5-amino-1-pyridyl-pyrazoles, composition containing them, and herbicidal method of using them

US4772312A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Otto Schallner · Monheim, DE
• Reinhold Gehring · Wuppertal, DE
• Jorg Stetter · Wuppertal, DE
• Hans-Joachim Santel · Leverkusen, DE
• Robert R. Schmidt · Cologne, DE

Key dates

• Filing date: May 22, 1986
• Grant date: Sep 20, 1988
• Expiry date: May 22, 2006

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A01N43/56
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Herbicidally active novel 5-amino-1-pyridyl-pyrazoles of the formula ##STR1## in which R.sup.1 represents hydrogen or represents alkyl with 1 to 12 carbon atoms, PA1 R.sup.2 represents hydrogen, nitro, nitroso or halogen, or represents a radical ##STR2## wherein R.sup.5 represents hydrogen, hydroxyl, alkyl, alkenyl, alkinyl, halogenoalkyl, alkoxyalkyl or alkylthioalkyl, or represents optionally substituted cycloalkyl, or represents optionally substituted aryl, or represents alkoxy or alkylthio, or represents optionally substituted aryloxy, or represents optionally substituted arylthio, or represents alkylamino or dialkylamino, or represents optionally substituted arylamino, PA1 R.sup.3 represents hydrogen, or represents a radical ##STR3## or represents a radical --S(O).sub.n --R.sup.7, R.sup.4 represents hydrogen, or represents alkyl, or represents a radical ##STR4## or represents a radical --S(O).sub.n --R.sup.7, and, in the case where R.sup.3 represents an --SO.sub.2 --R.sup.7 radical, also represents an inorganic or organic cation bonded in salt form, and PA1 R.sup.6 represents hydrogen, alkyl, alkenyl, alkinyl, halogenoalkyl, alkoxyalkyl or alkylthioalkyl, or represents optiona…