CCl<sub>4</sub>-TMEDA-CuCl—A Novel Convenient Catalytic System for Dimerization of Terminal Acetylenes in Mild Conditions

CCl<sub>4</sub>-TMEDA-CuCl—A Novel Convenient Catalytic System for Dimerization of Terminal Acetylenes in Mild Conditions

A novel catalytic system for homocoupling terminal acetylenes was elaborated based on CuCl as a catalyst (10 mol%), TMEDA as a base and CCl<sub>4</sub> as an oxidant. The influence of the solvent, base, amount of catalyst and CCl<sub>4</sub> on the reaction was investigated....

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Bibliographic Details
Main Authors: Vasiliy M. Muzalevskiy, Alexey V. Shastin, Sarvinoz I. Tirkasheva, Odiljon E. Ziyadullaev, Askar B. Parmanov, Valentine G. Nenajdenko
Format: Article
Language:English
Published: MDPI AG 2023-09-01
Series:Catalysts
Subjects:
tetrachloromethane
acetylene
oxidative homocoupling
diyne
copper
Online Access:https://www.mdpi.com/2073-4344/13/10/1330
Description
Summary:A novel catalytic system for homocoupling terminal acetylenes was elaborated based on CuCl as a catalyst (10 mol%), TMEDA as a base and CCl<sub>4</sub> as an oxidant. The influence of the solvent, base, amount of catalyst and CCl<sub>4</sub> on the reaction was investigated. Methanol was found to be the solvent of choice. The broad synthetic scope of the reaction was demonstrated. Diynes with various substituents were prepared in up to 92% yields. The possible reaction mechanism is discussed.
ISSN:2073-4344

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