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

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posted on 2023-06-09, 00:23 authored by Melvyn B Ansell, John SpencerJohn Spencer, Oscar Navarro Fernandez
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.

Funding

DTA - University of Sussex 2013 (EPSRC); G1142; EPSRC-ENGINEERING & PHYSICAL SCIENCES RESEARCH COUNCIL; EP/L505109/1

History

Publication status

  • Published

File Version

  • Published version

Journal

ACS Catalysis

ISSN

2155-5435

Publisher

American Chemical Society

Issue

4

Volume

6

Page range

2192-2196

Department affiliated with

  • Chemistry Publications

Full text available

  • Yes

Peer reviewed?

  • Yes

Legacy Posted Date

2016-02-26

First Open Access (FOA) Date

2016-04-01

First Compliant Deposit (FCD) Date

2016-02-26

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