The invention embraces compounds of formula
and salts thereof, wherein :
X and Y are independently selected from various optionally substituted alkoxy, alkenyloxy, alkynyoxy and phenoxy groups ;
W is oxygen or sulfur;
R1 is hydrogen or alkyl ;
E is CH or N;
R2 and R3 are independently selected from various halo, alkyl, alkoxy and amino substituents.
The compounds of the invention show herbicidal properties particularly for the control of broad leaf plants in grass crops such as wheat. In further embodiments the invention provides processes for the preparation of compounds I, intermediates useful in the preparation of compounds of formula I, compositions containing as active ingredient a compound of formula I and herbicidal and plant growth regulating processes utilizing compounds of formula I.
该发明涵盖了以下化合物及其盐,其中:X和Y分别选自各种可选择取代的烷氧基、烯氧基、炔氧基和苯氧基团;W为氧或
硫;R1为氢或烷基;E为CH或N;R2和R3分别选自各种卤素、烷基、烷氧基和
氨基取代基。该发明的化合物显示出除草特性,特别用于控制小麦等禾本科作物中的阔叶植物。在进一步的实施方式中,该发明提供了用于制备化合物I的过程,用于制备化合物I的中间体,含有化合物I作为活性成分的组合物,以及利用化合物I的除草和植物生长调节过程。