Herbicides

US4889553A · kind A · utility

Assignee

• Schering Agrochemicals Limited · GB

Inventors

• Graham P. Rowson · Hundon, GB
• John Clifford Head · Maidenhead, GB
• Jurgen Westermann · Berlin, DE
• Martin Kruger · Berlin, DE
• Friedrich Arndt · Berlin, DE
• Richard Rees · Berlin, DE

Key dates

• Filing date: May 15, 1987
• Grant date: Dec 26, 1989
• Expiry date: May 15, 2007

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D417/12
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Herbicidal triazole sulphonamides of the formula: ##STR1## and salts thereof, where: R.sup.1 represents hydrogen or a substituted or unsubstituted alkyl, alkenyl, alkynyl, cycloalkyl, aryl, aralkyl, acyl, alkoxycarbonyl, aminocarbonyl, sulphonyl or heterocyclic group; PA1 R.sup.2 represents hydrogen, halo, cyano, hydroxy, mercapto, a substituted or unsubstituted alkyl, alkenyl, alkynyl, alkoxy, alkylthio, alkylsulphinyl, alkylsulphonyl, acyl, alkoxycarbonyl, aminocarbonyl, aryl or amino group, or a heterocyclic group; PA1 R.sup.3 represents a substituted or unsubstituted heterocyclic, benzheterocyclic, aryl or aralkyl group; and PA1 R.sup.4 represents hydrogen, a substituted or unsubstituted alkyl, alkenyl, alkynyl, acyl, aroyl, alkylsulphonyl, alkoxycarbonyl, aminocarbonyl, aralkyl, or a group of the formula: ##STR2## where R.sup.1 and R.sup.2 are as defined hereinbefore, processes for their preparation and compositions containing them.