An improvement to the interfacial boundary process for producing carbonic acid diaryl esters is disclosed. In the two-stage process that entails phosgene and monophenols reaction in an inert solvent, in the presence of alkali and in the presence of a nitrogen base catalyst, the improvement comprising maintaining a temperature below 50° C. in the first and second stages.
本发明公开了对生产
碳酸二芳基酯的界面边界工艺的改进。在两阶段工艺中,
光气和一
苯酚在惰性溶剂中、碱存在下和氮基催化剂存在下进行反应,改进包括在第一和第二阶段将温度保持在 50 摄氏度以下。