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:
Aug. 30, 2011
Filed:
Oct. 30, 2009
Kwunmin Chen, Taipei, TW;
Ying-fang Ting, Taipei, TW;
Hsuan-hao Kuan, Taipei, TW;
Pang-min Liu, Taipei, TW;
Chihliang Chang, Taipei, TW;
Kwunmin Chen, Taipei, TW;
Ying-Fang Ting, Taipei, TW;
Hsuan-Hao Kuan, Taipei, TW;
Pang-Min Liu, Taipei, TW;
Chihliang Chang, Taipei, TW;
National Taiwan Normal University, Taipei, TW;
Abstract
The present invention provides an organocatalyst of formula (I), wherein Ris —H, —OH, —O—Si(R)(R)(R) or Calkoxy, in which R, Rand Rare identical or different and independently selected from the group consisting of Calkyl, phenyl and phenyl substituted with Calkyl; Ris —OH or ═O; Xis one selected from the group consisting of —NH—, —S— and Xis one selected from the group consisting of —C(═O)—, —CH— and and Xis different from X. The high yield and enantioselectivity of an addition reaction are obtained by using the organocatalyst of the present invention.