Patent · US Active

Method for producing substituted anthranilic acid derivatives

US9969717B2 · kind B2 · utility

0Cited by

7References

7Claims

0Family size

Assignee

Bayer Intellectual Property GmbH · DE

Inventors

Thomas Himmler · Odenthal, DE
Sergii Pazenok · Solingen, DE
Frank Volz
Norbert Lui · Odenthal, DE

Key dates

Filing date	Apr 20, 2017
Grant date	May 15, 2018
Priority date	—
Expiry date	Apr 20, 2037

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C255/60
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The present invention relates to a process for preparing substituted anthranilic acid derivatives of the formula (I)in which R1, R2, R3 and R4 are each as defined in the description, by conversion of compounds of the general formula (IV) in the presence of a palladium catalyst and carbon monoxide. The present invention likewise relates to compounds of the general formula (IV).

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