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Li M, Zhang L, Wu B, Hong M. High-Enantioselectivity Adsorption Separation of Racemic Mandelic Acid and Methyl Mandelate by Robust Chiral UiO-68-Type Zr-MOFs. Inorg Chem 2024; 63:381-389. [PMID: 38150656 DOI: 10.1021/acs.inorgchem.3c03277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2023]
Abstract
Mandelic acid and its analogues are highly valuable medical intermediates and play an important role in the pharmaceutical industry, biochemistry, and life sciences. Therefore, effective enantioselective recognition and separation of mandelic acid are of great significance. In this study, two of our recently reported chiral amine-alcohol-functionalized UiO-68-type Zr-HMOFs 1 and 3 with high chemical stability, abundant binding sites, and large chiral pores were selected as chiral selectors for the enantioselective separation of mandelic acid (MA), methyl mandelate (MM), and other chiral molecules containing only one phenyl. Materials 1 and 3 exhibited excellent enantioselective separation performance for MA and MM. Especially for the separation of racemate MA, the enantiomeric excess values reached 97.3 and 98.9%, which are the highest reported values so far. Experimental and density functional theory (DFT) computational results demonstrated that the introduction of additional phenyls on the chiral amine alcohol pendants in 3 had somewhat impact on the enantioselective adsorption and separation of MA or MM compared with 1, but it was not significant. Further research on the enantioselective separation of those chiral adsorbates containing only one phenyl by material 1 indicated the crucial role of the groups directly bonded to the chiral carbons of the adsorbates in the selective separation of enantiomers, especially showing higher enantioselectivity for the adsorbates with two hydrogen-bonding groups directly bonded to its chiral carbon.
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Affiliation(s)
- Mengna Li
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Lei Zhang
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Benlai Wu
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Maochun Hong
- State Key Laboratory of Structural Chemistry, Fujian Institute of the Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, Fujian, P. R. China
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2
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Dallocchio R, Dessì A, Sechi B, Peluso P. Molecular Dynamics Simulations of Amylose- and Cellulose-Based Selectors and Related Enantioseparations in Liquid Phase Chromatography. Molecules 2023; 28:7419. [PMID: 37959839 PMCID: PMC10647714 DOI: 10.3390/molecules28217419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 10/27/2023] [Accepted: 10/30/2023] [Indexed: 11/15/2023] Open
Abstract
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 underlying enantioseparations and for identifying selector-analyte noncovalent interactions that contribute to binding and recognition. Because of the dynamic nature of the chromatographic process, molecular dynamics (MD) simulations are particularly versatile in the visualization of the three-dimensional structure of analytes and selectors and in the unravelling of mechanisms at molecular levels. In this context, MD was also used to explore enantioseparation processes promoted by amylose and cellulose-based selectors, the most popular chiral selectors for liquid-phase enantioselective chromatography. This review presents a systematic analysis of the literature published in this field, with the aim of providing the reader with a comprehensive picture about the state of the art and what is still missing for modeling cellulose benzoates and the phenylcarbamates of amylose and cellulose and related enantioseparations with MD. Furthermore, advancements and outlooks, as well as drawbacks and pitfalls still affecting the applicability of MD in this field, are also discussed. The importance of integrating theoretical and experimental approaches is highlighted as an essential strategy for profiling mechanisms and noncovalent interaction patterns.
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Affiliation(s)
| | | | | | - Paola Peluso
- Unit of Enantioselective Chromatography and Molecular Recognition, Institute of Biomolecular Chemistry ICB, Secondary Branch of Sassari, CNR, Traversa La Crucca 3, Regione Baldinca, Li Punti, 07100 Sassari, Italy; (R.D.); (A.D.); (B.S.)
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3
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Tsui HW, Huang SX, Tseng TH. Heterogenous adsorption mechanisms for describing enantioselective retention in normal-phase liquid chromatography. J Chromatogr A 2023; 1704:464140. [PMID: 37315447 DOI: 10.1016/j.chroma.2023.464140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 06/02/2023] [Accepted: 06/07/2023] [Indexed: 06/16/2023]
Abstract
In this study, the enantioselective retention behaviors of methyl mandelate (MM) and benzoin (B) were investigated using Chiralpak IB as a sorbent and ethanol, 1-propanol, and 1-butanol as solvent modifiers in the normal-phase mode. For both MM and B, similar chiral recognition mechanisms were observed, potentially involving at least two types of chiral adsorption sites. With a retention model describing local retention behaviors, an enantioselectivity model based on a three-site model was proposed to describe the data. Fitted parameters were also used to analyze the contributions of each type of adsorption site to the apparent retention behavior. Combining the local retention model with the three-site model provided a qualitative and quantitative explanation for the correlation between modifier concentration and enantioselectivity. Overall, our results indicated that heterogeneous adsorption mechanisms are a key aspect in understanding enantioselective retention behaviors. Distinct local adsorption sites contribute differently to apparent retention behaviors, with these contributions being influenced by the mobile phase composition to varying degrees. Hence, enantioselectivity changes with variations in modifier concentration.
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Affiliation(s)
- Hung-Wei Tsui
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, 1, Sec. 3, Zhongxiao E. Rd., Taipei 10608 Taiwan.
| | - Si-Xian Huang
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, 1, Sec. 3, Zhongxiao E. Rd., Taipei 10608 Taiwan
| | - Ting-Hsien Tseng
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, 1, Sec. 3, Zhongxiao E. Rd., Taipei 10608 Taiwan
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4
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Peluso P, Chankvetadze B. Recognition in the Domain of Molecular Chirality: From Noncovalent Interactions to Separation of Enantiomers. Chem Rev 2022; 122:13235-13400. [PMID: 35917234 DOI: 10.1021/acs.chemrev.1c00846] [Citation(s) in RCA: 57] [Impact Index Per Article: 28.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
It is not a coincidence that both chirality and noncovalent interactions are ubiquitous in nature and synthetic molecular systems. Noncovalent interactivity between chiral molecules underlies enantioselective recognition as a fundamental phenomenon regulating life and human activities. Thus, noncovalent interactions represent the narrative thread of a fascinating story which goes across several disciplines of medical, chemical, physical, biological, and other natural sciences. This review has been conceived with the awareness that a modern attitude toward molecular chirality and its consequences needs to be founded on multidisciplinary approaches to disclose the molecular basis of essential enantioselective phenomena in the domain of chemical, physical, and life sciences. With the primary aim of discussing this topic in an integrated way, a comprehensive pool of rational and systematic multidisciplinary information is provided, which concerns the fundamentals of chirality, a description of noncovalent interactions, and their implications in enantioselective processes occurring in different contexts. A specific focus is devoted to enantioselection in chromatography and electromigration techniques because of their unique feature as "multistep" processes. A second motivation for writing this review is to make a clear statement about the state of the art, the tools we have at our disposal, and what is still missing to fully understand the mechanisms underlying enantioselective recognition.
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Affiliation(s)
- Paola Peluso
- Istituto di Chimica Biomolecolare ICB, CNR, Sede secondaria di Sassari, Traversa La Crucca 3, Regione Baldinca, Li Punti, I-07100 Sassari, Italy
| | - Bezhan Chankvetadze
- Institute of Physical and Analytical Chemistry, School of Exact and Natural Sciences, Tbilisi State University, Chavchavadze Avenue 3, 0179 Tbilisi, Georgia
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5
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Maia PP, Nascimento CA, Silva CF, Nascimento Jr. CS. Chiral separation study of atenolol and carvedilol β-blocker drugs by DFT calculations. COMPUT THEOR CHEM 2022. [DOI: 10.1016/j.comptc.2022.113741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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6
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Cantatore C, Korb M, Lang H, Cirilli R. ON/OFF receptor-like enantioseparation of planar chiral 1,2-ferrocenes on an amylose-based chiral stationary phase: The role played by 2-propanol. Anal Chim Acta 2022; 1211:339880. [DOI: 10.1016/j.aca.2022.339880] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 04/20/2022] [Accepted: 04/25/2022] [Indexed: 01/02/2023]
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7
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Wahba MEK, El Sherbiny D, El Wasseef D. Estimating chiral selector potential of micelle-based mobile phases through the analysis of some enantiomeric mixtures. JOURNAL OF TAIBAH UNIVERSITY FOR SCIENCE 2021. [DOI: 10.1080/16583655.2021.1927399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- M. E. K. Wahba
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt
| | - D. El Sherbiny
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
- Department of Medicinal Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt
| | - D. El Wasseef
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa, Egypt
- Department of Medicinal Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt
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Tsui HW, Zhang HL, Hsieh CH. Effect of 2-propanol content on solute retention mechanisms determined using amylose tris(3,5-dimethylphenylcarbamate) chiral stationary phase under normal- and reversed-phase conditions. J Chromatogr A 2021; 1650:462226. [PMID: 34087518 DOI: 10.1016/j.chroma.2021.462226] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 04/12/2021] [Accepted: 04/29/2021] [Indexed: 11/29/2022]
Abstract
The electrostatic interactions between chiral solutes and polysaccharide (PS)-based chiral selectors are the key to achieving chiral recognition; however, PS-based sorbents, derivatized of phenyl moieties, can exhibit considerably non-polar characteristics, and they are also useful for the separation of enantiomers in the reversed-phase mode. In this study, an immobilized amylose 3,5-dimethylphenylcarbamate-based sorbent was used to investigate the balance between electrostatic interactions and solvophobic interactions, with complementary effects on solute retention behavior when the isopropanol (IPA) concentration was altered. It was proposed that in both normal- and reversed-phase modes, information on the retention mechanisms could be obtained by observing the curvature of the logarithm of the retention factor versus the logarithm of the IPA concentration, and the slope values of the curves were related to the number of displaced IPA molecules upon solute adsorption. Using the proposed model and the two-site adsorption model, the retention behaviors of pantolactone (PL) enantiomers in both normal- and reversed-phase modes were investigated. The PL-sorbent interactions were classified into four types: electrostatic/enantioselective, electrostatic/nonselective, solvophobic/enantioselective, and solvophobic/nonselective. At IPA concentrations below 50 vol.% in n-hexane, the retention behaviors of PL were dominated by electrostatic/enantioselective sites, whereas at IPA concentrations beyond 50 vol.%, the solvophobic interactions of PL-sorbent were strengthened and mostly nonselective. By contrast, in the reversed-phase mode, a reverse in the enantiomeric elution order of PL was observed at 10 vol.% IPA, and considerably different enantioselectivity behaviors were found below and above 20 vol.%, indicating an abrupt change in the sorbent molecular environment. At IPA concentrations beyond 40 vol.%, the presence of PL-sorbent electrostatic interactions enhanced chiral recognition.
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Affiliation(s)
- Hung-Wei Tsui
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, 1, Sec. 3, Zhongxiao E. Rd., Taipei 10608 Taiwan.
| | - Hong-Lin Zhang
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, 1, Sec. 3, Zhongxiao E. Rd., Taipei 10608 Taiwan
| | - Ching-Hung Hsieh
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, 1, Sec. 3, Zhongxiao E. Rd., Taipei 10608 Taiwan
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9
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Tsui HW, Ye PW, Huang SX. Effect of solvents on the chiral recognition mechanisms of immobilized cellulose-based chiral stationary phase. J Chromatogr A 2020; 1637:461796. [PMID: 33387913 DOI: 10.1016/j.chroma.2020.461796] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 12/07/2020] [Accepted: 12/08/2020] [Indexed: 02/06/2023]
Abstract
The effect of solvents on the enantioselectivities of four structurally similar chiral solutes with a cellulose derivative-based chiral stationary phase, Chiralpak IB, were studied using acetone (AC), 2-propanol (IPA), and tert-butanol (TBA) separately as polar modifiers. The enantioselectivities α of benzoin and methyl mandelate decrease with an increase in modifier concentration CM, whereas the enantioselectivity of pantolactone increased with increasing AC concentration. These results were attributed to the heterogeneous adsorption mechanisms of enantiomers. To interpret the dependence of enantioselectivity on modifier content, an enantioselectivity model based on a two-site adsorption model was proposed. The dependence of α on CM was inferred to be mainly due to the distinct modulating effects of modifier concentration on the two adsorption sites: the nonselective type-I site and enantioselective type-II site. The model fitted the benzoin data satisfactorily over a wide TBA concentration range. The retention factors as a function of TBA concentration were successfully deconvoluted for each site. With the use of the proposed model, it was inferred that the chiral recognitions of benzoin and methyl mandelate were mainly achieved by the presence of an aromatic group adjacent to the hydroxyl group. When using IPA and TBA separately as modifiers, the presence of an aromatic group adjacent to the ketone group mainly contributed to the nonselective π interactions and enantioselective steric interactions, respectively. These results, along with those of the modifier adsorption isotherms, determined using the perturbation method, as well as the retention behaviors of various achiral solutes, indicate that the molecular recognition mechanism of IB sorbent is highly sensitive to the adsorbate's molecular geometry. The molecular environment of the sorbent can be controlled using different modifiers, leading to distinct adsorption and retention mechanisms.
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Affiliation(s)
- Hung-Wei Tsui
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, 1, Sec. 3, Zhongxiao E. Rd., Taipei 10608 Taiwan.
| | - Pei-Wen Ye
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, 1, Sec. 3, Zhongxiao E. Rd., Taipei 10608 Taiwan
| | - Si-Xian Huang
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, 1, Sec. 3, Zhongxiao E. Rd., Taipei 10608 Taiwan
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10
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Noncovalent interactions in high-performance liquid chromatography enantioseparations on polysaccharide-based chiral selectors. J Chromatogr A 2020; 1623:461202. [DOI: 10.1016/j.chroma.2020.461202] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 05/02/2020] [Accepted: 05/04/2020] [Indexed: 12/13/2022]
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11
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Tsui HW, Chou PY, Ye PW, Chen SC, Chen YW. Effects of the Sorbent Backbone and Side Chain on Retention Mechanisms Using Immobilized Polysaccharide-Based Stationary Phases in Normal Phase Mode. Chromatographia 2020. [DOI: 10.1007/s10337-020-03898-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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12
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Silva CF, Nascimento TA, Guimarães L, Borges KB, Nascimento CS. Elucidation of the chromatographic enantiomer elution order for praziquantel: An experimental and theoretical assessment. Chirality 2020; 32:353-358. [DOI: 10.1002/chir.23164] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Accepted: 12/17/2019] [Indexed: 11/11/2022]
Affiliation(s)
- Camilla Fonseca Silva
- Departamento de Ciências Naturais (DCNAT)Universidade Federal de São João Del‐Rei (UFSJ), Campus Dom Bosco São João Minas Gerais Brazil
| | - Tienne Aparecida Nascimento
- Departamento de Ciências Naturais (DCNAT)Universidade Federal de São João Del‐Rei (UFSJ), Campus Dom Bosco São João Minas Gerais Brazil
| | - Luciana Guimarães
- Departamento de Ciências Naturais (DCNAT)Universidade Federal de São João Del‐Rei (UFSJ), Campus Dom Bosco São João Minas Gerais Brazil
| | - Keyller Bastos Borges
- Departamento de Ciências Naturais (DCNAT)Universidade Federal de São João Del‐Rei (UFSJ), Campus Dom Bosco São João Minas Gerais Brazil
| | - Clebio Soares Nascimento
- Departamento de Ciências Naturais (DCNAT)Universidade Federal de São João Del‐Rei (UFSJ), Campus Dom Bosco São João Minas Gerais Brazil
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13
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Computational studies in enantioselective liquid chromatography: Forty years of evolution in docking- and molecular dynamics-based simulations. Trends Analyt Chem 2020. [DOI: 10.1016/j.trac.2019.115703] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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14
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Silva CF, Guimarães L, Borges KB, Nascimento CS. Development and validation of an experimental and theoretical method for the chiral discrimination of dinotefuran. Chirality 2019; 32:53-63. [DOI: 10.1002/chir.23136] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2019] [Accepted: 09/09/2019] [Indexed: 02/06/2023]
Affiliation(s)
- Camilla Fonseca Silva
- Departamento de Ciências Naturais (DCNAT)Universidade Federal de São João Del‐Rei (UFSJ) São João Del Rei MG Brazil
| | - Luciana Guimarães
- Departamento de Ciências Naturais (DCNAT)Universidade Federal de São João Del‐Rei (UFSJ) São João Del Rei MG Brazil
| | - Keyller Bastos Borges
- Departamento de Ciências Naturais (DCNAT)Universidade Federal de São João Del‐Rei (UFSJ) São João Del Rei MG Brazil
| | - Clebio Soares Nascimento
- Departamento de Ciências Naturais (DCNAT)Universidade Federal de São João Del‐Rei (UFSJ) São João Del Rei MG Brazil
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15
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Investigation of the mechanism of enantioseparation of some drug compounds by considering the mobile phase in HPLC by molecular dynamics simulation. J Mol Model 2019; 25:297. [DOI: 10.1007/s00894-019-4184-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Accepted: 08/23/2019] [Indexed: 10/26/2022]
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16
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Wang X, House DW, Oroskar PA, Oroskar A, Oroskar A, Jameson CJ, Murad S. Molecular dynamics simulations of the chiral recognition mechanism for a polysaccharide chiral stationary phase in enantiomeric chromatographic separations. Mol Phys 2019. [DOI: 10.1080/00268976.2019.1647360] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Xiaoyu Wang
- Department of Chemical Engineering, Illinois Institute of Technology, Chicago, IL, USA
| | | | | | | | | | - Cynthia J. Jameson
- Department of Chemistry, University of Illinois at Chicago, Chicago, IL, USA
| | - Sohail Murad
- Department of Chemical Engineering, Illinois Institute of Technology, Chicago, IL, USA
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Peluso P, Dessì A, Dallocchio R, Mamane V, Cossu S. Recent studies of docking and molecular dynamics simulation for liquid-phase enantioseparations. Electrophoresis 2019; 40:1881-1896. [PMID: 30710444 DOI: 10.1002/elps.201800493] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Revised: 01/25/2019] [Accepted: 01/25/2019] [Indexed: 12/16/2022]
Abstract
Liquid-phase enantioseparations have been fruitfully applied in several fields of science. Various applications along with technical and theoretical advancements contributed to increase significantly the knowledge in this area. Nowadays, chromatographic techniques, in particular HPLC on chiral stationary phase, are considered as mature technologies. In the last thirty years, CE has been also recognized as one of the most versatile technique for analytical scale separation of enantiomers. Despite the huge number of papers published in these fields, understanding mechanistic details of the stereoselective interaction between selector and selectand is still an open issue, in particular for high-molecular weight chiral selectors like polysaccharide derivatives. With the ever growing improvement of computer facilities, hardware and software, computational techniques have become a basic tool in enantioseparation science. In this field, molecular docking and dynamics simulations proved to be extremely adaptable to model and visualize at molecular level the spatial proximity of interacting molecules in order to predict retention, selectivity, enantiomer elution order, and profile noncovalent interaction patterns underlying the recognition process. On this basis, topics and trends in using docking and molecular dynamics as theoretical complement of experimental LC and CE chiral separations are described herein. The basic concepts of these computational strategies and seminal studies performed over time are presented, with a specific focus on literature published between 2015 and November 2018. A systematic compilation of all published literature has not been attempted.
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Affiliation(s)
- Paola Peluso
- Istituto di Chimica Biomolecolare ICB CNR - Sede Secondaria di Sassari, Sassari, Sardegna, Italy
| | - Alessandro Dessì
- Istituto di Chimica Biomolecolare ICB CNR - Sede Secondaria di Sassari, Sassari, Sardegna, Italy
| | - Roberto Dallocchio
- Istituto di Chimica Biomolecolare ICB CNR - Sede Secondaria di Sassari, Sassari, Sardegna, Italy
| | - Victor Mamane
- Institut de Chimie de Strasbourg, Strasbourg, Alsace, France
| | - Sergio Cossu
- Dipartimento di Scienze Molecolari e Nanosistemi DSMN, Università Ca' Foscari Venezia, Mestre Venezia, Veneto, Italy
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Abstract
Stereospecific recognition of chiral molecules plays an important role in nature as the basis of the interaction of chiral bioactive compounds with the chiral target structures. In separation sciences such as chromatographic and capillary electromigration techniques, interactions between chiral analytes and chiral selectors, i.e., the formation of transient diastereomeric complexes in thermodynamic equilibria, are the basis for chiral separations. Due to the large structural variety of chiral selectors, different structural features contribute to the overall chiral recognition process. This introductory chapter briefly summarizes the present understanding of the structural enantioselective recognition processes for various types of chiral selectors.
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Affiliation(s)
- Gerhard K E Scriba
- Department of Pharmaceutical Chemistry, University of Jena, Jena, Germany.
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Tsui HW, Cheng KT, Lin AY, Chen SC, Hung YL, Chou PY. Solvent effects on the retention mechanisms of an amylose-based sorbent. J Chromatogr A 2018; 1556:64-72. [DOI: 10.1016/j.chroma.2018.04.065] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Revised: 04/06/2018] [Accepted: 04/26/2018] [Indexed: 11/25/2022]
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20
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Zhu B, Zhao F, Yu J, Wang Z, Song Y, Li Q. Chiral separation and a molecular modeling study of eight azole antifungals on the cellulose tris(3,5-dichlorophenylcarbamate) chiral stationary phase. NEW J CHEM 2018. [DOI: 10.1039/c8nj01845f] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Four immobilized polysaccharide-based chiral stationary phases have been examined for their enantioselectivity on azole analytes using normal phase liquid chromatography.
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Affiliation(s)
- Bolin Zhu
- School of Pharmacy
- Shenyang Pharmaceutical University
- Shenyang
- P. R. China
| | - Fan Zhao
- School of Life Science and Bio-pharmaceutics
- Shenyang Pharmaceutical University
- Shenyang
- P. R. China
| | - Jia Yu
- School of Pharmacy
- Shenyang Pharmaceutical University
- Shenyang
- P. R. China
| | - Zhaokun Wang
- School of Pharmacy
- Shenyang Pharmaceutical University
- Shenyang
- P. R. China
| | - Yongbo Song
- School of Life Science and Bio-pharmaceutics
- Shenyang Pharmaceutical University
- Shenyang
- P. R. China
| | - Qing Li
- School of Pharmacy
- Shenyang Pharmaceutical University
- Shenyang
- P. R. China
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Mignot M, Schammé B, Tognetti V, Joubert L, Cardinael P, Peulon-Agasse V. Anthracenyl polar embedded stationary phases with enhanced aromatic selectivity. Part II: A density functional theory study. J Chromatogr A 2017; 1519:91-99. [DOI: 10.1016/j.chroma.2017.08.083] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Revised: 08/28/2017] [Accepted: 08/30/2017] [Indexed: 12/28/2022]
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22
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Vargas-Caporali J, Juaristi E. Fundamental Developments of Chiral Phase Chromatography in Connection with Enantioselective Synthesis of β-Amino Acids. Isr J Chem 2017. [DOI: 10.1002/ijch.201700011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Jorge Vargas-Caporali
- Departamento de Química; Centro de Investigación y de Estudios Avanzados, Instituto Politécnico Nacional Avenida IPN No. 2508; 07360 Ciudad de México México
| | - Eusebio Juaristi
- Departamento de Química; Centro de Investigación y de Estudios Avanzados, Instituto Politécnico Nacional Avenida IPN No. 2508; 07360 Ciudad de México México
- El Colegio Nacional; Luis González Obregón No. 23, Centro Histórico 06020 Ciudad de México México
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Hsieh HY, Wu SG, Tsui HW. Retention models and interaction mechanisms of benzene and other aromatic molecules with an amylose-based sorbent. J Chromatogr A 2017; 1494:55-64. [DOI: 10.1016/j.chroma.2017.03.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Revised: 03/01/2017] [Accepted: 03/06/2017] [Indexed: 11/30/2022]
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24
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25
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Elucidation of adsorption mechanisms of solvent molecules with distinct functional groups on amylose tris(3,5-dimethylphenylcarbamate)-based sorbent. J Chromatogr A 2016; 1460:123-34. [DOI: 10.1016/j.chroma.2016.07.024] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Revised: 07/07/2016] [Accepted: 07/07/2016] [Indexed: 11/24/2022]
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26
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Wang Y, Zhuang Y, Gao J, Zou G, Zhang Q. Enantioselective assembly of amphipathic chiral polymer and racemic chiral small molecules during preparation of micro-scale polymer vesicles. SOFT MATTER 2016; 12:2751-2756. [PMID: 26853976 DOI: 10.1039/c5sm02957k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Enantioselective assembly is observed during preparation of vesicles from a solution mixture of an amphipathic block copolymer bearing pendent chiral L- or D-phenylalanine groups in hydrophobic segments and racemic chiral small molecules. Primary experimental results reveal that racemic chiral small molecules have been enantioselectively encapsulated into the hydrophobic shells of assembled vesicles with homochiral bilayer membrane structure, showing reverse CD signals compared with the original vesicles. A further study shows that the enantiomeric excess obtained through the enantioselective assembly is directly dependent on the molecular weight of the hydrophobic chiral chain segments, implying both the hydrophobic interaction and chirality are key points during the assembly of vesicles. Other factors, such as hydrogen-bonding interactions and π-π stacking interaction, are also found to be responsible for the enantioselective assembly phenomenon during the formation of the vesicles.
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Affiliation(s)
- Yingjue Wang
- CAS Key Laboratory of Soft Matter Chemistry, Key Laboratory of Optoelectronic Science and Technology, Innovation Centre of Chemistry for Energy Materials, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China.
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Shen J, Okamoto Y. Efficient Separation of Enantiomers Using Stereoregular Chiral Polymers. Chem Rev 2015; 116:1094-138. [DOI: 10.1021/acs.chemrev.5b00317] [Citation(s) in RCA: 465] [Impact Index Per Article: 51.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Jun Shen
- Polymer
Materials Research Center, Key Laboratory of Superlight Materials
and Surface Technology, Ministry of Education, College of Materials
Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, People’s Republic of China
| | - Yoshio Okamoto
- Polymer
Materials Research Center, Key Laboratory of Superlight Materials
and Surface Technology, Ministry of Education, College of Materials
Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, People’s Republic of China
- Graduate
School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
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Salvalaglio M, Paloni M, Guelat B, Morbidelli M, Cavallotti C. A two level hierarchical model of protein retention in ion exchange chromatography. J Chromatogr A 2015; 1411:50-62. [DOI: 10.1016/j.chroma.2015.07.101] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2015] [Revised: 07/23/2015] [Accepted: 07/27/2015] [Indexed: 10/23/2022]
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29
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Ma S, Tsui HW, Spinelli E, Busacca CA, Franses EI, Wang NHL, Wu L, Lee H, Senanayake C, Yee N, Gonella N, Fandrick K, Grinberg N. Insights into chromatographic enantiomeric separation of allenes on cellulose carbamate stationary phase. J Chromatogr A 2014; 1362:119-28. [DOI: 10.1016/j.chroma.2014.08.032] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2014] [Revised: 07/30/2014] [Accepted: 08/09/2014] [Indexed: 10/24/2022]
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Wu X, Fei M, Chen Y, Wang Z, Chen Y. Enzymatic synthesis of L-norephedrine by coupling recombinant pyruvate decarboxylase and ω-transaminase. Appl Microbiol Biotechnol 2014; 98:7399-408. [PMID: 24818692 DOI: 10.1007/s00253-014-5797-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2014] [Revised: 04/24/2014] [Accepted: 04/27/2014] [Indexed: 11/28/2022]
Abstract
L-Norephedrine, a natural plant alkaloid, possesses similar activity as ephedrine and can be used as a vicinal amino alcohol for the asymmetric synthesis of a variety of optically pure compounds, including pharmaceuticals, fine chemicals, and agrochemicals. Because of the existence of two asymmetric centers, efficient synthesis of L-norephedrine has been challenging. In the present study, an R-selective pyruvate decarboxylase from Saccharomyces cerevisiae and an S-selective ω-transaminase from Vibrio fluvialis JS17 were coupled to develop a sequential process for the stereoselective biosynthesis of L-norephedrine. After systematic optimization of the reaction conditions, a green, economic, and practical biocatalytic method to prepare L-norephedrine was established to achieve de and ee values of greater than 99.5 % and a molar yield over 60 %. The present coupling approach can facilitate the development of sequential reactions by various biocatalysts.
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Affiliation(s)
- Xuri Wu
- State Key Laboratory of Natural Medicines and Laboratory of Chemical Biology, China Pharmaceutical University, 24 Tongjia St., Nanjing, Jiangsu Province, 210009, People's Republic of China
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31
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Tsui HW, Franses EI, Wang NHL. Effect of alcohol aggregation on the retention factors of chiral solutes with an amylose-based sorbent: Modeling and implications for the adsorption mechanism. J Chromatogr A 2014; 1328:52-65. [DOI: 10.1016/j.chroma.2013.12.078] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2013] [Revised: 12/11/2013] [Accepted: 12/26/2013] [Indexed: 11/29/2022]
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32
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Marley A, Connolly D. Determination of (R)-timolol in (S)-timolol maleate active pharmaceutical ingredient: Validation of a new supercritical fluid chromatography method with an established normal phase liquid chromatography method. J Chromatogr A 2014; 1325:213-20. [DOI: 10.1016/j.chroma.2013.12.011] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2013] [Revised: 10/27/2013] [Accepted: 12/04/2013] [Indexed: 10/25/2022]
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33
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On the effect of basic and acidic additives on the separation of the enantiomers of some basic drugs with polysaccharide-based chiral selectors and polar organic mobile phases. J Chromatogr A 2013; 1317:167-74. [DOI: 10.1016/j.chroma.2013.08.029] [Citation(s) in RCA: 70] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2013] [Revised: 08/02/2013] [Accepted: 08/07/2013] [Indexed: 11/21/2022]
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34
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Gao H, Kan T, Zhao S, Qian Y, Cheng X, Wu W, Wang X, Zheng L. Removal of anionic azo dyes from aqueous solution by functional ionic liquid cross-linked polymer. JOURNAL OF HAZARDOUS MATERIALS 2013; 261:83-90. [PMID: 23912074 DOI: 10.1016/j.jhazmat.2013.07.001] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2013] [Revised: 07/01/2013] [Accepted: 07/02/2013] [Indexed: 06/02/2023]
Abstract
A novel functional ionic liquid based cross-linked polymer (PDVB-IL) was synthesized from 1-aminoethyl-3-vinylimidazolium chloride and divinylbenzene for use as an adsorbent. The physicochemical properties of PDVB-IL were investigated by Fourier transform infrared spectroscopy, scanning electron microscopy and thermogravimetric analysis. The adsorptive capacity was investigated using anionic azo dyes of orange II, sunset yellow FCF, and amaranth as adsorbates. The maximum adsorption capacity could reach 925.09, 734.62, and 547.17 mg/g for orange II, sunset yellow FCF and amaranth at 25°C, respectively, which are much better than most of the other adsorbents reported earlier. The effect of pH value was investigated in the range of 1-8. The result shows that a low pH value is found to favor the adsorption of those anionic azo dyes. The adsorption kinetics and isotherms are well fitted by a pseudo second-order model and Langmuir model, respectively. The adsorption process is found to be dominated by physisorption. The introduction of functional ionic liquid moieties into cross-linked poly(divinylbenzene) polymer constitutes a new and efficient kind of adsorbent.
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Affiliation(s)
- Hejun Gao
- Key Laboratory of Colloid and Interface Chemistry, Shandong University, Ministry of Education, Jinan 250100, China; Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, China West Normal University, Nanchong 637000, China
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Tsui HW, Wang NHL, Franses EI. Chiral Recognition Mechanism of Acyloin-Containing Chiral Solutes by Amylose Tris[(S)-α-methylbenzylcarbamate]. J Phys Chem B 2013; 117:9203-16. [PMID: 23848510 DOI: 10.1021/jp404549t] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Hung-Wei Tsui
- School of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette,
Indiana 47907-2100, United States
| | - N.-H. Linda Wang
- School of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette,
Indiana 47907-2100, United States
| | - Elias I. Franses
- School of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette,
Indiana 47907-2100, United States
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36
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Tsui HW, Hwang MY, Ling L, Franses EI, Wang NHL. Retention models and interaction mechanisms of acetone and other carbonyl-containing molecules with amylose tris[(S)-α-methylbenzylcarbamate] sorbent. J Chromatogr A 2013; 1279:36-48. [DOI: 10.1016/j.chroma.2012.12.028] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2012] [Revised: 12/10/2012] [Accepted: 12/12/2012] [Indexed: 10/27/2022]
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Abstract
Chiral recognition phenomena play an important role in nature as well as analytical separation sciences. In separation sciences such as chromatography and capillary electrophoresis, enantiospecific interactions between the enantiomers of an analyte and the chiral selector are required in order to observe enantioseparations. Due to the large structural variety of chiral selectors applied, different mechanisms and structural features contribute to the chiral recognition process. This chapter briefly illustrates the current models of the enantiospecific recognition on the structural basics of various chiral selectors.
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Affiliation(s)
- Gerhard K E Scriba
- Department of Pharmaceutical/Medicinal Chemistry, Friedrich Schiller University Jena, Jena, Germany.
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Chankvetadze B. Recent developments on polysaccharide-based chiral stationary phases for liquid-phase separation of enantiomers. J Chromatogr A 2012; 1269:26-51. [DOI: 10.1016/j.chroma.2012.10.033] [Citation(s) in RCA: 329] [Impact Index Per Article: 27.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2012] [Revised: 10/11/2012] [Accepted: 10/15/2012] [Indexed: 10/27/2022]
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39
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Liu B, Zhou Y, Yang GS, Aboul-Enein HY. Enantioseparation of Four Organophosphonate Derivatives onN-(3,5-Dinitrobenzoyl)-l-leucine-n-Propylamide Stationary Phase by Molecular Modeling. Chirality 2012. [DOI: 10.1002/chir.22117] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Bing Liu
- Department of Chemistry; Xinxiang University; Xinxiang; People's Republic of China
| | - Yong Zhou
- Department of Chemistry; Xinxiang University; Xinxiang; People's Republic of China
| | - Guo-Sheng Yang
- School of Chemistry and Chemical Engineering; Shandong University; Jinan; People's Republic of China
| | - Hassan Y. Aboul-Enein
- Pharmaceutical and Medicinal Chemistry Department, Pharmaceutical and Drug Industries Research Division; National Research Centre; Cairo; Egypt
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40
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Lomsadze K, Vega ED, Salgado A, Crego AL, Scriba GK, Marina ML, Chankvetadze B. Separation of enantiomers of norephedrine by capillary electrophoresis using cyclodextrins as chiral selectors: Comparative CE and NMR studies. Electrophoresis 2012; 33:1637-47. [DOI: 10.1002/elps.201200062] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Ketevan Lomsadze
- Institute of Physical and Analytical Chemistry; School of Exact and Natural Sciences; Tbilisi State University; Tbilisi; Georgia
| | - Elena Domínguez Vega
- Department of Analytical Chemistry; Faculty of Chemistry; University of Alcalá; Madrid; Spain
| | - Antonio Salgado
- Department of Medicinal Chemistry; Centro Nacional de Investigaciones Oncológicas (CNIO); Madrid; Spain
| | - Antonio L. Crego
- Department of Analytical Chemistry; Faculty of Chemistry; University of Alcalá; Madrid; Spain
| | - Gerhard K.E. Scriba
- Department of Pharmaceutical Chemistry; Friedrich-Schiller-University Jena; Jena; Germany
| | - Maria Luisa Marina
- Department of Analytical Chemistry; Faculty of Chemistry; University of Alcalá; Madrid; Spain
| | - Bezhan Chankvetadze
- Institute of Physical and Analytical Chemistry; School of Exact and Natural Sciences; Tbilisi State University; Tbilisi; Georgia
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41
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Peluso P, Mamane V, Aubert E, Cossu S. High-performance liquid chromatography enantioseparation of atropisomeric 4,4'-bipyridines on polysaccharide-type chiral stationary phases: Impact of substituents and electronic properties. J Chromatogr A 2012; 1251:91-100. [PMID: 22771066 DOI: 10.1016/j.chroma.2012.06.035] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2012] [Revised: 06/08/2012] [Accepted: 06/13/2012] [Indexed: 11/25/2022]
Abstract
The high performance liquid chromatography (HPLC) enantioseparation of eleven atropisomeric 4,4'-bipyridines was performed in the normal and polar organic phase mode using three cellulose-based chiral stationary phases (CSPs), namely Lux Cellulose-1, Lux Cellulose-2, Lux Cellulose-4, and two amylose-based CSPs, Chiralpak AD-H and Lux Amylose-2. n-Hexane/2-propanol mixtures and pure ethanol were employed as mobile phases. The combined use of Chiralpak AD-H and Lux Cellulose-2 allowed to enantioseparate all the considered bipyridines. Ten bipyridines were enantioseparated at the multimilligram level allowing the elution sequence determination of the enantiomers as well as their future use for the preparation of homochiral metal organic frameworks (MOFs). Moreover, the performance of the CSPs regarding the same bipyridine was different and dependent on the backbone as well as on the side chain of the polymer. The impact of substitution pattern, shape and electronic properties of the molecules on the separation behavior was investigated through the evaluation of retention factors (k), separation factors (α), resolution (R(s)) and molecular properties determined using density functional theory (DFT) calculations. In this regard, the substituents at the 3,3',5,5' positions of the 4,4'-bipyridyl rings exhibited a pivotal role on the enantioseparation.
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Affiliation(s)
- Paola Peluso
- Istituto di Chimica Biomolecolare ICB CNR - UOS di Sassari, Traversa La Crucca 3, Regione Baldinca, I-07100 Li Punti, Sassari, Italy.
| | - Victor Mamane
- Equipe Synthèse Organométallique et Réactivité (SOR), Laboratoire SRSMC, UMR CNRS-UHP 7565, Université de Lorraine, BP 70239, Bd des Aiguillettes, 54506 Vandoeuvre-les-Nancy, France.
| | - Emmanuel Aubert
- Cristallographie, Résonance Magnétique et Modélisations (CRM(2)), UMR CNRS-UHP 7036, Université de Lorraine, BP 70239, Bd des Aiguillettes, 54506 Vandoeuvre-les-Nancy, France
| | - Sergio Cossu
- Dipartimento di Scienze Molecolari e Nanosistemi, Università Ca' Foscari di Venezia, Dorsoduro 2137, I-30123 Venezia, Italy
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Nelander H, Andersson S, Öhlén K. Evaluation of the chiral recognition properties as well as the column performance of four chiral stationary phases based on cellulose (3,5-dimethylphenylcarbamate) by parallel HPLC and SFC. J Chromatogr A 2011; 1218:9397-405. [DOI: 10.1016/j.chroma.2011.10.082] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2011] [Revised: 10/27/2011] [Accepted: 10/28/2011] [Indexed: 11/16/2022]
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Tsui HW, Willing JN, Kasat RB, Wang NHL, Franses EI. Infrared Spectroscopy and Molecular Simulations of a Polymeric Sorbent and Its Enantioselective Interactions with Benzoin Enantiomers. J Phys Chem B 2011; 115:12785-800. [PMID: 21942429 DOI: 10.1021/jp2065248] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Hung-Wei Tsui
- School of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette, Indiana 47907-2100, United States
| | - Jonathan N. Willing
- School of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette, Indiana 47907-2100, United States
| | - Rahul B. Kasat
- School of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette, Indiana 47907-2100, United States
| | - Nien-Hwa Linda Wang
- School of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette, Indiana 47907-2100, United States
| | - Elias I. Franses
- School of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette, Indiana 47907-2100, United States
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46
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Insights into chiral recognition mechanisms in supercritical fluid chromatography. I. Non-enantiospecific interactions contributing to the retention on tris-(3,5-dimethylphenylcarbamate) amylose and cellulose stationary phases. J Chromatogr A 2011; 1218:2019-32. [DOI: 10.1016/j.chroma.2010.11.084] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2010] [Revised: 11/06/2010] [Accepted: 11/29/2010] [Indexed: 11/23/2022]
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47
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West C, Guenegou G, Zhang Y, Morin-Allory L. Insights into chiral recognition mechanisms in supercritical fluid chromatography. II. Factors contributing to enantiomer separation on tris-(3,5-dimethylphenylcarbamate) of amylose and cellulose stationary phases. J Chromatogr A 2011; 1218:2033-57. [DOI: 10.1016/j.chroma.2010.11.085] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2010] [Revised: 11/06/2010] [Accepted: 11/29/2010] [Indexed: 10/18/2022]
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48
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Li Y, Liu D, Wang P, Zhou Z. Computational study of enantioseparation by amylose tris(3,5-dimethylphenylcarbamate)-based chiral stationary phase. J Sep Sci 2011; 33:3245-55. [PMID: 20839235 DOI: 10.1002/jssc.201000266] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
The mechanism of chiral separation on amylose tris(3,5-dimethylphenylcarbamate) is studied with docking simulations of enantiomers by molecular dynamics. All-atom models of amylose tris(3,5-dimethylphenylcarbamate) on the modified silica gel surface were constructed for the docking simulations of metalaxyl and benalaxyl. The elution orders and energetic differences were also predicted based on the intermolecular interactions, which were in agreement with the experimental results. The radial distribution function was employed to analyze the structural features of the enantiomer-chiral stationary phase complex and used to elucidate the mechanism of chiral separation. The separation of metalaxyl and benalaxyl is mainly controlled by the hydrogen bond. And the binding sites had slight differences for the pair of enantiomers, but obvious differences between different chemicals.
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Affiliation(s)
- Yangyang Li
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing, PR China
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49
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Enantioselective adsorption and diffusion of S-/R-glycidol in homochiral zeolites: A molecular simulation study. J Memb Sci 2011. [DOI: 10.1016/j.memsci.2010.10.038] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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50
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Affiliation(s)
- Timothy J. Ward
- Millsaps College, 1701 N. State Street, Box 150306, Jackson, Mississippi 39210
| | - Karen D. Ward
- Millsaps College, 1701 N. State Street, Box 150306, Jackson, Mississippi 39210
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