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Journal articles on the topic 'Tetrakis derivatives'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

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1

Iwamoto, Shintaro, Yuu Inatomi, Daisuke Ogi, et al. "New tris- and pentakis-fused donors containing extended tetrathiafulvalenes: New positive electrode materials for rechargeable batteries." Beilstein Journal of Organic Chemistry 11 (July 8, 2015): 1136–47. http://dx.doi.org/10.3762/bjoc.11.128.

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Derivatives of tris-fused TTF extended with two ethanediylidenes (5), tris- and pentakis-fused TTFs extended with two thiophene-2,5-diylidenes (6–9) were successfully synthesized. Cyclic voltammograms of the tetrakis(n-hexylthio) derivative of 5 and 7 (5d, 7d) consisted of two pairs of two-electron redox waves and two pairs of one-electron redox waves. On the other hand, four pairs of two-electron redox waves and two pairs of one-electron redox waves were observed for the tetrakis(n-hexylthio) derivative of 9 (9d). Coin-type cells using the bis(ethylenedithio) derivatives of 5 (5b), 6 (6b) and

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2

Fournier, Jean-Hugues, Xin Wang, and James D. Wuest. "Derivatives of tetraphenylmethane and tetraphenylsilane: Synthesis of new tetrahedral building blocks for molecular construction." Canadian Journal of Chemistry 81, no. 5 (2003): 376–80. http://dx.doi.org/10.1139/v03-056.

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Useful derivatives of tetraphenylmethane and tetraphenylsilane have been synthesized by efficient methods that give crystalline products without chromatographic purification. New compounds include tetrakis(4-hydroxyphenyl)methane (21), tetrakis(4-formylphenyl)methane (22), tetrakis[(4-hydroxymethyl)phenyl]methane (23), tetrakis(4-bromophenyl)silane (24), tetrakis(4-iodophenyl)silane (25), tetrakis(4-hydroxyphenyl)silane (26), tetrakis[(4-hydroxymethyl)phenyl]silane (27), and tetrakis[(4-chloromethyl)phenyl]silane (28). These compounds are valuable precursors for the construction of complex mol

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3

NEDA, Ion, Ionel BALCU, and Corina MACARIE. "Ethoxy-tethered calix[4]arenes containing P(III) substituents and trimethylsiloxy groups as building blocks in supramolecular chemistry; cis/trans intra- and intermolecular complexation of dichloroplatinum(II) fragments." Revue Roumaine de Chimie 66, no. 2 (2021): 149–60. http://dx.doi.org/10.33224/rrch.2021.66.2.05.

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p-tert-Butylcalix[4]arene 1 reacts with bromoethyl acetate and LiAlH4 to form the p-tert-butyl-tetrakis(2-hydroxyethoxy)calix[4]arene 8 bearing four ethyl-spacers at the lower rim of the calixarene. Reaction of 8 with Et2NSiMe3 leads to the tetrakis-substituted derivative 9. Treatment of 9 with PF2Cl gives the stable tetrakis-fluorophosphite 10, while the reaction with 2-chloro-1,3,5-trimethyl-1,3,5-triaza-2σ3λ3-phosphorin-4,6-dione furnishes the tetrakis-substituted molecule 11. When 11 was allowed to react with SO2Cl2, formation of the tetrakis(2-chloro)ethyl substituted calix[4]arene 13 was

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4

Satta, Giuseppe, Silvia Gaspa, Luisa Pisano, Lidia De Luca, and Massimo Carraro. "5,10,15,20-Tetrakis-(4-(3-carbamoyl-pyridyl)-methylphenyl)porphyrin Bromide." Molbank 2024, no. 2 (2024): M1836. http://dx.doi.org/10.3390/m1836.

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The synthesis of a new tetracationic porphyrin derivative is described. Contrary to the best known derivatives in the literature, which are derived from 5,10,15,20-tetrakis-4-pyridylporphyrin (TPyP), in this procedure we start from 5,10,15,20-tetrakis-(4-carboxymethoxyphenyl)porphyrin (TPPCOOMe), obtained by the condensation reaction between pyrrole and 4-formylbenzoate. The reaction is carried out in refluxed xylene, avoiding the use of halogenated solvents. The final product, 5,10,15,20-tetrakis-(4-(3-carbamoyl-pyridyl)-methylphenyl)porphyrin bromide (P15p), exhibits four cationic portions t

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5

Jaafar, Mohammed Thamer, Luma Majeed Ahmed, and Rahman Tama Haiwal. "Synthesis, Characterization, and Electrochemical Study of Novel Porphyrin Derivatives as Corrosion Inhibitors for Carbon Steel in HCl Solutions." Indonesian Journal of Chemistry 24, no. 2 (2024): 379. http://dx.doi.org/10.22146/ijc.87682.

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This study involves the synthesis of some porphyrins derivatives, these are termed as 4,4',4'',4'''-(porphyrin-5,10,15,20-tetrayl)tetrakis(N-(6-aminoacridin-3-yl)benzamide) (3a), 4,4',4'',4'''-(porphyrin-5,10,15,20-tetrayl)tetrakis(N-(5-methoxybenzo[d]thiazol-2-yl)benzamide) (3b), 4,4'-(10,20-bis(3-hydroxyphenyl)porphyrin-5,15-diyl)bis(N-(6-aminoacridin-3yl)benzamide) (5a), and 4,4'-(10,20-bis(3-hydroxyphenyl)porphyrin-5,15-diyl)bis(N-(benzo[d]thiazol-2-yl)benzamide) (5b). These derivatives were synthesized using open circuit potential (OCP) and potentiodynamic polarization (PDP) in 0.1 M HCl

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6

Tanaka, Koichi, Takaichi Hiratsuka, Yuko Kojima, and Yasuko T. Osano. "Synthesis, Structure and Chiral Inclusion Crystallisation of Tetrakis(4-Ethynylphenyl)Ethylene Derivatives." Journal of Chemical Research 2002, no. 5 (2002): 209–12. http://dx.doi.org/10.3184/030823402103171889.

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Achiral host molecules, tetrakis(4-ethynylphenyl)ethylene 3 and tetrakis(4-bromoethynylphenyl)ethylene 4, formed chiral host–guest inclusion crystals with achiral guest molecules via weak intermolecular interactions.

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7

Ol’shevskaya, Valentina A., Elena G. Kononova, and Andrei V. Zaitsev. "Fluorinated maleimide-substituted porphyrins and chlorins: synthesis and characterization." Beilstein Journal of Organic Chemistry 15 (November 13, 2019): 2704–9. http://dx.doi.org/10.3762/bjoc.15.263.

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Maleimide-containing fluorinated porphyrins and chlorins were prepared based on the reaction of Zn(II) or Ni(II) complexes of 5,10,15,20-tetrakis(4-amino-2,3,5,6-tetrafluorophenyl)porphyrin and chlorin with maleic anhydride. Porphyrin maleimide derivatives were also prepared by the reaction of 5,10,15,20-tetrakis(4-azido-2,3,5,6-tetrafluorophenyl)porphyrinato Zn(II) or Ni(II) with N-propargylmaleimide via the CuAAC click reaction to afford fluorinated porphyrin–triazole–maleimide conjugates. New maleimide derivatives were isolated in reasonable yields and identified by UV–vis, 1H NMR, 19F NMR

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8

Pedrosa, Leandro F., Marcos C. de Souza, Maria A. F. Faustino, et al. "Porphyrin - Phosphoramidate Conjugates: Synthesis, Photostability and Singlet Oxygen Generation." Australian Journal of Chemistry 64, no. 7 (2011): 939. http://dx.doi.org/10.1071/ch11013.

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meso-Tetrakis(pentafluorophenyl)porphyrin reacts with aminoalkylphosphoramidates to afford porphyrins substituted with one or four phosphoramidate groups in the 4-position of the meso-aryl groups. The new porphyrin derivatives show high photostability and some are better singlet oxygen generators than meso-tetrakis(1-methylpyridinium-4-yl)porphyrin, a well known good singlet oxygen producer.

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9

Tesakova, M. V., and V. I. Parfenyuk. "Influence of the nature of monomer on electropolymerization processes and physical and chemical properties of films based on hydroxy-substituted tetraphenylporphyrins." Perspektivnye Materialy 3 (2021): 30–41. http://dx.doi.org/10.30791/1028-978x-2021-3-30-41.

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The ability to oxidatively polymerization from a solution in ethanol of tetraphenylporphyrin derivatives: 5,10,15,20-tetrakis(4-hydroxyphenyl)porphyrin, 5,10,15,20-tetrakis(3-hydroxyphenyl)porphyrin, Zn-5,10,15,20-tetrakis(4-hydroxyphenyl)porphyrin, Zn-5,10,15,20-tetrakis(3-hydroxyphenyl)porphyrin were studied. The polymerization of 5,10,15,20-tetrakis(3-hydroxyphenyl)porphyrin does not occur; three of the four studied porphyrins form thin transparent polyporphyrin films tightly adhered to the electrodes surface. The influence of the nature of the monomer, the deposition mode, and the supporti

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10

Carlucci, Lucia, Gianfranco Ciani, Simona Maggini, et al. "Synthesis and characterization of new tetra-substituted porphyrins with exo-donor carboxylic groups as building blocks for supramolecular architectures: Catalytic and structural studies of their metalated derivatives." Journal of Porphyrins and Phthalocyanines 14, no. 09 (2010): 804–14. http://dx.doi.org/10.1142/s1088424610002641.

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We report herein the synthesis of the porphyrins 5,10,15,20-tetrakis(4-carboxybiphenyl)-porphyrin (H2TCBP) and 5,10,15,20-tetrakis(4-carboxy-2,6-dimethylbiphenyl)porphyrin (H2TCDMBP) bearing diphenyl units on meso-positions, and of their cobalt and silver derivatives. The silver complexes of H2TCDMBP and of H2TCPP ( H2TCPP = 5 ,10,15,20-tetrakis(4-carboxyphenyl)porphyrin) were investigated by X-ray crystallography and their supramolecular organization elucidated. Co(TCBP) was reacted with copper formate, yielding a polymeric compound that showed a catalytic activity in the benzylic amination o

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11

Gomes, Ana T. P. C., Raquel A. C. Leão, Fernando C. da Silva та ін. "Synthesis of new glycoporphyrin derivatives through carbohydrate-substituted α-diazoacetates". Journal of Porphyrins and Phthalocyanines 13, № 02 (2009): 247–55. http://dx.doi.org/10.1142/s1088424609000279.

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12

Verkerk, Udo H., Robert McDonald, and Jeffrey M. Stryker. "Coordination chemistry of the tetrakis(2-hydroxyphenyl)ethene support mimic — Polymetallic magnesium, aluminum, and titanium derivatives." Canadian Journal of Chemistry 83, no. 6-7 (2005): 922–28. http://dx.doi.org/10.1139/v05-108.

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The crystal structures of magnesium, aluminum, and titanium coordination complexes of the structurally preorganized tetrakis(2-hydroxyphenyl)ethene are reported. As a result of the absence of steric shielding and the conformational flexibility of the ligand, pseudo-dimeric complexes are formed instead of crown- or raft-like compounds. The unsubstituted tetrakis(2-hydroxyphenyl)ethene ligand thus emulates the complexation characteristics of the sterically open calix[4]arene system.Key words: coordination chemistry, polymetallic, titanium complexes, magnesium complexes, aluminum complexes, tetra

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13

BAUER, ELVIRA M., CLAUDIO ERCOLANI, PAOLA GALLI, IRINA A. POPKOVA, and PAVEL A. STUZHIN. "Tetrakis(selenodiazole)porphyrazines 1: Tetrakis(selenodiazole)porphyrazine and its Mg(II) and Cu(II) Derivatives. Evidence for their Conversion to Tetrakis(pyrazino)porphyrazines through Octaaminoporphyrazines." Journal of Porphyrins and Phthalocyanines 03, no. 05 (1999): 371–79. http://dx.doi.org/10.1002/(sici)1099-1409(199906)3:5<371::aid-jpp140>3.0.co;2-f.

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The new phthalocyanine-like macrocycle tetrakis(selenodiazole)porphyrazine, TSeDPzH 2, and its Mg ( II ) and Cu ( II ) complexes have been prepared and their general, spectroscopic (IR, UV-vis), and magnetic properties investigated. It has been observed that the peripheral selenodiazole rings of the TSeDPz skeleton can be opened by the action of H 2 S , with release of the Se atoms and formation of a new macrocycle, i.e. octaaminoporphyrazine, which is easily converted into tetrakis(pyrazino)porphyrazine derivatives.

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14

Pola, Martin, Hana Kolarova, and Robert Bajgar. "Generation of singlet oxygen by porphyrin and phthalocyanine derivatives regarding the oxygen level." Journal of Medical Science 91, no. 4 (2022): e752. http://dx.doi.org/10.20883/medical.e752.

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Background. The principle of photodynamic effect is based on the combined action of photosensitiser, molecular oxygen and light, which produce various reactive oxygen species and are associated with significant cellular damage. Singlet oxygen is one of the most serious representatives, which is characterised by powerful oxidising properties. Moreover, concomitant hyperbaric oxygen treatment can support these effects. Therefore, the subject of our study was to compare the yields of singlet oxygen for four different photosensitizers in dependency on the oxygen concentration. Material and methods

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15

Gemmell, Colin, Gerardo C. Janairo, Jeremy D. Kilburn, Henning Ueck, and Allan E. Underhill. "Synthesis of unsymmetrical tetrakis(alkylsulfanyl)tetrathiafulvalene derivatives." Journal of the Chemical Society, Perkin Transactions 1, no. 19 (1994): 2715. http://dx.doi.org/10.1039/p19940002715.

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16

Larkin, D. Yu, A. A. Korlyukov, A. P. Pleshkova, N. A. Chernyavskaya, M. Yu Antipin, and A. I. Chernyavskii. "Synthesis of bifunctional tetrakis(trimethylsilyl)silane derivatives." Russian Chemical Bulletin 55, no. 3 (2006): 477–83. http://dx.doi.org/10.1007/s11172-006-0280-5.

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17

Trush, Viacheslav V., Sergiy G. Kharchenko, Vsevolod Yu Tanchuk, Vitaly I. Kalchenko, and Andriy I. Vovk. "Phosphonate monoesters on a thiacalix[4]arene framework as potential inhibitors of protein tyrosine phosphatase 1B." Organic & Biomolecular Chemistry 13, no. 33 (2015): 8803–6. http://dx.doi.org/10.1039/c5ob01247c.

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Monoester derivatives of thiacalix[4]arene tetrakis(methylphosphonic) acid were found to be capable of inhibiting protein tyrosine phosphatase 1B. In addition, these compounds can strongly bind to human serum albumin.

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18

Commins, Patrick J., Jonathan P. Hill, Yoshitaka Matsushita, et al. "Selective octabromination of tetraarylporphyrins based on meso-substituent identity: Structural and electrochemical studies." Journal of Porphyrins and Phthalocyanines 20, no. 01n04 (2016): 213–22. http://dx.doi.org/10.1142/s1088424615500972.

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Synthesis and isolation of selectively brominated tetraarylporphyrin derivatives is reported. Treatment with bromine of meso-5,10,15,20-tetrakis(3,4,5-trimethoxyphenyl)porphyrin (1) or meso-5,10,15,20-tetrakis(3,5-di-[Formula: see text]-butyl-4-hydroxyphenyl)porphinatocopper(II) (2-Cu) yields products octabrominated at the 2,6-positions of meso-aryl substituents [5,10,15,20-tetrakis(2,6-dibromo-3,4,5-trimethoxyphenyl)porphyrin, [Formula: see text]Br81] or macrocyclic [Formula: see text]-positions. The latter of these ([Formula: see text]-brominated) was identified as the oxoporphyrinogen 2,3,7

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19

A., K. JHA, N. YADAV S., KUMAR ARBIND, K. MISHRA L., K. ROY 'ANIL' K., and K. CHAUDHARY RATAN. "trans-Dihalo-tetrakis Complexes of Rhodium(III) with some Imidazole Derivatives." Journal of Indian Chemical Society Vol. 74, Aug 1997 (1997): 626–27. https://doi.org/10.5281/zenodo.5891527.

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Department of Chemistry, Patna University, Patna-800 005 L. N. M. U., Darbhanga <em>Manuscript received 2 July 1996, accepted 14 July 1996</em> <em>trans</em>-Dihalo-tetrakis Complexes of Rhodium(III) with some Imidazole Derivatives.

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20

Ojima, Juro, Hiroshi Kakumi, Kazuto Kitatani, Kazuyo Wada, Emiko Ejiri, and Tetsuya Nakada. "Tricyclic system containing large rings. The synthesis of fully-conjugated [12](1,3)[12](4,6)cyclophanpolyenepolyynes and related compounds." Canadian Journal of Chemistry 63, no. 11 (1985): 2885–91. http://dx.doi.org/10.1139/v85-479.

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For the purpose of preparing the ring-expanded analogue of anthracene, 1,2,4,5-tetrakis[(1E,3Z)-4-methylhexa-1,3-dien-5-ynyl]benzene, 8, and 1,2,4,5-tetrakis[(Z)-2(2-ethnylphenyl)ethenyl]benzene, 16, were oxidatively coupled; however, both of them afforded m-bridged derivatives, i.e., 1,3:4,6-bis[(1E,3Z,9Z,11E)-4,9-dimethyldodeca-1,3,9,11-tetraene-5,7-diyne-1,12-diyl]benzene, 3, and 1,3:4,6-bis[(1E,11E)-3,4:9,10-dibenzdodeca-1,11-diene-5,7-diyne-1,12-diyl]benzene, 5. To ascertain the structures of 3 and 5, the related model compounds were also prepared.

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21

Nikoo, Abbas, and Karim Akbari Dilmaghani. "Synthesis of 1,2,4,5-Tetrakis(1,2,4-Triazolyl) Benzene and 1,2,4,5-Tetrakis(1,3,4-Oxadiazolyl) Benzene Derivatives." Phosphorus, Sulfur, and Silicon and the Related Elements 187, no. 2 (2012): 268–75. http://dx.doi.org/10.1080/10426507.2011.597801.

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22

Çakır, Volkan. "Functional chalcone-substituted tetrakis-metallophthalocyanines: Synthesis and spectroscopic characterization." Journal of Chemical Research 44, no. 3-4 (2019): 148–51. http://dx.doi.org/10.1177/1747519819893047.

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In this study, a new phthalonitrile derivative, ( E)-4-(3-(3-(3-methoxyphenyl)acryloyl)phenoxy)phthalonitrile, and four peripherally ( E)-4-(3-(3-(3-methoxyphenyl)acryloyl)phenoxy) tetrasubstituted new Ni(II), Zn(II), Co(II), and Cu(II) phthalocyanine derivatives are synthesized and characterized. ( E)-4-(3-(3-(3-Methoxyphenyl)acryloyl)phenoxy)phthalonitrile is synthesized by heating ( E)-1-(3-hydroxyphenyl)-3-(3-methoxyphenyl)prop-2-en-1-one and 4-nitrophthalonitrile in the presence of K2CO3 in dry DMF at 60°C for 96 h. The metallophthalocyanines are prepared by cyclotetramerization of ( E)-4

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23

Thuita, Damaris, Dinusha Damunupola, and Christian Brückner. "Oxazolochlorins 21. Most Efficient Access to meso-Tetraphenyl- and meso-Tetrakis(pentafluorophenyl)porpholactones, and Their Zinc(II) and Platinum(II) Complexes." Molecules 25, no. 18 (2020): 4351. http://dx.doi.org/10.3390/molecules25184351.

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meso-Phenyl- and meso-pentafluorophenyl-porpholactones, their metal complexes, as well as porphyrinoids directly derived from them are useful in a number of technical and biomedical applications, and more uses are expected to be discovered. About a dozen competing and complementary pathways toward their synthesis were reported. The suitability of the methods changes with the meso-aryl group and whether the free base or metal derivatives are sought. These circumstances make it hard for anyone outside of the field of synthetic porphyrin chemistry to ascertain which pathway is the best to produce

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24

Decsi, Krammer, Hegedűs, et al. "Liver-on-a-Chip‒Magnetic Nanoparticle Bound Synthetic Metalloporphyrin-Catalyzed Biomimetic Oxidation of a Drug in a Magnechip Reactor." Micromachines 10, no. 10 (2019): 668. http://dx.doi.org/10.3390/mi10100668.

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Biomimetic oxidation of drugs catalyzed by metalloporphyrins can be a novel and promising way for the effective and sustainable synthesis of drug metabolites. The immobilization of 5,10,15,20-tetrakis(2,3,4,5,6-pentafluorophenyl)iron(II) porphyrin (FeTPFP) and 5,10,15,20-tetrakis-(4-sulfonatophenyl)iron(II) porphyrin (FeTSPP) via stable covalent or rapid ionic binding on aminopropyl-functionalized magnetic nanoparticles (MNPs-NH2) were developed. These immobilized catalysts could be efficiently applied for the synthesis of new pharmaceutically active derivatives and liver related phase I oxida

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25

Occhiuto, Ilaria Giuseppina, Roberto Zagami, Mariachiara Trapani, Maria Angela Castriciano, Andrea Romeo, and Luigi Monsù Scolaro. "Kinetic Investigation on Tetrakis(4-Sulfonatophenyl)Porphyrin J-Aggregates Formation Catalyzed by Cationic Metallo-Porphyrins." Molecules 25, no. 23 (2020): 5742. http://dx.doi.org/10.3390/molecules25235742.

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Under mild acidic conditions, various metal derivatives of tetrakis(4-N-methylpyridinium)porphyrin (gold(III), AuT4; cobalt(III), CoT4; manganese(III), MnT4 and zinc(II), ZnT4) catalytically promote the supramolecular assembling process of the diacid 5,10,15,20-tetrakis(4-sulfonatophenyl)porphyrin (H2TPPS4) into J-aggregates. The aggregation kinetics have been treated according to a well-established model that involves the initial formation of a critical nucleus containing m porphyrin units, followed by autocatalytic growth, in which the rate evolves as a power of time. An analysis of the exti

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26

de Meijere, Armin, Baldur Stulgies, Karsten Albrecht, et al. "New interesting molecular topologies by way of modern cross-coupling reactions." Pure and Applied Chemistry 78, no. 4 (2006): 813–30. http://dx.doi.org/10.1351/pac200678040813.

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Modern transition-metal-catalyzed cross-coupling reactions, especially of the Kumada, Heck, and Suzuki types, have provided facile access to various bridge-annelated [2.2]paracyclophane derivatives including trifoliaphane and its tribenzo analog. The reduction of trifoliaphane with potassium metal in [D8]-THF led to hexakis[p-benzyl]benzene anion, which could efficiently be trapped with various electrophiles. Highly efficient multifold Suzuki couplings were performed with hexabromobenzene, octabromonaphthalene, and hexabromotriphenylene. The obtained hexa- and octaalkenylarene derivatives disc

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27

Petrov, Viacheslav, Rebecca J. Dooley, Alexander A. Marchione, Elizabeth L. Diaz, Brittany S. Clem, and William Marshall. "Synthesis of purines and adenines containing the hexafluoroisopropyl group." Beilstein Journal of Organic Chemistry 16 (November 11, 2020): 2739–48. http://dx.doi.org/10.3762/bjoc.16.224.

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Several new derivatives of adenine, purine, and theophylline containing the (CF3)2CH group connected to a nitrogen atom of the imidazole ring were prepared by the reaction of 2,2,4,4-tetrakis(trifluoromethyl)-1,3-dithietane (1) with the corresponding substrates, resulting in the selective alkylation of one of the nitrogen atoms of the imidazole ring. The reaction proceeds under mild conditions in a polar solvent, giving the alkylated products in 47–78% yield. While for purine and 4- and 5-azabenzimidazole, the reaction led to a mixture of two isomers, the reaction of adenine and the correspond

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28

Chmovzh, Timofey N., and Oleg A. Rakitin. "tert-Butyl Bis(4′-(Hexyloxy)-[1,1′-biphenyl]-4-yl)carbamate." Molbank 2021, no. 3 (2021): M1247. http://dx.doi.org/10.3390/m1247.

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New donor building blocks, i.e., triarylamino derivatives, are of great interest for the production of organic photovoltaic materials. In this communication, bis(4′-(hexyloxy)-[1,1′-biphenyl]-4-yl)amine was synthesized in a two-step process via hydrolysis of its tert-butyl carbamate derivative. tert-Butyl bis(4′-(hexyloxy)-[1,1′-biphenyl]-4-yl)carbamate was obtained by Suzuki cross-coupling reaction of tert-butyl bis(4-bromophenyl)carbamate and (4-(hexyloxy)phenyl)boronic acid in the presence of tetrakis(triphenylphosphine)palladium(0). The structure of newly synthesized compounds was establis

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29

Hill, Jonathan P., Wim Van Rossom, Shinsuke Ishihara, et al. "Unexpected but convenient synthesis of soluble meso-tetrakis(3,4-benzoquinone)-substituted porphyrins." Journal of Porphyrins and Phthalocyanines 18, no. 03 (2014): 173–81. http://dx.doi.org/10.1142/s1088424613501071.

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A new route to 3,4-benzoquinone-substituted porphyrins is reported. In attempted nitration reactions on the copper(II) or nickel(II) complexes of 5,10,15,20-tetrakis(3,5-di-t-butyl-4-hydroxyphenyl)porphyrin using lithium nitrate in acetic anhydride-acetic acid/chloroform no nitration products could be detected with the main products being the corresponding complexes of 5,10,15,20-tetrakis(3,4-dioxo-5-t-butylcyclohexa-1,5-dienyl)porphyrin. These o-quinone-substituted porphyrins are available in reasonable yield (> 50%), their synthesis is simple and they are of good solubility. The electroch

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30

Saritha, Rajendhiran, Sesuraj Babiola Annes, and Subburethinam Ramesh. "Metal-free, regioselective, visible light activation of 4CzIPN for the arylation of 2H-indazole derivatives." RSC Advances 11, no. 23 (2021): 14079–84. http://dx.doi.org/10.1039/d1ra02372a.

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31

OHGUSHI, TAKERU, ZI-CHEN LI, FU-MIAN LI, TERUYUKI KOMATSU, SHINJI TAKEOKA, and EISHUN TSUCHIDA. "Photoexcitation and Electron Transfer Reactions of Zinc Lipidporphyrins in DMSO." Journal of Porphyrins and Phthalocyanines 03, no. 01 (1999): 53–59. http://dx.doi.org/10.1002/(sici)1099-1409(199901)3:1<53::aid-jpp103>3.0.co;2-b.

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The photophysical and photochemical properties of 5,10,15,20-tetrakis{α,α,α,α-o-[2′,2′-dimethyl-20′-((2″-(trimethylammonio)ethyl)phosphonatoxy)alkanamido]phenyl}porphinatozinc(II) (zinc lipidporphyrins, ZnLPs ( C 10, C 18)) have been studied in homogeneous DMSO solution and compared with those of 5,10,15,20-tetrakis{α,α,α,α-o-pivalamidophenyl}porphinatozinc(II) ( ZnTpivPP ) and tetrakis-phenylporphinatozinc(II) ( ZnTPP ). The fluorescence quantum yields of the ZnLPs were lower than that of ZnTPP , but their fluorescence lifetimes were relatively long. The electron transfer reactions from the p

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32

Ivanova, Yulia B., Svetlana G. Puhovskaya, Nugzar Zh Mamardashvili, and Oscar I. Koifman. "SPECTROPHOTOMETRIC STUDY OF ACID-BASE PROPERTIES OF SPATIAL-DISTORTED DERIVATIVES OF PORPHYRINS IN ACETONITRILE." IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENIY KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA 59, no. 6 (2018): 49. http://dx.doi.org/10.6060/tcct.20165906.5340k.

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Spectrophotometric titration method was used to study the acidic properties of: 5,10,15,20-tetrakis(thienyl-2-yl)-2,3,7,8,12,13,17,18-octaethylporphyrin (I), 5,10,15,20-tetrakis(4’-t-butylphenyl)-2,3,7,8,12,13,17,18-octaethylporphyrin (II), 5,10,15,20-tetrakis(3,5-di-t-butylphe-nyl)-2,3,7,8,12,13,17,18-octaethylporphyrin (III), 5,10,15,20-tetraphenyl-2,3,7,8,12,13,17,18-octaethylporphyrin (IV), 5,15-bis(4’-methoxyphenyl)-10,20-bis(4-nitro-phenyl)-2,8,12,18-tetrame-thyl-3,7,13,17-tetraarylporphyrin (V), 5,15-bis(4’-methoxyphenyl)-10,20-diphenyl-2,3,7,8,12,13, 17,18-octaethylporphyrin (VI), 5,15

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33

Chung, Mee-Kyung, Paul Fancy, and Jeffrey M. Stryker. "Bis(ether) derivatives of tetrakis(2-hydroxyphenyl)ethene — Direct synthesis of (E)- and (Z)-bis(2-hydroxyphenyl)-bis(2-methoxyphenyl)ethene via the McMurry olefination reaction." Canadian Journal of Chemistry 84, no. 10 (2006): 1250–53. http://dx.doi.org/10.1139/v06-087.

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The direct synthesis of sterically hindered, partially etherified derivatives of tetrakis(2-hydroxyphenyl)ethene is reported by using the McMurry reductive olefination reaction on a range of differentially substituted 2,2′-dialkoxy benzophenone substrates. Three orthogonal protection strategies are demonstrated, incorporating β-silylethyl, 3-butenyl, and tert-butyl protecting groups, respectively, into the starting benzophenones. The latter proved most efficient, with both the McMurry coupling and deprotection steps occurring concomitantly under the McMurry conditions to directly yield the des

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34

Ovsyannikov, A. S., M. H. Noamane, R. Abidi, et al. "Molecular tectonics: dimensionality and geometry control of silver coordination networks based on pyrazolyl appended thiacalixarenes." CrystEngComm 18, no. 5 (2016): 691–703. http://dx.doi.org/10.1039/c5ce02310f.

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Combinations of six new tetrakis-pyrazolyl appended calix[4]arenes derivatives, blocked in 1,3-A conformation as coordinating tectons, with AgX salts (X = NO<sub>3</sub><sup>−</sup>, BF<sub>4</sub><sup>−</sup>, XF<sub>6</sub><sup>−</sup> (X = P, As and Sb)) lead to nine new silver coordination networks.

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35

GEMMELL, C., G. C. JANAIRO, J. D. KILBURN, H. UECK, and A. E. UNDERHILL. "ChemInform Abstract: Synthesis of Unsymmetrical Tetrakis(alkylsulfanyl)tetrathiafulvalene Derivatives." ChemInform 26, no. 15 (2010): no. http://dx.doi.org/10.1002/chin.199515165.

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ANGELONI, SILVIA, and CLAUDIO ERCOLANI. "New classes of porphyrazine macrocycles with annulated heterocyclic rings." Journal of Porphyrins and Phthalocyanines 04, no. 05 (2000): 474–83. http://dx.doi.org/10.1002/1099-1409(200008)4:5<474::aid-jpp276>3.0.co;2-w.

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The present contribution summarizes the most recent results on the synthesis and chemical physical characterization of the new classes of porphyrazine macrocycles having annulated five- and seven-membered heterocyclic rings, i.e. tetrakis(thiadizole)porphyrazine, TTDPzH 2, tetrakis(selenodiazole)porphyrazine, TSeDPzH 2, tetrakis-2,3-(5,7dipheny-6H-1,4-diazepino)porphyrazine, Ph 8 DzPzH 2, and a number of their metal derivatives, prepared by using, respectively, 3,4-dicyano-1,2,5-thiadiazole, 3,4-dicyano-1,2,5-selenodiazole, and 5,7-diphenyl-2,3-dicyano-6H-1,4-diazepine as monomeric precursors.

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37

Zhang, Xiaoying, Luyao Liu, Yu Qiao, Jiaxin Liu, Aiguo Kong, and Yongkui Shan. "Sn(OH)x-assisted synthesis of mesoporous Mn-porphyrinic frameworks and their carbon derivatives for electrocatalysis." Dalton Transactions 48, no. 39 (2019): 14678–86. http://dx.doi.org/10.1039/c9dt03085a.

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38

Gagnon, Jonathan, Martin Vézina, Marc Drouin, and Pierre D. Harvey. "Regioselective upper-rim functionalizations of calix[4]arene by diphenylphosphino groups." Canadian Journal of Chemistry 79, no. 10 (2001): 1439–46. http://dx.doi.org/10.1139/v01-161.

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The regioselective upper-rim functionalization of calix[4]arene have been performed to prepare all the multisubstituted diphenylphosphine derivatives. In addition, the X-ray structures of 5,17-dibromo-11,23-bis(diphenylphosphino)-25,26,27,28-tetra-n-propoxycalix[4]arene and 5,11,17,23-tetrakis(diphenylphosphino)-25,26,27,28-tetra-i-propoxy-calix[4]arene have been determined. Regioselective functionalizations have been achieved using methods that involve appropriate choices of bases, alkyllithium-solvent systems, stoichiometry, and reaction times. A new and convenient method for selectively pre

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39

Benoit-Vical, Françoise, Anne Robert, and Bernard Meunier. "Potentiation of Artemisinin Activity against Chloroquine-Resistant Plasmodium falciparum Strains by Using Heme Models." Antimicrobial Agents and Chemotherapy 43, no. 10 (1999): 2555–58. http://dx.doi.org/10.1128/aac.43.10.2555.

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ABSTRACT The influence of different metalloporphyrin derivatives on the antimalarial activity of artemisinin was studied with two chloroquine-resistant strains of Plasmodium falciparum(FcB1-Colombia and FcM29-Cameroon) cultured in human erythrocytes. This potentiation study indicates that the manganese complex ofmeso-tetrakis(4-sulfonatophenyl)porphyrin has a significant synergistic effect on the activity of artemisinin against bothPlasmodium strains.

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40

Sălăgeanu, Luminița, Delia Muntean, Horhat Florin George, et al. "Antimicrobial activity of different substituted meso-porphyrin derivatives." Revista Romana de Medicina de Laborator 28, no. 2 (2020): 205–16. http://dx.doi.org/10.2478/rrlm-2020-0014.

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AbstractThe increasing resistance against classical antibiotic treatment forces the researchers to develop novel non-toxic antimicrobial agents. The aim of this study was to determine the antimicrobial properties of seven different porphyrins having distinctive hydrophobicity/hydrophilicity: P1 meso-tetra(4-methoxy-phenyl)porphyrin, P2 Zn(II)-meso-5,10,15,20-tetrapyridylporphyrin, P3 meso-tetra(p-tolyl)porphyrin, P4 5,10,15,20-tetraphenylporphyrin; P5 (5,10,15,20-tetraphenylporphinato) dichlorophosphorus(V) chloride, P6 5,10,15,20-tetrakis-(N-methyl-4-pyridyl) porphyrin-Zn(II) tetrachloride, P

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41

Stuzhin, P. A., E. M. Bauer, and C. Ercolani. "Tetrakis(thiadiazole)porphyrazines. 1. Syntheses and Properties of Tetrakis(thiadiazole)porphyrazine and Its Magnesium and Copper Derivatives." Inorganic Chemistry 37, no. 7 (1998): 1533–39. http://dx.doi.org/10.1021/ic9609259.

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42

OHTA, KAZUCHIKA, MASAHIRO ANDO, and IWAO YAMAMOTO. "Discotic Liquid Crystals of Transition metal Complexes 23: Synthesis and Mesomorphism of Tetrakis(3,4-di-n-alkylphenyl)porphyrin Derivatives and Their Metal Complexes." Journal of Porphyrins and Phthalocyanines 03, no. 04 (1999): 249–58. http://dx.doi.org/10.1002/(sici)1099-1409(199904)3:4<249::aid-jpp129>3.0.co;2-i.

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Five novel long-chain-substituted porphyrin derivatives, tetrakis(3,4-dialkylphenyl)porphyrins (abbreviated as (Cn)8 TPPH 2 (n = 8, 12, 18), ( C 18)8 TPPCu and ( C 18)8 TPPNi ), were synthesized and their mesomorphism was investigated. It was found that the (Cn)8 TPPH 2 (n = 8, 12), derivatives are isotropic liquids at room temperature and that each of the ( C 18)8 TPPM ( M ≡ H 2, Cu , Ni ) derivatives has two liquid crystal phases M1 and M2 and two unidentified phases X1 and X2. It was revealed by X-ray studies that the M2 phase is a discotic lamellar (DL) phase. Interestingly, these porphyri

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43

SHIN, DONG-MYUNG, DONG-MEE SONG, GEEWON CHUNG, and KYEONGTAE KIM. "COMPLEXATION OF AROMATIC MOLECULES WITH NEW CALIXARENE DERIVATIVES CONTAINING TWO ARYL SULFIDE RINGS." Journal of Nonlinear Optical Physics & Materials 14, no. 04 (2005): 513–20. http://dx.doi.org/10.1142/s0218863505002967.

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The cuplike structure of calix[4]arenes is one of the most attractive features, which has been observed both in the solid state and in solution. The newly synthesized 5,11,17,23-tetrakis(3-mercaptopropyl)calix[4]arene (1) and 25,26,27,28-tetrakis(5-mercaptopenthoxy)calix[4]arene containing aryl sulfide rings (2), have four alkyl thiol linkages, which allow the calixarenes to attach onto the gold surface. Surface plasmon resonance (SPR) spectroscopy allows us to monitor the binding of calixarene derivatives on the gold surface. The 1 and 2 bind very effectively on the gold surface and self-asse

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44

Mikata, Yuji, Minako Shibata, Yasuko Baba, Toyoji Kakuchi, Misaki Nakai, and Shigenobu Yano. "Synthesis and photodynamic properties of maltohexaose-conjugated porphyrins." Journal of Porphyrins and Phthalocyanines 16, no. 11 (2012): 1177–85. http://dx.doi.org/10.1142/s1088424612501155.

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A series of porphyrin derivatives with one to four maltohexaose moieties in their meso positions have been synthesized. Zinc or free-base m-THPP (5,10,15,20-tetrakis(m-hydroxyphenyl)-porphyrin) was used as the porphyrin platform. The reaction of m-THPP with 3-iodopropyl nonadecaacetylmaltohexaoside afforded a mixture of all possible combinations of glycoconjugated porphyrins having one to four maltohexaose moieties; monoglycosylated (Ac-1), bisglycosylated (Ac-cis-2 and Ac-trans-2), triglycosylated (Ac-3), and tetraglycosylated (Ac-4) porphyrins were obtained in 11–26% yield. Removal of acetyl

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45

Worlinsky, Jill L., Gloria Zarate, Matthias Zeller, Masoud Ghandehari, Gamal Khalil та Christian Brückner. "Oxazolochlorins 11: Tuning the dynamic high pH sensing range of [meso-tetraarylporpholactonato]M(II) complexes by variation of the central metal ion, the aryl substituents, and introduction of a β-nitro group". Journal of Porphyrins and Phthalocyanines 17, № 08n09 (2013): 836–49. http://dx.doi.org/10.1142/s1088424613500478.

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Based on the high pH-sensing ability of [meso-tetrakis(pentafluorophenyl) porpholactonato]-platinum(II), we investigated the influence of the metal ( M = Zn ( II ), Ni ( II ), Cu ( II ), Pd ( II ), Ag ( II ), Pt ( II )), the aryl group ( Ar = C 6 H 5, C 6 F 5), and the presence of a β- NO 2 group on the pH sensing range. The syntheses of the novel β-nitroporpholactone derivatives are described, and their regiochemistry deduced by spectroscopic and single crystal X-ray diffraction methods. The UV-vis base titration midpoints for all derivatives were determined in an aqueous solution containing

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46

Arasavelli, Ananda Mohan, Ganapavarapu Veera Raghava Sharma, and Siddaiah Vidavalur. "Design, synthesis, and anticancer activity of novel aryl/heteroaryl chalcone derivatives." Heterocyclic Communications 22, no. 1 (2016): 1–5. http://dx.doi.org/10.1515/hc-2015-0271.

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AbstractA new series of chalcones 5a–l were synthesized and evaluated for in vitro antiproliferative activity against human colon cancer cell lines. The synthesis of the key intermediate compounds 3a–d was achieved by tetrakis(triphenylphosphine) palladium(II) mediated Suzuki cross coupling reaction. Chalcone 5a shows superior anticancer activity with IC50 value of 21.0 μg/mL compared to the IC50 value of the reference drug doxorubicin at 21.65 μg/mL.

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47

Berezina, Nadezhda M., Mikhail B. Berezin, and Aleksander S. Semeikin. "Solvation interactions and photostability of tetrakis(1-methylpyridyl)porphyrin derivatives." Journal of Molecular Liquids 290 (September 2019): 111196. http://dx.doi.org/10.1016/j.molliq.2019.111196.

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48

Brandt, K., and Z. Jedliński. "New monospirocyclic tetrakis (aziridinyl) cyclotriphosphazene derivatives as potential antitumor drugs." Die Makromolekulare Chemie 9, S19851 (1985): 169–74. http://dx.doi.org/10.1002/macp.1985.020091985124.

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49

Ghosh, Amrita, T. Selvamani, D. Amilan Jose, Amitava Das, and I. Mukhopadhyay. "Generation of Nanostructures by the Aggregation of Porphyrin Derivatives with Long Alkane Chain in Mix-Solvent." Journal of Nanomaterials 2007 (2007): 1–8. http://dx.doi.org/10.1155/2007/47234.

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Controlled aggregation of tetrakis-(4-(hexadecyl oxy)-phenyl) porphyrin and its copper(II)-complex was studied in mix-solvent system at room temperature. Structure of the aggregates was characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), powder X-ray diffraction (XRD), and UV-visible spectroscopy. TEM results indicated the formation of organized nanostructures from the porphyrin derivative and its corresponding copper(II)-complex. XRD results showed that the bulk and nanostructured free porphyrin derivatives had the similar crystalline morphology. UV-vi

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50

Dudkin, Semyon V., Elena A. Makarova, Ludmila K. Slivka, and Evgeny A. Lukyanets. "Synthesis and properties of tetra- and octacationicmeso-tetrakis(3-pyridyl)bacteriochlorin derivatives." Journal of Porphyrins and Phthalocyanines 18, no. 01n02 (2014): 107–14. http://dx.doi.org/10.1142/s1088424613501162.

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The synthesis and properties of new water-soluble tetra- and octacationic derivatives of meso-tetrakis(3-pyridyl)bacteriochlorin are reported. Tetracationic salt was synthesized by quaternization of the pyridine groups of starting bacteriochlorin with 1,4-dibromobutane. Octacationic salts were obtained by treating of tetracationic salt with excess of pyridine or N,N-dimethylaminoethanol. Zinc complexes of water-soluble bacteriochlorin derivatives were prepared by direct metalation of corresponding non-metal compounds with zinc acetylacetonate, unlike to neutral bacteriochlorin which forms zinc

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