Invention Grant
- Patent Title: Optically active quaternary ammonium salt having axial asymmetry and process for producing α-amino acid and derivative thereof with the same
- Patent Title (中): 具有轴向不对称性的光学活性季铵盐及其制备α-氨基酸及其衍生物的方法
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Application No.: US10587467Application Date: 2005-01-27
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Publication No.: US07928224B2Publication Date: 2011-04-19
- Inventor: Keiji Maruoka
- Applicant: Keiji Maruoka
- Applicant Address: JP Osaka
- Assignee: Nagase & Co., Ltd
- Current Assignee: Nagase & Co., Ltd
- Current Assignee Address: JP Osaka
- Agency: Turocy & Watson, LLP
- Priority: JP2004-023317 20040130; JP2004-056659 20040301
- International Application: PCT/JP2005/001623 WO 20050127
- International Announcement: WO2005/073196 WO 20050811
- Main IPC: C07D223/14
- IPC: C07D223/14

Abstract:
The present invention provides a compound of the following formula (I) below. This compound (I) can be produced by reacting a 2,2′-dimethylene bromide-1,1′-binaphthyl derivative, which can be produced by a relatively small number of processes, with an easily available secondary amine. This compound (I) is useful as a chiral phase-transfer catalyst.
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