| 摘要 |
NEW MATERIAL:A 1,2,4-thidiazolin-3-one derivative expressed by formula I (X is halogen; Y is H or halogen; R1 is H, halogen or haloalkyl; R2 is halogen or haloalkoxyl). EXAMPLE:2-(4-Chlorophenyl)-5-(2,6-difluorophenyl)-DELTA<4>-1,2,4-thiad iazolin-3-one. USE:A safely usable agricultural and horticultural germicide. PREPARATION:A compound expressed by formula II is cyclized in an organic solvent in the presence of an acid binder to afford the aimed compound expressed by formula I.
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