Water → 5-cyano-N-[2-(2'-methanesulfonyl-3-methoxymethoxybiphenyl-4-yl)ethyl]-2-methoxybenzenesulfonamide

Participants

Reaction Steps

To a stirred suspension of 26.44 g of 5-cyano-2-methoxy-N-[2-(3-methoxymethoxy-2′-methylthiobiphenyl-4-yl)ethyl]-benzenesulfonamide and 35.6 g of sodium bicarbonate in a mixture of 530 mL of acetone and 106 mL of water was added two portions of 81.5 g of OXONE (trademark) every 15 minutes under ice-cooling. The mixture was stirred under the same condition for 3 hours, and 100 mL of diethylether, 100 mL of water, and saturated aqueous sodium sulfate solution were added to the stirred reaction mixture under ice-cooling. The obtained mixture was concentrated under reduced pressure to remove acetone, and 300 mL of water, and diethyl ether-hexane were added to the stirred residue under ice-cooling. The mixture was stirred for 30 minutes, and the precipitate was collected by filtration, washed with water and diethyl ether-hexane to give 27.1 g of 5-cyano-N-[2-(2′-methanesulfonyl-3-methoxymethoxybiphenyl-4-yl)ethyl]-2-methoxybenzenesulfonamide as a white powder.

Provenance & Evidence