15915-93-2

Upstream product

• 106-38-7 para-bromotoluene 
• 18056-92-3 diethoxy(di-4-methylphenyl)silane 
• 931-70-4 (4-methylphenyl)silane 
• 3724-36-5 (4-chlorophenyl)silane 
• 13272-84-9 (4-fluorophenyl)silane 
• 18414-38-5 di(p-tolyl)dichlorosilane 

Downstream Products

• 423120-82-5 [Ru(CO)2(Si(p-tol)2H)2]2(μ-bis(diphenylphosphino)methane)(μ-η2:η2-H2Si(p-tol)2) 
• 192313-13-6 RhH(SiH(C₆H₄-p-Me)2)(SPh)(PMe₃)3 
• 423120-80-3 [Ru2(CO)6(μ-dppm)(μ-SiTol2)] 
• 423120-81-4 Ru2(CO)5(SiTol2H)(μ-dppm)(μ-η2-SiTol2H) 
• 219789-51-2 mer-[RhH(SC₆H₄OMe-p)(SiH(C₆H₄Me-p)2)(PMe₃)3] 
• 170379-19-8 (η(5)-C5Me5)Fe2(CO)4(μ-Si-p-TolH)(μ-PPh2) 

Relevant academic research and scientific papers

Hypervalent hydridosilicates: Synthesis, structure and hydride bridging

A range of hydridosilicate anions has been prepared and characterised by spectroscopic, structural and computational methods. The general approach involved reaction of KH with a neutral silane precursor in the presence of [18]crown-6. In this manner, [K([

Novel aryl-substituted silanes Part II: Synthesis and characterization of diaryl silicon dihydrides

A series of novel and previously published silicon dihydrides, R2SiH2 (R = benzyl, fluorenyl, p-tolyl, p-n-butyl, p-biphenyl, m-tolyl, o-tolyl, 2,4-xylyl, 2,6-xylyl, p-biphenyl, 1-naphthyl, 9-anthracenyl), were synthesized and characterized using 1/

Ruthenium Complex-catalysed Selective Redistribution Reaction of Aryltrihydrosilanes and Desilanative Polymerization of Bis(trihydrosilyl)benzenes

Ruthenium complexes catalyse desilanative condensation of bis(trihydrosilyl)benzenes to give polys, a new class of organic-inorganic hybrid polymers that allow numerous transformations.

Selective homo- And cross-desilacoupling of aryl and benzyl primary silanes catalyzed by a barium complex

Under mild conditions (25 °C, 5 mol% cat.), highly selective homo- and cross-desilacoupling of aryl and benzyl primary silanes to secondary silanes was achieved by the use of the heteroleptic barium aminobenzyl complex [(TpAd,iPr)Ba(CH2C6H4NMe2-o)] (TpAd,iPr = hydrotris(3-adamantyl-5-isopropyl-pyrazolyl)borate) (1) as a catalyst. Dihydrosilanes originating from catalytic redistribution and cross-desilacoupling reactions were isolated in fine yields, which demonstrates the feasible application of the barium complex in the syntheses of secondary aryl- and benzylsilanes. This journal is

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.

Divalent Ytterbium Complex-Catalyzed Homo- and Cross-Coupling of Primary Arylsilanes

Redistribution of primary silanes through C-Si and Si-H bond cleavage and reformation provides a straightforward synthesis of secondary silanes, but the poor selectivity and low efficiency severely hinders the application of this synthetic protocol. Here, we show that a newly synthesized divalent ytterbium alkyl complex exhibits unprecedentedly high catalytic activity toward the selective redistribution of primary arylsilanes to secondary arylsilanes. More significantly, this complex also effectively catalyzes the cross-coupling between electron-withdrawing substituted primary arylsilanes and electron-donating substituted primary arylsilanes to secondary arylsilanes containing two different aryls. DFT calculation indicates that the reaction always involve the exothermic formation of a hypervalent silicon upon facile addition of PhSiH3 to the Yb-E (E = C, H) bond. This hypervalent compound can easily either generate directly the Yb-Ph complex, or indirectly through the formation of Yb-H, that is the key complex for the formation of Ph2SiH2.

Highly selective redistribution of primary arylsilanes to secondary arylsilanes catalyzed by Ln(CH2C6H4NMe2-: O)3@SBA-15

Rare-earth metal tris(aminobenzyl) complexes Ln(CH2C6H4NMe2-o)3 (Ln = La, Y) were grafted onto the dehydroxylated periodic mesoporous silica support SBA-15 to generate the organometallic-inorganic hybrid materials Ln(CH2C6H4NMe2-o)3@SBA-15 (Ln = La (2a), Y (2b)), which demonstrated extremely high selectivity (>99%) in catalyzing the redistribution of primary arylsilanes to secondary arylsilanes without the requisition of strict control of the reaction conditions. The hybrid materials still showed a perfect selectivity and activity after three catalytic cycles.

Triangular Triplatinum Complex with Four Bridging Si Ligands: Dynamic Behavior of the Molecule and Catalysis

A triangular triplatinum(0) complex with bridging diphenylsilylene ligands, [{(Pt(PMe3)}3(μ-SiPh2)3] (1a), reacts with H2SiPh2 to produce the 1:1 adduct, [{Pt(PMe3)}3(

Efficient synthesis of substituted diarylsilanes

A highly efficient synthesis of substituted diarylsilanes is presented. The treatment of substituted arylbromides with tert-bu-tyllithium in diethyl ether at -78 °C, followed by the addition to dichlorodiethoxysilane at the same temperature, leads to the quantitative formation of diaryldiethoxysilane. Selective substitution of the chlorine atoms allows an aqueous work up in air. Subsequently, the diaryldiethoxysilane is reduced to the corresponding diarylsi-lane by stirring with lithium aluminum hydride in diethyl ether. The product is purified by bulb-to-bulb distillation. This method does not lead to any mono- or tri-substituted products and avoids handling gaseous and explosive dichlorosilane, which is a significant advantage over previously reported procedures. Georg Thieme Verlag Stuttgart.

Reaction of silylpentacarbonylmanganese with hydride-transfer reagents: Reduction of carbonyl ligands accompanied with Si-C and C-C coupling

Treatment of Mn(CO)5SiTolp2H (2) with an excess of LiAlH4, NaBH4, or NaBH3(CN) in THF at room temperature gave hydrosilane H-SiTolp2H in high yield together with Mn2(CO)10. No reduction of CO ligands was observed. On the other hand, treatment of 2 with an excess of Red-Al ( = with LiAlH4 in diethyl ether instead of hydrolysis gave alkylhydrosilanes (CH3)SiTolp2H and (C2H5)SiTolp2H. The methyl and ethyl groups on silicon originate from the CO ligands in 2. These products clearly demonstrate that not only the Si-C coupling, but also C-C coupling occurs efficiently in this reaction.