Phosphoric benzoyl derivatives and their use as herbicides

US6613717B1 · kind B1 · utility

Assignee

• BASF SE

Inventors

• Klaus Langemann · Worms, DE
• Thorsten Volk · Mannheim, DE
• Ernst Baumann · Dudenhofen, DE
• Wolfgang von Deyn · Neustadt, DE
• Steffen Kudis · Mannheim, DE
• Guido Mayer · Neheim, DE
• Ulf Misslitz · Neustadt, DE
• Ulf Neidlein · Mannheim, DE
• Matthias Witschel · Bad Dürkheim, DE
• Martina Otten · Ludwigshafen, DE
• Karl-Otto Westphalen · Speyer, DE
• Helmut Walter · Obrigheim, DE

Key dates

• Filing date: Oct 29, 2001
• Grant date: Sep 2, 2003
• Expiry date: Oct 29, 2021

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07F9/65785
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Phosphorus-containing benzoyl derivatives of the formula I where:P(═X)R1R2X is an organic phosphorus radical;R3 is hydrogen, nitro, cyano, halogen, unsub. or sub. alkyl, alkylcarbonyl, alkoxycarbonyl, unsub. or sub. alkoxy, unsub. or sub. alkylthio, unsub. or sub. alkylsulfinyl, unsub. or sub. alkylsulfonyl, unsub. or sub. aminosulfonyl, unsub. or sub. amino, P(═X)R1R2, unsub. or sub. phenyl or unsub. or sub. heterocyclyl;R4 is nitro, cyano, halogen, alkyl, alkoxy, alkylthio, alkylsulfinyl or alkylsulfonyl;l is 0, 1 or 2;Q is unsub. or sub. 1-hydroxy-3-oxocyclohex-1-en-2-yl, unsub. or sub. 5-hydroxypyrazol-4-yl, unsub. or sub. isoxazol-4-yl or unsub. or sub. 2-cyano-1-oxoeth-2-yl;and their agriculturally useful salts;processes and intermediates for preparing the phosphorus-containing benzoyl derivatives; compositions comprising them and the use of these derivatives or the compositions comprising them for controlling undesirable plants are described.