Mesoionic Carbene-Boranes

被引:40
作者
de Oliveira Freitas, Luiza Baptista [1 ]
Eisenberger, Patrick [2 ]
Crudden, Cathleen M. [2 ,3 ]
机构
[1] Univ Fed Minas Gerais, Dept Quim, BR-31270901 Belo Horizonte, MG, Brazil
[2] Queens Univ, Dept Chem, Kingston, ON K7L 3N6, Canada
[3] Nagoya Univ, Inst Transformat Biomol WPI ITbM, Chikusa Ku, Nagoya, Aichi 4648601, Japan
基金
加拿大自然科学与工程研究理事会;
关键词
N-HETEROCYCLIC CARBENE; TRIETHYLBORANE ADDUCT; COMPLEXES; REACTIVITY; LIGANDS; BOND; HYDROGENATION; REDUCTIONS; CHEMISTRY; ATOM;
D O I
10.1021/om400743c
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Mesoionic carbenes (MICs), derived from alkylation and deprotonation of triazoles, are shown to form stable complexes with BH3. The synthesis of triazoles via Huigsen cycloadditions provides considerable structural diversity. Several routes to MIC-boranes are described, and their structures have been characterized by X-ray crystallography. As predicted on the basis of the increased sigma-donor capacity of MICs by comparison to NHCs, the MIC-borane adducts are more reactive reducing agents.
引用
收藏
页码:6635 / 6638
页数:4
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