文献类型：期刊文献

中文题名：溴代Ⅱ型苯并三唑类紫外线吸收剂的合成

英文题名：THE SYNTHESIS OF TYPE Ⅱ UV ABSORBERS OF BROMINATED BENZOTRIAZOL STRUCTURE

作者：祁国珍[1];王朝晖[1];林毅清[1]

机构：[1]华东理工大学精细化工系

年份：1999

卷号：27

期号：1

起止页码：15

中文期刊名：江苏化工

外文期刊名：Jiangsu Chemical Industry

语种：中文

中文关键词：紫外线吸收剂;苯并三唑;合成;溴化Ⅱ型

外文关键词：UV absorbers Benzotriazol Synthesis

摘要：通过重氮化、偶合、还原和烷基化反应合成了３个溴代苯并三唑类紫外线吸收剂，经红外光谱、核磁共振、质谱和元素分析等确证了结构，并测定了其吸收波长，实验发现引入溴原子使其紫外线吸收性能提高。
Three type Ⅱ UV absorbers of brominated benzotriazols were prepared by diazotisation,coupling,reduction and alkylation. The structures of these new compounds were characterized by IR, NMR, MS and Elementary Analysis. The UV visible absorption of UV absorbers was also tested. The increase of their molar absorption coefficient and the red shift of their maximum wavelength were due to the bromide in their molecule structures.