Article
Chemistry, Analytical
Deivasigamani Ranjith Kumar, Ganesh Dhakal, P. Muhammed Shafi, Mostafa Saad Sayed, Jintae Lee, Yong Rok Lee, Jae-Jin Shim
Summary: In this study, a reagentless selective sodium sulfite food-additive sensor was successfully developed using Au nanoparticles and a chemical/electrochemical approach. The composite electrode exhibited a wide linear range of detection and high sensitivity and detection limit. The sensor showed good recovery when applied to food samples.
MICROCHEMICAL JOURNAL
(2022)
Article
Engineering, Environmental
Xiaolu Fu, Yanhe Han, Han Xu, Zhimin Su, Lina Liu
Summary: A novel Ti/SnO2-Sb/PbO2-GO-Ce electrode was fabricated for efficient electrocatalytic oxidation of phenol, showing improved phenol removal efficiency under optimized experimental parameters. The electrode exhibited stable and admirable reusability after 10 successive recycles, confirming its high potential for practical applications.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Food Science & Technology
Jingyuan Liu, Mahesha M. Poojary, Mikkel B. Thygesen, Mogens L. Andersen, Marianne N. Lund
Summary: Quinones are electrophilic compounds that react with nucleophilic amines such as lysine. This study investigated the effect of temperature on the reaction between 4-methylbenzoquinone and lysine derivatives. The products were identified using LC-MS/MS, and the reaction kinetics were studied using stopped-flow UV-vis spectrophotometry. The results showed that temperature did not significantly affect the product formation, and the reaction rates followed the Arrhenius law with different activation energies for different lysine derivatives.
FOOD RESEARCH INTERNATIONAL
(2023)
Article
Chemistry, Applied
Mohd Asraf Mohd Zainudin, Sisse Jongberg, Marianne N. Lund
Summary: The study found that the formation of cysteine-4-methylcatechol adduct increased in meat added with 4-methylcatechol under light exposure, leading to a significant decrease in thiol concentrations. Additionally, samples added with 4MC showed loss of myosin heavy chain and an increase in larger protein polymers.
Article
Polymer Science
Udit Acharya, Patrycja Bober, Muhammed Arshad Thottappali, Zuzana Moravkova, Magdalena Konefal, Jiri Pfleger
Summary: The research investigated the preparation and characteristics of PPDA/MMT composites, revealing different polymers or oligomers produced during polymerization at different ratios of monomers and MMT. The DC conductivity of the composites was significantly higher than that of the pristine polymer, reaching the highest value at the optimal MMT amount used during polymerization.
Article
Chemistry, Organic
Sanjay Singh, Ravi Saini, Ravi P. Singh
Summary: An unprecedented organocatalyzed asymmetric vinylogous Michael reaction with excellent enantiomeric ratio and yield has been reported. The remarkable selectivity is attributed to the hydrogen bonding ability of the catalyst. The reaction is versatile and practical for the synthesis of various gamma-functionalized coumarin derivatives.
JOURNAL OF ORGANIC CHEMISTRY
(2022)
Article
Chemistry, Applied
Jin-Lin Wan, Jing-Mei Huang
Summary: An electrochemical oxidative approach for the synthesis of spirooxazolidinones from phenol derivatives via intramolecular dearomative amination reactions is developed. This reaction does not require the use of metal catalysts or external chemical oxidants, and exhibits a broad substrate scope and compatibility with diverse functional groups. The synthetic utility of this strategy is demonstrated through gram-scale synthesis and late-stage functionalization. Additionally, the reaction conditions can be adjusted to produce alcohols (1˚, 2˚, and 3˚) from phenol derivatives, offering a useful strategy for deprotecting the para-methoxyphenyl (PMP) group and recovering the alcohol functionality.
ADVANCED SYNTHESIS & CATALYSIS
(2023)
Article
Acoustics
Pravin B. Patil, Vinay M. Bhandari, Vivek V. Ranade
Summary: This study demonstrated significant improvements in the removal of ammoniacal nitrogen from wastewater using a hydrodynamic cavitation technology. The evaluation of reactor geometries and the effects of initial concentration, pressure drop, cavitating device nature, salt content, hydrogen peroxide addition and aeration were conducted. The study found that initial concentration and aeration had a significant impact on the efficiency of ammoniacal nitrogen removal.
ULTRASONICS SONOCHEMISTRY
(2021)
Article
Chemistry, Organic
Zhong-Wei Hou, Ming-Ming Zhang, Wen-Chao Yang, Lei Wang
Summary: This article describes a novel electrochemical method for the site-selective benzylic C(sp(3))-H oxidation of phenol derivatives, accompanied by the evolution of hydrogen. The protocol can be carried out in an undivided cell at room temperature without the need for catalysts or oxidizing reagents. The corresponding aryl aldehydes and ketones are obtained in satisfactory yields, making gram-scale synthesis easily achievable.
JOURNAL OF ORGANIC CHEMISTRY
(2022)
Article
Chemistry, Physical
Wanyi Liao, Qin Zhao, Shanshan Wang, Yiling Ran, Hong Su, Rong Gan, Shun Lu, Yan Zhang
Summary: The high energy consumption in water electrolysis systems is attributed to the slow kinetics of the oxygen evolution reaction (OER). Substituting thermodynamically advantageous small molecule oxidation reactions for OER can significantly improve energy conversion efficiency. Studying the in-depth reaction mechanism of complex substrates is necessary due to their elemental composition. This review focuses on the electrooxidation mechanism of different substrate molecules, such as ethanol, urea, and hydrazine, and introduces design ideas and strategies for high-performance electrocatalysts in relation to reaction path selectivity. The challenges in achieving industrial transformation in this field are also discussed.
JOURNAL OF CATALYSIS
(2023)
Article
Biotechnology & Applied Microbiology
Federica Proietto, Abdo Khalil, Wissam Maouch, Alessandro Galia, Onofrio Scialdone
Summary: Soil degradation is a global concern, and electrochemical remediation technology is considered a low-cost, adaptable, and effective strategy for soil remediation. However, the remediation of fine-grained, low-permeability, heterogeneous soil with mixtures of contaminants remains challenging, as conventional technologies are often ineffective.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2023)
Article
Chemistry, Physical
Sakina Bahoussi, Imane Moulefera, Abdelkader Belmokhtar, Abdelghani Benyoucef
Summary: Hybrid materials poly(pPD)@Mt-Ni and poly(pPD)@Mt-Zn were designed and fabricated through in-situ intercalative polymerization method. Structural properties were characterized using various techniques, confirming the formation of hybrid architecture. Poly(pPD)@Mt-Ni showed promising potential for photocatalytic applications compared to poly(pPD)@Mt-Zn.
JOURNAL OF MOLECULAR STRUCTURE
(2021)
Article
Chemistry, Multidisciplinary
Jisheng Luo, Yu Deng, Tianran Deng, Li Deng
Summary: This study reports an unprecedented enantioconvergent fluorodesilylation method for the transformation of racemic organosilanes bearing different substituents. The results demonstrate that fluorodesilylation could be a common strategy for the development of catalytic asymmetric reactions of racemic organosilanes.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Multidisciplinary
Francesco Vaghi, Giorgio Facchetti, Isabella Rimoldi, Matteo Bottiglieri, Alessandro Contini, Maria Luisa Gelmi, Raffaella Bucci
Summary: Multiple studies have shown that the pyrrolidine nucleus is more efficient as organocatalysts for the condensation of aldehydes with electrophiles via enamine, compared to piperidine or morpholine. The low reactivity of morpholine-enamines is due to the presence of oxygen on the ring and the pyramidalisation of nitrogen, which decreases the nucleophilicity of the enamine. Therefore, finding efficient morpholine organocatalysts is a challenging task.
FRONTIERS IN CHEMISTRY
(2023)
Article
Chemistry, Physical
Jingjing Qiu, Daniel Boskin, Dallas Oleson, Weiming Wu, Marc Anderson
Summary: Plasmon-mediated electrocatalysis, based on plasmonic gold nanoparticles (Au NPs), provides a promising approach to enhance electrochemical reactions by introducing light for plasmonic excitation. Among the metals investigated in alkaline electrolytes, gold (Au) exhibits the lowest onset potential for catalyzing the electrooxidation of 4-(hydroxymethyl)benzoic acid (4-HMBA), while platinum (Pt) fails to catalyze the electrooxidation of 4-HMBA under alkaline conditions. High-performance liquid chromatography analysis confirms the presence of 4-carboxybenzaldehyde and terephthalic acid as products of the electrochemical oxidation of 4-HMBA on the Au working electrode.
JOURNAL OF CHEMICAL PHYSICS
(2022)
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
Electrochemistry
Niloofar Mohamadighader, Davood Nematollahi, Mahnaz Saraei
Summary: The electrochemical oxidation of propofol in a water/acetonitrile mixture was studied, revealing a chemically irreversible oxidation process to form propofol dimer. The electrochemical synthesis of PDQ was successfully achieved with the catalytic effect of sulfite ions. This method provides a greener alternative for dimerization of propofol under mild conditions.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(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
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)
Review
Chemistry, Multidisciplinary
Mahdi Jamshidi, Ameneh Amani, Sadegh Khazalpour, Sara Torabi, Davood Nematollahi
Summary: Organic electrochemistry is a modern and efficient field that utilizes eco-friendly and sustainable electrochemical methods for functionalizing organic compounds. This review focuses on the synthesis of organosulfone and sulfonamide derivatives using electrochemical reduction and oxidation techniques, highlighting the mechanisms, parameters, cells, and yields involved in the process.
NEW JOURNAL OF CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Zahra Tavakkoli, Hamed Goljani, Hassan Sepehrmansourie, Davood Nematollahi, Mohammad Ali Zolfigol
Summary: This study investigated the electrochemical reduction of different aryldiazonium salts in aqueous solution, showing that the process occurs in two single-electron steps. The presence of different substituents on the phenyl ring affects the adsorption characteristics and ease of reduction of the corresponding diazonium salts, with electron withdrawing substituents making the reduction process easier.