Formic Acid → HCID 29920718, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of (S)-tert-butyl 3-methylpiperazine-1-carboxylate (50 g, 0.250 mol) in 500 mL of methanol was added formaldehyde (41.6 mL, 0.5 mol, 37% aqueous solution) and formic acid (33 mL, 0.874 mol) and the mixture was heated to 70° C. for 16 hours, then concentrated under reduced pressure. The resulting residue was taken up in EtOAc (500 mL), washed with 10% aqueous potassium carbonate, dried over sodium sulfate and concentrated under reduced pressure to give 54 g (100%) of the title compound.

Provenance & Evidence