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This study developed a novel photocatalytic dual carbon\u2013carbon bond cleavage cross-coupling reaction between vicinal dicarbonyl compounds and carboxylic acids. The reaction proceeds under mild conditions and can be used for the synthesis of target products containing sensitive chemical bonds and various heterocyclic skeletons. Through a series of control experiments, including fluorescence quenching experiments, light on\/off experiments, and free radical trapping experiments, this study proposed that the reaction undergoes a free radical cross-coupling pathway involving dual carbon\u2013carbon bond cleavage.<\/jats:p>","DOI":"10.1021\/acs.joc.6c01369","type":"journal-article","created":{"date-parts":[[2026,8,20]],"date-time":"2026-08-20T18:01:48Z","timestamp":1787248908000},"page":"12036-12049","source":"Crossref","is-referenced-by-count":0,"title":["Photocatalytic Dual\nCarbon\u2013Carbon Bond Cleavage\nCross-Coupling Reaction between Vicinal Dicarbonyl Compounds and Carboxylic\nAcids"],"prefix":"10.1021","volume":"91","author":[{"given":"Fupan","family":"Ding","sequence":"first","affiliation":[{"name":"Tianjin University , , 92 Weijin Road , ,","place":["Tianjin, China, 300072"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chenyuan","family":"Qu","sequence":"additional","affiliation":[{"name":"Tianjin University , , 92 Weijin Road , ,","place":["Tianjin, China, 300072"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiaodong","family":"Tang","sequence":"additional","affiliation":[{"name":"Tianjin University , , 92 Weijin Road , ,","place":["Tianjin, China, 300072"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6848-2868","authenticated-orcid":true,"given":"Chun","family":"Zhang","sequence":"additional","affiliation":[{"name":"Tianjin University , , 92 Weijin Road , ,","place":["Tianjin, China, 300072"]},{"name":"Qinghai Minzu University , , ,","place":["Xining, P. 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