Patent · US Expired

Herbicidally active novel hetero-substituted pyrid-4-one derivatives

US4451282A · kind A · utility

4Cited by

2References

9Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Hans-Joachim Knops · Wuppertal, DE
Peter Babczinski · Wuppertal, DE
Ludwig Eue
Robert R. Schmidt · Cologne, DE

Key dates

Filing date	Aug 26, 1982
Grant date	May 29, 1984
Priority date	—
Expiry date	Aug 26, 2002

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07D401/04
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

Hetero-substituted pyrid-4-one derivatives of the general formula ##STR1## in which R.sup.1 represents an optionally substituted phenyl radical, PA1 R.sup.2 represents an alkyl, alkenyl, alkinyl, alkoxy, alkoxyalkyl or dialkylamino radical, and PA1 R.sup.3 and R.sup.4, together with the nitrogen atom to which they are bonded, represent an optionally substituted heterocyclic radical, are novel, are produced as described and find use as herbicides, especially as selective herbicides for combating graminaceous weeds in crops such as cotton, wheat, soy beans and corn.

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