Organotin(IV) derivatives of <em>o</em>-hydroxyacetophenone glycine

Abstract

A few di-and triorganotin(IV) derivatives of <em>o</em>-hydroxyacetophenone glycine, of the type [HOC₆-H₄C( Me) = NCH₂COO]₂SnR₂ and [HOC₆H₄C(Me) = NCH₂COO]SnR₃ (where R = Me, Bu and Ph) have been synthesized by the reactions of the corresponding di- and triorganotin(IV) chlorides with potassium salt of <em>o</em>-hydroxyacetophenone glycine in 1:2 and 1:1 molar ratios respectively in refluxing benzene. However, diorganotin(IV) dichlorides and potassium salt of the ligand on refluxing in 1:1 molar ratio in benzene in the presence of triethylamine yielded the corresponding five coordinate diorganotin(IV) derivatives of the formulae [OC₆H₄C(Me) = NCH₂COO]SnR₂ (where R = Me and Bu). These derivatives have been characterized by elemental analyses, m. pt. determinations and IR and NMR spectral studies.