Syntheses and bioactivities of mixed butyl/cyclohexyl tin carboxylates

Eight novel compounds have been synthesized and they are two series of mixed tri(butyl/cyclohexyl) tin carboxylates: Bu n Cy 3‐ n SnO 2 CR ( n = 1, 2; R = n ‐C 3 H 7 , C 6 H 5 , 4‐ClC 6 H 4 , 4‐NO 2 C 4 H 4 ). In addition to the studies of their structures with IR, 119 Sn and 13 C NMR, we tested their fungicidal, insecticidal and acaricidal activities. The percentage of inhibition to the aforementioned phytopathogen is about 80—100% at 50 ppm in glasshouse and 100% for T. Uriticae at 500 ppm. Those findings indicate that this kind of compounds have both fungicidal and acaricidal activities and may have a good prospect for applications.