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:
Aug. 04, 1992
Filed:
Aug. 03, 1990
Vu A Dang, Wilmington, DE (US);
Gleason O Cookson, Taunton, MA (US);
Krishna Raman, Wilmington, DE (US);
Himont Incorporated, Wilmington, DE (US);
Abstract
Disclosed is a process for the preparation of organic esters and amides by reacting (a) a 5 to 60 mole % excess of an ester of (substituted-4-hydroxyphenyl) alkanoic acid with (b) (i) a C.sub.4 -C.sub.20 aliphatic alcohol or thioether alcohol having one or more hydroxyl groups or (ii) an amine of the formula, (R'').sub.2 N(CH.sub.2).sub.n R'' wherein R'' is hydrogen, C.sub.1-7 alkyl, C.sub.5-12 cycloalkyl, or C.sub.6-12 aryl, provided that one R'' is hydrogen, and R'' is hydrogen or N(R'').sub.2 wherein R'' is a defined above, in the presence of a catalyst system comprising a basic inorganic compound and a polar aprotic organic compound. The process provides higher yields of the desired product, shorter reaction times, and reduces the production of undesirable side-products.