4-Vinylpyridine → 3-(1-Boc-2-(s)-pyrrolidinyl-methoxy)-5-(4-pyridinyl-ethenyl)pyridine

Participants

Reaction Conditions

Reaction Steps

To a solution of 3-(1-BOC-2-(S)-pyrrolidinylmethoxy)-5-bromopyridine (300 mg, 0.84 mmol) in acetonitrile (10 mL) and NEt3 (1 mL) was added 4-vinylpyridine(0.15 mL, 1.34 mmol), palladium acetate (28 mg, 0.13 mmol) and tri-o-tolylphosphine (141 mg). The reaction mixture was heated in a sealed tube at 100° C. for 16 h. After cooling to room temperature, saturated NaHCO3 solution was added. The mixture was extracted with EtOAc (2X). The combined organic solvent was dried (MgSO4), concentrated and chromatographed (silica gel; hexane/EtOAc, 2:1 to 1:2) to afford an oil (255 mg, 80%): 1H NMR (CDCl3, 300 Hz) δ1.50 (s, 9H), 1.90 (m, 1H), 2.00-2.10 (m, 2H), 3.30-3.50 (m, 2H), 4.00 (m, 1H), 4.14-4.24 (m, 2H), 4.28 (m, 1H), 7.10 (m, 1H), 7.24 (m, 1H), 7.36-7.40 (m, 3H), 8.26 (s, 1H), 8.30 (s, 1H), 8.60 (d, 2H, J=6.5 Hz); MS (CI/NH3) m/z 382 (M+H)+.

Provenance & Evidence