Results 91 to 100 of about 2,975,483 (362)

One-step synthesis of differently bis-functionalized isoxazoles by cycloaddition of carbamoylnitrile oxide with β-keto esters [PDF]

, 2012
A new protocol for synthesizing different functionalized isoxazoles is provided. Carbamoylnitrile oxide generated from nitroisoxazolone underwent inverse electron-demand 1,3-dipolar cycloaddition with 1,3-dicarbonyl compounds in the presence of magnesium
975, 976, 977, 978, 979, 980, 981, 982, Ariga, Masahiro, Hirao, Shotaro, Ise, Yumiko, Kobiro, Kazuya, Nishiwaki, Nagatoshi, Nishizawa, Maho, Saigo, Kazuhiko, Sawayama, Jun   +15 more
core   +1 more source

Designing Thermally Compatible Template‐Coating Pairs Toward Dimensionally Stable 3D Porous Carbons with Tunable Density

Advanced Functional Materials, EarlyView.
3D porous carbons with tunable density are crucial for energy storage, separations, and load‐bearing applications; however, their fabrication is often constrained by shrinkage during pyrolysis. This study optimizes and demonstrates the versatility of a template–coating pair strategy, producing materials that largely retain their shape and hierarchical ...
Adarsh Suresh, Manuela Campos, Kendrick Xie, Elektra Makris, Jonah Lovejoy, Maya El Shamsy, Chong Liu, Stuart J Rowan   +7 more
wiley   +1 more source

Cu(OH)x: Clay Catalyst Promoted Synthesis of 4,5-dihydro-1,2,4-oxadiazole at Room Temperature

Orbital: The Electronic Journal of Chemistry, 2017
An easy and efficient scheme is described designed for the preparation of 4,5-dihydro-1,2,4-oxadiazole using recyclable Cu(OH)x-Clay heterogeneous catalyst at room temperature.
Bashir Ahmad Dar, Zahed Zaheer, Samreen Fatema, Mazahar Farooqui   +3 more
doaj   +3 more sources

Reactions of 1,2,4‐Oxadiazole[4,5‐a]piridinium Salts with Alcohols: the Synthesis of Alkoxybutadienyl 1,2,4‐Oxadiazoles

ChemistryOpen, 2020
1,2,4‐Oxadiazole[4,5‐a]piridinium salts add alcohols and alkoxides to undergo electrocyclic ring opening affording alkoxybutadienyl 1,2,4‐oxadiazole derivatives.
Dr. Mattia Moiola, Dr. Marco Leusciatti, Prof. Dr. Paolo Quadrelli   +2 more
doaj   +1 more source

Dual‐Surface Reaction Enabled Organic–Inorganic Hybrid Photodiodes for Faint Light Detection and Imaging

Advanced Functional Materials, EarlyView.
This work proposes a dual‐surface reaction strategy to optimize the interfacial contacts in organic–inorganic photodetectors. 1,4,5,8,9,11‐hexaazatriphenylene hexacarbonitrile (HAT‐CN) and ytterbium layers are designed to react with the Si surface, thus minimizing noise.
Yibo Zhang, Gloria Vytas, Haozhe Wang, Dehui Zhang, Jiabao Shen, Chengliang Mao, Rajiv Prinja, Ali Javey, Zheng‐Hong Lu, Nazir P. Kherani   +9 more
wiley   +1 more source

Introduction of an isoxazoline unit to the β-position of porphyrin via regioselective 1,3-dipolar cycloaddition reaction

Beilstein Journal of Organic Chemistry, 2019
Isoxazoline-linked porphyrins have been synthesized by a regioselective 1,3-dipolar cycloaddition reaction between vinylporphyrin 2 and nitrile oxides. The steric interaction directed the reaction trajectory, in which only the product with a link between
Xiujun Liu, Xiang Ma, Yaqing Feng
doaj   +1 more source

Advanced supersonic technology fuel tank sealants [PDF]

Status of the fuel tank simulation and YF-12A flight tests utilizing a fluorosilicone sealant is described. New elastomer sealant development is detailed, and comparisons of high and low temperature characteristics are made to baseline fluorosilicone ...
Parker, J. A., Rosser, R. W.
core   +1 more source

Durable Physically Mixed Microporous and Mesoporous MOFs/Nanofiber Aerogel 3D Composites for Effective Toxic Gas Capture and Organophosphonate Detoxification

Advanced Functional Materials, EarlyView.
Ultralight 3D nanofibrous aerogels embedded with metal‐organic frameworks effectively capture and neutralize toxic gases and organophosphonates. Incorporating mesoporous UiO‐66‐NH2 and HKUST‐1 into PAN/PVP fibers enables high MOF loading while maintaining mechanical strength and structural stability.
Mai O. Abdelmigeed, Muhammed Ziauddin Ahmad Ebrahim, John J. Mahle, Brandon B. Blount, Gregory W. Peterson, Saad A. Khan, Gregory N. Parsons   +6 more
wiley   +1 more source

Synthesis of 1,2,3-Triazole 5-Chloroisatin Derivatives via Copper-Catalyzed 1,3-Dipolar Cycloaddition Reactions [PDF]

, 2017
A facile and simple protocol for the ‘Click\u27 cycloaddition of organic azides with N-propargylchloroisatine catalyzed by CuI, produces in good yields novel of 1,4-disubstituted 1,2,3-triazoles were obtained.
Rodi, Y. K. (Y), Senhaji, O. (O), Skalli, M. K. (M), Tribak, Z. (Z)   +3 more
core   +1 more source

Synergistic Fluorine and Cyanide Co‐Modification to Reinforce Photoinduced Excitons Formation and Transfer for Efficient CO2 Photoreduction

Advanced Functional Materials, EarlyView.
An advanced F‐doped and ─CN group co‐modified FCCN is developed. Due to the synergistic effects of co‐modification in promoting photogenerated exciton generation, enhancing charge kinetics, expanding active interfacial areas, and optimizing CO2 interfacial reactions, the FCCN photocatalyst demonstrates excellent catalytic performance and high ...
Sheng‐Qi Guo, Qingqing Dong, Xiaodong Sun, Ziqi Zhang, Linda Wang, Lei Bao, Bozhan Li, Hui Li, Yanrui Li, Tianyi Ma   +9 more
wiley   +1 more source