| 虫白蜡还原法制备高级烷醇混合物研究 |
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| 引用本文： | 马李一,王有琼,张重权,甘瑾,郑华,郭元享,赵虹,段琼芬.虫白蜡还原法制备高级烷醇混合物研究[J].林产化学与工业,2009,29(5):6-10. |
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| 作者姓名： | 马李一 王有琼 张重权 甘瑾 郑华 郭元享 赵虹 段琼芬 |
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| 作者单位： | 中国林业科学研究院资源昆虫研究所,云南昆明,650224 |
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| 基金项目： | “十一五”国家科技支撑计划资助(2006BAD06B07);;国家林业局重点项目资助(2006-54) |
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| 摘 要： | 通过虫白蜡还原法制备高级烷醇混合物探索研究,得到虫白蜡制备高级烷醇混合物的工艺优化条件:10 g虫白蜡还原制备高级烷醇,氢化铝锂用量0.7 g,四氢呋喃溶剂用量70 mL,在65℃、常压和超声波作用条件下,进行还原反应5 h后,用水煮沸洗涤2~3次,过滤,滤饼烘干,虫白蜡转化率可达到95%~98%。用有机溶剂重结晶高级烷醇混合物后,用气相色谱测定组成为二十六烷醇56%、二十八烷醇32%、二十四烷醇5.2%、三十烷醇4.0%、二十五烷醇1.5%、二十七烷醇0.9%。
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| 关 键 词： | 虫白蜡 还原剂 高级烷醇 还原反应 氢化铝锂 |
Preparation of Policosanol from Insect Wax by Reduction Method |
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| MA Li-yi,WANG You-qiong,ZHANG Zhong-quan,GAN Jin,ZHENG Hua,GUO Yuan-heng,ZHAO Hong,DUAN Qiong-fen.Preparation of Policosanol from Insect Wax by Reduction Method[J].Chemistry & Industry of Forest Products,2009,29(5):6-10. |
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| Authors: | MA Li-yi WANG You-qiong ZHANG Zhong-quan GAN Jin ZHENG Hua GUO Yuan-heng ZHAO Hong DUAN Qiong-fen |
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| Institution: | Research Institute of Resource Insects;Chinese Academy of Forestry;Kunming 650224;China |
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| Abstract: | Policosanol was prepared from insect wax reduced by LiA1H_4.The optimized condition is: 0.7 g LiAlH_4 and 70 mL tetrahydrofuran with 10 g wax,reaction temperature 65 ℃,atmospheric pressure and ultrasonic condition for 5 h for reducing reaction.The product was washed with boiling water for 2-3 times,then filtered and dried to obtain policosanol (crude) of 95 %-98 % yield.After recrystallizing the crude policosanol from organic solvent for 3 times and dried,the obtained policosanol has the composition of hexacosanol 56 %,octacosanol 32 %,tetracosanol 5.2%,triacontanol 4.0 %,pentacosanol 1.5%,heptacosanol 0.9 % by GC analysis. |
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| Keywords: | insect wax reducing agent policosanol reduction reaction lithium aluminium tetrahydride(LiAlH_4) |
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