Unprecedented B-H Activation Through Pd-Catalysed B-Cvinyl Bond Coupling on Borane Systems

被引：24

作者：

Farras, Pau ^{[1
]}

Olid-Britos, David ^{[1
]}

Vinas, Clara ^{[1
]}

Teixidor, Francesc ^{[1
]}

机构：

[1] Inst Ciencia Mat Barcelona ICMAB CSIC, Bellaterra 08193, Spain

来源：

EUROPEAN JOURNAL OF INORGANIC CHEMISTRY | 2011年 / 16期

关键词：

Cobalt; Palladium; Heck reaction; Cross-coupling; B-C coupling; CARBORANE DERIVATIVES; SUBSTITUTION-REACTIONS; PALLADIUM; IODINATION; BORON; CHEMISTRY; ARYLATION; CRYSTAL; ALKYNES; COBALT;

D O I：

10.1002/ejic.201100177

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A Pd-induced cascade B-C-vinyl coupling that produces multiple B-C-vinyl bonds starting from a single B-I bond has been demonstrated. The process is most probably stimulated by the geometrical disposition of the B-H bonds confronting the B-Pd sites, along with the hydride character of the B-H units. Two and one B-C-vinyl couplings on the metallacarborane substrate have been generally obtained, but formation up to six B-C-vinyl bonds has been observed. A theoretical reaction mechanism involving an unprecedented B-H activation is proposed to interpret the multisubstitution process.

引用

页码：2525 / 2532

页数：8

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