摘要
在浓硫酸催化下，采用微波常压法由水杨酸分别与正丁醇、异丁醇、正戊醇和异戊醇反应合成相应的水杨酸酯。结果表明：当水杨酸∶醇∶Ｈ２ＳＯ４＝１∶５．５∶０．３（摩尔比）时，采用５６０Ｗ微波辐射２２ｍｉｎ，水杨酸酯的产率可达８８．７％～９６．４％，反应速度至少是常规反应的１４倍。
Four salicylates were synthesized under microwave irradiation and normal pressure with concentrated H 2SO 4 as a catalyst. When the molar ratio of salicylic acid: alcohol∶H 2SO 4=1∶5.5∶0.3 and the irridiation time of 560W was 22min.,the yields of the esterfication were 88.7%～94.4%. The reaction under microwave was at least 14 times as fast as that under classical condition.
出处
《合成化学》
CAS
CSCD
1998年第4期342-344,共3页
Chinese Journal of Synthetic Chemistry
关键词
微波
水酸正丁酯
水杨酸异丁酯
水杨酸正戊酯
Microwave irradiation, Sslicylic acid, Alcohol, Esterfication, Salicylate
