Sodium Carbonate → N-[2-(4-methoxyphenyl)-1-methylethyl]-N-ethyl-[1-(benzyloxycarbonyl)piperidin-4-ylcarbonyl]amine

HRID 429821Notes

Reaction equation

Cl.[CH3:2][O:3][C:4]1[CH:9]=[CH:8][C:7]([CH2:10][CH:11]([NH:13][CH2:14][CH3:15])[CH3:12])=[CH:6][CH:5]=1.C(=O)([O-])[O-].[Na+].[Na+].[CH2:22]([O:29][C:30]([N:32]1[CH2:37][CH2:36][CH:35]([C:38](Cl)=[O:39])[CH2:34][CH2:33]1)=[O:31])[C:23]1[CH:28]=[CH:27][CH:26]=[CH:25][CH:24]=1>C1(C)C=CC=CC=1.O.C(OCC)(=O)C>[CH3:2][O:3][C:4]1[CH:9]=[CH:8][C:7]([CH2:10][CH:11]([N:13]([C:38]([CH:35]2[CH2:36][CH2:37][N:32]([C:30]([O:29][CH2:22][C:23]3[CH:24]=[CH:25][CH:26]=[CH:27][CH:28]=3)=[O:31])[CH2:33][CH2:34]2)=[O:39])[CH2:14][CH3:15])[CH3:12])=[CH:6][CH:5]=1

Participants

Conditions

Temperature: 22 °C

Procedure

To a mixture of N-[2-(4-methoxyphenyl)-1-methylethyl]ethylamine hydrochloride (2.0 grams, 8.71 mole) and sodium carbonate (3.2 grams, 30 mole) in toluene (75 ml) and water (50 ml) was added dropwise to a solution of 1-benzyloxycarbonylpiperidine-4-carbonyl chloride (2.67 grams, 9.5 mmole) in toluene (25 ml). The reaction mixture was stirred at 22° C. for 16 hours.The mixture was diluted with ethyl acetate (100 ml), the organic phase was dried (anhydrous magnesium sulfate) and concentrated under reduced pressure. The residue was subjected to flash column chromatography over silica gel eluting with 30% ethyl acetate in hexane. The N-[2-(4-methoxyphenyl)-1-methylethyl]-N-ethyl-[1-(benzyloxycarbonyl)piperidin-4-ylcarbonyl]amine was obtained as an oil, (3.5 grams, 95%), M+H 439.

Workup

dry with materialthe organic phase was dried (anhydrous magnesium sulfate)
concentrationconcentrated under reduced pressure

Sources & evidence

ORD record: ord-95bdc87a5e2a43d6950aff4f57c7360b
Source dataset: uspto-grants-2001_11
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US06319920B1

Reaction notes

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