Catalytic hydroxycarbonylation of isobutylene with carbon monoxide and polyhydric alcohols in the presence of the Pd(acac)2-PPh3-TsOH system
作者:H. A. Suerbaev、E. G. Chepajkin、B. Zh. Dzhiembaev、I. O. Appazov、G. M. Abyzbekova
DOI:10.1134/s0965544107050064
日期:2007.9
The reaction of isobutylene hydroalcoxycarbonylation with CO and polyhydric alcohols (ethylene glycol, glycerol) in the presence of the catalytic system Pd(aacac)(2)-PPh3-TsOH has been investigated. It was found that carbonylation of isobutylene with CO in the presence of ethylene glycol yields a mixture of mono-and diglycol esters of isovaleric acid, irrespective of the initial reactant ratio. During the hydroalcoxycarbonylation of isobutylene with glycerol, either mono- and di- or mono-, di-, and triglycerides of isovaleric acid are formed depending on the reactant ratio.