Potassium Carbonate → HCID 18756085, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of 3-[4,6-dichloro-5-(2-methoxyphenoxy)-2-pyrimidinyl] pyridazine, (0.06 g, 0.7 mmol) in dimethylsulfoxide (4 ml) was added potassium carbonate (0.13 g, 0.94 mmol) immediately followed by 2-(1-naphthyl) ethanesulfonamide (0.044 g, 0.18 mmol). The mixture was stirred vigorously for 72 hours at 90° C. and then quenched with hydrochloric acid solution (2 M, 4 ml). Ice-cold water (5 ml) was added and a white precipitate was observed. The resultant mixture was partitioned between water (10 ml) and dichloromethane (3×10 ml). The combined organic extracts were washed with water (3×10 ml), dried (magnesium sulfate) and concentrated under vacuum, yielding a yellow oil. Trituration with 1 ml of ice cold water, followed by filtration gave the title compound as a white solid (0.088 g), m.p. 191.5° C.

Provenance & Evidence