反応 #673488

反応方程式

1,3-dibromobenzene

pyridine-3-boronic acid 1,3-propanediol cyclic ester

→

title compound

収率 64.0%

3-(3-Bromophenyl)pyridine

収率 64.0%

溶媒

ethanol

反応条件

後処理

1. 1
   その他for 14 h
2. 2
   その他The resulting crude residue was purified by column chromatography (silica gel, 80% Et2O/hexane)

実験手順

This reaction was carried out as described in Example 37, step a, using 1,3-dibromobenzene (8.7 g, 36.8 mmol) and pyridine-3-boronic acid 1,3-propanediol cyclic ester (4.0 g, 24.5 mmol) in ethanol (60 ml) for 14 h. The resulting crude residue was purified by column chromatography (silica gel, 80% Et2O/hexane) to yield the title compound (3.66 g, 64%): 1H NMR (360 MHz, CDCl3) δ 7.30-7.42 (2H, m), 7.47-7.60 (2H, m), 7.72 (1H, s), 7.84 (1H, dt, J 8.0, 2.0 Hz), 8.62 (1H, dd, J 4.8, 1.5 Hz), 8.83 (1H, s).

出典