1450-23-3

Usage

Uses

1. High-temperature applications:
Hexaphenyldisilane is used in high-temperature applications due to its thermal stability and ability to withstand extreme conditions.
2. Silylating agent in meta-selective C-H bond silylation:
Used in Chemical Synthesis:
Hexaphenyldisilane is used as a silylating agent for meta-selective C-H bond silylation, in conjunction with Pd catalysts. This application is crucial for the synthesis of various organic compounds with specific structural requirements.
3. Conversion of [11C]CO2 to [11C]CO in radiochemistry:
Used in Radiochemistry:
Hexaphenyldisilane is used as a silylating agent for the conversion of [11C]CO2 to [11C]CO after fluoride activation. This process is essential in the production of radiolabeled carbon monoxide, which is widely used in medical imaging and research.

InChI:InChI=1/C36H30Si2/c1-7-19-31(20-8-1)37(32-21-9-2-10-22-32,33-23-11-3-12-24-33)38(34-25-13-4-14-26-34,35-27-15-5-16-28-35)36-29-17-6-18-30-36/h1-30H

Upstream product

• 76-86-8 Triphenylsilyl chloride 
• 1623-99-0 phenyl sodium 
• 789-25-3 HSiPh₃ 
• 41114-91-4 Menthyloxy-α-naphthyl-phenyl-silan 
• 791-30-0 triphenylsilyl-lithium 
• 56-23-5 tetrachloromethane 
• 13596-23-1 perchlorotrisilane 
• 13517-13-0 disilicon hexabromide 
• 13465-77-5 hexachlorodisilane 
• 15487-82-8 triphenylsilylkalium 
• 98-13-5 Phenyltrichlorosilane 
• 1450-18-6 1,1,1-trimethyl-2,2,2-triphenyldisilane 
• 18870-36-5 (1-methyl-1-phenyl-ethyl)-triphenyl-silane 
• 1829-41-0 methoxy-triphenyl-silane 

Downstream Products

• 18822-04-3 1,2-bis(triphenylsilyl)ethane 
• 18727-85-0 (1,4-dihydro-[4]pyridyl)-triphenyl-silane 
• 6990-64-3 triphenylsilyl bromide 
• 136839-65-1 C₃₁H₂₅F₃O₃SSi₂ 
• 136839-66-2 C₂₆H₂₀F₆O₆S₂Si₂ 
• 18751-39-8 (C₆H₅)3Si(OC₄H₉-t) 
• 15487-82-8 triphenylsilylkalium 
• 76-86-8 Triphenylsilyl chloride 
• 50518-28-0 1,1,2-Triphenyl-disilan 
• 104925-65-7 1,2-Difluortetraphenyldisilan 
• 122760-51-4 1,1,1,3,3,3-Hexaphenyl-trisilane 
• 791-30-0 triphenylsilyl-lithium 
• 85465-20-9 1,1,2-Trichlorotriphenyldisilan 
• 18602-99-8 triphenylsilyl radical 

Relevant academic research and scientific papers

CHEMISTRY OF ALKALI METAL-UNSATURATED HYDROCARBON ADDUCTS. XI. ESR MONITORING OF TRANSIENT RADICAL-ANIONS FROM UNSATURATED ORGANOSILANES

By the potassium-metal reduction of a series of α,β-unsaturated organosilanes at low temperatures, radical-anionic intermediates were generated.Both the detailed structure of such radical-anions and their chemical transformations were studied by a combination of ESR spectroscopy and chemical characterization.Relatively stable radical-anions were obtained from the methyl(phenyl)silanes, tetraphenylsilane and hexaphenyldisilane, but even these decomposed eventually through cleavage and coupling processes.More labile radical-anions arose from organosilanes of the type, Ph3SiE, where E was chloro, cyclopropyl, substituted biphenyl, vinyl, 1-propenyl and 1-propynyl.In several cases, the transient parent radical-anion could be measured with ESR spectroscopy by working at low temperatures in the presence of HMPT.As an aid to deciding among several possible structural assignments of an ESR spectrum, the actual chemical products obtained from such reductions were scrutinized.The conclusion reached from these studies is that that part of the organosilane molecule bearing the highest free electron spin density in the radical-anion is the site of highest chemical reactivity.Sites of radical-coupling, chemical reduction, isomerization and carbon-silicon bond cleavage can be predicted from such ESR data.

Disilane and preparation method thereof

The invention discloses disilane and a preparation method thereof. The preparation method of disilane includes: subjecting a uniformly mixed reaction system containing tertiary hydrosilane and a catalyst to dehydrogenation reaction at a temperature ranging from -10DEG C to 120DEG C to obtain disilane, wherein the catalyst comprises a silver salt. The invention also discloses the disilane preparedby the method. The method for preparation of the disilane by catalyzing tertiary silane dehydrogenation with the silver salt adopts the silver salt to activate the Si-H bond in the silane so as to realize construction of disilane. Therefore, the invention provides an efficient and simple method for preparation of the compound, and the application prospect is wide.

METHOD FOR PRODUCING SILYL SODIUM COMPOUND AND METHOD FOR DEOXIDIZING EPOXY COMPOUND

PROBLEM TO BE SOLVED: To construct a technique which can simply, efficiently and inexpensively synthesize a silyl sodium compound in a small number of processes and in a short time, especially to construct a technique which synthesizes a silyl sodium compound by using easily available reagents from a viewpoint of sustainability without using reagents which are difficult to handle and are toxic. SOLUTION: There is provided a method for synthesizing a silyl sodium compound comprising a step of reacting a dispersion obtained by dispersing a silyl halide compound or a disilane compound with sodium into a dispersion solvent, the silyl halide compound or the disilane compound as a starting compound, in a reaction solvent to obtain the silyl sodium compound. There is also provided a method for deoxidizing an epoxy compound comprising a step of reacting the silyl sodium compound obtained by synthesizing method of the silyl sodium compound with an epoxy compound to deoxidize the epoxy compound to stereoselectively produce an alkene compound. SELECTED DRAWING: Figure 1 COPYRIGHT: (C)2020,JPOandINPIT

Proximity enforced oxidative addition of a strong unpolar σ-Si-Si bond at rhodium(i)

The new bidentate bisphosphino ligand (5-Ph2P-Ace-6-SiMe2)2 (1) binds rhodium(i) chloride and brings it into close proximity to a strong unpolar σ-Si-Si bond, in which it immediately inserts. In the spirocyclic Rh(iii) product of the oxidative addition, (5-Ph2P-Ace-6-SiMe2)2RhCl (2), the two Si atoms are still close enough to engage in weak non-covalent interactions.

Method for continuously preparing disilane compounds by micro-reaction device

The invention discloses a method for continuously preparing disilane compounds by a micro-reaction device. The method comprises the following steps: (1) a solution A is prepared from organosilane by dissolving in a first organic solvent, or is organosilane; (2) a solution B is prepared from an oxidant by dissolving in a second organic solvent, or is an oxidant; (3) the solution A and the solutionB are pumped into a micro-mixer of the micro-reaction device simultaneously for mixing, a product then flows into a microreactor of the micro-reaction device for reaction, and the disilane compounds are prepared, wherein the microreactor is filled with a catalyst. Raw materials required in the method are easily available and have better stability, metal copper compounds are used as a catalyst forcoupling reaction on trisubstituted silanes, and the coupling effect on trisubstituted silanes is better than that of alkali metal catalysts and transition metal catalysts; a micro-channel reactor issuitable for an exothermic coupling reaction due to good mixing and heat transfer performance.

Reactions of molybdenum hydrides with organochlorosilanes: Silicon-silicon bond formation under mild conditions

Reactions of molybdenum hydrides containing polydentate phosphinoalkylsilyl ligands with a number of chlorosilanes have been investigated; this has led to the discovery of a novel type of a dechlorinative Si-Si coupling reaction.

PREPARATION OF SI-SI BOND-BEARING COMPOUNDS

Si—Si bond-bearing compounds are effectively prepared by irradiating with radiation or heating Si—H group-bearing silicon compounds in organic solvents in the presence of iron complex catalysts. The Si—Si bond-bearing compounds are useful as a base material in photoresist compositions, ceramic precursor compositions, and conductive compositions.

Direct construction of silicon-silicon bond by using the low-valent titanium reagent

The reductive dimerization or polymerization of organochlorosilanes has been achieved by using the low-valent titanium reducing agent other than the alkali metals that are invariable used in the Wurtz-type coupling reaction. Applying this method, the corresponding disilanes or poly(methylvinylsilane) was obtained in good yields. The poly(methylvinylsilane) synthesized by this method is highly pure with a high molecular weight and a narrow molecular weight distribution (Mw/Mn = 1.6, Mn = 16,860).

Carbanion mechanisms XXI. Solution acidity of triphenylsilane

Comparative acidity measurements have been performed between triphenylsilylpotassium and a series of arylmethanes by 1H-NMR in tetrahydrofuran: Ph3SiK + ArnCH4 - n ? Ph3SiH + ArnCH3 - nK Metalation of the arylmethane was complete in the case of Ph3CH (pKa 31.4) and Ph2CH2 (pKa 33.4) but with (p-CH3·C6H4)2CH2 (pKa 35.1) ～50% metalation of the di-p-tolymethane occurred, indicating that the two acids have equal pKa. No reaction occurred with 4-Ph·C6H4·CH3 (pKa 38.7). Thus pKa Ph3SiH ≈ 35.1 in THF. This represents the first solution measurement of the acidity of an organosilane.

Electroreductive Synthesis of Polysilanes, Polygermanes, and Related Polymers with Magnesium Electrodes

The electroreduction of alkylaryldichlorosilane carried out with Mg cathode and anode in a single compartment cell gave high molecular weight poly(alkylarylsilane) (Mn = 5200-31000, Mw/Mn = 1.4-1.8) in 5-79% yield. The effects of electrode material, monomer concentration, amount of supplied electricity, and ultrasound were investigated. This electroreductive method was also successfully applied to the synthesis of polygermanes, silane-geramane copolymers, and also poly[p-(disilanylene)phenylenes].