Weihao Rao, Bing‐Feng Shi
May 20, 2015
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Organic letters
Abstract
A copper-catalyzed direct sulfonylation of C(sp(2))-H bonds with sodium sulfinates using a removable directing group is described. This reaction tolerates a wide range of functional groups, providing an efficient protocol for the synthesis of diverse aryl sulfones. Moreover, a series of 2,6-disubstituted benzamides could be synthesized via sequential C-H functionalization.