Darstellung und eigenschaften von triorganogermanium-, silicium- und -kohlenstoffsulfinsäurederivaten

A number of hitherto unknown sulfinic acid derivatives of germanium, silicon and carbon, R₃MO₂SR, were prepared by reaction of anhydrous aliphatic aromatic silver sulfinates, RSO₂Ag, with triorgano IVa element halides of the type R₃MX (R  aliphatic or aromatic group; M  Ge, Si, ;; X  Cl, Br). Their ester-like structure and the trigonal pyramidal configuration of the R₃M group result unequivocally from ¹H NMR, mass, IR and Raman spectroscopic investigations. The methyl esters (CH₃)₃MO₂SCH₃ (M  Ge, Si, C) are compared with the already known sulfinato complexes of tin and lead, (CH₃)₃SnO₂SCH₃ and (CH₃)₃PbO₂SCH₃.