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:
Oct. 23, 2001
Filed:
May. 02, 2000
Applicant:
Inventors:
Joshua Anthony Chong, Lansdale, PA (US);
Fereydon Abdesaken, Dresher, PA (US);
Lori Ann Spangler, Churchville, PA (US);
Renee Caroline Roemmele, Maple Glen, PA (US);
Randall Wayne Stephens, Perkasie, PA (US);
Peter David Nightingale, Marple Bridge Stockport SK6 5LW, GB;
David John Hartley, Monton Eccles, Manchester, M30 9NZ, GB;
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 6/963 ;
U.S. Cl.
CPC ...
C07C 6/963 ;
Abstract
The present invention provides a solventless process for the catalytic hydrogenation of esters of 4,4,4-trihaloacetoacetic acid using a platinum catalyst in the presence of an acid or base co-catalyst to provide the analagous 3-hydroxybutyrate ester. Such 3-hydroxybutyrate esters are useful as solvents, cleaners or fine chemical intermediates.