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:
Apr. 23, 2019
Filed:
Feb. 26, 2014
Katrin Marie Dyballa, Recklinghausen, DE;
Robert Franke, Marl, DE;
Dirk Fridag, Haltern am See, DE;
Siegfried R. Waldvogel, Gau-Algesheim, DE;
Bernd Elsler, Bonn, DE;
Katrin Marie Dyballa, Recklinghausen, DE;
Robert Franke, Marl, DE;
Dirk Fridag, Haltern am See, DE;
Siegfried R. Waldvogel, Gau-Algesheim, DE;
Bernd Elsler, Bonn, DE;
Evonik Degussa GmbH, Essen, DE;
Abstract
An electrochemical method for coupling anilines. When coupling two different anilines, the difference of the oxidation potential of the substrates is in the region of between 10 mV to 450 mV, and the aniline with the highest oxidation potential is added in excess. The method allows biaryldiamines to be electrochemically produced, and can avoid the need for multi-step syntheses using metallic reagents.