The invention discloses novel herbicidally active and plant growth-regulating benzthiazolylurea derivatives of the formula ##STR1## wherein R.sub.1 is hydrogen, C.sub.1 -C.sub.6 alkyl, C.sub.3 -C.sub.6 alkenyl, C.sub.3 -C.sub.6 -alkylnyl or C.sub.3 -C.sub.6 cycloalkyl; R.sub.2 has the same meaning as R.sub.1 or is C.sub.1 -C.sub.6 alkoxy; R.sub.1 and R.sub.2, together with the nitrogen atom to which they are attached, also form a 5- to 6-membered heterocyclic ring which can be substituted by C.sub.1 -C.sub.3 alkyl; R.sub.3 is hydrogen, C.sub.1 -C.sub.6 alkyl, an alkali metal cation or an alkaline earth metal cation or a C.sub.1 -C.sub.4 alkylammonium radical, the alkyl moieties of which can be substituted by OH, NH.sub.2, CN or C.sub.1 -C.sub.4 alkoxy; R.sub.5 to R.sub.9 are preferably hydrogen or C.sub.1 -C.sub.4 alkyl, but can also have one of the other meanings defined more closely in the specification; X.sub.1 and X.sub.2, each independently of the other, is a C.sub.1 -C.sub.8 alkoxy or C.sub.1 -C.sub.8 alkylthio radical which can be substituted by halogen and/or interrupted by oxygen or sulfur, while X.sub.1 and X.sub.2 together can also be a double bonded oxygen atom or C.sub.2 -C.sub.3 alkylene-dioxide or -disulfide which can be substituted in the alkyl moiety by halogen, C.sub.1 -C.sub.6 alkyl or C.sub.1 -C.sub.6 alkoxy or C.sub.1 -C.sub.4 alkylthio; and Y is an oxygen or a sulfur atom.
本发明公开了一种新的具有除草活性和植物生长调节作用的
苯并噻唑基
脲衍
生物,其
化学式为##STR1##其中R.sub.1为氢、C.sub.1-C.sub.6烷基、C.sub.3-C.sub.6烯基、C.sub.3-C.sub.6烷基或C.sub.3-C.sub.6环烷基;R.sub.2具有与R.sub.1相同的含义,或为C.sub.1-C.sub.6烷氧基;R.sub.1和R.sub.2与它们所连接的氮原子一起也可以形成一个5-至6-成员的杂环环,其可以被C.sub.1-C.sub.3烷基取代;R.sub.3为氢、C.sub.1-C.sub.6烷基、碱
金属阳离子或碱土
金属阳离子或C.sub.1-C.sub.4烷基
铵基,其烷基部分可以被OH、NH.sub.2、CN或C.sub.1-C.sub.4烷氧基取代;R.sub.5到R.sub.9优选为氢或C.sub.1-C.sub.4烷基,但也可以具有规范中更详细定义的其他含义;X.sub.1和X.sub.2,每个独立地,是可以被卤素取代和/或被氧或
硫中断的C.sub.1-C.sub.8烷氧基或C.sub.1-C.sub.8烷
硫基基,而X.sub.1和X.sub.2也可以是双键氧原子或C.sub.2-C.sub.3烷基-二氧化物或-二
硫化物,其可以在烷基部分被卤素、C.sub.1-C.sub.6烷基或C.sub.1-C.sub.6烷氧基或C.sub.1-C.sub.4烷
硫基取代;Y是氧或
硫原子。