Results 31 to 40 of about 2,821 (224)

Unravelling dispersion forces in liquid-phase enantioseparation. Part I: Impact of ferrocenyl versus phenyl groups [PDF]

, 2023
Background: Highly ordered chiral secondary structures as well as multiple (tunable) recognition sites are the keys to success of polysaccharide carbamate-based chiral selectors in enantioseparation science. Hydrogen bonds (HBs), dipole-dipole, and &
Mireia Pérez-Baeza, Paola Peluso, Sergio Cossu, Sechi, Barbara, Pérez-Baeza, Mireia, Barbara Sechi, Roberto Dallocchio, Peluso, Paola, Dessì, Alessandro, Chankvetadze, Bezhan, Tsetskhladze, Nutsa, Bezhan Chankvetadze, Nutsa Tsetskhladze, Giorgi Jibuti, Victor Mamane, Jibuti, Giorgi, Dallocchio, Roberto, Mamane, Victor, Alessandro Dessì, Cossu, Sergio   +19 more
core   +1 more source

Chromatographic and spectroscopic studies on β-cyclodextrin functionalized ionic liquid as chiral stationary phase: Enantioseparation of NSAIDs

Adsorption Science & Technology, 2018
Recently, we reported a new chiral stationary phase prepared using β-cyclodextrin functionalized with aromatic ionic liquid which is aimed to enhance the performance of enantioseparation of flavonoids and β-blockers.
Nurul Yani Rahim, Kheng Soo Tay, Sharifah Mohamad   +2 more
doaj   +1 more source

Enantioseparation of chiral phytocannabinoids in medicinal cannabis

Journal of Chromatography B, 2023
The evaluation of the chiral composition of phytocannabinoids in the cannabis plant is particularly important as the pharmacological effects of the (+) and (-) enantiomers of these compounds are completely different. Chromatographic attempts to assess the presence of the minor (+) enantiomers of the main phytocannabinoids, cannabidiolic acid (CBDA) and
Russo, Fabiana, Tolomeo, Francesco, Angela Vandelli, Maria, Biagini, Giuseppe, Laganà, Aldo, Capriotti, Anna Laura, Cerrato, Andrea, Carbone, Luigi, Perrone, Elisabetta, Cavazzini, Alberto, Maiorano, Vincenzo, Gigli, Giuseppe, Cannazza, Giuseppe, Citti, Cinzia   +13 more
openaire   +4 more sources

Effect of molecular rotation on enantioseparation [PDF]

The 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

Molecules, 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, Wei-Ting Hung, Shwu-Huey Wang, Chunchi Lin, Sylvain Kuo-Shiang Liao, Chien-Yuan Kuo, Wen-Bin Yang   +6 more
doaj   +1 more source

Enantioseparation of new axially chiral carboxylic acids on polysaccharide-based chiral stationary phases under normal phase elution conditions

Journal of Pharmaceutical and Biomedical Analysis Open, 2023
In the last decade, the availability of new and versatile synthetic strategies for the preparation of substituted 4,4’-bipyridyl derivatives based on chemo- and regioselective functionalization of the 4,4’-bipyridine core has encouraged studies for ...
Barbara Sechi, Victor Mamane, Roberto Dallocchio, Alessandro Dessì, Sergio Cossu, Giorgi Jibuti, Paola Peluso   +6 more
doaj   +1 more source

preparative HPLC enantioseparation of racemate on multigram scale

, 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, Nicolas Vanthuyne, Hong‐Ngoc Pham, Acherar, Samir, Axelle Arrault, Samir Acherar, Vanthuyne, Nicolas, Arrault, Axelle   +7 more
core   +1 more source

Enantioseparation and derivatization of selected amino acid. [PDF]

, 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

Enantioseparation of (±)-trans-β-lactam Ureas by Supercritical Fluid Chromatography

, 2020
In this study the enantioseparation of (±)-trans-β-lactam ureas 1a–g by supercritical fluid chromatography (SFC) was examined using different polysaccharide based chiral stationary phases (CSPs), and CO2/alcohol (70:30, V/V) as the mobile phase.
Jurin, Mladenka, Dražić, Tonko, Roje, Marin, Kontrec, Darko   +3 more
core   +1 more source

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

Molecules, 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, Qi-Yu Ma, Ying Wang, Jun-Hui Zhang, You-Ping Zhang, Rui-Xue Liang, Bang-Jin Wang, Sheng-Ming Xie, Li-Ming Yuan   +8 more
doaj   +1 more source