Phosphorus sulfide (P2S5) → HCID 178448735, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of 1.31 grams of 1-butyl-3-(3,4-dichlorophenyl)-4,5-dihydro-1,2,4-triazin-6-one (4.4 mmol) in 12 mL of toluene was added 0.37 gram of phosphorus pentasulfide (8.3 mmol). The reaction was heated to 95° C. for seven hours. After cooling 1.4 grams of flash grade silica gel was added. The reaction was filtered through Celite and concentrated under reduced pressure. The oil was chromatographed with 22% ethyl acetate/hexanes and 0.95 grams of 1-butyl-3-(3,4-dichlorophenyl)-4,5-dihydro-1,2,4-triazin-6-thione was isolated.

Provenance & Evidence