4-methylsulfonylbutan-1-ol

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: In toluene (5 ml) were dissolved t-butyl [[2-[[(4-chlorophenyl)sulfonyl]methyl]benzyl]oxy]diphenylsilane (350 mg, 0.654 mmol) and the 4-(methylsulfonyl)-1-butanol (200 mg, 1.31 mmol) obtained in Referential Example 3, followed by the addition of cyanomethylenetri-n-butylphosphorane (350 mg, 1.45 mmol). Under an argon atmosphere, the resulting mixture was heated under reflux for 14 hours. After the reaction mixture was allowed to cool down, cyanomethylenetri-n-butylphosphorane (300 mg, 1.24 mmol) was added thereto. Under an argon atmosphere, the resulting mixture was heated under reflux for 14 hours. The reaction mixture was then allowed to cool down. The residue obtained by concentrating the mixture under reduced pressure was subjected to flash silica gel chromatography, and the fraction obtained from the hexane:ethyl acetate=3:2 was concentrated under reduced pressure, whereby the title compound (175 mg, 0.261 mmol, 40%) was obtained as a pale yellowish brown oil.

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: In toluene (5 ml) were dissolved t-butyl [[2-[[(4-chlorophenyl)sulfonyl]methyl]benzyl]oxy]diphenylsilane (350 mg, 0.654 mmol) and the 4-(methylsulfonyl)-1-butanol (200 mg, 1.31 mmol) obtained in Referential Example 3, followed by the addition of cyanomethylenetri-n-butylphosphorane (350 mg, 1.45 mmol). Under an argon atmosphere, the resulting mixture was heated under reflux for 14 hours. After the reaction mixture was allowed to cool down, cyanomethylenetri-n-butylphosphorane (300 mg, 1.24 mmol) was added thereto. Under an argon atmosphere, the resulting mixture was heated under reflux for 14 hours. The reaction mixture was then allowed to cool down. The residue obtained by concentrating the mixture under reduced pressure was subjected to flash silica gel chromatography, and the fraction obtained from the hexane:ethyl acetate=3:2 was concentrated under reduced pressure, whereby the title compound (175 mg, 0.261 mmol, 40%) was obtained as a pale yellowish brown oil.

Conditions: temp:0.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 4-(Methylthio)butan-1-ol (721 mg, 6.0 mmol) was dissolved in methanol (15 mL) and cooled to 0° C. in an ice bath. 2KHSO5.KHSO4.K2SO4 (4057 mg, 6.60 mmol), dissolved in water (15 mL), was added dropwise over a 10 minute period. Upon completion of addition, the reaction mixture was removed from the ice bath and warmed to room temperature and stirred for one hour. The reaction mixture was diluted with water (15 mL) and extracted with ethyl acetate (50 mL). The aqueous layer was concentrated to dryness, and the residue was diluted with dichloromethane, stirred 30 minutes and filtered. The filtrate was concentrated to give the title compound as a clear oil (825 mg, 90%). was added dropwise over a 10 minute period Upon completion of addition the reaction mixture was removed from the ice bath warmed to room temperature The reaction mixture was diluted with water (15 mL) extracted with ethyl acetate (50 mL) The aqueous layer was concentrated to dryness the residue was diluted with dichloromethane stirred 30 minutes filtered The filtrate was concentrated

Conditions: temp:0.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 4-(Methylthio)butan-1-ol (721 mg, 6.0 mmol) was dissolved in methanol (15 mL) and cooled to 0° C. in an ice bath. 2KHSO5.KHSO4.K2SO4 (4057 mg, 6.60 mmol), dissolved in water (15 mL), was added dropwise over a 10 minute period. Upon completion of addition, the reaction mixture was removed from the ice bath and warmed to room temperature and stirred for one hour. The reaction mixture was diluted with water (15 mL) and extracted with ethyl acetate (50 mL). The aqueous layer was concentrated to dryness, and the residue was diluted with dichloromethane, stirred 30 minutes and filtered. The filtrate was concentrated to give the title compound as a clear oil (825 mg, 90%). was added dropwise over a 10 minute period Upon completion of addition the reaction mixture was removed from the ice bath warmed to room temperature The reaction mixture was diluted with water (15 mL) extracted with ethyl acetate (50 mL) The aqueous layer was concentrated to dryness the residue was diluted with dichloromethane stirred 30 minutes filtered The filtrate was concentrated

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: In toluene (5 ml) were dissolved t-butyl [[2-[[(4-chlorophenyl)sulfonyl]methyl]benzyl]oxy]diphenylsilane (350 mg, 0.654 mmol) and the 4-(methylsulfonyl)-1-butanol (200 mg, 1.31 mmol) obtained in Referential Example 3, followed by the addition of cyanomethylenetri-n-butylphosphorane (350 mg, 1.45 mmol). Under an argon atmosphere, the resulting mixture was heated under reflux for 14 hours. After the reaction mixture was allowed to cool down, cyanomethylenetri-n-butylphosphorane (300 mg, 1.24 mmol) was added thereto. Under an argon atmosphere, the resulting mixture was heated under reflux for 14 hours. The reaction mixture was then allowed to cool down. The residue obtained by concentrating the mixture under reduced pressure was subjected to flash silica gel chromatography, and the fraction obtained from the hexane:ethyl acetate=3:2 was concentrated under reduced pressure, whereby the title compound (175 mg, 0.261 mmol, 40%) was obtained as a pale yellowish brown oil.

Conditions: temp:0.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 4-(Methylthio)butan-1-ol (721 mg, 6.0 mmol) was dissolved in methanol (15 mL) and cooled to 0° C. in an ice bath. 2KHSO5.KHSO4.K2SO4 (4057 mg, 6.60 mmol), dissolved in water (15 mL), was added dropwise over a 10 minute period. Upon completion of addition, the reaction mixture was removed from the ice bath and warmed to room temperature and stirred for one hour. The reaction mixture was diluted with water (15 mL) and extracted with ethyl acetate (50 mL). The aqueous layer was concentrated to dryness, and the residue was diluted with dichloromethane, stirred 30 minutes and filtered. The filtrate was concentrated to give the title compound as a clear oil (825 mg, 90%). was added dropwise over a 10 minute period Upon completion of addition the reaction mixture was removed from the ice bath warmed to room temperature The reaction mixture was diluted with water (15 mL) extracted with ethyl acetate (50 mL) The aqueous layer was concentrated to dryness the residue was diluted with dichloromethane stirred 30 minutes filtered The filtrate was concentrated