- Selective synthesis of chlorohydrogermanes from mono-, di-, and trihydrogermanes
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Treatment of hydrogermanes, R4-nGeHn (R = Hex, Et, Ph, n = 1-3), with 2 equiv of CuCl2 in ether at room temperature or in toluene under reflux led to selective replacement of an H-Ge bond with a Cl-Ge bond, giving the corresponding chlorohydrogermanes, R4-nGeHn-1Cl, selectively.
- Ohshita, Joji,Toyoshima, Yutaka,Iwata, Arihiro,Tang, Heqing,Kunai, Atsutaka
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p. 886 - 887
(2007/10/03)
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- ASSISTANCE NUCLEOPHILE DANS DES REACTIONS DE REDUCTION D'ORGANOHALOGENO- ET HALOGENO-GERMANES PAR DES REDUCTEURS DOUX R3M(IVB)-H ET RCHO: GERMYLANIONS, DERIVES FONCTIONNELS DU GERMANIUM
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Catalytic activity of nuclophiles such as tertiary amines and diazo derivatives in the reduction of halogermanes by means of gentle reductive agents, such as R3M(IVB)-H or RCHO, has been shown.In the particular case of enolisable aldehyde, a competition between nucleophilic substitution at the metal and germanium-halogen bond reduction has been observed.Transposition of enoxygermanes formed through the substitution process, leads to β-germylaldehydes.
- Castel, A.,Riviere, P.,Satge, J.
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p. 137 - 146
(2007/10/02)
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