微波/对甲苯磺酸协同催化合成水杨酸异辛酯  

SYNTHESIS OF 2-ETHYLHEXYL SALICYLATE UNDER MICROWAVE RADIATION

作　　者：杜彩云[1] 王玉昆[1] 曹东林[1] 刘吕花[1] 

机构地区：[1]河北工程大学,河北邯郸056038

出　　处：《精细石油化工》2010年第3期34-36,共3页Speciality Petrochemicals

基　　金：邯郸市科学技术研究与发展计划项目(0921104044-5);河北工程大学校自然科学基金资助项目(2008.10)

摘　　要：实验以水杨酸与2-乙基己醇为原料,以对甲苯磺酸为催化剂,以微波辐射法合成水杨酸异辛酯。并用红外光谱、紫外光谱、色质联用等手段对产物进行了表征。以正交试验法考察了影响酯收率的因素,最佳反应条件为:水杨酸0.05 mol,n(2-乙基己醇)∶n(水杨酸)=1∶3,催化剂用量0.800 0 g,微波功率为540 W,微波时间为20 min,不加带水剂,收率可达86.76%The 2-ethylhexyl salicylate was synthesized by 2-ethyl hexanol and salicylic acid with p-toluene sulphonic acid as catalyst under microwave radiation. The product was confirmed by IR, UV and GC/MS. Factors influencing the yield were examined by the orthogonally arranged experiments. The optimum conditions were found as follows. 0.05 tool salicylic acid, n（2-ethyl hexanol） ： n（salicylic acid） =1 ：3, 0.8 g catalyst, microwave power 540 W, reaction time 20 rain, and with no water-carrying reagent. Under the above conditions, the yield of 2-ethylhexyl salicylate could reach up to 86.76%.

关 键 词：水杨酸异辛酯 微波 对甲苯磺酸 

分 类 号：TQ245.4[化学工程—有机化工]