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: Tnay, Ya Lin; Chen, Cheng; Chua, Yi Yuan; Zhang, Line; Chiba, Shunsuke Organic Letters, 2012 , vol. 14, # 13 p. 3550 - 3553

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Citation Number: 18

Abstract

... Volume: Page: ... active compounds, drug molecules, and versatile synthetic intermediates.(12) As a result, the development of novel and efficient synthetic methods for the introduction of the sulfone groups into organic frameworks has ... 14, I 2 O 5, Na 2 S 2 O 8, 52. ...