Bromine → HCID 68961434, compound

Participants

Reaction Steps

To a solution of (R)-2-bromomethyl-5-fluoro-2,3-dihydro-benzofuran (3.20 g, 14 mmol) in acetic acid was added bromine (2.2 ml, 42 mmol) and the reaction mixture was allowed to stir at room temperature for 12 h. The solvent was removed in vacuo and the residue dissolved in dichloromethane and washed with saturated aqueous sodium sulfite. The solvent was removed in vacuo and purification by flash column chromatography (silica, ethyl acetate:hexanes 1:19) afforded 3.16 g (74%) of as a light yellow oil. HRMS EI m/e 307.8846 (M)+, Calc'd. 307.8848. [α]D25=+24.8 (c 1% in methanol).

Provenance & Evidence