反应详情

温度

23 °C

To a solution of phenyl-{3-styryl-1-[2-(trimethyl-silanyl)-ethoxymethyl]-1H-indazol-6-yl}-methanol (68 mg, 0.15 mmol) in dichloromethane (3 mL) at 23° C. under an atmosphere of argon was added periodinane (Dess-Martin reagent) (190 mg, 0.45 mmol). The resulting mixture was stirred at 23° C. for 1 hour. The solution was then diluted with hexane (3 mL) then filtered through Celite and concentrated under reduced pressure to a solid. The crude mixture was purified by silica gel chromatography (eluting with hexane:EtOAc 9:1) to give phenyl-{3-styryl-1-[2-(trimethyl-silanyl)-ethoxymethyl]-1H-indazol-6-yl}-methanone (54 mg, 79% yield). Rf sm=0.41, Rf p=0.63 (7:3 hexane:EtOAc); FTIR (thin film) 3059, 2952, 2894, 1659, 1474, 1448, 1307, 1249, 1078, 836, 649 cm−1. MS (ESI) [M+H]/z Calc'd 455, found 455.

1. filtrationthen filtered through Celite
2. concentrationconcentrated under reduced pressure to a solid
3. customThe crude mixture was purified by silica gel chromatography (eluting with hexane:EtOAc 9:1)