4-Nitrobenzoyl chloride → 4-Nitro-N-(4-(5-oxo-4,5-dihydropyrazin-2-yl)phenyl)benzamide
Reaction equation
[NH2:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[N:9]=[CH:10][C:11](=[O:14])[NH:12][CH:13]=2)=[CH:4][CH:3]=1.[N+:15]([C:18]1[CH:26]=[CH:25][C:21]([C:22](Cl)=[O:23])=[CH:20][CH:19]=1)([O-:17])=[O:16]>[OH-].[Na+]>[N+:15]([C:18]1[CH:19]=[CH:20][C:21]([C:22]([NH:1][C:2]2[CH:3]=[CH:4][C:5]([C:8]3[N:9]=[CH:10][C:11](=[O:14])[NH:12][CH:13]=3)=[CH:6][CH:7]=2)=[O:23])=[CH:25][CH:26]=1)([O-:17])=[O:16]Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Procedure
A solution of 5-(4-aminophenyl)-2(1H)-pyrazinone (1.7 g) in sodium hydroxide was reacted with 4-nitrobenzoyl chloride (1.8 g) in a manner similar to that described in Example 9 to give 5-[4-(4-nitrobenzamido)phenyl]-2(1H)-pyrazinone (1.5 g, m.p. 298°-300° C.).