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Methanol → 1-(4-fluorophenyl)-2-(tritylthio)-1H-imidazole-5-carboxylic acid

HRID 2368471
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 2368471
[F:1][C:2]1[CH:7]=[CH:6][C:5]([N:8]2[C:12]([C:13]([O:15]CC)=[O:14])=[CH:11][N:10]=[C:9]2[S:18][C:19]([C:32]2[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=2)([C:26]2[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=2)[C:20]2[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=2)=[CH:4][CH:3]=1.[OH-].[Na+].CO.C1COCC1>O>[F:1][C:2]1[CH:7]=[CH:6][C:5]([N:8]2[C:12]([C:13]([OH:15])=[O:14])=[CH:11][N:10]=[C:9]2[S:18][C:19]([C:32]2[CH:33]=[CH:34][CH:35]=[CH:36][CH:37]=2)([C:26]2[CH:27]=[CH:28][CH:29]=[CH:30][CH:31]=2)[C:20]2[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=2)=[CH:4][CH:3]=1
KomponentenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

6

Edukt 4

HCID 887MethanolHCID 8028TetrahydrofuranHCID 14798Sodium HydroxideHCID 71117533ethyl 1-(4-fluorophenyl)-2-(tritylthio)-1H-imidazole-5-carboxylate

Produkt 1

HCID 711174681-(4-fluorophenyl)-2-(tritylthio)-1H-imidazole-5-carboxylic acid

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 962
Water
Lösungsmittel

Versuchsvorschrift

To a solution of ethyl 1-(4-fluorophenyl)-2-mercapto-1H-imidazole-5-carboxylate (3) (4.09 g, 15.34 mmol) in THF (70 mL) was added triethyl amine (4.50 mL, 32.29) and triphenylmethyl chloride (4.67 g, 16.76 mmol) and the solution was stirred for 1 hour at room temperature. The reaction was concentrated in vacuo and the residue was purified by flash column chromatography on silica gel (10%-40% EtOAc in hexanes) to give ethyl 1-(4-fluorophenyl)-2-(tritylthio)-1H-imidazole-5-carboxylate. A solution of ethyl 1-(4-fluorophenyl)-2-(tritylthio)-1H-imidazole-5-carboxylate (6.34 g, 12.47 mmol), sodium hydroxide (0.74 g, 18.39 mmol), methanol (10 mL), THF (20 mL), and water (10 mL) was stirred at room temperature for 16 hour and was then concentrated in vacuo. The aqueous was extracted with ethyl acetate. The combined organic extracts were dried over sodium sulfate, filtered, and the filtrate was concentrated in vacuo to yield 1-(4-fluorophenyl)-2-(tritylthio)-1H-imidazole-5-carboxylic acid (6).

Aufarbeitung

  1. concentrationwas then concentrated in vacuo
  2. extractionThe aqueous was extracted with ethyl acetate
  3. dry with materialThe combined organic extracts were dried over sodium sulfate
  4. filtrationfiltered
  5. concentrationthe filtrate was concentrated in vacuo

Quellen und Nachweise

ORD-Eintrag
ord-1e180bd58ee84d369f25180eb65f8186
Quelldatensatz
uspto-grants-2014_04
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08703776B2

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