申请人:IDEMITSU PETROCHEMICAL CO. LTD.
公开号:EP0457197A1
公开(公告)日:1991-11-21
The present invention discloses a process for efficiently preparing an unsaturated dicarboxylic acid diester, which comprises reacting a conjugated diene, carbon monoxide, an alcohol and oxygen in the presence of a catalyst comprising
(a) a platinum metal, a salt thereof or a complex compound of a platinum metal,
(b) at least one salt of metal selected from copper, iron and manganese and
(c) at least one compound selected from (1) an alkali metal compound or an alkaline earth metal compound, (2) a rare earth metal compound, (3) a metal compound of the groups IIIA, IVA, IVB, VA, VB or VIA, and (4) a metal carbonyl complex.
According to the present invention, an unsaturated dicarboxylic acid diester useful as an intermediate material in chemical industry can be efficiently prepared with use of no dehydrating agent.
本发明公开了一种高效制备不饱和二羧酸二酯的工艺,该工艺包括在催化剂存在下使共轭二烯、一氧化碳、醇和氧反应,催化剂包括
(a) 铂金属、其盐或铂金属的络合物、
(b) 至少一种选自铜、铁和锰的金属盐,以及
(c) 至少一种化合物,选自 (1) 碱金属化合物或碱土金属化合物,(2) 稀土金属化合物,(3) IIIA、IVA、IVB、VA、VB 或 VIA 族金属化合物,和 (4) 金属羰基络合物。
根据本发明,无需使用脱水剂,即可高效制备用作化学工业中间材料的不饱和二羧酸二酯。