1,3,2-Diazasilols based on 1,2-bis[(2,6-diisopropylphenyl)imino]acenaphthene |
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Authors: | I L Fedushkin A N Lukoyanov N M Khvoinova A V Cherkasov |
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Institution: | 1. G. A. Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences, 49 ul. Tropinina, 603950, Nizhny Novgorod, Russian Federation
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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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