3-aryl-tetronic acid derivatives, the production thereof and the use thereof as antiparasitic agents

US5830825A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Reiner Fischer · Monheim, DE
• Thomas Bretschneider · Lohmar, DE
• Gunther Beck · Leverkusen, DE
• Hermann Hagemann · Leverkusen, DE
• Christoph Erdelen · Leichlingen, DE
• Ulrike Wachendorff-Neumann · Neuwied, DE
• Wolfram Andersch · Bensberg, DE
• Norbert Mencke · Leverkusen, DE
• Andreas Turberg · Haan, DE

Key dates

• Filing date: Jun 17, 1997
• Grant date: Nov 3, 1998
• Expiry date: Jun 17, 2017

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07F9/6561
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The present invention relates to new 3-aryl-4-hydroxy-.DELTA..sup.3 -dihydrofuranone derivatives of the formula (I) ##STR1## in which A and B together with the carbon atom to which they are bonded form an unsubstituted or substituted 5- to 7-membered ring which is interrupted by at least one hetero atom, PA1 X represents alkyl, halogen or alkoxy, PA1 Y represents hydrogen, alkyl, halogen, alkoxy or halogenoalkyl, PA1 Z represents alkyl, halogen or alkoxy, PA1 n represents a number 0, 1, 2 or 3, PA1 G represents hydrogen (a) or one of the groups ##STR2## E represents a metal Ion equivalent or an ammonium ion, L represents oxygen or sulphur, PA2 M represents oxygen or sulphur and PA2 R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6 and R.sup.7 have the meanings given in the description, to processes for their preparation, and to their use as pesticides.