Dehydrogenative silylation of alcohols catalysed by half-sandwich iron N-heterocyclic carbene complexes

被引：38

作者：

Cardoso, Joao M. S. ^{[1
]}

Lopes, Rita ^{[1
]}

Royo, Beatriz ^{[1
]}

机构：

[1] Univ Nova Lisboa, Inst Tecnol Quim & Biol, EAN, P-2780157 Oeiras, Portugal

来源：

JOURNAL OF ORGANOMETALLIC CHEMISTRY | 2015年 / 775卷

关键词：

Iron; N-Heterocyclic carbene ligands; Coupling of silanes with alcohols; Silylethers; EFFICIENT HYDROSILYLATION; SELECTIVE HYDROSILYLATION; HYDRIDE COMPLEX; KETONES; SILANES; BEARING; REDUCTION; CHEMISTRY; ALDEHYDES; LIGANDS;

D O I：

10.1016/j.jorganchem.2014.06.005

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A new series of tetramethylcyclopentadienyl-functionalised N-heterocyclic carbene complexes of iron bearing different wingtips of general type (Cp*-NHCR)Fe(CO)I (R = Bu-n, Bu-i, Et, CH2CH2OMe, CH2Ph) were prepared by direct reaction of Fe-3(CO)(12) and the corresponding imidazolium proligands. These new iron-NHC complexes have been found to be efficient catalysts for the dehydrogenative silylation of alcohols with silanes. Iron metal complexes bearing iso-butyl and n-butyl wingtips displayed slightly better catalytic performances than the related complexes (Cp*-NHCR)Fe(CO)I (R = Et, CH2CH2OMe, CH2Ph), affording quantitative yields of the corresponding silylethers in 8 h at 70 degrees C in acetonitrile. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：173 / 177

页数：5

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