Tetrahydro-1,3-oxazines
    124.
    发明授权
    Tetrahydro-1,3-oxazines 失效
    四氢-1,3-恶嗪

    公开(公告)号:US4295875A

    公开(公告)日:1981-10-20

    申请号:US132986

    申请日:1980-03-24

    Abstract: New tetrahydro-1,3-oxazines of the formula ##STR1## where R denotes linear or branched haloalkyl of up to 3 carbon atoms, R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are identical or different and each denotes hydrogen or linear or branched alkyl of up to 3 carbon atoms, R.sup.6 denotes hydrogen or linear or branched alkyl of up to 8 carbon atoms, R.sup.7 denotes hyrogen, 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 R.sup.6 and R.sup.7 may together form a methylene chain of 4 or 5 carbon atoms.The compounds are antagonistic agents and, as such, increase the tolerance of herbicidal acetanilides by crop plants. Herbicidal agents containing the tetrahydro-1,3-oxazines in combination with haloacetanilides are suitable for combating unwanted plant growth in Indian corn and cereal crops.

    Abstract translation: 其中R表示多至3个碳原子的直链或支链卤代烷基,R1,R2,R3,R4和R5的新的四氢-1,3-恶嗪是相同或不同的,各自表示氢或直链或支链烷基 至多3个碳原子,R6表示氢或至多8个碳原子的直链或支链烷基,R7表示氢,最多8个碳原子的直链或支链烷基,最多6个碳原子的烷氧基烷基或多至8个碳原子的二烷氧基烷基 碳原子,R 6和R 7可以一起形成4或5个碳原子的亚甲基链。 这些化合物是拮抗剂,因此增加作物植物除草乙酰苯胺的耐受性。 含有四氢-1,3-恶嗪与卤代乙酰苯胺组合的除草剂适用于抵抗印度玉米和谷类作物中不想要的植物生长。

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