Radical Reactions of N-Heterocyclic Carbene Boranes with Organic Nitriles: Cyanation of NHC-Boranes and Reductive Decyanation of Malononitriles

被引:107
作者
Kawamoto, Takuji [1 ]
Geib, Steven J. [1 ]
Curran, Dennis P. [1 ]
机构
[1] Univ Pittsburgh, Dept Chem, Pittsburgh, PA 15260 USA
基金
美国国家科学基金会;
关键词
SUBSTITUTION-REACTIONS; INITIATORS; COMPLEXES; HALIDES; GENERATION; RESONANCE; CYANO;
D O I
10.1021/jacs.5b04677
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The observation that NHC-boryl radicals abstract cyano groups from various organic nitriles has been parlayed into two complementary transformations. In the main group chemistry aspect, reactions of various NHC-boranes with simple organic dinitriles selectively provide stable NHC-boryl mono- or dinitriles, depending on the nitrile source. In the organic synthesis aspect, reaction of malononitriles and related derivatives with readily available 1,3-dimethylimidazol-2-ylidene borane provides reductively decyanated products in good yields.
引用
收藏
页码:8617 / 8622
页数:6
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