研究发现Cp_2ZrL_2(L=Cl,Me,OC_6H_4-p-Me)/EAO(乙基铝氧烷)可同步催化乙烯齐聚-环化反应,不仅给出链状烯烃,而且生成环状齐聚物——亚甲基环戊烷.环状齐聚物的选择性取决于主催化剂的结构和浓度,反应介质,预反应温度和反应温度,反应时间,Al/Zr比及烷基铝水解程度等因素,加入碱性第三组分对催化活性和选择性亦有一定影响.在优化反应条件下,亚甲基环戊烷的选择性达到37%. It has been found that Cp_2ZrL_2 (L = Cl, Me, OC_6H_4-p-Me) / EAO (ethylaluminoxane) can simultaneously catalyze the ethylene oligomerization-cyclization reaction to give not only chain olefin but also cyclic oligomer - methylenecyclopentane The selectivity of the cyclic oligomer depends on the structure and concentration of the procatalyst, the reaction medium, the pre-reaction temperature and the reaction temperature, the reaction time, the Al / Zr ratio and the degree of hydrolysis of the aluminum alkyl Factors, adding the third component of the catalytic activity and selectivity also have some influence.Under the optimal reaction conditions, the selectivity of methylenecyclopentane reached 37%.