文献类型：期刊文献

中文题名：氯代苯并三唑类紫外线吸收剂的合成

英文题名：Synthesis of UV absorbers of Chlorinated Benzotriazol Structure

作者：王朝晖[1];祁国珍[1]

机构：[1]华东理工大学精细化工系

年份：1998

卷号：24

期号：6

起止页码：705

中文期刊名：华东理工大学学报（自然科学版）

外文期刊名：Journal of East China University of Science and Technology

收录：CSTPCD;;国家哲学社会科学学术期刊数据库;Scopus;北大核心:【北大核心1996】；CSCD:【CSCD2011_2012】；

基金：国家自然科学基金

语种：中文

中文关键词：紫外线吸收剂;相转移催化剂;氯化苯并三唑;合成

外文关键词：UV absorbers; benzotriazol; PTC; alkylation

摘要：通过重氮化、偶合、还原和烷基化反应合成了７个氯代苯并三唑类紫外线吸收剂，在烷基化反应中使用了相转移催化剂三乙基苄基氯化铵。合成的紫外线吸收剂经红外、核磁共振、质谱等确证了结构。测定吸收波长发现引入氯原子使其摩尔消光系数增大，最大吸收波长向长波方向移动。
Seven UV absorbers of benzotriazol structure were prepared by diazotisation, coupling, reduction and alkylation. The phase transfer catalyst (PTC) triethylbenzyl ammonium chloride (TEBA) was used in alkylation. Their structures were characterized by IR, NMR, MS and elementary analysis. The UV visible absorption of those UV absorbers was also tested. The increase of their molar absorption coefficient and the red shift of their wavelenghth were due to the chlorine in their molecule structures.