申请人:Zhao Hang
公开号:US20090149549A1
公开(公告)日:2009-06-11
This invention provides a convenient method for converting oximes into enamides. The process does not require the use of metallic reagents. Accordingly, it produces the desired compounds without the concomitant production of a large volume of metallic waste. The enamides are useful precursors to amides and amines. The invention provides a process to convert a prochiral enamide into the corresponding chiral amide. In an exemplary process, a chiral amino center is introduced during hydrogenation through the use of a chiral hydrogenation catalyst. In selected embodiments, the invention provides methods of preparing amides and amines that include the 1,2,3,4-tetrahydro-N-alkyl-1-naphthalenamine or 1,2,3,4-tetrahydro-1-naphthalenamine substructure.
这项发明提供了一种方便的方法,将肟转化为烯酰胺。该过程不需要使用金属试剂。因此,它能够产生所需化合物,而不会伴随产生大量金属废物。烯酰胺是酰胺和胺的有用前体。该发明提供了将一个原生手性烯酰胺转化为相应手性酰胺的过程。在一个示范过程中,通过使用手性氢化催化剂,在氢化过程中引入了手性氨基中心。在选定的实施例中,该发明提供了制备酰胺和胺的方法,其中包括1,2,3,4-四氢-N-烷基-1-萘胺或1,2,3,4-四氢-1-萘胺亚结构。