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. 26, 2014
Filed:
Dec. 16, 2010
Applicants:
Yugen Zhang, Singapore, SG;
Dingyi Yu, Singapore, SG;
Inventors:
Yugen Zhang, Singapore, SG;
Dingyi Yu, Singapore, SG;
Assignee:
Agency for Science Technology and Research, Singapore, SG;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 51/15 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention describes a process for converting a terminal alkyne into an alkynoic acid. In this process the alkyne is exposed to carbon dioxide in the presence of a copper (I) species, a base and a complexing agent capable of complexing copper (I).