MANUFACTURING METHOD OF AROMATIC CARBONATE FROM DIALKYLCARBONATE CAPABLE OF EFFECTIVELY MANUFACTURING DIARYLCARBONATE BY PROMOTING THE REACTION RATE OF ESTERIFICATION OF DIALKYLCARBONATE BY USING A SPECIFIC CATALYST WITH HIGH CATALYST ACTIVITY

摘要

PURPOSE: A manufacturing method of aromatic carbonate from dialkylcarbonate is provided to manufacture aromatic carbonate with high yield even in low reaction temperatures by using dialkyl carbonate, not carbon monoxide, as reaction raw material.;CONSTITUTION: A manufacturing method of aromatic carbonate from dialkylcarbonate comprises a step of reacting an aromatic hydroxy compound, and a dialkyl carbonate under the presence of a catalyst in chemical formula 1: (L)Ti(OR)2. In chemical formula 1, R is a C1-10 alkyl group or a C6-30 aryl group, LH2 is ONNO type ligand in chemical formula 1-a. The used amount of the catalyst is 1 10^(-5) - 5 10^(-1) mol based on 1 mole of dialkyl carbonate. The reaction is reacted at 100-280 C.;COPYRIGHT KIPO 2012