Diphenyl carbonate → Methyl 4-methylbenzoate

Participants

Reaction Steps

Into an autoclave made of SUS316 having an internal volume of 100 ml were charged the synthesized phenyl p-toluate 30 g (141 mmole), dimethyl carbonate 6.37 g (70.7 mmole) and titanium tetraisopropoxide 0.80 g (2.83 mmole). The pressure was elevated to 20 kg/cm2 with nitrogen, and the contents were then reacted for three hours at 180° C. After completing the reaction, the reaction mixture was analyzed by gas chromatography. As a result, the yield of methyl phenyl carbonate was 18%, and the yield of diphenyl carbonate was 15%. Furthermore, at the same time, methyl p-toluate was produced as a by-product with a yield of 33% (the yield is given in terms of phenyl p-toluate).

Provenance & Evidence