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19 Newest Publications about the topic chiral chromatography

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Van't Hoff analysis in chiral chromatography

11-Jan-2018 | Leonid D. Asnin, Maria V. Stepanova, Journal of Separation Science, 2018

Abstract The present review discusses the theory and application of van't Hoff analysis in chiral chromatography, with main focus on liquid chromatography. The topics considered include the physical meaning of van't Hoff equation's parameters, interpretation of thermodynamic data in terms of ...

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α-Eleostearic acid-containing triglycerides for a continuous assay to determine lipase sn-1 and sn-3 regio-preference

18-Jun-2017 | Author(s): Meddy El Alaoui, Laurent Soulère, Alexandre Noiriel, Yves Queneau, Abdelkarim Abousalham, Chemistry and Physics of Lipids, 2017

Publication date: Available online 16 June 2017 Source:Chemistry and Physics of Lipids Author(s): Meddy El Alaoui, Laurent Soulère, Alexandre Noiriel, Yves Queneau, Abdelkarim Abousalham Lipases are essentially described as sn-1 and sn-3 regio-selective. Actually few methods are ...

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Ultrafast Chiral Chromatography as the Second Dimension in Two-Dimensional Liquid Chromatography Experiments

23-Jan-2017 | Chandan L. Barhate; Erik L. Regalado; Nathan D. Contrella; Joon Lee; Junyong Jo; Alexey A. Makarov; Daniel W. Armstr ..., Analytical Chemistry, 2017

Chromatographic separation and analysis of complex mixtures of closely related species is one of the most challenging tasks in modern pharmaceutical analysis. In recent years, two-dimensional liquid chromatography (2D-LC) has become a valuable tool for improving peak capacity and selectivity. ...

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Molecules, Vol. 22, Pages 158: Preparative Scale Resolution of Enantiomers Enables Accelerated Drug Discovery and Development

18-Jan-2017 | Leek, Hanna ; Andersson, Shalini, Molecules, 2017

The provision of pure enantiomers is of increasing importance not only for the pharmaceutical industry but also for agro-chemistry and biotechnology. In drug discovery and development, the enantiomers of a chiral drug depict unique chemical and pharmacological behaviors in a chiral environment, ...

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Influence of Chirality of Lactones on the Perception of Some Typical Fruity Notes through Perceptual Interaction Phenomena in Bordeaux Dessert Wines

21-Oct-2016 | Panagiotis Stamatopoulos; Eric Brohan; Celine Prevost; Tracey E. Siebert; Markus Herderich; Philippe Darriet, Journal of Agricultural and Food Chemistry, 2016

Recent studies concerning the aroma of noble rot dessert wines revealed the importance of a well-known phenomenon in perfumery, the perceptual blending, to create the perception of “overripe orange” nuances. Thus, compounds associated with both oak wood aging (3-methyl-4-octanolide and eugenol) ...

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Mass-Selective Chiral Analysis

15-Jun-2016 | Ulrich Boesl; Aras Kartouzian, Annual Review of Analytical Chemistry, 2016

Three ways of realizing mass-selective chiral analysis are reviewed. The first is based on the formation of diastereomers that are of homo- and hetero- type with respect to the enantiomers of involved chiral molecules. This way is quite well-established with numerous applications. The other two ...

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Mass-Selective Chiral Analysis

15-Jun-2016 | Ulrich Boesl; Aras Kartouzian, Annual Review of Analytical Chemistry, 2016

Three ways of realizing mass-selective chiral analysis are reviewed. The first is based on the formation of diastereomers that are of homo- and hetero- type with respect to the enantiomers of involved chiral molecules. This way is quite well-established with numerous applications. The other two ...

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Two Pairs of Enantiomeric Alkaloid Dimers from Macleaya cordata

11-Aug-2015 | Chun-Mei Sai; Da-Hong Li; Chun-Mei Xue; Kai-Bo Wang; Ping Hu; Yue-Hu Pei; Jiao Bai; Yong-Kui Jing; Zhan-Lin Li; Hui- ..., Organic Letters, 2015

Two pairs of enantiomeric alkaloid dimers, (±)-macleayins A (1) and B (2), representing a novel dimerization pattern of two different types of alkaloids via a C–C σ-bond, were isolated from the aerial parts of Macleaya cordata. The enantiomeric separation was achieved by chiral chromatography. ...

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Simultaneous Chirality Sensing of Multiple Amines by 19F NMR

27-Feb-2015 | Yanchuan Zhao; Timothy M. Swager, Journal of the American Chemical Society, 2015

The rapid detection and differentiation of chiral compounds is important to synthetic, medicinal, and biological chemistry. Palladium complexes with chiral pincer ligands are demonstrated to have utility in determining the chirality of various amines. The binding of enantiomeric amines induces ...

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Diamine‐Catalyzed Addition of ZnEt2 to PhC(O)CF3: Two Mechanisms and Autocatalytic Asymmetric Enhancement

15-Sep-2014 | Mercedes Calvillo‐Barahona, Juan A. Casares, Carlos Cordovilla, Miroslav N. Genov, Jesús M. Martínez‐Ilarduya, Pablo ..., Chemistry - A European Journal, 2014

Abstract NMR spectroscopic studies of the catalytic addition reaction of ZnEt2 to PhC(O)CF3 in the presence of three very efficient catalysts [TMEDA, tBuBOX, and L; where L is a chiral diamine synthesized from optically pure (R,R)‐1,2‐diphenylethylenediamine and ...

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