51276-65-4

Upstream product

• 775-12-2 diphenylsilane 
• 98-86-2 acetophenone 
• 17950-94-6 dideuteriodiphenylsilane 
• 100-42-5 styrene 

Downstream Products

• 1445-91-6 (S)-1-phenylethanol 
• 1517-69-7 (R)-1-phenylethanol 
• 98-85-1 1-Phenylethanol 

Relevant academic research and scientific papers

Enantioselective catalysis: Part 129. A new rhodium(I) complex with a μ2-H bridged Cp2WH2 ligand

The optically active complex {[(-)-diop]Rh(μ2-H)2WCp2}PF6 was prepared and characterized. In four different models of enantioselective catalysis the complex gave the same enantioselectivity as the catalysts [Rh(cod)Cl]2/(-)-diop and [Rh(cod)Cl]2/(-)-diop/Cp2WH2.

Synthesis of (C5H5)Fe(CO)(SiHPh2)2H, a catalytically active intermediate in the hydrosilylation of acetophenone by diphenylsilane

The well-known iron complex (η-C5H5)Fe(CO)2(CH3), 3, is an efficient catalyst for the hydrosilylation of acetophenone by diphenylsilane.During the reaction the new complex (C5H5)Fe(CO)(SiHPh2)2H, 6, is formed.This complex is a catalytically active interme

Novel carbonyliridium and -rhodium complexes containing 2,6-bis[(4′S)-4′-isopropyloxazolin-2′-yl]pyridine (iPr-pybox) and 2,6-Bis[(4′R)-4′-phenyloxazolin-2′-yl]pyridine (Ph-pybox) ligands

The iridium(I) complexes [Ir(CO)(κ3-N,N,N-R-pybox)] [PF6] [R-pybox = (S,S)-iPr-pybox (1), (R,R)-Ph-pybox (2)] have been prepared by reaction of their precursor complexes [Ir(η2-C 2H4)2(κsu

Efficient Hydrosilylation of Acetophenone with a New Anthraquinonic Amide-Based Iron Precatalyst

A new iron complex based on a noninnocent anthraquinonic ligand has been synthesized and fully characterized through multiple techniques, including NMR, X-ray crystallography, mass spectrometry, and cyclic voltammetry. Exposure of ketone to that complex i

Catalytic hydrosilylation of olefins and ketones by base metal complexes bearing a 2,2′:6′,2″-terpyridine ancillary ligand

The activities of [M(tpy)Br2] (M = Mn, Co, Ni, or Cu) for the hydrosilylation of olefins and ketones were investigated in the presence of NaBHEt3 as an activator. [Co(tpy)Br2] and [Ni(tpy)Br2] showed catalytic a

IMINOBIPYRIDINE COBALT COMPLEX, AND METHOD FOR PREPARING ORGANOSILICON COMPOUNDS BY HYDROSILYLATION REACTIONS UTILIZING IMINOBIPYRIDINE COBALT COMPLEX

PROBLEM TO BE SOLVED: To provide a metal complex which can be utilized as a catalyst for a hydrosilylation reaction of an olefin compound and a carbonyl compound. SOLUTION: There is provided an iminobipyridine cobalt complex represented by the formula (A)

Four-Coordinated Manganese(II) Disilyl Complexes for the Hydrosilylation of Aldehydes and Ketones with 1,1,3,3-Tetramethyldisiloxane

The coordinatively unsaturated manganase(II) bis(supersilyl) complex Mn[Si(SiMe3)3]2(THF)2 (2) was synthesized in one step via the reaction of MnBr2 with two equivalents of KSi(SiMe3)3 in THF. Complex 2 acts as an effective precatalyst for the catalytic hydrosilylation of aldehydes and ketones with 1,1,3,3-tetramethyldisiloxane (TMDS). The catalytic efficiency can be improved by combining 2 and adamantyl isocyanide (CNAd). The stoichiometric reaction of 2 and two equivalents of CNAd led to the isolation of Mn[Si(SiMe3)3]2(CNAd)2 (3) in high yield. Complex 3 shows superior catalytic performance than 2 in the hydrosilylation of relatively unreactive ketones.

Hydrosilylation of Carbonyl Compounds Catalyzed by a Nickel Complex Bearing a PBP Ligand

The efficient catalytic hydrosilylation of ketones and aldehydes has been investigated using a nickel pincer hydride complex supported by a diphosphino-boryl ligand (PBP). It was found that the presence of the boryl group within the skeleton of the ligand has a beneficial effect on the catalytic activities observed for ketones compared to related pincer systems. The analysis of the reaction mechanism allows for the synthesis and characterization of a nickel alkoxide derivative by insertion of the carbonyl moiety into the Ni?H bond. Combined experimental and theoretical analysis (DFT) support a reaction mechanism that involves the initial formation of an alkoxide complex followed by reaction with the silane to release the corresponding silyl ether and regenerate the catalyst.

First study of rhodium(I) complexes with chiral sulfur-containing terpenoids as catalytic systems for ketone hydrosilylation

Using a “chiral pool” approach, a number of chiral thiolate and sulfide ligands based on natural terpenes and terpenoids have been synthesized in a few simple steps. Two new Rh-thiolate complexes with the formula [Rh(CO)2(μ-SR)]2 were obtained. The influence of these complexes and catalytic systems formed by combining the synthesized ligands with [Rh(CO)2(μ-Cl)]2 and [Rh(cod)(μ-Cl)]2, on the reaction rate, chemoselectivity, stereoselectivity and formation of tetraphenyldisiloxane in Rh-catalyzed asymmetric hydrosilylation of acetophenone as a model reaction have been studied. Mechanistic aspects of formation of silyl enol ether as a side product in the presence of S-containing ligands are presented.

Bis(phosphine)hydridorhodacarborane Derivatives of 1,1′-Bis(ortho-carborane) and Their Catalysis of Alkene Isomerization and the Hydrosilylation of Acetophenone

Deprotonation of [7-(1′-closo-1′,2′-C2B10H11)-nido-7,8-C2B9H11]- and reaction with [Rh(PPh3)3Cl] results in isomerization of the metalated cage and the formation of [8-(1′-closo-1′,2′-C2B10H11)-2-H-2,2-(PPh3)2-closo-2,1,8-RhC2B9H10] (1). Similarly, deprotonation/metalation of [8′-(7-nido-7,8-C2B9H11)-2′-(p-cymene)-closo-2′,1′,8′-RuC2B9H10]- and [8′-(7-nido-7,8-C2B9H11)-2′-Cp*-closo-2′,1′,8′-CoC2B9H10]- affords [8-{8′-2′-(p-cymene)-closo-2′,1′,8′-RuC2B9H10}-2-H-2,2-(PPh3)2-closo-2,1,8-RhC2B9H10] (2) and [8-(8′-2′-Cp*-closo-2′,1′,8′-CoC2B9H10)-2-H-2,2-(PPh3)2-closo-2,1,8-RhC2B9H10] (3), respectively, as diastereoisomeric mixtures. The performances of compounds 1-3 as catalysts in the isomerization of 1-hexene and in the hydrosilylation of acetophenone are compared with those of the known single-cage species [3-H-3,3-(PPh3)2-closo-3,1,2-RhC2B9H11] (I) and [2-H-2,2-(PPh3)2-closo-2,1,12-RhC2B9H11] (V), the last two compounds also being the subjects of 103Rh NMR spectroscopic studies, the first such investigations of rhodacarboranes. In alkene isomerization all the 2,1,8-or 2,1,12-RhC2B9 species (1-3, V) outperform the 3,1,2-RhC2B9 compound I, while for hydrosilylation the single-cage compounds I and V are better catalysts than the double-cage species 1-3.