The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 17, 2005
Filed:
Jul. 01, 2003
Kwunmin Chen, Taipei, TW;
Kung-shou Yang, Taipei, TW;
Wei-der Lee, Kaohsiung, TW;
Jia-fu Pan, Changhua, TW;
Kwunmin Chen, Taipei, TW;
Kung-Shou Yang, Taipei, TW;
Wei-Der Lee, Kaohsiung, TW;
Jia-Fu Pan, Changhua, TW;
National Taiwan Normal University, Taipei, TW;
Abstract
Chiral chelating agents and chiral catalysts, which are formed from the chiral chelating agents and metal, are described. One chiral chelating agent has a general formula (1) as illustrated below:wherein R represents H, methyl, ethyl, a primary, secondary or tertiary straight, branched or cyclic alkyl group having 3-7 carbon atoms, a heterocyclic or aromatic group, an aromatic group substituted at the 2-, 3- or 4-position, an aromatic-like group, or a naphthyl or naphthyl-derived group, and n is an integer between 0 and 4.