bluuebunny/crossref_metadata_2025 huggingface dataset:
Gradient theory for plasticity via homogenization of discrete dislocations
Authors: Garroni Adriana , Leoni Giovanni , Ponsiglione Marcello
Published: August 2010

We deduce a macroscopic strain gradient theory for plasticity from a model of discrete dislocations.

We restrict our analysis to the case of a cylindrical symmetry for the crystal under study, so that the mathematical formulation will involve a two-dimensional variational problem.

The dislocations are introduced as point topological defects of the strain fields, for which we compute the elastic energy stored outside the so-called core region.We show that the

Γ

-limit of this energy (suitably rescaled), as the core radius tends to zero and the number of dislocations tends to infinity, takes the form

E = \int_Ω (W(β^e) + φ (\mathrm{Curl}β^e)) dx,

where

\beta^e

represents the elastic part of the macroscopic strain, and

\mathrm{Curl}β^e

represents the geometrically necessary dislocation density. The plastic energy density

φ

is defined explicitly through an asymptotic cell formula, depending only on the elastic tensor and the class of the admissible Burgers vectors, accounting for the crystalline structure. It turns out to be positively 1-homogeneous, so that concentration on lines is permitted, accounting for the presence of pattern formations observed in crystals such as dislocation walls.
On the dimension of secant varieties
Authors: Chiantini Luca , Ciliberto Ciro
Published: August 2010

In this paper we generalize Zak’s theorems on tangencies and on linear normality as well as Zak’s definition and classification of Severi varieties. In particular we find sharp lower bounds for the dimension of higher secant varieties of a given variety
X
under suitable regularity assumptions on
X
, and we classify varieties for which the bound is attained.
ChemInform Abstract: Synthesis, Characterization, and Electrochemical Properties of Amorphous CrO2‐δ(0 ≤ δ ≤ 0.5) Cathodes.
Authors: KIM J. , MANTHIRAM A.
Published: August 2010

ChemInform 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: Cation Radicals Formed by Electrochemical Oxidation of 1,2,6‐Trimethyl‐3,5‐diacetyl‐1,2‐dihydropyridines
Authors: STRADYN' YA. , GAVARS R. , BAUMANE L. , DUBURS G.
Published: August 2010

ChemInform 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: Flexible Molecules with Defined Shape. Part 8. Model Studies and Predictions for the Conformational Behavior of 2,4,6,n‐Polymethylated Alkane Derivatives.
Authors: HOFFMANN R. W. , GOETTLICH R.
Published: August 2010

ChemInform 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: Intermediates in the Synthesis of Cembrane Diterpenes. Part 1.
Authors: CARACELLI I. , IULEK J. , NEVES A. , VENCATO I. , SILVA F. JUN. , BROCKSOM T. J. , ZUKERMAN‐SCHPECTOR J.
Published: August 2010

ChemInform 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: Intermediates for the Convenient Synthesis of Bicyclic Aziridinocarbamates.
Authors: MAGUE J. T. , ENSLEY H. E. , LING J.
Published: August 2010

ChemInform 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: Enantioselective Carbolithiation of Cinnamyl Acetals. New Access to Chiral Disubstituted Cyclopropanes.
Authors: NORSIKIAN S. , MAREK I. , POISSON J.‐F. , NORMANT J. F.
Published: August 2010

ChemInform 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: Enantioselective Construction of Cyclic Ethers by an Aldol‐Cyclization Sequence.
Authors: GALATSIS P. , MILLAN S. D. , FERGUSON G.
Published: August 2010

ChemInform 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: Double Stereodifferentiation in the Lewis Acid Promoted C‐ Glycosidation of Activated Glycals with Chiral (E)‐Crotylsilanes.
Authors: PANEK J. S. , SCHAUS J. V.
Published: August 2010

ChemInform 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: Enantioselective Synthesis of 5‐LO Inhibitor Hydroxyureas. Tandem Nucleophilic Addition‐Intramolecular Cyclization of Chiral Nitrones.
Authors: LANTOS I. , ET AL. ET AL.
Published: August 2010

ChemInform 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: C3 Symmetric Oxazolinyl Ligand as Catalyst in the Enantioselective Addition of Diethylzinc to Aldehydes.
Authors: CHAN T. H. , ZHENG G. Z.
Published: August 2010

ChemInform 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: Extraordinary Acceleration of Phosphodiester Hydrolyses by Thorium Cations.
Authors: MOSS R. A. , ZHANG J. , BRACKEN K.
Published: August 2010

ChemInform 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: Glyoxylate‐ene Reaction Catalyzed by Ln(OTf)3.
Authors: QIAN C. , HUANG T.
Published: August 2010

ChemInform 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: New (4 + 1) Cycloadditions to Trifluorinated Dienes.
Authors: ABELE H. , HAAS A. , LIEB M. , SCHELVIS M.
Published: August 2010

ChemInform 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 Convenient Synthesis of Thiophene, 1,3‐Thiazole, 2,3‐Dihydro‐1,3,4‐thiadiazole and Pyrazole Derivatives.
Authors: ABDELHAMID A. O. , AL‐SHEHRI S. M.
Published: August 2010

ChemInform 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: Regioselective Synthesis of Furo(3,2‐c)(1)benzopyran‐4‐one and Furo(3, 2‐c)quinolin‐4‐one.
Authors: MAJUMDAR K. C. , BHATTACHARYYA T.
Published: August 2010

ChemInform 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 Convenient Synthesis of 3‐Polyfluoroalkylpyrazoles and 6‐ Polyfluoroalkylpyrimidines from β‐Polyfluoroalkyl Enaminones.
Authors: YU H.‐B. , HUANG W.‐Y.
Published: August 2010

ChemInform 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: One‐Pot Syntheses of 5‐Oxo‐1,4,5,6,7,8‐hexahydroquinolines and Pyrimido(4,5‐b)quinolines Using Microwave Irradiation and Ultrasound.
Authors: AHLUWALIA V. K. , GOYAL B. , DAS U.
Published: August 2010

ChemInform 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: Thermolysis and Co(II)‐Tetraphenylporphyrin‐Catalyzed Decomposition of Substituted Cycloheptatriene Endoperoxides: A New Synthetic Approach to Substituted Dihydrooxepines.
Authors: SENGUEL M. E. , BALCI M.
Published: August 2010

ChemInform 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: Reactions of Alcohols with Cesium Fluoroxysulfate.
Authors: STAVBER S. , KOSIR I. , ZUPAN M.
Published: August 2010

ChemInform 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 Simple and Convenient Method for the Synthesis of Nitriles by Oxidation of Primary Amines with NaOCl in Ethanol.
Authors: YAMAZAKI S.
Published: August 2010

ChemInform 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: Reduction of Nitroarenes to N‐Arylhydroxylamines with KBH4/BiCl3 System.
Authors: REN P.‐D. , PAN X.‐W. , JIN Q.‐H. , YAO Z.‐P.
Published: August 2010

ChemInform 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: Formaldehyde Dialkylhydrazones as Neutral Formyl Anion and Cyanide Equivalents: Nucleophilic Addition to Conjugated Enones.
Authors: DIEZ E. , FERNANDEZ R. , GASCH C. , LASSALETTA J. M. , LLERA J. M. , MARTIN‐ZAMORA E. , VAZQUEZ J.
Published: August 2010

ChemInform 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: Highly Stereoselective SN2′ Reactions of Grignard Reagents Towards CF3‐ Containing Allylic Acetates.
Authors: YAMAZAKI T. , UMETANI H. , KITAZUME T.
Published: August 2010

ChemInform 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 (E,E)‐1,4‐Dialkoxy‐1,3‐butadienes. Part 1. Stereoselective Synthesis.
Authors: VIRGILI M. , MOYANO A. , PERICAS M. A. , RIERA A.
Published: August 2010

ChemInform 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: Tandem Transformations Involving Allylic Silanes. Part 2. Highly Diastereoselective Substitutions Involving ((Trialkylsilyl)methyl) cyclohexene Derivatives with Aldehydes. Synthetic Studies on the Problem of Lewis Acid‐Promoted Protodesilylation and Enolization.
Authors: ORGAN M. G. , WINKLE D. D. , HUFFMANN J.
Published: August 2010

ChemInform 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: Application of the Oxa‐di‐π‐methane Photoisomerization in the Rearrangement of Carbocycles Possessing Bridgehead Unsaturation.
Authors: CORBETT R. M. , LEE C.‐S. , SULIKOWSKI M. M. , REIBENSPIES J. , SULIKOWSKI G. A.
Published: August 2010

ChemInform 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: Electrophilic Amination of Catecholboronate Esters Formed in the Asymmetric Hydroboration of Vinylarenes.
Authors: KNIGHT F. I. , BROWN J. M. , LAZZARI D. , RICCI A. , BLACKER A. J.
Published: August 2010

ChemInform 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 Easy and Efficient Access to 2‐Bromo‐4‐methoxyaniline (III)
Authors: COSSY J. , POITEVIN C. , GOMEZ PARDO D. , PEGLION J. L.
Published: August 2010

ChemInform 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: The Vilsmeier Cyclization of Azides. Synthesis of Oxazoles and Vinyl Azides from 2‐Azidoacetophenones.
Authors: MAJO V. J. , PERUMAL P. T.
Published: August 2010

ChemInform 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 Ferrocenyl‐oxazolines Incorporating Thioether Units: Effective Ligands for Palladium‐Catalyzed Allylic Substitution.
Authors: CHESNEY A. , BRYCE M. R. , CHUBB R. W. J. , BATSANOV A. S. , HOWARD J. A. K.
Published: August 2010

ChemInform 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 Coupling Reaction of (2Z)‐β‐Arylselenocinnamic Esters with Grignard Reagents in Presence of CuI
Authors: HUANG X. , ZHAO C.‐Q.
Published: August 2010

ChemInform 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: Montmorillonite Clay Catalysis. Part 6. Synthesis of Triarylmethanes via Baeyer Condensation of Aromatic Aldehydes with N,N‐Dimethylaniline Catalyzed by Montmorillonite K‐10.
Authors: ZHANG Z.‐H. , YANG F. , LI T.‐S. , FU C.‐G.
Published: August 2010

ChemInform 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 10‐Methyl‐δ4‐octalins by Diels‐Alder Reactions of 2H‐Thiopyran Surrogates for 1‐Ethenyl‐2‐methylcyclohexene.
Authors: WARD D. E. , GAI Y.
Published: August 2010

ChemInform 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: Stereospecific Synthesis of cis‐2‐Alkoxy‐3‐aminooxolanes.
Authors: DE KIMPE N. , AELTERMAN W. , DE GEYTER K. , DECLERCQ J.‐P.
Published: August 2010

ChemInform 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 2,5‐Disubstituted Furans via Palladium‐Catalyzed Annulation of Alkyl 3‐Oxo‐6‐heptynoates.
Authors: CACCHI S. , FABRIZI G. , MORO L.
Published: August 2010

ChemInform 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: Switch from Palladium‐Catalyzed Cycloisomerization/Dimerization of Terminal Allenyl Ketones to Preferential Formation of Monomers by a 5‐ Palladatricyclo(4.1.0.02,4)heptane Catalyst: Synthesis of Furans from Substrates Incompatible with the Commonly Used Silver Catalysts.
Authors: HASHMI A. S. K. , SCHWARZ L.
Published: August 2010

ChemInform 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 1,5‐Dihydro‐2H‐pyrrol‐2‐ones from an Alkyne, an Imine and Carbon Dioxide via an Organotitanium Intermediate.
Authors: GAO Y. , SHIRAI M. , SATO F.
Published: August 2010

ChemInform 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 Expeditious Synthesis of Z‐3‐Alkylidene Isoindolinones via Combined Palladium Catalyzed and Friedel‐Crafts Reactions.
Authors: KUNDU N. G. , KHAN M. W.
Published: August 2010

ChemInform 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: Novel Biological Response Modifiers: Phthalimides with Tumor Necrosis Factor‐α Production‐Regulating Activity.
Authors: MIYACHI H. , AZUMA A. , OGASAWARA A. , UCHIMURA E. , WATANABE N. , KOBAYASHI Y. , KATO F. , KATO M. , HASHIMOTO Y.
Published: August 2010

ChemInform 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: Chemistry of Sulfonylmethyl Isocyanides. Part 43. Novel Synthesis of 4( 5)‐Monosubstituted Imidazoles via Cycloaddition of Tosylmethyl Isocyanide to Aldimines.
Authors: TEN HAVE R. , HUISMAN M. , MEETSMA A. , VAN LEUSEN A. M.
Published: August 2010

ChemInform 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: Sodium Percarbonate: A Multifunctional Reagent for the Preparation of Optically Active 4‐Hydroxy‐δ2‐isoxazolines.
Authors: LIU J. , EDDINGS A. , WALLACE R. H.
Published: August 2010

ChemInform 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 New Enantiocontrolled Synthesis of (‐)‐(R)‐Mevalonolactone.
Authors: SHIMIZU M. , KAMIKUBO T. , OGASAWARA K.
Published: August 2010

ChemInform 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: Oxidation of 4‐Alkyl‐2′‐hydroxy‐2‐cinnamylideneacetophenones with Thallium(III) Trinitrate: A New Synthesis of (E)‐3‐Styrylchromones.
Authors: SILVA A. M. S. , CAVALEIRO J. A. S. , ELGUERO J.
Published: August 2010

ChemInform 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 Enantioselective Route to trans‐2,6‐Disubstituted Piperidines.
Authors: CHACKALAMANNIL S. , WANG Y.
Published: August 2010

ChemInform 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: Aza‐Annulation of Enaminones with Crotonyl Chloride ‐ Formal Reversal of Regioselectivity.
Authors: MURPHY J. P. , HADDEN M. , STEVENSON P. J.
Published: August 2010

ChemInform 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 2,3‐Dihydropyridines, Cyclobutanopyrrolines and Quinolines from Lithiated Allenes and Isothiocyanates.
Authors: BRANDSMA L. , NEDOLYA N. A. , VERKRUIJSSE H. D. , OWEN N. L. , LI D. , TROFIMOV B. A.
Published: August 2010

ChemInform 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 Synthesis of 4,5‐Dihydro‐3(2H)‐pyridazinone Derivatives (IV)
Authors: TOTH G. , MOLNAR S. , TAMAS T. , BORBELY I.
Published: August 2010

ChemInform 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 Short Synthesis of 1‐Vinyluracil and 1‐Vinylthymine.
Authors: ZHOU J. , SHEVLIN P. B.
Published: August 2010

ChemInform 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: Conformationally Restricted Analogues of Trimethoprim: 2,6‐Diamino‐8‐ Substituted Purines as Potential Dihydrofolate Reductase Inhibitors from Pneumocystis carinii and Toxoplasma gondii.
Authors: GANGJEE A. , VASUDEVAN A. , QUEENER S. F.
Published: August 2010

ChemInform 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: Probes for Narcotic Receptor‐Mediated Phenomena. Part 25. Synthesis and Evaluation of N‐Alkyl‐Substituted (α‐Piperazinylbenzyl) benzamides as Novel, Highly Selective δ Opioid Receptor Agonists.
Authors: RICE K. C. , ET AL. ET AL.
Published: August 2010

ChemInform 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: High‐Pressure Promoted Stereoselective Tandem [4 + 2]/[3 + 2] Cycloadditions of Nitroalkenes and Enol Ethers.
Authors: UITTENBOGAARD R. M. , SEERDEN J.‐P. G. , SCHEEREN H. W.
Published: August 2010

ChemInform 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: Syn‐Selective Michael Addition of Amines to Bis‐enones: Synthesis of 1, 3,4,7‐Tetrasubstituted (4R,5S,6S,7R)‐Hexahydro‐5,6‐dihydroxy‐2H‐1,3‐ diazepin‐2‐ones.
Authors: SCHREINER E. P. , PRUCKNER A.
Published: August 2010

ChemInform 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: 1,8‐Bis(phosphanyl)naphthalenes: 1,8‐Bis((diethylamino)phosphanyl) naphthalene, 1,8‐Bis(dichlorophosphanyl)naphthalene, and 1,3‐Dichloro‐ 2,3‐dihydro‐1,3‐dioxo‐2‐oxa‐1,3‐diphosphaphenalene.
Authors: KARACAR A. , THOENNESSEN H. , JONES P. G. , BARTSCH R. , SCHMUTZLER R.
Published: August 2010

ChemInform 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: Enantioselective Catalysis. Part 111. New Chiral Expanded Phosphanes Derived from Substituted Deltacyclenes.
Authors: BRUNNER H. , REIMER A.
Published: August 2010

ChemInform 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: 2,4‐Diphosphoranediyl‐1,3‐diphosphetanes.
Authors: SCHROEDEL H.‐P. , SCHMIDPETER A.
Published: August 2010

ChemInform 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: Facile Generation of Alkyl, Aminyl, and Alkoxy Radicals from Se‐Phenyl Benzoselenohydroximate Derivatives.
Authors: KIM S. , LEE T. A.
Published: August 2010

ChemInform 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 New Synthesis of Thioesters and Selenoesters of Triflic Acid under Oxidative Conditions.
Authors: BILLARD T. , LANGLOIS B. R.
Published: August 2010

ChemInform 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: New Monoorganostannanes as Efficient Reagents for Palladium‐Catalyzed Coupling Reactions.
Authors: FOUQUET E. , PEREYRE M. , RODRIGUEZ A. L.
Published: August 2010

ChemInform 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: Studies Toward the Synthesis of Vinigrol. First Construction of the Tricyclic Ring System.
Authors: DEVAUX J.‐F. , HANNA I. , LALLEMAND J.‐Y.
Published: August 2010

ChemInform 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 Polyunsaturated Irregular Acyclic C25 Isoprenoid in a Methanogenic Archaeon.
Authors: SINNINGHE DAMSTE J. S. , SCHOUTEN S. , VAN VLIET N. H. , HUBER R. , GEENEVASEN J. A. J.
Published: August 2010

ChemInform 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.
A hybrid finite element/finite difference algorithm for compressible/incompressible viscoelastic liquids
Authors: Guaily Amr , Epstein Marcelo
Published: August 2010

A unified formulation is proposed for modelling compressible/incompressible viscoelastic liquids. The pure hyperbolic nature of the model overcomes some of the drawbacks of available models. The most important of these drawbacks is the mixed nature of the resulting systems of equations, with the subsequent consequence of having no general numerical algorithm for the solution. A new non‐dimensionalisation procedure is adopted. A hybrid least‐squares finite element/finite difference scheme coupled with a Newton‐Raphson's algorithm is used to solve the resulting system of equations. The method is used to predict the velocity and stress fields for different Weissenberg numbers for two benchmark problems.
Effect of L64 on the Phase Behavior of 1‐Dodecyl‐3‐methylimidazolium Chloride/Water System
Authors: Wang Luyan , Wu Zhiyan , Pei Meishan , Wu Xinzhou , Tao Xutang
Published: August 2010

Phase behavior of ternary system involving surfactant‐like ionic liquid 1‐dodecyl‐3‐methylimidazolium chloride ([C12mim]Cl), water, and nonionic surfactant PEO‐PPO‐PEO block copolymer (Pluronic L64) is investigated at 25°C. Hexagonal (H1) and lamellar liquid crystal phase (Lα) are found in [C12mim]Cl/H2O/L64 system by using polarized optical microscopy (POM), small‐angle X‐ray scattering (SAXS) techniques and 2H NMR spectra. The phase structure (H1 phase), which is formed in [C12mim]Cl/H2O binary system, is not changed when L64 with a low concentration is added. However, phase transitions will occur from hexagonal to multiphases of H1 and cubic phases (C), then to Lα+C phases with constant [C12mim]Cl/H2O ratio and increasing L64 concentration. Moreover, at given L64 (5%, 20%) concentration, the lattice parameter of H1 or Lα phase decreases with increasing [C12mim]Cl/H2O ratio. Fourier transform infrared (FTIR) spectra indicate that the H‐bonded network comprising an imidazolium ring, chloride ion and water formed in [C12mim]Cl/H2O binary system is disrupted upon addition of L64. This is helpful to the phase transition, due to the decreasing of interfacial curvature induced by dehydration of hydrated layer after the addition of PEO block of L64.
Mechanistic Study of Ozone‐Water Reaction and Their Reaction Products with Gas Phase Elemental Mercury: A Computational Study
Authors: Vahedpour Morteza , Tozihi Manijeh , Nazari Fariba
Published: August 2010

The interaction of oxygen of water and central oxygen of ozone produces stable H2O‐O3 complex with no barrier. With decomposition of this complex through H‐abstraction by O3 and O‐abstraction by H2O, four possible product channels have been found. The reaction of mercury and the products of water‐ozone reaction have been studied. All geometrical and AIM parameters of intermediate, transition states, and the products of reactions are calculated and thermodynamic parameters are obtained. The negative value of free energy show that channels Hg+H2OO, Hg+H2O2 and Hg+H2O4 in hydrogen tetroxide form (HTO) may be the main reaction channels.
Chemical Stability and Electrical Property of BaCe0.7Zr0.2Nd0.1O3−α Ceramic
Authors: Wang Maoyuan , Qiu Ligan , Zhang Tong
Published: August 2010

BaCe0.7Zr0.2Nd0.1O3−α ceramic was prepared by solid state reaction. Phase composition, surface and fracture morphologies of the material were characterized by using XRD and SEM, respectively. Chemical stability against carbon dioxide and water steam at the high temperature was tested. The conductivity and ionic transport number of the material were measured by ac impedance spectroscopy and gas concentration cell methods in the temperature range of 500–900°C in wet hydrogen and wet air, respectively. Using the ceramic as solid electrolyte and porous platinum as electrodes, the hydrogen‐air fuel cell was constructed, and the cell performance at the temperature from 500 to 900°C was examined. The results indicate that BaCe0.7Zr0.2Nd0.1O3−α was a single phase perovskite‐type orthorhombic system, with high density and good chemical stability in carbon dioxide and water steam atmospheres at the high temperature. The conductivity of the material in wet hydrogen and wet air was increased as the temperature rises. In wet hydrogen, the material was a pure protonic conductor with the protonic transport number of 1 from 500 to 600°C, a mixed conductor of proton and electron with the protonic transport number of 0.973–0.955 from 700 to 900°C. In wet air, the material was a mixed conductor of proton, oxide ion and electron hole. The protonic transport numbers were 0.002–0.003, and the oxide ionic transport numbers were 0.124–0.179. The fuel cell could work stably. At 900°C, the maximum short‐circuit current density and power output density were 156 mA·cm−2 and 40 mW·cm−2, respectively.
Recognizing Hybrid/Mixed G‐quadruplex in Human Telomeres by Using a Cyanine Dye Supramolecule with Confocal Laser Scanning Microscopy
Authors: Yang Qianfan , Xiang Junfeng , Yang Shu , Zhou Qiuju , Li Qian , Guan Aijiao , Zhang Xiufeng , Zhang Hong , Tang Yalin , Xu Guangzhi
Published: August 2010

Single‐stranded telomeric DNA tends to form a four‐base‐paired planar structure termed G‐quadruplex. Although kinds of G‐quadruplex structures in vitro have been documented in the presence of potassium or sodium, recognition of these DNA motifs (both in vitro and in vivo) is still an important issue in understanding the biological function of the G‐quadruplex structures in telomeres as well as developing anticancer agents. Herein we address this important question through the distinctive properties of a supramolecular system of cyanine dye 3,3′‐di(3‐sulfopropyl)‐4,5,4′,5′‐dibenzo‐9‐methyl‐thiacarbocyanine triethylammonium salt (MTC) upon binding to different DNA motifs. Interaction of MTC with hybrid/mixed G‐quadruplex results in a set of unique spectrophotometric signatures which are completely different from those arising from binding to other DNA motifs. Furthermore, such feature could be extended to map the locations of DNAs on interface. Linear duplex and mixed G‐quadruplex in human telomeres assembled on Au film and stained by MTC were directly recognized by confocal laser scanning microscopy (CLSM). All results suggested that MTC supramolecular system may be a good probe of specific G‐quadruplex structure.
Aptamer‐modified AuRe Nanoalloy Probe for Trace Hg2+ Using Resonance Scattering as Detection Technique
Authors: Jiang Zhiliang , Zhang Jing , Wen Guiqing , Liang Aihui , Liu Qingye , Kang Caiyan , He Xingcun
Published: August 2010

The AuRe nanoalloy particles in molar ratio of 9:1 were prepared by sodium borohydride procedure, and modified by single strand DNA (ssDNA) to prepare an aptamer AuRe nanoprobe (AuRessDNA) for Hg2+. In the pH 7.0 Na2HPO4‐NaH2PO4 buffer solution and in the presence of NaCl, Hg2+ interacted with AuRessDNA to form double‐stranded T‐Hg2+‐T mismatched and release AuRe nanoparticles that aggregate to large AuRe nanoparticles clusters causing the resonance scattering (RS) peak red shifting and the RS intensity enhanced linearly. On those grounds, 0.067–33.3 nmol·L−1 Hg2+ can be detected rapidly by the aptamer‐modified AuRe nanoparticles RS assay, with a detection limit of 0.04 nmol·L−1 Hg2+. If the aggregated AuRe particles were removed by membrane filtration, the excess AuRessDNA in the filtration solution exhibits catalytic effect on the new Te particle reaction between Na2TeO4 and SnCl2. As the concentration of Hg2+ increased, the AuRessDNA nanoparticles in the filtrate solution decreased, the RS intensity at 734 nm decreased linearly. The Hg2+ concentration (c) in the range of 0.00133–0.267 nmol·L−1 was linear to the decreased RS intensity (ΔI734nm), with a regression equation of ΔI= −786.4c−4.4, a correlation coefficient of 0.9975, and a detection limit of 0.9 pmol·L−1 Hg2+. This method was applied to the detection of Hg2+ in water samples, with satisfactory results.
Near‐Infrared Fluorimetric Determination of Copper(II) Ions Using CdHgTe Nanorods as Probe
Authors: Yu Mingchuan , Jin Yingqiong , Qi Xin , Bao Linjun , Qian Zhangsheng , Zhu Changqing
Published: August 2010

Stable water‐soluble CdHgTe nanorods with an emission wavelength at 722 nm, obtained by doping Hg2+ into CdTe nanorods, has been used as a near‐infrared region (NIR) probe to investigate their interaction with copper(II) ions. A new fluorimetric method for the determination of copper(II) ions has been developed based on the quenching effect of copper(II) ions on the emission of CdHgTe nanorods. The mechanism studies show that an effective electron transfer from nanorods to the copper(II) ions occurred based on the coordination reaction between copper(II) ions and the carboxyl groups on the nanorods surface, which could be responsible for the emission quenching of CdHgTe nanorods. Under optimum conditions, the linear range of the calibration curve for the determination of Cu2+ is from 8.0×10−9 to 1.0×10−6 mol/L and the detection limit is 2.0×10−9 mol/L. Owing to low background interference of NIR measurement, the proposed method displays relative high sensitivity and selectivity. Especially, some physiologically important cations almost do not interfere with the determination of Cu2+. The proposed method was also applied to the determination of trace Cu2+ in real aqueous samples with satisfactory results.
Pharmacophore Modeling and Virtual Screening of Novel Inhibitors for c‐Kit Kinase
Authors: Jiang Qinglin , Yang Qian , Liao Changjun , Zan Wang , Zang Zhihe
Published: August 2010

The stem cell factor receptor (c‐Kit) has been known to play critical roles in regulating numerous aspects of cellular behavior including cell growth, differentiation, migration and metabolism. In this investigation, a three‐dimensional pharmacophore model of c‐Kit inhibitors has been established by using the HypoGen algorithms implemented in the catalyst software package. The best quantitative pharmacophore model, hypothesis 1, which has the highest correlation coefficient (0.989), consists of one hydrogen bond acceptor, two hydrogen bond donors and one hydrophobic feature. To our knowledge, this is the first report on the pharmacophore modeling study of c‐Kit inhibitors. The best hypothesis, hypothesis 1, was used to screen molecular structural databases, including Specs and China Natural Products Database for potential lead compounds. The hit compounds were subsequently subjected to filtering by Lipinski's rules and docking study to refine the retrieved hits and as a result to reduce the rate of false positive. Finally 28 compounds were purchased or synthesized for further in vitro assay against several human tumour cell lines including A549, MCF‐7, HepG2 and PC‐3, in which c‐Kit is overexpressed. Two compounds show very low micromolar inhibition potency against the PC‐3 and HepG2 cell lines respectively. And they were selected for further modification and testing.
Synthesis of Novel Spiro Pyrrolidine and Pyrrolizine Derivatives by 1,3‐Dipolar Cycloaddition
Authors: Li Xiaofang , Zheng Aiting , Liu Bin , Yu Xianyong , Yi Pinggui
Published: August 2010

The 1,3‐dipolar cycloaddition of azomethine ylides derived from isatin and amino acids viz. sarcosine and proline to 2‐arylmethylidene‐5,6‐dihydroimidazo[2,1‐b]thiazol‐3(2H)‐ones afforded novel spiro pyrrolidines and pyrrolizidines regio‐ and stereoselectively in moderate yields. The products were characterized thoroughly by IR, MS, NMR together with elementary analysis.
One‐pot Preparation of Fluorinated Polyhydrobenzoacridine‐1‐one Derivatives under Microwave Irradiation and Solvent‐free Conditions
Authors: Jin Jianan , Zhang Jianmin , Liu Fengrui , Shang Wenli , Xin Yong , Zhu Shizheng
Published: August 2010

A facile and efficient synthesis of fluorine‐containing polyhydrobenzoacridines was accomplished by a three‐component coupling of fluorinated aldehyde, α‐naphthylamine, and 1,3‐cyclohexanedione or dimedone under microwave irradiation and solvent‐free conditions without catalyst. All new compounds were obtained in moderate to good yields and characterized by standard spectroscopic methods.
Green and Highly Efficient Functionalization of Carbon Nanotubes by Combination of 1,3‐Dipolar Cycloaddition and Curtius Rearrangement Reactions
Authors: Peng Hongdan , Yang Zhe , Huang Shu , Liu Tianxi
Published: August 2010

A facile and environmentally friendly strategy was developed for covalent modification of the convex surfaces of carbon nanotubes (CNT) through a combination of 1,3‐dipolar cycloaddition of azomethine ylides and Curtius rearrangement of carboxylic acid azides and its application in grafting polyamide 6 onto the surface of CNT was further investigated.
Convenient Synthesis of D‐Talose from D‐Galactose
Authors: Xiao Hualing , Wang Guangfa , Wang Peng , Li Yingxia
Published: August 2010

The rare and expensive D‐talose was conveniently synthesized from readily available D‐galactose in four steps with an overall yield of 58%. The key step was the inversion of equatorial 2‐OH of galactose to the axial one by SN2 reaction under the modified Lattrell‐Dax reaction conditions.
Addition of Acetone towards β‐Cyano‐α‐oxoesters Catalyzed by L‐Proline: Dynamic Kinetic Resolution
Authors: Wang Yajun , Zhang Yawen
Published: August 2010

β‐Cyano‐α‐oxoesters were found to undergo asymmetric aldol addition reaction with acetone in the presence of 10 mol% of L‐proline. With the racemic starting material, dynamic kinetic resolution (DKR) was achieved in quantitative yields with good diastreroselectivity of up to 85:15 dr and excellent ee up to 99% for the major diastereomer.
Synthesis, Photophysics and Morphology of a Conjugated Polymer with Azobenzene Building Block in the Backbone
Authors: Shen Dezhi , Pan Zhenxing , Xu Haibo , Cheng Si , Zhu Xiulin , Fan Lijuan
Published: August 2010

A conjugate polymer poly[p‐(phenyleneethylene)‐alt‐(phenyleneazophenyleneethylene)] (PPEPAPE) containing azobenzene building block in the polymer backbone was synthesized via Sonogashira cross‐coupling of 4,4′‐diiodoazobenzene and 1,4‐diethynyl‐2,5‐didodecyloxybenzene. All the monomers and the resulting polymer were well characterized. The polymer had a relatively high molecular weight and showed very good solubility (≧10 mg/mL) in common organic solvents. The photophysics of this polymer in solution and in film was investigated. The surface morphology of the films was studied by scanning electron microscope (SEM) and the relationship between the morphology and absorbance was discussed. This polymer has good film‐forming property, broad absorbance and no emission, which might make it a good candidate for the photovoltaic material in the solar cell.
Synthesis of 3‐Benzoyl Acrylates/Acrylamides via Dehydrogenation of 3‐Benzoyl Propionates/Propionamides Using IBX/p‐TsOH
Authors: Li Ziyuan , Wang Yiyun , Tang Changhua , Xu Jinyi , Wu Xiaoming , Yao Hequan
Published: August 2010

Dehydrogenation by IBX/p‐TsOH is applied to the conversion of 3‐benzoyl propionates/propionamides to 3‐benzoyl acrylates/acrylamides in moderate to excellent yields. The reaction time for the dehydrogenation of 3‐benzoyl propionamides was remarkably shorter than that for the dehydrogenation of esters.