Heterocyclically substituted phenoxysulfonylureas, and the use thereof as herbicides or plant growth regulators

US5102443A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Heinz Kehne · Hofheim, DE
• Lothar Willms · Hillscheid, DE
• Klaus Bauer · Rodgau, DE
• Hermann Bieringer · Eppstein, DE
• Helmut Burstell · Frankfurt am Main, DE

Key dates

• Filing date: May 15, 1989
• Grant date: Apr 7, 1992
• Expiry date: May 15, 2009

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A01N47/36
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Heterocyclically substituted phenoxysulfonylureas, processes for the preparation thereof, and the use thereof as herbicides or plant growth regulators. Compounds of the formula I or the salts thereof ##STR1## where R.sup.1 is (C.sub.1 -C.sub.8)alkyl, (C.sub.2 -C.sub.8)alkenyl or (C.sub.2 -C.sub.8)alkynyl, these radicals being substituted by halogen, saturated or unsaturated (C.sub.1 -C.sub.6)alkoxy, (C.sub.1 -C.sub.6)alkylthio, -sulfinyl or -sulfonyl, (C.sub.1 -C.sub.6)alkoxycarbonyl, NO.sub.2, CN or phenyl; furthermore is (C.sub.2 -C.sub.8)alkenyl, (C.sub.2 -C.sub.8)alkynyl or (C.sub.3 -C.sub.8)cycloalkyl, which can be substituted by halogen or by alkoxy or alkylthio; (C.sub.5 -C.sub.8)cycloalkenyl, cyclopropylmethyl, epoxypropyl; furfuryl, tetrahydrofurfuryl or phenoxy (C.sub.1 -C.sub.4)alkyl, it being possible for the last three substituents mentioned to be substituted by halogen, alkyl or alkoxy; or phenyl which can be substituted by halogen, alkyl, alkoxy, NO.sub.2, CF.sub.3, CN or OCHF.sub.2 ; or, in the event that R.sup.2 is alkenyl, alkynyl, phenyl or phenoxy, each of which can be substituted as indicated below, alkylsulfonyl or alkylsulfinyl and n.noteq., R.sup.1 is also (…