| 摘要 |
PROBLEM TO BE SOLVED: To obtain an aromatic carbonate efficiently while preventing formation of by-product halogenized aromatic hydroxy compounds and maintaining high activity of catalysts by using a specific catalytic system. SOLUTION: This aromatic carbonate, for example, diphenyl carbonate, which is useful as a material for production of polycarbonate, is produced by carrying out a reaction of an aromatic hydroxy compound (for example, phenol) with carbon monoxide and oxygen in the presence of one or more compounds of each group of (A) palladium (compounds) (e.g. palladium acetate, palladium bromide, palladium/carbon), (B) lead compounds [lead oxides, Pb(OR)2 (R is an acyl of a 1-4C alkyl, 6-10 aryl, etc.)], (C) manganese compounds (manganese salts of organic acids, manganese complexes with lead, etc.), and (E) halides [chlorides, bromides (e.g., quaternary ammonium bromide)]. In this reaction system a solvent inactive to the reaction system, such as hexane, may be used. |
