Pyrazole → HCID 61532030, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of 4-bromo-1-(bromomethyl)-2-fluorobenzene (0.268 g, 1.0 mmol), 1H-pyrazole (0.0681 g, 1.0 mmol) and cesium carbonate (0.489 g, 1.5 mmol) in N,N-dimethylformamide (1.0 mL) was heated at 90° C. for 3 h. After cooling to RT, the mixture was diluted with EtOAc, and filtered. The filtrate was washed with water and brine. The organic layer was dried over Na2SO4, filtered, and concentrated under reduced pressure. The residue (210 mg, 82.3%) was directly used in next step without further purification. LCMS: (M+H)=256.9/254.9.

Provenance & Evidence