Sulfonylureas with heterocyclic substituents, a process for the preparation thereof, and the use thereof as herbicides or plant-growth regulators

Abstract From the Canadian patent

Sulfonylureas with heterocyclic substituents a process, for the preparation thereof and the use thereof as, herbicides or plant-growth regulators Sulfonylureas with heterocyclic substituents of the, formula, (see fig. I), in which A denotes a C1-C10-hydrocarbon radical R1 denotes saturated or unsaturated alkyl or cycloalkyl, each of which can be substituted by halogen or radicals from the group comprising saturated or unsaturated alkoxy or alkylthio, alkylsulfinyl alkylsulfonyl, cycloalkyl, a radical of a three- to six-membered saturated heterocycle having an oxygen atom in the ring, furyl, phenyl, optionally substituted by halogen, alkyl, alkoxy, CF3 alkoxy-carbonyl and/or nitro, or, R1 …