Selective synthesis of indazoles and indoles via triazene–alkyne cyclization switched by different metals

Y Fang, C Wang, S Su, H Yu, Y Huang

Index: Fang, Yan; Wang, Chengming; Su, Shengqin; Yu, Haizhu; Huang, Yong Organic and Biomolecular Chemistry, 2014 , vol. 12, # 7 p. 1061 - 1071

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Citation Number: 18

Abstract

We described two orthogonal heterocycle syntheses, where an arene bearing both an alkyne and a triazene functionality underwent two distinct cyclization pathways mediated by different transition metals. Starting from the same substrates, a synthesis of 2H-indazole was accomplished by a Cu (ii) salt promoted o

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