bluuebunny/crossref_metadata_2025 huggingface dataset:
Optimal interpolation analysis of high‐latitude ionospheric Hall and Pedersen conductivities: Application to assimilative ionospheric electrodynamics reconstruction
Authors: McGranaghan Ryan , Knipp Delores J. , Matsuo Tomoko , Cousins Ellen
Published: May 2016

We have developed a new optimal interpolation (OI) technique to estimate complete high‐latitude ionospheric conductance distributions from Defense Meteorological Satellite Program particle data. The technique combines particle precipitation‐based calculations of ionospheric conductances and their errors with a background model and its error covariance (modeled with empirical orthogonal functions) to infer complete distributions of the high‐latitude ionospheric conductances. We demonstrate this technique for the 26 November through 2 December 2011 period and analyze a moderate geomagnetic storm event on 30 November 2011. Quantitatively and qualitatively, this new technique provides better ionospheric conductance specification than past statistical models, especially during heightened geomagnetic activity. We provide initial evidence that auroral images from the Defense Meteorological Satellite Program Special Sensor Ultraviolet Spectrographic Imager instrument can be used to further improve the OI conductance maps. Our OI conductance patterns allow assimilative mapping of ionospheric electrodynamics reconstructions driven separately by radar and satellite magnetometer observations to be in closer agreement than when other, commonly used, conductance models are applied. This work (1) supports better use of the diverse observations available for high‐latitude ionospheric electrodynamics specification and (2) supports the Cousins et al. (2015b) assertion that more accurate models of the ionospheric conductance are needed to robustly assimilate ground‐ and space‐based observations of ionospheric electrodynamics. We find that the OI conductance distributions better capture the dynamics and locations of discrete electron precipitation that modulate the coupling of the magnetosphere‐ionosphere‐thermosphere system.
Three‐Dimensional Printing of Multifunctional Nanocomposites: Manufacturing Techniques and Applications
Authors: Farahani Rouhollah D. , Dubé Martine , Therriault Daniel
Published: May 2016

The integration of nanotechnology into three‐dimensional printing (3DP) offers huge potential and opportunities for the manufacturing of 3D engineered materials exhibiting optimized properties and multifunctionality. The literature relating to different 3DP techniques used to fabricate 3D structures at the macro‐ and microscale made of nanocomposite materials is reviewed here. The current state‐of‐the‐art fabrication methods, their main characteristics (e.g., resolutions, advantages, limitations), the process parameters, and materials requirements are discussed. A comprehensive review is carried out on the use of metal‐ and carbon‐based nanomaterials incorporated into polymers or hydrogels for the manufacturing of 3D structures, mostly at the microscale, using different 3D‐printing techniques. Several methods, including but not limited to micro‐stereolithography, extrusion‐based direct‐write technologies, inkjet‐printing techniques, and popular powder‐bed technology, are discussed. Various examples of 3D nanocomposite macro‐ and microstructures manufactured using different 3D‐printing technologies for a wide range of domains such as microelectromechanical systems (MEMS), lab‐on‐a‐chip, microfluidics, engineered materials and composites, microelectronics, tissue engineering, and biosystems are reviewed. Parallel advances on materials and techniques are still required in order to employ the full potential of 3D printing of multifunctional nanocomposites.
Whole exome sequencing reveals de novo pathogenic variants in KAT6A as a cause of a neurodevelopmental disorder
Authors: Millan Francisca , Cho Megan T. , Retterer Kyle , Monaghan Kristin G. , Bai Renkui , Vitazka Patrik , Everman David B. , Smith Brooke , Angle Brad , Roberts Victoria , Immken LaDonna , Nagakura Honey , DiFazio Marc , Sherr Elliott , Haverfield Eden , Friedman Bethany , Telegrafi Aida , Juusola Jane , Chung Wendy K. , Bale Sherri
Published: May 2016

Neurodevelopmental disorders (NDD) are common, with 1–3% of general population being affected, but the etiology is unknown in most individuals. Clinical whole‐exome sequencing (WES) has proven to be a powerful tool for the identification of pathogenic variants leading to Mendelian disorders, among which NDD represent a significant percentage. Performing WES with a trio‐approach has proven to be extremely effective in identifying de novo pathogenic variants as a common cause of NDD. Here we report six unrelated individuals with a common phenotype consisting of NDD with severe speech delay, hypotonia, and facial dysmorphism. These patients underwent WES with a trio approach and de novo heterozygous predicted pathogenic novel variants in the KAT6A gene were identified. The KAT6A gene encodes a histone acetyltransfrease protein and it has long been known for its structural involvement in acute myeloid leukemia; however, it has not previously been associated with any congenital disorder. In animal models the KAT6A ortholog is involved in transcriptional regulation during development. Given the similar findings in animal models and our patient's phenotypes, we hypothesize that KAT6A could play a role in development of the brain, face, and heart in humans. © 2016 Wiley Periodicals, Inc.
Access to Air‐Stable 1,3‐Diphosphacyclobutane‐2,4‐diyls by an Arylation Reaction with Arynes
Authors: Ueta Yasuhiro , Mikami Koichi , Ito Shigekazu
Published: May 2016

Tuning of the physicochemical properties of the 1,3‐diphosphacyclobutane‐2,4‐diyl unit is attractive in view of materials applications. The use of arynes is shown to be effective for installing relatively electron rich aryl substituents into the open‐shell singlet P‐heterocyclic system. Treatment of the sterically encumbered 1,3‐diphosphacyclobuten‐4‐yl anion with ortho‐silylated aryl triflates in the presence of fluoride under appropriate conditions afforded the corresponding 1‐aryl 1,3‐diphosphacyclobutane‐2,4‐diyls. The air‐stable open‐shell singlet P‐heterocycles exhibit considerable electron‐donating character, and the aromatic substituent influences the open‐shell character, which is thought to be related to the property of p‐type semiconductivity. The P‐arylated 1,3‐diphosphacyclobutane‐2,4‐diyl systems can be further utilized as detectors of hydrogen fluoride (HF), which causes a remarkable change in their photoabsorption properties.
Triple‐Mode Emission of Carbon Dots: Applications for Advanced Anti‐Counterfeiting
Authors: Jiang Kai , Zhang Ling , Lu Junfeng , Xu Chunxiang , Cai Congzhong , Lin Hengwei
Published: May 2016

Photoluminescence (PL), up‐conversion PL (UCPL), and phosphorescence are three kinds of phenomena common to light‐emitting materials, but it is very difficult to observe all of them simultaneously when they are derived from a single material at room temperature. For the first time, triple‐mode emission (that is, PL, UCPL, and room temperature phosphorescence (RTP)) is reported, which relies on a composite of the luminescent carbon dots (CDs) prepared from m‐phenylenediamine and poly(vinyl alcohol) (PVA). Moreover, the CDs‐PVA aqueous dispersion is nearly colorless and demonstrates promise as a triple‐mode emission ink in the field of advanced anti‐counterfeiting.
Semi‐Crystalline Polar Polyethylene: Ester‐Functionalized Linear Polyolefins Enabled by a Functional‐Group‐Tolerant, Cationic Nickel Catalyst
Authors: Long Brian K. , Eagan James M. , Mulzer Michael , Coates Geoffrey W.
Published: May 2016

A dibenzobarrelene‐bridged, α‐diimine NiII catalyst (rac‐3) was synthesized and shown to have exceptional behavior for the polymerization of ethylene. The catalyst afforded high molecular weight polyethylenes with narrow dispersities and degrees of branching much lower than those made by related α‐diimine nickel catalysts. Catalyst rac‐3 demonstrated living behavior at room temperature, produced linear polyethylene (Tm=135 °C) at −20 °C, and, most importantly, was able to copolymerize ethylene with the biorenewable polar monomer methyl 10‐undecenoate to yield highly linear ester‐functionalized polyethylene.
Perovskite materials in energy storage and conversion
Authors: Zhu Liang , Ran Ran , Tadé Moses , Wang Wei , Shao Zongping
Published: May 2016

In this review, the recent progress in the application of an important category of materials, i.e. ABO3 perovskite‐type compounds in the fields of energy storage and conversion, is reviewed. Four main areas, as materials for oxygen transporting membrane toward the application in oxy‐fuel combustion, as key material for solid oxide fuel cells for efficient power generation from fuels, as room‐temperature electrocatalysts for oxygen reduction reaction and oxygen evolution reaction, and as material for solar cells for solar energy harvest, are referred. Our past efforts in these research areas are emphasized. Some prospects about the future development in the application of perovskite materials in energy storage and conversion is proposed. Copyright © 2016 Curtin University of Technology and John Wiley & Sons, Ltd.
Design, Synthesis, and Characterization of Some Hybridized Pyrazolone Pharmacophore Analogs against Mycobacterium tuberculosis
Authors: Krishnasamy Sivakumar Kullampalayam , Namasivayam Vigneshwaran , Mathew Sincy , Eakambaram Ragavendran S. , Ibrahim Ibrahim A. , Natarajan Adhirajan , Palaniappan Senthilkumar
Published: May 2016

Twenty‐seven hybridized pyrazolone analogs were designed, docked, synthesized in two series and evaluated for their in vitro antimycobacterial properties. In the first series, four Schiff base derivatives, 6b, 7b, 7h, and 7i, show good antitubercular activity with minimum inhibition concentration (MIC) values in the range of 32.56–42.55 µM. In the second series, two compounds, 8b and 8c, possessed significant antitubercular activity with MIC <0.37 and <0.44 μM, respectively; they were even more potent than the standards pyrazinamide (12.99 μM), ciprofloxacin (4.82 μM), and streptomycin (5.36 μM), with a selectivity index of >630. Compounds 8b and 8c showed shikimate kinase inhibition activity at 5.84 and 6.93 µM, respectively. The activity and docking results lead to the conclusion that the compounds without double bond in the imine side chain and hydrophobic clashes at the pyrazolone end are necessary for good accommodation in the binding pocket and for imparting flexibility. All the compounds were also tested for antimicrobial activity (antibacterial and antifungal) and show highly significant activities against all the microorganisms tested.
Ultraluminous X‐ray sources: Three exciting years
Authors: Bachetti M.
Published: May 2016

The extreme extragalactic sources known as Ultraluminous X‐ray Sources (ULX) represent a unique testing environment for compact objects population studies and the accretion process. Their nature has long been disputed. Their luminosity, well above the Eddington luminosity for a stellar‐mass black hole, can imply the presence of an intermediate‐mass black hole or a stellar black hole accreting above the Eddington limit. Both these interpretations are important to understand better the accretion process and the evolution of massive black holes. The last few years have seen a dramatic improvement of our knowledge of these sources. In particular, the super‐Eddington interpretation for the bulk of the ULX population has gained a strong consensus. Nonetheless, exceptions to this general trend do exist, and in particular one ULX was shown to be a neutron star, and another was shown to be a very likely IMBH candidate. In this paper, I will review the most relevant results in this field of research in the last few years. (© 2016 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Accretion disc atmospheres and winds in low‐mass X‐ray binaries
Authors: Díaz Trigo M. , Boirin L.
Published: May 2016

In the last decade, X‐ray spectroscopy has enabled a wealth of discoveries of photoionised absorbers in X‐ray binaries. Studies of such accretion disc atmospheres and winds are of fundamental importance to understand accretion processes and possible feedback mechanisms to the environment. In this work, we review the current observational state and theoretical understanding of accretion disc atmospheres and winds in low‐mass X‐ray binaries, focusing on the wind launching mechanisms and on the dependence on accretion state. We conclude with issues that deserve particular attention. (© 2016 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
The innermost extremes of black hole accretion
Authors: Fabian A.C.
Published: May 2016

The inner 20 gravitational radii around the black hole at the centre of luminous active galactic nuclei and stellar mass black hole binaries are now being routinely mapped by X‐ray spectral‐timing techniques. Spectral blurring and reverberation of the reflection spectrum are key tools in this work. In the most extreme AGN cases with high black hole spin, when the source appears in a low state, observations probe the region within 1 gravitational radius of the event horizon. The location, size, and operation of the corona which generates the power‐law X‐ray continuum is also being revealed. (© 2016 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Unwrapping the X‐ray spectra of active galactic nuclei
Authors: Reynolds C.S.
Published: May 2016

Active galactic nuclei (AGN) are complex phenomena. At the heart of an AGN is a relativistic accretion disk around a spinning supermassive black hole (SMBH) with an X‐ray emitting corona and, sometimes, a relativistic jet. On larger scales, the outer accretion disk and molecular torus act as the reservoirs of gas for the continuing AGN activity. And on all scales from the black hole outwards, powerful winds are seen that probably affect the evolution of the host galaxy as well as regulate the feeding of the AGN itself. In this review article, we discuss how X‐ray spectroscopy can be used to study each of these components. We highlight how recent measurements of the high‐energy cutoff in the X‐ray continuum by NuSTAR are pushing us to conclude that X‐ray coronae are radiatively‐compact and have electron temperatures regulated by electron‐positron pair production. We show that the predominance of rapidly‐rotating objects in current surveys of SMBH spin is entirely unsurprising once one accounts for the observational selection bias resulting from the spin‐dependence of the radiative efficiency. We review recent progress in our understanding of fast (v ∼ (0.1–0.3)c, highly‐ionized (mainly visible in Fe xxv and Fe xxvi lines), high‐column density winds that may dominate quasar‐mode galactic feedback. Finally, we end with a brief look forward to the promise of Astro‐H and future X‐ray spectropolarimeters. (© 2016 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Unveiing the X‐ray/UV properties of disk winds in active galactic nuclei using broad and mini‐broad absorption line quasars
Authors: Giustini M.
Published: May 2016

We present the results of the uniform analysis of 46 XMM‐Newton observations of six BAL and seven mini‐BAL QSOs belonging to the Palomar‐Green Quasar catalogue. Moderate‐quality X‐ray spectroscopy was performed with the EPIC‐pn, and allowed to characterise the general source spectral shape to be complex, significantly deviating from a power law emission. A simple power law analysis in different energy bands strongly suggests absorption to be more significant than reflection in shaping the spectra. If allowing for the absorbing gas to be either partially covering the continuum emission source or to be ionised, large column densities of the order of 1022–1024 cm–2 are inferred. When the statistics was high enough, virtually every source was found to vary in spectral shape on various time scales, from years to hours. All in all these observational results are compatible with radiation driven accretion disk winds shaping the spectra of these intriguing cosmic sources. (© 2016 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Broadband X‐ray study of the galactic black hole binary 4U 1630‐47 with Suzaku
Authors: Hori T. , Ueda Y. , Done C. , Shidatsu M. , Kawamuro T. , Kubota A. , Nakahira S.
Published: May 2016

We present the results from our Suzaku observations of the Galactic black hole binary 4U 1630‐47. 4U 1630‐47 was observed in the very high state (VHS) during the 2012 September–October outburst. The inner disk appears slightly truncated by comparison with a previous high/soft state (HSS) of this source, even by taking into account energetic coupling between the disk and corona. The spectra do not show the Doppler‐shifted emission lines indicating baryonic jets that were seen four days previously in an XMM‐Newton observation, despite the source being in a similar state. There are no significant absorption lines from highly ionized iron ions. We also observed 4U 1630‐47 in the HSS simultaneously with Suzaku and NuSTAR in an early epoch of the 2015 outburst. All Suzaku spectra in the HSS show variable iron‐K absorption line features. We find that the ionization state of the disk wind rapidly increased when the continuum showed significant spectral hardening. This behavior is consistent with that expected from a thermally driven wind. (© 2016 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
The radio/X‐ray correlation in Swift J1753.5–0127
Authors: Kolehmainen M. , Fender R. , Jonker P. G. , Miller‐Jones J. C. A. , Homan J. , Anderson G. E. , Staley T. D. , Rumsey C. , Titterington D. J. , Broderick J. W. , Sivakoff G. R. , Deller A.
Published: May 2016

Great effort has gone into trying to explain the two observed radio/X‐ray correlation tracks seen in the low/hard state of black hole X‐ray binaries in recent years. The original, “standard” correlation of the form LR ∝ LbX, where b = 0.7 ± 0.1, is paired with a separate, lower correlation track with a steeper slope of ∼ 1–1.4, at least at high luminosities. These outlier sources seem to show fainter radio emission than expected for a given X‐ray luminosity, thus acquiring the term “radio‐quiet”. While most sources seem to maintain their intrinsic correlation slopes over decades in luminosity, a growing sample of sources have recently been reported to move from one correlation to the other. We present preliminary results from a coordinated radio/X‐ray monitoring campaign of the radio‐quiet black hole binary Swift J1753.5–0127, spanning nearly two years in time. Our observations add lower‐luminosity coverage to an existing sample of observations, and we observe the radio‐quiet track to proceed horizontally towards the standard correlation as the X‐ray luminosity slowly starts to decrease. The source stays on the transition track for ∼ 60 days, during which its X‐ray luminosity is observed to drop by more than an order of magnitude while its radio luminosity stays constant. Time‐averaged X‐ray energy spectra show very little change during this phase, leaving no obvious parameters to explain the observed transition behaviour. (© 2016 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Driving extreme variability: Measuring the evolving coronæ and evidence for jet launching in AGN
Authors: Wilkins D. R.
Published: May 2016

Relativistically blurred reflection from the accretion disc provides a powerful probe of the extreme environments close to supermassive black holes; the inner regions of the accretion flow and the corona that produces the intense X‐ray continuum. Techniques by which the geometry and extent of the corona can be measured through the observed X‐ray spectrum are reviewed along with the evolution in the structure of the corona that is seen to accompany variations in the X‐ray luminosity both on long and short timescales. Detailed analyses of the narrow line Seyfert 1 galaxies Mrk 335 and 1H 0707–495, over observations with XMM‐Newton as well as Suzaku and NuSTAR spanning nearly a decade reveal that increases in the X‐ray luminosity coincide with an expansion of the corona to cover a larger area of the inner accretion disc. Underlying this long timescale variability lie more complex patterns of behaviour on short timescales. Flares in the X‐ray emission during a low flux state of Mrk 335 observed in 2013 and 2014 are found to mark a reconfiguration of the corona while there is evidence that the flares were caused by a vertical collimation and ejection of coronal material, reminiscent of an aborted jet‐launching event. Measurements of the corona and reflecting accretion disc are combined to infer the conditions on the inner disc that lead to the flaring event. (© 2016 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Bi2O3 Nanoparticle Clusters: Reversible Agglomeration Revealed by Imaging and Nano‐Impact Experiments
Authors: Bartlett Thomas R. , Sokolov Stanislav V. , Holter Jennifer , Young Neil , Compton Richard G.
Published: May 2016

Colloidal suspensions of Bi2O3 nanoparticles were studied in aqueous solution using imaging and electrochemical techniques. Nanoparticle tracking analysis revealed the particles to be agglomerated. In contrast, electrochemical detection via the nano‐impacts technique showed almost exclusive detection of monomeric nanoparticles. Comparison of the two techniques allows the conclusion to be drawn that the agglomeration/deagglomeration of the nanoparticles is reversible. A minimum rate constant for the deagglomeration process was estimated.
Adjacent Lone Pair (ALP) Effect: A Computational Approach for Its Origin
Authors: Zhang Huaiyu , Wu Wei , Ahmed Basil M. , Mezei Gellert , Mo Yirong
Published: May 2016

Invited for the cover of this issue are the teams led by Wei Wu (Xiamen University) and Yirong Mo (University of Western Michigan). The image depicts how π electron pairs (white figures) are more stable when the σ lone pairs (red figures) are separated. Read the full text of the article at 10.1002/chem.201600509.
ChemInform Abstract: LIFETIME OF OXYGEN (O2(1ΔG)) IN LIQUID WATER AS DETERMINED BY TIME‐RESOLVED INFRARED LUMINESCENCE MEASUREMENTS
Authors: RODGERS M. A. J. , SNOWDEN P. T.
Published: May 2016

Mit Hinweis auf die Annahme, daß viele photobiologische Wirkungen über den O2(1Δg)‐Zwischenzustand (Singulett‐O2) verlaufen, wurde dessen Lebensdauer in H2O zur 4.5 ps bestimmt.
ChemInform Abstract: TEMPERATURE DEPENDENCE OF THE LATTICE PARAMETERS AND THE THERMAL EXPANSION OF CDCR2X4 (X  S, SE)
Authors: KISTAIAH P. , MURTHY K. S. , RAO K. V. K.
Published: May 2016

Die Gitterparameter der beiden ferromagnetischen Spinelle wurden für 28‐685°C mittels Röntgenbeugung untersucht.
ChemInform Abstract: INFRARED SPECTROSCOPIC STUDY OF HYDROXYL GROUP ACID STRENGTH OF SILICA, ALUMINA, AND MAGNESIA MIXED OXIDES
Authors: LERCHER J. A. , NOLLER H.
Published: May 2016

Die Verschiebung der OH‐Banden nach Adsorption von Aceton wurde für die Mischoxide SiO2/MgO, SiO2/Al2O3 und Al2O3 /MgO sowie für deren reine Komponenten analysiert.
ChemInform Abstract: TUNGSTEN‐183 NMR OF HETEROPOLY AND ISOPOLYTUNGSTATES. EXPLANATIONS OF CHEMICAL SHIFTS AND BAND ASSIGNMENTS AND THEORETICAL CONSIDERATIONS
Authors: ACERETE R. , HAMMER C. F. , BAKER L. C. W.
Published: May 2016

183W‐NMR‐Spektren (chemische Verschiebungen) in D2O‐Lösungen wurden für die Iso‐ bzw. Heteropolywolframate (I)‐(XIII) aufgenommen.
ChemInform Abstract: ELECTRICAL RESISTIVITY AND CRYSTALLIZATION OF AMORPHOUS COPPER‐TITANIUM ALLOYS
Authors: HWANG C.‐H. , RYEOM Y.‐J. , CHO K.
Published: May 2016

An 7 amorphen Legierungen Cu100‐xTix (35 ⩽ x ⩽ 65) wurde der spezifische Widerstand bei 300 bis 1000 K untersucht.
ChemInform Abstract: THE ELECTRICAL RESISTIVITY OF LIQUID LITHIUM
Authors: CALAWAY W. F.
Published: May 2016

Der spezifische Widerstand wurde vom Schmelzpunkt bis zu 550°C gemessen.
ChemInform Abstract: RUTE2, A MACRASITE‐TYPE RUTHENIUM TELLURIDE
Authors: ZHAO H. , SCHILS H. W. , RAUB C. J.
Published: May 2016

Für RuTe2 wurde neben der Hochtemp.‐Modifikation vom Pyrit‐Typ die neue Tieftemp.‐Modifikation vom Markasit‐Typ röntgenographisch identifiziert.
ChemInform Abstract: TRANSFORMATION REACTIONS OF LANTHANUM‐NICKEL INTERMETALLICS (LANI AND LANI5) UNDER HYDROGEN
Authors: ELTON J. , OESTERREICHER H.
Published: May 2016

Die Untersuchung (bei Temp. bis zu 600°C und Hg‐Drücken bis zu 1000 at ) der thermodynamischen Stabilität von Phasen der Hydrid‐Bildung im La‐Ni‐System umfaßt LaH≈︁3 (f.c.c.), LaNiH≈︁3.5 (f.c.c.), LaNi13H7 (b.c.c.) und La7Ni3H21.7 (f.c.c.).
ChemInform Abstract: ELECTRONIC STRUCTURE AND SURFACE OXIDATION OF THE CALCIUM‐NICKEL (CANI5), YTTRIUM‐NICKEL (YNI5), LANTHANUM‐NICKEL (LANI5), AND THORIUM‐NICKEL (THNI5) HAUCKE COMPOUNDS
Authors: WEAVER J. H. , FRANCIOSI A. , PETERMAN D. J. , TAKESHITA T. , GSCHNEIDNER K. A. JUN.
Published: May 2016

Photoelektronen‐Spektren der isomorphen Haucke‐Verbindungen zeigen, daß die Valenzbänder nahezu identisch sind und durch derivierte Ni‐3d‐Bänder dominiert werden.
ChemInform Abstract: THE ACID‐CATALYZED DECOMPOSITION OF NITROAMINE (NH2NO2)
Authors: HUGHES M. N. , WIMBLEDON P. E.
Published: May 2016

Versuche mit 18O‐ markiertem H2O ergaben N2 18O, bei höherer Acidität (7.0 mol dm‐3 [HClO4]).
ChemInform Abstract: SURFACE COMPOSITION OF PROMOTED IRON CATALYSTS
Authors: SILVERMAN D. C. , BOUDART M.
Published: May 2016

Untersuchungen der Katalysatoren für NH3 ‐Synthese mittels Auger‐Elektronen‐Spektroskopie (AES) führten zur Entwicklung einer Gleichung für die Berechnung der Oberflächenkonzentrationen von Fe und Promotor aus Auger‐Daten (Vergleich mit Ergebnissen nach dem Verfahren der CO‐ und CO2‐Chemisorption).
ChemInform Abstract: HYDROGEN STORAGE IN LANTHANUM‐MAGNESIUM (LA2MG17) AND LANTHANUM‐MAGNESIUM‐NICKEL (LA2MG16NI)
Authors: KHRUSSANOVA M. , PEZAT M. , DARRIET B. , HAGENMUELLER P. +
Published: May 2016

Das bei der Hydrierung Agebildete LaH3 wirkt als Katalysator bei der Mg‐Hydrierung.
ChemInform Abstract: SYNTHESIS AND CHARACTERIZATION OF 1‐(CL2B)B5H8 AND 1‐(CL2B)‐2‐CLB5H7: A NEW BORON‐BORON Σ BOND
Authors: GAINES D. F. , HEPPERT J. A. , COONS D. E. , JORGENSON M. W.
Published: May 2016

Die zwei neuen 1‐(Dichloroboryl)pentaboran(9)‐Derivate, (I) und (II) die durch die Reaktion A bzw. B in Gegenwart von Friedel‐Crafts‐Katalysatoren ( ;z.B. wasserfreies FeCl3) hergestellt wurden, sind die ersten Beispiele von o‐ Bindung zwischen Boran‐Cluster‐Atomen und äußeren Trigonal‐Boratomen.
ChemInform Abstract: SUPEREXCHANGE IN BIS‐(μ‐HYDROXO)‐BRIDGED CHROMIUM(III) DIMERS. OPTICAL SPECTROSCOPIC STUDY OF SINGLY EXCITED 2EG4A2G PAIR STATES
Authors: DECURTINS S. , GUEDEL H. U. +
Published: May 2016

Die Verbindungen (I)‐(III) wurden durch Einkristall‐Absorptionsspektroskopie im Bereich der 4A2g 4A2g → 2Eg 4A2g‐Paar‐Anregungen untersucht.
ChemInform Abstract: PREPARATION AND PROPERTIES OF LANTHANUM TUNGSTATE AND STUDIES OF ITS ION‐EXCHANGE AND ELECTROCHEMICAL BEHAVIOR
Authors: RAWAT J. P. , KHAN R. A.
Published: May 2016

La‐Wolframat wurde aus wäßrigen 0.1 M‐Lösungen von La‐Nitrat und Na‐Wolframat (mit La:W‐Mischungsverhältnissen 1:1, 1 : 2 und 2 : 1) in Gegenwart von Essigsäure (Eisessig) hergestellt.
ChemInform Abstract: SYNTHESIS AND SPECTROSCOPIC PROPERTIES OF A NEW CONDENSED PHOSPHITE OLIGOMERIC PLATINUM(II) COMPLEX
Authors: DICKSON M. K. , FORDYCE W. A. , APPEL D. M. , ALEXANDER K. , STEIN P. , ROUNDHILL D. M.
Published: May 2016

Bei der Erhitzung von K‐Tetrachloroplatinat (II) mit H3PO3 auf 170°C bildet sich ein dunkelgrünes Pulver, das nur in wäßrigen Medien löslich ist und sich in wenigen h zuerst zu K4[Pt2(pop)4] und dann zu Pt{[OP(OH)2]4 · H2} zersetzt.
ChemInform Abstract: ELECTROCHEMISTRY OF PERFLUOROTETRACYCLOBUTA‐1,3,5,7‐CYCLOOCTATETRAENE, A POWERFUL NEUTRAL ORGANIC OXIDANT
Authors: BRITTON W. E. , FERRARIS J. P. , SOULEN R. L.
Published: May 2016

Das cyclische Voltammogramm der Titelverbindung (I) zeigt Einelektronen‐Reduktionsstufen bei 0.79 und 0.14 V (gegen die SCE).
ChemInform Abstract: POLYFLUORO‐2‐ACYLIMINOPROPANES IN DIELS‐ALDER REACTIONS
Authors: KRYUKOV L. N. , KRYUKOVA L. YU. , KOLOMIETS A. F.
Published: May 2016

Das Reaktionsverhalten der Titelverbindungen (I) gegenüber Dienen und Heterodienen bzw. Heteroeninen wird untersucht.
ChemInform Abstract: KINETIC DETERMINATIONS BY DIFFERENTIAL SCANNING MICROCALORIMETRY. XIV. THERMOLYSIS OF BENZOYL PEROXIDE AND SOME P,P′‐DISUBSTITUTED DERIVATIVES IN PROPRIOPHENONE
Authors: BOP J. P. , MAILLARD B. , FILLIATRE C. , VILLENAVE J. J.
Published: May 2016

In Propiophenon zersetzen sich die Peroxide (Ib) ausschließlich durch spontane Homolyse der O‐O‐Bindung, das Peroxid (Ia) sowohl spontan wie radikalinduziert, und das Peroxid (Ic) spontan und autokatalytisch.
ChemInform Abstract: CLEAVAGE OF THE 1,3‐DITHIANE PROTECTIVE GROUP
Authors: PRATO M. , QUINTILY U. , SCORRANO G. , STURARO A.
Published: May 2016

Die Spaltung von 1,3‐Dithianen (I) zu Carbonylverbindungen (II) gelingt oxidativ mit überschüssigem Dimethylsulfoxid und Salzsäure in Dioxan in guten Ausbeuten.
ChemInform Abstract: STUDIES OF AMINES AND AMMONIUM COMPOUNDS. CLXIII. STEVENS AND SOMMELET REARRANGEMENTS OF AMMONIUM SALTS CONTAINING A CYANOMETHYL GROUP
Authors: KOCHARYAN S. T. , OGANDZHANYAN S. M. , RAZINA T. L. , BABAYAN A. T.
Published: May 2016

Die Ammoniumchloride (I), (III) und (V), die neben einer Cyanmethylgruppe noch über eine Allyl‐, Furfuryl‐ bzw. Benzylgruppe verfügen, werden durch Basen in intramolekularer Sommelet‐ bzw. Stevens‐Umlagerung in die Dialkylaminosäurenitrile (II), (IV), (VI) und (VII) übergeführt.
ChemInform Abstract: BECKMANN REARRANGEMENT OF OXIME SULFONATES BY GRIGNARD REAGENTS
Authors: HATTORI K. , MARUOKA K. , YAMAMOTO H.
Published: May 2016

Aus den Oxim‐sulfonaten (I) erhält man mit den Grignardverbindungen (II) die Imine (III) die mit Diisobutylaluminiumhydrid zu (IV) hydriert oder mit weiteren Grignardverbindungen zu Aminen (V) umgesetzt werden.
ChemInform Abstract: PHOTOREACTIVITY OF α,β‐UNSATURATED CARBONYL COMPOUNDS. COMPETITIVE 2‐CYCLOHEXENONE DIMERIZATION AND ADDUCT FORMATION WITH TRIETHYLAMINE
Authors: PIENTA M. J. , MCKIMMEY J. E.
Published: May 2016

Bei der Photolyse von 2‐Cyclohexenon (I) in Gegenwart unterschiedlicher Mengen an Et3N (rein oder mit Acetonitril als Lösungsmittel) entstehen je nach Reaktionsbedingungen in unterschiedlichen Mengenverhältnissen Cyclohexanon (II), Dimere wie (III) (nicht getrennt) und das substituierte Cyclohexanon (IV) (Diastereomerengemisch).
ChemInform Abstract: PHOTOREACTIVITY OF CARBONIC ACID DERIVATIVES IN REDUCTIVE MEDIUM
Authors: DEMBELE V. A. , DESHAYES H. , PETE J.‐P.
Published: May 2016

Aus den Stereoid‐carbaminaten (I) erhält man photolytisch in Gegenwart von HMPA/Wasser die Reaktionsprodukte (II)‐(VII).
ChemInform Abstract: A PHOTOCHEMICAL RING CONTRACTION OF AN IMINO LACTAM
Authors: KLEYER D. L. , KOCH T. H.
Published: May 2016

Brenztraubensäureethylester (I) reagiert mit dem Dimethyl‐ethylendiamin (II) im wesentlichen zum isolierbaren Tetrahydro‐2‐pyrazinon (IV) neben dem Isomeren (III).
ChemInform Abstract: ELECTRON PARAMAGNETIC RESONANCE STUDIES OF THERMALLY PRODUCED RADICALS IN PHENYLACETYLENE
Authors: SIPE H. J. JUN. , KISPERT L. D. , HWANG J. S. , TSONIS C. P.
Published: May 2016

Während bei der thermischen Polymerisierung von Phenylacetylen durch EPR ein intermediäres, Phenyl‐substituiertes Polyenyl‐π‐elektronradikal beobachtet werden kann, finden unter gleichen Bedingungen mit 1‐Phenyl‐propin weder Polymerisierung noch Radikalbildung statt.
ChemInform Abstract: PINACOLIC COUPLING OF AROMATIC ALDEHYDES AND KETONES PROMOTED BY AQUEOUS TITANIUM TRICHLORIDE IN BASIC MEDIA
Authors: CLERICI A. , PORTA O.
Published: May 2016

Aus den Verbindungen (I) erhält man mit Ti(III) und Alkali Gemische der Pinakole (II) neben den Alkoholen (III).
ChemInform Abstract: ACTIVE HETEROMETHYLENE COMPOUNDS. 2. A NEW SYNTHESIS OF N‐(HALOMETHYL)ACYLAMIDES
Authors: CHUPP J. P. , LESCHINSKY K. L. , MISCHKE D. A.
Published: May 2016

Aus den Amiden (I) erhält man mit den Chlormethylethern (II) die Substitutionsprodukte (III), die mit Halogenwasserstoffsäuren oder Thionylchlorid /BF3 zu den Halogenmethyl‐amiden (IV) führen.
ChemInform Abstract: MOLYBDENUM CATALYSTS FOR ALLYLIC ALKYLATION
Authors: TROST B. M. , LAUTENS M.
Published: May 2016

Die Regioselektivität der durch einen Mo‐Komplex katalysierten Reaktion eines Allylacetats.
ChemInform Abstract: REGIOSPECIFIC ARYLATION BY ACID/BASE CONTROLLED REACTIONS OF TETRAPHENYLBISMUTH ESTERS
Authors: BARTON D. H. R. , CHARPIOT B. , MOTHERWELL W. B.
Published: May 2016

Aus Pentaphenylbismut (I) entstehen mit Säuren die Substitutionsprodukte (II), die zur Phenylierung von 2‐Naphthol (III), Cyclohexanon‐2‐carbonester (VIa) und Dimedon (VIIIa) herangezogen werden.
ChemInform Abstract: A SHORT SYNTHESIS OF THE 4‐DEMETHOXY‐11‐DEOXYANTHRACYCLINE SKELETON. REGIOSPECIFIC ENOLATE C‐CARBOXYLATION WITH CARBON OXYSULFIDE
Authors: VEDEJS E. , NADER B.
Published: May 2016

Aus 2‐Chlormethyl‐1 ,4‐dimethoxy‐naphthalin (I) erhält man nach Grignardreaktion, Umsetzung mit Trimethylchlorsilan und Metallierung das Derivat (II), aus dem mit Cyclohexenon (III) die Produkte (IV) oder (Va) bzw. mit Chlorkohlensäureester das Enolcarbonat (Vb) erhalten werden.
ChemInform Abstract: REACTIONS OF CYCLIC ANHYDRIDES. PART VI. TRANSESTERIFICATION OF MALEANILIC AND FUMARANILIC ACIDS WITH PHOSPHORUS PENTOXIDE‐ALKANOL
Authors: WAGH S. B. , BALASUBRAMANIYAN P. , BALASUBRAMANIYAN V.
Published: May 2016

Die Verwendung von P2O5/Alkohol (II) als geeignetes Veresterungsmittel wird anhand der Bildung der Ester (III) (E‐ und Z‐Isomere) aus den entsprechenden Carbonsäuren (I) aufgezeigt.
ChemInform Abstract: HYDROGEN BONDING IN ALCOHOLS: ITS EFFECT ON THE CARBENE INSERTION REACTION
Authors: GRILLER D. , LIU M. T. H. , SCAIANO J. C.
Published: May 2016

Kinetische Untersuchungen zeigen, daß die Reaktionen der durch Blitzlichtphotolyse aus entsprechenden Diazirinen erzeugten Carbene, Phenyl‐ und p‐Anisylchlorocarben, mit Methanol oder tert.‐Butanol nicht Prozesse 1. Ordnung in bezug auf die Volumenkonzentration dieser Substrate sind.
ChemInform Abstract: FORMATION AND ENHANCED STABILITY OF FLUOROALKYL BILAYER MEMBRANES
Authors: KUNITAKE T. , OKAHATA Y. , YASUNAMI S.
Published: May 2016

Untersuchungen zeigen, daß doppelkettige Fluoralkyl‐Amphiphile wie (I) und (II) beim Dispergie‐ ren in Wasser stabile zweischichtige Membrane bilden.
ChemInform Abstract: SYNTHESIS AND SOME REACTIONS OF 1,1,4,4‐TETRACHLORO‐1‐BUTEN‐3‐ONE
Authors: OL'DEKOP YU. A. , KABERDIN R. V. , BUSLOVSKAYA E. E.
Published: May 2016

Durch Behandeln des Diens (I) mit rauchender HNO3 wird die schwer zugängliche Titelverbindung (II) erhalten, deren Reaktionsverhalten gegenüber Aminen untersucht wird.
ChemInform Abstract: DERIVATIVES OF 3‐CHLORO‐2,2‐BIS(CHLOROMETHYL)PROPANOIC ACID AND THEIR THERMOCYCLIZATION
Authors: GAFAROV A. N. , KHARASOVA T. S. , MINABUTDINOVA R. N.
Published: May 2016

Die Titelverbindung (I) wird über das Chlorid (II) in die bisher unbekannten Derivate (III)‐(VI) übergeführt.
ChemInform Abstract: SYNTHESIS OF 2,6‐DIMETHYL‐1,6‐HEPTADIEN‐3‐OL ACETATE, A PROBABLE BIOGENETIC PRECURSOR OF THE PHEROMONE, 2,6‐DIMETHYL‐1,5‐HEPTADIEN‐3‐OL ACETATE
Authors: SHANKARAN K. , RAO A. S.
Published: May 2016

Die Hydroxysäure (Ia) wird nach Acetylierung zu (Ib) durch oxidative Decarboxylierung in das Titelacetat (IIb) übergeführt.
ChemInform Abstract: SYNTHESIS AND POLYMERIZATION OF CHLOROFLUOROALLYLIC, ‐VINYLIC, AND ‐ACRYLIC MONOMERS
Authors: BOUTEVIN B. , PIETRASANTA Y. , SIDERIS A.
Published: May 2016

Auf den im Formelschema skizzierten Wegen werden die ungesättigten, Halogen enthaltenden Carbonsäurecster (III), (VI) und (IX) hergestellt.
ChemInform Abstract: REACTION OF SULFUR CHLORIDES WITH POLYFLUOROALKENES
Authors: IL'IN G. F. , KOLOMIETS A. F. , SOKOL'SKII G. A.
Published: May 2016

Tetrafluorethylen (I) und die Trifluorethylene (IV) und (VI) reagieren mit Dischwefeldichlorid (II) zu Disulfiden wie (III), (V) bzw. (VII).
ChemInform Abstract: NEW SYNTHESIS OF KETENE THIOACETALS, VINYL SULFIDES, AND THEIR SELENO ANALOGS
Authors: DENIS J. N. , KRIEF A.
Published: May 2016

Bei der Behandlung mit Diphosphortetraiodid oder mit Phosphortriiodid erhält man aus den in bekannter Weise glatt zugänglichen Orthothio‐ bzw. Orthoseleno‐estern (Ia) und (Ib) die entsprechenden Olefine (II) und aus den Bis‐Derivaten (III) die Olefine (IV).
ChemInform Abstract: PREPARATION OF 2‐CHLORO‐3‐(PENTAFLUOROSULFUR)TETRAFLUOROPROPYLENE, AND ITS USE IN TELOMERIZATION REACTIONS
Authors: WITUCKI E. F.
Published: May 2016

Das durch Anlagerung von Chlorschwefelpentafluorid (II) an Tetrafluorallen (I) zugängliche Addukt (III) läßt sich photochemisch in Gegenwart von Trifluoriodmethan zu (V) telomerisieren.
ChemInform Abstract: Synthese der 2,3‐Dicyclopropyl‐2‐cyclopropen‐1‐carbonsäure und ihres Ethylesters.
Authors: SUVOROVA G. N. , KOMENDANTOV M. I.
Published: May 2016

1,1‐Dicyclopropylethan (I) wird in das Chlorderivat (II) übergeführt, aus dem nach Literaturverfahren Dicyclopropylethin (III) erhalten und mit dem Diazoester (IV) umgesetzt wird.
ChemInform Abstract: RING OPENING REACTIONS OF ELECTROPHILIC CYCLOPROPANES
Authors: DIETER R. K. , POUNDS S.
Published: May 2016

Elektrophile Cyclopropane wie (I) oder (VI) werden durch Behandlung mit Trimethylchlorsilan und Natriumhalogenid oder ‐thiophenolat nach Hydrolyse der intermediär gebildeten Enolsilylether zu den 3‐substituierten Propyhmethyl‐ketonen (III) bzw. (VII) und (VIII) gespalten.
ChemInform Abstract: SELECTIVE CARBON‐CARBON BOND FORMATION VIA TRANSITION METAL CATALYSIS. 29. A HIGHLY REGIO‐ AND STEREOSPECIFIC PALLADIUM‐CATALYZED ALLYLATION OF ENOLATES DERIVED FROM KETONES
Authors: NEGISHI E. , MATSUSHITA H. , CHATTERJEE S. , JOHN R. A.
Published: May 2016

Aus Cyclohexanon (I) entsteht mit Kalium‐bis‐trimethylsilylamid oder Kaliumhydrid und Triethylbor das Enolat (II), das mit den Allylchloriden (III) oder (V) in Gegenwart von Pd‐Katalysatoren zu den ungesättigten Ketonen (IV) bzw. (VI) reagiert.
ChemInform Abstract: ATTEMPTS TO PREPARE A PYRAMIDAL CARBOCATION WITH AN APICAL FLUORINE SUBSTITUENT
Authors: HART H. , STEIN D. L.
Published: May 2016

Trimethyl‐norbornadien (I) reagiert mit Difluorcarben (II) zu den Addukten (IIIa) und (IIIb), die jedoch nicht als Vorstufe zu (IV) eingesetzt werden können.
ChemInform Abstract: DIRECT EVIDENCE FOR α,α‐DIFLUOROCARBOCATIONS IN THE REACTIONS OF CHLOROACETIC ACIDS WITH SULFUR TETRAFLUORIDE
Authors: WIELGAT J. , DOMAGALA Z.
Published: May 2016

Die Umsetzung der Chloressigsäuren (I) mit Schwefeltetrafluorid (III) unter Druck in Gegenwart von Aromaten (II) führt zu Gemischen aus den Benzotrifluoriden (IV), den halogenierten Ethylaromaten (V) und den Ketonen (VI).
ChemInform Abstract: Preparation of 1,1‐Dialkoxy‐2‐alkanones.
Authors: VERHE R. , COURTHEYN D. , DE KIMPE N. , DE BUYCK L. , SCHAMP N.
Published: May 2016

Die Umsetzung von α,α‐Dichloraldehyden (I) mit Natriumalkoholaten führt zu einem nicht trennbaren Gemisch der α,α‐Dialkoxyketone (II) und der α,α‐Dialkoxyaldehyde (III).
ChemInform Abstract: REAGENTS AND SYNTHETIC METHODS. 14. A FACILE SYNTHESIS OF CARBOXYLIC ACID BROMIDES AND ESTERS UNDER NEUTRAL CONDITIONS VIA REACTION OF THE TRIMETHYLSILYL ESTERS WITH TRIPHENYLPHOSPHINE DIBROMIDE
Authors: AIZPURUA J. M. , PALOMO C.
Published: May 2016

Carbonsäuren (I) werden durch Umsetzung mit Triphenylphosphin‐dibromid (II) direkt oder über ihre Silylester (IV) rasch und schonend in Säurebromide (III) übergeführt.
ChemInform Abstract: CATALYTIC DOUBLE CARBONYLATION OF ORGANOHALOGEN COMPOUNDS PROMOTED BY PALLADIUM COMPLEXES
Authors: OZAWA F. , SOYAMA H. , YAMAMOTO T. , YAMAMOTO A.
Published: May 2016

Aus den Alkylhalogeniden (I) erhält man bei der Carbonylierung in Gegenwart von Aminen (II) und Katalysatoren die α‐Keto‐amide (III) sowie die Amide (IV).
ChemInform Abstract: STUDIES ON SYNTHESIS AND ANTHELMINTIC ACTIVITY OF N‐(SUBSTITUTED PHENOXYACETAMIDO)PHTHALIMIDES
Authors: SHUKLA J. S. , AGARWAL K. , RASTOGI R.
Published: May 2016

Die Phthalimide (III) werden durch Reaktion von Phthalsäureanhydrid (I) mit Phenoxyacetylhydrazinen (II) hergestellt und auf ihre Wirkung gegen die Bandwurmart Hymenolepis nana an Ratten geprüft.
ChemInform Abstract: REACTION OF CYANOGEN BROMIDE WITH O‐HYDROXYBENZALANILINES, P‐HYDROXYBENZALANILINES AND VANILLIN SCHIFF BASES
Authors: KUMAR S. , RAI M. , KRISHAN K. , SINGH A.
Published: May 2016

Cyanbromid reagiert mit den Schiffschen Basen (I) zu den Cyanderivaten (II).
ChemInform Abstract: TOSYLATE AND MESYLATE ANIONS AS NUCLEOPHILES IN THE CONJUGATED ELECTROPHILIC ADDITION OF HALOGENS TO OLEFINS
Authors: ZEFIROV N. S. , KOZ'MIN A. S. , DAN'KOV YU. V. , ZHDANKIN V. V. , KIRIN V. N.
Published: May 2016

Bei der Halogenierung der Alkene (I) in Gegenwart der Tetrabutylammoniumsulfonate (II) entstehen neben den Produkten der Halogenaddition (III) (keine Ausb.‐Angabe) die β‐halogensubstituierten Tosylate bzw. Mesylate (IV).
ChemInform Abstract: SYNTHESIS OF Ω‐(4‐AMINOPHENYLSULFONAMIDO)ALKYL DISULFIDES AND THIOSULFATES AND THEIR ACTIVITY AGAINST DIHYDROPTEROATE SYNTHETASE FROM SULFANILAMIDE‐RESISTANT NEISSERIA GONORRHOEAE
Authors: FOYE W. O. , KAUFFMAN J. M. , SUTTIMOOL W.
Published: May 2016

Auf den beiden im Formelschema skizzierten Wegen werden die Disulfide (V) und die Sulfonylaminoalkylthiosulfate (VIII) hergestellt.
ChemInform Abstract: CONDENSATION OF 1,2‐DIBROMOTETRAFLUOROETHANE WITH VARIOUS POTASSIUM THIOPHENOXIDES AND PHENOXIDES
Authors: RICO I. , WAKSELMAN C.
Published: May 2016

Die Umsetzung der Thiophenole (I) mit Dibromtetrafluorethan (II) führt in einem Zweiphasensystem zu den Phenylthioethern (III) und (IV).
ChemInform Abstract: A FACILE ONE‐STEP SYNTHESIS OF METHYL β‐OXODITHIOCARBOXYLATES
Authors: SINGH G. , BHATTACHARJEE S. S. , ILA H. , JUNJAPPA H.
Published: May 2016

Ketone (I) lassen sich mit Dimethyl‐trithiocarbonat (II) in Gegenwart von Natriumhydrid in mäßigen Ausbeuten zu β‐Oxo‐dithiocarbonsäureestern (III) kondensieren.
ChemInform Abstract: POTENTIAL ANTITHYROID AGENTS. PART II: SYNTHETIC AND PHARMACOLOGICAL STUDIES ON SOME N‐ARYL‐N′‐2(BENZIMIDAZOLYL)THIOCARBAMIDES AND N‐ARYL‐N′‐BENZENESULFONYLTHIOCARBAMIDES
Authors: UPADHYAYA J. S. , SRIVASTAVA P. K.
Published: May 2016

Die Thioharnstoffe (III) und (VI) werden durch Umsetzung der Isothiocyanate (II) bzw. (IV) mit aromatischen Aminen (I) bzw. (V) hergestellt und auf antithyreoide Wirkung geprüft.
ChemInform Abstract: SYNTHESIS OF (E)‐ AND (Z)‐1,2‐BIS(PHENYLSULFONYL)STILBENES
Authors: PEERAN S. G. , KHAN T. H. , VENKATESWARULU R.
Published: May 2016

Die Bromierung der Phenylthiostilbene (I) bzw. (II) ergibt ein Gemisch der Isomeren (III) und (IV).
ChemInform Abstract: SYNTHESIS AND PROPERTIES OF 1‐ARYL‐3‐OXO‐1‐CYCLOPENTANECARBOXYLIC ACIDS AND THEIR DERIVATIVES
Authors: MNDZHOYAN SH. L. , MARTIROSYAN A. O. , OVAKIMYAN A. R.
Published: May 2016

Die Benzylcyanide (I) werden mit Chloressigsäure‐tert.‐butylester nach Literaturverfahren zu den Monoestern (II) kondensiert.
ChemInform Abstract: CYCLOPHANES. PART 18. ACID‐CATALYZED METHYL MIGRATION IN (2.2)PARACYCLOPHANES
Authors: KLEINSCHROTH J. , EL‐TAMANY S. , HOPF H. , BRUHIN J.
Published: May 2016

Bei der Behandlung mit TiCl4 und Säuren wie HCl erfolgt in methylierten [2.2]Paracyclophanen z.Tl. eine Wanderung von Methylgruppen, die in ihrem Reaktionsablauf ausführlich untersucht wird.
ChemInform Abstract: NEW VERSATILE C5 BUILDING BLOCKS FROM ETHYLENE AND TETRACHLOROCYCLOPROPENE
Authors: LIESE T. , SPLETTSTOESSER G. + , DE MEIJERE A.
Published: May 2016

Tetrachlorcyclopropen (I) reagiert mit den beiden Olefinen (II) in bekannter Weise unter Umlagerung zu den Trichlorvinyl‐chlor‐cyclopropanen (III).
ChemInform Abstract: REACTION OF NAPHTHALIC ANHYDRIDE AND ITS SUBSTITUTED DERIVATIVES WITH ACID AMIDES
Authors: PLAKIDIN VAL. L. , VOSTROVA V. N.
Published: May 2016

Die Umsetzung der Naphthalsäureanhydride (I) mit Formamid oder mit Acetamid (II) ergibt die Naphthalsäureimide (III) in hohen Ausbeuten.
ChemInform Abstract: A NEW ROUTE TO BIPHENYLENE VIA VOLLHARDT CYCLIZATION FROM O‐BIS((TRIMETHYLSILYL)ETHYNYL)BENZENE
Authors: GESING E. R. F.
Published: May 2016

Aus 1,2‐Bis‐trimethylsilylethinyl‐benzol (I) erhält man mit kata‐ lytischen Mengen des Co‐Katalysators (II) das Biphenylen (III).
ChemInform Abstract: 3A,6,7,7A‐TETRAHYDRO‐1H‐INDENE‐4‐CARBOXYLIC ACID
Authors: MIYANO M. , STEALEY M. A.
Published: May 2016

Käufliche "5‐Norbornen‐2‐ acrylsäure (I)" ergibt bei der Racemattrennung mit α‐Methylbenzylamin die Hydroindencarbonsäure‐Enantiomeren (II),die bereits im Ausgangsmaterial enthalten sind.
ChemInform Abstract: REPLACEMENT OF NITRO GROUPS BY HYDROXY GROUPS IN A SERIES OF NITROFLUORENONES
Authors: ANDRIEVSKII A. M. , GREKHOVA N. G. , ANDRONOVA N. A. , SHIFRINA R. R. , ALEKSANDROV V. N. , DYUMAEV K. M.
Published: May 2016

Das Tetranitrofluorenon (I) wird bei längerem Aufbewahren in HMPA bei Raumtemp. durch Feuchtigkeitsspuren in das 4‐Hydroxyderivat (II) umgewandelt.
ChemInform Abstract: POLYNUCLEAR AROMATIC HYDROCARBONS. PART XXV. SYNTHESIS OF 8‐METHYLBENZO(J)FLUORANTHENE
Authors: SHARMA K. S. , TANEJA K. L. , MUKHERJI S. M.
Published: May 2016

Friedel‐Crafts‐Kondensation des Ketons (I) mit Benzol (II) gibt das Phenylderivat (III), das zum Alkohol (IV) reduziert wird.
ChemInform Abstract: THE ROLE OF THE TRIMETHYLSILYL GROUP IN THE HIGHLY STEREOSELECTIVE EPOXIDATION OF ALLYLIC ALCOHOLS
Authors: TOMIOKA H. , SUZUKI T. , OSHIMA K. , NOZAKI H.
Published: May 2016

Der silylierte Allylalkohol (I) wird zu dem Epoxid (II) umgesetzt und dann mit Fluorid‐Ionen zu (III) desilyliert.
ChemInform Abstract: REACTION OF NITROSOPERFLUORO‐TERT‐BUTANE WITH TETRAFLUOROETHYLENE
Authors: UKHAROV O. V. , SIZOV YU. A. , KNUNYANTS I. L.
Published: May 2016

Das perfluorierte tert.‐Nitrosobutan (I) reagiert mit Tetrafluorethylen (II) unter Einschiebung eines Tetrafluorethylen‐Moleküls in die C‐N‐Bindung zum Oxazetidin (III).
ChemInform Abstract: HOMOLYTIC CARBOCYCLIZATION BY USE OF A HETEROGENEOUS SUPPORTED ORGANOTIN CATALYST. A NEW SYNTHETIC ROUTE TO 2‐ALKOXYTETRAHYDROFURANS AND Γ‐BUTYROLACTONES
Authors: UENO Y. , CHINO K. , WATANABE M. , MORIYA O. , OKAWARA M.
Published: May 2016

Unter den gewählten Reaktionsbedingungen erhält man aus den Bromacetalen (I) die Tetrahydrofurane (II), welche in die γ‐Lactone (III) übergeführt werden.
ChemInform Abstract: A SHORT STEREOSELECTIVE SYNTHESIS OF (.+‐.)‐LITSENOLIDES C1 AND C2
Authors: BARBIER P. , BENEZRA C.
Published: May 2016

Die Synthese von Litsenolid C1 (I) und Litsenolid C2 (II) wird beschrieben.
ChemInform Abstract: THE SERENDIPITOUS SYNTHESIS OF AN OXABICYCLO(3.2.0)HEPTADIENE
Authors: GOLDSTEIN M. J. , JOHNSON M. W. , TAYLOR R. T.
Published: May 2016

Aus dem bicyclischen Dibrom‐keton (I) erhält man mit Tetraethyl‐ammoniumcyanid das Umlagerungsprodukt (II).
ChemInform Abstract: α‐(PHENYLTHIO)‐β‐VINYLBUTENOLIDE, A NOVEL ANNULATING REAGENT FOR THE SYNTHESIS OF 4‐OXYGENATED PERHYDRO‐2‐OXO‐1‐BENZOFURAN DERIVATIVES
Authors: KIDO F. , NODA Y. , YOSHIKOSHI A.
Published: May 2016

Das Titelreagenz (II) (dargestellt durch Oxidation des Sulfids (I) zum Sulfoxid und anschließende eliminierende Pummerer‐Um1agerung) ermöglicht die Überführung von Carbonylverbindungen in Derivate des Perhydrobenzofurans, wie z.B. der Verbindungen (III), (VI) und (IX) in die Tetrahydrobenzofuranone (IV), (VII) und (X).
ChemInform Abstract: GENERAL ROUTE FOR THE FACILE TRANSFORMATION OF ORTHO‐SUBSTITUTED LITHIOBITHIENYLS INTO AMINO DERIVATIVES
Authors: SPAGNOLO P. , ZANIRATO P. , GRONOWITZ S.
Published: May 2016

Die nach bekannten Verfahren zugänglichen Bithienyl‐halogenide (I) ergeben über die Li‐Derivate (II) mit Tosylazid die Azide (III), die zu den Aminen (IV) reduziert werden.
ChemInform Abstract: CRISS‐CROSS ADDITIONS OF ALDAZINES ON N‐ARYLMALEIMIDES: SYNTHESIS OF 2,5,9,12‐TETRASUBSTITUTED 1,5,8,12‐TETRAAZATETRACYCLO(6.6.0.03,7.010,14)TETRADECANE‐4,6,11,13‐TETRAONES
Authors: ABDOU S. E. , HABASHY A. , AZIZ G. , KHALIFA F.
Published: May 2016

Durch dipolare Cycloaddition der Aldazine (II) an die Imide (I) erhält man die Addukte (III).
ChemInform Abstract: HETEROCYCLIC SYNTHESIS WITH 4‐4‐BIS(TRIFLUOROMETHYL)‐1,3‐DIAZABUTA‐1,3‐DIENES. II. SPECTROSCOPIC STUDY OF ISONITRILE AND DIMETHOXYCARBENE ADDUCTS
Authors: BURGER K. , WASSMUTH U. , PENNINGER S.
Published: May 2016

Aus den Benzamidinen (I) erhält man mit Hexafluoraceton (II) die Diazabutadiene (III), die mit Isonitrilen (IV) zu den Heterocyclen (V) reagieren.