Substituted 3-trihalogenomethyl-1,2,4-thiadiazol-5- yl-oxyacetamides, a process for their preparation and their use as herbicides

Abstract From the Canadian patent

A substituted 3-trihalogenomethyl-1,2,4 thiadiazol-5-yl-oxyacet amide of the formula, in which, x represents -CFCl2 -CF2Cl or - CF3 and, R1 and R2 are identical or different and individually represent optionally substituted alkyl alkenyl, alkinyl, alkoxy, aralkyl, cycloalkyl cycloalkenyl, aryl or a, nitrogen-containing heterocyclic radical or, together, with the nitrogen atom to which they are bonded form, an optionally substituted, optionally partially unsaturated and optionally benzofused monocyclic or bicyclic structure which optionally contains further hetero atoms which, possesses herbicidal activity. Le A 21 611