Sulfonylmethylamino-substituted benzoic acids and herbicidal method therewith

US4057418A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Wolfgang Hofer
• Fritz Maurer · Wuppertal, DE
• Hans-Jochem Riebel · Bad Camberg, DE
• Rolf Schroder · Wuppertal, DE
• Ludwig Eue

Key dates

• Filing date: Jan 19, 1976
• Grant date: Nov 8, 1977
• Expiry date: Jan 19, 1996

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C205/58
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Novel benzoic acid compounds of the formula ##STR1## in which R is alkyl or substituted alkyl of up to 6 carbon atoms, where the substituents are selected from halogen, or PA1 R is aryl which is optionally substituted by halogen and/or by alkyl of up to 4 carbon atoms, PA1 R.sup.1 is alkyl, alkoxy or alkylmercapto, of in each case up to 4 carbon atoms, or halogen, PA1 R.sup.2 is hydrogen, PA1 R.sup.3 is hydrogen or halogen, PA1 R.sup.4 is hydroxyl, alkoxy of 1 to 6 carbon atoms or an amino group which is optionally substituted by one or two alkyl radicals each of up to 6 carbon atoms, and PA1 R.sup.5 is halogen or alkyl of up to 4 carbon atoms; are outstandingly effective and selective as herbicides.