• 材料化学工程与纳米技术 • Previous Articles Next Articles
MA Wei, LIU Yong, ZHANG Shufen
Online:
Published:
马威,刘勇,张淑芬
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.
摘要:
2-(2-羟基-5-甲基苯基)-2H-苯并三唑(UV-P)经过羟基乙酰化、N-溴代丁二酰亚胺(NBS)溴代,合成了具有高反应活性的2-(2-乙酰氧基-5-溴甲基苯基
MA Wei, LIU Yong, ZHANG Shufen. Synthesis of 2-(2-acetoxy-5-bromomethylphenyl)-2H-benzotriazole[J]. .
马威,刘勇,张淑芬. 2-(2-乙酰氧基-5-溴甲基苯基)-2H-苯并三唑的合成 [J]. CIESC Journal.
0 / / Recommend
Add to citation manager EndNote|Ris|BibTeX
URL: https://hgxb.cip.com.cn/EN/
https://hgxb.cip.com.cn/EN/Y2010/V61/I11/2992