height=\"992\" srcset=\"https:\/\/hepatochem.com\/wp-content\/uploads\/2025\/01\/Paper-13-980x949.jpg 980w, https:\/\/hepatochem.com\/wp-content\/uploads\/2025\/01\/Paper-13-480x465.jpg 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) 1024px, 100vw\" \/><\/a><\/p>\n<h3>\u00a0<\/h3>\n<h3>Paper 14:<br \/>At the Speed of Light: The Systematic Implementation of Photoredox Cross-Coupling Reactions for Medicinal Chemistry Research<\/h3>\n<p><strong>Authors<\/strong>: Nathan J. Gesmundo,* Alexander J. Rago, Jonathon M. Young, Sebastian Keess, and Ying Wang*<br \/><strong>Ref<\/strong>: J. Org. Chem. 2024, 89, 22, 16070\u201316092<br \/><strong>Link<\/strong>: <a href=\"https:\/\/pubs.acs.org\/doi\/10.1021\/acs.joc.3c02351\" target=\"_blank\" rel=\"noopener\">https:\/\/pubs.acs.org\/doi\/10.1021\/acs.joc.3c02351<\/a><br \/><strong>Comment<\/strong>: A very informative description of the use of photoredox chemistry in the medical chemistry programs at AbbVie including extensive use of the PhotoRedox Box Duo&#x2122; and EvoluChem&#x2122; LEDs.<br \/><a href=\"https:\/\/bsky.app\/profile\/evoluchem.bsky.social\/post\/3lf5yy2w4fc2q\" target=\"_blank\" rel=\"noopener\"><strong>Post<\/strong>:<\/a><\/p>\n<p><a href=\"https:\/\/bsky.app\/profile\/evoluchem.bsky.social\/post\/3lf5yy2w4fc2q\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-21881 alignnone size-large\" src=\"https:\/\/hepatochem.com\/wp-content\/uploads\/2025\/01\/Paper-14-1024x743.jpg\" alt=\"\" width=\"1024\" height=\"743\" srcset=\"https:\/\/hepatochem.com\/wp-content\/uploads\/2025\/01\/Paper-14-980x711.jpg 980w, https:\/\/hepatochem.com\/wp-content\/uploads\/2025\/01\/Paper-14-480x348.jpg 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) 1024px, 100vw\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<h3>Paper 15:<br \/>Wireless magnetoelectrically powered organic light-emitting diodes<\/h3>\n<p><strong>(Open Access)<\/strong><br \/><strong>Authors<\/strong>: Julian F. Butscher, Sabina Hillebrandt, Andreas Mischok, Anna Popczyk, Jonathan H. H. Booth, Malte C. Gather*<br \/><strong>Ref<\/strong>: Science Advances, 2024,10, 10, eadm7613<br \/><strong>Link<\/strong>: <a href=\"https:\/\/www.science.org\/doi\/10.1126\/sciadv.adm7613\" target=\"_blank\" rel=\"noopener\">https:\/\/www.science.org\/doi\/10.1126\/sciadv.adm7613<\/a><br \/><strong>Comment<\/strong>: One of the most fun papers of the year. A very interesting look at wireless LEDs and the endless possibilities for what you might be able to do with photons when you don&rsquo;t need a wire.<br \/><a href=\"https:\/\/x.com\/BryanKeIIy\/status\/1765816323735433727\" target=\"_blank\" rel=\"noopener\"><strong>Post<\/strong>:<\/a><\/p>\n<p><a href=\"https:\/\/x.com\/BryanKeIIy\/status\/1765816323735433727\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-21882 alignnone size-large\" src=\"https:\/\/hepatochem.com\/wp-content\/uploads\/2025\/01\/Paper-15-1024x991.jpg\" alt=\"\" width=\"1024\" height=\"991\" srcset=\"https:\/\/hepatochem.com\/wp-content\/uploads\/2025\/01\/Paper-15-980x948.jpg 980w, https:\/\/hepatochem.com\/wp-content\/uploads\/2025\/01\/Paper-15-480x465.jpg 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) 1024px, 100vw\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<h3>Paper 16:<br \/>Unraveling the Prominent Existence of Trace Metals in Photocatalysis: Exploring Iron Impurity Effects<\/h3>\n<p><strong>Authors<\/strong>: Yahao Huang, Miao Wang, Wei Liu, Qiang Wu, and Peng Hu*<br \/><strong>Ref<\/strong>: J. Org. Chem. 2024, 89, 6, 4156\u20134164<br \/><strong>Link<\/strong>: <a href=\"https:\/\/pubs.acs.org\/doi\/10.1021\/acs.joc.4c00155\" target=\"_blank\" rel=\"noopener\">https:\/\/pubs.acs.org\/doi\/10.1021\/acs.joc.4c00155<\/a><br \/><strong>Comment<\/strong>: We wrote about this paper in our blog earlier this year looking at trace metal effects in supposedly metal free reactions, implications of different impurities and whether or not anything can ever be truly metal free.<br \/><a href=\"https:\/\/x.com\/LCSOJournalClub\/status\/1767540153638142145\" target=\"_blank\" rel=\"noopener\"><strong>Post<\/strong>:<\/a><\/p>\n<p><a href=\"https:\/\/x.com\/LCSOJournalClub\/status\/1767540153638142145\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-21883 alignnone size-large\" src=\"https:\/\/hepatochem.com\/wp-content\/uploads\/2025\/01\/Paper-16-1024x957.jpg\" alt=\"\" width=\"1024\" height=\"957\" srcset=\"https:\/\/hepatochem.com\/wp-content\/uploads\/2025\/01\/Paper-16-980x916.jpg 980w, https:\/\/hepatochem.com\/wp-content\/uploads\/2025\/01\/Paper-16-480x449.jpg 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) 1024px, 100vw\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<h3>Paper 17:<br \/>Photochemical Skeletal Editing of Pyridines to Bicyclic Pyrazolines and Pyrazoles<\/h3>\n<p><strong>Authors<\/strong>: Jiajing Luo, Qingyang Zhou, Zhou Xu, K. N. Houk,* and Ke Zheng*<br \/><strong>Ref:<\/strong> J. Am. Chem. Soc. 2024, 146, 31, 21389\u201321400<br \/><strong>Link<\/strong>: <a href=\"https:\/\/pubs.acs.org\/doi\/10.1021\/jacs.4c03713\" target=\"_blank\" rel=\"noopener\">https:\/\/pubs.acs.org\/doi\/10.1021\/jacs.4c03713<\/a><br \/><strong>Comment<\/strong>: A fascinating look at skeleton editing turning a single pyridine into multiple ring systems.<br \/><a href=\"https:\/\/x.com\/J_A_C_S\/status\/1802647018461925677\" target=\"_blank\" rel=\"noopener\"><strong>Post<\/strong>:<\/a><\/p>\n<p><a href=\"https:\/\/x.com\/J_A_C_S\/status\/1802647018461925677\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-21884 alignnone size-large\" src=\"https:\/\/hepatochem.com\/wp-content\/uploads\/2025\/01\/Paper-17-1024x967.jpg\" alt=\"\" width=\"1024\" height=\"967\" srcset=\"https:\/\/hepatochem.com\/wp-content\/uploads\/2025\/01\/Paper-17-980x925.jpg 980w, https:\/\/hepatochem.com\/wp-content\/uploads\/2025\/01\/Paper-17-480x453.jpg 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) 1024px, 100vw\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h3>Paper 18:<br \/>Photoinduced Copper-Catalyzed Enantioselective Allylic C(sp3)-H Oxidation of Acyclic 1-Aryl-2-alkyl Alkenes as Limiting Substrates<\/h3>\n<p><strong>(Open Access)<br \/>Authors<\/strong>: Xuemeng Chen, Heng-Hui Li, and S\u00f8ren Kramer*<br \/><strong>Ref<\/strong>: Angew. Chem. Int. Ed. 2024, 63, e202413190<br \/><strong>Link<\/strong>: <a href=\"https:\/\/onlinelibrary.wiley.com\/doi\/10.1002\/anie.202413190\" target=\"_blank\" rel=\"noopener\">https:\/\/onlinelibrary.wiley.com\/doi\/10.1002\/anie.202413190<\/a><br \/><strong>Comment<\/strong>: A new copper-catalyzed method for achieving highly enantioselective C-H oxidation of alkenes.<br \/><a href=\"https:\/\/x.com\/angew_chem\/status\/1846232109507096965\" target=\"_blank\" rel=\"noopener\"><strong>Post<\/strong>:<\/a><\/p>\n<p><a href=\"https:\/\/x.com\/angew_chem\/status\/1846232109507096965\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-21885 alignnone size-large\" src=\"https:\/\/hepatochem.com\/wp-content\/uploads\/2025\/01\/Paper-18-1024x956.jpg\" alt=\"\" width=\"1024\" height=\"956\" srcset=\"https:\/\/hepatochem.com\/wp-content\/uploads\/2025\/01\/Paper-18-980x915.jpg 980w, https:\/\/hepatochem.com\/wp-content\/uploads\/2025\/01\/Paper-18-480x448.jpg 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) 1024px, 100vw\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<h3>Paper 19:<br \/>Decarboxylative Cross-Coupling Enabled by Fe and Ni Metallaphotoredox Catalysis<\/h3>\n<p><strong>(Open Access)<\/strong><br \/><strong>Authors<\/strong>: Reem Nsouli, Sneha Nayak, Venkadesh Balakrishnan, Jung-Ying Lin, Benjamin K. Chi, Hannah G. Ford, Andrew V. Tran, Ilia A. Guzei, John Bacsa, Nicholas R. Armada, Fedor Zenov, Daniel J. Weix,* and Laura K. G. Ackerman-Biegasiewicz*<br \/><strong>Ref<\/strong>: J. Am. Chem. Soc. 2024, 146, 29551\u221229559<br \/><strong>Link<\/strong>: <a href=\"https:\/\/pubs.acs.org\/doi\/10.1021\/jacs.4c09621\" target=\"_blank\" rel=\"noopener\">https:\/\/pubs.acs.org\/doi\/10.1021\/jacs.4c09621<\/a><br \/><strong>Comment<\/strong>: A new cross-coupling method that\u2019s uses very low amounts of inexpensive Fe and Ni salts.<br \/><a href=\"https:\/\/x.com\/weixgroup\/status\/1847334724861071393\" target=\"_blank\" rel=\"noopener\"><strong>Post<\/strong>:<\/a><\/p>\n<p><a href=\"https:\/\/x.com\/weixgroup\/status\/1847334724861071393\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-21886 alignnone size-large\" src=\"https:\/\/hepatochem.com\/wp-content\/uploads\/2025\/01\/Paper-19-1024x838.jpg\" alt=\"\" width=\"1024\" height=\"838\" srcset=\"https:\/\/hepatochem.com\/wp-content\/uploads\/2025\/01\/Paper-19-980x802.jpg 980w, https:\/\/hepatochem.com\/wp-content\/uploads\/2025\/01\/Paper-19-480x393.jpg 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) 1024px, 100vw\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<h3>Paper 20:<br \/>Photoredox Nucleophilic (Radio)fluorination of Alkoxyamines<\/h3>\n<p><strong>Authors<\/strong>: Sebastiano Ortalli, Joseph Ford, Andr\u00e9s A. Trabanco, Matthew Tredwell, and V\u00e9ronique Gouverneur*<br \/><strong>Ref<\/strong>: J. Am. Chem. Soc. 2024, 146, 17, 11599\u201311604<br \/><strong>Link<\/strong>:\u00a0 <a href=\"https:\/\/pubs.acs.org\/doi\/10.1021\/jacs.4c02474\" target=\"_blank\" rel=\"noopener\">https:\/\/pubs.acs.org\/doi\/10.1021\/jacs.4c02474<\/a><br \/><strong>Comment<\/strong>: We wrote about this photochemical method for radiolabeling on <a href=\"https:\/\/hepatochem.com\/photocatalytic-radiolabeling-with-18f-in-flow\/\" target=\"_blank\" rel=\"noopener\">our blog<\/a> earlier this year. A highly efficient method in flow to make hot F labeled compounds.<br \/><a href=\"https:\/\/x.com\/GouverneurGroup\/status\/1782744947193516478\" target=\"_blank\" rel=\"noopener\"><strong>Post<\/strong>:<\/a><\/p>\n<p><a href=\"https:\/\/x.com\/GouverneurGroup\/status\/1782744947193516478\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-21887 alignnone size-large\" src=\"https:\/\/hepatochem.com\/wp-content\/uploads\/2025\/01\/Paper-20-1024x1003.jpg\" alt=\"\" width=\"1024\" height=\"1003\" srcset=\"https:\/\/hepatochem.com\/wp-content\/uploads\/2025\/01\/Paper-20-980x960.jpg 980w, https:\/\/hepatochem.com\/wp-content\/uploads\/2025\/01\/Paper-20-480x470.jpg 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) 1024px, 100vw\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<h3>Paper 21:<br \/>Red-light-mediated copper-catalyzed photoredox catalysis promotes regioselectivity switch in the difunctionalization of alkenes<\/h3>\n<p><strong>(Open Access)<br \/>Authors<\/strong>: Tong Zhang, Jabor Rabeah and Shoubhik Das*<br \/><strong>Ref<\/strong>: Nature Communications (2024) 15:5208<br \/><strong>Link<\/strong>: <a href=\"https:\/\/doi.org\/10.1038\/s41467-024-49514-4\" target=\"_blank\" rel=\"noopener\">https:\/\/doi.org\/10.1038\/s41467-024-49514-4<\/a><br \/><strong>Comment<\/strong>: We read a bit about red light chemistry this year and this is one of our favorites.<br \/><a href=\"https:\/\/x.com\/shoubhikdas4\/status\/1803327055532007479\" target=\"_blank\" rel=\"noopener\"><strong>Post<\/strong>:<\/a><\/p>\n<p><a href=\"https:\/\/x.com\/shoubhikdas4\/status\/1803327055532007479\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-21888 alignnone size-large\" src=\"https:\/\/hepatochem.com\/wp-content\/uploads\/2025\/01\/Paper-21-1024x881.jpg\" alt=\"\" width=\"1024\" height=\"881\" srcset=\"https:\/\/hepatochem.com\/wp-content\/uploads\/2025\/01\/Paper-21-980x843.jpg 980w, https:\/\/hepatochem.com\/wp-content\/uploads\/2025\/01\/Paper-21-480x413.jpg 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) 1024px, 100vw\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<h3>Paper 22:<br \/>In Situ UV\u2212Vis\u2212NIR Absorption Spectroscopy and Catalysis<\/h3>\n<p><strong>Authors<\/strong>: Max L. Bols, Jing Ma, Fatima Rammal, Dieter Plessers, Xuejiao Wu, Sara Navarro-Ja\u00e9n, Alexander J. Heyer, Bert F. Sels,* Edward I. Solomon,* and Robert A. Schoonheydt*<br \/><strong>Ref<\/strong>: Chem. Rev. 2024, 124, 5, 2352\u20132418<br \/><strong>Link<\/strong>: <a href=\"https:\/\/pubs.acs.org\/doi\/10.1021\/acs.chemrev.3c00602\" target=\"_blank\" rel=\"noopener\">https:\/\/pubs.acs.org\/doi\/10.1021\/acs.chemrev.3c00602<\/a><br \/><strong>Comment<\/strong>: And we&rsquo;ll close with 3 reviews. The first is a look at spectroscopy techniques involved in catalysis. A must read for everyone looking for better ways to monitor and understand their reactions.<\/p>\n<p>&nbsp;<\/p>\n<h3>Paper 23:<br \/>Organic Synthesis Away from Equilibrium: Contrathermodynamic Transformations Enabled by Excited-State Electron Transfer<\/h3>\n<p><strong>Authors<\/strong>: Angela Lin, Sumin Lee, and Robert R. Knowles*<br \/><strong>Ref<\/strong>: Acc. Chem. Res. 2024, 57, 13, 1827\u20131838<br \/><strong>Link<\/strong>: <a href=\"https:\/\/pubs.acs.org\/doi\/10.1021\/acs.accounts.4c00227\" target=\"_blank\" rel=\"noopener\">https:\/\/pubs.acs.org\/doi\/10.1021\/acs.accounts.4c00227<\/a><br \/><strong>Comment<\/strong>: The second is this review from the Knowles lab looking at using photoredox chemistry to perform thermodynamically unfavorable reactions.<br \/><a href=\"https:\/\/x.com\/PrincetonChem\/status\/1815750000355258816\" target=\"_blank\" rel=\"noopener\"><strong>Post<\/strong>:<\/a><\/p>\n<p><a href=\"https:\/\/x.com\/PrincetonChem\/status\/1815750000355258816\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-21889 alignnone size-large\" src=\"https:\/\/hepatochem.com\/wp-content\/uploads\/2025\/01\/Paper-23-950x1024.jpg\" alt=\"\" width=\"950\" height=\"1024\" \/><\/a><\/p>\n<h3>\u00a0<\/h3>\n<h3>Paper 24:<br \/>Better Together: Photoredox\/Copper Dual Catalysis in Atom Transfer Radical Polymerization<\/h3>\n<p><strong>(Open Access)<br \/>Authors<\/strong>: Julian Sobieski, Adam Gorczy\u0144ski,* Arman Moini Jazani, Gorkem Yilmaz, and Krzysztof Matyjaszewski*<br \/><strong>Ref<\/strong>: Angew. Chem. Int. Ed. 2024, e202415785<br \/><strong>Link<\/strong>: <a href=\"https:\/\/onlinelibrary.wiley.com\/doi\/full\/10.1002\/anie.202415785\" target=\"_blank\" rel=\"noopener\">https:\/\/onlinelibrary.wiley.com\/doi\/full\/10.1002\/anie.202415785<\/a><br \/><strong>Comment<\/strong>: And finally, this review looking at photoredox methods using copper for polymerization reactions.<br \/><a href=\"https:\/\/onlinelibrary.wiley.com\/doi\/10.1002\/anie.202415785\" target=\"_blank\" rel=\"noopener\"><strong>Post<\/strong>:<\/a><\/p>\n<p><a href=\"https:\/\/onlinelibrary.wiley.com\/doi\/10.1002\/anie.202415785\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-21890 alignnone size-large\" src=\"https:\/\/hepatochem.com\/wp-content\/uploads\/2025\/01\/Paper-24-1024x622.jpg\" alt=\"\" width=\"1024\" height=\"622\" srcset=\"https:\/\/hepatochem.com\/wp-content\/uploads\/2025\/01\/Paper-24-980x595.jpg 980w, https:\/\/hepatochem.com\/wp-content\/uploads\/2025\/01\/Paper-24-480x292.jpg 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) 1024px, 100vw\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<h4 style=\"text-align: center;\">Thanks for reading.<\/h4>\n<h4 style=\"text-align: center;\">Send your thoughts or feedback to <span style=\"color: #3366ff;\"><a style=\"color: #3366ff;\" href=\"mailto:info@hepatochem.com\" target=\"_blank\" rel=\"noopener\">info@hepatochem.com<\/a><\/span><\/h4>\n<h4 style=\"text-align: center;\">or our new Bluesky account at <span style=\"color: #3366ff;\"><a style=\"color: #3366ff;\" href=\"https:\/\/bsky.app\/profile\/evoluchem.bsky.social\" target=\"_blank\" rel=\"noopener\">@evoluchem.bsky.social<\/a><\/span>.<\/h4>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Looking back on the past year in photochemistry, we want to recognize 24 of our favorite papers from 2024 that tickled our brains.<\/p>\n","protected":false},"author":7786,"featured_media":24767,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"We are huge fans of what could be classified as \u201ccreative photocatalysts\u201d. One of our favorite papers over the past few years was this work that we wrote about <a href=\"https:\/\/hepatochem.com\/photoredox-chemistry-organic-dyes\/\" target=\"_blank\" rel=\"noopener\">here<\/a> using Hypericum flowers as an organic dye for C-C bond formation. A few dried flower petals, a base and an LED and you have a new photochemical reaction. So, if your paper can be described as using a \u201cFenton Boat photocatalyst\u201d, well you have our attention.\r\nIf you Google \u201cFenton Boats\u201d, you get links to a boat shop in Fenton, Michigan, but we\u2019ll argue that soon you will get this recent paper in Angewandte from Zhijun Chen and coworkers entitled, \u201cA Sustainable Wood-Based Iron Photocatalyst for Multiple Uses with Sunlight: Water Treatment and Radical <a href=\"http:\/\/doi.org\/10.1002\/anie.202301242\" target=\"_blank\" rel=\"noopener\">Photopolymerization<\/a>\u201d\r\nWhat\u2019s a Fenton Boat? Stick around and we\u2019ll explain. And show you a video of a photocatalyst boat.\r\n\r\nEmbed tweet:\r\n<blockquote class=\"twitter-tweet\"><p lang=\"en\" dir=\"ltr\">A Sustainable Wood-Based Iron Photocatalyst for Multiple Uses with Sunlight: Water Treatment and Radical Photopolymerization (Zhijun Chen and co-workers) <a href=\"https:\/\/t.co\/ayHH23uBwY\">https:\/\/t.co\/ayHH23uBwY<\/a> <a href=\"https:\/\/t.co\/m4a8kJ0jet\">pic.twitter.com\/m4a8kJ0jet<\/a><\/p>\u2014 Angewandte Chemie (@angew_chem) <a href=\"https:\/\/twitter.com\/angew_chem\/status\/1653374294762614786?ref_src=twsrc%5Etfw\">May 2, 2023<\/a><\/blockquote> <script async src=\"https:\/\/platform.twitter.com\/widgets.js\" charset=\"utf-8\"><\/script>\r\n\r\nWhile we had a little fun with that lead up that may make it seem that we are making light of this work, we\u2019re not. This is truly impressive. The authors made a sustainable, useful photocatalyst out of three of the cheapest things available, wood, iron and sunlight. There are many big picture problems that can be aided with photocatalysis. But there are certain problems where the task is so vast like water treatment that the solution needs to be less than cheap to have any chance of making a realistic improvement. Few things are cheaper than wood, iron and sunlight.\r\nA sustainable catalyst should be recyclable and derived from sustainable materials. Iron oxides are well known materials for heterogenous photocatalysis, although to be successful often need to be modified with photosensitizers or frameworks derived from fossil fuels. Wood is a natural replacement. Natural wood is fluorescent and phosphorescent due to lignin, cellulose and hemicellulose. For this work, modified wood doped with iron oxide acts as a photosensitizer for photocatalytic cycles, mainly photo-Fenton reactions and photopolymerizations.\r\nThe catalyst is prepared by treating wood with BBr3 to remove the methyl groups from the lignin and creating free phenols. The D-Wood was then treated with FeCl3 followed by NaOH. This process was repeated 5 times, to give Fe3O4-D-Wood containing 19% weight percent Fe3O4 (Figure 1). This material was then extensively characterized, to an extent that we can\u2019t do justice in this short piece. An alphabet soup of techniques characterized the structure including computer tomography (CT), X-ray diffraction (XRD), FT-IR, XPS, Electrochemical impedance spectroscopy (EIS), Cyclic voltammetry (CV) and visible absorption spectroscopy. All the data support a new material capable of proton electron transfer (PET) reactions consisting of a wood chamber filled with Fe3O4 particles coordinated by free phenols. The material has red-shifted absorbance observed after treating the D-Wood with iron confirming ligand to metal interactions. Fluorescence (1.64 ns) and Phosphorescence decay (0.38 ms) of D-Wood were confirmed demonstrating singlet and triplet states, while both were both suppressed upon addition iron, suggesting the new catalyst has non-emissive excited states. Similar characterization of Fe3O4-Wood (no demethylation) demonstrates the importance of the free phenols to catalytic activity.\r\nFigure 1: Fe3O4-D-Wood photocatalyst\r\n\r\n\u00a0\r\n\r\nThe authors next set up an experiment to test their new catalyst for the Photo-Fenton degradation of rhodamine B (RhB) with H2O2. In the dark, Fe3O4, Fe3O4-Wood, a mixture of separate iron and D-wood powders as a control and Fe3O4-D-Wood powder showed slow degradation (0.002-0.007 min-1). Turn on the artificial sunlight source and Fe3O4-D-Wood increases to 0.13 min-1 with 99% degradation of rhodamine by UV\/Vis spectra while no increased rate was observed for the other species. Controls confirm that reaction is proceeding via the wood catalyst and not iron leaching into solution. Further experiments varying pH, testing stability of the catalyst and recycling the catalyst were all performed with a simulated pollution sample for the degradation of 8 common pollutants. After 40 minutes of irradiation, 51% of organic contaminants were removed.\r\nAs one does when making photocatalysts, the authors also tested materials made of different sources of natural wood including Beech wood, Pine wood, and Red Walnut with small variations in efficacy. Why did we feel the need to add this detail? Because for some reason the idea that different species of trees have different photochemical properties based on the structure of their lignin is fascinating to us simple chemists.\r\nSo, we promised you a Fenton Boat? Why a boat? Because small powder chunks of the wood catalyst sink to the bottom of a polluted body of water, limiting interaction with sunlight while a boat floats. The wooden boat was treated with BBr3\/Fe conditions to generate a Fenton Boat that floats. The Fenton Boat absorbs polluted water via capillary action into the wood and concentrates in the pores and degrades via the Fenton reaction initiated by the photocatalyst. In a test experiment using artificial sunlight nearly 100% of RhB degradation was observed and in polluted water organic contaminants decreased by ~66%. The boat can be reused and more importantly recovered and moved by magnets. Just an incredible idea. There is far more work left to discuss including their experiments looking at radical traps, the kinetics, and discussion of mechanism, but we know everyone just wants to see the boat. For the purposes of scale, we\u2019ll note that the boat fits inside a 1 L beaker. To clean up a larger body of water, we\u2019re going to need a bigger boat.\r\n\r\nFor a video of the boat in action click through here.","_et_gb_content_width":"","_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[485,478],"tags":[],"class_list":["post-24766","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-feature-1","category-scientific-literature"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>2024 Photochemistry Year in Review<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/hepatochem.com\/fr\/2024-photochemistry-year-in-review\/\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"Hepatochem\" \/>\n\t<meta name=\"twitter:label2\" 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