bluuebunny/crossref_metadata_2025_split huggingface dataset:
ChemInform Abstract: ANODISCHE OX. VON 2,6‐XYLENOL (I) IN ACETONITRIL AN PLATIN
Authors: IWAKURA C. , TSUNAGA M. , TAMURA H. 
Published: February 2016

AbstractAus Leitfähigkeitsmessungen geht hervor, daß die phenolische Hydroxylgruppe in (I) in Acetonitrillösung, die LiClO4 enthält, nicht dissoziiert ist.
ChemInform Abstract: GEGEN MALARIA WIRKSAME PHENANTHRENAMINOALKOHOLE 2. MITT. TRIFLUORMETHYLGRUPPEN ENTHALTENDE 9‐PHENANTHRENCARBINOLE
Authors: NODIFF E. A. , SAGGIOMO A. J. , SHINBO M. , CHEN E. H. , OTOMATSU H. , KONDO Y. , KIKUCHI T. , VERMA B. L. , MATSUURA SH. , TANABE K. , TYAGI M. P. , MOROSAWA SH. 
Published: February 2016

AbstractAus den Phenylessigsäuren (I) und zahlreichen verschiedenen Benzaldehyden (II) werden die Phenylzimtsäuren (III) dargestellt und zu den Phenanthrencarbonsäuren (IV) cyclisiert.
ChemInform Abstract: 1,3‐DIPOLARE CYCLOADDITIONEN 68. MITT. ADDITIONEN DER NITRILOXIDE AN CN‐MEHRFACHBINDUNGEN
Authors: BAST KLAUS , CHRISTL MANFRED , HUISGEN ROLF , MACK WILHELM 
Published: February 2016

AbstractDas aus dem Hydroximsäurechlorid (I) mit Triäthylamin in situ freigesetzte Nitriloxid lagert sich in Benzol, Aceton oder Äther an Azomethine wie z.B. (II) an und bildet die Oxadiazoline (III).
ChemInform Abstract: DIHYDROPYRIDINE 27. MITT. RK. VON 3,5‐DIACETYL‐PYRIDIN MIT KOMPLEXEN HYDRIDEN UND ORGANO‐METALL‐REAGENTIEN
Authors: PALECEK J. , VAVRUSKA L. , KUTHAN J. 
Published: February 2016

AbstractAbweichend vom Verhalten der entsprechenden Ester und Nitrile werden bei der Reaktion des Diketons (I) mit LiAlH4 oder Na‐borhydrid bzw. Methyl‐Mgjodid überwiegend die Diole (IIa) (Ausbeute 98%) bzw. (IIb) (62%) gebildet.
ChemInform Abstract: IMINOAETHER 1. MITT. ALLGEMEINE SYNTH. VON PYRIDONEN UND KONDENSIERTEN PYRIDONEN
Authors: RAJAPPA S. , ADVANI B. G. , SREENIVASAN R. 
Published: February 2016

AbstractIminoäther des Typs (I) liefern mit dem Diester (II) in Gegenwart von Triäthylamin die Pyridonderivate (III).
ChemInform Abstract: KONDENSIERTE THIOPHEN‐RINGSYST. 9. MITT. SYNTH. UND RK. VON (1)BENZOTHIENO(3,2‐C)CINNOLINEN
Authors: CHIPPENDALE K. E. , IDDON B. , SUSCHITZKY H. 
Published: February 2016

AbstractDie wäßrigen Lösungen der aus den Aminophenyl‐Derivaten (I) erhaltenen Diazoniumchloride liefern bei Raumtemperatur die Benzothienocinnoline (II).
ChemInform Abstract: EINWIRKUNG VON CARBONYLREAGENTIEN UND DIAZOMETHAN AUF 2‐STYRYL‐3,1‐BENZOXAZ‐4‐ONE UND 2‐STYRYL‐3‐ALKYL‐CHINAZOL‐4‐ONE 2. MITT.
Authors: NOSSEIR M. H. , MESSIHA N. N. , GABRA G. G. 
Published: February 2016

AbstractNach bekannten Verfahren hergestellte Benzoxazone und Chinazolone (Ia)‐(Ie) bzw. (IIa)‐(IIe) werden mit verschiedenen Carbonylreagentien sowie mit Diazomethan umgesetzt.
ChemInform Abstract: EIN NEUES RINGSYST. AUS ISOCHINOLIN‐METHOJODID UND AKTIVEN METHYLENVERBINDUNGEN
Authors: SCHLEIGH W. R. 
Published: February 2016

AbstractIsochinolin‐methojodid (I) reagiert mit Nitroäthan (IIb) zu einem po1ycyclisehen Kondensat (IIIb), mit Nitromethan (IIa) zu (IIIa).
ChemInform Abstract: PROPARGYL‐ UND ALLENYL‐BORVERBINDUNGEN, O‐ UND N‐HALTIGE HETEROCYCLEN
Authors: L'HONORE ALAIN , SOULIE JOSETTE , CADIOT PAUL 
Published: February 2016

AbstractDie Boronate (III) und (IV) (45‐76% Gesamtausbeute) werden durch Grignard‐ Reaktion der Bromide (I) mit dem Borat (II) erhalten.
ChemInform Abstract: KOMPLEXE VON 8‐AMINO‐2‐METHYLCHINOLIN MIT KOBALT(II)
Authors: POWER L. F. , KING J. A. 
Published: February 2016

AbstractDie Titelkomplexe (I) und (II) wurden durch Reaktion des entsprechenden Metallsalzes mit dem Liganden in Methanol oder Aceton dargestellt und teilweise als Hydrate isoliert.
ChemInform Abstract: EIN ORAL WIRKSAMES PROSTAGLANDIN, ICI 74,205, ALS NEUES FRUCHTBARKEITSHEMMENDES MITTEL
Authors: LABHSETWAR A. P. 
Published: February 2016

AbstractDas zum Prostaglandin Fga (I) homologe ICI 74,205 (II) mit einer um zwei Kohlenstoffatome verlängerten Seitenkette besitzt bei Hamstern bei oraler Gabe eine 20‐fach höhere schwangerschaftsabbrechende Wirkung g als (I).
ChemInform Abstract: DIE SILBER/SILBEROXID‐ELEKTRODE 1. MITT. ENTWICKLUNG DER ELEKTRODE DURCH LANGSAME WECHSELSTROMZYKLISIERUNG
Authors: HOAR T. P. , DYER C. K. 
Published: February 2016

AbstractDie Menge von Ag2O und AgO, welche in gewissen Potentialbereichen an einer ebenen Silberelektrode im lm KOH gebildet und reduziert wird, wird durch die Geschwindigkeit der Potentialänderung innerhalb dieses Bereiches beeinflußt. Bei Geschwindigkeiten von ca. 2 V/min und mehr wird die elektrochemische Aktivität, welche mit der Bildung und Reduktion von AgO verbunden ist, durch eine Aktivität bei einem deutlich höheren Elektrodenpotential ersetzt.
ChemInform Abstract: ELEKTROHALOGENIERUNG VON URACIL
Authors: MEINERT HASSO , CECH DIETER 
Published: February 2016

AbstractUracil (I) liefert bei der Elektrolyse in verschiedenen Lösungsmitteln mit Chloriden, Bromiden, Jodiden bzw. Cyaniden (II) an Pt‐Elektroden (O,l‐5 V) die substituierten Uracile (III) als einzige Reaktionsprodukte.
ChemInform Abstract: FOLSAEURE‐ANTAGONISTEN 4. MITT. MALARIA‐ UND METABOLIT‐WIRKUNG VON 2,4‐DIAMINO‐6‐BENZYLAMINO‐PYRIDO(2,3‐D)PYRIMIDINEN
Authors: DAVOLL J. , CLARKE J. , ELSLAGER E. F. 
Published: February 2016

AbstractAus dem Pyridon (I) entsteht mit Phosphoroxychlorid/Pho′sphorpentachlorid das 2‐Chlor‐3‐cyan‐5‐nitro‐pyridin (II), das mit Guanidin zur Diaminonitro‐verbindung (IIIa) kondensiert wird.
Vapour phase selective oxidation of 2‐methylnaphthalene to 2‐methyl‐1,4‐naphthoquinone on composite vanadium catalyst
Authors: Zhang Fang , Li Xiaocong , Tang Yaocun , Gao Xiaoqiang , Xu Li , Liu Guoji 
Published: February 2016

AbstractThe selective vapour‐phase oxidation of 2‐MN to 2‐MNQ was investigated effectively in the presence of a composite vanadium catalyst. The catalyst was prepared by impregnation. It was characterized by XRD, BET, SEM, etc. The activity of the catalyst was tested in a fixed bed reactor by the selective oxidation of 2‐MN to 2‐MNQ, and the process conditions were optimized. The proper reaction temperature was 663 K, the space velocity was 200 mL · (g · min)−1, and the material flow was 3 μL · min−1. The 2‐MN conversion rate was 80.01  %, and the yield of 2‐MNQ was 45.84  %. Compared to previous procedures for this type of reaction, the reaction is more environmentally friendly and is suitable for large‐scale industrial production.
Successive Translocation of the Rings in a [3]Rotaxane
Authors: Jagesar Dhiredj C. , Wiering Piet G. , Kay Euan R. , Leigh David A. , Brouwer Albert M. 
Published: February 2016

AbstractA [2]rotaxane, a [3]rotaxane and the corresponding thread containing two succinamide (succ) binding stations and a central redox‐active pyromellitimide (pmi) station were studied. Infrared spectroelectrochemical experiments revealed the translocation of the macrocycle between the succinamide station and the electrochemically reduced pmi station (radical anion and dianion). Remarkably, in the [3]rotaxane, the rings can be selectively translocated. One‐electron reduction leads to the translocation of one of the two macrocycles from the succinamide to the pyromellitimide station, whereas activation of the shuttle through two‐electron reduction results in the translocation of both macrocycles: the dianion, due to its higher electron density and hence greater hydrogen‐bond accepting affinity, is hydrogen bonded to both macrocycles. Systems with such an on‐command contraction are known as molecular muscles. The relative strengths of the binding between the macrocycle and the imide anions could be estimated from the hydrogen‐bond‐induced shifts in the C=O stretching frequencies of hydrogen‐bond accepting amide groups of the macrocycle.
Metallomesogens with Luminescent Behaviour: Palladium Complexes Derived from Alkylamide Tetraarylporphyrins
Authors: Moura Nuno M. M. , Cuerva Cristián , Cavaleiro José A. S. , Mendes Ricardo F. , Almeida Paz Filipe A. , Cano Mercedes , Neves M. Graça P. M. S. , Lodeiro Carlos 
Published: February 2016

AbstractInvited for this month's cover are collaborators from the University of Aveiro, the NOVA University of Lisbon (Faculty of Science and Technology‐FCT) and the Complutense University of Madrid. The cover picture shows the crystal structure of a PdII derivative belonging to a new family of metal complexes supported by meso‐tetraaryl‐substituted porphyrin ligands. The liquid crystal behaviour of a PdII complex is shown at centre of the picture. Read the full text of the article at 10.1002/cplu.201500557.
Charged Dust Motion in Dust Devils on Earth and Mars
Authors: Izvekova Yu. N. , Popel S. I. 
Published: February 2016

AbstractDust particle dynamics is modeled in the so‐called Dust Devils (DDs), which are a widespread event on Earth and Mars. We develop methods for the description of dust particle charging in DDs, discuss the ionization processes in DDs, and model charged dust particle motion. Our conclusions are consistent with the fact that DDs can lift a big amount of dust from the surface of a planet into its atmosphere. (© 2016 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Effect of Dipole‐Dipole Interaction on the Compressional Oscillations in Two‐Dimensional Yukawa liquids
Authors: Ramazanov T. S. , Gabdulin A. Zh. , Moldabekov Zh. A. 
Published: February 2016

AbstractThe paper presents the study of oscillations in the two‐dimensional Yukawa liquids where the interparticle interaction potential in addition to the Yukawa term has the dipole‐dipole interaction term. The frequency of longitudinal oscillations was studied using the Fourier transform of the velocity autocorrelation function. It was found that in the two‐dimensional Yukawa liquids the longitudinal oscillation frequency of particles becomes sensitive to variations in the coupling parameter if even weak additional dipole‐dipole interaction between particles exists. (© 2016 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Polarization of a Dust Particle and Surrounded Plasma in an External Electric Field
Authors: Sukhinin G. I. , Fedoseev A. V. , Salnikov M. V. 
Published: February 2016

AbstractNumerical investigations of different properties of the system of a dust particle and ion cloud are presented. The model is based on the solution of Newton equations for ion trajectories with Monte‐Carlo simulations for the ions initial position, velocity distribution, and mean three path. The calculations of the ion density distribution around a single dust particle were made taking into account the presence of an external electric field. The dust particle charge was calculated self‐consistently taking into account the ion and the electron fluxes towards the dust particle. A two‐dimensional spatial distribution of the electric potential was found in the assumption of weak spatial anisotropy for the case of a small external electric field. The dipole moment and polarization coefficient of the system of “dust particle ‐ ion cloud” was obtained for different values of the ions mean free path and the external electric field. The results showed that the polarization of such a system is significant, it influences the interaction between different dust particles and should be taken into account. (© 2016 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
The Quaternary evolutionary history, potential distribution dynamics, and conservation implications for a Qinghai–Tibet Plateau endemic herbaceous perennial, Anisodus tanguticus (Solanaceae)
Authors: Wan Dong‐Shi , Feng Jian‐Ju , Jiang De‐Chun , Mao Kang‐Shan , Duan Yuan‐Wen , Miehe Georg , Opgenoorth Lars 
Published: February 2016

AbstractVarious hypotheses have been proposed about the Quaternary evolutionary history of plant species on the Qinghai–Tibet Plateau (QTP), yet only a handful of studies have considered both population genetics and ecological niche context. In this study, we proposed and compared climate refugia hypotheses based on the phylogeographic pattern of Anisodus tanguticus (three plastid DNA fragments and nuclear internal transcribed spacer regions from 32 populations) and present and past species distribution models (SDMs). We detected six plastid haplotypes in two well‐differentiated lineages. Although all haplotypes could be found in its western (sampling) area, only haplotypes from one lineage occurred in its eastern area. Meanwhile, most genetic variations existed between populations (FST = 0.822). The SDMs during the last glacial maximum and last interglacial periods showed range fragmentation in the western area and significant range contraction in the eastern area, respectively, in comparison with current potential distribution. This species may have undergone intraspecific divergence during the early Quaternary, which may have been caused by survival in different refugia during the earliest known glacial in the QTP, rather than geological isolation due to orogenesis events. Subsequently, climate oscillations during the Quaternary resulted in a dynamic distribution range for this species as well as the distribution pattern of its plastid haplotypes and nuclear genotypes. The interglacial periods may have had a greater effect on A. tanguticus than the glacial periods. Most importantly, neither genetic data nor SDM alone can fully reveal the climate refugia history of this species. We also discuss the conservation implications for this important Tibetan folk medicine plant in light of these findings and SDMs under future climate models. Together, our results underline the necessity to combine phylogeographic and SDM approaches in future investigations of the Quaternary evolutionary history of species in topographically complex areas, such as the QTP.
Functionalized 1′‐Substituted Iodoferrocenes and Their Pd‐Catalyzed Heck Cross‐Coupling Reactions
Authors: Roemer Max , Donnadieu Bruno , Nijhuis Christian A. 
Published: February 2016

AbstractThis paper describes the preparation of a variety of 1′‐substituted iodoferrocenes from 1‐iodo‐1′‐(tri‐n‐butyltin)ferrocene by an electrophilic substitution of the tri‐n‐butyltin moiety with functionalized acylium and benzoylium species. Additionally, we demonstrate a Heck coupling protocol for these functionalized iodoferrocenes with ethenylferrocene.
Detecting and Preventing the Formation of Photosensitizer‐Catalyst Colloids in Homogeneous Light‐Driven Water Oxidation
Authors: Kirchhoff Björn , Rau Sven , Streb Carsten 
Published: February 2016

AbstractCombining cationic ruthenium photosensitizers (RuPS) with anionic polyoxometalate water oxidation catalysts (POM‐WOCs) is the standard approach for light‐driven POM‐based water oxidation. Here, we show that colloid formation by electrostatic aggregation of a molecular photosensitizer {e.g., [Ru(bpy)3]2+ (bpy = 2,2′‐bipyridine)} and a POM‐WOC {e.g., [Co4(H2O)2(α‐PW9O34)2]10–} significantly affects catalytically relevant system parameters. A facile, quantitative procedure for colloid detection using syringe filtration and UV/Vis spectroscopy is presented, and we illustrate that photosensitizer‐POM colloid formation is a general phenomenon under typical WOC conditions and is observed for a range of photosensitizers and POMs. It is further demonstrated that for some systems an increase in the ionic strength of the solution prevents colloid formation. Significant changes in the electronic interactions between RuPS and POM‐WOC under colloidal and homogeneous conditions are reported, thus highlighting the need for fast and reliable colloid identification. In addition, the study raises awareness about colloid formation in homogeneous solar‐energy conversion schemes driven by two or more ionic species.
Synthetic Applications of Hypervalent Iodine(III) Reagents Enabled by Visible Light Photoredox Catalysis
Authors: Wang Lianjie , Liu Jun 
Published: February 2016

AbstractRecent advances in the development of environmentally friendly reagents and catalytic systems are discussed. Hypervalent iodine(III) reagents are generally considered to be environmentally friendly, due to their oxidizing properties (comparable with those of heavy metals), in combination with relatively high stability and easy availability. In addition, visible‐light photoredox catalysis has been emerging as one of the most rapidly growing fields in organic chemistry. Under visible‐light irradiation, photoredox catalysis typically provides reactive radical species under remarkably mild, environmentally friendly and sustainable conditions. Recently, many groups have utilized visible‐light‐absorbing photoredox catalysts to sensitize hypervalent iodine(III) reagents. In this review we summarize recent applications of hypervalent iodine(III) reagents in visible‐light photoredox catalysis.
A Short and Efficient Approach for the Total Synthesis of (S)‐Zearalenone and (R)‐De‐O‐methyllasiodiplodin by Using Stille and RCM Protocols
Authors: Kumar Dey Sujit , Ataur Rahman Mohammad , Alkhazim Alghamdi Ahmad , Reddy Basi V. Subba , Yadav Jhillu S. 
Published: February 2016

AbstractA concise, flexible, and linear approach has been devised for the total synthesis of the resorcinylic acid lactones (S)‐zearalenone (2) and (R)‐de‐O‐methyllasiodiplodin (4) by using a Stille cross‐coupling strategy. The other key steps of the synthesis include a ring‐closing metathesis (RCM), a chemoselective reduction of an α,β‐unsaturated ketone, and a transesterification reaction.
Preakuammicine: A Long‐Awaited Missing Link in the Biosynthesis of Monoterpene Indole Alkaloids
Authors: Benayad Sarah , Ahamada Kadiria , Lewin Guy , Evanno Laurent , Poupon Erwan 
Published: February 2016

Abstract(16S)‐Preakuammicine has been considered a key intermediate in the biosynthesis of monoterpene indole alkaloids since the 1970s. Indeed, preakuammicine plays a crucial role in the biosynthesis of type II and type III monoterpene indole alkaloids and strychnine. In this paper, we disclose the unprecedented biomimetic transformation of akuammiline into (16R)‐acetylpreakuammicine, which ultimately gives mechanistic insight into a missing step in biosynthetic pathways. This work affords the first spectroscopic data for this never‐described framework. The C16 stereochemistry of preakuammicine involved in the biosynthesis of akuammicine is reassigned and leads to the consideration of both the (16R) and the (16S) diastereomers of preakuammicine as biosynthetic intermediates.
Wearable Biofuel Cells: A Review
Authors: Bandodkar Amay J. , Wang Joseph 
Published: February 2016

AbstractThis review describes recent advances in the emerging field of wearable biofuel cells. The needs for developing viable energy sources to power wearable electronics are discussed along with the prospects of harvesting usable electrical energy from metabolites present in biofluids. Particular attention is given to recently developed strategies for harnessing energy from sweat and tears using non‐invasive and minimally‐invasive enzymatic biofuel cells to power wearable devices. Such efforts to develop wearable biofuel cell are discussed with special emphasis to the challenges facing this field, and possible routes to address these issues and moving the field forward. Finally, we also discuss the future prospects and opportunities that will enable new and exciting wearable biofuel‐cell energy harvesting platforms for catering to various wearable applications.
Evaluation of seismic performance of pile‐supported models in liquefiable soils
Authors: Lombardi D. , Bhattacharya S. 
Published: February 2016

SummaryThe seismic performance of four pile‐supported models is studied for two conditions: (i) transient to full liquefaction condition, i.e. the phase when excess pore pressure gradually increases during the shaking; (ii) full liquefaction condition, i.e. defined as the state where the seismically induced excess pore pressure equalises to the overburden stress. The paper describes two complementary analyses consisting of an experimental investigation, carried out at normal gravity on a shaking table, and a simplified numerical analysis, whereby the soil–structure interaction (SSI) is modelled through non‐linear Winkler springs (commonly known as p–y curves). The effects of liquefaction on the SSI are taken into account by reducing strength and stiffness of the non‐liquefied p–y curves by a factor widely known as p‐multiplier and by using a new set of p–y curves. The seismic performance of each of the four models is evaluated by considering two different criteria: (i) strength criterion expressed in terms of bending moment envelopes along the piles; (ii) damage criterion expressed in terms of maximum global displacement. Comparison between experimental results and numerical predictions shows that the proposed p–y curves have the advantage of better predicting the redistribution of bending moments at deeper elevations as the soil liquefies. Furthermore, the proposed method predicts with reasonable accuracy the displacement demand exhibited by the models at the full liquefaction condition. However, disparities between computed and experimental maximum bending moments (in both transient and full liquefaction conditions) and displacement demands (during transient to liquefaction condition) highlight the need for further studies. Copyright © 2016 The Authors Earthquake Engineering & Structural Dynamics Published by John Wiley & Sons Ltd.
Model‐based evaluation of impact of soil redistribution on soil organic carbon stocks in a temperate hedgerow landscape
Authors: Lacoste Marine , Viaud Valérie , Michot Didier , Walter Christian 
Published: February 2016

AbstractAgroforestry systems are promoted for providing a number of ecosystem services and environmental benefits, including soil protection and carbon sequestration. This study proposes a modelling approach to quantify the impact of soil redistribution on soil organic carbon (SOC) storage in a temperate hedgerow landscape. Evolution of SOC stocks at the landscape scale was examined by simulating vertical and horizontal SOC transfers in the 0–105 cm soil layer due to soil redistribution by tillage and water processes. A spatially explicit SOC dynamics model (adapted from RothC‐26.3) was used, coupled with a soil‐redistribution model (LandSoil). SOC dynamics were simulated over 90 years in an agricultural hedgerow landscape dedicated to dairy farming, with a mix of cropping and grasslands. Climate and land use were simulated considering business‐as‐usual scenarios derived from existing information on the study area. A net decrease in SOC stocks was predicted at the end of the simulation period. Soil redistribution induced a net SOC loss equivalent to 2 kg C ha−1 yr−1 because of soil exportation out of the study site and an increase in SOC mineralization. Hedgerows and woods were the only land use in which soil redistribution induced net SOC storage. Soil tillage was the main process that induced soil redistribution within cultivated fields. Soil exportation out of the study area was due to erosion by water, but remained low because of the protective role of the hedgerow network. These soil transfers redistributed SOC stocks in the landscape, mostly within cultivated fields. Copyright © 2016 John Wiley & Sons, Ltd.