bluuebunny/crossref_metadata_2025_split huggingface dataset:
ChemInform Abstract: Rhodium‐Catalyzed Allylation of Benzyl Acetates with Allylsilanes.
Authors: Onodera Gen , Yamamoto Eriko , Tonegawa Shota , Iezumi Makoto , Takeuchi Ryo 
Published: December 2011

AbstractPrimary, secondary and tertiary benzyl acetates can be used for the title reaction.
ChemInform Abstract: Sequential Reductive Amination—Hydrogenolysis: A One‐Pot Synthesis of Challenging Chiral Primary Amines.
Authors: Nugent Thomas C. , Negru Daniela E. , El‐Shazly Mohamed , Hu Dan , Sadiq Abdul , Bibi Ahtaram , Umar M. Naveed 
Published: December 2011

AbstractA chromatography‐free synthesis of chiral primary amines via a one‐pot reaction (imine formation, imine reduction, and hydrogenolysis of the auxiliary) is presented.
ChemInform Abstract: An Unusual Reaction of α‐Alkoxyphosphonium Salts with Grignard Reagents under an O2 Atmosphere.
Authors: Fujioka Hiromichi , Goto Akihiro , Otake Kazuki , Kubo Ozora , Sawama Yoshinari , Maegawa Tomohiro 
Published: December 2011

AbstractThe title reaction affords alcohols in moderate to high yields following a novel radical pathway as indicated by the results of isotopic labeling experiments.
ChemInform Abstract: Silver‐Mediated Trifluoromethoxylation of Aryl Stannanes and Arylboronic Acids.
Authors: Huang Chenghong , Liang Theresa , Harada Shinji , Lee Eunsung , Ritter Tobias 
Published: December 2011

AbstractAryl trifluoromethyl ethers are prepared by reaction of title tin or boron compounds with (Me2N)3S+CF3—O‐, generated in situ.
ChemInform Abstract: Simple and Efficient Nickel‐Catalyzed Cross‐Coupling Reaction of Alkynylalanes with Benzylic and Aryl Bromides.
Authors: Biradar Deepak B. , Gau Han‐Mou 
Published: December 2011

AbstractThe alkynylalanes (II) are prepared by deprotonation of the respective acetylenes with butyl lithium and subsequent addition of diethyl aluminum chloride.
ChemInform Abstract: Construction of Carbocyclic Ring of Indoles Using Ruthenium‐Catalyzed Ring‐Closing Olefin Metathesis.
Authors: Yoshida Kazuhiro , Hayashi Kazushi , Yanagisawa Akira 
Published: December 2011

AbstractThe new selective method to prepare various functionalized indoles can also be applied to synthesize carbazole derivatives.
ChemInform Abstract: A Novel Entry to Spirofurooxindoles Involving Tandem Dearomatization of Furan Ring and Intramolecular Friedel—Crafts Reaction.
Authors: Yin Biao‐Lin , Lai Jin‐Qinag , Zhang Ze‐Ren , Jiang Huan‐Feng 
Published: December 2011

AbstractThe key step involves an intramolecular Friedel—Crafts reaction of the tethered electron‐rich anilide with the oxocarbenium derived from the furan ring.
ChemInform Abstract: InCl3‐Assisted One‐Pot Synthesis of 1‐Aminocarbazoles.
Authors: Facoetti Diego , Abbiati Giorgio , Dell'Acqua Monica , Rossi Elisabetta 
Published: December 2011

AbstractA small library is prepared by three‐component reaction of propargylic alcohols with cyclic amines and 2‐acetylindole.
ChemInform Abstract: β‐Lactam Synthon Interceded Diastereoselective Synthesis of Novel Thioxo‐imidazolines: A Convenient Access to Functionally Decorated 4,5‐Dihydroimidazoles.
Authors: Singh Pardeep , Mehra Vishu , Anand Amit , Kumar Vipan , Mahajan Mohinder P. 
Published: December 2011

AbstractTarget compounds (V)/(VI) are prepared by NaOMe‐mediated amidolysis of lactam (I) followed by Staudinger reaction and treatment with carbon disulfide.
ChemInform Abstract: Strain‐Promoted Cycloadditions of Cyclic Nitrones with Cyclooctynes for Labeling Human Cancer Cells.
Authors: McKay Craig S. , Blake Jessie A. , Cheng Jenny , Danielson Dana C. , Pezacki John Paul 
Published: December 2011

AbstractCyclic nitrones react readily with cyclooctyne (II) to afford isoxazoline adducts in high yields.
ChemInform Abstract: Synthesis and Anticancer Evaluation of Novel 2‐Cyclopropylimidazo[2,1‐b][1,3,4]thiadiazole Derivatives.
Authors: Noolvi Malleshappa N. , Patel Harun M. , Singh Navjot , Gadad Andanappa K. , Cameotra Swaranjit Singh , Badiger Arvind 
Published: December 2011

AbstractAmong all the compounds, synthesized compound (VIb) is found to be the most active candidate with a degree of selectivity toward Leukemic cancer cell line.
ChemInform Abstract: Functional Ionic Liquid Mediated Synthesis (FILMS) of Dihydrothiophenes and Tacrine Derivatives.
Authors: Kumar Atul , Gupta Garima , Srivastava Suman 
Published: December 2011

AbstractThe diastereoselective synthesis of the title compounds (IV), (VI), (VIII), and (IX) is presented in a reusable ionic liquid which exhibits organocatalytic as well as medium engineering capability.
ChemInform Abstract: Access to Saturated Fused Pyrimidine Derivatives via a Flexible N‐Vinyl Tertiary Enamide Synthesis.
Authors: Estrada Anthony A. , Lyssikatos Joseph P. , St‐Jean Frederic , Bergeron Philippe 
Published: December 2011

AbstractProtection by the ‐Pmb group is crucial for a successful transformation which needs neither microwave irradiation nor reflux conditions.
ChemInform Abstract: Iron(III) Chloride/Diorganyl Diselenides‐Promoted Regioselective Cyclization of Alkynyl Aryl Ketones: Synthesis of 3‐Organoselenyl Chromenones under Ambient Atmosphere.
Authors: Godoi Benhur , Speranca Adriane , Bruning Cesar A. , Back Davi F. , Menezes Paulo Henrique , Nogueira Cristina W. , Zeni Gilson 
Published: December 2011

AbstractAn economic and eco‐friendly protocol for the synthesis of organoselenyl chromenones is developed.
ChemInform Abstract: (—)‐Hydroxylindestrenolide, a New Sesquiterpenoid from a Gorgonian Coral Menella sp. (Plexauridae).
Authors: Sung Ping‐Jyun , et al. et al. 
Published: December 2011

AbstractTitle compound (I), an enantiomer of the known sesquiterpenoid (+)‐hydroxylindestrenolide, is isolated from the gorgonian coral identified as Menella sp.
ChemInform Abstract: Propargyl/Methyl Furanosides as Potential Glycosyl Donors.
Authors: Vidadala Srinivara Rao , Gayatri Gaddamannugu , Sastry G. Narahari , Hotha Srinivas 
Published: December 2011

AbstractPropargyl as well as methyl furanosides smoothly undergo Au(III)‐catalyzed transglycosylation reactions.
ChemInform Abstract: N‐Methylimidazolium Chloride‐Catalyzed Pyrophosphate Formation: Application to the Synthesis of Lipid I and NDP‐Sugar Donors.
Authors: Tsukamoto Hirokazu , Kahne Daniel 
Published: December 2011

AbstractThe coupling reaction between monophosphate and activated phosphorous‐nitrogen intermediates such as phosphorimidazolide (I) and phosphoromorpholidate is effectively catalyzed by N‐methylimidazolium chloride to form biologically important unsymmetrical pyrophosphate diesters.
ChemInform Abstract: Bisbenzylisoquinoline Alkaloids from Nelumbo nucifera.
Authors: Itoh Atsuko , Saitoh Tomomi , Tani Kaori , Uchigaki Misaki , Sugimoto Yumi , Yamada Jun , Nakajima Hiroshi , Ohshiro Hideo , Sun Schujian , Tanahashi Takao 
Published: December 2011

AbstractFrom the embryos of the seeds of Nelumbo nucifera, three bisbenzylisoquinoline alkaloids, nelumboferine (I) and atropisomers nelumborines A and B [cf.
ChemInform Abstract: Trimethylsilyl Trifluoromethanesulfonate‐Promoted Reductive 2′‐O‐Arylmethylation of Ribonucleoside Derivatives.
Authors: Uchiyama Naoki , Ogata Toshihiko , Oka Natsuhisa , Wada Takeshi 
Published: December 2011

AbstractReaction conditions are optimized for the title reaction of ribonucleoside derivatives (I).
ChemInform Abstract: Synthesis of Metallic Nanoparticles Using Electrogenerated Reduced Forms of [α‐SiW12O40]4‐ as Both Reductants and Stabilizing Agents.
Authors: Zhang Jie , Ting Boon Ping , Koh Yan Tong , Ying Jackie Y. 
Published: December 2011

AbstractReduced forms of [α‐SiW12O40]4‐ are produced by controlled potential bulk electrolysis with little or no supporting electrolyte.
ChemInform Abstract: Employing Homoenolates Generated by NHC Catalysis in Carbon—Carbon Bond‐Forming Reactions: State of the Art
Authors: Nair Vijay , Menon Rajeev S. , Biju Akkattu T. , Sinu C. R. , Paul Rony Rajan , Jose Anu , Sreekumar Vellalath 
Published: December 2011

AbstractReview: 60 refs.
Characterisation of the mixing of non‐newtonian fluids with a scaba 6SRGT impeller through ert and CFD
Authors: Pakzad Leila , Ein‐Mozaffari Farhad , Upreti Simant R. , Lohi Ali 
Published: December 2011

AbstractAn attempt has been made to study the mixing of yield‐pseudoplastic fluids with a Scaba 6SRGT impeller using electrical resistance tomography (ERT) and computational fluid dynamics (CFD). The ERT system with four sensor planes, each containing 16 equispaced stainless steel electrodes, was used to measure the mixing time. The multiple reference frames (MRF) technique and the modified Herschel–Bulkley model were applied to simulate the impeller rotation and the rheological behaviour of the non‐Newtonian fluids, respectively. To validate the model, the CFD results for the power consumption were compared to the experimental data. The validated model was then employed to obtain further information regarding the averaged impeller shear rate, impeller circulation, and pumping capacities. The CFD and ERT data were utilised to investigate the effect of the impeller power, fluid rheology, and impeller size on the mixing time. The mixing time results obtained in this study were in good agreement with those reported in the literature. © 2011 Canadian Society for Chemical Engineering
Improved Synthesis of 1,3‐Diaryl‐2‐propen‐1‐one Oxime in the Presence of Anhydrous Sodium Sulfate
Authors: Xu Xiaoya , Li Jitai , Du Chao , Song Yali 
Published: December 2011

AbstractSynthesis of 1,3‐diaryl‐2‐propen‐1‐one oxime via the condensation of 1,3‐diaryl‐2‐propen‐1‐one with hydroxylamine hydrochloride in the presence of anhydrous sodium sulfate was carried out in refluxing EtOH for 2–4 h in 83%–93% yields. The significant features of the present procedure include higher yield, shorter reaction time, reduced molar ratio of hydroxylamine hydrochloride to substrate, compared to the reported literature method.
FeCl3‐ and GaCl3‐Catalyzed Dehydrative Coupling Reaction of Chromone‐Derived Morita‐Baylis‐Hillman Alcohols with Terminal Alkynes
Authors: Wu Chen , Zeng Hao , Liu Zhe , Liu Li , Wang Dong , Chen Yongjun 
Published: December 2011

AbstractFeCl3‐ and GaCl3‐catalyzed dehydrative coupling reactions of chromone‐derived Morita‐Baylis‐Hillman (MBH) alcohols with terminal alkynes were developed. The reactions provided exclusively α‐regioselective and acetylene‐substituted products in good yields.
Synthesis and Characterization of New Thienopyrazine‐cored Dendrimer for Non‐Doped Organic Red Light‐Emitting Diodes
Authors: Li Qing , Li Jiuyan , Duan Yongheng , Gao Zhanxian , Liu Di 
Published: December 2011

AbstractA new thieno‐[3,4‐b]‐pyrazine‐cored dendrimer with polyphenyls dendrons (D2TP) was designed and synthesized for application as red emitter in non‐doped organic light‐emitting diodes (OLEDs). The bulky dendritic arms enable this molecule to possess significant molecular weight and good solubility in common organic solvents. As a result, D2TP is suitable for solution processing methods such as spin coating to make thin films and devices. In addition, these large dendrons provide site‐isolation effect on the planar emissive core to prevent fluorescence quenching or intermolecular interaction. The photophysical and electrochemical properties of D2TP were investigated in its dilute solutions. D2TP was used as non‐doped emitter to fabricate OLEDs by spin coating method and saturated red electroluminescence was obtained.
Resource analyses for parallel and distributed coordination
Authors: Trinder P. W. , Cole M. I. , Hammond K. , Loidl H‐W. , Michaelson G. J. 
Published: December 2011

SUMMARYPredicting the resources that are consumed by a program component is crucial for many parallel or distributed systems. In this context, the main resources of interest are execution time, space and communication/synchronisation costs. There has recently been significant progress in resource analysis technology, notably in type‐based analyses and abstract interpretation. At the same time, parallel and distributed computing are becoming increasingly important.This paper synthesises progress in both areas to survey the state‐of‐the‐art in resource analysis for parallel and distributed computing. We articulate a general model of resource analysis and describe parallel/distributed resource analysis together with the relationship to sequential analysis. We use three parallel or distributed resource analyses as examples and provide a critical evaluation of the analyses. We investigate why the chosen analysis is effective for each application and identify general principles governing why the resource analysis is effective. Copyright © 2011 John Wiley & Sons, Ltd.
Fordlândia: Corporate Citizenship or Corporate Colonialism
Authors: Barkemeyer Ralf , Figge Frank 
Published: December 2011

ABSTRACTThis case focuses on the social dimension of a large‐scale plantation project of Ford Motors Company in Brazil. With its Fordlândia plantation, Henry Ford aimed to trigger an industrial revolution in the Amazon basin just like he had done in the United States two decades earlier. However, upon arrival, the company encountered unforeseen challenges linked to the attempted export of the Ford way of thinking and doing business – that had worked so well at home in Michigan – into the remote and underdeveloped Amazon basin. Yet, when failure became clear, the company decided to buy a new stretch of land nearby with the intent of reconsidering its way of doing business at the plantation. At its new operations, the company needed to better balance the trade‐off between its own core values and those of its local workforce. The case is suitable for both undergraduate and graduate management courses as well as a wider audience. Copyright © 2011 John Wiley & Sons, Ltd and ERP Environment.
A two‐step up‐scaling method for mapping runoff and sediment production from pasture and woody encroachment on semi‐arid hillslopes
Authors: Muñoz‐Robles Carlos , Tighe Matthew , Reid Nick , Frazier Paul , Briggs Sue V. , Wilson Brian 
Published: December 2011

ABSTRACTManagement of woody encroachment and pasture to reduce runoff and sediment production is important in semi‐arid areas. However, the study of relationships between vegetation and surface hydrology at hillslope scale is difficult because of cost and time constraints. Up‐scaling eco‐hydrological responses measured at fine scale can overcome these constraints and provide insights into runoff and erosion at scales relevant to management. In this study, runoff and sediment production were modelled on two adjacent hillslopes, one with woody encroachment (3500 stems ha−1) and the other a volunteer pasture cultivated to oats 18 months previously. Spatial modelling was undertaken to integrate small‐plot (1 m2) rainfall simulation, slope and the spatial distribution of ground cover. The estimates of runoff and sediment production in the woody hillslope were considerably lower than in the pasture hillslope in both years of the study. Runoff and sediment production in the woody hillslope were similar in consecutive years, whereas the estimates of runoff and sediment production in the pasture hillslope were lower in the second year as a result of the establishment of a water spreading system of contour banks. The results showed the importance of measuring patchiness and connectivity of runoff source areas for runoff and sediment production. The spatial modelling approach allowed a description of fine‐scale, surface eco‐hydrological interactions on hillslopes, based on high resolution spatial data and experimental fine‐scale rainfall simulations. A similar modelling approach could be used to explore runoff and sediment production resulting from varying management of semi‐arid lands. Copyright © 2011 John Wiley & Sons, Ltd.
Analysis of exosome release and its prognostic value in human colorectal cancer
Authors: Silva J. , Garcia V. , Rodriguez M. , Compte M. , Cisneros E. , Veguillas P. , Garcia J. M. , Dominguez G. , Campos‐Martin Y. , Cuevas J. , Peña C. , Herrera M. , Diaz R. , Mohammed N. , Bonilla F. 
Published: December 2011

AbstractA significant proportion of extracellular nucleic acids in plasma circulate highly protected in tumor‐specific exosomes, but it is unclear how the release of exosomes is modulated in carcinogenesis. We quantified by cytometry exosomes in plasma of 91 colorectal cancer patients to evaluate their potential as a tumor indicator and their repercussions on diagnosis and prognosis. We examined the involvement of TSAP6, a TP53‐regulated gene involved in the regulation of vesicular secretion, in levels of circulating exosomes in plasma of colorectal patients and in HCT116 TP53‐(wild‐type and null) human colorectal cancer cell lines. The fraction of exosomes in cancer patients was statistically higher than in healthy controls (mean rank = 53.93 vs. 24.35). High levels of exosomes in plasma of patients correlated with high levels of carcino‐embryonic antigen (P = 0.029) and with poorly differentiated tumors (P = 0.039) and tended to have shorter overall survival than patients with low levels (P = 0.056). Release of exosomes did not correlate with TSAP6 expression; and regulation of TSAP6 by TP53 was not shown either in tumor samples or in HCT116 cell lines. Although it was not suggested that the TP53/TSAP6 pathway regulates the release of exosomes into the plasma of colorectal cancer patients, the level of circulating exosomes may be used as a tumor indicator, because it correlates with poor prognosis parameters and shorter survival. © 2011 Wiley Periodicals, Inc.
Adenosine dysfunction in epilepsy
Authors: Boison Detlev 
Published: December 2011

AbstractExtracellular levels of the brain's endogenous anticonvulsant and neuroprotectant adenosine largely depend on an astrocyte‐based adenosine cycle, comprised of ATP release, rapid degradation of ATP into adenosine, and metabolic reuptake of adenosine through equilibrative nucleoside transporters and phosphorylation by adenosine kinase (ADK). Changes in ADK expression and activity therefore rapidly translate into changes of extracellular adenosine, which exerts its potent anticonvulsive and neuroprotective effects by activation of pre‐ and postsynaptic adenosine A1 receptors. Increases in ADK increase neuronal excitability, whereas decreases in ADK render the brain resistant to seizures and injury. Importantly, ADK was found to be overexpressed and associated with astrogliosis and spontaneous seizures in rodent models of epilepsy, as well as in human specimen resected from patients with hippocampal sclerosis and temporal lobe epilepsy. Several lines of evidence indicate that overexpression of astroglial ADK and adenosine deficiency are pathological hallmarks of the epileptic brain. Consequently, adenosine augmentation therapies constitute a powerful approach for seizure prevention, which is effective in models of epilepsy that are resistant to conventional antiepileptic drugs. The adenosine kinase hypothesis of epileptogenesis suggests that adenosine dysfunction in epilepsy undergoes a biphasic response: an acute surge of adenosine that can be triggered by any type of injury might contribute to the development of astrogliosis via adenosine receptor‐dependent and ‐independent mechanisms. Astrogliosis in turn is associated with overexpression of ADK, which was shown to be sufficient to trigger spontaneous recurrent electrographic seizures. Thus, ADK emerges as a promising target for the prediction and prevention of epilepsy. © 2011 Wiley Periodicals, Inc.
Satellite‐based ET estimation in agriculture using SEBAL and METRIC
Authors: Allen Richard , Irmak Ayse , Trezza Ricardo , Hendrickx Jan M. H. , Bastiaanssen Wim , Kjaersgaard Jeppe 
Published: December 2011

AbstractSurface Energy Balance Algorithms for Land (SEBAL) and Mapping EvapoTranspiration at high Resolution with Internalized Calibration (METRIC) are satellite‐based image‐processing models that calculate evapotranspiration (ET) as a residual of a surface energy balance. Both models are calibrated using inverse modelling at extreme conditions approach to develop image‐specific estimations of the sensible heat flux (H) component of the surface energy balance and to effectively remove systematic biases in net radiation, soil heat flux, radiometric temperature and aerodynamic estimates. SEBAL and METRIC express the near‐surface temperature gradient as an indexed function of radiometric surface temperature, eliminating the need for absolutely accurate surface temperature and the need for air temperature measurements. Slope and aspect functions and temperature lapsing are used in METRIC applications in mountainous terrains. SEBAL and METRIC algorithms are designed for relatively routine application by trained professionals familiar with energy balance, aerodynamics and basic radiation physics. The primary inputs for the models are short‐wave and long‐wave (thermal) images from satellite (e.g. Landsat and MODIS), a digital elevation model and ground‐based weather data measured within or near the area of interest. ET ‘maps’ (i.e. images) developed using Landsat images provide means to quantify ET on a field basis in terms of both rate and spatial distribution. METRIC takes advantage of calibration using weather‐based reference ET so that both calibration and extrapolation of instantaneous ET to 24‐h and longer periods compensate for regional advection effects where ET can exceed daily net radiation. SEBAL and METRIC have advantages over conventional methods of estimating ET using crop coefficient curves or vegetation indices in that specific crop or vegetation type does not need to be known and the energy balance can detect reduced ET caused by water shortage, salinity or frost as well as evaporation from bare soil. Copyright © 2011 John Wiley & Sons, Ltd.
THE PURCHASING POWER PARITY HYPOTHESIS IN THE US–CHINA RELATIONSHIP: FRACTIONAL INTEGRATION, TIME VARIATION AND DATA FREQUENCY
Authors: Alberiko Gil‐Alana Luis , Jiang Liang 
Published: December 2011

ABSTRACTThis article deals with the analysis of the purchasing power parity (PPP) hypothesis in China using fractional integration or I(d) techniques. Using real exchange rates data between the Chinese Yuan and the US dollar, the results indicate that the estimated integration order d is generally larger than 1, which means that the PPP hypothesis in China does not hold in the long run over the sample period January 1994 to November 2010. Moreover, to check the stability of d across the sample period, we reestimated it recursively over different subsample periods with 5‐year and 10‐year data frequencies, respectively. The recursive estimated results show that after the structural change at the beginning of the sample period, the fractional differencing parameter d remains stable and generally larger than 1. Copyright © 2011 John Wiley & Sons, Ltd.