申请人:LYONDELL CHEMICAL TECH LP
公开号:WO2010132087A1
公开(公告)日:2010-11-18
A process for the production of 4-hydroxybutyraldehyde is described. The process comprises reacting allyl alcohol with a mixture of carbon monoxide and hydrogen in the presence of a solvent and a catalyst comprising a rhodium complex and a diphosphine. The diphoshine is a trans-1,2-bis(bis(3,4-di-n-alkylphenyl)phosphinomethyl)cyclobutane and/or a 2,3-O-isopropylidene-2,3-dihydroxy-1,4-bis[bis(3,4-di-n-alkylphenyl)phosphino] butane. The process gives high yield of 4-hydroxybutyraldehyde compared to 3-hydroxy-2-methylpropionaldehyde.
本发明涉及一种生产4-羟基丁醛的方法。该方法包括在溶剂和催化剂的存在下,将丙烯醇与一种一氧化碳和氢气的混合物反应,所述催化剂包括一个铑配合物和一个二膦。所述二膦是一种trans-1,2-双[双(3,4-二-n-烷基苯基)膦甲基]环丁烷和/或2,3-O-异丙亚甲基-2,3-双羟基-1,4-双[双(3,4-二-n-烷基苯基)膦基]丁烷。与3-羟基-2-甲基丙醛相比,该方法可高产4-羟基丁醛。