Search Results - "VILLANI, Claudio"

Comparison of Coated and Immobilized Chiral Stationary Phases Based on Amylose tris-[( S )-α-Methylbenzylcarbamate] for the HPLC Enantiomer Separation of α-Lipoic Acid and Its Reduced Form by Rosetti, Alessia, Villani, Claudio, Pierini, Marco, Cirilli, Roberto

“…The couple of chiral sulfur compounds α-lipoic acid (ALA)/α-dihydrolipoic acid (DHALA) has attracted considerable attention in recent years owing to its…”
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Enantioselective ultra high performance liquid and supercritical fluid chromatography: The race to the shortest chromatogram by Ciogli, Alessia, Ismail, Omar H., Mazzoccanti, Giulia, Villani, Claudio, Gasparrini, Francesco

“…The ever‐increasing need for enantiomerically pure chiral compounds has greatly expanded the number of enantioselective separation methods available for the…”
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Pirkle-type chiral stationary phase on core–shell and fully porous particles: Are superficially porous particles always the better choice toward ultrafast high-performance enantioseparations? by Ismail, Omar H., Pasti, Luisa, Ciogli, Alessia, Villani, Claudio, Kocergin, Jelena, Anderson, Scott, Gasparrini, Francesco, Cavazzini, Alberto, Catani, Martina

“…•Novel Pirkle-type Whelk-O1 core–shell chiral stationary phase was prepared.•Difficulty of efficiently packing polar core–shell particles is reported.•Effect…”
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Dynamic high performance liquid chromatography on chiral stationary phases. Low temperature separation of the interconverting enantiomers of diazepam, flunitrazepam, prazepam and tetrazepam by Sabia, Rocchina, Ciogli, Alessia, Pierini, Marco, Gasparrini, Francesco, Villani, Claudio

“…•The conformational enantiomers of diazepam were resolved by cryo-HPLC on Whelk-O1.•Prazepam, tetrazepam and flunitrazepam were also resolved on the Whelk-O1…”
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Helical Sense-Responsive and Substituent-Sensitive Features in Vibrational and Electronic Circular Dichroism, in Circularly Polarized Luminescence, and in Raman Spectra of Some Simple Optically Active Hexahelicenes by Abbate, Sergio, Longhi, Giovanna, Lebon, France, Castiglioni, Ettore, Superchi, Stefano, Pisani, Laura, Fontana, Francesca, Torricelli, Franck, Caronna, Tullio, Villani, Claudio, Sabia, Rocchina, Tommasini, Matteo, Lucotti, Andrea, Mendola, Daniele, Mele, Andrea, Lightner, David A

“…Four different hexahelicenes, 5-aza-hexahelicene (1), hexahelicene (2), 2-methyl-hexahelicene (3), and 2-bromo-hexahelicene (4), were prepared and their…”
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Molecular Recognition of the HPLC Whelk-O1 Selector towards the Conformational Enantiomers of Nevirapine and Oxcarbazepine by Franzini, Roberta, Pierini, Marco, Mazzanti, Andrea, Iazzetti, Antonia, Ciogli, Alessia, Villani, Claudio

“…The presence of stereogenic elements is a common feature in pharmaceutical compounds, and affording optically pure stereoisomers is a frequent issue in drug…”
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Chiroptical properties of the ground and excited states of two thia-bridged triarylamine heterohelicenes by Longhi, Giovanna, Castiglioni, Ettore, Villani, Claudio, Sabia, Rocchina, Menichetti, Stefano, Viglianisi, Caterina, Devlin, Frank, Abbate, Sergio

“…[Display omitted] •Chiroptical Spectra performed on Thia-bridged Triarylamino Heterohelicenes (TBTA-HELI).•TBTA-HELI are configurationally more stable than…”
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Effect of Natural Deep Eutectic Solvents on trans -Resveratrol Photo-Chemical Induced Isomerization and 2,4,6-Trihydroxyphenanthrene Electro-Cyclic Formation by Mattioli, Roberto, Di Risola, Daniel, Federico, Rodolfo, Ciogli, Alessia, Gasparrini, Francesco, Villani, Claudio, Fontana, Mario, Maggiore, Anna, d'Erme, Maria, Mosca, Luciana, Francioso, Antonio

“…-Resveratrol is a natural bioactive compound with well-recognized health promoting effects. When exposed to UV light, this compound can undergo a…”
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A New C2-Symmetric Atropisomeric Thiophene-Based Monomer for Inherently Chiral Electroactive Materials: Synthesis, HPLC Resolution, and Absolute Configuration Assignment by Rosetti, Alessia, Apolloni, Giulio, Villani, Claudio, Benincori, Tiziana, Cirilli, Roberto

“…Herein, we report on the synthesis and high-performance liquid chromatography (HPLC) resolution of a new atropisomeric C2-symmetry chiral monomer based on the…”
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Degradation of Post-consumer PLA: Hydrolysis of Polymeric Matrix and Oligomers Stabilization in Aqueous Phase by Cristina, Annesini Maria, Sara, Frattari, Fausto, Gironi, Vincenzo, Piemonte, Rocchina, Sabia, Claudio, Villani

“…Degradation of post-consumer PLA to lactic acid was analysed in order to assess the economic feasibility of the PLA chemical recycling process. Hydrolysis of…”
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Low Temperature Dynamic Chromatography for the Separation of the Interconverting Conformational Enantiomers of the Benzodiazepines Clonazolam, Flubromazolam, Diclazepam and Flurazepam by Franzini, Roberta, Rosetti, Alessia, Villani, Claudio

“…Benzodiazepines (BZDs) are an important class of psychoactive drugs with hypnotic-sedative, myorelaxant, anxiolytic and anticonvulsant properties due to…”
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Salivary caffeine in Parkinson’s disease by Leodori, Giorgio, De Bartolo, Maria Ilenia, Belvisi, Daniele, Ciogli, Alessia, Fabbrini, Andrea, Costanzo, Matteo, Manetto, Simone, Conte, Antonella, Villani, Claudio, Fabbrini, Giovanni, Berardelli, Alfredo

“…We aimed to investigate salivary caffeine content, caffeine absorption and metabolism in Parkinson’s disease (PD) and verify whether salivary caffeine can be…”
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Insights into the Phytochemistry of the Cuban Endemic Medicinal Plant Phyllanthus orbicularis : Fideloside, a Novel Bioactive 8- C -glycosyl 2,3-Dihydroflavonol by Francioso, Antonio, Franke, Katrin, Villani, Claudio, Mosca, Luciana, D'Erme, Maria, Frischbutter, Stefan, Brandt, Wolfgang, Sanchez-Lamar, Angel, Wessjohann, Ludger

“…(Phyllanthaceae) is an endemic evergreen tropical plant of Cuba that grows in the western part of the island and is used in traditional medicine as an…”
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CF3: an overlooked chromophore in VCD spectra. A review of recent applications in structural determination by Abbate, Sergio, Longhi, Giovanna, Mazzeo, Giuseppe, Villani, Claudio, Petković, Silvija, Ruzziconi, Renzo

“…The VCD spectra of several chiral compounds containing the CF3 group are reviewed and analyzed. The list of compounds contains pharmaceutically relevant…”
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Single-run reversed-phase HPLC method for determining sertraline content, enantiomeric purity, and related substances in drug substance and finished product by Rosetti, Alessia, Ferretti, Rosella, Zanitti, Leo, Casulli, Adriano, Villani, Claudio, Cirilli, Roberto

“…A direct enantio-, diastereo-, and chemo-selective high-performance liquid chromatographic method was developed for determining the content, enantiomeric…”
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Static vs. Dynamic Electrostatic Repulsion Reversed Phase Liquid Chromatography: Solutions for Pharmaceutical and Biopharmaceutical Basic Compounds by Mazzoccanti, Giulia, Gasparrini, Francesco, Calcaterra, Andrea, Villani, Claudio, Ciogli, Alessia

“…Many efforts have been made to separate basic compounds, which are challenging to resolve in reversed phase liquid chromatography. In this process, they are…”
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Separation of Monosaccharide Anomers on Photo-Click Cysteine-Based Stationary Phase: The α/β Interconversion Process Studied by Dynamic Hydrophilic Liquid Chromatography by Calcaterra, Andrea, Manetto, Simone, Buonsenso, Fabio, Francioso, Antonio, Pierini, Marco, Villani, Claudio

“…In High-Performance Liquid Chromatography (HPLC), the separation of reducing sugars can typically show three possible typologies of chromatographic profiles…”
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Enantioselective ultra-high and high performance liquid chromatography: A comparative study of columns based on the Whelk-O1 selector by Kotoni, Dorina, Ciogli, Alessia, D’Acquarica, Ilaria, Kocergin, Jelena, Szczerba, Ted, Ritchie, Harald, Villani, Claudio, Gasparrini, Francesco

“…► The Whelk-O1 selector was covalently immobilized onto 1.7-μm porous silica particles. ► A UHPLC 100mm×4.6mm column generated more than 265000N/m for chiral…”
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Synthesis, Stereochemical and Photophysical Properties of Functionalized Thiahelicenes by Valentina Pelliccioli, Francesca Cardano, Giacomo Renno, Francesca Vasile, Claudia Graiff, Giuseppe Mazzeo, Andrea Fin, Giovanna Longhi, Sergio Abbate, Alessia Rosetti, Claudio Villani, Guido Viscardi, Emanuela Licandro, Silvia Cauteruccio

“…We report on the synthesis of a novel class of functionalized thia[6]helicenes and a thia[5]helicene, containing a benzothiophene unit and a second heteroatom…”
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Dynamic HPLC on chiral stationary phases: A powerful tool for the investigation of stereomutation processes by D'Acquarica, Ilaria, Gasparrini, Francesco, Pierini, Marco, Villani, Claudio, Zappia, Giovanni

“…Dynamic HPLC on enantioselective stationary phases has become a well‐established technique to investigate chiral molecules with internal motions that result in…”
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