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:
Jul. 10, 2007
Filed:
Oct. 31, 2002
Horst Mayer, Guaratingueta, BR;
Dieter Golsch, Mannheim, DE;
Heinz Isak, Böhl-Iggelheim, DE;
Jochen Schröder, Lambsheim, DE;
Horst Mayer, Guaratingueta, BR;
Dieter Golsch, Mannheim, DE;
Heinz Isak, Böhl-Iggelheim, DE;
Jochen Schröder, Lambsheim, DE;
BASF Aktiengesellschaft, Ludwigshafen, DE;
Abstract
The invention relates to a process for preparing 2-halopyridinecarboxamides of primary aromatic monoamines I which have a substituent other than hydrogen in the ortho-position to the amino group by reaction of 2-halopyridinecarbonyl chloride II with the aromatic monoamine I, which comprises carrying out the reaction in a solvent mixture comprising water and at least one water-immiscible organic solvent in the presence of none or less than 10 mol %, based on the 2-halopyridinecarbonyl chloride II, of a base other than I or II.