1,1'-Carbonyldiimidazole → HCID 86730133, compound

Participants

Reaction Steps

To a mixture of CDI (388 mg, 2.394 mmol) in THF (1.5 mL) was added slowly a solution of 4-(amino(phenyl)methyl)tetrahydro-2H-pyran-4-ol (451 mg, 2.176 mmol) in THF (3 mL). The mixture was stirred under argon for ˜5 hours. The mixture was diluted with saturated aqueous NaHCO3 solution and DCM. The separated aqueous layer was extracted with DCM (2×) and the combined organic layers were washed with 0.5N aqueous HCl solution and brine, dried over sodium sulfate, filtered off and concentrated under reduced pressure. The residue was purified by column chromatography [SiO2, 12 g, 0-100% heptane/ethyl acetate] providing 4-phenyl-1,8-dioxa-3-azaspiro[4.5]decan-2-one as a white solid. Yield: 330 mg. LCMS m/z 234.1 (M+H)+; Rt 0.52 min.

Provenance & Evidence