反应 #114029
相关文献 (1)
openreactiondata ↗doi:10.6084/m9.figshare.5104873.v1; patent:US09434690B2
反应条件: temp:60.01; pressure:0.00; stir:; See reaction.notes.procedure_details.
实验步骤: At room temperature, a solution of 500 mg (3.78 mmol) of tetrahydrothiopyran-4-ylmethanol in 10 ml of methanol was added with cooling to a solution of 1.86 g (8.70 mmol) of sodium periodate in 18 ml of water. The mixture was stirred at 60° C. for another 1 h, and methanol was then distilled off under reduced pressure and the resulting precipitate was filtered off with suction. The aqueous phase that remained was extracted twice with 10 ml of diethyl ether, twice with 10 ml of dichloromethane, twice with 10 ml of dichloromethane/methanol (1:1, v/v) and, after addition of 5 ml of water, twice with 10 ml of ethyl acetate. The combined organic phases were dried over sodium sulphate and filtered, and the solvent was removed under reduced pressure. The aqueous phase was extracted four more times with 20 ml of 2-methyltetrahydrofuran. The combined organic phases were dried over sodium sulphate and filtered, and the solvent was removed under reduced pressure. Combined yield: 406 mg (65% of theory) methanol was then distilled off under reduced pressure the resulting precipitate was filtered off with suction The aqueous phase that remained was extracted twice with 10 ml of diethyl ether, twice with 10 ml of dichloromethane, twice with 10 ml of dichloromethane/methanol (1:1 v/v) and, after addition of 5 ml of water The combined organic phases were dried over sodium sulphate filtered the solvent was removed under reduced pressure The aqueous phase was extracted four more times with 20 ml of 2-methyltetrahydrofuran The combined organic phases were dried over sodium sulphate filtered the solvent was removed under reduced pressure
来源 ID: ord-658bfb522468462189e71b811dfc540d