第 37 卷第 6 期Vol. 37 No. 6
2007 年 12 月Dec 2007

所属栏目:有机合成原料

氢溴酸法合成1-溴代十二烷
宫 红,向刚伟,姜 恒 (辽宁石油化工大学 化学与材料科学学院,辽宁 抚顺 113001)
摘 要:以生产溴代金刚烷得到的副产品氢溴酸为原料,在浓硫酸存在的条件下与正十二醇进行反应合成1-溴代十二烷。确定优惠合成条件为:n(正十二醇) ∶ n(氢溴酸) ∶ n(浓硫酸)=1 ∶ 1.25 ∶ 1.15,回流时间3 h。产品经气相色谱分析证明无副产物,收率92.5%,含量99.9%,产品经IR和折光率进行表征。
关键词:1-溴代十二烷;氢溴酸;浓硫酸
中图分类号:O623.2  文献标识码:A  文章编号:1009-9212(2007)06- 0045-03
Synthesis of 1-Bromododecane Using Hydrobromic Acid Method
GONG Hong, XIANG Gang-wei, JIANG Heng (College of Chemical and Material Science,Liaoning Shihua University,Fushun 113001,China)
Abstract:1-Bromododecane was synthesized from n-dodecyl alcohol using byproduct hydrobromic acid from 1-bromoadamantan process as raw material in the presence of the concentrated sulfuric acid. The optimal conditions were as follow:the molar ratio of n-dodecyl alcohol,hydrobromic acid and concentrated sulfuric acid was 1 ∶ 1.25 ∶ 1.15,the reaction time was 3 h. No by-product was detected in the product by GC. The yield of 1-bromododecane was 92.5% ,and the purity was 99.9%. The product was characterized by IR and index of refraction.
Key words:1-bromododecane; hydrobromic acid; concentrated sulfuric acid
作者简介:宫 红(1968-),女,辽宁营口人,教授,硕士,主要从事分析化学和材料合成的教学及研究工作。
联 系 人:姜 恒,教授。(E-mail:hjiang78@hotmail.com)
收稿日期:2007-11-22