Dimethyl Sulfoxide → 3-Bromo-4-(methanesulfonyl)benzaldehyde

Participants

Reaction Conditions

Reaction Steps

To a solution containing 0.5 g 3-bromo-4-fluorobenzaldehyde and 20 ml of DMSO was added 0.49 g methanesulfinic acid sodium salt with stirring at 90° C. The solution was stirred 6 hours at 90° C. and poured into water. Sodiumhydrogencarbonate was added and the product extract with ethyl acetate. The extract was evaporated to dryness in vacuo. The residue was triturated with 2-propanol, yield 0.69 g. 1H-NMR (DMSO-d6, 400 MHz): 3.52 (s, 3 H, CH3), 8.10-8.47 (m, 3 H, Ar), 10.01 (d, 1 H, CHO).

Provenance & Evidence