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Journal articles on the topic 'Copper Derivatives'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

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1

Wang, Zixing, Jun Zhu, Zhiwei Liu, et al. "Thermally activated delayed fluorescence of co-deposited copper(i) complexes: cost-effective emitters for highly efficient organic light-emitting diodes." Journal of Materials Chemistry C 5, no. 28 (2017): 6982–88. http://dx.doi.org/10.1039/c7tc01531c.

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TADF copper(i) complexes were made by co-depositing carboline derivatives and copper iodide. δ-Carboline derivative-based OLEDs showed 6 times higher efficiency than α-carboline derivative-based ones.

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2

Alekseeva, Olga, Svetlana Chulovskaya, Nadezhda Bagrovskaya, and Vladimir Parfenyuk. "Copper Nanopartical Composites Based on Cellulose Derivatives." Chemistry & Chemical Technology 5, no. 4 (2011): 447–50. http://dx.doi.org/10.23939/chcht05.04.447.

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3

Attar, Tarik, Boulanouar Messaoudi, and Naceur Benhadria. "DFT Theoretical Study of Some Thiosemicarbazide Derivatives with Copper." Chemistry & Chemical Technology 14, no. 1 (2020): 20–25. http://dx.doi.org/10.23939/chcht14.01.020.

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4

Balaramesh, P., S. Jayalakshmi, V. Anitha, Absara Fdo, and P. Venkatesh. "Effect of Active Dithiocarbamate Derivatives on Copper Nano Film Deposition." Indian Journal Of Science And Technology 16, no. 17 (2023): 1260–67. http://dx.doi.org/10.17485/ijst/v16i17.98.

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5

Vastag, Gy, E. Szöcs, A. Shaban, and E. Kálmán. "New inhibitors for copper corrosion." Pure and Applied Chemistry 73, no. 12 (2001): 1861–69. http://dx.doi.org/10.1351/pac200173121861.

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The study of the effectiveness of several potential copper corrosion inhibitors in acidic media was studied. The investigated thiazole derivative functional groups contain heterocyclic atoms such as nitrogen, sulfur, and oxygen. Thiazole derivatives, 5-benzylidene-2,4-dioxotetrahydro-1,3-thiazole (BDT) 5-(4¢-isopropylbenzylidene)-2,4-dioxotetrahydro-1,3-thiazole (IPBDT), 5-(3¢-thenylidene)-2,4-dioxotetrahydro-1,3-thiazole (TDT), and 5-(3¢,4¢-dimetoxybenzylidene)-2,4-dioxotetrahydro-1,3-thiazole (MBDT) were tested for copper corrosion inhibition properties. The electrolyte solution was 0.1 M Na

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6

Gill, Dip S., Raghubir Singh, Dilbag S. Rana, Jörg Wagler, and Edwin Kroke. "Preparation, Characterization, X-Ray Structure Determination and Solution Properties of some Novel Copper(I) Bisulfate and Sulfate Salts and Their Stable Derivatives." Zeitschrift für Naturforschung B 66, no. 10 (2011): 1042–48. http://dx.doi.org/10.1515/znb-2011-1009.

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Two highly unstable copper(I) salts, i. e. copper(I) bisulfate tetraacetonitrile, [Cu(CH3CN)4]HSO4, and dicopper(I) sulfate octaacetonitrile, [Cu(CH3CN)4]2SO4, and their stable derivatives with 2,9- dimethyl-1,10-phenanthroline (DMPhen) have been prepared in pure form and characterized by elemental, spectral and chemical analysis. Single-crystal X-ray studies of [Cu(CH3CN)4]HSO4 and its derivative [Cu(DMPhen)2]HSO4 have been carried out. The solution behavior of both of these salts and their derivatives have been investigated using UV/Vis, IR, 63Cu NMR spectroscopy and molar conductance in a n

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7

Thompson, Laurence K., Sanat K. Mandal, Jean-Pierre Charland, and Eric J. Gabe. "Magnetism and structure in a series of halogen and hydroxo-bridged binuclear copper(II) diazine complexes. Structure of a dibromobridged derivative [Cu2(C14H10N4S2)Br4]." Canadian Journal of Chemistry 66, no. 2 (1988): 348–54. http://dx.doi.org/10.1139/v88-060.

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The ligand PTP (3,6-bis(2-pyridylthio)pyridazine) generates both hydroxo- and halogeno-bridged, square-pyramidal, binuclear copper(II) complexes ([Cu2(PTP)X4] (X = Cl (I), Br (II)); [Cu2(PTP)(OH)X3] (X = Cl (IV), Br (V)), which are antiferromagnetically coupled. The hydroxo-bridged derivatives are more strongly coupled than those with just halogen bridges and within each pair of complexes substantially increased spin exchange is observed for the bromo-derivatives (−2J = 130.5 ± 0.4 (I), 243.5 ± 0.3 (II), 294 ± 3 (IV), 326 ± 6 (V) cm−1). A related halogen-bridged derivative [Cu2(PAP46Me)Cl4] (I

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8

Bazarova, E. A. "Study of complexing properties of mono-derivatives of alkenyl succinic acid with copper(II) and nickel(II) ions." Transaction Kola Science Centre 11, no. 3-2020 (2020): 10–15. http://dx.doi.org/10.37614/2307-5252.2020.3.4.001.

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Mono-derivatives of alkenyl succinic acid are considered in this paper, also their complexes with copper and nickel ions, which structure was studied by IR spectrometry method. Protonization constants and stability constants of complexes of mono-derivatives of succinic acid with copper and nickel ions are calculated by pH-metric titration method. It has been established, that mono-derivatives of succinic acid formed more stable complexes with the copper ion.

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9

Varlan, K. Ye, V. Yu Kuzminskyi, O. V. Chervakov, and O. S. Sverdlikovska. "Amide and amidoester fatty acid derivatives as multifunctional components of protective alkyd urethane coatings." Voprosy Khimii i Khimicheskoi Tekhnologii, no. 4 (September 2024): 10–16. http://dx.doi.org/10.32434/0321-4095-2024-155-4-10-16.

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In order to expand the range of practically useful products based on renewable raw materials, a number of fatty acid derivatives, products of sunflower oil processing, were synthesized. The reaction of methyl esters of fatty acids with mono-, diethanolamine and piperazine yielded the corresponding amides of fatty acids. By reacting ethanolamide derivatives with maleic anhydride, maleated amidoester derivatives of fatty acids containing free carboxyl or hydroxyl groups were synthesized. A copper-containing product was prepared by the interaction of the dimaleinated derivative with copper acetat

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10

Sakurai, T. "Anaerobic reactions of Rhus vernicifera laccase and its type-2 copper-depleted derivatives with hexacyanoferrate(II)." Biochemical Journal 284, no. 3 (1992): 681–85. http://dx.doi.org/10.1042/bj2840681.

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Anaerobic reactions of Rhus vernicifera laccase and its type-2 copper-depleted derivatives with hexacyanoferrate(II) were investigated by absorption and e.s.r. spectroscopy. When native laccase was treated with excess hexacyanoferrate(II), the type-1 and type-2 coppers were immediately reduced and the e.s.r. signal due to type-3 copper was transiently observed. After incubation, a novel e.s.r. signal (g parallel = 2.31, g perpendicular = 2.08) developed together with the type-1 copper signal. Only the novel e.s.r. signal was left after the sample had been treated with ascorbate. In the corresp

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11

Foulon, J. P., M. Bourgain-Commerçon, and J. F. Normant. "Vinyl copper derivatives n° 29." Tetrahedron 42, no. 5 (1986): 1389–97. http://dx.doi.org/10.1016/s0040-4020(01)87358-0.

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12

Pert, DJ, and DD Ridley. "Preparations of 2,4-Disubstituted Oestradiols." Australian Journal of Chemistry 42, no. 3 (1989): 421. http://dx.doi.org/10.1071/ch9890421.

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2,4-Dibromoestra-1,3,S(10)-triene-3,17 β- diol 3-(2'-hydroxyethyl) ether (8) undergoes reaction with copper(11) chloride/sodium methoxide to afford a 4-bromo [2,3]- dioxan derivative (9) as the major product together with a minor amount of a 2-bromo [3,4]- dioxan derivative (10). These compounds were used to prepare a number of 2,4-disubstituted oestradiol derivatives. � Alternative routes to other 2,4-disubstituted oestradiols are described.

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13

Saalfrank, Rolf W., Roland Harbig, Oliver Struck, et al. "Eindimensionale Kupfer(II)-Koordinationspolymere: Kristall-Engineering durch variable Verknüpfungsmuster [1] / One Dimensional Copper(II) Coordination Polymers: Crystal Engineering through Variable Types of Linkage [1]." Zeitschrift für Naturforschung B 52, no. 1 (1997): 125–34. http://dx.doi.org/10.1515/znb-1997-0124.

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Reaction of a methanolic copper(II) acetate solution with tetrazolyl enol derivatives 2a or 2b leads to the formation of the corresponding lD-coordination polymer 1∞[CuL2] 3a and pseudo 1D-coordination polymer [CuL2]2 3b, respectively. On the contrary, reaction of 2c with methanolic copper(II) acetate solution yields OH-bridged 1D-coordination polymer 1∞[CuL2(MeOH)2 3c. Single-crystal X-ray diffraction of the supramolecular species 3 established unequivocally the structures of the stairlike coordination compounds. Reaction of a methanolic copper(II) acetate solution with amidotetrazole derivat

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14

Tomovic, Dusan Lj, Andriana M. Bukonjic, Aleksandar Kocovic, et al. "Synthesis, Characterization, and Cytotoxicity of Binuclear Cooper(II)-Complexes with some S-Alkenyl Derivatives of Thiosalicyclic Acid." Serbian Journal of Experimental and Clinical Research 18, no. 1 (2017): 13–18. http://dx.doi.org/10.1515/sjecr-2016-0071.

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Abstract New complexes of copper(II) with S-alkenyl derivatives of thiosalicylic acid (alkenyl = propenyl-(L1), isobutenyl-(L2)) have been synthesized and characterized by microanalysis, infrared spectra, magnetic measurements, and by NMR spectra. The cytotoxic activity of two newly synthesized precursor S-alkenyl derivatives of thiosalicylic acid were tested using an MTT colorimetric technique on HCT-116 human colon carcinoma cells. The cytotoxic effect of the copper(II)- complexes were higher compared to the cytotoxicity of the corresponding ligand (for concentrations from 31.25 to 250 μM).

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15

Valencia, Jhesua, Oriel A. Sánchez-Velasco, Jorge Saavedra-Olavarría, Patricio Hermosilla-Ibáñez, Edwin G. Pérez, and Daniel Insuasty. "N-Arylation of 3-Formylquinolin-2(1H)-ones Using Copper(II)-Catalyzed Chan–Lam Coupling." Molecules 27, no. 23 (2022): 8345. http://dx.doi.org/10.3390/molecules27238345.

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3-formyl-2-quinolones have attracted the scientific community’s attention because they are used as versatile building blocks in the synthesis of more complex compounds showing different and attractive biological activities. Using copper-catalyzed Chan–Lam coupling, we synthesized 32 new N-aryl-3-formyl-2-quinolone derivatives at 80 °C, in air and using inexpensive phenylboronic acids as arylating agents. 3-formyl-2-quinolones and substituted 3-formyl-2-quinolones can act as substrates, and among the products, the p-methyl derivative 9a was used as a substrate to obtain different derivatives su

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16

Bietsch, Jonathan, Anji Chen, Dan Wang, and Guijun Wang. "Synthesis of a Series of Trimeric Branched Glycoconjugates and Their Applications for Supramolecular Gels and Catalysis." Molecules 28, no. 16 (2023): 6056. http://dx.doi.org/10.3390/molecules28166056.

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Carbohydrate-derived molecular gelators have found many practical applications as soft materials. To better understand the structure and molecular gelation relationship and further explore the applications of sugar-based gelators, we designed and synthesized eight trimeric branched sugar triazole derivatives and studied their self-assembling properties. These included glucose, glucosamine, galactose, and maltose derivatives. Interestingly, the gelation properties of these compounds exhibited correlations with the peripheral sugar structures. The maltose derivative did not form gels in the test

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17

Kantak, Abhishek A., Louis Marchetti, and Brenton DeBoef. "Regioselective C–H bond amination by aminoiodanes." Chemical Communications 51, no. 17 (2015): 3574–77. http://dx.doi.org/10.1039/c4cc10246k.

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A new approach for the direct amination of 2-phenylpyridine derivatives using a diphthalimide-iodane and copper triflate has been developed. A series of different 2-phenylpyridine derivatives were aminated with yields up to 88%. Mechanistic investigations indicate that the reaction proceeds via a copper-mediated single electron transfer.

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18

Mladěnka, Přemysl, Jana Karlíčková, Marcel Hrubša, et al. "Interaction of 2,6,7-Trihydroxy-Xanthene-3-Ones with Iron and Copper, and Biological Effect of the Most Active Derivative on Breast Cancer Cells and Erythrocytes." Applied Sciences 10, no. 14 (2020): 4846. http://dx.doi.org/10.3390/app10144846.

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Metal chelators can be potentially employed in the treatment of various diseases, ranging from metal overload to neoplastic conditions. Some xanthene derivatives were previously reported to complex metals. Thus, in a search for a novel iron or copper chelator, a series of 9-(substituted phenyl)-2,6,7-trihydroxy-xanthene-3-ones was tested using a competitive spectrophotometric approach. The most promising compound was evaluated in biological models (breast adenocarcinoma cell lines and erythrocytes). In general, substitution of the benzene ring in position 9 had a relatively low effect on the c

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19

zanello, Piero, and Piero leoni. "An electrochemical investigation on mononuclear and dinuclear copper(I) aminocarbonyl complexes." Canadian Journal of Chemistry 63, no. 4 (1985): 922–27. http://dx.doi.org/10.1139/v85-153.

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The electrochemical behaviour of some copper(I) aminocarbonyl derivatives, namely, [Cu(dien)(CO)]+ (dien = diethylenetriamine), [Cu(Medpt)(CO)]+ (Medpt = N,N-bis(3-aminopropyl)methylamine), [Cu2(tmen)2(μ-PhCO2)(μ-CO)]+ (tmen = N,N,N′,N′-tetramethylethylenediamine), has been studied in dimethyl sulfoxide solution at platinum electrodes by cyclic and dc voltammetry, and controlled potential coulometry. In all studied complexes each copper(I) centre undergoes one-electron charge transfers in both anodic and cathodic processes. The electrogenerated copper(II) complexes, fully characterized, can be

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20

Gyorfi, Nandor, Emese Farkas, Norbert Nemet, Csaba Weber, Zoltan Novak, and Andras Kotschy. "Copper-Catalyzed Trifluoromethylation of Alkoxypyridine Derivatives." Molecules 25, no. 20 (2020): 4766. http://dx.doi.org/10.3390/molecules25204766.

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The trifluoromethylation of aromatic and heteroaromatic cores has attracted considerable interest in recent years due to its pharmacological relevance. We studied the extension of a simple copper-catalyzed trifluoromethylation protocol to alkoxy-substituted iodopyridines and their benzologs. The trifluoromethylation proceeded smoothly in all cases, and the desired compounds were isolated and characterized. In the trifluoromethylation of 3-iodo-4-methoxyquinoline, we observed a concomitant O-N methyl migration, resulting in the trifluoromethylated quinolone as a product. Overall, the described

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21

Liang, Jia, Ying Fu, Xiazhen Bao, et al. "Cyanation of glycine derivatives." Chemical Communications 57, no. 24 (2021): 3014–17. http://dx.doi.org/10.1039/d0cc08126d.

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22

Earley, Daniel F., Jose Esteban Flores, Amaury Guillou, and Jason P. Holland. "Photoactivatable bis(thiosemicarbazone) derivatives for copper-64 radiotracer synthesis." Dalton Transactions 51, no. 13 (2022): 5041–52. http://dx.doi.org/10.1039/d2dt00209d.

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In recent years, copper-64 and copper-67 have been considered as a useful theranostic pair in nuclear medicine. Here, we report a photochemically-mediated approach for radiolabelling biologically relevant protein with copper radionuclides.

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23

Gharat, Vaishnav D., and Vishvanath D. Patil. "Multicomponent synthesis of pyrazole-3-one under mild conditions using an effective novel ceria-doped copper nanocatalyst." Research Journal of Chemistry and Environment 29, no. 1 (2024): 52–60. https://doi.org/10.25303/291rjce052060.

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Synthesis of pyrazole-3-one derivative was successfully catalyzed by a copper nanocatalyst that had been doped with cerium. With outstanding yields of pyrazol- 3-one derivatives, this approach has been applied to a wide range of substrates including electrophilic and sterically hindered aromatic aldehydes. The remarkable selectivity under mild conditions of this commercially available inexpensive catalyst is an attractive feature of this method.

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24

Janeba, Zlatko, Jan Balzarini, Graciela Andrei, Robert Snoeck, Erik De Clercq, and Morris J. Robins. "Synthesis and biological evaluation of 5-(alkyn-1-yl)-1-(p-toluenesulfonyl)uracil derivatives." Canadian Journal of Chemistry 84, no. 4 (2006): 580–86. http://dx.doi.org/10.1139/v06-041.

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Sonogashira coupling of 5-iodouracil (2) and trimethylsilylacetylene gave 5-(trimethylsilylethynyl)uracil (3), which was deprotected to give 5-ethynyluracil (4). Copper(I)-catalyzed cyclization of 4 gave furo[2,3-d]pyrimidin-2(3H)-one (5). Tosylation of 2 and 4 gave the 1-(p-toluenesulfonyl) derivatives 6 and 7, respectively. The tosylated compound 6 and trimethylsilylacetylene did not undergo Sonogashira coupling, and copper(I)-catalyzed cyclization of 7 did not occur. Coupling of 2 with several terminal alkynes gave 5-(alkyn-1-yl)uracil derivatives (9), which underwent tosylation to produce

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25

Colorado-Solís, David, Rodrigo Castro-Ramírez, Francisco Sánchez-Bartéz, Isabel Gracia-Mora, and Norah Barba-Behrens. "Novel Sulfone 2-Aminobenzimidazole Derivatives and Their Coordination Compounds: Contribution of the Ethyl and Phenyl Substituents on Non-Covalent Molecular Interactions; Biological Antiproliferative Activity." Inorganics 11, no. 10 (2023): 392. http://dx.doi.org/10.3390/inorganics11100392.

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New sulfone 2-aminobenzimidazole derivatives were designed and synthesized. Their nickel(II), copper(II), zinc(II), cadmium(II) and mercury(II) compounds were obtained and fully characterized by spectroscopic and analytical techniques. Single crystal X-ray structural analysis was performed in order to study the relevant intra and inter non-covalent interactions, mainly H···π, lone pair···π, and π···π, highlighting the difference between the terminal ethyl and phenyl groups in such interactions. Dimeric and trimeric supramolecular syntons were found for some of these compounds. Additionally, th

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26

Shahid, Muhammad, Asif Ali Tahir, Mazhar Hamid, et al. "Copper(II) Oligomeric Derivatives for Deposition of Copper Thin Films." European Journal of Inorganic Chemistry 2009, no. 8 (2009): 1043–50. http://dx.doi.org/10.1002/ejic.200801053.

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27

Leman, Loic, Laurent Saniere, Philippe Dauban, and Robert H. Dodd. "Copper-catalyzed aziridination of allylglycine derivatives." Arkivoc 2003, no. 6 (2003): 126–34. http://dx.doi.org/10.3998/ark.5550190.0004.615.

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28

Li, Ming, Jiabin Ning, Le Yu, and Lirong Wen. "Copper-Promoted Synthesis of Thiochromones Derivatives." Chinese Journal of Organic Chemistry 36, no. 11 (2016): 2715. http://dx.doi.org/10.6023/cjoc201605032.

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29

He, Heng, Lanlan Lü, Jianquan Liu, and Xiangshan Wang. "Copper-Catalyzed Synthesis of Benzofuropyrimidoisoindole Derivatives." Chinese Journal of Organic Chemistry 44, no. 11 (2024): 3427. https://doi.org/10.6023/cjoc202404005.

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30

Souza, P., M. A. Mendiola, A. Arquero, V. Fernández, E. Gutiérrez-Puebla, and C. Ruiz-Valero. "Copper(II) Complexes of Hydrazone Derivatives." Zeitschrift für Naturforschung B 49, no. 2 (1994): 263–71. http://dx.doi.org/10.1515/znb-1994-0219.

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Three benzil based, macrocyclic oxygen-, nitrogen-, and sulfur-containing ligands, (3,4,10,11 -tetraphenyl-1,2,5,6,8,9,12,13-octaazacyclotetradeca-7,14-dithione-2,4,9,11 -tetraene) ethanol (L1), 10,1 l-diethoxy-3,4,10,11-tetraphenyl-1,2,5,6,8,9,12,13-octaazacyclotetradeca- 7.14-dithione-2,4-diene (L2), (3,4,10,11 -tetraphenyl-1,2,5,6,8,9,12,13-octaazacyclotetradeca- 7.14-dione-2,4,9,l 1-tetraene) ethanol (L3); a cyclic ligand, 6-ethoxy-l,6-diphenyl-4-oxo- 3,4,5,6-tetrahydro-2,3,5-triazine (L5) and two open chain ligands, benzilsemicarbazone (L6) and benzilbisthiosemicarbazone (L4) are reported

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31

Bykowska, A., R. Starosta, J. Jezierska, and M. Jeżowska-Bojczuk. "Coordination versatility of phosphine derivatives of fluoroquinolones. New CuI and CuII complexes and their interactions with DNA." RSC Advances 5, no. 98 (2015): 80804–15. http://dx.doi.org/10.1039/c5ra07483e.

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32

Elo, Hannu, and Paavo Lumme. "Antiproliferative Activity of Derivatives of trans-Bis(salicylaldoximato)copper(II) in vitro. Some in vivo Properties of the Parent Compound." Zeitschrift für Naturforschung C 41, no. 9-10 (1986): 951–55. http://dx.doi.org/10.1515/znc-1986-9-1024.

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Several derivatives and analogs of the recently reported antiproliferative and antitumor agent trans-bis(salicylaldoximato) copper(II) (CuSAO2) have been prepared and tested for antiproliferative activity against L1210 leukemia cells in vitro. The salicylaldimine analog of CuSAO2 had a very strong antiproliferative activity, the 2-day IC50 value being lower than 3 μg/ml- The 2,3-dihydroxybenzaldoxime analog was equally active with CuSAO2, while the corresponding 2,5-dihydroxy derivative had a slightly lower activity. The 2,3,4-trihydroxybenzaldoxime derivative had a much lower activity than ha

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33

Cardoso, Richelly, Renan Valente, Clauber Henrique Souza da Costa, et al. "Analysis of Kojic Acid Derivatives as Competitive Inhibitors of Tyrosinase: A Molecular Modeling Approach." Molecules 26, no. 10 (2021): 2875. http://dx.doi.org/10.3390/molecules26102875.

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Tyrosinases belong to the functional copper-containing proteins family, and their structure contains two copper atoms, in the active site, which are coordinated by three histidine residues. The biosynthesis of melanin in melanocytes has two stages depending on the actions of the natural substrates L-DOPA and L-tyrosine. The dysregulation of tyrosinase is involved in skin cancer initiation. In the present study, using molecular modeling tools, we analyzed the inhibition activity of tyrosinase activity using kojic acid (KA) derivatives designed from aromatic aldehydes and malononitrile. All deri

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34

A., SYAMAL. "EPR Spectra of Copper(II) Complexes with Biguanide Derivatives." Journal of Indian Chemical Society Vol. 64, Dec 1987 (1987): 719–21. https://doi.org/10.5281/zenodo.6237126.

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Department of Chemistry, Regional Engineering College, Kurukshetra-132 119  <em>Manuscript received 7 August 1987, revised 14 October 1987, accepted 73 November 2987</em> Copper(II) complexes of quadridentate ligands, <em>viz</em>., ethylenedibiguanide, trimetbylenedibiguanide, <em>m</em>-phenylenedibiguanide, piperazinedibiguanide, and bidentate ligand phenylbiguanide have been studied by epr spectroscopy in polycrystalline form and in the corresponding Ni<sup>II</sup> complex matrix. Epr spectra of the complexes hi the corresponding Ni<sup>II</sup> complex matrix exhibit

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35

Jeong, Jisu, Donggun Lee, and Sukbok Chang. "Copper-catalyzed oxygen atom transfer of N-oxides leading to a facile deoxygenation procedure applicable to both heterocyclic and amine N-oxides." Chemical Communications 51, no. 32 (2015): 7035–38. http://dx.doi.org/10.1039/c5cc01739d.

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36

López, Luis A., and Javier González. "Copper(i)-carbenes as key intermediates in the [3 + 2]-cyclization of pyridine derivatives with alkenyldiazoacetates: a computational study." Organic & Biomolecular Chemistry 17, no. 3 (2019): 646–54. http://dx.doi.org/10.1039/c8ob02676a.

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This work reports a computational study of the copper(i)-catalyzed regioselective synthesis of indolizine derivatives through the [3 + 2]-cyclization reaction of vinyldiazo acetates and pyridine derivatives.

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37

Malik, Michał, and Sławomir Jarosz. "Synthesis of polyhydroxylated decalins via two consecutive one-pot reactions: 1,4-addition/aldol reaction followed by RCM/syn-dihydroxylation." Beilstein Journal of Organic Chemistry 12 (December 1, 2016): 2602–8. http://dx.doi.org/10.3762/bjoc.12.255.

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Synthesis of novel polyhydroxylated derivatives of decalin is described. The presented methodology consists in a one-pot copper-catalyzed 1,4-addition of vinylmagnesium bromide to sugar-derived cyclohexenone, followed by an aldol reaction with a derivative of but-3-enal. The obtained diene is then subjected to an assisted tandem catalytic sequence: ring-closing metathesis with the subsequent reuse of the Ru-catalyst in the syn-dihydroxylation. The stereochemical outcome of these reactions is discussed.

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38

Paquet, C., T. Lacelle, B. Deore, et al. "Pyridine–copper(ii) formates for the generation of high conductivity copper films at low temperatures." Chemical Communications 52, no. 12 (2016): 2605–8. http://dx.doi.org/10.1039/c5cc07737k.

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39

Barbon, Stephanie M., Samantha Novoa, Desiree Bender, Hilary Groom, Leonard G. Luyt, and Joe B. Gilroy. "Copper-assisted azide–alkyne cycloaddition chemistry as a tool for the production of emissive boron difluoride 3-cyanoformazanates." Organic Chemistry Frontiers 4, no. 2 (2017): 178–90. http://dx.doi.org/10.1039/c6qo00640j.

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Emissive BF<sub>2</sub> complexes of 3-cyanoformazanates produced using CuAAC chemistry are described. Highlights include ferrocene-substituted derivatives with ‘turn-on’ fluorescence upon oxidation and a water soluble derivative with application as a cell-imaging agent.

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40

Zhu, Yuan Na, Ya Ming Chen, Shen Guang Ge, and Jing Hua Yu. "Determination of Trace Copper with Sulfophenylazo Rhodanine by Catalytic Dynamic Spectrofluorimetry." Advanced Materials Research 710 (June 2013): 112–16. http://dx.doi.org/10.4028/www.scientific.net/amr.710.112.

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Series new methods were established which were based on the research of determination of trace copper with four sulfophenylazo rhodanine derivatives by catalytic dynamic spectrofluorimetry under the optimum conditions. This proposed method was applied to the determination of copper in real samples with satisfactory results. According to experiment results, the influences of different active groups and substitution positions on fluorescent property of rhodanine derivatives were investigated and the relationship between molecule structure and fluorescent property was explored.

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41

Shi, Liangliang, Yuyuan Wang, Haijun Yang, and Hua Fu. "Copper-catalyzed bis-arylations of alkenes leading to oxindole derivatives." Org. Biomol. Chem. 12, no. 24 (2014): 4070–73. http://dx.doi.org/10.1039/c4ob00576g.

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A simple and practical copper-catalyzed approach to oxindole derivatives by copper-catalyzed bis-arylation of N-alkyl-N-phenylacrylamides with diaryliodonium triflates has been developed under mild conditions, and the method is of tolerance towards some functional groups in the substrates.

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42

Foulon, J. P., M. Bourgain-Commerçon та J. F. Normant. "Vinyl copper derivatives 30 reactivity of γ-silylated vinyl copper reagents". Tetrahedron 42, № 5 (1986): 1399–406. http://dx.doi.org/10.1016/s0040-4020(01)87359-2.

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43

Depa, Navaneetha, and Harikrishna Erothu. "DESIGN AND SYNTHESIS OF NOVEL PERILLYL-4HPYRANTRIAZOLE DERIVATIVES." Rasayan Journal of Chemistry 15, no. 01 (2022): 302–9. http://dx.doi.org/10.31788/rjc.2022.1516629.

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We report a set of twelve rationally designed and library of perillyl-4H-pyrantriazole derivatives (6a-6l) through a sequence of a multicomponent reaction followed by copper-catalyzed cycloaddition. The intermediate 4-aryl-4Hpyran (4) was obtained by three-component condensation of 5,5-dimethylcyclohexane-1,3-dione) (1), 4-(prop-2-yn1-yloxy) benzaldehyde (2) and malononitrile (3). To this intermediate, azido benzenes (5) were subjected using copper catalyze cycloaddition to produce perillyl-4H-pyrantriazole derivatives in better to good yields. All compounds were validated by mass, 13C-NMR, FT

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44

Jung, Hee Jin, Hyeon Seo Park, Hye Jin Kim, et al. "Design, Synthesis, and Anti-Melanogenic Activity of 2-Mercaptomethylbenzo[d]imidazole Derivatives Serving as Tyrosinase Inhibitors: An In Silico, In Vitro, and In Vivo Exploration." Antioxidants 13, no. 10 (2024): 1248. http://dx.doi.org/10.3390/antiox13101248.

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2-Mercaptomethylbenzo[d]imidazole (2-MMBI) derivatives were designed and synthesized as tyrosinase (TYR) chelators using 2-mercaptomethylimidazole scaffolds. Seven of the ten 2-MMBI derivatives exhibited stronger inhibition of mushroom TYR activity than kojic acid. Their ability to chelate copper ions was demonstrated through experiments using the copper chelator pyrocatechol violet and assays measuring TYR activity in the presence or absence of exogenous CuSO4. The inhibition mechanisms of derivatives 1, 3, 8, and 9, which showed excellent TYR inhibitory activity, were elucidated through kine

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45

Padnya, Pavel, Ksenia Shibaeva, Maxim Arsenyev, et al. "Catechol-Containing Schiff Bases on Thiacalixarene: Synthesis, Copper (II) Recognition, and Formation of Organic-Inorganic Copper-Based Materials." Molecules 26, no. 8 (2021): 2334. http://dx.doi.org/10.3390/molecules26082334.

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For the first time, a series of catechol-containing Schiff bases, tetrasubstituted at the lower rim thiacalix[4]arene derivatives in three stereoisomeric forms, cone, partial cone, and 1,3-alternate, were synthesized. The structure of the obtained compounds was proved by modern physical methods, such as NMR, IR spectroscopy, and HRMS. Selective recognition (Kb difference by three orders of magnitude) of copper (II) cation in the series of d-metal cations (Cu2+, Ni2+, Co2+, Zn2+) was shown by UV-vis spectroscopy. Copper (II) ions are coordinated at the nitrogen atom of the imine group and the n

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46

GALLARDO-GUERRERO, LOURDES, BEATRIZ GANDUL-ROJAS, and M. ISABEL MÍNGUEZ-MOSQUERA. "Chlorophyll Pigment Composition in Table Olives (cv. Gordal) with Green Staining Alteration." Journal of Food Protection 62, no. 10 (1999): 1167–71. http://dx.doi.org/10.4315/0362-028x-62.10.1167.

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Metallochlorophyllic complexes of copper are present in green table olives, showing the alteration known as green staining. They were formed stepwise in such a way that new metallochlorophyll derivatives were detected as the fruits became more altered. Cu-15-glyoxylic acid pheophytin a was the first compound formed, followed in order by Cu-pheophytin a, Cu-15-glyoxylic acid pheophytin b, Cu-15-formyl-pheophytin a, and Cu-pyropheophytin a. Pigment analysis in fruits classified according to the surface area affected by green staining showed a progressive increase in the concentration of all copp

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47

Barrett, Stephen, Michele De Franco, Chiara Donati, Cristina Marzano, Valentina Gandin, and Diego Montagner. "Novel Biotinylated Cu(II)-Phenanthroline Complexes: 2D and 3D Cytotoxic Activity and Mechanistic Insight." Molecules 28, no. 10 (2023): 4112. http://dx.doi.org/10.3390/molecules28104112.

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The interest in the use of copper as a metal scaffold for the development of novel chemotherapeutics has considerably grown in recent years. This is mainly due to the relatively lower toxicity of copper complexes with respect to platinum drugs (i.e., cisplatin), the different mechanisms of action, and the cheaper cost. In the last decades, hundreds of copper-based complexes were developed and screened as anticancer agents, with the antesignanus of all compounds being copper bis-phenanthroline [Cu(phen)2]2+ developed by D.S. Sigman in the late 1990s. In particular, copper(phen) derivatives have

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48

Shao, Long, and Xiang-Ping Hu. "Copper-catalyzed intermolecular asymmetric propargylic dearomatization of phenol derivatives." Chemical Communications 53, no. 58 (2017): 8192–95. http://dx.doi.org/10.1039/c7cc03034g.

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A copper-catalyzed intermolecular asymmetric propargylic dearomatization of phenol derivatives with excellent control of chemo-, regio- and enantioselectivities. With the support of a chiral tridentate ketimine P,N,N-ligand, the reaction gave rise to a variety of optically active cyclohexadienone derivatives with up to >99% ee.

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49

Yatabe, Masashi, Akio Kajitani, Mikio Yasutake, and Kazuchika Ohta. "Discotic liquid crystals of transition metal complexes, 55: Novel chlorine-substituted phthalocyanine derivatives showing mesomorphism and low HOMO energy level." Journal of Porphyrins and Phthalocyanines 22, no. 01n03 (2018): 32–45. http://dx.doi.org/10.1142/s1088424617500717.

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We have synthesized a series of novel phthalocyaninato copper(II) (abbreviated as PcCu) compounds, 1,4,8,11,15,18,22,25-octakisalkoxy-2,3,9,10,16,17,23,24-octachloro-phthalocyaninato copper(II) (abbreviated as ([Formula: see text]-C[Formula: see text]O)[Formula: see text]-Cl)[Formula: see text]PcCu (4a–4d): [Formula: see text] 6 (a), 8 (b), 10 (c) and 12 (d)) and, for comparison, another series of PcCu compounds, 1,4,8,11,15,18,22,25-octakisalkoxyphthalocyaninato copper(II) (abbreviated as ([Formula: see text]-C[Formula: see text]O)[Formula: see text]PcCu (1a–1d)). The PcCu derivatives 1a–1d a

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50

Natella, Fausta, Gianni Pastore, Altero Aguzzi, Paolo Gabrielli, Nicoletta Nardo, and Roberto Ambra. "The Fate of the Chlorophyll Derivatives in Olives Preserved and/or Packaged in Presence of Exogenous Copper." Molecules 28, no. 10 (2023): 4250. http://dx.doi.org/10.3390/molecules28104250.

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Chlorophyll pigments are thought to be responsible for the highly appreciated green color of unfermented Castelvetrano-style table olives, but no studies have considered the effects of a controlled addition of copper during storage or packaging at the industrial level. For this purpose, chlorophyll derivatives were analyzed in Nocellara cultivar table olives debittered industrially using the Castelvetrano method, via means of HPLC and MS analyses, following the addition of copper in alkaline brines stored at 4 °C for 3 months in 220 L barrels, and during the subsequent storage in acid brines i

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