Combating arthropods with fluorine-substituted spiro-carboxylic acid benzyl esters

US4317834A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Rainer Fuchs · Halver, DE
• Klaus Naumann
• Ingeborg Hammann · Cologne, DE
• Bernhard Homeyer · Leverkusen, DE
• Wolfgang Behrenz · Overath, DE
• Wilhelm Stendel · Wuppertal, DE

Key dates

• Filing date: Nov 3, 1980
• Grant date: Mar 2, 1982
• Expiry date: Nov 3, 2000

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A01N53/00
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Fluorine-substituted spirocarboxylic acid benzyl esters of the formula ##STR1## in which R.sup.1 represents hydrogen, cyano or alkyl, alkenyl or alkynyl, with in each case up to 4 carbon atoms, PA0 R.sup.2 represents a phenyl radical which is substituted by halogen and/or by optionally halogen-substituted phenoxy, with the proviso that the radical R.sup.2 contains in total at least one fluorine substituent, and PA0 R.sup.3, R.sup.4, R.sup.5 and R.sup.6 each represent hydrogen, halogen or alkyl, or PA0 R.sup.3 and R.sup.4, taken together, and/or R.sup.5 and R.sup.6, taken together, represent alkanediyl (alkylene) or a fused-on benzo radical, and the C atoms of the 5-member spirocyclic ring are linked to one another either by double bonds or by single bonds, which possess arthropodicidal properties.