Unprecedented observation of sulfonamides in the transesterification of N-unsubstituted carbamates with sulfonyl chlorides
作者:Jérôme Dauvergne、Kevin Wellington、Kelly Chibale
DOI:10.1016/j.tetlet.2003.10.139
日期:2004.1
Sulfonamides have been identified as by-products in the base-mediated transesterification of N-unsubstituted carbamates with sulfonyl chlorides to give the corresponding sulfonates. A proposed mechanism and the synthesis of hindered 2,6-disubstituted arylsulfonates via this method are also reported. (C) 2003 Elsevier Ltd. All rights reserved.