反应详情

A suspension of 2-bromoacrylic acid (25.0 g, 166.66 mmol), benzyl bromide (21.8.0 mL, 183.32 mmol) and K2CO3 (46 g, 333.32 mmol) in acetonitrile (250 mL) was stirred at 80° C. for 3 h until complete consumption of 2-bromoacrylic acid, as evidenced by TLC analysis. The reaction mixture was filtered and concentrated. The obtained crude compound was purified by CC using 5% EtOAc in PE as eluent to afford benzyl 2-bromoacrylate (22 g, 53%) as a yellow liquid (TLC solvent system: 5% EtOAc in PE; Rf: 0.7).

1. filtrationThe reaction mixture was filtered
2. concentrationconcentrated
3. customThe obtained crude compound
4. customwas purified by CC