对-甲苯磺酸催化合成香料β-萘乙醚

Synthesis of the Perfume of 2 - Ethoxynaphthalene with P-Methyl - Benzene Monosulfonic Acid as the Catalyst

研究了以β-萘酚和乙醇为原料,对甲苯磺酸作催化剂,环已烷作溶剂,合成香料β-萘乙醚的新工艺,得出最佳反应条件:M（C10H7O）:M（C2H5OH）=1:3,回流反应7h,收率为98.7％,产品熔点为35～37°C。

2 - Ethoxynaphthalene was synthesized form 2 - naphthol and ethanol, with p - methyl - benzene monosulfonic acid as catalyst in cyclohexane. The best reaction terms are as follows: 2 - naphthol : ethanol =1; 3.the reflux respond 7 h, and accept the rate to 98.7% .tmp35-37°C . The yield is 98.7% .