| 摘要 |
PCT No. PCT/EP94/00778 Sec. 371 Date Nov. 21, 1994 Sec. 102(e) Date Nov. 21, 1994 PCT Filed Mar. 14, 1994 PCT Pub. No. WO94/21640 PCT Pub. Date Sep. 29, 1994.Triazolo pyrimidines of the formula <IMAGE> wherein R1 is hydrogen, C1-C4alkyl or C1-C4haloalkyl; and R2 is C1-C4alkyl, C1-C4haloalkyl, C1-C4alkoxy, C1-C4haloalkoxy, C1-C4alkylthio, C1-C4haloalkylthio, C1-C4alkoxy-C1-C4alkyl, C1-C4-alkoxy-C1-C4alkoxy, C1-C4alkoxy-C1-C4alkylthio, halogen, amino, C1-C4alkylamino or C1-C4dialkylamino, have pre- and postemergence herbicidal properties. Their preparation use thereof as herbicides are described.
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