【摘要】 研究了在固体超强酸ZrO2/S2O2-8催化下,肉桂酸与甲醇作用合成肉桂酸甲酯的工艺.考查了催化剂的用量、酸醇摩尔比、反应时间及催化剂的性能对反应的影响.最佳反应条件为∶n(肉桂酸)∶n(甲醇)=1∶10,m(肉桂酸)∶m(催化剂)=3∶1,反应温度90～95℃,反应时间5h,酯化率为95.7%.更多还原

【Abstract】 The synthetic technology of methyl cinnamate with solid superacid ZrO₂/S₂O^2-₈ as catalyst was studied. The quantity of catalyst, the reaction ratio, the reaction temperature, property of the catalyst on the effect of esterification were discussed. The optimized esterification conditions are: n（cinnamaic acid） ∶n（methanol）=1∶10, m（cinnamate acid） ∶m（catalyst）=3∶1, reaction temperature 90～95℃. This method has the merits of operational simplicity, high yields, non-pollutive. The yield of the esterification is 95.7 %.更多还原