Tetrahydrofuran → {(S)-6-[(R)-4-Formyl-5-trifluoromethyl-indan-1-yloxy]-2,3-dihydro-benzofuran-3-yl}-acetic acid methyl ester
Reaktionsgleichung
[CH3:1][O:2][C:3](=[O:30])[CH2:4][C@H:5]1[C:9]2[CH:10]=[CH:11][C:12]([O:14][C@H:15]3[C:23]4[C:18](=[C:19]([CH:28]=C)[C:20]([C:24]([F:27])([F:26])[F:25])=[CH:21][CH:22]=4)[CH2:17][CH2:16]3)=[CH:13][C:8]=2[O:7][CH2:6]1.[O:31]1CCCC1>O=[Os](=O)(=O)=O.O>[CH3:1][O:2][C:3](=[O:30])[CH2:4][C@H:5]1[C:9]2[CH:10]=[CH:11][C:12]([O:14][C@H:15]3[C:23]4[C:18](=[C:19]([CH:28]=[O:31])[C:20]([C:24]([F:26])([F:27])[F:25])=[CH:21][CH:22]=4)[CH2:17][CH2:16]3)=[CH:13][C:8]=2[O:7][CH2:6]1Komponenten
5
Edukt 2
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 2
Reaktionsbedingungen
- Temperatur
- 50 °C
Versuchsvorschrift
NaIO4 (1.80 g) and OsO4 (4% in water, 50 μL) are added to a mixture of {(S)-6-[(R)-5-trifluoromethyl-4-vinyl-indan-1-yloxy]-2,3-dihydro-benzofuran-3-yl}-acetic acid methyl ester (1.25 g), tetrahydrofuran (16 mL), and water (4 mL) at room temperature. The mixture is stirred at 50° C. overnight. After cooling to room temperature, water is added and the mixture is extracted with ethyl acetate. The combined extract is washed with brine, dried (Na2SO4), and concentrated. The residue is chromatographed on silica gel (cyclohexane/ethyl acetate) to give the title compound. LC (method 2): tR=1.19 min; Mass spectrum (ESI+): m/z=421 [M+H]+.
Aufarbeitung
- temperatureAfter cooling to room temperature
- extractionthe mixture is extracted with ethyl acetate
- extractionThe combined extract
- washis washed with brine
- dry with materialdried (Na2SO4)
- concentrationconcentrated
- customThe residue is chromatographed on silica gel (cyclohexane/ethyl acetate)
Quellen und Nachweise
- ORD-Eintrag
- ord-f30b052f1b33478d80f40cf9e67f933e
- Quelldatensatz
- uspto-grants-2014_08
- Patentnummer
- US08809376B2
Notizen zur Reaktion
Wird geladen…