PRODUCTION OF DIPHENYL CARBONATE

PURPOSE:To obtain a compound useful as a raw material for synthesizing a polycarbonte in high quality easily without fear of coloring, by reacting a dialkyl carbonate with phenol in the presence of an ester exchange reaction catalyst consisting essentially of ferric acetate. CONSTITUTION:A dialkyl c...

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Bibliographic Details
Main Author HARANO YOSHIYUKI
Format Patent
LanguageEnglish
Published 04.08.1986
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
APPARATUS THEREFOR
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
CHEMISTRY
GENERAL METHODS OF ORGANIC CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
THEIR RELEVANT APPARATUS
TRANSPORTING
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Summary:PURPOSE:To obtain a compound useful as a raw material for synthesizing a polycarbonte in high quality easily without fear of coloring, by reacting a dialkyl carbonate with phenol in the presence of an ester exchange reaction catalyst consisting essentially of ferric acetate. CONSTITUTION:A dialkyl carbonate shown by the formula (R-O)2-C=O (R is 1-10C alkyl) is reacted with phenol in the presence of an ester exchange reaction catalyst consisting essentially of ferric acetate at 100-300 deg.C, preferably at 150-250 deg.C to give the aimed diphenyl carbonate. A molar ratio of the dialkyl carbonate and phenol is preferably 1:1-1:10, and the amount of the catalyst used is 0.001-10mol/l, preferably 0.01-0.1mol/l based on the whole reaction mixture.
Bibliography:Application Number: JP19850013499