Potassium Carbonate → HCID 57924561, compound

Participants

Reaction Steps

To a solution of 2-chloro-1H-benzo[d]imidazole (152 mg, 1.0 mmol.) in DMF was added K2CO3 (277 mg, 2.0 mmol.) and iodocyclopentane (295 mg, 1.5 mmol.). The reaction mixture was stirred at room temperature for 24 hours. The reaction mixture was poured into ice-water. The mixture was extracted with ethyl acetate (30 mL×3), washed with brine, dried over Na2SO4, concentrated to give a residue, which was purified by column chromatography to afford 2-chloro-1-cyclopentyl-1H-benzo[d]imidazole (130 mg, 59%). 1H NMR (400 MHz, CDCl3) δ 7.68˜7.60 (m, 1 H), 7.39˜7.30 (m, 1 H), 7.20˜7.15 (m, 2 H), 5.04˜4.90 (m, 1 H), 2.25˜1.92 (m, 6 H), 1.85˜1.70 (m, 2 H).

Provenance & Evidence