Ammonia → 1-{3-[3-(3,5-difluorophenyl)-6-oxo-6H-pyridazin-1-yl-methyl]phenyl}-3-methyl-6H-pyridazin-6-one

Participants

Reaction Conditions

Reaction Steps

3.2 14.3 mg (0.08 mmol) of copper(I) iodide, 76 mg (0.55 mmol) of potassium carbonate and 11 mg (0.08 mmol) of 8-hydroxyquinoline are added to a solution of 212 mg (0.50 mmol) of 6-(3,5-difluorophenyl)-2-(3-iodobenzyl)-2H-pyridazin-3-one and 55.1 mg (0.5 mmol) of 6-methylpyridazin-3(2H)-one in 2 ml of DMF, and the mixture is heated at 120° C. for 24 hours. The reaction mixture is allowed to cool, and 10% aqueous ammonia solution and ethyl acetate are added. The resultant precipitate is filtered off with suction, washed with water and dried. The residue is boiled in ethyl acetate, filtered off with suction and washed with ethyl acetate. The residue is dried in vacuo: 1-{3-[3-(3,5-difluorophenyl)-6-oxo-6H-pyridazin-1-ylmethyl]phenyl}-3-methyl-6H-pyridazin-6-one (“A8”) as brownish crystals; ESI 407.

Provenance & Evidence