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:
Dec. 08, 2015
Filed:
Sep. 03, 2009
Teck Peng Loh, Singapore, SG;
Jian Xiao, Singapore, SG;
Teck Peng Loh, Singapore, SG;
Jian Xiao, Singapore, SG;
NANYANG TECHNOLOGICAL UNIVERSITY, Singapore, SG;
Abstract
The present invention relates to a compound of general Formula (XX), its formation and its use in asymmetric catalysis. In Formula (XX) R and Rare independently —COOR, —RCOOR, —RCHO, —RCOR, —RCONRR, —RCOX, —ROP(═O)(OH), —RP(═O)(OH)), —RC(O)C(R)CRRand —RCOCOR. In addition, Rmay also be hydrogen. R, Rand Rare independently hydrogen, an aliphatic group with a main chain having 1 to about 20 carbon atoms, an alicyclic group, an aromatic group, an arylaliphatic group or an arylalicyclic group, comprising 0 to about 3 heteroatoms independently selected from the group consisting of N, O, S, Se and Si. Ran aliphatic bridge with a main chain having 1 to about 20 carbon atoms, an alicyclic bridge, an aromatic bridge, an arylaliphatic bridge or an arylalicyclic bridge, comprising 0 to about 3 heteroatoms independently selected from the group consisting of N, O, S, Se and Si, and X is halogen. In Formula (XX) Ris —C(OH)RRor —COOR, wherein R, Rand Rare independently hydrogen, an aliphatic group with a main chain having 1 to about 20 carbon atoms, an alicyclic group, an aromatic group, an arylaliphatic group or an arylalicyclic group, comprising 0 to about 3 heteroatoms independently selected from the group consisting of N, O, S, Se and Si.