bluuebunny/crossref_metadata_2025_split huggingface dataset:
A Facile Total Synthesis of (±)‐Acoragermacrone by Titanium‐Induced Keto Ester Cyclization
Authors: Li Weidong , Li Ying , Li Yulin 
Published: September 2010

Abstract(±)‐Acoragermacrone, a natural occurring germacrane‐type sesquiterpenoid, was synthesized from geranyl acetate via eight steps by employing titanium‐induced intramolecular keto α,β‐unsaturated ester coupling as key step.
Resolution of Ternary Mixture of Tartrazine, Quinoline Yellow and Sunset Yellow by Derivative Spectrophotometry and Ratio Spectra Derivative
Authors: Berzas Nevado J. J. , Flores J. Rodríguez , Villaseñor Llerena M. J. 
Published: September 2010

AbstractTwo methods for determining the colorants Tartrazine (E‐102), Quinoline Yellow (E‐104) and Sunset Yellow (E‐110) in mixtures are described. As first method was used the second derivative spectrophotometry with measurement in the “zero‐crossing” wavelengths. The second method, called “ratio spectrum zero crossing derivative”, is based on the simultaneous use of the first derivative of ratio spectra and measurements at “zero‐crossing” wavelengths. The two described procedures do not require any separation step. The calibrations graphs are linear up to 20 μg/mL for Tartrazine, 40 μg/mL for Sunset Yellow and 24 μg/mL for Quinoline Yellow in both methods. The methods are applied to determine these compounds in three food commercial products.
Crystal Structure and Solid State Conformation of 5‐Hydroxy‐8,9‐Dioxo‐8,9‐Seco‐α‐Cholestan‐3β‐yl Acetate
Authors: Tinant B. , Declercq J. P. , Dabovic M. , Krstic N. , Lorenc Lj. , Mihailovic M. L. J. 
Published: September 2010

AbstractThe molecular structure of the title compound, which might be a possible intermediate in the synthesis of 5,10:8,9‐diseco‐steroids (=steroklastanes), was determined by X‐ray analysis. Hydrogen bonding between the 5α‐hydroxyl group and the 9‐oxo function attached to the ten‐membered ring, and the presence of two conformational forms of the side‐chain in the solid state structure of 2 are established.
Crystal structure of 4‐amino‐3‐(2‐benzothiophen) butyric acid, a baclofen analogue
Authors: Pirard B. , Evrard G. , Norberg B. , Berthelot P. , Vaccher C. , Debaert M. , Durant F. 
Published: September 2010

AbstractThe crystal structure of 4‐amino‐3‐(2‐benzothiophen) butyric acid is reported and compared with that of 4. amino‐3‐(2‐thiényl) butyric acid. For both molecules, the γ‐aminobutyric acid (GAB) chains show almost identical conformations. C12H13NO2S, Mw = 235.0, P2'1/c, a = 17.857(2), b = 5.183(1), c = 12.587(1) Å, β = 100.07(1)°, V = 1147.1 Å3, Z = 4, Dc = 1.363 gcm−3, λ Cu K α = 1.54178 Å, μ = 22.61 cm−1, F(000) = 496.0, T = 293 °K, R = 0.075 for 1103 observed reflections (I ≥ 2 σ(I)).
CONDENSATION METHYL‐2 INDOLE / NAPHTOQUINONE‐1,4. SYNTHESE DE LA PREMIERE DIINDOLYL‐2,3 NAPHTOQUINONE ‐1,4
Authors: Henrion Jean‐Christophe , Lion Claude , Jacquet Bernard , Hocquaux Michel , Barre Gilles 
Published: September 2010

AbstractAddition of two 2‐methyl indole residues to 1,4‐naphthoquinone leads to the unknown 2,3‐di‐(2‐methyl‐3‐indolyl)‐1,4‐naphthoquinone, first example of the new diindolylnaphthoquinone series.
N‐Aroyl‐N′‐Ferrocenecarbonylhydrazine complexes with transition metal(II)
Authors: Yong‐Min Liang , Xiao‐Li Wu , Zhong‐Lin Lu , Xian‐Min Li , Yong‐Xiang Ma 
Published: September 2010

AbstractTwo new ligands, N‐(2‐thiophenecarbonyl)‐N′‐ferrocenecarbonyl‐hydrazine (H2TF,C5H5‐FeC5H4CONHNHCOCCHCHCHS) and N‐(4‐methoxybenzoyl)‐N′‐ferrocenecarbonylhydrazine (H2MBF, C5H5,FeC5H4CONHNHCOC6H4OCH3‐p), and their complexes with some transition metals, M(TF) (MNi, Zn, Hg and Co) and M(MBF) (MMn, Co, Ni, Cu and Zn) have been synthesized and characterized by elemental analyses, UV, IR and NMR. The ligands are tetradentate and coordinate to central ion in enolic form.
A typology of the parameters influencing selectivity and activity in heterogeneous hydrogenation catalysis
Authors: Jannes G. , Puttemans J. P. 
Published: September 2010

AbstractThe various parameters that influence selectivity and activity in heterogeneous hydrogenation catalysis are classified, starting from the effects that are of the simplest physical nature to proceed to those that have a more pronounced chemical nature. Solvent effects, other soft interactions, support effects, site coordination and surface structure effects, electrostatic effects and electronic effects are discussed. Blurring the influence of one factor with another and synergisms have to be considered.
Determination of niobium in steel by flow injection spectrofluorimetric method
Authors: Ketai Wang , Xinguo Cheng , Xilin Liu , Zhide Hu 
Published: September 2010

AbstractA room temperature flow injection spectrofluorimetric method is presented for the determination of niobium(V), based on the use of morin in the presence of cetyltrimethylammonium bromide(CTAB). Various chemical and physical variables affecting the reaction in the flow system were evaluated. The proposed method is very sensitive, with a detection limit of 3.0 ng/ml and a linear calibration graph in the range 8.0 to 240.0 ng/ml. The sampling frequency is 60 h−1. The method has been successfully applied to the determination of niobium in steel samples.
Synthesis of new lipophilic ligands and NMR measurement of their critical micellar concentration (CMC)
Authors: Nguyen M. V. D. , Brik M. E. , Ouvrard B. N. , Courtieu J. , Nicolas L. , Gaudemer A. 
Published: September 2010

AbstractNew lipophilic ligands are synthesized to build potential Magnetic Resonance Imaging contrast agents (MRI). Using the evolution of 1H‐NMR chemical shifts δ with concentration of monomer in D2O, the critical micellar concentration (CMC) has been measured.
Synthesis of erythromycin related macrolides
Authors: Paesen Jos , Roets Eugène , Janssen Gerard , Busson Roger , Cachet Thierry , Hoogmartens Jos 
Published: September 2010

AbstractThe synthesis and characterization of a number of macrolides, structurally related with erythromycin, is described. These derivatives have been previously investigated for their ability to induce contractions and to displace bound motilin in rabbit duodenum.
Membranes de microfiltration en polyhydroxybutyrate et poly‐(hydroxybutyrate‐co‐hydroxyvalerate) ‐ formation ‐ influence du pourcentage d'unités hydroxyvalerate
Authors: Mas A. , Sledz J. , Schue F. 
Published: September 2010

AbstractFiltration properties and structure of polyhydroxybutyrate, poly(hydroxybutyrate‐co‐9% hydroxyvalerate) and poly(hydroxybutyrate‐co‐22% hydroxyvalerate) microfiltration membranes prepared by the inversion phase method are correlated with coagulation bath composition, non solvents percentages (% NS) (tetrahydrofuran, dimethylformamide, ethanol) and hydroxyvalerate contents (% HV). Ternary phase diagrams are discussed with respect to polymers solubility parameters and solvent‐non solvent mixtures solubility parameters just as phase separation occurs. The slow or rapid membranes formation was studied by comparing the initial solution composition to the binodal curve values. Volumic fluxes, selectivity and % NS variations were explained from this concept. Only the 9% HV copolymer presents a spherolitic structure which results from a larger cristallization velocity during this phase inversion method conditions.
Addition du méthylazide aux oléfines portant une double substitution activante geminée. Étude de la stabilité thermique des triazol‐1,2,3‐ines obtenues
Authors: Le Hetet G. , Danion‐Bougot R. , Carrié R. 
Published: September 2010

AbstractMethylazide reacts with alkenes bearing two electron‐withdrawing substituents on the same sp2 carbone and leads to corresponding 1,2,3‐triazolines with these substituents in 4 position. Thermolysis of these 1,2,3‐triazolines give cycloreversion (alkene+methylazide) and aziridines after extrusion of nitrogen. In the conditions of the thermolysis, aziridine carbone‐carbone bond breaks, leading to azomethine ylids that are trapped with alkenes and give pyrrolidines.
Synthèse de 2,3,4,4a,9,9a‐hexahydro‐1h‐indéno[1,2‐b]pyrazines, analogues rigides de 3‐méthyl‐2‐phénylpiperazines et antidépresseurs potentiels
Authors: Chahboun S. , Gelbcke M. , van de Vliedt G. , Smith D. F. 
Published: September 2010

AbstractThe synthesis of various diastereoisomeric (±) trans‐(VIII) and cis‐2,3,4,4a,9,9a‐hexahydro‐1H‐indeno[1,2‐b] pyrazines (IX) is described, using as key step for piperazine ring formation an alkoxyphosphonium salt. Compound VIIIa was prepared as a potential serotonin reuptake inhibitor.
First total synthesis of (±)‐(1E,3E,11E)‐cembra‐1,3,11‐trien‐6‐one
Authors: Li Jing , Yue Xiangiun , Li Ying , Hou Liming , Li Weidong , Li Yulin 
Published: September 2010

Abstract(±)‐(1E,3E,11E)‐Cembra‐1,3,11‐trien‐6‐one, an important marine cembrane ketone isolated from Eunicea calyculata, was first synthesized in 12 steps starting from citronellal.
Chemical Reduction and Dimerization of 1‐Chloro‐2,3,4,5‐tetraphenylborole
Authors: Braunschweig Holger , Chiu Ching‐Wen , Wahler Johannes , Radacki Krzysztof , Kupfer Thomas 
Published: September 2010

AbstractAs neutral isoelectronic analogues of the elusive cyclopentadienyl cation, boroles have been of interest for their prospective applications as strong Lewis acids, chromophores, and electron acceptors. Recently our group discovered a π‐nucleophilic boryl anion based on the borole system. In an effort to extend borole chemistry, we now report the molecular structure of 1‐chloro‐2,3,4,5‐tetraphenylborole (1) and its corresponding borole dianion resulting from the two‐electron reduction of 1 with KC8. The thermally induced dimerization of 1 yields an unprecedented boracyclohexadiene/borolene spiro‐bicyclic compound and the resulting dimer was fully characterized including a single‐crystal X‐ray analysis.
ChemInform Abstract: Calcium Substitution in the Y2Ba4Cu7O15+δ Superconducting Phase.
Authors: TRISCONE G. , FRANCOIS M. , GENOUD J.‐Y. , GRAF T. , JUNOD A. , OPAGISTE C. , MULLER J. 
Published: September 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Photoelectron Spectrum, Ionization Potential, and Heat of Formation of CCl2.
Authors: KOHN D. W. , ROBLES E. S. J. , LOGAN C. F. , CHEN P. 
Published: September 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Electronic Substituent and Amino Torsional Coupling Effects on Intramolecular Proton Tunneling in 5‐Aminotropolone
Authors: ENSMINGER F. A. , PLASSARD J. , ZWIER T. S. 
Published: September 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Hydrogen‐Bonding Effect on the Photophysical Properties of 7‐ Aminocoumarin Derivatives
Authors: LOPEZ ARBELOA T. , LOPEZ ARBELOA F. , TAPIA M. J. , LOPEZ ARBELOA I. 
Published: September 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Molecular Structure of N,N‐Dimethylformamide from Gas‐Phase Electron Diffraction.
Authors: SCHULTZ G. , HARGITTAI I. 
Published: September 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Chiral Vinylphosphine Oxides: Double Asymmetric Induction in the 1,3‐ Dipolar Cycloaddition to Chiral Nitrones. Kinetic Resolution of a Racemic Phospholene Oxide
Authors: BRANDI A. , CICCHI S. , GOTI A. , PIETRUSIEWICZ K. M. 
Published: September 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Stereoselective Protonation of Carbanions. Part 1. Diastereoselective Protonation of C‐H‐Activated Cyclohexane Derivatives.
Authors: GERLACH U. , HAUBENREICH T. , HUENIG S. , KEITA Y. 
Published: September 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Some Baeyer‐Villiger Oxidations Using a Monooxygenase Enzyme from Pseudomonas putida NCIMB 10007.
Authors: GROGAN G. , ROBERTS S. M. , WILLETTS A. J. 
Published: September 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Rearrangement of Alkynyl and Vinyl Carbenoids via the Rhodium(II)‐ Catalyzed Cyclization Reaction of α‐Diazo Ketones.
Authors: PADWA A. , AUSTIN D. J. , GAREAU Y. , KASSIR J. M. , XU S. L. 
Published: September 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Efficient Photochemical Transformation of Spiro(4.n)‐2,5‐diones to . gamma.‐Alkylidene‐γ‐butyrolactones: Its Relevance to Photostability of Fredericamycin A.
Authors: PANDEY B. , REDDY R. S. , KUMAR P. 
Published: September 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Crystal Structure and Magnetic Susceptibility of a Hydrocarbon Free Radical: Tris(3,5‐di‐tert‐butylphenyl)methyl.
Authors: KAHR B. , VAN ENGEN D. , GOPALAN P. 
Published: September 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Reactivity and Selectivity of the Methoxycarbonyl Cation in Gas‐Phase Electrophilic Aromatic Substitution
Authors: GIACOMELLO P. , PEPI F. 
Published: September 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Kinetics of the CHCl2 and CH2Cl Association Reactions with Molecular Oxygen Between 298 and 448 K and from 1 to 760 torr of Total Pressure
Authors: FENTER F. F. , LIGHTFOOT P. D. , CARALP F. , LESCLAUX R. , NIIRANEN J. T. , GUTMAN D. 
Published: September 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Rate Constants for the Addition of the Benzyl Radical to C60 in Solution.
Authors: WALBINER M. , FISCHER H. 
Published: September 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Electron‐Transfer Catalysis of Olefin Epoxidation with Nitrogen Dioxide (Dinitrogen Tetroxide).
Authors: BOSCH E. , KOCHI J. K. 
Published: September 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Substituent Modulation of Mild Fluorination of Aromatic Molecules with Cesium Fluoroxysulfate.
Authors: STAVBER S. , PLANINSEK Z. , KOSIR I. , ZUPAN M. 
Published: September 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Sulfenylation Reactions with Disulfides in the Presence of CCl4/Base.
Authors: HESSELBARTH F. , WENSCHUH E. 
Published: September 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: A Selective Synthesis of 3‐Alkynyl Perfluoroalkyl Ketones by the Trifluoroborane Etherate Mediated 1,4‐Addition Reaction of (1‐Alkynyl) diisopropoxyboranes to α,β‐Unsaturated Ketones.
Authors: TAKADA E. , HARA S. , SUZUKI A. 
Published: September 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: On the Reaction of Perfluoroalkyl Halides in the Presence of Alcohols and Bases.
Authors: MEINERT H. , KNOBLICH A. , MADER J. , BRUNE H. A. 
Published: September 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: ω‐Mono N‐Alkylation of Linear Tetraamines Through the Reaction of Aldehydes and Ketones on Their Tricarbonyl Chromium, Molybdenum, or Tungsten Complexes.
Authors: YAOUANC J.‐J. , LE BRIS N. , CLEMENT J.‐C. , HANDEL H. , DES ABBAYES H. 
Published: September 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: A Useful Synthesis of ω‐Iodoperfluoroalkanesulfonyl Fluorides and Perfluoroalkane‐α,ω‐bissulfonyl Fluorides.
Authors: QIU W. , BURTON D. J. 
Published: September 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Study on the α‐Sulfenylation of 3‐Sulfolenes.
Authors: CHOU T.‐S. , CHANG S.‐Y. 
Published: September 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Synthesis of 4‐Benzylpyrazoles (II) ‐ (IV), (VI), (VII) from Monobenzylmalononitrile (I).
Authors: ECHEVARRIA A. , ELGUERO J. 
Published: September 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: An Efficient Conversion of 2′‐Hydroxychalcones (I) to Flavones (II).
Authors: HANS N. , GROVER S. K. 
Published: September 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Pyrazolo(1,2‐a)‐1,2,3‐triazinium‐4‐olate.
Authors: BLAKE A. J. , MCNAB H. , MORROW M. , RATAJ H. 
Published: September 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Schmidt Reaction on 2‐Aryl‐1,2,3,4‐tetrahydro‐4‐quinolone.
Authors: TOEKES A. L. , LITKEI G. 
Published: September 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Tris(trimethylsilyl)silylamine and the Lithiated and Silylated Derivatives. X‐Ray Structure of the Dimeric Lithium Trimethylsilyl‐( tris(trimethylsilyl)silyl)amide.
Authors: WESTERHAUSEN M. , SCHWARZ W. 
Published: September 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.