Nitric Acid → HCID 10707115, compound

Reaction equation

[Cl:1][C:2]1[CH:3]=[C:4]2[C:9](=[CH:10][C:11]=1[CH2:12][CH3:13])[NH:8][C:7](=[O:14])[C:6](=[O:15])[NH:5]2.[N+:16]([O-:19])([OH:18])=[O:17]>>[Cl:1][C:2]1[C:3]([N+:16]([O-:18])=[O:17])=[C:4]2[C:9](=[CH:10][C:11]=1[CH2:12][CH3:13])[NH:8][C:7](=[O:14])[C:6](=[O:15])[NH:5]2.[Cl:1][C:2]1[CH:3]=[C:4]2[C:9]([NH:8][C:7](=[O:14])[C:6](=[O:15])[NH:5]2)=[C:10]([N+:16]([O-:19])=[O:17])[C:11]=1[CH2:12][CH3:13]

Participants

Reactant 2

HCID 944Nitric Acid

HCID 10823051HCID 10823051, compound

Product 2

HCID 10683434HCID 10683434, compound

HCID 10707115HCID 10707115, compoundYield 91%

Procedure

1,4-Dihydro-6-chloro-7-ethylquinoxalin-2,3-dione (2.34 g, 10.4 mmol) was added in small portions over 10 minutes to vigorously stirred concentrated nitric acid (20 ml) at room temperature. The mixture was then heated at 40° C. for 12h, cooled, and poured into ice water. The yellow solid which formed was filtered off, washed with water, and dried to give 1,4-dihydro-6-chloro-7-ethyl-5-nitroquinoxalin-2,3-dione and 1,4-dihydro-7-chloro-6-ethyl-5-nitroquinoxalin-2,3-dione (2.55 g, 91%), as a mixture (1.7:1 ratio).