第 38 卷第 1 期 |  | Vol. 38 No. 1 | 2008 年 2 月 | Feb 2008 |
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所屬欄目:有機合成原料
溴代烷烴的清潔合成及表征 |
宋志國1,王 敏2,姜 恒3,宮 紅3
(1. 渤海大學(xué) 科技實(shí)驗中心,遼寧 錦州 121000;2. 渤海大學(xué) 化學(xué)化工學(xué)院,遼寧 錦州 121000;3. 遼寧石油化工大學(xué),遼寧 撫順 113001) |
摘 要:以工業(yè)副產(chǎn)品溴化鉀為溴源,水為溶劑,在溴化鉀0.1 mol,醇0.08 mol,濃硫酸5~8 mL,水2.5~4.5 mL,回流反應4 h條件下,合成了12種溴代烷烴,包括直鏈溴代烷烴、支鏈溴代烷烴、溴代環(huán)烷烴。經(jīng)折光率、1H NMR、IR、元素分析對其結構進(jìn)行了表征。水相經(jīng)生石灰簡(jiǎn)單處理后,達到環(huán)保排放要求。討論了合成條件對不同結構溴代烷烴收率的影響,考察了該工藝的放大及重復使用穩定性。 |
關(guān)鍵詞:溴代烷烴;溴化鉀;合成;表征 |
中圖分類(lèi)號:O622.2 文獻標識碼:A 文章編號:1009-9212(2008)01- 0037-03 |
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Clean Synthesis and Characterization of Bromoalkanes |
SONG Zhi-guo1,WANG Min2,JIANG Heng3,GONG Hong3
(1. Center for Science & Technology Experiment,Bohai University,Jinzhou 121000,China;2. College of Chemistry and Chemical Engineering,Bohai University,Jinzhou 121000,China;3. Liaoning Shihua University,Fushun 113001,China) |
Abstract:Twelve bromoalkanes were synthesized from industrial by-product potassium bromide that the by-product in industry as bromine donator in water,which included linear-chain bromoalkanes,branched-chain bromoalkanes and bromocyclanes. The reaction conditions were as follows:potassium bromide 0.1 mol,alcohol 0.08 mol,concentrated sulfuric acid 5~8 mL,water 2.5~4.5 mL,and refluxed for 4 h. The structures of pure products were characterized by index of refraction,1H NMR,IR and elemental analysis. Aqueous phase simply disposed by calcium oxide can meet the environmental protection requirements. The effect of reaction conditions on the yields were discussed and the magnification and reuse experiments were investigated. |
Key words:bromoalkane;potassium bromide;synthesis;characterization |
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作者簡(jiǎn)介:宋志國(1975-),男,遼寧撫順人,助理實(shí)驗師,研究方向:精細化工。(Email:lnszgsky@yahoo.com.cn)
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收稿日期:2008-02-12
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