Reaction in biphasic water/organic solvent system in the presence of surfactant: Inverse phase transfer catalysis versus interfacial catalysis

被引：28
|
作者：
Boyer, B
Hambardzoumian, A
Roque, JP
Beylerian, N
机构：
[1] Univ Montpellier 2, Chim Organ Phys Lab, F-34095 Montpellier 5, France
[2] Yrevan State Univ, Dept Phys Chem, Erevan 375049, Armenia
来源：
TETRAHEDRON | 2000年 / 56卷 / 02期
关键词：
epoxidation; surfactant; phase-transfer catalysis; interface; stirring rate;
D O I：
10.1016/S0040-4020(99)00994-1
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
Unexpected results obtained during the study of the influence of surfactant concentration on chalcone epoxidation by H2O2 in a water/heptane two-phase system in the presence of a surfactant (DTAB) led us to reconsider the catalytic mechanism of this reaction. Two stirring rates experiments, either low speed (i.e. 100 rpm) or high speed (i.e. 1200 rpm), lead us to discuss kinetic results on the basis of two competitive catalytic processes: an Inverse Phase Transfer Catalysis (IPTC) or an Interfacial Catalysis (IC). (C) 1999 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：303 / 307
页数：5
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