Search results for "Acetone"

showing 10 items of 350 documents

Species-Specific Antioxidant Power and Bioactive Properties of the Extracts Obtained from Wild Mediterranean Calendula Spp. (Asteraceae)

2019

In this study we focused on four taxa of the genus Calendula (C. maritima, C. suffruticosa subsp. fulgida, C. arvensis, and the hybrid between the first two ones), collected in Mediterranean area (Sicily). Six extracts for each species were obtained using solvents with increasing polarity (hexane, ethanol 80%, acetone 70%, and water) and through extraction by supercritical fluids (SFE). It has been observed that the solvent with the highest extraction efficiency was ethanol 80% for all species. However, SFE extracts showed high antioxidant activity comparable to the ethanol 80% extract (polyphenol, DPPH, and reducing power method). These findings were confirmed by in vitro analysis (MTT ass…

antioxidantAntioxidantDPPHmedicine.medical_treatmentcalendula specielcsh:Technology01 natural scienceslcsh:Chemistrystresschemistry.chemical_compoundSettore BIO/10 - BiochimicaGeneral Materials ScienceFood scienceSettore BIO/06 - Anatomia Comparata E CitologiaCalendulalcsh:QH301-705.5InstrumentationFluid Flow and Transfer Processes0303 health sciencesbiologyplantsGeneral EngineeringSupercritical fluid extractionlcsh:QC1-999Computer Science ApplicationsSolventantioxidantscalendula speciesopuntia-ficus-indica03 medical and health sciencesmedicineAcetoneby-productspolyphenols030304 developmental biologylcsh:TACLProcess Chemistry and TechnologyExtraction (chemistry)assaybiology.organism_classification0104 chemical sciences010404 medicinal & biomolecular chemistrylcsh:Biology (General)lcsh:QD1-999chemistrylcsh:TA1-2040PolyphenolbioactivitySettore BIO/03 - Botanica Ambientale E Applicataflavonoidsmarigoldsupercritical fluid extraction[SDE.BE]Environmental Sciences/Biodiversity and Ecologylcsh:Engineering (General). Civil engineering (General)lcsh:Physicsphenolic compositionApplied Sciences
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CCDC 270841: Experimental Crystal Structure Determination

2005

Related Article: J.-P.Costes, S.Shova, J.M.C.Juan, N.Suet|2005|Dalton Trans.||2830|doi:10.1039/b506102d

bis((mu~3~-2-Oxy-N-(((2-oxyphenyl)methylene)amino)-2-methylpropyl)benzamido)-dioxo-tetrakis(hexafluoroacetylacetonato)-bis(methanol)-di-gadolinium(iii)-di-vanadium(iv) acetone methanol solvateSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 1584240: Experimental Crystal Structure Determination

2018

Related Article: I. Casanova, M. L. Durán, J. Viqueira, A. Sousa-Pedrares, F. Zani, J. A. Real, J. A. García-Vázquez|2018|Dalton Trans.|47|4325|doi:10.1039/C8DT00532J

bis(mu-2-(611-dioxo-611-dihydroanthra[12-d]imidazol-1-id-2-yl)phenolato)-bis(110-phenanthroline)-di-cobalt(ii) acetone solvateSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 962935: Experimental Crystal Structure Determination

2014

Related Article: Ilya S. Krytchankou, Dmitry V. Krupenya, Antti J. Karttunen, Sergey P. Tunik, Tapani A. Pakkanen, Pi-Tai Chou, Igor O. Koshevoy|2014|Dalton Trans.|43|3383|doi:10.1039/C3DT52658E

bis(mu~3~-((Phenylphosphinediyl)bis(methylene))bis(diphenylphosphine))-hexakis(mu~2~-eta^2^-2-(1-hydroxycyclohexyl)ethynyl)-di-copper-hexa-gold bis(hexafluorophosphate) acetone dichloromethane unknown solvateSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 1856808: Experimental Crystal Structure Determination

2018

Related Article: Miguel Clemente Leon, Víctor García-López, Mario Palacios-Corella, Alexandre Abhervé, Isaac Pellicer-Carreño, Cédric Desplanches, Eugenio Coronado|2018|Dalton Trans.|47|16958|doi:10.1039/C8DT03511C

bis[26-bis(1H-pyrazol-1-yl)pyridine-4-carboxylic acid]-iron(ii) bis(hexafluoroantimonate) acetone solvateSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 1856811: Experimental Crystal Structure Determination

2018

Related Article: Miguel Clemente Leon, Víctor García-López, Mario Palacios-Corella, Alexandre Abhervé, Isaac Pellicer-Carreño, Cédric Desplanches, Eugenio Coronado|2018|Dalton Trans.|47|16958|doi:10.1039/C8DT03511C

bis[26-bis(1H-pyrazol-1-yl)pyridine-4-carboxylic acid]-iron(ii) bis(hexafluoroantimonate) acetone solvateSpace GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 1425262: Experimental Crystal Structure Determination

2016

Related Article: T. Mäkelä, K. Rissanen|2016|Dalton Trans.|45|6481|doi:10.1039/C6DT00414H

catena-((mu2-11'-(2356891112-Octahydro-1471013-benzopentaoxacyclopentadecine-1516-diyl)bis(3-(4-nitrophenyl)urea))-sodium iodide acetone solvate hemihydrate)Space GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 771545: Experimental Crystal Structure Determination

2011

Related Article: C.J.Adams, J.A.Real, R.E.Waddington|2010|CrystEngComm|12|3547|doi:10.1039/c0ce00149j

catena-(bis(mu~2~-44'-Bipyridine)-di-isothiocyanato-iron(ii) acetone solvate)Space GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 1944600: Experimental Crystal Structure Determination

2019

Related Article: Víctor García-López, Mario Palacios-Corella, Salvador Cardona-Serra, Miguel Clemente-León, Eugenio Coronado|2019|Chem.Commun.|55|12227|doi:10.1039/C9CC05988A

catena-[(mu-11'-(pyridine-26-diyl)bis(1H-pyrazole-4-carboxylato))-bis(11'-(pyridine-26-diyl)bis(1H-pyrazole-4-carboxylic acid))-perchlorato-di-iron bis(perchlorate) acetone solvate monohydrate]Space GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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Synthesis of α-aminonitriles using aliphatic nitriles, α-amino acids, and hexacyanoferrate as universally applicable non-toxic cyanide sources

2018

In cyanation reactions, the cyanide source is often directly added to the reaction mixture, which restricts the choice of conditions. The spatial separation of cyanide release and consumption offers higher flexibility instead. Such a setting was used for the cyanation of iminium ions with a variety of different easy-to-handle HCN sources such as hexacyanoferrate, acetonitrile or α-amino acids. The latter substrates were first converted to their corresponding nitriles through oxidative decarboxylation. While glycine directly furnishes HCN in the oxidation step, the aliphatic nitriles derived from α-substituted amino acids can be further converted into the corresponding cyanohydrins in an oxi…

chemistry.chemical_classification010405 organic chemistryCyanideIminiumCyanation010402 general chemistry01 natural sciencesPollution0104 chemical sciencesAmino acidchemistry.chemical_compoundchemistryGlycineEnvironmental ChemistryOrganic chemistryAcetonitrileOxidative decarboxylationAcetone cyanohydrinGreen Chemistry
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