N-bromobutanimide → 4-bromo-5-(4-methoxyphenyl)-2,2-dimethylfuran-3(2H)-one

Participants

Reaction Steps

To a stirred solution of 5-(4-methoxyphenyl)-2,2-dimethylfuran-3(2H)-one (5.5 g, 0.025 mol) in CHCl3 (100 mL) was added NBS (6.733 g, 0.038 mol) portion wise at RT. The reaction mixture was stirred for 2 h at RT. The reaction mixture was diluted with DCM (100 mL), washed with water (50 mL), brine (50 mL), dried over Na2SO4, filtered and then concentrated in vacuo to obtain the crude product. The crude material was purified via by flash column chromatography using 25% ethyl acetate in hexane and silica gel (230-400 Mesh) to afford 4-bromo-5-(4-methoxyphenyl)-2,2-dimethylfuran-3(2H)-one (4.6 g, 65%) as a solid.

Provenance & Evidence