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. 31, 2000
Filed:
Mar. 03, 1999
Applicant:
Inventors:
Guenther Koehler, Marl, DE;
Juergen Chlench, Dorsten, DE;
Assignee:
Huels Aktiengesellschaft, Marl, DE;
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
549266 ; 554124 ;
Abstract
A process for the preparation of macrocyclic esters or lactones in a two-stage reaction, which entails effecting linear oligomerization of monomers having a number of carbon atoms corresponding to the macrocycle and effecting cyclizing deoligomerization, wherein both steps are conducted in the presence of a complex compound of trivalent iron.