4-Vinylpyridine → HCID 54192485, compound

Participants

Reaction Steps

A mixture of 5-bromo-6-chloro-3-(1-BOC-2-(R)-pyrrolidinyimethoxy)pyridine from Example 69a (1.18 g, 3 mmol), 4-ethenylpyridine (0.39 mL, 3.6 mmol), Pd(OAc)4 (62.5 mg), tris(o-tolyl)phosphine (312.5 mg), and triethylamine (6.25 mL) in acetonitrile (15 mL) was heated at reflux for 16 hours. The solution was then concentrated, and the residue was washed with water and aqueous NaHCO3 solution. The organic layer was dried and concentrated. The residue was chromatographed on a silica gel column, eluting with hexane:Et2O 100:5-100:15 to afford the title compound (852 mg, 69% yield). MS (CI/NH3) m/z 416 (M+H)+. 1H NMR (CDCl3, 300 MHz) δ1.48 (s, 9H), 1.92 (m, 2H), 2.02 (m, 2H), 3.42 (m, 2H), 3.97 (m, 1H), 4.13 (m, 2H), 7.43 (m, 2H), 7.56 (m, 1H), 8.05 (m, 1H), 8.62 (m, 2H).

Provenance & Evidence