Room-Temperature Synthesis of Trisubstituted Allenylsilanes via Regioselective C–H Functionalization
作者:Rong Zeng、Shangze Wu、Chunling Fu、Shengming Ma
DOI:10.1021/ja409861s
日期:2013.12.11
A Rh(III)-catalyzed o-C-H bond functionalization-based allenylation reaction of allenylsilanes 2 with N-methoxybenzamides 1 affords poly-substituted allenylsilanes with a wide range of attractive functional groups in moderate to excellent yields under very mild conditions (20 degrees C, compatible with ambient air and moisture). Those products may be transformed to different products with attractive structural features. Careful mechanistic studies suggest the reaction proceeds via o-rhodation, regioselective insertion, and beta-H elimination.