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. 12, 1981
Filed:
Aug. 17, 1979
Applicant:
Inventors:
Peter J Meyer, Munstergeleen, NL;
Josef M Penders, Maastricht, NL;
Assignee:
Stamicarbon, B.V., Geleen, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ; C07C / ; C07C / ;
U.S. Cl.
CPC ...
560174 ; 260464 ; 2604651 ; 560126 ; 562577 ; 562508 ;
Abstract
A process is described for the preparation of delta keto-acids wherein there is used as a catalyst the condensation adduct of a cyclic secondary amine with an .alpha.-.beta.-acrylic-type unsaturated compound, providing high selectivity and conversion results.