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• W2043140058 abstract "Durch Addition von zwei Moläquivalente Lithium—Metall an die SiP-Bindung in den Silylidenphosphanen („Phosphasilenen”︁) Is2SiP(SiiPr3) und Is2SiP(SiPh2Me) (Is = 2,4,6-iPr3C6H2) in Tetrahydrofuran entstehen die korrespondierenden Lithiumsilanidyl-lithiumsilylphosphanide, die als hellgelbe Feststoffe isoliert wurden; jedes Li-Zentrum ist durch zwei Tetrahydrofuran-Moleküle solvatisiert. Die Konstitution der Dilithiumverbindungen ist durch Multikern-NMR-Spektroskopie und durch Derivatisierungsreaktionen mit Wasser, Deuteriumoxid, Dichlordimethylsilan und tert-Butylquecksilberchlorid gesichert. Die Umsetzung mit Dichlordimethylsilan führt unter Cyclokondensation und Eliminierung von Lithiumchlorid zu den ersten Disilaphosphacyclopropan-Derivaten und die Umsetzung mit tert-Butylquecksilberchlorid ergibt unter Verlust der Triorganosilylgruppe am Phosphor und Umlagerungsprozesse ein ungewöhnliches P, P-Dimercuriosilylphosphan. Letzteres reagiert mit tert-Butylquecksilberchlorid und Quecksilberdichlorid im Molverhältnis von 2 : 1 : 1 zu einem molekularen Aggregat mit einem P2Hg6Cl3-Gerüst, das als Lewis-Säure-Base Komplex eines Mercuriophosphan-Chelatliganden und Quecksilberdichlorid betrachtet werden kann. Is2Si(Li)P(Li)SiR3 (Is = 2,4,6-iPr3C6H2): The First Lithiumsilanidyl-lithiumphosphanides and their Transformation into Disilaphosphiranes and Novel Mercuriophosphanes Upon addition of two mol equivalents lithium metal to the SiP bond of the silylidenephosphanes (“phosphasilenes”) Is2SiP(SiiPr3) and Is2SiP(SiPh2Me) (Is = 2,4,6-iPr3C6H2) in tetrahydrofurane, the corresponding lithiumsilanidyl-lithiumsilylphosphanides are formed, which have been isolated as pale yellow solids; each Li center is solvated by two tetrahydrofurane molecules. The constitution of these compounds is established by multi nuclei NMR spectroscopy and derivatization reactions with water, deuteriumoxide, dichlorodimethylsilane, and tert-butylmercuriochloride, respectively. The reaction with dichlorodimethylsilane yields, via cyclocondensation reaction and elimination of lithiumchloride, the first disilaphosphacyclopropane derivatives, and the reaction with tert-butylmercuriochloride gives, under loss of the triorganosilyl group at phosphorus and via rearrangement processes, an unusual P, P-dimercuriosilylphosphane; the latter reacts with tert-butylmercuriochloride and mercuriodichloride in the molar ratio of 2 : 1 : 1 to give an molecular aggregate bearing a P2Hg6Cl3 framework, which can be regared as an Lewis-acid base complex of a mercuriophosphane chelate ligand and mercuriodichloride." @default.
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• W2043140058 title "Is2Si(Li)?P(Li)SiR3 (Is = 2,4,6-iPr3C6H2): die ersten Lithiumsilanidyl-lithiumphosphanide und ihre Umwandlung in Disilaphosphirane und neuartige Mercuriophosphane" @default.
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• W2043140058 doi "https://doi.org/10.1002/zaac.19966220518" @default.
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