| 摘要 |
PURPOSE:To remarkably enhance equilibrium constant and obtain the title compound in short time and high yield, by reacting a phenol compound with a dialiphatic carbonate, etc., under a specific high reaction temperature in the presence of a catalyst. CONSTITUTION:A compound (e.g., phenol or o, m or p-cresol) expressed by formula I (Ar is aromatic compound residue, etc.) is reacted with a compound (e.g., dimethylcarbonate) expressed by formula II (R' is monovalent aliphatic hydrocarbon) or compound (e.g., phenylmethylcarbonate or phenylethylcarbonate) expressed by formula III at 220-350 deg.C to provide the aromatic carbonate compound expressed by formula IV (e.g., diphenylcarbonate). The reaction temperature is preferably carried out at high temperature condition of 255-320 deg.C. |
