Substituted thiadiazolyloxy acetamides having herbicidal properties.

摘要

Herbicidal thiadiazolyloxyacetamides of the formula :
<Chemistry id="chema01" num="0001"><Image id="ia01" he="22" wi="85" file="IMGA0001.TIF" imgContent="chem" imgFormat="TIFF" inline="no" /></Chemistry>wherein:
<UnorderedLists id="ula01" listStyle="none"><ListItem>R is an optionally-substituted alkyl, cycloalkyl or aryl group; R<Sup>1</Sup> and R<Sup>2</Sup>, 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 R' and R<Sup>2</Sup>, together with the nitrogen atom to which they are attached, represent a heterocyclic or benzheterocyclic group, the heterocyclic 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)<Sub>n</Sub> where n is 1 or 2,</ListItem></UnorderedLists>processes for their preparation, and compositions containing them.