| 摘要 |
COMPOUNDS OF THE FORMULA (FORMULA 1) WHEREIN X1, X2 AND X3 EACH INDEPENDENTLY REPRESENTS HYDROGEN, HALOGEN OR ALKYL; N IS 0 OR 1; Z REPRESENTS HYDROGEN OR HALOGEN OR AN AMINO, ALKYL, HALOALKYL, ALKYLTHIO OR ALKOXY GROUP OR A PHENOXY GROUP OPTIONALLY SUBSTITUTED BY HALOALKYL; A REPRESENTS CH OR N; Y1 AND Y2 EACH INDEPENDENTLY REPRESENTS HYDROGEN, HALOGEN, ALKYL, HALOALKYL, ALKOXY OR HALOALKOXY; AND W REPRESENTS HYDROGEN OR, OR WHEN A IS CH AND AT LEAST ONE OF Y1 AND Y2 IS NOT HYDROGEN OR WHEN A IS N, HYDROGEN OR HALOGEN; WITH THE PROVISO THAT WHEN A REPRESENTS N, THEN EACH OF Y1 AND Y2 REPRESENTS HYDROGEN, HAVE HERBICIDAL PROPERTIES. THE INVENTION ALSO PROVIDES A PROCESS FOR THEIR PREPARATION AND THEIR USE AS HERBICIDES.
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