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Adsorption at the liquid–liquid interface: An important factor in phase‐transfer catalysis
Author(s) -
Lasek Wojciech,
Mąkosza Mieczysław
Publication year - 1993
Publication title -
journal of physical organic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.325
H-Index - 66
eISSN - 1099-1395
pISSN - 0894-3230
DOI - 10.1002/poc.610060706
Subject(s) - chemistry , adsorption , catalysis , ammonium , rationalization (economics) , aqueous solution , phase (matter) , alkali metal , aqueous two phase system , mass transfer , inorganic chemistry , chemical engineering , organic chemistry , chromatography , philosophy , epistemology , engineering
A new rationalization of some phenomena in the phase‐transfer catalysed processes promoted by concentrated aqueous alkali solutions, such as alkylations and β‐eliminations, is proposed. It is predicted on the basis of adsorption theory and subsequently evidenced experimentally that the size of the interfacial area, controlled by the rate of stirring, affects the position of the extraction equilibrium of various anions with quaternary ammonium cations supplied by the phase‐transfer catalysts.