Patent · US Active

Method of producing dicarboxylic acids

US7534917B1 · kind B1 · utility

10Cited by

7References

33Claims

0Family size

Assignee

The United States of America, as represented by the Secretary of Agriculture · US

Inventors

Helen Ngo · North Wales, US
Thomas A. Foglia · Whitemarsh, US

Key dates

Filing date	Apr 12, 2007
Grant date	May 19, 2009
Priority date	—
Expiry date	Apr 12, 2027

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C67/08
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

A method of producing dicarboxylic acids (e.g., α,ω dicarboxylic acids) by reacting a compound having a terminal COOH (e.g., unsaturated fatty acid such as oleic acid) and containing at least one carbon-carbon double bond with a second generation Grubbs catalyst in the absence of solvent to produce dicarboxylic acids. The method is conducted in an inert atmosphere (e.g., argon, nitrogen). The process also works well with mixed unsaturated fatty acids obtained from soybean, rapeseed, tall, and linseed oils.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.