Metal-Free Oxidative Spirocyclization of Alkynes with Sulfonylhydrazides Leading to 3-Sulfonated Azaspiro [4, 5] trienones

J Wen, W Wei, S Xue, D Yang, Y Lou…

Index: Wei, Wei; Li, Jinli; Yang, Daoshan; Wen, Jiangwei; Jiao, Yueting; You, Jinmao; Wang, Hua Organic and Biomolecular Chemistry, 2014 , vol. 12, # 12 p. 1861 - 1864

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Citation Number: 19

Abstract

A novel and direct oxidative spirocyclization of arylpropiolamides with sulfonylhydrazides leading to 3-sulfonated azaspiro [4, 5] trienones has been developed under metal-free conditions. The reaction is performed in a tandem manner constituted by the sequential