Novel isomers and mixtures thereof of cyclopropane carboxylic acid derivatives with a 3-unsaturated side chain of Z geometry of the formula ##STR1## wherein A' is ##STR2## wherein R.sub.13 is selected from the group consisting of hydrogen and CN and R is an optionally unsaturated alkyl of 1 to 18 carbon atoms having insecticidal and nematocidal activity as well as plant and animal acaricidal activity and their preparation.
环丙烷羧酸衍
生物的新异构体和混合物,其具有式子##STR1##中的Z几何的3-不饱和侧链,其中A'是##STR2##其中R.sub.13从氢和CN组成的群中选择,R是具有杀虫和杀线虫活性以及植物和动物螨虫活性的1至18个碳原子的可选不饱和烷基,以及它们的制备。