Potassium Carbonate → HCID 59769253, compound

Participants

Reaction Steps

The product from Step 2 (0.307 g) and potassium carbonate (0.25 g) were stirred in dry DMF (10 ml) at 110° C. for 2 hours and then cooled and stood for 18 hours. The DMF was evaporated and the resulting brown solid was triturated with diethyl ether and the organic phase decanted. The solid was dissolved in water then acidified with dilute hydrochloric acid to neutrality. Most of the aqueous phase was then evaporated, leading to precipitation of a black solid that was filtered, and the yellow/brown aqueous phase was evaporated to dryness, affording a residue that was dissolved in methanol, the insoluble inorganic salts were filtered and the organic phase was evaporated to dryness to give 7-(2,4,6-trifluorophenyl)-5H-pyrido[3,2-c]pyridazine-6,8-dione as a light brown/beige solid (0.258 g).

Provenance & Evidence