发明申请
- 专利标题: PREPARATION OF CHIRAL AMIDES AND AMINES
- 专利标题(中): 制备乳酸和氨基酸
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申请号: US12281819申请日: 2007-03-30
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公开(公告)号: US20090149549A1公开(公告)日: 2009-06-11
- 发明人: Hang Zhao , Stefan G. Koenig , Charles P. Vandenbossche , Surendra Singh , H. Scott Wilkinson , Roger P. Bakale
- 申请人: Hang Zhao , Stefan G. Koenig , Charles P. Vandenbossche , Surendra Singh , H. Scott Wilkinson , Roger P. Bakale
- 国际申请: PCT/US07/65659 WO 20070330
- 主分类号: A61K31/135
- IPC分类号: A61K31/135 ; C07C231/10 ; C07C209/04
摘要:
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.
公开/授权文献
- US08097760B2 Preparation of chiral amides and amines 公开/授权日:2012-01-17
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