Article
Chemistry, Organic
Haibo Mei, Li Wang, Romana Pajkert, Qian Wang, Jingcheng Xu, Jiang Liu, Gerd-Volker Roeschenthaler, Jianlin Han
Summary: An efficient route for the synthesis of functionalized fluorinated pyrazolines derivatives was developed by conducting a [3+2] cycloaddition reaction of unstable difluoromethylphosphonate-containing diazoalkanes with vinyl sulfones under simple reaction conditions. The difluoro diazalkanes were generated in situ using t-BuONO for the diazotization of (beta-amino-alpha,alpha-difluoroethyl)phosphonates, demonstrating good stability and reactivity.
Article
Spectroscopy
Kishor B. Kale, Mandakini A. Shinde A. Shinde, Rajendra H. Patil, Divya P. Ottoor
Summary: The interaction of Valsartan and the zinc complex with DNA was studied, showing that VZn binds more strongly to DNA compared to Val. VZn exhibited good anticancer activity against human lung cancer cells.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2022)
Article
Chemistry, Organic
Jie Jin, Ruixiang Xu, Xuedan Wu, Xiaolong Fang, Weili Kong, Kehua Zhang, Jie Cheng
Summary: The synthesis of novel sinomenine N-heterocyclic derivatives, including D-ring tetrazole-isoxazole and tetrazole-triazole derivatives, was achieved through 1, 3-dipolar cycloaddition reactions at N-CH3. A total of 34 derivatives were obtained in yields of 69-93%. The N-CH3 of sinomenine was first converted into N-CN, which then reacted with sodium azide to yield the N-tetrazole derivative. Further reactions with isoxazole bromides and prop-argyl bromide resulted in the formation of tetrazole-isoxazole and tetrazole-triazole derivatives, respectively. The synthesized derivatives were characterized using FT-IR, HRMS, 1H NMR, and 13C NMR spectroscopy.
Article
Chemistry, Multidisciplinary
Shengjie Jiang, Yanping Cai, Thayalan Rajeshkumar, Iker del Rosal, Laurent Maron, Xin Xu
Summary: This work presents the synthesis, characterization, and reactivity of the first well-defined zinc α-diazoalkyl complex. The complex reacts with a nickel catalyst to form an α-zincated phosphorus ylide, or undergoes [3+2] cycloaddition with CO2 or CO to produce a five-membered heterocyclic product. The use of CO in the cycloaddition reaction is unprecedented, demonstrating a novel CO reaction mode.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Pallab Karjee, Santu Mandal, Bijoy Debnath, Nirali Namdev, Tharmalingam Punniyamurthy
Summary: Efficient annulation of in situ formed azaoxyallyl cations using diaziridines has been achieved at room temperature with the aid of a base, leading to the formation of 1,2,4-triazines. The practical advantages of this reaction include its broad substrate scope, scalability, high tolerance towards functional groups, and the absence of transition-metal catalysts.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Tsukasa Tawatari, Ritsuki Kato, Riku Kudo, Kiyosei Takasu, Hiroshi Takikawa
Summary: In this study, we report on the intramolecular (3+2) cycloaddition reactions between ynamides and benzyne. These reactions involve the formation of two bonds and are facilitated by using benzyne precursors containing a chlorosilyl group. The intermediate indolium ylide in these reactions exhibits both nucleophilic and electrophilic properties at its C2 atom.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Engineering, Environmental
Yaqun Dong, Yuji Liu, Wei Huang, Yongxing Tang
Summary: In this study, two isomeric compounds were synthesized using a new method, and their energetic properties were examined. The results showed that one of the compounds exhibited better detonation performance, higher thermal stability, and lower mechanical sensitivities, suggesting its potential as an energetic material.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Applied
Vinh Do Cao, Sinjae Lee, Seewon Joung
Summary: This study investigates a (3+2) cycloaddition reaction between linear N,N-disilyl enamines and organic azides. The N,N-disilyl enamines, obtained from the selective double hydrosilylation of conjugated nitriles, are used in-situ for this reaction. The resulting triazoline intermediate promptly undergoes retro-(3+2) cycloaddition to yield versatile non-stabilized diazoalkane and formamidine. The presence of transient and unstable alkyl diazomethane is confirmed by utilizing carboxylates as trapping reagents. Furthermore, the versatility of these alkyl diazomethanes is demonstrated in reactions with various reagents, including hydroborane, diboron, silaborane, alkenes, and alkynes.
ADVANCED SYNTHESIS & CATALYSIS
(2023)
Article
Chemistry, Organic
Hongling Wang, Qiangqiang Zhang, Shuai Xiao, Guanjie Wang, Xuan Huang, Xingkuan Chen, Junmin Zhang
Summary: We have developed a N-heterocyclic carbene (NHC) and base-mediated [3 + 3] annulation reaction for the synthesis of enantioselective dihydropyrano[3,2-b]indoles. Easily prepared sulfonium salts were used as precursors and reacted with unsaturated acyl azolium to achieve this transformation. The reaction conditions are mild and result in privileged indole-fused dihydropyranones with moderate to good yields and excellent enantioselectivities.
ORGANIC CHEMISTRY FRONTIERS
(2023)
Article
Chemistry, Applied
Qi Huang, Chuanjiang Xiong, Yungui Peng
Summary: A diastereoselective (3+3) cycloaddition of azomethine imines and in situ-generated azaoxyallyl cations from a-halohydroxamate promoted by a Bronsted base has been developed. A series of pyrazolo [1,2-a][1,2,4]triazin-6-ones were accessed with up to 95% yields and diastereoselectivities greater than 20:1. The asymmetric version of this reaction was explored and moderate enantioselectivity was achieved after screening a series of cinchonine-derived chiral catalysts.
ADVANCED SYNTHESIS & CATALYSIS
(2023)
Article
Chemistry, Organic
Guo-Li Chai, En-Ze Yao, Rui-Hao Liu, Junbiao Chang
Summary: In this study, a new catalytic system was reported for the synthesis of N,N'-bicyclic pyrazolidine derivatives with high stereoselectivity. The reaction conditions are mild and efficient, with a broad substrate scope.
Article
Chemistry, Applied
Tao Wang, Bo Huang, You-Qing Wang
Summary: Using chiral phosphoric acids as organocatalysts, a formal asymmetric (4+2) cycloaddition of 3-methylene isoindolinone and in situ-generated ortho-quinone methide substrates is achieved. This reaction allows the construction of spiro chroman-isoindolinones containing spiro-N,O-heterocycles with high enantioselectivity, with a broad substrate scope.
ADVANCED SYNTHESIS & CATALYSIS
(2022)
Article
Chemistry, Organic
Zhi Zhao, Xing-Xing Yang, Guang-Yao Ran, Qin Ouyang, Wei Du, Ying-Chun Chen
Summary: This study presents palladium-catalyzed regiodivergent asymmetric annulations of vinyl indoloxazolidones, which can act as 1,5-carbodipoles or 1,3-carbodipoles by tuning the chiral ligands and conditions, in the assemblies with sulfamate-derived cyclic imines and even activated alkenes. A diversity of polycyclic products are generally constructed with high regio- and enantioselectivity.
Article
Chemistry, Physical
Kai-Qiang Zhang, Qi-Fu Deng, Jie Luo, Chu-Liang Gong, Zhi-Gang Chen, Wei Zhong, Shun-Qin Hu, Hai-Fei Wang
Summary: This study successfully developed an asymmetric [3+2] cycloaddition reaction catalyzed by a multifunctional Ag(I)/CAAA-amidphos complex, enabling the high-yield synthesis of chiral pyrrolidines with quaternary stereocenters and bridged dinitrogen heterocycles with excellent enantioselectivity.
Article
Chemistry, Multidisciplinary
Xiaobing Huang, Jingxun Yu, Xinjun Luan
Summary: A general and efficient approach for the synthesis of ?-lactams has been developed. Hydroxylamines undergo Lossen rearrangement with base, followed by [3+2] cycloaddition reaction with vinyl cyclopropane, leading to the formation of desired products. This strategy exhibits broad substrate scope, excellent functional group tolerance, and high efficiency, allowing for further modifications of the resulting ?-lactams derivatives.
CHINESE JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
Anjum Afrooze, Dadamiah P. M. D. Shaik
Summary: This study presents a solution combustion approach to produce marigold Co3O4 nanoparticles as potential electrode material for supercapacitors. The effect of vacuum annealing on the microstructural and electrochemical properties is explored, and the prepared nanoparticles exhibit high specific capacitance and electrochemical stability.
INORGANIC CHEMISTRY COMMUNICATIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
A. Atta, Nuha Al-Harbi, B. M. Alotaibi, M. A. M. Uosif, E. Abdeltwab
Summary: In this study, PVA/NaI films were prepared by doping polyvinyl alcohol with sodium iodide. The films were then irradiated with argon ions at different fluence levels. Various characterization techniques were used to study the structural and electrical changes in the films. The results show that the dielectric behavior of the treated PVA/NaI films was significantly modified, making them more suitable for various devices.
INORGANIC CHEMISTRY COMMUNICATIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Xingang Wang, Chao Ma, Fubing Zou, Hai Hu, Jiayu Li, Hongyun Luo
Summary: By hybridizing TiO2 photocatalyst with CaCO3 as the wall material and using linseed oil as the core material, self-cleaning and self-repairing microcapsules were produced using in-situ precipitation. The microcapsules were evaluated for their morphology, chemical composition, thermal stability, and self-cleaning and self-repairing properties. Results showed that the microcapsules had a rough and spherical surface, along with excellent thermal stability and repeatability. Increasing the dosage of microcapsules significantly increased the degradation rate of methylene blue, while the self-repairing effect of micro-cracks became more evident. The optimal microcapsule dosage was found to be 7.0 wt%.
INORGANIC CHEMISTRY COMMUNICATIONS
(2024)
Review
Chemistry, Inorganic & Nuclear
Muhammad Farooque Lanjwani, Mustafa Tuzen, Muhammad Yar Khuhawar, Tawfik A. Saleh
Summary: The development of the textile industry has raised concerns due to the contamination of drinking water by organic dyes, which pose a carcinogenic risk to humans. Nanomaterials, particularly semiconductors, have been utilized for photocatalytic degradation of dye pollutants. Various parameters, such as catalyst dosage, irradiation time, light sources, initial dye concentration, temperature, and pH, play significant roles in the degradation process. Different generations of photocatalytic nanomaterials, including single metal nanoparticles, binary and ternary metal oxides, as well as inert solid substrates with photocatalysts, have been employed for dye degradation.
INORGANIC CHEMISTRY COMMUNICATIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
V. Ramasamy, E. Thenpandiyan, G. Suresh, T. Sathishpriya, Suresh Sagadevan
Summary: The nano CaCO3 and Eu3+ doped CaCO3/PEG nanocomposites were prepared through the biomimetic method. The prepared products were characterized and the electrochemical performance was evaluated. The results showed that the Eu3+ doped CaCO3/PEG nanocomposite exhibited superior pseudocapacitive behavior and could be used as an electrode material for supercapacitor applications.
INORGANIC CHEMISTRY COMMUNICATIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Shuxiang Duan, Ping Li, Hongqiang Zhang, Suping Qu
Summary: Panax ginseng, as an ethnomedicinal plant, has therapeutic effects in traditional medicine. This study investigated the potential use of green-synthesized silver nanoparticles from Panax ginseng leaf extract for the treatment of lung carcinoma and heart protection against mitochondrial dysfunction and cardiac dysfunction in obese insulin-resistant rats. The silver nanoparticles showed spherical morphology with a size range of 12.11 to 43.33 nm. In vivo experiments demonstrated that the silver nanoparticles significantly improved metabolic parameters, heart rate variability, cardiac function, and cardiac mitochondrial function in the rats. This study suggests that silver nanoparticles derived from Panax ginseng have cardioprotective effects.
INORGANIC CHEMISTRY COMMUNICATIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Maryam Fayazi, Elham Rezvannejad
Summary: In this study, propolis extract was used as a green reductant to deposit silver nanoparticles on sepiolite clay, creating a nanocomposite called Sep/Ag. The nanocomposite was characterized using various techniques, and its ability to adsorb methylene blue (MB) was examined. The results showed that Sep/Ag could efficiently remove MB from solution, and the adsorbent could be regenerated for multiple cycles. This research demonstrates the potential of Sep/Ag nanocomposite as an effective and environmentally friendly sorbent for environmental cleanup.
INORGANIC CHEMISTRY COMMUNICATIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
M. Sriramraj, A. R. Balu, S. Chitra Devi, B. Sowmiya Devi, M. Suganya, K. Devendran, M. Karthika, S. Adityan
Summary: One-pot green synthesis was used to prepare rGO decorated MgTiO3 perovskite using Solanum trilobatum leaf extract to reduce graphene oxide. The rGO embedded MgTiO3 nanoparticles showed smaller crystallite size, well-defined particle boundaries, increased photodegradation efficiency and antibacterial activity compared to pure MgTiO3.
INORGANIC CHEMISTRY COMMUNICATIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Zhiliang Guo, Qianheng He, Helin Wang, Changgan Lai, Shuai Ji, Jian Sun, Donghuai Zhang, Liu Nie, Lixu Lei
Summary: Waste plastics are causing serious environmental pollution and there is a pressing need for their recycling. This study presents a novel method to completely degrade waste PET into sodium terephthalate and ethylene glycol through a solid-state reaction at high temperature with minimal solvent. The method offers high efficiency, selectivity, and ease of product separation, making it a promising approach for the recycling economy of other ester-based waste polymers.
INORGANIC CHEMISTRY COMMUNICATIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Hanan Alhussain, Nuha Y. Elamin, Laila S. Alqarni, Abuzar Albadri, Kamal K. Taha, A. Modwi
Summary: A CaO-TiO2@g-C3N4 sorbent was constructed using sonication method for the elimination of RhB dye from aqueous medium. The sorbent demonstrated equilibrium for the dye adhesion after 120 minutes, with a maximum adsorption capacity of 778.7 mg/g. The nanocomposite showed satisfactory performance in neutral aquatic conditions.
INORGANIC CHEMISTRY COMMUNICATIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Wei-Dong Liu, Liu-Qing Chen, Qi-Hao Qiu, Ming-Qiang Qi, Han Xu, Chao-Long Chen, La-Sheng Long, Lan-Sun Zheng, Xiang-Jian Kong
Summary: In this study, a mixed valence cerium-oxo cluster was successfully synthesized through low-temperature crystallization, and the coexistence and distribution of Ce ions in different valence states were determined. The mechanism for the generation of +4 valence state was revealed, and the synthesized cluster exhibited strong ultraviolet absorption and long visible light absorption, as well as clear photocurrent response and high photocurrent intensity.
INORGANIC CHEMISTRY COMMUNICATIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Mahak Dalal, Nidhi Antil, Binesh Kumar, Jai Devi, Sapana Garg
Summary: This research study focuses on the biological efficacy of a newly synthesized Schiff base ligand and its aryltellurium(IV) complexes. The synthesized compounds were characterized using various physical and spectral investigations, and theoretical chemical estimations were also conducted. The results showed that the complexes exhibited mild to strong antimicrobial activity, with higher activity than the Schiff base. Molecular docking experiments revealed the ability of the compounds to bind to receptors. ADMET results indicated favorable drug-like behavior of the synthesized compounds. Overall, these complexes may serve as promising candidates for infection ailments.
INORGANIC CHEMISTRY COMMUNICATIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Indu Sharma, Ajay Kumar, Jaspreet Kaur, Sanjay Mehra, Arvind Kumar, Suresh Kumar Sharma, Surinder Kumar Mehta, Ramesh Kataria
Summary: Nanozyme based sensors have been developed as an effective method for detecting harmful metal ions in water samples. In this study, a Co(II) based coordination polymer nanoparticle (Co-CP NP) was synthesized and utilized as a nanozyme to detect Fe(II) ions selectively. The Co-CP NP exhibited peroxido-reductase mimicking activity, and the detection limit for Fe(II) ions was found to be 0.66 μM. The catalytic action of the Co-CP NP was further analyzed using Michaelis-Menten kinetics, and the detection mechanism was elucidated through XPS and zeta potential analysis.
INORGANIC CHEMISTRY COMMUNICATIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Sreenivasulu Venkata Kummari, Vadali Venkata Satya Siva Srikanth
Summary: A simple single-step sonochemical reduction method is used to prepare CoFe2O4-CoFe-reduced graphene oxide (rGO) composites with control of rGO content. The tunable interfacial magnetic proximity-induced magnetization at the interface of CoFe2O4-CoFe and rGO is observed.
INORGANIC CHEMISTRY COMMUNICATIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Asma Zaka, Muhammad Waqas Iqbal, Amir Muhammad Afzal, Hassabul Hassan, Sarah Alharthi, Mohammed A. Amin, Ahmad M. Saeedi, Hasan B. Albargi, A. Alhadrami, Nawal D. Alqarni, Mohd Zahid Ansari
Summary: The tailoring and rational synthesis of metal-organic framework (MOF) with versatile nano/microarchitectures are of great academic interest due to their promising applications in advanced energy storage devices. A simple and cost-effective hydrothermal method was used to synthesize the carbon nanotubes (CNT) doped Cu-MOF, exhibiting astonishing power and energy density.
INORGANIC CHEMISTRY COMMUNICATIONS
(2024)