139599-12-5Relevant academic research and scientific papers
Reaction of germanes and digermanes with triflic acid: The route to novel organooligogermanes
Zaitsev, Kirill V.,Kapranov, Andrey A.,Oprunenko, Yuri F.,Churakov, Andrei V.,Howard, Judith A.K.,Tarasevich, Boris N.,Karlov, Sergey S.,Zaitseva, Galina S.
, p. 207 - 213 (2012/03/26)
Novel germanium containing triflates were prepared from the reactions of trifluoromethanesulfonic acid with tetraphenylgermane (1) and digermanes (Ph3GeGeMe3 (4), Ph3GeGePh3 (5)). The improved procedures for synthesis of known organogermanium compounds (Ph4Ge (1), Ph3GeCl (2), Ph3GeGeMe3 (4), Ph3GeGePh3 (5)) were also presented. The crystal structure of Ph3GeOTf (6) and Ph2Ge(OTf)Ge(OTf)Ph 2 (7) was studied by X-ray analysis. In 7 each germanium atom is pentacoordinated due to intramolecular interaction with O atom of the neighboring triflate group.
Preparation, structure, and reactivity of discrete branched oligogermanes
Amadoruge, Monika L.,Golen, James A.,Rheingold, Arnold L.,Weinert, Charles S.
, p. 1979 - 1984 (2009/02/01)
The hydrogermolysis reaction of PhGeH3 serves in the synthesis of discrete branched oligogermanes. Treatment of PhGeH3 with 3 equiv of the α-germyl nitriles R3GeCH2CN (R3 = Ph3 or Bu2CH2CH2OEt), which are generated in situ from the corresponding amides R3GeNMe2 and CH3CN, furnishes the tetragermanes PhGe(GePh3) 3 and PhGe(GeBu2CH2CH2OEt) 3 in excellent yield. The crystal structure of PhGe(GePh 3)3 was determined. This compound is the first branched oligogermane to be structurally characterized. Reaction of the tetragermane PhGe(GeBu2CH2CH2OEt)3 with Bu i2AlH generated the intermediate hydride PhGe(GeBu 2H)3. Subsequent treatment of PhGe(GeBu2H) 3 with the synthons R2Ge(NMe2)CH 2CH2OEt (R = Bu, Et, Ph) in CH3CN solution furnished the heptagermanes PhGe(GeBu2GeR2CH 2CH2OEt)3 (R = Bu, Et, Ph). The latter process also proceeds through the in situ formation of the α-germyl nitriles R2Ge(CH2CN)CH2CH2OEt.
