Hydroxylamine → HCID 57554625, compound

Participants

Reaction Conditions

Reaction Steps

4-((7S)-3-methyl-2,4-dioxo-1,3-diazaspiro[4.4]nonan-7-yl)benzonitrile (0.88 g, 3.27 mmol) was suspended in ethanol (20 ml). To this was added hydroxylamine (0.240 ml, 3.59 mmol) as 50% weight solution in water, and the reaction was heated to 60° C. under an atmosphere of nitrogen for about 20 hours. The reaction mixture was left to cool down to ambient temperature. Solvent was partially removed. The resulting white precipitate was filtered, rinsed with cold ethanol and vacuum-dried to afford (Z)-N′-hydroxy-4-{(7S)-3-methyl-2,4-dioxo-1,3-diazaspiro[4.4]nonan-7-yl}benzimidamide as light brown solid (1.12 g, 3.20 mmol).

Provenance & Evidence