Singh M, Singh AS, Mishra N, Agrahari AK, Tiwari VK. Benzotriazole as an Efficient Ligand in Cu-Catalyzed Glaser Reaction.
ACS OMEGA 2019;
4:2418-2424. [PMID:
31459480 PMCID:
PMC6648008 DOI:
10.1021/acsomega.8b03410]
[Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Accepted: 01/22/2019] [Indexed: 06/10/2023]
Abstract
Benzotriazole has been established as an efficient ligand in Cu-catalyzed cross-coupling of terminal alkynes to form 1,3-dialkynes using CuI as the catalyst and K2CO3 as the base at room temperature in an open round-bottom flask. The established protocol has the following notable advantages: simple to handle, easy work-up, mild reaction condition, high substrate scope, requirement of less quantity of ligand and also Cu-catalyst, less expensive, and high reaction yield.
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