1
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Kumar Sharma A, Som S, Chopra D, Srivastava A. Modulating Helix-Preference of an Axially-Twisted Molecular Scaffold Through Diastereomeric Salt Formation with Tartaric Acid Stereoisomers. Chemistry 2024; 30:e202401956. [PMID: 38880769 DOI: 10.1002/chem.202401956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2024] [Revised: 06/12/2024] [Accepted: 06/13/2024] [Indexed: 06/18/2024]
Abstract
Herein, we designed a chiral, axially-twisted molecular scaffold (ATMS) using pyridine-2,6-dicarboxamide (PDC) unit as pivot, chiral trans-cyclohexanediamine (CHDA) residues as linkers, and pyrene residues as fluorescent reporters. R,R-ATMS exclusively adopted M-helicity and produced differential response in UV-vis, fluorescence, and NMR upon addition of tartaric acid (TA) stereoisomers allowing naked-eye detection and enantiomeric content determination. Circular dichroism (CD) profile of R,R-ATMS underwent unique changes during titration with TA stereoisomers - while loss of CD signal at 345 nm was observed with equimolar D-TA and meso-TA, inversion was seen with equimolar L-TA. Temperature increase weakened these interactions to partially recover the original CD signature of R,R-ATMS. 2D NMR studies also indicated the significant structural changes in R,R-ATMS in the solution state upon addition of L-TA. Single crystal X-ray diffraction (SCXRD) studies on the crystals of the R,R-ATMS⊃D-TA salt revealed the interacting partners stacked in arrays and ATMS molecules stabilized by π-π stacking between its PDC and pyrene residues. Contrastingly, tightly-packed supramolecular cages comprised of four molecules each of R,R-ATMS and L-TA were seen in R,R-ATMS⊃L-TA salt, and the ATMS molecules contorted to achieve CH-π interactions between its pyrene residues. These results may have implications in modulating the helicity of topologically-similar larger biomolecules.
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Affiliation(s)
- Akash Kumar Sharma
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal (IISER Bhopal), Bhopal Bypass Road, 462066, Bhauri, Bhopal, India
| | - Shubham Som
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal (IISER Bhopal), Bhopal Bypass Road, 462066, Bhauri, Bhopal, India
| | - Deepak Chopra
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal (IISER Bhopal), Bhopal Bypass Road, 462066, Bhauri, Bhopal, India
| | - Aasheesh Srivastava
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal (IISER Bhopal), Bhopal Bypass Road, 462066, Bhauri, Bhopal, India
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2
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Recognition of Chiral Carboxylates by Synthetic Receptors. Molecules 2021; 26:molecules26216417. [PMID: 34770825 PMCID: PMC8587759 DOI: 10.3390/molecules26216417] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 10/19/2021] [Accepted: 10/21/2021] [Indexed: 11/17/2022] Open
Abstract
Recognition of anionic species plays a fundamental role in many essential chemical, biological, and environmental processes. Numerous monographs and review papers on molecular recognition of anions by synthetic receptors reflect the continuing and growing interest in this area of supramolecular chemistry. However, despite the enormous progress made over the last 20 years in the design of these molecules, the design of receptors for chiral anions is much less developed. Chiral recognition is one of the most subtle types of selectivity, and it requires very precise spatial organization of the receptor framework. At the same time, this phenomenon commonly occurs in many processes present in nature, often being their fundamental step. For these reasons, research directed toward understanding the chiral anion recognition phenomenon may lead to the identification of structural patterns that enable increasingly efficient receptor design. In this review, we present the recent progress made in the area of synthetic receptors for biologically relevant chiral carboxylates.
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3
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Costales P, Ríos-Lombardía N, Lorenzo-Herrero S, Morís F, González-Sabín J. Novel chiral naphthalimide-cycloalkanediamine conjugates: Design, synthesis and antitumor activity. Bioorg Chem 2021; 112:104859. [PMID: 33836453 DOI: 10.1016/j.bioorg.2021.104859] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 02/18/2021] [Accepted: 03/22/2021] [Indexed: 10/21/2022]
Abstract
A novel series of enantiopure naphthalimide-cycloalkanediamine conjugates were designed, synthetized and evaluated for in vitro cytotoxicity against human colon adenocarcinoma (LoVo), human lung adenocarcinoma (A549), human cervical carcinoma (Hela) and human promyelocytic leukemia cell lines (HL-60). The cytotoxicity of the compounds was highly dependent on size and relative stereochemistry of the cycloalkyl ring as well as length of the spacer. By contrast, any kind of enantioselection was observed for each pair of enantiomers. Flow cytometric analysis indicated that compounds 22 and 23 could effectively induce G2/M arrest in the four previous cell lines despite a mild apoptotic effect.
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Affiliation(s)
- Paula Costales
- EntreChem SL, Vivero Ciencias de la Salud, Santo Domingo de Guzmán, 33011 Oviedo, Spain
| | | | - Seila Lorenzo-Herrero
- EntreChem SL, Vivero Ciencias de la Salud, Santo Domingo de Guzmán, 33011 Oviedo, Spain
| | - Francisco Morís
- EntreChem SL, Vivero Ciencias de la Salud, Santo Domingo de Guzmán, 33011 Oviedo, Spain
| | - Javier González-Sabín
- EntreChem SL, Vivero Ciencias de la Salud, Santo Domingo de Guzmán, 33011 Oviedo, Spain.
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4
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Malinowska M, Jarzyński S, Pieczonka A, Rachwalski M, Leśniak S, Zawisza A. Optically Pure Aziridin-2-yl Methanols as Readily Available 1H NMR Sensors for Enantiodiscrimination of α-Racemic Carboxylic Acids Containing Tertiary or Quaternary Stereogenic Centers. J Org Chem 2020; 85:11794-11801. [PMID: 32805106 PMCID: PMC7506949 DOI: 10.1021/acs.joc.0c01564] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
![]()
Enantiopure
aziridin-2-yl methanols 3–7 are used
as highly effective sensors for enantiodiscrimination
of α-racemic carboxylic acids containing tertiary or quaternary
stereogenic centers. A linear correlation between theoretical and
observed % ee values for CSA-3 and enantiomerically enriched
samples of mandelic acid has been observed, indicating the possible
application of these compounds in the ee determination. The free NH
and OH groups in 3–7 ensure good
recognition.
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Affiliation(s)
- Martyna Malinowska
- Department of Organic and Applied Chemistry, University of Łódź, Tamka 12, 91-403 Łódź, Poland
| | - Szymon Jarzyński
- Department of Organic and Applied Chemistry, University of Łódź, Tamka 12, 91-403 Łódź, Poland
| | - Adam Pieczonka
- Department of Organic and Applied Chemistry, University of Łódź, Tamka 12, 91-403 Łódź, Poland
| | - Michał Rachwalski
- Department of Organic and Applied Chemistry, University of Łódź, Tamka 12, 91-403 Łódź, Poland
| | - Stanisław Leśniak
- Department of Organic and Applied Chemistry, University of Łódź, Tamka 12, 91-403 Łódź, Poland
| | - Anna Zawisza
- Department of Organic and Applied Chemistry, University of Łódź, Tamka 12, 91-403 Łódź, Poland
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5
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Huang H, Bian G, Zong H, Wang Y, Yang S, Yue H, Song L, Fan H. Chiral Sensor for Enantiodiscrimination of Varied Acids. Org Lett 2016; 18:2524-7. [DOI: 10.1021/acs.orglett.6b00088] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Huayin Huang
- The
Key Laboratory of Coal to Ethylene Glycol and Its Related Technology,
Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
| | - Guangling Bian
- The
Key Laboratory of Coal to Ethylene Glycol and Its Related Technology,
Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
| | - Hua Zong
- The
Key Laboratory of Coal to Ethylene Glycol and Its Related Technology,
Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
| | - Yabai Wang
- The
Key Laboratory of Coal to Ethylene Glycol and Its Related Technology,
Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
| | - Shiwei Yang
- The
Key Laboratory of Coal to Ethylene Glycol and Its Related Technology,
Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
| | - Huifeng Yue
- The
Key Laboratory of Coal to Ethylene Glycol and Its Related Technology,
Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
| | - Ling Song
- The
Key Laboratory of Coal to Ethylene Glycol and Its Related Technology,
Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
| | - Hongjun Fan
- The
State Key Lab of Molecular Reaction Dynamics, Dalian Institute of
Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
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6
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Li G, Cao J, Zong W, Lei X, Tan R. Enantiodiscrimination of carboxylic acids using the diphenylprolinol NMR chiral solvating agents. Org Chem Front 2016. [DOI: 10.1039/c5qo00264h] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Enantiopure diphenylprolinols have been developed as effective and practical NMR chiral solvating agents for the enantiodiscrimination of diverse α-carboxylic acids.
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Affiliation(s)
- Gaowei Li
- Institute of Functional Biomolecules
- State Key Laboratory of Pharmaceutical Biotechnology
- Nanjing University
- Nanjing 210093
- P. R. China
| | - Jiangming Cao
- Institute of Functional Biomolecules
- State Key Laboratory of Pharmaceutical Biotechnology
- Nanjing University
- Nanjing 210093
- P. R. China
| | - Wen Zong
- College of Chemistry & Materials Engineering
- Wenzhou University
- Wenzhou 325035
- P. R. China
| | - Xinxiang Lei
- College of Chemistry & Materials Engineering
- Wenzhou University
- Wenzhou 325035
- P. R. China
| | - Renxiang Tan
- Institute of Functional Biomolecules
- State Key Laboratory of Pharmaceutical Biotechnology
- Nanjing University
- Nanjing 210093
- P. R. China
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7
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Laaksonen T, Heikkinen S, Wähälä K. Synthesis of Tertiary and Quaternary Amine Derivatives from Wood Resin as Chiral NMR Solvating Agents. Molecules 2015; 20:20873-86. [PMID: 26610454 PMCID: PMC6332576 DOI: 10.3390/molecules201119732] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2015] [Revised: 11/03/2015] [Accepted: 11/08/2015] [Indexed: 11/25/2022] Open
Abstract
Chiral tertiary and quaternary amine solvating agents for NMR spectroscopy were synthesized from the wood resin derivative (+)-dehydroabietylamine (2). The resolution of enantiomers of model compounds [Mosher’s acid (3) and its n-Bu4N salt (4)] (guests) by (+)-dehydroabietyl-N,N-dimethylmethanamine (5) and its ten different ammonium salts (hosts) was studied. The best results with 3 were obtained using 5 while with 4 the best enantiomeric resolution was obtained using (+)-dehydroabietyl-N,N-dimethylmethanaminium bis(trifluoromethane-sulfonimide) (6). The compounds 5 and 6 showed a 1:1 complexation behaviour between the host and guest. The capability of 5 and 6 to recognize the enantiomers of various α-substituted carboxylic acids and their n-Bu4N salts in enantiomeric excess (ee) determinations was demonstrated. A modification of the RES-TOCSY NMR pulse sequence is described, allowing the enhancement of enantiomeric discrimination when the resolution of multiplets is insufficient.
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Affiliation(s)
- Tiina Laaksonen
- Department of Chemistry, University of Helsinki, A.I. Virtasen aukio 1, P. O. Box 55, FI-00014, Helsinki 00100, Finland.
| | - Sami Heikkinen
- Department of Chemistry, University of Helsinki, A.I. Virtasen aukio 1, P. O. Box 55, FI-00014, Helsinki 00100, Finland.
| | - Kristiina Wähälä
- Department of Chemistry, University of Helsinki, A.I. Virtasen aukio 1, P. O. Box 55, FI-00014, Helsinki 00100, Finland.
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8
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Uccello Barretta G, Balzano F, Aiello F, Nardelli F, Ciogli A, Calcaterra A, Botta B. Covalently assembled resorcin[4]arenes and molecular tweezers: a chiral recognition rationale by NMR. Supramol Chem 2015. [DOI: 10.1080/10610278.2015.1111373] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
| | - Federica Balzano
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, Pisa, Italy
| | - Federica Aiello
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, Pisa, Italy
| | - Francesca Nardelli
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, Pisa, Italy
| | - Alessia Ciogli
- Dipartimento di Chimica e Tecnologie del Farmaco, Università di Roma “La Sapienza”, Roma, Italy
| | - Andrea Calcaterra
- Dipartimento di Chimica e Tecnologie del Farmaco, Università di Roma “La Sapienza”, Roma, Italy
| | - Bruno Botta
- Dipartimento di Chimica e Tecnologie del Farmaco, Università di Roma “La Sapienza”, Roma, Italy
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9
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Laaksonen T, Heikkinen S, Wähälä K. Synthesis and applications of secondary amine derivatives of (+)-dehydroabietylamine in chiral molecular recognition. Org Biomol Chem 2015; 13:10548-55. [DOI: 10.1039/c5ob01667c] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
(+)-Dehydroabietylamine (1a), the novel derivatives (2a–6a) and their NTf2 salts (1b–6b) were tested as chiral NMR solvating agents for the resolution of enantiomers of Mosher's acid and other carboxylic acids, and their n-Bu4N salts.
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Affiliation(s)
- Tiina Laaksonen
- Department of Chemistry
- University of Helsinki
- FI-00014 Helsinki
- Finland
| | - Sami Heikkinen
- Department of Chemistry
- University of Helsinki
- FI-00014 Helsinki
- Finland
| | - Kristiina Wähälä
- Department of Chemistry
- University of Helsinki
- FI-00014 Helsinki
- Finland
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10
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Silva MS, Pietrobom D. Chiral discrimination of β-telluride carboxylic acids by NMR spectroscopy. NEW J CHEM 2015. [DOI: 10.1039/c5nj01877c] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A simple and effective procedure for the chiral discrimination of β-telluride carboxylic acids by 1H and 125Te NMR spectroscopy is presented.
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Affiliation(s)
- Marcio S. Silva
- Centro de Ciências Naturais e Humanas – CCNH
- Universidade Federal do ABC
- Santo André-SP
- Brazil
| | - Daniel Pietrobom
- Centro de Ciências Naturais e Humanas – CCNH
- Universidade Federal do ABC
- Santo André-SP
- Brazil
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11
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Roof shape amines: synthesis and application as NMR chiral solvating agents for discrimination of α-functionalized acids. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.05.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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12
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Tanaka K, Iwashita T, Sasaki C, Takahashi H. Ring-expanded chiral rhombamine macrocycles for efficient NMR enantiodiscrimination of carboxylic acid derivatives. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.tetasy.2014.03.009] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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13
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Bian G, Fan H, Yang S, Yue H, Huang H, Zong H, Song L. A Chiral Bisthiourea as a Chiral Solvating Agent for Carboxylic Acids in the Presence of DMAP. J Org Chem 2013; 78:9137-42. [DOI: 10.1021/jo4013546] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Guangling Bian
- The
State Key Lab of Structural Chemistry and The Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China
| | - Hongjun Fan
- The
State Key Lab of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P. R. China
| | - Shiwei Yang
- The
State Key Lab of Structural Chemistry and The Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China
| | - Huifeng Yue
- The
State Key Lab of Structural Chemistry and The Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China
| | - Huayin Huang
- The
State Key Lab of Structural Chemistry and The Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China
| | - Hua Zong
- The
State Key Lab of Structural Chemistry and The Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China
| | - Ling Song
- The
State Key Lab of Structural Chemistry and The Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China
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14
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Yang XF, Ning R, Xie LJ, Cui Y, Zhang YL, Zheng LY. Macrocyclic Compound as NMR Chiral Solvating Agent for Determination of Enantiomeric Excess of Carboxylic Acids. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2013. [DOI: 10.1246/bcsj.20130092] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Xiao-feng Yang
- School of Chemistry and Chemical Engineering, University of Jinan
| | - Rui Ning
- School of Chemistry and Chemical Engineering, University of Jinan
| | - Li-jun Xie
- School of Chemistry and Chemical Engineering, University of Jinan
| | - Yu Cui
- School of Chemistry and Chemical Engineering, University of Jinan
| | - Yong-ling Zhang
- School of Chemistry and Chemical Engineering, University of Jinan
| | - Lu-yi Zheng
- School of Chemistry and Chemical Engineering, University of Jinan
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15
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Uccello-Barretta G, Balzano F. Chiral NMR Solvating Additives for Differentiation of Enantiomers. Top Curr Chem (Cham) 2013; 341:69-131. [DOI: 10.1007/128_2013_445] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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16
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Altava B, Isabel Burguete M, Carbó N, Luis SV, Martí-Centelles V, Vicent C. Bis(amino amides) derived from natural amino acids as chiral receptors for N-protected dicarboxylic amino acids. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2012.10.099] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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17
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Periasamy M, Dalai M, Padmaja M. Chiral trans-1,2-diaminocyclohexane derivatives as chiral solvating agents for carboxylic acids. J CHEM SCI 2011. [DOI: 10.1007/s12039-010-0090-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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18
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Wenzel TJ, Chisholm CD. Using NMR spectroscopic methods to determine enantiomeric purity and assign absolute stereochemistry. PROGRESS IN NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY 2011; 59:1-63. [PMID: 21600355 DOI: 10.1016/j.pnmrs.2010.07.003] [Citation(s) in RCA: 118] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2010] [Accepted: 07/28/2010] [Indexed: 05/30/2023]
Affiliation(s)
- Thomas J Wenzel
- Department of Chemistry, Bates College, Lewiston, Maine 04240, USA.
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19
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Gualandi A, Grilli S, Savoia D, Kwit M, Gawroński J. C-hexaphenyl-substituted trianglamine as a chiral solvating agent for carboxylic acids. Org Biomol Chem 2011; 9:4234-41. [PMID: 21499627 DOI: 10.1039/c0ob01192d] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Chiral hexaazamacrocycles with a trianglamine structure and C(3)-symmetry, containing six ring substituents and twelve stereocenters have been tested as chiral solvating agents (CSAs) for α-substituted carboxylic acids. Excellent results have been obtained with a hexaphenyl-substituted macrocycle. The optimal ratio between the macrocycle and racemic acid, allowing for baseline separation of the enantiomers' signals in the (1)H NMR spectrum, was dependent on the type of acid, in particular on its degree of acidity. The analyte and the CSA could be separated and recovered by a simple acid-base extraction and reused without purification. The conformations of the free and protonated hexaamino macrocycles were inferred by CD spectroscopic studies and DFT calculations.
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Affiliation(s)
- Andrea Gualandi
- Dipartimento di Chimica G. Ciamician, Alma Mater Studiorum Università di Bologna, via Selmi 2, 40126, Bologna, Italy.
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20
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Naziroglu HN, Durmaz M, Bozkurt S, Sirit A. Application of L-proline derivatives as chiral shift reagents for enantiomeric recognition of carboxylic acids. Chirality 2011; 23:463-71. [DOI: 10.1002/chir.20948] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2010] [Accepted: 12/23/2010] [Indexed: 11/10/2022]
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21
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Bozkurt S, Durmaz M, Naziroglu HN, Yilmaz M, Sirit A. Amino alcohol based chiral solvating agents: synthesis and applications in the NMR enantiodiscrimination of carboxylic acids. ACTA ACUST UNITED AC 2011. [DOI: 10.1016/j.tetasy.2011.02.028] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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22
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Tanaka K, Nakai Y, Takahashi H. Efficient NMR chiral discrimination of carboxylic acids using rhombamine macrocycles as chiral shift reagent. ACTA ACUST UNITED AC 2011. [DOI: 10.1016/j.tetasy.2011.01.013] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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23
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Alatorre-Santamaría S, Gotor-Fernández V, Gotor V. Chemoenzymatic Synthesis of Optically Active cis- and trans-2-(1H-Imidazol-1-yl)cycloalkanamines. European J Org Chem 2010. [DOI: 10.1002/ejoc.201001299] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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24
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Durmaz M, Yilmaz M, Sirit A. Synthesis of chiral calix[4]arenes bearing aminonaphthol moieties and their use in the enantiomeric recognition of carboxylic acids. Org Biomol Chem 2010; 9:571-80. [PMID: 21063630 DOI: 10.1039/c0ob00399a] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two armed chiral calix[4]arenes 8-16 functionalized at the lower rim with chiral aminonaphthol units have been prepared and the structures of these receptors characterized by FTIR, (1)H, and (13)C, DEPT and COSY NMR spectroscopy and elemental analysis. The enantioselective recognition of these receptors with various carboxylic acids has been studied by (1)H NMR and UV/Vis spectroscopy. The receptors exhibited different chiral recognition abilities towards the enantiomers of racemic materials and formed 2 : 1 or 1 : 1 complexes between host and guest. It was also demonstrated that chiral calix[4]arenes 9 and 16 could be used as chiral NMR solvating agents to determine the enantiomeric purity of mandelic acid.
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Affiliation(s)
- Mustafa Durmaz
- Department of Chemistry, Selçuk University, 42099, Konya, Turkey
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Chiral bis(amino amides) as chiral solvating agents for enantiomeric excess determination of α-hydroxy and arylpropionic acids. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/j.tetasy.2010.05.010] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
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Satishkumar S, Periasamy M. Chiral recognition of carboxylic acids by Tröger’s base derivatives. ACTA ACUST UNITED AC 2009. [DOI: 10.1016/j.tetasy.2009.08.030] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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An efficient chemoenzymatic method to prepare optically active primary–tertiary trans-cycloalkane-1,2-diamines. Tetrahedron 2009. [DOI: 10.1016/j.tet.2009.07.035] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Synthesis of new chiral imidazolium salts derived from amino acids: their evaluation in chiral molecular recognition. ACTA ACUST UNITED AC 2009. [DOI: 10.1016/j.tetasy.2009.03.028] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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‘Calixarene-like’ chiral amine macrocycles as novel chiral shift reagents for carboxylic acids. ACTA ACUST UNITED AC 2009. [DOI: 10.1016/j.tetasy.2008.11.018] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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González-Sabín J, Rebolledo F, Gotor V. trans-Cyclopentane-1,2-diamine: the second youth of the forgotten diamine. Chem Soc Rev 2009; 38:1916-25. [DOI: 10.1039/b818679k] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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