Hydrochloric Acid → HCID 20204037, compound

Participants

Reaction Steps

A solution of ethyl[N-(p-(N-benzyloxycarbonylamino)benzyl)-N-(methoxycarbonylethyl)carbamoyl]acetate (967 mg) in benzene (15 ml) is added dropwise to a solution of sodium ethoxide (prepared from sodium (60 mg) and ethanol (2 ml)) at room temperature. The mixture is stirred at the same temperature for 30 minutes. The mixture is poured into water. The aqueous solution is neutralized with 10% HCl, and extracted with ethyl acetate. The extract is washed with a saturated sodium chloride solution, dried and then distilled to remove the solvent to give ethyl 1-(p-(N-benzyloxycarbonylamino)-benzyl)-2,4-dioxopiperidine-3-carboxylate (841 mg, 93.5%) as colorless oil.

Provenance & Evidence