5-acylamido-1-aryl-pyrazoles, composition containing them and herbicidal method of using them

US4734125A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Reinhold Gehring · Wuppertal, DE
• Otto Schallner · Monheim, DE
• Jorg Stetter · Wuppertal, DE
• Hans-Joachim Santel · Leverkusen, DE
• Robert R. Schmidt · Cologne, DE

Key dates

• Filing date: Jan 8, 1987
• Grant date: Mar 29, 1988
• Expiry date: Jan 8, 2007

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D231/40
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Herbicidally active 5-acylamido-1-aryl-pyrazoles of the formula ##STR1## in which R.sup.1 represents hydrogen, halogen or nitro, PA0 R.sup.2 represents hydrogen or alkyl, PA0 X represents oxygen or sulphur, PA0 Y represents oxygen, sulphur, a sulphinyl group or a sulphonyl group, PA0 A represents a straight-chain or branched, optionally substituted alkylene bridge, PA0 Ar.sup.1 represents in each case optionally substituted aryl or heteroaryl, and PA0 Ar.sup.2 represents in each case optionally substituted phenyl or pyridyl.