Patent Number: 8,816,127

Title: Carboxylation of terminal alkynes

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).

Inventors: Zhang; Yugen (Singapore, SG), Yu; Dingyi (Singapore, SG)

Assignee: Agency for Science Technology and Research

International Classification: C07C 51/15 (20060101)

Expiration Date: 8/26/12018