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

US4929642A · 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: Jun 29, 1988
• Grant date: May 29, 1990
• Expiry date: Jun 29, 2008

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 pest 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, PA1 R.sup.1 represents hydrogen, t-butylcarbonyl or acetyl and PA1 R.sup.2 represents phenyl which is substituted by bromine, fluorine, chlorine, trifluoromethyl, trifluoromethoxy, trifluoromethylsulphenyl, trifluoromethylsulphonyl or trimethylsilyl or cyclohexyl which is substituted by methyl, trifluoromethyl or trimethylsilyl or PA1 R.sup.2 represents C.sub.1 -C.sub.8 -alkyl which is substituted by fluorine, chlorine or bromine.