【摘要】 通过重氮化、偶合、还原和烷基化反应合成了７个Ｉ型苯并三唑类紫外线吸收剂，并经红外光谱、质谱、元素分析等手段确证结构，其中６个为新化合物。对所合成的紫外线吸收剂进行了紫外－可见光谱测试，发现所有Ｉ型苯并三唑类紫外线吸收剂皆有优良的紫外吸收能力，摩尔消光系数是Ⅰ型紫外线吸收剂Ｓｅｅｓｏｒｂ７０８的１．５５～１．６８倍。并对紫外线吸收剂的构效关系作了阐述更多还原

【Abstract】 Seven type II UV absorbers of benzotriazol structure were prepared by diazotization,coupling,reduction and alkylation.Their structures were characterized by IR,MS and elem entary analysis.Six of them were new compounds.The UV V is absorption of those UV absorbers was tested.All those compounds were found to have good absorption ability of UV light,and were found to have 1.55～1.68 times absorption ability of Seesorb 708(type Ⅰ)absorbers.The relation between absorption and molecule structure was also stated.更多还原