Boron tribromide → HCID 22125759, compound

Participants

Reaction Conditions

Reaction Steps

The product from Example 3 (0.28 g) 3 was slurried in dichoromethane (15 ml), cooled to -20° C. and boron tribromide (0.4 ml) added under nitrogen. The reaction mixture was allowed to warm up to room temperature and then refluxed for four hours. The mixture was poured into ice-water and extracted to ethyl acetate. The product was purified by column chromatography using toluene-ethyl acetate-acetic acid 8:1:1 as the eluent. Yield: 21 mg, melting point 178-184° C.

Provenance & Evidence