第 35 卷第 2 期 Vol. 35 No. 2 2005 年 4 月 Apr 2005

所属栏目：其它 4-羟基-4′-氰基联苯的合成研究

伍全红; 肖志海(湖南天宇农药化工集团有限公司; 南华大学化学化工学院; 湖南衡阳)

摘　要：以4羟基联苯为原料,经过酯化、傅克酰基化反应、氨解、水解和脱水反应等步骤,合成制得液晶材料中间体4羟基4′氰基联苯。此合成方法操作简单,各步反应条件温和,总收率为47.7%,不产生含氰废水,有利于工业生产。

关键词：4-羟基-4′-氰基联苯; 4-羟基联苯; 液晶; 合成

中图分类号：O625.67　　文献标识码：A　　文章编号：1009-9212(2005)02-0048-02

Study on the Synthesis of 4-Hydroxy-4′-Cyano-Biphenyl

WU Quan-hong ~（1）; XIAO Zhi-hai~（2）（1. Hunan Tianyu Pesticide Chemical Industry Group Co.; Ltd; Hengyang 421001; China; 2. School of Chemistry and Chemical Engineering; Nanhua University; China）

Abstract：hydroxy-4′-cyano-biphenyl could be synthesized by esterification(to protect hydroxyl), F-C reaction, ammonolysis, hydrolysation and dehydration of 4-hydroxy- Biphenyl. In comparison with the other synthetic routes, the operation was easy to be operated, and the yield was proved(the whole yield was 47.7%). And it was easy for manufacture.

Key words：4-hydroxy -4′-cyano-biphenyl 4-hydroxy-biphenyl; liquid crystal; synthesis

收稿日期：2004-03-26

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