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Acebedo-Martínez FJ, Alarcón-Payer C, Verdugo-Escamilla C, Martín J, Frontera A, Domínguez-Martín A, Gómez-Morales J, Choquesillo-Lazarte D. Rational Coformer Selection in the Development of 6-Propyl-2-thiouracil Pharmaceutical Cocrystals. Pharmaceuticals (Basel) 2023; 16:ph16030370. [PMID: 36986470 PMCID: PMC10055029 DOI: 10.3390/ph16030370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 02/20/2023] [Accepted: 02/24/2023] [Indexed: 03/05/2023] Open
Abstract
Pharmaceutical multicomponent solids have proved to efficiently modulate the physicochemical properties of active pharmaceutical ingredients. In this context, polyphenols are interesting coformers for designing pharmaceutical cocrystals due to their wide safety profile and interesting antioxidant properties. The novel 6-propyl-2-thiouracil multicomponent solids have been obtained by mechanochemical synthesis and fully characterized by powder and single-crystal X-ray diffraction methods. The analysis of supramolecular synthons has been further performed with computational methods, with both results revealing a robust supramolecular organization influenced by the different positions of the hydroxyl groups within the polyphenolic coformers. All novel 6-propyl-2-thiouracil cocrystals show an enhanced solubility profile, but unfortunately, their thermodynamic stability in aqueous media is limited to 24 h.
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Affiliation(s)
| | | | - Cristóbal Verdugo-Escamilla
- Laboratorio de Estudios Cristalográficos, IACT, CSIC-Universidad de Granada, Avda. de las Palmeras 4, 18100 Armilla, Spain
| | - Jesús Martín
- Fundación MEDINA, Centro de Excelencia en Investigación de Medicamentos Innovadores en Andalucía, Parque Tecnológico Ciencias de la Salud, Avda. del Conocimiento 34, 18016 Armilla, Spain
| | - Antonio Frontera
- Department of Chemistry, Universitat de les Illes Balears, Crta de Valldemossa km 7.5, 07122 Palma de Mallorca (Baleares), Spain
- Correspondence: (A.F.); (A.D.-M.); (D.C.-L.)
| | - Alicia Domínguez-Martín
- Department of Inorganic Chemistry, Faculty of Pharmacy, University of Granada, 18071 Granada, Spain
- Correspondence: (A.F.); (A.D.-M.); (D.C.-L.)
| | - Jaime Gómez-Morales
- Laboratorio de Estudios Cristalográficos, IACT, CSIC-Universidad de Granada, Avda. de las Palmeras 4, 18100 Armilla, Spain
| | - Duane Choquesillo-Lazarte
- Laboratorio de Estudios Cristalográficos, IACT, CSIC-Universidad de Granada, Avda. de las Palmeras 4, 18100 Armilla, Spain
- Correspondence: (A.F.); (A.D.-M.); (D.C.-L.)
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2
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Kumar B, Das T, Das S, Maniukiewicz W, Nesterov DS, Kirillov AM, Das S. Coupling 6-chloro-3-methyluracil with copper: structural features, theoretical analysis, and biofunctional properties. Dalton Trans 2021; 50:13533-13542. [PMID: 34505590 DOI: 10.1039/d1dt02018h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
As nucleobases in RNA and DNA, uracil and 5-methyluracil represent a recognized class of bioactive molecules and versatile ligands for coordination compounds with various biofunctional properties. In this study, 6-chloro-3-methyluracil (Hcmu) was used as an unexplored building block for the self-assembly generation of a new bioactive copper(II) complex, [Cu(cmu)2(H2O)2]·4H2O (1). This compound was isolated as a stable crystalline solid and fully characterized in solution and solid state by a variety of spectroscopic methods (UV-vis, EPR, fluorescence spectroscopy), cyclic voltammetry, X-ray diffraction, and DFT calculations. The structural, topological, H-bonding, and Hirshfeld surface features of 1 were also analyzed in detail. The compound 1 shows a distorted octahedral {CuN2O4} coordination environment with two trans cmu- ligands adopting a bidentate N,O-coordination mode. The monocopper(II) molecular units participate in strong H-bonding interactions with water molecules of crystallization, leading to structural 0D → 3D extension into a 3D H-bonded network with a tfz-d topology. Molecular docking and ADME analysis as well as antibacterial and antioxidant activity studies were performed to assess the bioactivity of 1. In particular, this compound exhibits a prominent antibacterial effect against Gram negative (E. coli, P. aeruginosa) and positive (S. aureus, B. cereus) bacteria. The obtained copper(II) complex also represents the first structurally characterized coordination compound derived from 6-chloro-3-methyluracil, thus introducing this bioactive building block into a family of uracil metal complexes with notable biofunctional properties.
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Affiliation(s)
- Brajesh Kumar
- Department of Chemistry, National Institute of Technology Patna, Ashok Rajpath, Patna 800005, India.
| | - Tushar Das
- Department of Chemistry, National Institute of Technology Patna, Ashok Rajpath, Patna 800005, India.
| | - Subhadeep Das
- Department of Life Science and Biotechnology, Jadavpur University, 188 Raja S.C. Mallick Rd, Kolkata 700032, India
| | - Waldemar Maniukiewicz
- Institute of General and Ecological Chemistry, Lodz University of Technology, Żeromskiego 116, Łódź, Poland
| | - Dmytro S Nesterov
- Centro de Química Estrutural and Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisbon, Portugal.
| | - Alexander M Kirillov
- Centro de Química Estrutural and Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisbon, Portugal. .,Research Institute of Chemistry, Peoples' Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya st., Moscow, 117198, Russian Federation
| | - Subrata Das
- Department of Chemistry, National Institute of Technology Patna, Ashok Rajpath, Patna 800005, India.
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3
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Peng L, Wang D, Zhang D, Zhang Z, Zhou Q, Li H, Yang Y. Synthesis and Characterization of Copper(I) Halide Complexes Prepared with Bipodal Diacylthioureas. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000312] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Lan‐Xin Peng
- School of Chemistry and Chemical Engineering Central South University Lushannan Road 932 410083 Changsha China
| | - Dan Wang
- School of Chemistry and Chemical Engineering Central South University Lushannan Road 932 410083 Changsha China
- College of Energy Soochow Institute for Energy and Materials InnovationS Soochow University Ganjiang Road 333 215006 Suzhou China
| | - De‐Xiang Zhang
- School of Chemistry and Chemical Engineering Central South University Lushannan Road 932 410083 Changsha China
| | - Zhi‐Jiao Zhang
- School of Chemistry and Chemical Engineering Central South University Lushannan Road 932 410083 Changsha China
| | - Qi Zhou
- School of Chemistry and Chemical Engineering Central South University Lushannan Road 932 410083 Changsha China
| | - Hai‐Pu Li
- School of Chemistry and Chemical Engineering Central South University Lushannan Road 932 410083 Changsha China
- Key laboratory of Hunan Province for Water Environment and Agriculture Product Safety Lushannan Road 932 410083 Changsha China
| | - Ying Yang
- School of Chemistry and Chemical Engineering Central South University Lushannan Road 932 410083 Changsha China
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4
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Fluorescence of copper(I) and mixed valence copper(I/II) complexes with dipicolinic acid and their catalytic activity on catechol oxidation. Inorganica Chim Acta 2020. [DOI: 10.1016/j.ica.2019.119209] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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5
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Banti CN, Tsiatouras V, Karanicolas K, Panagiotou N, Tasiopoulos AJ, Kourkoumelis N, Hadjikakou SK. Antiproliferative activity and apoptosis induction, of organo-antimony(III)–copper(I) conjugates, against human breast cancer cells. Mol Divers 2019; 24:1095-1106. [DOI: 10.1007/s11030-019-10014-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Accepted: 11/02/2019] [Indexed: 02/04/2023]
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Correa RS, Bomfim LM, Oliveira KM, Moreira DR, Soares MB, Ellena J, Bezerra DP, Batista AA. Ru(II) complexes containing uracil nucleobase analogs with cytotoxicity against tumor cells. J Inorg Biochem 2019; 198:110751. [DOI: 10.1016/j.jinorgbio.2019.110751] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 05/22/2019] [Accepted: 06/05/2019] [Indexed: 01/31/2023]
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Taylor WV, Cammack CX, Shubert SA, Rose MJ. Thermoluminescent Antimony-Supported Copper-Iodo Cuboids: Approaching NIR Emission via High Crystallographic Symmetry. Inorg Chem 2019; 58:16330-16345. [DOI: 10.1021/acs.inorgchem.9b00229] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- William V. Taylor
- Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Claudina X. Cammack
- Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Sofia A. Shubert
- Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Michael J. Rose
- Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, United States
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Wang D, Wu SY, Li HP, Yang Y, Roesky HW. Synthesis and Characterization of Copper Complexes with theN-(2,6-Diisopropylphenyl)-N′-acylthiourea Ligands. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201601451] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Dan Wang
- School of Chemistry and Chemical Engineering; Centre for Environment and Water Resource; Central South University; Lushannan Road 932 410083 Changsha P. R. China
| | - Su-Yun Wu
- School of Chemistry and Chemical Engineering; Centre for Environment and Water Resource; Central South University; Lushannan Road 932 410083 Changsha P. R. China
- Department of Materials and Chemical Engineering; Hunan Institute of Technology; Henghua Road 18 421002 Hengyang P. R. China
| | - Hai-Pu Li
- School of Chemistry and Chemical Engineering; Centre for Environment and Water Resource; Central South University; Lushannan Road 932 410083 Changsha P. R. China
| | - Ying Yang
- School of Chemistry and Chemical Engineering; Centre for Environment and Water Resource; Central South University; Lushannan Road 932 410083 Changsha P. R. China
| | - Herbert W. Roesky
- Institut für Anorganische Chemie; Universität Göttingen; Tammannstrasse 4 37077 Göttingen Germany
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9
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Structural, photolysis and biological studies of novel mixed metal Cu(I)-Sb(III) mixed ligand complexes. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2016; 163:261-8. [PMID: 27599113 DOI: 10.1016/j.jphotobiol.2016.08.041] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2016] [Accepted: 08/25/2016] [Indexed: 11/21/2022]
Abstract
Direct reaction of copper(I) halides with triphenylstibine (tpSb) and 2-mercapto-thiazolidine (tzdtH) in 1:1:1 molar ratio, results in the formation of the [CuX(μ2-S)-tzdtH)(tpSb)]2 (X=Cl (1), Br (2) and I (3)) complexes. The complexes have been characterized by melting point, FT-IR, UV-vis, (1)H NMR spectroscopic data and X-ray crystallography. Complexes 1-3 are di-nuclear and they are the first examples of mixed metals (CuSb), mixed ligand (thioamide, stibine and halogen) containing complexes. Two μ2-S (1-3) atoms bridge the two copper(I) ions with tetrahedral geometry. The coordination sphere around copper atoms is completed by one Sb from tpSb and one halogen (chlorine, bromine or iodine) atom. Intermolecular via N-H⋯X (Cl (1) and Br (2)) interactions stabilized the assembly. The short coppercopper bond distances of 3.103 (1), 3.061 (2) and 3.110, 3.108 (3) Ǻ found in 1-3 indicates d(10)-d(10) interaction between metal centers. The complexes exhibit high photo-sensitivity to UVB light. The complexes 1-3 and the already known [Cu(μ2-I)(tpSb)2]2 (4) were tested for their in vitro cytotoxic activity against human cancer cell lines: MCF-7 (breast, estrogen receptor (ER) positive), MDA-MB-231 (breast, estrogen receptor (ER) negative) and MRC-5 (normal human fetal lung fibroblast cells) with sulforhodamine B (SRB) colorimetric assay. Since estrogen receptors (ERs) are located in MCF-7, in contrast to MDA-MB-231 cells, the estrogenic effect of 1-4 on MCF-7 cells was studied by the mean of methylene blue assay. Compound 4 exhibits the highest estrogenic effect. None of 1-4 exceeds the activity of cisplatin against MCF-7 cells, but they are more active than cisplatin towards MDA-MB-231 cells. UVB light increases the effectiveness of complexes on MCF-7 cells which in the case of 4 is up to 28% higher than the corresponding initial complex (without irradiation).
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Urquiza NM, Naso LG, Martínez Medina JJ, Moyano MA, Lezama L, Williams PAM, Ferrer EG. Pharmacological activities of a propylthiouracil compound structurally modified by coordination with copper(II). J COORD CHEM 2016. [DOI: 10.1080/00958972.2016.1167885] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Nora M. Urquiza
- Facultad de Bioquímica, Química y Farmacia, Cátedra de Química Analítica, Instituto de Química Analítica, Universidad Nacional de Tucumán, San Miguel de Tucumán, Argentina
| | - Luciana G. Naso
- Facultad de Ciencias Exactas, Centro de Química Inorgánica (CEQUINOR/CONICET, UNLP), UNLP, La Plata, Argentina
| | - Juan J. Martínez Medina
- Facultad de Ciencias Exactas, Centro de Química Inorgánica (CEQUINOR/CONICET, UNLP), UNLP, La Plata, Argentina
- Departamento de Química, UNCAUS, Chaco, Argentina
| | - María A. Moyano
- Facultad de Bioquímica, Química y Farmacia, Cátedra de Química Analítica, Instituto de Química Analítica, Universidad Nacional de Tucumán, San Miguel de Tucumán, Argentina
| | - Luis Lezama
- Facultad de Ciencia y Tecnología, Departamento de Química Inorgánica, Universidad del País Vasco UPV/EHU, Bilbao, Spain
- BCMaterials, Parque Científico y Tecnológico de Bizkaia, Derio, Spain
| | - Patricia A. M. Williams
- Facultad de Ciencias Exactas, Centro de Química Inorgánica (CEQUINOR/CONICET, UNLP), UNLP, La Plata, Argentina
| | - Evelina G. Ferrer
- Facultad de Ciencias Exactas, Centro de Química Inorgánica (CEQUINOR/CONICET, UNLP), UNLP, La Plata, Argentina
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11
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Safin DA, Mitoraj MP, Robeyns K, Filinchuk Y, Vande Velde CML. Luminescent mononuclear mixed ligand complexes of copper(I) with 5-phenyl-2,2'-bipyridine and triphenylphosphine. Dalton Trans 2015; 44:16824-32. [PMID: 26347226 DOI: 10.1039/c5dt02755a] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Reaction of 5-phenyl-2,2'-bipyridine (L) with a mixture of CuI or [Cu(CH3CN)4]BF4 and PPh3 leads to mononuclear heteroleptic complexes [CuL(PPh3)I] (1) and [CuL(PPh3)2]BF4 (2). According to X-ray diffraction, L crystallizes in the monoclinic space group P21/n, exhibiting a disorder over four orientations. Complexes 1 and 2 crystallize in the monoclinic space groups P21/c and P21, respectively. 1 comprises a discrete neutral molecule, while 2 has an ionic structure containing [CuL(PPh3)2](+) and BF4(-). Both structures reveal that each tetracoordinated copper(i) atom is linked to two nitrogen atoms of L, one iodide and one PPh3 in the structure of 1, or two PPh3 in the structure of 2 with the formation of a distorted tetrahedral coordination core. The structure of 2 is additionally stabilized by a weak intramolecular ππ stacking interaction formed between two adjacent phenyl rings of two PPh3 ligands. Hirshfeld surface analysis showed that the structures of both complexes are mainly characterized by HH and CH contacts as well as by IH in the structure of 1 and FH in the structure of 2. The 2D fingerprint plots of two different molecules in the structure of L showed that both molecules exhibit contacts for ππ stacking interactions. The factors important for the stability of 1 and 2 were further quantitatively and qualitatively characterized by the charge and energy decomposition method ETS-NOCV. According to diffuse reflectance spectroscopy in the solid state, free L exhibits bands exclusively in the UV region, while the spectra of 1 and 2 also contain bands in the visible range up to about 500 and 600 nm. All three compounds were found to be emissive in the solid state. DFT calculations have shown that, while emission of L is due to the ligand-centered π→π* transition, luminescence of 1 and 2 was assigned to a (M + X)LCT and MLCT excited states, respectively.
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Affiliation(s)
- Damir A Safin
- Institute of Condensed Matter and Nanosciences, Molecules, Solids and Reactivity (IMCN/MOST), Université catholique de Louvain, Place L. Pasteur 1, 1348 Louvain-la-Neuve, Belgium.
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13
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Amosova SV, Yaroshenko TI, Larina LI, Timokhina LV, Potapov VA. Synthesis of Novel Pyrimidine Derivatives Containing the Vinylsulfanyl Group by Regio- and Stereoselective Addition of Thiouracils to Ethynyl Ketones. HETEROATOM CHEMISTRY 2014. [DOI: 10.1002/hc.21247] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Svetlana V. Amosova
- A. E. Favorsky Irkutsk Institute of Chemistry; Siberian Branch of the Russian Academy of Sciences; RUS-664033 Irkutsk Russia
| | - Tatyana I. Yaroshenko
- A. E. Favorsky Irkutsk Institute of Chemistry; Siberian Branch of the Russian Academy of Sciences; RUS-664033 Irkutsk Russia
| | - Lyudmila I. Larina
- A. E. Favorsky Irkutsk Institute of Chemistry; Siberian Branch of the Russian Academy of Sciences; RUS-664033 Irkutsk Russia
| | - Lyudmila V. Timokhina
- A. E. Favorsky Irkutsk Institute of Chemistry; Siberian Branch of the Russian Academy of Sciences; RUS-664033 Irkutsk Russia
| | - Vladimir A. Potapov
- A. E. Favorsky Irkutsk Institute of Chemistry; Siberian Branch of the Russian Academy of Sciences; RUS-664033 Irkutsk Russia
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Charalampou DC, Kourkoumelis N, Karanestora S, Hadjiarapoglou LP, Dokorou V, Skoulika S, Owczarzak A, Kubicki M, Hadjikakou SK. Mono- and binuclear copper(I) complexes of thionucleotide analogues and their catalytic activity on the synthesis of dihydrofurans. Inorg Chem 2014; 53:8322-33. [PMID: 25068385 DOI: 10.1021/ic500727z] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The reaction of copper(I) halides with 2-thiouracil (TUC), 6-methyl-2-thiouacil (MTUC), and 4-methyl-2-mercaptopyrimidine (MPMTH) in the presence of triphenylphosphine (tpp) in a 1:1:2 molar ratio results in a mixed-ligand copper(I) complex with the formulas [Cu2(tpp)4(TUC)Cl] (1), [Cu2(tpp)4(MTUC)Cl] (2), [Cu(tpp)2(MPMTH)Cl]·(1)/2CH3OH (3), [Cu(tpp)2(MTUC)Br] (4), and [Cu(tpp)2(MTUC)I]·(1)/2CH3CN (5). The complexes have been characterized by FT-IR, (1)H NMR, and UV-vis spectroscopic techniques and single-crystal X-ray crystallography. Complexes 1 and 2 are binuclear copper(I) complexes. Two phosphorus atoms from tpp ligands are coordinated to the copper(I) ions, forming two units that are linked to each other by a deprotonated TUC or MTUC chelating ligand through a sulfur bridge. A linear Cu-S-Cu moiety is formed. The tetrahedral geometry around the metal centers is completed by the nitrogen-donor atom from the TUC or MTUC ligand for the one unit, while for the other one, it is completed by the chloride anion. Two phosphorus atoms from two tpp ligands, one sulfur atom from MPMTH or MTUC ligand, and one halide anion (Cl, Br, and I) form a tetrahedron around the copper ion in 3-5 and two polymorphic forms of 4 (4a and 4b). In all of the complexes, either mono- or binuclear intramolecular O-H···X hydrogen bonds enhance the stability of the structures. On the other hand, in almost all cases of mononuclear complexes (with the exception of a symmetry-independent molecule in 4a), intermolecular NH···O hydrogen-bonding interactions lead to dimerization. Complexes 1-5 were studied for their catalytic activity for the intermolecular cycloaddition of iodonium ylides toward dihydrofuran formation by HPLC, (1)H NMR, and LC-HRMS spectroscopic techniques. The results show that the geometry and halogen and ligand types have a strong effect on the catalytic properties of the complexes. The highest yield of dihydrofurans was obtained when "linear" complexes 1 and 2 were used as the catalysts. The activity of the metal complexes on the copper(I)-catalyzed and uncatalyzed intramolecular cycloaddition of iodonium ylide is rationalized through electronic structure calculation methods, and the results are compared with the experimental ones.
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Affiliation(s)
- D C Charalampou
- Section of Inorganic and Analytical Chemistry, Department of Chemistry, ‡Medical Physics Laboratory, Medical School, §Section of Organic Chemistry, Department of Chemistry, and ⊥X-ray Unit, Department of Chemistry, University of Ioannina , 45110 Ioannina, Greece
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Lobana TS, Sandhu AK, Sultana R, Castineiras A, Butcher RJ, Jasinski JP. Coordination variability of CuIin multidonor heterocyclic thioamides: synthesis, crystal structures, luminescent properties and ESI-mass studies of complexes. RSC Adv 2014. [DOI: 10.1039/c4ra02748e] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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16
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Xia L, Lee YR. Efficient One-Pot Synthesis of Multi-Substituted Dihydrofurans by Ruthenium(II)-Catalyzed [3+2] Cycloaddition of Cyclic or Acyclic Diazodicarbonyl Compounds with Olefins. Adv Synth Catal 2013. [DOI: 10.1002/adsc.201300245] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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