Ligand-dependent scope and divergent mechanistic behavior in nickel-catalyzed reductive couplings of aldehydes and alkynes

被引:208
作者
Mahandru, GM [1 ]
Liu, G [1 ]
Montgomery, J [1 ]
机构
[1] Wayne State Univ, Dept Chem, Detroit, MI 48202 USA
关键词
D O I
10.1021/ja049644n
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A new procedure for catalytic reductive coupling of aldehydes and alkynes has been developed. The procedure uses Ni(COD)2 with an imidazolium carbene ligand as the catalyst and triethylsilane as the reducing agent. A crossover deuterium-labeling experiment illustrated that variants involving trialkyl phosphines and imidazolium carbene ligands with a nickel catalyst proceed by different mechanisms. Copyright © 2004 American Chemical Society.
引用
收藏
页码:3698 / 3699
页数:2
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