Catalyst and process for the preparation of aromatic carbonates

A method for preparing an aromatic carbonate represented by formula (7):

• RO—CO—OR′ (7)
• wherein, R and R′ are identical to or different from each other, and are each a substituted or unsubstituted aryl having 6 to 10 carbon atoms;
• characterized in that, in a method for preparing the aromatic carbonate from an aromatic hydroxy compound, carbon monoxide and oxygen in the presence of a quaternary ammomum or phosphonium salt, and a redox reagent, and in the presence or absence of a base, the reaction is carried out by using a catalyst for the synthetic reaction of an aromatic carbonate in which a palladium compound is supported on the perovskite-type composite oxide represented by the following formula (1′):
• L(1−x)L′xL″Oy (140 )
• (wherein L is a group IIA or IVA metal taking a divalent state in the form of an oxide;
• x is a number of 0 to 1;
• L′ is a metal having an ionic radius of 0.90 Å or more;
• L″ is a group IVA, IVB or IIIB metal taking a tetravalent state in the form of an oxide;
• y is a number of 2.5 to 3.5) and the palladium accounts for 0.01 to 15% of the catalyst by weight.