摘要
以氨基磺酸为催化剂,对以环己酮和1,2-丙二醇为原料合成环己酮1,2-丙二醇缩酮进行了研究。较系统地研究了酮醇摩尔比,催化剂用量,反应时间诸因素对收率的影响。最佳反应条件为:n(酮)∶n(醇)=1∶1.5,催化剂用量为1 g,带水剂环己烷15 mL,反应时间60 m in。上述条件下,环己酮1,2-丙二醇缩酮的收率可达71.15%。
cyclohexanone 1,2-propanediol ketal ( Ⅰ )was synthesized from cyclohexanone ( Ⅱ ) and 1,2- propanediol( Ⅲ ) in the presence of aminosulfonic acid ( Ⅳ ). Factors influencing the product yield were discussed and the best reaction conditions were found. Experimental result showed that Ⅳ is an excellent catalyst . With n( Ⅱ ) : n( Ⅲ )=1 : 1.5,w(Ⅳ )=1 g,the carrying water reagent is 15 mL,and the reaction time=60min,yieldof I can reach 71.15%.
出处
《延安大学学报(自然科学版)》
2005年第4期70-71,75,共3页
Journal of Yan'an University:Natural Science Edition
关键词
环己酮1
2-丙二醇缩酮
氨基磺酸
催化
缩酮
cyclohexanone 1,2-propanediol ketal
aminosulfonic acid
catalysis
ketalation