Carbon Dioxide → 4-Hydroxybenzoic Acid

Participants

Reaction Steps

A pressure vessel was charged with 4.72 g of phenol, 24.10 g of potassium 3,5-xylenolate being in a dry powder form and 50 ml of NeoSK 1400. With stirring, reaction was carried out at a carbon dioxide pressure of 7 kg/cm2 (G) and at 300° C. for one hour. An analysis of the reaction mixture after conversion to acid form showed a para-hydroxybenzoic acid yield of 83.8% on the basis of phenol.

Provenance & Evidence