The reaction between vinylgermanes and iron carbonyls yields, besides π-olefin complexes, the cluster compound Ge[Fe(CO)4]4 (I), characterized here by X-ray crystallography. The presence of an unsaturated substituent at the Ge atom plays an important role in the formation of I.
Reactivity of dianionic hexacoordinate germanium complexes toward organometallic reagents. A new route to organogermanes
作者:G. Cerveau、C. Chuit、R. J. P. Corriu、C. Reye
DOI:10.1021/om00051a049
日期:1991.5
Lithium and potassium tris(benzene-1,2-diolato)germanates (2a and 2b, respectively) and potassium tris(butane-2,3-diolato)germanate (3) are easily prepared from GeO2 in quantitative yields. They are very reactive toward organometallic reagents, the reactivity depending on the ligands on the germanium. Complexes 2 react with an excess of Grignard reagent to give the corresponding tetraorganogermanes R4Ge while the less reactive complex 3 leads to the functional triorganogermanes R3GeX. Tetraorganogermanes can also be prepared from complex 2b by reaction with organic bromides in the presence of Mg (Barbier reaction). The influence of Cp2TiCl2 and MgBr2 on the reactivity of Grignard reagents with these complexes was also investigated: in both cases formation of triorganogermanes was favored.
Vinyl Derivatives of the Metals. IV. The Preparation of Vinylgermanium Compounds by the Grignard Method<sup>1</sup>
作者:Dietmar Seyferth
DOI:10.1021/ja01568a019
日期:1957.6
? Complexes of vinylgermanes and hexavinyldigermane with iron carbonyls
作者:I. M. Salimgareeva、N. G. Bogatova、O. Zh. Zhebarov、L. V. Rybin、A. A. Pogrebnyak、M. I. Rybinskaya、V. P. Yur'ev
DOI:10.1007/bf00949963
日期:1982.5
Reaction of Tetrachlorogermane with Vinylmagnesium Chloride
作者:V. I. Zhun'、I. V. Sbitneva、A. V. Kisin、E. A. Chernyshev