Substituted 2-(benzoaryl)pyridines

US6383986B1 · kind B1 · utility

Assignee

• BASF SE

Inventors

• Markus Menges · Bensheim, DE
• Gerhard Hamprecht · Weinheim, DE
• Olaf Menke · Altleiningen, DE
• Robert Reinhard · Schifferstadt, DE
• Peter Schafer · Ottersheim, DE
• Cyrill Zagar · Ludwigshafen, DE
• Karl-Otto Westphalen · Speyer, DE
• Martina Otten · Ludwigshafen, DE
• Helmut Walter · Obrigheim, DE

Key dates

• Filing date: Jan 11, 2000
• Grant date: May 7, 2002
• Expiry date: Jan 11, 2020

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D417/04
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

2-(Benzaryl)pyridines I and salts thereof wheren=zero, 1;R1=H, CN, NO2, NH2, OH, SH, SO2—OH, SO2—Cl, SO2—NH2, halogen, optionally halogenated alkyl, alkoxy, alkylthio, alkylsulfinyl, alkylsulfonyl, alkylaminosulfonyl, dialkylaminosulfonyl;R2, R3=H, halogen;R4=CN, OH, halogen, alkoxy or optionally substituted benzyloxy;X=—Y—C(ZR5)═N— where the nitrogen is attached to &agr; or &bgr; and Y=—O—, —S—, —N(R6)—;Z=a chemical bond, —O—, —S—, —S(O)—, —SO2—, —N(R7)—;R5, R6, R7=H, optionally substituted alkyl, alkenyl, alkynyl, cycloalkyl, phenyl or 3- to 7-membered heterocyclyl; orR5=H, CN, SH, NH2, halogen, —CH2—CH(halogen)-R8, —CH═CH—R8 or —CH═C(halogen)-R8 (R8=COOH, alkoxycarbonyl, alkylthiocarbonyl, CONH2, alkylaminocarbonyl or dialkylaminocarbonyl), when Z=a chemical bond; orR5+R7=1,3-propylene, tetramethylene, pentamethylene or ethyleneoxyethylene.Use: as herbicides, desiccants or defoliants.