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:
Mar. 25, 2014
Filed:
May. 18, 2010
Guofu Zhong, Singapore, SG;
Min LU, Singapore, SG;
Di Zhu, Singapore, SG;
Pei Juan Chua, Singapore, SG;
Bin Tan, Singapore, SG;
Guofu Zhong, Singapore, SG;
Min Lu, Singapore, SG;
Di Zhu, Singapore, SG;
Pei Juan Chua, Singapore, SG;
Bin Tan, Singapore, SG;
Nanyang Technological University, Singapore, SG;
Abstract
Disclosed is a process of enantioselectively forming an aminoxy compound of Formula (3) In formula (3) Ris one of an aliphatic group and an alicyclic group. Ris one of hydrogen, an aliphatic group, an alicyclic group, an aromatic group, an arylaliphatic group and an arylalicyclic group. Ris one of hydrogen, halogen, hydroxyl, and an aliphatic group with a main chain having 1 to about 10 carbon atoms. The respective aliphatic, alicyclic, aromatic, arylaliphatic or arylalicyclic groups of R, R, and Rcomprise 0 to about 3 heteroatoms independently selected from the group consisting of N, O, S, Se and Si. The process includes contacting a carbonyl compound of Formula (1) and a nitroso compound of Formula (2) in the presence of a chiral catalyst. The chiral catalyst is a compound of Formula (IX)