作者:Tamaki Hoshikawa、Shin Kamijo、Masayuki Inoue
DOI:10.1039/c2ob26785c
日期:——
C(sp3)–H bonds has been developed. After C–H abstraction by the photo-excited benzophenone, a two-carbon unit was efficiently transferred to the generated radical from 1-tosyl-2-(trimethylsilyl)acetylene to afford the alkynylated product. The present reaction enables construction of various tri- and tetra-substituted carbons from heteroatom-substituted methylenes, methines and alkanes in a highly chemoselective
已经开发出一种用于光化学炔化未反应的C(sp 3)–H键的通用策略。通过光激发的二苯甲酮将C–H抽象化后,一个两碳单元被有效地转移至由1-甲苯磺酰基-2-(三甲基甲硅烷基)乙炔得到炔基化产物。本反应使得能够以高度化学选择性的方式由杂原子取代的亚甲基,次甲基和烷烃构造各种三和四取代的碳,并且将用作快速构建复杂结构的新合成策略。