反应详情

2.30 g (6.22 mmol) of 2-(4-ethoxy-2,3-difluorophenyl)-5-but-1-enylselenophene are hydrogenated in 70 ml of ethyl acetate, in the presence of Pd/C (5% of Pd) at atmospheric pressure and RT. The reaction soln. is filtered and concentrated to dryness, and the crude product is purified by recrystallisation from n-heptane. 2-(4-Ethoxy-2,3-difluorophenyl)-5-butylselenophene is obtained as a colourless solid (m.p. 47° C.).

1. filtrationis filtered
2. concentrationconcentrated to dryness
3. customthe crude product is purified by recrystallisation from n-heptane