H_3PW_(12)O_(40)/C催化合成苹果酯和苹果酯-B  

Synthesis of fructone and fraistone catalyzed by H_3PW_(12)O_(40)/C

作　　者：旷春桃[1] 李湘洲[1] 胡珍[1] 于润存[1] 

机构地区：[1]中南林业科技大学材料科学与工程学院,长沙410004

出　　处：《食品科技》2007年第6期162-164,共3页Food Science and Technology

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

摘　　要：制备了环境友好催化剂活性炭负载磷钨酸H3PW12O40/C,并以负载量为23.1%H3PW12O40/C催化合成了苹果酯、苹果酯-B。合成苹果酯、苹果酯-B的适宜工艺条件为n(醇)∶n(乙酰乙酸乙酯)=1.5∶1,H3PW12O40/C用量为反应物总质量的1.0%,反应时间分别为90min和120min,苹果酯、苹果酯-B的收率分别为80.4%和84.8%。目的产物经红外光谱、元素分析和质谱确证。H3PW12O40/C, an environmental friendly catalyst, was prepared. Fructone and fraistone were synthesized in the presence of 23.1% H3PW12O40/C. The yield of fructone and fraistone was 80.4% and 84.8% respectively under reaction conditions of the molar ratio of alcohol to ethyl acetoacetate 1.5：1, the mass percent of H3PW12O40/C to the reactants 1.0%, and the reaction time 90min and 120min respectively. Fructone and fraistone was confirmed by infrared spectrum, elementary analysis and mass spectrum.

关 键 词：苹果酯 苹果酯-B 活性炭负载磷钨酸 合成 催化 香料 

分 类 号：TS201.2[轻工技术与工程—食品科学]