Hydrochloric Acid → 3-Ethyl-4-oxo-4-(2-phenyl-benzoxazol-6-yl)-butyric acid
Reaktionsgleichung
C[Si]([N-][Si](C)(C)C)(C)C.[K+].[C:11]1([C:17]2[O:18][C:19]3[CH:25]=[C:24]([C:26](=[O:30])[CH2:27][CH2:28][CH3:29])[CH:23]=[CH:22][C:20]=3[N:21]=2)[CH:16]=[CH:15][CH:14]=[CH:13][CH:12]=1.C[O:32][C:33](=[O:36])[CH2:34]Br.Cl>C1(C)C=CC=CC=1.C1COCC1>[CH2:28]([CH:27]([C:26](=[O:30])[C:24]1[CH:23]=[CH:22][C:20]2[N:21]=[C:17]([C:11]3[CH:16]=[CH:15][CH:14]=[CH:13][CH:12]=3)[O:18][C:19]=2[CH:25]=1)[CH2:34][C:33]([OH:36])=[O:32])[CH3:29]Komponenten
7
Edukt 4
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 2
Reaktionsbedingungen
- Temperatur
- -78 °C
Versuchsvorschrift
625.00 μl (313 μmol) potassium bis(trimethylsilyl)amide 0.5M in toluene are placed in 15 ml THF and cooled to −78° C. 75.00 mg (283 μmol) 1-(2-phenyl-benzoxazol-6-yl)-butan-1-one, dissolved in 15 ml THF, are added dropwise to this solution and the mixture is stirred for 15 min at −78° C. Then 55 mg (360 μmol) methylbromoacetate, dissolved in 5 ml THF, are also added dropwise and the mixture is stirred for 30 min at −78° C., then 1N hydrochloric acid is added and the mixture is extracted with diethyl ether. The org. phase is dried on magnesium sulphate and the solv. is eliminated i.V.
Aufarbeitung
- additionare added dropwise to this solution
- additionare also added dropwise
- stirringthe mixture is stirred for 30 min at −78° C.
- extractionthe mixture is extracted with diethyl ether
- customphase is dried on magnesium sulphate
Quellen und Nachweise
- ORD-Eintrag
- ord-e10417453f1d4371aa095ac680b78911
- Quelldatensatz
- uspto-grants-2014_07
- Patentnummer
- US08772323B2
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