申请人:SHELL INTERNATIONALE RESEARCH
MAATSCHAPPIJ B.V.
公开号:EP0114703A1
公开(公告)日:1984-08-01
A process for the preparation of carboxylic acids and/or esters by reaction of an alcohol with carbon monoxide in the presence of a rhodium compound, an iodide and/or bromide source and a phosphorus, arsenic or antimony-containing compound as promoter, characterized in that the reaction is carried out in the presence of a compound of the formula
wherein X represent phosphorus, arsenic or antimony and Y oxygen, sulphur or selenium, and either a and b, independent of one another, are 0 or 1, R' represent hydrogen or an unsubstitued or substituted hydrocarbon group and R2 and R3 each represent an unsubstituted or substituted hydrocarbon group, or a and b are 0 and R2 and R3 together with X form a heterocyclic group and R1 represents hydrogen or an unsubstituted or substituted hydrocarbon group, or in the presence of a complex of a compound of formula I with a hydrocarbon iodide or bromide, an acyl iodide or bromide or hydrogen iodide or bromide.
一种在铑化合物、碘和/或溴源以及作为促进剂的含磷、砷或锑化合物存在下,通过醇与一氧化碳反应制备羧酸和/或酯的工艺,其特征在于该反应是在式化合物存在下进行的
其中 X 代表磷、砷或锑,Y 代表氧、硫或硒,a 和 b 互不相关,均为 0 或 1,R' 代表氢或未取代或取代的烃基,R2 和 R3 分别代表未取代或取代的烃基、或 a 和 b 均为 0,R2 和 R3 与 X 共同形成杂环基团,R1 代表氢或未取代或取代的烃基,或在式 I 化合物与烃碘化物或溴化物、酰基碘化物或溴化物或氢碘化物或溴化物的络合物存在下。