| 摘要 |
3-phenyl-2,4-dioxo-spiro-heterocyclic compounds (I) are new. 3-phenyl-2,4-dioxo-spiro-heterocyclic compounds of formula (I) are new. [Image] W' : cyano, halo, (halo)alkyl, (halo)alkoxy, alkenyl or alkynyl; X', Y' and Z' : H, halo, (halo)alkyl, (halo)alkoxy or cyano; -A'-B'- : -CH 2CH(OR 1)-, -O-CH 2- or -CHR 2-O-; G : halo or nitro; R 11-6C alkyl; R 2, R 3H or 1-4C alkyl; and Q : NH, O or S. Provided that where -A'-B'- is -CHR 2-O- : at least one of X, Y and Z is other than H, and W, X and Y are not all Me if Z = H. An independent claim is also included for two methods for preparing (I). ACTIVITY : Insecticide; Acaricide; Nematocide; Fungicide; Herbicide; Antibacterial; Antifouling; Plant Growth Regulant. The compound 3-chloro-3-(2-chloro-5-methylphenyl)-5-(spiro-4-methoxycyclohexane)-2,4-dioxo- pyrrolidine was tested as a 500 ppm spray against larvae of Phaedon cochleriae, and gave 100% kill after 7 days. MECHANISM OF ACTION : None given. |
