Methanol → HCID 18995700, compound

Participants

Reaction Steps

1-Methyl-4-piperidone (5 g, 44.2 mmol) and methoxyamine hydrochloride (3.69 g, 44.2 mmol) were taken into 25 mL of methanol and stirred at room temperature for 2 days. The reaction mixture was evaporated in vacuo to afford a solid residue. The residue was dissolved in water, made basic with solid potassium carbonate, and extracted with dichloromethane (3×100 mL). The combined extracts were dried over anhydrous sodium sulfate and evaporated to give a clear, yellow liquid that was purified on silica gel, eluting with dichloromethane-methanol (95:5)to afford 2.55 g of the desired product. Treatment with ethereal hydrogen chloride gave the hydrochloride salt, 2.99 g, mp 145°-147° C.

Provenance & Evidence