14920-92-4Relevant articles and documents
Novel fluoride ion mediated synthesis of unsymmetrical siloxanes under phase transfer catalysis conditions
Abele, Ramona,Abele, Edgars,Fleisher, Mendel,Grinberga, Solveiga,Lukevics, Edmunds
, p. 52 - 57 (2003)
Unsymmetrical siloxanes have been prepared from silanols or hydrosilanes using phase transfer catalytic (PTC) systems Me3 SiN3-CsF-18-crown-6-toluene or Me3SiN 3-CsF-18-crown-6-H2O-toluene, correspond
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Okinoshima,H.,Weber,W.P.
, p. 279 - 287 (1978)
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Preparation method and application of trimethyl silicon alkoxide
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Paragraph 0023; 0024, (2017/10/22)
The invention discloses a preparation method and an application of trimethyl silicon alkoxide. The preparation method includes the preparation steps: placing hexamethyldisiloxane and potassium hydroxide into a 10L three-mouth flask; adding 10ml of alcohol preparations; performing heating reflux for 48 hours; dividing water by a water knockout trap; cooling, filtering and drying materials to obtain white solid potassium trimethylsilanolate. Inexpensive trimethyl silicon alkoxide (MM) in industrial production serves as a raw material, and the trimethyl silicon alkoxide and the potassium hydroxide are subjected to heating reflux reaction under various catalysts to prepare potassium trimethylsilanolate with high content. All the catalysts are beneficial to dissolution of the potassium hydroxide, and reaction is facilitated.
Pd/C-catalyzed cross-coupling reaction of benzyloxysilanes with halosilanes for selective synthesis of unsymmetrical siloxanes
Igarashi, Masayasu,Kubo, Keiko,Matsumoto, Tomohiro,Sato, Kazuhiko,Ando, Wataru,Shimada, Shigeru
, p. 19099 - 19102 (2014/05/20)
A new protocol for the nonhydrolytic synthesis of unsymmetrical siloxanes has been developed. The cross-coupling reaction of benzyloxysilanes with halosilanes catalyzed by Pd/C afforded various unsymmetrical siloxanes with co-production of benzyl halides. the Partner Organisations 2014.
Silylation of silanols with vinylsilanes catalyzed by a ruthenium complex
Marciniec, Bogdan,Pawlu?, Piotr,Hreczycho, Grzegorz,Macina, Anna,Madalska, Martyna
, p. 1310 - 1313 (2008/09/18)
A new ruthenium complex-catalyzed O-silylation of silanols with vinylsilanes leading to siloxane bond formation with the evolution of ethylene is described. A maximum conversion of silanol is reached using an excess of vinylsilane to also yield the product of the homo-coupling of the latter. Under the optimum conditions, when vinylsilane with at least one ethoxy substituent is used, the reaction gives exclusively unsymmetrical siloxanes.