Synthesis of Alkylphenyl Ethers in Aqueous Surfactant Solutions by Micellar Phase-Transfer Catalysis. 2. Two-Phase Systems

Langmuir ◽  
1997 ◽  
Vol 13 (23) ◽  
pp. 6053-6057 ◽  
Author(s):  
Turgut Battal ◽  
Cincin Siswanto ◽  
James F. Rathman
Keyword(s):  
Phase Transfer Catalysis ◽  
Phase Transfer ◽  
Two Phase ◽  
Micellar Phase ◽  
Surfactant Solutions ◽  
Phase Systems

Synthesis of Alkylphenyl Ethers in Aqueous Surfactant Solutions by Micellar Phase-Transfer Catalysis. 1. Single-Phase Systems

Langmuir ◽  
1997 ◽  
Vol 13 (23) ◽  
pp. 6047-6052 ◽  
Author(s):  
Cincin Siswanto ◽  
Turgut Battal ◽  
Oron E. Schuss ◽  
James F. Rathman
Keyword(s):  
Single Phase ◽  
Phase Transfer Catalysis ◽  
Phase Transfer ◽  
Micellar Phase ◽  
Surfactant Solutions ◽  
Phase Systems

Application des conditions de réaction par transfert de phase à la synthèse d'amino-éthers dérivés du trans phénoxy-2 cyclohexanol

1986 ◽  
Vol 64 (3) ◽  
pp. 626-632 ◽  
Author(s):  
P. Depreux ◽  
A. Marcincal-Lefebvre
Keyword(s):  
Phase Transfer Catalysis ◽  
Phase Transfer ◽  
Quaternary Salt ◽  
Organic Medium ◽  
Phase System ◽  
Two Phase ◽  
Statistical Correlations ◽  
Reaction Proceeds ◽  
Phase Systems ◽  
Solid Liquid

Amino-ethers of trans-2-phenoxycyclohexanol were prepared by methods involving anhydrous conditions (sodium alkoxides in xylene) or phase transfer catalysis conditions (liquid–liquid or solid–liquid two-phase systems). Various factors were optimized. In the liquid–liquid two-phase system, when no catalyst was added, reaction proceeds with comparable or even better yields than with some PTC catalysts, a quaternary salt being formed insitu. It was shown that the deprotonation of ROH takes place at the interface, since there was no OH− extraction in organic medium and the yield depends on the stirring speed. In the presence of Aliquat, the yield does not change with the organic concentration of the catalyst. Statistical correlations obtained between the variations in yield and several other parameters were good.

scholarly journals Interfacial Processes—The Key Steps of Phase Transfer Catalyzed Reactions

Catalysts ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 1436
Author(s):  
Mieczysław Mąkosza ◽  
Michał Fedoryński
Keyword(s):  
Experimental Evidence ◽  
Phase Transfer ◽  
Initial Step ◽  
Organic Anions ◽  
Two Phase ◽  
Interfacial Processes ◽  
Phase Systems ◽  
Catalyzed Reactions ◽  
Key Steps

After short historical introduction, interfacial mechanism of phase transfer catalyzed (PTC) reactions of organic anions, induced by aqueous NaOH or KOH in two-phase systems is formulated. Subsequently experimental evidence that supports the interfacial deprotonation as the key initial step of these reactions is presented.

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