180922-90-1Relevant academic research and scientific papers
Generation of silylethynolates via C-Si bond cleavage of disilylketenes induced by t-BuOK
Ito, Masato,Shirakawa, Eiji,Takaya, Hidemasa
, p. 1329 - 1331 (2007/10/03)
Disilylketenes undergo selective mono-desilylation upon treatment of t-BuOK in the presence of HMPA. The resulting silylethynolates are convertible to other disilylketenes in good yields. The intermediary silylethynolate was analyzed by NMR and IR spectroscopy.
Silylation of silyl-and germylketenes containing bulky substituents at the silicon or germanium atom
Ponomarev,Zolotareva,Ezhov,Kuznetsov,Petrosyan
, p. 1093 - 1096 (2007/10/03)
Silylation of silyl-and germylketenes with trialkylsilyl triflates was studied. Either the corresponding bis-organoelement-substituted ketenes or mixtures of these compounds with isomeric (silyloxy)silylacetylenes were formed depending on the size of the substituents at the silicon or germanium atom (both in ketenes and triflates) and on the nature of the heteroelement. The resulting (silyloxy)silylacetylenes were isomerized into the corresponding bis-silylketenes upon prolonged storage.
Silylation and germylation of trialkylsilyl(germyl)ethoxyacetylenes containing bulky substituents at the silicon or germanium atom
Ponomarev,Zolotareva,Leont'ev,Kuznetsov,Petrosyan
, p. 1088 - 1092 (2007/10/03)
Silylation and germylation of trialkylsilyl(germyl)ethoxyacetylenes containing bulky substituents at the silicon or germanium atom were performed. In all cases, the corresponding bis-organoelement-containing ketenes were obtained as the only reaction products. No intermediate isomeric ynol ethers were detected by spectroscopy.
