bluuebunny/crossref_metadata_2025_split huggingface dataset:
Terrestrial water flux responses to global warming in tropical rainforest areas
Authors: Lan Chia‐Wei , Lo Min‐Hui , Chou Chia , Kumar Sanjiv 
Published: April 2016

AbstractPrecipitation extremes are expected to become more frequent in the changing global climate, which may considerably affect the terrestrial hydrological cycle. In this study, Coupled Model Intercomparison Project Phase 5 archives have been examined to explore the changes in normalized terrestrial water fluxes (precipitation minus evapotranspiration minus total runoff, divided by the precipitation climatology) in three tropical rainforest areas: Maritime Continent, Congo, and Amazon. Results show that a higher frequency of intense precipitation events is predicted for the Maritime Continent in the future climate than in the present climate, but not for the Amazon or Congo rainforests. Nonlinear responses to extreme precipitation lead to a reduced groundwater recharge and a proportionately greater amount of direct runoff, particularly for the Maritime Continent, where both the amount and intensity of precipitation increase under global warming. We suggest that the nonlinear response is related to the existence of a higher near‐surface soil moisture over the Maritime Continent than that over the Amazon and Congo rainforests. The wetter soil over the Maritime Continent also leads to an increased subsurface runoff. Thus, increased precipitation extremes and concomitantly reduced terrestrial water fluxes lead to an intensified hydrological cycle for the Maritime Continent. This has the potential to result in a strong temporal heterogeneity in soil water distribution affecting the ecosystem of the rainforest region and increasing the risk of flooding and/or landslides.
Lateral erosion in an experimental bedrock channel: The influence of bed roughness on erosion by bed load impacts
Authors: Fuller Theodore K. , Gran Karen B. , Sklar Leonard S. , Paola Chris 
Published: April 2016

AbstractPhysical experiments were conducted to evaluate the efficacy of bed load particle impacts as a mechanism of lateral bedrock erosion. In addition, we explored how changes in channel bed roughness, as would occur during development of an alluvial cover, influence rates of lateral erosion. Experimental channels were constructed to have erodible walls and a nonerodible bed using different mixtures of sand and cement. Bed roughness was varied along the length of the channel by embedding sediment particles of different size in the channel bed mixture. Lateral wall erosion from clear‐water flow was negligible. Lateral erosion during periods in which bed load was supplied to the channel removed as much as 3% of the initial wetted cross‐sectional area. The vertical distribution of erosion was limited to the base of the channel wall, producing channels with undercut banks. The addition of roughness elements to an otherwise smooth bed caused rates of lateral erosion to increase by as much as a factor of 7 during periods of bed load supply. However, a minimum roughness element diameter of approximately half the median bed load particle diameter was required before a substantial increase in erosion was observed. Beyond this minimum threshold size, further increases in the relative size of roughness elements did not substantially change the rate of wall erosion despite changes in total boundary shear stress. The deflection of saltating bed load particles into the channel wall by fixed roughness elements is hypothesized to be the driver of the observed increase in lateral erosion rates.
Valuing water resources in Switzerland using a hedonic price model
Authors: van Dijk Diana , Siber Rosi , Brouwer Roy , Logar Ivana , Sanadgol Dorsa 
Published: April 2016

AbstractIn this paper, linear and spatial hedonic price models are applied to the housing market in Switzerland, covering all 26 cantons in the country over the period 2005–2010. Besides structural house, neighborhood and socioeconomic characteristics, we include a wide variety of new environmental characteristics related to water to examine their role in explaining variation in sales prices. These include water abundance, different types of water bodies, the recreational function of water, and water disamenity. Significant spatial autocorrelation is found in the estimated models, as well as nonlinear effects for distances to the nearest lake and large river. Significant effects are furthermore found for water abundance and the distance to large rivers, but not to small rivers. Although in both linear and spatial models water related variables explain less than 1% of the price variation, the distance to the nearest bathing site has a larger marginal contribution than many neighborhood‐related distance variables. The housing market shows to differentiate between different water related resources in terms of relative contribution to house prices, which could help the housing development industry make more geographically targeted planning activities.
Efficient enzymatic cyclization of an inhibitory cystine knot‐containing peptide
Authors: Kwon Soohyun , Bosmans Frank , Kaas Quentin , Cheneval Olivier , Conibear Anne C. , Rosengren K. Johan , Wang Conan K. , Schroeder Christina I. , Craik David J. 
Published: April 2016

ABSTRACTDisulfide‐rich peptides isolated from cone snails are of great interest as drug leads due to their high specificity and potency toward therapeutically relevant ion channels and receptors. They commonly contain the inhibitor cystine knot (ICK) motif comprising three disulfide bonds forming a knotted core. Here we report the successful enzymatic backbone cyclization of an ICK‐containing peptide κ‐PVIIA, a 27‐amino acid conopeptide from Conus purpurascens, using a mutated version of the bacterial transpeptidase, sortase A. Although a slight loss of activity was observed compared to native κ‐PVIIA, cyclic κ‐PVIIA is a functional peptide that inhibits the Shaker voltage‐gated potassium (Kv) channel. Molecular modeling suggests that the decrease in potency may be related to the loss of crucial, but previously unidentified electrostatic interactions between the N‐terminus of the peptide and the Shaker channel. This hypothesis was confirmed by testing an N‐terminally acetylated κ‐PVIIA, which shows a similar decrease in activity. We also investigated the conformational dynamics and hydrogen bond network of cyc‐PVIIA, both of which are important factors to be considered for successful cyclization of peptides. We found that cyc‐PVIIA has the same conformational dynamics, but different hydrogen bond network compared to those of κ‐PVIIA. The ability to efficiently cyclize ICK peptides using sortase A will enable future protein engineering for this class of peptides and may help in the development of novel therapeutic molecules. Biotechnol. Bioeng. 2016;113: 2202–2212. © 2016 Wiley Periodicals, Inc.
Chemical and morphological gradient scaffolds to mimic hierarchically complex tissues: From theoretical modeling to their fabrication
Authors: Marrella Alessandra , Aiello Maurizio , Quarto Rodolfo , Scaglione Silvia 
Published: April 2016

ABSTRACTPorous multiphase scaffolds have been proposed in different tissue engineering applications because of their potential to artificially recreate the heterogeneous structure of hierarchically complex tissues. Recently, graded scaffolds have been also realized, offering a continuum at the interface among different phases for an enhanced structural stability of the scaffold. However, their internal architecture is often obtained empirically and the architectural parameters rarely predetermined. The aim of this work is to offer a theoretical model as tool for the design and fabrication of functional and structural complex graded scaffolds with predicted morphological and chemical features, to overcome the time‐consuming trial and error experimental method. This developed mathematical model uses laws of motions, Stokes equations, and viscosity laws to describe the dependence between centrifugation speed and fiber/particles sedimentation velocity over time, which finally affects the fiber packing, and thus the total porosity of the 3D scaffolds. The efficacy of the theoretical model was tested by realizing engineered graded grafts for osteochondral tissue engineering applications. The procedure, based on combined centrifugation and freeze‐drying technique, was applied on both polycaprolactone (PCL) and collagen‐type‐I (COL) to test the versatility of the entire process. A functional gradient was combined to the morphological one by adding hydroxyapatite (HA) powders, to mimic the bone mineral phase. Results show that 3D bioactive morphologically and chemically graded grafts can be properly designed and realized in agreement with the theoretical model. Biotechnol. Bioeng. 2016;113: 2286–2297. © 2016 Wiley Periodicals, Inc.
Bulk Crystallization of Proteins by Low‐Pressure Water Evaporation
Authors: Groß Michael , Kind Matthias 
Published: April 2016

AbstractAn advanced technique for bulk protein crystallization based on solvent evaporation is introduced. Hen egg white lysozyme is crystallized from its buffered aqueous solution in a stirred tank at low pressure and, thus, moderate boiling temperatures. No crystallizing agent to reduce the solubility is needed for crystallization. The biological activity of the enzyme remains unchanged during the process and a high crystal yield is achieved. Tetragonal and rod‐like lysozyme crystals, presumably of orthorhombic type, are crystallized at different boiling temperatures. This crystallization technique is proposed as a promising option to crystallize proteins economically, controllably, and gently. This method may replace standard salt‐out steps in existing production processes.
ChemInform Abstract: ESR STUDY OF COPPER‐AMMONIA COMPLEXES IN SOLUTION ADSORBED ON SILICA GELS. 2. ARROW‐PORE SILICA GELS
Authors: MARTINI G. , BASSETTI V. 
Published: April 2016

AbstractBei der Adsorption von Cu‐NH3‐Komplexen an Silicagelen mit Porendurchmessem von l0 nm ist Cu(II)‐Chemisorption an Oberflächenplätzen der Haupteffekt, während frei in der Porenlösung bewegliche Cu(II)+ Spezies erst bei höchsten Cu(II)‐Konzentrationen auftreten.
ChemInform Abstract: AN INFRARED STUDY OF THE SILICA GEL SURFACE. 2. HYDRATION AND DEHYDRATION
Authors: VAN ROOSMALEN A. J. , MOL J. C. 
Published: April 2016

AbstractHydratation und Dehydratation von transparenten Silicagelplättchen werden IR‐ spektroskopisch und thermogravimetrisch untersucht.
ChemInform Abstract: PREPARATION AND CHARACTERIZATION OF SOLID SOLUTIONS OF HYDROXYLAPATITE AND CHLORAPATITE OF CADMIUM
Authors: NARASARAJU T. S. B. , KAPOOR B. K. , RAO K. K. , RAI U. S. 
Published: April 2016

AbstractDie Apatite (III) sowie ihre Mischkristalle (IV) über den gesamten Zusammensetzungsbereich werden durch Festkörperreaktionen bei 550°C dargestellt und chemisch, röntgenographisch, thermoanalytisch sowie IR‐spektroskopisch charakterisiert.
ChemInform Abstract: NATURE OF TRIS(FLUOROSULFATO)BISMUTH(III) AND CHLOROBIS(FLUOROSULFATO)BISMUTH(III)
Authors: PAUL R. C. , SINGH S. , KUMAR R. C. , SHARMA R. D. , VERMA R. D. 
Published: April 2016

AbstractDie neuen Fluorosulfate (III) und (VI) werden)wie im Formelschema skizziert, dargestellt.
ChemInform Abstract: SPECTROSCOPIC STUDIES OF AMMONIA REDUCTION OF AMORPHOUS SILVER METAPHOSPHATE (AGPO3)
Authors: PLOTZKER I. G. , EXARHOS G. J. 
Published: April 2016

AbstractWasserfreies NH3 ist unter relativ milden Bedingungen (60°C, 85 Torr NH3‐Partialdruck) ein wirksames Reduktionsmittel für Ag" an der Oberfläche von AgPO3‐Gläsem.
ChemInform Abstract: KERR CONSTANTS OF LIQUID SYSTEMS. IV. STUDIES ON SCHOLTE′S CONTINUUM MODEL. CALCULATION OF TEMPERATURE AND CONCENTRATION DEPENDENCES OF THE KERR CONSTANTS
Authors: PATZ R. , RAETZSCH M. T. + 
Published: April 2016

AbstractDas Scholte‐Modell wird durch zwei Verbesserungen modifiziert.
ChemInform Abstract: SPECTROSCOPIC STUDIES OF HYDROPHOBIC ASSOCIATION. MEROCYANINE DYES IN CATIONIC AND ANIONIC MICELLES
Authors: MINCH M. J. , SHAH S. S. 
Published: April 2016

AbstractDie Wirkung der Micellen bildenden Tenside Natriumdodecylsulfat und Hexadecyltrimethylammoniumbromid auf die sichtbaren Spektren von Merocyaninfarbstoffen wie (I) wird berichtet.
ChemInform Abstract: SELECTION OF NONPROTONATED CARBON RESONANCES IN SOLID‐STATE NUCLEAR MAGNETIC RESONANCE
Authors: OPELLA S. J. , FREY M. H. 
Published: April 2016

AbstractDie beschrien anderen Signalen freie, Aufzeichnung der "C‐Resonanzen aller C‐Atome in polykristallinen organischen Molekülen, die nicht mit Protonen verbunden sind.
ChemInform Abstract: SOLID COMPOUNDS OF DIBROMO(N,N‐DIBUTYLDITHIOCARBAMATO)GOLD(III) WITH TRANS‐STILBENE, TRANS‐AZOBENZENE AND TRANS,TRANS‐1,4‐DIPHENYL‐1,3‐BUTADIENE. CRYSTAL STRUCTURE DETERMINATIONS OF (BR2AUS2CN(C4H9)2)2.C6H5(CH)2C6H5 AND (BR2AUS2CN(C4H9)2).C6H5(CH)4C6H5
Authors: WIJNHOVEN F. TH. H. M. , BOSMAN W. P. , WILLEMSE J. , CRAS J. A. 
Published: April 2016

AbstractDibromo‐N,N‐dibutyldithiocarbamato‐Au(III) bildet mit den organischen Verbindungen L Produkte der Zusammensetzung (I).
ChemInform Abstract: FREE ENERGIES OF SOLUTION OF RARE GASES AND ALKANES IN WATER AND NONAQUEOUS SOLVENTS. A QUANTITATIVE ASSESSMENT OF THE HYDROPHOBIC EFFECT
Authors: ABRAHAM M. H. 
Published: April 2016

AbstractDie standardisierten freien Lösungsenergien (meist Literaturwerte) aller Edelgase und der n‐Alkane Methan bis Octan für Lösungen in unterschiedlichsten Lösungsmitteln ( ;z.B. Decan, Cyclohexan, Benzol, Toluol, Halogenbenzole, Aceton, Nitrobenzol, ‐methan, Alkanole) sind tabelliert.
ChemInform Abstract: THE CYCLOHEPTATRIENE RADICAL ANION
Authors: FOX M. A. , KABIR‐UD‐DIN KABIR‐UD‐DIN , BIXLER D. , ALLEN W. S. 
Published: April 2016

AbstractCycloheptatrien (I) liefert bei der Reduktion in Protonen‐freien Lösungsmitteln an der Pt‐Elektrode über die Reduktionsstufen (II) und (III) die beiden Cycloheptadiene (IV) und (V) neben verschiedenen Dimeren.
ChemInform Abstract: OPTICALLY ACTIVE α‐ AND β‐NAPHTHALENE DERIVATIVES. IV. SYNTHESIS AND OPTICAL PURITY OF 2‐METHYL‐3‐ AND 2,2‐DIMETHYL‐3‐(α‐ AND β‐NAPHTHYL)BUTANES
Authors: PICCOLO O. , MENICAGLI R. , LARDICCI L. 
Published: April 2016

AbstractAus den optisch aktiven Methylestern (R)‐(I) werden mit LAD die entsprechenden Anionen erzeugt und mit MeI zu den Derivaten (R)‐(II) alkyliert, deren Reduktionsprodukte (R)‐(III) über die Tosylate in die Methylbutane (R)‐(IV) übergeführt werden.
ChemInform Abstract: PHOTOCHEMICAL TRANSFORMATIONS OF SMALL RING COMPOUNDS. 107. STUDIES DEALING WITH THE INTRAMOLECULAR HYDROGEN ATOM TRANSFER REACTION OF TETRASUBSTITUTED CYCLOPROPENES
Authors: PADWA A. , BLACKLOCK T. J. , CHOU C. S. , HATANAKA N. 
Published: April 2016

AbstractWährend Alkylcyclopropene wie z.B. (Ia) bei direkter Photolyse unter Ringöffnung reagieren, tritt bei Reaktionen über den Triplettzustand (Thioxanthon‐sensibilisiert) intermolekulare H‐Abspaltung zum bicyclischen und olefinischen Produkt (IIa) bzw. (IIIa) ein.
ChemInform Abstract: OXIDATION BY QUINONES. MECHANISTIC ASPECTS OF AROMATIC SIDE‐CHAIN ACYLOXYLATION BY 2,3‐DICHLORO‐5,6‐DICYANO‐1,4‐BENZOQUINONE (DDQ)
Authors: EBERSON L. , JOENSSON L. + , WISTRAND L.‐G. 
Published: April 2016

AbstractMethylierte Aromaten wie z.B. (I) werden durch DDQ in Eisessig nach 4stündigem Rückflußkochen zu den Benzylacetaten (II) umgesetzt, wobei die Reaktionsgeschwindigkeit in der angegebenen Reihenfolge abnimmt.
ChemInform Abstract: USE OF POTASSIUM BROMATE: BROMINATION OF BENZENE
Authors: BANERJEE A. , BANERJEE G. C. , BANERJEE S. 
Published: April 2016

AbstractUntersucht wird die Bromierung von Benzol und Brombenzol mit KBrO3 in Schwefelsäure/Essigsäure unter verschiedenen Bedingungen.
ChemInform Abstract: ALKYLATION OF ETHYL BROMOMALONATE BY ALKYLCOBALOXIMES
Authors: VEBER M. , DUONG K. N. V. , GAUDEMER F. , GAUDEMER A. 
Published: April 2016

AbstractDie Alkylcobaltoxime (I) reagieren in Chloroform bei Raumtemperatur mit Brommalonester (II) zu Allylmalonestern (IV).
ChemInform Abstract: THERMAL, PHOTOCHEMICAL, AND PHOTONUCLEAT
Authors: LEWIS T. W. , CURTIN D. Y. , PAUL I. C. 
Published: April 2016

AbstractIn der kristallinen Phase läßt sich z.B. die Titelverbindung (Ia) durch l0tägiges Erwärmen auf l l0°C, UV‐Bestrahlung oder Erwärmen bei vorangegangener UV‐Einwirkung zum Fuchson (II) dehydratisieren.
ChemInform Abstract: CROSS‐COUPLING OF ALLYLIC SULFIDES AND GRIGNARD REAGENTS CATALYZED BY NICKEL‐PHOSPHINE COMPLEX
Authors: OKAMURA H. , TAKEI H. 
Published: April 2016

AbstractIsopropyl‐ally1‐sulfid (I) reagiert mit Phenylmagnesiumbromid (II) zum Allylbenzol (III).
ChemInform Abstract: ENAMIDES IN ORGANIC SYNTHESIS. PART 3. A NEW ACETALDEHYDE ANION EQUIVALENT
Authors: BIELAWSKI J. , BRANDAENGE S. + , LINDBLOM L. , RAMANVONGSE S. 
Published: April 2016

AbstractDas Pyrrolidon (I) reagiert ‐ vermutlich über sein Lithiumenolat als Zwischenstufe ‐ mit Hexanal (II) zu dem Octenal (III), mit Cyclohexanon (IV) zum Gemisch der isomeren Alkanale (V) und (VI), die destillativ getrennt werden können.
ChemInform Abstract: CHIRAL ACETYLENES AS SYNTHETIC INTERMEDIATES. III. OPTICALLY ACTIVE 1,4‐DIALKYL‐1,3‐BUTADIYNES
Authors: GIACOMELLI G. , BERTUCCI C. , MARCACCI F. , SALVADORI P. 
Published: April 2016

AbstractButadiine wie (I)‐(IV) werden nach an sich bekannten Methoden hergestellt.
ChemInform Abstract: THE PREPARATION OF SYNTHONS ON ROUTE TO TERPENOIDS OF MARINE ORIGIN
Authors: ROUESSAC F. , ZAMARLIK H. 
Published: April 2016

AbstractAus dem Dialdehyd‐bis‐acetal (I) und den Vinylethern (II) erhält man die Homologisierungsi′ produkte (III), die zu den Cyclohexenaldehyden (IVa) cyclisiert werden.
ChemInform Abstract: SYNTHESIS OF (4.4.4.4)CYCLOPHANES
Authors: TANNER D. , THULIN B. , WENNERSTROEM O. + 
Published: April 2016

AbstractWittig‐Reaktion der Dialdehyde (I) bzw. (IV) mit dem Phosphoniumbromid (II) liefert die vinylogen Dialdehyde (III) bzw. (V), die mit dem Wittig‐Reagenz (VI) zu den Cyclophanen (VII) bzw. (VIII) umgesetzt werden.
ChemInform Abstract: (24)NAPHTHALENOPHANES
Authors: TANNER D. , THULIN B. , WENNERSTROEM O. + 
Published: April 2016

AbstractDie Cyclophantetraene (I), (III), (IV) und (VI) mit zwei und vier Naphthalineinheiten werden durch vierfache Wittig‐Reaktion von 1,4‐Benzoldicarbaldehyd mit Bis‐[triphenylphosphonium]‐salzen von 1,4‐, 1,5‐ bzw. 2,6‐Bis‐ [brommethyl]naphthalin dargestellt.
ChemInform Abstract: CLASSICAL APPROACH TO 1,2,4,6,8‐CYCLONONAPENTAENE
Authors: WAALI E. E. , ALLISON N. T. 
Published: April 2016

AbstractAus dem Cyclooctatetraendibromcarben‐Addukt (I) erhält man mit Methyllithium über die Zwischenstufen (III)‐(V) Inden (VI).
ChemInform Abstract: HYDROXYMETHYLATION AND CYANOETHYLATION OF NITROIMIDAZOLES
Authors: SEHGAL R. K. , AGRAWAL K. C. 
Published: April 2016

AbstractHydroxyethylnitro‐imidazol (Ia) liefert die Derivate (Ib) und (Ic), während das Nitril (Id) in dieser Weise nicht zugänglich ist.
ChemInform Abstract: HETEROCYCLES FROM SUBSTITUTED SEMICARBAZIDES AND THIONYL CHLORIDE. 1‐OXO‐1,2,3,5‐THIATRIAZOLIDIN‐4‐ONE
Authors: ZIMAN S. D. 
Published: April 2016

AbstractAus den (Thio)Semicarbaziden (I) entstehen mit Thionylchlorid in Gegenwart von Pyridin die Cyclisierungsprodukte (II) in recht unterschiedlichen Ausbeuten.
ChemInform Abstract: COMPLETE ASYMMETRIC INDUCTION IN HETEROCONJUGATE ADDITION ON AN ACYCLIC SYSTEM. A NEW SYNTHETIC APPROACH DIRECTED TOWARD ANSAMACROLIDE MAYTANSINE
Authors: ISOBE M. , KITAMURA M. , GOTO T. 
Published: April 2016

AbstractAus dem ungesättigten Sulfon (I) erhält man mit Methyllithium über diskutierte Zwischenstufen das Methylierungsprodukt (IIa), das zu (IIb) verseift oder mit KF zu (III) gespalten wird.
ChemInform Abstract: SEARCH FOR FLUORESCENT BRIGHTENERS. I. SYNTHESIS OF 2‐(3‐COUMARINYL)BENZOXAZOLES AND THEIR FLUORESCENCE
Authors: JOSEPH K. U. , SOMAYAJULU V. V. 
Published: April 2016

AbstractBeim Erhitzen mit der 10fachen Menge Polyphosphorsäure (PPS) kondensieren die o‐Aminophenole (I) mit der Cumarincarbonsäure (II) zu den 2‐substituierten Benzoxazolen (III).
ChemInform Abstract: SYNTHESIS OF BENZOXANTHONE DERIVATIVES
Authors: KATO T. , NAKANO J. , KATAGIRI N. 
Published: April 2016

AbstractDas durch Dieckmann‐Kondensation aus dem Ester (I) erhaltene instabile Tetrahydroxynaphthalinderivat (II) wird durch Umsetzung mit dem Benzoylchlorid (III) in die Mono‐ und Diacyloxynaphthaline (IV) und (V) übergeführt.
ChemInform Abstract: STUDIES OF A SERIES OF FUNCTIONALIZED HYDROINDOLIZINES
Authors: CELERIER J.‐P. , ESKENAZI C. , LHOMMET G. , MAITTE P. 
Published: April 2016

AbstractMalonester (I) wird mit Magnesiumethylat und dem entsprechenden Säurechlorid zu (II) substituiert, das über (III) zu (V) cyclisiert wird.
ChemInform Abstract: ON THE REACTIONS OF 1,4,7‐TRIKETONES WITH HYDRAZINE
Authors: STETTER H. , LANDSCHEIDT A. 
Published: April 2016

AbstractDie l,4,7‐Triketone (I) reagieren mit Hydrazin unter milden Bedingungen zu den Dihydropyridazin‐hydrazonen (II), aus gleichen oder reaktiveren Triketonen (III) entstehen, teilweise über isolierbare Zwischenstufen der Art (II), die Pyrrolopyridazine (IV), die durch Chloranil zu den Pyrrolopyridazinen (V) dehydriert werden.
ChemInform Abstract: SYNTHESIS OF SUBSTITUTED PYRROLO(2,3‐D)PYRIMIDINE‐2,4‐DIONES
Authors: ETSON S. R. , MATTSON R. J. , SOWELL J. W. SEN. 
Published: April 2016

AbstractAus den Aminocyano‐pyrrolen (I) erhält man mit Chlorkohlensäureester (II) die Substitutionsprodukte (III), die über die Amide (IV) zu (V) cyclisiert werden.
ChemInform Abstract: SYNTHESIS OF DIHYDROOXAZINES FROM A MODIFIED BISCHLER‐NAPIERALSKI REACTION
Authors: FREEMAN P. W. , QUESSY S. N. , WILLIAMS L. R. 
Published: April 2016

AbstractBei der Reaktion des Amidoketals (Ia) mit Phosphorpentoxid in Pyridin entsteht das Dihydrooxazin (IIa).
ChemInform Abstract: SYNTHESIS OF AN UNUSUAL CARBODIIMIDE
Authors: HIATT R. R. , SHAIO M.‐J. , GEORGES F. 
Published: April 2016

AbstractDiphensäure (I) liefert über eine Reduktion ihres Diamids das Diamin (II), das mit Schwefelkohlenstoff zum cyclischen Thioharnstoff (III) reagiert.
ChemInform Abstract: SYNTHESIS OF 1,2‐DIHYDROINDOLO(1,7‐AB)(1,5)BENZODIAZEPINES AND RELATED STRUCTURES. A NEW HETEROCYCLIC RING SYSTEM
Authors: GLAMKOWSKI E. J. , FORTUNATO J. M. 
Published: April 2016

AbstractAus den Indolinen (I) und den 2‐Fluornitrobenzolen (II) entstehen die Kondensate (III), die zu den Amino‐phenyl‐Verbindungen (IV) reduziert und dann zu (V) acyliert werden.
ChemInform Abstract: SYNTHESIS OF NOVEL MACROCYCLIC ETHER‐ESTER COMPOUNDS VIA THE INTRAMOLECULAR CYCLIZATION OF OLIGOETHYLENE GLYCOL MONOCARBOXYMETHYL ETHERS
Authors: MATSUSHIMA K. , KAWAMURA N. , OKAHARA M. 
Published: April 2016

AbstractNatriumbromacetat kondensiert mit Polyethylenglykolen (I) zu den Ethern (II), die bei Behandlung mit Tosylchlorid und Alkalicarbonat zu den makrocyclischen Monoester‐ethern (III) kondensiert werden.
ChemInform Abstract: NOVEL HETEROCYCLES. 3. SYNTHESIS OF FUSED 1,3,2‐BENZODIAZAPHOSPHORIN RING SYSTEMS
Authors: COPPOLA G. M. 
Published: April 2016

AbstractDie früher beschriebenen Cyclisierungsprodukte (Ia) und (Ib) geben mit Methyliodid die P‐Methyl‐Derivate (II), deren Struktur u.a. durch unabhängige Synthese von (IIa) aus (III) und Methylphosphonsäuredichlorid bestätigt wird.
ChemInform Abstract: HIGHLY SELECTIVE ANTI‐MARKOVNIKOV TYPE OXIDATION OF OLEFINIC BONDS OF ALLYLIC ALCOHOL DERIVATIVES. SPECIFIC SYNTHESIS OF β‐ALKOXY‐α‐PHENYLSELENOCARBONYL COMPOUNDS
Authors: SHIMIZU M. , TAKEDA R. , KUWAJIMA I. 
Published: April 2016

AbstractAus den Allylethern (I) erhält man mit Benzolselensäureanhydrid (II) die Substitutionsprodukte (III).
ChemInform Abstract: STEREOSELECTIVE FORMATION AND ELECTROPHILIC SUBSTITUTION OF ALDEHYDE HYDRAZONE LITHIO ANIONS
Authors: DAVENPORT K. G. , EICHENAUER H. , ENDERS D. , NEWCOMB M. , BERGBREITER D. E. 
Published: April 2016

AbstractDie Stereochemie der Titelanionen, die durch Deprotonierung der Aldehyddimethylhydrazone (I) gebildet werden, wird mittels 1H‐NMR‐Spektroskopie und Einfang‐Untersuchungen bestimmt.