Potassium Carbonate → HCID 58772593, compound

Participants

Reaction Conditions

Reaction Steps

A suspension of 6-chloro-7-(4-chlorophenyl)-[1,2,4]triazolo[4,3-b]pyridazin-3(2H)-one (843 mg, 3 mmol), 5-chloromethyl-2-(trifluoromethyl)pyridine (704 mg, 3.6 mmol) and solid K2CO3 (830 mg, 6 mmol) in anhydrous DMF (10 mL) was stirred at 70° C. for 20 min. Analysis by HPLC/MS indicated the reaction was complete. After cooling to room temperature, the reaction was diluted with water and extracted with EtOAc (40 mL×3). The combined EtOAc extracts were washed with saturated aqueous NaCl, dried (Na2SO4) and concentrated under reduced pressure. The crude product was purified by trituration with CH2Cl2-hexanes to afford 1.10 g (84%) of the title compound as a yellow solid. LC/MS (method A): retention time=3.50 min, (M+H)+=440.

Provenance & Evidence