Phenyl isocyanate → HCID 28365632, compound

Participants

Reaction Steps

A solution of phenyl isocyanate (2.98 g) in toluene (30 ml) was added dropwise to a stirred suspension of 4-fluoroanthranilic acid (3.88 g) in toluene (80 ml) at 50°. The mixture was stirred at 90° for 2 hours and the toluene evaporated under reduced pressure (30 ml). The residue was recrystallised from hexane/ethyl acetate to give 4-fluoro-N-phenylcarbamoylanthranilic acid, m.p. 163°-166°. (Compound 5).

Provenance & Evidence