| 摘要 |
PESTICIDAL TETRA2INE DERIUATIVES The invention provides 3,6-disubstituted-1,2,4,5-tetrazine compounds of formula (I) wherein A is a 1,2,4,5-tetrazinylene group or is a 1,4-dihydro-1,2,4,5-tetrazinylene group of formula (II) wherein R represents a hydrogen atom, a C1-4 alkyl group, a (C1-6 alkoxy)methyl group, a (C2-6 alkoxyalkoxy)methyl group, a phenyl C1-4 alkyl group or a halophenyl C1- alkyl group; their preparation; and their use as pesticides, particularly as mite ovicides. |
