Synthetic derivative
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This study presents the adsorption process of methylene blue and other organic pigments in water samples using synthetic materials derived from agricultural waste combined with Fe3O4. The properties of the materials were determined through Fourier transform infrared spectroscopy, scanning electron microscopy, X-ray diffraction, and nitrogen adsorption-desorption isotherm.
10p dianmotminh02 03-05-2024 3 1 Download
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In addition, this γ-lactam heterocyclic ring also exists in synthetic medicinal compounds. In this manuscript, multi-component reactions (MCRs) were applied to synthesize three 1,5- disubstituted-4-ethoxycarbonyl-3-hydroxy-3-pyrroline-2-ones containing nitro group from aromatic aldehydes, 4-nitroaniline and sodium diethyl oxalacetate in absolute ethanol.
6p viohoyo 25-04-2024 9 2 Download
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Ebook "The chemistry of benzotriazole derivatives: A tribute to Alan Roy Katritzky" provides readers with contents including: preparation, reactivity, and synthetic utility of simple benzotriazole derivatives; benzotriazole-based strategies toward peptidomimetics, conjugates, and other peptide derivatives; benzotriazole-mediated synthesis of oxygen-containing heterocycles; benzotriazole-mediated synthesis of nitrogen-containing heterocycles;...
298p tracanhphuonghoa1007 22-04-2024 3 3 Download
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Part 1 book "Chemical process technology" includes content: Introduction, the chemical industry, processes in the oil refinery, production of light alkenes, production of synthesis gas, bulk chemicals and synthetic fuels derived from synthesis gas, processes for the conversion of biomass.
263p muasambanhan09 16-03-2024 3 2 Download
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In ebook "Carbohydrates in sustainable development II: A mine for functional molecules and materials (Topics in current chemistry, Volume 295)" a survey on the state of the art of ionic liquids derived from sugars is also presented. Synthetic polymers can now be made based on carbohydrate building blocks. The potential of these biocompatible and biodegradable macromolecular materials to replace the polluting petroleum-based polymers is also discussed.
211p manmanthanhla0201 26-02-2024 8 1 Download
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Using amino acids for synthesis of heterocycles is a synthetically promising field. However, developing the practical methods for transformations of amino acids into heterocycles is still challenging. Given that alpha amino acids are abundant or easily prepared, herein we report a method for annulation of benzylic C-H bonds in derivatives of 2-phenylglycine with 1-(2-nitroaryl) pyrroles.
3p vimichaelfaraday 28-12-2023 8 3 Download
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Part 1 of ebook "Introduction to derivative financial instruments: Options, futures, forwards, swaps, and hedging" provides readers with contents including: innovation in finance through derivative instruments; beware of assumed exposure and illiquidity; liquidity, solvency, and derivatives exposure;...
166p tuongnhuoclan 27-11-2023 8 4 Download
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Currently, great strides have been made in the field of creating highly effective synthetic medical preparations. Nevertheless, preparations derived from plant raw materials occupy a significant place in medical practice and account for about one third of the total number of medicines.
6p viisac 23-09-2023 3 1 Download
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Zeolite is a material based on aluminum and silicate of the alkaline or the alkaline earth metals. Currently there are several hundred types of zeolite derived from natural or synthetic sources.
6p viargus 03-03-2023 5 2 Download
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Transfer ribonucleic acids (tRNAs) serve not only as amino acid carriers during translation but also as a template for the biogenesis of short fragments that can regulate gene expression. Despite recent progress in the function of tRNA-derived fragments (tRFs), their intracellular localization, protein partners, and role in regulating translation are not well understood. We used synthetic tRFs to investigate their localization and function in Drosophila S2 cells.
11p lyhuyenthu 31-01-2023 8 2 Download
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Herbicide tolerance is an important trait that allows effective weed management in wheat crops. Genetic knowledge of metribuzin tolerance in wheat is needed to develop new cultivars for the industry. Here, we evaluated metribuzin tolerance in a recombinant inbred line (RIL) mapping population derived from Synthetic W7984 and Opata 85 over two consecutive years to identify quantitative trait loci (QTL) contributing to the trait.
11p vihagrid 30-01-2023 8 3 Download
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New psychoactive substances (NPS) continue to emerge in the drug market every year, becoming a global threat to public health and safety. These compounds are mostly synthetic cannabinoids and designer cathinones. However, synthetic opioids have appeared on the recreational drug markets in recent years, particularly fentanyl and its derivatives (“fentanyls”).
11p viginny 23-12-2022 10 3 Download
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In this article, we introduce a new calculation method to determine the vertical derivative of gravity anomaly giving higher stable and accurate than traditional methods. The method is verified on synthetic model data and actual data of the Southwest sub-basin of the East Vietnam Sea.
10p vipagani 24-10-2022 9 2 Download
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Inhalation of TIP peptides that mimic the lectin-like domain of TNF-α is a novel approach to attenuate pulmonary oedema on the threshold to clinical application. A placebo-controlled porcine model of acute respiratory distress syndrome (ARDS) demonstrated a reduced thermodilution-derived extravascular lung water index (EVLWI) and improved gas exchange through TIP peptide inhalation within three hours.
8p viisaacnewton 26-04-2022 9 1 Download
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Isatin, 1H -indoline-2,3-dione, an endogenous compound, is also a synthetically versatile molecule that possesses a diversity of biological activities including anticonvulsant, antibacterial, antifungal, antiviral, anticancer, and cytotoxic properties. Based on the promising cytotoxic activity studies on N -substituted isatin derivatives, a series of 18 derivatives of 2-(2,3-dioxo-2,3-dihydro-1H -indol-1-yl)-N -phenylacetamide were designed, synthesized, and characterized according to their analytical and spectral data.
9p langthannam 29-12-2021 12 1 Download
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We hereby report a new method for preparation of 3,4-dihydroquinolin-2(2H) -one starting from the methyl 2-(2-carboxyethyl)benzoic acid. The acid functionality, adjacent to the methylene, was regiospecifically converted to the desired methyl ester and the remaining acid functionality was transferred into acyl azide. Curtius rearrangement of acyl azide followed by trapping with aniline and alcohols provided the corresponding urea and urethane derivatives.
8p langthannam 29-12-2021 6 0 Download
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A simple and efficient method for the synthesis of 6-aryl-3-oxo-2,3-dihydropyridazine-4-carbohydrazide derivatives was developed. The synthesis was achieved via one-pot multicomponent reaction of arylglyoxals, dialkylmalonates, and hydrazine hydrate in pyridine at room temperature. This procedure features high regioselectivity, generally good to excellent yields, the use of easily available starting materials, and operational simplicity. This chemistry provides an efficient and promising synthetic strategy for diversity-oriented construction of the 6-arylpyridazinone skeleton.
10p langthannam 29-12-2021 12 0 Download
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This review article represents a survey covering the synthetic strategies leading to 5-membered heterocycles. The reactions are subdivided into groups that cover the synthetic methods of those heterocycles, i.e. pyrroles, furans, thiophenes, pyrazoles, isoxazoles, thiazoles, and others, utilizing benzoylacetonitriles as starting precursor from 1985 up to the present. The reactions are subdivided into groups that cover the synthetic methods for those heterocycles from benzoylacetonitriles.
27p langthannam 29-12-2021 8 0 Download
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Zinc oxide nanowires (ZnO NWs) were prepared and characterized by scanning electron microscopy, powder X-ray diffraction, and transmission electron microscopy analyses. ZnO NWs were then employed as heterogeneous and recyclable catalyst for green synthesis of some new and known bispyrazole derivatives through a tandem Knoevenagel and Michael type addition reaction of aromatic aldehyde and pyrazolone. The synthetic method is operationally simple and affords product with high yields in short reaction times.
9p langthannam 29-12-2021 7 1 Download
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We have developed a simple synthetic methodology for bis-spirocycles and spiroindole derivatives starting with a commercially available 6-bromo-2-tetralone. Here, we have used Fischer indolization, ring-closing metathesis, and Suzuki–Miyaura cross-coupling as key steps to assemble a variety of spirocyclic frameworks. The methodology developed here is simple and it may be useful to prepare various spirocycles containing indole moiety.
9p langthannam 29-12-2021 6 0 Download