A N-heterocyclic carbene Ni(II) complex bearing bis(cyclopentadienyl) ligands as a precatalyst for the dehydrogenative silylation of alcohols with hydrosilanes

被引：18
|
作者：
Ohta, Hidetoshi [1 ]
Miyoshi, Narumi [1 ]
Sakata, Yoshihiro [1 ]
Okamoto, Yuki [1 ]
Hayashi, Minoru [1 ]
Watanabe, Yutaka [1 ]
机构：
[1] Ehime Univ, Grad Sch Sci & Engn, Dept Mat Sci & Biotechnol, Matsuyama, Ehime 7908577, Japan
来源：
TETRAHEDRON LETTERS | 2015年 / 56卷 / 22期
关键词：
Nickel catalyst; N-Heterocyclic carbene; Dehydrogenative silylation; Alcohol; Hydrosilane; CROSS-COUPLING REACTIONS; C-F BOND; SILANE ALCOHOLYSIS; HOMOGENEOUS CATALYSIS; IRIDIUM(I) COMPLEXES; NICKEL-COMPLEXES; ETHERS; ACTIVATION; CLEAVAGE; SILICON;
D O I：
10.1016/j.tetlet.2015.04.069
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
An air- and moisture-stable N-heterocyclic carbene Ni(II) complex bearing bis(cyclopentadienyl) ligands was found to be an effective precatalyst for the dehydrogenative silylation of alcohols with hydrosilanes. Various aryl and alkyl alcohols were silylated in the presence of the Ni catalyst (1-4 mol %) in toluene at 110 degrees C, giving the corresponding silyl ethers in 59-99% isolated yields. Time-course studies revealed that the reaction has an induction period, during which the Ni(II) complex would be reduced to catalytically active Ni(0) species. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码：2910 / 2912
页数：3
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