Among them, the transesterification of dimethyl oxalate (DMO) with phenol to diphenyl oxalate (DPO) followed by decarbonylation of DPO to DPC is a promising route.

• 本研究以DMO和苯酚为原料，通过酯交换反应合成用于制备DPC的甲基苯基草酸酯 (MPO)和草酸二苯酯 (DPO)。