N-benzyl-N-methylaniline

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:80.01; pressure:0.00; stir:

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:0.00; pressure:0.00; stir:

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

実験手順: The general procedure under argon was followed using copper(I) iodide (19 mg, 0.10 mmol), K3PO4 (425 mg, 2.00 mmol), N-methylbenzylamine (155 μL, 1.20 mmol), iodobenzene (112 μL, 1.00 mmol), ethylene glycol (111 μL, 2.00 mmol) and 1-butanol (1.0 mL) at 90° C. Column chromatography using a solvent mixture (hexane/ethyl acetate=20/1, Rf=0.5) afforded N-methyl-N-phenylbenzylamine (146 mg, 74% isolated yield) as colorless liquid. The spectral data (1H NMR) matched with the literature references and GC analysis indicated >95% purity. See Brenner, E.; Schneider, R.; Fort, Y. Tetrahedron 1999, 55, 12829-12842. at 90° C

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

実験手順: The general procedure under argon was followed using copper(I) iodide (19 mg, 0.10 mmol), K3PO4 (425 mg, 2.00 mmol), N-methylbenzylamine (155 μL, 1.20 mmol), iodobenzene (112 μL, 1.00 mmol), ethylene glycol (111 μL, 2.00 mmol) and 1-butanol (1.0 mL) at 90° C. Column chromatography using a solvent mixture (hexane/ethyl acetate=20/1, Rf=0.5) afforded N-methyl-N-phenylbenzylamine (146 mg, 74% isolated yield) as colorless liquid. The spectral data (1H NMR) matched with the literature references and GC analysis indicated >95% purity. See Brenner, E.; Schneider, R.; Fort, Y. Tetrahedron 1999, 55, 12829-12842. at 90° C

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

実験手順: N-benzyl-N-phenyl-N-methylamine (4.41 g, 0.0224 mol) was dissolved in anhydrous dichloromethane (150 mL) and 2,4,4,6-tetrabromocyclohexadiene-1-one (9.16 g, 0.0224 mol) was added in 10 equal portions over a 30 min. period. Stirring was continued at ambient temperature for 20 hours. The organic phase was successively washed with 0.5N solution of sodium hydroxide in water (100 mL), 1N solution of sodium hydroxide in water (100 mL), water (120 mL) and brine (120 mL). The organic phase was dried with magnesium sulfate and concentrated under reduced pressure. The residue was purified by flash chromatography on silica using ethyl acetate/n-heptane (1:99) as mobile phase to yield N-benzyl-N-(4-bromophenyl)-N-methylamine (3.52 g, 0.0127 mol) as a colorless oil. The organic phase was successively washed with 0.5N solution of sodium hydroxide in water (100 mL), 1N solution of sodium hydroxide in water (100 mL), water (120 mL) and brine (120 mL) The organic phase was dried with magnesium sulfate concentrated under reduced pressure The residue was purified by flash chromatography on silica

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

実験手順: 60% dispersion of sodium hydride in mineral oil (2.37 g, 0.0592 mol) was added to a solution of N-phenyl-N-benzylamine (10.33 g, 0.0564 mol) in anhydrous N,N-dimethylformamide (200 mL) at 0° C. The reaction mixture was warmed up to ambient temperature and stirred for 45 min. Iodomethane (7.99 g, 0.0564 mol) was added dropwise and the stirring at ambient temperature was continued under an atmosphere of nitrogen for 20 hours. The solvent was removed under reduced pressure and the residue partitioned between ethyl acetate (250 mL) and water (200 mL). The organic phase was dried with magnesium sulfate and concentrated under reduced pressure. The residue was purified by flash chromatography on silica using ethyl acetate/n-heptane (2:98) as mobile phase to yield N-benzyl-N-methyl-N-phenylamine (4.4 g, 0.0223 mol) as a yellow oil. the stirring at ambient temperature was continued under an atmosphere of nitrogen for 20 hours The solvent was removed under reduced pressure the residue partitioned between ethyl acetate (250 mL) and water (200 mL) The organic phase was dried with magnesium sulfate concentrated under reduced pressure The residue was purified by flash chromatography on silica

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

実験手順: 60% dispersion of sodium hydride in mineral oil (2.37 g, 0.0592 mol) was added to a solution of N-phenyl-N-benzylamine (10.33 g, 0.0564 mol) in anhydrous N,N-dimethylformamide (200 mL) at 0° C. The reaction mixture was warmed up to ambient temperature and stirred for 45 min. Iodomethane (7.99 g, 0.0564 mol) was added dropwise and the stirring at ambient temperature was continued under an atmosphere of nitrogen for 20 hours. The solvent was removed under reduced pressure and the residue partitioned between ethyl acetate (250 mL) and water (200 mL). The organic phase was dried with magnesium sulfate and concentrated under reduced pressure. The residue was purified by flash chromatography on silica using ethyl acetate/n-heptane (2:98) as mobile phase to yield N-benzyl-N-methyl-N-phenylamine (4.4 g, 0.0223 mol) as a yellow oil. the stirring at ambient temperature was continued under an atmosphere of nitrogen for 20 hours The solvent was removed under reduced pressure the residue partitioned between ethyl acetate (250 mL) and water (200 mL) The organic phase was dried with magnesium sulfate concentrated under reduced pressure The residue was purified by flash chromatography on silica

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

実験手順: N-benzyl-N-phenyl-N-methylamine (4.41 g, 0.0224 mol) was dissolved in anhydrous dichloromethane (150 mL) and 2,4,4,6-tetrabromocyclohexadiene-1-one(9.16 g, 0.0224 mol) was added in 10 equal portions over a 30 min. period. Stirring was continued at ambient temperature for 20 hours. The organic phase was successively washed with 0.5N solution of sodium hydroxide in water (100 mL), 1N solution of sodium hydroxide in water (100 mL), water (120 mL) and brine (120 mL). The organic phase was dried with magnesium sulfate and concentrated under reduced pressure. The residue was purified by flash chromatography on silica using ethyl acetate/n-heptane (1:99) as mobile phase to yield N-benzyl-N-(4-bromophenyl)-N-methylamine (3.52 g, 0.0127 mol) as a colorless oil. The organic phase was successively washed with 0.5N solution of sodium hydroxide in water (100 mL), 1N solution of sodium hydroxide in water (100 mL), water (120 mL) and brine (120 mL) The organic phase was dried with magnesium sulfate concentrated under reduced pressure The residue was purified by flash chromatography on silica