| 摘要 |
<p>Pesticides contain as active component a cpd. of formula (I) (where X and Y are O, S; R1 is H, opt halo-subst. alkyl, alkenyl, alkynyl, or alkoxy, or opt halo-, CF3, or CH3-subst. phenyl; R2 is lower alkyl; or NR1R2 is a heterocyclic ring; and R4 is lower alkyl, lower alkyl the chain of which is interrupted by O or S; or phenyl trisubstd. by 1-4C alkyl, mercapto, CN and/or CF3). (I) are esp useful as selective herbicides, although they are also ative against e.g. microbes, insects, acarina, nematodes and molluscs.</p> |
