| abstract |
New benzoxazines of the formula (I) are disclosed in the X is hydrogen or halogen, R¹ is hydrogen or C₁-C₂ alkyl, R² is cyano, trimethylsilyl, trimethylsilyl methoxycarbonyl, C₁-C₄-alkylthio or cyclopropyl and Q is one of the following groups the use of the new compounds as herbicides and intermediates for the preparation of the new benzoxazines of the formula (I). |