反应详情

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 diethyl ether, 100 mL of water, and saturated aqueous sodium sulfate solution were added to the stirred reaction mixture under ice-cooling. The resulting mixture was concentrated under reduced pressure to remove acetone, and thereafter 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.

1. temperaturecooling
2. temperaturecooling
3. concentrationThe resulting mixture was concentrated under reduced pressure
4. customto remove acetone
5. addition300 mL of water and diethyl ether-hexane were added to the stirred residue under ice-
6. temperaturecooling
7. stirringThe mixture was stirred for 30 minutes
8. filtrationthe precipitate was collected by filtration
9. washwashed with water and diethyl ether-hexane