Modelling fundamental arene-borane contacts: spontaneous formation of a dibromoborenium cation driven by interaction between a borane Lewis acid and an arene π system

被引：52

作者：

Mansaray, Hassanatu B. ^{[1
]}

Rowe, Alexander D. L. ^{[1
]}

Phillips, Nicholas ^{[1
]}

Niemeyer, Jochen ^{[1
]}

Kelly, Michael ^{[1
]}

Addy, David A. ^{[1
]}

Bates, Joshua I. ^{[1
]}

Aldridge, Simon ^{[1
]}

机构：

[1] Univ Oxford, Dept Chem, Inorgan Chem Lab, Oxford, England

来源：

CHEMICAL COMMUNICATIONS | 2011年 / 47卷 / 45期

基金：

加拿大自然科学与工程研究理事会;

关键词：

AROMATIC-HYDROCARBONS; BORENIUM; COMPLEXES; BORONIUM; PYRIDINE; DERIVATIVES; ACTIVATION; REACTIVITY; BORINIUM; ADDUCTS;

D O I：

10.1039/c1cc15259a

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Reaction of 2,6-dimesityl pyridine (L-py) with BBr3 leads to the spontaneous formation of the trigonal dibromoborenium cation [L-py center dot BBr2](+) via bromide ejection. Systematic structural and computational studies, and the reactivity displayed by a closely related N-heterocyclic carbene (NHC) donor, reveal the role played by arene-borane interactions in this chemistry. [L-py center dot BBr2](+) features a structurally characterized (albeit weak) electrostatic interaction between the borane Lewis acid and flanking arene pi systems.

引用

页码：12295 / 12297

页数：3