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. 12, 2000
Filed:
Apr. 01, 1999
Michael C Seidel, Chalfont, PA (US);
Other;
Abstract
A synthesis process for producing 11-cis, 13-trans eicosadienoic acid at room temperature in high yield is disclosed, including providing a tosylate or mesylate of a methyl lesquerolate and 11-cis, 13-trans eicosadienoic acid formed when the tosylate or mesylate reacts with diazabicyclo-undecene. In one aspect, the tosylate of the methyl lesquerolate is formed with tosyl chloride in a pyridine solvent. In one aspect, the mesylate of the methyl lesquerolate is formed with mesyl chloride in acetonitrile and triethyl amine. In one aspect, the tosylate or mesylate is reacted with diazabicyclo-undecene in a polar, non-hydroxylic solvent of acetonitrile to form the preferred isomer of 11-cis, 13-trans eicosadienoic acid at room temperature in high yield.