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:
May. 06, 2008
Filed:
Aug. 18, 2004
Ramanujam Prasad, Streamwood, IL (US);
Jeffrey P. Conrad, Chicago, IL (US);
Thaddeus J. Ilg, Chicago, IL (US);
Ramanujam Prasad, Streamwood, IL (US);
Jeffrey P. Conrad, Chicago, IL (US);
Thaddeus J. Ilg, Chicago, IL (US);
Organics L.L.C., Northbrook, IL (US);
Abstract
A method of preparing a compound of formula I wherein R is a hydrocarbon and n is an integer from 1 to 5, including the steps of: contacting a compound of formula II with a compound selected from the group consisting of amines, and carbonates, bicarbonates, and hydroxides of alkali metals, and combinations thereof, in a solvent to produce a salt of a compound of formula II; treating the salt of the compound of formula II in a polar, aprotic solvent with an organic halide having a formula R—X, wherein X is selected from chlorine, bromine, iodine, and combinations thereof, to produce an ester of formula I; isolating a reaction product including the ester of formula I from the solvent by precipitation or solvent extraction; and purifying the compound of formula I, is disclosed.