Phosphorus sulfide (P2S5) → HCID 178508162, compound

Participants

Reaction Steps

A suspension of 2-amino-6-(4-fluorophenyl)-pyrido(3,2-d)pyrimidin-4(3H)one (2.56 g, 10 mmol) and phosphorus pentasulfide (2.5 g, 11 mmol) in pyridine (200 ml) was refluxed for 4 hours. The reaction mixture was cooled down and the precipitate was filtered off, yielding the pure title compound, which was used without any further purification (2 g, yield: 73%) and was characterised by its mass spectrum as follows: MS (m/z): 273 ([M+H]+, 100)

Provenance & Evidence