Sulfuric Acid → HCID 131718400, compound
Reaction equation
[S:1](=[O:5])(=[O:4])([OH:3])[OH:2].[NH2:6][C:7](=[N:9][C:10]1[S:11][CH:12]=[C:13]([C:15]2[O:16][C:17]([CH2:20][NH:21][C:22]([NH2:24])=[O:23])=[CH:18][CH:19]=2)[N:14]=1)[NH2:8]>CO>[S:1]([OH:5])([OH:4])(=[O:3])=[O:2].[NH2:6][C:7](=[N:9][C:10]1[S:11][CH:12]=[C:13]([C:15]2[O:16][C:17]([CH2:20][NH:21][C:22]([NH2:24])=[O:23])=[CH:18][CH:19]=2)[N:14]=1)[NH2:8].[NH2:6][C:7](=[N:9][C:10]1[S:11][CH:12]=[C:13]([C:15]2[O:16][C:17]([CH2:20][NH:21][C:22]([NH2:24])=[O:23])=[CH:18][CH:19]=2)[N:14]=1)[NH2:8]Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Procedure
A solution of conc. sulfuric acid (0.7 ml) in methanol (10 ml) was added to a mixture of 2-(diaminomethyleneamino)-4-(5-ureidomethylfuran-2-yl)thiazole (4.0 g) in methanol (60 ml) and the mixture was stirred for an hour at ambient temperature. The isolated precipitate was collected by filtration and the precipitate was recrystallized from an aqueous ethanol to give 2-(diaminomethyleneamino)-4-(5-ureidomethylfuran-2-yl)thiazole hemisulfate (4.26 g).
Workup
- filtrationThe isolated precipitate was collected by filtration
- customthe precipitate was recrystallized from an aqueous ethanol
Sources & evidence
- ORD record
- ord-406bb441ccb14fce82874e9b486dfdb3
- Source dataset
- uspto-grants-1994_05
- Patent number
- US05308857
Reaction notes
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