Tetrahedron Letters

4-Organochalcogenoyl-1H-1, 2, 3-triazoles: synthesis and functionalization by a nickel-catalyzed Negishi cross-coupling reaction

HA Stefani, DM Leal, F Manarin

Index: Stefani, Helio A.; Leal, Daiana M.; Manarin, Flavia Tetrahedron Letters, 2012 , vol. 53, # 48 p. 6495 - 6499,5

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Citation Number: 10

Abstract

A general method for the synthesis of triazoles containing selenium and tellurium was accomplished via a CuCAAC reaction between organic azides and a terminal triple bond, generated by in situ deprotection of the silyl group. The reaction tolerates alkyl and arylazides, with alkyl and aryl substituents directly bonded to the chalcogen atom. The products were readily functionalized by a nickel-catalyzed Negishi cross-coupling reaction ...