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布罗波尔的合成与精制
引用本文:曲洋,刘福胜,刘仕伟,于世涛.布罗波尔的合成与精制[J].精细石油化工进展,2010,11(5):9-12.
作者姓名:曲洋  刘福胜  刘仕伟  于世涛
作者单位:青岛科技大学,青岛,266042
摘    要:采用先羟甲基化后溴化反应的方法合成布罗波尔,通过正交试验考察了原料配比、反应时间、反应温度对反应结果的影响,得到的较佳反应条件如下:n(硝基甲烷):n(氢氧化钠):n(甲醛):n(溴素)=1:1:2:1,羟甲基化反应温度20℃,反应时间1.5h,溴化反应温度15℃。考察了布罗波尔在单一及复配溶剂中的溶解度和重结晶试验,确定的较佳复配溶剂比m(乙酸乙酯):m(氯仿)=1:1。在较佳反应条件下,反应过程收率可达90%,重结晶单程收率可达83%,得到的产品纯度在99%以上。

关 键 词:布罗波尔  合成  精制  2-溴-2-硝基-1    3-丙二醇

Synthesis and Purification of Bronopol
Qu Yang,Liu Fusheng,Liu Shiwei,Yu Shitao.Synthesis and Purification of Bronopol[J].Advances in Fine Petrochemicals,2010,11(5):9-12.
Authors:Qu Yang  Liu Fusheng  Liu Shiwei  Yu Shitao
Affiliation:Qu Yang Liu Fusheng Liu Shiwei Yu Shitao ( Qingdao University of Science and Technology, Qingdao 266042)
Abstract:Bronopol was synthesized by hydroxymethylation and bromination. The effects of n(nitromethane) : n(NaOH) :n(formaldehyde) :n( bromine), reaction temperature and reaction time on reaction result were ex- amined by orthogonal experiments. The optimum reaction conditions were ane) : n (NaOH) : n (formaldehyde) : n(bromine) = 1 : 1:2 : 1, hydroxymethy methylation time 1.5 hours, bromination temperature 15 ~C. The solubility obtained as follows : n ( nitrometh- lation temperature 20 ~C, hydroxy- and recrystallization of bronopol in different solvents were studied. The suitable solvent was the mixture of ethyl acetate and chloroform with the mass ratio of 1:1. Under the above conditions, the yield of product was up to 90%. Recrystallization yield and purity of product were 83% and 99% respectively.
Keywords:bronopol  synthesis purification  2 - bromo - 2 - nitro - 1  3 - propanediol
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