第 35 卷第 4 期 Vol. 35 No. 4 2005 年 8 月 Aug 2005

所属栏目：有机合成原料 4-(5-甲基苯并恶唑基)-4-苯并恶唑基二苯乙烯的合成

王金波; 秦瑞香; 刘福胜; 于世涛(青岛科技大学化工学院; 莱阳农学院植保系; 山东青岛)

摘　要：以对氰基苄基氯、邻氨基对甲苯酚和对醛基苯基苯并恶唑为原料,经加成环化、酯化、缩合三步反应合成了荧光增白剂4-(5-甲基苯并恶唑基)-4'-苯并恶唑基二苯乙烯,三步反应的收率分别可达85%、92%和91%以上。双苯并恶唑二苯乙烯产品纯度>99%,并用元素分析、红外光谱以及紫外吸收光谱对所得的化合物进行了表征。

关键词：荧光增白剂; 4-（5-甲基苯并恶唑基）-4'-苯并恶唑基二苯乙烯; 合成

中图分类号：TQ252.4　　文献标识码：A　　文章编号：1009-9212(2005)04-0050-03

Synthesis of 4-(5-methylbenzoxazol-2-yl )-4'-( benzoxazol-2-yl ) stilbene

WANG Jin-bo1; QIN Rui-xiang2; LIU Fu-sheng1; YU Shi-tao1 （1.College of Chemical Engineering; Qingdao University of Science and Technology; Qingdao 266042; China; 2. Department of Plant Protection; Laiyang Agricultural College; Qingdao 266109; China）

Abstract：An optical brightener 4-(5-methylbenzoxazol-2-yl )-4'-( benzoxazol-2-yl ) stilbene was synthesized by additive cyclization, esterification and condensation using 4-cyanobenzyl chloride, o-amino-4-methylphenol and 4-formylphenylbenzoxazole as starting materials. The yield of the three steps was over 85%, 92% and 91%, respectively. The obtained product was characterized by element analysis, IR and UV and its purity was over 99%.

Key words：optical brighteners; 4-（5-methylbenzoxazol-2-yl ）-4'-（benzoxazol-2-yl）stilbene; synthesis

收稿日期：2005-03-02

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