TY - JOUR A1 - Veith, M. A1 - Elsässer, R. A1 - Krüger, Ralph-Peter T1 - Synthesis of Dendrimers with a N-Si-C Framework JF - Organometallics N2 - A novel family of air-stable dendrimers with a N-Si-C framework has been prepared up to the fourth generation. The divergent synthesis starts with the hydrosilylation of the trisilazane N(SiMe2vinyl)3 [0-G(vinyl)] by HSiMe2Cl, which gives the three-directional core molecule N(SiMe2CH2CH2SiMe2Cl)3 [0-G(Cl)]. A 1-to-2 branching achieved by reacting the core molecule [0-G(Cl)] with 3 equiv of KN(SiMe2vinyl)2 affords the first generation dendrimer [1-G(vinyl)]. By repeating the above two steps, the second [2-G(vinyl)], third [3-G(vinyl)], and fourth generation [4-G(vinyl)] can be obtained. The compounds have been characterized by 1H, 13C, and 29Si NMR spectroscopy, by elemental analysis, and up to the third generation by MALDI-TOF mass spectrometry. Gel permeation chromatography was used to prove the fourth generation [4-G(vinyl)]. PY - 1999 DO - https://doi.org/10.1021/om9807708 SN - 0276-7333 SN - 1520-6041 VL - 18 IS - 4 SP - 656 EP - 661 PB - American Chemical Society CY - Washington, DC AN - OPUS4-2162 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -