abstract |
The preparation of 2- chlorine-1,4-phenyl diamine by catalytic hydrogenation of 2-chlorine-4-nitroaniline is carried out on the platinum catalyst in the way that the reaction is realized in the medium of chlorinated solvent, to advantage o-dichlorobenzene, at the temperature between 50 and 120 degrees C and hydrogen pressure between 2 and 5 MPa. |