BASE-INDUCED SYNTHESIS OF A TETRASTANNATRIAZABICYCLO[3.1.1]HEPTANE FROM TRIS(DIMETHYLCHLOROSTANNYL)AMINE

Tris(dimethylchlorostannyl)amine (2a) reacts with pyridine in a 3:4 mo lar ratio to produce the tin-nitrogen containing bicyclo[3.1.1]heptane (3) with elimination of the adduct Me2SnCl2 . 2 py. Treatment of the distannylamine 2,6-iPr(2)C(6)H(3)N(SnMe2Cl)(2) (4) with pyridine, howe ver, leads to the formation of the 1:1 pyridine adduct 5 and this can be regarded as a model to explain the route to 3. The molecular struct ures of 3 and 5 were determined by multinuclear magnetic resonance spe ctroscopy in solution, as well as by X-ray structure analysis of their crystals. Typical structural features for both compounds are intramol ecular Sn-X-Sn bridges. Support for the structures comes from MS fragm entation patterns, IR spectra, and the Mossbauer spectra.