Chiral Phosphoric Acid Diesters as Ligands in Asymmetric Transition Metal Catalyzed Hydrogenation
CHIMIA, 2003 A chiral phosphoric acid diester, specifically the BINOL-based derivative, has been used for the first time in Rh-, Ir-, and Pd-catalyzed hydrogenation of olefins and imines, giving ee-values of up to 85%.
Manfred T. Reetz +2 more
doaj +1 more source
Microchip electrophoresis bioanalytical applications [PDF]
, 2008 Microchip electrophoresis (MCE) is a novel analytical technique resulting from miniaturization of capillary electrophoresis (CE) to a planar microfabricated separation device.
Vlcková, Markéta
core +1 more source
Development of diverse adjustable axially chiral biphenyl ligands and catalysts
iScience, 2023 Summary: Development of highly efficient and practical chiral ligands and catalysts is an eternal theme in asymmetric synthesis. Here, we report the design, synthesis, and evaluation of a new kind of adjustable axially chiral biphenyl ligands and ...
Jiyang Jie +3 more
doaj +1 more source
Asymmetric Ion-Pairing Catalysis [PDF]
, 2014 Chemistry and Chemical ...
Brak, Katrien, Jacobsen, Eric N.
core +1 more source
A Practical Guide for Predicting the Stereochemistry of Bifunctional Phosphoric Acid Catalyzed Reactions of Imines. [PDF]
, 2016 Chiral phosphoric acids have become powerful catalysts for the stereocontrolled synthesis of a diverse array of organic compounds. Since the initial report, the development of phosphoric acids as catalysts has been rapid, demonstrating the tremendous ...
Goodman, Jonathan M +2 more
core +2 more sources
Donor–Acceptor Pentacene Analogues With Near‐Infrared Emission and Tunable Aromaticity
Angewandte Chemie, EarlyView.Air‐ and photostable heterocyclic pentacene analogues with donor and acceptor groups flanking a para‐quinodimethane core exhibit large dipole moments, narrow bandgaps, reversible redox behavior, and NIR‐I to NIR‐II absorption and emission with pronounced solvatochromism.
Krzysztof Nowak +6 more
wiley +2 more sources
Catalytic Asymmetric Transfer Hydrogenation of Imines: Recent Advances [PDF]
, 2015 In this review article recent developments in the asymmetric transfer hydrogenation of imines from 2008 up to today are presented. The main methodology involves either metal-catalyzed procedures in the presence of a chiral ligand or organocatalyzed ...
Foubelo, Francisco, Yus, Miguel
core +2 more sources
Chiral Bronsted Acid-Catalyzed Enantioselective alpha-Amidoalkylation Reactions: A Joint Experimental and Predictive Study, [PDF]
, 2016 Enamides with a free NH group have been evaluated as nucleophiles in chiral Bronsted acid-catalyzed enantioselective alpha-amidoalkylation reactions of bicyclic hydroxylactams for the generation of quaternary stereocenters.
Aranzamendi Uruburu, Eider +4 more
core +3 more sources
Angewandte Chemie, EarlyView.The use of transition‐metal catalysts and design of chiral ligands have allowed chemists to access highly functionalized benzofused 5‐ and 6‐ membered rings in high yield and enantioselectivity. A common strategy used relies on an intermolecular carbometalation across alkynes and olefins, usually followed by a subsequent intramolecular carbometalation.
Clara Jans +3 more
wiley +2 more sources
Rational design of a (S)-selective-transaminase for asymmetric synthesis of (1S)-1-(1,1′-biphenyl-2-yl)ethanamine [PDF]
, 2016 Amine transaminases offer an environmentally sustainable synthesis route for the production of pure chiral amines. However, their catalytic efficiency toward bulky ketone substrates is greatly limited by steric hindrance and therefore presents a great ...
Allen, Christopher C.R. +12 more
core +3 more sources