摘要
以水杨酸和乙酸酐为原料,以硫酸氢钠为催化剂,微波辐射合成了乙酰水杨酸,并考察了影响反应的因素.实验表明:n(水杨酸):n(乙酸酐)=1:2.0,催化剂用量为水杨酸质量的5%,微波输出功率为425W,辐射时间为60s,产率可达89.7%.
The synthesis of acetyl salicylic acid from salicylic acid and acetic anhydride was studied with microwave radiation and anhydrous sodium bicarbonate as catalyst.The influential factors upon the reaction were investigated.The experimental results showed that the appropriate conditions were：molar ratio of salicylic Acid to acetic anhydride was1：2.0,weight of catalyst was 5% of the salicylic acid,microwave power was 425W,the time of radiation was 60s.The yield was about 89.7%.
出处
《玉林师范学院学报》
2007年第3期35-38,共4页
Journal of Yulin Normal University
关键词
碳酸氢钠
乙酰水杨酸
微波辐射
合成
Anhydrous sodium bicarbonate
Acetyl salicylic acid
Microwave radiation
synthetic
