Substituted 1-aryl-3-tert.-butyl-pyrazoles

US4826867A · 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
• Benedikt Becker · Mettmann, DE
• Wolfgang Behrenz · Overath, DE
• Wilhelm Stendel · Wuppertal, DE

Key dates

• Filing date: Aug 25, 1987
• Grant date: May 2, 1989
• Expiry date: Aug 25, 2007

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D401/04
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Insecticidally and acaricidally active novel 1-aryl-3-tert.-butyl-pyrazoles of the formula ##STR1## in which R.sup.1 represents nitro or halogen, PA0 R.sup.2 represents halogen or the --NR.sup.3 R.sup.4 group, and also may represent hydrogen when R.sup.1 denotes halogen, PA1 where PA2 R.sup.3 represents hydrogen, in each case optionally substituted alkyl, alkenyl or alkinyl, and in each case optionally substituted cycloalkyl or cycloalkylalkyl and PA2 R.sup.4, independently of R.sup.3, represents the same radicals as R.sup.3l , and, in addition, a ##STR2## radical, where X represents oxygen or sulphur and PA2 R.sup.5 represents hydrogen, alkyl, alkenyl, alkinyl, halogenoalkyl, alkoxyalkyl, alkylthioalkyl, optionally substituted cycloalkyl, optionally substituted aryl, alkoxy, alkylthio, optionally substituted aryloxy, optionally substituted arylthio, alkylamino, dialkylamino or optionally substituted arylamino; and PA0 Ar represents optionally substituted phenyl, apart from dinitrophenyl, or optionally substituted pyridyl. Intermediates where R.sup.1 is replaced by hydrogen are also new and are also pesticidally active.