Composés insecticides

摘要

Cette invention concerne des composés de formule (i), a1, a2, a3, a4, g, r1, r2, r3 and r4 are as defined in claim 1; or a salt or jv-oxide thereof. Furthermore, the present invention relates to processes and intermediates for preparing compounds of formula (i), to insecticidal, acaricidal, nematicidal and molluscicidal compositions comprising the compounds of formula (i) and to methods of using the compounds of formula (i) to control insect, acarine, nematode and mollusc pests.