本文报道了Cp_2TiCl_2/i-C_3H_7MgBr体系用于1,5-己二烯催化异构化的主要研究结果:(1)从1,5-己二烯可以同时生成环化产物(甲叉环戊烷和甲基环戊烯)和直链产物(1,4-己二烯,2,4-己二烯和1,3-己二烯)。甲叉环戊烧和1,4-己二烯是中间产物,甲基环戊烯和2,4-己二烯是异构化终点产物。(2)研究了反应温度、溶剂、催化剂用量和Ti/Mg比例等反应条件对反应的影响。选择适当的条件可以使甲基环戊烯的产率高达90%。 In this paper, the main results of the research on the catalytic isomerization of 1,5-hexadiene with Cp_2TiCl_2 / i-C_3H_7MgBr have been reported: (1) The cyclization product of cyclohexane from 1,5-hexadiene And methylcyclopentene) and linear products (1,4-hexadiene, 2,4-hexadiene and 1,3-hexadiene). Methylcyclopentane and 1,4-hexadiene are intermediates, and methylcyclopentene and 2,4-hexadiene are isomerization end products. (2) The effects of reaction conditions such as reaction temperature, solvent, catalyst dosage and Ti / Mg ratio on the reaction were studied. Choose the appropriate conditions can make methyl cyclopentene yield of up to 90%.