N-bromobutanimide → HCID 66581757, compound

Participants

Reaction Steps

To a mixture of 4 (0.6 g, 2.13 mmol) and N-bromosuccinimide (0.456 g, 2.56 mmol) was added DMF (15 mL) and stirred at ambient temperature for 3-4 h. The solution was partitioned between ethyl acetate (50 mL) and 10% Na2S2O3 (40 mL). Organic layer was separated, washed with brine (3×50 mL), dried (anhydrous Na2SO4) and concentrated under reduced pressure. The crude material was purified by flash chromatography over silica gel (70% ethyl acetate-dichloromethane) to give pure 5.

Provenance & Evidence