Article
Polymer Science
Noelia Esteban, Miguel Claros, Cristina Alvarez, Angel E. Lozano, Camino Bartolome, Jesus M. Martinez-Ilarduya, Jesus A. Miguel
Summary: A new set of microporous organic polymers (POPs) with high microporosity and moderate thermal stability has been synthesized via Friedel-Crafts knitting. These polymers, containing diphosphine derivatives, act as efficient catalysts for Suzuki-Miyaura coupling reactions, exhibiting excellent recyclability.
Article
Chemistry, Applied
Mingyang Gao, Jiamin Wang, Weixiang Shang, Yuchao Chai, Weili Dai, Guangjun Wu, Naijia Guan, Landong Li
Summary: Suzuki-Miyaura cross-coupling reaction is a powerful method to construct carbon-carbon bonds and is widely used in the synthesis of functional organic compounds. In this study, zeolite-encased Pd particles (Pd@MFI) were successfully prepared and investigated as promising heterogeneous catalysts for the Suzuki-Miyaura cross-coupling reaction. The Pd@MFI catalysts showed high activity, with dispersed Pd particles efficiently stabilized within the MFI zeolite matrix. The presence of basic sites adjacent to Pd sites was crucial for achieving high catalytic activity.
Article
Chemistry, Multidisciplinary
Zhenhua Dong, Hongguo Pan, Jing Chen, Lulu Fan, Jiaxing Guo, Wentao Wang
Summary: The novel palladium nanoparticles were successfully prepared and characterized, showing superior catalytic performances in various reactions and excellent recyclability.
JOURNAL OF SAUDI CHEMICAL SOCIETY
(2021)
Article
Chemistry, Multidisciplinary
Aljaz Skrjanc, Dominik Jankovic, Anton Meden, Matjaz Mazaj, Erik Svensson Grape, Martin Gazvoda, Natasa Zabukovec Logar
Summary: This study reports the synthesis of the first Ni-based ZIFs and demonstrates their high potential as heterogeneous catalysts for the Suzuki-Miyaura cross-coupling reaction. The presence and arrangement of the carbonyl functional groups on the imidazole linker play a crucial role in completing the preferred octahedral coordination of nickel, providing a promising platform for the rational design of Ni-based ZIFs for a wide range of catalytic applications.
Article
Chemistry, Physical
Fatemeh Rajabi, Anand S. Burange, Leonid G. Voskressensky, Rafael Luque
Summary: A periodic mesoporous organosilica material functionalized with a bis-NHC palladium pincer complex was synthesized by sol-gel process. The resulting hybrid nanomaterial exhibited excellent activity and stability as a catalyst for Suzuki-Miyaura cross-coupling, showing no Pd contamination in the products and verifying the reaction to be truly heterogeneous.
MOLECULAR CATALYSIS
(2021)
Article
Chemistry, Multidisciplinary
Anindita Dewan, Manashi Sarmah, Prantika Bhattacharjee, Pankaj Bharali, Ashim J. Thakur, Utpal Bora
Summary: This study reports the design, synthesis, and application of naturally occurring cellulose from agro waste pomegranate peel as a novel support for active biogenic Pd nanoparticles for Suzuki-Miyaura and Sonogashira cross-coupling reactions at room temperature. The cellulose matrix enables well dispersion of Pd nanoparticles over the support to generate Pd@cellulose, exhibiting excellent catalytic activity and recyclability under ligand-free mild reaction conditions. The synthesized cellulose nanofibers and Pd-anchored heterogeneous nanofibers were characterized through various analytical techniques.
SUSTAINABLE CHEMISTRY AND PHARMACY
(2021)
Review
Chemistry, Physical
Gianluigi Albano, Antonella Petri, Laura Antonella Aronica
Summary: In recent years, there has been extensive research on immobilizing palladium nanoparticles on solid supports for the preparation of active and stable catalytic systems. Compared to inorganic materials, naturally occurring organic solids are more cost-effective and readily available. This review focuses on the application of metal catalysts supported by natural biomaterials in C-C bond formation reactions, specifically Mizoroki-Heck, Suzuki-Miyaura, and Sonogashira reactions. Different types of organic matrices, such as cellulose, starch, pectin, agarose, chitosan, as well as proteins and enzymes, are discussed, highlighting the heterogeneous nature and recyclability of each catalyst.
Article
Chemistry, Multidisciplinary
P. S. Pharande, G. S. Rashinkar, D. M. Pore
Summary: A novel cellulose-supported Schiff base Pd(II) complex was successfully designed and synthesized, showing high catalytic activity and reusability in the Suzuki Miyaura cross-coupling of phenyl boronic acid and aryl halides. The method exhibited high TONs and TOFs, low catalyst loading, and the synthesis of novel biphenyl derivatives.
RESEARCH ON CHEMICAL INTERMEDIATES
(2021)
Article
Chemistry, Physical
Chau Ming So, On Ying Yuen, Shan Shan Ng, Zicong Chen
Summary: This study presents a general chemoselective Suzuki-Miyaura coupling using a Pd/L33 catalyst, showing efficient coupling of polyhalogenated aryl triflates by controlling reactivity order and key factors, achieving high yields and chemoselectivity with low Pd catalyst loading.
Article
Chemistry, Applied
Hao Jin, Chi Zhang, Pingwei Liu, Xin Ge, Shaodong Zhou
Summary: A Schiff base hollow covalent organic framework (COF) was successfully used to anchor Pd(II) and synthesize a highly efficient Pd@COF-TB nanocatalyst. The Pd@COF-TB catalyst exhibited good catalytic performance in Suzuki-Miyaura coupling reactions and could be conveniently recovered and reused.
APPLIED ORGANOMETALLIC CHEMISTRY
(2022)
Article
Multidisciplinary Sciences
Lara E. Zetzsche, Jessica A. Yazarians, Suman Chakrabarty, Meagan E. Hinze, Lauren A. M. Murray, April L. Lukowski, Leo A. Joyce, Alison R. H. Narayan
Summary: This study demonstrates the use of cytochrome P450 enzymes for biocatalytic cross-coupling reactions, enabling the formation of sterically hindered biaryl bonds through oxidative C-C bond formation. By engineering the substrate and atroposelectivity of the P450 enzyme, a highly efficient and selective process has been developed.
Article
Chemistry, Inorganic & Nuclear
Jiayou Hou, Lin Zhang, Yunjing Li, Yan Xia, Zixuan Huang, Hai Fu, Peipei Guo, Yuhui Ao
Summary: Five Pd(ii)/polyoxometalate catalysts with a unique atomic arrangement and high Pd loading were synthesized under solvothermal conditions, and their structures were determined by single crystal X-ray diffraction. The synergistic effect of polyoxometalate anions and Pd allows the Suzuki-Miyaura reactions to proceed under mild conditions. The structure of one of the five compounds can still be maintained without a significant yield decrease after four continuous reaction cycles. This catalyst was further explored for the synthesis of different derivatives, demonstrating its versatility and stability in catalyzing various reactions.
INORGANIC CHEMISTRY FRONTIERS
(2021)
Article
Chemistry, Applied
Orhan Altan
Summary: This study investigates the catalytic activity of Pd (II) complexes of phosphino-benzaldoxime ligands in Suzuki-Miyaura coupling reactions. The results show that reducing the amount of catalyst leads to an increase in catalytic activity, and it is found that palladium nanoparticles formed in the reaction medium are responsible for this activity. This study contributes to the debate over whether the catalytic activity of phosphine-palladium complexes in SMC reactions results from a homogeneous or heterogeneous pathway.
APPLIED ORGANOMETALLIC CHEMISTRY
(2022)
Review
Chemistry, Physical
Manash R. Das, Najrul Hussain, Ritupana Duarah, Nidhi Sharma, Priyakhee Sarmah, Ashutosh Thakur, Prantika Bhattacharjee, Utpal Bora, Rabah Boukherroub
Summary: This review discusses the synthetic techniques used to prepare metal nanoparticles on various 2D materials, with special focus on graphene and other 2D analogues such as g-C3N4, h-BN, MoS2, WS2 etc. The review also outlines the applications of metal nanoparticles-2D composite materials in catalytic coupling reactions and explores the effect of size and morphology on their catalytic performance.
CATALYSIS REVIEWS-SCIENCE AND ENGINEERING
(2022)
Article
Chemistry, Physical
Yiyang Zhang, Hong Sun, Yonghuai Yang, Haofei Li, Yaocheng Shi, Lei Yu
Summary: The catalytic activities of palladium nanoparticles on a polyaniline support were improved by tungsten doping, resulting in a significantly increased catalyst turnover number (>10(4)) for the Suzuki-Miyaura coupling reaction. Characterization of the materials showed that tungsten doping improved the micro-morphology, leading to more efficient absorption of reactants. Additionally, tungsten facilitated stabilization of Pd(0) species and the transmetallation step, both crucial for the catalytic reaction. Therefore, Pd/W@PANI engineering material may serve as a highly efficient heterogeneous catalyst in the pharmaceutical industry.
CATALYSIS SCIENCE & TECHNOLOGY
(2023)
Article
Materials Science, Ceramics
Atefeh Nasri, Babak Jaleh, Zahra Nezafat, Mahmoud Nasrollahzadeh, Saeid Azizian, Ho Won Jang, Mohammadreza Shokouhimehr
Summary: Gold nanoparticles were fabricated on graphitic carbon nitride using laser ablation in liquid and ultrasonication. The prepared nanocomposite was characterized and used as an efficient catalyst for the reduction of 4-nitrophenol and methyl orange at room temperature. The recyclability of the catalyst was also examined.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Composites
Hossein Mostaanzadeh, Mohammad Shahmohammadi, Ali Ehsani, Mojtaba Moharramnejad, Mohammadreza Babazadeh
Summary: In this study, a new Fe(II)-based MOF material Fe-BTC was synthesised and used to prepare POAP/Fe-BTC composite films as active electrodes for electrochemical storage devices. Characterisation analysis revealed that the electrode has a high energy storage capacity and exhibits good stability and high active surface area in an aqueous electrolyte.
PLASTICS RUBBER AND COMPOSITES
(2022)
Article
Chemistry, Inorganic & Nuclear
Niloofar Fadaee Takmil, Babak Jaleh, Bahareh Feizi Mohazzab, Sadegh Khazalpour, Akbar Rostami-Vartooni, Thi Hong Chuong Nguyen, Xuan Cuong Nguyen, Rajender S. Varma
Summary: The study demonstrated that decorating zeolite waste with Titania and gold nanoparticles produced by laser ablation positively impacted electrode performance and increased hydrogen adsorption/desorption compared to initial zeolite.
INORGANIC CHEMISTRY COMMUNICATIONS
(2021)
Review
Chemistry, Multidisciplinary
Hamidreza Parsimehr, Ali Ehsani
Summary: Electrochemical energy storage devices that respond to external stimuli have been developed rapidly, enhancing performance and applications. The multi-responsive behaviors of these devices stem from their functionality and specific structure. Future research will focus on merging economic, environmental, and multi-responsiveness priorities to improve performance and address complex situations.
Review
Polymer Science
Mojtaba Moharramnejad, Ali Ehsani, Saba Salmani, Mehrnaz Shahi, Rahime Eshaghi Malekshah, Zahra Sadat Robatjazi, Hamidreza Parsimehr
Summary: This review provides new insights into the targeted drug delivery and medicinal applications of Zn-based MOF. The stability of MOF can be controlled through functionalization and proper structure and composition choices. Managing particle size distribution and surface alteration are crucial factors to consider for bio-applications of MOF. Recent research has shown that Zn-based MOF can serve as a viable delivery system for non-toxic/biocompatible medicines and therapeutic agents in biological and medical applications. This study explores the toxicity, biocompatibility, stability, and production techniques of Zn-based MOF, providing ideal venues for further research in biological applications.
JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS
(2022)
Article
Biochemistry & Molecular Biology
Babak Jaleh, Sara Hamzehi, Reza Sepahvand, Saeid Azizian, Mahtab Eslamipanah, Reza Golbedaghi, Alireza Meidanchi, Rui Fausto
Summary: Polycarbonate (PC)-ZnO nanocomposite films prepared by a solution stirring technique showed increased crystallinity, reduced water contact angle, and enhanced microhardness after ultraviolet irradiation.
Article
Materials Science, Ceramics
Ensiye Shabanlou, Babak Jaleh, Omid Imantalab, Arash Fattah-Alhosseini
Summary: In this study, a simple, cost-effective, and green process to generate titanium nitride (TiN) ceramic structure on the titanium surface was developed. Laser treatment of titanium improved its hardness, corrosion resistance, and wear resistance, forming a TiN layer with desirable corrosion resistance properties.
CERAMICS INTERNATIONAL
(2022)
Review
Engineering, Electrical & Electronic
Mojtaba Moharramnejad, Ali Ehsani, Rahime Eshaghi Malekshah, Mehrnaz Shahi, Razieh Bavandpour, Hamidreza Rajabi, Seyyed Mohammadreza Mojab
Summary: This review provides an overview of the synthesis, surface, and electrochemical investigations of Mn-based compounds for the development of new supercapacitors. Mn products are of great interest due to their excellent theoretical capacitance, stability, and low cost. The study discusses the synthesis, characterization, and performance of different Mn compounds, showing their potential for high-performance and environmentally friendly energy storage devices.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Chemistry, Physical
Bahareh Feizi Mohazzab, Anise Akhundi, Kourosh Rahimi, Babak Jaleh, Alireza Z. Moshfegh
Summary: A solution combustion method was used to fabricate a photoanode based on bismuth vanadate. Adding phosphorus-doped g-C(3)N(4) nano-sheets to the bismuth vanadate was effective in reducing charge recombination. The optimized photoanode exhibited a significantly higher photocurrent density compared to the control sample.
ACS APPLIED ENERGY MATERIALS
(2022)
Review
Engineering, Electrical & Electronic
Mojtaba Moharramnejad, Ali Ehsani, Rahime Eshaghi Malekshah, Mehrnaz Shahi, Hamidreza Haghgoo Qezelje, Mehrban Nekoeifard, Elham Azarash, Hamidreza Parsimehr
Summary: This review provides an overview of the synthesis, surface, and electrochemical investigations on cobalt-based compounds in the development of new supercapacitors. The excellent theoretical capacitance quantities, chemical stability, thermal stability, lower cost, and ready availability of cobalt products have attracted a lot of interest. The synthesis, characterization, and performance of different compounds with Co are discussed in detail. These reports highlight the exciting commercial potential for high-performance, environmentally friendly, and low-cost electrical energy storage devices based on different compounds of Co.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Chemistry, Analytical
Atefeh Nasri, Babak Jaleh, Milad Daneshnazar, Rajender S. Varma
Summary: To combat environmental pollution, the development of gas sensor platforms using nanomaterials, such as graphitic carbon nitride (g-C3N4) and gold nanoparticles, has been proposed. The g-C3N4 nanosheets were prepared from urea through a simple heating process and then loaded with gold nanoparticles synthesized by laser ablation. The resulting nanocomposite demonstrated enhanced sensing sensitivity towards organic vapors, especially methanol, making it a promising sensing compound for electronic and electrochemical applications.
Article
Biochemical Research Methods
Somayeh Jafari, Seied Mahdi Pourmortazavi, Ali Ehsani, Somayeh Mirsadeghi
Summary: This work reports the profit of using a MOF compound for developing a sensitive electrochemical sensor to free chlorine detection in an aqueous solution. Co-MOF and FGO composites were synthesized and combined with the carbon paste (CP) to prepare an efficient electrochemical sensor with high sensing ability. The fabricated CoMOF and FGO composites were characterized and tested for their electrochemical performance, showing good linear response and low detection limit. The proposed sensor was successfully used for detecting free chlorine in tap water and swimming pool water samples.
ANALYTICAL BIOCHEMISTRY
(2023)
Review
Chemistry, Multidisciplinary
Rahime Eshaghi Malekshah, Mojtaba Moharramnejad, Sajjad Gharanli, Mehrnaz Shahi, Ali Ehsani, Jebiti Haribabu, Hassan Ouachtak, Babak Mirtamizdoust, Khanita Kamwilaisak, Mika Sillanpaa, Hadi Erfani
Summary: Catalysts have played a crucial role in advancing human civilization throughout history. Metal-organic frameworks (MOFs) have emerged as promising candidates for heterogeneous catalysis due to their unique physicochemical properties and hybrid structures. MOFs offer tunable porosity and control over catalyst properties, making them versatile for various reactions. This review focuses on the use of MOFs in value-added compound production and highlights their potential in CO2 fixation, reduction, and water splitting reactions. Overall, MOFs have great potential as versatile catalysts for diverse applications in the future.
Review
Chemistry, Physical
Babak Jaleh, Atefeh Nasri, Mahtab Eslamipanah, Mahmoud Nasrollahzadeh, Jacky H. Advani, Paolo Fornasiero, Manoj B. Gawande
Summary: Industrialization has led to increased demand for clean energy storage and conversion systems to reduce the use of environmentally harmful substances. Nature-inspired materials, with their extended porous architectures, high surface areas, and low cost, show great potential as catalysts and nanofillers in energy storage and conversion. This review summarizes the structure and classification of natural materials suitable for energy devices, focusing on their applications and advancements in fuel cells.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Multidisciplinary
Zihan Ma, Lishuang Wang, Tingting Chen, Guangning Wang
Summary: In this study, two kinds of 3D self-doped (N/O) lilac-based and coriander-based porous carbons with high performance have been prepared.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Qin Wang, Yun-Fan Yan, Jiao-Lin Weng, Ying Huang, Fu Yang, Hao-Hui Xie, Fei Tan, Fa-Kun Zheng, Jian-Gang Xu
Summary: Balancing energy and mechanical sensitivities is a challenging issue in the field of energetic materials. This study constructed a 3D energetic metal-organic framework with nitrogen-rich ligand and NO3- anions. The framework demonstrated high stability, energy density, and excellent mechanical sensitivities, making it a potential insensitive energetic material.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Marrium Saeed, Urooj Kamran, Amina Khan, Md Irfanul Haque Siddiqui, Hasan Jamal, Haq Nawaz Bhatti
Summary: In this study, magnesium-aluminum layered double hydroxides (Mg-Al-LDH) were synthesized using an environmentally friendly hydrothermal technique for adsorbing the dye reactive green 5 (RG5). To improve the adsorption capability, composites were prepared by combining Mg-Al-LDH with low-cost Mangifera indica stone biomass (MISB). The results showed that the composites had high adsorption capacities for RG5 dye and could be regenerated.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Xuanlin Zhan, Xiaojie Li, Yunyan Zeng, Siyan Jiang, Chao Pan, Shiyu Pan, Jiaquan Huang, Heqian Zhang, Zhiwei Qin
Summary: This study reports on the potential prospects of natural products derived from the rhizosphere for the development of antibiotics and herbicides, as well as the advancements in cultivating a mutant strain that produces a substantial quantity of lydicamycins, a potent family for herbicide development.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Jie Zhu, Jiangtao Yu, Linhua Zhu, Xiaoxiao Yu, Jixing Liu, Yanhong Chao, Jingzhou Yin, Peiwen Wu, Jian Liu, Wenshuai Zhu
Summary: This study successfully demonstrates the 3D printing of attapulgite monoliths and investigates the influence of thermal treatment on their properties. The thermal treated monoliths show superior catalytic performance at low temperatures.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Yanzhu Ye, Yixiang Ye, Jiannan Cai, Zhongshui Li, Shen Lin
Summary: In this paper, a novel Pt/CoP/C photo-electro synergistic catalyst was successfully synthesized and its performance was investigated. The catalyst exhibited excellent photo-electro catalytic performance, with significantly higher hydrogen production compared to a commercial catalyst. The introduction of cobalt phosphide and the existence of Co3O4 were identified as key factors for enhancing the catalytic activity.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Nurul Hidayah Abu Bakar, Wan Norfazilah Wan Ismail, Hartina Mohd Yusop, Noreen Farzuhana Mohd Zulkifli
Summary: Hydrophobic coatings inspired by the lotus effect have gained popularity for their ability to solve various problems. The sol-gel method, utilizing silica, alumina, and titania, is explored as an environmentally friendly approach to produce water-based hydrophobic coatings. This study focuses on producing water-based hydrophobic coatings for cotton and polyester fabrics using a one-step sol-gel method. The coated fabrics exhibited improved hydrophobic properties, altered surface morphologies, and lower air permeability compared to uncoated fabrics. TEOS-PDMS coating provides a promising approach for enhancing the hydrophobic and surface properties of cotton and polyester fabrics.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Nikita Belko, Hanna Maltanava, Anatol Lugovski, Polina Shabunya, Sviatlana Fatykhava, Evgeny Bondarenko, Pavel Chulkin, Sergey Poznyak, Michael Samtsov
Summary: This study investigates the difference in electrochemical behavior between rhodamine B hydrazide and rhodamine B acylhydrazone, and finds that rhodamine B acylhydrazone exhibits higher reversibility in electrooxidation. These results can be applied for developing new sensors with desired electrochemical properties.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Showket Ahmad Bhat, Mohd Ikram
Summary: In this study, 0-3 particulate multiferroic composites were synthesized and characterized. The composites exhibited excellent ferroelectric and ferromagnetic properties, as well as high piezoelectric strain and magnetoelectric coupling effects.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Carla Gomes, Mariana Costa, Susana M. M. Lopes, Bernardo Albuquerque Nogueira, Rui Fausto, Jose A. Paixao, Teresa M. V. D. e Melo, Luisa M. D. R. S. Martins, Marta Pineiro
Summary: The development of sustainable processes requires the integration of green chemistry principles. In this study, a solvent-free synthesis method was developed to prepare new copper catalysts, which efficiently catalyze cycloaddition reactions under solvent-free mechanochemical conditions. Through this process, the principles of atom economy, reduction of solvents and auxiliaries, design for energy efficiency, and reduction of derivatives and catalysis are combined.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Zhihua Liu, Jinzhe Li, Jianguo Zhou
Summary: This study demonstrates the enhancement of photoelectrochemical activity of BiFeO3 photoelectrodes through ion modification, which increases visible light absorption and active area, leading to improved PEC water splitting performance.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Yisheng Zhang, Wensong Li, Jing Li, Fang Li, Wei Xue, Xinqiang Zhao, Yanji Wang
Summary: Pt/C and SO42-/ZrO2 were used as catalysts for the synthesis of p-aminophenol through the catalytic transfer hydrogenation of nitrobenzene in water with formic acid as the hydrogen source. The optimal Pt loading for PAP selectivity was found to be 1 wt%. The presence of different valence states of Pt affected both the nitrobenzene hydrogenation and formic acid decomposition. Among different solid acid catalysts tested, SO42-/ZrO2 exhibited the highest catalytic activity for p-aminophenol formation. Under the optimized reaction conditions, the conversion of nitrobenzene reached 80.0%, with a selectivity of 47.6% for p-aminophenol.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Pradyota Kumar Behera, Papita Behera, Amlan Swain, Santosh Kumar Sahu, Ajeena Sahoo, Laxmidhar Rout
Summary: We have developed a simple and direct method for the synthesis of diaryl ether using an oxygen bridged bimetallic CuMoO4 nanocatalyst under mild reaction conditions. The catalyst exhibited tolerance towards a wide range of substrates with various functional groups. It is efficient and recyclable. This methodology allows easy access to nitrofen derivatives (herbicides) from unactivated 2,4-dichlorophenol, which are important for agriculture and pharmaceuticals.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Yihua Fu, Yan Zhang, Changwei Hu, Zhishan Su
Summary: The mechanism of the reaction between CO2 and styrene oxide for cyclic carbonate was revealed using density functional theory calculations. The noncatalytic reaction occurred via a concerted mechanism, while in the presence of guanidine and tetrabutylammonium iodide (TBAI) co-catalysts, the epoxide ring-opening by nucleophilic attack of an iodide anion was predicted to be the rate-determining step. Guanidine acted as the H-bond donor to activate styrene oxide, facilitating the reaction with a lower activation barrier.
NEW JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Saikat Khamarui, Sirshendu Ghosh
Summary: Copper nanorods (Cu-NRs) exhibit significant plasmonic behavior and can act as efficient catalysts in redox processes and coupling. A benign decarboxylative approach, utilizing localized surface plasmon resonance (LSPR) assisted catalysis with Cu-NRs, has been developed for the production of alkane analogues from alkyl carboxylic acids under visible light. The catalyst shows a broad substrate scope and high functional group tolerance, without the need for an external oxidant or proton source. A plausible mechanism for this recyclable nano-catalyst has also been proposed based on control experiments.
NEW JOURNAL OF CHEMISTRY
(2024)
