Methylamine → 4-(Methylamino)-3-nitrophenyl phenyl ketone

Reaction equation

Cl[C:2]1[CH:15]=[CH:14][C:5]([C:6]([C:8]2[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=2)=[O:7])=[CH:4][C:3]=1[N+:16]([O-:18])=[O:17].[CH3:19][NH2:20].S1(CCCC1)(=O)=O>CO>[CH3:19][NH:20][C:2]1[CH:15]=[CH:14][C:5]([C:6]([C:8]2[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=2)=[O:7])=[CH:4][C:3]=1[N+:16]([O-:18])=[O:17]

Participants

Procedure

11 g of 4-chloro-3-nitro-benzophenone, 20 g of methylamine, 153.4 g of methanol and 27.5 g of sulpholane are warmed to 125° for 15 hours in a closed vessel. The reaction solution is evaporated to dryness, the residue is boiled thoroughly with 400 ml of 2 N hydrochloric acid for 20 minutes and the precipitate is filtered off, washed with water and dissolved in methylene chloride. After drying over sodium sulphate and evaporating, 4-methylamino-3-nitro-benzophenone with a melting point of 198°-201° is obtained.