南京林业大学学报(自然科学版) ›› 2010, Vol. 34 ›› Issue (02): 89-94.doi: 10.3969/j.jssn.1000-2006.2010.02.021

• 研究论文 • 上一篇    下一篇

左旋β蒎烯选择性氧化合成右旋诺蒎酮的研究

刘兵,敖汪伟,杨杨,王石发*   

  1. 南京林业大学化学工程学院,江苏南京210037
  • 出版日期:2010-05-14 发布日期:2010-05-14
  • 基金资助:
    收稿日期:2009-04-10修回日期:2009-12-14基金项目:国家自然科学基金项目(30571468);国家自然科学基金重点项目(30430580)作者简介:刘兵(1984—),硕士生。*王石发(通信作者),教授。Email: wsfyyq@njfu.com.cn。引文格式:刘兵,敖汪伟,杨杨,等. 左旋β蒎烯选择性氧化合成右旋诺蒎酮的研究[J]. 南京林业大学学报:自然科学版,2010,34(2):89-94.

Synthesis of (+)nopinone from (-)βpinene by selective oxidation

LIU Bing, AO Wangwei, YANG Yang, WANG Shifa*   

  1. College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
  • Online:2010-05-14 Published:2010-05-14

摘要: 以(-)β蒎烯为原料,经选择性氧化合成(+)诺蒎酮,分析了在不同氧化剂及溶剂体系下β蒎烯的氧化行为。研究了β蒎烯与高锰酸钾摩尔比、硫酸与高锰酸钾摩尔比、溶剂类型、反应温度、反应时间等因素对β蒎烯氧化转化率和诺蒎酮产物选择性的影响。结果表明,左旋β蒎烯选择性氧化合成右旋诺蒎酮适宜的氧化工艺条件:β蒎烯与高锰酸钾摩尔比为1∶3,硫酸与高锰酸钾摩尔比0.054∶1,以丙酮为溶剂,反应温度为15~25 ℃,反应时间为5 h。此条件下β蒎烯转化率为94.15 %,诺蒎酮选择性为89.19 %,诺蒎酮得率为83.97 %,纯度为95.29 %,比旋光度为[α]18D+33.86°(c 1.01, CHCl3)。另外,采用IR、GC-MS、1H NMR和13C NMR等对诺蒎酮结构进行了表征。

Abstract: (+)nopinone was synthesized through selective oxidation of (-)βpinene, and the oxidation behavior of βpinene under different oxidants and solvents system were examined. Effects of the molar ratios of βpinene/KMnO4 and H2SO4/KMnO4, types of solvents, reaction temperature and time on the conversion of βpinene and selectivity of (+)nopinone were investigated. The results showed that the suitable oxidation conditions of (-)βpinene into (+)nopinone were as follows: βpinene/KMnO4 molar ratio 1∶3, H2SO4/KMnO4 molar ratio 0.054∶1, acetone was used as the solvent, reaction temperature 15—25 ℃, and reaction time 5 h. The conversion of βpinene, selectivity of oxidation, yield of (+)nopinone, specific rotation and purity of obtained product were 94.15 %, 89.19 %, 83.97 %, [α]18D+33.86°(c 1.01, CHCl3), and 95.29 %, respectively. The structure of (+)nopinone was determined by IR, 1H NMR, 13C NMR and GCMS spectra.

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