Abstract
A reaction of previously synthesized germylenes and stannylenes based on aminobisphenols RN{CH2[(5-R´)(3-But)C6H2(2-O—)]}2MII, M = Ge, R = CH2(2-Py), R´ = But (1); M = Ge, R = Et, R´ = Me (2); M = Sn, R = CH2(2-Py), R´ = But (3); M = Sn, R = Et, R´ = Me (4), containing (tetrylenes 1 and 3) or not containing (tetrylenes 2 and 4) a group capable of additional donation, with allyl bromide leads to the products of the insertion of tetrylenes into the C—Br bond: RN{CH2[(5-R´)(3-But)C6H2(2-O—)]}2M(Br)All, M = Ge, R = CH2(2-Py), R´ = But (5); M = Ge, R = Et, R´ = Me (6); M = Sn, R = CH2(2-Py), R´ = But (7); M = Sn, R = Et, R´ = Me (8). The structures of obtained derivatives were confirmed by NMR spectroscopy and elemental analysis. The structures of compounds 4, 5, and 7 were studied by X-ray crystallography. Stannylene 4 was found to be monomeric in the solid phase: the coordination number of the Sn atom is 3. The insertion products 5 and 7 are characterized by the coordination number 6 for the central atom.
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Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 4, pp. 0622—0627, April, 2017.
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Zaitsev, K.V., Kuchuk, E.A., Churakov, A.V. et al. Germylenes and stannylenes based on aminobisphenolate ligands: insertion into the C—Br bond. Russ Chem Bull 66, 622–627 (2017). https://doi.org/10.1007/s11172-017-1782-z
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DOI: https://doi.org/10.1007/s11172-017-1782-z