Dichloromethane → HCID 178519482, compound

Participants

Reaction Steps

Combine 5,7-dichloro-2-benzoyl-1,4-dihydroquinolin-4-one (0.57 g, 1.8 mmol) and benzenesulfonyl isocyanate (0.26 mL, 2.0 mmol) in acetonitrile (9 mL) and heat at reflux for 18 hours. Add methanol (5 mL) to quench the reaction. Evaporate in vacuo to obtain a residue. Chromatograph the residue on a column of silica gel eluting with dichloromethane to obtain a solid. Recrystallize the solid from ethyl acetate/hexane to give the title compound; mp, 186°-187° C. Rf =0.37 TLC/silica gel/dichloromethane. Elem. Anal. Calcd. for C22H14Cl2 N2O3S: C, 57.77; H, 3.09; N, 6.13. Found: C, 57.76; H, 3.22; N, 5.91.

Provenance & Evidence