Patent Number: 6,307,094

Title: Process for substituted 3-hydroxybutyrate esters

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.

Inventors: Chong; Joshua Anthony (Lansdale, PA), Abdesaken; Fereydon (Dresher, PA), Spangler; Lori Ann (Churchville, PA), Roemmele; Renee Caroline (Maple Glen, PA), Stephens; Randall Wayne (Perkasie, PA), Nightingale; Peter David (Marple Bridge Stockport SK6 5LW, GB), Hartley; David John (Monton Eccles, Manchester, M30 9NZ, GB)


International Classification: C07C 67/31 (20060101); C07C 67/00 (20060101); C07C 069/63 ()

Expiration Date: 10/23/2018