高等学校化学学报

高等学校化学学报 ›› 2001, Vol. 22 ›› Issue (7): 1155.

• 研究论文 • 上一篇    下一篇

酮-过氧化氢体系对烯烃的环氧化

郑炎松, 肖勤   

  1. 华中科技大学化学系, 武汉 430074
  • 收稿日期:2001-01-11 出版日期:2001-07-24 发布日期:2001-07-24
  • 通讯作者: 郑炎松(1961年出生),男,博士,副教授,从事有机化学及高分子化学研究.E-mail:yszh@puhlic.wh.hb.cn E-mail:yszh@puhlic.wh.hb.cn
  • 基金资助:

    国家自然科学基金(批准号:20072007);华中科技大学人才引进基金;华中科技大学自然科学基金资助

Epoxidation of Olefins by Ketone-H2O2 System

ZHENG Yan-Song, XIAO Qin   

  1. Department of Chemistry, Huazhong University of Science and Technology, Wuhan 430074, China
  • Received:2001-01-11 Online:2001-07-24 Published:2001-07-24

PDF (PC)

被引次数

29

关键词: 过氧化酮, 过氧化氢, 环氧化

Abstract: Epoxidation of olefins was carried with an excellent yield by dioxiranes generated in situ by reaction of ketone with H2O2 in the presence of NaHCO3 in mixed solvent of acetonitrile and water. The catalytic activity of various ketones on epoxidation was studied for the first time. It is found that the ketone with electron-withdrawing group has an excellent catalytic activity and trifluromethyl ketone has the highest catalytic activity. Some bulky ketones with electron-withdrawing group show a very low catalytic activity. For olefins, the electron withdrawing group decreased the reactivity of the olefin and the electron donating group increased the reactivity, but the steric factor has little effect on the reactivity of olefins.

Key words: Dioxirane, Hydrogen peroxide, Epoxidation

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