Article
Chemistry, Organic
Kazem Mohammadiannejad, Reza Ranjbar-Karimi, Farzaneh Haghighat
Summary: A series of new formylated-triarylmethanes (FTRAMs) were successfully synthesized via the Friedel-Crafts reaction of arenes with terephthalaldehyde or isophthalaldehyde in the presence of silica sulfuric acid (SSA) under solvent-free conditions. Subsequently, a series of new azines and hydrazones derivatives of formylated-triarylmethanes were obtained in good yields. The structures of all compounds were confirmed by elemental analysis, IR, H-1 NMR and C-13 NMR spectroscopy.
POLYCYCLIC AROMATIC COMPOUNDS
(2021)
Review
Chemistry, Multidisciplinary
Behnam Gholipour, Salman Shojaei, Sadegh Rostamnia, Mohammad Reza Naimi-Jamal, Dokyoon Kim, Taras Kavetskyy, Nasrin Nouruzi, Ho Won Jang, Rajender S. Varma, Mohammadreza Shokouhimehr
Summary: Research on heterogeneous catalysts, particularly metal-free catalysts, has been intensifying in recent decades. Despite the advantages of heterogeneous transition metal catalysts, challenges such as cost-effectiveness, pollution, and sustainability still exist. The focus now is on scalable design and development of metal-free catalysts that are economically viable and biocompatible for green and selective synthesis in various industries.
Article
Chemistry, Multidisciplinary
Rodabeh Kakavand, Seyyedeh Cobra Azimi, Omid Gholi Jolodar, Farhad Shirini, Hassan Tajik
Summary: In this study, a novel solid acidic reagent was synthesized by modifying nano silica sulfuric acid with morpholine. Characterization of the reagent was conducted using FT-IR, XRD, SEM, TEM, thermogravimetric techniques, and EDX. The reagent showed excellent catalytic activity in the synthesis of triazoloquinazoline derivatives and a variety of polyhydroquinoline derivatives. The reactions resulted in high yields in a short amount of time, and the catalyst could be reused multiple times without significant loss of efficiency.
JOURNAL OF THE IRANIAN CHEMICAL SOCIETY
(2022)
Article
Green & Sustainable Science & Technology
Ruoqing Wang, Feng Shen, Yiwei Tang, Haixin Guo, Richard Lee Smith, Xinhua Qi
Summary: Levulinic acid was produced in high yields (90%) from hemicellulose-derived furfuryl alcohol catalyzed by a dandelion-like, SO3H-modified silica nanoflower solid acid (SiNF-SO3H). The catalyst's porous structure provided abundant catalytic sites for the conversion of furfuryl alcohol, while the mixed-solvent GVL-H2O inhibited undesirable polymerization reactions, resulting in highly selective conversion to levulinic acid. The SiNF-SO3H/(GVL-H2O) catalytic system is both green and sustainable, with potential applications in various acid-catalyzed schemes for lignocellulosic biomass conversion.
Article
Biochemistry & Molecular Biology
Sodeeq Aderotimi Salami, Meloddy Manyeruke, Xavier Siwe-Noundou, Rui Werner Macedo Krause
Summary: The application of immobilized sulfuric acid on silica gel as a solid catalyst in the synthesis of novel alpha-acyloxycarboxamide derivatives via a Passerini reaction was explored. The process showed advantages such as short reaction time, high yields, low cost, and catalyst reusability.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Engineering, Environmental
Mahlet N. Gebresillase, Dae Ho Hong, Jun-Hyeok Lee, Eun-Bum Cho, Jeong Gil Seo
Summary: This study developed an efficient direct solvent-free selective hydrogenation reaction of bio-levulinic acid (LA) to valeric acid (VA) using NixCoyMnzAlw-doped mesoporous silica (NMCAS) catalysts. The catalysts exhibited high conversion of LA and high yield of VA, with Mn and Al dopants improving the selectivity towards VA. The research provides an important example of direct solvent-free, selective, and high-yield production of VA over non-noble heterogeneous catalysts.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Yi-Xing Luo, Wendan Nie, Yiyue Ding, Qilu Yao, Gang Feng, Zhang-Hui Lu
Summary: Hydrogen is promising for future sustainable energy systems due to its cleanliness and renewability, while formic acid is considered an efficient hydrogen supplier because of its high hydrogen content and ease of storage and transport. Researchers have successfully developed Pd-ZrO2/SBA-15-NH2 catalyst for the dehydrogenation of formic acid, achieving 100% hydrogen selectivity at ambient conditions.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Parth Patel, Raj Kumar Tak, Bhavesh Parmar, Shilpa Dabas, Brijesh Patel, Eringathodi Suresh, Noor-ul H. Khan, Saravanan Subramanian
Summary: The study introduces a nitrogen-rich sulfonated carbon catalyst derived from an inexpensive precursor for the synthesis of bioactive vicinal diols. The well-characterized catalyst exhibits wide generality and can be reused for four cycles without loss of activity under mild reaction conditions.
Article
Chemistry, Multidisciplinary
Weisheng Yang, Juan Wang, Liang Jiao, Yang Song, Chang Li, Chaoquan Hu
Summary: This study proposes a feasible and green strategy for the low-cost and environmentally friendly hydrolysis of waste PET, using concentrated p-toluenesulfonic acid (PTSA) as an acid catalyst. The PTSA catalyst can effectively degrade PET into terephthalic acid (TPA) under relatively mild conditions and is recyclable.
Article
Chemistry, Multidisciplinary
Debabrat Pathak, Bikash Kumar Kalita, Ashish Sarmah, Himanshu Sharma, Bidisha Bora, Tridib K. Goswami, Bipul Sarma
Summary: We present a greener synthetic route for the synthesis of medicinally and industrially valuable quinoline scaffolds, eliminating harsh reaction conditions, low productivity, and unstable substrates associated with classical methods. This route involves the acceptorless dehydrogenative annulation of readily available alcohols in basic media using an engineered nitrogen-rich hollow-spherical microporous polymer (MOP-TA) without any metal support. The scalability and green matrices of this affordable and sustainable route are supported by various spectroscopic and microscopic techniques.
Article
Chemistry, Inorganic & Nuclear
Sobhan Rezayati, Fatemeh Kalantari, Ali Ramazani, Sami Sajjadifar, Hamideh Aghahosseini, Aram Rezaei
Summary: An efficient and heterogeneous magnetic nanocatalyst Fe3O4@SiO2@GP/Picolylamine-Cu(II) was synthesized and successfully applied in Biginelli condensation for the preparation of biologically active compounds with high conversions and reusability. The catalyst system exhibited several significant advantages, including convenient and clean reaction conditions, gram-scale synthesis, usage of nontoxic solvent, improved yield, short reaction times, and high durability. Additionally, the nanocatalyst could be recycled by an external magnet for multiple runs with only a slight decrease in product yields.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Applied
Rui Sun, Pengchao Qiao, Zhe Wang, Wei Wang
Summary: This study demonstrates the preparation of monodispersed large-pore mesoporous silica nanoparticles using a sulfuric acid assisted hydrothermal process, enabling precise control over drug loading and release performance with high surface area and large mesopore structures.
MICROPOROUS AND MESOPOROUS MATERIALS
(2021)
Article
Chemistry, Organic
Manabu Hatano, Xue Zhao, Takuya Mochizuki, Kyogo Maeda, Ken Motokura, Kazuaki Ishihara
Summary: The study developed a novel silica-supported ammonium (R)-BINSate catalyst for the enantio- and diastereoselective Friedel-Crafts-type double aminoalkylation, successfully synthesizing chiral C-2-symmetric triamines. The catalyst exhibited high efficiency and recyclability.
ASIAN JOURNAL OF ORGANIC CHEMISTRY
(2021)
Article
Chemistry, Organic
Avishek Ghatak, Amit Pramanik, Asit Kumar Das, Sanjay Bhar
Summary: This study presents an efficient protocol for the solvent-free synthesis of highly substituted propargyl ethers and amines using alumina-sulfuric acid as a recyclable heterogeneous solid acid catalyst. The mild protocol tolerates acid-sensitive moieties and is applicable to a diverse range of alcohols and amines with various substitution patterns. The process is highly atom-efficient, resulting in water as the sole by-product.
Article
Chemistry, Multidisciplinary
Pritam Dolui, Vikas Tiwari, Parul Saini, Tarak Karmakar, Koushik Makhal, Harshita Goel, Anil J. Elias
Summary: An efficient, metal-free, catalyst-free and solvent-free method for the reductive amination of levulinic acid with different anilines has been developed using HBpin as the reducing reagent. This method provides an excellent approach to synthesize different N-substituted pyrrolidones without the need for solvents or added catalysts under metal-free conditions. It is also the first report on the synthesis of different pyrrolidones using solvent-free and catalyst-free methods. The proposed mechanism for pyrrolidone formation has been supported by DFT calculations and control experiments.
CHEMISTRY-A EUROPEAN JOURNAL
(2022)
Article
Chemistry, Organic
Kazem Mohammadiannejad, Reza Ranjbar-Karimi, Farzaneh Haghighat
Summary: A series of new formylated-triarylmethanes (FTRAMs) were successfully synthesized via the Friedel-Crafts reaction of arenes with terephthalaldehyde or isophthalaldehyde in the presence of silica sulfuric acid (SSA) under solvent-free conditions. Subsequently, a series of new azines and hydrazones derivatives of formylated-triarylmethanes were obtained in good yields. The structures of all compounds were confirmed by elemental analysis, IR, H-1 NMR and C-13 NMR spectroscopy.
POLYCYCLIC AROMATIC COMPOUNDS
(2021)
Article
Chemistry, Physical
Mehrnaz Bahadori, Afsaneh Marandi, Shahram Tangestaninejad, Majid Moghadam, Valiollah Mirkhani, Iraj Mohammadpoor-Baltork
JOURNAL OF PHYSICAL CHEMISTRY C
(2020)
Article
Chemistry, Applied
Tahereh Ataee-Kachouei, Mahboobeh Nasr-Esfahani, Iraj Mohammadpoor-Baltork, Valiollah Mirkhani, Majid Moghadam, Shahram Tangestaninejad, Behrouz Notash
APPLIED ORGANOMETALLIC CHEMISTRY
(2020)
Article
Engineering, Chemical
Niloufar Nokhodiyan Isfahani, Mehrnaz Bahadori, Afsaneh Marandi, Shahram Tangestaninejad, Majid Moghadam, Valiollah Mirkhani, Masoud Beheshti, Niloufar Afzali
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2020)
Article
Chemistry, Inorganic & Nuclear
Hadi Kargar, Reza Behjatmanesh-Ardakani, Vajiheh Torabi, Asiyehalsadat Sarvian, Zahra Kazemi, Zahra Chavoshpour-Natanzi, Valiollah Mirkhani, Atefeh Sahraei, Muhammad Nawaz Tahir, Muhammad Ashfaq
Summary: Eight novel complexes containing four bidentate N,O-donor halogenated bis-Schiff base ligands were synthesized and their structures were confirmed by various spectroscopic techniques. Both experimental and theoretical results demonstrated that the DNA-binding affinity of the complexes increases with decreasing electronegativity of the substituted halogen atom.
INORGANICA CHIMICA ACTA
(2021)
Article
Chemistry, Physical
Mostafa Khajehzadeh, Majid Moghadam, Pardis Noorbakhsh
Summary: In this study, a novel [Mn(TPP)Cl]@AP-MWC heterogeneous catalyst was prepared by immobilizing manganese(III) tetraphenylporphyrinato choloride on multiwall carbon nanotubes. The catalyst showed high efficiency, easy separation, and high reusability in the oxidation of sulfides.
JOURNAL OF MOLECULAR STRUCTURE
(2021)
Article
Chemistry, Multidisciplinary
Raziyeh Hosseini, Reza Ranjbar-Karimi, Kazem Mohammadiannejad
Summary: The catalytic activity of four novel N,N-bidentate triarylmethane-based ligands with beta-pyridyl residues in Suzuki-Miyaura cross-coupling reactions was studied, showing excellent activity under thermal and sonochemical reaction conditions. The methodology provided a straightforward way for chemo- and homoselective cross-coupling reactions, with the structures of synthesized compounds fully characterized and studied for their coordination with palladium acetate.
JOURNAL OF THE IRANIAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Multidisciplinary
Raziyeh Hosseini, Reza Ranjbar-Karimi, Kazem Mohammadiannejad
Summary: The novel N,N-bidentate triarylmethane-based ligand showed excellent activity in Mizoroki-Heck reactions, and was identified as a useful alternative to phosphine ligands. The in-situ generated complex with Cu(OAc)(2) exhibited high efficiency in cross coupling reactions, leading to a selected library of formylated olefins in high yields. Additionally, the Friedel-Crafts alkylation of arenes with the derived olefins catalyzed by Fe(OTs)(3) was employed for the preparation of functionalized triarylmethanes, offering important advantages such as mild reaction conditions, short reaction times, high yields, simple work-up procedure, and broad substrate scope.
Article
Green & Sustainable Science & Technology
Behdad Shadidi, Gholamhassan Najafi, Mohammad Ali Zolfigol
Summary: Iran has significant reserves of petroleum, but the need for alternative fuels to address environmental issues is crucial. This study reviewed the potential and available resources for biodiesel production in different regions of Iran, aiming to contribute to the future development of the biodiesel industry.
Article
Chemistry, Physical
Fatemeh Rezazadeh-Jabalbarezi, Reza Ranjbar-Karimi, Fariborz Atabaki, Kazem Mohammadiannejad
Summary: The nucleophilic substitution reactions of aryl sulfonamides with tetrachloropyrimidine were investigated, resulting in the synthesis of a novel series of trichloropyrimidine tagged sulfonamides. The study revealed the site-selective nucleophilic attack of aryl sulfonamides at specific positions of tetrachloropyrimidine, leading to the formation of major and minor products. The chemical structure of the compounds was confirmed through various analytical techniques.
JOURNAL OF MOLECULAR STRUCTURE
(2023)
Article
Chemistry, Multidisciplinary
Raziyeh Hosseini, Reza Ranjbar-Karimi, Kazem Mohammadiannejad
Summary: This study evaluated a novel N,N-bidentate TRAM-based ligand in Suzuki-Miyaura cross-coupling reactions, showing promising activity as an alternative to traditional phosphine ligands. The in-situ generated complex of this ligand with CuI exhibited excellent activity in the cross-coupling of aryl bromides with 4-formylphenyl boronic acid, resulting in good yields of a pre-selected library of compounds.
Article
Chemistry, Multidisciplinary
Zahra Vari, Reza Ranjbar-Karimi, Kazem Mohammadiannejad
Summary: The nucleophilic substitution reactions of pentafluoropyridine with hydroxybenzaldehydes were examined, and the selectivity of reactions was found to be influenced by reaction conditions, reactant ratio, and nucleophilicity of the derived potassium formylphenolates. Under mild basic conditions, the nucleophilic attack occurred exclusively at the C-4 position of pentafluoropyridine, resulting in the formation of 4-((perfluoropyridin-yl)oxy)benzaldehydes in high yields. However, under harsh conditions, 3-hydroxybenzaldehyde acted as an effective nucleophile for replacing fluorine atoms at C-2 and/or C-6 positions of pentafluoropyridine. The controlled reactions of pentafluoropyridine with different amounts of 3-hydroxybenzaldehyde led to the synthesis of unsymmetrical products with varying yields.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Engineering, Environmental
Sana Fakhravar, Mehrdad Farhadian, Shahram Tangestaninejad
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2020)
Article
Chemistry, Inorganic & Nuclear
Najmeh Jarrah, Javier Troyano, Arnau Carne-Sanchez, Inhar Imaz, Shahram Tangestaninejad, Majid Moghadam, Daniel Maspoch
DALTON TRANSACTIONS
(2020)
Article
Chemistry, Multidisciplinary
Zahra Zamani Nori, Amir Landarani-Isfahani, Mehrnaz Bahadori, Majid Moghadam, Valiollah Mirkhani, Shahram Tangestaninejad, Iraj Mohammadpoor-Baltork
