反应详情

温度

55 °C

A two necked flask was charged under argon with rhodium(acac)bis ethylene (31 mg, 0.05 eq.), (R)-BINAP (74 mg, 0.05 eq.) and 4-chloro-3-fluoro-phenylboronic acid (825 mg, 2.5 eq.). 30 mL of MeOH and 3 mL of H2O were added followed by 1-(1-benzyl-2,5-dihydro-1H-pyrrol-3-yl)-ethanone (480 mg, described herein above). The reaction mixture was heated at 55° C. for 3 hours, cooled down to RT and concentrated under vacuo. Purification by flash chromatography (SiO2, EtOAc/Heptane 2/1) afforded 261 mg (33%) of the title product as a light yellow oil. ES-MS m/e: 332.1 (M+H+).

1. temperaturecooled down to RT
2. concentrationconcentrated under vacuo
3. customPurification by flash chromatography (SiO2, EtOAc/Heptane 2/1)