【作者】 刘玉平； 孙宝国； 谢建春； 田红玉； 郑福平； 黄明泉；

【Author】 Liu Yuping Sun Baoguo Xie Jianchun Tian Hongyu Zheng Fuping Huang Mingquan (School of Chemical and enviromental Engineering, Beijing Technology and Business University,Beijing 100037)

【机构】 北京工商大学化学与环境工程学院；

【摘要】 本文以硫酸氢钠为催化剂,环己烷为带水剂,己酸和苯乙醇为原料,合成了食用香料己酸苯乙酯。考察了原料摩尔比、反应时间、催化剂的量、带水剂用量对产率的影响。实验表明,较优的反应条件为:苯乙醇与己酸的摩尔比为0．30:0．15,催化剂硫酸氢钠0．005mol,环己烷20mL,反应1．5h,产率为95．6％。采用红外光谱和气-质联用等分析手段对产物进行了结构确定。更多还原

【Abstract】 Phenylethyl hexanoate was prepared by esterification of phenylethyl alcohol and hexanoic acid in the presence of sodium bisulfate as calalyst and cyclohexane as dehydrating agent. Factors influencing the yield of product were discussed . The better reaction condition were found as: mole ratio of phenylethyl alcohol and hexanoic acid was 0.30 to 0.15, the reaction last 1.5h, the amount of sodium bisulfate was 0.005 mole and the volume of cyclohexane was 20mL. The yield of phenylethyl hexanoate was 95.6% . The finished product was analyzed and confirmed by IR and GC - MS.更多还原