2,4,5,6(1H,3H)-Pyrimidinetetrone, monohydrate → HCID 56633917, compound
Reaction equation
[CH3:1][O:2][C:3]1[CH:8]=[CH:7][C:6]([NH:9][C:10]2[C:11]([NH2:16])=[CH:12][CH:13]=[CH:14][CH:15]=2)=[CH:5][CH:4]=1.O.N1C(=O)[C:24](=O)[C:22](=[O:23])NC1=O>C(O)C.O>[CH3:1][O:2][C:3]1[CH:4]=[CH:5][C:6]([N:9]2[C:10]3[C:11](=[CH:12][CH:13]=[CH:14][CH:15]=3)[N:16]=[CH:24][C:22]2=[O:23])=[CH:7][CH:8]=1Participants
5
Reactant 2
Product 1
Reagents, catalysts & solvents 2
Procedure
To a solution of N-(4-methoxyphenyl)benzene-1,2-diamine (9.0 g) in ethanol (150 ml) was added a solution of alloxan monohydrate (6.7 g) in water (150 ml) and the mixture was stirred for 30 minutes. The precipitate was filtered off and recrystallised from glacial acetic acid giving the title compound mp 236°-238° C.
Workup
- filtrationThe precipitate was filtered off
- customrecrystallised from glacial acetic acid giving the title compound mp 236°-238° C.
Sources & evidence
- ORD record
- ord-62625e2fe9614868958e51327dbb292d
- Source dataset
- uspto-grants-1981_10
- Patent number
- US04296114
Reaction notes
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