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林产化学与工业

林产化学与工业 ›› 2007, Vol. 27 ›› Issue (6): 77-80.

• 研究报告 • 上一篇    下一篇

磺烷基咪唑磷酸盐-氯乙酸复合催化体系在α-蒎烯水合反应中的应用

季开慧1, 刘仕伟2, 于世涛1, 刘福胜1, 解从霞3   

  1. 1. 青岛科技大学 化工学院, 山东 青岛 266042;2. 中国林业科学研究院 林产化学工业研究所;国家林业局 林产化学工程重点开放性实验室, 江苏 南京 210042;3. 青岛科技大学 化学与分子工程学院, 山东 青岛 266042
  • 收稿日期:2006-12-13 修回日期:1900-01-01 出版日期:2007-12-30 发布日期:2007-12-30
  • 通讯作者: 于世涛,教授,博士,博士生导师,主要从事催化、精细化工及林产化工方面的研究;E-mail:yushitaoqust@126.com。

Hydration of α-Pinene over the Composite Catalytic System of Sulfonic Alkylimidazole Phosphate-chloroacetic Acid

JI Kai-hui1, LIU Shi-wei2, YU Shi-tao1, LIU Fu-sheng1, XIE Cong-xia3   

  1. 1. College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China;2. Institute of Chemical Industry of Forest Products, CAF;Key and Open Lab.on Forest Chemical Engineering, SFA, Nanjing 210042, China;3. College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
  • Received:2006-12-13 Revised:1900-01-01 Online:2007-12-30 Published:2007-12-30

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摘要： 制备了一种酸功能化离子液体1-(3-磺酸基)丙基-3-甲基咪唑磷酸二氢盐((HSO3-pmim)H2PO),并用FT-IR、1H NMR、13C NMR对其进行了表征.将其同氯乙酸构成的复合催化体系磺烷基咪唑磷酸盐-氯乙酸((HSO3-pmim)H2PO-ClCH2COOH)用于催化α-蒎烯水合反应,详细考察了水合反应的影响因素,得到了较佳的反应条件:n(α-蒎烯):n((HSO3-pmim)H2PO):n(氯乙酸):n(水)6:1:6:30,反应温度80℃,反应时间8h.在该条件下α-蒎烯转化率为97%,松油醇选择性7.1%.并对催化体系的重复使用性进行了考察,该催化体系不经处理直接重复使用5次时,α-蒎烯转化率仍达83.7%,松油醇选择性51.6%.

关键词: α-蒎烯, 水合反应, 酸功能化离子液体, 催化

Abstract: An acidic functional ionic liquid 1-(3-sulfonic group)propyl-3-methylimidazole dihydro-phosphate((HSO3-pmim)H2PO4) was prepared and characterized by FT-IR, 1H NMR and 13C NMR. Hydration of α-pinene was studied over the composite catalytic system of sulfonic alkylimidazole phosphate-chloroacetic acid((HSO3-pmim)H2PO4-ClCH2COOH). The optimum conditions for hydration of α-pinene were obtained as follows: n(α-pinene):n((HSO3-pmim)H2PO4):n(chloroactic acid):n(water) 6:1:6:30,reaction temperature 80℃, reaction time 8 h. Under the above conditions, the conversion of α-pinene was 97% and the selectivity of terpineol was 47.1%. The reusability of the composite catalytic system was investigated. Under the optimum conditions, when the composite catalytic system was repeatedly used for 5 times, α-pinene conversion reached 83.7% and the selectivity of terpineol was51.6%. It also can be found that the simple experimental and product-isolation procedure combinated with easy recovery and reusability of the composite catalytic system are expected to contribute to the development of clean and environmentally friendly strategy for the synthesis of α-terpineol.

Key words: α-pinene, hydration, acidic functional ionic liquid, catalysis

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