Dimethylformamide → HCID 117690933, Verbindung

Beteiligte Stoffe

Reaktionsschritte

To a sealed reaction container were added 3-iodo[1,4]benzodioxino[2,3-c]pyridazine (200 mg) synthesized in Production Example 9 to be mentioned later, 4-ethynylphenyl trifluoromethyl ether (0.15 mL), copper iodide (6 mg), triethylamine (64 mg), bis(triphenylphosphine)palladium (II) dichloride (22 mg) and dimethylformamide (5 mL), and the mixture was stirred at 120° C. for 0.5 hr. Ethyl acetate and water were added, the organic layer was dried over anhydrous sodium sulfate, and the solvent was concentrated under reduced pressure. The obtained residue was purified by silica gel column chromatography (hexane-ethyl acetate) to give 3-{[4-(trifluoromethoxy)phenyl]ethynyl}[1,4]benzodioxino[2,3-c]pyridazine (100 mg).

Herkunft & Nachweise