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有机化学
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有机化学 ›› 2011, Vol. 31 ›› Issue (06): 921-924. 上一篇    下一篇

研究简报

Schiff碱铁配合物催化环己烯环氧化

张付利*，汤昆   

  1. (河南大学医学院环境医学研究所 开封 475004)
  • 收稿日期:2011-01-20 修回日期:2011-04-01 发布日期:2011-05-06
  • 通讯作者: 张付利 E-mail:hdzfl508@163.com

Epoxidation of Cyclohexene Catalyzed by Metal Iron Schiff Base Complexes

ZHANG Fu-Li, TANG Kun   

  1. (Institute of Environmental Medicine, Medical College, Henan University, Kaifeng 475004)
  • Received:2011-01-20 Revised:2011-04-01 Published:2011-05-06

PDF

1770

被引次数

32 | 6

合成了一种吡啶甲醛类Schiff碱铁配合物, 并考察了配合物对环己烯绿色环氧化反应的催化活性及反应条件, 结果表明: 吡啶甲醛类Schiff碱铁配合物对环己烯的环氧化反应有比较高的催化活性及选择性. 以过氧化氢为氧源、[Fe(PA2OPd)Cl2]Cl为催化剂、在pH＝5.0左右的乙酸乙酯溶液中25 ℃反应6.0 h, 环己烯转化率可达90.5%, 环氧环己烷选择性可达97.2%.

关键词: 环己烯, 过氧化氢, 环氧环己烷, Schiff碱, 金属配合物

One of pyridinecarboxaldehyde iron(III) Schiff base complexes of [Fe(PA2OPd)Cl2]Cl was synthesized and its catalytic activities for epoxidation of cyclohexene were studied. The complex of [Fe(PA2OPd)Cl2]Cl has the highest catalytic activity for cyclohexene epoxidation using hydrogen peroxide as an oxygen source. At optimum reaction condition (ethyl acetate as a solvent, 25 ℃, pH＝5.0, 6.0 h), the conversion rate of cyclohexene reached 90.5%, the selectivity of cyclohexene oxide was 97.2%, and the TON (moles of cyclohexene oxide produced per mole of [Fe(PA2OPd)Cl2]Cl ) was 1759.

Key words: cyclohexene, hydrogen peroxide, cyclohexene oxide, Schiff base, metal complex