Patent · US Active

Process for preparing 3,4-dichloro-n-(2-cyanophenyl)-5-isothiazolecarboxamide

US11220487B2 · kind B2 · utility

0Cited by

7References

20Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Taraneh Farida · Pulheim, DE
Martin Littmann · Middletown, US
Daniel Hartmann · South Haven, US
Kyra Larissa Pabst · Cologne, DE
Ali Sanli · Leverkusen, DE

Key dates

Filing date	Jun 11, 2018
Grant date	Jan 11, 2022
Priority date	—
Expiry date	Aug 16, 2038

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07B43/08
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The present invention relates to a novel process for preparing and isolating 3,4-dichloro-N-(2-cyanophenyl)-5-isothiazolecarboxamide (Isotianil), which can be used as an active compound with microbicidal properties, wherein the amount of waste materials—e.g. solvents and diluents—is significantly reduced and the process meets the requirements of industrial scale production, in particular that it provides the product in high yield, high purity, i.e. minimum amount of by-products and impurities, and can be carried out with tolerable corrosivity in industrial scale metal, in particular stainless steel, vessels or Cr—Ni—Mo alloy pressure filters or centrifuges.

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