bluuebunny/crossref_metadata_2025_split huggingface dataset:
ChemInform Abstract: Copper‐Manganese Spinel Oxide Catalyzed Synthesis of Amides and Azobenzenes via Aminyl Radical Cations.
Authors: Sultan Shaista , Kumar Manjeet , Devari Shekaraiah , Mukherjee Debaraj , Shah Bhahwal Ali 
Published: June 2016

AbstractAmides are prepared by aminolysis of esters via the radical pathway.
ChemInform Abstract: Hydroarylation of 1‐Aryl‐2‐halogeno‐3,3,3‐trifluoropropenes in CF3SO3H: Regioselective Approach to Trifluoromethylated Diarylethanes and Ethenes.
Authors: Sandzhieva Mariya , Ryabukhin Dmitry S. , Muzalevskiy Vasily M. , Grinenko Elena V. , Nenajdenko Valentine G. , Vasilyev Aleksander V. 
Published: June 2016

AbstractA simple and highly efficient method for the hydroarylation of the double bond of halogeno‐2‐CF3 styrenes is developed.
ChemInform Abstract: Stereoselective Synthesis of (Sulfonimidoyl)cyclopropanes with (R)‐PhSO(NTs)CH2Cl and α,β‐Unsaturated Weinreb Amides: Tuning the of Selectivity Between C—Cl and C—S Bond Cleavage.
Authors: Shen Xiao , Liu Qinghe , Zhang Wei , Hu Jinbo 
Published: June 2016

AbstractThe Weinreb amide group and the counter cation of the base are important for the selective C‐Cl bond cleavage of (R)‐PhSO(NTs)CH2Cl.
ChemInform Abstract: New Facile, Eco‐Friendly and Rapid Synthesis of Trisubstituted Alkenes Using Bismuth Nitrate as Lewis Acid.
Authors: Muhammad Munira T. , Khan Khalid M. , Taha Muhammad , Khan Tariq , Hussain Shafqat , Fakhri Muhammad I. , Perveen Shahnaz , Voelter Wolfgang 
Published: June 2016

AbstractThis rapid Knoevenagel condensation of aromatic aldehydes with malononitrile proceeds under mild conditions in water as green solvent.
ChemInform Abstract: Ru‐Catalyzed Asymmetric Hydrogenation of δ‐Keto Weinreb Amides: Enantioselective Synthesis of (+)‐Centrolobine.
Authors: Zhao Mengmeng , Lu Bin , Ding Guangni , Ren Kai , Xie Xiaomin , Zhang Zhaoguo 
Published: June 2016

AbstractEnantio‐enriched δ‐hydroxy Weinreb amides are prepared by asymmetric hydrogenation in high yields and enantioselectivities.
ChemInform Abstract: Ruthenium‐Catalyzed Cycloisomerization of 2,2′‐Diethynylbiphenyls Involving Cleavage of a Carbon—Carbon Triple Bond.
Authors: Matsuda Takanori , Kato Kotaro , Goya Tsuyoshi , Shimada Shingo , Murakami Masahiro 
Published: June 2016

AbstractA novel cycloisomerization reaction of 2,2′‐diethynylbiphenyls giving 9‐ethenylphenanthrenes is described.
ChemInform Abstract: Synthesis and Crystal Structure of a [70]Fullerene—Pentacene Monoadduct
Authors: Shirai Hitoshi , Tajima Tomoyuki , Kubo Kentaro , Nishihama Takuya , Miyake Hideaki , Takaguchi Yutaka 
Published: June 2016

AbstractThe first isolation of a single pure regioisomer of a C70—acene monoadduct is reported.
ChemInform Abstract: Enantioselective Access to Spirocyclic Sultams by Chiral Cpx—Rhodium(III)‐Catalyzed Annulations.
Authors: Pham Manh V. , Cramer Nicolai 
Published: June 2016

AbstractThe new and rapid entry to chiral spirocyclic sultams involves a [3 + 2] annulation of N‐sulfonyl ketimines and an alkyne.
ChemInform Abstract: In situ Generated Reagent from Sulfur for Alkynylanthraquinone Cyclization. The Simple Synthesis of Angular Thienoanthraquinones.
Authors: Fedenok Lidiya G. , Fedotov Kirill Yu. , Pritchina Elena A. , Polyakov Nikolaj E. 
Published: June 2016

AbstractA highly reactive sulfinating agent is generated in situ by the reaction of elemental sulfur and NaOH allowing the synthesis of thienoanthraquinone derivatives from alkynylanthraquinones.
ChemInform Abstract: Synthesis and Characterization of Polyindole and Its Catalytic Performance Study as a Heterogeneous Catalyst.
Authors: Chhattise Prakash , Handore Kalpana , Horne Amit , Mohite Kakasaheb , Chaskar Atul , Dallavalle Sabrina , Chabukswar Vasant 
Published: June 2016

AbstractA simple methodology for the efficient formation of biologically active 3,3‐arylmethylene bis‐1H indoles (III) using polyindole as a heterogeneous catalyst is developed.
ChemInform Abstract: (Imidazol‐2‐yl)methyl‐1,3‐propanediones: Regioselective C—H Functionalization of the Imidazole Ring by Acylacetylene/Aldehyde Pairs.
Authors: Trofimov Boris A. , Andriyankova Ludmila V. , Nikitina Lina P. , Belyaeva Kseniya V. , Mal'kina Anastasiya G. , Bagryanskaya Irina Yu. , Afonin Andrei V. , Ushakov Igor A. 
Published: June 2016

AbstractThe reaction is carried out under metal‐free conditions with aromatic reactants.
ChemInform Abstract: Microwave Assisted Synthesis and Cytotoxic Activity Evaluations of New Benzimidazole Derivatives.
Authors: Bui Hue Thi Buu , Ha Quy Thi Kim , Oh Won Keun , Vo Duy Duc , Chau Yen Nguyen Tram , Tu Cuc Thi Kim , Pham Em Canh , Tran Phuong Thao , Tran Loan Thi , Mai Hieu Van 
Published: June 2016

AbstractThe microwave assisted condensation of aldehydes (I) and (VIII) with aromatic diamines or o‐nitroaniline give benzimidazole derivatives.
ChemInform Abstract: Ceria‐Vanadia/Silica‐Catalyzed Cascade for C—C and C—O Bond Activation: Green One‐Pot Synthesis of 2‐Amino‐3‐cyano‐4H‐pyrans.
Authors: Maddila Surya Narayana , Maddila Suresh , van Zyl Werner E. , Jonnalagadda Sreekantha B. 
Published: June 2016

AbstractA three‐component cyclocondensation of dimedone, aromatic aldehydes, and malononitrile in ethanol provides a green and efficient synthesis of the title compounds.
ChemInform Abstract: One‐Pot Synthesis of Benzopyran‐4‐ones with Cancer Preventive and Therapeutic Potential.
Authors: Talhi Oualid , et al.  
Published: June 2016

AbstractThe title benzopyranones are prepared by a tandem sequence involving the organobase‐catalyzed Michael addition of R1COCH2COR2 to chromonecarboxylic acid leading to decarboxylation followed by a Baker—Venkataraman rearrangement of the resulting Michael—adducts via chromone‐ and/or chromanone ring closure when R1 is an ortho‐hydroxyaryl group.
ChemInform Abstract: Cross‐Dehydrogenative Regioselective C(sp3)—C(sp2) Coupling of Enamino‐Ketones Followed by Rearrangement: An Amazing Formation Route to Acridine‐1,8‐dione Derivatives.
Authors: Sarkar Rajib , Mukhopadhyay Chhanda 
Published: June 2016

AbstractThe title compounds are prepared by homocoupling of enamine ketones derived from cyclic 1,3‐diketones with benzyl amines and by heterocoupling of aminocyclohexenones with benzyl enaminoketones.
ChemInform Abstract: Metal‐Free Direct α‐Selective Arylation of Boron Dipyrromethenes via Base‐Mediated C—H Functionalization.
Authors: Zhou Xin , Wu Qinghua , Yu Yang , Yu Changjiang , Hao Erhong , Wei Yun , Mu Xiaolong , Jiao Lijuan 
Published: June 2016

AbstractThe base‐mediated C—H functionalization of a boradiazaindacene derivative with diaryliodonium salts provides a straightforward facile access to α‐arylboradiazaindacene dyes.
ChemInform Abstract: Friedel—Crafts‐Type Intermolecular C—H Silylation of Electron‐Rich Arenes Initiated by Base‐Metal Salts.
Authors: Yin Qin , Klare Hendrik F. T. , Oestreich Martin 
Published: June 2016

AbstractThe simple combination of an Fe(II) salt with NaBARF mediates an otherwise difficult electrophilic aromatic substitution (SEAr) with an in situ generated silicon electrophile.
ChemInform Abstract: One‐Pot Synthesis of 4‐(Phenylselanyl)‐Substituted Pyrazoles.
Authors: Zora Metin , Demirci Deniz , Kivrak Arif , Kelgokmen Yilmaz 
Published: June 2016

AbstractReaction of α,β‐alkynic aldehydes with hydrazines (II) produces in situ α,β‐alkynic hydrazones, which upon treatment with PhSeCl undergo cyclization to afford title pyrazoles in good to high yields.
ChemInform Abstract: Catalytic Asymmetric Synthesis of anti‐α,β‐Diamino Acid Derivatives.
Authors: Izumi Sanae , Kobayashi Yusuke , Takemoto Yoshiji 
Published: June 2016

AbstractA chemo‐, regio‐, and stereoselective addition of hydroxylamines to alkylideneoxazolones using chiral phosphoric acid catalysts affords anti‐α,β‐diamino acid derivatives.
ChemInform Abstract: A Pyrone, Naphthoquinone, and Cyclic Urea from the Marine‐Derived Fungus Astrosphaeriella nypae BCC 5335
Authors: Chokpaiboon Supichar , Unagul Panida , Kongthong Surisa , Danwisetkanjana Kannawat , Pilantanapak Apiradee , Suetrong Satinee , Bunyapaiboonsri Taridaporn 
Published: June 2016

Abstractisolation and structure elucidation of astronypyrone (I), astronyquinone (II), and astronyurea (III)
ChemInform Abstract: Recent Advances in Gold‐Catalyzed N‐ and O‐Functionalizations of Alkynes with Nitrones, Nitroso, Nitro and Nitroxy Species
Authors: Huple Deepak B. , Ghorpade Satish , Liu Rai‐Shung 
Published: June 2016

AbstractReview: [47 refs.
ChemInform Abstract: Computer‐Assisted Synthetic Planning: The End of the Beginning
Authors: Szymkuc Sara , Gajewska Ewa P. , Klucznik Tomasz , Molga Karol , Dittwald Piotr , Startek Michal , Bajczyk Michal , Grzybowski Bartosz A. 
Published: June 2016

AbstractReview: [61 refs.
Facile Diastereoseparation of Glycosyl Sulfoxides by Chiral Stationary Phase
Authors: Taniguchi Tohru , Asahata Mai , Nasu Akihito , Shichibu Yukatsu , Konishi Katsuaki , Monde Kenji 
Published: June 2016

AbstractSeparation of the diastereomers of glycosyl sulfoxides differing in the sulfur chirality has been difficult. This article presents a fast and scalable method for their diastereoseparation using a chiral stationary phase. The usefulness of this method was demonstrated in a 500‐mg scale separation within 20 min, and in the separation of trisaccharyl sulfoxide diastereomers. Chirality 28:534–539, 2016. © 2016 Wiley Periodicals, Inc.
The (6–4) Dimeric Lesion as a DNA Photosensitizer
Authors: Vendrell‐Criado Victoria , Rodríguez‐Muñiz Gemma M. , Lhiaubet‐Vallet Virginie , Cuquerella M. Consuelo , Miranda Miguel A. 
Published: June 2016

AbstractThe front cover artwork is provided by Miguel A. Miranda and co‐workers at Instituto de Tecnología Química (UPV‐CSIC). The image shows that (6–4) photoproducts, primary UVB dimeric lesions, act as photosensitizers of cyclobutane pyrimidine dimers that are produced as secondary DNA lesions. Read the full text of the article at 10.1002/cphc.201600154.
A finite element analysis of novel vented dental abutment geometries for cement‐retained crown restorations
Authors: Rodriguez Lucas C. , Saba Juliana N. , Meyer Clark A. , Chung Kwok‐Hung , Wadhwani Chandur , Rodrigues Danieli C. 
Published: June 2016

AbstractRecent literature indicates that the long‐term success of dental implants is, in part, attributed to how dental crowns are attached to their associated implants. The commonly utilized method for crown attachment – cementation, has been criticized because of recent links between residual cement and peri‐implant disease. Residual cement extrusion from crown‐abutment margins post‐crown seating is a growing concern. This study aimed at (1) identifying key abutment features, which would improve dental cement flow characteristics, and (2) understanding how these features would impact the mechanical stability of the abutment under functional loads. Computational fluid dynamic modeling was used to evaluate cement flow in novel abutment geometries. These models were then evaluated using 3D‐printed surrogate models. Finite element analysis also provided an understanding of how the mechanical stability of these abutments was altered after key features were incorporated into the geometry. The findings demonstrated that the key features involved in improved venting of the abutment during crown seating were (1) addition of vents, (2) diameter of the vents, (3) location of the vents, (4) addition of a plastic screw insert, and (5) thickness of the abutment wall. This study culminated in a novel design for a vented abutment consisting of 8 vents located radially around the abutment neck‐margin plus a plastic insert to guide the cement during seating and provide retrievability to the abutment system.Venting of the dental abutment has been shown to decrease the risk of undetected residual dental cement post‐cement‐retained crown seating. This article will utilize a finite element analysis approach toward optimizing dental abutment designs for improved dental cement venting. Features investigated include (1) addition of vents, (2) diameter of vents, (3) location of vents, (4) addition of plastic screw insert, and (5) thickness of abutment wall.
IO circuit design for 2.5D through‐silicon‐interposer interconnects
Authors: Jawed Syed Arsalan , Afridi Sohaib Saadat , Anjum Muhammad Arslan , Khan Khubaib 
Published: June 2016

SummaryThis paper presents four topologies of voltage‐mode un‐terminated IO cells in 28‐nm CMOS for single‐ended rail‐to‐rail signaling over a passive interposer die in 2.5D configuration for >1Gbps data rates. The presented design explores the existing IO design‐space from a 2.5D viewpoint, optimizing existing topologies from area, speed, power and protection perspectives, with a higher degree of configurability in the form of pre‐emphasis and slew‐rate control. The transmitter (TX) embeds pre‐emphasis to enhance high‐frequency components of the signal for longer low‐pass natured channels. The TX also implements slew‐rate control to minimize reflections on shorter channels because of impedance discontinuities and also to minimize simultaneous switching noise. Level‐shifting capability embedded in the receiver (RX) enables multi‐technology interfacing where different dies are signaling at their core voltages (range: 0.7 V–1.8 V) instead of following a particular signaling standard. The measurement results of the transceivers, over a interposer of length of 3.5 mm, demonstrate ±5% duty‐cycle distortion with 700 μW at 500 MHz/0.8‐V‐signaling on the channel with jitter of 20 ps, ±10% duty‐cycle distortion with 1.8 mW at 1Gbps/0.9‐V signaling with jitter of 20 ps, ±10% duty‐cycle distortion with 2 mW at 2Gbps/0.7‐V signaling for 1‐V receiver core voltage with a jitter of 10 ps. Copyright © 2016 John Wiley & Sons, Ltd.
Development of High Power, Large Area, Deep Ultraviolet Light Emitting Devices Using Dynamic Microplasma Excitation (MIPE) of AlGaN Multiple Quantum Wells
Authors: KUROSE NORIKO , AOYAGI YOSHINOBU 
Published: June 2016

SUMMARYWe have succeeded in developing a new dynamic microplasma‐excited deep ultraviolet light emitting device using aluminum gallium nitride (AlGaN) multi‐quantum wells (MIPE). The operating principle is completely different from that of current injection‐type deep ultraviolet light emitting diodes. We have created a 12 × 5.5 cm device with a power of about 1 W at a wavelength of 325 nm. We can achieve panel‐type laminar‐flow water purification and cleaning systems that can be alternatives to the use of mercury lamps as a DUV light source, since these cannot be used under the Minamata Treaty. The wavelength region from 210 nm to 250 nm realized in this device opens new fields of academic research and areas of application, in which the decomposition of materials that are difficult to break down, the synthesis of new materials, including a new H2 battery cell, and disinfection of water are possible.
Simulation of Bullying and Conforming in a Class Based on Socion Theory
Authors: OSUMI TOSHIHIRO , OSAWA HIROTAKA , IMAI MICHITA 
Published: June 2016

SUMMARYBullying is a serious problem, especially at elementary schools and junior high schools, and occurs all over the world with some variations. As a countermeasure against bullying, many interventions and preventive programs have been proposed (e.g., counseling, dispatch of advisers, group work, suspension orders) and there have been many investigations presenting analyses of bullying along with intervention and prevention strategies. However, numerous samples and long times are required for the analysis of strategies in the real world. We believe that simulations of bullying and countermeasures are effective in providing quick and easy analysis. In this investigation, we developed a simulation model of school bullying “within‐group” or “within‐class” that is based on “socion theory”. The primary feature of socion theory is that each agent has an imagined personal relationship. We implemented a strategy called the “conforming strategy” to simulate bullying caused by conforming behavior of students. Student agents who implement the conforming strategy watch the human relationships around them and update their own imagined relationships. They then conform to the behavior of other students to achieve better social standing or to maintain their position on the basis of simulation results based on their own imagined relationships. The results of the experiments show that the conforming strategy increases the probability of bullying and the number of victims, and that conforming behavior increases the probability of bullying in the real world. We also describe a situation in which teachers underestimate or cannot perceive bullying when it occurs, and many teachers underestimate or cannot perceive bullying in the real world. Overall, we show that socion theory has sufficient expressiveness to be used as a foundation for bullying simulation.
Improvement of Determination Algorithm for Eye Glance Input Interface
Authors: ITO YUTA , ITAKURA NAOAKI , MITO KAZUYUKI , MIZUNO TOTA 
Published: June 2016

SUMMARYIn our previous studies, an eye control input interface using an electrooculograph (EOG) amplified by ac coupling has been developed. We proposed an eye gesture input interface using a combination of several eye movements. It is unnecessary for eye gesture input to restrict head movement, in contrast to conventional eye gaze input. However, it is necessary to use a start operation before eye gesture input. Therefore, eye glance input has been proposed. Eye glance input uses only a combination of eye movements in opposite directions, so that it does not need start operations. However, eye glance input has not always been successful because the algorithm for detection of eye movement from EOG signals was not adapted to slight shifts of the signal baseline. In this study, we propose a new determination algorithm for the eye glance input interface. In experiments using our improved algorithm, we achieved direction determination success rates of over 80% for six subjects.
Development and technofunctional‐sensory characterization of virtually TFA free deep‐frying fats for artisan bakery products
Authors: Merkle Sybille , Giese Editha , Dietz Nadine , Lösche Klaus , Fritsche Jan 
Published: June 2016

Trans fatty acids (TFA) are considered undesirable food components due to their unequivocally proven negative effects on cardiovascular health. Twelve virtually TFA free deep‐frying fats were developed by blending various liquid and solid vegetable fat components and characterized in terms of their technofunctional‐sensory properties. The aim was to develop fat blends with similar or improved technofunctional‐sensory properties as common deep‐frying fats for bakery applications. For this purpose, foaming and splattering behavior during deep‐frying, melting behavior, sensory properties as well as thermal and oxidation stability were analyzed. Moreover, volatile rancid off‐taste compounds were determined by HS‐SPME‐GC‐O/MS. Acrolein was measured by means of NTD‐GC‐MS. Six optimized deep‐frying fat prototypes were further investigated in a long‐term deep‐frying study using donut‐like products and quark balls as model bakery products. Most of the prototypes displayed high thermal stability as measured by total polar material (TPM) and polymerized triglycerides (PTG). Some of the deep‐frying fat blend prototypes performed equally well or even better than the virtually TFA free deep‐frying fats regarding oxidation stability. Several deep‐frying fat blend prototypes were similar to the TFA rich reference in most sensory attributes. These results were used to establish a deep‐frying fat toolbox that may be applied for further fat blend optimizations. Finally, this research data may contribute to endorse artisan bakeries to use only virtually TFA free deep‐frying fats for the production of deep‐fried bakery products.Practical applications: Many artisan bakeries in Germany still use deep‐frying fats containing partially hydrogenated peanut oils with high amounts of TFA. However, some have already replaced the deep‐frying fats by virtually TFA free alternatives. In order to encourage a more widespread application of virtually TFA free deep‐frying fats optimization of the latter in terms of their technofunctional and sensory properties is recommended. This research data may contribute to endorse artisan bakeries to use only virtually TFA free deep‐frying fats for the production of deep‐fried bakery products.Novel virtually TFA free deep‐frying fat blends were developed and characterized in terms of their technofunctional‐sensory properties. The final optimized six prototypes exhibited similar or partly even improved technofunctional‐sensory properties compared to commercially available deep‐frying fats intended for bakery applications.
A qualitative exploration of alcohol use among student sportspeople: A social identity perspective
Authors: Zhou Jin , Heim Derek 
Published: June 2016

AbstractResearch indicates that university student sportspeople are a high‐risk subgroup for hazardous alcohol consumption. Adopting a social identity perspective, we explored the social and psychological processes linking sports participation and alcohol use. Twenty‐two individual semi‐structured interviews were conducted with UK student sportspeople (male: 12; female: 10). A deductive thematic analysis identified three core themes: social identification and sports group membership, identity processes in (alcohol) behaviours and sport context‐specific significance of alcohol. Results suggest that the consumptive practices among student sportspeople were strategic activities underpinned by social identity processes, and which served to provide a positive sports experience at the group level. Our findings highlight the interactions between the sport environment, the social structure of sport participation and the multipurpose function of alcohol in this context. We discuss the implications of these results in support of a social identity approach to sport‐related drinking.
Relevance of BRAF and NRAS mutations in the primary tumor and metastases of papillary thyroid carcinomas
Authors: Cañadas‐Garre Marisa , Becerra‐Massare Patricia , Moreno Casares Antonia , Calleja–Hernández Miguel Ángel , Llamas‐Elvira José Manuel 
Published: June 2016

AbstractBackgroundMultifocality of papillary thyroid carcinoma (PTC) is common. BRAF and NRAS mutations are the most frequent genetic alterations in PTC. The purpose of this study was to determine the distribution and relevance of BRAFT1799A and NRAS mutations in PTC.MethodsBRAFT1799A and NRAS mutations were evaluated in 195 intrathyroid or metastatic foci from 29 patients with multifocal PTC.ResultsBRAFT1799A mutation was positive in 46.7% of the 59 intrathyroid and 136 metastatic foci (91/195 foci). Heterogeneous BRAF pattern was observed in 51.7% patients (15/29 patients). Irrespective of BRAF status at diagnosis (thyroid or nodes), all patients with recurrent PTC presented BRAF‐mutated metastases during follow‐up. All foci were negative for NRAS mutations.ConclusionBRAF but not NRAS mutations were heterogeneously distributed among primary tumor, nodal sites, and recurrent disease. The BRAF status of metastases generated during the follow‐up can differ from the status of foci at diagnosis. © 2016 Wiley Periodicals, Inc. Head Neck 38: 1772–1779, 2016