Phosphorus oxychloride → HCID 22461061, compound

Participants

Reaction Steps

N-methyl-N-phenyl-1,2-dihydro-4-hydroxy-1,5-dimethyl-2-oxo-quinoline-3-carboxamide (3.5 g) was heated in phosphorus oxytrichloride (7 ml) at 100° C. for 2 hours. The mixture was concentrated, dissolved in dichloromethane and washed with water. The organic phase was dried (Na2SO4) and concentrated. The residue was triturated with ethyl acetate and filtered to give the title compound (2.3 g).

Provenance & Evidence