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4-溴-1,8-萘酐的合成工艺改进 被引量:2

Improvement of synthetic technology of 4- bromo- 1,8- naphthalic anhydride
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摘要 介绍了合成 4-溴- 1, 8-萘酐的几种主要方法,并以 1,8-萘酐为 原料,用溴化钾一次氯酸对其进行溴化,可制得纯度为 98%的 4-溴- 1,8-萘酐, 收 率达 70%以上 .对影响该反应的主要因素──溴化剂的用量、反应的温度及 pH值进行了研 究,给出了较好的条件 . Main methods of preparing 4- bromo- 1 and 8- naphthalenic anhyd ride were discussed in this paper.4- bromo- 1,8- naphthalic anhydride with p urity of 98 percent.was obtained through bromization of potassium bromide and hy pochlorous acid from 4- bromo- 1,8- naphthalic anhydride. The yield reached m ore than 70 percent .The main factor including quantity of bromide, temperature of reaction and PH value were investigated. The better condition of reaction was found.
出处 《沈阳工业大学学报》 EI CAS 2001年第3期264-266,共3页 Journal of Shenyang University of Technology
关键词 4-溴-萘酐 合成 溴化 工艺 萘酐 溴化钾 4- bromo- 1,8- naphthalic anhydride synthesis bronmination
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