Heterocyclic pentafluorophenyl sulfonate esters as shelf stable alternatives to sulfonyl chlorides

Heterocyclic pentafluorophenyl sulfonate esters are shelf stable alternatives to the often less stable sulfonyl chlorides. They are easily prepared from thiols and react readily with primary and secondary amines to produce sulfonamides in high yields. (c) 2009 Elsevier Ltd. All rights reserved.