The present invention provides compounds of formula I wherein R1, R2, R3, R4, G1, n, A1, A2, A3, A4, Y1, Y2, and Y3 are as defined in the claims. The invention also relates to processes and intermediates for preparing these compounds, to insecticidal, acaricidal, nematicidal and molluscicidal compositions comprising these compounds and to methods of using these compounds to control insect, acarine, nematode and mollusc pests.本發明提供了式I的化合物其中R1、R2、R3、R4、G1、n、A1、A2、A3、A4、Y1、Y2、和Y3係如在申請專利範圍中所定義的。本發明還涉及用於製備該等化合物的方法以及中間體,涉及包含該等化合物的殺昆蟲、殺蟎、殺線蟲以及殺軟體動物的組合物並且涉及使用該等化合物控制昆蟲、蟎蟲、線蟲以及軟體動物有害生物的方法。
