Potassium Carbonate → HCID 10332109, compound

Participants

Reaction Steps

2-(1H-Pyrrol-3-yl)pyridine (0.144 g, 11.0 mmol), 3-fluorobenzonitrile (1.21 g, 10 mmol), and potassium carbonate (0.0.276 g, 2 mmol) were heated at 145° C. in DMF (0.5 mL) for 14 h. After this time, the reaction mixture was cooled to rt and quenched with H2O (30 mL). The mixture was extracted with EtOAc (3×25 mL) and the combined organic extracts washed with brine. The organic phase was dried over Na2SO4, concentrated in vacuo and the residue was chromatographed on silica gel eluting with EtOAc:hexane (2:3) to afford a white solid which was recrystallized from dichloromethane-hexane to give 3-(3-pyridin-2-yl-1H-pyrrol-1-yl)benzonitrile as white crystals. 1H NMR (CD3Cl, 300 MHz) δ 8.59 (ddd, 1H), 7.78˜7.71 (m, 3H), 7.68 (dd, 1H), 7.62˜7.53 (m, 3H), 7.17˜7.11 (m, 2H), 6.89 (dd, 1H). MS (ES) 246.1 (M++H).

Provenance & Evidence