Preparation of Stable Low-Oxidation-State Group 14 Element Amidohydrides and Hydride-Mediated Ring-Expansion Chemistry of N-Heterocyclic Carbenes

被引：126

作者：

Al-Rafia, S. M. Ibrahim ^{[1
]}

McDonald, Robert ^{[1
]}

Ferguson, Michael J. ^{[1
]}

Rivard, Eric ^{[1
]}

机构：

[1] Univ Alberta, Dept Chem, Edmonton, AB T6G 2G2, Canada

来源：

CHEMISTRY-A EUROPEAN JOURNAL | 2012年 / 18卷 / 43期

基金：

加拿大自然科学与工程研究理事会;

关键词：

amides; carbenes; hydrides; main-group elements; ring expansion; CRYSTAL-STRUCTURE; BORANE ADDUCTS; ACTIVATION; DIHYDROGEN; REACTIVITY; COMPLEXES; COMPOUND; SILYLENE; CHLORIDE; CLUSTER;

D O I：

10.1002/chem.201202195

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Various low oxidation state (+2) group 14 element amidohydride adducts, IPr center dot EH(BH3)NHDipp (E=Si or Ge; IPr=[(HCNDipp)2C:], Dipp=2,6-iPr2C6H3), were synthesized. Thermolysis of the reported adducts was investigated as a potential route to Si- and Ge-based clusters; however, unexpected transmetallation chemistry occurred to yield the carbeneborane adduct, IPr center dot BH2NHDipp. When a solution of IPr center dot BH2NHDipp in toluene was heated to 100 degrees C, a rare C-N bond-activation/ring-expansion reaction involving the bound N-heterocyclic carbene donor (IPr) transpired.

引用

页码：13810 / 13820

页数：11