| 摘要 |
<p>Compounds of the formula <CHEM> wherein A is H or C1-C4 alkyl; E is H, Cl, Br, F, CF3, CH3 or OCH3; G is H or Cl; D is H, CH3 or CO2R8; L is H, CH3 or C2H5; Q is -CH=CH- or -CH2CH2-; n is 0 or 1; W is CN or C(O)R or <CHEM> R is Cl, XR1, NR2R3, OH or OM; M is an agriculturally suitable salt; X is O or S; R1 is selected from various organic groups; R2 is H or various organic groups; R3 is H or alkyl; m is 0, 1, 2 or 3; Y and Z are independently N or N->O; exhibit herbicidal activity. They may be used as total herbicides or, in some cases, for selectively controlling grass weeds in broad-leaf crops. The compounds may be formulated for use in conventional manner. They may be made by a variety of methods, for example by reacting an alkali metal salt of a compound of the formula <CHEM> with a 2-haloquinoxaline of the formula <CHEM> t</p> |
