Potassium Carbonate → 4-[4-Difluoromethoxy-2-(3-hydroxy-2,2-dimethyl-propoxy)-3-methoxy-phenyl]-indan-1-one

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Reaktionsgleichung

[F:1][CH:2]([F:23])[O:3][C:4]1[CH:9]=[CH:8][C:7]([C:10]2[CH:18]=[CH:17][CH:16]=[C:15]3[C:11]=2[CH2:12][CH2:13][C:14]3=[O:19])=[C:6]([OH:20])[C:5]=1[O:21][CH3:22].C(=O)([O-])[O-].[K+].[K+].Br[CH2:31][C:32]([CH3:36])([CH3:35])[CH2:33][OH:34]>C(#N)C>[F:1][CH:2]([F:23])[O:3][C:4]1[CH:9]=[CH:8][C:7]([C:10]2[CH:18]=[CH:17][CH:16]=[C:15]3[C:11]=2[CH2:12][CH2:13][C:14]3=[O:19])=[C:6]([O:20][CH2:31][C:32]([CH3:36])([CH3:35])[CH2:33][OH:34])[C:5]=1[O:21][CH3:22]

Komponenten

Reaktionsbedingungen

Temperatur: 80 °C

Versuchsvorschrift

To a stirring solution of 4-(4-(difluoromethoxy)-2-hydroxy-3-methoxyphenyl)-2,3-dihydro-1H-inden-1-one (80 mg, 0.25 mmol) in acetonitrile (10 mL) was added potassium carbonate (104 mg, 0.75 mmol) and followed by 3-bromo-2,2-dimethyl-propan-1-ol (125 mg, 0.75 mmol) and the resultant reaction mixture was heated to 80° C. for 16 h. The reaction mixture was cooled to RT, filtered through celite and the filtrate was concentrated under reduced pressure. The residue was purified by column chromatography (silica gel, 0-70% ethyl acetate in pet ether) to afford title compound as a solid (30 mg, 30%).

Aufarbeitung

customthe resultant reaction mixture
temperatureThe reaction mixture was cooled to RT
filtrationfiltered through celite
concentrationthe filtrate was concentrated under reduced pressure
customThe residue was purified by column chromatography (silica gel, 0-70% ethyl acetate in pet ether)

Quellen und Nachweise

ORD-Eintrag: ord-b65ea3efc013488ba28e011ca507044f
Quelldatensatz: uspto-grants-2015_06
DOI: 10.6084/m9.figshare.5104873.v1
Patentnummer: US09051290B2

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