SYNTHESIS AND STRUCTURE OF A TUNGSTEN ETA-3-ENYNYL COMPLEX RESULTING FROM FACILE ALKYNYL VINYLIDENE COUPLING

被引：68

作者：

MCMULLEN, AK ^{[1
]}

SELEGUE, JP ^{[1
]}

WANG, JG ^{[1
]}

机构：

[1] UNIV KENTUCKY,DEPT CHEM,LEXINGTON,KY 40506

来源：

ORGANOMETALLICS | 1991年 / 10卷 / 10期

关键词：

D O I：

10.1021/om00056a005

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Deprotonation of the bis(alkyne) complex [W-(CO)(eta-2-HC = CCMe3)2(Cp*)][BF4] (1) with KH gives the alkynyl/alkyne complex [W(C = CCMe3)(CO)(eta-2-HC = CCMe3)(Cp*)] (2), methylation of which gives the cationic alkyne/vinylidene complex [W(C = CMeCMe3)(CO)(eta-2-HC = CCMe3)(Cp*)][BF4] (3). Deprotonation of 3 with sodium bis(trimethylsilyl)amide under CO gives the crystallographically characterized eta-3-enynyl complex [W-(CO)2(eta-3-Me3CC = CC = CMeCMe3)(Cp*)] (4) via the facile insertion of a vinylidene ligand into a metal-alkynyl sigma-bond.

引用

页码：3421 / 3423

页数：3

共 20 条

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