Toluene → 1-(4-Bromo-3-fluorophenyl)-2,2-diethoxyethanone

Participants

Reaction Steps

To a solution of 1-(4-bromo-3-fluorophenyl)-2,2-dihydroxyethanone (3.5 g, 0.014 mol) in toluene (30 mL) was added ethyl orthoformate (5.8 mL, 0.035 mol) and p-toluenesulfonic acid (100 mg). The reaction was refluxed for 4 h. After cooled to RT, the mixture was diluted with ethyl acetate, washed with saturated NaHCO3 solution, water, and brine, dried over MgSO4, filtered and concentrated to give the product (4.0 g, 93%) which was used in the next step without further purification.

Provenance & Evidence