| 摘要 |
The instant invention relates to novel tetrazole derivatives of the formula (I) wherein R1 represents halogen, methyl, ethyl, halomethyl, methoxy, ethoxy, Ñ1-2 haloalkoxy, methylthio, ethylthio, Ñ1-3 alkylsulfonyl, methylsulfonyloxy, ethylsulfonyloxy, nitro or cyano, R2 represents C1-6 alkyl, Ñ3-6 cycloalkyl which may be optionally substituted with halogen or Ñ1-3 alkyl, C1-4 haloalkyl, C2-6 alkenyl, or phenyl which may be optionally substituted with halogen, Ñ1-3 alkyl, Ñ1-4 haloalkyl, Ñ2-6 alkenyl, or phenyl which may be optionally substituted with halogen, Ñ1-3 alkyl, Ñ1-2 haloalkyl or nitro, m represents 0, 1 or 2, two R1 may be identical or different, in case m represents 2, n represents 1 or 2, Q represents one the cyclic groups which are mentioned in the specification, to intermediates and several processes for their preparation, to their use as herbicides and to novel compositions containing them. (I)
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