bluuebunny/crossref_metadata_2025_split huggingface dataset:
ChemInform Abstract: Copper/Silver‐Mediated Cascade Reactions for the Construction of 2‐Sulfonylbenzo[b]furans from trans‐2‐Hydroxycinnamic Acids and Sodium Sulfinates.
Authors: Li Hong‐Shuang , Liu Gang 
Published: June 2014

AbstractAn unprecedented synthetic protocol for the efficient construction of 2‐sulfonylbenzofurans via a protodecarboxylation/C—S bond formation/C—O bond formation cascade is developed.
ChemInform Abstract: Gold‐Catalyzed Intermolecular Oxidation of Chiral Homopropargyl Sulfonamides: A Reliable Access to Enantioenriched Pyrrolidin‐3‐ones.
Authors: Shu Chao , Li Long , Yu Yong‐Fei , Jiang Shuang , Ye Long‐Wu 
Published: June 2014

AbstractAttempts upon expansion of the methodology to internal alkynes fail.
ChemInform Abstract: Novel, Recyclable, and Thermally Stable Task‐Specific Ionic Liquid (TBA Acetate) Medium/Catalyst for the Synthesis of Indolylidinecyclic‐1,3‐ and ‐1,4‐diketones.
Authors: Riyaz Sd. , Indrasena A. , Naidu A. , Dubey P. 
Published: June 2014

AbstractAn efficient and environmentally benign protocol for the synthesis of thiazolylideneindoles (III), related cyclohexane (V) and barbituric acid derivatives (VII) is described.
ChemInform Abstract: Construction of Pyrrolidinyl Spirooxindoles via a 1,3‐Dipolar Cycloaddition Reaction of (E)‐N‐Boc‐3‐Alkylidene‐indolin‐2(3H)ones with Azomethine Ylides.
Authors: Yu Zhang‐Biao , Liu Xiong‐Li , Pan Bo‐Wen , Chen Bin , Zhou Ying , Wang Hua‐Lin 
Published: June 2014

AbstractSome of the new compounds (IV) exhibit moderate antibacterial activity against S.
ChemInform Abstract: Hydrated Ferric Sulfate Catalyzed Synthesis of 3‐[(Alkyl/Arylthio)(aryl)methyl]‐1H‐indole Derivatives Through One‐Pot Reaction.
Authors: Dar Ajaz A. , Ali Shahzad , Khan Abu T. 
Published: June 2014

AbstractA one‐pot three‐component reaction of indoles, aromatic aldehydes, and a range of mercaptans in the presence of hydrated ferric sulfate as the catalyst gives 3‐substituted indoles (IV) and (VII) in moderate yields.
ChemInform Abstract: Ni(II)—Salt Catalyzed Activation of Primary Amine‐sp3Cα—H and Cyclization with 1,2‐Diketone to Tetrasubstituted Imidazoles.
Authors: Samanta Srikanta , Roy Dipanwita , Khamarui Saikat , Maiti Dilip K. 
Published: June 2014

AbstractBenzylic and aliphatic amines can be applied in the reaction requiring different catalysts.
ChemInform Abstract: Triazole‐Substituted Nitroarene Derivatives: Synthesis, Characterization, and Energetic Studies.
Authors: Kommu Nagarjuna , Ghule Vikas D. , Kumar A. Sudheer , Sahoo Akhila K. 
Published: June 2014

AbstractTriazole substituted nitroarenes are prepared through nitration of N‐aryltriazoles or via base mediated coupling of nitro‐containing aryl chlorides with triazoles.
ChemInform Abstract: Synthesis and Antioxidant Activity of Styrylsulfonylmethyl 1,3,4‐Oxadiazoles, Pyrazolyl/Isoxazolyl‐1,3,4‐oxadiazoles.
Authors: Mallikarjuna Reddy Guda , Muralikrishna Akkarapalli , Padmavathi Venkatapuram , Padmaja Adivireddy , Krishna Tilak Thandaiah , Appa Rao Chippada 
Published: June 2014

AbstractCompound (IIIb) is found to exhibit slightly higher antioxidant activity than the standard ascorbic acid.
ChemInform Abstract: An Efficient Strategy for the Synthesis of Polysubstituted Chromeno[4,3‐b]pyrrolidine Derivatives.
Authors: Tian Li , Xu Guo‐Qiang , Li Yun‐Han , Liang Yong‐Min , Xu Peng‐Fei 
Published: June 2014

AbstractThe reaction proceeds with excellent yields and nearly complete enantioselectivities (<99% e.e.) and can be carried out on a multi‐gram scale.
ChemInform Abstract: Synthesis of 6‐Aryl‐ and 5‐Aroylcomanic Acids from 5‐Aroyl‐2‐carbethoxy‐4‐pyrones via a Deformylative Rearrangement and Ring‐Opening/Ring‐Closure Sequence.
Authors: Obydennov Dmitrii L. , Roeschenthaler Gerd‐Volker , Sosnovskikh Vyacheslav Ya. 
Published: June 2014

Abstract6‐Arylcomanic acids (IV) are prepared via an acid‐catalyzed deformylative rearrangement of substrate (III).
ChemInform Abstract: N‐Heterocyclic Carbene‐Catalyzed Cascade Reaction of 2‐Aroylvinylcinnamaldehydes with 2‐Aroylvinylchalcones: Rapid Assembly of Six Contiguous Stereogenic Centers with High Diastereoselectivity.
Authors: Fan Xing‐Wen , Cheng Ying 
Published: June 2014

AbstractAmong 32 possible diastereomers, derivative (II) is formed as the main product in exceptional good yields.
ChemInform Abstract: CuFe2O4 Nanoparticles: A Magnetically Recoverable and Reusable Catalyst for the Synthesis of Coumarins via Pechmann Reaction in Water.
Authors: Baghbanian Seyed Meysam , Farhang Maryam 
Published: June 2014

AbstractThe catalyst can be reused up to six times without significant loss of activity.
ChemInform Abstract: Exploring O‐Stannyl Ketyl and Acyl Radical Cyclizations for the Synthesis of γ‐Lactone‐Fused Benzopyrans and Benzofurans.
Authors: Santoso Helen , Casana Myriam I. , Donner Christopher D. 
Published: June 2014

AbstractO‐Stannyl ketyl or acyl radical cyclization of benzaldehyde precursors (I), (IV), and (VIII) followed by oxidation provides access to pyrano‐ and furanobenzoquinone systems (VII) and (X).
ChemInform Abstract: Synthesis and Anti‐Toxoplasmosis Activity of 4‐Arylquinoline‐2‐carboxylate Derivatives.
Authors: McNulty James , Vemula Ramesh , Bordon Claudia , Yolken Robert , Jones‐Brando Lorraine 
Published: June 2014

AbstractThe presented one step procedure allows access to 12 differently substituted 4‐arylquinoline‐2‐carboxylates.
ChemInform Abstract: Synthesis of Optically Active Thromboxane A2 and Leukotriene D4 Receptor Antagonists.
Authors: Kawazoe Souichirou , Okamoto Yoshinori , Yokota Masaki , Kubota Hirokazu , Naito Ryo , Takeuchi Makoto , Ieda Shigeru , Okada Minoru , Oriyama Takeshi 
Published: June 2014

AbstractBoth the (+)‐ and (‐)‐enantiomers of title compound (I) are synthesized.
ChemInform Abstract: Structural Analysis and Reactivity of Unusual Tetrahedral Intermediates Enabled by SmI2‐Mediated Reduction of Barbituric Acids: Vinylogous N‐Acyliminium Additions to α‐Hydroxy‐N‐acyl‐carbamides.
Authors: Szostak Michal , Sautier Brice , Procter David J. 
Published: June 2014

AbstractThe substrate (I) is prepared via chemoselective electron transfer using SmI2·H2O reagent.
ChemInform Abstract: Efficient Synthesis of 1,3,5‐Benzotriazocines from Tetrachloro‐2‐aza‐1,3‐dienes.
Authors: Vasylyshyn Roman Y. , Demydchuk Bogdan A. , Rusanov Eduard B. , Brovarets Vladimir S. 
Published: June 2014

AbstractHitherto unknown benzotriazocines (III) are synthesized on a preparative scale via regioselective cyclocondensation of easily accessible azadienes (I) with 2‐aminomethylaniline.
ChemInform Abstract: Synthesis of Water‐Soluble Vinyl Selenides and Their High Glutathione Peroxidase (GPx)‐Like Antioxidant Activity.
Authors: Braverman Samuel , Cherkinsky Marina , Kalendar Yulia , Jana Ranjan , Sprecher Milon , Goldberg Israel 
Published: June 2014

AbstractDepending on the oxidation conditions, conveniently prepared novel bis(2‐halo‐3‐hydroxypropylene)selenides (I), (IV), and (VII) can be transformed into the corresponding Se‐mono‐ or dioxides (II) and (III) or seleno‐spiro compounds (V), (VIII), and (XIII).
A BINOL Based Fluorescence Sensor for Distinction of D‐Glucose
Authors: Xu Bangyu , Hou Jiting , Li Kun , Lu Zhengwei , Yu Xiaoqi 
Published: June 2014

AbstractA saccharide fluorescent receptor based on 1,1′‐binaphthol was developed. The boronic acids groups are directly attached to the 3,3′‐positions of BINOL which acted as probes to saccharides. The methyl protected receptor R1 showed better response to D‐fructose compared to other saccharides in the fluorescence quenching experiment. To improve the selectivity of D‐glucose, the triethylene glycol protected receptor R2 was developed. Receptor R2 has a better water‐solubility than R1 that can be applied in completely aqueous environment. With receptor R2, D‐glucose has a different response to other saccharides that can be useful for the distinction of D‐glucose.
Development of Cyclobutene‐ and Cyclobutane‐Functionalized Fatty Acids with Inhibitory Activity against Mycobacterium tuberculosis
Authors: Sittiwong Wantanee , Zinniel Denise K. , Fenton Robert J. , Marshall Darrell D. , Story Courtney B. , Kim Bohkyung , Lee Ji‐Young , Powers Robert , Barletta Raúl G. , Dussault Patrick H. 
Published: June 2014

AbstractEleven fatty acid analogues incorporating four‐membered carbocycles (cyclobutenes, cyclobutanes, cyclobutanones, and cyclobutanols) were investigated for the ability to inhibit the growth of Mycobacterium smegmatis (Msm) and Mycobacterium tuberculosis (Mtb). A number of the analogues displayed inhibitory activity against both mycobacterial species in minimal media. Several of the molecules displayed potent levels of inhibition against Mtb, with MIC values equal to or below those observed with the anti‐tuberculosis drugs D‐cycloserine and isoniazid. In contrast, two of the analogues that display the greatest activity against Mtb failed to inhibit E. coli growth under either set of conditions. Thus, the active molecules identified herein may provide the basis for the development of anti‐mycobacterial agents against Mtb.
Poly‐benzylic Ammonium Chloride Resins as Solid Catalysts for Fructose Dehydration
Authors: Teong Siew Ping , Yi Guangshun , Cao Xueqin , Zhang Yugen 
Published: June 2014

Abstract5‐hydroxymethylfurfural (HMF) is one of the most promising platform molecules, and can be converted into a variety of interesting chemicals. The production of HMF is essentially targeted at bulk chemicals downstream, such as chemicals for the fuels and plastics industries. One critical challenge in HMF production processes is the link to further value‐adding reactions in a simple and efficient way (e.g., fewer isolation and purification steps). Herein, a novel poly‐benzyl ammonium chloride (PBnNH3Cl) resin is developed as a highly efficient and stable catalyst for dehydration of carbohydrates into HMF. In the isopropanol system, PBnNH3Cl produces high purity HMF that is suitable as feedstock for oxidation to 2,5‐furandicarboxylic acid (FDCA). The excellent catalytic properties together with its easy synthesis, low cost, and nontoxic nature make this poly‐ammonium resin a promising catalyst for the development of new and efficient processes for biomass‐based chemicals.
Childhood loss of control eating over five‐year follow‐up
Authors: Hilbert Anja , Brauhardt Anne 
Published: June 2014

ABSTRACTObjectiveEmerging prospective evidence from mixed samples, mostly covering short‐term follow‐up periods, suggests that childhood loss of control (LOC) eating predicts significant impairment in mental and physical health. This study sought to investigate the natural course of childhood LOC eating over the long term and in relation to binge‐eating disorder (BED) diagnosis, psychopathology, and body weight trajectory in the community.MethodA total of 60 children (8–13 years) with LOC eating within the past 3 months and 60 demographically matched children without LOC history were assessed with the Eating Disorder Examination adapted for Children and self‐report questionnaires over a 5.5 year follow‐up period. Missing data were imputed.ResultsOver follow‐up, 38.3% of children showed persistent LOC eating, and 28.3% revealed an onset of LOC eating. Persistent LOC eating significantly predicted onset of partial‐/full‐syndrome BED at follow‐up. Negative prognostic effects on eating disorder psychopathology, depressive symptoms, and body mass index were nonsignificant.DiscussionThe results indicate a moderate stability of LOC eating over the long term. LOC eating, especially if stable, was suggested as a variable risk factor of clinically relevant eating disturbances. In contrast, a prognostic value for psychopathology and body mass index was not confirmed. © 2014 Wiley Periodicals, Inc. (Int J Eat Disord 2014; 47:758–761)
Early adversity, personal resources, body dissatisfaction, and disordered eating
Authors: Vartanian Lenny R. , Smyth Joshua M. , Zawadzki Matthew J. , Heron Kristin E. , Coleman Sulamunn R.M. 
Published: June 2014

ABSTRACTObjectiveEarly adverse experiences have been associated with disordered eating, but the mechanisms underlying that association are not well understood. The purpose of this study is to test a structural equation model in which early adversity is associated with disordered eating via intrapersonal resources, interpersonal resources, and body dissatisfaction.MethodFemale university students (n = 748) completed a series of questionnaires online, including measures of early adverse experiences, intrapersonal resources (self‐esteem and personal growth initiative), interpersonal resources (gratitude and social support), body dissatisfaction, and disordered eating and exercising to lose weight.ResultsStructural equation modeling indicated that early adverse experiences were negatively associated with interpersonal and intrapersonal resources. Intrapersonal resources were negatively associated with body dissatisfaction, whereas interpersonal resources were positively associated with body dissatisfaction (although negative bivariate correlations in this latter case suggest possible suppression effects). Finally, body dissatisfaction was associated with a range of disordered eating behaviors and exercise.DiscussionEarly adverse experiences are important to consider in models of disordered eating. The results of this study highlight potential points of early prevention efforts, such as improving personal resources for those who experience early adversity, to help reduce the risk of body dissatisfaction and disordered eating in young women. © 2014 Wiley Periodicals, Inc. (Int J Eat Disord 2014; 47:620–629)
A case of hyperemesis in bulimia nervosa
Authors: Pedrolli Carlo , Sacchi Manuela C. , Togni Michele , Cereda Emanuele 
Published: June 2014

ABSTRACTBulimia nervosa is an eating disorder defined by recurrent episodes of binge eating followed by compensatory behaviors, primarily self‐induced vomiting. Most common complications are due to purge behaviors and are frequently responsible for hospitalization. These include electrolyte disturbances, dehydration, hypovolemia, stomatitis, esophageal diseases, and functional impairment of the colon. However, an obstruction‐like syndrome has never been reported. We report the case of a middle‐age woman suffering from bulimia nervosa and referring at the emergency department with a 7‐day story of hyperemesis responsible for an acute renal failure. During hospitalization, after the most important and common medical causes of hyperemesis were excluded, an upper gastrointestinal endoscopy was performed. The endoscopist reported the presence of an impressive bezoar, which underwent to mechanical fragmentation and biopsy sampling, revealing it was made up exclusively of liquorice wheels. An endoscopy performed few days after showed the complete dissolution of the bezoar, and the patient was discharged without any further gastrointestinal complaint. © 2014 Wiley Periodicals, Inc. (Int J Eat Disord 2015; 48:446–448)
Effects of Solvent Additives on the Crystal Architecture of Supramolecular Conductors Based on Diiodo(ethylenedithio)tetraselenafulvalene and Indium Tetrahalide Anions
Authors: Imakubo Tatsuro , Kobayashi Mitsuaki 
Published: June 2014

AbstractSix new organic conductors were prepared on the basis of the iodine‐bonded π donor diiodo(ethylenedithio)tetraselenafulvalene and indium tetrahalide anions. The utilization of solvent additives made it possible to modify the quality, structure, morphology, and composition of the crystals. Among the additives, the addition of a few drops of water for the electrochemical crystallization induced the in situ transformation of the tetrahedral [InCl4]– anion to the octahedral [InCl4(H2O)2]– anion. Other small solvent molecules, such as methanol or ethanol, worked as well for the crystallization. All new salts include strong and directional iodine‐based halogen bonds, that is, the iodine bond, and the novel supramolecular structures are successfully tailored by characteristic intermolecular interaction. It is also worth noting that the tetrahedral geometry of the counteranion plays a key role in the construction of the solid‐crossing double‐layer structure of the donor molecules, which is observed in the newly prepared InCl4 and [InCl4(H2O)2] salts.
Detailed Geometric and Electronic Structures of a One‐Electron‐Oxidized Ni Salophen Complex and Its Amido Derivatives
Authors: Lecarme Laureline , Chiang Linus , Philouze Christian , Jarjayes Olivier , Storr Tim , Thomas Fabrice 
Published: June 2014

AbstractSquare‐planar nickel(II) complexes of 1,2‐bis(2‐hydroxy‐3,5‐di‐tert‐butylbenzimino)benzene ([1]), 1‐(2‐hydroxy‐3,5‐di‐tert‐butylbenzimino)‐2‐(2‐hydroxy‐3,5‐di‐tert‐butylbenzamido)benzene ([2]–) and 1,2‐bis(2‐hydroxy‐3,5‐di‐tert‐butylbenzamido)benzene ([3]2–) were chemically oxidized by one‐electron to afford nickel–radical species with non‐negligible metal contribution to the singly occupied molecular orbital (SOMO). The X‐ray crystal structure of [1][SbF6]shows an almost symmetric metal coordination sphere and phenoxyl pattern within the ligand framework. The spin population at the nickel ion calculated by DFT (B3LYP) does not evolve monotonically within the series, and the values are 18.7, 19.5, and 42.7 % for [1]+, [2], and [3]–, respectively. Complexes [1]+, [2], and [3]– each exhibit a weak near‐IR (NIR) band at 3600, 4440, and 5900 cm–1, respectively, the origin of which differs. For [1]+, it corresponds to an intervalence charge transfer (IVCT) transition (β‐HOMO → β‐LUMO) typical for delocalized compounds (calcd. 3700 cm–1). For [2], which is a localized radical, it is assigned to an intraligand charge transfer (CT) transition (calcd. 5000 cm–1). Although the CT transition still involves orbitals mainly centered on the ligand, it acquires significant ligand‐to‐metal charge transfer (LMCT) character in the case of [3]– (calcd. 5700 cm–1).
Biotechnologie in Deutschland: Gesetze statt Sonntagsreden
Authors: Bengs Holger , Phan Mai Lan 
Published: June 2014

AbstractDie Biotechbranche stagniert, der Kapitalmarkt für Hightech‐Biotechunternehmen trocknet aus — das Jahr 2013 war durchwachsen für die deutsche Branche. Dennoch werden biotechnische Verfahren beim Wandel zu einer biobasierten Wirtschaft zunehmend wichtiger.
Erweiterte Unsicherheit der Probennahme bestimmen
Authors: Winterstein Michael , Einax Jürgen W. , Prikler Simon , Garvens Hans‐Jürgen 
Published: June 2014

AbstractDie Bestimmung von Probenvorbereitungs‐ und Analysenunsicherheiten gehört inzwischen zu den Standardverfahren in vielen Laboratorien. Allerdings bleibt die Unsicherheit der Probennahme oft außer Acht. Inhomogene Sekundärbrennstoffe, also aus Abfall gewonnene Brennstoffe, zeigen, wie sich mit der Varianzanalyse diese Unsicherheit bestimmen lässt und wie groß der Einfluss der Probennahme auf die Gesamtunsicherheit in den verschiedenen großtechnischen Beprobungsverfahren ist.
Von der Lötrohrpobierkunde zur Inertgastechnik
Authors: Böhme Uwe , Kraushaar Konstantin , Schwarzer Anke 
Published: June 2014

AbstractDie Praktika zur anorganischen Chemie unterlagen bereits vor der Umstellung auf modulare Studiengänge einem steten Wandel. An der TU Bergakademie Freiberg haben sich die Praktikumszeiten allerdings so reduziert, dass Lernstoff entfallen muss. Zudem unterscheiden sich die Vorkenntnisse der Studierenden im Masterstudium erheblich.
Network application profiling with traffic causality graphs
Authors: Asai Hirochika , Fukuda Kensuke , Abry Patrice , Borgnat Pierre , Esaki Hiroshi 
Published: June 2014

SUMMARYA network application profiling framework is proposed that is based on traffic causality graphs (TCGs), representing temporal and spatial causality of flows to identify application programs. The proposed framework consists of three modules: the feature vector space construction using discriminative patterns extracted from TCGs by a graph‐mining algorithm; a feature vector supervised learning procedure in the constructed vector space; and an application identification program using a similarity measure in the feature vector space. Accuracy of the proposed framework for application identification is evaluated, making use of ground truth packet traces from seven peer‐to‐peer (P2P) application programs. It is demonstrated that this framework achieves an overall 90.0% accuracy in application identification. Contributions are twofold: (1) using a graph‐mining algorithm, the proposed framework enables automatic extraction of discriminative patterns serving as identification features; 2) high accuracy in application identification is achieved, notably for P2P applications that are more difficult to identify because of their using random ports and potential communication encryption. Copyright © 2014 John Wiley & Sons, Ltd.
Indices of beta‐cell function: association with diabetes control in patients with type 2 diabetes on stable GLP‐1 agonist treatment
Authors: Behary Preeshila , Godsland Ian F , Baynes Kevin C 
Published: June 2014

AbstractThe aims of this study were to investigate the association between metabolic factors and glycaemic control in patients with type 2 diabetes on glucagon‐like peptide‐1 (GLP‐1) agonists, and explore the physiological reasons for less good glucose control in some patients compared to others.We conducted a cross‐sectional study of 26 patients with type 2 diabetes and HbA1c ranging from 5.7–11% (39–97mmol/mol), on GLP‐1 agonists with oral hypoglycaemics for at least four months. A liquid meal tolerance test was performed and samples for plasma glucose, insulin and C‐peptide were taken at 0, 30 and 120 minutes. Glucagon was measured in the fasting state. Insulin secretion and resistance indices were correlated with HbA1c using Pearson correlation coefficient.We found a significant correlation between HbA1c and indices of beta‐cell reserve (HOMA B: r  =  ‐0.53, p < 0.05; Insulinogenic 30 Index: r  =  ‐0.46, p < 0.05; Disposition Index 30: r  =  ‑0.53, p < 0.05; and 120 minute C‐peptide: r  =  ‐0.4, p < 0.05). We did not observe any significant correlation between glycaemic control and fasting glucagon nor with HOMA IR.Indices of beta‐cell function, but neither insulin sensitivity nor fasting glucagon, are associated with diabetes control in long‐term GLP‐1 treated patients with type 2 diabetes. This has important implications for the management of individuals who fail to achieve target glycaemic control on GLP‐1 agonists.
Tailored side‐chain architecture of benzil voltage stabilizers for enhanced dielectric strength of cross‐linked polyethylene
Authors: Jarvid Markus , Johansson Anette , Bjuggren Jonas M. , Wutzel Harald , Englund Villgot , Gubanski Stanislaw , Müller Christian , Andersson Mats R. 
Published: June 2014

ABSTRACTThe synthesis and physico‐chemical properties of seven benzil‐type voltage stabilizers are reported. The benzil core is substituted with alkyl chains of different length that are linked to the benzil core via an ester, ether, or tertiary amine group. All additives can be melt‐processed with low‐density polyethylene (LDPE). Fourier‐transform infrared spectroscopy confirms that benzil compounds are not affected by the LDPE cross‐linking reaction induced by dicumyl peroxide. Moreover, a combination of gel content measurements, thermal analysis, and small‐angle X‐ray scattering indicates that the presence of benzil voltage stabilizers does not significantly alter the microstructure of cross‐linked polyethylene (XLPE). Electrical tree inhibition experiments under high‐voltage alternating current conditions show that all investigated additives substantially enhance the dielectric strength of the insulating material at a concentration of only 10 mmol kg−1. The highest improvement in dielectric strength, of more than 70% with respect to reference XLPE, is obtained with voltage stabilizers, which carry short (methyl) side chains that are linked to the benzil core via an ester or tertiary amine group. © 2014 Wiley Periodicals, Inc. J. Polym. Sci., Part B: Polym. Phys. 2014, 52, 1047–1054