摘要
研究了合成1,1,1,3,3-五氯丙烷的优化工艺条件。以四氯化碳和氯乙烯为原料,在催化剂氯化亚铜作用下,通过自由基加成反应合成出1,1,1,3,3-五氯丙烷,用NMR、GC-MS、GC等分析检测手段对目标产物进行了表征。研究得到合成反应的优化工艺条件为:乙腈为溶剂,用量为总物料质量的10%-20%,反应物料比n(四氯化碳)∶n(氯乙烯)=1∶0.3-0.4,反应温度为110-125℃,反应压力为0.5-1.0 MPa,反应时间为5-8 h,催化剂氯化亚铜的用量为氯乙烯质量的1.5%-3.5%,选用三乙醇胺为助催化剂,其用量与氯化亚铜的质量比为1∶1。1,1,1,3,3-五氯丙烷的得率为72%,产物纯度为98%。
The optimum condition of the synthesis of 1 paper. 1,1,1,3,3-pentachloropropane is prepared by ,1,1,3,3-pentachloropropane is studied in this radical addition reacting carbon tetrachloride with vinyl chloride in the presence of cuprous chloride. The product is determined by NMR, GC-MS, GC, etc.. Through the research of influencing factors, the optimum condition of the synthetic process of 1,1,1,3,3-pentachloropropane is obtained as follows: the dosage of solvent acetontrile is 10% - 20% of total quality of reaction compounds, n (CC14 ) : n (VnCl) = 1: 0.3 - 0.4, the reaction temperature is 110 - 125 ℃, the reaction pressure is 0.5 - 1.0 Mpa, the reaction time is 5 - 8 h, the catalyst cuprous chloride is 1.5% -3.5% of the quality of vinyl chloride. The triethaolamine is selected to use as the catalyst promoter, and its dosage is equal with cuprous chloride. The yield of 1,1,1,3, 3-pentachloropropane can be reached 72% and the purity of product is 98%.
出处
《南京理工大学学报》
EI
CAS
CSCD
北大核心
2007年第3期385-389,共5页
Journal of Nanjing University of Science and Technology
关键词
卤代烷
1
1
1
3
3-五氯丙烷
合成
自由基加成
催化剂
氯化亚酮
halogen alkane
1,1,1,3,3-pentachloropropane
synthesis
radical addition
catalyst
cuprous chloride
作者简介
陆明(1963-),男,江苏海安人,教授,博士生导师,主要研究方向:精细有机合成与含能材料,E—mail:luming@mail.njust.edu.cn。