Shen De-long
2006
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Journal
Chinese Journal of Pesticide Science
Abstract
Eight novel 1,2,4-triazolo[1,5-a] pyrimidine derivatives were synthesized from aromatic amines or hetercyclic amines,chloroacetyl chloride and 2-mercapto-5,7-dimethyl-1,2,4-triazolo[1,5-a] pyrimidine.The structures of all new compounds were confirmed by()~1H NMR,IR and MS spectra.Preliminary bioassays indicated that 6 compounds showed excellent herbicidal activities,the inhibition rate was above 80% at 75 g a.i./hm~2 against pre-or post-emergence of Echinochloa crusgalli,Amaranthus retroflexus,etc.