期刊
ACS CATALYSIS
卷 12, 期 14, 页码 8325-8330出版社
AMER CHEMICAL SOC
DOI: 10.1021/acscatal.2c01701
关键词
gold catalysis; cooperative catalysis; heterobimetallic complex; nucleophilic addition; DFT calculation
In this study, a gold(I) complex with an imidazo[1,5-a]pyridin-3-ylidene ligand bearing a 2,2'-bipyridine moiety at the C5 position was used as a template for constructing heterobimetallic cooperative catalysts. The in situ generated gold-zinc bimetallic systems facilitated intermolecular nucleophilic anti-addition reactions between nonactivated internal alkynes and O-nucleophiles such as carboxylic acids and phenols. DFT calculations supported the proposed cooperative action of the cationic gold atom and the zinc salt site for activating the alkyne and the carboxylic acid, respectively.
A gold(I) complex bearing an imidazo[1,5-a]pyridin-3-ylidene ligand with a 2,2'-bipyridine moiety at the C5 position was prepared as a template for constructing heterobimetallic cooperative catalysts. In situ generated gold-zinc bimetallic systems enabled intermolecular nucleophilic anti-addition of O-nucleophiles such as carboxylic acids and phenols toward nonactivated internal alkynes. DFT calculations supported the proposed cooperative action of the cationic gold atom and the zinc salt site for activating the alkyne and the carboxylic acid, respectively.
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