6-(Chloroacetyl)quinolin-2(1H)-one → 2-Hydroxyquinoline
Reaktionsgleichung
ClCC([C:5]1[CH:6]=[C:7]2[C:12](=[CH:13][CH:14]=1)[NH:11][C:10](=[O:15])[CH:9]=[CH:8]2)=O>N1C=CC=CC=1>[NH:11]1[C:12]2[C:7](=[CH:6][CH:5]=[CH:14][CH:13]=2)[CH:8]=[CH:9][C:10]1=[O:15]Komponenten
3
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
60 Grams of 6-(α-chloroacetyl)carbostyril was suspended in 0.5 kg of pyridine and stirred at 80°-90° C. for 2 hours, then the suspension was stirred under ice-cooling for 1 hour. The crystals thus precipitated were collected by filtration and recrystallized from methanol to obtain 70 g of 6-(α-pyridiniumacetyl)carbostyril chloride 1/2-hydrate in the form of colorless needle-like crystals. Melting point: over 300° C.
Aufarbeitung
- stirringthe suspension was stirred under ice-
- temperaturecooling for 1 hour
- customThe crystals thus precipitated
- filtrationwere collected by filtration
- customrecrystallized from methanol
Quellen und Nachweise
- ORD-Eintrag
- ord-e4548e8dc46b4638ba5799f63a7cb07b
- Quelldatensatz
- uspto-grants-1984_12
- Patentnummer
- US04487772
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