Benzoylparabanic acids

US4515798A · kind A · utility

Assignee

• Ciba-Geigy · US

Inventors

• Manfred Boger · Weil am Rhein, DE
• Jozef Drabek · Oberwil, CH

Key dates

• Filing date: Jun 23, 1983
• Grant date: May 7, 1985
• Expiry date: Jun 23, 2003

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A01N43/50
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Novel substituted 1-pyridyloxyphenyl-3-benzoylparabanic acids of the formula ##STR1## wherein R.sub.1 is hydrogen, halogen or C.sub.1 -C.sub.4 alkyl, R.sub.2 and R.sub.3, each independently of the other, are halogen or C.sub.1 -C.sub.4 alkyl, R.sub.4 is hydrogen or halogen, R.sub.5 is halogen or C.sub.1 -C.sub.4 alkyl which is halogenated by fluorine and/or chlorine, and n is 0, 1 or 2, and the pyridyloxy group is linked to the phenyl group in the 3- or 4-position. A process for the preparation of these compounds and compositions containing them for use in pest control, especially for controlling insects which attack plants and animals, are disclosed. The novel compounds are particularly effective against plant-destructive insects, especially when employed as ovicides.