2-benzoylcyclohexane-1,3-dione as herbicides

US6432881B1 · kind B1 · utility

Assignee

• BASF SE

Inventors

• Stefan Engel · Idstein, DE
• Joachim Rheinheimer · Ludwigshafen, DE
• Ernst Baumann · Dudenhofen, DE
• Wolfgang von Deyn · Neustadt, DE
• Regina Luise Hill · Speyer, DE
• Guido Mayer · Neheim, DE
• Ulf Misslitz · Neustadt, DE
• Oliver Wagner · Ludwigshafen, DE
• Matthias Witschel · Bad Dürkheim, DE
• Martina Otten · Ludwigshafen, DE
• Helmut Walter · Obrigheim, DE
• Karl-Otto Westphalen · Speyer, DE

Key dates

• Filing date: Feb 7, 2000
• Grant date: Aug 13, 2002
• Expiry date: Mar 3, 2020

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D333/16
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

2-Benzoylcyclohexane-1,3-diones of formula I : where:R1 and R2 are each hydrogen, mercapto, nitro, halogen, cyano, thiocyanato, alkyl, haloalkyl, alkoxy, alkenyl, alkynyl, —OR3, —OCOR3, —OSO2R3, —S(O)nR3 (n=0, 1, 2), —SO2OR3, —SO2N(R3)2, —NR3SO2R3 or —NR3COR3;R3 is hydrogen or optionally substituted alkyl, haloalkyl, alkenyl, alkynyl, phenyl or phenylalkyl;Q is optionally substituted cyclohexane-2-yl-1,3-dione;X1 is optionally substituted alkylene, propenylene, alkenylene or alkynylene;R4 is hydrogen or optionally substituted alkyl, alkenyl, alkynyl, phenyl, phenylalkyl;Het is a three- to six-membered, optionally substituted heterocyclic or heteroaromatic group;and agriculturally useful salts thereof, processes and intermediates for preparing compounds of formula I, compositions comprising them, and the use of the compounds of formula I and the compositions comprising them for controlling harmful plants are described.