bluuebunny/crossref_metadata_2025 huggingface dataset:
Cytokine-Dependent Modification of IL-12p70 and IL-23 Balance in Dendritic Cells by Ligand Activation of Vα24 Invariant NKT Cells
Authors: Uemura Yasushi , Liu Tian-Yi , Narita Yayoi , Suzuki Motoharu , Nakatsuka Ryusuke , Araki Tomoyuki , Matsumoto Masahito , Iwai Leo Kei , Hirosawa Narumi , Matsuoka Yoshikazu , Murakami Mari , Kimura Takashi , Hase Makoto , Kohno Hirao , Sasaki Yutaka , Ichihara Yasuko , Ishihara Osamu , Kikuchi Hirosato , Sakamoto Yasushi , Jiao Shun-Chang , Senju Satoru , Sonoda Yoshiaki
Published: June 2009

CD1d-restricted invariant NKT (iNKT) cells play crucial roles in various types of immune responses, including autoimmune diseases, infectious diseases and tumor surveillance. The mechanisms underlying their adjuvant functions are well understood. Nevertheless, although IL-4 and IL-10 production characterize iNKT cells able to prevent or ameliorate some autoimmune diseases and inflammatory conditions, the precise mechanisms by which iNKT cells exert immune regulatory function remain elusive. This study demonstrates that the activation of human iNKT cells by their specific ligand α-galactosylceramide enhances IL-12p70 while inhibiting the IL-23 production by monocyte-derived dendritic cells, and in turn down-regulating the IL-17 production by memory CD4+ Th cells. The ability of the iNKT cells to regulate the differential production of IL-12p70/IL-23 is mainly mediated by a remarkable hallmark of their function to produce both Th1 and Th2 cytokines. In particular, the down-regulation of IL-23 is markedly associated with a production of IL-4 and IL-10 from iNKT cells. Moreover, Th2 cytokines, such as IL-4 and IL-13 play a crucial role in defining the biased production of IL-12p70/IL-23 by enhancement of IL-12p70 in synergy with IFN-γ, whereas inhibition of the IFN-γ-promoted IL-23 production. Collectively, the results suggest that iNKT cells modify the IL-12p70/IL-23 balance to enhance the IL-12p70-induced cell-mediated immunity and suppress the IL-23-dependent inflammatory pathologies. These results may account for the long-appreciated contrasting beneficial and adverse consequence of ligand activation of iNKT cells.
IL-23 Promotes the Production of IL-17 by Antigen-Specific CD8 T Cells in the Absence of IL-12 and Type-I Interferons
Authors: Curtis Meredith M. , Way Sing Sing , Wilson Christopher B.
Published: June 2009

In contrast to CD4 T cells, CD8 T cells inherently differentiate into IFN-γ-producing effectors. Accordingly, while generation of IFN-γ-producing Th1 CD4 T cells was profoundly impaired in mice deficient for both type-I IFN and IL-12 signaling in response to infection with Listeria monocytogenes, generation of Ag-specific, IFN-γ-producing CD8 T cells was unimpaired. However, a fraction of these CD8 T cells also produced IL-17 in an IL-23-dependent manner. Furthermore, the addition of IL-23 in vitro was sufficient for some naive CD8 T cells to differentiate into IFN-γ/IL-17 dual-producing cells and was associated with increased expression of ROR-γt and ROR-α. Addition of IL-6 and TGF-β to IL-23 further augmented ROR-γt and ROR-α expression and suppressed Eomes expression, thereby enhancing IL-17 production by CD8 T cells. A loss of cytotoxic function accompanied the production of IL-17, as the addition of IL-6 and TGF-β resulted in a marked reduction of granzyme B and perforin expression. Thus, CD8 T cells retain sufficient plasticity to respond to environmental cues and can acquire additional effector functions in response to their environmental context.
Occupational stress, ill health and organisational commitment of employees at a university of technology
Authors: Viljoen Joshua P. , Rothmann Sebastiaan
Published: June 2009

The aim of this study was to investigate the relationship between occupational stress, ill health and organisational commitment. A survey design was used. The sample (N=353) consisted of academic (n=132) and support staff (n=221) at a university of technology. The Organizational Stress Screening Tool (ASSET) and a biographical questionnaire were administered. The results showed that different organisational stressors contributed significantly to ill health and low organisational commitment. Stress about job security contributed to both physical and psychological ill health, whereas overload and job aspects contributed to psychological ill health. Stress about control and resources contributed to low organisational commitment. Low individual commitment to the organisation was predicted by five stressors, namely work-life balance, overload, control, job aspects and pay.
Links between habitat degradation, and social group size, ranging, fecundity, and parasite prevalence in the Tana River mangabey (Cercocebus galeritus)
Authors: Mbora David N.M. , Wieczkowski Julie , Munene Elephas
Published: June 2009

We investigated the effects of anthropogenic habitat degradation on group size, ranging, fecundity, and parasite dynamics in four groups of the Tana River mangabey (Cercocebus galeritus). Two groups occupied a forest disturbed by human activities, while the other two occupied a forest with no human disturbance. We predicted that the groups in the disturbed forest would be smaller, travel longer distances daily, and have larger home ranges due to low food tree abundance. Consequently, these groups would have lower fecundity and higher parasite prevalence and richness (number of parasite species). We measured the abundance of food trees and anthropogenic activity in the forests, the groups' daily travel distances and home range sizes, and censused social groups over 12 months. We also analyzed fecal samples for gastrointestinal parasites from three of the groups. The disturbed forest had a lower abundance of food trees, and groups in this forest traveled longer distances, had larger home range sizes, were smaller, and had lower fecundity. The groups in the disturbed forest had higher, although not statistically significant, parasite prevalence and richness. This study contributes to a better understanding of how anthropogenic habitat change influences fecundity and parasite infections in primates. Our results also emphasize the strong influence of habitat quality in determining daily travel distance and home range size in primates. Am J Phys Anthropol, 2009. © 2009 Wiley‐Liss, Inc.
Synthesis, Antibacterial and Antifungal Activities of Novel 1,2,4‐Triazolium Derivatives
Authors: Luo Yan , Lu Yi‐Hui , Gan Lin‐Ling , Zhou Cheng‐He , Wu Jun , Geng Rong‐Xia , Zhang Yi‐Yi
Published: June 2009

A series of novel 1,2,4‐triazolium derivatives was synthesized starting from commercially available 1H‐1,2,4‐triazole, 2,4‐dichlorobenzyl chloride, or 2,4‐difluorobenzyl bromide. Their antibacterial and antifungal activities were evaluated against Staphylococcus aureus ATCC 29213, Escherichia coli ATCC 25922, Bacillus proteus, Bacillus subtilis, Pseudomonas aeruginosa, Candida albicans ATCC 76615, and Aspergillus fumigatus. All structures of the new compounds were confirmed by NMR, IR, and MS spectra, and elemental analyses. The antimicrobial tests showed that most of synthesized triazolium derivatives exhibit significant antibacterial and antifungal activities in vitro. 1‐(2,4‐Difluorobenzyl)‐4‐dodecyl‐1H‐1,2,4‐triazol‐4‐ium bromide and 1‐(2,4‐Dichlorobenzyl)‐4‐dodecyl‐1H‐1,2,4‐ triazol‐4‐ium bromide were the most potent compounds against all tested strains with the MIC values ranging from 1.05 to 8.38 μM. They exhibited much stronger activities than the standard drugs chloramphenicol and fluconazole which are in clinical use. The results also showed that the antimicrobial activities of triazolium derivatives depend upon the type of substituent, the length of the alkyl chain, and the number of triazolium rings.
Design, Synthesis, and Biological Evaluation of Prenylated Chalcones as Vasorelaxant Agents
Authors: Dong Xiaowu , Chen Jing , Jiang Chaoyi , Liu Tao , Hu Yongzhou
Published: June 2009

Five prenylated chalcones and one allylated chalcone were prepared according to the analysis based on support vector machine (SVM) classification model. Most of the synthesized chalcones showed potent vasorelaxant activities through evaluation in aortic rings with the endothelium pre‐contracted by phenylephrine (PE), indicating that the experimental activities were in good agreement with the theoretical ones. Structure‐activity relationship of these compounds showed that the substituent pattern and number of hydroxyl groups were crucial for their vasorelaxant activities and that the replacement of prenyl group with allyl group retained the potent activity.
Synthesis and Antibacterial Activities of Eperezolid Analogs with Glycinyl Substitutions
Authors: Wang Xiao‐Jun , Wu Ning , Du Guang‐Jian , Zhao Shuang‐Qi , Yan Ming , Gu Lian‐Quan
Published: June 2009

A series of eperezolid analogs with glycinyl substitutions were prepared and their antibacterial activities were studied against a panel of susceptible and resistant Gram‐positive bacteria. The compounds with N‐arylacyl or N‐heteroarylacyl glycinyl structural units showed good antibacterial activities. The compounds 11b, 11c, and 11e were twofold more active than linezolid against Staphylococcus epidermidis and Enterococcus faecalis. Several pyridine analogs were also prepared and found to have poor antibacterial activity against most of the tested Gram‐positive bacteria, however, one of the compounds 12e showed very high activity against Enterococcus faecalis.
Design of tRNALys3 Ligands: Fragment Evolution and Linker Selection Guided by NMR Spectroscopy
Authors: Chung Florence , Tisné Carine , Lecourt Thomas , Seijo Bili , Dardel Frédéric , Micouin Laurent
Published: June 2009

A fragment‐based approach for the synthesis of ligands of tRNALys3, the HIV reverse‐transcription primer, is described. The use of NMR spectroscopy has proved to be very useful in this approach, not only to detect low‐affinity complexes between small compounds and RNA, but also to provide information on their binding mode and on the way they can be connected. This NMR‐spectroscopy‐guided analysis enabled us to design micromolar ligands after the optimisation and connection of millimolar fragments with an appropriate linker. The influence of the linker region on the binding affinity and selectivity outlines the importance of having a flexible assemblage strategy with a variety of linkers in such an approach.
Emissive or Nonemissive? A Theoretical Analysis of the Phosphorescence Efficiencies of Cyclometalated Platinum(II) Complexes
Authors: Tong Glenna So‐Ming , Che Chi‐Ming
Published: June 2009

We herein report a theoretical analysis based on a density functional theory/time‐dependent density functional theory (DFT/TDDFT) approach to understand the different phosphorescence efficiencies of a family of cyclometalated platinum(II) complexes: [Pt(NCN)Cl] (1; NCN=1,3‐bis(2‐pyridyl)phenyl−), [Pt(CNN)Cl] (2; CNN=6‐phenyl‐2,2′‐bipyridyl−), [Pt(CNC)(CNPh)] (3; CNC=2,6‐diphenylpyridyl2−), [Pt(R‐CNN)Cl] (4; R‐CNN=3‐(6′‐(2′′‐naphthyl)‐2′‐pyridyl)isoquinolinyl−), and [Pt(R‐CNC)(CNPh)] (5; R‐CNC=2,6‐bis(2′‐naphthyl)pyridyl2−). By considering both the spin–orbit coupling (SOC) and the electronic structures of these complexes at their respective optimized singlet ground (S0) and first triplet (${{\rm T}{{1\hfill \atop {\rm opt}\hfill}}}$) excited states, we were able to rationalize the experimental findings that 1) 1 is a strong emitter while its isomer 2 is only weakly emissive in CH2Cl2 solution at room temperature; 2) although the cyclometalated ligand of 3 has a higher ligand‐field strength than that of 1, 3 is nonemissive in CH2Cl2 solution at 298 K; and 3) extension of π conjugation at the lateral aryl rings of the cyclometalated ligands of 2 and 3 to give 4 and 5, respectively, leads to increased emission quantum yields under the same conditions. We found that Jahn–Teller and pseudo‐Jahn–Teller effects are operative in complexes 2 and 3, respectively, on going from the optimized S0 ground state to the optimized ${{\rm T}{{1\hfill \atop {\rm opt}\hfill}}}$ excited state, and thus lead to large excited‐state structural distortions and hence fast nonradiative decay. Furthermore, a strong‐field ligand may push the two different occupied d orbitals so far apart that the SOC effect is small and the radiative decay rate is slow. This work is an example of electronic‐structure‐driven tuning of the phosphorescence efficiency, and the DFT/TDDFT approach is demonstrated to be a versatile tool for the design of phosphorescent materials with target characteristics.
Multicomponent Supramolecular Systems: Self‐Organization in Coordination‐Driven Self‐Assembly
Authors: Zheng Yao‐Rong , Yang Hai‐Bo , Ghosh Koushik , Zhao Liang , Stang Peter J.
Published: June 2009

The self‐organization of multicomponent supramolecular systems involving a variety of two‐dimensional (2 D) polygons and three‐dimensional (3 D) cages is presented. Nine self‐organizing systems, SS1–SS9, have been studied. Each involves the simultaneous mixing of organoplatinum acceptors and pyridyl donors of varying geometry and their selective self‐assembly into three to four specific 2 D (rectangular, triangular, and rhomboid) and/or 3 D (triangular prism and distorted and nondistorted trigonal bipyramidal) supramolecules. The formation of these discrete structures is characterized using NMR spectroscopy and electrospray ionization mass spectrometry (ESI‐MS). In all cases, the self‐organization process is directed by: 1)  the geometric information encoded within the molecular subunits and 2) a thermodynamically driven dynamic self‐correction process. The result is the selective self‐assembly of multiple discrete products from a randomly formed complex. The influence of key experimental variables ‐ temperature and solvent ‐ on the self‐correction process and the fidelity of the resulting self‐organization systems is also described.
Preparation of Polyfunctional Arylmagnesium, Arylzinc, and Benzylic Zinc Reagents by Using Magnesium in the Presence of LiCl
Authors: Piller Fabian M. , Metzger Albrecht , Schade Matthias A. , Haag Benjamin A. , Gavryushin Andrei , Knochel Paul
Published: June 2009

The presence of LiCl considerably facilitates the insertion of magnesium into various aromatic and heterocyclic bromides. Several functional groups, such as ‐OBoc, ‐OTs, ‐Cl, ‐F, ‐CF3, ‐OMe, ‐NMe2, and ‐N2NR2, are well tolerated. The presence of a cyano group leads in some cases to competitive reduction of the organic halide to the corresponding ArH compound. The presence of sensitive groups such as methyl or ethyl ester is tolerated upon in situ trapping of the intermediate magnesium reagent with ZnCl2. This method can also be applied to the preparation of functionalized benzylic zinc reagents from benzylic chlorides. In the case of di‐ or tribromoaryl derivatives, directing groups such as ‐OPiv, ‐OTs, ‐N2NR2, or ‐OAc orient the zinc insertion (Zn/LiCl) to the ortho‐position, while the reaction with Mg/LiCl or Mg/LiCl/ZnCl2 leads to regioselective insertion into the para‐carbon–bromine bond. Large‐scale experiments (20–100 mmol) for all of the metalation procedures are described.
Preparation of 2‐Quinolones by Sequential Heck Reduction–Cyclization (HRC) Reactions by Using a Multitask Palladium Catalyst
Authors: Felpin François‐Xavier , Coste Jérôme , Zakri Cécile , Fouquet Eric
Published: June 2009

One‐pot sequential Heck reduction–cyclization (HRC) reactions leading to the synthesis of substituted 2‐quinolones have been developed by using a heterogeneous or mixed homogeneous/heterogeneous multitask palladium catalyst with charcoal as a support. The whole sequence occurs under very mild conditions without the need for additives (ligand or base) by taking advantage of the high reactivity of aryldiazonium salts as “super electrophiles”. Recycling experiments showed that the reused heterogeneous Pd0/C catalyst was not able to promote another HRC sequence but was, however, still highly active for hydrogenation, hydrodehalogenation, as well as hydrogenolysis reactions.
Molecular Nitrides with Titanium and Group 13–15 Elements
Authors: García‐Castro María , Martín Avelino , Mena Miguel , Yélamos Carlos
Published: June 2009

Several heterometallic nitrido complexes were prepared by reaction of the imido–nitrido titanium complex [{Ti(η5‐C5Me5)(μ‐NH)}3(μ3‐N)] (1) with amido derivatives of Group 13–15 elements. Treatment of 1 with bis(trimethylsilyl)amido [M{N(SiMe3)2}3] derivatives of aluminum, gallium, or indium in toluene at 150–190 °C affords the single‐cube amidoaluminum complex [{(Me3Si)2N}Al{(μ3‐N)2(μ3‐NH)Ti3(η5‐C5Me5)3(μ3‐N)}] (2) or the corner‐shared double‐cube compounds [M(μ3‐N)3(μ3‐NH)3{Ti3(η5‐C5Me5)3(μ3‐N)}2] [M=Ga (3), In (4)]. Complexes 3 and 4 were also obtained by treatment of 1 with the trialkyl derivatives [M(CH2SiMe3)3] (M=Ga, In) at high temperatures. The analogous reaction of 1 with [{Ga(NMe2)3}2] at 110 °C leads to [{Ga(μ3‐N)2(μ3‐NH)Ti3(η5‐C5Me5)3(μ3‐N)}2] (5), in which two [GaTi3N4] cube‐type moieties are linked through a gallium–gallium bond. Complex 1 reacts with one equivalent of germanium, tin, or lead bis(trimethylsilyl)amido derivatives [M{N(SiMe3)2}2] in toluene at room temperature to give cube‐type complexes [M{(μ3‐N)2(μ3‐NH)Ti3(η5‐C5Me5)3(μ3‐N)}] [M=Ge (6), Sn (7), Pb (8)]. Monitoring the reaction of 1 with [Sn{N(SiMe3)2}2] and [Sn(C5H5)2] by NMR spectroscopy allows the identification of intermediates [RSn{(μ3‐N)(μ3‐NH)2Ti3(η5‐C5Me5)3(μ3‐N)}] [R=N(SiMe3)2 (9), C5H5 (10)] in the formation of 7. Addition of one equivalent of the metalloligand 1 to a solution of lead derivative 8 or the treatment of 1 with a half equivalent of [Pb{N(SiMe3)2}2] afford the corner‐shared double‐cube compound [Pb(μ3‐N)2(μ3‐NH)4{Ti3(η5‐C5Me5)3(μ3‐N)}2] (11). Analogous antimony and bismuth derivatives [M(μ3‐N)3(μ3‐NH)3{Ti3(η5‐C5Me5)3(μ3‐N)}2] [M=Sb (12), Bi (13)] were obtained through the reaction of 1 with the tris(dimethylamido) reagents [M(NMe2)3]. Treatment of 1 with [AlCl2{N(SiMe3)2}(OEt2)] affords the precipitation of the singular aluminum–titanium square‐pyramidal aggregate [{{(Me3Si)2N}Cl3Al2}(μ3‐N)(μ3‐NH)2{Ti3(η5‐C5Me5)3(μ‐Cl)(μ3‐N)}] (14). The X‐ray crystal structures of 5, 11, 13, 14, and [AlCl{N(SiMe3)2}2] were determined.
Chemoselective Aromatic Azido Reduction with Concomitant Aliphatic Azide Employing Al/Gd Triflates/NaI and ESI‐MS Mechanistic Studies
Authors: Kamal Ahmed , Markandeya Nagula , Shankaraiah Nagula , Reddy C. Ratna , Prabhakar S. , Reddy C. Sanjeeva , Eberlin Marcos N. , Silva Santos Leonardo
Published: June 2009

Aluminium and gadolinium triflates catalyze the chemoselective reduction of aromatic azides to the corresponding amines in combination with sodium iodide. This mild chemoselective method has been applied to the synthesis of various aryl amines, C2‐azido‐substituted pyrrolo[2,1‐c][1,4]benzodiazepines, and fused[2,1‐b]quinazolinones by an intramolecular azido reduction tandem cyclization reaction. Interestingly, this methodology selectively reduces aryl azides with enhanced yields and proceeds in shorter reaction times than previous strategies. The mechanistic aspects have been investigated and the intermediates associated with this selective transformation have been intercepted and characterized by online monitoring of the reaction by ESI‐MS.
Role of the Support in Catalysis: Activation of a Mononuclear Ruthenium Complex for Ethene Dimerization by Chemisorption on Dealuminated Zeolite Y
Authors: Ogino Isao , Gates Bruce C.
Published: June 2009

A set of supported ruthenium complexes with systematically varied ratios of chemisorbed to physisorbed species was formed by contacting cis‐[Ru(acac)2(C2H4)2] (I; acac=C5H7O2−) with dealuminated zeolite Y. Extended X‐ray absorption fine structure (EXAFS) spectra used to characterize the samples confirmed the systematic variation in the loadings of the two supported species and demonstrated that removal of bidentate acac ligands from I accompanied chemisorption to form [Ru(acac)(C2H4)2]+ attached through two RuO bonds to the Al sites of the zeolite. A high degree of uniformity in the chemisorbed species was demonstrated by sharp bands in the infrared (IR) spectrum characteristic of ruthenium dicarbonyls that formed when CO reacted with the anchored complex. When the ruthenium loading exceeded 1.0 wt % (Ru/Al≈1:6), the additional adsorbed species were simply physisorbed. Ethene ligands on the chemisorbed species reacted to form butenes when the temperature was raised to approximately 393 K; acac ligands remained bonded to Ru. In contrast, ethene ligands on the physisorbed complex simply desorbed under the same conditions. The chemisorption activated the ruthenium complex and facilitated dimerization of the ethene, which occurred catalytically. IR and EXAFS spectra of the supported samples indicate that 1) Ru centers in the chemisorbed species are more electron deficient than those in the physisorbed species and 2) Ru–ethene bonds in the chemisorbed species are less symmetric than those in the physisorbed species, which implies the presence of a preferred configuration for the catalytic dimerization.
Cationic Heterocycles as Ligands: Synthesis and Reactivity with Anionic Nucleophiles of Cationic Triruthenium Clusters Containing C‐Metalated N‐Methylquinoxalinium or N‐Methylpyrazinium Ligands
Authors: Cabeza Javier A. , del Río Ignacio , Goite María C. , Pérez‐Carreño Enrique , Pruneda Vanessa
Published: June 2009

The cationic cluster complexes [Ru3(CO)10(μ‐H)(μ‐κ2N,C‐L1Me)]+ (3+; HL1=quinoxaline) and [Ru3(CO)10(μ‐H)(μ‐κ2N,C‐L2Me)]+ (5+; HL2=pyrazine) have been prepared as triflate salts by treatment of their neutral precursors [Ru3(CO)10(μ‐H)(μ‐κ2N,C‐Ln)] with methyl triflate. The cationic character of their heterocyclic ligands is responsible for their enhanced tendency to react with anionic nucleophiles relative to that of hydrido triruthenium carbonyl clusters that have neutral N‐heterocyclic ligands. These clusters react instantaneously with methyl lithium and potassium tris‐sec‐butylborohydride (K‐selectride) to give neutral products that contain novel nonaromatic N‐heterocyclic ligands. The following are the products that have been isolated: [Ru3(CO)9(μ‐H)(μ3‐κ2N,C‐L1Me2)] (6; from 3+ and methyl lithium), [Ru3(CO)9(μ‐H)(μ3‐κ2N,C‐L1HMe)] (7; from 3+ and K‐selectride), [Ru3(CO)9(μ‐H)(μ3‐κ2N,C‐L2Me2)] (8; from 5+ and methyl lithium), and [Ru3(CO)9(μ‐H)(μ3‐κ2N,C‐L2HMe)] (11; from 5+ and K‐selectride). Whereas the reactions of 3+ lead to products that arise from the attack of the corresponding nucleophile at the C atom of the only CH group adjacent to the N‐methyl group, the reactions of 5+ give mixtures of two products that arise from the attack of the nucleophile at one of the C atoms located on either side of the N‐methyl group. The LUMOs and the atomic charges of 3+ and 5+ confirm that the reactions of these clusters with anionic nucleophiles are orbital‐controlled rather than charge‐controlled processes. The N‐heterocyclic ligands of all of these neutral products are attached to the metal atoms in nonconventional face‐capping modes. Those of compounds 6–8 have the atoms of a ligand CN fragment σ‐bonded to two Ru atoms and π‐bonded to the other Ru atom, whereas the ligand of compound 11 has a CN fragment attached to a Ru atom through the N atom and to the remaining two Ru atoms through the C atom. A variable‐temperature 1H NMR spectroscopic study showed that the ligand of compound 7 is involved in a fluxional process at temperatures above −93 °C, the mechanism of which has been satisfactorily modeled with the help of DFT calculations and involves the interconversion of the two enantiomers of this cluster through a conformational change of the ligand CH2 group, which moves from one side of the plane of the heterocyclic ligand to the other, and a 180° rotation of the entire organic ligand over a face of the metal triangle.
ChemInform Abstract: The Smallest “Aurophilic Species”.
Authors: Berger Raphael J. F.
Published: June 2009

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 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: Growth Mechanism and Chemical Bonding in Scandium‐Doped Copper Clusters: Experimental and Theoretical Study in Concert.
Authors: Hoeltzl Tibor , Veldeman Nele , De Haeck Jorg , Veszpremi Tamas , Lievens Peter , Nguyen Minh Tho
Published: June 2009

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 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: Controllable Red, Green, Blue (RGB) and Bright White Upconversion Luminescence of Lu2O3:Yb3+/Er3+/Tm3+ Nanocrystals Through Single Laser Excitation at 980 nm.
Authors: Yang Jun , Zhang Cuimiao , Peng Chong , Li Chunxia , Wang Lili , Chai Ruitao , Lin Jun
Published: June 2009

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 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: Comparative XANES Study on the Two Electron‐Doped High‐Tc Superconductor Systems, (Sr,La)CuO2 and (Nd,Ce)2CuO4.
Authors: Tanaka Y. , Karppinen M. , Chen J. M. , Liu R. S. , Yamauchi H.
Published: June 2009

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 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: Metamagnetic Transition in the 75 K Antiferromagnet Gd4Co2Mg3.
Authors: Gorsse S. , Chevalier B. , Tuncel S. , Poettgen R.
Published: June 2009

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 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: Orbital Hybridization and Magnetic Coupling of the A‐Site Cu Spins in CaCu3B4O12 (B: Ti, Ge, and Sn) Perovskites.
Authors: Mizumaki M. , Saito T. , Shiraki H. , Shimakawa Y.
Published: June 2009

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 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: Cationic Clathrate I Si46‐xPxTey (6.6(1) ≤ y ≤ 7.5(1), x ≤ 2y): Crystal Structure, Homogeneity Range, and Physical Properties.
Authors: Zaikina J. V. , Kovnir K. A. , Burkhardt U. , Schnelle W. , Haarmann F. , Schwarz U. , Grin Yu. , Shevelkov A. V.
Published: June 2009

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 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: Single‐Crystal Structure Determination and Solid‐State NMR Investigations of Lithium Nitridosilicate Li2SiN2 Synthesized by a Precursor Approach Employing Amorphous “Si(CN2)2”.
Authors: Pagano Sandro , Zeuner Martin , Hug Stephan , Schnick Wolfgang
Published: June 2009

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 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: How Much Water Does Calcined Gypsum Contain?
Authors: Weiss Horst , Braeu Michael F.
Published: June 2009

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 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 Eu Activated ZnMgAl10O17 Nanophosphor.
Authors: Deshmukh Abhay D. , Dhoble S. J. , Kumar Animesh , Godbole S. V. , Bhide M. K. , Peshwe D. R.
Published: June 2009

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 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 Rare‐Earth Metal(III) Fluoride Oxoselenates(IV) MF[SeO3] (M: Y, Ho—Lu) with YF[SeO3]‐Type Structure.
Authors: Lipp Christian , Schleid Thomas
Published: June 2009

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 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: Pr2CBr: A Ferromagnet with Pr2C Layers.
Authors: Mattausch Hansjuergen , Kremer Reinhard K. , Simon Arndt
Published: June 2009

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 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: EuKNaTaO5: Crystal Growth, Structure and Photoluminescence Property.
Authors: Roof Irina P. , Smith Mark D. , Park Sangmoon , zur Loye Hans‐Conrad
Published: June 2009

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 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: Plasmonic Cu2‐xS Nanocrystals: Optical and Structural Properties of Copper‐Deficient Copper(I) Sulfides.
Authors: Zhao Yixin , Pan Hongcheng , Lou Yongbing , Qiu Xiaofeng , Zhu JunJie , Burda Clemens
Published: June 2009

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 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: Electro Organic Synthesis Utilizing Mg Electrodes(III) — E.O.S. Hydrogenation of Stilbene Equivalent to Catalytic Hydrogenation.
Authors: Jang Younsun , Lee Taesung , Kim Hongbum
Published: June 2009

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 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: Continuous‐Flow Microreactor Chemistry under High‐Temperature/Pressure Conditions.
Authors: Razzaq Tahseen , Glasnov Toma N. , Kappe C. Oliver
Published: June 2009

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 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: Catalytic Asymmetric Electrophilic α‐Amination of β‐Ketoesters in the Presence of Chiral Nickel Complexes.
Authors: Mang Joo Yang , Kwon Dae Gil , Kim Dae Young
Published: June 2009

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 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: Rhodium‐Catalyzed Conjugate Addition of Sb‐Aryl‐1,5‐azastibocines to α,β‐Unsaturated Carbonyl Compounds.
Authors: Kakusawa Naoki , Yasuike Shuji , Kurita Jyoji
Published: June 2009

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 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 Entry to [4 + 2] Cycloadditions Involving 5‐Amino‐2‐furanmethanols.
Authors: Medimagh Raouf , Marque Sylvain , Prim Damien , Chatti Saber
Published: June 2009

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 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: Au(I)‐Catalyzed Cycloisomerizations Terminated by sp3 C—H Bond Insertion.
Authors: Horino Yoshikazu , Yamamoto Takuya , Ueda Kohki , Kuroda Shigeyasu , Toste F. Dean
Published: June 2009

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 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: Unexpected Mode of Reactivity in Nitrosation of cis‐1,1‐Dichloro‐2,3‐diphenylcyclopropane with NOCl·2SO3.
Authors: Bondarenko Oksana B. , Gavrilova Anna Yu. , Polunina Veranika V. , Starikova Zoya A. , Zyk Nikolai V. , Zefirov Nikolai S.
Published: June 2009

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 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 Baeyer—Villiger Oxidation of Ketones with Bis(trimethylsilyl) Peroxide in the Presence of Ionic Liquids as the Solvent and Catalyst.
Authors: Baj Stefan , Chrobok Anna , Slupska Roksana
Published: June 2009

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 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: Simple and Efficient Methods for Selective Preparation of α‐Mono or α,α‐Dichloro Ketones and β‐Ketoesters by Using DCDMH.
Authors: Chen Zizhan , Zhou Bin , Cai Huihua , Zhu Wei , Zou Xinzhuo
Published: June 2009

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 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: Micellar System Mediated Direct Fluorination of Ketones in Water.
Authors: Stavber Gaj , Zupan Marko , Stavber Stojan
Published: June 2009

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 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: Decarboxylative Protonation of Allyl Ester Catalyzed by Pt and Ru.
Authors: Gowrisankar Saravanan , Kim Eun Sun , Kim Jae Nyoung
Published: June 2009

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 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: Catalyst‐Free Water‐Mediated N‐Boc Deprotection.
Authors: Wang Gan , Li Chunjun , Li Jian , Jia Xueshun
Published: June 2009

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 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: Mild and Efficient Deprotection of Acetal‐Type Protecting Groups of Hydroxyl Functions by Triethylsilyl Triflate—2,4,6‐Collidine Combination.
Authors: Fujioka Hiromichi , Kubo Ozora , Okamoto Kazuhisa , Senami Kento , Okitsu Takashi , Ohnaka Takuya , Sawama Yoshinari , Kita Yasuyuki
Published: June 2009

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 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 Synthesis of β‐Enaminoesters via Highly Stereoselective Reformatsky Reaction with Disubstituted Formamides as Novel Electrophiles.
Authors: Ke Yi‐Yin , Li Yu‐Jin , Jia Jian‐Hong , Sheng Wei‐Jian , Han Liang , Gao Jian‐Rong
Published: June 2009

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 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: Renewable Materials as Precursors of Linear Nitrile Acid Derivatives via Cross‐Metathesis of Fatty Esters and Acids with Acrylonitrile and Fumaronitrile.
Authors: Malacea Raluca , Fischmeister Cedric , Bruneau Christian , Dubois Jean‐Luc , Couturier Jean‐Luc , Dixneuf Pierre H.
Published: June 2009

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 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: Versatile Synthesis of Pentalene Derivatives via the Pd‐Catalyzed Homocoupling of Haloenynes.
Authors: Levi Zerubba U. , Tilley T. Don
Published: June 2009

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 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 Synthesis and Subsequent Transformations of Phenylsulfanylbicyclo[2.2.2]octenones and Phenylselenylbicyclo[2.2.2]octenones.
Authors: Gao Shih‐Yu , Chittimalla Santhosh Kumar , Chuang Gary Jing , Liao Chun‐Chen
Published: June 2009

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 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: Thieme Chemistry Journal Awardees — Where Are They Now? A General One‐Step Synthesis of Alkynes from Enolizable Carbonyl Compounds.
Authors: Lyapkalo Ilya M. , Vogel Michael A. K. , Boltukhina Ekaterina V. , Vavrik Jiri
Published: June 2009

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 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 Monofluorophenols via the Reaction of Difluorobenzene Derivatives with Potassium Trimethylsilanoate.
Authors: Li Jianqing , Smith Daniel , Qiao Jennifer X. , Huang Stella , Krishnananthan Subramaniam , Wong Henry S. , Salvati Mark E. , Balasubramanian Balu N. , Chen Bang‐Chi
Published: June 2009

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 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 Diastereoselective Addition of Allyltitanocenes to Ketones.
Authors: Yatsumonji Yasutaka , Nishimura Takuya , Tsubouchi Akira , Noguchi Keiichi , Takeda Takeshi
Published: June 2009

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 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 Facile Indium‐Mediated Synthesis of Protected and Unprotected [1‐(Hydroxymethyl)vinyl]alkanols.
Authors: Moirangthem Nimalini D. , Thingom Bhavna , Laitonjam Warjeet S.
Published: June 2009

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 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: Regio‐ and Stereoselective Heck α‐Arylation of Cinnamyl Alcohols.
Authors: Ambrogio Ilaria , Cacchi Sandro , Fabrizi Giancarlo , Goggiamani Antonella , Sgalla Simona
Published: June 2009

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 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: Cyclohexane‐1,2‐diamines: Efficient Catalysts for the Enantioselective Conjugate Addition of Ketones to Nitro Olefins.
Authors: Rasappan Ramesh , Reiser Oliver
Published: June 2009

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 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: 1,6‐Conjugate Addition of Boronic Acids to 2‐Allylidenemalonates.
Authors: de la Harran Gabriela , Csaky Aurelio G.
Published: June 2009

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 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: B(OMe)3 as a Nonacidic Iminium Ion Generator in Mannich‐ and Ugi‐Type Reactions.
Authors: Tanaka Yusuke , Hidaka Kousuke , Hasui Tomoaki , Suginome Michinori
Published: June 2009

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 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 Evaluation of Chiral Dibenzazepinium Halide Phase‐Transfer Catalysts.
Authors: Lygo Barry , Allbutt Bryan , Beaumont Douglas J. , Butt Umar , Gilks James A. R.
Published: June 2009

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 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 Symmetrical Carboxylic Acid Anhydrides from Acyl Chlorides in the Presence of In Metal and DMF.
Authors: Kim Joong‐Gon , Jang Doo Ok
Published: June 2009

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 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: Pd‐PEPPSI‐IPent: An Active, Sterically Demanding Cross‐Coupling Catalyst and Its Application in the Synthesis of Tetra‐ortho‐Substituted Biaryls.
Authors: Organ Michael G. , Calimsiz Selcuk , Sayah Mahmoud , Hoi Ka Hou , Lough Alan J.
Published: June 2009

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 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: Manganese‐Catalyzed Oxidative Homocoupling of Aryl Grignard Chlorides.
Authors: Zhou Zhiming , Xue Weizhe
Published: June 2009

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 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: MoO2Cl2 as a Novel Catalyst for Friedel—Crafts Acylation and Sulfonylation.
Authors: de Noronha Rita G. , Fernandes Ana C. , Romao Carlos C.
Published: June 2009

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 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 Functionalized Triarylmethanes Based on a “FeCl3‐Catalyzed Benzylation/[3 + 3] Cyclocondensation” Strategy.
Authors: Ahmad Rasheed , Riahi Abdolmajid , Langer Peter
Published: June 2009

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 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 Enantioselective Zinc/Amino Alcohol‐Catalyzed Alkynylation of Aldehydes.
Authors: Zhong Jiang‐Chun , Hou Shi‐Cong , Bian Qing‐Hua , Yin Min‐Min , Na Ri‐Song , Zheng Bing , Li Zhi‐Yuan , Liu Shang‐Zhong , Wang Min
Published: June 2009

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 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.