3-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine → 3-(4,5-Dihydrobenzo[b]thieno[2,3-d]oxepin-2-yl)pyridine

Participants

Reaction Steps

2-Bromo-4,5-dihydrobenzo[b]thieno[2,3-d]oxepine from Example 73 was reacted with 3-pyridine boronic acid pinacol ester using standard Suzuki coupling procedure. Purification on silica gave 152. 1H NMR (400 MHz, CDCl3): 3.29 (2H, t), 4.39 (2H, t), 7.05-7.10 (2H, m), 7.18-7.22 (2H, m), 7.32-7.35 (1H, m), 7.74 (1H, dd), 7.89 (1H, dt), 8.55 (1H, dd), 8.91 (1H, s). MS: (ESI+) 280

Provenance & Evidence