[CH:1]([NH:3][C:4]1[CH:9]=[CH:8][CH:7]=[C:6]([N+:10]([O-:12])=[O:11])[CH:5]=1)=[O:2].C(=O)([O-])[O-].[K+].[K+].Br[CH:20]([C:22](=[O:24])[CH3:23])[CH3:21]>CN(C)C=O.C(OCC)(=O)C>[CH3:21][CH:20]([N:3]([C:4]1[CH:9]=[CH:8][CH:7]=[C:6]([N+:10]([O-:12])=[O:11])[CH:5]=1)[CH:1]=[O:2])[C:22](=[O:24])[CH3:23]To a suspension of N-formyl-3-nitroaniline (831 mg) and potassium carbonate (830 mg) in N,N-dimethylformamide (5 ml) was added 2-bromo-3-butanone (906 mg), and the mixture was stirred for 72 hours. The mixture was diluted with ethyl acetate and washed with water and brine. The mixture was dried over magnesium sulfate and evaporated to give N-(1-methyl-2-oxo-propyl)-N-(3-nitrophenyl)formamide (1.18 g, 100%).
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