Hydrochloric Acid → Aniline

Participants

Reaction Steps

Into a 100 ml capacity SUS 316 stainless autoclave were fed the above catalyst (61.9 mg) (0.020 mmol in terms of Pd), aniline (0.931 g, 0.010 mol), nitrobenzene (1.23 g, 0.010 mol), ethanol (4.61 g, 0.10 mol), toluene (10.6 g, 0.11 mol) and 35% hydrochloric acid aqueous solution (0.071 g, HCl=0.68 mmol, H2O=0.067 mmol), followed by introducing CO gas up to 28 Kg/cm2 at room temperature without purging the air inside the system, reacting them at a reaction temperature of 190° C. for 3 hours, cooling the reaction mixture down to room temperature after the reaction, returning the pressure inside the system to the atmospheric pressure and analyzing the reaction product according to gas chromatography. As a result, ethyl N-phenylcarbamate (NPU) (2.97 g) was formed (NPU yield: 90%), and aniline (0.093 g, 0.001 mol) and nitrobenzene (0.123 g, 0.001 mol) remained unreacted.

Provenance & Evidence