Synthesis and structural characterization of several tris(2-methyl-2-phenylpropyl)tin carboxylates containing germanium

Thirteen tris(2-methyl-2-phenylpropyl)tin germylpropionates have been synthesized and their structures characterized by elemental analysis, IR, multinuclear NMR (H-1, C-13, Sn-119) and MS spectroscopies. The structure of (PhC(CH3)(2)CH2)(3)SnO2CCH2CH(o-C6H4Cl)GePh3 has been determined by X-ray diffraction study, which indicated that the tin in the compound possess a tetrahedral geometry. Bioassay results have shown that some of the compounds have good acaricidal activity. (C) 2001 Elsevier Science B.V. All rights reserved.