bluuebunny/crossref_metadata_2025_split huggingface dataset:
Hygroscopicity of aerosol particles and CCN activity of nearly hydrophobic particles in the urban atmosphere over Japan during summer
Authors: Ogawa Shuhei , Setoguchi Yoshitaka , Kawana Kaori , Nakayama Tomoki , Ikeda Yuka , Sawada Yuuki , Matsumi Yutaka , Mochida Michihiro 
Published: April 2016

AbstractWe investigated the hygroscopicity of 150 nm particles and the number‐size distributions and the cloud condensation nuclei (CCN) activity of nearly hydrophobic particles in aerosols over Nagoya, Japan, during summer. We analyzed the correlations between the number concentrations of particles in specific hygroscopic growth factor (g) ranges and the mass concentrations of chemical components. This analysis suggests the association of nearly hydrophobic particles with hydrocarbon‐like organic aerosol, elemental carbon and semivolatile oxygenated organic aerosol (SV‐OOA), that of less hygroscopic particles with SV‐OOA and nitrate and that of more hygroscopic particles with low‐volatile oxygenated organic aerosol (LV‐OOA) and sulfate. The hygroscopicity parameter (κ) of organics was derived based on the g distributions and chemical composition of 150 nm particles. The κ of the organics correlated positively with the fraction of the total organic mass spectral signal at m/z 44 and the volume fraction of the LV‐OOA to the organics, indicating that organics with highly oxygenated structures including carboxylic acid groups contribute to the water uptake. The number‐size distributions of the nearly hydrophobic particles with g around 1.0 and 1.1 correlated with the mass concentrations of chemical components. The results show that the chemical composition of the particles with g around 1.0 was different between the Aitken mode and the accumulation mode size ranges. An analysis for a parameter Fmax of the curves fitted to the CCN efficiency spectra of the particles with g around 1.0 suggests that the coating by organics associated with SV‐OOA elevated the CCN activity of these particles.
Is climate sensitivity related to dynamical sensitivity?
Authors: Grise Kevin M. , Polvani Lorenzo M. 
Published: April 2016

AbstractThe atmospheric response to increasing CO2 concentrations is often described in terms of the equilibrium climate sensitivity (ECS). Yet the response to CO2 forcing in global climate models is not limited to an increase in global‐mean surface temperature: for example, the midlatitude jets shift poleward, the Hadley circulation expands, and the subtropical dry zones are altered. These changes, which are referred to here as “dynamical sensitivity,” may be more important in practice than the global‐mean surface temperature. This study examines to what degree the intermodel spread in the dynamical sensitivity of 23 Coupled Model Intercomparison Project phase 5 (CMIP5) models is captured by ECS. In the Southern Hemisphere, intermodel differences in the value of ECS explain ~60% of the intermodel variance in the annual‐mean Hadley cell expansion but just ~20% of the variance in the annual‐mean midlatitude jet response. In the Northern Hemisphere, models with larger values of ECS significantly expand the Hadley circulation more during winter months but contract the Hadley circulation more during summer months. Intermodel differences in ECS provide little significant information about the behavior of the Northern Hemisphere subtropical dry zones or midlatitude jets. The components of dynamical sensitivity correlated with ECS appear to be driven largely by increasing sea surface temperatures, whereas the components of dynamical sensitivity independent of ECS are related in part to changes in surface temperature gradients. These results suggest that efforts to narrow the spread in dynamical sensitivity across global climate models must also consider factors that are independent of global‐mean surface temperature.
Lead in the western South China Sea: Evidence of atmospheric deposition and upwelling
Authors: Chen Mengli , Goodkin Nathalie F. , Boyle Edward A. , Switzer Adam D. , Bolton Annette 
Published: April 2016

AbstractIn recent decades, rapid industrial developments have increased lead (Pb) inputs to the South China Sea. To quantify the increasing variability, we investigated 170 years of skeletal Pb and Pb isotopes from an offshore, central Vietnamese coral. The Pb/Ca in the coral was 10–16 nmol/mol before the mid‐1950s and increased to more than 30 nmol/mol by 2000. While the regional phaseout of leaded petrol commenced in 2000, coral Pb/Ca continued increasing until 2004, possibly due to regional upwelling and the transport of previously emitted Pb from tropical Pacific waters. The 206Pb/207Pb ratio in the coral was 1.191–1.195 before mid‐1950s, suggesting natural sources. Since then, the ratio decreased, reaching ~1.165 in 2004. Lead isotopes show high linearity between natural and Chinese emitted Pb, with the latter contributing ~40%~60% of the skeletal Pb after 2000.
Postsynthetische Entkopplung oberflächensynthetisierter kovalenter Nanostrukturen von Ag(111)
Authors: Rastgoo‐Lahrood Atena , Björk Jonas , Lischka Matthias , Eichhorn Johanna , Kloft Stephan , Fritton Massimo , Strunskus Thomas , Samanta Debabrata , Schmittel Michael , Heckl Wolfgang M. , Lackinger Markus 
Published: April 2016

AbstractDie Oberflächensynthese von organischen Nanoschichten mithilfe reaktiver Metalloberflächen führt zu stark adsorbierten organischen Nanostrukturen, deren intrinsische Eigenschaften jedoch durch die starke Bindung zur Oberfläche verdeckt werden. Daher ist die Reduzierung der elektronischen Kopplung zwischen den organischen Netzwerken und den üblicherweise verwendeten Metalloberflächen ein erster wichtiger Schritt zur Charakterisierung der wahren Eigenschaften. Wir zeigen, dass postsynthetische Iodexposition zur Interkalation einer Iodmonolage zwischen kovalenten Polyphenylen‐Netzwerken und Ag(111)‐Oberflächen führt. Die experimentell beobachteten Veränderungen zwischen oberflächengebundenen und abgelösten Nanolagen werden anhand von DFT‐Simulationen nachvollzogen. Die erzielten Erkenntnisse zeigen, dass Iodinterkalation zu einem Material führt, dessen geometrische und elektronische Eigenschaften denen freistehender Netzwerke sehr ähnlich sind.
Base–Metal‐Catalyzed Regiodivergent Alkene Hydrosilylations
Authors: Du Xiaoyong , Zhang Yanlu , Peng Dongjie , Huang Zheng 
Published: April 2016

AbstractA complementary set of base metal catalysts has been developed for regiodivergent alkene hydrosilylations: iron complexes of phosphine‐iminopyridine are selective for anti‐Markovnikov hydrosilylations (linear/branched up to >99:1), while the cobalt complexes bearing the same type of ligands provide an unprecedented high level of Markovnikov selectivity (branched/linear up to >99:1). Both systems exhibit high efficiency and wide functional group tolerance.
Unusual Metal–Metal Bonding in a Dinuclear Pt–Au Complex: Snapshot of a Transmetalation Process
Authors: Baya Miguel , Belío Úrsula , Fernández Israel , Fuertes Sara , Martín Antonio 
Published: April 2016

AbstractThe dinuclear Pt–Au complex [(CNC)(PPh3)Pt Au(PPh3)](ClO4) (2) (CNC=2,6‐diphenylpyridinate) was prepared. Its crystal structure shows a rare metal–metal bonding situation, with very short Pt–Au and Au–Cipso(CNC) distances and dissimilar Pt–Cipso(CNC) bonds. Multinuclear NMR spectra of 2 show the persistence of the Pt–Au bond in solution and the occurrence of unusual fluxional behavior involving the [PtII] and [AuI] metal fragments. The [PtII]⋅⋅⋅ [AuI] interaction has been thoroughly studied by means of DFT calculations. The observed bonding situation in 2 can be regarded as a model for an intermediate in a transmetalation process.
Elastin‐like polypeptides: A strategic fusion partner for biologics
Authors: Yeboah Agnes , Cohen Rick I. , Rabolli Charles , Yarmush Martin L. , Berthiaume Francois 
Published: April 2016

ABSTRACTElastin‐like peptides (ELPs) are derivatives of tropoelastin with a unique property that allows them to stay soluble below a certain critical temperature but reversibly form aggregates above that temperature. Since they are derived from tropoelastin, ELPs are biocompatible, non‐toxic, and non‐immunogenic. The unique properties of ELPs have made them a desirable class of fusion tags used in several biomedical applications including targeted drug delivery and enhancing the half‐life of protein drugs. The most significant property of an ELP is that when fused to other proteins, the phase transition property of the ELP is maintained, and the target protein can be purified using the thermally driven property of the ELP. The ELP tag purification process is simple and inexpensive, and involves cycling the protein above and below the transition temperature of the ELP fusion followed by centrifugation to obtain the desired protein, without any need for chromatography. Consequently, using ELPs as a purification tag should be potentially interesting to biopharmaceutical companies who spend a significant percentage of their manufacturing costs on expensive protein purification techniques such as chromatography and filtration. However, ELP tags have not yet been used for commercial protein purification due to some challenges of translating this technique, which has been demonstrated mostly in academic laboratories, to a biotechnology manufacturing environment. The article first reviews the state‐of‐the‐art in protein “ELPylation,” and discusses some applications which have benefitted from using ELP as a fusion tag. Then, the article discusses the main advantages of using ELP as a purification tag, and evaluates the remaining hurdles for its implementation in industrial protein production. Biotechnol. Bioeng. 2016;113: 1617–1627. © 2016 Wiley Periodicals, Inc.
So hard to say goodbye? An investigation into the symbolic aspects of unintended disposition practices
Authors: Suarez Maribel , Dias Campos Roberta , Moreira Casotti Leticia , Velloso Luciana 
Published: April 2016

AbstractEven though disposition is present in the consumer behavior research agenda, most of the studies focus mainly on intentional movements of products leaving the home. The present article describes a less conscious and co‐incidental journey of products into a liminal zone between use and disposal inside homes. A qualitative field study, based on the itinerary method, was undertaken with a group of 26 affluent women in Brazil. The findings show that consumers maintain purgatories – “forgotten” repositories of products no longer in use – as an in‐home disposition practice. The aspects and functioning of purgatory are also detailed, through a typology of purgatories and a discussion of specific strategies to deal with cluttering as a consequence of product accumulation inside homes. Finally, purgatories emerge as a contemporary consumer solution to deal not with individual products but with product collectivities' disposition. Copyright © 2016 John Wiley & Sons, Ltd.
Boosting Hydrogen Production from Methanol and Water by in situ Activation of Bimetallic Cu−Zr Species
Authors: Mayr Lukas , Klötzer Bernhard , Schmidmair Daniela , Köpfle Norbert , Bernardi Johannes , Schwarz Sabine , Armbrüster Marc , Penner Simon 
Published: April 2016

AbstractA bimetallic Cu/Cu51Zr14 precatalyst, activated in situ, for hydrogen generation from methanol and water provides very high CO2 selectivity (>99.9 %) and high H2 yields. Referenced to the geometric surface area of our model surface, higher activity of at least one order of magnitude was observed in comparison to supported Cu/ZrO2 and Cu/ZnO/ZrO2 catalysts. Evolution of structural activation monitored by X‐ray diffraction (XRD), X‐ray photoelectron spectroscopy (XPS), and electron microscopy indicates transformation of the bimetallic Cu/Cu51Zr14 precatalyst into an active, selective, and self‐stabilizing state with coexistence of dispersed Cu and partially hydroxylated tetragonal ZrO2. The outstanding performance is assigned to the presence of a high interface‐site concentration following in situ decomposition of the intermetallic compound. These active sites result from the cooperation of Cu, responsible for methanol activation, and tetragonal ZrO2, which activates the water by surface hydroxylation.
Peroxyl Radical Reactions in Water Solution: A Gym for Proton‐Coupled Electron‐Transfer Theories
Authors: Amorati Riccardo , Baschieri Andrea , Morroni Gloria , Gambino Rossana , Valgimigli Luca 
Published: April 2016

AbstractThe reactions of alkylperoxyl radicals with phenols have remained difficult to investigate in water. We describe herein a simple and reliable method based on the inhibited autoxidation of water/THF mixtures, which we calibrated against pulse radiolysis. With this method we measured the rate constants kinh for the reactions of 2‐tetrahydrofuranylperoxyl radicals with reference compounds: urate, ascorbate, ferrocenes, 2,2,5,7,8‐pentamethyl‐6‐chromanol, Trolox, 6‐hydroxy‐2,5,7,8‐tetramethylchroman‐2‐acetic acid, 2,6‐di‐tert‐butyl‐4‐methoxyphenol, 4‐methoxyphenol, catechol and 3,5‐di‐tert‐butylcatechol. The role of pH was investigated: the value of kinh for Trolox and 4‐methoxyphenol increased 11‐ and 50‐fold from pH 2.1 to 12, respectively, which indicate the occurrence of a SPLET‐like mechanism. H(D) kinetic isotope effects combined with pH and solvent effects suggest that different types of proton‐coupled electron transfer (PCET) mechanisms are involved in water: less electron‐rich phenols react at low pH by concerted electron‐proton transfer (EPT) to the peroxyl radical, whereas more electron‐rich phenols and phenoxide anions react by multi‐site EPT in which water acts as proton relay.
Siloxymethylamines as Aminomethylation Reagents for Amines Leading to Labile Diaminomethanes That can be Trapped as Their [Mo(CO)4] Complexes
Authors: Sharma Hemant K. , Gonzalez Paulina E. , Craig Alexander L. , Chakrabarty Sanchita , Metta‐Magaña Alejandro , Pannell Keith H. 
Published: April 2016

AbstractCompound Et3SiOCH2NMe2 transfers Me2NCH2 to R2NH (R2=Et2, PhMe, [Cr(η6‐C6H5)(CO)3]Me, PhH) to form previously unknown diaminomethanes, Me2NCH2NR2 and, in the case of R2=PhH, the triamine Me2NCH2N(Ph)CH2NMe2. The diaminomethanes exhibit an unreported disproportionation to a mixture of (R2N)2CH2, (Me2N)2CH2, and Me2NCH2NR2, which can be trapped as their [Mo(CO)4(diamine)] complexes. Whereas PhMeNCH2NMe2 is a labile material, the metal‐substituted ([(η6‐C6H5)Cr(CO)3]MeNCH2NMe2 is a stable material. The triamine Me2NCH2N(Ph)CH2NMe2 is unstable with respect to transformation to 1,3,5‐triphenyltriazine, but is readily trapped as the bidentate‐triamineMo(CO)4. All metal complexes were characterized by single‐crystal X‐ray diffraction.
ChemInform Abstract: THE INFLUENCE OF SURFACE STRUCTURE ON THE PHOTOELECTROCHEMISTRY OF POLYCRYSTALLINE N‐TITANIUM DIOXIDE FILMS
Authors: LICHTSCHEIDL J. , HARTIG K. J. , GETOFF N. , TAUSCHNITZ CH. , NAUER G. , BOLTZMANN L. 
Published: April 2016

AbstractDer Zusammenhang zwischen der Oberflächenstruktur, der Filmdicke und dem photoelektrochemischen Verhalten (Photostrom, Korrosion, Stabilität) von durch kontrollierte thermische ‐Oxidation von Ti‐Folien hergestellten n‐TiO, ‐Filmen wird sorgfältig untersucht.
ChemInform Abstract: COMPLEX FORMATION IN MOLTEN SALTS. ASSOCIATION CONSTANTS OF CADMIUM‐BROMIDE COMPLEXES IN POTASSIUM NITRATE‐BARIUM NITRATE EUTECTIC AS SOLVENT
Authors: GUPTA R. K. , GAUR H. C. 
Published: April 2016

AbstractAnhand von potentiometrischen Messungen mit Ag/AgBr(s) und Pd‐PdO‐CdO als Indikatorelektroden im Temp.‐Bereich 568.2‐628.2 K erhält man die thermodynamischen Assoziationskonstanten K11 und K12 für die Bildung von CdBr+ und CdBr2 in verdünnten Lösungen von Cd2+ und Br‐ in KNO3‐Ba(NO3)2‐Schmelze (87.6:12.4 mol‐%).
ChemInform Abstract: THE INITIAL SINTERING OF ALKALINE EARTH OXIDES IN WATER VAPOR AND HYDROGEN GAS
Authors: ITO T. , FUJITA M. , WATANABE M. , TOKUDA T. 
Published: April 2016

AbstractDie Sintergeschwindigkeit für MgO ist in H,O‐Dampf bei 1073 Kdirekt proportional dem H2O‐Druck (27‐2700 Pa) und die scheinbare Aktivierungsenergie des Sintervorganges beträgt 137 kJ mol‐1 (Messungen der Oberflächenverkleinerung und des Kristallit‐ Wachstums).
ChemInform Abstract: SOLAR REDUCTION OF WATER. I. COMPETITION BETWEEN LIGHT‐INDUCED HYDROGEN FORMATION AND HYDROGENATION OF METHYLVIOLOGEN IN THE SYSTEM WATER/TRIS(2,2′‐BIPYRIDINE)RUTHENIUM DICATION/ETHYLENEDIAMINETETRAACETIC ACID/PLATINUM
Authors: JOHANSEN O. , LAUNIKONIS A. , LODER J. W. , MAU A. W.‐H. , SASSE W. H. F. , SWIFT J. D. , WELLS D. 
Published: April 2016

AbstractDie H2‐Produktion im Titelsystem ist von der Hydrierung des MV" zum 1‐Methyl‐4‐ (1′‐methylpiperidin‐4′‐yl)pyridinium‐Kation (I) begleitet und wird durch Faktoren, die diese Hydrierung begünstigen, vermindert.
ChemInform Abstract: SPECTROSCOPIC STUDIES OF LANTHANIDE ION BINDING TO MULTIDENTATE LIGANDS IN AQUEOUS SOLUTION. 3. OPTICALLY ACTIVE TB(EHPG)(L)N AND TB(DPA)M(L)N COMPLEXES
Authors: DAS GUPTA A. , RICHARDSON F. S. 
Published: April 2016

AbstractMittels circularpolarisierter Lumineszenzspektroskopie wird die durch chirale Liganden L in den Gernischtligand‐Titelkomplexen erzeugte optische Aktivität untersucht.
ChemInform Abstract: POLAROGRAPHIC STUDIES ON SYMMETRICAL TRIAZACARBOCYANINES IN ACETONITRILE
Authors: HELLRUNG B. 
Published: April 2016

AbstractDie Reduktionshalbstufenpotentiale des ersten Reduktionsschrittes an symmetrischen Triazacarbocyaninen zeigen eine gute Korrelation mit den Substituentenkonstanten op von (Ib) , aber nicht für die LUMO‐Energien von (I)‐(III).
ChemInform Abstract: INFLUENCE OF THE WATER CONTENT OF THE SOLVENT ON THE PRODUCT DISTRIBUTION IN THE ELECTROHYDRODIMERIZATION OF 2‐CYCLOHEXENONES
Authors: TISSOT P. , SURBECK J.‐P. , GUELACAR F. O. + , MARGARETHA P. 
Published: April 2016

AbstractDurch die Titelreaktion in CH3CN entsteht ein Gemisch der Produkte (II)‐(IV), dessen Gehalt an Glykol (IV) im Bereich von 0‐5% H2O mit steigendem Wassergehalt auf Kosten der Diketone (II) und der Hydroxyketone (III) zunimmt, wobei die dimeren Ketone (IIb) und (IIc) vollständig aus dem Produktgemisch verdrängt werden.
ChemInform Abstract: HYDROCARBON CONVERSION ACTIVITY OF ACID‐GRAPHITE INTERCALATION COMPOUNDS
Authors: IMAMURA H. , TSUCHIYA S. 
Published: April 2016

AbstractDie n‐Pentan Skelettisomerisierung an Katalysatoren aus den in Graphit eingelagerten Lewis‐Säuren‐(AlCl3 , AlBr3 ,SbF5 und FeCl3) oder Brönsted‐Säuren (HNO3 und H2SO4) wurde bei 292 K in einem Gas‐Zirkulationsreaktior untersucht.
ChemInform Abstract: THIOACYL ISOCYANATES. XV. REACTION WITH NUCLEOPHILIC C‐COMPOUNDS
Authors: GOERDELER J. , TIEDT M.‐L. , NANDI K. 
Published: April 2016

AbstractDie aus dem Dithiazolon (I) erhältlichen Thioacyl‐isocyanate (II) (im Rohzustand eingesetzt) addieren Na‐malon‐, ‐cyanessig‐ bzw. ‐acetessigester unter Bildung der Amide (III), von denen sich (IIIb) und (IIIc) zu den Thiazinonen (IV) bzw. (V) cyclisieren lassen.
ChemInform Abstract: PREPARATION, CHARACTERIZATION, AND FLASH VACUUM PYROLYSIS OF DIBENZ(C,E)(1,2)OXATHIIN 6‐OXIDE (BIPHENYLENE SULTINE)
Authors: SQUIRES T. G. , VENIER C. G. , HODGSON B. A. , CHANG L. W. , DAVIS F. A. , PANUNTO T. W. 
Published: April 2016

AbstractDibenzothiophen‐S ,5‐dioxid (I) liefert in Gegenwart von Kronenethern mit KOH ein Umlagerungsprodukt (II), das durch Blitzpyrolyse bei 700 ‐ 900°C in Dibenzofuran (III) und Dibenzothiophen (IV) gespalten wird.
ChemInform Abstract: GENERAL PROCEDURE FOR THE INTRAMOLECULAR α‐TERT‐ALKYLATION OF CARBONYL COMPOUNDS
Authors: REETZ M. T. , CHATZIIOSOFIDIS I. , SCHWELLNUS K. 
Published: April 2016

AbstractDie SnCl4‐katalysierten intramolekularen α‐tert‐Alkylierungen der Carbonylverbindungen (I), (III) bzw. (V) verlaufen als bevorzugte 6‐ oder 7‐endo‐trigonale Cyclisierungen zu den Derivaten (II), (IV) bzw. (VI).
ChemInform Abstract: USE OF TETRABUTYLAMMONIUM HYDROBORATE AND ITS CHLORINE DERIVATIVES FOR THE SELECTIVE REDUCTION OF SOME ACETALS AND ALDEHYDES
Authors: KRYSHTAL' G. V. , GAVRILOVA L. A. , TITOV L. V. , YANOVSKAYA L. A. 
Published: April 2016

AbstractDas Monoacetal des Fumardialdehyds (II) bildet bei der Reduktion mit den Borhydriden (I) Polymere.
ChemInform Abstract: REDUCTION OF CARBOXYLIC ACID DERIVATIVES BY TETRAHYDROBORATE(1‐) ION IN ACIDIC DIMETHYL SULFOXIDE
Authors: WANN S. R. , THORSEN P. T. , KREEVOY M. M. 
Published: April 2016

AbstractAmide wie (I) werden durch Boranat‐Ionen in Gegenwart von sauren Katalysatoren zu entsprechenden Aminen reduziert.
ChemInform Abstract: OXIDATION OF β‐HYDROXYKETONES AND ESTERS: A CONVENIENT SYNTHESIS OF 1,3‐DIKETONES AND β‐KETO ESTERS
Authors: SMITH A. B. III , LEVENBERG P. A. 
Published: April 2016

AbstractDie Ketone (I) reagieren mit Aldehyden zu den Hydroxyketonen (II), deren Oxidation mit Collins‐Reagenz oder Dimethylsulfoxid/Oxalylchlorid zu den 1,3‐Diketonen (III) führt.
ChemInform Abstract: SYNTHESIS OF THE TWO ISOMERS OF THE POTENTIAL SEX PHEROMONE OF THAUMETOPOEA PITYOCAMPA (LEPIDOPTERA, NOTODONTIDAE) AND RELATED MODEL COMPOUNDS
Authors: CAMPS F. , COLL J. , CANELA R. , GUERRERO A. , RIBA M. 
Published: April 2016

AbstractNach bekannten Methoden werden die Sex‐Pheromone des Prozessionsspinners (I) E′! und (II) und die vier strukturverwandten Modellverbindungen (III)‐(VI) dargestellt.
ChemInform Abstract: SYNTHESIS AND PHARMACOLOGICAL STUDY OF ANTIARRYTHMIC ACTIVITY OF QUATERNARY DERIVATIVES OF TRIMECAIN
Authors: ZHUKAUSKAITE L. N. , TSYBUSOV A. P. , GENDENSHTEIN E. I. , STANKEVICHYUS A. P. , TSEPLENE V. S. , LUBAS A. A. 
Published: April 2016

AbstractDas anti‐arrhythmisch wirkende Trimekain (I) wird mit Alkylhalogeniden (II) quaterniert.
ChemInform Abstract: SYNTHESIS OF 1,2‐DIALKYLHYDRAZINES BY STEPWISE PHASE‐TRANSFER‐CATALYZED N‐ALKYLATION OF DIPHENYLPHOSPHINIC HYDRAZIDE
Authors: KLUBA M. , ZWIERZAK A. 
Published: April 2016

AbstractDiphenylphosphinsäurehydrazid (I) wird mit Bromiden unter Phasentransfer‐Bedingungen zu den Verbindungen (II) alkyliert, die nach Überführung in die Acetylderivate (III) analog zur Ausgangssubstanz zu den Dialkylverbindungen (IV) umgesetzt werden.
ChemInform Abstract: STEPWISE SYNTHESIS OF O,O′‐METHYLENE BRIDGED CYCLOHEXAMERS WITH P‐CRESOL AND 4‐TERT‐BUTYLPHENOL STRUCTURAL UNITS. COMPARISON WITH SIMILARLY STRUCTURED CHAIN OLIGOMERS
Authors: KAEMMERER H. + , HAPPEL G. 
Published: April 2016

AbstractDie 6 Phenoleinheiten enthaltenden Alkohole (Ia) bzw. (Ib), deren Synthese bekannt ist, lassen sich in einem Schritt in sehr verdünnter Lösung in Eisessig unter Bildung der Cyclohexameren (IIa) bzw. (IIb) cyclisieren.
ChemInform Abstract: ENANTIOSELECTIVE SYNTHESIS OF THE GIBBANE FRAMEWORK USING L‐GLUTAMIC ACID AS CHIRAL TEMPLATE
Authors: TAKANO S. , KASAHARA C. , OGASAWARA K. 
Published: April 2016

AbstractDas aus L‐Glutaminsäure zugängliche Trityllacton (I) liefert bei zweifacher Alkylierung die Verbindung (II), die in ein 61 :7‐Gemisch der Tricyclen (III) umgewandelt wird.
ChemInform Abstract: REACTIVITIES OF STABLE ROTAMERS. 7. ISOLATION AND RELATIVE REACTIVITIES IN CHROMIUM(VI) OXIDE OXIDATION OF THE ROTAMERS OF 9‐(2‐FORMYL‐1‐NAPHTHYL)FLUORENE AND RELATED ALCOHOLS
Authors: OKI M. , SAITO R. 
Published: April 2016

AbstractDas aus dem Fluorenylmethylnaphthalin (I) mit N‐Bromsuccinimid (NBS) (II) erhaltene Bromid (III) läßt sich mit Hexamethylentetramin (IV) zum Fluorenylnaphthaldehyd (V) oxidieren; die Oxidation des Rotamerengemisches (V) mit CrO 3 liefert in Abhängigkeit von der sterischen Konfiguration neben dem sterisch einheitlichen Aldehyd (ap)‐ (VI) die Fluorenylnaphthoesäure (VII).
ChemInform Abstract: REDUCTIVE CYCLIZATION OF KETO ACIDS TO POLYCYCLIC AROMATIC HYDROCARBONS BY HYDROIODIC ACID‐RED PHOSPHORUS
Authors: PLATT K. L. , OESCH F. 
Published: April 2016

AbstractPhthalsäureanhydrid (II) reagiert mit Phenylmagnesiumbromid (I) zur Ketocarbonsäure (III), die mit rotem Phosphor/HI zum Diphenylmethanderivat (IV) reduziert wird.
ChemInform Abstract: GENERATION AND THERMAL REORGANIZATION OF A LINEARLY‐FUSED N‐METHYLDIBENZOAZOCINYL ANION
Authors: ANASTASSIOU A. G. , KASMAI H. S. , HAUGER D. 
Published: April 2016

AbstractIn Gegenwart von Kaliumamid entsteht aus der Verbindung (I) bei tiefer Temperatur das Anion (II), das beim Erwärmen auf ca. 0°C zum Anion (III) umgelagert wird.