Invention Grant
- Patent Title: Preparation of chiral amides and amines
- Patent Title (中): 手性酰胺和胺的制备
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Application No.: US13333616Application Date: 2011-12-21
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Publication No.: US08524950B2Publication Date: 2013-09-03
- Inventor: Hang Zhao , Stefan G. Koenig , Charles P. Vandenbossche , Surendra Singh , Harold Scott Wilkinson , Roger P. Bakale
- Applicant: Hang Zhao , Stefan G. Koenig , Charles P. Vandenbossche , Surendra Singh , Harold Scott Wilkinson , Roger P. Bakale
- Applicant Address: US MA Marlborough
- Assignee: Sunovion Pharmaceuticals Inc.
- Current Assignee: Sunovion Pharmaceuticals Inc.
- Current Assignee Address: US MA Marlborough
- Agency: Heslin Rothenberg Farley & Mesiti P.C.
- Main IPC: C07C321/00
- IPC: C07C321/00 ; C07C323/00 ; C07C381/00

Abstract:
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.
Public/Granted literature
- US20120095106A1 PREPARATION OF CHIRAL AMIDES AND AMINES Public/Granted day:2012-04-19
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