申请人:KURARAY CO., LTD.
公开号:EP0627399A1
公开(公告)日:1994-12-07
A process for producing 2-formyl-1,4-butanediol comprises effecting reaction of 2-butene-1,4-diol with hydrogen and carbon monoxide in the presence of:
(a) a rhodium compound,
(b) a tris(substituted aryl) phosphite having an electronic parameter, ν-value, of 2,080 to 2,090 cm⁻¹ and a steric parameter, ϑ-value, of 135 to 190° and being represented by the formula P(OR)₃
wherein each of R's, which may be the same or different, represents a substituted aryl group having at least 7 carbon atoms, and
(c) a bis(diphenylphosphino)alkane represented by the formula Ph₂P-(CH₂)n-PPh₂ wherein n is an integer of 2 to 6, and
at a temperature of not more than 80°C.
一种生产 2-甲酰基-1,4-丁二醇的工艺包括使 2-丁烯-1,4-二醇与氢气和一氧化碳在以下物质存在的情况下发生反应:
(a) 铑化合物
(b) 三(取代芳基)亚磷酸酯,其电子参数ν值为2,080-2,090 cm-¹,立体参数ϑ值为135-190°,由式P(OR)₃表示
其中每个 R(可以相同或不同)代表至少具有 7 个碳原子的取代芳基,以及
(c) 式 Ph₂P-(CH₂)n-Ph₂代表的双(二苯基膦)烷烃,其中 n 为 2 至 6 的整数,以及
温度不超过 80°C。