Results 121 to 130 of about 4,646,169 (243)
Angewandte Chemie, Volume 138, Issue 42, 12 October 2026.The cobalt(II) bis(trifluoroacetylcamphorate) scaffold exhibits versatile coordination chemistry with solvent‐driven ligand exchange and geometrical rearrangements, associated with unique chiroptical properties. Microcrystalline suspension of [Co(tfc)2(CH3CN)2] revealed the largest VCD dissymmetry factor ever reported (g ≈ 0.2 at 1600 cm−1), arising ...
Gianmarco Papi +4 more
wiley +2 more sources
Chiral Pyrazolinylidene Complexes for Asymmetric Catalysis
Chemistry – A European Journal, Volume 32, Issue 39, 22 October 2026.The synthesis and application of pyrazolin‐5‐ylidene NHC chiral‐at‐ruthenium catalysts is reported. The strong donating pyrazolin‐5‐ylidene ligands led to highly electron rich ruthenium complexes, which showed excellent catalytic activity and enantioselectivity in the intramolecular aziridination of an alkene.
Felix Möller +6 more
wiley +1 more source
Enantioselective potential of sulfobutylether-β-cyclodextrin based chiral stationary phase [PDF]
, 2018 The aim of this diploma thesis was to prepare two new chiral stationary phases by dynamic coating of sulphobutylether-β-cyclodextrin (SBE-β-CD) with varying degrees of substitution onto strong anion-exchange stationary phases.
Folprechtová, Denisa
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Angewandte Chemie, Volume 138, Issue 42, 12 October 2026.The first nitrile reductive couplings beyond stoichiometric metals or metalloids are described. Using a ruthenium catalyst derived from RuHCl(CO)(PPh3)3 and Cy‐BIPHEP, 2‐propanol‐mediated reductive coupling of phenyl acrylate with aromatic or aliphatic nitriles delivers α,β‐unsaturated β‐amino esters.
Sebastian Höthker +3 more
wiley +2 more sources
Chemistry – A European Journal, Volume 32, Issue 39, 22 October 2026.Enantioenriched α‐substituted primary amines are efficiently prepared by rhodium‐catalyzed asymmetric transfer hydrogenation of ortho‐hydroxyaryl N─H imines under mild conditions using a low catalyst loading and ammonium formate as the hydrogen source in high yields (up to 99%) and enantioselectivities (up to 99% ee).
Chonghuo Liu +4 more
wiley +1 more source
Resolution Approaches Toward Enantiopure Planar Chiral 7‐bromo‐4‐hydroxy [2.2]paracyclophane
European Journal of Organic Chemistry, Volume 29, Issue 39, 22 October 2026.This work describes access to both enantiomers of planar chiral 7‐bromo‐4‐hydroxy [2.2]paracyclophane through direct resolution of the racemate using an L‐isoleucine‐derived chiral auxiliary or through resolution of 4‐hydroxy [2.2]paracyclophane, followed by regioselective bromination.
Arthur Le Coz +5 more
wiley +1 more source
Enhancement of Dissymmetry Factors Through Axial Elongation of Hetero[n]helicenes
Angewandte Chemie, Volume 138, Issue 41, 5 October 2026.A benzofuran scaffolding strategy enables the synthesis of hetero[9]‐, [12]‐, and [15]helicenes. Structural and chiroptical analyses demonstrate that systematic axial elongation increases helical distortion and significantly amplifies luminescence dissymmetry.
Jeppe S. Mogensen +7 more
wiley +2 more sources
Chiral stationary phase chromatography (in French) [PDF]
Analusis, 1998 A. M. Siouffi, C. Roussel
openaire +1 more source
Scaffold Hopping Provides Liver X Receptor Agonist With Preference for the β Subtype
ChemMedChem, Volume 21, Issue 19, 14 October 2026.A scaffold hopping strategy was pursued to enhance the binding pocket engagement and β‐subtype selectivity of liver X receptor agonist 2. The resulting spirocyclic lead compound, (S)‐7, demonstrates superior potency, enhanced potency‐based selectivity for LXRβ, and improved microsomal stability over the existing scaffold.
Annette Kärcher +5 more
wiley +1 more source
, 2004 In this research, the enantioselective LC analysis of adrenergic amines of natural origin on a protein-based chiral stationary phase was carried ...
BENVENUTI, Stefania +2 more
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