Cyclotrimerization of terminal alkynes catalyzed by the system of NiCl2/Zn and (benzimidazolyl)-6-(1-(arylimino)ethyl)pyridines

Chanjuan Xi; Zelin Sun; Yongbing Liu

doi:10.1039/C3DT51674A

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Cyclotrimerization of terminal alkynes catalyzed by the system of NiCl₂/Zn and (benzimidazolyl)-6-(1-(arylimino)ethyl)pyridines†

Chanjuan Xi,*^ab Zelin Sun^a and Yongbing Liu^a

Author affiliations

* Corresponding authors

^a Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, China
E-mail: cjxi@tsinghua.edu.cn

^b State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China

Abstract

An effective regioselective cyclotrimerization of terminal alkynes is achieved by the direct utilization of NiCl₂·6H₂O, Zn, and 2-(benzimidazolyl)-6-(1-(arylimino)ethyl)pyridine in one step under ambient temperature.

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Article information

DOI: https://doi.org/10.1039/C3DT51674A
Article type: Communication
Submitted: 24 Jun 2013
Accepted: 26 Jul 2013
First published: 31 Jul 2013

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Dalton Trans., 2013,42, 13327-13330

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Cyclotrimerization of terminal alkynes catalyzed by the system of NiCl₂/Zn and (benzimidazolyl)-6-(1-(arylimino)ethyl)pyridines

C. Xi, Z. Sun and Y. Liu, Dalton Trans., 2013, 42, 13327 DOI: 10.1039/C3DT51674A

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Dalton Transactions