نتایج جستجو برای: acetates salts
تعداد نتایج: 28651 فیلتر نتایج به سال:
Novel synthesis of diversely substituted 2-(furan-3-yl)acetates via palladium-catalyzed one-pot multi-component reactions of allenols, aryl iodides, alcohols, and carbon monoxide has been developed. Notably, the formation of the title compounds features a cascade process combining carbonylation of aryl iodide, alcohoxyl carbonylation of the in situ formed allyl palladium complex, and intramolec...
N-Arylisatins are synthesized in high yield in shorter reaction time by the reaction of 2-oxo2-(Arylamino)acetates and arynes using NaY heterogeneous catalyst under microwave irradiations.
Abstract In the present work, manganese cobaltite (MnCo 2 O 4 ) spinel (MCO) was synthetized by Pechini and hydrothermal method, characterized photocatalytically evaluated toward H production through water splitting under visible-light irradiation. Characterization consisted in Thermogravimetry analysis (TGA), X-ray diffraction (XRD), photoelectron spectroscopy, scattering transmission electron...
Chemical deicing plays a fundamental role for traffic safety on roads and runways in winter season. Traditional deicing chemicals, such as sodium chloride and urea have, however, undesirable effects on surface and ground waters. For more sustainable road and runway winter maintenance, easily biodegradable organic salts such as acetates and formates, have been proposed and taken into use. Next t...
Effects of calcium and magnesium acetates on the carcinogenicity of cadmium chloride in Wistar rats.
The effects of calcium and magnesium acetates on the formation of injection site and testicular tumors in male Wistar rats over 2 years following s.c. injections of cadmium chloride (CdCl2) were determined. The rats (25/group) received a single s.c. dose of CdCl2 (0.02 or 0.04 mmol/kg; 0.9% NaCl solutions). Calcium and magnesium acetates were administered as 3% dietary supplements for 2 weeks p...
We review some applications of copper derivatives as synthetic tools: stoichiometric organocopper reagents and organomagnesium derivatives in the presence of catalytic amounts of copper salts are able to give a regioselective addition on to acetylenic substrates and to alkylate alkyl or vinyl halides, bromohydrines, their tosylates and carboxylates, and a large variety of allylic substrates. IN...
A highly stereoselective desymmetrization reaction of δ,δ-diaryl-α-diazo-β-ketoesters catalyzed by chiral dirhodium carboxylates forms aromatic cycloaddition products in up to 97% ee.
A cuprous bromide-catalyzed heteroannulation reaction of [60]fullerene with ketoxime acetates has been exploited to prepare novel 1-fulleropyrrolines through the cleavage of N-O and C-H bonds and formation of C-C and C-N bonds under thermal conditions. A plausible mechanism for the formation of 1-fulleropyrrolines is proposed on the basis of the experimental results. The electrochemistry of the...
für Naturforschung in cooperation with the Max Planck Society for the Advancement of Science under a Creative Commons Attribution 4.0 International License. Dieses Werk wurde im Jahr 2013 vom Verlag Zeitschrift für Naturforschung in Zusammenarbeit mit der Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V. digitalisiert und unter folgender Lizenz veröffentlicht: Creative Commons Namen...
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