Phosphorus sulfide (P2S5) → HCID 22114871, compound

Participants

Reaction Steps

A mixture of 8-(4-chloro-5-ethylsulfonylamino-2-fluorophenyl)-7,8-dihydro-5-trifluoromethylimidazo[1,2-a]pyrimidin-7-one (0.6 g), diphosphorus pentasulfide (0.5 g) and toluene (30 ml) was heated to reflux for 3 hours. The solid matter was filtered off and the filtrate was concentrated under reduced pressure. The residue was purified by column chromatography of silica gel (developing solvent: ethyl acetate) to give the compound of interest (0.5 g) as a yellow crystal.

Provenance & Evidence