| 摘要 |
Herbicidal thiadiazolyloxyacetamides of the formula: <IMAGE> (I) wherein: R is an optionally-substituted alkyl, cycloalkyl or aryl group; R1 and R2, which may be the same or different, each represent hydrogen, alkyl, cycloalkyl, alkoxy, alkenyl, aryl, aralkyl or aryloxy, any alkyl or aryl moiety thereof being optionally substituted; or R1 and R2, together with the nitrogen atom to which they are attached, represent a heterocyclic or benzheterocyclic group, the hetrocyclic ring of which is 5- or 6-membered, and which may be substituted by one or more alkyl groups; and X is oxygen, sulphur or -S(O)n-where n is 1 or 2, process for their preparation, and compositions containing them. |
