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:
Jan. 08, 2008
Filed:
May. 09, 2003
Sergiy Pazenok, Solingen, DE;
Sergiy Pazenok, Solingen, DE;
Bayer Cropscience AG, Monheim, DE;
Abstract
The invention relates to a method for producing 4-haloalkylnicotinamides having the formula (I): wherein Ris (C-C)haloalky, comprising subjecting one or more 3-((C-C)haloalkyl-3-oxo-1-alkenylamino)nitriles of the formula (II), (III) or (IV):R—C(O)—CH═CH—NH—CH═CH—CN  (II)R—C(O)—CH═CH—NH—CH(ZR)—CH—CN  (III)R—C(O)—CH═CH—NH—CH(Hal)—CH—CN  (IV)where Ris as defined above, Ris the same or different and is (C-C)-alkyl and Z is the same or different and is O, S or NR, to a ring-closing reaction and simultaneous hydrolysis in the presence of a strong acid.