Patent · US Active

Method for producing 3,4-dichloro-N-(2-cyanophenyl)-5-isothiazolecarboxamide

US11339137B2 · kind B2 · utility

0Cited by

6References

15Claims

0Family size

Assignees

BAYER HEALTHCARE LLC · DE
BAYER CROPSCIENCE AKTIENGESELLSCHAFT · DE

Inventors

Taraneh Farida · Pulheim, DE
Martin Littmann · Middletown, US
Ali Sanli · Leverkusen, DE
Kyra Larissa Pabst · Cologne, DE
Juergen Ludwig · Odenthal, DE
Albert Schnatterer · Leverkusen, DE

Key dates

Filing date	Apr 2, 2019
Grant date	May 24, 2022
Priority date	—
Expiry date	Apr 2, 2039

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07D275/03
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.