Patent · US Active

Process for preparing 4-amino-pyridazines

US11046656B2 · kind B2 · utility

1Cited by

7References

5Claims

0Family size

Assignee

BASF SE

Inventors

Eric George Klauber · Bad Dürkheim, DE
Michael Rack · Eppelheim, DE
Roland Goetz · Ludwigshafen, DE
Sebastian Soergel · Ludwigshafen, DE

Key dates

Filing date	Dec 31, 2019
Grant date	Jun 29, 2021
Priority date	—
Expiry date	Dec 31, 2039

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07D403/12
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

Provided herein is a process for preparing a pyridazine amine compound of formula V, and a process for preparing dichloropyridazine amine compounds of formula IVa, IVb, and mixtures thereof. Further, provided herein are novel dichloropyridazine amine compounds of formula IVa, IVb, and mixtures thereof, wherein the amino group is an ethylamino group.

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