Eight disubstituted benzyltin complexes, i.e., {[R(O)C=N-N=C (Me)COO]R'2Sn(CH3OH)}n (1a and 2b), {[R(O)C=N-N=C (Me)COO]R'2Sn(CH3OH)}2 (1b and 1d) and {[R(O)C=N-N=C (Me)COO]R'2Sn}n (1c, 2a, 2c, and 2d) (R=C4H3O-, C4H3S-, p–t-Bu-C6H4- or p-MeO-C6H4-; R'=o-Cl-C6H4CH2- or o-Me-C6H4CH2-), were prepared from the reaction of arylformylhydrazine, pyruvic acid and disubstituted benzyltin dichloride with microwave irradiation. All complexes were characterized by FT-IR spectroscopy, 1H, 13C and 119Sn NMR spectroscopy, HRMS, elemental analysis, X-ray sing...