4-Bromo-2-methylpyridine → HCID 58094898, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of 1-allyl-2-[3-(2,4-dichlorophenyl)-5-(tributylstannyl)-2-thienyl]-1H-imidazole (300 mg, 0.48 mmol) and 4-bromo-2-picoline (68.9 mg, 0.40 mmol) in DMF (10.0 mL) was added bis(triphenylphosphine)palladium dichloride (14.1 mg, 0.02 mmol) under atmosphere of Argon then the mixture was heated at 90° C. for 1 h. After cooling to room temperature, the solvent was evaporated and the residue was purified by column chromatography (SiO2, elution with 3-5% MeOH in, DCM) to give 121 mg of product (67%). LC/MS (AA) ES+ 428. 1H NMR (400 MHz, d6 DMSO) δ: 8.48 (d, J=4.8 Hz, 1H), 7.93 (s, 1H), 7.72 (d, J=2.1 Hz, 1H), 7.60 (br s, 1H), 7.50-7.53 (m, 1H), 7.41 (dd, J=2.1, 8.4 Hz, 1H), 7.18-7.21 (m, 2H), 7.03 (d, J=1.1 Hz, 1H), 5.53-5.64 (m, 1H), 5.04 (dd, J=1.3, 10.3 Hz, 1H), 4.82 (dd, J=1.3, 17.1 Hz, 1H), 4.26-4.31 (m, 2H), 2.51 (s, 3H).

Provenance & Evidence