Substituted phenyl (thiono)carbamates, herbicidal compositions containing the same as active ingredient and method of controlling weeds.

摘要

Substituted phenyl (thiono) carbamates capable of effectively controlling broad-leaved annual weeds and annual weeds belonging to the families Gramineae and Cyperaceae such as wild Echinochloa species, monochoria, toothcup and umbrella plant, herbicidal compositions containing these (thiono) carbamates as active ingredient and a method of controlling weeds using these (thiono) carbamates. The (thiono) carbamates are substantially non-phytotoxic to useful crop plants such as the paddy rice plant.
<??>These (thiono) carbamates have the general formula
<CHEM>
wherein X is an oxygen or sulfur atom or a vinylene group, 1 and m are each an integerof 1 to 4, n is an integer of 0 or 1, the heterocycle comprising the nitrogen atom, the two alkylene chains and x is 5- to 7-membered, the two alkylene chains may each be branched, Y is a halogen atom, p is an integer of 1 or 2, R<1> is a hydrogen atom or a lower alkyl group, R<2> and R<3> are the same or different and each is a hydrogen atom or a lower alkyl or phenyl group, R<4> and R<5> are the same or different and each is a halogen atom, and Z is an oxygen or sulfur atom.