| 混酸催化1,4-桉叶素异构化合成4-松油醇的研究 |
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| 引用本文： | 项小燕,林锡煌,吴粦华,拓宏桂. 混酸催化1,4-桉叶素异构化合成4-松油醇的研究[J]. 应用化工, 2012, 41(2): 252-255 |
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| 作者姓名： | 项小燕 林锡煌 吴粦华 拓宏桂 |
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| 作者单位： | 1. 龙岩学院化学与材料系,福建龙岩,364000
2. 国家海洋局第三海洋研究所,福建厦门,361005 |
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| 基金项目： | 福建省教育厅B类项目资助(JB09220) |
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| 摘 要： | 研究了在磷酸和乙酸混酸催化下,1,4-桉叶素异构化合成4-松油醇。考察了混酸催化剂种类、催化剂用量、反应温度、反应时间等因素对反应的影响。结果表明,最佳反应条件为:1,4-桉叶素10 mL,在12 mL磷酸与乙酸体积比为6∶1的混合酸催化剂中,反应温度60℃,反应时间8 h,1,4-桉叶素转化率可达74.66%,选择性为75.4%。精制后的4-松油醇质量分数在90%以上。
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| 关 键 词： | 1,4-桉叶素 混酸 4-松油醇 异构化 |
Synthesis of 4-terpineol from isomerization of 1,4-cineole catalyzed by mixed acid |
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| XIANG Xiao-yan , LIN Xi-huang , WU Lin-hua , TUO Hong-gui. Synthesis of 4-terpineol from isomerization of 1,4-cineole catalyzed by mixed acid[J]. Applied chemical industry, 2012, 41(2): 252-255 |
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| Authors: | XIANG Xiao-yan LIN Xi-huang WU Lin-hua TUO Hong-gui |
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| Affiliation: | 1 (1.Department of Chemistry & Materials Science,Longyan University,Longyan 364000,China;2.Third Institute of Oceanography,SOA,Xiamen 361005,China) |
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| Abstract: | Synthesis of 4-terpineol from isomerization of 1,4-cineole catalyzed by mixed acid was investigated.Effects of types of catalyst,proportion of mixed acid,reaction temperature,reaction time on isomerization of 1,4-cineole were studied.The results indicated that the optimum reaction conditions were as follows:the amount of 1,4-cineole 10 mL,12 mL mixed acid with the volume ratio of phosphoric acid to acetic acid as 1∶2,the temperature 60 ℃,time 8 h.The conversion rate and selectivity was up to 74.66%,75.4%,respectively.The mass content of purified 4-terpineol was over 90%. |
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| Keywords: | 1,4-cineole mixed acid terpineol isomerization |
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