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. 24, 2022
Filed:
Apr. 02, 2019
Bayer Aktiengesellschaft, Leverkusen, DE;
Bayer Cropscience Aktiengesellschaft, Monheim am Rhein, DE;
Taraneh Farida, Pulheim-Geyen, DE;
Martin Littmann, Leverkusen, DE;
Ali Sanli, Leverkusen, DE;
Kyra Larissa Pabst, Cologne, DE;
Juergen Ludwig, Odenthal, DE;
Albert Schnatterer, Leverkusen, DE;
Bayer Aktiengesellschaft, Leverkusen, DE;
Bayer CropScience Aktiengesellschaft, Monheim am Rhein, DE;
Abstract
The present invention relates to a novel, one-stage method for preparing and isolating 3,4-dichloro-N-(2-cyanophenyl)-5-isothiazolecarboxamide (isotianil), which has microbicidal and plant-fortifying (host defence inducer) properties. In the method according to the invention, the amount of waste from the production process (e.g. solvent) is significantly reduced. The product is provided in high yield and purity (minimal amount of by-products and impurities). Compared to existing preparation methods, the method according to the invention has the advantage of low corrosiveness and high yield and high selectivity.