以乙酰丙酮衍生的β-酮亚胺镍 ( )配合物在烷基铝作用下催化丙烯的二聚反应 ,并考察了铝镍比、烷基铝助剂的种类、不同取代胺配体等对催化性能的影响 .结果表明 ,该体系在一定条件下能高活性 (6 .0× 10 4～1.0× 10 5h- 1 )和较高选择性 (70 %～ 80 % )的催化丙烯二聚反应 ;二聚产物中以 4-甲基戊烯 (4 - MP)为主 ,含部分2 -甲基戊烯 (2 - MP)和己烯 (Hex) ,以及少量的 2 ,3-二甲基丁烯 (2 ,3- DMB) Acetylacetone derivatized β-ketimide nickel complex was used to catalyze the dimerization of propylene in the presence of alkyl aluminum. The effects of Al / Ni ratio, the type of aluminum alkyl additive and different substituted amine ligands The catalytic performance of the system was investigated.The results showed that the system could catalyze propylene dimerization under the conditions of high activity (6.0 × 10 4 ~1.0 × 10 5 h -1) and high selectivity (70% ~ 80%) The dimeric products were mainly 4 - methylpentene (4 - MP), containing 2 - methylpentene (2 - MP) and hexene (Hex) Ene (2,3-DMB)