(N-heterocyclic carbene)2-Pd(0) catalyzed silaboration of internal and terminal alkynes: scope and mechanistic studies

Ansell, Melvyn B, Spencer, John and Navarro Fernandez, Oscar (2016) (N-heterocyclic carbene)2-Pd(0) catalyzed silaboration of internal and terminal alkynes: scope and mechanistic studies. ACS Catalysis, 6 (4). pp. 2192-2196. ISSN 2155-5435

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Abstract

Pd(ITMe)2(PhC≡CPh) acts as a highly reactive precatalyst in the silaboration of terminal and internal alkynes to yield a number of known and novel 1-silyl-2-boryl alkenes. Unprecedented mild reaction temperatures for terminal alkynes, short reaction times, and low catalytic loadings are reported. During mechanistic studies, cis-Pd(ITMe)2(SiMe2Ph)(Bpin) was directly synthesized by oxidative addition of PhMe2SiBpin to Pd(ITMe)2(PhC≡CPh). This represents a very rare example of a (silyl)(boryl)palladium complex. A plausible catalyst decomposition route was also examined.

Item Type: Article
Schools and Departments: School of Life Sciences > Chemistry
Subjects: Q Science > QD Chemistry
Q Science > QD Chemistry > QD0146 Inorganic chemistry
Q Science > QD Chemistry > QD0241 Organic chemistry
Depositing User: John Spencer
Date Deposited: 26 Feb 2016 14:10
Last Modified: 02 Sep 2017 00:26
URI: http://sro.sussex.ac.uk/id/eprint/59765

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Project NameSussex Project NumberFunderFunder Ref
DTA - University of Sussex 2013 (EPSRC)G1142EPSRC-ENGINEERING & PHYSICAL SCIENCES RESEARCH COUNCILEP/L505109/1