Benzylic C–H heteroarylation of <i>N</i>-(benzyloxy)phthalimides with cyanopyridines enabled by photoredox 1,2-hydrogen atom transfer
作者:Long-Jin Zhong、Hong-Yu Wang、Xuan-Hui Ouyang、Jin-Heng Li、De-Lie An
DOI:10.1039/d0cc03619f
日期:——
A visible light initiated α-C(sp3)–H arylation of N-(benzyloxy)phthalimides with cyanopyridines for the construction of highly valuable pyridinyl-containing diarylmethanols, including bioactive motif-based analogues, is reported. This method enables arylation of the C(sp3)–H bonds adjacent to an oxygen atom through alkoxy radical formation by O–N bond cleavage, 1,2-hydrogen atom transfer (HAT), arylation
据报道,可见光引发了N-(苄氧基)邻苯二甲酰亚胺与氰基吡啶的α-C(sp 3)-H芳基化反应,用于构建高度有价值的含吡啶基二芳基甲醇,包括基于生物活性基序的类似物。这种方法通过O-N键裂解,1,2-氢原子转移(HAT),芳基化和C-CN键裂解级联,通过与烷氧基基团相邻的氧原子进行C(sp 3)-H键芳基化,并提供了一种利用1,2-HAT模式并入官能团以构建官能化醇的方法。