Potassium Carbonate → HCID 47078632, compound

Participants

Reaction Conditions

Reaction Steps

A 50 mL of flask was charged with 2.62 g of 3-fluorobenzenebromide (15 mmol), 1.40 g of ethyl 1-H-pyrazole-3-carboxylate (10 mmol), 400 mg of CuI (2.0 mmol), 4.5 g of K2CO3 (3.3 mmol) and 0.9 mL of trans-N,N′-dimethylcyclohexayldiamine (2.0 mmol). The resulting mixture was stirred at 140° C. for 3 h. After the mixture was cooled down to room temperature, it was diluted with 200 mL EtOAc and then was washed with water (2×50 mL), and brine (2×50 mL). The organics were dried over MgSO4 and concentrated under reduced pressure. The residue was purified via flash column chromatography on silica gel (0-25% EtOAc in hexanes) to give the desired product (1.17 g, 50%).

Provenance & Evidence