The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 07, 1992
Filed:
May. 15, 1989
Heinz Kehne, Hofheim am Taunus, DE;
Lothar Willms, Hillscheid, DE;
Klaus Bauer, Hanauein/Taunus, DE;
Hermann Bieringer, Eppstein/Taunus, DE;
Helmut Burstell, Frankfurt am Main, DE;
Hoechst Aktiengesellschaft, Frankfurt, DE;
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 (C.sub.1 -C.sub.8)alkyl,