作者:Zhou, Pan、Ding, Ling、Liu, Yuxiu、Song, Hongjian、Wang, Qingmin
DOI:10.1021/acs.orglett.4c02279
日期:——
is important in organic chemistry, and selective cleavage and functionalization of these strained rings are of great interest. However, direct α-functionalization of cyclobutanols is rarely reported because of the high O–H bond dissociation energy and the occurrence of β-scission of C–C bonds in these alcohols. Recently, transition-metal catalysis has facilitated alkoxy radical generation. Herein, we
四元环结构在有机化学中很重要,这些应变环的选择性裂解和官能化引起了人们的极大兴趣。然而,由于这些醇中O-H键解离能高且C-C键发生β-断裂,环丁醇的直接α-官能化很少有报道。最近,过渡金属催化促进了烷氧基自由基的产生。在此,我们报告了一种通过可见光诱导的 M-烷氧基配合物 LMCT 反应对甲硅烷基环丁醇进行电化学 α 功能化的方法。将甲硅烷基引入环丁醇结构有利于快速[1,2]-甲硅烷基转移而不是开环,从而生成α-官能化产物。