Asymmetric Transfer Hydrogenation
Asymmetric transfer hydrogenation by synthetic catalysts in cancer cells
... active transfer hydrogenation catalysts that out-perform ruthenium analogues under similar conditions, but also as cancer-cell-selective asymmetric catalysts with novel mechanisms of anticancer ...
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The Application of New Chiral Ferrocene Ligands in Asymmetric Transfer Hydrogenation of Ketones
... Four easily available ferrocenyl chiral ligands have been screened firstly for ruthenium (II)-catalyzed asymmetric transfer hydrogenation of acetophenone with HCOOH/Et 3 N azeotrope as[r] ...
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Asymmetric transfer hydrogenation reductions using tethered ruthenium (II) catalysts
... pressure hydrogenation of quinolines have been published, but very little research has been carried out on the transfer hydrogenation of quinolines (Section ...whether asymmetric ...
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N Functionalised TsDPEN catalysts for asymmetric transfer hydrogenation; synthesis and applications
... Address: Department of Chemistry, The University of Warwick, Coventry, CV4 7AL, UK. Email: [email protected] Abstract: A series of Ru(II)/arene complexes containing N-alkylated derivatives of TsDPEN were prepared and ...
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Mechanistic Complexity of Asymmetric Transfer Hydrogenation with Simple Mn–Diamine Catalysts
... TOF 0 obtained with acetophenone reduction at 60 °C with 1 mol % 1- Cis. ■ CONCLUSION In conclusion, we have synthesized and characterized a series of simple chiral manganese −diamine complexes which were evaluated for ...
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Asymmetric Transfer Hydrogenation of Ketones Catalyzed by Chiral Multidentate Aminophosphine Ligands/Iron Cluster
... After optimizing the reaction conditions, we applied the catalytic system to the ATH of various aromatic ketones, obtaining the corresponding optical active alcohols with high enantioselectivities (up to 96% ee). ...
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Ether tethered Ru(ii)/TsDPEN complexes : synthesis and applications to asymmetric transfer hydrogenation
... Received (in XXX, XXX) Xth XXXXXXXXX 20XX, Accepted Xth XXXXXXXXX 20XX DOI: 10.1039/b000000x 5 A new type of Ru(II)/TsDPEN catalyst containing an ether-based linking tether has been prepared and shown to exhibit ...
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Application of ruthenium complexes of triazole containing tridentate ligands to asymmetric transfer hydrogenation of ketones
... Email Address: [email protected] Received Date (will be automatically inserted after manuscript is accepted) ABSTRACT The synthesis of a series of tridentate ligands based on a homochiral 1,2-diamine structure ...
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The importance of the N–H bond in Ru/TsDPEN complexes for asymmetric transfer hydrogenation of ketones and imines
... for asymmetric transfer hydrogenation of ketones and imines; this observation provides direct evidence for the importance of the N-H interaction in the transition state for ketone ...
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Use of triazole ring formation to attach a Ru/TsDPEN complex for asymmetric transfer hydrogenation to a soluble polymer
... of asymmetric transfer hydrogenation (ATH) catalysts based on the ‘Ru(II)/TsDPEN’ system have been reported and successfully applied to the enantioselective reduction of ketones to ...
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Synthesis of Allylic Amines by Asymmetric Transfer Hydrogenation of α,β-Unsaturated N-(tert-Butylsulfinyl)imines
... amine; asymmetric transfer hydrogenation; ATH; N-sulfinylimine; ruthenium catalyst; isopropyl ...their asymmetric synthesis. Among them, we can find: (a) partial hydrogenation of ...
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Spectrometric elucidation of intermediates in asymmetric transfer hydrogenation of ketones catalyzed by complex of ruthenium (II) and isosorbide-based ligand
... the asymmetric transfer hydrogenation of acetophenone confirmed an involvement of the active complex mono-hydride ruthenium in the catalytic ...
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Preparation of Mesoporous Silica-Supported Chiral Amino Alcohols for the Enantioselective Addition of Diethylzinc to Aldehyde and Asymmetric Transfer Hydrogenation to Ketones
... the asymmetric addition of diethylzinc reagent to aldehydes and asymmetric transfer hydrogenation of ...the asymmetric catalysis is underway in our ...
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Water-soluble arene ruthenium catalysts containing sulfonated diamine ligands for asymmetric transfer hydrogenation of α-aryl ketones and imines in aqueous solution
... the transfer hydrogenation of ketones and imines in organic solvents is a powerful tool for asymmetric synthesis which was pioneered by Noyori, 5–7 Morris, 8 Bullock 9 and ...with asymmetric ...
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Asymmetric Transfer Hydrogenation of Secondary Allylic Alcohols
... One: Transfer Hydrogenation Reactions 1.1: Introduction Hydrogenation is a process by which hydrogen atoms are added to an unsaturated organic compound, usually in the presence of a metal ...usable ...
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Recent developments in the area of asymmetric transfer hydrogenation
... for asymmetric reduction. With a view to extending the transfer hydrogenation methodology to a variety of substrates we have studied the reductions of a series of α-heteroatom substituted ketones ...
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Easy to synthesize, robust organo osmium asymmetric transfer hydrogenation catalysts
... Upon treatment with base in the course of a catalytic appli- cation, Ru pre-catalyst 1 eliminates HCl, forming the active 16- electron amido complex 2. During the reduction, the catalyst cycles between 2 which contains a ...
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Asymmetric Transfer Hydrogenation in Water with Platinum Group Metal Catalysts3-19
... hydrogen transfer from Ru to ketone, probably with a transition state similar to that proposed by Noyori for non-aqueous media (19) (S Scch he em me e V ...
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Application of proline functionalised 1,2 diphenylethane 1,2 diamine (DPEN) in asymmetric transfer hydrogenation of ketones
... Four ligands have been developed for the asymmetric transfer hydrogenations of ketones. These ligands show a good level of activity when the reaction is performed in water with sodium formate as the ...
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Imino transfer hydrogenation reductions
... Imino Transfer Hydrogenation ...the transfer hydrogenation of C=N bonds, with a particularly focus on reports from within the last 10 years and asymmetric ...of asymmetric ...
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