N-phenylsulfonyl-N'-triazinylureas

US4618363A · kind A · utility

Assignee

• Ciba-Geigy · US

Inventors

• Karl Gass · Magden, CH
• Werner Fory · Riehen, CH
• Willy Meyer · Riehen, CH
• Werner Topfl · Dornach, CH

Key dates

• Filing date: Jan 18, 1983
• Grant date: Oct 21, 1986
• Expiry date: Jan 18, 2003

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D521/00
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

N-Phenylsulfonyl-N'-pyrimidinylureas and -N'-triazinylureas of the general formula ##STR1## and the salts of these compounds with amines, alkali metal bases and alkaline earth metal bases or with quaternary ammonium bases, have good selective herbicidal and plant growth regulating properties when applied pre- and postemergence. In the formula PA0 R.sub.1 is hydrogen, halogen, nitro, C.sub.1 -C.sub.4 haloalkyl, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, C.sub.2 -C.sub.5 alkenyl or C.sub.1 -C.sub.4 alkoxycarbonyl, PA0 R.sub.2 is C.sub.1 -C.sub.3 alkyl or C.sub.1 -C.sub.3 alkoxy, each unsubstituted or substituted by 1 to 3 halogen atoms, PA0 R.sub.3 is halogen, hydrogen, --NR.sub.4 R.sub.5, C.sub.1 -C.sub.3 alkyl, unsubstituted or substituted by 1 to 3 halogen atoms or C.sub.1 -C.sub.4 alkoxy, or is C.sub.1 -C.sub.3 alkoxy, unsubstituted or substituted by methoxy, ethoxy, or 1 to 3 halogen atoms, PA0 R.sub.4 is hydrogen or methyl, PA0 R.sub.5 is hydrogen, C.sub.1 -C.sub.2 alkyl or methoxy, PA0 A is C.sub.1 -C.sub.4 alkylene or C.sub.2 -C.sub.4 alkenylene, each unsubstituted or substituted by C.sub.1 -C.sub.4 alkyl, PA0 m is 0 or 1, PA0 E is nitrogen or the methine group, PA0 X i…