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Kinetics of the allylation of phenoxide by polyethylene glycol in a two‐phase reaction
Author(s) -
Wang MawLing,
Chang KongRong
Publication year - 1991
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450690141
Subject(s) - polyethylene glycol , chemistry , peg ratio , aqueous solution , kinetics , phase (matter) , aqueous two phase system , inorganic chemistry , chloride , polymer chemistry , polyethylene , extraction (chemistry) , solubility , organic chemistry , physics , economics , finance , quantum mechanics
Polyethylene glycol (PEG) was used as the phase transfer catalyst in the two‐phase allylation of phenoxide with allyl chloride. The kinetics of the reaction both in the organic phase and in the aqueous phase was studied in detail based on the ion‐extraction mechanism. The reaction rates both in the organic and aqueous phases were increased by PEG. The concentration of phenoxide in the organic phase results from adding PEG followed by a reaction second order in the concentration of phenoxide in the aqueous phase. This is due to the ability of PEGs to form complexes with sodium cations. In the aqueous phase, the PEG will enhance the solubility of allyl chloride.