Potassium Carbonate → HCID 66633798, Verbindung

HRID 1750128Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1750128
[OH:1][C:2]1[CH:11]=[C:10]2[C:5]([CH2:6][CH2:7][C:8](=[O:12])[NH:9]2)=[CH:4][CH:3]=1.[Cl:13][CH2:14][C:15]#[C:16][CH2:17]Cl.C([O-])([O-])=O.[K+].[K+]>CCO.O>[Cl:13][CH2:14][C:15]#[C:16][CH2:17][O:1][C:2]1[CH:11]=[C:10]2[C:5]([CH2:6][CH2:7][C:8](=[O:12])[NH:9]2)=[CH:4][CH:3]=1

Komponenten

6

Edukt 3

HCID 11430Potassium CarbonateHCID 131821,4-Dichloro-2-butyneHCID 27857587-Hydroxy-3,4-dihydrocarbostyril

Produkt 1

HCID 66633798HCID 66633798, VerbindungAusbeute 66,1 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 702EthanolLösungsmittelHCID 962WaterLösungsmittel

Versuchsvorschrift

A mixture of 7-hydroxy-3,4-dihydroquinolin-2(1H)-one (930 mg, 6 mmol), 1,4-dichlorobut-2-yne (326 mg, 2 mmol) and anhydrous K2CO3 (276 mg, 2 mmol) was dissolved in EtOH and the solution was heated to reflux overnight. The solution was diluted with water and extracted with EtOAc. The combined organic layers were washed with saturated aq NaHCO3, brine, dried over anhydrous Na2SO4, concentrated in vacuo and purified by flash chromatography on silica gel column to give 7-(4-chlorobut-2-ynyloxy)-3,4-dihydroquinolin-2(1H)-one (intermediate 50) (330 mg, 66%) as a yellow solid.

Aufarbeitung

  1. temperaturethe solution was heated
  2. temperatureto reflux overnight
  3. extractionextracted with EtOAc
  4. washThe combined organic layers were washed with saturated aq NaHCO3, brine
  5. dry with materialdried over anhydrous Na2SO4
  6. concentrationconcentrated in vacuo
  7. custompurified by flash chromatography on silica gel column

Quellen und Nachweise

ORD-Eintrag
ord-9e7f782c60a248ee9df520da853abfa4
Quelldatensatz
uspto-grants-2015_10
Patentnummer
US09156822B2

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