Sodium Bicarbonate → HCID 68972825, compound

Participants

Reaction Steps

N-Boc pyrroline (270 mg; 1.60 mmol), chloro oxime 2f (470 mg; 3.00 mmol) and sodium bicarbonate (760 mg; 9.04 mmol) in isopropanol (10 mL) were heated at 40° C. overnight. An additional portion of chloro oxime and sodium bicarbonate was added and heating continued for 20 hours. After cooling, the volatiles were evaporated. The residue was dissolved in ethyl acetate (50 mL), and washed with water (50 mL). The organic layer was dried (MgSO4), filtered and evaporated. Cycloadduct 3f was isolated as a beige powder after chromatography with 70% ethyl acetate/hexanes.

Provenance & Evidence