| abstract |
"HETAROILA DERIVATIVE, PROCESSES TO PREPARE THE SAME AND TO CONTROL GROWTH OF UNDESIRABLE PLANTS AND HERBICIDE COMPOSITION". Hetaroyl derivatives of formula I wherein the substituents have the following meanings are described: L and M hydrogen, C 1-6 alkyl, C 2-6 alkenyl, C 2-6 alkynyl C6-6, C1-4 alkoxy, being possible for these groups to be unsubstituted or substituted by one to five halogen or C1-4 alkoxy atoms; halogen, cyano, nitro; X oxygen or sulfur, which may be substituted by one or two oxygen; n is zero, one, two; Q, R ^ 1 ^, R ^ 2 ^, R ^ 3 ^ and R ^ 4 ^ have the meanings given in claim 1, processes for preparing hetaroyl derivatives, compositions containing them and use of these derivatives or compositions containing them. to control weeds. |