反应详情

To a solution of 4-(2,2-difluoropropoxyl)pyrimidine-5-carbonitrile (850 mg, 4.27 mmol) in THF (30 mL) was added Raney-nickel (600 mg). The mixture was de-gassed under vacuum for 10 minutes, and then hydrogenated under a fully-inflated balloon at room temperature overnight. The mixture was filtered through a pad of Celite and the cake was washed with ethyl acetate (200 mL). The filtrate was removed under vacuum and the residue was purified by preparative HPLC (5% to 60% acetonitrile in water) to give the product (260 mg, 1.28 mmol, 30% yield) as a yellow oil. MS (ESI) m/z 204.0 [M+H]+.

1. customThe mixture was de-gassed under vacuum for 10 minutes
2. filtrationThe mixture was filtered through a pad of Celite
3. washthe cake was washed with ethyl acetate (200 mL)
4. customThe filtrate was removed under vacuum
5. customthe residue was purified by preparative HPLC (5% to 60% acetonitrile in water)