Article
Chemistry, Multidisciplinary
Hossein Tavakol, Mahdieh Firouzi
Summary: In this project, Sn(II)/nano silica was prepared by depositing SnCl2.2.H2O on nano-silica. The prepared catalyst was used as a green and reusable catalyst for the synthesis of 14H-dibenzoxanthenes through a one-pot condensation reaction. Several xanthene derivatives were successfully synthesized with high yields. The structures of the synthesized derivatives were confirmed using various analytical techniques.
FRONTIERS IN CHEMISTRY
(2022)
Article
Chemistry, Physical
Sandeep T. Atkore, Giribala M. Bondle, Pranita V. Raithak, Vinod T. Kamble, Ravi Varala, Mufsir Kuniyil, Mohammad Rafe Hatshan, Baji Shaik, Syed Farooq Adil, Mohammed Althaf Hussain
Summary: The synthesis of 14-aryl 14H-dibenzo[a,j]xanthenes was achieved through a simple condensation reaction using a synergistic catalytic system of basic bleaching earth clay and PEG-600. This method offers advantages such as catalyst recyclability, high product yield, short reaction time, and avoidance of hazardous reagents. The synthesized xanthene derivatives were also tested for their antibacterial activity against Staphylococcus aureus and Pseudomonas aeruginosa.
Article
Chemistry, Analytical
Zhuo Yu, Wenbo Huang, Shengzhen Xu, Shaoyong Ke
Summary: Two novel benzothiazole-naphthol aldehyde conjugates were synthesized and tested for their recognition properties for diverse analytes. One compound showed high selectivity and specificity for recognizing hypochlorite, while another compound did not respond significantly to any analytes. The sensor could sensitively detect hypochlorite with a low detection limit and was successfully applied in test strips.
MICROCHEMICAL JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
Maryam Mansouri, Davood Habibi, Somayyeh Heydari
Summary: A novel nano-magnetic-supported phenyltetrazolethiol-based Ni complex was synthesized and characterized, then used as a heterogeneous nano-catalyst for the synthesis of two sets of compounds under solvent-free conditions at an appropriate temperature and time.
RESEARCH ON CHEMICAL INTERMEDIATES
(2022)
Article
Thermodynamics
Viatcheslav I. Tsirelnikov, Lidia M. Bazhanova, Boris V. Lokshin
Summary: This article presents the thermodynamic functions of crystalline and gaseous niobium chlorides in lower oxidation states. Through experimental measurements and calculations, the thermodynamic properties of solid niobium chlorides and their clusters, as well as the gaseous lower niobium chlorides, were determined. The obtained data allowed for the calculation of vapor phase composition under specific conditions and the determination of the thermal decomposition mechanism of a niobium cluster.
THERMOCHIMICA ACTA
(2022)
Article
Chemistry, Organic
Mohinuddin Khan Imon, Readul Islam, Pran G. Karmaker, Pijush K. Roy, Kee-In Lee, Harendra N. Roy
Summary: A green and efficient method for synthesizing biologically active xanthene derivatives has been developed using a three-component reaction mediated by 2-aminophenol. The method offers advantages such as short reaction time, easy product isolation, non-toxic catalyst, and metal-free process.
SYNTHETIC COMMUNICATIONS
(2022)
Article
Chemistry, Organic
Alexandria Uritis, Hannah Phillips, Hunter Phillips, Thomas C. Coombs
Summary: beta-Aryl-substituted alpha,beta-epoxysulfones can undergo House-Meinwald rearrangement to form alpha-aryl, alpha-sulfonyl aldehydes in high yields when dissolved in hexafluoroisopropanol (HFIP), and in some cases, upon heating. Furthermore, a one-pot rearrangement/reductive amination sequence has been reported to transform phenyl-substituted epoxysulfones into the corresponding beta-aminosulfones.
TETRAHEDRON LETTERS
(2023)
Article
Chemistry, Applied
E. Murugan, P. Arunachalam
Summary: New soluble and insoluble complex catalysts have been developed for the acylation of ethanol with acetic anhydride. The insoluble catalysts outperformed the soluble catalysts in terms of activity, but have limitations in solubility and recyclability.
INDIAN JOURNAL OF CHEMICAL TECHNOLOGY
(2022)
Article
Chemistry, Organic
Sushree Ranjan Sahoo, Vinod K. Singh
Summary: Here, we report an enantioselective Bronsted acid catalyzed addition of naphthols to in situ generated naphthol-derived ortho-quinone methides (o-QMs) followed by intramolecular cyclization, which provides a one-pot synthesis of substituted chiral xanthene derivatives under mild conditions. The use of chiral phosphoric acid (CPA) catalyst allows for the conversion of naphthol-derived ortho-hydroxyl benzylic alcohols into reactive naphthol-derived o-QMs, enabling control over the enantioselectivity of the carbon-carbon bond-forming event via hydrogen-bonding and intramolecular cyclization. Additionally, we demonstrate a Bronsted acid catalyzed C(sp2)-C(sp3) bond cleavage of naphthol-derived ortho-hydroxyl benzylic alcohols for the first time, providing a synthetic route to achiral xanthene derivatives in good to excellent yields.
JOURNAL OF ORGANIC CHEMISTRY
(2023)
Article
Chemistry, Organic
Abdolharaid Bamonir, Reza Delqavi Khalifa Lou, Nahid Yaghmaeiyan
Summary: 9,9-Dimethyl-12-(aryl)-8,9,10,12-tetrahydrobenzo[a]xanthene-11-one derivatives have been synthesized via a green three-component reaction using nano-kaolin-SO3H as a recoverable solid catalyst. The solid acid catalyst, which possesses the properties of both Lewis and Bronsted acids, has been characterized by various techniques. Compared to conventional methods, this protocol offers advantages such as simple experimental procedure, easy work-up, shorter reaction times, and high yields of pure products.
INDIAN JOURNAL OF CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Stefano Paganelli, Riccardo Tassini, Oreste Piccolo
Summary: This paper focuses on the synthesis of important aromatic aldehydes using hydrogen donors and recyclable phosphine free low metal content catalysts, which can be used in industrial flavor/fragrances, API preparation, and other fragrances.
Article
Biochemical Research Methods
Zhiping Che, Song Zhang, Jiaxuan He, Di Sun, Xiaolong Guo, Yuanhao Li, Lina Zhu, Yihao Guo, Yibo Liu, Yuee Tian, Xiaobo Huang, Shengming Liu, Genqiang Chen
Summary: By synthesizing and evaluating a series of sulfonate derivatives of alpha/beta-naphthol, two compounds 4a and 5a were found to have good antimicrobial activity against P. capsici. It was observed that the aliphatic substituent R is crucial for maintaining the anti-oomycete activity of these derivatives.
COMBINATORIAL CHEMISTRY & HIGH THROUGHPUT SCREENING
(2022)
Article
Chemistry, Inorganic & Nuclear
Maryam Mehravar, Bi Bi Fatameh Mirjalili, Elaheh Babaei, Abdolhamid Bamoniri
Summary: A new green protocol utilizing nano-AlPO4/Ti(IV) as a catalyst has been developed for the synthesis of tetrahydrobenzo[a]xanthen-11-ones under solvent-free conditions at 90 degrees C. The protocol offers advantages such as short reaction times, high yields, and easy work-up. Characterization of the catalyst and products was carried out using various analytical techniques.
INORGANIC AND NANO-METAL CHEMISTRY
(2022)
Article
Chemistry, Physical
Sakshi Bhatt, Sandhya Saini, B. Moses Abraham, Anil Malik, Suman L. Jain
Summary: This work presents an efficient photoredox-mediated synthesis of α-hydroxy acids via the reductive carboxylation of aryl aldehydes with CO2 using heterostructures made up of titanium-based MOF (MIL-125-NH2) and g-C3N4 under visible light. The developed protocol exhibited good reactivity for aryl aldehydes with electron-donating substituents, yielding moderate to high yields of the desired carboxylated products. However, substrates with electron-withdrawing groups showed low efficiency in this transformation. The developed methodology offers advantages such as CO2 utilization at room temperature, high product selectivity, and a stable and recyclable photocatalyst. Blank experiments confirmed the truly photocatalytic nature of the reaction with light irradiation playing a crucial role.
JOURNAL OF CATALYSIS
(2023)
Article
Engineering, Environmental
Haiyang Fan, Guiyun Yi, Zhengting Zhang, Xiuxiu Zhang, Peng Li, Chuanxiang Zhang, Lunjian Chen, Yulong Zhang, Qi Sun
Summary: In this study, an Ag deposited BiVO4 (ABVO) electrode was successfully fabricated via a combination of electrodeposition and photodeposition for efficient photoelectrocatalytic degradation of 13-naphthol under visible-light illumination. The ABVO photoanode exhibited a 1.6 times higher photocurrent density than BiVO4 (BVO) due to reduced recombination rate of photoinduced electron-hole pairs. The enhanced performance of ABVO can be attributed to the synergy of photocatalysis, electrocatalysis, and the localized surface plasmon resonance effect of deposited Ag particles.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Biochemical Research Methods
Mahnaz Ghereghlou, Abbas Ali Esmaeili, Majid Darroudi
Summary: This study introduces a novel method for synthesizing carbon dots using Elaeagnus angustifolia as a natural carbon source and evaluates its application in detecting the food colorant tartrazine. The method shows high sensitivity and selectivity, making it effective for distinguishing tartrazine in real samples.
JOURNAL OF FLUORESCENCE
(2021)
Article
Biochemistry & Molecular Biology
Tooba Tabibi, Abbas Ali Esmaeili, Joel T. Mague
Summary: A convenient and efficient method for the synthesis of 7-benzoyl-6-(aryl)-6,7-dihydro-5H-furo[2,3-d]thiazolo[3,2-a]pyrimidin-5-one derivatives was achieved via a one-pot three-component diastereoselective domino reaction. The advantages of this protocol include easily available starting materials, operational simplicity, and avoidance of hazardous organic solvents and catalyst. The synthesized products were characterized by various spectroscopic techniques and the conclusive structure was confirmed through X-Ray diffraction analysis.
MOLECULAR DIVERSITY
(2022)
Article
Chemistry, Multidisciplinary
Abbas Ali Esmaeili, Fariba Mesbah, Mandieh Zangouei, Saeid Amini-Ghalandarabad, Masoud Tasmimi, Azizollah Habibi, Ali Reza Fakhari, Amir Khojastehnezhad
Summary: An efficient and rapid method has been developed for the synthesis of a novel type of pyrano[2,3-d][1,3]thiazolo[3,2-a]pyrimidine derivatives through a three-component condensation reaction, with isolated yields of 90-94% achieved in short reaction times (5-10 min).
RESEARCH ON CHEMICAL INTERMEDIATES
(2021)
Article
Chemistry, Applied
Mahnaz Ghereghlou, Abbas Ali Esmaeili, Majid Darroudi
Summary: This work presents a novel and simple procedure for synthesizing formamidines using Fe3O4@C-dots as an effective and reusable catalyst in a solvent-free setup. The formamidine derivatives showed good to high yield values in the presence of Fe3O4@C-dots. The prepared catalyst was characterized using various techniques, and it was found to be nonacidic and reusable for at least five cycles.
APPLIED ORGANOMETALLIC CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Saedehsadat Hosseini, Abbas Ali Esmaeili, Amir Khojastehnezhad, Behrouz Notash
Summary: In this research, novel derivatives of 6'-amino-2,9'-dioxo-2'-phenyl-9'H-spiro[indoline-3,8'-pyrano[2,3-d][1,3,4]thiadiazolo[3,2-a]pyrimidine]-7'-carbonitriles were synthesized via a one-pot three-component condensation reaction. The synthesized products were characterized by various spectroscopic techniques, with one product having its structure confirmed by single-crystal X-ray diffraction.
JOURNAL OF SULFUR CHEMISTRY
(2021)
Article
Biochemistry & Molecular Biology
Maryam Danehchin, Abbas Ali Esmaeili
Summary: The study utilized 2-Arylbenzimidazoline as biomimetic reductive agents for reductive alkylation of 2-hydroxy-4H-benzo[4,5]thiazolo[3,2-a]pyrimidin-4-one to synthesize novel 3-benzyl-2-hydroxy-4H-benzo[4,5]thiazolo[3,2-a]pyrimidin-4-ones. The protocol exhibited simplicity, high yield, and easy work up, with molecular structures characterized by various spectroscopic techniques.
MOLECULAR DIVERSITY
(2022)
Article
Chemistry, Inorganic & Nuclear
Maryam Sarchahi, Abbas Ali Esmaeili
Summary: A catalyst and solvent-free synthesis method for imidazo[2,1-b][1,3,4]thiadiazole derivatives containing trifluoromethyl (CF3) group was reported, achieved through a three-component reaction. This green reaction is characterized by operational simplicity and good-to-excellent yields of products. Product structures were determined through various analytical techniques like H-1 NMR, C-13 NMR, FT-IR, mass spectrometry, and elemental analysis.
PHOSPHORUS SULFUR AND SILICON AND THE RELATED ELEMENTS
(2021)
Article
Chemistry, Organic
Samaneh Ghaffari, Abbas Ali Esmaeili, Amir Khojastehnezhad
ORGANIC PREPARATIONS AND PROCEDURES INTERNATIONAL
(2021)
Article
Chemistry, Organic
Maryam Khalili, Abbas Ali Esmaeili, Amir Khojastehnezhad
ORGANIC PREPARATIONS AND PROCEDURES INTERNATIONAL
(2022)
Article
Chemistry, Multidisciplinary
Maryam Danehchin, Abbas Ali Esmaeili
Summary: A novel series of chromenopyrido[3,2-e]isothiazolo[2,3-a]pyrimidines were synthesized through a three-component reaction under catalyst-free conditions in a green solvent. The obtained products were characterized by various techniques and showed advantages of high yields, short reaction times, and environmentally friendly reaction conditions.
RESEARCH ON CHEMICAL INTERMEDIATES
(2022)
Article
Chemistry, Multidisciplinary
Mahnaz Ghereghlou, Abbas Ali Esmaeili, Majid Darroudi
Summary: Fe3O4@C-dots prepared from Elaeagnus Angustifolia showed a significantly higher adsorption capacity for methylene blue compared to other reported results. The adsorption capacity of Fe3O4@C-dots increased with contact time, pH, and MB initial concentration. The adsorption mechanism involved electrostatic interactions, hydrogen bonding, and chemical binding. The kinetic studies showed that the adsorption followed pseudo-second-order kinetics, and the isotherm analysis indicated consistency with the Langmuir equations. The adsorption capacity of Fe3O4@C-dots remained stable after multiple regeneration cycles. This adsorbent has a high potential for clearing cationic dyes from wastewater.
SEPARATION SCIENCE AND TECHNOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Tooba Tabibi, Abbas Ali Esmaeili
Summary: In this study, a catalyst-free, one-pot three-component reaction was developed to synthesize hexahydro-5H-thiazolo[2',3':2,3]pyrimido[4,5-b]quinoline using ethylene glycol as a green solvent at 100 degrees C. The protocol offers significant advantages including catalyst-free conditions, the use of a green solvent, simple procedure, mild reaction conditions, easy work-up procedure, and good to excellent yields.
MOLECULAR DIVERSITY
(2023)
Article
Chemistry, Organic
Abbas Ali Esmaeili, Fahimeh Feizpour, Mahnaz Ghereghlou, Azizollah Habibi
Summary: An efficient and green method for the synthesis of novel 2-pyrrolidinone analogs has been described. The reaction, which involves various primary amines, alkyl acetoacetates, and maleic anhydride, is carried out under solvent-free conditions at room temperature, resulting in good to high yields. The synthesized products are characterized using various spectroscopic methods. This protocol offers several advantages, including mild reaction conditions, catalyst-free conditions, economic feasibility, environmental-friendliness, short reaction times, high yields, and simple workup.
POLYCYCLIC AROMATIC COMPOUNDS
(2023)
Article
Chemistry, Multidisciplinary
Elham Mahdavi, Abbas Ali Esmaeili
Summary: A novel four-fused ring heterocyclic system was synthesized via a three-component reaction using [1,3,4]thiadiazolo[3,2-a]pyrimidin-5-one, aromatic aldehyde, and 1,3-cyclohexanediones in the presence of 1-(4-sulfonic acid)butyl-3-methylimidazolium hydrogen sulfate. The synthesized compounds were characterized and confirmed by various analytical techniques. This method offers the advantages of using an acidic ionic liquid catalyst, green solvents, short reaction time, high yields, and simple purification techniques.
RESEARCH ON CHEMICAL INTERMEDIATES
(2023)
Article
Engineering, Electrical & Electronic
Farhad Asadollah Zarif, Abbas Ali Esmaeili, Zohre Zeraatkar, Marzieh Behrouz, Zahra Dehghani, Luis A. A. Miccio, Soheil Sharifi
Summary: The Z-scan instrument was used to study the NLO properties of different substitutions including bromine, methyl, and phenyl groups in the derivatives of 3,3'-biindole 2,2'(1H,1'H)-dione. The research focused on the nonlinear absorption coefficient, beta, nonlinear refraction index, n2, reverse saturation absorption, and selfdefocusing phenomena. The presence of bromine was found to reduce the NLO properties, which was confirmed by quantum calculation indicating a reduction in dipole moment. The NLO properties of the biindole derivatives are related to the thermo-optic coefficient and dipole moment, making them promising candidates for NLO absorption materials.
OPTICAL AND QUANTUM ELECTRONICS
(2023)
