超声辐射下硫酸催化合成1,1-二乙酸酯  

Synthesis of 1,1-Diacetates via H_2SO_4 Catalysis under Ultrasonic Irradiation

作　　者：张英群[1] 张美月[1] 刘伟华[1] 李越敏[1] 刘敏[1] 王春[1] 

机构地区：[1]河北农业大学理学院,保定071001

出　　处：《有机化学》2009年第8期1259-1263,共5页Chinese Journal of Organic Chemistry

基　　金：河北省自然科学基金(No.299158);河北农业大学非生命学科和新兴学科科研发展基金资助项目

摘　　要：在超声波辐射和硫酸催化下由芳香醛和乙酸酐反应合成了系列1,1-二乙酸酯衍生物.以10mol%硫酸为催化剂,芳香醛和乙酸酐的物质的量比为1∶1.6,25～30℃下反应10～15min,产物产率可达85.2%～98%.产物结构经1HNMR和IR确证.A series of 1,1-diacetates were synthesized by the acetalization reactions of aromatic aldehydes with acetic anhydride using H2SO4 as catalyst under ultrasonic irradiation at room temperature. At a molar ratio of 1：1.6 of aromatic aldehydes to acetic anhydride the reactions were catalyzed by 10 mol% H2SO4 in 25-30℃ for 10-15 min in high yields from 85.2% to 98%. The products were identified by 1H NMR and IR spectra.

关 键 词：超声波 硫酸 1 1-二乙酸酯 合成 

分 类 号：O623.624[理学—有机化学]