摘要
以工业废氢溴酸(48%)为原料,在浓硫酸存在下,与正辛醇进行反应合成1-溴辛烷。考察了反应条件对产率的影响,结果表明,比较合适的反应条件为:正丁醇:氢溴酸:浓硫酸(摩尔比)=1:1.15:1.38,反应时间3h,反应温度110~115℃,产率达到99.0%。粗产品经气相色谱分析证明几乎无副产物,产品经IR和折光率进行表征。
1-Bromooctane was synthesized from industrial hydrobromic acid (48%) and n-octanol using concentrated sulfuric acid as catalyst. Various affecting factors were investigated. The optimal condition was as follows:the mole ratio of n-octanol,hydrobromic acid and concentrated sulfuric acid was 1 : 1.15 : 1.38, refluxed for 3 h, the reaction temperature was between 110℃ and 115℃, the yield of 1-bromooctane was up to 99.0%. Raw product was analyzed by GC and no by-product was detected. Pure product was characterized by IR and index of refraction.
出处
《应用化工》
CAS
CSCD
2008年第2期228-230,共3页
Applied Chemical Industry
关键词
1-溴辛烷
浓硫酸
氢溴酸
1-bromooctane
concentrated sulfuric acid
hydrobromic acid