Substituted 2-phenylpyridines as herbicides

US6010980A · kind A · utility

Assignee

• BASF SE

Inventors

• Peter Schafer · Ottersheim, DE
• Gerhard Hamprecht · Weinheim, DE
• Elisabeth Heistracher · Ludwigshafen, DE
• Olaf Menke · Altleiningen, DE
• Cyrill Zagar · Ludwigshafen, DE
• Michael Rack · Eppelheim, DE
• Norbert Gotz · Worms, DE
• Albrecht Harreus · Ludwigshafen, DE
• Karl-Otto Westphalen · Speyer, DE
• Helmut Walter · Obrigheim, DE
• Ulf Misslitz · Neustadt, DE

Key dates

• Filing date: Mar 13, 1998
• Grant date: Jan 4, 2000
• Expiry date: Mar 13, 2018

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A01N43/40
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Substituted 2-phenylpyridines I and their salts ##STR1## where n=0, 1; PA1 R.sup.1 =halogen, C.sub.1 -C.sub.4 -haloalkyl; PA1 R.sup.2 and R.sup.3 =H, halogen; PA1 R.sup.4 =CN, halogen; PA1 R.sup.5 =--CO--O-(C.sub.1 -C.sub.4 -alkylene)-CO--OR.sup.6, --CO--O-(C.sub.1 -C.sub.4 -alkylene)-CO--N(R.sup.7)R.sup.8, --O-(C.sub.1 -C.sub.4 -alkylene)-CO--O-(C.sub.1 -C.sub.4 -alkylene)-CO--OR.sup.6, --O-(C.sub.1 -C.sub.4 -alkylene)-CO--O-(C.sub.1 -C.sub.4 -alkylene)-CO--N(R.sup.7) R.sup.8, --S-(C.sub.1 -C.sub.4 -alkylene)-CO--O-(C.sub.1 -C.sub.4 -alkylene)-CO--OR.sup.6 or --S-(C.sub.1 -C.sub.4 -alkylene)-CO--O-(C.sub.1 -C.sub.4 -alkylene)-CO--N(R.sup.7)R.sup.8 ; PA1 R.sup.6 =H, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy-C.sub.1 -C.sub.4 -alkyl, C.sub.2 -C.sub.4 -alkenyl, C.sub.3 -C.sub.4 -alkynyl; PA1 R.sup.7 =H, C.sub.1 -C.sub.4 -alkyl, carboxy-C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxycarbonyl-C.sub.1 -C.sub.4 -alkyl; PA1 R.sup.8 =H or C.sub.1 -C.sub.4 -alkyl, are used as herbicides and for the desiccation/defoliation of plants.