摘要
杂多配合物催化合成羧酸异戊酯的研究王玉和，周百斌，关良智，王晓光，单永奎，李萍，周宏立（哈尔滨师范大学化学系哈尔滨１５００８０）关键词杂多酸，酯化作用，异戊酯，催化羧酸异戊酯广泛用于调制各种香型的食品香料，用作溶剂、萃取剂、制革、人造丝、涂料、化妆品...
The synthesis of OSoamyl carboxylic ester by the esterifieation of isoamyl alcohol andcarboxylic acid under the catalysis of heteropoly complexe acids and new type of lanthanideheteropoly catalysts have benen studied. The later shows low catalytic activity. In the presence ofheteropoly acid catalysts,the optimum conditions of the esterified reaction were found by gaschromatograph as follows:acid/alcohol ratio(molar ratio)1.05:1;consumption of catalysts 7‰,reaction time for 2h.The catalysts could be used repeatedly for at least 80h without recoveryingand refreshing,Under given reaction conditions,the esterification may be duplicated readily andover 95%conversion of alcohol and 95%yield of ester may be obtained. The selectivity of thecatalysts is 100%.
出处
《化学研究与应用》
CAS
CSCD
1995年第3期313-317,共5页
Chemical Research and Application
基金
国家和黑龙江省自然科学基金
关键词
杂多酸
催化剂
羧酸异戊酯
合成
heterpoly acid,isoamyl carboxylic ester,esterification,catalyze
