Issue 10, 2002
From the journal:

Journal of the Chemical Society, Perkin Transactions 2

Inverse phase transfer catalysis versus interfacial catalysis. Effect of medium stirring in the epoxidation reaction of chalcone by hydrogen peroxide

Bernard Boyer,*a   Araik Hambardzoumian,a   Jean-Pierre Roqueb  and  Norair Beylerianb  

* Corresponding authors

a Laboratoire de Chimie Organique Physique, Université Montpellier II, Place E. Bataillon, 34095 Montpellier Cedex 5, France

b Department of Physical and Colloid Chemistry, Yrevan State University, 1A Manoukian Ave., Yrevan, Armenia

Abstract

The epoxidation of chalcone by H2O2 has been investigated in a water–heptane two-phase system in the presence of a surfactant (dodecyltrimethylammonium bromide; DTAB) in order to analyse the role played by the rate and the type of stirring (magnetic and sonication). Under these conditions two catalytic processes have been proved to intervene: an inverse phase transfer catalysis (IPTC) or an interfacial catalysis (IC). This latter process appears to be very sensitive to stirring efficiency.

Graphical abstract: Inverse phase transfer catalysis versus interfacial catalysis. Effect of medium stirring in the epoxidation reaction of chalcone by hydrogen peroxide

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Article information

DOI
https://doi.org/10.1039/B204953H
Article type
Paper
Submitted
22 May 2002
Accepted
25 Jul 2002
First published
02 Sep 2002

J. Chem. Soc., Perkin Trans. 2, 2002, 1689-1691

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Inverse phase transfer catalysis versus interfacial catalysis. Effect of medium stirring in the epoxidation reaction of chalcone by hydrogen peroxide

B. Boyer, A. Hambardzoumian, J. Roque and N. Beylerian, J. Chem. Soc., Perkin Trans. 2, 2002, 1689 DOI: 10.1039/B204953H

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