Herbicidal benzoxazinones

摘要

The present invention relates to benzoxazinones of the general formula (I);
wherein the variables are defined according to the description, processes and intermediates for preparing the benzoxazinones of the formula (I), compositions comprising them and their use as herbicides, i.e. for controlling harmful plants, and also a method for controlling unwanted vegetation which comprises allowing a herbicidal effective amount of at least one benzoxazinones of the formula (I) to act on plants, their seed and/or their habitat.

主权项

1. A method for controlling weeds in a crop area, comprising
(a) applying to herbicide-tolerant crop plants and to weeds in said area an herbicidal composition comprising an herbicidal benzoxazinone of formula (I) whereinR1 is hydrogen or halogen;R2 is halogen;R3 is hydrogen or halogen;R4 is hydrogen, C1-C6-alkyl, C1-C6-haloalkyl, C3-C6-cycloalkyl, C3-C6-alkenyl, C3-C6-haloalkenyl, C3-C6-alkynyl, C3-C6-haloalkynyl, C1-C6-alkoxy or C3-C6-cycloalkyl-C1-C6-alkyl;R5 is hydrogen, NH2, C1-C6-alkyl or C3-C6-alkynyl;R6 is hydrogen or C1-C6-alkyl;W is O or S; andZ is O or S; or (b) applying to said area an herbicide-tolerant crop seed that has been treated with an herbicidal composition comprising said herbicidal benzoxazinone of formula (I); the composition of (a) or (b) comprising an herbicidally effective amount of said benzoxazinone of formula (I).