| 摘要 |
<p>The invention relates to tetrahydro-1,3-oxazines of the formula (II) where R denotes linear or branched haloalkyl of up to 3 carbon atoms, R1, R2, R3, R4 and R5 are identical or different and each denotes hydrogen or linear or branched alkyl of up to 3 carbon atoms, R6 denotes hydrogen or linear or branched alkyl of up to 8 carbon atoms, R7 denotes hydrogen, linear or branched alkyl of up to 8 carbon atoms, alkoxyalkyl of up to 6 carbon atoms or dialkoxyalkyl of up to 8 carbon atoms, and R6 and R7 may together form a methylene chain of 4 to 5 carbon atoms. The invention also relates to a process for combatting unwanted plant growth in Indian corn and cereal crops, in which these compounds of formula (II) are used as antagonistic agent to increase the tolerance of crop plants to herbicidal acetanilides.</p> |
