【摘 要】
：
以水杨酸、2-乙基己醇为原料,对甲苯磺酸为催化剂,直接反应合成了水杨酸-2-乙基己酯,并用折光率、红外光谱对产物进行了表征.研究了水杨酸与2-乙基己醇物质的量比、催化剂用
【机 构】
：
湖南第一师范学院,湖南长沙410205;湖南雪天精细化工股份有限公司,湖南长沙410015
论文部分内容阅读
以水杨酸、2-乙基己醇为原料,对甲苯磺酸为催化剂,直接反应合成了水杨酸-2-乙基己酯,并用折光率、红外光谱对产物进行了表征.研究了水杨酸与2-乙基己醇物质的量比、催化剂用量、反应温度、反应时间对酯化率和产物收率的影响.得出的最优反应条件为:n(水杨酸)∶n(2-乙基己醇)为1:3,催化剂对甲苯磺酸的质量分数为水杨酸的10％,反应温度为130?140℃,反应时间为4h.在此条件下,酯化率为98.85％,水杨酸-2-乙基己酯的收率为94.32％,纯度可以达到99％以上.
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