Piperazin-2-one → HCID 18971567, compound

Participants

Reaction Steps

The mixture of piperazin-2-one (1.11 g, 11.1 mmol, Aldrich), 4-oxo-piperidine-1-carboxylic acid tert-butyl ester (2.43 g, 12.21 mmol, Aldrich) and sodium triacetoxyborohydride (2.59 g, 12.21 mmol, Aldrich) in dichloromethane (50 mL) was stirred at ambient temperature for 2 h. After the aqueous work up, the crude residue was purified by flash column chromatography (silica gel, Isco system, eluting with ethyl acetate and hexane) to give 4-(3-oxo-piperazin-1-yl)-piperidine-1-carboxylic acid tert-butyl ester (1.78 g).

Provenance & Evidence