18407-46-0

Upstream product

• 64-17-5 ethanol 
• 18549-83-2 1,1,1,3,3,3-hexamethyl-2,2-diphenyltrisilane 
• 775-12-2 diphenylsilane 
• 141-78-6 ethyl acetate 
• 1631-83-0 diphenylsilyl chloride 
• 998-30-1 Triethoxysilane 
• 108-90-7 chlorobenzene 
• 75-07-0 acetaldehyde 
• 17950-94-6 dideuteriodiphenylsilane 
• 80-10-4 diphenylsilyl dichloride 
• 1825-62-3 ethyl trimethylsilyl ether 
• 108-86-1 bromobenzene 
• 60-29-7 diethyl ether 

Downstream Products

• 53668-80-7 Aethoxy-chlor-diphenyl-silan 
• 791815-06-0 bromo-ethoxy-diphenyl-silane 
• 65105-82-0 Butyl-ethoxy-diphenyl-silane 
• 17933-85-6 (ethoxy)diphenyl(vinyl)silane 

Relevant academic research and scientific papers

Mechanistic studies of photochemical silylene extrusion from 2,2- diphenylhexamethyltrisilane

Photophysics and photochemistry of 2,2-diphenylhexamethyltrisilane (1) was investigated in detail. Diphenyltrisilane 1 showed an intense fluorescence band assignable to the intramolecular charge-transfer (ICT) band in a polar solvent. Whereas silylene ext

Photoreaction via Non-Resonant Two-Photon Excitation. Selective Silylene Extrusion from 2,2-Diphenyltrisilane

Non-resonant two-photon excitation of 2,2-diphenylhexamethyltrisilane with a 532 nm pulsed laser light induced the two major reactions, silylene extrusion and migration of the β-trimethylsilyl group with a quite different selectivity from that for the single-photon excitation.

Self-Assembled Open Porous Nanoparticle Superstructures

Imparting porosity to inorganic nanoparticle assemblies to build up self-assembled open porous nanoparticle superstructures represents one of the most challenging issues and will reshape the property and application scope of traditional inorganic nanoparticle solids. Herein, we discovered how to engineer open pores into diverse ordered nanoparticle superstructures via their inclusion-induced assembly within 1D nanotubes, akin to the molecular host-guest complexation. The open porous structure of self-assembled composites is generated from nonclose-packing of nanoparticles in 1D confined space. Tuning the size ratios of the tube-to-nanoparticle enables the structural modulation of these porous nanoparticle superstructures, with symmetries such as C1, zigzag, C2, C4, and C5. Moreover, when the internal surface of the nanotubes is blocked by molecular additives, the nanoparticles would switch their assembly pathway and self-assemble on the external surface of the nanotubes without the formation of porous nanoparticle assemblies. We also show that the open porous nanoparticle superstructures can be ideal candidate for catalysis with accelerated reaction rates.

Gold(I) complexes with chloro(diaryl)silyl ligand. Stoichiometric reactions and catalysis for O-functionalization of organosilane

An Au(I) complex with a chloro(diphenyl)silyl ligand [Au(SiPh2Cl)(PCy3)] (1a) is obtained from the reaction of Ph2SiH2 with [AuCl(PCy3)]. (4-FC6H4)2SiH2, (4-MeC6H4)2SiH2, and Ph2GeH2 react with [AuCl(PCy3)] to form complexes with the chlorodiarylsilyl ligand, [Au(SiAr2Cl)(PCy3)] (1b: Ar = C6H4-4-F, 1c: Ar = C6H4-4-Me) and with the chloro(diphenyl)germyl ligand, [Au(GePh2Cl)(PCy3)] (2a), respectively. Complex 1a reacts with H2O to form Ph2SiH(OH) and (Ph2SiH)2O, whereas the reaction of EtOH with 1a yields Ph2SiH(OEt) exclusively. Complex 1a catalyzes the hydrolysis of Ph2SiH2 ([Au]:[H2SiPh2]:[H2O] = 0.05:1.0:10.0) at 60 °C to yield Ph2SiH(OH) and (Ph2SiH)2O. The reaction of Ph2SiH2 with HOEt in the presence of a catalytic amount of 1a affords Ph2SiH(OEt). Both stoichiometric and catalytic reactions using 1a lead to the recovery of [AuCl(PCy3)] from the reaction mixture.

Hydrosilane synthesis via catalytic hydrogenolysis of halosilanes using a metal-ligand bifunctional iridium catalyst

Hydrogenolysis of various halosilanes was catalysed by iridium amido complexes to produce hydrosilanes. Selective monohydrogenolysis of di- and trichlorosilanes similarly proceeded, resulting in the formation of chlorohydrosilanes (R2SiHCl or RSiHCl2) as synthetically important building blocks for various organosilicon compounds. A mechanistic study supported the in-situ formation of an iridium hydride species as a key intermediate, which could transfer the hydride to the silicon atom through a metal–ligand bifunctional mechanism. One-pot hydrotrimethylsilylation of olefins was achieved via successive hydrogenolysis and hydrosilylation reactions starting from Me3SiCl.

Synthesis of nitrogen and sulfur co-doped hierarchical porous carbons and metal-free oxidative coupling of silanes with alcohols

Hierarchically porous N and S co-doped carbon was prepared by using 2,5-dihydroxy-1,4-benzoquinone as the carbon source, thiourea as the N and S source, and SiO2 particles as the template. Using the material as the catalyst, oxidative coupling of silanes with alcohols was conducted for the first time under metal-free conditions.

Hydrosilylation of Aldehydes and Ketones Catalyzed by a Terminal Zinc Hydride Complex, [κ3-Tptm]ZnH

Tris(2-pyridylthio)methyl zinc hydride, [κ3-Tptm]ZnH, is an effective catalyst for multiple insertions of carbonyl groups into the Si-H bonds of PhxSiH4-x (x = 1, 2). Specifically, [κ3-Tptm]ZnH catalyzes the insertion of a variety of aldehydes and ketones into the Si-H bonds of PhSiH3 and Ph2SiH2 to afford PhSi[OCH(R)R′]3 and Ph2Si[OCH(R)R′]2, respectively. The mechanism for hydrosilylation is proposed to involve insertion of the carbonyl group into the Zn-H bond to afford an alkoxy species, followed by metathesis with the silane to release the alkoxysilane and regenerate the zinc hydride catalyst. Multiple insertion of prochiral ketones results in the formation of diastereomeric mixtures of alkoxysilanes that can be identified by NMR spectroscopy.

POP-pincer silyl complexes of group 9: Rhodium versus iridium

9,9-Dimethyl-4,5-bis(diisopropylphosphino)xanthene (xant(P iPr2)2) derivatives RhCl{xant(P iPr2)2} (1) and IrHCl{xant(PiPr 2)[iPrPCH(Me)CH2]} (2) react with diphenylsilane and triethylsilane to give the saturated d6-compounds RhHCl(SiR3){xant(PiPr2)2} (SiR 3 = SiHPh2 (3), SiEt3 (4)) and IrHCl(SiR 3){xant(PiPr2)2} (SiR3 = SiHPh2 (5), SiEt3 (6)). Complexes 3 and 5 undergo a Cl/H position exchange process via the MH{xant(PiPr2) 2} (M = Rh (8), Ir (E)) intermediates. The rhodium complex 3 affords the square planar d8-silyl derivative Rh(SiClPh2) {xant(PiPr2)2} (7), whereas the iridium derivative 5 gives IrH2(SiClPh2){xant(PiPr 2)2} (9), which is stable. In agreement with the formation of 7, the reactions of 8 with silanes are a general method to prepare square planar d8-rhodium-silyl derivatives. Thus, the addition of triethylsilane and triphenylsilane to 8 initially leads to the dihydrides RhH2(SiR3){xant(PiPr2)2} (SiR3 = SiEt3 (10), SiPh3 (11)), which lose molecular hydrogen to afford Rh(SiR3){xant(PiPr 2)2} (SiR3 = SiEt3 (12), SiPh 3 (13)). Treatment of 7 with NaBArF4· 2H2O leads to the cationic five-coordinate d6-species [RhH{Si(OH)Ph2}{xant(PiPr2)2}] BArF4 (14) through a silylene intermediate. According to the participation of the latter in the formation of 14, this cation is an efficient catalyst precursor for the monoalcoholysis of diphenylsilane with a wide range of alcohols, reaching turnover frequencies at 50% of conversion between 4000 and 76 500 h-1. The X-ray structures of 3, 6, 7, 9, 12, and 14 are also reported.

Synthesis of diethoxy(phenyl)silane and its polycondensation in acetic acid

Low-temperature reaction between phenylmagnesium chloride and triethoxysilane at lowered affords diethoxy(phenyl)silane, whose polycondensation in acetic acid gives oligomeric (phenyl)hydrosiloxanes.

Ruthenium carbonyl-catalysed Si-heteroatom X coupling (X = S, O, N)

Ru3(CO)12 has been shown to catalyse the coupling of silanes with thiols, alcohols and amines with turnover number (TON) and turnover frequency (TOF) of up to 200 and 50 h-1 at 80 °C. IR, NMR and mass spectroscopic studies have identified a ruthenium dimer complex, [Ru(CO)4(SiEt3)]2 as a likely resting state of the catalyst. A mechanism involving this complex has been proposed for the silicon-thiol coupling process.