N-(2-Methyl-5-nitrophenyl)-4-(pyridin-3-yl)-1,3-thiazol-2-amine → 6-methyl-N1-(4-(pyridin-3-yl)thiazol-2-yl)benzene-1,3-diamine

Participants

Reaction Steps

In a reactor, a mixture of (2-methyl-5-nitro-phenyl)-(4-pyridin-3-yl-thiazol-2-yl)-amine (40 kg, 128.06 mol), Raney Nickel (2.7 kg, 46.00 mol) and methanol (600 L), was warmed to 40-45° C. and hydrogenated under hydrogen pressure (5 kg/cm2) for 2 hours. The reaction mixture was filtered and concentrated. Water was added to the residue under stirring. The product was then filtered and dried in a tray drier at 45-50° C.

Provenance & Evidence