Hydrochloric Acid → HCID 59637336, Verbindung
Reaktionsgleichung
CC([O-])(C)C.[K+].Cl[CH:8]([CH:14]1[CH2:19][CH2:18][CH2:17][CH2:16][CH2:15]1)[C:9]([O:11][CH2:12][CH3:13])=[O:10].[F:20][C:21]1[CH:26]=[CH:25][CH:24]=[CH:23][C:22]=1[N+:27]([O-:29])=[O:28].Cl>CN(C=O)C.O>[CH:14]1([CH:8]([C:25]2[CH:24]=[CH:23][C:22]([N+:27]([O-:29])=[O:28])=[C:21]([F:20])[CH:26]=2)[C:9]([O:11][CH2:12][CH3:13])=[O:10])[CH2:19][CH2:18][CH2:17][CH2:16][CH2:15]1Komponenten
7
Edukt 4
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 2
Reaktionsbedingungen
- Temperatur
- -45 °C
Versuchsvorschrift
8.2 g of potassium tert-butylate were dissolved in 70 mL of DMF and cooled to −45° C. To this, a mixture of ethyl 2-chloro-2-cyclohexylacetate (36.6 mmol, 7.5 g) and 1-fluoro-2-nitrobenzene (36.6 mmol, 3.9 mL) was gently added dropwise and stirring was continued for a further 20 minutes. The reaction mixture was set to pH 4 with 16% strength aq. HCl, diluted with 25 mL of water, and extracted with EA (3×50 mL). After combining the organic phases, they were washed with water and sat. aq. NaCl solution, dried over MgSO4, and concentrated in vacuo. The resulting residue was purified by column chromatography (silica gel: mesh 100-200, eluent: 10% EA in cyclohexane) and yielded 5.5 g (49%) of the desired product.
Aufarbeitung
- additionwas gently added dropwise
- extractionextracted with EA (3×50 mL)
- washwere washed with water and sat. aq. NaCl solution
- dry with materialdried over MgSO4
- concentrationconcentrated in vacuo
- customThe resulting residue was purified by column chromatography (silica gel: mesh 100-200, eluent: 10% EA in cyclohexane)
Quellen und Nachweise
- ORD-Eintrag
- ord-e74e165738674d408b9ffec3e4d7135a
- Quelldatensatz
- uspto-grants-2014_05
- Patentnummer
- US08735426B2
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