(N-Heterocyclic Carbene)2-Pd(0)-Catalyzed Silaboration of Internal and Terminal Alkynes: Scope and Mechanistic Studies

被引：28

作者：

Ansell, Melvyn B. ^{[1
]}

Spencer, John ^{[1
]}

Navarro, Oscar ^{[1
]}

机构：

[1] Univ Sussex, Dept Chem, Brighton BN1 9QJ, E Sussex, England

来源：

ACS CATALYSIS | 2016年 / 6卷 / 04期

基金：

英国工程与自然科学研究理事会;

关键词：

N-heterocyclic carbene; silaboration; homogeneous catalysis; alkyne; palladium; synthetic methods; PALLADIUM-CATALYZED SILABORATION; STEREOSELECTIVE-SYNTHESIS; MULTISUBSTITUTED OLEFINS; PLATINUM COMPLEXES; CIS-SILABORATION; BIS-SILYLATION; METATHESIS; ALKENES; BOND; REGIOSELECTIVITY;

D O I：

10.1021/acscatal.6b00127

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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 PhMe(2)SiBpin 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.

引用

页码：2192 / 2196

页数：5

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