Reactions of hydrido(hydrosilylene)tungsten complexes with α,β-unsaturated carbonyl compounds:: Selective formation of (η3-siloxyallyl)tungsten complexes

被引：31

作者：

Watanabe, Takahito ^{[1
]}

Hashimoto, Hisako ^{[1
]}

Tobita, Hiromi ^{[1
]}

机构：

[1] Tohoku Univ, Grad Sch Sci, Dept Chem, Aoba Ku, Sendai, Miyagi 9808578, Japan

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2007年 / 129卷 / 37期

关键词：

D O I：

10.1021/ja074629e

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Hydrido(hydrosilylene)tungsten complexes (C5Me4R1)(CO)(2)(H)W=Si(H)[C(SiMe3)(3)] [R-1 = Me (1a), R-1 = Et (1b)] reacted with (alpha,beta-Punsaturated carbonyl compounds (RC)-C-2(O)CH=CHR3 (R-2 = Me, R-3 = H or Ph; R-2 = OMe, R-3 = H) at room temperature to give exo-anti (3]-siloxyallyl)tungsten complexes (C5Me4R1)(CO)(2)W[(eta 3)-(RHCCHCROSiH2)-H-3-O-2{C(SiMe3)(3))] almost quantitatively and regioselectively. Possible reaction mechanisms involving a [2+4] cycloaddition process are proposed.

引用

页码：11338 / +

页数：3

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