1
|
Martynovskaya SV, Gyrgenova EA, Ushakov IA, Borodina TN, Ivanov AV. Synthesis of Tetrazines from N-Allenylpyrrole-2-carbaldehydes and pH-Controlled Reversible Fragmentation. Org Lett 2024; 26:132-136. [PMID: 38156983 DOI: 10.1021/acs.orglett.3c03751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
A one-pot highly selective approach to the synthesis of hitherto unknown tetrahydropyrrolo[2',1':3,4]pyrazino[1,2-b]pyrrolo[2',1':3,4]pyrazino[1,2-e][1,2,4,5]tetrazine ensembles from simple and available N-allenylpyrrole-2-carbaldehydes and hydrazines has been developed. The reaction proceeds in a very facile manner and tolerates different substituents in both pyrroles and hydrazines. The novel class of organic compounds, tetrahydrodipyrrolodipyrazinotetrazines, proves to be promising pH-sensitive switchers to deliver N-aminopyrrolopyrazinium salts in acidic media and then again tetrahydrodipyrrolodipyrazinotetrazines in basic media. Both transformations give the products in quantitative yields.
Collapse
Affiliation(s)
- Svetlana V Martynovskaya
- Favorsky Irkutsk Institute of Chemistry, Siberian Branch of the Russian Academy of Sciences, 1 Favorsky St, 664033 Irkutsk, Russian Federation
| | - Elena A Gyrgenova
- Favorsky Irkutsk Institute of Chemistry, Siberian Branch of the Russian Academy of Sciences, 1 Favorsky St, 664033 Irkutsk, Russian Federation
| | - Igor A Ushakov
- Favorsky Irkutsk Institute of Chemistry, Siberian Branch of the Russian Academy of Sciences, 1 Favorsky St, 664033 Irkutsk, Russian Federation
| | - Tatiana N Borodina
- Favorsky Irkutsk Institute of Chemistry, Siberian Branch of the Russian Academy of Sciences, 1 Favorsky St, 664033 Irkutsk, Russian Federation
| | - Andrey V Ivanov
- Favorsky Irkutsk Institute of Chemistry, Siberian Branch of the Russian Academy of Sciences, 1 Favorsky St, 664033 Irkutsk, Russian Federation
| |
Collapse
|
2
|
Koçak R, Güney M. One-Pot Synthesis of Polycyclic 4,5-Dihydropyridazine-3(2H)-ones by Inverse Electron-Demand Diels-Alder (IEDDA) Reactions from Alkenes. Chemistry 2023; 29:e202302096. [PMID: 37548107 DOI: 10.1002/chem.202302096] [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: 07/02/2023] [Revised: 08/05/2023] [Accepted: 08/05/2023] [Indexed: 08/08/2023]
Abstract
In the classical Inverse Electron-Demand Diels-Alder (IEDDA) reactions between alkenes and tetrazines, 4,5-dihydropyridazines are formed. 4,5-Dihydropyridazines are rapidly converted to the more energetically stable 1,4-dihydropyridazines by 1,3-prototropic isomerization. In this study, instead of 1,4-dihydropyridazines, 4,5-dihydropyridazine-3(2H)-ones were obtained as a result of IEDDA reactions between tetrazines with leaving groups at the 3,6-positions, and norbornene and barrelene-derived polycyclic alkenes in the presence of moisture in air or solvent. To show that this new method works not only on strained polycyclic alkenes but also on monocyclic and linear alkenes, the corresponding 4,5-dihydropyridazine-3(2H)-ones were obtained in high yields from the reactions performed with styrene and cyclopentene as well. The chemical structures of the polycyclic 4,5-dihydropyridazine-3(2H)-ones were determined by NMR and HRMS analyses. In addition, the exact structures of the polycyclic 4,5-dihydropyridazine-3(2H)-ones were also experimentally proven by converting them to pyridazine-3(2H)-ones known in the literature.
Collapse
Affiliation(s)
- Ramazan Koçak
- Department of Chemistry, Faculty of Sciences, Ataturk University, Erzurum, 25240, Turkey
- Department of Chemistry, Faculty of Science and Art, Agri Ibrahim Cecen University, Agri, 04100, Turkey
| | - Murat Güney
- Department of Chemistry, Faculty of Science and Art, Agri Ibrahim Cecen University, Agri, 04100, Turkey
- Faculty of Pharmacy, Agri Ibrahim Cecen University, Agri, 04100, Turkey
| |
Collapse
|
3
|
Markham TE, Duggan PJ, Johnston MR. Investigating the Diels-Alder reactivity of the natural pyrethrins. Tetrahedron 2023. [DOI: 10.1016/j.tet.2023.133326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
|
4
|
Wu ZC, Boger DL. 1,2,3,5-Tetrazines: A General Synthesis, Cycloaddition Scope, and Fundamental Reactivity Patterns. J Org Chem 2022; 87:16829-16846. [PMID: 36461931 PMCID: PMC9771955 DOI: 10.1021/acs.joc.2c02687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
Abstract
Despite the explosion of interest in heterocyclic azadienes, 1,2,3,5-tetrazines remain unexplored. Herein, the first general synthesis of this new class of heterocycles is disclosed. Its use in the preparation of a series of derivatives, and the first study of substituent effects on their cycloaddition reactivity, mode, and regioselectivity provide the foundation for future use. Their reactions with amidine, electron-rich, and strained dienophiles reveal unique fundamental reactivity patterns (4,6-dialkyl-1,2,3,5-tetrazines > 4,6-diaryl-1,2,3,5-tetrazines for amidines but slower with strained dienophiles), an exclusive C4/N1 mode of cycloaddition, and dominant alkyl versus aryl control on regioselectivity. An orthogonal reactivity of 1,2,3,5-tetrazines and the well-known isomeric 1,2,4,5-tetrazines is characterized, and detailed kinetic and mechanistic investigations of the remarkably fast reaction of 1,2,3,5-tetrazines with amidines, especially 4,6-dialkyl-1,2,3,5-tetrazines, established the mechanistic origins underlying the reactivity patterns and key features needed for future applications.
Collapse
Affiliation(s)
- Zhi-Chen Wu
- Department of Chemistry and The Skaggs Institute for Chemical Biology, The Scripps Research Institute, 10550 N. Torrey Pines Road, La Jolla, California 92037, United States
| | - Dale L Boger
- Department of Chemistry and The Skaggs Institute for Chemical Biology, The Scripps Research Institute, 10550 N. Torrey Pines Road, La Jolla, California 92037, United States
| |
Collapse
|
5
|
Zhu Z, Boger DL. Acyclic and Heterocyclic Azadiene Diels-Alder Reactions Promoted by Perfluoroalcohol Solvent Hydrogen Bonding: Comprehensive Examination of Scope. J Org Chem 2022; 87:14657-14672. [PMID: 36239452 PMCID: PMC9637783 DOI: 10.1021/acs.joc.2c02000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Herein, the first use of perfluoroalcohol H-bonding in accelerating acyclic azadiene inverse electron demand cycloaddition reactions is described, and its use in the promotion of heterocyclic azadiene cycloaddition reactions is generalized through examination of a complete range of azadienes. The scope of dienophiles was comprehensively explored; relative reactivity trends and solvent compatibilities were established with respect to the dienophile as well as azadiene; H-bonding solvent effects that lead to rate enhancements, yield improvements, and their impact on regioselectivity and mode of cycloaddition are defined; new viable diene/dienophile reaction partners in the cycloaddition reactions are disclosed; and key comparison rate constants are reported. The perfluoroalcohol effectiveness at accelerating an inverse electron demand Diels-Alder cycloaddition is directly correlated with its H-bond potential (pKa). Not only are the reactions of electron-rich dienophiles accelerated but those of strained and even unactivated alkenes and alkynes are improved, including representative bioorthogonal click reactions.
Collapse
Affiliation(s)
- Zixi Zhu
- Department of Chemistry and the Skaggs Institute for Chemical-Biology, The Scripps Research Institute, La Jolla, California 92037, United States
| | - Dale L Boger
- Department of Chemistry and the Skaggs Institute for Chemical-Biology, The Scripps Research Institute, La Jolla, California 92037, United States
| |
Collapse
|
6
|
Mondal J, Sivaramakrishna A. Functionalized Triazines and Tetrazines: Synthesis and Applications. Top Curr Chem (Cham) 2022; 380:34. [PMID: 35737142 DOI: 10.1007/s41061-022-00385-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Accepted: 05/13/2022] [Indexed: 12/19/2022]
Abstract
The molecules possessing triazine and tetrazine moieties belong to a special class of heterocyclic compounds. Both triazines and tetrazines are building blocks and have provided a new dimension to the design of biologically important organic molecules. Several of their derivatives with fine-tuned electronic properties have been identified as multifunctional, adaptable, switchable, remarkably antifungal, anticancer, antiviral, antitumor, cardiotonic, anti-HIV, analgesic, anti-protozoal, etc. The objective of this review is to comprehensively describe the recent developments in synthesis, coordination properties, and various applications of triazine and tetrazine molecules. The rich literature demonstrates various synthetic routes for a variety of triazines and tetrazines through microwave-assisted, solid-phase, metal-based, [4+2] cycloaddition, and multicomponent one-pot reactions. Synthetic approaches contain linear, angular, and fused triazine and tetrazine heterocycles through a combinatorial method. Notably, the triazines and tetrazines undergo a variety of organic transformations, including electrophilic addition, coupling, nucleophilic displacement, and intramolecular cyclization. The mechanistic aspects of these heterocycles are discussed in a detailed way. The bioorthogonal application of these polyazines with various strained alkenes and alkynes provides a new prospect for investigations in chemical biology. This review systematically encapsulates the recent developments and challenges in the synthesis and possible potential applications of various triazine and tetrazine systems.
Collapse
Affiliation(s)
- Joydip Mondal
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology (VIT), Vellore, Tamil Nadu, 632 014, India
| | - Akella Sivaramakrishna
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology (VIT), Vellore, Tamil Nadu, 632 014, India.
| |
Collapse
|
7
|
Maj A, Kudelko A, Świątkowski M. Synthesis and Luminescent Properties of s-Tetrazine Derivatives Conjugated with the 4H-1,2,4-Triazole Ring. Molecules 2022; 27:molecules27113642. [PMID: 35684576 PMCID: PMC9181980 DOI: 10.3390/molecules27113642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 06/01/2022] [Accepted: 06/02/2022] [Indexed: 12/04/2022] Open
Abstract
New derivatives obtained by the combination of unique 1,2,4,5-tetrazine and 4H-1,2,4-triazole rings have great application potential in many fields. Therefore, two synthetic few-step methodologies, which make use of commercially available 4-cyanobenzoic acid (method A) and ethyl diazoacetate (method B), were applied to produce two groups of the aforementioned heterocyclic conjugates. In both cases, the target compounds were obtained in various combinations, by introducing electron-donating or electron-withdrawing substituents into the terminal rings, together with aromatic or aliphatic substituents on the triazole nitrogen atom. Synthesis of such designed systems made it possible to analyze the influence of individual elements of the structure on the reaction course, as well as the absorption and emission properties. The structure of all products was confirmed by conventional spectroscopic methods, and their luminescent properties were also determined.
Collapse
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.: +48-32-237-1729
| | - Marcin Świątkowski
- Institute of General and Ecological Chemistry, Lodz University of Technology, Zeromskiego 116, PL-90924 Lodz, Poland;
| |
Collapse
|
8
|
Recent Advances in the Development of Tetrazine Ligation Tools for Pretargeted Nuclear Imaging. Pharmaceuticals (Basel) 2022; 15:ph15060685. [PMID: 35745604 PMCID: PMC9227058 DOI: 10.3390/ph15060685] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Revised: 05/25/2022] [Accepted: 05/25/2022] [Indexed: 01/25/2023] Open
Abstract
Tetrazine ligation has gained interest as a bio-orthogonal chemistry tool within the last decade. In nuclear medicine, tetrazine ligation is currently being explored for pretargeted approaches, which have the potential to revolutionize state-of-the-art theranostic strategies. Pretargeting has been shown to increase target-to-background ratios for radiopharmaceuticals based on nanomedicines, especially within early timeframes. This allows the use of radionuclides with short half-lives which are more suited for clinical applications. Pretargeting bears the potential to increase the therapeutic dose delivered to the target as well as reduce the respective dose to healthy tissue. Combined with the possibility to be applied for diagnostic imaging, pretargeting could be optimal for theranostic approaches. In this review, we highlight efforts that have been made to radiolabel tetrazines with an emphasis on imaging.
Collapse
|
9
|
A new coordination compound based on 3, 3′-bis(1H-tetrazol-5-yl)-4, 4′-azofurazan (H2BTZAF): Preparation, crystal structure, and thermal properties. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
10
|
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.
Collapse
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;
| |
Collapse
|
11
|
Dealkenylative Ni-Catalyzed Cross-Coupling Enabled by Tetrazine and Photoexcitation. J Am Chem Soc 2021; 143:14046-14052. [PMID: 34437800 DOI: 10.1021/jacs.1c05092] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A new and general method to functionalize the C(sp3)-C(sp2) bond of alkyl and alkene linkages has been developed, leading to the dealkenylative generation of carbon-centered radicals that can be intercepted to undergo Ni-catalyzed C(sp3)-C(sp2) cross-coupling. This one-pot protocol leverages the easily procured alkene feedstocks for organic synthesis with excellent functional group compatibility without the need for a photoredox catalyst.
Collapse
|
12
|
Santos T, Rivero DS, Pérez‐Pérez Y, Martín‐Encinas E, Pasán J, Daranas AH, Carrillo R. Dynamic Nucleophilic Aromatic Substitution of Tetrazines. Angew Chem Int Ed Engl 2021; 60:18783-18791. [PMID: 34085747 PMCID: PMC8457238 DOI: 10.1002/anie.202106230] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Indexed: 12/13/2022]
Abstract
A dynamic nucleophilic aromatic substitution of tetrazines (SN Tz) is presented herein. It combines all the advantages of dynamic covalent chemistry with the versatility of the tetrazine moiety. Indeed, libraries of compounds or sophisticated molecular structures can be easily obtained, which are susceptible to post-functionalization by inverse electron demand Diels-Alder (IEDDA) reaction, which also locks the exchange. Additionally, the structures obtained can be disassembled upon the application of the right stimulus, either UV irradiation or a suitable chemical reagent. Moreover, SN Tz is compatible with the imine chemistry of anilines. The high potential of this methodology has been proved by building two responsive supramolecular systems: A macrocycle that displays a light-induced release of acetylcholine; and a truncated [4+6] tetrahedral shape-persistent fluorescent cage, which is disassembled by thiols unless it is post-stabilized by IEDDA.
Collapse
Affiliation(s)
- Tanausú Santos
- Functional Molecular Systems GroupInstituto de Productos Naturales y Agrobiología (IPNA-CSIC)Avda. Astrofísico Fco. Sánchez 338206La LagunaSpain
| | - David S. Rivero
- Functional Molecular Systems GroupInstituto de Productos Naturales y Agrobiología (IPNA-CSIC)Avda. Astrofísico Fco. Sánchez 338206La LagunaSpain
| | - Yaiza Pérez‐Pérez
- Functional Molecular Systems GroupInstituto de Productos Naturales y Agrobiología (IPNA-CSIC)Avda. Astrofísico Fco. Sánchez 338206La LagunaSpain
| | - Endika Martín‐Encinas
- Functional Molecular Systems GroupInstituto de Productos Naturales y Agrobiología (IPNA-CSIC)Avda. Astrofísico Fco. Sánchez 338206La LagunaSpain
| | - Jorge Pasán
- Laboratorio de Materiales para Análisis Químicos (MAT4LL)Departamento de FísicaUniversidad de La Laguna (ULL)38206La LagunaTenerifeSpain
| | - Antonio Hernández Daranas
- Functional Molecular Systems GroupInstituto de Productos Naturales y Agrobiología (IPNA-CSIC)Avda. Astrofísico Fco. Sánchez 338206La LagunaSpain
| | - Romen Carrillo
- Functional Molecular Systems GroupInstituto de Productos Naturales y Agrobiología (IPNA-CSIC)Avda. Astrofísico Fco. Sánchez 338206La LagunaSpain
| |
Collapse
|
13
|
Assembly of Three New Co2/Mn5/Co5-Cluster-Based Metal–Organic Frameworks: Syntheses, Structure, Thermal Stability and Magnetic Properties. J CLUST SCI 2021. [DOI: 10.1007/s10876-021-02129-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
14
|
Santos T, Rivero DS, Pérez‐Pérez Y, Martín‐Encinas E, Pasán J, Daranas AH, Carrillo R. Dynamic Nucleophilic Aromatic Substitution of Tetrazines. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202106230] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Tanausú Santos
- Functional Molecular Systems Group Instituto de Productos Naturales y Agrobiología (IPNA-CSIC) Avda. Astrofísico Fco. Sánchez 3 38206 La Laguna Spain
| | - David S. Rivero
- Functional Molecular Systems Group Instituto de Productos Naturales y Agrobiología (IPNA-CSIC) Avda. Astrofísico Fco. Sánchez 3 38206 La Laguna Spain
| | - Yaiza Pérez‐Pérez
- Functional Molecular Systems Group Instituto de Productos Naturales y Agrobiología (IPNA-CSIC) Avda. Astrofísico Fco. Sánchez 3 38206 La Laguna Spain
| | - Endika Martín‐Encinas
- Functional Molecular Systems Group Instituto de Productos Naturales y Agrobiología (IPNA-CSIC) Avda. Astrofísico Fco. Sánchez 3 38206 La Laguna Spain
| | - Jorge Pasán
- Laboratorio de Materiales para Análisis Químicos (MAT4LL) Departamento de Física Universidad de La Laguna (ULL) 38206 La Laguna Tenerife Spain
| | - Antonio Hernández Daranas
- Functional Molecular Systems Group Instituto de Productos Naturales y Agrobiología (IPNA-CSIC) Avda. Astrofísico Fco. Sánchez 3 38206 La Laguna Spain
| | - Romen Carrillo
- Functional Molecular Systems Group Instituto de Productos Naturales y Agrobiología (IPNA-CSIC) Avda. Astrofísico Fco. Sánchez 3 38206 La Laguna Spain
| |
Collapse
|
15
|
Mono- and Binuclear Copper(II) and Nickel(II) Complexes with the 3,6-Bis(picolylamino)-1,2,4,5-Tetrazine Ligand. Molecules 2021; 26:molecules26082122. [PMID: 33917122 PMCID: PMC8067877 DOI: 10.3390/molecules26082122] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 03/28/2021] [Accepted: 03/31/2021] [Indexed: 11/30/2022] Open
Abstract
Four new compounds of formulas [Cu(hfac)2(L)] (1), [Ni(hfac)2(L)] (2), [{Cu(hfac)2}2(µ-L)]·2CH3OH (3) and [{Ni(hfac)2}2(µ-L)]·2CH3CN (4) [Hhfac = hexafluoroacetylacetone and L = 3,6-bis(picolylamino)-1,2,4,5-tetrazine] have been prepared and their structures determined by X-ray diffraction on single crystals. Compounds 1 and 2 are isostructural mononuclear complexes where the metal ions [copper(II) (1) and nickel(II) (2)] are six-coordinated in distorted octahedral MN2O4 surroundings which are built by two bidentate hfac ligands plus another bidentate L molecule. This last ligand coordinates to the metal ions through the nitrogen atoms of the picolylamine fragment. Compounds 3 and 4 are centrosymmetric homodinuclear compounds where two bidentate hfac units are the bidentate capping ligands at each metal center and a bis-bidentate L molecule acts as a bridge. The values of the intramolecular metal···metal separation are 7.97 (3) and 7.82 Å (4). Static (dc) magnetic susceptibility measurements were carried out for polycrystalline samples 1–4 in the temperature range 1.9–300 K. Curie law behaviors were observed for 1 and 2, the downturn of χMT in the low temperature region for 2 being due to the zero-field splitting of the nickel(II) ion. Very weak [J = −0.247(2) cm−1] and relatively weak intramolecular antiferromagnetic interactions [J = −4.86(2) cm−1] occurred in 3 and 4, respectively (the spin Hamiltonian being defined as H = −JS1·S2). Simple symmetry considerations about the overlap between the magnetic orbitals across the extended bis-bidentate L bridge in 3 and 4 account for their magnetic properties.
Collapse
|
16
|
Koçak R, Daştan A. Synthesis of dibenzosuberenone-based novel polycyclic π-conjugated dihydropyridazines, pyridazines and pyrroles. Beilstein J Org Chem 2021; 17:719-729. [PMID: 33796159 PMCID: PMC7991620 DOI: 10.3762/bjoc.17.61] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Accepted: 02/26/2021] [Indexed: 11/25/2022] Open
Abstract
The synthesis of novel polycyclic π-conjugated dihydropyridazines, pyridazines, and pyrroles was studied. Dihydropyridazine dyes were synthesized by inverse electron-demand Diels–Alder cycloaddition reactions between a dibenzosuberenone and tetrazines that bear various substituents. The pyridazines were synthesized in high yields by oxidation of dihydropyridazine-appended dibenzosuberenones with PIFA or NO. p-Quinone derivatives of pyridazines were also obtained by H-shift isomerization following the inverse electron-demand Diels–Alder reaction of tetrazines with p-quinone dibenzosuberenone. Then these pyridazines were converted to the corresponding pyrroles by reductive treatment with zinc. It was observed that all the dihydropyridazines obtained gave absorbance and emission at long wavelengths.
Collapse
Affiliation(s)
- Ramazan Koçak
- Department of Chemistry, Faculty of Sciences, Atatürk University, Erzurum, 25240, Turkey
| | - Arif Daştan
- Department of Chemistry, Faculty of Sciences, Atatürk University, Erzurum, 25240, Turkey
| |
Collapse
|
17
|
Mavragani N, Kitos AA, Brusso JL, Murugesu M. Enhancing Magnetic Communication between Metal Centres: The Role of s-Tetrazine Based Radicals as Ligands. Chemistry 2021; 27:5091-5106. [PMID: 33079452 DOI: 10.1002/chem.202004215] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 10/19/2020] [Indexed: 12/31/2022]
Abstract
Although 1,2,4,5-tetrazines or s-tetrazines have been known in the literature for more than a century, their coordination chemistry has become increasingly popular in recent years due to their unique redox activity, multiple binding sites and their various applications. The electron-poor character of the ring and stabilization of the radical anion through all four nitrogen atoms in their metal complexes provide new aspects in molecular magnetism towards the synthesis of new high performing Single Molecule Magnets (SMMs). The scope of this review is to examine the role of s-tetrazine radical ligands in transition metal and lanthanide based SMMs and provide a critical overview of the progress thus far in this field. As well, general synthetic routes and new insights for the preparation of s-tetrazines are discussed, along with their redox activity and applications in various fields. Concluding remarks along with the limitations and perspectives of these ligands are discussed.
Collapse
Affiliation(s)
- Niki Mavragani
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie Curie, Ottawa, Ontario, K1N 6N5, Canada
| | - Alexandros A Kitos
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie Curie, Ottawa, Ontario, K1N 6N5, Canada
| | - Jaclyn L Brusso
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie Curie, Ottawa, Ontario, K1N 6N5, Canada
| | - Muralee Murugesu
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie Curie, Ottawa, Ontario, K1N 6N5, Canada
| |
Collapse
|
18
|
Lipunova GN, Nosova EV, Zyryanov GV, Charushin VN, Chupakhin ON. 1,2,4,5-Tetrazine derivatives as components and precursors of photo- and electroactive materials. Org Chem Front 2021. [DOI: 10.1039/d1qo00465d] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Synthetic approaches to 3,6-disubstituted-1,2,4,5-tetrazine systems are analyzed, and their properties attractive to practical applications in photo- and electroactive materials are overviewed.
Collapse
Affiliation(s)
- Galina N. Lipunova
- Postovsky Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences, 22 S. Kovalevskaya st./20 Akademicheskaya st., Ekaterinburg 620137, Russia
| | - Emiliya V. Nosova
- Postovsky Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences, 22 S. Kovalevskaya st./20 Akademicheskaya st., Ekaterinburg 620137, Russia
- Department of Organic and Biomolecular Chemistry, Ural Federal University, 19 Mira st., Ekaterinburg 620002, Russia
| | - Grigory V. Zyryanov
- Postovsky Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences, 22 S. Kovalevskaya st./20 Akademicheskaya st., Ekaterinburg 620137, Russia
- Department of Organic and Biomolecular Chemistry, Ural Federal University, 19 Mira st., Ekaterinburg 620002, Russia
| | - Valery N. Charushin
- Postovsky Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences, 22 S. Kovalevskaya st./20 Akademicheskaya st., Ekaterinburg 620137, Russia
- Department of Organic and Biomolecular Chemistry, Ural Federal University, 19 Mira st., Ekaterinburg 620002, Russia
| | - Oleg N. Chupakhin
- Postovsky Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences, 22 S. Kovalevskaya st./20 Akademicheskaya st., Ekaterinburg 620137, Russia
- Department of Organic and Biomolecular Chemistry, Ural Federal University, 19 Mira st., Ekaterinburg 620002, Russia
| |
Collapse
|
19
|
Xie Y, Fang Y, Huang Z, Tallon AM, am Ende CW, Fox JM. Divergent Synthesis of Monosubstituted and Unsymmetrical 3,6‐Disubstituted Tetrazines from Carboxylic Ester Precursors. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202005569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Yixin Xie
- Department of Chemistry and Biochemistry University of Delaware Newark DE 19716 USA
| | - Yinzhi Fang
- Department of Chemistry and Biochemistry University of Delaware Newark DE 19716 USA
| | - Zhen Huang
- Pfizer Worldwide Research and Development 1 Portland Street Cambridge MA 02139 USA
| | - Amanda M. Tallon
- Department of Chemistry and Biochemistry University of Delaware Newark DE 19716 USA
| | | | - Joseph M. Fox
- Department of Chemistry and Biochemistry University of Delaware Newark DE 19716 USA
| |
Collapse
|
20
|
Xie Y, Fang Y, Huang Z, Tallon AM, Am Ende CW, Fox JM. Divergent Synthesis of Monosubstituted and Unsymmetrical 3,6-Disubstituted Tetrazines from Carboxylic Ester Precursors. Angew Chem Int Ed Engl 2020; 59:16967-16973. [PMID: 32559350 PMCID: PMC7733736 DOI: 10.1002/anie.202005569] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 06/02/2020] [Indexed: 11/06/2022]
Abstract
Since tetrazines are important tools to the field of bioorthogonal chemistry, there is a need for new approaches to synthesize unsymmetrical and 3-monosubstituted tetrazines. Described here is a general, one-pot method for converting (3-methyloxetan-3-yl)methyl carboxylic esters into 3-thiomethyltetrazines. These versatile intermediates were applied to the synthesis of unsymmetrical tetrazines through Pd-catalyzed cross-coupling and in the first catalytic thioether reduction to access monosubstituted tetrazines. This method enables the development of new tetrazine compounds possessing a favorable combination of kinetics, small size, and hydrophilicity. It was applied to a broad range of aliphatic and aromatic ester precursors and to the synthesis of heterocycles including BODIPY fluorophores and biotin. In addition, a series of tetrazine probes for monoacylglycerol lipase (MAGL) were synthesized and the most reactive one was applied to the labeling of endogenous MAGL in live cells.
Collapse
Affiliation(s)
- Yixin Xie
- Department of Chemistry and Biochemistry, University of Delaware, Newark, DE, 19716, USA
| | - Yinzhi Fang
- Department of Chemistry and Biochemistry, University of Delaware, Newark, DE, 19716, USA
| | - Zhen Huang
- Pfizer Worldwide Research and Development, 1 Portland Street, Cambridge, MA, 02139, USA
| | - Amanda M Tallon
- Department of Chemistry and Biochemistry, University of Delaware, Newark, DE, 19716, USA
| | - Christopher W Am Ende
- Pfizer Worldwide Research and Development, Eastern Point Road, Groton, CT, 06340, USA
| | - Joseph M Fox
- Department of Chemistry and Biochemistry, University of Delaware, Newark, DE, 19716, USA
| |
Collapse
|
21
|
Miomandre F, Audebert P. 1,2,4,5-Tetrazines: An intriguing heterocycles family with outstanding characteristics in the field of luminescence and electrochemistry. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C-PHOTOCHEMISTRY REVIEWS 2020. [DOI: 10.1016/j.jphotochemrev.2020.100372] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
|
22
|
Stetsiuk O, Abhervé A, Avarvari N. 1,2,4,5-Tetrazine based ligands and complexes. Dalton Trans 2020; 49:5759-5777. [PMID: 32239040 DOI: 10.1039/d0dt00827c] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
One of the most intriguing nitrogen based aromatic heterocycles is 1,2,4,5-tetrazine or s-tetrazine (TTZ) thanks to its electron acceptor character and fluorescence properties and the possibilities of functionalization in the 3 and 6 positions allowing access to various ligands. In this review we focus on the two main families of TTZ based ligands, i.e. ditopic symmetric and monotopic non-symmetric, together with their metal complexes, with a special emphasis on their solid state structures and physical properties. After a description of the most representative complexes containing unsubstituted TTZ as a ligand, symmetric TTZ ligands and complexes derived thereof are discussed in the order: 3,6-bis(2-pyridyl)-tetrazine, 3,6-bis(3-pyridyl)-tetrazine, 3,6-bis(4-pyridyl)-tetrazine, 3,6-bis(2-pyrimidyl)-tetrazine, 3,6-bis(2-pyrazinyl)-tetrazine, 3,6-bis(monopicolylamine)-tetrazine, 3,6-bis(vanillin-hydrazinyl)-tetrazine and TTZ containing carboxylic acids. Remarkable results have been obtained in recent years for metal-organic frameworks and magnetic compounds in which magnetic coupling is enhanced when the tetrazine bridge is reduced to radical anions. Non-symmetric ligands, such as dipicolylamine-TTZ and monopicolylamine-TTZ, are comparatively more recent than the symmetric ones. They allow in principle the preparation of mononuclear complexes in a controlled manner, although binuclear complexes have been isolated as well. Moreover, in the monopicolylamine-TTZ-Cl ligand, deprotonation of the amine, thanks to the electron acceptor character of TTZ, afforded a negatively charged ligand equivalent of a guanidinate.
Collapse
Affiliation(s)
- Oleh Stetsiuk
- MOLTECH-Anjou, UMR 6200, CNRS, UNIV Angers, 2 bd Lavoisier, 49045 ANGERS Cedex, France.
| | | | | |
Collapse
|
23
|
Orozco-Ic M, Celaya CA, Sundholm D. Calculation of magnetic response properties of tetrazines. RSC Adv 2020; 10:18124-18130. [PMID: 35517234 PMCID: PMC9053762 DOI: 10.1039/d0ra01641a] [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] [Received: 02/20/2020] [Accepted: 05/01/2020] [Indexed: 12/18/2022] Open
Abstract
Magnetic response properties of 1,2,3,5-tetrazine derivatives including the newly synthesized 4,6-diphenyl-1,2,3,5-tetrazine have been studied computationally at the density functional theory (DFT) level. Calculations of magnetically induced current densities and induced magnetic fields show that the unsubstituted 1,2,3,5-tetrazine is almost as aromatic as benzene. Separating the magnetic shielding functions into molecular orbital components provided additional insights into the magnetic response. The aromatic character estimated from magnetically induced current densities and induced magnetic fields shows that NICSπzz(0) values and ring-current strengths yield about the same degree of aromaticity, whereas NICSzz(0) and NICSzz(1) values are contaminated by σ electron contributions. The studied 1,2,3,5-tetrazine derivatives are less aromatic than the unsubstituted one. Calculations of magnetic response properties of 4,6-diphenyl-1,2,3,5-tetrazine showed that it is the least aromatic among the studied molecules according to the ring-current criterion, while 4,6-[1,2,3,5]-ditetrazinyl-1,2,3,5-tetrazine is as aromatic as 4,6-dimethyl-1,2,3,5-tetrazine and slightly less aromatic than the unsubstituted 1,2,3,5-tetrazine. Magnetic response properties of 1,2,3,5-tetrazine derivatives including the newly synthesized 4,6-diphenyl-1,2,3,5-tetrazine have been studied computationally at the density functional theory level.![]()
Collapse
Affiliation(s)
- Mesías Orozco-Ic
- Department of Chemistry
- University of Helsinki
- FIN-00014 Helsinki
- Finland
| | - Christian A. Celaya
- Department of Chemistry
- University of Helsinki
- FIN-00014 Helsinki
- Finland
- Departamento de Materiales de Baja Dimensionalidad
| | - Dage Sundholm
- Department of Chemistry
- University of Helsinki
- FIN-00014 Helsinki
- Finland
| |
Collapse
|
24
|
Singh B, Bhatia R, Pani B, Gupta D. Synthesis, crystal structures and biological evaluation of new pyridazine derivatives. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2019.127084] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
25
|
Mboyi CD, Daher A, Khirzada N, Devillers CH, Cattey H, Fleurat-Lessard P, Roger J, Hierso JC. Synthesis and structural characterisation of bulky heptaaromatic (hetero)aryl o-substituted s-aryltetrazines. NEW J CHEM 2020. [DOI: 10.1039/d0nj02338h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Hexaphenylbenzene analogs with an electron-poor tetrazine core are synthesized in two high-yield steps from diphenyl-s-tetrazine. Crystal packing of these unique non-planar heptaaromatics is analyzed in details.
Collapse
Affiliation(s)
- Clève D. Mboyi
- Institut de Chimie Moléculaire de l’Université de Bourgogne (ICMUB UMR-CNRS 6302)
- Université de Bourgogne Franche-Comté (UBFC)
- 21078 Dijon
- France
| | - Ahmad Daher
- Institut de Chimie Moléculaire de l’Université de Bourgogne (ICMUB UMR-CNRS 6302)
- Université de Bourgogne Franche-Comté (UBFC)
- 21078 Dijon
- France
| | - Neelab Khirzada
- Institut de Chimie Moléculaire de l’Université de Bourgogne (ICMUB UMR-CNRS 6302)
- Université de Bourgogne Franche-Comté (UBFC)
- 21078 Dijon
- France
| | - Charles H. Devillers
- Institut de Chimie Moléculaire de l’Université de Bourgogne (ICMUB UMR-CNRS 6302)
- Université de Bourgogne Franche-Comté (UBFC)
- 21078 Dijon
- France
| | - Hélène Cattey
- Institut de Chimie Moléculaire de l’Université de Bourgogne (ICMUB UMR-CNRS 6302)
- Université de Bourgogne Franche-Comté (UBFC)
- 21078 Dijon
- France
| | - Paul Fleurat-Lessard
- Institut de Chimie Moléculaire de l’Université de Bourgogne (ICMUB UMR-CNRS 6302)
- Université de Bourgogne Franche-Comté (UBFC)
- 21078 Dijon
- France
| | - Julien Roger
- Institut de Chimie Moléculaire de l’Université de Bourgogne (ICMUB UMR-CNRS 6302)
- Université de Bourgogne Franche-Comté (UBFC)
- 21078 Dijon
- France
| | - Jean-Cyrille Hierso
- Institut de Chimie Moléculaire de l’Université de Bourgogne (ICMUB UMR-CNRS 6302)
- Université de Bourgogne Franche-Comté (UBFC)
- 21078 Dijon
- France
| |
Collapse
|
26
|
|
27
|
Savastano M, García-Gallarín C, López de la Torre MD, Bazzicalupi C, Bianchi A, Melguizo M. Anion-π and lone pair-π interactions with s-tetrazine-based ligands. Coord Chem Rev 2019. [DOI: 10.1016/j.ccr.2019.06.016] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
|
28
|
Dipicolylamino-methoxy-1,2,4,5-tetrazine ligand and its metal complexes: Structural and photophysical studies. Polyhedron 2019. [DOI: 10.1016/j.poly.2019.05.050] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
29
|
Stetsiuk O, Petrusenko SR, Sorace L, Lupan A, Attia AAA, Kokozay VN, El-Ghayoury A, Avarvari N. Versatile coordination behaviour of the chloro-tetrazine-picolylamine ligand: mixed-valence binuclear Cu(i)/Cu(ii) complexes. Dalton Trans 2019; 48:11966-11977. [PMID: 31313787 DOI: 10.1039/c9dt02379h] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The 3-Cl-6-amino-(2'-picolyl)-1,2,4,5-tetrazine ligand HL1 has been synthesized and structurally characterized. Its versatile coordination behavior has been evidenced through reactions with Cu(Hfac)2 and Cu(triflate)2 precursors, which provided mixed-valence bimetallic Cu1.5Cu1.5 complexes [Cu2(μ-Cl)(L1)2] 2 and [Cu2(μ-triflate)(L1)2] 5. Changing the Cu(ii) precursor and the solvent leads to the formation of mononuclear octahedral Cu(ii) complexes [CuCl2(HL1)2]·2CH3CN 3 and [Cu(Hfac)2(HL1)] 4, in which only the amino-pyridine unit is involved in the coordination of the metal center. In contrast, in complexes 2 and 5, the ligands are deprotonated and bridge the metal centers as pyridine-amido-tetrazine fragments, while a bridging chloride or triflate ligand completes the coordination sphere of the metal ions. The Cu-Cu distances of 2.4313(4) Å in 2 and 2.5198(10) Å in 5 lie among the shorter values within mixed-valence bimetallic Cu complexes. Mixed-valence character is strongly supported by DFT calculations, showing the equal repartition of the unpaired electron between the two metal centers.
Collapse
Affiliation(s)
- Oleh Stetsiuk
- MOLTECH-Anjou, UMR 6200, CNRS, UNIV Angers, 2 bd Lavoisier, 49045 ANGERS Cedex, France. and Department of Inorganic Chemistry, Taras Shevchenko National University of Kyiv, Volodymyrska str. 64/13, Kyiv 01601, Ukraine
| | - Svitlana R Petrusenko
- Department of Inorganic Chemistry, Taras Shevchenko National University of Kyiv, Volodymyrska str. 64/13, Kyiv 01601, Ukraine
| | - Lorenzo Sorace
- Dipartimento di Chimica "Ugo Schiff" and UdR INSTM, Università di Firenze, 50019 Sesto Fiorentino, Italy
| | - Alexandru Lupan
- Faculty of Chemistry and Chemical Engineering, Babes-Bolyai University, Cluj-Napoca, Romania
| | - Amr A A Attia
- Faculty of Chemistry and Chemical Engineering, Babes-Bolyai University, Cluj-Napoca, Romania
| | - Vladimir N Kokozay
- Department of Inorganic Chemistry, Taras Shevchenko National University of Kyiv, Volodymyrska str. 64/13, Kyiv 01601, Ukraine
| | - Abdelkrim El-Ghayoury
- MOLTECH-Anjou, UMR 6200, CNRS, UNIV Angers, 2 bd Lavoisier, 49045 ANGERS Cedex, France.
| | - Narcis Avarvari
- MOLTECH-Anjou, UMR 6200, CNRS, UNIV Angers, 2 bd Lavoisier, 49045 ANGERS Cedex, France.
| |
Collapse
|
30
|
Lv LP, Zhou XF, Shi HB, Gao JR, Hu WX. Novel Synthesis, Characterisation and Antitumour Activity of Dimethyl-3,6-di(Aryl)-1,4-Dihydro-1,2,4,5-Tetrazine-1,4-Dicarboxylates. JOURNAL OF CHEMICAL RESEARCH 2019. [DOI: 10.3184/174751914x14001747558135] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- Lu-Ping Lv
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, P.R. China
- Linjiang College, Hangzhou Vocational and Technical College, Hangzhou 310018, P.R. China
| | - Xiao-Feng Zhou
- Linjiang College, Hangzhou Vocational and Technical College, Hangzhou 310018, P.R. China
| | - Hai-Bo Shi
- Zhejiang Medical College, Zhejiang Ningbo 315100, P.R. China
| | - Jian-Rong Gao
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, P.R. China
| | - Wei-Xiao Hu
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, P.R. China
| |
Collapse
|
31
|
Mohamed TA, Soliman UA, Zoghaib WM. Raman, infrared and NMR spectra, vibrational assignments and quantum mechanical calculations of centrosymmetric 3,6-Dicholoro-1,2,4,5-tetrazine. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2018.10.047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
32
|
Wzgarda-Raj K, Rybarczyk-Pirek AJ, Wojtulewski S, Palusiak M. Crystal structure of 3,6-bis-(pyridin-2-yl)-1,4-di-hydro-1,2,4,5-tetra-zine. Acta Crystallogr E Crystallogr Commun 2019; 75:86-88. [PMID: 30713740 PMCID: PMC6323887 DOI: 10.1107/s205698901801753x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Accepted: 12/11/2018] [Indexed: 11/30/2022]
Abstract
The structure of the title compound, C12H10N6, at 100 K has monoclinic (P21/n) symmetry. Crystals were obtained as a yellow solid by reduction of 3,6-bis-(pyridin-2-yl)-1,2,4,5-tetra-zine. The structure displays inter-molecular hydrogen bonding of the N-H⋯N type, ordering mol-ecules into infinite ribbons extending along the [100] direction.
Collapse
Affiliation(s)
- Kinga Wzgarda-Raj
- Group of Theoretical and Structural Chemistry, Department of Physical Chemistry, Faculty of Chemistry, University of Łódź, Pomorska 163/165, 90-236, Łódź, Poland
| | - Agnieszka J. Rybarczyk-Pirek
- Group of Theoretical and Structural Chemistry, Department of Physical Chemistry, Faculty of Chemistry, University of Łódź, Pomorska 163/165, 90-236, Łódź, Poland
| | - Sławomir Wojtulewski
- Department of Theoretical Chemistry, University of Białystok, Ciołkowskiego, 1K, 15-245 Białystok, Poland
| | - Marcin Palusiak
- Group of Theoretical and Structural Chemistry, Department of Physical Chemistry, Faculty of Chemistry, University of Łódź, Pomorska 163/165, 90-236, Łódź, Poland
| |
Collapse
|
33
|
Environmental degradability of 1,2,3,4-tetrazine-1,3-dioxide-functionalized FOX-7 derivatives with high energy and low sensitivity: a computational evaluation. Struct Chem 2018. [DOI: 10.1007/s11224-018-1197-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
34
|
Moses Abraham B, Prathap Kumar J, Vaitheeswaran G. High-Pressure Studies of Hydrogen-Bonded Energetic Material 3,6-Dihydrazino- s-tetrazine Using DFT. ACS OMEGA 2018; 3:9388-9399. [PMID: 31459072 PMCID: PMC6645062 DOI: 10.1021/acsomega.8b00806] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Accepted: 07/25/2018] [Indexed: 06/10/2023]
Abstract
Hydrogen bonding is an important noncovalent interaction that plays a key role in most of the CHNO-based energetic materials, which has a great impact on the structural, stability, and vibrational properties. By analyzing the structural changes, IR spectra, and the Hirshfeld surfaces, we investigated the high-pressure behavior of 3,6-dihydrazino-s-tetrazine (DHT) to provide detailed description of hydrogen bonding interactions using dispersion-corrected density functional theory. The strengthening of hydrogen bonding is observed by the pressure-induced weakening of covalent N-H bonds, which is consistent with the red shift of NH/NH2 stretching vibrational modes. The intermolecular interactions in DHT crystals lead to more compact and stable structures that can increase the density but diminish the heat of detonation, Q. The calculated detonation properties of DHT (D = 7.62 km/s, P = 25.19 GPa) are slightly smaller than those of a similar explosive 3,6-bis-nitroguanyl-1,2,4,5-tetrazine (D = 7.9 km/s, P = 27.36 GPa). Overall, the crystallographic and spectroscopic results along with Hirshfeld surface analysis as a function of pressure reveal the presence of strong hydrogen bonding networks in the crystal structure of DHT.
Collapse
Affiliation(s)
- B. Moses Abraham
- Advanced
Centre of Research in High Energy Materials (ACRHEM) and School of Physics, University of Hyderabad, Prof. C. R. Rao Road, Gachibowli, Hyderabad 500046 Telangana, India
| | - J. Prathap Kumar
- Advanced
Centre of Research in High Energy Materials (ACRHEM) and School of Physics, University of Hyderabad, Prof. C. R. Rao Road, Gachibowli, Hyderabad 500046 Telangana, India
| | - G. Vaitheeswaran
- Advanced
Centre of Research in High Energy Materials (ACRHEM) and School of Physics, University of Hyderabad, Prof. C. R. Rao Road, Gachibowli, Hyderabad 500046 Telangana, India
| |
Collapse
|
35
|
Parvari G, Levi M, Preshel Zlatsin M, Panz L, Grinstein D, Gottlieb L, Denekamp C, Eichen Y. Proposed Proton-Transfer Mechanism for the Initial Decomposition Steps of BTATz. J Phys Chem A 2018; 122:5789-5798. [PMID: 29894189 DOI: 10.1021/acs.jpca.7b12217] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The first steps in the gas-phase decomposition mechanism of N3,N6-bis (1 H-tetrazol-5-yl)-1,2,4,5-tetrazine-3,6-diamine, BTATz, anions and the kinetic isotope effects in these processes were studied using combined multistage mass spectrometry (MS/MS) and computational techniques. Two major fragmentation processes, the exergonic loss of nitrogen molecules and the endergonic loss of hydrazoic acid, were identified. The observation of a primary isotope effect supported by calculations suggests that the loss of a nitrogen molecule from the tetrazole ring involves proton migration, either to or within the terazole ring, as a rate-determining step. The fragmentation of a hydrazoic acid occurs through an asymmetrical retro-pericyclic reaction. Calculations show the relevance of these mechanisms to neutral BTATz. Our findings may contribute to the understanding of decomposition routes in these nitrogen-rich energetic materials and allow tailoring their reactivity and decomposition pathways for better control of performance.
Collapse
Affiliation(s)
- Galit Parvari
- Schulich Faculty of Chemistry , Technion-Israel Institute of Technology , Technion City, Haifa 3200008 , Israel
| | - Moran Levi
- Schulich Faculty of Chemistry , Technion-Israel Institute of Technology , Technion City, Haifa 3200008 , Israel
| | - Maya Preshel Zlatsin
- Schulich Faculty of Chemistry , Technion-Israel Institute of Technology , Technion City, Haifa 3200008 , Israel
| | - Larisa Panz
- Schulich Faculty of Chemistry , Technion-Israel Institute of Technology , Technion City, Haifa 3200008 , Israel
| | - Dan Grinstein
- Schulich Faculty of Chemistry , Technion-Israel Institute of Technology , Technion City, Haifa 3200008 , Israel
| | - Levi Gottlieb
- RAFAEL, Advanced Defense Systems Limited , P.O. Box 2250, Haifa 3102101 , Israel
| | - Chagit Denekamp
- RAFAEL, Advanced Defense Systems Limited , P.O. Box 2250, Haifa 3102101 , Israel
| | - Yoav Eichen
- Schulich Faculty of Chemistry , Technion-Israel Institute of Technology , Technion City, Haifa 3200008 , Israel
| |
Collapse
|
36
|
Śniechowska J, Paluch P, Pawlak T, Bujacz GD, Danikiewicz W, Potrzebowski MJ. New synthetic pathway leading to oxospirochlorins. RSC Adv 2018; 8:21354-21362. [PMID: 35539919 PMCID: PMC9080854 DOI: 10.1039/c8ra02445f] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Accepted: 06/04/2018] [Indexed: 11/21/2022] Open
Abstract
In this work we propose a completely new approach for the synthesis of spirochlorin derivatives based on the use of an imino-keto intermediate formed in situ from 2-amino-5,10,15,20-tetraphenylporphyrins and inverse electron demand Diels-Alder (iEDDA) cycloaddition with 3,6-di-2-pyridyl-1,2,4,5-tetrazine. The mechanism of reaction was analyzed employing theoretical methods by comparing the difference in energy of Frontier Molecular Orbitals (FMO) for appropriate reagents. Ground-state molecular electrostatic (ESP) potential maps were employed as additional tools allowing explanation of the reactivity of substrates. The new class of spirochlorin compounds was fully characterized by means of mass spectrometry, IR, liquid and solid state NMR and X-ray crystallography. Correlation between molecular structure and optical properties for the obtained title compounds is discussed.
Collapse
Affiliation(s)
- Justyna Śniechowska
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences Sienkiewicza 112 90-363 Lodz Poland
| | - Piotr Paluch
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences Sienkiewicza 112 90-363 Lodz Poland
| | - Tomasz Pawlak
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences Sienkiewicza 112 90-363 Lodz Poland
| | - Grzegorz D Bujacz
- Institute of Technical Biochemistry, Lodz University of Technology Stefanowskiego 4/10 90-924 Lodz Poland
| | - Witold Danikiewicz
- Institute of Organic Chemistry, Polish Academy of Sciences Kasprzaka 44/52 01-224 Warsaw Poland
| | - Marek J Potrzebowski
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences Sienkiewicza 112 90-363 Lodz Poland
| |
Collapse
|
37
|
Chen X, Zhang C, Bai Y, Guo Z, Yao Y, Song J, Ma H. Synthesis, crystal structure and thermal properties of an unsymmetrical 1,2,4,5-tetrazine energetic derivative. ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY 2018; 74:666-672. [PMID: 29870001 DOI: 10.1107/s2053229618006617] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Accepted: 04/30/2018] [Indexed: 11/11/2022]
Abstract
A new unsymmetrical s-tetrazine derivative, namely 4-({2-[6-(3,5-dimethyl-1H-pyrazol-1-yl)-1,2,4,5-tetrazin-3-yl]hydrazin-1-ylidene}methyl)phenol (DPHM), C14H14N8O, was synthesized based on 3-(3,5-dimethylpyrazol-1-yl)-6-hydrazinyl-s-tetrazine (DPHT). The structure was characterized by elemental analysis and single-crystal X-ray diffraction. Crystal structure determination shows that DPHM crystallizes in the monoclinic P21/c space group with high coplanarity and a zigzag layered structure. In addition, its thermal behaviour was investigated by DSC and TG-DTG methods. The thermal safety of DPHM was evaluated by self-accelerating decomposition temperature (TSADT), critical temperature of thermal explosion (Tb), entropy of activation (ΔS=), enthalpy of activation (ΔH=) and free energy of activation (ΔG=). Meanwhile, the kinetic parameters and specific heat capacity of DPHM were also determined. The results show that DPHM has better stability and detonation properties than 3-(2-benzylidenehydrazin-1-yl)-6-(3,5-dimethylpyrazol-1-yl)-s-tetrazine (DAHBTz), due to the introduction of a hydroxy group, which increases the number of hydrogen-bond interactions and improves the stability and density of DPHM. This study demonstrates that the performance of an explosive can be optimized through structural modification.
Collapse
Affiliation(s)
- Xiang Chen
- School of Chemical Engineering, Northwest University, Shaanxi Xi'an 710069, People's Republic of China
| | - Cong Zhang
- School of Chemical Engineering, Northwest University, Shaanxi Xi'an 710069, People's Republic of China
| | - Yang Bai
- School of Chemical Engineering, Northwest University, Shaanxi Xi'an 710069, People's Republic of China
| | - Zhaoqi Guo
- School of Chemical Engineering, Northwest University, Shaanxi Xi'an 710069, People's Republic of China
| | - Yanru Yao
- School of Chemical Engineering, Northwest University, Shaanxi Xi'an 710069, People's Republic of China
| | - Jirong Song
- Conservation Technology Department, the Palace Museum, Beijing 100009, People's Republic of China
| | - Haixia Ma
- School of Chemical Engineering, Northwest University, Shaanxi Xi'an 710069, People's Republic of China
| |
Collapse
|
38
|
Kocak R, Dastan A, Saracoglu N. Synthesis of Pyridazine and Pyrrole Analogues of 2-Aminotetralin as Potential Dopaminergics. J Heterocycl Chem 2018. [DOI: 10.1002/jhet.3180] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Ramazan Kocak
- Department of Chemistry, Faculty of Sciences; Atatürk University; Erzurum 25240 Turkey
| | - Arif Dastan
- Department of Chemistry, Faculty of Sciences; Atatürk University; Erzurum 25240 Turkey
| | - Nurullah Saracoglu
- Department of Chemistry, Faculty of Sciences; Atatürk University; Erzurum 25240 Turkey
| |
Collapse
|
39
|
Affiliation(s)
- Tawfik A. Khattab
- Dyeing, Printing and Auxiliaries Department; Textile Research Division; National Research Centre; Cairo 12622 Egypt
| |
Collapse
|
40
|
Stetsiuk O, El-Ghayoury A, Lloret F, Julve M, Avarvari N. Mononuclear and One-Dimensional Cobalt(II) Complexes with the 3,6-Bis(picolylamino)-1,2,4,5-tetrazine Ligand. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201701224] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Oleh Stetsiuk
- Laboratoire MOLTECH-Anjou, UMR 6200; CNRS Université d'Angers, UFR Sciences, Bât. K; 2 Bd. Lavoisier 49045 Angers France
- Department of Inorganic Chemistry; Taras Shevchenko National University of Kyiv; Volodymyrska str. 64/13 01601 Kyiv Ukraine
| | - Abdelkrim El-Ghayoury
- Laboratoire MOLTECH-Anjou, UMR 6200; CNRS Université d'Angers, UFR Sciences, Bât. K; 2 Bd. Lavoisier 49045 Angers France
| | - Francesc Lloret
- Instituto de Ciencia Molecular (ICMol)/Departament de Química Inorgànica; Universitat de València; C/Catedrático José Beltrán 2 46980 Paterna (Valencia) Spain
| | - Miguel Julve
- Instituto de Ciencia Molecular (ICMol)/Departament de Química Inorgànica; Universitat de València; C/Catedrático José Beltrán 2 46980 Paterna (Valencia) Spain
| | - Narcis Avarvari
- Laboratoire MOLTECH-Anjou, UMR 6200; CNRS Université d'Angers, UFR Sciences, Bât. K; 2 Bd. Lavoisier 49045 Angers France
| |
Collapse
|
41
|
Bender AM, Chopko TC, Bridges TM, Lindsley CW. Preparation of Unsymmetrical 1,2,4,5-Tetrazines via a Mild Suzuki Cross-Coupling Reaction. Org Lett 2017; 19:5693-5696. [PMID: 28976768 DOI: 10.1021/acs.orglett.7b02868] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
N-Alkyl substituted chlorotetrazines were coupled with various boronic acids under Suzuki conditions in high yield at room temperature, giving a mild and straightforward synthetic route toward diverse unsymmetrical 1,2,4,5-tetrazines, a rare heteroarene. This chemistry not only expands the known substrate scope of tetrazine cross-coupling reactions but also allows for the synthesis of novel, tetrazine-containing biologically active molecules with improved DMPK properties.
Collapse
Affiliation(s)
- Aaron M Bender
- Departments of Pharmacology and Chemistry, Vanderbilt Center for Neuroscience Drug Discovery, Vanderbilt University , Nashville, Tennessee 37232, United States
| | - Trevor C Chopko
- Departments of Pharmacology and Chemistry, Vanderbilt Center for Neuroscience Drug Discovery, Vanderbilt University , Nashville, Tennessee 37232, United States
| | - Thomas M Bridges
- Departments of Pharmacology and Chemistry, Vanderbilt Center for Neuroscience Drug Discovery, Vanderbilt University , Nashville, Tennessee 37232, United States
| | - Craig W Lindsley
- Departments of Pharmacology and Chemistry, Vanderbilt Center for Neuroscience Drug Discovery, Vanderbilt University , Nashville, Tennessee 37232, United States
| |
Collapse
|
42
|
|
43
|
Kaya AA, Salamci E, Menzek A, Erdem SS, Şahin E, Ecer K. Reaction of 9-oxabicyclo[4.2.1]non-7-ene-1-ol with tetrazine: An unusually facile intramolecular rearrangement. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.07.040] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
44
|
Kang K, Park J, Kim E. Tetrazine ligation for chemical proteomics. Proteome Sci 2017; 15:15. [PMID: 28674480 PMCID: PMC5485739 DOI: 10.1186/s12953-017-0121-5] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2017] [Accepted: 06/15/2017] [Indexed: 12/12/2022] Open
Abstract
Determining small molecule-target protein interaction is essential for the chemical proteomics. One of the most important keys to explore biological system in chemical proteomics field is finding first-class molecular tools. Chemical probes can provide great spatiotemporal control to elucidate biological functions of proteins as well as for interrogating biological pathways. The invention of bioorthogonal chemistry has revolutionized the field of chemical biology by providing superior chemical tools and has been widely used for investigating the dynamics and function of biomolecules in live condition. Among 20 different bioorthogonal reactions, tetrazine ligation has been spotlighted as the most advanced bioorthogonal chemistry because of their extremely faster kinetics and higher specificity than others. Therefore, tetrazine ligation has a tremendous potential to enhance the proteomic research. This review highlights the current status of tetrazine ligation reaction as a molecular tool for the chemical proteomics.
Collapse
Affiliation(s)
- Kyungtae Kang
- Department of Applied Chemistry, Kyung Hee University, Yongin, Gyeonggi 17104 Republic of Korea
| | - Jongmin Park
- Center for Systems Biology, Massachusetts General Hospital, Harvard Medical School, 185 Cambridge St, CPZN 5206, Boston, Massachusetts 02114 USA
| | - Eunha Kim
- Department of Molecular Science and Technology, Ajou University, Suwon, 16499 Republic of Korea
| |
Collapse
|
45
|
Li Y, Miomandre F, Clavier G, Galmiche L, Alain-Rizzo V, Audebert P. Inverse Electron Demand Diels−Alder Reactivity and Electrochemistry of New Tetrazine Derivatives. ChemElectroChem 2017. [DOI: 10.1002/celc.201600498] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yuan Li
- PPSM, CNRS UMR 8531; Ecole Normale Supérieure de Cachan; Université Paris-Saclay; 61 Avenue du Président Wilson 94235 Cachan France
| | - Fabien Miomandre
- PPSM, CNRS UMR 8531; Ecole Normale Supérieure de Cachan; Université Paris-Saclay; 61 Avenue du Président Wilson 94235 Cachan France
| | - Gilles Clavier
- PPSM, CNRS UMR 8531; Ecole Normale Supérieure de Cachan; Université Paris-Saclay; 61 Avenue du Président Wilson 94235 Cachan France
| | - Laurent Galmiche
- PPSM, CNRS UMR 8531; Ecole Normale Supérieure de Cachan; Université Paris-Saclay; 61 Avenue du Président Wilson 94235 Cachan France
| | - Valérie Alain-Rizzo
- PPSM, CNRS UMR 8531; Ecole Normale Supérieure de Cachan; Université Paris-Saclay; 61 Avenue du Président Wilson 94235 Cachan France
| | - Pierre Audebert
- PPSM, CNRS UMR 8531; Ecole Normale Supérieure de Cachan; Université Paris-Saclay; 61 Avenue du Président Wilson 94235 Cachan France
| |
Collapse
|
46
|
Lacelle T, Brunet G, Pialat A, Holmberg RJ, Lan Y, Gabidullin B, Korobkov I, Wernsdorfer W, Murugesu M. Single-molecule magnet behaviour in a tetranuclear DyIII complex formed from a novel tetrazine-centered hydrazone Schiff base ligand. Dalton Trans 2017; 46:2471-2478. [DOI: 10.1039/c6dt04413a] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A tetranuclear dysprosium complex, bridged by a novel tetrazine-centered Schiff base ligand, exhibits ferromagnetic exchange coupling and a large anisotropic barrier.
Collapse
Affiliation(s)
- T. Lacelle
- Department of Chemistry and Biomolecular Sciences
- University of Ottawa
- Ottawa
- Canada
| | - G. Brunet
- Department of Chemistry and Biomolecular Sciences
- University of Ottawa
- Ottawa
- Canada
| | - A. Pialat
- Department of Chemistry and Biomolecular Sciences
- University of Ottawa
- Ottawa
- Canada
| | - R. J. Holmberg
- Department of Chemistry and Biomolecular Sciences
- University of Ottawa
- Ottawa
- Canada
| | - Y. Lan
- Institut Néel
- CNRS and Université Grenoble Alpes
- 38042 Grenoble
- France
| | - B. Gabidullin
- Department of Chemistry and Biomolecular Sciences
- University of Ottawa
- Ottawa
- Canada
| | - I. Korobkov
- Department of Chemistry and Biomolecular Sciences
- University of Ottawa
- Ottawa
- Canada
| | - W. Wernsdorfer
- Institut Néel
- CNRS and Université Grenoble Alpes
- 38042 Grenoble
- France
- Physikalisches Institut
| | - M. Murugesu
- Department of Chemistry and Biomolecular Sciences
- University of Ottawa
- Ottawa
- Canada
| |
Collapse
|
47
|
Hong L, Ahles S, Strauss MA, Logemann C, Wegner HA. Synthesis of 2,3-diaza-anthraquinones via the bidentate Lewis acid catalysed inverse electron-demand Diels–Alder (IEDDA) reaction. Org Chem Front 2017. [DOI: 10.1039/c7qo00172j] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new synthesis of aza-anthraquinones and substituted anthraquinones via bidentate Lewis acid catalysis has been developed.
Collapse
Affiliation(s)
- Longcheng Hong
- Institute of Organic Chemistry
- Justus Liebig University Giessen Heinrich-Buff-Ring 17
- 35392 Giessen
- Germany
| | - Sebastian Ahles
- Institute of Organic Chemistry
- Justus Liebig University Giessen Heinrich-Buff-Ring 17
- 35392 Giessen
- Germany
| | - Marcel A. Strauss
- Institute of Organic Chemistry
- Justus Liebig University Giessen Heinrich-Buff-Ring 17
- 35392 Giessen
- Germany
| | - Christian Logemann
- Institute of Inorganic and Analytical Chemistry
- Justus Liebig University Giessen Heinrich-Buff-Ring 17
- 35392 Giessen
- Germany
| | - Hermann A. Wegner
- Institute of Organic Chemistry
- Justus Liebig University Giessen Heinrich-Buff-Ring 17
- 35392 Giessen
- Germany
| |
Collapse
|
48
|
Ortiz-Gomez I, Ortega-Muñoz M, Salinas-Castillo A, Álvarez-Bermejo JA, Ariza-Avidad M, de Orbe-Payá I, Santoyo-Gonzalez F, Capitan-Vallvey LF. Tetrazine-based chemistry for nitrite determination in a paper microfluidic device. Talanta 2016; 160:721-728. [DOI: 10.1016/j.talanta.2016.08.021] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2016] [Revised: 07/30/2016] [Accepted: 08/04/2016] [Indexed: 10/21/2022]
|
49
|
Jivan F, Yegappan R, Pearce H, Carrow JK, McShane M, Gaharwar AK, Alge DL. Sequential Thiol–Ene and Tetrazine Click Reactions for the Polymerization and Functionalization of Hydrogel Microparticles. Biomacromolecules 2016; 17:3516-3523. [DOI: 10.1021/acs.biomac.6b00990] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Faraz Jivan
- Department of Biomedical Engineering, ‡Department of Materials Science and Engineering, and §Center for Remote Health Technologies and Systems, Texas A&M University, College Station, Texas 77843, United States
| | - Ramanathan Yegappan
- Department of Biomedical Engineering, ‡Department of Materials Science and Engineering, and §Center for Remote Health Technologies and Systems, Texas A&M University, College Station, Texas 77843, United States
| | - Hannah Pearce
- Department of Biomedical Engineering, ‡Department of Materials Science and Engineering, and §Center for Remote Health Technologies and Systems, Texas A&M University, College Station, Texas 77843, United States
| | - James K. Carrow
- Department of Biomedical Engineering, ‡Department of Materials Science and Engineering, and §Center for Remote Health Technologies and Systems, Texas A&M University, College Station, Texas 77843, United States
| | - Michael McShane
- Department of Biomedical Engineering, ‡Department of Materials Science and Engineering, and §Center for Remote Health Technologies and Systems, Texas A&M University, College Station, Texas 77843, United States
| | - Akhilesh K. Gaharwar
- Department of Biomedical Engineering, ‡Department of Materials Science and Engineering, and §Center for Remote Health Technologies and Systems, Texas A&M University, College Station, Texas 77843, United States
| | - Daniel L. Alge
- Department of Biomedical Engineering, ‡Department of Materials Science and Engineering, and §Center for Remote Health Technologies and Systems, Texas A&M University, College Station, Texas 77843, United States
| |
Collapse
|
50
|
Structural, thermochemical and detonation performance of derivatives of 1,2,4,5-tetrazine and 1,4 N-oxide 1,2,4,5-tetrazine as new high-performance and nitrogen-rich energetic materials. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2016. [DOI: 10.1007/s13738-016-0957-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|