Article
Chemistry, Multidisciplinary
Pegah Mahdipour, Leila Moradi, Mahdi Mirzaie
Summary: Sulfonic acid functionalized silica coated cobalt ferrite nanoparticles were prepared as an efficient solid acid catalyst for the green synthesis of dihydropyrimido[4,5-b]quinolinetrione derivatives. The magnetically separable catalyst showed excellent performance under thermal and ultrasound conditions, enabling fast reaction and high yield under green reaction conditions.
Article
Environmental Sciences
Mohiedin Boroujerdian, Saeed Rahimi, Shefa Mirani Nezhad, Seied Ali Pourmousavi, Ehsan Nazarzadeh Zare, Fatemeh Salimi, Fatemeh Amirahmadi, Hossein Daneshgar
Summary: In this research, a magnetic nano-composite based on MOF-5 was prepared and investigated as a catalyst. The resulting catalyst showed excellent performance in synthesizing quinazoline derivatives with high yields and short reaction times. It also exhibited good recyclability.
ENVIRONMENTAL RESEARCH
(2023)
Article
Chemistry, Physical
Asmaa Aboelnaga, Sahar Soror, Ekhlass Nassar, Samia Elabbady, Asmaa M. Fahim
Summary: This study achieved the eco-friendly synthesis of novel bis heterocyclic compounds containing pyridine derivatives using green tools such as ultrasonication energy. The synthesized compounds were analyzed using spectroscopy and evaluated for their antitumor activity, showing promising results against breast and carcinoma cell lines. Molecular docking simulation and theoretical calculations further confirmed the experimental findings.
JOURNAL OF MOLECULAR STRUCTURE
(2023)
Article
Materials Science, Multidisciplinary
Tian Wang, Thiquynhxuan Le, A. Ravindra, Hu Jue, Libo Zhang, Shixing Wang
Summary: An effective method involving sulfuric acid immersion and ultrasonically assisted acid leaching is proposed to efficiently remove harmful metals from spent FCC catalysts while maintaining their microstructure integrity. Experimental results demonstrate that this method not only restores pore structure and increases specific surface area, but also achieves high removal rates of harmful metals with reduced processing time compared to conventional methods.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Chemistry, Physical
Masoumeh Ahmadi, Leila Moradi, Masoud Sadeghzadeh
Summary: The green synthesis of benzochromenopyrimidine derivatives catalyzed by supported meglumine sulfonic acid on multiwalled carbon nanotube surfaces provides a recyclable and soft strategy for solvent-free synthesis under microwave irradiation. The method is safe, eco-friendly, and convenient, offering high to excellent yields using a new efficient solid acid catalyst.
JOURNAL OF MOLECULAR STRUCTURE
(2021)
Article
Chemistry, Inorganic & Nuclear
Mahmood Subhi Jameel, Azlan Abdul Aziz, Mohammed Ali Dheyab
Summary: Platinum nanoparticles (Pt NPs) were synthesized in various solvents using sonochemistry, showing different sizes and surface charges according to the solvent's physical properties. The study highlighted the importance of solvent type in modulating the physicochemical properties of Pt NPs.
INORGANIC CHEMISTRY COMMUNICATIONS
(2021)
Article
Chemistry, Multidisciplinary
Pranav P. Bardapurkar, Sunil S. Shewale, Sandeep A. Arote, Shreyas S. Pansambal, Nilesh P. Barde
Summary: The study demonstrates that the properties of cobalt ferrite nanoparticles dispersed in silica are influenced by precursor pH, with an increase in pH resulting in an increase in crystallite size. Additionally, precursor pH also affects lattice parameter, particle size distribution, and catalytic properties.
RESEARCH ON CHEMICAL INTERMEDIATES
(2021)
Article
Chemistry, Physical
Zhongmiao Chen, Wei Chen, Lei Zhang, Wenqian Fu, Guoren Cai, Anmin Zheng, Tiandi Tang
Summary: The acidic mesoporous ZSM-5 assembled palladium (Pd/ZSM-5-H) can efficiently convert primary amides to nitriles without the need for any additives, offering excellent applicability. The highly dispersive Pd(II) species grafted on ZSM-5-H via strong binding interaction drive significantly higher reaction activity compared to other catalysts. The active centers of Pd/ZSM-5-H were attributed to [PdOH]+, which catalyzes the conversion of primary amides to nitriles with high thermodynamic and kinetic favorability.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Chemistry, Multidisciplinary
Giovanna Bosica, Ryan Saliba
Summary: In recent years, much attention has been paid to the development of new protocols in organic synthesis using non-toxic, low cost, eco-friendly, recyclable catalyst systems that can provide high productivity under mild reaction conditions. A collection of structurally diverse beta-amino carbonyl compounds were successfully synthesized using silica-supported polyphosphoric acid as a catalyst under solventless conditions, exhibiting ease of preparation and long-term stability in storage.
Article
Chemistry, Multidisciplinary
H. Rostami, L. Shiri
Summary: A novel and atom-economic protocol was developed for the synthesis of thiazole-2-imine derivatives using a magnetic nanocatalyst, CoFe2O4@SiO2-PA-CC-Guanidine-SA, which resulted in excellent yields from primary amines, phenyl isothiocyanate and phenacyl bromide derivatives; the nanocatalyst can be easily separated from the reaction mixture and reused multiple times. The catalyst characterization was carried out using various techniques including FT-IR, SEM, EDX, XRD, TGA, and VSM.
MATERIALS TODAY CHEMISTRY
(2021)
Article
Energy & Fuels
Shucui Han, Jinbei Yang, Hui Huang
Summary: Two double-site acidic ionic liquids were synthesized and one of them showed excellent catalytic performance and recyclability in esterification reactions. Under optimized conditions, this ionic liquid achieved a conversion rate of 98.65% for oleic acid and maintained high catalytic activity for 9 cycles.
Article
Chemistry, Multidisciplinary
Mohammad Nikpassand, Leila Zare Fekri, Rajender S. Varma, Lida Hassanzadi, Farhad Sedighi Pashaki
Summary: The synthesized magnetic nanoparticles offer an environmentally friendly approach for the efficient synthesis of novel 5-amino-pyrazole-4-carbonitriles through a three-component mechanochemical reaction, demonstrating high yields and recyclability.
Article
Chemistry, Physical
Linh Ho Thuy Nguyen, Trang Thi Thu Nguyen, Minh-Huy Dinh Dang, Phuong Hoang Tran, Tan Le Hoang Doan
Summary: The use of green chemistry and alternative strategies for preparing diverse organic derivatives is being explored. The efficient synthesis and characterization of a defective 6-connected Hf-MOF, named Hf-BTC, for heterogeneous catalysis under microwave irradiation has been demonstrated. The Hf-MOF showed high catalytic efficiency in synthesizing heterocyclic compounds with high yields and excellent recycling capabilities.
MOLECULAR CATALYSIS
(2021)
Article
Chemistry, Physical
Hipassia M. Moura, Herwig Peterlik, Miriam M. Unterlass
Summary: This study presents a one-pot hydrothermal synthesis of inorganic-organic hybrid materials, achieving the concomitant synthesis, nanoscopic interpenetration, and covalent linking of components, leading to synergistic materials properties and improved thermal stability in PBI@SiO2 class II hybrids. The hybrids are utilized as heterogeneous and reusable photoredox catalysts for the reduction of aryl halides, demonstrating good optoelectronic properties. Small-angle X-ray scattering and powder X-ray diffraction revealed the existence of ordered intermediates in the synthesis process, shedding light on the structure formation mechanisms in sol-gel processes.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Article
Chemistry, Applied
Fatemeh Sameri, Mohammad Ali Bodaghifard, Akbar Mobinikhaledi
Summary: In this study, a Zn(II) Schiff base was covalently anchored onto the surface of CaO@SiO2 nanoparticles. The organic-inorganic hybrid nanostructure showed excellent catalytic activity for the green synthesis of 4H-pyran derivatives, with high yields obtained. Additionally, the material exhibited stability and high performance under reaction conditions.
APPLIED ORGANOMETALLIC CHEMISTRY
(2021)
