5-Heterocyclyl-1-aryl-pyrazoles, composition containing them, and method of using them to combat insects, acarids and nematodes

US4803215A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Uta Jensen-Korte · Düsseldorf, DE
• Reinhold Gehring · Wuppertal, DE
• Otto Schallner · Monheim, DE
• Jorg Stetter · Wuppertal, DE
• Heinz-Jurgen Wroblowsky · Langenfeld, DE
• Benedikt Becker · Mettmann, DE
• Bernhard Homeyer · Leverkusen, DE
• Wolfgang Behrenz · Overath, DE
• Wilhelm Stendel · Wuppertal, DE

Key dates

• Filing date: Dec 16, 1986
• Grant date: Feb 7, 1989
• Expiry date: Dec 16, 2006

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D403/04
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Pesticidally active 5-heterocyclyl-1-aryl-pyrazoles of the formula ##STR1## in which R.sup.1 represents hydrogen, alkyl or haloalkyl, PA0 R.sup.2 represents alkyl, alkenyl, alkinyl, cycloalkyl, haloalkyl, haloalkenyl, optionally substituted aralkyl or optionally substituted aryl, PA0 Ar represents in each case optionally substituted phenyl or pyridyl, PA0 Het represents a heterocycle of the formula ##STR2## n represents a number 0, 1 or 2, where PA0 R.sup.3 and R.sup.4, independently of one another, represent in each case hydrogen, alkyl or phenyl. Intermediates of the formulas ##STR3## are provided, the former also being pesticidal.