| 反应型氯乙酰基苯并三唑紫外线吸收剂的合成 |
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| 引用本文： | 于淑娟,莫羡忠,梁春群,郑玉斌.反应型氯乙酰基苯并三唑紫外线吸收剂的合成[J].日用化学工业,2009,39(3). |
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| 作者姓名： | 于淑娟 莫羡忠 梁春群 郑玉斌 |
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| 作者单位： | 1. 广西师范学院,化学系,广西,南宁,530001
2. 大连理工大学,高分子材科专业,辽宁,大连,116012 |
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| 摘 要： | 以2-(2'-羟基-5'-甲基苯基)苯并三唑(UV-P)和氯乙酰氯为原料,无水AlCl3为催化剂,硝基苯为溶剂,通过酯化和Fries重排反应合成了反应型紫外线吸收剂2-(2'-羟基-3'-氯乙酰基-5'-甲基苯基)苯并三唑(HCAMPBZ).考察了不同溶剂对产物收率的影响,结果表明,以硝基苯为溶剂,产物收率高达64.3%.采用FTIR,1HNMR和UV对产物进行了结构表征.其产物在232 nm,312 nm和352 nm处有强紫外吸收,与原料UV-P相比发生了明显红移,通过紫外吸光度测定计算了UV-P及其产物的摩尔消光系数ε分别为23 120 L·mol-1·cm-1和20 160 L·mol-1·cm-1.
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| 关 键 词： | 紫外线吸收剂 2-(2'-羟基-3'-氯乙酰基-5'-甲基苯基)苯并三唑 Fries重排反应 |
Synthesis of reactive type UV absorbent chloroacetyl benzotriazole |
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| YU Shu-juan,MO Xian-zhong,LIANG Chun-qun,ZHENG Yu-bin.Synthesis of reactive type UV absorbent chloroacetyl benzotriazole[J].China Surfactant Detergent & Cosmetics,2009,39(3). |
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| Authors: | YU Shu-juan MO Xian-zhong LIANG Chun-qun ZHENG Yu-bin |
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| Affiliation: | 1.Department of Chemistry;Guangxi Teachers Education University;Nanning;Guangxi 530001;China;2.Department of Polymer Materials;Dalian University of Technology;Dalian;Liaoning 116012;China |
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| Abstract: | A reactive type UV absorbent 2-(2'-hydroxy-3'-chloroacetyl-5'-methylphenyl)benzotriazole(HCAMPBZ)was synthesized from 2-(2'-hydroxy-5'-methylphenyl)benoztriazole(UV-P)and chloroacetyl chloride by esterification and Fries rearrangement reaction with presence of nitrobenzene as solvent and anhydrous aluminium chloride as catalyst.The effect of the variety of solvent on product yield was studied.Results showed that the yield could be as high as 64.3% with nitrobenzene as solvent.The chemical structure of produ... |
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