Polymer-bound alkyl diarylphosphinite catalyst compositions and processes for making same and using same for selective conversion of acrylonitrile into 1,4-dicyano-1-butene
申请人:ALLIED CORPORATION
公开号:EP0110089A2
公开(公告)日:1984-06-13
Polymer-bound alkyl diarylphosphinite catalyst compositions having the formula I:
wherein the trivalent phosphorus is substituted by one alkoxy group and one aryl group and wherein the third bond of phosphorus is a P-C bond to a pendant aryl group of the polymer matrix and wherein Ⓟ-C6H4- is a polymer matrix containing aromatic groups such as polystyrene cross-linked with divinylbenzene and wherein at least 1 % of pendant aryl groups of the polymer matrix are bound to phosphorus and wherein Ar' is substituted by electron-donating groups such as alkyl, alkoxy, and N,N-dialkylamino, are disclosed. Polymer-bound aryl dialkyl phosphonites having the formula II, Ⓟ-C6H4-P(OR)2 and polymer-bound diarylphosphinous chlorides having the formula Ⓟ-C6H4-P-(Ar')-Cl are also disclosed. Processes for making the polymer-bound phosphinites, phosphonites and phosphinous chlorides are also disclosed.
A process for selective conversion of acrylonitrile into 1,4-dicyano-1-butene by contacting a liquid phase comprising acrylonitrile with an effective amount of a polymer-bound alkyl diarylphosphinite catalyst having the formula I is also disclosed. Treatment of the liquid phase, prior to contacting same with the polymer-bound catalyst, with a drying agent comprising a polymer-bound dialkyl arylphosphonite and regeneration of the drying agent are also disclosed.
具有式 I 的聚合物结合烷基二芳基膦催化剂组合物:
其中,三价磷被一个烷氧基和一个芳基取代,磷的第三个键是与聚合物基体的悬垂芳基的 P-C 键,Ⓟ-C6H4- 是含有芳香族基团(如与二乙烯基苯交联的聚苯乙烯)的聚合物基体,聚合物基体的悬垂芳基中至少有 1% 与磷结合,Ar'被电子供体基团(如烷基、烷氧基和 N,N-二烷基氨基)取代、烷氧基和 N,N-二烷基氨基取代。此外,还公开了具有式 II、Ⓟ-C6H4-P(OR)2 的聚合物结合芳基二烷基膦酸盐和具有式 Ⓟ-C6H4-P-(Ar')-Cl 的聚合物结合二芳基膦氯化物。还公开了制造聚合物结合型亚膦酸酯、亚膦酸酯和亚膦酰氯的工艺。
此外,还公开了一种将丙烯腈选择性转化为 1,4-二氰基-1-丁烯的工艺,其方法是将包含丙烯腈的液相与有效量的聚合物结合型烷基二芳基膦催化剂(具有式 I)接触。本发明还公开了在液相与聚合物结合催化剂接触之前,用由聚合物结合二烷基芳基膦酸盐组成的干燥剂对液相进行处理以及干燥剂的再生。