Thionyl Chloride → 2-Oxo-2,3-dihydro-1,3-thiazole-4-carbonyl chloride
Reaktionsgleichung
[C:1]([C:4]1[NH:5][C:6](=[O:9])[S:7][CH:8]=1)(O)=[O:2].S(Cl)([Cl:12])=O>>[Cl:12][C:1]([C:4]1[NH:5][C:6](=[O:9])[S:7][CH:8]=1)=[O:2]Komponenten
3
Versuchsvorschrift
A mixture of 29 g of 4-carboxy-4-thiazoline-2-one [Enlenmeyer et al, Helv., Chim. Acta., Vol. 27 (1944), p.1432-6] and 200 ml of thionyl chloride was refluxed for 24 hours and was then cooled. The mixture was vacuum filtered to obtain 21 g of 4-chloroformyl-4-thiazoline-2-one melting at 184°C.
Aufarbeitung
- temperaturewas refluxed for 24 hours
- temperaturewas then cooled
- filtrationfiltered
Quellen und Nachweise
- ORD-Eintrag
- ord-12e104f2cab947bfbcd82d04910d91a4
- Quelldatensatz
- uspto-grants-1976_04
- Patentnummer
- US03948925
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