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林产化学与工业

林产化学与工业 ›› 2008, Vol. 28 ›› Issue (5): 109-112.

• 研究报告 • 上一篇    下一篇

双氧水在锰(Ⅱ)催化下对α-蒎烯的环氧化反应研究

欧阳小月1, 江焕峰2   

  1. 1. 韶关学院 化学与环境工程学院, 广东, 韶关, 512005;2. 华南理工大学 化学科学学院, 广东, 广州, 510640
  • 收稿日期:2007-11-09 修回日期:1900-01-01 出版日期:2008-10-30 发布日期:2008-10-30
  • 通讯作者: 江焕峰,博士生导师,从事有机合成方法的研究;E-mail:Jianghf@scut.edu.cn。

Research on Epoxidation of α-Pinene Catalyzed by Mn(Ⅱ) Sulfate Using H2O2 as Oxidant

OUYANG Xiao-yue1, JIANG Huan-feng2   

  1. 1. College of Chemistry and Environment Engineering, Shaoguan University, Shaoguan 512005, China;2. College of Chemistry, South China University of Technology, Guangzhou 510640, China
  • Received:2007-11-09 Revised:1900-01-01 Online:2008-10-30 Published:2008-10-30

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摘要： 研究了在以硫酸锰作催化剂、碳酸氢盐和乙腈作助催化剂,以30%的H2O2为氧源,对α-蒎烯的环氧化反应.并对有无催化剂、有无助催化剂及其量的多少对反应的影响,对最佳反应温度、最佳反应溶剂和双氧水的最佳用量的影响进行了研究.反应的最佳条件是:当底物用量50mmol时(即α-蒎烯8mL),乙腈15mL,叔丁醇60mL,NH4HCO3 2g,室温水浴和电磁搅拌下缓慢滴入0mL 30%H2O2,反应8h后,原料完全转化,环氧化产率81%(GC分析).

关键词: α-蒎烯, 环氧化, 低浓度双氧水, 锰催化剂

Abstract: A simple and practical procedure of epoxidation of α-pinene catalyzed by Mn2+ sulfate together with NH4HCO3 and CH3CN as co-catalysts, using 30% H2O2 as oxidant is presented. The influences of the factors in the reaction were investigated. The optimum conditions are as follows: CH3CN 15mL, NH4HCO3 2g, tert-BuOH 60mL, 30% H2O2 40mL when 8mL α-pinene. Under such conditions after 48h reaction time, the conversion of α-pinene was completed, the yield of 2,3-epoxypinane was 81% (by GC analysis).

Key words: α-pinene, epoxidation, dilute hydrogen peroxide, Mn2+ catalyst

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