期刊
ORGANOMETALLICS
卷 31, 期 22, 页码 7969-7975出版社
AMER CHEMICAL SOC
DOI: 10.1021/om3006195
关键词
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资金
- Royal Society
- EaSt-CHEM School of Chemistry
The first examples of heteroleptic bis-N-heterocyclic carbene (NHC) copper(I) complexes and a mixed NHC-phosphine Cu complex are reported. These complexes are easily synthesized from the reaction of [Cu(OH)(NHC)] with various imidazol(idin)ium or phosphonium tetrafluoroborate salts. These cationic heteroleptic bis-NHC Cu complexes are highly active systems for the azide-alkyne cycloaddition leading to the formation of 1,2,3-triazoles. The mechanism of this transformation was investigated, and information gathered suggests that only one NHC remains coordinated to the metal center during catalysis.
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