2,5-substituted diethianes having pesticidal activity

Abstract From the Canadian patent

Compounds of the formula (I) (I), which contain between 10 and 27 carbon atoms and wherein m and n are, independently selected from 0 1 and 2; R2a is hydrogen, methyl, or ethyl; R2b is acetylene or contains between 3 and 18 carbon atoms and is a group R7, wherein R7 is a C1-13 non-aromatic hydrocarbyl group optionally, substituted by a cyano or C1-4 carbalkoxy group and/or by one or two hydroxy groups and/or by one to five halo atoms which are the same or different and/or by one to three groups R8 which are the same or different and each contain one to four hetero atoms which are the same or different, and are chosen from oxygen sulphur, nitrogen and silicon, 1 to 10 carbon atoms and …