反应详情

A solution of butyl (2E)-3-[2-[(2,2-dimethylpropanoyl)amino]-6-(methyloxy)-3-pyridinyl]-2-propenoate (43.706 g, 131 mmol) in ethanol (450 ml) under argon at rt was treated with palladium on carbon (10% paste) (5.0 g, 47.0 mmol) and then stirred at rt under 1 atmosphere of hydrogen for 90 h. The reaction mixture was then filtered through a thin pad of Kieselguhr, washing the product through with further ethanol (200 ml). The solvent was then evaporated to give product as a yellow solid (43.549 g, 99%).

1. filtrationThe reaction mixture was then filtered through a thin pad of Kieselguhr
2. washwashing the product through with further ethanol (200 ml)
3. customThe solvent was then evaporated