乙基香兰素的相转移催化合成 李英春

33 2004 2

1 Applied Chemical I ndustry

Vol. 33 No. 1 F eb. 2004

李英春, 滕俊江

( , 266042)

: , 55~ 60 e , : ; : O 62514 , ; :A ; , , 75. 5% ,

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: 1671- 3206( 2004) 01- 0026- 02

Synthesis of ethyl vanillin by the phase transfer catalysis LI Ying -chun, T EN G Jun-j iang

( Colleg e of Chemistr y and Molecular Engineer ing , Q ing dao U niv ersity of Science and T echno logy, Qingdao 266042, China)

Abstract: Sy nt hesis of intermediate O- ethoxy pheny l et her and ethyl vanillin by the phase transfer cat alysis w as studied in t his paper and f act ors af fecting the sy nt hesis, such as t emperat ure, t he react ion time w ere discussed in this art icle. Af ter cont rasting the result s of a serial of experiment s, we found t he optimum synt hesis condition are as follow s: t he synt hesis of O- hy drox y pheny l ethyl ether t ook place at the tem perature 60 e ; t he synthesis of et hy l vanillin t ook place at t he t emperat ure from 55 e t o 60 e . T he result of t his st udy is t hat t he synt hesis w ay by using transfer cat alysis is pract ical and pro mosing. T he yield of O ethoxy pheny l et her can reach 75. 5% , and Et hylvanillin can reach 70% . Key words: et hy l vanillin; O- et hoxy phenol et her; phase t ransf er cat alysis; synt hsis 3 , , , 10% , - N, N , , , , , Reimer ) T iemann e , , , , , , , XT 4 1. 2 1. 2. 1 ; SP 2000 -4 -

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: 13061307511, E mail: y ing chunli957@ sohu. com -

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