作者:Dayong Sang、Bingqian Dong、Kangkang Yu、Juan Tian
DOI:10.1021/acs.joc.3c02288
日期:2024.2.16
Transacylation of N-acylsulfonamides, which replaces the N-acyl group with a new one, is a challenging and underdeveloped fundamental transformation. Herein, a general method for transacylation of N-acylsulfonamides is presented. The transformation is enabled by coincident catalytic reactivities of FeCl3 for nonhydrolytic deacylation of N-acylsulfonamides and subsequent acylation of the resultant sulfonamides
N-酰基磺酰胺的酰基转移,即用一个新的 N-酰基取代N-酰基,是一种具有挑战性且尚未发展的根本性转变。本文提出了N-酰基磺酰胺转酰基的一般方法。该转化是通过FeCl 3对N-酰基磺酰胺的非水解脱酰化和随后所得磺酰胺的酰化的同时催化反应性实现的,并且可以逐步或以一锅方式进行。 GaCl 3和RuCl 3 · xH 2 O对该反应同样有效。该方法温和、高效、操作简单。各种官能团(例如卤素、酮、硝基、氰基、醚和酯)具有良好的耐受性,从而提供良好至优异的收率的转酰化产物。