Potassium Carbonate → N-{2-[1,1'-bi(cyclopropyl)-2-yl]cyclohexyl}-3-(difluoromethyl)-5-fluoro-1-methyl-1H-pyrazole-4-carboxamide

Participants

Reaction Steps

To a mixture of 0.489 g (2.73 mmol) 2-[1,1′-bi(cyclopropyl)-2-yl]cyclohexanamine and 0.565 g (4.09 mmol) potassiumcarbonate in 30 ml Acetonitrile was added 0.638 g (3.00 mmol) 3-(difluoromethyl)-5-fluoro-1-methyl-1H-pyrazole-4-carbonyl chloride and stirred at ambient temperature over night. At the end of the reaction the reaction mixture was extracted with ethylacetate and water. The organic layer was dried with natriumsulfate and the solvent was removed by vacuum. The crude product was purified by column chromathography (Solvent: Cyclohexane/ethylacetate gradient). Finally 0.40 g (33%) of N-{2-[1,1′-bi(cyclopropyl)-2-yl]cyclohexyl}-3-(difluoromethyl)-5-fluoro-1-methyl-1H-pyrazole-4-carboxamide with a purity of 87% LC-MS was isolated. log P (acid) of 4.02.

Provenance & Evidence