abstract |
The invention relates to Formula I [Wherein R 1 is hydrogen or halogen; R 2 is hydrogen, C 1 -C 6 -alkyl, C 1 -C 6 -haloalkyl, C 3 -C 6 -cycloalkyl, C 3 -C 6 -alkenyl , C 3 -C 6 -haloalkenyl, C 3 -C 6 -alkynyl, C 3 -C 6 -haloalkynyl, C 1 -C 6 -alkoxy or C 3 -C 6 -cycloalkyl-C 1 -C 6- R 3 is halogen; R 4 is halogen; X is O or S; Y is a substituted or unsubstituted heterocyclic ring] To provide benzoxazinone. The benzoxazinones of formula I are useful as herbicides. 【Selection chart】 None |