| 摘要 |
<p>Pesticidal compounds of formula I, the preparation of such compounds, intermediates for use in their preparation compositions containing such compounds and the use of such compounds and compositions to prevent or control pest infestation. Compounds of I have the following formula: I RACOCHDRB in which formula: RA represents a group ArCR1R2- in which Ar represents a phenyl or naphthyl group optionally substituted by one or more halogen, haloalkoxy, methylenedioxy or C1-C6 alkyl groups; R1 representing methyl, ethyl, isopropyl or cycloalkyl; R2 representing hydrogenn or methyl; or R1 and R2 together with the carbon to which they are attached representing join@@y a cycloalkyl group optionally carrying one or more halogen substituents; or RA represents the residue of a pyrethroidal acid RACO2H the 5-benzyl-3-furylmethyl ester of which is significantly insecticidal; RB represents the residue of an alcohol RBCHDOH in which D is hydrogen or cyano and of which the [IR, cis] 2,2-dimethyl-3-(2,2-dibromovinyl)cyclopropane carboxylic ester is significantly insecticidal, provided that then the alcohol is of formula II: <CHEM> RA is other than the residue of chrysanthemic acid.</p> |
