1,5-二硝基萘的合成与分离纯化
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摘要:
报道了一种简单、温和、经济、有效的合成1,5-二硝基萘的新方法.首先以65%~68%的硝酸和较少量浓硫酸作硝化剂来替代高浓度的混酸硝化剂或其它复杂且使用不便的硝化剂,无需添加其它助剂及有机溶剂,在温和条件下能以94.4%的收率得到1,5-二硝基萘和1,8-二硝基萘的混合物.然后利用该混合物在丙酮中溶解性的差异,通过调控丙酮的用量及温度可方便地将1,5-二硝基萘进行分离纯化,收率可达42.3%.
A simple, mild, economical and efficient approach to 1, 5 - dinitronaphthalene is reported. Firstly, with 65% -68% nitric acid and a smaller amount of concentrated sulfuric acid as nitrating agent instead of concentrated nitrating agent of the mixed acid mixture or other complex and inconvenient nitrating agents, the mixture of 1, 5 - dinitronaphthalene and 1 , 8~dinitronaphthalene could be obtained in 94. 4% yield under mild conditions in the absence of additives and organic solvents. Then, based on their difference of dissolubility in acetone, 1, 5 - dinitronaphthalene could be separated conveniently in 42. 3% yield by controlling the amount and temperature of acetone.
作者:
张晓鹏 于胜姿 苗江欢 聂娟娟
Zhang Xiaopeng Yu Shengzi Miao Jianghuan Nie Juanjuan(Key Laboratory of Green Chemical Media and Reactions？ Ministry of Education, School of Chemistry and Chemical Engineering,Henan Normal University, Xinxiang 453007, Chin)
机构地区:
betway官方app 化学化工学院绿色化学介质与反应省部共建教育部重点实验室
出处:
《betway官方app 学报：自然科学版》 CAS 北大核心 2017年第2期35-37,共3页
基金:
河南省高校科技创新团队支持计划(15IRTSTHN003) 河南省高等学校青年骨干教师项目(2013GGJS-059) betway官方app 青年骨干教师项目(2011-8)
关键词:
1,5-二硝基萘 萘 硝化
1,5-dinitronaphthalene naphthalene nitration
分类号:
O625.61 [理学—有机化学]
