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Hydrosilylation

Distribution by Scientific Domains
Chemistry85%
Polymers and Materials Science13%
Distribution within Chemistry
Organic Chemistry75%
General & Introductory Chemistry11%
4 Other Subdomains14%

Kinds of Hydrosilylation

  • asymmetric hydrosilylation
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  • catalytic hydrosilylation
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  • enantioselective hydrosilylation
    		•

    Terms modified by Hydrosilylation

  • hydrosilylation reaction
    		•

    Selected Abstracts

    Stable Platinum(0) Catalysts for Catalytic Hydrosilylation of Styrene and Synthesis of [Pt(Ar-bian)(,2 -alkene)] Complexes

    EUROPEAN JOURNAL OF INORGANIC CHEMISTRY, Issue 20 2003
    Jeroen W. Sprengers
    Abstract The use of alkenes and bidentate N-ligands in the platinum(0)-catalyzed hydrosilylation of styrene with triethylsilane has been evaluated. A number of bidentate N-ligands, phen, bpy, dafo, and phenyl-bian, were tested at various reaction temperatures using in situ formed catalysts with [Pt(nbe)3] as a precursor. The main conclusions are: (i) ligands, such as phen, which form stable platinum(0) complexes, give lower catalytic activities compared to the ligands which form less stable complexes; (ii) a small ligand effect is observed with dafo and phenyl-bian compared to [Pt(nbe)3], the precursor complex, displaying the lability of these ligands. The complex [Pt(nbe)3], that only has labile alkene ligands, is an active catalyst at low temperatures. At higher temperatures, the catalyst is no longer stable and a decrease in yield is observed. Several novel complexes have been synthesized: [Pt(m,m -(CF3)2 -C6H3 -bian)(tcne)], [Pt(m,m -(CF3)2 -C6H3 -bian)(ma)], [Pt(p -MeO-C6H4 -bian)(ma)], [Pt(p -MeO-C6H4 -bian)(dmfu)] and [Pt(phenyl-bian)(dmfu)]. Whereas the two [Pt(Ar-bian)(ma)] complexes are intrinsically more active than the two [Pt(Ar-bian)(dmfu)] complexes, the latter are much more stable, i.e. the nature of the alkene in these complexes is an important factor in determining their catalytic behavior. Compared to [Pt(Me-nq)(nbe)2], the two [Pt(Ar-bian)(dmfu)] complexes are much more stable resulting in significantly higher overall yields. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003) [source]

    The First General, Highly Enantioselective Lewis Base Organo- catalyzed Hydrosilylation of Benzoxazinones and Quinoxalinones

    ADVANCED SYNTHESIS & CATALYSIS (PREVIOUSLY: JOURNAL FUER PRAKTISCHE CHEMIE), Issue 13 2010
    Zhou-Yang Xue
    Abstract The first general, highly enantioselective hydrosilylation of benzoxazinones and quinoxalinones has been developed. The chiral Lewis base organocatalysts that are readily accessible from (1S,2R)-ephedrine and (1R,2S)-ephedrine promoted the title reaction to afford various chiral dihydrobenzoxazinones and dihydroquinoxalinones with good yields as well as good enantioselectivities. [source]

    A Novel D2 -Symmetrical Chiral Tetraoxazoline Ligand for Highly Enantioselective Hydrosilylation of Aromatic Ketones

    ADVANCED SYNTHESIS & CATALYSIS (PREVIOUSLY: JOURNAL FUER PRAKTISCHE CHEMIE), Issue 7 2010
    Wei Jie Li
    Abstract A novel D2 -symmetrical chiral tetraoxazoline ligand was synthesized from 1,2,4,5-benzenetetracarboxylic acid and L -valinol via a one-pot reaction, and the asymmetric hydrosilylation of aromatic ketones was carried out in dichloromethane in the presence of 1.0,mol% of a bivalent copper ion catalyst with the tetraoxazoline to give optically active secondary alcohols. The chiral catalyst showed excellent activities and enantioselectivities in the hydrosilylation of aryl ketones with up to 99% ee. [source]

    A Convenient and Efficient Rhenium-Catalyzed Hydrosilylation of Ketones and Aldehydes

    ADVANCED SYNTHESIS & CATALYSIS (PREVIOUSLY: JOURNAL FUER PRAKTISCHE CHEMIE), Issue 11-12 2009
    Hailin Dong
    Abstract The easily available rhenium(I) complex [Re(CH3CN)3Br2(NO)] catalyzes the homogeneous hydrosilylation of a great variety of organic carbonyl compounds (ketones and aldehydes). The reaction is quite sensitive to the solvent applied. Chlorobenzene was found to be superior over all the other solvents used. Various aliphatic and aromatic silanes were tested. Excellent yields were achieved at 85,°C in chlorobenzene using triethylsilane, the reaction affording TOF values of up to 495,h,1. A possible reaction mechanism for the hydrosilylation is presented. [source]

    Hydrosilylation of Ketone and Imine over Poly-N-Heterocyclic Carbene Particles

    ADVANCED SYNTHESIS & CATALYSIS (PREVIOUSLY: JOURNAL FUER PRAKTISCHE CHEMIE), Issue 9 2009
    MeiXuan Tan
    Abstract N-Heterocyclic carbene (NHC)-catalyzed ketone/imine hydrosilylation, silane alcohol condensation and asymmetric ketone hydrosilylation reactions were demonstrated for the first time over solid, main-chain poly-NHC particles. The stable and robust poly-NHC particles were easily recovered, and exhibited good catalytic recyclability. A novel chiral induction protocol with a cheap and easily accessible secondary alcohol as the chiral source was also developed in this catalytic system. [source]

    Convenient Enantioselective Hydrosilylation of Ketones Catalyzed by Zinc-Macrocyclic Oligoamine Complexes

    ADVANCED SYNTHESIS & CATALYSIS (PREVIOUSLY: JOURNAL FUER PRAKTISCHE CHEMIE), Issue 7-8 2009
    Jadwiga Gajewy
    Abstract Chiral macrocyclic tetra- and hexamine macrocycles derived from trans -1,2-diaminocyclohexane (DACH) in complexes with diethylzinc efficiently catalyze the asymmetric hydrosilylation of aryl alkyl ketones with enantiomeric excess of the product up to 89%. The cyclic structure of the trianglamine ligand increases the enantioselectivity of the reaction, in comparison to the catalysis with the acyclic N,N, -dibenzyl-DACH ligand. Density functional theory (DFT) computations on the structures of ligand-zinc complexes and on the structures of these complexes with a coordinated acetophenone molecule allow us to rationalize the direction of the asymmetric induction of the hydrosilylation reaction as well as the superiority of the cyclic ligand compared to the acyclic one. This is the first example of asymmetric catalysis for the hydrosilylation reaction of ketones with the use of a readily available, inexpensive, and reusable macrocyclic trianglamine ligand. [source]

    Stereodivergent Formation of Alkenylsilanes: syn or anti Hydrosilylation of Alkynes Catalyzed by a Cyclopentadienylcobalt(I) Chelate Bearing a Pendant Phosphane Tether

    ADVANCED SYNTHESIS & CATALYSIS (PREVIOUSLY: JOURNAL FUER PRAKTISCHE CHEMIE), Issue 7-8 2006
    Li Yong
    Abstract The hydrosilylation of alkynes is catalyzed by the di- tert -butylphosphanylethylcyclopentadienylcobalt chelate 1. While the reaction of internal alkynes exclusively affords syn hydrosilylation products with triethylsilane, the reaction with triethoxysilane shows predominant anti stereoselectivity. Reactions of terminal alkynes are less selective with triethylsilane and result in cyclotrimerization when triethoxysilane is used. [source]

    Fluorous Phosphine-Assisted Recycling of Gold Catalysts for Hydrosilylation of Aldehydes

    MOLECULAR INFORMATICS, Issue 8-9 2006
    Diána Lantos
    Abstract The facile recycling of gold hydrosilylation catalyst was achieved by using fluorous phosphine-modified gold complexes and/or nanoparticles. [source]

    Control of stereochemical structures of silicon-containing polymeric systems,

    POLYMER INTERNATIONAL, Issue 3 2009
    Yusuke Kawakami
    Abstract Various optically active silicon compounds have been synthesized or separated, and used to synthesize silicon-containing polymers with well-controlled stereochemical structures. Hydrosilylation, anionic ring-opening polymerization and cross-coupling reactions have been used to synthesize optically active and/or stereoregular silicon-containing polymers. Copyright © 2009 Society of Chemical Industry [source]

    Chemoselective Catalytic Hydrosilylation of Nitriles,

    ANGEWANDTE CHEMIE, Issue 41 2010
    Dipl.-Chem.
    Löbliches Verhalten: Der Ruthenium-Komplex [Cp(iPr3P)Ru(NCCH3)2]+ (Cp=Cyclopentadienyl) katalysiert die Monohydrosilylierung von Nitrilen (siehe Schema) und toleriert dabei fast jede Art von funktioneller Gruppe. Der Katalysator wird aus einfachen, kommerziell erhältlichen Verbindungen synthetisiert, ist luftstabil und wiederverwendbar und arbeitet unter lösungsmittelfreien Bedingungen. [source]

    Copper-Catalyzed Hydrosilylation with a Bowl-Shaped Phosphane Ligand: Preferential Reduction of a Bulky Ketone in the Presence of an Aldehyde,

    ANGEWANDTE CHEMIE, Issue 8 2010
    Tetsuaki Fujihara Prof.
    Sperriges zuerst: Ein hoch aktiver Kupferkatalysator mit einem schalenförmigen Phosphanliganden (bsp) vermittelt eine bislang einzigartige Reaktion: die Hydrosilylierung von sperrigen Ketonen in Gegenwart eines ungeschützten Aldehyds. [source]

    ChemInform Abstract: Copper-Catalyzed Hydrosilylation with a Bowl-Shaped Phosphane Ligand: Preferential Reduction of a Bulky Ketone in the Presence of an Aldehyde.

    CHEMINFORM, Issue 26 2010
    Tetsuaki Fujihara
    Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source]

    ChemInform Abstract: Synthesis and Application of Bulky Phosphoramidites: Highly Effective Monophosphorus Ligands for Asymmetric Hydrosilylation of Styrenes.

    CHEMINFORM, Issue 10 2010
    Feng Zhang
    Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source]

    ChemInform Abstract: A Convenient and Efficient Rhenium-Catalyzed Hydrosilylation of Ketones and Aldehydes

    CHEMINFORM, Issue 1 2010
    Hailin Dong
    Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source]

    ChemInform Abstract: One-Pot Hydrosilylation,RCM,Protodesilylation: Application to the Synthesis of ,-Alkenyl ,,,-Unsaturated Lactones.

    CHEMINFORM, Issue 29 2009
    Cyril Bressy
    Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source]

    ChemInform Abstract: Catalytic Hydrosilylation of Carbonyl Compounds with Zinc(II) Acetate: Asymmetric Induction Collaborated with N2S2 Ligands.

    CHEMINFORM, Issue 22 2009
    Tomohiko Inagaki
    Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source]

    ChemInform Abstract: Development of Highly Enantioselective New Lewis Basic N-Formamide Organocatalysts for Hydrosilylation of Imines with an Unprecedented Substrate Profile.

    CHEMINFORM, Issue 16 2009
    Pengcheng Wu
    Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source]

    ChemInform Abstract: One-Pot Hydrosilylation,Protodesilylation of Functionalized Diarylalkynes: A Highly Selective Access to (Z)-Stilbenes.

    CHEMINFORM, Issue 25 2008
    Application to the Synthesis of Combretastatin A-4.
    Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source]

    ChemInform Abstract: Enantioselective Hydrosilylation of Ketimines with Trichlorosilane Promoted by Chiral N-Picolinoyl Amino Alcohols.

    CHEMINFORM, Issue 9 2008
    Hongjie Zheng
    Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source]

    From Inconsistent Results to High Speed Hydrosilylation.

    CHEMINFORM, Issue 25 2007
    Virginie Comte
    Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF. [source]

    Highly Regioselective Rhenium-Catalyzed Hydrosilylation of Styrenes.

    CHEMINFORM, Issue 15 2007
    Wen-Guo Zhao
    Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF. [source]

    Synthesis of New Bulky Isocyanide Ligands and Their Use for Rh-Catalyzed Hydrosilylation.

    CHEMINFORM, Issue 4 2007
    Hajime Ito
    Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF. [source]

    Zinc-Catalyzed Enantioselective Hydrosilylation of Imines.

    CHEMINFORM, Issue 44 2006
    Bu-Mahn Park
    Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF. [source]

    A Bis(phosphinimino)methanide Lanthanum Amide as Catalyst for the Hydroamination/Cyclization, Hydrosilylation and Sequential Hydroamination/Hydrosilylation Catalysis.

    CHEMINFORM, Issue 26 2006
    Marcus Rastaetter
    Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF. [source]

    [MoO2Cl2] as Catalyst for Hydrosilylation of Aldehydes and Ketones.

    CHEMINFORM, Issue 21 2005
    Ana C. Fernandes
    Abstract For Abstract see ChemInform Abstract in Full Text. [source]

    Regioselective Hydrosilylation of Terminal Acetylenes via Acetylene,Co2(CO)4dppm Complex: Effects of the Ligands in Acetylenedicobalt Complex.

    CHEMINFORM, Issue 19 2005
    Shingo Tojo
    Abstract For Abstract see ChemInform Abstract in Full Text. [source]

    Asymmetric Hydrosilylation of Alkenes with Alkoxyhydrosilanes Catalyzed by Chiral Bis(oxazolinyl)phenyl,Rhodium Complex.

    CHEMINFORM, Issue 8 2005
    Yasunori Tsuchiya
    Abstract For Abstract see ChemInform Abstract in Full Text. [source]

    Rhodium-Catalyzed Asymmetric 1,4-Addition of Alkenylsilanes Generated by Hydrosilylation of Alkynes: A One-Pot Procedure Where a Rhodium/(S)-Binap Complex Catalyzes the Two Successive Reactions.

    CHEMINFORM, Issue 3 2005
    Yusuke Otomaru
    Abstract For Abstract see ChemInform Abstract in Full Text. [source]

    Use of Diamines Containing the ,-Phenylethyl Group as Chiral Ligands in the Asymmetric Hydrosilylation of Prochiral Ketones.

    CHEMINFORM, Issue 23 2004
    Virginia M. Mastranzo
    Abstract For Abstract see ChemInform Abstract in Full Text. [source]

    Hydrosilylation of 2-(2-Propynyl)-2,3-dihydro-1,2-benzothiazol-3-one 1,1-Dioxide with 1-Alkynyl(dimethyl)- and Bis(1-alkynyl)methylsilanes.

    CHEMINFORM, Issue 19 2004
    G. S. Lyashenko
    Abstract For Abstract see ChemInform Abstract in Full Text. [source]