Hydroxyamine hydrochloride → HCID 178463822, compound

Participants

Reaction Steps

To a cold (0° C.) solution of potassium tert.-butylate (494 mg, 4.40 mmol) in methanol (10 mL), hydroxylamine hydrochloride (262 mg, 3.73 mmol) is added. The mixture is stirred for 30 min before 6-diethylamino-4-methyl-pyridine-2-carbonitrile (238 mg, 1.26 mmol) is added. Stirring is continued at rt for 18 h before the solvent is evaporated. The residue is dissolved in 1 N aq. HCl. The solution is extracted with EA. The pH of the aq. phase is adjusted to pH ˜9 by adding sat. aq. NaHCO3. The mixture is extracted with EA and the org. extract is dried over MgSO4, filtered, concentrated and dried to give 6-diethylamino-N-hydroxy-4-methyl-pyridine-2-carboxamidine (241 mg) as a yellow oil; LC-MS: tR=0.69 min, [M+1]+=223.05.

Provenance & Evidence