Search results for "Oxide"

showing 10 items of 6424 documents

Conversion of Xylose to Furfural over Lignin-Based Activated Carbon-Supported Iron Catalysts

2020

In this study, conversion of xylose to furfural was studied using lignin-based activated carbon-supported iron catalysts. First, three activated carbon supports were prepared from hydrolysis lignin with different activation methods. The supports were modified with different metal precursors and metal concentrations into five iron catalysts. The prepared catalysts were studied in furfural production from xylose using different reaction temperatures and times. The best results were achieved with a 4 wt% iron-containing catalyst, 5Fe-ACs, which produced a 57% furfural yield, 92% xylose conversion and 65% reaction selectivity at 170 &deg

carbon-supported catalystIron oxidebiokemikaalitXylose010402 general chemistryFurfurallcsh:Chemical technology01 natural sciencesCatalysisCatalysislcsh:Chemistrychemistry.chemical_compoundHydrolysiskatalyytitironmedicineLigninlcsh:TP1-1185Physical and Theoretical Chemistryksyloosi010405 organic chemistryheterogeneous catalystsfurfuraalifurfural0104 chemical scienceschemistrylcsh:QD1-999katalyysiYield (chemistry)xylose conversionActivated carbonmedicine.drugNuclear chemistryCatalysts
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Chemical composition and antimicrobial activity of the essential oil ofPhlomis ferruginea Ten. (Lamiaceae) growing wild in Southern Italy

2006

The essential oil of aerial parts of Phlomis ferruginea (Lamiaceae), growing wild in Southern Italy, was obtained by hydrodistillation and analysed by GC and GC–MS. 60 compounds, representing 92.3% of the oil, were identified. The major components were β-caryophyllene (15.6%), hexadecanoic acid (12.8%), germacrene D (8.9%), caryophyllene oxide (6.7%) and α-thujone (5.5%). The evaluation of antimicrobial activity against some bacterial species has been tested. Copyright © 2006 John Wiley & Sons, Ltd.

caryophyllene oxideessential oilalpha-thujonelaw.inventionSteam distillationchemistry.chemical_compoundlawgermacrene DBotanyhexadecanoic acidThujoneEssential oilbeta-caryophylleneLamiaceaeantimicrobial activitybiologyChemistryCaryophylleneGeneral Chemistrybiology.organism_classificationAntimicrobialPhlomisSaturated fatty acidLamiaceaePhlomis ferrugineaFood ScienceFlavour and Fragrance Journal
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A general diastereoselective synthesis of highly functionalized ferrocenyl ambiphiles enabled on a large scale by electrochemical purification

2017

International audience; A general synthesis of highly functionalized ferrocenes, which include (P,B)- and (N,B)-ambiphiles, has been developed at a multigram scale. Diastereoselective stepwise modification of di-tert-butylated ferrocenes included the unprecedented separation of electroactive species. Bulky alkyl groups on ferrocenes ensure planar chirality of ambiphiles and enforce closer proximity of antagonist Lewis functions.

catalytic applicationsPlanar chirality010402 general chemistryElectrochemistrycarbon-dioxide01 natural sciences[ CHIM ] Chemical SciencesCatalysisMaterials ChemistryOrganic chemistry[CHIM]Chemical Sciences[CHIM.COOR]Chemical Sciences/Coordination chemistryfree hydrogen activationaryl bromidesAlkylchemistry.chemical_classificationcomplexes010405 organic chemistryChemistryligandsdirect arylationMetals and AlloysGeneral ChemistrypalladiumCombinatorial chemistry0104 chemical sciencesSurfaces Coatings and FilmsElectronic Optical and Magnetic Materialsfrustrated lewis pairsCeramics and Compositescoordination chemistry
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CCDC 825207: Experimental Crystal Structure Determination

2012

Related Article: J.Ferrando-Soria, D.Cangussu, M.Eslava, Y.Journaux, R.Lescouezec, M.Julve, F.Lloret, J.Pasan, C.Ruiz-Perez, E.Lhotel, C.Paulsen, E.Pardo|2011|Chem.-Eur.J.|17|12482|doi:10.1002/chem.201101459

catena-((mu3-(M)-22'-bis([carboxylato(oxidanidyl)methylidene]amino)-11'-binaphthalene)-tris(dimethyl sulfoxide)-copper(ii)-manganese(ii) dimethyl sulfoxide solvate trihydrate)Space GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 854782: Experimental Crystal Structure Determination

2013

Related Article: L.M.Toma, C.Ruiz-Perez, J.Pasan, W.Wernsdorfer, F.Lloret, M.Julve|2012|J.Am.Chem.Soc.|134|15265|doi:10.1021/ja307042z

catena-((mu~2~-12-bis(4-pyridyl)ethane NN'-dioxide)-tetrakis(mu~2~-cyanido)-tetracyanido-bis(44'-dimethyl-22'-bipyridine)-cobalt(ii)-di-iron(iii) dihydrate)Space GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 838957: Experimental Crystal Structure Determination

2012

Related Article: J.Ferrando-Soria, M.T.M.Rood, M.Julve, F.Lloret, Y.Journaux, J.Pasan, C.Ruiz-Perez, O.Fabelo, E.Pardo|2012|CrystEngComm|14|761|doi:10.1039/c1ce06203d

catena-(bis(tetra-n-butylammonium) tetrakis(mu~2~-2-([carboxylato(oxidanidyl)methylidene]amino)-13-dimethylbenzene)-di-copper(ii)-strontium(ii) dimethyl sulfoxide solvate)Space GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 1457099: Experimental Crystal Structure Determination

2016

Related Article: Javier López-Cabrelles, Guillermo Mínguez Espallargas and Eugenio Coronado|2016|Polymers|8|171|doi:10.3390/polym8050171

catena-(tetracosakis(mu-44'-bipyridinium-NN'-dioxide)-hexa-gadolinium hexakis(tridecakis(mu-oxo)-hexaoxo-hexa-tungsten) hexakis(trifluoromethanesulfonate) unknown solvate)Space GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 1457101: Experimental Crystal Structure Determination

2016

Related Article: Javier López-Cabrelles, Guillermo Mínguez Espallargas and Eugenio Coronado|2016|Polymers|8|171|doi:10.3390/polym8050171

catena-(tetracosakis(mu-44'-bipyridinium-NN'-dioxide)-hexa-gadolinium tridecakis(mu-oxo)-hexaoxo-hexa-tungsten tris(tetrachloro-gold) hexachloride unknown solvate)Space GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 1042615: Experimental Crystal Structure Determination

2015

Related Article: Tania Romero-Morcillo, Noelia De la Pinta, Lorena M. Callejo, Lucía Piñeiro-López, M. Carmen Muñoz, Gotzon Madariaga, Sacramento Ferrer, Tomasz Breczewski, Roberto Cortés, José A. Real|2015|Chem.-Eur.J.|21|12112|doi:10.1002/chem.201500310

catena-[bis(mu-44'-ethene-12-diyldipyridine)-diisothiocyanato-iron dimethyl sulfoxide solvate trihydrate]Space GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 1042614: Experimental Crystal Structure Determination

2015

Related Article: Tania Romero-Morcillo, Noelia De la Pinta, Lorena M. Callejo, Lucía Piñeiro-López, M. Carmen Muñoz, Gotzon Madariaga, Sacramento Ferrer, Tomasz Breczewski, Roberto Cortés, José A. Real|2015|Chem.-Eur.J.|21|12112|doi:10.1002/chem.201500310

catena-[bis(mu-44'-ethene-12-diyldipyridine)-diisothiocyanato-iron dimethyl sulfoxide solvate trihydrate]Space GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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