申请人:KURARAY CO., LTD.
公开号:EP0088955A2
公开(公告)日:1983-09-21
A process for producing 1,9-nonanedial which comprises hydroformylating 7-octen-1-al with a mixture of hydrogen and carbon monoxide in an aqueous sulfolane or 1,4-butanediol solution in the presence of a rhodium complex and sodium, potassium or lithium salt of m-(diphenylphosphino)bezenesulfonic acid, extracting 1,9- nonanedial from the reaction mixture with a primary alcohol or a mixture of a primary alcohol and a saturated aliphatic hydrocarbon, and recycling the extraction residue containing the catalyst components to the 7-octen-1-al hydroformylation step.
一种生产 1,9-壬二醛的工艺,包括在铑络合物和间二苯基膦苯磺酸钠盐、钾盐或锂盐的存在下,用氢气和一氧化碳的混合物在亚砜水溶液或 1,4-丁二醇水溶液中对 7-辛烯-1-醛进行加氢甲酰化反应,用伯醇或伯醇与饱和脂肪烃的混合物从反应混合物中萃取 1,9-壬二醛,并将含有催化剂组分的萃取残渣回收至 7-辛烯-1-醛加氢甲酰化步骤。