Potassium Carbonate → HCID 114798686, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of 4-phenyl-1H-pyrazole (775 mg, 5.38 mmol, 1.0 eq), 1-iodo-3-methoxybenzene (1510 mg, 768 μL, 6.45 mmol, 1.2 eq), CuI (21 mg, 0.11 mmol, 0.02 eq), K2CO3 (1561 mg, 11.30 mmol, 2.1 eq) and trans-1,2-cyclohexanediamine (123 mg, 1.08 mmol, 0.20 eq) in dioxane (12 mL) was stirred at a temperature of 110° C. for three days, then cooled to ambient temperature. The solvent was removed under reduced pressure and the residue was purified through column chromatography on silica gel using hexane and ethyl acetate (10:1-5:1-3:1) as an eluent to obtain the desired product, 1-(3-methoxyphenyl)-4-phenyl-1H-pyrazole 5, as a colorless liquid (1.13 g in 84% yield). 1H NMR (DMSO-d6, 400 MHz): δ 3.84 (s, 3H), 6.87-6.90 (m, 1H), 7.25 (t, J=7.2 Hz, 1H), 7.38-7.48 (m, 5H), 7.71 (d, J=7.2 Hz, 2H), 8.20 (s, 1H), 9.01 (s, 1H).

Provenance & Evidence