(η3-α-Silabenzyl)tungsten Complexes: An Isolable Intermediate for Interconversion between a Silylene Complex and a Silyl Complex through 1,2-Aryl Migration

被引：8

作者：

Suzuki, Eiji ^{[1
]}

Komuro, Takashi ^{[1
]}

Kanno, Yuto ^{[1
]}

Tobita, Hiromi ^{[1
]}

机构：

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

来源：

ORGANOMETALLICS | 2013年 / 32卷 / 03期

关键词：

H BOND ACTIVATION; REDUCTIVE ELIMINATION; TUNGSTEN COMPLEXES; OXIDATIVE ADDITION; METAL-COMPLEXES; METHYL-GROUP; SI BOND; REACTIVITY; 1,2-MIGRATION; BASE;

D O I：

10.1021/om4000105

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

eta(3)-alpha-Silabenzyl complexes Cp*W - (CO)(2){eta(3)(Si,C,C)-Si(p-Tol)(2)R} (1a, R = Me; 1b, R = p-Tol; Cp* = eta(5)-C5Me5, p-Tol = p-tolyl), the first silicon analogues of eta(3)-benzyl complexes, were synthesized by abstraction of DMAP (4-(dimethylamino)pyridine) with BPh3 either from (aryl)(DMAP.silylene)tungsten complexes 2a,b at room temperature or from (arylsilyl)(DMAP)tungsten complexes 3a,b under irradiation. Complex I was demonstrated to be a key intermediate for the interconversion between 2 and 3 and to serve as a synthetic equivalent for both base-free silylene complexes and coordinatively unsaturated silyl complexes.

引用

页码：748 / 751

页数：4

共 14 条

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