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Maj A, Kudelko A, Świątkowski M. Novel Conjugated s-Tetrazine Derivatives Bearing a 4 H-1,2,4-Triazole Scaffold: Synthesis and Luminescent Properties. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27020459. [PMID: 35056774 PMCID: PMC8779062 DOI: 10.3390/molecules27020459] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 01/06/2022] [Accepted: 01/07/2022] [Indexed: 11/17/2022]
Abstract
A series of new symmetrical s-tetrazine derivatives, coupled via a 1,4-phenylene linkage with a 4H-1,2,4-triazole ring, were obtained. The combination of these two rings in an extensively coupled system has significant potential applications, mainly in optoelectronics. The methodology used turned out to be useful regardless of the type of five-membered ring or the nature of the individual substituents. All the products were identified by spectroscopic methods, and the target compounds were tested for luminescent properties. This study showed that all the synthesized highly-conjugated triazoles exhibited luminescence; in particular, one derivative, 3,6-bis(4-(5-(4-methoxyphenyl)-4-phenyl-4H-1,2,4-triazol-3-yl)phenyl)-1,2,4,5-tetrazine (13b), showed strong fluorescence emission and ahigh quantum yield close to 1.
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Affiliation(s)
- Anna Maj
- Department of Chemical Organic Technology and Petrochemistry, The Silesian University of Technology, Krzywoustego 4, PL-44100 Gliwice, Poland;
| | - Agnieszka Kudelko
- Department of Chemical Organic Technology and Petrochemistry, The Silesian University of Technology, Krzywoustego 4, PL-44100 Gliwice, Poland;
- Correspondence: ; Tel.: +48-32-237-17-29
| | - Marcin Świątkowski
- Institute of General and Ecological Chemistry, Lodz University of Technology, Zeromskiego 116, PL-90924 Lodz, Poland;
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2
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Effect of hydrogen–deuterium exchange in amide linkages on properties of electrospun polyamide nanofibers. POLYMER 2021. [DOI: 10.1016/j.polymer.2021.123994] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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3
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Wolf JR. Review: Self-radiolysis of compounds containing tritium and carbon-14. J Labelled Comp Radiopharm 2021; 64:286-335. [PMID: 33439502 DOI: 10.1002/jlcr.3903] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Revised: 01/05/2021] [Accepted: 01/06/2021] [Indexed: 01/02/2023]
Abstract
Energy released from beta emission causes molecules that incorporate tritium (3 H) and carbon-14 (14 C) atoms to be less stable than their stable labeled counterparts, thus making radiolabeled compounds prone to self-radiolysis. This literature review examines the stability of organic compounds incorporating 3 H and 14 C atoms and discusses stability of the compound with respect to functional groups within the radiolabeled molecules. The goal of this paper is to serve as a reference for the stability of radiolabeled compounds.
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Affiliation(s)
- Jeremy R Wolf
- Synthesis Department, Eurofins BioPharma Testing, Columbia, Missouri, USA
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4
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Min J, Wang C, Wang L. A new method for detecting intramolecular H-bonds of aromatic amides based on the de-shielding effect of carbonyl groups on β-protons. Phys Chem Chem Phys 2021; 23:13284-13291. [PMID: 34095931 DOI: 10.1039/d1cp01089a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Aromatic amide foldamers with highly predictable conformations possess potential for application in the fields of stereoselective recognition, charge transport and catalysis, whose conformations are commonly limited by the intramolecular hydrogen bonding between amide groups and hydrogen-bonding receptors. Herein, on the basis of the de-shielding effect of carbonyl groups on β-protons, we develop a new method for detecting intramolecular hydrogen bonds of aromatic amide compounds. The solvent-related changes in the βH chemical shifts (Δ(δβH)) and NH chemical shifts (Δ(δNH)) of three kinds of amide compounds, which are frequently used as building blocks of aromatic amide foldamers, were recorded in chloroform, nitromethane, acetonitrile and DMSO. The Δ(δβH) method is found to be highly suitable for studying methoxy-benzamides and fluoro-benzamides in chloroform and DMSO. It is worth noting that a reference compound is not required for applying the Δ(δβH) method, which is an advantage over the Δ(δNH) method. In addition, we extend the Δ(δNH) method from methoxy-benzamides to pyridine-carboxamides and fluoro-benzamides in chloroform and DMSO, and propose that nitromethane and acetonitrile will be possible alternatives for the Δ(δNH) method if a test compound is not soluble in chloroform.
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Affiliation(s)
- Jing Min
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, China.
| | - Chunyu Wang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, China.
| | - Liyan Wang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, China.
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5
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Miller SL, Wiebenga-Sanford BP, Rithner CD, Levinger NE. Nanoconfinement Raises the Energy Barrier to Hydrogen Atom Exchange between Water and Glucose. J Phys Chem B 2021; 125:3364-3373. [PMID: 33784460 DOI: 10.1021/acs.jpcb.0c10681] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
In bulk aqueous environments, the exchange of protons between labile hydroxyl groups typically occurs easily and quickly. Nanoconfinement can dramatically change this normally facile process. Through exchange spectroscopy (EXSY) NMR measurements, we observe that nanoconfinement of glucose and water within AOT (sodium bis(2-ethylhexyl) sulfosuccinate) reverse micelles raises the energy barrier to labile hydrogen exchange, which suggests a disruption of the hydrogen bond network. Near room temperature, we measure barriers high enough to slow the process by as much as 2 orders of magnitude. Although exchange rates slow with decreasing temperatures in these nanoconfined environments, the barrier we measure below ∼285 K is 3-5 times lower than the barrier measured at room temperature, indicating a change in mechanism for the process. These findings suggest the possibility of hydrogen tunneling at a surprisingly high-temperature threshold. Furthermore, differences in exchange rates depend on the hydroxyl group position on the glucose pyranose ring and suggest a net orientation of glucose at the reverse micelle interface.
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Affiliation(s)
- Samantha L Miller
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523-1872, United States
| | | | - Christopher D Rithner
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523-1872, United States
| | - Nancy E Levinger
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523-1872, United States
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6
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Lam KHB, Le Blanc JCY, Campbell JL. Separating Isomers, Conformers, and Analogues of Cyclosporin using Differential Mobility Spectroscopy, Mass Spectrometry, and Hydrogen–Deuterium Exchange. Anal Chem 2020; 92:11053-11061. [DOI: 10.1021/acs.analchem.0c00191] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- K. H. Brian Lam
- Department of Chemistry and Centre for Research in Mass Spectrometry, York University, 4700 Keele Street, Toronto, Ontario M3J 1P3, Canada
| | | | - J. Larry Campbell
- SCIEX, 71 Four Valley Drive, Concord, Ontario L4K 4 V8, Canada
- Department of Chemistry, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
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7
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Sun C, Cao S, Zhao P, Ma W, Guo Y, Zhao Y. The investigation on the N H reactivity of pentacoordinate spirophosphoranes by H/D exchange and NMR experiments. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.09.020] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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8
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Gorla L, Martí-Centelles V, Altava B, Burguete MI, Luis SV. Cu 2+ recognition by N,N'-benzylated bis(amino amides). Dalton Trans 2017; 46:2660-2669. [PMID: 28168262 DOI: 10.1039/c6dt04756d] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Two new C2-symmetric N,N'-benzylated bis(amino amides) have been synthesised and their interaction with different transition metals studied using a variety of techniques including UV-Vis and CD spectroscopy or ESI-MS. The determination of the corresponding stability constants with Cu2+ has been possible, in H2O/CH3CN 7/3 v/v, for one of these ligands (4) using potentiometric titrations. The results obtained reveal that N-benzylation affords significant changes to their properties and is accompanied by an appreciable decrease in the corresponding complexation stability constants. However, this, along with the low kinetics associated to Ni2+, facilitates the recognition of Cu2+ by 4 that can be followed by the naked-eye up to the submillimolar range. Very interestingly, the chiral nature of this ligand provides an intense and well defined CD curve for the corresponding Cu2+ complex, very sensitive to the coordination geometry, facilitating the analysis of this interaction even at the μM range. The formation by both ligands (3 and 4) of square planar complexes with Cu2+ and Ni2+ displaying a 1 : 1 stoichiometry was confirmed by their X-ray crystal structures.
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Affiliation(s)
- Lingaraju Gorla
- Departamento de Química Inorgánica y Orgánica, Universitat Jaume I, Avda. Sos Baynat s/n., 12071 Castellón, Spain.
| | - Vicente Martí-Centelles
- Departamento de Química Inorgánica y Orgánica, Universitat Jaume I, Avda. Sos Baynat s/n., 12071 Castellón, Spain.
| | - Belén Altava
- Departamento de Química Inorgánica y Orgánica, Universitat Jaume I, Avda. Sos Baynat s/n., 12071 Castellón, Spain.
| | - M Isabel Burguete
- Departamento de Química Inorgánica y Orgánica, Universitat Jaume I, Avda. Sos Baynat s/n., 12071 Castellón, Spain.
| | - Santiago V Luis
- Departamento de Química Inorgánica y Orgánica, Universitat Jaume I, Avda. Sos Baynat s/n., 12071 Castellón, Spain.
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9
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Ahmad A, Silva LF. Metal-Free Asymmetric Synthesis of Indanes through Chiral Hypervalent Iodine(III)-Mediated Ring Contraction. J Org Chem 2016; 81:2174-81. [DOI: 10.1021/acs.joc.5b02803] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Anees Ahmad
- Instituto de Química, Universidade de São Paulo, CP 26077, CEP 05513-970, São Paulo − SP, Brazil
| | - Luiz F. Silva
- Instituto de Química, Universidade de São Paulo, CP 26077, CEP 05513-970, São Paulo − SP, Brazil
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10
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Shugrue CR, DeFrancisco JR, Metrano AJ, Brink BD, Nomoto RS, Linton BR. Detection of weak hydrogen bonding to fluoro and nitro groups in solution using H/D exchange. Org Biomol Chem 2016; 14:2223-7. [PMID: 26782121 DOI: 10.1039/c5ob02360b] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hydrogen/deuterium (H/D) exchange can be a sensitive technique for measuring the strength of hydrogen bonding to neutral organic nitro and fluoro groups. The slower rates of reaction in comparison to suitable controls suggest that hydrogen bonding is present, albeit rather weak.
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Affiliation(s)
- C R Shugrue
- Department of Chemistry, College of the Holy Cross, Worcester, MA, USA.
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11
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Hong G, Wu S, Zhu X, Mao D, Wang L. Peroxide-mediated direct synthesis of amides from aroyl surrogates. Tetrahedron 2016. [DOI: 10.1016/j.tet.2015.11.063] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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12
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Seo HA, Cho YH, Lee YS, Cheon CH. Formation of Amides from Imines via Cyanide-Mediated Metal-Free Aerobic Oxidation. J Org Chem 2015; 80:11993-8. [DOI: 10.1021/acs.joc.5b01922] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Hong-Ahn Seo
- Department of Chemistry, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Yeon-Ho Cho
- Department of Chemistry, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Ye-Sol Lee
- Department of Chemistry, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Cheol-Hong Cheon
- Department of Chemistry, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
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13
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Mishra SK, Suryaprakash N. Study of H/D exchange rates to derive the strength of intramolecular hydrogen bonds in halo substituted organic building blocks: An NMR spectroscopic investigation. Chem Phys Lett 2015. [DOI: 10.1016/j.cplett.2015.09.038] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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14
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Wang JM, Jiang X, Zhang Y, Zhu YM, Shen JK. Palladium-catalyzed synthesis of 4H-benzo[d][1,3]oxazin-4-ones and N-(2-cyanophenyl)benzamides via tert-butyl isocyanide insertion. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.03.121] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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15
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Epishina MA, Kulikov AS, Ignat’ev NV, Schulte M, Makhova NN. Efficient synthesis of tertiary acyclic amides by the Chapman rearrangement of aryl benzimidates in ionic liquids. MENDELEEV COMMUNICATIONS 2015. [DOI: 10.1016/j.mencom.2015.03.016] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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16
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Miltojević AB, Radulović NS. Structural elucidation of thermolysis products of methyl N-methyl-N-nitrosoanthranilate. RSC Adv 2015. [DOI: 10.1039/c5ra07612a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
MethylN-methyl-N-nitrosoanthranilate thermolysis in the vapor and condensed phases gave different coupling products, dimethyl 2,2′-(1,2-dimethylhydrazine-1,2-diyl)dibenzoate and methyl 5-methyl-6-oxo-(5H)-phenanthridine-4-carboxylate, respectively.
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Affiliation(s)
- Ana B. Miltojević
- Department of Chemistry
- Faculty of Science and Mathematics
- University of Niš
- 18000 Niš
- Serbia
| | - Niko S. Radulović
- Department of Chemistry
- Faculty of Science and Mathematics
- University of Niš
- 18000 Niš
- Serbia
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