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化学学报
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化学学报 ›› 2000, Vol. 58 ›› Issue (6): 666-669. 上一篇    下一篇

研究论文

Kaminsky型催化剂催化乙烯环齐聚反应的研究

王梅;李锐;钱明星;沈玉梅;王辉;何仁   

  1. 大连理工大学碳资源综合利用开放实验室
  • 发布日期:2000-06-15

Novel oligomerization and simultaneous cyclization of ethylene catalyzed by kaminsky-type catalysts

Wang Mei;Li Rui;Qian Mingxing;Shen Yumei;Wang Hui;He Ren   

  • Published:2000-06-15

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442

被引次数

8 | 2

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，而且生成环状剂聚物－－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%。

关键词: 乙烯, 齐聚, 环化, 锆络合物, 金属茂络合物

The oligomerization of ethylene catalyzed by Cp~2ZrL~2(L=Cl, Me, OC~6H~4-p-Me)/EAO (ethylaluminoxane) afforded not only common chain oligomers but also methylenecyclopentane. It is the first example of oligomerization and simultaneous cyclization of ethylene to a cyclic oligomer. The selectivity of methylenecyclopentane, affected by the structure and the concentration of precatalysts, solvents, aging and reaction temperature and some other factors, came up to 37% when a third-component C~5H~5N was added to the Cp~2ZrCl~2/EAO system under optimal conditions.

Key words: ETHYLENE, OLIGOMERIZATION, CYCLIZATION, ZIRCONIUM COMPLEX, METALLOCENES

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