Substituted furazans and insecticidal and acaricidal use

US4853397A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Wilhelm Sirrenberg
• Albrecht Marhold · Leverkusen, DE
• Robert Steffens · Cologne, DE

Key dates

• Filing date: Jun 25, 1987
• Grant date: Aug 1, 1989
• Expiry date: Jun 25, 2007

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D271/08
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Insecticidal and acaricidal novel substituted furazans of the formula ##STR1## n which R.sup.1 and R.sup.2 are identical or different and represent hydrogen, halogen, alkyl, alkoxy, alkylthio, halogenoalkyl, halogenoalkoxy, halogenoalkylthio or optionally substituted aryloxy, or PA1 R.sup.1 and R.sup.2 together represent an optionally substituted alkylene radical which is interrupted by 1 or 2 oxygen atoms or is bonded to the phenyl radical via 1 or 2 oxygen atoms, PA1 R.sup.3 and R.sup.4 are identical or different and represent hydrogen, halogen, alkyl, alkoxy, halogenoalkyl or halogenoalkoxy, PA1 R.sup.5 represents optionally substituted cycloalkyl, and PA1 X represents oxygen or sulphur. Intermediates of the formula ##STR2## in which B is --NH.sub.2, --NO.sub.2 or --NCX, PA1 R.sup.3 and R.sup.4 are identical or different and represent hydrogen, halogen, alkyl, alkoxy, halogenoalkyl or halogenoalkoxy, PA1 R.sup.6 represents 2,2-difluoro-1-methylcycloprop-1-yl or the ##STR3## radical, Y represents hydrogen, methyl, fluorine or chlorine, and PA1 Y.sup.1 and Y.sup.2 are identical or different and represent fluorine or chlorine, are also new.