Results 71 to 80 of about 2,082 (291)

Catalyst-free synthesis of substituted benzimidazoles and benzothiazoles in a sustainable solvent

Tetrahedron Green Chem
A catalyst-free synthesis of various 2-alkyl or aryl-substituted benzothiazoles and benzimidazoles has been developed at room temperature by simply combining alkyl or arylaldehydes with ortho-phenylenediamines and 2-aminothiophenols, respectively.
R. Bernadett Vlocskó, Manisha Mishra, A. Ioana Stoica, Leila Gustin, Béla Török   +4 more
doaj   +1 more source

Synthesis of N,N'-bis and N,N,N',N'-tetra-[3,5-disubstituted-1-pyrazolyl)methyl]para-phenylenediamines: New Candidate Ligands for Metal Complex Wires.

, 2006
International audienceA series of tridentate ligands N,N-bis-[(di-substituted-1-pyrazolyl)methyl]arylamines 2–3a,b and benzylamine 4a,b, tetradentate N,N′-bis-[(di-substituted-1-pyrazolyl)methyl]para-phenylenediamines 7a,b and hexadentate N,N,N′,N′-tetra-
Launay, Jean-Pierre, Ben Hadda, T., Daoudi, M., Ben Larbi, N., Dixneuf, Pierre H., Bonvoisin, Jacques, Bennani, Bruno, Kerbal, A.   +7 more
core   +1 more source

Donor–Acceptor Covalent Organic Framework Enables Ambipolar Charge Storage in Aluminum‐Ion Energy Storage

Advanced Energy Materials, EarlyView.
A donor–acceptor covalent organic framework is designed as an ambipolar cathode for aluminum‐ion energy storage. The crystalline, microporous architecture enables intrinsic charge transport without conductive additives. Multi‐electron redox activity at donor and acceptor sites supports high capacity, excellent stability, and efficient reversible ...
Cataldo Valentini, Verónica Montes‐García, Wojciech Kukułka, Saira Sarwar, Michał Bielejewski, Mateusz Wlazło, Rossella Greco, Viktorija Pankratova, Ignacio Pérez‐Juste, Dawid Pakulski, Paolo Samorì, Artur Ciesielski   +11 more
wiley   +1 more source

Redox Potential Inversion by Ionic Hydrogen Bonding between Phenylenediamines and Pyridines

, 2016
In electrochemical oxidations, the second oxidation potential of phenylenediamines (PD) varies because of hydrogen-bonding formation for PD+• with pyridines.
Kuo Yuan Chiu (1638592), Wan-Chi Hsu (2194942), Shih-Hua Lu (2194948), Yuhlong Oliver Su (1638601), Yi-Chun Chung (2194945), Yi-Jung Tu (1549633)   +5 more
core   +1 more source

Guidelines for Detecting the Foodborne Antibiotic‐Resistant Bacteria

AgriFood: Journal of Agricultural Products for Food, EarlyView.
ABSTRACT Foodborne antibiotic‐resistant bacteria threaten global public health and the economic. Standardized detection methods are crucial for effective prevention and control. Researchers encounter difficulties in choosing suitable techniques due to the variety of available approaches and the intricate nature of resistance mechanisms.
Yuanye Zeng, Fengxia Yang
wiley   +1 more source

Solvent-controlled stereodivergent synthesis of E- and Z-enamines via metal-free formal C(sp2)-H amination of α-substituted styrenes

Green Synthesis and Catalysis
C(sp2)-H amination represents an attractive approach for the synthesis of enamines, which is intrinsically associated with the challenge of controlling of stereochemistry and primarily relying on transition-metal catalysis.
Dangui Wang, Jinbei Yao, Wentao Zhang, Shuyue Zhang, Huaibin Yu, Laihu Peng, Weijun Yao, Zhifeng Dai, Guojiao Wu, Fangrui Zhong   +9 more
doaj   +1 more source

Strategy for Contiguous Tetramination of Cyclohexanones with o‑Phenylenediamines with Elemental Sulfur and DMSO

, 2019
The S8/DMSO combination was found to be an excellent oxidizing agent for ipso,α,β,γ-tetramination of cyclohexanones with two molecules of o-phenylenediamines in the presence of TFA as a catalyst.
Le Anh Nguyen (7139885), Thanh Binh Nguyen (1508308), Pascal Retailleau (1445848)   +2 more
core   +1 more source

Atomically precise metal cluster enzymes for pathological tissue regeneration

BMEMat, EarlyView.
Schematic illustration of atomically precise metal cluster enzymes (MCEs) for pathological tissue regeneration. Atomically precise MCEs can modulate biological processes, such as attenuation of inflammatory responses, eradication of bacterial pathogens, regulation of angiogenesis, and promotion of cell development.
Ziqiang Xiong, Zhifeng Shi, Mengqing Li, Jien Han, Haoyan Chen, Maofei Ran, Shaojian Zhong, Limin Ma, Chengyun Ning, Youzhun Fan, Zhenghua Tang, Peng Yu   +11 more
wiley   +1 more source

Synthesis of N,3,5-Substituted 1,4-Phenylenediamines

, 2020
Восстановлением N,3,5-замещенных 4-нитрозоанилинов гидразингидратом на Pd/C получены N-3,5-замещенные 1,4-фенилендиамины. Синтез N-((1-адамантил)метил)-3,5-замещенных 4-нитрозоанилинов впервые осуществлен конденсацией 2-гидроксимино-1,3-дикетонов с ...
Роот, Е.В., Root, Evgeniy V., Gavrilova, Natalya A., Семиченко, Е.С., Kositsyna, Anna S., Suboch, George A., Субоч, Г.А., Косицына, А.С., Гаврилова, Н.А., Semichenko, Elena S.   +9 more
core  

Engineering Biochar‐Derived Functional Materials for High‐Performance Supercapacitors: Design Principles, Mechanisms, and Scalable Strategies

Carbon Energy, EarlyView.
ABSTRACT Biochar has emerged as a useful and adaptable source of carbon for supercapacitor electrodes. Its value comes from the way biomass chemistry, thermal conversion, and activation conditions shape the resulting pore network, surface groups, and degree of carbon ordering.
Soumen Mandal, Avinash C. Mendhe, Mayna Roy, Neha S. Barse, Taejoon Park, Han‐Seung Lee, Haigun Lee   +6 more
wiley   +1 more source