《化学和黏合》
 
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2018年 先后5希望

1-溴-4-碘萘的合成及特点*
李晓鹏, 杨 英**, 吕宏飞, 吴绵园, 梅立鑫, 刘 洋
(葡京游戏平台官方网站 石油化学研究院,黑龙江 哈尔滨 150040)
选择 如果:使用更氮化法合成具有多种用的新型有机合成材料1-溴-4-碘萘。首先通过1-萘胺乙酰化氨基保护合成1-乙酰萘胺,尤其选择性溴化合成4-溴-1-乙酰萘胺,再进行碱性水解合成4-溴-1-氨基萘,随即通过重氮化偶合反应合成1-溴-4-碘萘。观了乙酰化反应过程中不同反应温度对反应的影响,规定最佳反应温度为118℃;并且考察了再氮化反应中影响时间对反应的影响,规定最佳反应时间为0.5h。通过红外光谱及热重对那结构进行了特点和分析,规定合成的吗对象化合物。
关键词:1-乙酰萘胺;4-溴-1-氨基萘;再氮化;1-溴-4-碘萘
  受到图分类号:TQ 450.4 文献标识码:A 文章编号:1001–0017 (2018)05–0337-03

Synthesis and Characterization of 1-Bromo-4-iodonaphthalene

LI Xiao-peng, YANG Jie, LV Hong-fei, WU Mian-yuan, MEI Li-xin and LIU Yang

(Institute of Petrochemistry, Heilongjiang Academy of Sciences, Harbin 150040, China)

Abstract: The diazotization method is used to synthesize the 1-bromo-4-dodonaphalene which is a kind of novel multipurpose organic synthetic material. At first, the 1-acetylnaphthylamine is synthesized from 1-naphthylamine by acetylation amino protection and the 4-bromo-1-acetylnaphthylamine is further synthesized by selective bromination and then the alkali hydrolysis reaction takes place between the 4-bromo-1-acetylnaphthylamine and sodium hydroxide to prepare 4-bromo-1-naphthylamine. After that the 1-bromo-4-iodonaphthalene can be synthesized by diazotization coupling reaction. The effects of reaction temperature on the acetylation are investigated, and the optimal one is 118℃; The effects of reaction time on the diazotization reaction are also studied, and the best one is 0.5h. The product is confirmed to be the target compound by FT-IR and TG analysis.

Key words: 1-acetylnaphthylamine; 4-bromo-1-naphthylamine; diazotization; 1-bromo-4-iodonaphthalene

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