活性炭负载磷钨酸催化合成香料苹果酯-B  

SYNTHESIS OF PERFUME FRAISTONE CATALYZED BY PHOSPHOTUNGSTIC ACID SUPPORTED ON ACTIVE CARBON

作　　者：旷春桃[1] 于润存[1] 刘慎[1] 胡珍[1] 

机构地区：[1]中南林业科技大学材料科学与工程学院,湖南长沙410004

出　　处：《食品研究与开发》2007年第4期26-28,共3页Food Research and Development

基　　金：中南林业科技大学引进高层次人才科研启动基金资助项目(101-0239)

摘　　要：制备了环境友好催化剂活性炭负载磷钨酸H3PW12O40/C,并以H3PW12O40/C为催化剂催化合成了香料苹果酯-B。得到了苹果酯-B合成的适宜工艺条件:n(1,2-丙二醇):n(乙酰乙酸乙酯)=1.5:1,H3PW12O40/C负载量为23.1%,H3PW12O40/C用量为反应物总质量的1.0%,反应时间为120min,苹果酯-B的收率为84.8%,目的产物经红外光谱、质谱和元素分析确证。An environmental friendly catalyst, phosphotungstie Acid Supported on Active Carbon, was prepared. Fraistone was synthesized from 1,2-propanediol and ethyl acetoacetate in the presence of H3PW12O40/C. The yield of fraistone was 84..8 % under suitable reaction conditions of the molar ratio of 1,2-propanediol to ethyl acetoacetate 1.5：l,the loading amount of H3PW12O40/C 23.1%, the mass percent of H3PW12O40/C to the reactants 1.0 %, and the reaction time 120 min. Fraistone was confirmed by infrared spectrum, mass spectrum and elementary analysis.

关 键 词：苹果酯-B 香料 活性炭负载磷钨酸 合成 催化 

分 类 号：TQ655[化学工程—精细化工]