Dimethylformamide → methyl 4-[(2-methyl-3,4-dihydroquinolin-1(2H)-yl)methyl]-3-[(methylsulfonyl)oxy]benzoate

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Reaktionsgleichung

Br[CH2:2][C:3]1[CH:12]=[CH:11][C:6]([C:7]([O:9][CH3:10])=[O:8])=[CH:5][C:4]=1[O:13][S:14]([CH3:17])(=[O:16])=[O:15].[CH3:18][CH:19]1[CH2:28][CH2:27][C:26]2[C:21](=[CH:22][CH:23]=[CH:24][CH:25]=2)[NH:20]1.C(=O)([O-])[O-].[K+].[K+].CN(C)C=O>C(OCC)(=O)C>[CH3:18][CH:19]1[CH2:28][CH2:27][C:26]2[C:21](=[CH:22][CH:23]=[CH:24][CH:25]=2)[N:20]1[CH2:2][C:3]1[CH:12]=[CH:11][C:6]([C:7]([O:9][CH3:10])=[O:8])=[CH:5][C:4]=1[O:13][S:14]([CH3:17])(=[O:16])=[O:15]

Komponenten

Reaktionsbedingungen

Temperatur: 70 °C

Versuchsvorschrift

A mixture of methyl 4-(bromomethyl)-3-[(methylsulfonyl)oxy]benzoate (0.70 g, 2.2 mmol), 2-methyl-1,2,3,4-tetrahydroquinoline (0.39 g, 2.6 mmol), potassium carbonate (0.60 g, 4.3 mmol) and N,N-dimethylformamide (14 mL) was stirred at 70° C. for 23 hr. The reaction mixture was diluted with ethyl acetate, washed with water and saturated brine, dried over anhydrous magnesium sulfate, and concentrated under reduced pressure. The residue was purified by silica gel column chromatography (hexane/ethyl acetate=10/1-2/1) to give the title compound (0.63 g, yield 75%) as a pale-yellow oil.

Aufarbeitung

washwashed with water and saturated brine
dry with materialdried over anhydrous magnesium sulfate
concentrationconcentrated under reduced pressure
customThe residue was purified by silica gel column chromatography (hexane/ethyl acetate=10/1-2/1)

Quellen und Nachweise

ORD-Eintrag: ord-6312856ef23848778fe07efbc22e69ae
Quelldatensatz: uspto-grants-2010_08
DOI: 10.6084/m9.figshare.5104873.v1
Patentnummer: US07786165B2

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