bluuebunny/crossref_metadata_2025_split huggingface dataset:
ChemInform Abstract: High‐Pressure Synthesis and Ferrimagnetic Ordering of the B‐Site‐Ordered Cubic Perovskite Pb2FeOsO6.
Authors: Long Youwen , et al.  
Published: November 2016

AbstractThe title compound is prepared by solid state reaction from mixtures of PbO, PbO2, Fe2O3, and OsO3 in the ratio of 3:1:1:2 (Pt capsule, 8 GPa, 1673 K, 30 min).
ChemInform Abstract: Rhodium(I)‐Catalyzed Diastereoselective Cycloisomerization of Enynes with Tethered (S)‐2‐Methyl‐2‐propanesulfinyl Imine.
Authors: Oonishi Yoshihiro , Hato Yoshio , Sato Yoshihiro 
Published: November 2016

AbstractTitle imines such as (I), (V), and (VII) react in the presence of chiral Rh(I) catalysts [cf.
ChemInform Abstract: Desymmetrization of Acid Anhydride with Asymmetric Esterification Catalyzed by Chiral Phosphoric Acid.
Authors: Yamada Ken‐ichi , Oonishi Akinori , Kuroda Yusuke , Harada Shingo , Kiyama Hiroki , Yamaoka Yousuke , Takasu Kiyosei 
Published: November 2016

AbstractUsing 2,2‐diphenylethanol or diphenylmethanol as the nucleophile various σ‐symmetric carboxylic acid anhydrides are transformed in high yields and with high enantioselectivity into the corresponding half‐esters.
ChemInform Abstract: Decarboxylative/Sonogashira‐Type Cross‐Coupling Using PdCl2(Cy*Phine)2.
Authors: Yang Yong , Lim Yee Hwee , Robins Edward G. , Johannes Charles W. 
Published: November 2016

AbstractThe PCYP‐catalyzed decarboxylative cross‐coupling of chlorides (I), (IV), and (VIII) with 3‐substituted propiolic acids (II) gives rise to unsymmetrically disubstituted alkynes (III), (V), and (IX) in high yields.
ChemInform Abstract: Fluorodecarboxylation for the Synthesis of Trifluoromethyl Aryl Ethers.
Authors: Zhang Qing‐Wei , Brusoe Andrew T. , Mascitti Vincent , Hesp Kevin D. , Blakemore David C. , Kohrt Jeffrey T. , Hartwig John F. 
Published: November 2016

AbstractThe synthesis of mono‐, di‐, and trifluoromethyl aryl ethers by a newly developed fluorodecarboxylation method is reported.
ChemInform Abstract: Facile One‐Pot Synthesis of Unsymmetrical Ureas, Carbamates, and Thiocarbamates from Cbz‐Protected Amines.
Authors: Kim Hee‐Kwon , Lee Anna 
Published: November 2016

AbstractA mild method for the in‐situ‐generation of isocyanates from various Cbz‐protected aryl or alkyl amines is described which further react with a broad range of functionalized amines, alcohols or thiols to form the title products in generally high yield.
ChemInform Abstract: Rhodium(I)‐Catalyzed Benzannulation of Heteroaryl Propargylic Esters: Synthesis of Indoles and Related Heterocycles.
Authors: Li Xiaoxun , Xie Haibo , Fu Xiaoning , Liu Ji‐tian , Wang Hao‐yuan , Xi Bao‐min , Liu Peng , Xu Xiufang , Tang Weiping 
Published: November 2016

AbstractA diverse range of indoles, benzofurans, benzothiophenes, carbazoles, and dibenzofurans is efficiently prepared which may contain functional groups prone to further derivatization.
ChemInform Abstract: Gold(I)‐Catalyzed N‐Desulfonylative Amination versus N‐to‐O 1,5‐Sulfonyl Migration: A Versatile Approach to 1‐Azabicycloalkanes.
Authors: Miaskiewicz Solene , Gaillard Boris , Kern Nicolas , Weibel Jean‐Marc , Pale Patrick , Blanc Aurelien 
Published: November 2016

AbstractVarious N‐sulfonyl protected 1‐azetidine‐2‐alkyn‐1‐ones are transformed in a gold(I)‐catalyzed N‐desulfonylation in the presence of an external O‐nucleophile to deliver 1‐azabicyclo[3.2.0]heptenes in high yields.
ChemInform Abstract: A One‐Pot Synthesis of N‐Aryl‐2‐oxazolidinones and Cyclic Urethanes by the Lewis Base Catalyzed Fixation of Carbon Dioxide into Anilines and Bromoalkanes.
Authors: Niemi Teemu , Perea‐Buceta Jesus E. , Fernandez Israel , Hiltunen Otto‐Matti , Salo Vili , Rautiainen Sari , Raeisaenen Minna T. , Repo Timo 
Published: November 2016

AbstractThe single‐operation method offers access to five‐, six‐ and even elusive seven‐membered cyclic urethanes in moderate to high yields.
ChemInform Abstract: Synthesis of α‐Sulfenyl Monoketones via a Metal‐Free Oxidative Cross Dehydrogenative Coupling (CDC) Reaction.
Authors: Varun Begur Vasanthkumar , Gadde Karthik , Prabhu Kandikere Ramaiah 
Published: November 2016

AbstractA metal‐free, convenient one‐step strategy is presented proceeding at ambient temperature via a cross‐dehydrogenative coupling of benzoxazole‐thiones or bis(benzothiazoyl)disulfides.
ChemInform Abstract: Synthesis of Novel 1,2,3‐Triazole/Isoxazole‐Functionalized Imidazo[4,5‐b]pyridin‐2(3H)‐one Derivatives, Their Antimicrobial and Anticancer Activity.
Authors: Banda Veeraswamy , Gautham Santhosh Kumar , Pillalamarri Sambasiva Rao , Chavva Kurumurthy , Banda Narsaiah 
Published: November 2016

AbstractThe title compounds show no significant antimicrobial or anticancer activities.
ChemInform Abstract: The Amide C—N Bond of Isatins as the Directing Group and the Internal Oxidant in Ru‐Catalyzed C—H Activation and Annulation Reactions: Access to 8‐Amido Isocoumarins.
Authors: Kaishap Partha Pratim , Sarma Bipul , Gogoi Sanjib 
Published: November 2016

AbstractA broad spectrum of target compounds is available following the 3‐component protocol shown (mechanism).
ChemInform Abstract: Synthesis of 3‐Iodoquinolines by Copper‐Catalyzed Tandem Annulation from Diaryliodoniums, Nitriles, and 1‐Iodoalkynes.
Authors: Wang Xuesong , Wang Xingyong , Huang Dayun , Liu Chulong , Wang Xinyan , Hu Yuefei 
Published: November 2016

AbstractThe method allows the synthesis of various substituted target compounds.
ChemInform Abstract: Ionic Liquid‐Promoted Multicomponent Synthesis of Fused Tetrazolo[1,5‐a]pyrimidines as α‐Glucosidase Inhibitors.
Authors: Suresh Lingala , Onkara P. , Kumar P. Sagar Vijay , Pydisetty Y. , Chandramouli G. V. P. 
Published: November 2016

AbstractAmong the synthesized compounds (IV), compounds (IVb) and (IVc) are found to be active showing comparable inhibitory potency with acarbose.
ChemInform Abstract: Cooperative N‐Heterocyclic Carbene/Palladium‐Catalyzed Enantioselective Umpolung Annulations.
Authors: Guo Chang , Fleige Mirco , Janssen‐Mueller Daniel , Daniliuc Constantin G. , Glorius Frank 
Published: November 2016

AbstractThe regioselective title reaction between vinyl benzoxazinanones and aryl, alkenyl or alkyl substituted enals delivers benzazepine derivatives in high yields, with high diastereo‐ and excellent enantioselectivities.
ChemInform Abstract: Highly Selective Phosphinylphosphination of Alkenes with Tetraphenyldiphosphine Monoxide.
Authors: Sato Yuki , Kawaguchi Shin‐ichi , Nomoto Akihiro , Ogawa Akiya 
Published: November 2016

AbstractContrary to tetraphenyldiphosphine, which does not add to C—C double bonds efficiently, tetraphenyldiphosphine monoxide (II) can engage in a radical addition to various alkenes and even alkynes.
ChemInform Abstract: Enhanced Hydrogen Storage Properties of LiBH4 Generated Using a Porous Li3BO3 Catalyst.
Authors: Ma Yufei , Li Yuan , Liu Ting , Zhao Xin , Zhang Lu , Han Shumin , Wang Yijing 
Published: November 2016

AbstractLi3BO3 is prepared by ball milling of an equimolar mixture of LiH and LiBO2 followed by vacuum heating of the pelletized material (600 °C, 2 h).
Adsorption of benzene, toluene, and xylene (BTX) from binary aqueous solutions using commercial organoclay
Authors: Stofela Sara Karoline Figueiredo , de Andrade Júlia Resende , Vieira Melissa Gurgel Adeodato 
Published: November 2016

AbstractOrganoclays are promising alternative adsorbents for the removal of organic pollutants. The aromatic hydrocarbons benzene, toluene, and xylene (BTX) are typical petroleum contaminants found simultaneously in natural leaking. Therefore, investigations on multi‐component adsorption become essential to study this issue. Based on that, in the present study, a commercial organoclay from Brazil has been tested for its adsorption potential for binary aqueous mixtures of BTX. Kinetic and equilibrium batch adsorption experiments were performed to elucidate the differences in the affinities between the BTX contaminants and the organoclay. The kinetic study indicated that for benzene‐toluene, benzene‐xylene, and toluene‐xylene systems the contaminants preferentially adsorbed were toluene, p‐xylene, and p‐xylene (in the beginning of the assays), respectively. The affinity for the organoclay might be related to physicochemical properties of BTX. In the adsorption equilibrium studies, the obtained BTX isotherms were all linear, characterized by constant adsorption affinities. The observed differences between BTX adsorption capacities at equilibrium for mono and bi‐component systems confirmed the competition for adsorption sites of the organoclay.
A velocity tracking approach for the data assimilation problem in blood flow simulations
Authors: Tiago J. , Guerra T. , Sequeira A. 
Published: November 2016

AbstractSeveral advances have been made in data assimilation techniques applied to blood flow modeling. Typically, idealized boundary conditions, only verified in straight parts of the vessel, are assumed. We present a general approach, on the basis of a Dirichlet boundary control problem, that may potentially be used in different parts of the arterial system. The relevance of this method appears when computational reconstructions of the 3D domains, prone to be considered sufficiently extended, are either not possible, or desirable, because of computational costs. On the basis of taking a fully unknown velocity profile as the control, the approach uses a discretize then optimize methodology to solve the control problem numerically. The methodology is applied to a realistic 3D geometry representing a brain aneurysm. The results show that this data assimilation approach may be preferable to a pressure control strategy and that it can significantly improve the accuracy associated to typical solutions obtained using idealized velocity profiles.
A Family of Amphiphilic Cyclodextrin Liquid Crystals Governed by Dipole–Dipole Interactions
Authors: Champagne Pier‐Luc , Ester David , Ward Sandra , Williams Vance E. , Ling Chang‐Chun 
Published: November 2016

AbstractA novel family of amphiphilic cyclodextrin(CD)‐based liquid crystals that bear O‐acetylated oligoethylene glycol chains at the secondary face is reported. Unlike most of the previously reported liquid crystals (LC) based on chemically modified CDs, which depend on H‐bonding as the primary intermolecular forces, the present CD derivatives self‐assemble into highly ordered smectic liquid crystal phases via the weaker dipole–dipole intermolecular interactions. The obtained materials are found to display much improved properties such as improved thermostability, reduced clearing temperatures, and better fluidity. The present work opens up new possibilities to design CD‐based LC materials.
Antibiotic effects against periodontal bacteria in organ cultured tissue
Authors: Takeshita Masaaki , Haraguchi Akira , Miura Mayumi , Hamachi Takafumi , Fukuda Takao , Sanui Terukazu , Takano Aiko , Nishimura Fusanori 
Published: November 2016

AbstractMechanical reduction of infectious bacteria by using physical instruments is considered the principal therapeutic strategy for periodontal disease; addition of antibiotics is adjunctive. However, local antibiotic treatment, combined with conventional mechanical debridement, has recently been shown to be more effective in periodontitis subjects with type 2 diabetes. This suggests that some bacteria may invade the inflamed inner gingival epithelium, and mechanical debridement alone will be unable to reduce these bacteria completely. Therefore, we tried to establish infected organ culture models that mimic the inner gingival epithelium and aimed to see the effects of antibiotics in these established models. Mouse dorsal skin epithelia were isolated, and periodontal bacteria were injected into the epithelia. Infected epithelia were incubated with test antibiotics, and colony‐forming ability was evaluated. Results indicated that effective antibiotics differed according to injected bacteria and the bacterial combinations tested. Overall, in organ culture model, the combination of amoxicillin or cefdinir and metronidazole compensate for the effects of less effective bacterial combinations on each other. This in vitro study would suggest effective periodontal treatment regimens, especially for severe periodontitis.
Persistent Hydrogen Production by the Photo‐Assisted Microbial Electrolysis Cell Using a p‐Type Polyaniline Nanofiber Cathode
Authors: Jeon Yongwon , Kim Sunghyun 
Published: November 2016

AbstractA microbial electrolysis cell, though considered as a promising, environmentally friendly technology for hydrogen production, suffers from concomitant production of methane. The high hydrogen/methane ratio at the initial operation stage decreases with time. Here we report for the first time the photoassisted microbial electrolysis cell (MEC) for persistent hydrogen production using polyaniline nanofibers as a cathode. Under 0.8 V external bias and laboratory fluorescent light illumination in a single‐chamber MEC, continuous hydrogen production from acetate at a rate of 1.78 m
3 m−3 d−1 with 79.2 % overall hydrogen recovery was achieved with negligible methane formation for six months. Energy efficiencies based on input electricity as well as input electricity plus substrate were 182 and 66.2 %, respectively. This was attributed to the p‐type‐semiconductor characteristics of polyaniline nanofibers in which photoexcited electrons are used to reduce protons at the surface and holes are reduced with electrons originating from acetate oxidation at the anode. This method can be extended to microbial wastewater treatment for hydrogen production.
An In‐Depth Understanding of Biomass Recalcitrance Using Natural Poplar Variants as the Feedstock
Authors: Meng Xianzhi , Pu Yunqiao , Yoo Chang Geun , Li Mi , Bali Garima , Park Doh‐Yeon , Gjersing Erica , Davis Mark F. , Muchero Wellington , Tuskan Gerald A. , Tschaplinski Timothy J. , Ragauskas Arthur J. 
Published: November 2016

AbstractIn an effort to better understand the biomass recalcitrance, six natural poplar variants were selected as feedstocks based on previous sugar release analysis. Compositional analysis and physicochemical characterizations of these poplars were performed and the correlations between these physicochemical properties and enzymatic hydrolysis yield were investigated. Gel permeation chromatography (GPC) and 13C  solid state NMR were used to determine the degree of polymerization (DP) and crystallinity index (CrI) of cellulose, and the results along with the sugar release study indicated that cellulose DP likely played a more important role in enzymatic hydrolysis. Simons’ stain revealed that the accessible surface area of substrate significantly varied among these variants from 17.3 to 33.2 mg g
as reflected by dye adsorption, and cellulose accessibility was shown as one of the major factors governing substrates digestibility. HSQC and 31P NMR analysis detailed the structural features of poplar lignin variants. Overall, cellulose relevant factors appeared to have a stronger correlation with glucose release, if any, than lignin structural features. Lignin structural features, such as a phenolic hydroxyl group and the ratio of syringyl and guaiacyl (S/G), were found to have a more convincing impact on xylose release. Low lignin content, low cellulose DP, and high cellulose accessibility generally favor enzymatic hydrolysis; however, recalcitrance cannot be simply judged on any single substrate factor.
Microporous Organic Polymers Based on Hyper‐Crosslinked Coal Tar: Preparation and Application for Gas Adsorption
Authors: Gao Hui , Ding Lei , Bai Hua , Li Lei 
Published: November 2016

AbstractHyper‐crosslinked polymers (HCPs) are promising materials for gas capture and storage, but high cost and complicated preparation limit their practical application. In this paper, a new type of HCPs (CTHPs) was synthesized through a one‐step mild Friedel–Crafts reaction with low‐cost coal tar as the starting material. Chloroform was utilized as both solvent and crosslinker to generate a three‐dimensional crosslinked network with abundant micropores. The maximum BET surface area of the prepared CTHPs could reach up to 929 m2 g−1. Owing to the high affinity between the heteroatoms on the coal‐tar building blocks and the CO2 molecules, the adsorption capacity of CTHPs towards CO2 reached up to 14.2 wt % (1.0 bar, 273 K) with a high selectivity (CO2/N2=32.3). Furthermore, the obtained CTHPs could adsorb 1.27 wt % H2 at 1.0 bar and 77.3 K, and also showed capacity for the capture of high organic vapors at room temperature. In comparison with other reported porous organic polymers, CTHPs have the advantages of low‐cost, easy preparation, and high gas‐adsorption performance, making them suitable for mass production and practical use in the future.
Fast Track to Molar‐Mass Distributions of Technical Lignins
Authors: Sulaeva Irina , Zinovyev Grigory , Plankeele Jean‐Michel , Sumerskii Ivan , Rosenau Thomas , Potthast Antje 
Published: November 2016

AbstractTechnical lignins (waste products obtained from wood pulping or biorefinery processes) have so far required lengthy analysis procedures and different eluents for molar‐mass analysis by gel permeation chromatography (GPC). This challenge has become more pressing recently since attempts to utilize lignins have increased, leading to skyrocketing numbers of samples to be analyzed. A new approach, which uses the eluent DMSO/LiBr (0.5 % w/v) and converts lignosulfonate salts into their acidic form before analysis, overcomes these limitations by enabling measurement of all kinds of lignins (kraft, organosolv, soda, lignosulfonates) in the same size‐exclusion chromatography (SEC) system without the necessity of prior time‐consuming derivatization steps. In combination with ultra‐performance liquid chromatography (UPLC), analysis times are shortened to one tenth of classical lignin GPC. The new approach is presented, along with a comparison of GPC and UPLC methods and a critical discussion of the analytical parameters.
Full range analog Wheatstone bridge‐based automatic circuit for differential capacitance sensor evaluation
Authors: Ferri G. , Stornelli V. , Parente F. R. , Barile G. 
Published: November 2016

SummaryIn this paper, an integrable novel fully analog Wheatstone bridge‐based interface for differential capacitance estimation is presented. Its working principle takes advantage of the modified De‐Sauty AC bridge configuration being employed only by two capacitors and two resistors. A feedback loop controls one of the resistors (e.g. a voltage‐controlled resistor), to obtain an evaluation of the differential capacitance variation on a full range, thanks to a general but very simple formula that considers both the ‘auto‐balancing’ and the bridge ‘out‐of‐equilibrium’ ranges. The proposed interface shows a satisfactory accuracy, being the percentage relative error within 0.45% for the experimental results. Copyright © 2016 John Wiley & Sons, Ltd.
Single variable expressions for the efficiency of a reciprocal power transfer system
Authors: Minnaert Ben , Stevens Nobby 
Published: November 2016

SummaryThe analytical expressions for the efficiency of a reciprocal power transfer system as a function of multiple parameters, that is, the elements of its impedance matrix, already exist. In this work, closed expressions for this efficiency as a function of a single parameter, that is, the extended kQ factor, are derived. This is done for three representative configurations: (i) maximum efficiency; (ii) maximum power transfer; and (iii) conjugate image set‐up. The derived formulas are useful for the design and optimization of different types of power transfer systems. Copyright © 2016 John Wiley & Sons, Ltd.
Negative pressure wound therapy inhibits inflammation and upregulates activating transcription factor‐3 and downregulates nuclear factor‐κB in diabetic patients with foot ulcerations
Authors: Wang T. , He R. , Zhao J. , Mei J.C. , Shao M.Z. , Pan Y. , Zhang J. , Wu H.S. , Yu M. , Yan W.C. , Liu L.M. , Liu F. , Jia W.P. 
Published: November 2016

AbstractBackgroundNegative pressure wound therapy (NPWT) is one of the most important treatments for diabetic foot, but the underlying mechanisms of its benefits still remain elusive. This study aims to evaluate the inflammatory signals involved in the effects of negative pressure therapy on diabetic foot ulcers.MethodsWe enrolled 22 patients with diabetic foot ulceration, 11 treated with NPWT and the other 11 treated with traditional debridement. All patients were treated and observed for 1 week. Granulation tissues were harvested and analyzed in both groups, and then were histologically and immunohistochemically analyzed. Enzyme‐linked immunosorbent assay, Western blot analysis, and real‐time PCR were performed to evaluate the expression of interleukin‐6 (IL‐6), tumor necrosis factor α (TNF‐α), inducible nitric oxide synthase (iNOS), nuclear factor‐κB (NF‐κB) p65, IkB‐α, and activating transcription factor‐3 (ATF‐3).ResultsAfter 7 days of treatment, NPWT could obviously promote diabetic wound healing because of the mild inflammation and the dense cell‐deposited matrix. Meanwhile, NPWT significantly decreased the expression of TNF‐α, IL‐6, and iNOS (all P < .05). The result of Western blotting and real‐time PCR indicated that NPWT obviously decreased the level of IkB‐α and NF‐κB p65, and increased the level of ATF‐3 (all P < .05).ConclusionNPWT exerts an anti‐inflammatory effect, possibly through the suppression of proinflammatory enzymes and cytokines resulting from IkB‐α inhibition and ATF‐3 activation, which may prevent the activation of the NF‐κB pathway in human diabetic foot wounds.
Oxytocin mediated behavior in invertebrates: An evolutionary perspective
Authors: Lockard Meghan A. , Ebert Margaret S. , Bargmann Cornelia I. 
Published: November 2016

ABSTRACTThe molecular and functional conservation of oxytocin‐related neuropeptides in behavior is striking. In animals separated by at least 600 million years of evolution, from roundworms to humans, oxytocin homologs play critical roles in the modulation of reproductive behavior and other biological functions. Here, we review the roles of oxytocin in invertebrate behavior from an evolutionary perspective. We begin by tracing the evolution of oxytocin through the invertebrate animal lineages, and then describe common themes in invertebrate behaviors that are mediated by oxytocin‐related peptides, including reproductive behavior, learning and memory, food arousal, and predator/prey relationships. Finally, we discuss interesting future directions that have recently become experimentally tractable. Studying oxytocin in invertebrates offers precise insights into the activity of neuropeptides on well‐defined neural circuits; the principles that emerge may also be represented in the more complex vertebrate brain. © 2016 Wiley Periodicals, Inc. Develop Neurobiol 77: 128–142, 2017