Preparation of a series of "Ru(p-cymene)" complexes with different N-heterocyclic carbene ligands for the catalytic β-alkylation of secondary alcohols and dimerization of phenylacetylene

被引：133

作者：

Prades, Amparo ^{[1
]}

Viciano, Monica ^{[1
]}

Sanau, Mercedes ^{[2
]}

Peris, Eduardo ^{[1
]}

机构：

[1] Univ Jaume 1, Dept Quim Inorgan & Organ, E-12071 Castellon de La Plana, Spain

[2] Univ Valencia, Dept Quim Inorgan, E-46100 Burjassot, Spain

来源：

ORGANOMETALLICS | 2008年 / 27卷 / 16期

关键词：

D O I：

10.1021/om800377m

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A series of five different "(p-cymene)Ru(NHC)" complexes (NHC = imidazolin-2-ylidene, imidazolin-4-ylidene, and pyrazolin-3-ylidene) have been obtained and fully characterized. The crystal structure of two of the new complexes has been determined by X-ray diffraction methods. All five complexes have been tested in the catalytic beta-alkylation of secondary alcohols with primary alcohols and the dimerization of phenyl acetylene, showing an excellent activity in both processes. A clear improvement on the catalytic activity of the complexes is observed when the more basic NHC ligands are used. The pyrazolylidene-Ru complex lies among the best catalysts for the beta-alkylation of secondary alcohols reported to date.

引用

页码：4254 / 4259

页数：6

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