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. 17, 1977
Filed:
Dec. 10, 1974
Applicant:
Inventors:
Assignee:
Dynamit Nobel Aktiengesellschaft, Troisdorf, DT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
2604 / ;
Abstract
The hydrogenation of benzene dicarboxylic acid mono and diesters to corresponding cyclohexene dicarboxylic acid mono and diesters by carrying out the hydrogenation in the active and effective presence of alkalimetal amalgam and an alcohol in a substantially anhydrous environment. The hydrogenation reaction medium should be a mixture of the above referred to alcohol and an aromatic hydrocarbon such as toluene.