bluuebunny/crossref_metadata_2025_split huggingface dataset:
ChemInform Abstract: Platelike Ag2Nb4O11 Mesocrystals: Soft Chemical Synthesis, Formation Mechanism and Enhanced Photocatalytic Performance.
Authors: Kong Xingang , Guo Zhanglin , Lu Quan , Huang Jianfeng , Cao Liyun , Yin Lixiong , Li Jiayin , Feng Qi 
Published: October 2016

AbstractThe title mesocrystals (polycrystals of oriented nanocrystals) are prepared via a soft chemical topotactic reaction using solvothermally prepared layered K4Nb6O17 plate like particles that are first acidified by dilute HNO3 for 24 h and then subjected to an ion exchange in 0.3 M AgNO3 (24 h) which is followed by calcination in air (600 °C, 2 h).
ChemInform Abstract: Eu2(CN2)3 and KEu[Si(CN2)4]: Missing Members of the Rare Earth Metal Carbodiimide and Tetracyanamidosilicate Series.
Authors: Dutczak Danuta , Stroebele Markus , Enseling David , Juestel Thomas , Meyer H.‐Juergen 
Published: October 2016

AbstractCompounds (III) and (V) are prepared by solid state metathesis reactions and characterized by powder XRD, photoluminescence, and nonlinear optical measurements.
ChemInform Abstract: An Oxidative Cyclopropanation Reaction of Primary Nitro Compounds Using Fe2O3.
Authors: Moriyama Takaaki , Ito Yuji , Koyama Yusuke , Kawamoto Takuji , Kamimura Akio 
Published: October 2016

AbstractAlkenylnitro compounds (I) undergo oxidative cyclopropanation by treatment with Fe2O3 in the presence of DBU and iodine.
ChemInform Abstract: Heteroarene‐Directed Oxidative sp2 C—H Bond Allylation with Aliphatic Alkenes Catalyzed by an (Electron‐Deficient η5‐Cyclopentadienyl)rhodium(III) Complex.
Authors: Takahama Yuji , Shibata Yu , Tanaka Ken 
Published: October 2016

AbstractA regioselective allylation of benzenes with aliphatic olefins is achieved using heteroarenes as directing groups under mild conditions.
ChemInform Abstract: Manganese(I)‐Catalyzed Substitutive C—H Allylation.
Authors: Liu Weiping , Richter Sven C. , Zhang Yujiao , Ackermann Lutz 
Published: October 2016

AbstractThe first organometallic manganese‐catalyzed substitutive C—H activation for the step‐economical allylation of arenes is achieved.
ChemInform Abstract: Nickel‐Catalyzed Alkylative Cross‐Coupling of Anisoles with Grignard Reagents via C—O Bond Activation.
Authors: Tobisu Mamoru , Takahira Tsuyoshi , Morioka Toshifumi , Chatani Naoto 
Published: October 2016

AbstractNi‐catalyzed cross‐coupling of methoxy substituted naphthalene (I) with alkyl Grignard reagents offers a convenient synthesis of 2‐alkyl naphthalenes.
ChemInform Abstract: Non‐Coordinating‐Anion‐Directed Reversal of Activation Site: Selective C—H Bond Activation of N‐Aryl Rings.
Authors: Wang Dawei , Yu Xiaoli , Xu Xiang , Ge Bingyang , Wang Xiaoli , Zhang Yaxuan 
Published: October 2016

AbstractA Rh‐catalyzed selective C—H bond activation of diaryl‐substituted anilides is described.
ChemInform Abstract: Metal‐Free Amidation of Carboxylic Acids with Tertiary Amines.
Authors: Phakhodee Wong , Wangngae Sirilak , Pattarawarapan Mookda 
Published: October 2016

AbstractAn amidation of aliphatic, allylic, and aromatic carboxylic acids with tertiary amines to give the corresponding tertiary amides is achieved under mild conditions using Ph3P—I2 as activator.
ChemInform Abstract: Electrochemical Synthesis of α‐Enaminones from Aryl Ketones.
Authors: Li Yanan , Gao Huihui , Zhang Zhenlei , Qian Peng , Bi Meixiang , Zha Zhenggen , Wang Zhiyong 
Published: October 2016

AbstractAn electrochemical, oxidative three‐component coupling reaction of aromatic ketones, cyclic amines, and nitroacetate affords α‐enaminones under mild conditions in good yields.
ChemInform Abstract: Chiral Integrated Catalysts Composed of Bifunctional Thiourea and Arylboronic Acid: Asymmetric Aza‐Michael Addition of α,β‐Unsaturated Carboxylic Acids.
Authors: Hayama Noboru , Azuma Takumi , Kobayashi Yusuke , Takemoto Yoshiji 
Published: October 2016

AbstractA range of enantioenriched β‐(benzyloxy)amino acid derivatives are prepared in high yields and with high enantioselectivities.
ChemInform Abstract: Palladium‐Catalyzed Directed para C—H Functionalization of Phenols.
Authors: Patra Tuhin , Bag Sukdev , Kancherla Rajesh , Mondal Anirban , Dey Aniruddha , Pimparkar Sandeep , Agasti Soumitra , Modak Atanu , Maiti Debabrata 
Published: October 2016

AbstractThe directing‐group‐assisted para C—H functionalization of toluene derivatives occurs under assistance of a recyclable silicon‐containing biphenyl‐based template.
ChemInform Abstract: Nucleophilic Nitration of Arynes by Sodium Nitrite and Its Multicomponent Reaction Leading to Double‐Functionalized Arenes.
Authors: Dhokale Ranjeet A. , Mhaske Santosh B. 
Published: October 2016

AbstractAn unusual nucleophilic nitration of arynes, generated by Kobayashi′s method, is studied.
ChemInform Abstract: Facile Synthesis of Photoactive Diaryl(hetaryl)cyclopentenes by Ionic Hydrogenation.
Authors: Lvov Andrey G. , Bulich Ekaterina Yu. , Metelitsa Anatoly V. , Shirinian Valerii Z. 
Published: October 2016

AbstractUnsymmetrical photoswitchable diarylethenes containing benzene, thiophene, or azoles as aromatic moieties are prepared.
ChemInform Abstract: One‐Pot Synthesis of Tetraphene and Construction of Expanded Conjugated Aromatics.
Authors: Wang Jianbo , Yao Jinzhong , Wang Hailong , Chen Hao , Dong Jingcheng , Zhou Hongwei 
Published: October 2016

AbstractThe method comprises a multi‐step sequence consisting of a propargyl‐allenyl isomerization, phosphine addition, Wittig and Diels‐Alder reactions in an operationally simple one‐pot manner.
ChemInform Abstract: Tandem Olefin Metathesis/Oxidative Cyclization: Synthesis of Tetrahydrofuran Diols from Simple Olefins.
Authors: Dornan Peter K. , Lee Daniel , Grubbs Robert H. 
Published: October 2016

AbstractA one‐pot tandem process consisting of an olefin metathesis step and an oxidative cyclization is developed to construct 2,5‐disubstituted tetrahydrofurans in a highly stereocontrolled manner.
ChemInform Abstract: Carbazole Annulation via Cascade Nucleophilic Addition—Cyclization Involving 2‐(Silyloxy)pentadienyl Cation.
Authors: Stepherson Jacob R. , Ayala Caitlan E. , Tugwell Thomas H. , Henry Jeffrey L. , Fronczek Frank R. , Kartika Rendy 
Published: October 2016

AbstractA new strategy toward the synthesis of highly functionalized carbazoles under Broensted acid catalysis is developed.
ChemInform Abstract: Palladium‐Catalyzed Carbonylation of β‐Arylethylamide Directed by Oxalyl Amide in the Presence of Carbon Monoxide.
Authors: Zhang Li , Wang Chao , Han Jian , Huang Zhi‐Bin , Zhao Yingsheng 
Published: October 2016

AbstractThe scalable title reaction offers access to various 3,4‐dihydroisoquinoline derivatives in high yields.
ChemInform Abstract: Visible Light Driven Photocascade Catalysis: Ru(bpy)3(PF6)2/TBHP‐Mediated Synthesis of Fused β‐Carbolines in Batch and Flow Microreactors.
Authors: Chandrasekhar D. , Borra Satheesh , Nanubolu Jagadeesh Babu , Maurya Ram Awatar 
Published: October 2016

AbstractA series of fused β‐carbolines are synthesized based on a photoredox‐catalyzed [3 + 2] cycloaddition strategy.
ChemInform Abstract: Palladium‐Catalyzed ipso‐Borylation of Aryl Sulfides with Diborons.
Authors: Bhanuchandra M. , Baralle Alexandre , Otsuka Shinya , Nogi Keisuke , Yorimitsu Hideki , Osuka Atsuhiro 
Published: October 2016

AbstractInherently reluctant C—S bonds are transferred into C—B bonds in a catalytic Miyaura‐type reaction.
ChemInform Abstract: Structural Analogues of Selfotel.
Authors: Dziuganowska Zofia A. , Slepokura Katarzyna , Volle Jean‐Noel , Virieux David , Pirat Jean‐Luc , Kafarski Pawel 
Published: October 2016

AbstractSeveral analogues of the NMDA receptor antagonist selfotel are synthesized and tested for their biological activity.
ChemInform Abstract: Cynotophyllosides K—L from the Roots of Cynanchum otophyllum.
Authors: Pang Wei‐Wei , Zheng Yang , Qian Hao‐Ying , Ma Lie‐Feng , Wang Fa‐Song , Shan Wei‐Guang , Zhan Zha‐Jun 
Published: October 2016

AbstractTwo new steroidal glycosides, cynotophyllosides K (I) and L (II), are isolated from the roots of Cynanchum otophyllum together with three known steroids.
ChemInform Abstract: Downconversion from Ultra Violet to Near Infer Red Region in Novel Yb3+ Doped LiSrVO4 Phosphor.
Authors: Sawala N. S. , Omanwar S. K. 
Published: October 2016

AbstractWhite polycrystalline powders of LiSr1‐xVO4:Ybx (x = 0—0.01) are prepared by co‐precipitation from stoichiometric solutions of LiNO3, Sr(NO3)2, and Yb2O3 in HNO3 to which an aqueous solution of NH4VO3 is given followed by a final heating of the dried precursor (500 and 600 °C, 1 h each).
ChemInform Abstract: Specific Features of the Structures of Monomeric Octahedral D2 Rhenium(V) Oxo Complexes with Oxygen Atoms trans to the Oxo Ligands: Complexes with Neutral Ligands OER3 (E: P, As; R3: Ph3, PhEt2) trans to O(oxo)
Authors: Sergienko V. S. 
Published: October 2016

AbstractReview: 42 refs.
ChemInform Abstract: Tuning the Topology of Hybrid Inorganic—Organic Materials Based on the Study of Flexible Ligands and Negative Charge of Polyoxometalates: A Crystal Engineering Perspective
Authors: Taleghani Somayeh , Mirzaei Masoud , Eshtiagh‐Hosseini Hossein , Frontera Antonio 
Published: October 2016

AbstractReview: 159 refs.
ChemInform Abstract: Cyclic Dinucleotide (c‐di‐GMP, c‐di‐AMP, and cGAMP) Signalings Have Come of Age to Be Inhibited by Small Molecules
Authors: Opoku‐Temeng Clement , Zhou Jie , Zheng Yue , Su Jianmei , Sintim Herman O. 
Published: October 2016

AbstractReview: 173 refs.
Brauwissenschaft und Brauereitechnologie
Authors: Narziss Ludwig , Back Werner 
Published: October 2016

AbstractDas deutsche Reinheitsgebot setzt der deutschen Brauindustrie enge Grenzen bei der Bierproduktion. Die zugelassenen Rohstoffe sind Malz, Wasser, Hopfen und Hefe. Zur Steuerung der Prozesse stehen den Brauereien daher nur Betriebsparameter wie Temperatur, Zeit, pH und Druck zur Verfügung. Durch Grundlagenforschung der Enzymreaktionen, der Abbauvorgänge und der Beeinflussungsfaktoren konnte der Brauvorgang optimiert und beschleunigt werden. Eine besondere Bedeutung kommt der Züchtung von immer höher qualifizierten Rohstoffen, aber auch der Auswahl und Beschreibung von unter‐ und obergärigen Hefestämmen zu.
Extraktive Gewinnung von Germanium aus pflanzlicher Biomasse
Authors: Schreiter Norbert , Aubel Ines , Bertau Martin 
Published: October 2016

AbstractGermanium ist ein strategisches Halbmetall, dessen Versorgungssicherheit als kritisch eingestuft wird. Typischerweise wird es aus Nebenprodukten der Zinkverhüttung gewonnen. Ein gänzlich neuer Ansatz ist die Germaniumgewinnung aus Pflanzen (Phytomining). Mit der Integration der Wertmetallgewinnung in die Prozesskette der Biogasproduktion wird eine vollständige Verwertung der pflanzlichen Rohstoffe erreicht. Dies gelang durch saure Laugung der Biomasse und anschließende Extraktion auf Germanium. Die Begleitmetalle werden zu ≥ 95 % abgetrennt und das Germanium bei anschließender Destillation über GeCl4 als GeO2 hydrolysiert.
Evaluation of ash‐free coal for chemical looping combustion ‐ part I: Thermogravimetric single cycle study and the reaction mechanism
Authors: Shabani Azar , Rahman Moshfiqur , Pudasainee Deepak , Samanta Arunkumar , Sarkar Partha , Gupta Rajender 
Published: October 2016

In this study, performance of ash‐free coal (AFC) was evaluated for chemical looping combustion (CLC) using CuO as an oxygen carrier during reduction and oxidation processes in a thermogravimetric (TG) analyzer. TG experiments with CuO/AFC mixture with different ratios (10:1–50:1) at various temperatures ranging from 450 to 900 °C were performed and the results were analyzed in greater detail for the best suitable ratio (R30). The CLC reaction mechanism includes release of volatile matter until 450 °C and auto‐ decomposition of CuO at 790 °C. CuO reduction induced by volatile matter from AFC occurred at temperatures below 450 °C. Char combustion induced by oxygen release from CuO occurred at about 800 °C as auto‐decomposition of CuO occurs at 790 °C. A slight loss in mass, observed between 450 °C and 790 °C, is attributed to solid‐solid interaction of char and CuO powder.Advanced analytical techniques such as XRD, SEM, and ultimate analyses were employed to characterize the oxygen carrier and to understand the possible interaction of the oxygen carrier with volatile matter and char. Overall, AFC as the solid fuel showed a promising oxidation/reduction performance and has great potential to be used in the CLC process.
Chronic myeloid leukemia among patients with a history of prior malignancies: A tale of dual survivorship
Authors: Koller Paul B. , Kantarjian Hagop M. , Nogueras‐Gonzalez Graciela M. , Jabbour Elias , Verstovsek Srdan , Borthakur Gautam , Estrov Zeev , Wierda William G. , Garcia‐Manero Guillermo , Ferrajoli Alessandra , Ravandi Farhad , O'Brien Susan M. , Cortes Jorge E. 
Published: October 2016

BACKGROUNDSome patients with chronic myeloid leukemia (CML) have a history of previous malignancies. To the authors' knowledge, outcomes for CML diagnosed in these patients have not been well described. The current study was conducted to determine the outcome of patients with CML and a history of prior malignancies.METHODSThe current study included patients who were enrolled in clinical trials of tyrosine kinase inhibitors as initial therapy for CML in chronic phase from July 2000 to January 2014.RESULTSOf the 630 patients with CML who were treated with frontline tyrosine kinase inhibitors, 626 had a known prior malignancy status. Of these, 45 patients (7%) had a prior malignancy other than nonmelanoma skin cancer whereas 17 patients (3%) had a history of nonmelanoma skin cancers alone. Characteristics of CML were similar between the patients with no prior malignancy, those with a prior malignancy, and those with nonmelanoma skin cancer. Patients with a prior malignancy were found to have an older median age compared with the other 2 groups. The most common prior malignancies were nonmelanoma skin cancer in 20 patients, breast cancer in 11 patients, melanoma in 7 patients, prostate cancer in 6 patients, and colorectal cancer in 5 patients. With regard to CML, the event‐free survival, transformation‐free survival, and failure‐free survival rates were found to be similar between the groups. There was a statistically significantly decreased survival in the group with a prior malignancy versus the group with no prior malignancy versus the group with nonmelanoma skin cancer. In a multivariate analysis, advanced age and an elevated creatinine level were found to be associated with worse survival after a diagnosis of CML.CONCLUSIONSPatients with CML with a history of prior malignancies appear to have the same excellent outcome as patients with no prior malignancies. In the few instances in which concomitant therapy for other malignancies was required during therapy with tyrosine kinase inhibitors, this was able to be accomplished without significant toxicity. Cancer 2017;123:609–616. © 2016 American Cancer Society.
Suspension Electrodes Combining Slurries and Upflow Fluidized Beds
Authors: Cohen Hagai , Eli Shaked Ein , Jõgi Morten , Suss Matthew E. 
Published: October 2016

AbstractCarbon‐based suspension electrodes are currently intensively investigated for emerging electrochemical systems, such as flow batteries, flow capacitors, and capacitive deionization cells. The main limitation of such electrodes is their low electric conductivity, which is typically orders of magnitude lower than that of traditional static carbon electrodes. Two main categories of suspension electrodes exist: 1) slurry electrodes where particles are not significantly affected by gravity, and 2) fluidized bed electrodes where particles are affected by gravity. We introduce a novel category that we term “combined” suspension electrodes, which combine dilute slurries and dense fluidized beds. We present experimental measurements of the electrochemical impedance and electric conductivity of two combined electrodes. For one set of materials, the measured electric conductivity of the combined electrode is at least an order of magnitude above the fluidized bed and slurry components alone, demonstrating that a synergetic effect can be achieved when adding dilute slurry to dense fluidized bed. For a second set of materials, results show that the combined electrode conductivity is lower than the slurry component alone, a counter‐intuitive result, demonstrating that increasing electrode carbon loading does not always enhance the electric conductivity.
Bifunctional Ionic Liquids Derived from Biorenewable Sources as Sustainable Catalysts for Fixation of Carbon Dioxide
Authors: Saptal Vitthal B. , Bhanage Bhalchandra M. 
Published: October 2016

AbstractA series of highly efficient, bifunctional ionic liquids containing a quaternary alkyl ammonium cation and an amine anion were prepared from choline and amino acids, respectively. Nine ILs were synthesized, characterized, and applied as organocatalysts for the chemical fixation of carbon dioxide to form cyclic carbonates and quinazoline‐2,4(1 H,3 H)‐diones. A binary mixture of an IL and a co‐catalysts generates deep eutectic solvents (DESs) and accelerates the rate of the cycloaddition reaction at atmospheric pressure and low temperature (70 °C). The presence of the hydroxyl functional group of choline and the free amine group of the amino acids in the ILs has a synergistic effect on the activation of the epoxide and carbon dioxide towards the cycloaddition reactions. These ILs are biodegradable and are synthesized from easily available biorenewable sources. Additionally, this catalytic method demonstrates ultimate environmental benignity because of the mild metal‐ and solvent‐free conditions as well as the recyclability of the catalyst and co‐catalyst.
Actual Congestion and Effect of Charger Addition in the Quick Charger Station: Case Study Based on the Records of Expressway
Authors: ODA TAKUYA , AZIZ MUHAMMAD , MITANI TAKASHI , WATANABE YOKO , KASHIWAGI TAKAO 
Published: October 2016

SUMMARYThere were 18 electric vehicles, in average, per quick charger (QC), in Japan as of 2012, and this value may increase by a factor of several dozen by 2020. It is, therefore, necessary to model and analyze QC service, identify the causes of wait time, and provide countermeasures to avoid significant QC congestion and to encourage the spread of QC stations. This research analyzed usage data of a QC installed at an existing service area on expressway, and showed the characteristics of QC demand as distribution functions. QC service was modeled as a queuing problem, and simulations were carried out using derived distribution functions. The results showed that the QC station needs additional charger in the case of daily charging times over 10 times.
Accounting for directionality as a function of structural typology in performance‐based earthquake engineering design
Authors: Nievas Cecilia I. , Sullivan Timothy J. 
Published: October 2016

SummaryFor the seismic design of a structure, horizontal ground shaking is usually considered in two perpendicular directions, even though real horizontal ground motions are complex two‐dimensional phenomena that impose different demands at different orientations. While the issue of ground motion dependence on the orientation of the recording devices has been the focus of many significant developments during the last decade, the effects of directionality on the characteristics of the structure have received less attention. This work presents a proposal to calculate the probability of exceedance of elastic spectral displacements accounting for structural typology and illustrates its relevance by means of its application to two case‐study buildings. In order to ease its implementation in seismic design codes, a simplification is developed by means of a detailed statistical analysis of the results obtained using four sets of real hazard curves. The framework presented herein is considered to represent an important contribution to the field of performance‐based earthquake engineering, permitting improved treatment of directionality effects within seismic risk design and assessment. Copyright © 2016 John Wiley & Sons, Ltd.
Bioaccumulation of methylmercury in a marine copepod
Authors: Lee Cheng-Shiuan , Fisher Nicholas S. 
Published: October 2016

Abstract

Methylmercury (MeHg) is known to biomagnify in marine food chains, resulting in higher concentrations in upper trophic level animals than their prey. To better understand how marine copepods, an important intermediate between phytoplankton and forage fish at the bottom of the food chain, assimilate and release MeHg, the authors performed a series of laboratory experiments using the gamma-emitting radiotracer 203Hg2+ and Me203Hg with the calanoid copepod Acartia tonsa. Assimilation efficiencies of Hg2+ and MeHg ranged from 25% to 31% and 58% to 79%, respectively, depending on algal diets. Assimilation efficiencies were positively related to the fraction of Hg in the cytoplasm of the algal cells that comprised their diet. Efflux rates of Hg2+ (0.29/d) and MeHg (0.21/d) following aqueous uptake were similar, but efflux rates following dietary uptake were significantly lower for MeHg (0.11–0.22/d) than Hg2+ (0.47–0.66/d). The calculated trophic transfer factors in copepods were &gt;1 for MeHg and consistently low (≤0.2) for Hg2+. The authors used the parameters measured to quantitatively model the relative importance of MeHg sources (water or diet) for copepods and to predict the overall MeHg concentrations in copepods in different marine environments. In general, MeHg uptake from the diet accounted for most of the body burden in copepods (&gt;50%). For an algal diet with a MeHg dry weight bioconcentration factor ≥106, &gt;90% of a copepod's MeHg body burden can be shown to derive from the diet. The model-predicted MeHg concentrations in the copepods were comparable to independent measurements for copepods in coastal and open-ocean regions, implying that the measured parameters and model are applicable to natural waters. Environ Toxicol Chem 2017;36:1287–1293. © 2016 SETAC
Effects of xanthan and sugar on the release of aroma compounds in model solution
Authors: Yang Zi‐Yu , Fan Yan‐Ge , Xu Min , Ren Jing‐Nan , Liu Yan‐Long , Zhang Lu‐Lu , Li Jia‐Jia , Zhang Yan , Dong Man , Fan Gang 
Published: October 2016

AbstractThe effects of the interaction of xanthan and sugar on the release of aroma compounds (α‐pinene, ethyl acetate, ethyl butyrate, perillaldehyde, hexenal, and d‐limonene) were investigated in model solutions (xanthan, sugar and xanthan‐sugar solutions). The released aroma compounds were analysed by solid‐phase microextraction and gas chromatography‐mass spectrometer (SPME/GC‐MS). The results showed that the six aroma compounds decreased differently in the 0.4 g·L‐1 xanthan solution. A slightly stronger release of these aroma compounds in glucose solution was observed than that in sucrose solution. The release of these aroma compounds increased in the xanthan solution after the addition of the sucrose. This indicated that the release of these aroma compounds was inhibited in the xanthan solution. But the addition of sucrose in the xanthan solution could promote the release of the aroma compounds. Additionally, the rheology results showed that the xanthan solution exhibited a gradual shear thinning and the C* of xanthan was 2 g·L‐1. However, the concentrations of the xanthan solution which could inhibit the release of the six aroma compounds were not fully consistent with C*. And this indicated that viscosity was not the main factor influencing the release of aroma compounds in the xanthan solution. Copyright © 2016 John Wiley & Sons, Ltd.