Sodium hydride → [6-(2-Fluoro-phenyl)-pyridazin-3-yloxy]-acetic acid tert-butyl ester

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Reaction Steps

37.6 mg (0.285 mmol) of hydroxyacetic acid tert-butyl ester were dissolved in 10 ml of DMF, 12.4 mg of sodium hydride (55% in mineral oil) were added, and the mixture was stirred at room temperature for 15 min. Then 60 mg (0.237 mmol) of 3-bromo-6-(2-fluoro-phenyl)-pyridazine in 2 ml of DMF were added, and the reaction mixture was stirred at 60° C. for 5 h and at 120° C. for 5 h. After evaporation to dryness, the crude product was directly employed in the subsequent step.

Provenance & Evidence