申请人:Nihon Bayer Agrochem K.K.
公开号:US05605920A1
公开(公告)日:1997-02-25
Disclosed are herbicidal tetrazolinone derivatives, selective in paddy fields of the formula ##STR1## wherein X represents C.sub.1-4 alkyl, n represents 1, 2, 3 or 4, R.sup.1 and R.sup.2 each independently represents C.sub.1-6 alkyl, C.sub.2-4 alkenyl, C.sub.2-6 alkynyl, C.sub.3-8 cycloalkyl, aryl which may optionally be substituted (wherein the substituent is at least one radical selected from the group consisting of halogen, C.sub.1-4 alkyl, C.sub.1-2 haloalkyl, C.sub.1-2 haloalkoxy, C.sub.1-2 haloalkylthio, acyl, nitro and cyano) or aralkyl optionally substituted by halogen or R.sup.1 and R.sup.2 form, together with the N-atom to which they are bonded, a cyclic ring which may be substituted. Also, disclosed are novel intermediates useful in the preparation of the compounds of formula (I).
本发明揭示了一种杀草的四唑酮衍生物,其在稻田中选择性作用,其化学式为##STR1## 其中X代表C.sub.1-4烷基,n代表1、2、3或4,R.sup.1和R.sup.2各自独立地代表C.sub.1-6烷基,C.sub.2-4烯基,C.sub.2-6炔基,C.sub.3-8环烷基,芳基(可以选择性地被取代,其中取代基是从卤素,C.sub.1-4烷基,C.sub.1-2卤代烷基,C.sub.1-2卤代氧基烷基,C.sub.1-2卤代硫基烷基,酰基,硝基和氰基中选择的至少一个基团),或可以选择性地被卤素或R.sup.1和R.sup.2取代的芳基烷基,或R.sup.1和R.sup.2与它们所连接的N原子一起形成一个可以被取代的环状环。此外,本发明还揭示了制备式(I)化合物的有用中间体。