申请人:Schering Aktiengesellschaft
公开号:US04155915A1
公开(公告)日:1979-05-22
Benzodioxolan derivatives of the formula ##STR1## wherein R.sub.1 and R.sub.2 are the same or different and are hydrogen, an aliphatic hydrocarbon residue, a halogenated aliphatic hydrocarbon residue, an aromatic hydrocarbon residue, a substituted aromatic hydrocarbon residue, A heterocyclic residue or a substituted heterocyclic residue, Or wherein R.sub.1 and R.sub.2 together with the adjoining carbon atom are a cycloaliphatic hydrocarbon residue which may additionally be substituted by nitrogen or oxygen or both, and wherein R.sub.3 is hydrogen or an aliphatic hydrocarbon residue, And wherein R.sub.4 is a saturated or unsaturated aliphatic hydrocarbon residue or is alkoxy and wherein R.sub.5 is hydrogen or is a saturated or unsaturated aliphatic hydrocarbon residue. The compounds have a high herbicidal activity against weeds and superior selective herbicidal properties for agricultural and horticultural plantations. The invention also embraces processes for making the compounds and compositions containing the same.
公式为##STR1##的苯并二氧兰衍生物,其中R.sub.1和R.sub.2相同或不同,可以是氢、脂肪烃基、卤代脂肪烃基、芳香烃基、取代芳香烃基、杂环残基或取代杂环残基,或者R.sub.1和R.sub.2与相邻碳原子一起形成一个环状脂环烃残基,该残基可能被氮或氧或两者都取代,R.sub.3为氢或脂肪烃基,R.sub.4为饱和或不饱和脂肪烃基或烷氧基,R.sub.5为氢或饱和或不饱和脂肪烃基。这些化合物对杂草具有高度除草活性,并具有卓越的农业和园艺植物选择性除草性能。该发明还包括制备这些化合物的方法和含有这些化合物的组合物。