2,6-Dichloro-4-iodopyridine → HCID 53670219, compound

Participants

Reaction Steps

Cyclopropylzinc bromide (0.5 M in tetrahydrofuran, 15 mL, 7.3 mmol) was added to a mixture of 2,6-dichloro-4-iodopyridine (1.0 g, 3.65 mmol) and tetrakis(triphenylphosphine)palladium(0) (211 mg, 0.182 mmol) in anhydrous tetrahydrofuran (10 mL) at 0° C. After being stirred at room temperature for 4 hours, the reaction mixture was filtered, and the filtrate was concentrated under reduced pressure. The residue was purified by column chromatography on silica gel (petroleum ether: ethyl acetate=100:1) to provide 2,6-dichloro-4-cyclopropylpyridine. MS ESI calc'd. for C8H8Cl2N [M+H]+ 188. found 188. 1H NMR: (400 MHz, CDCl3) δ 6.89 (s, 2H), 1.87-1.80 (m, 1H), 1.18-1.13 (m, 2H), 0.84-0.80 (m, 2H).

Provenance & Evidence