Abstract
AbstractReactivity of [{2,6‐(Me2NCH2)2C6H3}Sn]2 (1) towards functionalized diorganodisulfides R2S2 as oxidizing agents was studied. The reactions provided organotin(II) thio derivatives {2,6‐(Me2NCH2)2C6H3}Sn(S2CNMe2) (2), {2,6‐(Me2NCH2)2C6H3}Sn (SC6H4‐2‐NH2) (3) and {2,6‐(Me2NCH2)2C6H3}Sn(SC5H4N) (4). The 119Sn NMR spectroscopic data of 2–4 suggest different electronic saturation of the tin(II) atoms in 2–4, which caused redox stability of 2 and easy oxidation of 3 and 4. The treatment of the latter compounds with diorgano disulfides R2S2 yielded organotin(IV) thio derivatives {2,6‐(Me2NCH2)2C6H3}Sn(SC6H4‐2‐NH2)3 (5) and {2,6‐(Me2NCH2)2C6H3}Sn(SC5H4N)3 (6). In addition, oxidation of 3 and 4 with the radical TEMPO (2,2,6,6‐tetramethylpiperidin‐1‐oxyl) provided organotin(IV) hydroxide [{2,6‐(Me2NCH2)2C6H3}Sn(SC6H4‐2‐NH)(μ‐OH)]2 (7) and organotin(IV) oxide [{2,6‐(Me2NCH2)2C6H3}Sn(SC5H4N)(μ‐O)]3 (8). All prepared compounds 2–8 were characterized by using multinuclear NMR spectroscopy, and the molecular structures of 2, 4, 7 and 8 were determined by using X‐ray diffraction. Compounds 2–4 were also characterized by cyclic voltammetry.
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