bluuebunny/crossref_metadata_2025 huggingface dataset:
CHANDRA X-RAY AND HUBBLE SPACE TELESCOPE IMAGING OF OPTICALLY SELECTED KILOPARSEC-SCALE BINARY ACTIVE GALACTIC NUCLEI. II. HOST GALAXY MORPHOLOGY AND AGN ACTIVITY*
Authors: Shangguan Jinyi , Liu Xin , Ho Luis C. , Shen Yue , Peng Chien Y. , Greene Jenny E. , Strauss Michael A.
Published: May 2016

Binary active galactic nuclei (AGNs) provide clues to how gas-rich mergers trigger and fuel AGNs and how supermassive black hole (SMBH) pairs evolve in a gas-rich environment. While significant effort has been invested in their identification, the detailed properties of binary AGNs and their host galaxies are still poorly constrained. In a companion paper, we examined the nature of ionizing sources in the double nuclei of four kiloparsec-scale binary AGNs with redshifts between 0.1 and 0.2. Here, we present their host galaxy morphology based on F336W (U-band) and F105W (Y-band) images taken by the Wide Field Camera 3 on board the Hubble Space Telescope. Our targets have double-peaked narrow emission lines and were confirmed to host binary AGNs with follow-up observations. We find that kiloparsec-scale binary AGNs occur in galaxy mergers with diverse morphological types. There are three major mergers with intermediate morphologies and a minor merger with a dominant disk component. We estimate the masses of the SMBHs from their host bulge stellar masses and obtain Eddington ratios for each AGN. Compared with a representative control sample drawn at the same redshift and stellar mass, the AGN luminosities and Eddington ratios of our binary AGNs are similar to those of single AGNs. The U − Y color maps indicate that clumpy star-forming regions could significantly affect the X-ray detection of binary AGNs, e.g., the hardness ratio. Considering the weak X-ray emission in AGNs triggered in merger systems, we suggest that samples of X-ray-selected AGNs may be biased against gas-rich mergers.
Erythristic leopards Panthera pardus in South Africa
Authors: Pirie Tara J. , Thomas Rebecca L. , Fellowes Mark D.E.
Published: May 2016

Background: Leopards (Panthera pardus) show genetically determined colour variation. Erythristic (strawberry) morphs, where individuals are paler and black pigment in the coat is replaced by a red-brown colour, are exceptionally rare in the wild. Historically, few records exist, with only five putative records known from India.Objectives: To record the presence of erythristic leopards in our study site (Thaba Tholo Wilderness Reserve, Mpumalanga) and to collate records from across South Africa. Method: A network of camera traps was used to record individual leopards at Thaba Tholo. We also surveyed local experts, searched the popular South African press, and used social media to request observations.Results: Two out of 28 individual leopards (7.1%) recorded in our study site over 3 years were of this colour morph. We obtained records of five other erythristic leopards in the North West and Mpumalanga regions, with no reports outside of this population.Conclusions: Erythristic leopards are widely dispersed across north-east South Africa, predominantly in the Lydenburg region, Mpumalanga. The presence of this rare colour morph may reflect the consequences of population fragmentation.
Constraints on methane emissions in North America from future geostationary remote-sensing measurements
Authors: Bousserez Nicolas , Henze Daven K. , Rooney Brigitte , Perkins Andre , Wecht Kevin J. , Turner Alexander J. , Natraj Vijay , Worden John R.
Published: May 2016

Abstract. The success of future geostationary (GEO) satellite observation missions depends on our ability to design instruments that address their key scientific objectives. In this study, an Observation System Simulation Experiment (OSSE) is performed to quantify the constraints on methane (CH4) emissions in North America obtained from shortwave infrared (SWIR), thermal infrared (TIR), and multi-spectral (SWIR+TIR) measurements in geostationary orbit and from future SWIR low-Earth orbit (LEO) measurements. An efficient stochastic algorithm is used to compute the information content of the inverted emissions at high spatial resolution (0.5°  ×  0.7°) in a variational framework using the GEOS-Chem chemistry-transport model and its adjoint. Our results show that at sub-weekly timescales, SWIR measurements in GEO orbit can constrain about twice as many independent flux patterns than in LEO orbit, with a degree of freedom for signal (DOF) for the inversion of 266 and 115, respectively. Comparisons between TIR GEO and SWIR LEO configurations reveal that poor boundary layer sensitivities for the TIR measurements cannot be compensated for by the high spatiotemporal sampling of a GEO orbit. The benefit of a multi-spectral instrument compared to current SWIR products in a GEO context is shown for sub-weekly timescale constraints, with an increase in the DOF of about 50 % for a 3-day inversion. Our results further suggest that both the SWIR and multi-spectral measurements on GEO orbits could almost fully resolve CH4 fluxes at a spatial resolution of at least 100 km  ×  100 km over source hotspots (emissions  >  4  ×  105 kg day−1). The sensitivity of the optimized emission scaling factors to typical errors in boundary and initial conditions can reach 30 and 50 % for the SWIR GEO or SWIR LEO configurations, respectively, while it is smaller than 5 % in the case of a multi-spectral GEO system. Overall, our results demonstrate that multi-spectral measurements from a geostationary satellite platform would address the need for higher spatiotemporal constraints on CH4 emissions while greatly mitigating the impact of inherent uncertainties in source inversion methods on the inferred fluxes.
DESENVOLVIMENTO MUNICIPAL RURAL COM BASE NAS SUAS POTENCIALIDADES: APLICAÇÃO DA MATRIZ DE CONDICIONANTES, POTENCIALIDADES E DEFICIÊNCIAS – CPD
Authors: Morgan Andressa , Weber Josiane , Agnolin Cristiane Teresinha , Bernardy Rógis Juarez
Published: May 2016

Este artigo apresenta uma proposta de desenvolvimento para gestão de pequenas propriedades rurais do município de Guatambu (SC). Foi elaborado um diagnóstico com os dados referentes às propriedades rurais do município pesquisado, identificando as suas fragilidades e potencialidades e aplicada a matriz de Condicionantes, Potencialidades e Deficiências (CPD). Por fim, sugeriu-se um modelo de gestão para as pequenas propriedades rurais. O estudo se deu por meio de pesquisa descritiva, com enfoque qualitativo. Com relação aos procedimentos metodológicos trata-se de um estudo de caso. Constataram-se algumas das dificuldades encontradas nas pequenas propriedades rurais como: as más condições das estradas, os problemas habitacionais, a ausência de meios de comunicação como internet e telefone, fato que dificulta o acesso à informação e a permanência dos jovens no campo. Percebeu-se a necessidade de diversificar a produção, visando garantir a renda do pequeno agricultor. Identificaram-se também divergências entre o que as entidades consideram questões de maior relevância e a realidade do pequeno produtor. Conclui-se que se faz necessário oferecer alternativas para diversificação da produção, promover maior diálogo entre os agricultores e as entidades a fim de proporcionar melhores condições de vida para as famílias do campo garantindo sua permanência e diminuindo o êxodo rural.
A Model to End Water Poverty Through Sustainable Service Delivery
Authors: Allen Eleanor , Lemme Kimberly S.
Published: May 2016

Communities in developing countries are building and sustaining their own water infrastructure using water for people's everyone forever model.
Climate‐Resilient Outcomes From the International Water & Climate Forum
Authors: Brown Erica , Greenwood Rob
Published: May 2016

When international water sector leaders examined climate change impacts and how they're being addressed, it became evident that flexibility, collaboration, communication, and resilience are essential for adaptive water management.
No Sacred Cows: Getting to the Crux of the Matter
Authors: Bui Ann
Published: May 2016

Management that combines visionary leadership, a culture of constant optimization, and thoughtfully innovative financial practices leads any sustainably successful organization. The mission of AWWA's Management & Leadership Division has always been to advance and disseminate the knowledge that water utility managers and leaders need to keep our water utilities and our industry relevant and sustainable.
Sustainability: Playing the Long Game
Authors: McGuire Michael J.
Published: May 2016

Engineers and utility managers have always thought about capital projects in terms of economic viability. Does it make economic sense to build that pipeline or replace that treatment plant? As a result of societal and environmental realities, we must now pay attention to how sustainable a new project might be. What are the environmental impacts in the supply chain? Is that new building having the least impact on water resources, heating requirements, and electrical energy demands? Are the materials used the best from a sustainable point of view? What are the energy requirements, and can they be met using renewable energy supplies? With the predicted impacts from climate change, sustainability has become a more urgent requirement for water projects.
European Impatiens species differences at RAPD and ISSR loci
Authors: Ramonienė Edita , Jocienė Lina , Paulauskas Algimantas , Kupčinskienė Eugenija
Published: May 2016

Information concerning comparison of three widely spread European species of Impatiens along wider geographical areas is still missing. The present study is aimed at comparing genetic variability at RAPD and ISSR loci of Impatiens noli-tangere, I. parviflora, and I. glandulifera, covering a marked geographic area. Twenty four populations of these Impatiens (eight populations of each species) from two countries (Lithuania and Czech Republic) were examined. Eight randomly amplified polymorphic DNA (RAPD) and 5 inter simple sequence repeat (ISSR) markers were chosen considering the lack of data on the general molecular characteristics of Impatiens. The highest genetic differentiation at RAPD loci (GST = 0.81) was characteristic of I. parviflora, and the highest genetic differentiation at ISSR loci (GST = 0.73) was documented for I. glandulifera. According to Nei’s genetic distances between two species populations, significant correlations were determined for I. noli-tangere and I. parviflora (r = 0.79; p
ChemInform Abstract: High‐Pressure Studies of Transition‐Metal Complexes. Part 1. Induced Torsional Deformation in Re2Cl2‐ 8.
Authors: MORRIS D. E. , SATTELBERGER A. P. , WOODRUFF W. H.
Published: May 2016

The pressure dependence of the electronic absorption and Raman spectra of a solution of (Bu4N)2Re2Cl8 in CH2Cl2 has been investigated.
ChemInform Abstract: Neutron Diffraction Study of Electrochemically Synthesized Djerfisherite.
Authors: TANI B. , MRAZEK F. , FABER J. , HITTERMAN R.
Published: May 2016

A synthetic form of the rare mineral djerfisherite has been produced in an electrochemical cell of the type LiAl/LiCl‐KCl/FeS operating at 450 °C. The mineral is obtained in a relatively pure state and in sufficient quantity to allow neutron powder diffraction analysis.
ChemInform Abstract: Chemistry of Phosphorus. Part 168. About the Isomers of Tetraphosphane(6), P4H6.
Authors: BAUDLER M. , RIEKEHOF‐BOEHMER R. + , KRAUSE U. M.
Published: May 2016

Phosphane mixtures containing 26‐48% of the overall P content as P4H6 have been investigated by 31P NMR.
ChemInform Abstract: A Multinuclear Solid‐State NMR Investigation of the Chemisorption of Ammonia on γ‐Alumina.
Authors: MAJORS P. D. , RAIDY T. E. , ELLIS P. D.
Published: May 2016

Wide‐line 2H and 15N NMR spectroscopies have been used to investigate the surface preparation‐dependent NH3‐γ‐Al2O3 interactions.
ChemInform Abstract: Properties of SiO2 on Si After Exposure to 3:1 H2 + N2 and NH3.
Authors: RUGGLES G. A. , KOBA R. , TRESSLER R. E.
Published: May 2016

It is demonstrated that SiO2 films annealed in 3:1 H2 + N2 (950 °C, 30 min) exhibit significantly different properties compared with films nitrided in 100% NH3 (950 °C, 30 min), because NH3 did not attain thermodynamic equilibrium in the tube furnace before encountering the silicon substrates.
ChemInform Abstract: Electrochemical and XPS Measurements on Thin Oxide Films on Zirconium.
Authors: MEISTERJAHN P. , HOPPE H. W. , SCHULTZE J. W.
Published: May 2016

The potentiodynamic growth of thin oxide films on Zr electrodes has been investigated as a function of surface pretreatment, potential and pH.
ChemInform Abstract: On the Role of Cr in the Passivity of Stainless Steel.
Authors: BROOKS A. R. , CLAYTON C. R. , DOSS K. , LU Y. C.
Published: May 2016

Anodic films formed on 304 stainless steel in 0.5 M H2SO4 or 0.5 M H2SO4 + 0.35 M NaCl consist of a Cr‐rich inner layer and an Fe‐rich outer layer.
ChemInform Abstract: O2 Generation by Oxidation of Water Using Di‐ and Trinuclear Ruthenium Complexes as Homogenous and Heterogenous Catalysts.
Authors: RAMARAJ R. , KIRA A. , KANEKO M.
Published: May 2016

The catalytic activity of the Ru‐complexes (I)‐(IV) for H2O oxidation has been investigated using the catalysts in pure form or adsorbed on kaoline.
ChemInform Abstract: Photoelectrocatalysis of Oxygen Evolution on n‐TiO2.
Authors: CONTRACTOR A. Q. , BOCKRIS J. O'M.
Published: May 2016

Metal islets (Au, Ir, Pd, Ru, Pt, Rh, Ni, Ag, Co, Pb), deposited galvanostatically at 240 μA cm‐2 on an n‐TiO2 electrode surface, catalyze the photoelectrochemical evolution of O2.
ChemInform Abstract: Synthesis and Properties of the Trihydrate of Potassium Oxosulfatofluorovanadate(IV).
Authors: IVAKIN A. A. , CHUFAROVA I. G. , KORYAKOVA O. V. , GLAZYRIN M. P.
Published: May 2016

The hitherto unknown title compound, KVOSO4F·3 H2O, is prepared in solution at 25 °C from VOSO4·3 H2O and KF·2 H2O in the presence of 0.1 N HF.
ChemInform Abstract: MINDO‐Forces Calculations of Allyl and Crotyl Systems. Part 1. Theoretical Study with Complete Optimization of Geometry.
Authors: JARJIS H. M. , KHALIL S. M.
Published: May 2016

The stability and the CCC angle is observed to increase going from the allyl cation to the radical.
ChemInform Abstract: Metal Complexes of Uridine in Solution.
Authors: REDDY P. R. , RAO V. B. M.
Published: May 2016

The stability constants of binary and ternary complexes of Cu(II), Ni(II), Zn(II), Co(II), Mn(II), Mg(II), and Ca(II) with uridine as a primary ligand and glycine, histidine, histamine, and oxalic acid as secondary ligands are determined in aqueous medium by potentiometric pH‐titration techniques.
ChemInform Abstract: Electrochemistry of the Manganese(III)‐Manganese(IV) 5,10,15,20‐Tetrakis(p‐trimethylammoniophenyl)porphyrinate Couple.
Authors: BETTELHEIM A. , OZER D. , WEINRAUB D.
Published: May 2016

The redox behavior of the title complex couple is studied in aqueous solution using cyclic voltammetry, optical transparent electrode thin‐layer spectroelectrochemistry, a rotating ring‐disc electrode, and differential pulse voltammetry.
ChemInform Abstract: Regioselective Ring‐Cleavage Reaction of Tetrahydrofurans and Tetrahydropyrans Accompanied by Carbon‐Carbon Bond Formation.
Authors: OKU A. , HOMOTO Y. , HARADA T.
Published: May 2016

The 2‐substituted tetrahydrofurans (Ia), (Ic) ‐ (Ie) and the tetrahydropyran (Ib) are cleaved by the allylsilanes (II) and the propynylsilane (IV) to give the unsaturated alcohols (III) or (V).
ChemInform Abstract: Oxidative Cleavage of 2‐Aryl‐1,3‐dioxolanes by Treatment with Nitric Acid.
Authors: AKAMANCHI K. G. , BARVE P. P.
Published: May 2016

The aryl dioxolanes (II) are hydrolyzed by diluted HNO3 to yield the parent aldehydes (I).
ChemInform Abstract: Reductive Rearrangement with Hydride Transfer of Linearly and Angularly Fused Triquinanes.
Authors: KAKIUCHI K. , UE M. , KUMANOYA S. , TAKEUCHI H. , TOBE Y. , ODAIRA Y.
Published: May 2016

Reductive rearrangement of the tricycloundecanols (I), (VIII), (IX), and (X) yields mixtures of the hydrocarbons (II) ‐ (VII).
ChemInform Abstract: Back‐Reactions in the Photochemical Disproportionation of Cp2Mo2(CO)6 (Cp: C5H4CH3) and the Wavelength‐Dependent Photochemistry of the Cp2Mo2(CO)6 Complex with PPh3.
Authors: PHILBIN C. E. , GOLDMAN A. S. , TYLER D. R.
Published: May 2016

Irradiation of (I) with PPh3 in CH2Cl2 proceeds to give (II) and (III), while a similar disproportionation reaction in benzene or other nonpolar solvents does not occur at the same wavelength but for λ = 290 nm, because a secondary photochemical reaction of the initially formed (II) takes place to give (IV).
ChemInform Abstract: Structure‐Reactivity Studies and Catalytic Effects in the Photosolvolysis of Methoxy‐Substituted Benzyl Alcohols.
Authors: WAN P. , CHAK B.
Published: May 2016

Photoalkanolysis of the most reactive title compound (I) leads to the ethers (IVa) (quantum yields 0.31‐0.11) which are accompanied in part by the secondary product 2,6‐dimethoxytoluene (yield 4‐6%).
ChemInform Abstract: Electron Transfer vs. Excited‐State Reactions in the Photochemical Reaction of the 2‐Vinylnaphthalene‐Fumaronitrile System.
Authors: YAMAGUCHI K. , OH S.‐C. , SHIROTA Y.
Published: May 2016

Direct irradiation of 2‐vinylnaphthalene (I) and fumaronitrile (II) in benzene or acetonitrile yields predominantly the copolymer (III).
ChemInform Abstract: An ESR Investigation of the Products of the Friedel‐Crafts Reaction of Sulfur Dioxide with Methylnaphthalenes.
Authors: BAKKER M. G. , CLARIDGE R. F. C. , KIRK C. M.
Published: May 2016

The title reactions of (I) and (V) leads to predominant formation of the cation radicals (II) or (VI), respectively.
ChemInform Abstract: The Use of 5‐Halocyclooctenes as a Radical Probe. Reactions with Lithium Aluminum Hydride.
Authors: ASHBY E. C. , PHAM T. N.
Published: May 2016

The 5‐halocyclooctenes (Ia) ‐ (Ic) or the tosylate (Id) react with lithium aluminum hydride to give various amounts of the reduction products (II) ‐ (IV).
ChemInform Abstract: Reactions of Alkylidenecarbenes Derived from N,N‐Disubstituted‐2‐Oxopropanamides: The Formation of 3‐Pyrrol‐2‐ones and 2‐Butynamides.
Authors: GILBERT J. C. , BLACKBURN B. K.
Published: May 2016

Pyridinium hydroxymaleic anhydride (I) reacts with the amines (II) to give the 2‐oxopropanamides (III).
ChemInform Abstract: Kinetics and Mechanisms of Oxidations with Nitrous Acid. Part 1. Substituted Benzyl Alcohols and Benzyl Methyl Ether in Aqueous Sulfuric Acid.
Authors: MOODIE R. B. , RICHARDS S. N.
Published: May 2016

The oxidation of the alcohols (I) and benzyl methyl ether is first order in the presence of excess HNO2 (20 fold).
ChemInform Abstract: Oxidation of Enolates by Dibenzyl Peroxydicarbonate to Carbonates of α‐Hydroxy Carbonyl Compounds.
Authors: GORE M. P. , VEDERAS J. C.
Published: May 2016

Dibenzyl peroxydicarbonate (III), which can be readily generated from benzyl chloroformate (I), reacts with the oxazolidinones (IV) after lithiation to give the carbonates (VI).
ChemInform Abstract: A Convenient Method of Benzylic Oxidation with Pyridinium Chlorochromate.
Authors: RATHORE R. , SAXENA N. , CHANDRASEKARAN S.
Published: May 2016

The benzylic derivatives (I) are oxidized by pyridinium chlorochromate to produce the aryl ketones (II).
ChemInform Abstract: The Sodium Borohydride and Sodium Cyanoborohydride Reduction of Unsymmetrically Substituted 3‐Chloro‐2‐propeniminium Salts.
Authors: GUPTON J. T. , MOEBUS M. A. M. , BUCK T.
Published: May 2016

The aryl chloropropeniminium salts (I) are reduced with sodium cyanoborohydride (II), yielding the dimethylaminopropenes E‐(III).
ChemInform Abstract: Deoxygenation of Acetylenic Carbinols. Reduction of Cobalt Carbonyl Adducts with Borane‐Methyl Sulfide and Trifluoroacetic Acid.
Authors: MCCOMSEY D. F. , REITZ A. B. , MARYANOFF C. A. , MARYANOFF B. E.
Published: May 2016

In order to avoid formation of the corresponding allenes, the propargylic alcohols (I) are converted to their dicobalt hexacarbonyl complexes which are then deoxygenated with borane/dimethylsulfide.
ChemInform Abstract: Synthesis and Hypocholesterinemic Activity of Aminoalkinyl Linoleates.
Authors: ERGASHEV M. S. , MAKHSUMOV A. G. , KHADZHIEV A. K.
Published: May 2016

The linoleic acid propargylester (I) is aminomethylated to give the aminomethylalkinyl esters (III) which show hypocholesterinemic activity.
ChemInform Abstract: Carbonylation of Aldehydes in Strong Acid. A General Synthesis of 3,4‐Dialkyl‐2(5H)‐furanones.
Authors: WOO E. P. , CHENG F. C. W.
Published: May 2016

The aldehydes (I) react with CO in a strongly acidic medium to give the lactones (II) via the aldehydes (III) which can be obtained and converted independently.
ChemInform Abstract: Reaction of Ethynylferrocene with Arenesulfenyl Chlorides.
Authors: FLORIS B. , ILLUMINATI G.
Published: May 2016

In the presence of hindered base the substitution product such as (III) is the main product of the reaction of (I) with the arenesulfenyl chloride (II).
ChemInform Abstract: Alkylation Reactions of Propargyl Alcohol; Improved Routes to Prostaglandin α‐Side Chain Precursors.
Authors: CASY G. , FURBER M. , RICHARDSON K. A. , STEPHENSON G. R. , TAYLOR R. J. K.
Published: May 2016

An improved synthetic route to the key prostaglandin α‐side chain precursor (VI) or the corresponding ether (VII) uses the orthoester (IIIa) which is available from the nitrile (I) via (II) as starting compound.
ChemInform Abstract: 1,2‐Dimethylspiro(2.3)hex‐1‐ene by Addition of Cyclobutylidene to 2‐Butyne.
Authors: BRINKER U. H. , WEBER J.
Published: May 2016

Treatment of 1,3‐dibromopropane (I) with diethyl malonate (II) in aqueous sodium hydroxide in the presence of a phase transfer catalyst yields 1,1‐cyclobutane dicarboxylic acid (III).
ChemInform Abstract: Lewis Acid Induced Asymmetric Prins Reactions of Chiral Acetals with Alkenes.
Authors: SNIDER B. B. , BURBAUM B. W.
Published: May 2016

The benzaldehyde acetals (I) are coupled with methylenecyclohexane (II) in the presence of dimethylaluminum chloride (III) to produce the γ‐chloroethers (IV).
ChemInform Abstract: Facile Synthesis of Glycol Metabolites of Phenethylamine Drugs.
Authors: HOLSHOUSER M. H. , KOLB M.
Published: May 2016

Bromination of the corresponding acetophenones yields the α‐bromoacetophenones (I).
ChemInform Abstract: A Convenient Method for the Hydrolysis of Diethylthioacetals Catalyzed by Trityl Perchlorate.
Authors: OHSHIMA M. , MURAKAMI M. , MUKAIYAMA T.
Published: May 2016

The diethylthioacetals (I) are transformed into the parent carbonyl compounds (II), using trityl perchlorate as a catalyst.
ChemInform Abstract: Regioselective AlPO4‐Al2O3 Promoted Ring‐Opening of 2,3‐Epoxy Esters.
Authors: RIEGO J. , COSTA A. , SAA J. M.
Published: May 2016

The saturated 2,3‐epoxy ester (I) is regioselectively cleaved by the O‐ and S‐nucleophiles (II), yielding the hydroxy esters (III).
ChemInform Abstract: The Oxidation of 1‐Thioaroylsemicarbazides.
Authors: KURZER F. , DOYLE K. M.
Published: May 2016

The oxidation of the title compounds (III) by Br2 or by peroxide does not afford the expected and hitherto unknown 1,2,4,5‐thiatriazines, but the disulfides (IV).
ChemInform Abstract: Cyclodimerization of Benzylideneacetophenone and Its Derivatives by Use of Triiron Dodecacarbonyl.
Authors: UEDA T. , OTSUJI Y.
Published: May 2016

The styryl aryl ketones (I) are cyclized directly or via the iron complexes (III) to yield the cyclopentenyl ketones (II).
ChemInform Abstract: A Convenient Synthesis of 5‐Aryltropolones via Novel Benzidine Type Rearrangement of 2‐(2‐Arylhydrazino)tropones.
Authors: NOZOE T. , TAKASE K. , SAITO H. , YAMAMOTO H. , IMAFUKU K.
Published: May 2016

The troponoids (I) and the phenylhydrazines (II) produce the arylhydrazinotropone derivatives (III) which rearrange in the presence of acids, yielding the diamino derivatives (IV).
ChemInform Abstract: Synthesis of αβ‐Unsaturated Aldehydes by 1,3‐Carbonyl Transposition Through One‐Carbon Homologation. Part 2.
Authors: CHAKRABORTI R. , DEB S. , GHATAK U. R.
Published: May 2016

The aldehydes (III) are prepared from the tetralone (I) by Grignard reaction and treatment with BF3·Et2O. The indene‐2‐aldehydes (V) are obtained from the indenones (IV) in an analogous manner, and the cycloalkene‐2‐aldehydes (VII) are obtained from the alicyclic ketones (VI).
ChemInform Abstract: o‐Pleiadienequinones. Part 2. Nucleophilic Substitution Reaction of o‐Pleiadienequinone with Alcohols.
Authors: TSUNETSUGU J. , YAMAGUCHI T. , EBINE S. , MORINAGA K.
Published: May 2016

Hydrolysis of the dichloro ketone (I) affords the title compound (II) and small amounts of the acetoxy chloro ketone (III).
ChemInform Abstract: Ruthenium(IV) Tetrakis(trifluoroacetate), a New Oxidizing Agent. Part 2. A New Access to the Skeleton of Schizandrin Using Biaryl Oxidative Coupling of cis‐Substituted Butanolides.
Authors: LANDAIS Y. , LEBRUN A. , ROBIN J. P.
Published: May 2016

Intramolecular biaryl coupling of the ethylenic lactone (I) using ruthenium tetrakis(trifluoroacetate) (RUTFA) (II) gives the bisbenzocyclooctatrienolide (III).
ChemInform Abstract: Small Rings. Part 29. Synthesis and Ring Expansion of Vinylazetidines. A Synthesis of Hydroazocines.
Authors: HASSNER A. , WIEGAND N.
Published: May 2016

The 1,3‐dienes (I) are coupled with chlorosulfonylisocyanate (II) to give the N‐substituted vinylazetidinones (III), which are reduced with aluminum hydride to yield the azetidines (IV).
ChemInform Abstract: Improved Synthesis of α‐Methylene‐γ‐lactones via Organotin Reagents.
Authors: BALDWIN J. E. , ADLINGTON R. M. , SWEENEY J. B.
Published: May 2016

Reaction of the 2‐ethoxycarbonylallylstannane (I) with the aldehydes (II) in the presence of boron fluoride yields the γ‐hydroxyacrylates (III).
ChemInform Abstract: Studies on Lactams. Part 75. Stereocontrolled Synthesis of β‐Lactams from Amidomalonates: Intermediates for Thienamycin, Carpetimycin and Analogs.
Authors: MANHAS M. S. , BHAWAL B. M. , SHANKAR B. B. , BOSE A. K.
Published: May 2016

The intramolecular cyclization of the epoxides (II), derived from the N‐acroylaminomalonates (I), leads to the stereocontrolled formation of the β‐lactams (III).
ChemInform Abstract: Synthesis of Pyrrolizidinediones from Cyclic N,N‐Diacylamino Acids.
Authors: BESTMANN H. J. , MOENIUS T. , SOLIMAN F.
Published: May 2016

The cyclic N,N‐diacylamino acids (I) react with the phosphorane (II) to produce the addition products (III).
ChemInform Abstract: Regioselective Alkylation of 1,3‐Dioxolan‐2‐ylium Cation Derived from αβ‐Unsaturated Aldehyde Ethylene Acetal with Lithium Organo Compounds.
Authors: MUKAIYAMA T. , HAYASHI Y. , HASHIMOTO Y.
Published: May 2016

The lithium organocuprates (II) react with the vinyldioxolanylium tetrafluoroborates (I) to yield the γ‐adducts (III).
ChemInform Abstract: Heterocyclic N‐Sulphinylamines: Cycloadditions to Heteroaryl Substituted δ3‐1,2,3,5‐Thiatriazoline‐1‐oxides and 3,6‐Dihydro‐1,2‐thiazine‐1‐ oxides.
Authors: BUTLER R. N. , O'HALLORAN G.
Published: May 2016

The heterocyclic N‐sulphinylamines (I) undergo a thermal cycloaddition reaction with 2,3‐dimethylbutadiene (II) to form the adducts (III).
ChemInform Abstract: The search for Radioprotectors in the Series of Glutaminic Acid Derivatives.
Authors: VATULINA G. G. , TUZHILKOVA T. N. , MATVEEVA T. V. , KRASNOV V. P. , BURDE N. L. , ALEKSEEVA L. V.
Published: May 2016

The 4‐piperidinyl‐L‐glutaminic acid L‐(III) is synthesized from the bromophthalimido‐L‐glutamate.
ChemInform Abstract: Synthesis of Fused Heterocycles: 1,2,3,4‐Tetrahydroisoquinolines and Ring Homologues via Sulfonamidomethylation.
Authors: ORAZI O. O. , CORRAL R. A. , GIACCIO H.
Published: May 2016

The conversion of the amines (I) to sulfonamides (III) is followed by reaction with formaldehyde, generated from (VI), in an acidic medium to yield (IV) (analogues with a five‐ or nine‐membered heterocyclic moiety cannot be prepared by this procedure).
ChemInform Abstract: Substituted 1,8‐Naphthyridines. Part 3. Synthesis and Biological Activity of Some 1,8‐Naphthyridine Derivatives.
Authors: REDDY K. V. , MOGILAIAH K. , SREENIVASULU B.
Published: May 2016

Friedlaender condensation of 2‐aminonicotinaldehyde (I) with the aryl methyl ketones (II) produces the 2‐aryl‐1,8‐naphthyridines (III).
ChemInform Abstract: Synthetic Connections to the Aromatic Directed Metalation Reaction. A Modified Niementowski Quinoline Synthesis from Anthranilamides.
Authors: CHONG R. J. , SIDDIQUI M. A. , SNIECKUS V.
Published: May 2016

The anthranilamides (I) and (V) are converted to the corresponding imines (III), which are cyclized by treatment with lithium diisopropylamide to yield the 4‐quinolones (IV).
ChemInform Abstract: Arylation, Alkylation, Reduction, and Pyrolysis of 1H‐1‐Methylindeno‐(2,1‐b)pyridine.
Authors: SOLDATENKOV A. T. , BAGDADI M. V. , FEDOROV V. O. , PROSTAKOV N. S.
Published: May 2016

Nucleophilic substitution of the indenopyridine (I) leads to the C2‐ and the C4‐substituted derivatives (IIa) and (IIb).
ChemInform Abstract: A Novel Synthesis of 1,4‐Dihydrobenzo(c)‐1,5‐naphthyridin‐2(3H)‐ones from Pyrrolo(1,2‐b)isoquinolines.
Authors: MARTIN L. L. , SCOTT S. J. , AGNEW M. N. , SETESCAK L. L.
Published: May 2016

The N‐benzylprolines (Ia) and (Ib) react with thionylchloride and subsequently with AlCl3 to give the cyclization products (IIa) or (IIb) and (IIc) which are transformed separately into the oximes (III).
ChemInform Abstract: Synthesis of Some 2,4‐Diamino‐6‐(substituted)amino‐5‐arylazopyrimidines and Their Effect on the Growth of S.faecalis.
Authors: SEN D. , BHOWMIK S. , SENGUPTA P.
Published: May 2016

The 5‐arylazopyrimidines (III) are prepared by coupling the trisubstituted pyrimidines (I) with the diazotized arylamines (II) using known methods.
ChemInform Abstract: Synthesis of a Thioxotriazine Derivative from 6‐Methyl‐1,4‐benzoxazin‐ 3(2H)‐one.
Authors: HOGALE M. B. , DHORE N. P. , KHOT B. R.
Published: May 2016

The hetero Diels‐Alder reaction of the isothiocyanate (III), prepared from (I), with acetonitrile (IV) yields the title compound (V).
ChemInform Abstract: Studies on Pyrrolidinones. An Improved One‐Step Synthesis of Perhydrodipyrrolo(2,1‐b:1′,2′‐e)(1,3,5)oxadiazine‐4,8‐dione.
Authors: RIGO B. , LELIEUR J.‐P. , KOLOCOURIS N.
Published: May 2016

Methylene bispyroglutamic acid (I) is converted to the diol (II) by anodic oxidation.
ChemInform Abstract: Organoboranes. Part 49. An Examination of Convenient Procedures for the Generation of Borane and Monoalkyl‐ and Dialkylboranes from Lithium Borohydride and Monoalkyl‐ and Dialkylborohydrides.
Authors: COLE T. E. , BAKSHI R. K. , SREBNIK M. , SINGARAM B. , BROWN H. C.
Published: May 2016

The simple preparation of monoalkyl‐ and dialkylboranes previously developed by addition of MeI to Li monoalkyl‐ and dialkylborohydrides in THF is expanded to alternative procedures involving other solvents and other reagents.
ChemInform Abstract: Clay Montmorillonite‐Catalyzed Aldol Reactions of Silyl Enol Ethers with Aldehydes and Acetals.
Authors: KAWAI M. , ONAKA M. , IZUMI Y.
Published: May 2016

The silyl enol ethers (I) react with the aldehydes or aldehyde acetals (II) in the presence of aluminum cation‐exchanged montmorillonite to yield the keto silyl ethers (III).
ChemInform Abstract: trans‐2‐Diethylphosphoryloxy‐1,3‐pentadiene in the Lewis Acid Catalyzed Diels‐Alder Reaction.
Authors: LIU H.‐J. , FENG W. M.
Published: May 2016

The pentadiene derivative (I) mentioned in the title is employed as the diene component in several tin tetrachloride‐catalyzed Diels‐Alder reactions: the cycloaddition reaction with the cyclohexenone‐1‐carboxylate (II) yields a mixture of the epimers (IIIa) and (IIIb).
ChemInform Abstract: Formation of Phospha‐Alkenes by Direct Condensation of Ar‐PH2 and R‐CHO.
Authors: ISSLEIB K. , SCHMIDT H. , LEISSRING E.
Published: May 2016

The acid catalyzed condensation of the highly sterically hindered phosphine (I) with the aromatic aldehydes (II) yields E/Z mixtures of the title compounds (III).
ChemInform Abstract: Synthesis of 1,3‐Azaphospholines‐1.
Authors: HEINICKE J. , TZSCHACH A.
Published: May 2016

The cycloaddition of the phosphane (I) to the isonitrile (II) gives the 1,3‐azaphospholine‐1 (III).
ChemInform Abstract: Thio‐ and Seleno‐Lactonizations of Alkynoic Acids.
Authors: TORU T. , FUJITA S. , SAITO M. , MAEKAWA E.
Published: May 2016

In the presence of compound (VII) (trapping agent for HCl), the alkynoic acids (I) are regio‐ and stereoselectively converted to the target lactones (II) and the by‐products (III) and (IV) by treatment with the sulfenyl and selenenyl chlorides (V).
ChemInform Abstract: Cycloaddition of Germylenes to 3,5‐Di‐t‐butyl‐o‐quinone.
Authors: RIVIERE P. , CASTEL A. , SATGE J. , GUYOT D.
Published: May 2016

Difluorogermylene (Ia) reacts with 3,5‐di‐tert‐butyl‐o‐quinone (II) in THF to form the 1,3,2‐dioxagermole (IIIa).
ChemInform Abstract: Sterically Hindered Metal Alkenyls. Part 2. Synthesis and Properties of Tin(IV) Alkenyls: Stereochemical Features and Energetics of Isomerisation of SnMe2(C(C10H7)=CMe2)2.
Authors: CARDIN D. J. , SULLIVAN A. C.
Published: May 2016

The compounds (I)‐(III) have been prepared from the tin halogenide and the corresponding Grignard reagent in THF.
ChemInform Abstract: Chemistry of the Podocarpaceae. Part 70. Synthesis and Cyclopentaannulation of a Diterpenoid Chromium Carbene Complex.
Authors: CAMBIE R. C. , RUTLEDGE P. S. , TERCEL M. , WOODGATE P. D.
Published: May 2016

The pentacarbonylcarbene chromium complexes (II) are prepared from the diterpenoid bromide (I), together with some other products such as (III) and (IV).
ChemInform Abstract: Polyhedral Molybdenaborane Chemistry: nido‐6‐Molybdenadecaboranes Including the Molecular Structure of (6,6,6,6‐(CO)2(PMe2Ph)2‐nido‐6‐MoB9H12‐5‐Cl). Some Structural Intercomparisons.
Authors: GREENWOOD N. N. , KENNEDY J. D. , MACPHERSON I. , THORNTON‐PETT M.
Published: May 2016

The reaction of the complex (I) with the arachno‐nonaborane anion (II) gives the new ten‐vertex nido‐molybdenaborane cluster (III).
ChemInform Abstract: Coordinatively Unsaturated Alkyne Complexes of Molybdenum and Tungsten: Reactions and Dynamic NMR Studies of (M(SC6F5)(CO)(CF3CCCF3)(η5‐C5H5)) (M: Mo or W) Complexes.
Authors: DAVIDSON J. L.
Published: May 2016

Variable‐temp.
ChemInform Abstract: η‐Arene‐Rhenium Chemistry: Activation of sp3 Carbon‐Hydrogen Bonds of Alkylbenzenes by Rhenium; Formation of Binuclear μ‐Alkylidene Derivatives.
Authors: GREEN M. L. H. , O'HARE D.
Published: May 2016

Co‐condensation of Re atoms with arenes (IIa)‐(IIc) gives the complexes (I), whereas with (IId) a mixture of the isomers (III) is obtained.
ChemInform Abstract: The Complex (Fe(phen)2(CN)2) (phen = 1,10‐Phenanthroline) and Its Solutions.
Authors: MADDOCK A. G.
Published: May 2016

The different coloured solutions and solid forms of the title complex contain only this species.
ChemInform Abstract: Reactions of Acids and Alkyl Iodides with (Fe2(η‐C5H5)2(CNMe)4) and Related Complexes.
Authors: MANNING A. R. , MURRAY P.
Published: May 2016

The very high nucleophilicity and basicity of the N atoms of the μ‐CNR ligands in the Fe complexes (I) (only the cis isomer of (Ia), R1: Me, is used) is illustrated by their ability to react with alkyl iodides to give the cationic mono‐ and bis(iminium) derivatives (IIa), (IIb) or (IIIa), (IIIb) using a reactant molar ratio of 1:3‐10 or 1:30, respectively.
ChemInform Abstract: Some Attempts to Prepare Five‐Coordinated Gold(III) Complexes. Crystal and Molecular Structures of Cyclic (Au(C6H4CH2NMe2‐2)(phen)(PPh3)) (BF4)2·CH2Cl2, Bicyclic (Au(C6H4CH2NMe2‐2)(NC9H6O))BF4, and Bicyclic (Au(C6H4CH2NMe2‐2)(H2NC6H4S))ClO4.
Authors: VICENTE J. , CHICOTE M. T. , BERMUDEZ M. D. , JONES P. G. , FITTSCHEN C. , SHELDRICK G. M.
Published: May 2016

The gold(III) complex (I) reacts with neutral phosphine ligands to give the five‐coordinate complexes (II) and with KCN to yield (III) for which a five‐coordinate structure is proposed.
ChemInform Abstract: cis and trans Palladium(II) and Platinum(II) Complexes with 1,8‐Bis(diphenylphosphino)‐3,6‐dioxaoctane and Their Structural Characterization. The First Example of an Eleven‐Membered Diphosphine Chelate Involving cis Geometry.
Authors: HILL W. E. , TAYLOR J. G. , FALSHAW C. P. , KING T. J. , BEAGLEY B. , TONGE D. M. , PRITCHARD R. G. , MCAULIFFE C. A.
Published: May 2016

The monomeric cis and trans complexes (I) and (II), in which the ligand binds only by the two phosphine donor atoms, are synthesized and characterized by IR, electronic, and 31P NMR spectroscopy and molecular weight measurements.
ChemInform Abstract: Preparation, Stereochemistry, and Crystal Structures of Some Complexes of the Macrocycle 3,3,7,7,11,11,15,15‐Octamethyl‐1,9‐dithia‐5,13‐diazacyclohexadecane with Co(II), Ni(II), Cu(I), Cu(II), Zn(II), Rh(III), Ag(I), Cd(II), Pt(II), and Hg(II) Salts.
Authors: MCCRINDLE R. , FERGUSON G. , MCALEES A. J. , PARVEZ M. , RUHL B. L. , STEPHENSON D. K. , WIECKOWSKI T.
Published: May 2016

The complexing properties of the title ligand (I) towards a variety of metal ions is investigated.
ChemInform Abstract: Synthesis, Reactions, and NMR Studies of Some Substituted arachno‐Decaborane and arachno‐Nonaborane Derivatives, and the Isolation of Novel Polyhedral Diplatinaboranes. Crystal and Molecular Structure of (Pt2(PMe2Ph)2(η3‐B2H5)(η3‐B6H9)).
Authors: AHMAD R. , CROOK J. E. , GREENWOOD N. N. , KENNEDY J. D.
Published: May 2016

Reaction of the nido‐boranes (I) with Me2S affords the substituted arachno‐decaboranes (II), which, when heated under reflux with alcohols, give the arachno‐derivatives (III) and (IV).
ChemInform Abstract: Studies on the Use of 7‐Amino‐3‐(4‐aminophenyl)quinoline as a Benzidine Substitute.
Authors: KRISHNAN R. , SEKAR N. , SESHADRI S.
Published: May 2016

The title compound (IV), prepared from the malondialdehyde (I) and m‐phenylenediamine (II) by subsequent reduction of the nitro compound (III), is used as a benzidine substitute in the preparation of azo dyes such as (VI).
ChemInform Abstract: Synthesis of 6‐Acetamido‐2‐Substituted Quinoxaline Derivatives and Their Use as Fluorescent Whiteners for Polyester Fibres.
Authors: RANGNEKAR D. W. , TAGDIWALA P. V.
Published: May 2016

6‐Nitro‐2‐chloroquinoxaline (III), prepared from (I) by nitration and chlorination, reacts with the amines (IV) to yield the 2‐amino derivatives (V).
ChemInform Abstract: Synthesis of Isosteric Methylene‐oxy Pseudodipeptide Analogues as Novel Amide Bond Surrogate Units.
Authors: RUBINI E. , GILON C. , SELINGER Z. , CHOREV M.
Published: May 2016

The syntheses of the fully protected dipeptide isosteres (II) and (V) which incorporate a methylene‐oxy bond replacing the amide bond is accomplished by condensation of the corresponding aminoalcohols (I) or (IVb) with bromoesters (III).
ChemInform Abstract: An Approach to the Preparation of Glycosyl Phosphates Using Salicylchlorophosphite as the Phosphitylating Reagent.
Authors: HERMANS J. P. G. , DE VROOM E. , ELIE C. J. J. , VAN DER MAREL G. A. , VAN BOOM J. H.
Published: May 2016

The reaction of the pyranose (I) with the title reagent (II) in the presence of Et3N yields the adduct (III) which reacts with the alcohol (IV) to afford the phosphite‐triester (V).
ChemInform Abstract: Application of a Radical Reaction to the Synthesis of L‐Iduronic Acid Derivatives from D‐Glucuronic Acid Analogues.
Authors: CHIBA T. , SINAY P.
Published: May 2016

Radical bromination of the glucuronates acids (I) produces the corresponding α‐bromo derivatives (II), which are reduced by tributyltin hydride to give the L‐iduronic acid derivatives (III), together with the epimeric starting material (I).
ChemInform Abstract: Chlorination of a 1,5‐Anhydro‐3‐nitro‐1‐enitol Derivative in Various Ethers and Its MNDO Study.
Authors: SAKAKIBARA T. , YOSHINO K. , IIZUKA H. , ISHIDO Y.
Published: May 2016

Chlorination of 3‐nitro‐D‐glucal (I) in various ethers (II) yields the α‐D‐glucopyranosyl chlorides (III) and/or the ω‐chloroalkyl‐β‐D‐hexopyranosides (IV) and (V).
ChemInform Abstract: Total Synthesis of Amauromine.
Authors: TAKASE S. , ITOH Y. , UCHIDA I. , TANAKA H. , AOKI H.
Published: May 2016

The synthesis of the title compound (X) starts from the acid (I).
ChemInform Abstract: Approaches to the Synthesis of Aspidosperma Alkaloids. Part 2. Synthesis of 18,19‐Didehydrotabersonine.
Authors: BLOWERS J. W. , SAXTON J. E. , SWANSON A. G.
Published: May 2016

Following the pathway shown in the scheme, the desired title compound (VIII) can be prepared starting from the aldehyde (I) (yield given in g for compound (III)).
ChemInform Abstract: Total Synthesis of 2′‐Deoxytoyocamycin, 2′‐Deoxysangivamycin and Related 7‐β‐D‐Arabinofuranosylpyrrolo(2,3‐d)pyrmidines via Ring Closure of Pyrrole Precursors Prepared by the Stereospecific Sodium Salt Glycosylation Procedure.
Authors: RAMASAMY K. , ROBINS R. K. , REVANKAR G. R.
Published: May 2016

The feasibility of attaching a sugar moiety stereospecifically to a preformed fully aromatic pyrrole is demonstrated by preliminary experiments, e.g. by the conversion (I) → (IIIa) (followed by deprotection and ammonolysis to afford (IIIb)).
ChemInform Abstract: Synthesis of 7‐Azaindole Glycosides.
Authors: KUPCHEVSKAYA I. P. , MIKHNOVSKAYA N. D. , STETSENKO A. V. , YANISHEVSKAYA T. V.
Published: May 2016

7‐Azaindole (I) is coupled with the protected bromo sugars (II) to give the azaindole glycoside acetates (III) which are hydrolysed under alkaline conditions, producing the free glycosides (IV).
ChemInform Abstract: Glycosides of Substituted Pyridazinones‐3.
Authors: KUPCHEVSKAYA I. P. , STETSENKO A. V.
Published: May 2016

The pyridazinones (I) are coupled with the protected bromo sugars (II) to give the pyridazinone glycoside acetates (III) which are hydrolysed under alkaline conditions, producing the free pyridazinone glycosides (IV).
ChemInform Abstract: The Structures of Vulgarin and Its Isomers. A Reinvestigation.
Authors: ABEGAZ B. , CAMPS F. , COLL J. , FELIZ M. , JACOBSSON U. , MIRAVITLLES C. , MOLINS E. , TORRAMILANS J.
Published: May 2016

The title compound (Ia), isolated from the green parts of Artemisia rehan, is proved to be identical with barrelin, judaicin and tauremisin.
ChemInform Abstract: Synthesis from Aleuritic Acid of (Z)‐9‐Tricosene (Muscalure): The Sex‐ Attractant of Housefly.
Authors: SUBRAMANIAN G. B. V. , MICHAEL G.
Published: May 2016

Natural erythro‐aleuritic acid (I) is converted into the aldehyde (II) which is treated with n‐heptyl magnesium iodide to produce the triol (III) after acidic hydrolysis.
ChemInform Abstract: InP Etchant for Submicron Patterns.
Authors: MATSUOKA T. , NAGAI H.
Published: May 2016

The new chemical etching solution, saturated bromine water (SBW), which has been developed for fabricating submicron patterns on InP and InGaAsP crystal surfaces, shows many advantages, such as small undercutting, low and stable etching rate for high controllability and reproducibility, no pit or gas generation for high uniformity.
ChemInform Abstract: Raman and 67Zn NMR Studies of the Structure of Zinc(II) Solutions in Concentrated Aqueous Potassium Hydroxide.
Authors: CAIN K. J. , MELENDRES C. A. , MARONI V. A.
Published: May 2016

The Raman results obtained for a wide range of Zn2+ and OH‐ concentrations give evidence of only one highly symmetrical Zn2+ complex, which is shown by 67Zn NMR spectroscopy to be tetrahedral Zn(OH)42‐.
ChemInform Abstract: Composition and Thermochemistry of the Equilibrium Vapour of the Systems NaI‐FeI2 and NaI‐PbI2
Authors: HILPERT K. , GERADS H. , KOBERTZ D. , MILLER M.
Published: May 2016

in the temp. ranges 574‐683 K and 562‐669 K, resp., have been investigated by the mass spectrometric Knudsen effusion method.
ChemInform Abstract: Solution Thermodynamics of Europium‐Fluoride Complexation.
Authors: BAISDEN P. A. , GRANT P. M. , KINARD W. F. , TORRES R. A.
Published: May 2016

The enthalpy of formation of EuF2+ in solution has been redetermined by titration at μ = 1.0 M (NaClO4) to be ΔH101 = 9.61 kJ mol‐1 at 25 °C. This value is a factor of 4.0 lower than the presently accepted literature value.
ChemInform Abstract: Effect of Anisotropic Graphite on Discharge Performance of Positive Plates in Pasted‐Type Lead‐Acid Batteries.
Authors: TOKUNAGA A. , TSUBOTA M. , YONEZU K. , ANDO K.
Published: May 2016

It is demonstrated that the addition of anisotropic graphite to the positive paste results in an improvement of the cycle life performance of the pasted‐type lead‐acid battery and in an increase of the capacity of the positive plates.
ChemInform Abstract: Effects of Microencapsulation of Hydrogen Storage Alloy on the Performances of Sealed Nickel/Metal Hydride Batteries.
Authors: SAKAI T. , ISHIKAWA H. , OGURO K. , IWAKURA C. , YONEYAMA H.
Published: May 2016

Particles of the hydrogen storage alloy LaNi4.7Al0.3 are microencapsulated by a porous, thin film of Cu and the improvement of anodes of this microencapsulated alloy powder is demonstrated.
ChemInform Abstract: Lithium Intercalation Cells Without Metallic Lithium: MoO2/LiCoO2 and WO2/LiCoO2.
Authors: AUBORN J. J. , BARBERIO Y. L.
Published: May 2016

In order to avoid the problems associated with metallic Li (poor cycling efficiency, high equivalent volume, extreme reactivity), the possibility of using a reducing intercalation compound such as MoO2 or WO2 as negative electrode material coupled with highly oxidizing LiCoO2 as positive electrode material in secondary electrochemical cells has been studied.
ChemInform Abstract: New, One‐Step Syntheses of BrF3O and BrF4O‐ Salts and the Preparation and Characterization of RbBrF4O and NaBrF4O.
Authors: WILSON W. W. , CHRISTE K. O.
Published: May 2016

The reactions, outlined in the scheme, provide new, simple one‐step syntheses of BrF4O‐ salts and BrF3O starting from commercially available materials.
ChemInform Abstract: The Molten Salt Synthesis of Large Crystal‐Sized SrTiO3.
Authors: ARENDT R. H. , PASCO W. D.
Published: May 2016

A process is developed for the preparation of SrTiO3 crystallites with a relatively narrow crystal size distribution and an average crystal size ranging from 0.3 to 13.0 μm using molten alkali metal carbonates as reaction medium and SrTiO3 "seed" crystals having the desired size characteristics.
ChemInform Abstract: Electroorganic Synthesis. Reductive Alkylation of Functionalized 1,2‐Dithiole‐3‐thiones.
Authors: DARCHEN A. , BERTHELOT P. , VACCHER C. , VIANA M. N. , DEBAERT M. , BURGOT J. L.
Published: May 2016

The substituted 1,2‐dithiole‐3‐thiones (I) are electrochemically reduced to form the intermediates (II) and (III) which are alkylated, yielding Z‐ and E‐isomers of the unsaturated dithiocarboxylates (V).
ChemInform Abstract: Hydrolysis of Di‐ and Trimesylhydroxylamines and Their Methylated Derivatives.
Authors: BRINK K. , MATTES R.
Published: May 2016

The mesylhydroxylamines (I)‐(III) are treated with basic, neutral, and acidic aqueous solutions.
ChemInform Abstract: Reactivity Enhancement Through Strain and Electronic Effects: α‐Heterocyclopropylideneacetates as Powerful Michael Acceptors.
Authors: SEYED‐MAHDAVI F. , TEICHMANN S. , DE MEIJERE A.
Published: May 2016

The α‐chlorocyclopropylideneacetate (I) is substituted to form the phenylselenenyl derivative (IIa) which can be converted to the sulfides (IIb) and (IIc).
ChemInform Abstract: Acyclic Stereoselection. Part 38. Influence of Enolate Geometry on the Stereochemistry of Michael Additions of Ketone Enolates to α,β‐Unsaturated Ketones.
Authors: OARE D. A. , HEATHCOCK C. H.
Published: May 2016

The lithioenolates (I) react with the unsaturated ketones (II) to give a mixture of the isomers (III) and (IV).
ChemInform Abstract: New Heterocycles Derived from a Simultaneous Substitution and Reductive Acetylation of 2,5‐Dihydroxy‐1,4‐benzoquinone by N‐Containing Heterocycles.
Authors: FARFAN N. , ORTEGA E. , CONTRERAS R.
Published: May 2016

Condensation reaction of 2,5‐dihydroxy‐1,4‐benzoquinone (II) with the pyridines (I) or acridine (IV) in acetic anhydride leads to the formation of the tetraacetates (III) or (V).
ChemInform Abstract: Methyl Shifts in 1,4‐Dipoles from Sulfonyl Isocyanates and Ketene O,N‐Acetals.
Authors: SCHAUMANN E. , MARR T. , NIMMESGERN H. , SIEVEKING S.
Published: May 2016

At low temp., sulfonyl isocyanates (I) react with ketene O,N‐acetals (II) to give 1,4‐dipoles (III).