Synthese von 6,6,7,7,13,13,14,14-Octamethyl-6,7,13,14-tetrasiladispiro[4.2.4.2]-tetradeca-1,3,9,11-tetraen und sein Einsatz in der [pi]-Komplexchemie von p- und d-Block-Elementen

Jutzi P, Krallmann R, Wolf G, Neumann B, Stammler H-G (1991)
Chemische Berichte 124(11): 2391-2399.

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SYNTHESIS OF 6,6,7,7,13,13,14,14-OCTAMETHYL-6,7,13,14-TETRASILADISPIRO[4.2.4.2]TETRAD ECA-1,3,9,11-TETRAENE AND ITS APPLICATION IN THE CHEMISTRY OF PI-COMPLEXES OF P-BLOCK AND D-BLOCK ELEMENTS
Abstract
The title compound 2 can be synthesized either by reaction of ([C5H5SiMe2SiMe2C5H5]2- 2 Li+) with XSiMe2SiMe2X or by an intermolecular nucleophilic substitution reaction between two molecules of ([XSiMe2SiMe2C5H5]- Li+). Isomers of 2 with allylic hydrogen atoms arise from silatropic rearrangements and therefore show "cyclopentadiene reactivity". Reaction of the monoanion of 2 with FeCl2 yields the ferrocene 4. From the reaction of the dianion of 2 with Me5C5RuCl, the binuclear ruthenium complex 7 with Si - Si bridges in 1,2-position can be isolated; reactions with FeCl2 or Me5C5Fe(acac), with Me5C5GeCl, with SnCl2, and with PbCl2, lead to the metallocenes 6, 7, 8, and 9; in all these complexes the disilane bridges are in 1,2-position. The binuclear cobalt complex 10, in which the cyclopentadienyl rings are connected with each other by disilane bridges in 1,3-position, can be synthesized by the reaction of 2 with Co2(CO)8. The results of single-crystal X-ray structure analyses of 6 and 10 are presented. The possible conformations of the dianion of 2 are discussed.
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Jutzi P, Krallmann R, Wolf G, Neumann B, Stammler H-G. Synthese von 6,6,7,7,13,13,14,14-Octamethyl-6,7,13,14-tetrasiladispiro[4.2.4.2]-tetradeca-1,3,9,11-tetraen und sein Einsatz in der [pi]-Komplexchemie von p- und d-Block-Elementen. Chemische Berichte. 1991;124(11):2391-2399.
Jutzi, P., Krallmann, R., Wolf, G., Neumann, B., & Stammler, H. - G. (1991). Synthese von 6,6,7,7,13,13,14,14-Octamethyl-6,7,13,14-tetrasiladispiro[4.2.4.2]-tetradeca-1,3,9,11-tetraen und sein Einsatz in der [pi]-Komplexchemie von p- und d-Block-Elementen. Chemische Berichte, 124(11), 2391-2399.
Jutzi, P., Krallmann, R., Wolf, G., Neumann, B., and Stammler, H. - G. (1991). Synthese von 6,6,7,7,13,13,14,14-Octamethyl-6,7,13,14-tetrasiladispiro[4.2.4.2]-tetradeca-1,3,9,11-tetraen und sein Einsatz in der [pi]-Komplexchemie von p- und d-Block-Elementen. Chemische Berichte 124, 2391-2399.
Jutzi, P., et al., 1991. Synthese von 6,6,7,7,13,13,14,14-Octamethyl-6,7,13,14-tetrasiladispiro[4.2.4.2]-tetradeca-1,3,9,11-tetraen und sein Einsatz in der [pi]-Komplexchemie von p- und d-Block-Elementen. Chemische Berichte, 124(11), p 2391-2399.
P. Jutzi, et al., “Synthese von 6,6,7,7,13,13,14,14-Octamethyl-6,7,13,14-tetrasiladispiro[4.2.4.2]-tetradeca-1,3,9,11-tetraen und sein Einsatz in der [pi]-Komplexchemie von p- und d-Block-Elementen”, Chemische Berichte, vol. 124, 1991, pp. 2391-2399.
Jutzi, P., Krallmann, R., Wolf, G., Neumann, B., Stammler, H.-G.: Synthese von 6,6,7,7,13,13,14,14-Octamethyl-6,7,13,14-tetrasiladispiro[4.2.4.2]-tetradeca-1,3,9,11-tetraen und sein Einsatz in der [pi]-Komplexchemie von p- und d-Block-Elementen. Chemische Berichte. 124, 2391-2399 (1991).
Jutzi, Peter, Krallmann, R., Wolf, G., Neumann, Beate, and Stammler, Hans-Georg. “Synthese von 6,6,7,7,13,13,14,14-Octamethyl-6,7,13,14-tetrasiladispiro[4.2.4.2]-tetradeca-1,3,9,11-tetraen und sein Einsatz in der [pi]-Komplexchemie von p- und d-Block-Elementen”. Chemische Berichte 124.11 (1991): 2391-2399.
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