[(3R)-4-benzylmorpholin-3-yl]methanol

反応条件: temp:70.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: A solution of (3R)-4-benzyl-3-hydroxymethylmorpholine (0.94 g) in tetrahydrofuran (10 ml) was added dropwise to a suspension of sodium hydride (60% oil suspension, 0.22 g) in tetrahydrofuran (20 ml) at room temperature under nitrogen atmosphere and the whole was stirred at 70° C. for 1 hour. After cooling, methyl iodide (0.31 ml) was added thereto and the mixture was stirred at 40° C. for 1 hour. After cooling, the mixture was poured into ice water, and extracted with ethyl acetate. The extract was dried over magnesium sulfate and evaporated in vacuo. The residue was purified by column chromatography on silica gel with a mixture of ethyl acetate and n-hexane (3:7) as an eluent to give (3R)-4-benzyl-3-methoxymethylmorpholine (0.88 g) as an oil. After cooling the mixture was stirred at 40° C. for 1 hour After cooling extracted with ethyl acetate The extract was dried over magnesium sulfate evaporated in vacuo The residue was purified by column chromatography on silica gel with a mixture of ethyl acetate and n-hexane (3:7) as an eluent

反応条件: temp:70.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: A solution of (3R)-4-benzyl-3-hydroxymethylmorpholine (0.94 g) in tetrahydrofuran (10 ml) was added dropwise to a suspension of sodium hydride (60% oil suspension, 0.22 g) in tetrahydrofuran (20 ml) at room temperature under nitrogen atmosphere and the whole was stirred at 70° C. for 1 hour. After cooling, methyl iodide (0.31 ml) was added thereto and the mixture was stirred at 40° C. for 1 hour. After cooling, the mixture was poured into ice water, and extracted with ethyl acetate. The extract was dried over magnesium sulfate and evaporated in vacuo. The residue was purified by column chromatography on silica gel with a mixture of ethyl acetate and n-hexane (3:7) as an eluent to give (3R)-4-benzyl-3-methoxymethylmorpholine (0.88 g) as an oil. After cooling the mixture was stirred at 40° C. for 1 hour After cooling extracted with ethyl acetate The extract was dried over magnesium sulfate evaporated in vacuo The residue was purified by column chromatography on silica gel with a mixture of ethyl acetate and n-hexane (3:7) as an eluent

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: (3R)-4-Benzylmorpholine-3-methanol (1.04 g, 5.0 mmol), t-butyldimethylchlorosilane (0.83 g, 5.5 mol), and imidazole (0.41 g, 6.0 mmol) were allowed to react in 5 mL of dichloromethane at room temperature overnight. The reaction product was purified by silica gel column chromatography (hexane:ethyl acetate=5:1) to obtain (3S)-3-(t-butyldimethylsilyloxy)methyl-4-benzylmorpholine (1.53 g, 95%) as a colorless oil. The reaction product was purified by silica gel column chromatography (hexane:ethyl acetate=5:1)

反応条件: temp:70.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: A solution of (3R)-4-benzyl-3-hydroxymethylmorpholine (0.94 g) in tetrahydrofuran (10 ml) was added dropwise to a suspension of sodium hydride (60% oil suspension, 0.22 g) in tetrahydrofuran (20 ml) at room temperature under nitrogen atmosphere and the whole was stirred at 70° C. for 1 hour. After cooling, methyl iodide (0.31 ml) was added thereto and the mixture was stirred at 40° C. for 1 hour. After cooling, the mixture was poured into ice water, and extracted with ethyl acetate. The extract was dried over magnesium sulfate and evaporated in vacuo. The residue was purified by column chromatography on silica gel with a mixture of ethyl acetate and n-hexane (3:7) as an eluent to give (3R)-4-benzyl-3-methoxymethylmorpholine (0.88 g) as an oil. After cooling the mixture was stirred at 40° C. for 1 hour After cooling extracted with ethyl acetate The extract was dried over magnesium sulfate evaporated in vacuo The residue was purified by column chromatography on silica gel with a mixture of ethyl acetate and n-hexane (3:7) as an eluent