1
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Feuge N, Wilhelm R. Straightforward synthesis of chiral sulfonate-based ionic liquids from amino alcohols for chiral recognition. Chirality 2023; 35:993-1011. [PMID: 37497749 DOI: 10.1002/chir.23614] [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: 12/07/2022] [Revised: 06/30/2023] [Accepted: 07/07/2023] [Indexed: 07/28/2023]
Abstract
New sulfonate-based chiral salts were prepared from amino alcohols and sodium hydroxymethanesulfonate, vinyl sulfonate, or sultone. The synthesis started with different amino acids from the chiral pool and gave the desired products in just four steps. After cation metathesis, the salts were explored as chiral solvating agents (CSAs) in NMR studies. The new chiral ionic liquids (CILs) were successfully able to interact with different chiral guest molecules and formed diastereomeric aggregates. In some cases, baseline separation was observed. The influence of the structural differences in the CIL as well as the structural requirements of the guest molecule is discussed.
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Affiliation(s)
- Niklas Feuge
- Institute of Organic Chemistry, Clausthal University of Technology, Clausthal-Zellerfeld, Germany
| | - René Wilhelm
- Institute of Organic Chemistry, Clausthal University of Technology, Clausthal-Zellerfeld, Germany
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2
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Seog DJH, van Kien N, Ryoo JJ. Amino alcohol-derived chiral stationary phases. Chirality 2023; 35:739-752. [PMID: 37144722 DOI: 10.1002/chir.23574] [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: 02/01/2023] [Revised: 04/11/2023] [Accepted: 04/14/2023] [Indexed: 05/06/2023]
Abstract
An updated minireview of chiral stationary phases (CSPs) based on amino alcohols is presented. In this minireview, we focused on amino alcohols as starting materials in preparation of chiral catalysts for asymmetric organic synthesis and CSPs for chiral separations. Among the various CSPs, we summarized the important developments and applications of the amino alcohol-based Pirkle-type CSPs, ligand exchange CSPs, α-amino acid-derived amino alcohol CSPs, and symmetric CSPs from their first appearance to the present day to propose ideas for the development of new CSPs with improved performance.
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Affiliation(s)
- David Jin Han Seog
- Department of Chemistry Education, Kyungpook National University, Daegu, South Korea
| | - Nguyen van Kien
- Department of Chemistry Education, Kyungpook National University, Daegu, South Korea
| | - Jae Jeong Ryoo
- Department of Chemistry Education, Kyungpook National University, Daegu, South Korea
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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
![]()
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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Enantiodiscrimination of carboxylic acids using single enantiomer thioureas as chiral solvating agents. Tetrahedron 2020. [DOI: 10.1016/j.tet.2020.131141] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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5
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Genc HN. Novel chiral Oxa-bridged Calix[2]arene[2]triazine derivatives as NMR chiral reagents for enantioselective recognition of α-racemic carboxylic acids. J INCL PHENOM MACRO 2019. [DOI: 10.1007/s10847-019-00912-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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6
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Cuřínová P, Hájek P, Janků K, Holakovský R. Method for determination of optical purity of 2‐arylpropanoic acids using urea derivatives based on a 1,1′‐binaphthalene skeleton as chiral NMR solvating agents: Advantages and limitations thereof. Chirality 2019; 31:410-417. [DOI: 10.1002/chir.23067] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2019] [Revised: 03/01/2019] [Accepted: 03/05/2019] [Indexed: 11/09/2022]
Affiliation(s)
- Petra Cuřínová
- Institute of Chemical Process FundamentalsCzech Academy of Sciences Prague Czech Republic
| | - Peter Hájek
- Department of Organic ChemistryUniversity of Chemistry and Technology Prague Czech Republic
| | - Kristýna Janků
- Department of Organic ChemistryUniversity of Chemistry and Technology Prague Czech Republic
| | - Roman Holakovský
- Department of Organic ChemistryUniversity of Chemistry and Technology Prague Czech Republic
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7
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Synthesis of noval chiral tridentate amino alcohols as chiral solvating agents under ball-milling conditions. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.10.049] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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8
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Durmaz M, Halay E, Bozkurt S. Recent applications of chiral calixarenes in asymmetric catalysis. Beilstein J Org Chem 2018; 14:1389-1412. [PMID: 29977403 PMCID: PMC6009176 DOI: 10.3762/bjoc.14.117] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2018] [Accepted: 05/17/2018] [Indexed: 12/13/2022] Open
Abstract
The use of calixarenes in asymmetric catalysis is receiving increasing attention due to their tunable three-dimensional molecular platforms along with their easy syntheses and versatile modification at the upper and lower rims. This review summarizes the recent progress of synthesis and use of chiral calixarenes in asymmetric syntheses which emerged later than 2010.
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Affiliation(s)
- Mustafa Durmaz
- Department of Chemistry Education, Ahmet Kelesoglu Education Faculty, Necmettin Erbakan University, 42090 Konya, Turkey
| | - Erkan Halay
- Department of Chemistry and Chemical Processing Technologies, Banaz Vocational School, Usak University, Usak, Turkey.,Scientific Analysis Technological Application and Research Center (UBATAM), Usak University, Usak, Turkey
| | - Selahattin Bozkurt
- Scientific Analysis Technological Application and Research Center (UBATAM), Usak University, Usak, Turkey.,Vocational School of Health Services, Usak University, 64200 Usak, Turkey
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9
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Shyshkanov SA, Orlov NV. Design of Selenium-Based Chiral Chemical Probes for Simultaneous Enantio- and Chemosensing of Chiral Carboxylic Acids with Remote Stereogenic Centers by NMR Spectroscopy. Chemistry 2016; 22:15458-15467. [DOI: 10.1002/chem.201602884] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Indexed: 11/10/2022]
Affiliation(s)
- Sergey A. Shyshkanov
- Zelinsky Institute of Organic Chemistry; Russian Academy of Sciences; Leninsky Prospekt, 47 Moscow 119991 Russia
| | - Nikolai V. Orlov
- Zelinsky Institute of Organic Chemistry; Russian Academy of Sciences; Leninsky Prospekt, 47 Moscow 119991 Russia
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10
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Karakaplan M, Jameel B. Synthesis and application of amino alcohol imides as NMR solvating agents for chiral discrimination of carboxylic acids. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.tetasy.2016.05.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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11
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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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12
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Uzarewicz-Baig M, Wilhelm R. Straightforward Diastereoselective Synthesis of P-Chirogenic (1R)-1,8,8-Trimethyl-2,4-diaza-3-phosphabicyclo[3.2.1]octane 3-Oxides: Application as Chiral NMR Solvating Agents. HETEROATOM CHEMISTRY 2016. [DOI: 10.1002/hc.21309] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
| | - René Wilhelm
- Department of Chemistry; University of Paderborn; Paderborn 33098 Germany
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13
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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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14
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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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15
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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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16
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Application of optically active aminonaphthols as NMR solvating agents for chiral discrimination of mandelic acid. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.tetasy.2014.04.003] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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17
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Karthikraj R, Chitumalla RK, Bhanuprakash K, Prabhakar S, Vairamani M. Enantiomeric differentiation of β-amino alcohols under electrospray ionization mass spectrometric conditions. JOURNAL OF MASS SPECTROMETRY : JMS 2014; 49:108-116. [PMID: 24446270 DOI: 10.1002/jms.3312] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2013] [Revised: 11/07/2013] [Accepted: 11/15/2013] [Indexed: 06/03/2023]
Abstract
The enantiomeric differentiation of a series of chiral β-amino alcohols (A) is attempted, for the first time, by applying the kinetic method using L-proline, L-tryptophan, 4-iodo-L-phenylalanine or 3, 5-diiodo-L-tyrosine as the chiral references (Ref) and Cu(2+) or Ni(2+) ion (M) as the central metal ion. The trimeric diastereomeric adduct ions, [M+(Ref)2+A-H](+), formed under electrospray ionization conditions, are subjected for collision-induced dissociation (CID) experiments. The products ions, formed by the loss of either a reference or an analyte, detected in the CID spectra are evaluated for the enantiomeric differentiation. All the references showed enantiomeric differentiation and the R(chiral) values are better for the aromatic alcohols than for aliphatic alcohols. Notably, the R(chiral) values of the aliphatic amino alcohols enhanced when Ni(2+) is used as the central metal ion. The experimental results are well supported by computational studies carried out on the diastereomeric dimeric complexes. The computational data of amino alcohols is correlated with that of amino acids to understand the structural interaction of amino alcohols with reference molecule and central metal ion and their role on the stabilization of the dimeric complexes. Application of flow injection MS/MS method is also demonstrated for the enantiomeric differentiation of the amino alcohols.
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Affiliation(s)
- R Karthikraj
- National Centre for Mass Spectrometry, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500007, A.P., India
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18
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Yang K, Li SZ, Wang YH, Zhang WZ, Xu ZH, Zhou XY, Zhu RX, Luo J, Wan Q. Enantioselective recognition of an inherently chiral calix[4]arene crown-6 carboxylic acid cone conformer towards chiral aminoalcohols. RSC Adv 2014. [DOI: 10.1039/c3ra46723f] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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19
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Durmaz M, Sirit A. Calixarene-based chiral primary amine thiourea promoted highly enantioselective asymmetric Michael reactions of α,α-disubstituted aldehydes with maleimides. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.tetasy.2013.09.010] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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20
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21
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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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22
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23
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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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24
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Guo S, Wang G, Ai L. Synthesis of macrocycles and their application as chiral solvating agents in the enantiomeric recognition of carboxylic acids and α-amino acid derivatives. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.tetasy.2013.03.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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25
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Durmaz M, Sirit A. Calixarene-based highly efficient primary amine–thiourea organocatalysts for asymmetric Michael addition of aldehydes to nitrostyrenes. Supramol Chem 2013. [DOI: 10.1080/10610278.2013.773331] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Mustafa Durmaz
- a Department of Chemistry , Necmettin Erbakan University , Meram , Konya , 42099 , Turkey
| | - Abdulkadir Sirit
- a Department of Chemistry , Necmettin Erbakan University , Meram , Konya , 42099 , Turkey
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26
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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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27
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Ma Q, Ma M, Tian H, Ye X, Xiao H, Chen LH, Lei X. A novel amine receptor based on the binol scaffold functions as a highly effective chiral shift reagent for carboxylic acids. Org Lett 2012; 14:5813-5. [PMID: 23170807 DOI: 10.1021/ol3027686] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A "smart" receptor has been newly synthesized. NMR studies demonstrated that the receptor functions as a chiral shift reagent that is highly effective for determining the enantiomeric purity of a series of carboxylic acids, particularly those that have an α-oxygen atom.
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Affiliation(s)
- Qingzhu Ma
- College of Chemistry & Materials Engineering, Wenzhou University, Wenzhou 325035, P. R. China
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28
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Naziroglu HN, Durmaz M, Bozkurt S, Demir AS, Sirit A. Application of l-prolinamides as highly efficient organocatalysts for the asymmetric Michael addition of unmodified aldehydes to nitroalkenes. ACTA ACUST UNITED AC 2012. [DOI: 10.1016/j.tetasy.2012.01.008] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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29
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Bozkurt S, Yilmaz M, Sirit A. Chiral calix[4]arenes bearing amino alcohol functionality as membrane carriers for transport of chiral amino acid methylesters and mandelic acid. Chirality 2011; 24:129-36. [DOI: 10.1002/chir.21034] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2011] [Accepted: 09/08/2011] [Indexed: 11/12/2022]
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30
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Imidazolinium sulfonate and sulfamate zwitterions as chiral solvating agents for enantiomeric excess calculations. ACTA ACUST UNITED AC 2011. [DOI: 10.1016/j.tetasy.2011.09.018] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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31
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Durmaz M, Bozkurt S, Naziroglu HN, Yilmaz M, Sirit A. Chiral calix[4]arenes bearing aminonaphthol moieties as membrane carriers for amino acid methyl esters and mandelic acid. ACTA ACUST UNITED AC 2011. [DOI: 10.1016/j.tetasy.2011.04.019] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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