Journal of Organic Chemistry p. 12697 - 12703 (2015)
Update date:2022-08-16
Topics:
Wang, Fu-Xiang
Tian, Shi-Kai
An unprecedented tandem radical sulfenylation/cyclization reaction of N-arylacrylamides with sulfonyl hydrazides has been developed in the presence of iodine for the selective synthesis of 3-(sulfenylmethyl)oxindoles and 3-sulfenyl-3,4-dihydroquinolin-2(1H)-ones. Preliminary mechanistic studies showed that sulfonyl hydrazides decomposed completely at an early stage to thiosulfonates and disulfides, both of which underwent tandem radical sulfenylation/cyclization with N-arylacrylamides at a late stage.
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