Herbicidal n-cyanopyridazinones

US5462914A · kind A · utility

Assignee

• Sandoz AG · CH

Inventors

• Harald Leitner · Traun, AT
• Rudolf H. Worther · Linz, AT
• Horst Korntner · Linz, AT
• Rudolf Schneider · Meckenbeuren, DE
• Engelbert Auer · Leonding, AT
• Dietmar Kores · Leonding, AT
• Hermann Tramberger · Steyr, AT

Key dates

• Filing date: Apr 1, 1994
• Grant date: Oct 31, 1995
• Expiry date: Apr 1, 2014

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D237/16
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Novel herbicidal N-cyanopyridazinones of the general formula ##STR1## in which the radicals R.sub.1, R.sub.2 and R.sub.3 independently of one another denote hydrogen, halogen, amino, nitro, cyano, alkyl, aryl, aralkyl, alkoxy or aryloxy groups, a process for their preparation, a herbicidal composition comprising them, and a method of controlling weeds.