Potassium trimethylsilanolate → 3-[1-[2-(4-Chlorophenyl)ethyl]-3-oxo-3-phenylpropyl]-benzoic acid
Reaktionsgleichung
[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([CH2:8][CH2:9][CH:10]([C:20]2[CH:21]=[C:22]([CH:27]=[CH:28][CH:29]=2)[C:23]([O:25]C)=[O:24])[CH2:11][C:12](=[O:19])[C:13]2[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=2)=[CH:4][CH:3]=1.C[Si](C)(C)[O-].[K+]>C(OCC)C>[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([CH2:8][CH2:9][CH:10]([C:20]2[CH:21]=[C:22]([CH:27]=[CH:28][CH:29]=2)[C:23]([OH:25])=[O:24])[CH2:11][C:12](=[O:19])[C:13]2[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=2)=[CH:4][CH:3]=1Komponenten
4
Edukt 2
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
3-[1-(2-(4-Chlorophenyl)ethyl]-3-oxo-3-phenylpropyl]-benzoic acid, methyl ester (0.5 g, 1.22 mmol) is dissolved in diethyl ether (100 mL) and treated with potassium trimethylsilanolate (1 g, 7.8 mmol). After the mixture is stirred 18 hours, the resulting solid is collected by filtration and washed with diethyl ether. The dried cake is dissolved in water, acidified with 1N hydrochloric acid, and the resulting solid collected by filtration. Crystallization in diethyl ether-hexane provides 0.3 g of the title compound as large cottony needles; mp 93°-95° C.