Visible-Light-Induced Decarboxylative Cyclization/Hydrogenation Cascade Reaction to Access Phenanthridin-6-yl(aryl)methanol by an Electron Donor–Acceptor Complex
作者:Wei Shi、Fang Ma、Pinhua Li、Lei Wang、Tao Miao
DOI:10.1021/acs.joc.0c01916
日期:2020.11.6
visible-light-induced decarboxylative cyclization/hydrogenation cascade reaction of α-oxocarboxylic acids and 2-isocyanobiaryls has been developed. Without the need of any external photosensitizer, oxidant, and reductant, this method offers a mild and green approach for the synthesis of diverse alcohols in moderate to good yields. A mechanism indicated that an electron donor–acceptor complex-driven decarboxylation,
已经开发出新颖且有效的可见光诱导的α-氧代羧酸和2-异氰基联芳基的脱羧环化/氢化级联反应。不需要任何外部光敏剂,氧化剂和还原剂,该方法提供了一种温和而绿色的方法,可以以中等到良好的产率合成各种醇。一种机理表明,电子供体-受体复合物驱动的脱羧作用,自由基加成/环化作用以及酮的原位光化学还原为醇类可能与反应有关。