Results 41 to 50 of about 29,164 (249)
Gold Nanoparticle-Catalyzed Environmentally Benign Deoxygenation of Epoxides to Alkenes
Molecules, 2011 We have developed a highly efficient and green catalytic deoxygenation of epoxides to alkenes using gold nanoparticles (NPs) supported on hydrotalcite [HT: Mg6Al2CO3(OH)16] (Au/HT) with alcohols, CO/H2O or H2 as the reducing reagent.
Kiyotomi Kaneda +4 more
doaj +1 more source
Nature Communications, 2021 Furanocembranoid-like natural products with the alkene-substituted furan scaffold display a range of biological activities, but are difficult to access. Here, the authors report a modular biomimetic strategy to synthesise diverse alkene-substituted furan-
Jiping Hao +9 more
doaj +1 more source
Advanced Materials, EarlyView.Extracellular vesicles (EVs) are cell‐derived nanoparticles that mediate intercellular communication through their dynamic biointerfaces. Owing to their intrinsic biological functions, EVs have emerged as promising platforms for biomedical applications.
Leila Pourtalebi Jahromi +3 more
wiley +1 more source
N,N- and N,O-Bidentate-Chelation-Assisted Alkenyl C–H Functionalization
MoleculesChelation-assisted olefinic C–H functionalization has been demonstrated to be a powerful method of constructing multi-substituted alkenes from simpler ones.
Yawei Zhang +6 more
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Pauson–Khand reaction of fluorinated compounds
Beilstein Journal of Organic Chemistry, 2020 The Pauson–Khand reaction (PKR) is one of the key methods for the construction of cyclopentenone derivatives, which can in turn undergo diverse chemical transformations to yield more complex biologically active molecules.
Jorge Escorihuela +5 more
doaj +1 more source
Palladium-catalyzed regio- and enantioselective migratory allylic C(sp3)-H functionalization
Nature Communications, 2021 Alkene isomerizations and asymmetric C–H functionalizations have been independently studied, but their combination in one protocol is uncommon. Here the authors show a palladium-catalyzed method to iteratively “walk” a terminal alkene along a carbon ...
Ye-Wei Chen +4 more
doaj +1 more source
A Study of Alkene Disulfonoxylation
Medicinal Chemistry ResearchWe have developed convenient protocols for alkene disulfonoxylation, which involve stirring alkene substrate with a commercial I(III) oxidant and sulfonic acid in CH2Cl2 at ambient temperature. The reactions can be performed open to air without any special precautions to exclude moisture and, in most cases, deliver the products of vicinal ...
Shyam Sathyamoorthi, Steven P. Kelley
openaire +2 more sources
Advanced Materials, EarlyView.Sub‐stoichiometric amounts of Na+ or K+ enhance defect healing during Silicalite‐1 (MFI) and TS‐1 calcination by promoting Si–O–Si annealing and healing framework vacancies. The resulting defect‐free zeolites are more hydrophobic and show improved butanol/water separation and improved activity and selectivity in the epoxidation of 1‐hexene, offering a ...
Christos Kanteler +14 more
wiley +1 more source
Electrochemistry-assisted selective butadiene hydrogenation with water
Nature Communications, 2023 Alkene feedstocks are used to produce polymers with a market expected to reach 128.4 million metric tons by 2027. Butadiene is one of the impurities poisoning alkene polymerization catalysts and is usually removed by thermocatalytic selective ...
Yong-Qing Yan +5 more
doaj +1 more source
Fabrication of Fibers With Complex Features Using Thermal Drawing of 3D‐Printed Preforms
Advanced Materials Technologies, EarlyView.3D printing enables rapid fabrication of macroscale polymer preforms with complex geometries. Thermal drawing then scales these structures into long fibers while preserving micron‐scale cross‐sectional features. This workflow provides a fast, low‐cost route to functional fibers with tailored geometries and material combinations for catheter, robotic ...
Ali Anil Demircali +4 more
wiley +1 more source