Evidence for the hydride mechanism in the methoxycarbonylation of ethene catalysed by palladium-triphenylphosphine complexes

被引：37

作者：

Tooze, RP

Whiston, K

Malyan, AP

Taylor, MJ

Wilson, NW

机构：

[1] Ineos Acryl, Strateg Projects Grp, Middlesbrough TS90 8JE, Cleveland, England

[2] ICI Technol, Middlesbrough TS90 8JE, Cleveland, England

来源：

JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS | 2000年 / 19期

关键词：

D O I：

10.1039/b005232i

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Analysis of the phosphorus containing by-products from the catalytic methoxycarbonylation of ethene using a palladium triphenylphosphine complex with a combination of High Performance Liquid Chromatography (HPLC) and Mass Spectrometry (MS) indicated increasing levels of phosphonium salts through the course of the reaction, major ones being methyltriphenylphosphonium, ethyltriphenylphosphonium and 3-oxopentyltriphenylphosphonium (CH3CH2C(=O)CH2CH2PPh3) cations, isolated as the sulfonate salts. The latter are shown to be produced by metal mediated pathways and believed to be indicative of the operation of the hydride mechanism.

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页码：3441 / 3444

页数：4

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