Study on the synthesis of diphenyl carbonate in homogeneous catalysis by dibutyltin dilaurate

Diphenyl carbonate(DPC) was synthesized by transesterification of dimethyl carbonate(DMC) with phenol in the presence of dibutyltin dilaurate catalyst under reactive distillation condition. At atmospheric pressure, n(PhOH)∶n(DMC)=3∶1, n(PhOH)∶n(catalyst)=1∶0.012, at temprature of 145 ℃ and with the reaction time being 10 h, the total coversion rate of DMC was (32.04%),the yield of DPC 18.00% , and the selectivity of PDC 56.18%. No anisol was observed in the product mixture.