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Suzuki-Miyaura reactions catalyzed by C?-symmetric Pd-multi-dentate N-heterocyclic carbene complexes.

ABSTRACT: Suzuki-Miyaura coupling reactions are promoted by Pd complexes ligated with C?-symmetric multi-dentate N-heterocyclic carbenes derived in situ from Pd(OAc)? and imidazolium salts. Good to excellent yields were obtained for aryl bromides as substrates. Turnover numbers of up to 10? could be achieved with 5 × 10?? mol% of Pd(OAc)?/1 × 10?³ mol% NHC precatalyst in 24 h.

SUBMITTER: Jiang L 

PROVIDER: S-EPMC6268461 | biostudies-literature | 2012 Oct

REPOSITORIES: biostudies-literature

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Suzuki-Miyaura reactions catalyzed by C₂-symmetric Pd-multi-dentate N-heterocyclic carbene complexes.

Jiang Lan L   Shan Fengjun F   Li Zhengning Z   Zhao Defeng D  

Molecules (Basel, Switzerland) 20121016 10

Suzuki-Miyaura coupling reactions are promoted by Pd complexes ligated with C₂-symmetric multi-dentate N-heterocyclic carbenes derived in situ from Pd(OAc)₂ and imidazolium salts. Good to excellent yields were obtained for aryl bromides as substrates. Turnover numbers of up to 10⁵ could be achieved with 5 × 10⁻⁴ mol% of Pd(OAc)₂/1 × 10⁻³ mol% NHC precatalyst in 24 h. ...[more]

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