28714-29-6Relevant articles and documents
Fritz,Haehnke
, p. 48,58, 61 (1970)
Synthesis and Spectroscopic Characterization of Di- and Trisilylethenes
Schmidbaur, H.,Ebenhoech, J.
, p. 1543 - 1548 (2007/10/02)
Di- and trisilylethenes have been prepared by catalytic hydrosilylation of trimethylsilyl-, bis(trimethylsilyl)- and bis(trichlorosilyl)ethyne and converted into the hydrogenated derivatives by LiAlH4-reduction.The stereochemistry of the products and the effects of substitution of methyl vs. chlorine ligands on the NMR coupling constants J(29Si/1H) have been investigated by analysis of selectively (Me)-decoupled 29Si NMR spectra.From the results it has been concluded, that the catalytic hydrosilylation of silylated ethynes proceeds in a stereospecific syn fashion yield ing trans adducts.Substitution of methyl by chlorine at one or two Si-atoms in tris(trimethylsilyl)ethene leads to an increase of the coupling constant J(29Si/1H vinyl) with the chlorinated Si-atoms and reduces the values for those Si-atoms, where the methyl groups are retained. - Keywords: Di- and Trisilylethenes, Catalytic Hydrosilylation
ADDITION OF CHLORODISILANES TO ACETYLENE CATALYZED BY TETRAKIS(TRIPHENYLPHOSPHINE)PALLADIUM(0). A FACILE ROUTE TO (Z)-1,2-BIS(CHLOROSILYL)ETHENES
Matsumoto, Hideyuki,Matsubara, Ikuya,Kato, Takayuki,Shono, Koichi,Watanabe, Hamao,Nagai, Yoichiro
, p. 43 - 48 (2007/10/02)
In the presence of a catalytic amount of tetrakis(triphenylphosphine)palladium(0), chlorodisilanes of type MenSi2Cl6-n (n=2-5) add to acetylene to afford 1,2-bis(chlorosilyl)ethenes in reasonable yields.
