Results 91 to 100 of about 27,693 (363)
Molecules, 2019 The [3 + 2] cycloaddition (32CA) reaction of an α-santonin derivative, which has an exocyclic C⁻C double bond, with p-bromophenyl nitrile oxide yielding only one spiroisoxazoline, has been studied within the molecular electron density theory ...
Luis R. Domingo +2 more
doaj +1 more source
Laser‐Induced Plasma Effects on Bond Breaking in High‐Density Polyethylene Pyrolysis
Advanced Materials Interfaces, EarlyView.This study introduces a novel application of Laser‐Induced Breakdown Spectroscopy (LIBS) for bond breaking in high‐density polyethylene (HDPE), an area previously unexplored in laser‐plastic interactions. For the first time, a numerical model has been developed to differentiate between photon‐induced and laser field‐induced plasma, demonstrating the ...
Rao Adeel Un Nabi +5 more
wiley +1 more source
Solution‐Processable Polymer Nanocomposites for Electromagnetic Interference Shielding
Advanced Materials Interfaces, EarlyView.This review introduces scalable strategies for fabricating solution‐processable polymer nanocomposites with improved electromagnetic interference (EMI) shielding performance. It compares three fabrication methods, including solution blending, in situ polymerization, and Pickering emulsion polymerization, and highlights their respective advantages in ...
Tuan Sang Tran +3 more
wiley +1 more source
Asymmetric Lewis acid-catalyzed 1,3-dipolar cycloadditions [PDF]
, 2017 Highly tuned, one-point binding chiral iron and ruthenium complexes selectively coordinate and activate α,β-unsaturated aldehydes and ketones toward asymmetric catalytic Diels-Alder cycloaddition reactions.
Brinkmann, Yasmin +3 more
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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 +3 more
doaj +3 more sources
Advanced Synthesis &Catalysis, EarlyView.Abstract Pd‐catalyzed reactions are among the most straightforward and efficient methods to proficiently build Csp2‐Csp2 bonds. Nevertheless, thermal activation remains mandatory in most cases, which may decrease the compatibility with sensitive functional groups.
Jenifer Sharshonov +7 more
wiley +1 more source
Cycloaddition reactions of nitrosoalkenes, azoalkenes and nitrile oxides mediated by hydrotalcite [PDF]
, 2012 Mg:Al 3:1 hydrotalcite (Ht), used in catalytic quantities, promotes the generation of nitrosoalkenes, azoalkenes and nitrile oxides. These can be intercepted in situ by heterocycles and olefins in [4+2] and [3+2] cycloaddition reactions, producing ...
Lemos, A., Lourenço, J. P.
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Modified and unmodified zinc oxide as coagent in elastomer compounds [PDF]
, 2014 The aim of this work was to study the activity of unmodifi ed and modifi ed ZnO in the peroxide crosslinking of hydrogenated acrylonitrile-butadiene elastomer (HNBR) and ethylene-propylene copolymer (EPM).
Jesionowski, Teofil +3 more
core +1 more source
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
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 +2 more
doaj +1 more source