(1-benzyl-4-methylpiperidin-4-yl)methanol

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

実験手順: To a solution of (1-benzyl-4-methylpiperidin-4-yl)methanol (2.7 g, 12 mmol) in methanol (34 mL) was added ammonium formate (8.6 g, 135 mmol) followed by palladium on carbon (10% w/w, 3.6 g, 1.7 mmol). The reaction mixture was stirred for 18 hours under a balloon of hydrogen, then degassed, flushed with nitrogen, and filtered over a pad of celite. The solvent was removed in vacuo and the resulting residue was purified by flash chromatography (silica, 40 g, ISCO, 0-20% methanol in methylene chloride) to afford the title compound as a colorless oil, which was used in the next step without any further purification (1.2 g, 76%). degassed flushed with nitrogen filtered over a pad of celite The solvent was removed in vacuo the resulting residue was purified by flash chromatography (silica, 40 g, ISCO, 0-20% methanol in methylene chloride)

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

実験手順: A solution of tert-butyl 1-benzyl-4-methylpiperidine-4-carboxylate (4.7 g, 18 mmol) in diethyl ether (47 mL) was cooled at 0° C. and to this was added lithium tetrahydroaluminate (990 mg, 25 mmol) portion-wise. The reaction mixture was warmed to ambient temperature and stirred vigorously for 1 hour. The mixture was then cooled to 0° C. and a 1N solution of sodium hydroxide (6 mL) was added dropwise to the reaction mixture producing a white precipitate. The mixture was filtered and the solids were washed with ethyl acetate (100 mL). The combined filtrate was separated and the aqueous portion was extracted with ethyl acetate (2×50 mL). The combined organic portions were dried over sodium sulfate, filtered, concentrated in vacuo, and purified flash chromatography (silica, 80 g, ISCO, 45-100% ethyl acetate in heptane) to afford the title compound as a white solid, which was used in the next step without any further purification (2.7 g, 67%). The mixture was then cooled to 0° C. producing a white precipitate The mixture was filtered the solids were washed with ethyl acetate (100 mL) The combined filtrate was separated the aqueous portion was extracted with ethyl acetate (2×50 mL) The combined organic portions were dried over sodium sulfate filtered concentrated in vacuo purified flash chromatography (silica, 80 g, ISCO, 45-100% ethyl acetate in heptane)

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

実験手順: To a solution of (1-benzyl-4-methylpiperidin-4-yl)methanol (2.7 g, 12 mmol) in methanol (34 mL) was added ammonium formate (8.6 g, 135 mmol) followed by palladium on carbon (10% w/w, 3.6 g, 1.7 mmol). The reaction mixture was stirred for 18 hours under a balloon of hydrogen, then degassed, flushed with nitrogen, and filtered over a pad of celite. The solvent was removed in vacuo and the resulting residue was purified by flash chromatography (silica, 40 g, ISCO, 0-20% methanol in methylene chloride) to afford the title compound as a colorless oil, which was used in the next step without any further purification (1.2 g, 76%). degassed flushed with nitrogen filtered over a pad of celite The solvent was removed in vacuo the resulting residue was purified by flash chromatography (silica, 40 g, ISCO, 0-20% methanol in methylene chloride)

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

実験手順: A solution of tert-butyl 1-benzyl-4-methylpiperidine-4-carboxylate (4.7 g, 18 mmol) in diethyl ether (47 mL) was cooled at 0° C. and to this was added lithium tetrahydroaluminate (990 mg, 25 mmol) portion-wise. The reaction mixture was warmed to ambient temperature and stirred vigorously for 1 hour. The mixture was then cooled to 0° C. and a 1N solution of sodium hydroxide (6 mL) was added dropwise to the reaction mixture producing a white precipitate. The mixture was filtered and the solids were washed with ethyl acetate (100 mL). The combined filtrate was separated and the aqueous portion was extracted with ethyl acetate (2×50 mL). The combined organic portions were dried over sodium sulfate, filtered, concentrated in vacuo, and purified flash chromatography (silica, 80 g, ISCO, 45-100% ethyl acetate in heptane) to afford the title compound as a white solid, which was used in the next step without any further purification (2.7 g, 67%). The mixture was then cooled to 0° C. producing a white precipitate The mixture was filtered the solids were washed with ethyl acetate (100 mL) The combined filtrate was separated the aqueous portion was extracted with ethyl acetate (2×50 mL) The combined organic portions were dried over sodium sulfate filtered concentrated in vacuo purified flash chromatography (silica, 80 g, ISCO, 45-100% ethyl acetate in heptane)

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

実験手順: To a solution of (1-benzyl-4-methylpiperidin-4-yl)methanol (2.7 g, 12 mmol) in methanol (34 mL) was added ammonium formate (8.6 g, 135 mmol) followed by palladium on carbon (10% w/w, 3.6 g, 1.7 mmol). The reaction mixture was stirred for 18 hours under a balloon of hydrogen, then degassed, flushed with nitrogen, and filtered over a pad of celite. The solvent was removed in vacuo and the resulting residue was purified by flash chromatography (silica, 40 g, ISCO, 0-20% methanol in methylene chloride) to afford the title compound as a colorless oil, which was used in the next step without any further purification (1.2 g, 76%). degassed flushed with nitrogen filtered over a pad of celite The solvent was removed in vacuo the resulting residue was purified by flash chromatography (silica, 40 g, ISCO, 0-20% methanol in methylene chloride)

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

実験手順: A solution of tert-butyl 1-benzyl-4-methylpiperidine-4-carboxylate (4.7 g, 18 mmol) in diethyl ether (47 mL) was cooled at 0° C. and to this was added lithium tetrahydroaluminate (990 mg, 25 mmol) portion-wise. The reaction mixture was warmed to ambient temperature and stirred vigorously for 1 hour. The mixture was then cooled to 0° C. and a 1N solution of sodium hydroxide (6 mL) was added dropwise to the reaction mixture producing a white precipitate. The mixture was filtered and the solids were washed with ethyl acetate (100 mL). The combined filtrate was separated and the aqueous portion was extracted with ethyl acetate (2×50 mL). The combined organic portions were dried over sodium sulfate, filtered, concentrated in vacuo, and purified flash chromatography (silica, 80 g, ISCO, 45-100% ethyl acetate in heptane) to afford the title compound as a white solid, which was used in the next step without any further purification (2.7 g, 67%). The mixture was then cooled to 0° C. producing a white precipitate The mixture was filtered the solids were washed with ethyl acetate (100 mL) The combined filtrate was separated the aqueous portion was extracted with ethyl acetate (2×50 mL) The combined organic portions were dried over sodium sulfate filtered concentrated in vacuo purified flash chromatography (silica, 80 g, ISCO, 45-100% ethyl acetate in heptane)