Substituted benzoyl ketones, methods for producing them and their use as herbicides

US6762152B1 · kind B1 · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Klaus-Helmut Muller · Düsseldorf, DE
• Stefan Lehr · Leverkusen, DE
• Otto Schallner · Monheim, DE
• Hans-Georg Schwarz · Dorsten, DE
• Heinz-Jurgen Wroblowsky · Langenfeld, DE
• Mark Wilhelm Drewes · Langenfeld, DE
• Dieter Feucht · Eschborn, DE
• Rolf Pontzen · Leichlingen, DE
• Ingo Wetcholowsky · Mangaratiba, BR

Key dates

• Filing date: Nov 5, 2001
• Grant date: Jul 13, 2004
• Expiry date: Nov 5, 2021

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D487/04
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to novel substituted benzoyl ketones of the formula (I) in whichn represents 0, 1, 2 or 3,A represents a single bond or represents alkanediyl (alkylene),R1 represents hydrogen or represents in each case optionally substituted alkyl or cycloalkyl,R2 represents hydrogen, cyano, carbamoyl, halogen, or represents in each case optionally substituted alkyl, alkoxy, alkoxycarbonyl, alkylthio, alkylsulphinyl or alkylsulphonyl,R3 represents hydrogen, nitro, cyano, carboxyl, carbamoyl, thiocarbamoyl, halogen, or represents in each case optionally substituted alkyl, alkoxy, alkylthio, alkylsulphinyl, alkylsulphonyl, alkylamino, dialkylamino or dialkylaminosulphonyl,R4 represents nitro, cyano, carboxyl, carbamoyl, thiocarbamoyl, halogen, or represents in each case optionally substituted alkyl, alkoxy, alkylthio, alkylsulphinyl, alkylsulphonyl, alkylamino, dialkyiamino or dialkylaminosulphonyl, andZ represents an optionally substituted 4- to 12-membered, saturated or unsaturated, monocyclic or bicyclic, heterocyclic grouping which, contains 1 to 4 hetero atoms (up to 4 nitrogen atoms and optionally—alternatively or additionally—one oxygen atom or one sulphur at…