Syntheses and Characterization of Polyfunctional Organotin Chlorides

We report the syntheses and crystal structures of novel organotin chloride complexes with functional organic substituents from HSnCl₃ · 2Et₂O ( 1 – 3 ). Whereas Cl₃SnCHPhCH₂C(O)(CH)₂Ph ( 1 ) was synthesized in a traditional route from HSnCl₃ · 2Et₂O and dibenzylideneacetone, C₆H₅Cl₅O₄Sn₂ ( 2 ) and C₈H₉Cl₅O₄Sn₂ ( 3 ) represent products of a condensation reaction of mononuclear organotintrichlorides that comprise both C=C and C=O functional groups and additionally exhibit characteristic intramolecular donor‐acceptor interactions. Due to the condensation, compounds 2 and 3 combine SnCl₂ with SnCl₃ groups within one molecule.