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Bonaldi L, Bortoluzzi M, Zacchini S, Pampaloni G, Marchetti F, Biancalana L. Triazine Chalcogenones from Thiocyanate or Selenocyanate Addition to Tetrazine Ligands in Ruthenium Arene Complexes. Inorg Chem 2023; 62:7814-7833. [PMID: 37167024 DOI: 10.1021/acs.inorgchem.3c00459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
The chemistry of 1,2,4,5-tetrazines has attracted considerable interest both from a synthetic and applicative standpoint. Recently, regioselective reactions with alkynes and alkenes have been reported to be favored once the tetrazine ring is coordinated to Re(I), Ru(II), and Ir(III) centers. Aiming to further explore the effects of metal coordination, herein, we unveil the unexplored reactivity of tetrazines with chalcogenocyanate anions. Thus, ruthenium(II) tetrazine complexes, [RuCl{κ2N-3-(2-pyridyl)-6-R-1,2,4,5-tetrazine}(η6-arene)]+ (arene = p-cymene, R = H, [1a]+, R = Me, [1b]+, R = 2-pyridyl, [1c]+; arene = C6Me6, R = H, [1d]+, R = Me, [1e]+; PF6- salts), reacted quantitatively and in mild conditions with M(ECN) salts (M = Na, K, Bu4N; E = O, S, Se). The addition of thiocyanate or selenocyanate to the tetrazine ligand is regioselective and afforded, via N2 release, 1,2,4-triazine-5-chalcogenone heterocycles, the one with selenium being unprecedented. The novel ruthenium complexes [RuCl{κ2N-(2-pyridyl)}{triazine chalcogenone}(η6-arene)] 2a-e (sulfur), 3b, 3d, and 3e (selenium) were characterized by analytical (CHNS analyses, conductivity), spectroscopic (IR, multinuclear and two-dimensional (2D) NMR), and spectrometric (electrospray ionization mass spectrometry (ESI-MS)) techniques. According to density functional theory (DFT) calculations, the nucleophilic attack of SCN- on the tetrazine ring is kinetically driven. Compound 2b is selectively and reversibly mono-protonated on the triazine ring by HCl or other strong acids, affording a single tautomer. When reactions of chalcogenocyanates were performed on the 2,2'-bipyridine (bpy) complex [RuCl(bpy)(η6-p-cymene)]+, the chloride substitution products [Ru(ECN)(bpy)(η6-p-cymene)]+ (E = O, [4]+; E = S, [5]+; E = Se, [6]+) were obtained in 82-90% yields (PF6- salts). Combined spectroscopic data (IR, 1H/13C/77Se NMR) was revealed to be a useful tool to study the linkage isomerism of the chalcogenocyanate ligand in [4-6]+.
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Affiliation(s)
- Lorenzo Bonaldi
- Department of Chemistry and Industrial Chemistry, University of Pisa, Via G. Moruzzi 13, I-56124 Pisa, Italy
| | - Marco Bortoluzzi
- Department of Molecular Sciences and Nanosystems, Ca' Foscari University of Venice, Via Torino 155, I-30175 Mestre, Venezia, Italy
| | - Stefano Zacchini
- Department of Industrial Chemistry "Toso Montanari", University of Bologna, Viale del Risorgimento 4, I-40136 Bologna, Italy
| | - Guido Pampaloni
- Department of Chemistry and Industrial Chemistry, University of Pisa, Via G. Moruzzi 13, I-56124 Pisa, Italy
| | - Fabio Marchetti
- Department of Chemistry and Industrial Chemistry, University of Pisa, Via G. Moruzzi 13, I-56124 Pisa, Italy
| | - Lorenzo Biancalana
- Department of Chemistry and Industrial Chemistry, University of Pisa, Via G. Moruzzi 13, I-56124 Pisa, Italy
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Autoxidation of 4-Hydrazinylquinolin-2(1 H)-one; Synthesis of Pyridazino[4,3- c:5,6- c']diquinoline-6,7(5 H,8 H)-diones. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27072125. [PMID: 35408525 PMCID: PMC9000902 DOI: 10.3390/molecules27072125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Revised: 03/16/2022] [Accepted: 03/21/2022] [Indexed: 11/16/2022]
Abstract
An efficient synthesis of a series of pyridazino[4,3-c:5,6-c']diquinolines was achieved via the autoxidation of 4-hydrazinylquinolin-2(1H)-ones. IR, NMR (1H and 13C), mass spectral data, and elemental analysis were used to fit and elucidate the structures of the newly synthesized compounds. X-ray structure analysis and theoretical calculations unequivocally proved the formation of the structure. The possible mechanism for the reaction is also discussed.
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Hamed MY, Aly AF, Abdullah NH, Ismail MF. Synthesis, Characterization and Antifungal Evaluation of Novel Pyridazin-3(2 H)-One Derivatives. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2022.2044865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Mai Y. Hamed
- Department of Chemistry, Faculty of Science, Ain Shams University, Cairo, Egypt
- Central Agricultural Pesticide Lab., Pesticide Formulations Department, Agricultural Research Center, Giza, Egypt
| | - Aly Fahmy Aly
- Central Agricultural Pesticide Lab., Pesticide Formulations Department, Agricultural Research Center, Giza, Egypt
| | - Nashwa Hamed Abdullah
- Botany and Microbiology Department, Faculty of Science, Helwan University, Cairo, Egypt
| | - Mahmoud F. Ismail
- Department of Chemistry, Faculty of Science, Ain Shams University, Cairo, Egypt
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Ag-catalyzed decarboxylative acylation of pyridazines using α-keto acids in aqueous media. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2020.152691] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Ali YM, Ismail MF, Abu El‐Azm FSM, Marzouk MI. Design, Synthesis, and Pharmacological Assay of Novel Compounds Based on Pyridazine Moiety as Potential Antitumor Agents. J Heterocycl Chem 2019. [DOI: 10.1002/jhet.3662] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Yasmeen M. Ali
- Department of Chemistry, Faculty of ScienceAin Shams University Abbassia Cairo 11566 Egypt
| | - Mahmoud F. Ismail
- Department of Chemistry, Faculty of ScienceAin Shams University Abbassia Cairo 11566 Egypt
| | - Fatma S. M. Abu El‐Azm
- Department of Chemistry, Faculty of ScienceAin Shams University Abbassia Cairo 11566 Egypt
| | - Magda I. Marzouk
- Department of Chemistry, Faculty of ScienceAin Shams University Abbassia Cairo 11566 Egypt
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Synthesis and structural studies of 3,6-disubstituted-bis-1,2,4-triazolo-[4,3-b][3′,4′-f]pyridazines. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.02.082] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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7
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Gichumbi JM, Friedrich HB, Omondi B. Crystal structure of 3,6-di-2-pyridinyl-4-pyridazine carbonitrile, C 15H 9N 5. Z KRIST-NEW CRYST ST 2016. [DOI: 10.1515/ncrs-2015-0253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
C15H9N5, monoclinic, P21/c (no. 14), a = 8.9817(4) Å, b = 11.5791(19) Å, c = 12.065(2) Å, β = 102.289(4)°, V = 1226.03(3) Å3, Z = 4, R
gt
(F) = 0.0533, wR
ref
(F
2
) = 0.1512, T = 173(2) K.
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Affiliation(s)
- Joel M. Gichumbi
- School of Chemistry and Physics, University of KwaZulu-Natal , Private Bag X54001, Durban 4001, South Africa
| | - Holger B. Friedrich
- School of Chemistry and Physics, University of KwaZulu-Natal , Private Bag X54001, Durban 4001, South Africa
| | - Bernard Omondi
- School of Chemistry and Physics, University of KwaZulu-Natal , Private Bag X54001, Durban 4001, South Africa
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Wang S, Geng Z, Guo R, Li J, Zou D, Wu Y, Wu Y. Efficient synthesis of 5-substituted-3-pyridazine carbonitrile via regioselective Reissert-type reaction. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.05.037] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Toyota S, Karashima S, Iwanaga T. Synthesis and Properties of Extended π-Conjugated Compounds with 9,10-Bis(phenylethynyl)anthracene Units. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2015. [DOI: 10.1246/bcsj.20140279] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Shinji Toyota
- Department of Chemistry, Faculty of Science, Okayama University of Science
| | - Sayaka Karashima
- Department of Chemistry, Faculty of Science, Okayama University of Science
| | - Tetsuo Iwanaga
- Department of Chemistry, Faculty of Science, Okayama University of Science
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Clements JE, Price JR, Neville SM, Kepert CJ. Perturbation of Spin Crossover Behavior by Covalent Post-Synthetic Modification of a Porous Metal-Organic Framework. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201402951] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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11
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Clements JE, Price JR, Neville SM, Kepert CJ. Perturbation of Spin Crossover Behavior by Covalent Post-Synthetic Modification of a Porous Metal-Organic Framework. Angew Chem Int Ed Engl 2014; 53:10164-8. [DOI: 10.1002/anie.201402951] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2014] [Revised: 06/26/2014] [Indexed: 11/10/2022]
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Gil B, Cooke GA, Nolan D, Ó Máille GM, Varughese S, Wang L, Draper SM. A dinuclear extension to constrained heteroleptic Cu(i) systems. Dalton Trans 2011; 40:8320-7. [DOI: 10.1039/c1dt10275c] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Belén Gil
- School of Chemistry, Trinity College Dublin, Dublin, 2, Ireland
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Achelle S, Plé N, Turck A. Incorporation of pyridazine rings in the structure of functionalized π-conjugated materials. RSC Adv 2011. [DOI: 10.1039/c1ra00207d] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Happ B, Pavlov GM, Altuntas E, Friebe C, Hager MD, Winter A, Görls H, Günther W, Schubert US. Self-Assembly of 3,6-Bis(4-triazolyl)pyridazine Ligands with Copper(I) and Silver(I) Ions: Time-Dependant 2D-NOESY and Ultracentrifuge Measurements. Chem Asian J 2010; 6:873-80. [DOI: 10.1002/asia.201000737] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2010] [Indexed: 11/06/2022]
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Wu DY, Huang W, Wu GH. Synthesis, crystal structure, and photoluminescence of a new Zn(II) molecular box compound derived from a two-armed bis-terdendate ligand. J COORD CHEM 2010. [DOI: 10.1080/00958972.2010.502226] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Da-Yu Wu
- a Anhui Key Laboratory of Functional Coordination Compounds , School of Chemistry and Chemical Engineering, Anqing Normal College , Anqing 246011 , P.R. , China
| | - Wei Huang
- a Anhui Key Laboratory of Functional Coordination Compounds , School of Chemistry and Chemical Engineering, Anqing Normal College , Anqing 246011 , P.R. , China
| | - Gen-Hua Wu
- a Anhui Key Laboratory of Functional Coordination Compounds , School of Chemistry and Chemical Engineering, Anqing Normal College , Anqing 246011 , P.R. , China
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Spectral, structural and DFT studies of platinum group metal 3,6-bis(2-pyridyl)-4-phenylpyridazine complexes and their ligand bonding modes. J Organomet Chem 2010. [DOI: 10.1016/j.jorganchem.2009.12.004] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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17
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Hilt G, Janikowski J. Regiocontrolled Cobalt-Catalyzed Diels−Alder Reactions of Silicon-Functionalized, Terminal, and Internal Alkynes. Org Lett 2009; 11:773-6. [DOI: 10.1021/ol802837m] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Gerhard Hilt
- Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein-Strasse, 35043 Marburg, Germany
| | - Judith Janikowski
- Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein-Strasse, 35043 Marburg, Germany
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18
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Manlove A, Groziak MP. Chapter 6.2: Six-Membered Ring Systems: Diazines and Benzo Derivatives. PROGRESS IN HETEROCYCLIC CHEMISTRY 2009. [DOI: 10.1016/s0959-6380(09)70040-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
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19
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Varughese S, Cooke G, Draper SM. N-Substituted pyridazines as building blocks in novel supramolecular architectures. CrystEngComm 2009. [DOI: 10.1039/b902765c] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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20
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Constable EC, Housecroft CE, Neuburger M, Reymann S, Schaffner S. 4-Substituted 3,6-Bis(2-pyridyl)pyridazines: Silver(I) Complexes of 4-Cyano- and 4-(4-Bromophenyl)-3,6-bis(2-pyridyl)pyridazine and Pseudopolymorphs of 1,3,5-Tris{3,6-bis(2-pyridyl)pyridazin-4-yl}benzene. Aust J Chem 2008. [DOI: 10.1071/ch08369] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Metal:ligand complexes are crystallized from reaction mixtures of equimolar amounts of 4-cyano-3,6-bis(2-pyridyl)pyridazine 2 or 4-(4-bromophenyl)-3,6-bis(2-pyridyl)pyridazine 3 and silver(i) triflate. In [Ag2(2)2]2+, the two ligands adopt a head-to-tail arrangement, while a head-to-head motif is confirmed for the solid state structure of [Ag2(3)2]2+. In solution, one ligand environment is observed in each case. Silver(i) reacts with 1,3,5-tris{3,6-bis(2-pyridyl)pyridazin-4-yl}benzene 4 to give highly insoluble powders. The single crystal structures of the pseudopolymorphs (4)·Et2O and 2(4)·2MeCN·H2O are reported; in each structure, the ligand adopts the same conformation, derived from a Cs rather than C3v model structure.
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