bluuebunny/crossref_metadata_2025_split huggingface dataset:
ChemInform Abstract: Highly Diastereoselective Synthesis of Dihydrofurans and Dihydropyrroles via Pyridine Catalyzed Formal [4 + 1] Annulation.
Authors: Liu Chun‐Rong , Zhu Ben‐Hu , Zheng Jun‐Cheng , Sun Xiu‐Li , Xie Zuowei , Tang Yong 
Published: May 2011

AbstractIn the presence of Fe(Cl4tpp) and pyridine base, α‐ylidene‐β‐diketones and α,β‐unsaturated imines react with diazoacetates to provide the title heterocycles as single diastereomers.
ChemInform Abstract: Indium Triflate Catalyzed Coupling Between Nitroalkenes and Phenol/Naphthols: A Simple and Direct Synthesis of Arenofurans by a Cyclization Reaction.
Authors: Kundu Dhiman , Samim Md. , Majee Adinath , Hajra Alakananda 
Published: May 2011

AbstractVarious naphthofuran derivatives are efficiently synthesized by the title method.
ChemInform Abstract: Chiral Oxazolidinones as Electrophiles: Intramolecular Cyclization Reactions with Carbanions and Preparation of Functionalized Lactams.
Authors: Gibson Sarah , Jacobs Hollie K. , Gopalan Aravamudan S. 
Published: May 2011

AbstractDeprotonation of oxazolidinones bearing sulfone, sulfoxide, or phosphonate side chains is followed by intramolecular cyclization providing chiral lactams via a bicyclic intermediate.
ChemInform Abstract: Gold‐Catalyzed Synthesis of 3‐Pyrrolidinones and Nitrones from N‐Sulfonyl Hydroxylamines via Oxygen‐Transfer Redox and 1,3‐Sulfonyl Migration.
Authors: Yeom Hyun‐Suk , So Eunsu , Shin Seunghoon 
Published: May 2011

AbstractGold‐catalyzed reactions of N‐sulfonyl hydroxylamines with terminal alkyne lead to 3‐pyrrolidinones (II) by means of an intramolecular oxygen‐transfer redox reaction.
ChemInform Abstract: Domino Approach to 2‐Aroyltrimethoxyindoles as Novel Heterocyclic Combretastatin A4 Analogues.
Authors: Arthuis Martin , Pontikis Renee , Chabot Guy G. , Quentin Lionel , Scherman Daniel , Florent Jean‐Claude 
Published: May 2011

AbstractA Pd‐catalyzed domino reaction is used as efficient approach to highly substituted indoles (IV).
ChemInform Abstract: Catalyst‐Free and Catalytic Friedel—Crafts Alkylations of Indoles in Solkane® 365mfc, an Environmentally Benign Alternative Solvent.
Authors: Xu Xiu‐Hua , Kusuda Akihiro , Tokunaga Etsuko , Shibata Norio 
Published: May 2011

AbstractAlkylations of various indoles with trifluoropyruvate (II) and glyoxylate (VII) are investigated in racemic and enantioselective variants.
ChemInform Abstract: Phosphine‐Catalyzed Highly Diastereoselective [3 + 2] Cyclization of Isatin Derived Electron‐Deficient Alkenes with α‐Allenic Esters.
Authors: Zhang Xiu‐Chun , Cao Shu‐Hua , Wei Yin , Shi Min 
Published: May 2011

AbstractNovel [3 + 2] cyclization of isatin alkenes (I) with α‐allenic esters (II) in the presence of tris(4‐fluorophenyl)phosphine as catalyst leads to (trans,trans)‐diastereomer (IV) as major product, whilst the tributylphosphine‐catalyzed reaction proceeds with a moderate (cis,trans)‐diastereoselectivity.
ChemInform Abstract: Synthesis and Antimicrobial Activity of Thiosemicarbazides, s‐Triazoles and Their Mannich Bases Bearing 3‐Chlorophenyl Moiety.
Authors: Plech Tomasz , Wujec Monika , Siwek Agata , Kosikowska Urszula , Malm Anna 
Published: May 2011

AbstractA fast, facile, and efficient method for the preparation of title compounds (III) is described.
ChemInform Abstract: Tetrahydroxanthones by Sequential Pd‐Catalyzed C—O and C—C Bond Construction and Use in the Identification of the “Antiausterity” Pharmacophore of the Kigamicins.
Authors: Turner Penelope A. , Griffin Ellanna M. , Whatmore Jacqueline L. , Shipman Michael 
Published: May 2011

AbstractIn the presence of the Pd catalyst, carbonyl compounds of type (I), (III), and (V) undergo efficient ring closure to afford tetrahydroxanthone derivatives.
ChemInform Abstract: Novel 4‐Aryl‐pyrido[1,2‐c]pyrimidines with Dual SSRI and 5‐HT1A Activity. Part 3.
Authors: Herold Franciszek , et al. et al. 
Published: May 2011

AbstractSynthesis, in vitro affinity for 5‐HT1A receptors and SERT, SAR, and in vivo agonist/antagonist properties toward pre‐ and postsynaptic 5‐HT1A receptors are described.
ChemInform Abstract: Part 1. Synthesis, Cancer Chemopreventive Activity and Molecular Docking Study of Novel Quinoxaline Derivatives.
Authors: Galal Shadia A. , Abdelsamie Ahmed S. , Tokuda Harukuni , Suzuki Nobutaka , Lida Akira , ElHefnawi Mahmoud M. , Ramadan Raghda A. , Atta Mona H. E. , El Diwani Hoda I. 
Published: May 2011

AbstractThe antitumor activity of the novel quinoxaline derivatives is evaluated by studying their possible effects on TPA‐induced Epstein—Barr virus early antigen (EBV‐EA) activation.
ChemInform Abstract: Heterogeneous SnCl2/SiO2 versus Homogeneous SnCl2 Acid Catalysis in the Benzo[N,N]‐heterocyclic Condensation.
Authors: Darabi Hossein Reza , Aghapoor Kioumars , Mohsenzadeh Farshid , Jalali Mohammad Reza , Talebian Shiva , Ebadi‐Nia Leila , Khatamifar Ehsan , Aghaee Ali 
Published: May 2011

AbstractSilica‐supported stannous chloride shows high catalytic activity in the synthesis of fused pyrazine derivatives via condensation of o‐diaminoarenes with appropriate 1,2‐dicarbonyl compounds.
ChemInform Abstract: Activity of 3‐Hydrazino‐1,2,4‐triazines in Reaction with N,N‐Dimethylcarbamoyl Bromide.
Authors: Mironovich L. M. , Ivanov M. A. 
Published: May 2011

AbstractAcylation of 6‐substituted 3‐hydrazinotriazin‐5‐ones with carbamoyl bromide (II) gives triazolotriazinone (III) or aminocarbonylhydrazine derivative (V), depending on the substituent in 6‐position of the initial triazinone.
ChemInform Abstract: A Rapid and Efficient Access to Diaryldibenzo[b,f][1,5]diazocines.
Authors: Wang Xiao , Li Jianzhong , Zhao Na , Wan Xiaobo 
Published: May 2011

AbstractStarting from easily available benzoyl benzoic acids, a new facile [2 + 2] cyclization to produce the medicinally important targets (II) is described.
ChemInform Abstract: Campestarenes: Novel Shape‐Persistent Schiff Base Macrocycles with 5‐Fold Symmetry.
Authors: Guieu Samuel , Crane Angela K. , MacLachlan Mark J. 
Published: May 2011

AbstractA simple one‐step procedure affords a family of stable, conjugated macrocycles (II) with 5‐fold symmetry mediated by 3‐center hydrogen bonding.
ChemInform Abstract: Vinyl Diazophosphonates as Precursors to Quaternary Substituted Indolines and Cyclopentenes.
Authors: Wang Jin , Boyarskikh Vyacheslav , Rainier Jon D. 
Published: May 2011

AbstractVinyl diazophosphonates (IV), exclusively synthesized as (E)‐isomers, undergo a sulfonium ylide rearrangement [cf.
ChemInform Abstract: Triterpenoids and Sterones from the Stem Bark of Ailanthus altissima
Authors: Zhou Xiao‐Jiang , Xu Min , Li Xue‐Song , Wang Yue‐Hu , Gao Ye , Cai Rui , Cheng Yong‐Xian 
Published: May 2011

Abstractisolation and structure elucidation of a new tirucallane‐type triterpenoid, alianthusaltinin A (I), and one new C29sterone, alianthaltone A (II), along with numerous known compounds
ChemInform Abstract: Psammaplysin H, a New Antimalarial Bromotyrosine Alkaloid from a Marine Sponge of the Genus Pseudoceratina.
Authors: Xu Min , Andrews Kathy T. , Birrell Geoff W. , Tran Truc Linh , Camp David , Davis Rohan A. , Quinn Ronald J. 
Published: May 2011

AbstractMass‐directed isolation of the large‐scale CH2Cl2/Me‐OH extract from the title sponge affords the new alkaloid psammaplysin H (I) together with the previously isolated analogues psammaplysins G and F.
ChemInform Abstract: Identification of an 18‐Methyl Derivative of Tacrolimus API in Streptomyces clavuligerus CKD‐1119.
Authors: Ham Yun‐Beom , Koo Yoon‐Mo 
Published: May 2011

AbstractA hitherto unknown 18‐methyl derivative (I) of the potent immunosuppressant tacrolimus is identified.
CFD Simulation of a Spray including Particle‐Droplet Interaction
Authors: Schaldach Gerhard , Pieloth Damian , Kohnen Boris , Großmann Maik , Walzel Peter 
Published: May 2011

AbstractDie Herstellung von Formteilen und Dämmstoffen aus modifizierten Polyurethanschäumen im Sprühverfahren hat in den letzten Jahren einen deutlichen Zuwachs erfahren. Hierbei werden Füllstoffe wie Glasfasern oder Metallpartikel in den Sprühstrahl eingebunden, um die gewünschten Produkteigenschaften zu erzielen. Die vorliegende Arbeit widmet sich der numerischen Simulation (CFD) der Sprühstrahlausbreitung unter besonderer Berücksichtigung der Einbindung von Partikeln in den Sprühstrahl. Experimentelle Untersuchungen an einer Sprühversuchsanlage zeigen, dass die hier vorgestellte Methode eine realitätsnahe Vorhersage der Partikeleinbindung in einen Sprühstrahl erlaubt.
Walking the talk? Environmental responsibility from the perspective of small‐business owners
Authors: Battisti Martina , Perry Martin 
Published: May 2011

AbstractSmall and medium‐sized enterprises (SMEs) have generally been portrayed as failures in relation to environmental sustainability due to their low take‐up rates of sustainable business practices. This judgment arises when frameworks and standards that have been developed in, and for, large firms are applied to SMEs. Such assessment can provide a misleading impression of the uptake of sustainable business practices, as SMEs do not operate simply as miniature large firms. The performance of SMEs should be assessed using benchmarks that fit the circumstances of small firms. Based on interviews with 50 small‐business owners in New Zealand, we explore how environmental responsibility is understood and translated into practice. This paper contributes to the emerging stream of research that aims to build a theory of environmental responsibility that is grounded in the experiences of SME owner‐managers, and takes into account the heterogeneity and characteristics of the SME sector. Copyright © 2011 John Wiley & Sons, Ltd and ERP Environment.
A Shift in corporate practice? Facilitating sustainability strategy in companies
Authors: Eweje Gabriel 
Published: May 2011

AbstractIncreasingly, there has been a great deal of attention paid to the notion of corporate sustainability, which has variously been defined as meaning the incorporation of social, environmental, economic, and cultural concerns into corporate strategy. Therefore, corporations, particularly those that have global presence, are required to commit to sustainability strategies and practice as a means of expressing their support and commitment to the notion. This study examines managers' actual sustainability perceptions and practices. The paper reports on an empirical study carried out in New Zealand in which 15 large companies were interviewed in 2009 about their sustainability strategy and practice. Results reveal that companies that participated in the study are keen to demonstrate that sustainability is integral to their policy and have various projects and initiatives to support their position and commitment. However, with lack of ‘organised’ stakeholder pressure on corporations in New Zealand to showcase their sustainability attributes, with very few exceptions, the question of what really motivates sustainability projects/initiatives is compelling. Copyright © 2011 John Wiley & Sons, Ltd and ERP Environment.
Amine‐Tethered Solid Adsorbents Coupling High Adsorption Capacity and Regenerability for CO2 Capture From Ambient Air
Authors: Choi Sunho , Gray McMahan L. , Jones Christopher W. 
Published: May 2011

AbstractSilica supported poly(ethyleneimine) (PEI) materials are prepared via impregnation and demonstrated to be promising adsorbents for CO2 capture from ultra‐dilute gas streams such as ambient air. A prototypical class 1 adsorbent, containing 45 wt % PEI (PEI/silica), and two new modified PEI‐based aminosilica adsorbents, derived from PEI modified with 3‐aminopropyltrimethoxysilane (A‐PEI/silica) or tetraethyl orthotitanate (T‐PEI/silica), are prepared and characterized by using thermogravimetric analysis and FTIR spectroscopy. The modifiers are shown to enhance the thermal stability of the polymer‐oxide composites, leading to higher PEI decomposition temperatures. The modified adsorbents present extremely high CO2 adsorption capacities under conditions simulating ambient air (400 ppm CO2 in inert gas), exceeding 2 mol kgsorbent−1, as well as enhanced adsorption kinetics compared to conventional class 1 sorbents. The new adsorbents show excellent stability in cyclic adsorption–desorption operations, even under dry conditions in which aminosilica adsorbents are known to lose capacity due to urea formation. Thus, the adsorbents of this type can be considered promising materials for the direct capture of CO2 from ultra‐dilute gas streams such as ambient air.
Product Distribution from the Fast Pyrolysis of Hemicellulose
Authors: Patwardhan Pushkaraj R. , Brown Robert C. , Shanks Brent H. 
Published: May 2011

AbstractHemicellulose is one of the major constituents of biomass. Surprisingly, only very limited information regarding its product distribution under fast pyrolysis conditions is available in the literature. In the present study, a combination of several analytical techniques, including micro‐pyrolyzer‐GC‐MS/FID, gas analysis, and capillary electrophoresis, were used to study the primary pyrolysis product distribution of hemicelluloses extracted and purified from switchgrass. A total of 16 products were identified and quantified, which accounted for 85 % of the overall mass balance. The pyrolysis behavior of hemicellulose was found to be considerably different than cellulose and was explained on the basis of a proposed mechanism for glycosidic bond cleavage. Further, the effect of minerals and temperature was investigated. The study provides insight into the fast pyrolysis behavior of hemicellulose and provides a basis for developing models that can predict bio‐oil composition resulting from overall biomass fast pyrolysis.
Cryptanalysis of mCrypton—A lightweight block cipher for security of RFID tags and sensors
Authors: Mala Hamid , Dakhilalian Mohammad , Shakiba Mohsen 
Published: May 2011

SUMMARYmCrypton is a 64‐bit lightweight block cipher designed for use in low‐cost and resource‐constrained applications such as RFID tags and sensors in wireless sensor networks. In this paper, we investigate the strength of this cipher against related‐key impossible differential cryptanalysis. First, we construct two 6‐round related‐key impossible differentials for mCrypton‐96 and mCrypton‐128. Then, using these distinguishers, we present 9‐round related‐key impossible differential attacks on these two versions. The attack on mCrypton‐96 requires 259.9 chosen plaintexts, and has a time complexity of about 274.9 encryptions. The data and time complexities for the attack on mCrypton‐128 are 259.7 chosen plaintexts and 266.7 encryptions, respectively. Copyright © 2011 John Wiley & Sons, Ltd.
Predator and restraint stress during gestation facilitates pilocarpine‐induced seizures in prepubertal rats
Authors: Ahmadzadeh Ramin , Saboory Ehsan , Roshan‐Milani Shiva , Pilehvarian Ali Asghar 
Published: May 2011

AbstractStress during gestation can result in early and long‐term developmental aberrations. This study aimed to assess the impact of prenatal restraint or predator stress on pilocarpine‐induced epileptic behavior. Pregnant rats were exposed to stressors on gestational days 15, 16, and 17. Restraint stress consisted of daily restraint of the dam. During predator stress, caged rats were exposed to a cat in a cage. On postnatal day 25, male pups were injected with pilocarpine and the behavior of each rat was observed. Prenatal stress led to low birth weight and increased blood corticosterone levels. Both stressors significantly potentiated pilocarpine‐induced seizures. Predator‐stressed pups exhibited significantly severe tonic–clonic seizures compared with restraint‐stressed animals. These data emphasize the impact of prenatal stress on fetal growth, and neural and endocrine function. The results also suggest that psychosocial stressors have a greater impact on neural and endocrine function than physical stressors do. © 2011 Wiley Periodicals, Inc. Dev Psychobiol 53:806–812, 2011.
Local Climate Mitigation and Eco‐efforts in Housing and Construction as Transition Places
Authors: Holm Jesper , Stauning Inger , Søndergård Bent 
Published: May 2011

ABSTRACTIn the transition of socio‐technical systems, local projects and experiments regarding the low carbon economy and climate mitigation/adaptation serve as transition places. In specific contexts, they become sites of innovation and creativity. This paper discusses and characterizes the innovative practices undertaken in local Danish arenas of transition, concentrating on technology and practice related to CO2 reductions within the housing and construction sector. In particular, the paper seeks to identify the various roles of local actors' deliberation in situated places of transition, thus contributing to the development of transition theories on actors and conditions for niche experimentation. Finally, the paper contributes to the building up of knowledge on transition dynamics related to low carbon construction and housing. Copyright © 2011 John Wiley & Sons, Ltd and ERP Environment.
Transition Metal‐Catalyzed Formation of N‐Heterocycles via Aryl‐ or Vinyl C–H Bond Amination
Authors: Stokes Benjamin J. , Driver Tom G. 
Published: May 2011

AbstractThe construction of N‐heterocycles remains a fertile area of research because of their ubiquitous occurrence in biologically active small molecules and materials. Their ubiquitous nature has motivated the development of methods to streamline their synthesis. Formation of the C–N bond via transition metal‐functionalization of the aryl or vinyl C–H bond simplifies N‐heterocycle synthesis by minimizing the manipulation of functional groups. Transition metal‐catalyzed C–H bond amination can be accomplished through two strategies: the activation of the N‐atom or activation of the C–H bond. This microreview examines the recent advances in applying these two strategies for the functionalization of sp2 C–H bonds and is organized by the source of nitrogen atom.
A New and Efficient Procedure for Bi(OTf)3‐Promoted [3+2] Cycloaddition of N‐Tosylaziridines to Yield Imidazolines
Authors: Li Xing , Yang Xueqi , Chang Honghong , Li Yanwei , Ni Bin , Wei Wenlong 
Published: May 2011

Abstract[3+2] Cycloaddition of a series of substituted N‐tosylaziridines with various nitriles promoted by Bi(OTf)3 is described for the synthesis of substituted imidazolines under mild reaction conditions. The procedure works well over a range of substrates to give the corresponding products in good to excellent yields (up to 99 %).
Therapeutic plasma proteins – application of proteomics in process optimization, validation, and analysis of the final product
Authors: Gaso‐Sokac Dajana , Kovac Spomenka , Clifton James , Josic Djuro 
Published: May 2011

AbstractAn overview is given on the application of proteomic technology in the monitoring of different steps during the production of therapeutic proteins from human plasma. Recent advances in this technology enable the use of proteomics as an advantageous tool for the validation of already existing processes, the development and fine tuning of new production steps, the characterization and quality control of final products, the detection of both harmful impurities and modifications of the therapeutic protein and the auditing of batch‐to‐batch variations. Further, use of proteomics for preclinical testing of new products, which can be either recombinant or plasma‐derived, is also discussed.
Start‐up flow in a three‐dimensional lid‐driven cavity by means of a massively parallel direction splitting algorithm
Authors: Guermond J. L. , Minev P. D. 
Published: May 2011

SUMMARYThe purpose of this paper is to validate a new highly parallelizable direction splitting algorithm. The parallelization capabilities of this algorithm are illustrated by providing a highly accurate solution for the start‐up flow in a three‐dimensional impulsively started lid‐driven cavity of aspect ratio 1 × 1 × 2 at Reynolds numbers 1000 and 5000. The computations are done in parallel (up to 1024 processors) on adapted grids of up to 2 billion nodes in three space dimensions. Velocity profiles are given at dimensionless times t = 4, 8, and 12; at least four digits are expected to be correct at Re = 1000. Copyright © 2011 John Wiley & Sons, Ltd.
A comparative investigation of hydrofoil at angles of attack
Authors: Razavi Seyed Esmail , Orang Ali Atashbar 
Published: May 2011

SUMMARYIn this paper, a numerical investigation of incompressible flow around a hydrofoil is presented. The laminar flow was modeled at different angles of attack. Momentum and continuity equations were coupled by the artificial compressibility scheme. In finite‐volume method, convective fluxes were calculated and compared by four schemes. Flux averaging with pressure correction was used. The other characteristic‐based (CB) methods consisted of Roe scheme and original CB scheme. A revised CB scheme was implemented in this research, which demonstrated very accurate solutions with respect to others. The results confirmed the superiority of the revised upwind scheme regarding accuracy and convergence without any requirement to artificial viscosity. The problem was studied at high Reynolds numbers at the onset of turbulence. For time discretization, the fifth‐order Runge–Kutta scheme was used. Results were compared with those of others in which good agreement was observed. Numerical experiments were performed on the NACA0012 hydrofoil. Copyright © 2011 John Wiley & Sons, Ltd.
Using the Choquet integral for screening geological CO2 storage sites
Authors: Zhang Yingqi 
Published: May 2011

AbstractFor geological CO2 storage site selection, it is desirable to reduce the number of candidate sites through a screening process before detailed site characterization is performed. Screening generally involves defi ning a number of criteria which then need to be evaluated for each site. The importance of each criterion to the fi nal evaluation will generally be different. Weights refl ecting the relative importance of these criteria can be provided by experts. To evaluate a site, each criterion must be evaluated and scored, and then aggregated, taking into account the importance of the criteria. We propose the use of the Choquet integral for aggregating the scores. The Choquet integral considers the interactions among criteria, i.e. whether they are independent, complementary to each other, or partially repetitive. We also evaluate the Shapley index, which demonstrates how the importance of a given piece of information may change if it is considered by itself or together with other available information. An illustrative example demonstrates how the Choquet integral properly accounts for the presence of redundancy in two site‐evaluation criteria, making the screening process more defensible than the standard weighted‐average approach. © 2011 Society of Chemical Industry and John Wiley & Sons, Ltd