Abstract
Reduction of 1,2-bis[(2,6-diisopropylphenyl)imino]acenaphthene (1, dpp-bian) in the presence of SiCl4 with two equivalents of potassium graphite (KC8) in tetrahydrofuran leads to the formation of compound (dpp-bian)SiCl2 (2), which was also synthesized by the exchange reaction of SiCl4 with the magnesium complex (dpp-bian)Mg(THF)3. An analog of compound 2, the bromo derivative (dpp-bian)SiBr2 (3), was obtained by the reaction of SiBr4 with one equivalent of Na2(dpp-bian) (in situ from Na and dpp-bian) in toluene. The silylene (dpp-bian)Si (4) was synthesized by the reduction of a mixture of dpp-bian and SiCl4 (1: 1) with four equivalents of potassium graphite in tetrahydrofuran. Treatment of compound 4 with diimine 1 gives the derivative (dpp-bian)2Si (5). Compounds 2–5 were characterized by 1H, 13C, and 29Si NMR spectroscopy, as well as by elemental analysis, their molecular structure was established by X-ray diffraction studies.
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Dedicated to Academician of the Russian Academy of Sciences M. P. Egorov on the occasion of his 60th birthday.
Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 11, pp. 2454–2461, Novemer, 2013.
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Fedushkin, I.L., Lukoyanov, A.N., Khvoinova, N.M. et al. 1,3,2-Diazasilols based on 1,2-bis[(2,6-diisopropylphenyl)imino]acenaphthene. Russ Chem Bull 62, 2454–2461 (2013). https://doi.org/10.1007/s11172-013-0355-z
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DOI: https://doi.org/10.1007/s11172-013-0355-z