Phosphorus oxychloride → HCID 10084233, compound

Participants

Reaction Steps

3-Methoxyacetyl-8-methoxy-4-(1H)-quinolone (39 g, 0.16 mol) was heated under reflux in a mixture of phosphoryl chloride (150 ml) and chloroform (200 ml) for 45 minutes. The solvent was evaporated and the mixture ws partitioned between chloroform and sodium hydrogen carbonate solution. The aqueous layer was separated and extracted with chloroform. The combined organic solutions were washed with sodium hydrogen carbonate solution and brine. Evaporation gave an oil which afforded yellow crystals of 4-chloro-8-methoxy-3-methoxyacetylquinoline (19.2 g, 45.8%), m.p. 96°-8°.

Provenance & Evidence