Homogeneous and Heterogeneous Performances of Pyridinium Ionic Liquids in the Allylic Oxidation of Ionone-like Dienes

杨敏; 彭黔荣; 谢如刚; 宋光富; 兰静波; 游劲松

doi:10.1016/S1004-9541(08)60304-3

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Homogeneous and Heterogeneous Performances of Pyridinium Ionic Liquids in the Allylic Oxidation of Ionone-like Dienes

Updated：2026-01-06

- Homogeneous and Heterogeneous Performances of Pyridinium Ionic Liquids in the Allylic Oxidation of Ionone-like Dienes
- Chinese Journal of Chemical Engineering Vol. 17, Issue 6, Pages: 967-975(2009)
- Affiliations：
  
  1. Department of Chemistry, Sichuan University,Chengdu,China,610064
  2. School of Chemistry and Chemical Engineering, Guizhou University,Guiyang,China,550003
  3. Technology Center, China Tobacco Guizhou Industry Co., Ltd.,Guiyang,China,550003
- Author bio：
- Funds：
- DOI：10.1016/S1004-9541(08)60304-3
  CLC：
- Published：2009
- Accepted：
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YANG Min, PENG Qianrong, XIE Rugang, SONG Guangfu, LAN Jingbo, YOU Jinsong. Homogeneous and Heterogeneous Performances of Pyridinium Ionic Liquids in the Allylic Oxidation of Ionone-like Dienes[J]. , 2009, 17(6): 967-975.
DOI：

YANG Min, PENG Qianrong, XIE Rugang, SONG Guangfu, LAN Jingbo, YOU Jinsong. Homogeneous and Heterogeneous Performances of Pyridinium Ionic Liquids in the Allylic Oxidation of Ionone-like Dienes[J]. , 2009, 17(6): 967-975. DOI： 10.1016/S1004-9541(08)60304-3.

摘要

Abstract

The combination of relatively low-cost ionic liquids

simple copper salt

and terminal oxidant

tert

-butyl hydroperoxide provided an efficient and environmentally friendly approach to the preparation of ionone-like dienones.Six pyridinium ionic liquids were evaluated in allylic oxidation of α-ionone and β-ionone.The 60%-70% yields of 3-oxo-α-ionone were obtained with 0.02-0.20 mmol of CuCl

·2H

O as catalyst

3-5 mmol of

tert

-butyl hydroperoxide as oxidant and 1 g of [Bpy

]

as solvent for 4-20 h at 60℃.The facile recovery and recycle of catalyst were also achieved.More significantly

peculiar phase behaviors of [Bpy

]

and [Epy

]

offered the catalytic system advantages of homogeneous reaction and heterogeneous separation.Scanning electron microscope(SEM) images of [Bpy

]

provided evidences for the behaviors.Transmission electron microscope(TEM) micrographs showed copper salt nanoparticles catalyst formed and stabilized in pyridinium ionic liquids.

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