Bromine → alpha-Bromo-3-chloropropiophenone

Participants

Reaction Steps

Bromine (6.07 ml, 0.12 mol) was added to a solution of 3′-chloropropiophenone (20 g, 0.12 mol) in chloroform (250 ml) at room temperature. The reaction was followed by TLC in DCM. When all of the starting material was consumed the mixture was washed with a saturated solution of sodium bicarbonate. The organic phase was dried over magnesium sulphate, filtered and evaporated. Recrystallisation from chloroform gives the desired compound in 60% yield as a pale yellow solid (18 g, 73 mmol).

Provenance & Evidence