5-azido- or 5-phosphoroimido-1-arylpyrazoles, composition containing them, and herbicidal and plant growth regulating methods of using them

US4770688A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Reinhold Gehring · Wuppertal, DE
• Markus Lindig · Hilden, DE
• Otto Schallner · Monheim, DE
• Jorg Stetter · Wuppertal, DE
• Hans-Joachim Santel · Leverkusen, DE
• Robert R. Schmidt · Cologne, DE
• Klaus Lurssen · Wittlich, DE

Key dates

• Filing date: Dec 16, 1986
• Grant date: Sep 13, 1988
• Expiry date: Dec 16, 2006

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07F9/65031
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A 1-aryl-pyrazole of the formula ##STR1## in which R represents cyano or nitro, PA0 Ar represents in each case optionally substituted phenyl or pyridyl, PA0 X represents an azido group, or represents the radical ##STR2## and R.sup.1, R.sup.2 and R.sup.3 each independently represents alkyl, alkenyl, alkinyl, halogenoalkyl, alkoxy, alkoxyalkyl, cycloalkyl or cycloalkyloxy, or represents in each case optionally substituted aryl, aryloxy, aralkyl or aralkyloxy, but wherein, in the case where R represents cyano and X simultaneously represents an azido group, Ar does not represent unsubstituted phenyl and does not represent 5-nitro-2-pyridyl. The compounds exhibit herbicidal and plant growth-regulating activity.