基于稠合噻吩的苯并噻唑衍生物的制备及紫外光谱（英文）  

Synthesis and UV-Vis spectra of benzothiazole derivatives based on fused thiophene

作　　者：李春丽[1] 王华[1] 

机构地区：[1]河南大学特种功能材料教育部重点实验室,河南开封475004

出　　处：《化学研究》2015年第4期427-432,共6页Chemical Research

基　　金：National Science Fund of China(20972041,U1304207);Program of Henan University(SBGJ090506)

摘　　要：通过醛与邻氨基苯硫酚缩合反应制备了三种基于不同结构的二噻吩并噻吩的苯并噻唑衍生物2b,2c与2d,产率分别为44%,35%和42%.并利用核磁共振谱,质谱,高分辨质谱及红外光谱对其结构进行了验证.紫外光谱研究表明随着二噻吩并噻吩的平面性增强,供电子性增强,共轭体系增大,对应苯并噻唑衍生物的最大吸收波长逐渐发生红移.热重分析表明化合物2b,2c与2d均有较高的热分解温度.Three kinds of fused thiophene substituted benzothiazole derivitives（2b,2c,2d）were synthesized by reacting fused thiophene aldehydes with ortho-aminobenzenethiol in yield of 44%,35% and 42%,respectively.Their structures were confirmed by NMR,MS,HRMS and IR.Their UV-Vis spectra revealed stronger electron-donating property,larger conjugated system and better planarity of fused thiophene leads to longer maximum absorption.The detection of thermal stability showed compounds 2b,2c,2dpossessing high decomposition temperatures.

关 键 词：合成 苯并噻唑衍生物 稠合噻吩 紫外-可见光谱 

分 类 号：O627.12[理学—有机化学]