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Nath BD, Islam MM, Karim MR, Rahman S, Shaikh MAA, Georghiou PE, Menelaou M. Recent Progress in Metal‐Incorporated Acyclic Schiff‐Base Derivatives: Biological Aspects. ChemistrySelect 2022. [DOI: 10.1002/slct.202104290] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Bikash Dev Nath
- Chemical Research Division Bangladesh Council of Scientific and Industrial Research (BCSIR) Dhanmondi Dhaka 1205 Bangladesh
| | - Md. Monarul Islam
- Chemical Research Division Bangladesh Council of Scientific and Industrial Research (BCSIR) Dhanmondi Dhaka 1205 Bangladesh
| | - Md. Rezaul Karim
- Chemical Research Division Bangladesh Council of Scientific and Industrial Research (BCSIR) Dhanmondi Dhaka 1205 Bangladesh
| | - Shofiur Rahman
- Department of Chemistry Memorial University of Newfoundland St. John's Newfoundland and Labrador A1B 3X7 Canada
| | - Md. Aftab Ali Shaikh
- Bangladesh Council of Scientific and Industrial Research (BCSIR) Dhanmondi Dhaka 1205 Bangladesh
- Department of Chemistry University of Dhaka Dhaka 1000 Bangladesh
| | - Paris E. Georghiou
- Department of Chemistry Memorial University of Newfoundland St. John's Newfoundland and Labrador A1B 3X7 Canada
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Effect of oxy-vanadium (IV) and oxy-zirconium (IV) ions in O,N-bidentate arylhydrazone complexes on their catalytic and biological potentials that supported via computerized usages. J Taiwan Inst Chem Eng 2022. [DOI: 10.1016/j.jtice.2021.104168] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Gayathri S, Viswanathamurthi P, Grzegorz Malecki J. Efficient multicomponent synthesis of propargylamines catalyzed by Cu(I) complexes encompassing hydrazone ligands under solvent-free condition. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2022.120853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Santos DC, Maia PJS, de Abreu Lopes MA, Forero JSB, de Souza ALF. A Simple Isoniazid-Based N-Acylhydrazone Derivative as Potential Fluorogenic Probe for Zn 2+ Ions. J Fluoresc 2020; 31:175-184. [PMID: 33188635 DOI: 10.1007/s10895-020-02651-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Accepted: 11/09/2020] [Indexed: 12/31/2022]
Abstract
This study evaluated three isoniazid-based N-acylhydrazone derivatives (HL1, HL2, and HL3) varying their substituting groups (-H, -N(CH3)2, and -NO2) as potential chemosensors for Zn2+ ions. To this end, the absorption and emission properties of these derivatives were investigated in the presence of Zn2+ ions. Results point to the derivative HL2 as the best chemosensor for Zn2+ ions because of its comparatively higher sensitivity. The color of this derivative changed from colorless to strong yellow with zinc addition, as indicated by the shift in UV-vis spectrum. Moreover, HL2 was the only derivative to emit fluorescence in the presence of Zn2+ ions, attributable to PET inhibition and bond isomerization promoted by coordination with this metal. LOD, LOQ, and binding constant values for HL2 + Zn2+ were 0.43 μmol.l-1, 0.93 μmol.l-1, and 5.04 × 1012 l.mol-1, respectively. The fluorescence of HL2 with other metal ions (Fe3+, Mg2+, Na+, Cd2+, Cu2+, Co2+, Ni2+, Ca2+, and K+) was also investigated. Zn2+ yielded the best result without Cd2+ interferences. Job's Plot showed that the stoichiometric ratio of the complex formed by HL2 and Zn2+ ions is 2:1 (ligand:metal). The strip test with adsorbed HL2 indicated fluorescence in the presence of zinc ions under 365 nm UV irradiation.
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Affiliation(s)
- Daniela Corrêa Santos
- Universidade Federal do Rio de Janeiro, Campus Macaé Professor Aloísio Teixeira, CEP, Macaé, RJ, 27930-560, Brazil.,Instituto de Macromoléculas, Universidade Federal do Rio de Janeiro, Cidade Universitária, CEP, Rio de Janeiro, RJ, 21941-598, Brazil
| | - Paulo José Sousa Maia
- Universidade Federal do Rio de Janeiro, Campus Macaé Professor Aloísio Teixeira, CEP, Macaé, RJ, 27930-560, Brazil
| | - Marcos Antonio de Abreu Lopes
- Universidade Federal do Rio de Janeiro, Campus Macaé Professor Aloísio Teixeira, CEP, Macaé, RJ, 27930-560, Brazil.,Pós-Graduação em Química (PGQu), Instituto de Química, Universidade Federal do Rio de Janeiro, Cidade Universitária, Rio de Janeiro, RJ, CEP21941-909, Brazil
| | - Josué Sebastián Bello Forero
- Pós-Graduação em Química (PGQu), Instituto de Química, Universidade Federal do Rio de Janeiro, Cidade Universitária, Rio de Janeiro, RJ, CEP21941-909, Brazil
| | - Andréa Luzia Ferreira de Souza
- Universidade Federal do Rio de Janeiro, Campus Macaé Professor Aloísio Teixeira, CEP, Macaé, RJ, 27930-560, Brazil. .,Pós-Graduação em Química (PGQu), Instituto de Química, Universidade Federal do Rio de Janeiro, Cidade Universitária, Rio de Janeiro, RJ, CEP21941-909, Brazil.
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de Oliveira Carneiro Brum J, França TCC, LaPlante SR, Villar JDF. Synthesis and Biological Activity of Hydrazones and Derivatives: A Review. Mini Rev Med Chem 2020; 20:342-368. [PMID: 31612828 DOI: 10.2174/1389557519666191014142448] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 06/16/2019] [Accepted: 06/24/2019] [Indexed: 12/16/2022]
Abstract
Hydrazones and their derivatives are very important compounds in medicinal chemistry due to their reported biological activity for the treatment of several diseases, like Alzheimer's, cancer, inflammation, and leishmaniasis. However, most of the investigations on hydrazones available in literature today are directed to the synthesis of these molecules with little discussion available on their biological activities. With the purpose of bringing lights into this issue, we performed a revision of the literature and wrote this review based on some of the most current research reports of hydrazones and derivatives, making it clear that the synthesis of these molecules can lead to new drug prototypes. Our goal is to encourage more studies focused on the synthesis and evaluation of new hydrazones, as a contribution to the development of potential new drugs for the treatment of various diseases.
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Affiliation(s)
- Juliana de Oliveira Carneiro Brum
- Medicinal Chemistry Group, Department of Chemistry, Military Institute of Engineering, Praca General Tiburcio 80, 22290-270, Rio de Janeiro, RJ, Brazil
| | - Tanos Celmar Costa França
- Laboratory of Molecular Modeling Applied to the Chemical and Biological Defense (LMCBD), Military Institute of Engineering, Praça General Tibúrcio 80, 22290-270, Rio de Janeiro, RJ, Brazil.,Department of Chemistry, Faculty of Science, University of Hradec Kralove, Hradec Kralove, Czech Republic.,Universite du Quebec, INRS-Centre Armand-Frapier Sante Biotechnologie, 531, Boulevard de Praires, Laval H7V 1B7, Canada
| | - Steven R LaPlante
- Universite du Quebec, INRS-Centre Armand-Frapier Sante Biotechnologie, 531, Boulevard de Praires, Laval H7V 1B7, Canada
| | - José Daniel Figueroa Villar
- Medicinal Chemistry Group, Department of Chemistry, Military Institute of Engineering, Praca General Tiburcio 80, 22290-270, Rio de Janeiro, RJ, Brazil
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Hydrazone complexes of ruthenium(II): Synthesis, crystal structures and catalytic applications in N-alkylation reactions. J Organomet Chem 2020. [DOI: 10.1016/j.jorganchem.2020.121411] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Synthesis, characterization and antimicrobial studies of novel ONO donor hydrazone Schiff base complexes with some divalent metal (II) ions. ARAB J CHEM 2020. [DOI: 10.1016/j.arabjc.2020.06.012] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
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Boulguemh IE, Beghidja A, Khattabi L, Long J, Beghidja C. Monomeric and dimeric copper (II) complexes based on bidentate Nʹ-(propan-2-ylidene) thiophene carbohydrazide Schiff base ligand: Synthesis, structure, magnetic properties, antioxidant and anti-Alzheimer activities. Inorganica Chim Acta 2020. [DOI: 10.1016/j.ica.2020.119519] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Turan N, Buldurun K, Çolak N, Özdemir İ. Preparation and spectroscopic studies of Fe(II), Ru(II), Pd(II) and Zn(II) complexes of Schiff base containing terephthalaldehyde and their transfer hydrogenation and Suzuki-Miyaura coupling reaction. OPEN CHEM 2019. [DOI: 10.1515/chem-2019-0074] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
AbstractThis study describes synthesis, spectroscopic characterization and catalytic activities of Fe(II), Ru(II), Pd(II) and Zn(II) complexes with a novel Schiff base ligand (L) derived from methyl 2-amino-5,5,7,7-tetramethyl-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate and terephthalaldehyde. We used spectroscopic techniques including IR, UV-Vis, 1H-NMR, 13C-NMR, elemental analysis and also mass analysis and magnetic susceptibility measurements to identify the products. The Pd(II) complex was used as a potential catalyst for Suzuki-Miyaura coupling reaction of some aryl halides under optimized conditions. The effect of various bases such as NaOH, KOH, and KOBut was investigated in transfer hydrogenation (TH) of ketones by isopropyl alcohol as the hydrogen source. Ru(II) and Pd(II) complexes showed catalytic activity while Zn(II) and Fe(II) metal complexes failed to do that.
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Affiliation(s)
- Nevin Turan
- Department of Chemistry, Faculty of Arts and Sciences, Muş Alparslan University, 49250Muş, Turkey
| | - Kenan Buldurun
- Department of Chemistry, Faculty of Arts and Sciences, Muş Alparslan University, 49250Muş, Turkey
- Catalysis Research and Application Center, İnönü University, 44280Malatya, Turkey
| | - Naki Çolak
- Department of Chemistry, Faculty of Arts and Sciences, Hitit University, 19100Çorum, Turkey
| | - İsmail Özdemir
- Catalysis Research and Application Center, İnönü University, 44280Malatya, Turkey
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Buldurun K, Turan N, Savcı A, Çolak N. Synthesis, structural characterization and biological activities of metal(II) complexes with Schiff bases derived from 5-bromosalicylaldehyde: Ru(II) complexes transfer hydrogenation. JOURNAL OF SAUDI CHEMICAL SOCIETY 2019. [DOI: 10.1016/j.jscs.2018.06.002] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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Malik MA, Dar OA, Gull P, Wani MY, Hashmi AA. Heterocyclic Schiff base transition metal complexes in antimicrobial and anticancer chemotherapy. MEDCHEMCOMM 2018; 9:409-436. [PMID: 30108933 PMCID: PMC6071736 DOI: 10.1039/c7md00526a] [Citation(s) in RCA: 195] [Impact Index Per Article: 32.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Accepted: 12/05/2017] [Indexed: 12/18/2022]
Abstract
In recent years, the number of people suffering from cancer and multidrug-resistant infections has sharply increased, leaving humanity without any choice but to search for new treatment options and strategies. Although cancer is considered the leading cause of death worldwide, it also paves the way many microbial infections and thus increases this burden manifold. Development of small molecules as anticancer and anti-microbial agents has great potential and a plethora of drugs are already available to combat these diseases. However, the wide occurrence of multidrug resistance in both cancer and microbial infections necessitates the development of new and potential molecules with desired properties that could circumvent the multidrug resistance problem. A successful strategy in anticancer chemotherapy has been the use of metallo-drugs and this strategy has the potential to be used for treating multidrug-resistant infections more efficiently. As a class of molecules, Schiff bases have been the topic of considerable interest, owing to their versatile metal chelating properties, inherent biological activities and flexibility to modify the structure to fine-tune it for a particular biological application. Schiff base-based metallo-drugs are being researched to develop new anticancer and anti-microbial chemotherapies and because both anticancer and anti-microbial targets are different, heterocyclic Schiff bases can be structurally modified to achieve the desired molecule, targeting a particular disease. In this review, we collect the most recent and relevant literature concerning the synthesis of heterocyclic Schiff base metal complexes as anticancer and anti-microbial agents and discuss the potential and future of this class of metallo-drugs as either anticancer or anti-microbial agents.
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Affiliation(s)
- Manzoor Ahmad Malik
- Department of Chemistry , Jamia Millia Islamia (Central University) , New Delhi-110025 , India . ; Tel: +91 9868523358
| | - Ovas Ahmad Dar
- Department of Chemistry , Jamia Millia Islamia (Central University) , New Delhi-110025 , India . ; Tel: +91 9868523358
| | - Parveez Gull
- Department of Chemistry , Jamia Millia Islamia (Central University) , New Delhi-110025 , India . ; Tel: +91 9868523358
| | - Mohmmad Younus Wani
- Texas Therapeutics Institute , Brown Foundation Institute of Molecular Medicine , The University of Texas Health Science Center at Houston , 1881 East Road , Houston 77054 , TX , USA
- Chemistry Department , Faculty of Science , University of Jeddah , Jeddah , Kingdom of Saudi Arabia
| | - Athar Adil Hashmi
- Department of Chemistry , Jamia Millia Islamia (Central University) , New Delhi-110025 , India . ; Tel: +91 9868523358
- Chemistry Department , Faculty of Science , King Abdulaziz University , P.O. Box 80203 , Jeddah , 21589 , Saudi Arabia
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Sheng GH, Wang CF, Feng S, Gao X, Zhu HL. Characterization and Crystal Structure of a Novel Mononuclear Cobalt(II) Complex with Hydrazone Derived from Protocatechuic Acid. J STRUCT CHEM+ 2018. [DOI: 10.1134/s0022476618010213] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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13
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Haque MA, Chaudhary RG, Paliwal L. Synthesis, structural, morphological, and thermal decomposition kinetics of Iron (II) coordination polymer of sebacoyl bis (isonicotinoylhydrazone). Inorganica Chim Acta 2017. [DOI: 10.1016/j.ica.2017.03.042] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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14
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Synthesis and characterization of a series of isoniazid hydrazones. Spectroscopic and theoretical study. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2016.12.018] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Kağıt R, Dayan O, Özdemir N. Palladium(II) and Ruthenium(II) complexes bearing arylsulfonate based ligands: Synthesis, structural characterization and catalytic properties. Polyhedron 2016. [DOI: 10.1016/j.poly.2016.06.044] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Tiago FS, Santiago PH, Amaral MM, Martins JB, Gatto CC. New Cu(II) complex with acetylpyridine benzoyl hydrazone: experimental and theoretical analysis. J COORD CHEM 2015. [DOI: 10.1080/00958972.2015.1105367] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Fernanda S. Tiago
- Laboratory of Computational Chemistry, University of Brasília (IQ-UnB), Brasília, Brazil
| | - Pedro H.O. Santiago
- Laboratory of Inorganic Synthesis and Crystallography, University of Brasília (IQ-UnB), Brasília, Brazil
| | - Marília M.P. Amaral
- Laboratory of Inorganic Synthesis and Crystallography, University of Brasília (IQ-UnB), Brasília, Brazil
| | - João B.L. Martins
- Laboratory of Computational Chemistry, University of Brasília (IQ-UnB), Brasília, Brazil
| | - Claudia C. Gatto
- Laboratory of Inorganic Synthesis and Crystallography, University of Brasília (IQ-UnB), Brasília, Brazil
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Bhaskar R, Salunkhe N, Yaul A, Aswar A. Bivalent transition metal complexes of ONO donor hydrazone ligand: Synthesis, structural characterization and antimicrobial activity. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 151:621-627. [PMID: 26163785 DOI: 10.1016/j.saa.2015.06.121] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2014] [Revised: 06/28/2015] [Accepted: 06/29/2015] [Indexed: 06/04/2023]
Abstract
Mononuclear transition metal complexes of Mn(II), Co(II), Ni(II), Cu(II), Zn(II) and Cd(II) with a new hydrazone ligand derived from pyrazine-2-carbohydrazide and 2-hydroxyacetophenone have been synthesized. The isolated complexes were characterized by elemental analysis, spectral and analytical methods including elemental analyses, IR, diffuse reflectance, (1)H-NMR, mass spectra, molar conductance, magnetic moment, ESR, XRD, TG and SEM analysis. From the elemental analyses data, the stoichiometry of the complexes was found to be 1:1 (metal:ligand) having the general formulae [M(HL)(Cl)(H2O)2], [M=Mn(II), Co(II), Ni(II) and Cu(II)] and [M(L)(H2O)], [M=Zn(II) and Cd(II)]. The molar conductance values indicate the nonelectrolytic nature of metal complexes. The IR spectral data suggest that the ligand behaves as tridentate moiety with ONO donor atoms sequence towards central metal ion. The Mn(II), Co(II), Ni(II) and Cu(II) complexes have been assigned a monomeric octahedral geometry whereas tetrahedral to Zn(II) and Cd(II) complexes. The antibacterial and antifungal activities of the ligand and its metal complexes were studied against bacterial species Escherichia coli, Pseudomonas aeruginosa, Staphylococcus aureus, Bacillus subtilis, Enterococcus faecalis and Streptococcus pyogenes and fungi Candida albicans, Aspergillus niger and Aspergillus clavatus. The activity data show that the metal complexes have a promising biological activity comparable with the parent ligand against all bacterial and fungal species.
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Affiliation(s)
- Ravindra Bhaskar
- Department of Chemistry, Sant Gadge Baba Amravati University, Amravati 444602, MS, India
| | - Nilesh Salunkhe
- Department of Chemistry, Sant Gadge Baba Amravati University, Amravati 444602, MS, India
| | - Amit Yaul
- Department of Chemistry, Sant Gadge Baba Amravati University, Amravati 444602, MS, India
| | - Anand Aswar
- Department of Chemistry, Sant Gadge Baba Amravati University, Amravati 444602, MS, India.
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Affiliation(s)
- Dong Wang
- ISM, Université de Bordeaux, 351 Cours de la Libération, 33405 Talence Cedex, France
| | - Didier Astruc
- ISM, Université de Bordeaux, 351 Cours de la Libération, 33405 Talence Cedex, France
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Ramachandran R, Prakash G, Selvamurugan S, Viswanathamurthi P, Malecki JG, Ramkumar V. Efficient and versatile catalysis of N-alkylation of heterocyclic amines with alcohols and one-pot synthesis of 2-aryl substituted benzazoles with newly designed ruthenium(ii) complexes of PNS thiosemicarbazones. Dalton Trans 2014; 43:7889-902. [DOI: 10.1039/c4dt00006d] [Citation(s) in RCA: 84] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Efficient catalytic N-alkylation of amines using Ru(ii) catalysts with good yields and high selectivity.
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Manikandan R, Prakash G, Kathirvel R, Viswanathamurthi P. Ruthenium(II) carbonyl complexes bearing quinoline-based NNO tridentate ligands as catalyst for one-pot conversion of aldehydes to amides and o-allylation of phenols. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2013; 116:501-508. [PMID: 23978737 DOI: 10.1016/j.saa.2013.07.114] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2013] [Revised: 07/24/2013] [Accepted: 07/31/2013] [Indexed: 06/02/2023]
Abstract
Six new octahedral ruthenium(II) carbonyl complexes having the general molecular formula [RuCl(CO)(B)L(1-2)] (B = PPh3, AsPh3 or py; L(1-2) = quinoline based NNO ligand) were synthesized. The quinoline based ligands behave as monoanionic tridentate donor and coordinated to ruthenium via ketoenolate oxygen, azomethine nitrogen and quinoline nitrogen. The composition of the complexes has been established by elemental analysis and spectral methods (FT-IR, electronic, (1)H NMR, (13)C NMR, (31)P NMR and ESI-Mass). The complexes were used as efficient catalysts for one-pot conversion of various aldehydes to their corresponding primary amides in presence of NH2OH · HCl and NaHCO3. The effect of catalyst loading and reaction temperature on catalytic activity of the ruthenium(II) carbonyl complexes were also investigated. The synthesized complexes also possess good catalytic activity for the o-allylation of phenols in the presence of K2CO3 under mild conditions. The complexes afforded branched allyl aryl ethers according to a regioselective reaction.
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Affiliation(s)
- R Manikandan
- Department of Chemistry, Periyar University, Salem 636 011, India
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Ramachandran R, Viswanathamurthi P. Ruthenium(II) carbonyl complexes containing pyridine carboxamide ligands and PPh₃/AsPh₃/Py coligands: synthesis, spectral characterization, catalytic and antioxidant studies. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2013; 103:53-61. [PMID: 23257330 DOI: 10.1016/j.saa.2012.10.072] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2012] [Revised: 10/25/2012] [Accepted: 10/30/2012] [Indexed: 06/01/2023]
Abstract
New ruthenium(II) carbonyl complexes bearing pyridine carboxamide and triphenylphosphine/triphenylarsine/pyridine have been prepared by direct reaction of ruthenium(II) precursors with some pyridine carboxamide ligands, N,N-bis(2-pyridinecarboxamide)-1,2-ethane (H(2)L(1)), N,N-bis(2-pyridinecarboxamide)-1,2-benzene (H(2)L(2)) and N,N-bis(2-pyridinecarboxamide)-trans-1,2-cyclohexane (H(2)L(3)). The organic ligands offering two N(amide) and two N(pyridine) donor sites to the metal centre. They have been characterized by elemental analyses, FT-IR, UV-Visible, NMR ((1)H, (13)C and (31)P) and ESI-MS techniques. Based on the above data, an octahedral structure has been assigned for all the complexes. The catalytic efficiency of the complexes in transfer hydrogenation of ketones in the presence of iPrOH/KOH and N-alkylation of amine in the presence of tBuOK was examined. Furthermore, the antioxidant activity of the ligands and its ruthenium(II) complexes were determined by DPPH radical, nitric oxide radical, hydroxyl radical and hydrogen peroxide scavenging methods, which indicates that the ruthenium(II) complexes exhibit more effective antioxidant activity than the ligands alone.
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Sahin M, Gubbuk IH, Kocak N. Synthesis and Characterization of Sporopollenin-Supported Schiff Bases and Ruthenium(III) Sorption Studies. J Inorg Organomet Polym Mater 2012. [DOI: 10.1007/s10904-012-9739-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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