The catalytic synthesis of 7, 7-dichlorodicyclo[4.1.0]heptane(DCDCH)with phase transfer catalyst(PTC) ,quaternary ammonium salt A-1, was reported. The effects of different factors, such as PTC amount, PTC activity, reac-tion temperature and reaction time, on the yield of DCDCH were investigated. Under the optimal reaction conditions inwhich the reaction underwent for 5 h at 50 ℃ with A-1 as PTC, the yield of DCDCH was 94.0%. The experiment re-sults show that the catalytic activity of A-1 was better than that of some other short-chain alkyl quaternary ammonium saltsand polyethylene glycol, and A-1 was not emulsive in separation and purification, which makes the separation and purifi-cation easier and raises the preduct yield%研究了季铵盐A-1催化二氯卡宾与环己烯的加成反应，考察了不同相转移催化剂的催化活性、反应温度、催化剂用量、反应时间对产物7,7-二氯双环[4．1．0]庚烷收率的影响．在优化反应条件(即反应温度为50℃，反应时间为5 h)下，以季铵盐A-1为相转移催化剂，产率可达94．0％．实验证明，季铵盐A-1的催化活性要优于其它短碳链的季铵盐和聚乙二醇，并且在分离过程中不乳化，使产物易于分离纯化
展开▼
