Phosphorus oxychloride → HCID 18693014, compound

Participants

Reaction Steps

1-[2-(4-Methylphenyl)benzoyl]semicarbazide (4.6 g) and phosphorus oxychloride (10.3 g) were suspended in benzene (100 ml), and the suspension was heated for 3 hours under reflux. The reaction mixture was concentrated to dryness under reduced pressure. To the residue was added water, and resulting crystalline precipitate was collected by filtration. Recrystallization from methanol afforded the title compound as colorless needles (3.4 g, 79%), m.p.245°-246° C. (decomp.).

Provenance & Evidence