Methyl iodide → 3-(3-Chloro-5-fluorophenyl)-1-methylpyrrolidin-3-ol
Reaktionsgleichung
[CH2:1]([N:8]1[CH2:12][CH2:11][C:10]([C:14]2[CH:19]=[C:18]([F:20])[CH:17]=[C:16]([Cl:21])[CH:15]=2)([OH:13])[CH2:9]1)C1C=CC=CC=1.IC.N1CCOCC1>CN(C)C=O>[Cl:21][C:16]1[CH:15]=[C:14]([C:10]2([OH:13])[CH2:11][CH2:12][N:8]([CH3:1])[CH2:9]2)[CH:19]=[C:18]([F:20])[CH:17]=1Komponenten
5
Edukt 3
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
Preparation according to Example 34: (−)-1-benzyl-3-(3-chloro-5-fluorophenyl)pyrrolidin-3-ol (0.115 g, 0.38 mmol) and iodomethane (1 mL, 15.9 mmol), dimethyl formamid (2 mL), morpholine (2 mL). Purification by flash chromatography on silica gel (ethyl acetate/methanol, 1:0 to 1:1). Yield: 0.1 g. [α]D=−21.7° (methanol). The amine was converted to the oxalic acid salt and recrystallized from ethanol/diethyl ether/diisopropyl ether: M.p. 117-118° C.; MS m/z (relative intensity, 70 eV) 229 (M+, 6), 129 (7), 109 (6), 58 (28), 57 (bp).
Aufarbeitung
- customPreparation
- customPurification by flash chromatography on silica gel (ethyl acetate/methanol, 1:0 to 1:1)
- customrecrystallized from ethanol/diethyl ether/diisopropyl ether
Quellen und Nachweise
- ORD-Eintrag
- ord-295c4e0e75a943b29fa6c6c92b218792
- Quelldatensatz
- uspto-grants-2012_05
- Patentnummer
- US08188301B2
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