AEQUILIBRIERUNGSREAKTIONEN AN DISILANEN

Article abstract of DOI:10.1016/S0022-328X(00)98670-4

Redistribution reactions of Si2Me6 and Si2Cl6 and of Si2Me2Cl4 and Si2Me2H4 are discussed.While the high temperature necessary for the exchange between methyl and chlorine leads to rupture of the silicon-silicon bond in the case of the Si2Me6/Si2Cl6 system, redistribution of chlorine and hydrogen proceeds at room temperature with AlCl3 as catalyst.The reaction between Si2Me2Cl4 and Si2Me2H4 at 90 deg C is examined in detail by 1H NMR spectroscopy.This reaction is a useful route for preparation of the new compounds Me2Si2ClxH4-x (x=1-3). 1H NMR, 13C NMR, 29Si NMR, IR and Raman spectroscopic data of the partly unknown 1,2-dimethylchlorodisilanes are reported.