Results 41 to 50 of about 3,249 (212)

Effect of molecular rotation on enantioseparation [PDF]

open access: yesThe Journal of Chemical Physics, 2012
Recently, several laser schemes have been proposed to separate racemic mixtures of enantiomers by splitting a molecular beam into subbeams consisting of molecules of definite chirality [Y. Li, C. Bruder, and C. P. Sun, Phys. Rev. Lett. 99, 130403 (2007)10.1103/PhysRevLett.99.130403; X. Li and M. Shapiro, J. Chem. Phys.
Jacob, Andreas, Hornberger, Klaus
openaire   +4 more sources

Application of 2,3-Naphthalenediamine in Labeling Natural Carbohydrates for Capillary Electrophoresis

open access: yesMolecules, 2012
Neutral and acidic monosaccharide components in <em>Ganoderma lucidum</em> polysaccharide are readily labeled with 2,3-naphthalenediamine, and the resulting saccharide-naphthimidazole (NAIM) derivatives are quantified by capillary ...
Jim-Min Fang   +6 more
doaj   +1 more source

preparative HPLC enantioseparation of racemate on multigram scale

open access: yes, 2020
International audienceRacemic ethyl 2,3‐dibromopropionate, commercially available at low price, is a key intermediate used in the synthesis of several heterocycle fragments, which are present in many biologically active compounds.
Pham, Hong-Ngoc   +7 more
core   +1 more source

Enantioseparation and derivatization of selected amino acid. [PDF]

open access: yes, 2010
The enantioseparation of native and derivatized form of D,L-valine was studied on chiral stationary phase, based on teicoplanin chiral selector. The most suitable mobile phase for the enantioseparation and quantification of underivatized D,L-valine was ...
Rozumová, Nela
core   +1 more source

Preparation of Chiral Porous Organic Cage Clicked Chiral Stationary Phase for HPLC Enantioseparation

open access: yesMolecules, 2023
Porous organic cages (POCs) are a new subclass of porous materials, which are constructed from discrete cage molecules with permanent cavities via weak intermolecular forces.
Ya-Nan Gong   +8 more
doaj   +1 more source

[Adrenergic beta-receptor blockers--a group of chiral drugs: enantioseparation in the group of beta-blockers]. [Review] [123 refs] [Slovak]

open access: yes, 2004
The preparation of pure individual enantiomers represents a topical problem from the standpoint of efficacy and safety of drugs. This paper continues in the preceeding review of the blockers of beta-adrenergic receptors as a group of chiral drugs, which ...
Hutt, A J, Cizmarikova, R, Valentova, J
core   +5 more sources

ENANTIOSEPARATION OF CHIRAL COMPOUNDS CONTAINING EXTENDED pai-ELECTRON CLOUDS

open access: yes, 2022
In the last decade, planar chiral ferrocenes have attracted a growing interest in several fields, particularly in asymmetric catalysis, medicinal chemistry, chiroptical spectroscopy and electrochemistry [1].
Paola Peluso   +7 more
core  

A New C2-Symmetric Atropisomeric Thiophene-Based Monomer for Inherently Chiral Electroactive Materials: Synthesis, HPLC Resolution, and Absolute Configuration Assignment

open access: yesApplied Sciences, 2023
Herein, we report on the synthesis and high-performance liquid chromatography (HPLC) resolution of a new atropisomeric C2-symmetry chiral monomer based on the 3,3′-bithiophene core, which was developed to produce novel, inherently oligomeric chiral ...
Alessia Rosetti   +4 more
doaj   +1 more source

On the effect of aqueous organic mobile phases on the enantioseparation of halogenated 4,4’-bipyridines using polysaccharide carbamate-based chiral columns

open access: yesJournal of Chromatography Open
In the last decade, the contribution of halogen bond (HaB) in liquid phase enantioseparation of halogenated analytes was demonstrated by using polysaccharide-based chiral stationary phases (CSPs) and n-hexane-containing mixtures as mobile phases.
Barbara Sechi   +6 more
doaj   +1 more source

Molecular Dynamics Simulations of Amylose- and Cellulose-Based Selectors and Related Enantioseparations in Liquid Phase Chromatography

open access: yesMolecules, 2023
In the last few decades, theoretical and technical advancements in computer facilities and computational techniques have made molecular modeling a useful tool in liquid-phase enantioseparation science for exploring enantioselective recognition mechanisms
Roberto Dallocchio   +3 more
doaj   +1 more source

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