Article
Chemistry, Physical
S. A. Dzhumadullaeva, A. B. Baeshov
Summary: The catalytic activity of synthetic ion-exchange resins in the reaction between cis-butenedioic acid and hydrazine was studied, with KU-2-8 and KRF-10P cation exchangers identified as the most effective catalysts. A probable mechanism of the process, involving the formation of adsorption complexes and the participation of fixed polymer-bound sulfonate ions and counterions of the cation exchanger, was proposed based on IR spectroscopic studies.
RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A
(2021)
Article
Chemistry, Multidisciplinary
Kentaro Kawai, Kazuki Ikeda, Akane Sato, Akira Kabasawa, Masahiro Kojima, Kenta Kokado, Akira Kakugo, Kazuki Sada, Tatsuhiko Yoshino, Shigeki Matsunaga
Summary: Dynamic covalent bonds are useful tools, but their applications are limited by the activation conditions. This study reports the dynamic covalent bonding properties of 1,2-disubstituted 1,2-dihydro-1,2,4,5-tetrazine-3,6-dione and its hetero-Diels-Alder reactions at room temperature.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Multidisciplinary
Shankar D. Dhengale, Chandrashekhar Rode, Govind B. Kolekar, Prashant Anbhule
Summary: A simple method for the synthesis of indeno-[1,2-b]-quinoline-9,11-(6H,10H)-dione derivatives and 7,7-dimethyl-10-aryl-7,8-dihydro-5H-indeno[1,2-b]quinoline-9,11(6H,10H)-diones has been investigated. The reaction involves the use of aromatic aldehydes, indan-1,3-dione, dimedone, and p-toluidine/ammonium acetate in the presence of a CuO catalyst supported on zeolite-Y in ethanol under reflux conditions. The catalyst showed both Bronsted acid sites and Lewis acid sites, and could be recycled with minimal decrease in yield up to five recycles.
Article
Chemistry, Organic
Yun-Hai Sun, Cheng-Jing Li, Ji-Ming Xi, Zhong-Lin Wei, Wei-Wei Liao
Summary: An electrochemical three-component transformation was developed for the synthesis of sulfonylated fused sultams using N-cyanamide alkene, Na2S2O5, and sulfonyl hydrazide. The reaction proceeds in an undivided electrolysis cell without a supporting electrolyte, utilizing cost-effective and easy-to-handle sodium metabisulfite as a SO2 surrogate. This sustainable and modular approach allows for the efficient construction of cyclic sulphonamides with a broad substrate scope and available reaction components.
ORGANIC CHEMISTRY FRONTIERS
(2023)
Review
Chemistry, Multidisciplinary
Shi-Hui Shi, Yujie Liang, Ning Jiao
Summary: Selective C-C bond cleavage using electrochemical methods has been identified as a sustainable and scalable strategy that shows potential in replacing chemical reagents with electricity. Progress in this area has been made, with more examples of C-C bond cleavage via different maneuvers being developed recently, showcasing the exciting potential of electrochemical synthesis.
Article
Chemistry, Multidisciplinary
Dominik Neukum, Lorena Baumgarten, Dominik Wust, Bidyut Bikash Sarma, Erisa Saraci, Andrea Kruse, Jan-Dierk Grunwaldt
Summary: This study investigated the oxidation of unrefined HMF solutions obtained from saccharides in chicory roots, showing the critical role of base in increasing FDCA yield and the significant influence of amino acids from bio-sources on catalytic activity. A supported AuPd(2:1)/C alloy catalyst exhibited superior activity and stability.
Article
Electrochemistry
Heydar Hameed Salman Arkwazee, Niloofar Mohamadighader, Davood Nematollahi, Arash Rabiee, Hojjat Alizadeh
Summary: This article describes a method for synthesizing new sulfonamide derivatives using electrochemical methods without toxic reagents, and finds that these products have good antibacterial performance against bacteria.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Review
Chemistry, Multidisciplinary
Leyla Gidi, John Amalraj, Claudio Tenreiro, Galo Ramirez
Summary: This article presents the advantages and applications of simultaneously producing H2 and FDCA through electrochemical methods, as well as the benefits of carrying out both reactions in a coupled system. The latest progress in using different electrocatalyst materials for electrochemical production is explored, and challenges associated with large-scale production are proposed.
Article
Chemistry, Physical
Negin Hajsafari, Zhina Razaghi, Seyed Hadi Tabaian
Summary: This study found that garlic extract, as a corrosion inhibitor, can form an antioxidant layer on the aluminum surface, increasing pit initiation rate, but decreasing corrosion damage propagation over time; garlic extract at a concentration of 8 mL.L-1 showed the most effective enhancement of corrosion resistance.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Organic
Krishnappa B. Badiger, Lokesh Koodlur Sannegowda, Kantharaju Kamanna
Summary: In this study, 1H-pyrazolo[1,2-b]phthalazine-5,10-dione was synthesized through a condensation reaction of aryl aldehyde, malononitrile, or ethyl cyanoacetate, and phthalhydrazide catalyzed by water extract of papaya bark ash (WEPBA) solvent medium under microwave irradiation. The catalytic medium is environmentally friendly, simple, inexpensive, high yielding, and does not require hazardous solvent. Some derivatives were characterized by FT-IR, H-1-NMR, C-13-NMR, and mass spectrometry techniques. The synthesized compounds were studied for their oxidation-reduction properties and in vitro antioxidant activity.
POLYCYCLIC AROMATIC COMPOUNDS
(2023)
Article
Chemistry, Multidisciplinary
Kiran R. Khillare, Dipak S. Aher, Laxmikant D. Chavan, Sunil G. Shankarwar
Summary: A solid catalyst named Cs-3 was synthesized using a simple, cheap, clean, and eco-friendly method. It was found to be highly active and reusable for the synthesis of uracil derivatives under solvent-free conditions.
Article
Electrochemistry
Hamed Goljani, Zahra Tavakkoli, Davood Nematollahi
Summary: A green method for the one-pot electrochemical synthesis of a novel highly oxygenated heterocycle dye, PSO, has been successfully developed. The synthesis was performed using anodic oxidation of DHP in the presence of BSA, with the proposed mechanism supported by electrochemical evidence. The synthesis was conducted under environmentally friendly conditions, achieving high yields of PSO.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
Article
Engineering, Mechanical
S. Salaji, N. H. Jayadas
Summary: Chaulmoogra oil, a non-edible oil with unique fatty acid constituents, shows potential as a lubricant base stock due to its environmental advantages. Research on its physicochemical, viscometric, oxidative, and tribological properties, as well as the impact of antiwear additives, has indicated promising wear performance improvement. Further studies are needed to address issues such as high pour point values and wear scar diameter for optimal industrial application.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART J-JOURNAL OF ENGINEERING TRIBOLOGY
(2021)
Article
Electrochemistry
Ru Meng, Feng Li, Dan Li, Baokang Jin
Summary: Benzo[c]cinnolines, important compounds in medicinal chemistry, possess promising anticancer and antioxidant activity. Electrochemical reduction of DNBP in the presence of CO2 provides a theoretical and practical path for the synthesis of bioactive benzo[c]cinnolines with high selectivity.
Article
Chemistry, Multidisciplinary
Milad Nesarvand, Davood Azarifar, Hakimeh Ebrahimiasl
Summary: In this study, Fe3O4@SiO2-imine/phenoxy-Cu(II) was used as a catalyst to achieve the successful synthesis of two types of compounds under solvent-free conditions, demonstrating advantages such as easy purification, catalytic reusability, green and mild procedure, and high yields within short reaction time.
RESEARCH ON CHEMICAL INTERMEDIATES
(2021)
Article
Chemistry, Analytical
Razzagh Rahimpoor, Abdulrahman Bahrami, Davood Nematollahi, Farshid Ghorbani Shahna, Maryam Farhadian
Summary: In this study, a magnetic-dispersive solid-phase extraction (DSPE) method was developed for the extraction and desorption of muconic acid from real urine samples. Fe3O4-SiO2-NH2@ UiO-66 was used as a Metal-Organic Framework (MOF) in the DSPE for extraction followed by HPLC analysis. The method showed good detection limit, wide linear dynamic range, and high correlation coefficient, indicating its efficiency for the extraction and analysis of muconic acid from urine samples.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY
(2022)
Article
Multidisciplinary Sciences
Amir Mohammad Naseri, Mahmoud Zarei, Saber Alizadeh, Saeed Babaee, Mohammad Ali Zolfigol, Davood Nematollahi, Jalal Arjomandi, Hu Shi
Summary: A metal-organic framework with sulfonic acid tags was synthesized and applied in organic synthesis reactions; studies on the synthesis of pyridine derivatives were conducted using the newly synthesized mesoporous catalyst.
SCIENTIFIC REPORTS
(2021)
Article
Chemistry, Analytical
Mahmood Masoudi Khoram, Niloofar Mohamadighader, Davood Nematollahi, Sadegh Khazalpour, Hossein Masoumi, Hojjat Alizadeh
Summary: A green electrochemical method was developed for the synthesis of new spiro and dispiro pyrimidine derivatives. The reactivity of the nucleophile (barbituric acids) was found to be crucial in determining the type of product. The synthesized compounds showed good antibacterial performance against gram-positive bacteria.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Article
Multidisciplinary Sciences
Zahra Souri, Mahmood Masoudi Khoram, Davood Nematollahi, Mohammad Mazloum-Ardakani, Hojjat Alizadeh
Summary: Electrochemical oxidation of imipramine in aqueous solutions was studied, showing a complex behavior at different pH values. The oxidation of imipramine at a pH of about 5 led to the formation of a unique dimer, which was fully characterized. A possible reaction mechanism for the oxidation process was proposed. The synthesized dimer exhibited fluorescence activity and good antibacterial performance.
SCIENTIFIC REPORTS
(2022)
Article
Electrochemistry
Faezeh Zivari-Moshfegh, Davood Nematollahi
Summary: A new derivative of desloratadine (DQ-TBC complex) was synthesized for the first time using a green electrochemical method. The electrooxidation of 4-tert-butylcatechol (TBC) in the presence of desloratadine (DES) was investigated to optimize the synthesis conditions of DQ-TBC complex. The results suggest that the electrooxidation of TBC in the presence of DES leads to DQ through an ECE mechanism. The synthesized compound showed promising antibacterial activity against Bacillus cereus and Staphylococcus aureus.
ELECTROCHIMICA ACTA
(2022)
Article
Chemistry, Analytical
Fahimeh Varmaghani, Vahid Nemati
Summary: The electrochemical oxidation of urazoles in the presence of various amines was studied, demonstrating competition between oxidative ring cleavage of urazoles, electrocatalytic oxidation of amines (EC' mechanism), and coupling reaction of amines and urazoles. The results showed that the oxidized form of urazole is unstable, especially when electron-withdrawing groups are present in the structure, leading to oxidative ring cleavage.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Article
Electrochemistry
Heydar Hameed Salman Arkwazee, Niloofar Mohamadighader, Davood Nematollahi, Arash Rabiee, Hojjat Alizadeh
Summary: This article describes a method for synthesizing new sulfonamide derivatives using electrochemical methods without toxic reagents, and finds that these products have good antibacterial performance against bacteria.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Electrochemistry
Niloofar Mohamadighader, Davood Nematollahi, Mahnaz Saraei
Summary: Electrochemical oxidation of phenothiazine in an acetonitrile/water mixture was investigated, revealing that the oxidation pathway varies with respect to pH. The results led to the synthesis of two new types of PTZ dimer and provided insights into the oxidation mechanism of PTZ.
ELECTROCHIMICA ACTA
(2022)
Article
Chemistry, Multidisciplinary
Razzagh Rahimpoor, Ali Firoozichahak, Saber Alizadeh, Houman Serkan, Davood Nematollahi
Summary: This paper synthesized an aluminum-based metal-organic framework and utilized it in high-performance liquid chromatography for the reliable determination of cyclophosphamide in urine samples. By optimizing various parameters, satisfactory measurement results and recovery rates were obtained.
Article
Electrochemistry
Mohammad Reza Talebi, Davood Nematollahi, Ahmad Reza Massah
Summary: The electrochemical oxidation of N-(4-aminophenyl) and N-(4-hydroxyphenyl)benzenesulfonamide derivatives was investigated at different pH values and concentrations. The oxidation potential and mechanism of these compounds were found to be pH dependent. The oxidation products were found to undergo hydroxylation and/or dimerization reactions. The adsorption behavior and oxidation products under conditions similar to the human body were also studied.
ELECTROCHIMICA ACTA
(2023)
Article
Electrochemistry
Faezeh Zivari-Moshfegh, Fereshteh Javanmardi, Davood Nematollahi
Summary: The electrochemical behavior of rifampicin, an anti-tuberculosis drug, was studied in a water/ethanol mixture. The drug was found to undergo two-step oxidation, with the first step being a reversible oxidation of the hydroquinone moiety and the second step being an irreversible oxidation of the phenolic ring. The adsorption activity and diffusion coefficient of rifampicin were also determined, indicating that the first oxidation step is diffusion-controlled and the second step is a diffusion/adsorption control process. The oxidation of rifampicin was found to be complex and highly pH-dependent, with different rates of reaction observed for different drugs used in combination therapy.
ELECTROCHIMICA ACTA
(2023)
Article
Electrochemistry
Faezeh Zivari-Moshfegh, Davood Nematollahi
Summary: This study investigates the toxic metabolites formed from the oxidation of rifampicin and acetaminophen in the body. It provides strong evidence of a catalytic reaction between vitamin C and the oxidized form of rifampicin. Additionally, contrary to previous reports, this study discovers another catalytic reaction between oxidized acetaminophen and rifampicin.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2023)
Article
Electrochemistry
Zahra Godini, Davood Nematollahi, Faezeh Zivari-Moshfegh
Summary: In this study, the electrochemical complexation of five azole antifungal drugs with silver, copper and zinc cations was conducted in an undivided electrolytic cell. Twenty complexes were synthesized using a simple method in water/ethanol mixtures with high yield and purity. The applied current and acid concentration were found to have no significant effects on the yield and purity of the complexes, but they did affect the cell voltage and energy consumption.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2023)
Article
Multidisciplinary Sciences
Pouria Patoghi, Ali Sadatnabi, Davood Nematollahi
Summary: In this study, a new convergent paired electro-organic synthesis method for sulfonamide derivatives was introduced, which follows the principles of green chemistry and does not require catalysts, oxidants, halogens, or amines. Instead of using toxic amine compounds, an innovative mechanism based on the reduction of nitro compounds and in-situ production of amine compounds was used. The mechanism involves cathodic reduction of nitro compounds to hydroxylamine compounds and anodic oxidation of hydroxylamine compounds to nitroso compounds.
SCIENTIFIC REPORTS
(2023)
Article
Chemistry, Analytical
Nasim Shamsvand, Fahimeh Varmaghani, Babak Karimi, Hamzeh Hassanaki
Summary: The role of nitrogen functional groups in nitrogen-doped ordered mesoporous carbons (OMCs) was investigated using two home-made ionic liquid-derived OMCs with different nitrogen concentrations. It was found that the nitrogen content had a significant impact on the loading of electroactive species on the OMCs.