20089-37-6

Upstream product

• 994-30-9 triethylsilyl chloride 
• 1631-84-1 dichlorophenylsilane 
• 597-52-4 Triethylsilanol 
• 694-53-1 phenylsilane 

Relevant academic research and scientific papers

Cobalt-Catalyzed Selective Synthesis of Disiloxanes and Hydrodisiloxanes

Selective syntheses of symmetrical siloxanes and cyclotetrasiloxanes are attained from reactions of silanes and dihydrosilanes, respectively, with water, and the reactions are catalyzed by a NNNHtBu cobalt(II) pincer complex. Interestingly, when phenylsilane was subjected to catalysis with water, a siloxane cage consisting 12 silicon and 18 oxygen centers was obtained and remarkably the reaction proceeded with liberation of 3 equiv of molecular hydrogen (36 H2) under mild experimental conditions. Upon reaction of silane with different silanols, highly selective and controlled syntheses of higher order monohydrosiloxanes and disiloxymonohydrosilanes were achieved by cobalt catalysis. The liberated molecular hydrogen is the only byproduct observed in all of these transformations. Mechanistic studies indicated that the reactions occur via a homogeneous pathway. Kinetic and independent experiments confirmed the catalytic oxidation of silane to silanol, and further dehydrocoupling processes are involved in syntheses of symmetrical siloxanes, cyclotetrasiloxanes, and siloxane cage compounds, whereas the unsymmetrical monohydrosiloxane syntheses from silanes and silanols proceeded via dehydrogenative coupling reactions. Overall these cobalt-catalyzed oxidative coupling reactions are based on the Si-H, Si-OH, and O-H bond activation of silane, silanol, and water, respectively. Catalytic cycles consisting of Co(II) intermediates are suggested to be operative.

COMPLEX COMPOUND, AND PRODUCTION METHOD OF SILOXANE

PROBLEM TO BE SOLVED: To provide a production method of siloxane capable of producing siloxane efficiently; and to provide a compound useful in production of siloxane. SOLUTION: In a method, siloxane is produced efficiently, by progressing a dehydrogenati

Highly Selective Synthesis of Hydrosiloxanes by Au-Catalyzed Dehydrogenative Cross-Coupling Reaction of Silanols with Hydrosilanes

We report a highly selective synthesis of siloxane building blocks containing SiH2 or SiH functionalities. AuCl(PPh3)/PPh3 or AuCl(PPh3)/PnBu3 system catalyzed the reaction of trihydrosilanes with silanols giving SiH2-containing siloxanes exclusively. On the other hand, a highly selective reaction of dihydrosilanes with silanols to afford SiH-containing siloxanes was achieved by simply changing the phosphine ligand to a bidentate one, xantphos. Usefulness of SiH2-containing siloxanes was demonstrated by the synthesis of a trisiloxane, Et3SiOSi(Ph)(H)OSitBuMe2, and a pentasiloxane, Ph2Si(OSiHPhOSiEt3)2, bearing SiH functionalities.

Method of manufacturing polyimidesiloxane compd. (by machine translation)

PROBLEM TO BE SOLVED: rhodium, platinum, and palladium complex or the like instead of the catalyst is found, to provide a new method for manufacturing polyimidesiloxane compd. ~~~ a SOLUTION: and in the condensation reaction silanolated hydrosilane, nickel compound represented by the following eq. (C) is used as a catalyst, siloxane compound can be produced. [And 1] ( In the formula, R 3 are each independently a hydrogen atom, or a nitrogen atom, an oxygen atom, a sulfur atom, a silicon atom, phosphorus atom, and a halogen atom is selected from the group consisting of at least 1 may also include a kind of carbon number 1-20 hydrocarbon group. ) Selected drawing: no (by machine translation)