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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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Cai BG, Li Q, Xuan J. Copper-catalyzed 2,3-dihydro-1,2,4-triazoles synthesis through [3+2]-cycloaddition of nitrile ylides with azodicarboxylates. GREEN SYNTHESIS AND CATALYSIS 2023. [DOI: 10.1016/j.gresc.2023.01.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
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Khandebharad A, Sarda S, Kulkarni P, Agrawal B. Visible Light Assisted Synthesis of 5-Aryl-1,2,4-thiazolidine-3-thiones Under Catalyst-free Condition. CURRENT GREEN CHEMISTRY 2020. [DOI: 10.2174/2213346107999200729131533] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Light energy can be considered as an ideal eco-friendly source of energy for green chemistry.
This perspective was used to synthesize 5-aryl-1,2,4-thiazolidine-3-thiones derivative as a quick,
efficient and highly improved protocol. The present method developed an energy competent and integrated
technique by one-pot condensations of aromatic aldehyde and thiosemicarbazide under the
catalyst-free condition in aqueous-alcoholic media. The impact of light on reaction along with mechanical
stirring provided a prominent yield of the product. The mild reaction conditions, short reaction
time and easy workup procedure, avoidance of heavy metal catalyst and harsh reaction conditions
make this protocol greener.
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Affiliation(s)
| | - Swapnil Sarda
- Department of Chemistry, J.E.S. College, Jalna (MS), India
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Novel, green and sustainable route for synthesis of 5-aryl-4-phenyl-1,2,4-triazolidine-3-thiones. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.152015] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Mhaldar PM, Pore DM. Envirocat EPZ-10: An Efficient Catalyst for the Synthesis of 1,2,4- Triazolidine-3-thiones. LETT ORG CHEM 2020. [DOI: 10.2174/1570178616666191019144317] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A simple and environmentally benign room temperature synthesis of 1,2,4-triazolidine-3-
thiones is described using Envirocat EPZ-10R as a solid acid catalyst in the aqueous medium. The use
of Envirocat EPZ-10R as a green catalyst, reusability of the catalyst, water as a universal solvent and
good yields of the product are the attractive features of the present method.
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Affiliation(s)
- Pradeep M. Mhaldar
- Department of Chemistry, Shivaji University, Kolhapur, Maharashtra 416004, India
| | - Dattaprasad M. Pore
- Department of Chemistry, Shivaji University, Kolhapur, Maharashtra 416004, India
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Hichri F, Omri A, Hossan ASM, Ben Jannet H. Alpha-glucosidase and amylase inhibitory effects of Eruca vesicaria subsp. longirostris essential oils: synthesis of new 1,2,4-triazole-thiol derivatives and 1,3,4-thiadiazole with potential inhibitory activity. PHARMACEUTICAL BIOLOGY 2019; 57:564-570. [PMID: 31454271 PMCID: PMC6720017 DOI: 10.1080/13880209.2019.1642363] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Revised: 05/21/2019] [Accepted: 06/29/2019] [Indexed: 05/31/2023]
Abstract
Context: The substantial increase in the number of diabetics has encouraged the search for new pharmacological strategies to face this problem. In this regard, triazole and its derivatives have attracted considerable attention for the past few decades due to their pharmacological significance. Objective: Evaluation of the inhibitory activity of α-glucosidase and α-amylase in essential oils extracted from plant Eruca vesicaria (L) Cav. subsp. longirostris (Brassicaceae) (EVL) and to verify whether the triazoles and thiadiazol bearing the lipophilic 4-methylthiobutyl group synthesized from the essential oil contribute to this activity. Materials and methods: The essential oils were extracted by hydrodistillation from leaf, stem, root, and fruit of EVL, and their chemical compositions were analyzed by gas chromatography and gas chromatography-mass spectrometry. We present here the synthesis of three new types of 1,2,4-triazole-thiol and 1,3,4-thiadiazol and the structures were confirmed by NMR, mass spectrometry. The α-glucosidase and α-amylase inhibitory activities were investigated in vitro. Results: The main compound in fruit, stem, and root was erucin (96.6, 85.3, and 83.7%, respectively). The three essential oils of the fruit, stem, and root have strong inhibitory activity on α-glucosidase and α-amylase; IC50 values of roots were 0.81 ± 0.02 μg/mL and 0.13 ± 0.01 μg/mL, respectively. Derivatives 1 b, 2 b, 3 b, and 2c showed remarkable inhibitory activity against α-glucosidase with potencies better than that of acarbose with IC50 values ranging between 0.49 and 1.43 μM. Conclusions: Current results indicate that ECL fruit essential oil can be used as a natural precursor for the synthesis of triazoles as potential hypoglycemic agents.
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Affiliation(s)
- Fayçal Hichri
- Chemistry Department, Faculty of Science, King Khaled University, Abha, Saudi Arabia
- Laboratoire de Chimie hétérocyclique, Produits Naturels et Réactivité, Equipe: Chimie Médicinale et Produits Naturels, Faculté des Sciences de Monastir, Université de Monastir, Monastir, Tunisia
| | - Amel Omri
- Faculté de Pharmacie, Laboratoire des maladies transmissibles et des substances biologiquement actives, Monastir, Tunisie
| | | | - Hichem Ben Jannet
- Laboratoire de Chimie hétérocyclique, Produits Naturels et Réactivité, Equipe: Chimie Médicinale et Produits Naturels, Faculté des Sciences de Monastir, Université de Monastir, Monastir, Tunisia
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Wang T, Cho HM, Lee ME. Synthesis and Characterization of a New Class of Triazoles Containing Bicyclic Silaheterocycles. ChemistrySelect 2017. [DOI: 10.1002/slct.201700273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Tengjiao Wang
- Department of Chemistry and Medical Chemistry, College of Science and Technology; Research and Education Center for Advanced Silicon Materials Yonsei University; Wonju, Gangwon-do 220-710 South Korea
| | - Hyeon Mo Cho
- University College; Yonsei University; Incheon 406-840 South Korea
| | - Myong Euy Lee
- Department of Chemistry and Medical Chemistry, College of Science and Technology; Research and Education Center for Advanced Silicon Materials Yonsei University; Wonju, Gangwon-do 220-710 South Korea
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Belaroussi R, El Hakmaoui A, Akssira M, Guillaumet G, Routier S. Regioselective Synthesis of 2,4-Substituted Pyrido[1′,2′:1,5]pyrazolo[3,4-d
]pyrimidines through Sequential Pd-Catalyzed Arylation and SN
Ar Reactions. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600356] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Rabia Belaroussi
- Univ Orleans; CNRS; Institut de Chimie Organique et Analytique; UMR 7311; BP 6759 45067 Orléans Cedex 2 France
- Laboratoire de Chimie Physique et Chimie Bioorganique; Université Hassan II-Mohammedia-Casablanca; B. P. 146 28800 Mohammedia Morocco
| | - Ahmed El Hakmaoui
- Laboratoire de Chimie Physique et Chimie Bioorganique; Université Hassan II-Mohammedia-Casablanca; B. P. 146 28800 Mohammedia Morocco
| | - Mohamed Akssira
- Laboratoire de Chimie Physique et Chimie Bioorganique; Université Hassan II-Mohammedia-Casablanca; B. P. 146 28800 Mohammedia Morocco
| | - Gérald Guillaumet
- Univ Orleans; CNRS; Institut de Chimie Organique et Analytique; UMR 7311; BP 6759 45067 Orléans Cedex 2 France
| | - Sylvain Routier
- Univ Orleans; CNRS; Institut de Chimie Organique et Analytique; UMR 7311; BP 6759 45067 Orléans Cedex 2 France
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An efficient synthesis of anti-microbial 1,2,4-triazole-3-thiones promoted by acidic ionic liquid. RESEARCH ON CHEMICAL INTERMEDIATES 2015. [DOI: 10.1007/s11164-015-2267-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Ramagiri RK, Vedula RR, Thupurani MK. A Facile One-Step Multi-Component Approach toward the Synthesis of 3-(2-Amino-4-Thiazolyl)Coumarins by using Trimethylsilyl Isothiocyanate and their Antioxidant and Anti-Inflammatory Activity. PHOSPHORUS SULFUR 2015. [DOI: 10.1080/10426507.2014.990016] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Raj Kumar Ramagiri
- Department of Chemistry, National Institute of Technology, Warangal, 506004, Andhra Pradesh, India
| | - Rajeswar Rao Vedula
- Department of Chemistry, National Institute of Technology, Warangal, 506004, Andhra Pradesh, India
| | - Murali Krishna Thupurani
- Department of Biotechnology, Chaithanya Postgraduate College (Autonomous), Kishanpura, Hanamkonda, Andhra Pradesh, India
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Mane M, Pore D. A novel one pot multi-component strategy for facile synthesis of 5-aryl-[1,2,4]triazolidine-3-thiones. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.10.052] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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12
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Mule SNR, Battula SK, Velupula G, Guda DR, Bollikolla HB. 10-Camphorsulfonic acid ((±)-CSA) catalyzed facile one-pot synthesis of a new class of 2,5-disubstituted 1,3,4-oxadiazoles. RSC Adv 2014. [DOI: 10.1039/c4ra11218k] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
A convenient, and efficient one-pot synthesis of 2,5-disubstituted-1,3,4-oxadizoles is described.
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Affiliation(s)
- Siva Nagi Reddy Mule
- Department of Chemistry
- Acharya Nagarjuna University
- Guntur, India-522510
- Hetero Research Foundation
- APIE
| | - Sailaja Kumari Battula
- Department of Chemistry
- Acharya Nagarjuna University
- Guntur, India-522510
- Hetero Research Foundation
- APIE
| | | | - Dinneswara Reddy Guda
- Department of Chemistry & Medical Chemistry
- Yonsei University
- Wonju, South Korea
- Department of Chemistry
- Sri Venkateswara University
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A simple, three-component synthesis of 2-aminothiazoles using trimethylsilyl isothiocyanate. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.06.102] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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14
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Katkevica S, Salun P, Jirgensons A. Synthesis of 5-substituted 3-mercapto-1,2,4-triazoles via Suzuki–Miyaura reaction. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.06.067] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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15
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Guda DR, Cho HM, Lee ME. Mild and convenient one-pot synthesis of 2-amino-1,3,4-oxadiazoles promoted by trimethylsilyl isothiocyanate (TMSNCS). RSC Adv 2013. [DOI: 10.1039/c3ra41044g] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
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Guda DR, Cho HM, Lee ME. Mild and convenient one-pot synthesis of 2-amino-1,3,4-thiadiazoles using trimethylsilyl isothiocyanate (TMSNCS). RSC Adv 2013. [DOI: 10.1039/c3ra00159h] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Shao D, Yang Y, Xue F, Luo X, Wubulikasimu R, Li Y, Gao R, Ye W. Design, Synthesis and Inhibitory Properties against Coxsackie B3/B6 of Some Novel Triazole Derivatives. ACTA ACUST UNITED AC 2013. [DOI: 10.4236/ijoc.2013.31a005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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