Author:
Dai Bin,Liu Ping,He Jing,Wei Yueting,Li Xuezhen
Abstract
AbstractA TBAI-mediated sulfenylation of N,3-diaryl-1-arylsulfonyl-1H-pyrazol-5-amines with arylsulfonyl hydrazides has been established, and an expanded inventory of N,5-diaryl-4-(arylthio)-1H-pyrazol-3-amines was constructed through C–S bond formation and N–S bond breaking. Mechanistic investigations suggest thiosulfonate as a key intermediate in the sulfenylation, and the detosylation is promoted by the generated arylsulfinic acid. The method is characterized by simple operating conditions, broad substrate range as well as gram-scale reaction.
Funder
National Natural Science Foundation of China
Subject
Organic Chemistry,Catalysis
Cited by
9 articles.
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