Pest-combating agents based on substituted 1,4-naphthoquinones and new substituted 1,4-naphthoquinones

US4970328A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Werner Lindner · Eppstein, DE
• Benedikt Becker · Mettmann, DE
• Robert Steffens · Cologne, DE
• Ulrike Wachendorff-Neumann · Neuwied, DE
• Wilhelm Brandes · Leichlingen, DE
• Wilhelm Stendel · Wuppertal, DE
• Stefan Dutzmann · Goldkronach, DE

Key dates

• Filing date: Jan 24, 1990
• Grant date: Nov 13, 1990
• Expiry date: Jan 24, 2010

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C2602/10
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A method of combating agricultural pests comprising applying a pesticidally effective amount of a substituted 1,4-naphthoquinone on agricultural pests and/or their environment, said 1,4-naphthoquinone being of the formula ##STR1## in which n represents the number zero or a number from 1 to 12, PA0 R.sup.1 represents hydrogen, or represents an unsubstituted or substituted radical R selected from the group consisting of alkyl, aralkyl, alkylcarbonyl, alkoxycarbonyl, alkylsulphonyl and arylsulphonyl, and PA0 R.sup.2 represents halogenoalkyl, unsubstituted or substituted aryl or substituted cycloalkyl. A substituted 1,4-naphthoquinone of the formula ##STR2## in which m represents the number 0 or a number from 1 to 12, PA0 A.sup.1 represents hydrogen, methyl, benzyl, acetyl, methoxycarbonyl, benzenesulphonyl or toluenesulphonyl and PA0 A.sup.2 represents trifluoromethyl, 3-trifluoromethylcyclohexyl, 3-trifluoromethyl-phenyl, 4-trimethylsilyl-cyclohexyl or 4-trifluoromethylthiophenyl, with the proviso that m is other than 0 and 2 if A.sup.2 represents 3-trifluoromethyl-cyclohexyl or 3-trifluoromethyl-phenyl.