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:
Nov. 26, 2013
Filed:
Mar. 14, 2013
Applicant:
Bayer Cropscience Ag, Monheim, DE;
Inventors:
Sergii Pazenok, Solingen, DE;
Norbert Lui, Odenthal, DE;
Jens-Dietmar Heinrich, Burscheid, DE;
Thomas Wollner, Köln, DE;
Assignee:
Bayer Intellectual Property GmbH, Monheim, DE;
Primary Examiner:
Int. Cl.
CPC ...
C07C 251/86 (2006.01); C07C 229/34 (2006.01); C07C 255/32 (2006.01); C07D 231/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to a process for the regioselective synthesis of 1-alkyl-3-halo-alkylpyrazole-4-carboxylic acid derivatives by cyclization of 2,3-disubstituted acrylic acid derivatives, and to the hydrazones formed as intermediates in the process.