Synthesis of 2-(2-acetoxy-5-bromomethylphenyl)-2<i>H</i>-benzotriazole

马威

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Synthesis of 2-(2-acetoxy-5-bromomethylphenyl)-2H-benzotriazole

更新时间：2025-12-10

- Synthesis of 2-(2-acetoxy-5-bromomethylphenyl)-2H-benzotriazole
- CIESC Journal Issue 11, (2010)
- 作者机构：
  
  大连理工大学精细化工国家重点实验室
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- DOI：
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- Online First：05 November 2010，
  
  Published：05 November 2010
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马威. Synthesis of 2-(2-acetoxy-5-bromomethylphenyl)-2H-benzotriazole[J]. CIESC Journal, 2010, (11).
DOI：

马威. Synthesis of 2-(2-acetoxy-5-bromomethylphenyl)-2H-benzotriazole[J]. CIESC Journal, 2010, (11). DOI：

摘要

Abstract

2-(2-Acetoxy-5-bromomethylphenyl)-2H-benzotriazole with high reactivity was synthesized by two steps: acetylation of hydroxyl group of 2-(2-hydroxy-5-methylphenyl)-2H-benzotriazole(UV-P)and bromination of acetylated UV-P with N-bromosuccinimide(NBS).Effects of reaction conditions including solvent

initiator

temperature

reaction time

ratio of the reactants and concentration of acetylated UV-P on the yield of the target product and reaction efficiency were studied. The yield reached 60% under the following optimum conditions: under N2 atmosphere

CCl4 as solvent and 2-2-azo-bis-isbutyronitrile (AIBN) as initiator

with 1∶1 for the molar ratio of NBS to 2-(2-acetoxy-5-methylphenyl)-2H-benzotriazole

and bromination under reflux for 1h. The structure of the product was confirmed by IR

1H NMR and MS spectroscopies.

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Synthesis of 2-(2-acetoxy-5-bromomethylphenyl)-2H-benzotriazole

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摘要

Abstract

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Keywords

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