2-芳基取代苯并噁唑的微波合成及光谱研究  

Research on the Microwave Synthesis and Spectroscopy of 2-Aryl-substituted Benzoxazole

作　　者：冯丽恒[1] 赵三虎[1] 陈兆斌[1] 

机构地区：[1]山西大学化学化工学院,山西太原030006

出　　处：《山西大学学报（自然科学版）》2005年第4期396-399,共4页Journal of Shanxi University(Natural Science Edition)

基　　金：国家自然科学基金(30000112)

摘　　要：在微波辐射条件下,利用邻氨基酚和芳基羧酸在多聚磷酸催化下进行缩合反应,合成了5种2-芳基取代苯并唑化合物.反应的最佳条件为:多聚磷酸为催化剂,辐射功率260 W,辐射时间为4 m in.并对其荧光光谱进行了初步研究,研究表明:随着苯环上取代基吸电子能力的减弱,化合物的荧光最大发射波长向长波方向移动.Under microwve irradiation, five 2-aryl-subsituted benzoxazole compounds were synthesized by condensation of o-aminophenol and carboxylic acid catalyzed by polyphosphoric acid. The optimum reaction condition was as follows：PPA as catalyst,microwave power 260 W and microwave irradiation time 4 min. In addition, the fluorescent spectroscopy of these compounds was preliminary investigated. The results showed that the maximum emission wavelengths shown red-shifted with the electrophilic capability reduction of substituents on benzene ring.

关 键 词：噁唑 微波合成 荧光光谱 

分 类 号：O626.23[理学—有机化学]