Tris(pentafluoroethyl)germane: Deprotonation and Hydrogermylation Reactions.
作者： Stefanie Pelzer , Beate Neumann , Hans-Georg Stammler , Nikolai Ignat'ev , Berthold Hoge
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摘要: Owing to the highly electron-withdrawing C2F5 groups, tris(pentafluoroethyl)germane (C2F5)(3)GeH represents an interesting Bronsted acidic compound. The germane is accessible by treatment of corresponding halogenogermanes (C2F5)(3)GeX (X= Cl, Br) with Bu3SnH. After clarifying its molecular structure in solid state X-ray diffraction, acidity was examined different bases, for example, 1,8-bis(dimethylamino) naphthalene. resulting germanate(II) ion [Ge(C2F5)(3)](-) serves as a germyl group transfer reagent. reaction main-group and transition-metal complexes or organohalides opens access variety compounds, structures which were mostly determined diffraction. tricarbonylnickelate(0) complex [(CO)(3)NiGe(C2F5)(3)](-) also gives information about pi-acceptor properties ligand. Furthermore, hydrogermylation reactions alkynes afforded stereoisomers (alpha,beta-cis, beta-trans) depending on respective conditions substrates.
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