1
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Patel AK, Joseph D, Atreya HS, Suryaprakash N. A One-Dimensional Phase-Modulated (PM) NMR Experiment for Differentiating Spin Systems in Small Molecules Mixtures: With Application to Chiral Discrimination and Bicomponent Organic Systems. Anal Chem 2022; 94:16555-16559. [PMID: 36036726 DOI: 10.1021/acs.analchem.2c00565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A one-dimensional phase-modulated NMR experiment, which distinguishes the partially resolved peaks and accelerates the data acquisition due to reduced dimensionality, is reported for differentiating spin systems, with application to chiral discrimination. The multifarious utility of the technique is demonstrated in plenteous examples.
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Affiliation(s)
- Arun Kumar Patel
- Solid State and Structural Chemistry Unit, NMR Research Centre, Indian Institute of Science, Bangalore 560012, India
| | - David Joseph
- Solid State and Structural Chemistry Unit, NMR Research Centre, Indian Institute of Science, Bangalore 560012, India
| | - Hanudatta S Atreya
- Solid State and Structural Chemistry Unit, NMR Research Centre, Indian Institute of Science, Bangalore 560012, India
| | - N Suryaprakash
- Solid State and Structural Chemistry Unit, NMR Research Centre, Indian Institute of Science, Bangalore 560012, India
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2
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Li GW, Wang XJ, Cui DD, Zhang YF, Xu RY, Shi SH, Liu LT, Wang MC, Liu HM, Lei XX. Azaheterocyclic diphenylmethanol chiral solvating agents for the NMR chiral discrimination of alpha-substituted carboxylic acids. RSC Adv 2020; 10:34605-34611. [PMID: 35514411 PMCID: PMC9056771 DOI: 10.1039/d0ra06312f] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Accepted: 08/24/2020] [Indexed: 12/02/2022] Open
Abstract
A series of small-membered heterocycle probes, so-called azaheterocycle-containing diphenylmethanol chiral solvating agents (CSAs), have been developed for NMR enantiodiscrimination. These chiral sensors were readily synthesized were inexpensive and efficiently used for the chiral analysis of alpha-substituted carboxylic acids. The sensing method was operationally simple and the processing was straightforward. Notably, we propose (S)-aziridinyl diphenylmethanol as a promising CSA, which has excellent chiral discriminating properties and offers multiple detectable possibilities pertaining to the 1H NMR signals of diagnostic split protons (including 25 examples, up to 0.194 ppm, 77.6 Hz). Its ability to detect the molecular recognition of fluorinated carboxylic acids were further investigated, with a good level of discrimination via the 19F NMR spectroscopic analysis. In addition, an accurate enantiomeric excess (ee) analysis of the p-methoxyl-mandelic acid with different optical compositions have been calculated based on the integration of well-separated proton signals.
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Affiliation(s)
- Gao-Wei Li
- College of Chemistry and Chemical Engineering and Henan Engineering Laboratory of Green Synthesis for Pharmaceuticals, Shangqiu Normal University Shangqiu 476000 P. R. China
- School of Pharmaceutical Sciences, Zhengzhou University Zhengzhou 450001 P. R. China
| | - Xiao-Juan Wang
- College of Chemistry and Chemical Engineering and Henan Engineering Laboratory of Green Synthesis for Pharmaceuticals, Shangqiu Normal University Shangqiu 476000 P. R. China
| | - Dan-Dan Cui
- College of Chemistry and Chemical Engineering and Henan Engineering Laboratory of Green Synthesis for Pharmaceuticals, Shangqiu Normal University Shangqiu 476000 P. R. China
| | - Yu-Fei Zhang
- College of Chemistry and Chemical Engineering and Henan Engineering Laboratory of Green Synthesis for Pharmaceuticals, Shangqiu Normal University Shangqiu 476000 P. R. China
| | - Rong-Yao Xu
- College of Chemistry and Chemical Engineering and Henan Engineering Laboratory of Green Synthesis for Pharmaceuticals, Shangqiu Normal University Shangqiu 476000 P. R. China
| | - Shuai-Hua Shi
- College of Chemistry and Chemical Engineering and Henan Engineering Laboratory of Green Synthesis for Pharmaceuticals, Shangqiu Normal University Shangqiu 476000 P. R. China
| | - Lan-Tao Liu
- College of Chemistry and Chemical Engineering and Henan Engineering Laboratory of Green Synthesis for Pharmaceuticals, Shangqiu Normal University Shangqiu 476000 P. R. China
| | - Min-Can Wang
- School of Pharmaceutical Sciences, Zhengzhou University Zhengzhou 450001 P. R. China
| | - Hong-Min Liu
- School of Pharmaceutical Sciences, Zhengzhou University Zhengzhou 450001 P. R. China
| | - Xin-Xiang Lei
- School of Pharmaceutical Sciences, South-Central University for Nationalities Wuhan 430074 P. R. China
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3
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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
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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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4
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Jang S, Kim H. A Gallium-based Chiral Solvating Agent Enables the Use of 1H NMR Spectroscopy to Differentiate Chiral Alcohols. iScience 2019; 19:425-435. [PMID: 31421597 PMCID: PMC6704394 DOI: 10.1016/j.isci.2019.07.051] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Revised: 07/09/2019] [Accepted: 07/30/2019] [Indexed: 12/18/2022] Open
Abstract
In situ, direct 1H NMR chiral analysis by using chiral solvating agents is a convenient and efficient analytical technique. Here we developed a Ga-based chiral anionic metal complex for 1H NMR chiral analysis of alcohols. Utilizing the optimal pKa value, the Ga complex was able to differentiate 1H NMR signals of each (R)- and (S)-enantiomer of alcohols, measured at room temperature. This direct 1H NMR chiral analysis of alcohols was used to rapidly determine enantiomeric excess and conversion in a kinetic resolution and an asymmetric synthesis.
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Affiliation(s)
- Sumin Jang
- Department of Chemistry, Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Hyunwoo Kim
- Department of Chemistry, Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea.
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5
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Marques NB, Jacob RG, Perin G, Lenardão EJ, Alves D, Silva MS. NMR chiral discrimination of chalcogen containing secondary alcohols. Chirality 2018; 31:41-51. [DOI: 10.1002/chir.23030] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Revised: 09/03/2018] [Accepted: 10/08/2018] [Indexed: 01/09/2023]
Affiliation(s)
- Naiade B.G. Marques
- Laboratório de Ressonância Magnética Nuclear, Centro de Ciências Naturais e Humanas (CCNH); Universidade Federal do ABC; Santo André Brazil
| | - Raquel G. Jacob
- Laboratório de Síntese Orgânica Limpa (LASOL), Centro de Ciências Químicas, Farmacêuticas e de Alimentos (CCQFA); Universidade Federal de Pelotas (UFPel); Capão do Leão Brazil
| | - Gelson Perin
- Laboratório de Síntese Orgânica Limpa (LASOL), Centro de Ciências Químicas, Farmacêuticas e de Alimentos (CCQFA); Universidade Federal de Pelotas (UFPel); Capão do Leão Brazil
| | - Eder J. Lenardão
- Laboratório de Síntese Orgânica Limpa (LASOL), Centro de Ciências Químicas, Farmacêuticas e de Alimentos (CCQFA); Universidade Federal de Pelotas (UFPel); Capão do Leão Brazil
| | - Diego Alves
- Laboratório de Síntese Orgânica Limpa (LASOL), Centro de Ciências Químicas, Farmacêuticas e de Alimentos (CCQFA); Universidade Federal de Pelotas (UFPel); Capão do Leão Brazil
| | - Márcio S. Silva
- Laboratório de Síntese Orgânica Limpa (LASOL), Centro de Ciências Químicas, Farmacêuticas e de Alimentos (CCQFA); Universidade Federal de Pelotas (UFPel); Capão do Leão Brazil
- Laboratório de Ressonância Magnética Nuclear, Centro de Ciências Naturais e Humanas (CCNH); Universidade Federal do ABC; Santo André Brazil
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6
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Seo MS, Jang S, Kim H. A chiral aluminum solvating agent (CASA) for 1H NMR chiral analysis of alcohols at low temperature. Chem Commun (Camb) 2018; 54:6804-6807. [DOI: 10.1039/c8cc00574e] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A chiral aluminum solvating agent (CASA) was demonstrated to be a general and efficient reagent for 1H NMR chiral analysis of alcohols.
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Affiliation(s)
- Min-Seob Seo
- Department of Chemistry
- Korea Advanced Institute of Science and Technology (KAIST)
- Daejeon 34141
- Korea
| | - Sumin Jang
- Department of Chemistry
- Korea Advanced Institute of Science and Technology (KAIST)
- Daejeon 34141
- Korea
| | - Hyunwoo Kim
- Department of Chemistry
- Korea Advanced Institute of Science and Technology (KAIST)
- Daejeon 34141
- Korea
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7
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Lazzeretti P. Chiral discrimination in nuclear magnetic resonance spectroscopy. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2017; 29:443001. [PMID: 28786393 DOI: 10.1088/1361-648x/aa84d5] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Chirality is a fundamental property of molecules whose spatial symmetry is characterized by the absence of improper rotations, making them not superimposable to their mirror image. Chiral molecules constitute the elementary building blocks of living species and one enantiomer is favoured in general (e.g. L-aminoacids and D-sugars pervade terrestrial homochiral biochemistry) because most chemical reactions producing natural substances are enantioselective. Since the effect of chiral chemicals and drugs on living beings can be markedly different between enantiomers, the quest for practical spectroscopical methods to scrutinize chirality is an issue of great importance and interest. Nuclear magnetic resonance (NMR) is a topmost analytical technique, but spectrometers currently used are 'blind' to chirality, i.e. unable to discriminate the two mirror-image forms of a chiral molecule, because, in the absence of a chiral solvent, the spectral parameters, chemical shifts and spin-spin coupling constants are identical for enantiomers. Therefore, the development of new procedures for routine chiral recognition would offer basic support to scientists. However, in the presence of magnetic fields, a distinction between true and false chirality is mandatory. The former epitomizes natural optical activity, which is rationalized by a time-even pseudoscalar, i.e. the trace of a second-rank tensor, the mixed electric dipole/magnetic dipole polarizability. The Faraday effect, magnetic circular dichroism and magnetic optical activity are instead related to a time-odd axial vector. The present review summarizes recent theoretical and experimental efforts to discriminate enantiomers via NMR spectroscopy, with the focus on the deep connection between chirality and symmetry properties under the combined set of fundamental discrete operations, namely charge conjugation, parity (space inversion) and time (motion) reversal.
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Affiliation(s)
- Paolo Lazzeretti
- Istituto di Struttura della Materia, Consiglio Nazionale delle Ricerche, Via del Fosso del Cavaliere 100, 00133 Roma, Italia
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8
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Mamedov I, Abbasoglu R, Bayramov M, Maharramov A. Synthesis of a new 1,2,3,4,5-pentasubstituted cyclohexanol and determining its stereochemistry by NMR spectroscopy and quantum-chemical calculations. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2016; 54:315-319. [PMID: 26939987 DOI: 10.1002/mrc.4377] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2015] [Revised: 09/20/2015] [Accepted: 10/02/2015] [Indexed: 06/05/2023]
Abstract
The presence of substituents in cyclohexane can influence to the ratio of conformers; for some cases, the boat form is preferable. The new six-membered cyclohexanol derivative 2 has been obtained by the synthesis of (E)-1-(bromophenyl)-3-phenylpropen-2-one (1). The NMR and quantum-chemical conformational analysis for the 2 have carried out, and its possible mechanism of formation was given. Copyright © 2015 John Wiley & Sons, Ltd.
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Affiliation(s)
- Ibrahim Mamedov
- Chemical Faculty, NMR Laboratory, Baku State University, Z. Khalilov 23, Baku, Azerbaijan
| | - Rza Abbasoglu
- Department of Chemistry, Karadeniz Technical University, 61080, Trabzon, Turkey
| | - Musa Bayramov
- Chemical Faculty, NMR Laboratory, Baku State University, Z. Khalilov 23, Baku, Azerbaijan
| | - Abel Maharramov
- Chemical Faculty, NMR Laboratory, Baku State University, Z. Khalilov 23, Baku, Azerbaijan
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9
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Jung SH, Kim KY, Ahn A, Lee SS, Choi MY, Jaworski J, Jung JH. NMR detection of chirality and enantiopurity of amines by using benzene tricarboxamide-based hydrogelators as chiral solvating agents. NEW J CHEM 2016. [DOI: 10.1039/c6nj01543c] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The use of gelator 1D as a means for NMR-based determination of the enantiopurity and chirality of amines.
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Affiliation(s)
- Sung Ho Jung
- Department of Chemistry and Research Institute of National Sciences
- Gyeongsang National University
- Jinju
- Korea
| | - Ka Young Kim
- Department of Chemistry and Research Institute of National Sciences
- Gyeongsang National University
- Jinju
- Korea
| | - Ahreum Ahn
- Department of Chemistry and Research Institute of National Sciences
- Gyeongsang National University
- Jinju
- Korea
| | - Shim Sung Lee
- Department of Chemistry and Research Institute of National Sciences
- Gyeongsang National University
- Jinju
- Korea
| | - Myong Yong Choi
- Department of Chemistry and Research Institute of National Sciences
- Gyeongsang National University
- Jinju
- Korea
| | - Justyn Jaworski
- Department of Chemical Engineering and Institute of Nanoscience and Technology
- Hanyang University
- Seoul
- Korea
| | - Jong Hwa Jung
- Department of Chemistry and Research Institute of National Sciences
- Gyeongsang National University
- Jinju
- Korea
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10
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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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11
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Du G, Li Y, Ma S, Wang R, Li B, Guo F, Zhu W, Li Y. Efficient Determination of the Enantiomeric Purity and Absolute Configuration of Flavanones by Using (S)-3,3'-Dibromo-1,1'-bi-2-naphthol as a Chiral Solvating Agent. JOURNAL OF NATURAL PRODUCTS 2015; 78:2968-2974. [PMID: 26641704 DOI: 10.1021/acs.jnatprod.5b00690] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The enantiomeric purity and absolute configuration of flavanones were first determined using (S)-3,3'-dibromo-1,1'-bi-2-naphthol as a chiral solvating agent by means of (1)H NMR spectroscopy. The enantiomeric purity results closely matched those based on chiral HPLC analysis.
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Affiliation(s)
- Guoxin Du
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine , 1200 Cailun Road, Shanghai, 201203, People's Republic of China
- CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences , 555 Zuchongzhi Road, Shanghai, 201203, People's Republic of China
| | - Yisu Li
- CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences , 555 Zuchongzhi Road, Shanghai, 201203, People's Republic of China
- Nano Science and Technology Institute, University of Science and Technology of China , 166 Renai Road, Suzhou, 215123, People's Republic of China
| | - Shunan Ma
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine , 1200 Cailun Road, Shanghai, 201203, People's Republic of China
| | - Rui Wang
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine , 1200 Cailun Road, Shanghai, 201203, People's Republic of China
| | - Bo Li
- CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences , 555 Zuchongzhi Road, Shanghai, 201203, People's Republic of China
| | - Fujiang Guo
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine , 1200 Cailun Road, Shanghai, 201203, People's Republic of China
| | - Weiliang Zhu
- CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences , 555 Zuchongzhi Road, Shanghai, 201203, People's Republic of China
| | - Yiming Li
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine , 1200 Cailun Road, Shanghai, 201203, People's Republic of China
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12
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Bian G, Yang S, Huang H, Zong H, Song L, Fan H, Sun X. Chirality sensing of tertiary alcohols by a novel strong hydrogen-bonding donor - selenourea. Chem Sci 2015; 7:932-938. [PMID: 29899892 PMCID: PMC5953003 DOI: 10.1039/c5sc03780h] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2015] [Accepted: 10/20/2015] [Indexed: 12/19/2022] Open
Abstract
In this paper, a novel type of chiral bisselenourea sensor was first synthesized and used as a strong hydrogen-bonding donor for highly efficient chiral recognition of a diverse range of tertiary alcohols.
Chemical sensors are powerful for the fast recognition of chiral compounds. However, the established sensing systems are less effective for chiral tertiary alcohols. The chiral tertiary alcohol group is an important structural unit in natural products and drug molecules, and its enantioselective recognition represents a significant and challenging task. In this paper, a novel type of chiral bisselenourea sensor was first synthesized and used as a strong hydrogen-bonding donor for highly efficient chiral recognition of a diverse range of tertiary alcohols. The obtained sharply split NMR signals are well-distinguishable with a large (up to 0.415 ppm) chemical shift nonequivalence. The NMR signal of the hydroxyl hydrogen atom was first employed for enantiomeric excess determination of tertiary alcohols, giving accurate results with <2% absolute errors. The 2D NOESY spectra and computational studies suggest that the geometrical differentiation of the formed diastereomeric complexes between the sensor and tertiary alcohols enables the chiral discrimination of the hydroxyl hydrogen signals of the tertiary alcohol in the 1H NMR spectrum.
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Affiliation(s)
- 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 , P. R. 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 , P. R. China .
| | - 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 , P. R. 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 , P. R. 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 , P. R. China .
| | - Hongjun Fan
- The State Key Lab of Molecular Reaction Dynamics , Dalian Institute of Chemical Physics (iCheM) , Chinese Academy of Sciences , Dalian , Liaoning 116023 , P. R. China .
| | - Xiaoqiang Sun
- School of Petrochemical Engineering , Changzhou University , Changzhou , Jiangsu 213164 , P. R. China .
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13
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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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