对甲苯磺酸催化合成丁酮1,2-丙二醇缩酮  

Catalytic synthesis of butanone 1,2-propanediol ketal by p-CH_3C_6H_4SO_3H·H_2O

作　　者：吕宝兰[1] 张海晓[1] 杨水金[1] 

机构地区：[1]湖北师范学院化学与环境工程学院,湖北黄石435002

出　　处：《湖北师范学院学报（自然科学版）》2011年第1期1-3,6,共4页Journal of Hubei Normal University(Natural Science)

基　　金：湖北省自然科学基金(2005ABA053);湖北师范学院教研基金资助项目

摘　　要：以对甲苯磺酸为催化剂,以丁酮和1,2-丙二醇为原料催化合成了丁酮1,2-丙二醇缩酮。正交实验筛选出适宜反应条件为:丁酮=0.2mol,n(丁酮):n(1,2-丙二醇)=1.0:1.6,催化剂用量占反应物料总质量的1.3%,带水剂环己烷用量为15mL,反应时间为60min.在此反应条件下,丁酮1,2-丙二醇缩酮的收率可达72.98%.Butanone-1,2-propanediol ketal was prepared from butanone and 1,2-propanediol using p-CH3C6H4SO3H·H2O as a catalyst.The optimal reaction conditions were screened by orthogonal test method.The yield of butanone-1,2-propanediolketal can reach 72.89% under the optimum reaction conditions that butanone is 0.2mol,molar ratio of butanone to 1,2-propanediolglycol is1.0∶1.6,the quantity of catalyst is equal to 1.3% of the feed stocks,the volume of cyclohexane as the carrying-water agent is 15mL,and the reaction time is 1.0h.The product was characterized by the index of refractive,IR and 1H NMR.

关 键 词：丁酮1 2-丙二醇缩酮 对甲苯磺酸 催化剂 正交试验 

分 类 号：TQ655[化学工程—精细化工]