作者:Annie Castel、Pierre Rivière、Jacques Satgé、Young-Hoon Ko
DOI:10.1016/0022-328x(88)80051-2
日期:1988.3
New organohydrogermyllithium are prepared in good yields from hydrogermolysis reactions with t-butyllithium in THF. Alkylatioin and germylation of the germaniumlithium bond in these compounds are efficientreactions and a convenient way for synthesis of organohydropolygermanes. These reagents are also useful for the formation of unknown hydrogermylmagnesium compounds
Riviere, P.; Castel, A.; Cosledan, F., Phosphorus, Sulfur and Silicon and the Related Elements, 1995, vol. 104, # 14, p. 169 - 180
作者:Riviere, P.、Castel, A.、Cosledan, F.
DOI:——
日期:——
Nouveaux aryldihydrogermyllithium
作者:A. Castel、P. Rivière、J. Satgé、D. Desor
DOI:10.1016/0022-328x(92)80129-l
日期:1992.7
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 alpha-germyl alcohols.
Synthesis and reactivity of 1,1,2,2-tetraphenyl 1,2-digermyldilithium
The new 1,1,2,2-tetraphenyl 1,2-digermyldilithium compound (2) is prepared in high yield by metallation of the corresponding aryldihydrodigermane (1) with t-BuLi in THF. It is characterized by C-13 NMR spectroscopy and by alkylation with methyl iodide. Some nucleophilic substitution reactions are reported: compound 2 reacts with MesCOCl to give a new digermyldiketone [Ph2(MesCO)Ge]2 (8). Its germylation reaction with several alkyl methoxygermanes or -digermanes constitute a convenient way for synthesizing cyclopolygermanes (3,4 or 6 rings). Its reaction with trans-Cl2Pt(PEt3)2 leads to a mixture of the expected cyclic complex 12 and its corresponding oxide 13.
CASTEL, A.;RIVIERE, P.;SATGE, J.;KO, H. Y., ORGANOMETALLICS, 9,(1990) N, C. 205-210