3-Cyanopyridine → N-Hydroxynicotinimidamide
Reaction equation
Cl.[NH2:2][OH:3].C(=O)([O-])[O-].[Na+].[Na+].[C:10]([C:12]1[CH:13]=[N:14][CH:15]=[CH:16][CH:17]=1)#[N:11].O>CO>[OH:3][N:2]=[C:10]([C:12]1[CH:13]=[N:14][CH:15]=[CH:16][CH:17]=1)[NH2:11]Participants
6
Reactant 4
Product 1
Reagents, catalysts & solvents 1
Conditions
- Temperature
- 100 °C
Procedure
Hydroxylamine hydrochloride (1.3 g) and sodium carbonate (2.0 g) were added to a mixed solution of 3-cyanopyridine in methanol (10 ml)/water (10 ml) and the mixture was stirred at 100° C. for 2.5 hours. After distilling off the solvent under reduced pressure, water was added to the residue and extracted with tetrahydrofuran, and the organic layer was washed with saturated brine. The organic layer was dried over magnesium sulfate and the solvent was distilled off under reduced pressure to obtain N′-hydroxypyridine-3-carboximidamide (1.3 g) as a colorless oily substance.
Workup
- distillationAfter distilling off the solvent under reduced pressure, water
- additionwas added to the residue
- extractionextracted with tetrahydrofuran
- washthe organic layer was washed with saturated brine
- dry with materialThe organic layer was dried over magnesium sulfate
- distillationthe solvent was distilled off under reduced pressure
Sources & evidence
- ORD record
- ord-6b8aff50edd948fd96ba14cd6b810db4
- Source dataset
- uspto-grants-2014_01
- Patent number
- US08637557B2
Reaction notes
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