碘掺杂聚苯胺催化剂催化合成环己酮乙二醇缩酮  

Synthesis of Cyclohexanone Ethylene Ketal Catalyzed by I_2/PAn

作　　者：杨水金[1] 尹国俊[1] 

机构地区：[1]湖北师范学院化学与环境工程系,黄石435002

出　　处：《精细石油化工进展》2005年第4期15-17,共3页Advances in Fine Petrochemicals

基　　金：湖北省教育厅重点科研基金(2004D007)资助项目

摘　　要：以自制的单质碘掺杂聚苯胺(I2/PAn)为催化剂,环己酮和乙二醇为原料,合成了环己酮乙二醇缩酮。探讨了碘掺杂聚苯胺催化剂对缩酮反应的催化活性,较系统地研究了原料摩尔比、催化剂用量、反应时间等因素对产物收率的影响。实验表明:碘掺杂聚苯胺是合成环己酮乙二醇缩酮的良好催化剂,在酮醇摩尔比1:1.6,催化剂用量为反应物料总质量的0.2%,环己烷为带水剂,反应时间1.0 h的优化条件下,环已酮乙二醇缩酮的收率可达90.1%。A new environmentally friendly catalyst I2/PAn was prepared. Cyclohexanone ethylene ketal (1) was synthesized from cyclohexanone and glycol in the presence of I2/PAn. The factors influencing the yield of 1 were discussed. The optimum conditions were as follows: molar ratio of cyclohexanone to glycol 1:1.6, mass ratio of the catalyst to the reactants 0.2% , and reaction time 1.0h. Under above conditions, the yield of 1 could reach 90.1% . Experimental results showed that I2/PAn was an excellent catalyst for synthesizing Ⅰ .

关 键 词：碘 聚苯胺 催化剂 环己酮乙二醇缩酮 催化合成技术 制备方法 香料 

分 类 号：O624.4[理学—有机化学]