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US5500407A Triazolopyrimidine herbicides 失效
三唑并嘧啶除草剂

Triazolopyrimidine herbicides
摘要:
Triazolo pyrimidines of the formula ##STR1## wherein R.sub.1 is hydrogen, C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 haloalkyl; and R.sub.2 is C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 haloalkyl, C.sub.1 -C.sub.4 alkoxy, C.sub.1 -C.sub.4 haloalkoxy, C.sub.1 -C.sub.4 alkylthio, C.sub.1 -C.sub.4 haloalkylthio, C.sub.1 -C.sub.4 alkoxy-C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 -alkoxy-C.sub.1 -C.sub.4 alkoxy, C.sub.1 -C.sub.4 alkoxy-C.sub.1 -C.sub.4 alkylthio, halogen, amino, C.sub.1 -C.sub.4 alkylamino or C.sub.1 -C.sub.4 dialkylamino, have pre- and postemergence herbicidal properties. Their preparation use thereof as herbicides are described.
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