The synthesis and reaction of N-sulfenyl heterocycles: development of effective sulfenylating reagents
摘要:
Various N-sulfenyl heterocycles were synthesized by transamination of sulfenamides using a chlorine gas-free method. The N-sulfenyl heterocycles behaved as sulfenylating reagents of anilines; N-sulfenylbenzimidazoles were the most effective. (c) 2005 Elsevier Ltd. All rights reserved.
N-Substituted sulfenamoylbenzoates were synthesized by transamination of N-unsubstituted sulfenamoylbenzoates with amines. The reaction did not always proceed by simple amine exchange between the amines and ammonia on thesulfur atom of the sulfenamides. In reactions with aliphatic amines, the sulfenamides cyclized to form N-substituted1,2-benzisothiazolin-3-ones. The synthesis of 1,2-benzisothiazolin-3-ones