bluuebunny/crossref_metadata_2025_split huggingface dataset:
ChemInform Abstract: A Modified Procedure for the Synthesis of C3‐Symmetric “Mixed‐Tail” Triphenylenes.
Authors: WRIGHT P. T. , GILLIES I. , KILBURN J. D. 
Published: August 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 and Electrochemistry of Diels‐Alder Adducts of (60)Fullerene with a Phthalocyanine and a Hemiporphyrazine.
Authors: DUERR K. , FIEDLER S. , LINSSEN T. , HIRSCH A. , HANACK M. 
Published: August 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: Inhibition of UDP‐Gal Mutase and Mycobacterial Galactan Biosynthesis by Pyrrolidine Analogues of Galactofuranose.
Authors: LEE R. E. , SMITH M. D. , NASH R. J. , GRIFFITHS R. C. , MCNEIL M. , GREWAL R. K. , YAN W. , BESRA G. S. , BRENNAN P. J. , FLEET G. W. J. 
Published: August 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: Use of Conformationally Restricted Benzamidines as Arginine Surrogates in the Design of Platelet GPIIb‐IIIa Receptor Antagonists.
Authors: SALL D. J. , ET AL. ET AL. 
Published: August 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: First Diastereoselective (3 + 2) Cycloaddition of Chiral Non‐Racemic Alkenyl Fischer Carbene Complexes with Diazomethane Derivatives.
Authors: BARLUENGA J. , FERNANDEZ‐MARI F. , VIADO A. L. , AGUILAR E. , OLANO B. 
Published: August 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: Preparation and Bioactivity of Pyrazole Derivatives as Potential Cross‐ Linking Agents.
Authors: KATAYAMA H. , OSHIYAMA T. 
Published: August 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: Medetomidine Analogues as α2‐Adrenergic Ligands. Part 3. Synthesis and Biological Evaluation of a New Series of Medetomidine Analogues and Their Potential Binding Interactions with α2‐ Adrenoceptors Involving a “Methyl Pocket”.
Authors: ZHANG X. , DE LOS ANGELES J. E. , HE M.‐Y. , DALTON J. T. , SHAMS G. , LEI L. , PATIL P. N. , FELLER D. R. , MILLER D. D. , HSU F.‐L. 
Published: August 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 Titanium(IV) Mediated One‐Pot Double Condensation Synthesis of 5,6‐Dihydro‐4H‐pyran‐4‐ones.
Authors: MORRIS J. , WISHKA D. G. , LUKE G. P. , JUDGE T. M. , GAMMILL R. B. 
Published: August 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: Electrosynthesis of α‐Aminonitriles: Anodic Cyanation of N‐ Substituted Tetrahydroquinolines and N‐Phenylpiperidines.
Authors: LE GALL E. , HURVOIS J.‐P. , RENAUD T. , MOINET C. , TALLEC A. , URIAC P. , SINBANDHIT S. , TOUPET L. 
Published: August 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: Intermolecular (4π + 2π)‐Cycloadditions of Aromatic Methyleneamines.
Authors: CAMPOS P. J. , LAMAZA I. , RODIGUEZ M. A. , CANAL G. 
Published: August 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 Method for Generation of α‐Oxoketenes: Cycloreversion of Enolized Meldrum′s Acid Derivatives.
Authors: SATO M. , BAN H. , KANEKO C. 
Published: August 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 and Activity of 6‐Substituted Purine Linker Amino Acid Immunostimulants.
Authors: ZACHARIE B. , GAGNON L. , ATTARDO G. , CONNOLLY T. P. , ST‐DENIS Y. , PENNEY C. L. 
Published: August 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: Geometrically Constrained Tetrathiafulvalenophanes: Synthesis and Characterization.
Authors: LAU J. , BLANCHARD P. , RIOU A. , JUBAULT M. , CAVA M. P. , BECHER J. 
Published: August 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: Preparation of a Homochiral Phenolic Crown Ether Having Chiral Subunits Derived from (1R,2S)‐cis‐1,2,3,4‐Tetrahydronaphthalene‐1,2‐ diol: Temperature‐Dependent Enantioselectivity in Complexations with Neutral Amines.
Authors: NAEMURA K. , WAKEBE T. , HIROSE K. , TOBE Y. 
Published: August 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 and Reactions of Bis(4,5‐benzo‐1,3‐dioxa‐2‐phospholano) dichloromethane
Authors: KRILL J. , SHEVCHENKO I. V. , FISCHER A. , JONES P. G. , SCHMUTZLER R. 
Published: August 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: Chemistry of the Stable Diarylstannylene (RF)2Sn (RF: 2,4,6‐Tris( trifluoromethyl)phenyl): Cycloaddition Reactions with Heterocumulenes, 3,5‐Di‐t‐butyl‐o‐benzoquinone and S4N4.
Authors: EDELMANN F. T. , BELAY M. 
Published: August 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 Novel Optically Active Tin Hydrides Containing Chiral Ligands.
Authors: SCHWARZKOPF K , METZGER J. O. , SAAK W. , POHL S. 
Published: August 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.
Stabilities and Electronic Properties of Ice Nanotube Encapsulated in Single‐wall Carbon Nanotube
Authors: Yang Baohua , Zhang Aihua , Li Lin 
Published: August 2010

AbstractThe one‐dimensional n‐gon ice nanotube and its hybrid structure n‐gon@(m,n) are investigated using ab initio self‐consistent‐field crystal orbital method based on density functional theory. The study focused on the stabilities and electronic properties of ice tube and n‐gon@(m,n) complex. The results show that the pentagon and hexagon ice tubes are most stable and all the tubes are semiconductor with the band gap of −6 eV for the isolated ice nanotube. For the complex n‐gon@(m,n), the interwall spacing between the carbon nanotube and ice tube plays an important role in the stabilities of resultant structures. The most stable complex has optimum interwall spacing which is close to the van der Waals distance. The frontier energy bands of n‐gon@(m,n) complex are mainly derived from carbon nanotube and encapsulation of ice tube can not modulate the electronic properties of CNT.
Kinetics and Mechanism of Oxidation of Sarcosine by Diperiodatocuprate(III) Complex in Alkaline Medium
Authors: Shan Jinhuan , Wang Xiaoqian , Zhao Ning 
Published: August 2010

AbstractThe kinetics of oxidation of sarcosine by diperiodatocuprate(III) (DPC) was studied with spectrophotometry in a temperature range of 292.2–304.2 K. The reaction between diperiodatocuprate(III) and sarcosine in alkaline medium exhibits 1:1 stoichiometry (DPC:sarcosine). The reaction was found to be first order with respect to both DPC and sarcosine. The observed rate constant (kobs) decreased with the increase of the [IO−4], decreased with the increase of the [OH−], and then increased with the increase of the [OH−] after a turning point. There was no salt effect, and free radicals were detected. Based on the experimental results, a mechanism involving the diperiodatocuprate(III) (DPC) as the reactive species of the oxidant has been proposed. The activation parameters, as well as the rate constants of the rate‐determining step, have been calculated.
Preparation of Immobilized Metal Affinity Chromatographic Packings by Immobilization of Carboxymethylated Asparate (CM‐Asp) Based on Monodisperse Hydrophilic Non‐porous Beads and Their Application
Authors: Gong Bolin , Bo Chunmiao , Wang Fuqiang 
Published: August 2010

AbstractThe hydrophilic immobilized metal affinity chromatographic packing was prepared by immobilization of carboxymethylated asparate (CM‐Asp) as chelating ligand and Ni2+ as center ion on the base of monodispersed, 3.0 µm non‐porous monodisperse poly(glycidylmethacrylate‐co‐ethylenedimethacrylate) (PGMA/EDMA) particles. The retention behavior of proteins and the effect of pH on the retention in the range from 4.0 to 9.0 were investigated on both the naked and metal ion chelated columns. Four proteins were quickly separated in 2.0 min with linear gradient elution at a flow rate of 3.0 mL·min−1 by using the synthesized Ni2+‐CM‐Asp‐PGMA/EDMA packings. The separation time was shorter than other immobilized metal affinity chromatography reported in the literature. The Ni2+‐CM‐Asp‐PGMA/EDMA column was further investigated for the rapid separation and purification of copper‐zinc superoxide dismutase (Cu,Zn‐SOD) from the blood of pig in 3.0 min with only one step. The results obtained were satisfactory.
Efficient Allylation of Active Ketones Promoted by p‐Nitrobenzoic Acid
Authors: Xie Zhengfeng , Li Guilong , Zhao Gang , Wang Jide 
Published: August 2010

AbstractA general and practical method of allylation of carbonyl compounds promoted by p‐nitrobenzoic acid under mild reaction condition has been developed. p‐Nitrobenzoic acid can be easily recovered after workup by aqueous HCl.
Synthesis and Properties of Brominated 6,6′‐Dimethyl‐[2,2′‐bi‐1H‐indene]‐3,3′‐diethyl‐3,3′‐dihydroxy‐1,1′‐diones
Authors: Chen Yong , Pang Meili , Cheng Kaige , Wang Ying , Han Jie , Meng Jiben 
Published: August 2010

AbstractPhotochromic 6‐bromomethyl‐6′‐methyl‐[2,2′‐bi‐1H‐indene]‐3,3′‐diethyl‐3,3′‐dihydroxy‐1,1′‐dione (2), 6,6′‐ bis(bromomethyl)‐[2,2′‐bi‐1H‐indene]‐3,3′‐diethyl‐3,3′‐dihydroxy‐1,1′‐dione (3) and 6,6′‐bis(dibromomethyl)‐[2,2′‐ bi‐1H‐indene]‐3,3′‐diethyl‐3,3′‐dihydroxy‐1,1′‐dione (4) have been synthesized from 6,6′‐dimethyl‐[2,2′‐bi‐1H‐ indene]‐3,3′‐diethyl‐3,3′‐dihydroxy‐1,1′‐dione (1). The single crystal of 4 was obtained and its crystal structure was analyzed. The results indicate that in crystal 4, molecular arrangement is defective tightness compared with its precursor 1. Besides, UV‐Vis absorption spectra in CH2Cl2 solution, photochromic and photomagnetic properties in solid state of 2, 3 and 4 were also investigated. The results demonstrate that when the hydrogen atoms in the methyl group on the benzene rings of biindenylidenedione were substituted by bromines, its properties could be affected considerably.
Environmentally Benign Regio‐ and Stereoselective Synthesis of Functionalized Tertiary Amines
Authors: Wang Rendong , Li Jian , Li Chunju , Liu Jun , Li Dafeng , Jia Xueshun , Zhai Hongbin 
Published: August 2010

AbstractThe environmentally benign, regio‐ and stereoselective synthesis of functionalized tertiary amine 3 from acetates of Baylis‐Hillman adducts with the aliphatic primary amines in the absence of any solvent and catalysts was reported.
Synthesis and Bioactivity of Novel N,N′‐Diacylhydrazine Derivatives Containing Furan (III)
Authors: Cui Zining , Zhang Li , Huang Juan , Yang Xinling , Ling Yun 
Published: August 2010

Abstract42 novel diacylhydrazine derivatives containing furan were synthesized by the reaction of 5‐substituted phenyl‐2‐furoyl chloride with substituted benzohydrazide in anhydrous dichloromethane under reflux. Their structures were confirmed by IR, 1H NMR, MS and elemental analysis. Insecticidal and antitumor activity of these new compounds was evaluated. The preliminary bioassays showed that the target compounds exhibited larvicidal activity to the Mythimna separate, some of them exhibited good or moderate larvicidal activity. At the concentration of 0.1%, compounds I2, I4, I5, and III1 showed 95.0%, 90.0%, 95.0% and 95.0% larvicidal activity to Mythimna separate respectively. Some compounds such as I2, I4, I5 and III1 showed the typical IGRs' activity, which could induce the larvae premature, abnormal, and lethal larval molt. Results of anticancer activity indicated that some compounds exhibited potential activity against some human cancer cell lines, for example, I1 and IV showed good activity to the BGC‐823 and the inhibitory rates were 60.86% and 61.94% respectively at 10 µmol/L.
Synthesis and Characterization of New Adhesion Promoter for Grafting Conducting Polymer on Oxide Substrate
Authors: Cai Xuediao , Jaehne Evelin , Adler Hans‐Juergen , Guo Wenge 
Published: August 2010

AbstractFor grafting polypyrrole layers on oxidic substrates, the synthesis and characterization of a new adhesion promoter 11‐(pyrrol‐3‐yl) undecyl trimethoxysilane (PyTMS) were described in this article. The oxidation potential of PyTMS was determined by cyclic voltammetry. The grafting behavior of such an adhesion promoter on oxidized surface and chemical deposition of polypyrrole over the modified oxidized surface were studied. The adsorbed layer on the oxidized substrates thus formed was determined by both contact angle measurements and X‐ray photoelectron spectroscopy. Chemical polymerization of terminal pyrrole moieties on such substrates yielded adhesive polypyrrole films, and SEM image showed that the morphology of the polypyrrole films was influenced by the experimental conditions.
Photostability Study of Doxorubicin Aqueous Solution Enhanced by Inclusion Interaction between Doxorubicin and Hydroxypropyl‐β‐cyclodextrin
Authors: Peng Mingli , Liu Yanhong , Zhang Hua , Cui Yali , Zhai Gaohong , Chen Chao 
Published: August 2010

AbstractThe photodegradation of doxorubicin (Dox) in the presence of hydroxypropyl‐β‐cyclodextrin (HP‐β‐CD) was studied; the degradation rate constant in the presence of HP‐β‐CD estimated by Lineweaver‐Burk analysis was approximately three times lower than that of free Dox aqueous solution, which shows that HP‐β‐CD can enhance the photostability of doxorubicin aqueous solution. The enhancement may be attributed to the inclusion interaction between HP‐β‐CD and doxorubicin. The characterization of FTIR, DSC, XRD and fluorescence titration indicates that 1:1 inclusion complex is formed between HP‐β‐CD and doxorubicin.
Friction and Wear of Semi‐Crystalline Polytetrafluoroethylene with Spherulitic Micro‐Morphology
Authors: Wang Xiaoqun , Zhao Zhenlu , Chen Darong , Du Shanyi 
Published: August 2010

AbstractPolytetrafluoroethylene (PTFE) is an important engineering material with a low coefficient of friction but a high rate of wear. As a semi‐crystalline polymer, its wear resistance is related to its micro‐morphology. Friction and wear properties of semi‐crystalline non‐spherulitic PTFE have been widely studied, but no investigation is reported about tribological properties of spherulitic PTFE due to difficulties in finding such properties. In this paper, friction and wear properties of PTFE with spherulitic micro‐morphology are studied for the first time. The results show that, first, under the same experimental condition, when two kinds of PTFE are rubbed against the steel disc, the number and size of debris of spherulitic PTFE are much less and smaller than that of debris of PTFE without spherulitic crystals. This means that the wear resistance of spherulitic PTFE is better than that of semi‐crystalline PTFE without spherulitic micro‐morphology. Second, the friction property of spherulitic PTFE is also different from that of PTFE without spherulitic crystals. Finally, the friction and wear mechanisms of spherulitic PTFE and non‐spherulitic PTFE are compared.
Soil Carbon and Nutrient Accumulation under Forest Plantations in Jharkhand State of India
Authors: Roy Pankaj Kumar , Samal Nihar Ranjan , Roy Malabika Biswas , Mazumdar Asis 
Published: August 2010

AbstractThe decrease and degradation of the tropical forests affect not only the production of timber but also the global environment in a large scale. The ability of soil to sustain and its supply of nutrients to a growing forest are controlled by a complex of biogeochemical processes. The purpose of the present study aims to assess the degraded forest fringe areas, to promote plantations of various types and to evaluate their impacts on the soil nutrients and carbon content accumulation. The soil organic carbon (SOC) and nutrient content were evaluated and compared between plantations of mixed native species (MNS), some native tree species as Shorea robusta, Dalbergia sissoo, Dendrocalamus spp., certain agro‐forestry species and some exotic varieties. The impacts of the plantations on the SOC and the nutrients were firstly analyzed through comprehensive chemical analyses and the results were compared with the soil samples collected prior to plantation forestry. Significant changes were observed in SOC content, in nutrients, and in amounts of exchangeable cations. Soil carbon levels were highest under the MNS, Dendrocalamus and Tectona grandis stands and lowest under D. sissoo and Terminalia arjuna. Total N showed highest levels under Dendrocalamus and Pongamia pinnata and significantly higher in stands of native species; lowest total N level was observed in D. sissoo plantations. The C/N ratios of the soil varied between 9.2 and 13.5 among the exchangeable cations. Ca2+ recorded the maximum levels and Na+ showed the lowest levels.
Cationic polymer‐mediated small interfering RNA delivery for P‐glycoprotein down‐regulation in tumor cells
Authors: Abbasi Meysam , Lavasanifar Afsaneh , Berthiaume Luc G. , Weinfeld Michael , Uludağ Hasan 
Published: August 2010

AbstractBACKGROUND:Among the treatment options that have been developed for cancer, chemotherapy remains 1 of the leading clinical approaches. Chemotherapy can usually control tumor growth at the onset of disease, but its effectiveness becomes limited by the overexpression of transporter proteins responsible for drug efflux, leading to multidrug resistance (MDR). To overcome this obstacle, the authors explored the feasibility of down‐regulating the main drug transporter, P‐glycoprotein (P‐gp), by using nonviral small interfering RNA (siRNA) delivery as means to enhance the accumulation of chemotherapeutic agents in drug‐resistant cancer cells.METHODS:Several cationic carriers capable of siRNA complexation were investigated for P‐gp down‐regulation in the MDA435/LCC6 cell line and, consequently, increased cellular uptake of the chemotherapeutic agents doxorubicin and paclitaxel.RESULTS:Efficient siRNA delivery into tumor cells was demonstrated particularly using a palmitic‐acid substituted poly(L‐lysine), with no apparent differences in siRNA delivery between the wild type (WT)‐expressing and P‐gp‐expressing phenotype (MDR1) of the cells. Efficient siRNA delivery led to approximately 40% to 50% P‐gp suppression (based on the average expression level of the protein), an approximately 3‐fold increased DOX uptake, and increased cytotoxicity in MDR1 cells.CONCLUSIONS:The authors concluded that effective siRNA delivery with nonviral carriers can reduce the level of P‐gp on cell surfaces and enhance the efficiency of chemotherapeutic agents in vitro. Cancer 2010. © 2010 American Cancer Society.