Potassium Carbonate → HCID 11554272, compound

Participants

Reaction Steps

A mixture of 4-(2-chloroethyl)-4,5,6,7-tetrahydro-1-(3,4-dichlorophenyl)-1H-indazole (235 mg, 0.71 mmol), K2CO3 (99 mg, 0.71 mmol), 4-phenylpiperidine (97 mg, 0.71 mmol) and a catalytic amount of KI in 5 mL of DMF is heated to reflux during 18 hours. The solvent is eliminated at reduced pressure, the crude is diluted with ethyl acetate, washed with water, and the organic phase is evaporated at reduced pressure. The resultant crude is purified by chromatography on silica-gel to obtain 1-(3,4-dichlorophenyl)-4,5,6,7-tetrahydro-4-(2-(4-phenylpiperidin-1-yl)ethyl)-1H-indazole (146 mg, 0.32 mmol, 45%, oil).

Provenance & Evidence