An oligomerization process comprising: a) contacting an olefin, hydrogen and a catalyst system comprising a metal compound, a ligand comprising a diphosphino aminyl moiety, and a cocatalyst; and b) forming an olefin oligomer product, wherein the ligand comprising the diphosphino aminyl moiety is represented by the general structure:
wherein R1, R2, R3, and R4 may each independently be an alkyl group, a cycloalkyl group, a substituted cycloalkyl group, an aromatic group, or a substituted aromatic group and wherein the substituents on the substituted cycloalkyl group and/or substituted aromatic group comprise an alkyl group.
一种低聚工艺,包括:a) 将烯烃、
氢气和由
金属化合物、由
二膦氨基组成的
配体和助催化剂组成的催化剂体系接触;b) 形成烯烃低聚产物,其中由
二膦氨基组成的
配体由一般结构表示:
其中 R1、R2、R3 和 R4 可各自独立地为烷基、环烷基、取代环烷基、芳香基或取代芳香基,而取代环烷基和/或取代芳香基上的取代基包括烷基。