Invention Grant
US07928224B2 Optically active quaternary ammonium salt having axial asymmetry and process for producing α-amino acid and derivative thereof with the same 有权
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

  • 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
  • Application No.: US10587467
    Application Date: 2005-01-27
  • Publication No.: US07928224B2
    Publication 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
Optically active quaternary ammonium salt having axial asymmetry and process for producing α-amino acid and derivative thereof with the same
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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