Issue 40, 2013

Synthesis of 2-vinyl-2H-benzotriazoles via NIS-promoted regio/stereoselective addition of 1H-benzotriazole to alkynes

Abstract

A regio/stereoselective electrophilic addition of 1H-benzotriazole to aromatic alkynes induced by N-iodosuccinimide (NIS) has been achieved, providing unique access to 2-vinyl-2H-benzotriazole derivatives. It was demonstrated that the stereoselectivity is controlled by the nature of the substituents attached to the alkyne terminus. A mechanism involving cyclic iodonium and vinyl cation intermediates was proposed.

Graphical abstract: Synthesis of 2-vinyl-2H-benzotriazoles via NIS-promoted regio/stereoselective addition of 1H-benzotriazole to alkynes

Supplementary files

Article information

Article type
Paper
Submitted
19 Jun 2013
Accepted
05 Aug 2013
First published
07 Aug 2013

RSC Adv., 2013,3, 18446-18452

Synthesis of 2-vinyl-2H-benzotriazoles via NIS-promoted regio/stereoselective addition of 1H-benzotriazole to alkynes

Z. Zhang, L. Chang, S. Wang, H. Wang and Z. Yao, RSC Adv., 2013, 3, 18446 DOI: 10.1039/C3RA43075H

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