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

所屬欄目:有機合成原料

氫溴酸法合成1-溴代十二烷
宮 紅,向剛偉,姜 恒 (遼寧石油化工大學(xué) 化學(xué)與材料科學(xué)學(xué)院,遼寧 撫順 113001)
摘 要:以生產(chǎn)溴代金剛烷得到的副產(chǎn)品氫溴酸為原料,在濃硫酸存在的條件下與正十二醇進(jìn)行反應合成1-溴代十二烷。確定優(yōu)惠合成條件為:n(正十二醇) ∶ n(氫溴酸) ∶ n(濃硫酸)=1 ∶ 1.25 ∶ 1.15,回流時(shí)間3 h。產(chǎn)品經(jīng)氣相色譜分析證明無(wú)副產(chǎn)物,收率92.5%,含量99.9%,產(chǎn)品經(jīng)IR和折光率進(jìn)行表征。
關(guān)鍵詞:1-溴代十二烷;氫溴酸;濃硫酸
中圖分類(lèi)號:O623.2  文獻標識碼:A  文章編號: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
作者簡(jiǎn)介:宮 紅(1968-),女,遼寧營(yíng)口人,教授,碩士,主要從事分析化學(xué)和材料合成的教學(xué)及研究工作。
聯(lián) 系 人:姜 恒,教授。(E-mail:hjiang78@hotmail.com)
收稿日期:2007-11-22
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