Preparation of Oligogermanes via the Hydrogermolysis Reaction
作者:Esla Subashi、Arnold L. Rheingold、Charles S. Weinert
DOI:10.1021/om060115x
日期:2006.6.1
the formation of germanium−germanium bonds. The Ge−Ge bond forming reaction involves a germanium amide and a germanium hydride and requires the use of acetonitrile as the solvent. A key factor in the formation of the Ge−Ge bond involves reaction of the germanium amide R3GeNMe2 with acetonitrile solvent to furnish an α-germylated nitrile R3GeCH2CN which contains a labile Ge−C bond. This species undergoes
Photodecompostion of the Oligogermanes nBu3GeGePh2GenBu3 and nBu3GeGePh3: Identification of the Photoproducts by Spectroscopic and Spectrometric Methods
作者:Sangeetha P. Komanduri、Aaron C. Schrick、Christa L. Feasley、Craig P. Dufresne、Charles S. Weinert
DOI:10.1002/ejic.201600421
日期:2016.7
The oligogermanenBu3GeGePh2GenBu3 was photolyzed using UV-C light in the presence of acetic acid as a trapping agent and the photoproducts were identified using 1H NMR spectroscopy, gas chromatography/electron-impact mass spectrometry, and high resolution accurate mass mass spectrometry. The products identified were the germanes nBu3GeH, nBu3GeOAc, and Ph2Ge(H)OAc (OAc = C2H3O2) and the digermane
Homolytic hydrogermylation of alkenes with dibutylchlorogermane
作者:Katsukiyo Miura、Kazunori Ootsuka、Akira Hosomi
DOI:10.1016/j.jorganchem.2006.04.043
日期:2007.1
In the presence of Et3B-dry air, dibutylchlorogermane (Bu2GeClH) reacted smoothly with alkenes at room temperature to give hydrogermylation products in high yields. This homolytic hydrogermylation was applicable to various alkenes including electron-deficient, electron-rich, and internal alkenes. Under the same conditions, tributylgermane (Bu3GeH) showed much lower reactivity than Bu2GeClH. The Et3B-initiated reaction of 1,6-dienes with Bu2GeClH gave germylmethylated cyclopentanes. (c) 2006 Elsevier B.V. All rights reserved.
The synthesis of the digermyl and germylsilyl hydronium borates 7[B(C6F5)(4)] and 8[B(C6F5)(4)] is reported. Spectroscopic (IR, NMR) and structural data supported by the results of density functional calculations indicate in both cases a symmetric or almost symmetric E-H-E' three-center-two-electron linkage (7, E = E' = Ge; 8, E = Si, E' = Ge). The [B(C6F5)(4)](-) and the [HCB11H5Br6](-). salts of both cations are active in catalytic hydrodefluorination reactions of alkyl and benzyl fluorides. No significant effect of the element atom E on the determined turnover numbers was found.