72876-19-8Relevant academic research and scientific papers
Hydrogen Donor Abilities of Germanium Hydrides
Chatgilialoglu, Chryssostomos,Ballestri, Marco,Escudié, Jean,Pailhous, Isabelle
, p. 2395 - 2397 (1999)
Rate constants for the reaction of primary alkyl radicals with a variety of germanium hydrides have been measured by using the one-carbon ring expansion of cyclopentanones as a timing device. The radical-trapping abilities of these germanes and other common group 14 hydrides are compared.
Steady-state photolysis of dimesitylbis(trimethylsilyl)germane
Hurni, Krysten L.,Baines, Kim M.
, p. 668 - 674 (2008/09/19)
The photolysis of dimesitylbis(trimethylsilyl)germane (3) in hexanes or THF, at low temperature, has been investigated as a potential method for the preparative-scale synthesis of tetramesityldigermene (5). A product mixture, consisting of hexamethyldisilane, mesitylene, 2-trimethylsilylmesitylene (7), a new germacyclobutene (8), and an unidentified polymer, was obtained. No evidence for the formation of tetramesityldigermene (5) was observed.
Improved synthesis of 1,2-dichlorotetramesityldigermane and other mesitylgermanes
Cooke, Jeffrey A.,Dixon, Craig E.,Netherton, Matthew R.,Kollegger, Gerlinde M.,Baines, Kim M.
, p. 1205 - 1217 (2008/10/09)
An improved procedure for the synthesis of 1,2-dichlorotetramesityldigermane is reported.
Reaction between (chlorodimesitylsilyl)diarylgermanes and tert-butyllithium in THF: Formation of new germyllithium compounds
Baines, Kim M.,Groh, Robert J.,Joseph, Babu,Parshotam, Umesh R.
, p. 2176 - 2180 (2008/10/08)
Treatment of (chlorodimesitylsilyl)diarylgermanes (1, Ar = 2,4,6-trimethylphenyl = mesityl = Mes; 2, Ar = 2,4,6-triisopropylphenyl) with excess tert-butyllithium in THF followed by quenching the reaction mixture with methanol gave (dimesitylsilyl)diarylge
Nouveaux aryldihydrogermyllithium
Castel, A.,Riviere, P.,Satge, J.,Desor, D.
, p. 49 - 61 (2007/10/02)
The new aryldihydrogermyllithium complexes RH2GeLi (R = Ph, Mes) are prepared, in good yields, by metallation of the parent trihydrogermane with t-butyllithium in THF.They are characterized by alkylation reactions with MeI.Some germylation reactions are reported: they lead to the formation of new functional aryldihydrogermanes and aryldigermanes by a nucleophilic substitution.These aryldihydrogermyllithium complexes react also with acyl chlorides RCOCl (R = Ph, Mes) to give new diacyl- and triacyl-germanes.These easily add to the carbonyl group of aromatic aldehydes, thereby giving the corresponding α-germyl alcohols.
New (diarylgermyl)lithiums
Castel,Riviere,Satge,Ko
, p. 205 - 210 (2008/10/08)
The new (diarylgermyl)lithiums R2GeHLi (2; R = phenyl, mesityl) were prepared in good yields by hydrogermolysis reactions of tert-butyllithium in THF. The stability of compounds 2 depends on the nature of the R group and the solvent. For R = Ph, in the presence of an amine (Et3N or Et2NMe), the same reaction leads to the formation of the polygermanes H(GePh2)nH (n = 2-4). The characterization of compounds 2 by IR and 1H and 13C NMR spectroscopy and their complexation with a crown ether are also reported. They are characterized by deuterolysis and alkylation reaction (with MeI and Me2SO4). Their germylation reactions with Ge-Cl reagents constitute a convenient way for synthesizing organo-hydropolygermanes. Compounds 2 also react with acyl chlorides to give new germyl ketones, R2HGeCOR′, and the unexpectedly stable β-germyl diketone Ph2Ge(COMes)2.
Arylhydrogermyllithiums: synthese et applications
Castel, Annie,Riviere, Pierre,Satge, Jacques,Ko, Young-Hoon
, p. C1 - C4 (2007/10/02)
New organohydrogermyllithium are prepared in good yields from hydrogermolysis reactions with t-butyllithium in THF.Alkylation and germylation of the germanium-lithium bond in these compounds are efficient reactions and a convenient way for synthesis of organohydropolygermanes.These reagents are also useful for the formation of unknown hydrogermylmagnesium compounds.
