Catalysis of triethoxysilane disproportionation with oligoethylene glycol ethers

Disproportionation of Triethoxysilane over Anion Exchange Resins

“…In line with the mechanism proposed by previous authors [5,8,9], we postulate the disproportionation of TES (Eq. 2) to proceed via the pentacoordinate silicon intermediates accompanied by the repeated replacement of the ethoxide ion with the hydride ion.…”

“…The disproportionation of alkoxysilanes, such as trimethoxysilane and triethoxysilane (TES), in the presence of homogeneous or heterogeneous catalysts has been reported [1][2][3][4][5][6][7][8][9][10], but the reaction is still under active research since it yields an industrially important product, namely monosilane. Monosilane is widely used as a precursor for the production of amorphous and microcrystalline high purity silicon for application in the production of solar cells, semiconductors, photosensitive materials and ceramic materials [11][12][13].…”

Synthesis, structure, immobilization and solid-state NMR of new dppp- and tripod-type chelate linkers

“…The lithium salt Ph 2 PCH 2 Li(TMEDA) (5) was obtained as described in the literature [23]. It should be mentioned that an attempt to obtain 2 along with Si(OEt) 4 by disproportionation of Ph 2 PCH 2 Si(OEt) 3 [17] using CsF, as successfully applied to HSi(OEt) 3 [24], unfortunately did not work.…”

Radical‐Initiated Dismutation of Hydrosiloxanes by Catalytic Potassium‐Graphite

“…Silane has been used as precursor for the production of high purity silicon applications, and for the hydrosilylation of olefins . The disproportionation of TES has been studied with Ti‐based catalysts such as Ti(O‐iPr) 4 , various metal‐oxides supports, or with stoichiometric amount of glycol ethers derivatives . More recently, the use of anion exchange resins (Amberlite®) resulted in excellent conversion of TES into (EtO) 4 Si and SiH 4 , at 40 °C .…”