Copper(I) chloride catalysed room temperature Csp–Csp homocoupling of terminal alkynes mediated by visible light

Arunachalam Sagadevan; Vaibhav Pramod Charpe; Kuo Chu Hwang

doi:10.1039/C6CY01400C

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Copper(i) chloride catalysed room temperature C_sp–C_sp homocoupling of terminal alkynes mediated by visible light†

Arunachalam Sagadevan,^a Vaibhav Pramod Charpe^a and Kuo Chu Hwang*^a

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* Corresponding authors

^a Department of Chemistry, National Tsing Hua University, Hsinchu, Taiwan, Republic of China
E-mail: kchwang@mx.nthu.edu.tw

Abstract

We developed a technique mediated by visible light for the aerobic homocoupling of terminal alkynes to synthesize 1,3-conjugated diynes using a copper(I) chloride catalyst at room temperature. Compared with previously reported thermal processes, this photochemical method is simple, uses only mild reaction conditions, produces high yields and works well for substrates with electron-withdrawing groups without the need for bases/ligands, oxidants or palladium catalysts.

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Article information

DOI: https://doi.org/10.1039/C6CY01400C
Article type: Communication
Submitted: 03 Jul 2016
Accepted: 30 Aug 2016
First published: 30 Aug 2016

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Catal. Sci. Technol., 2016,6, 7688-7692

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Copper(I) chloride catalysed room temperature C_sp–C_sp homocoupling of terminal alkynes mediated by visible light

A. Sagadevan, V. P. Charpe and K. C. Hwang, Catal. Sci. Technol., 2016, 6, 7688 DOI: 10.1039/C6CY01400C

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