bluuebunny/crossref_metadata_2025_split huggingface dataset:
ChemInform Abstract: Unexpected Copper Mediated Benzyl O→O Migration During an Ullmann Ether Coupling.
Authors: Vanucci‐Bacque Corinne , Chaabouni Slim , Fabing Isabelle , Bedos‐Belval Florence , Baltas Michel 
Published: June 2014

AbstractThe title benzyl migration results in the unexpected formation of ether (IV) as the major product.
ChemInform Abstract: Iron‐Catalyzed ortho‐Allylation of Aromatic Carboxamides with Allyl Ethers.
Authors: Asako Sobi , Ilies Laurean , Nakamura Eiichi 
Published: June 2014

AbstractFor the first time, the iron‐catalyzed directed C—H bond activation to achieve the regioselective γ‐allylation is demonstrated.
ChemInform Abstract: Hydrocyanation of Arylidenemalonates Using Potassium Hexacyanoferrate(II) as an Eco‐Friendly Cyanide Source.
Authors: Li Zheng , Zhang Yupeng , Wen Fei , Yin Junjun , Zheng Huanhuan , Li Hongbo , Yang Jingya 
Published: June 2014

AbstractThe presence of two ester groups in the substrates is crucial as ethyl cinnamate (Ib) does not undergo hydrocyanation under the reaction conditions.
ChemInform Abstract: K4[Fe(CN)6] as Non‐Toxic Source of Cyanide for the Cyanation of Aryl Halides Using Pd‐β Zeolite as a Heterogeneous Catalyst.
Authors: Sajadi S. Mohammad , Maham Mehdi , Mahmoud Sarbast Ahmad 
Published: June 2014

AbstractThe reaction is conducted under ligand free conditions.
ChemInform Abstract: MgI2 Etherate‐Catalyzed Strecker Reaction: A Facile and Efficient Synthesis of α‐Aminonitriles from Aldimines and Trimethylsilyl Cyanide.
Authors: Lu Yongping , Wang Yanping , Zhang Xingxian 
Published: June 2014

AbstractThe procedure can not be applied to ketimines.
ChemInform Abstract: Palladium Nanoparticles Stabilized by Sterically Hindered Phosphonium Salts as Suzuki Cross‐Coupling Catalysts.
Authors: Ermolaev V. V. , Arkhipova D. M. , Nigmatullina L. Sh. , Rizvanov I. Kh. , Milyukov V. A. , Sinyashin O. G. 
Published: June 2014

AbstractIn situ generated palladium nanoparticles stabilized by a sterically hindered phosphonium salt are shown to act as an efficient catalyst for the Suzuki cross‐coupling reaction of haloarenes with arylboronic acids.
ChemInform Abstract: Oxovanadium(V)‐Induced Diastereoselective Oxidative Homocoupling of Boron Enolates.
Authors: Amaya Toru , Masuda Takaya , Maegawa Yusuke , Hirao Toshikazu 
Published: June 2014

AbstractOxovanadium(V)‐induced oxidative coupling of (Z)‐boron enolates derived from enones (I) is demonstrated to give the corresponding 2,3‐disubstituted 1,4‐diketones (II) in good yields.
ChemInform Abstract: Indium(III) Triflate‐Catalyzed [4 + 2] Benzannulation Reactions of O‐Alkynylbenzaldehydes with Enolisable Carbonyl Compounds: Selective Synthesis of Naphthyl Ketones.
Authors: Sakthivel Karuppusamy , Srinivasan Kannupal 
Published: June 2014

AbstractThe indium‐catalyzed benzannulation of alkynyl benzaldehydes (I) with aldehydes (II) or ketones (VI) leads to desired naphthyl ketones (III) or (VII), resp., as single products.
ChemInform Abstract: MeOTf‐Induced Carboannulation of Arylnitriles and Aromatic Alkynes: A New Metal‐Free Strategy to Construct Indenones.
Authors: Yan Xiaoyu , Zou Song , Zhao Peng , Xi Chanjuan 
Published: June 2014

AbstractA variety of substituted indenones is readily prepared by a carboannulation reaction of benzonitriles with alkynes in the presence of methyl triflate.
ChemInform Abstract: A Facile Preparation of Various N‐Heterocycles Using Amides and Olefins.
Authors: Gratia Synthia S. , Vigneau Edward S. , Eltayeb Sumiea , Patel Kishan , Meyerhoefer Terence J. , Kershaw Sonia , Huang Victor , De Castro Michael 
Published: June 2014

AbstractA convenient synthesis of a variety of N‐heterocycles including oxazolines, thiazolines, and dihydrodoxazines is accomplished by NIS‐promoted addition of amides or heteroanalogues amides to olefins.
ChemInform Abstract: Two‐Directional Synthesis of the Non‐Adjacent Bis(tetrahydrofuran) Core of cis‐Sylvaticin.
Authors: Quinn Kevin J. , Gage Kaylie E. , Stanners Caroline M. , Hayes Colin O. , Shanley Kathleen E. , Couvertier Shalise M. 
Published: June 2014

AbstractThe title core structure (I) is synthesized in seven steps and 24% overall yield from (2R,3S)‐1,2‐epoxy‐4‐penten‐3‐ol.
ChemInform Abstract: An Expedient Approach for the Synthesis of 1‐Alkyl‐4‐propionylpyrrolidin‐2‐ones
Authors: Saadi Fatma , Jebali Khaoula , Arfaoui Aicha , Amri Hassen 
Published: June 2014

Abstractusing a tandem addition‐cyclization reaction of primary amines with α‐functionalized propyl vinyl ketone (III)
ChemInform Abstract: α‐Amino Acid Derived Enaminones and Their Application in the Synthesis of N‐Protected Methyl 5‐Substituted‐4‐hydroxypyrrole‐3‐carboxylates and Other Heterocycles.
Authors: Groselj Uros , Zorz Mojca , Golobic Amalija , Stanovnik Branko , Svete Jurij 
Published: June 2014

AbstractN‐protected α‐amino acids can be converted to enaminones [e.g. compound (III)], which can be isolated, but in many cases easily transform into 4‐hydroxypyrroles and their 4‐oxo‐tautomers [e.g. compounds (IV) and (V)].
ChemInform Abstract: Synthesis and Lipophilicity Evaluation of Some Novel Indole‐Containing Pseudopeptides.
Authors: Alavijeh Nahid S. , Ramezanpour Sorour , Alavijeh Mohammad S. , Balalaie Saeed , Rominger Frank , Misra Anil , Bijanzadeh Hamid Reza 
Published: June 2014

AbstractMost of the new indole‐containing pseudopeptides (V), (VIII), and (X) possess the optimal range of lipophilicity for oral absorption, cell membrane penetration and blood‐brain barrier permeation.
ChemInform Abstract: Highly Efficient and Diastereoselective Construction of Bispirooxindoles Through a Cascade Michael‐Cyclization Reaction.
Authors: Wu Song , Zhu Xingli , He Wujun , Wang Rongming , Xie Xiaohua , Qin Dabin , Jing Linhai , Chen Zeqin 
Published: June 2014

AbstractThe diastereoselective synthesis of bisspirooxindoles (III) and (VI) is accomplished through a consecutive Michael addition/cyclization reaction of methyleneindolinones with 3‐isothiocyanato oxindoles in the presence of small amounts of tetramethylguanidine as the catalyst.
ChemInform Abstract: Copper‐Mediated C3‐Cyanation of Indoles by the Combination of Amine and Ammonium.
Authors: Liu Bin , Wang Jiehui , Zhang Bo , Sun Yang , Wang Lei , Chen Jianbin , Cheng Jiang 
Published: June 2014

AbstractThe transformation is suggested to proceed via an iminium ion, generated from TMEDA, which is sequentially attacked by indole (I) and water followed by hydrolyzation to form an intermediate aldehyde.
ChemInform Abstract: Synthesis of 1,4,5‐Trisubstituted‐1,2,3‐triazoles via Coupling Reaction of Diaminomaleonitrile with Aromatic Diazonium Salts.
Authors: Al‐Azmi Amal , Kalarikkal Anita K. 
Published: June 2014

AbstractThe reactions of aryldiazonium chlorides with diaminodicyanoethylene (I) are examined with respect to the formation of 1,2,3‐triazoles.
ChemInform Abstract: Facile Access to cis‐2,6‐Disubstituted Tetrahydropyrans by Palladium‐Catalyzed Decarboxylative Allylation: Total Syntheses of (.+‐.)‐Centrolobine and (+)‐Decytospolides A and B.
Authors: Zeng Jing , Tan Yu Jia , Ma Jimei , Leow Min Li , Tirtorahardjo Davin , Liu Xue‐Wei 
Published: June 2014

AbstractApplication of this method is demonstrated by the total syntheses of Centrolobine (VI) and Decytospolides A and B (VII).
ChemInform Abstract: An Efficient Three‐Component Synthesis of Amino‐Substituted Pyrano[3,2‐b]pyranones.
Authors: Meng Xiang‐Xue , Du Bai‐Xiang , Zhao Bo , Li Yu‐Ling , Chen Cai‐Fa 
Published: June 2014

AbstractThe applied ionic liquid can be reused at least three times.
ChemInform Abstract: Evaluation of Baylis—Hillman Routes to 3‐(Aminomethyl)coumarin Derivatives.
Authors: Olasupo Idris , Rose Nathan R. , Klein Rosalyn , Adams Luqman A. , Familoni Oluwole B. , Kaye Perry T. 
Published: June 2014

AbstractTwo different Baylis—Hillman approaches for the synthesis of coumarin derivatives containing peptide‐like side chains are investigated.
ChemInform Abstract: Concise Enantioselective Syntheses of (+)‐L‐733,060 and (2S,3S)‐3‐Hydroxypipecolic Acid by Cobalt(III)(salen)‐Catalyzed Two‐Stereocenter Hydrolytic Kinetic Resolution of Racemic Azido Epoxides.
Authors: Devalankar Dattatray A. , Chouthaiwale Pandurang V. , Sudalai Arumugam 
Published: June 2014

AbstractBoth substances are prepared with 99% enantiomeric excess.
ChemInform Abstract: Thiophostone‐Derived Broensted Acids in the Organocatalyzed Transfer Hydrogenation of Quinolines: Influence of the P‐Stereogenicity.
Authors: Ferry Angelique , Stemper Jeremy , Marinetti Angela , Voituriez Arnaud , Guinchard Xavier 
Published: June 2014

AbstractSeveral phosphonic acid catalysts are synthesized and tested in a model reaction.
ChemInform Abstract: Broensted Acidic Deep Eutectic Solvent Catalyzed the One‐Pot Synthesis of 2H‐Indazolo[2,1‐b]phthalazine‐triones.
Authors: Wang Liang , Zhou Min , Chen Qun , He Ming‐Yang 
Published: June 2014

AbstractThe deep eutectic solvent catalyst is non‐toxic, inexpensive and easily recyclable and can be reused for at least five times without considerable loss of its effectivity.
ChemInform Abstract: A Convenient Synthesis of 4,6‐Dimethyl‐2‐(methylsulfonyl)pyrimidine.
Authors: Xu Defeng , Zhu Zhiling , Wang Ziqiao 
Published: June 2014

AbstractThe target compound is widely used in biological, pharmaceutical and agrochemical fields and is a key intermediate for the preparation of a number of bioactive compounds.
ChemInform Abstract: Chemoselective Three Component Reactions of 3‐Aminopyrazoles, Aldehydes and Malononitrile: Optimize the Structures and Compute the Energies of Possible Tautomers.
Authors: Sheibani Hassan , Saheb Vahid , Rezaei Marjan , Zahedifar Mahboobeh 
Published: June 2014

AbstractThe structure of the new reaction products (IV) is established by spectroscopic studies and theoretical DFT calculations.
ChemInform Abstract: Synthesis of a New Series of 4‐Quinazolinyl Piperazine Aryl Ureas.
Authors: Zhang Guangji , Fu Xiaobo , Peng Xinming , Li Xiuling , Chen Jianian 
Published: June 2014

AbstractThe synthesis of 4‐quinazolinyl piperazines procceds via the reaction of 4‐(1‐piperazinyl)‐quinazoline (I) with isocyanates formed in situ from aromatic amines and triphosgene.
ChemInform Abstract: Caesium Iodide as an Efficient Catalyst for Synthesis of N‐Substituted Azepines via Tandem Michael Addition and Cyclization under Aqueous Conditions.
Authors: Eshghi Hossein , Momen Sara , Gholizadeh Mostafa , Vakili Mohammad 
Published: June 2014

AbstractReuse of the catalyst does not lead to a significant decrease in its activity.
ChemInform Abstract: An Efficient One‐Pot Synthesis of Substituted 1,5‐Benzoxazepines and 1,5‐Benzothiazepines Using Potassium Dodecatungstocobaltate Trihydrate (PDTC, K5CoW12O40·3H2O) as Heterogeneous Catalyst.
Authors: Purandhar Koilkonda , Chari Murugulla Adharvana , Reddy Padi Pratap , Mukkanti Kagga , Reddy G. Mahesh 
Published: June 2014

AbstractThe synthesis of the title heterocycles succeeds under classical heating as well as microwave irradiation conditions (a little less product yield).
ChemInform Abstract: A Direct, Versatile Route to Functionalized Trialkoxysilanes.
Authors: Quiclet‐Sire Beatrice , Yanagisawa Yuuki , Zard Samir Z. 
Published: June 2014

AbstractThe peroxide initiated radical addition of dithiocarbonates (I) and (VII) to trialkoxy vinylsilanes (II) leads to functionalized trialkoxysilanes (III) and (VIII), respectively.
ChemInform Abstract: Diastereoselective Synthesis of Functionalized Phosphonates by Three‐Component Reaction Between Phosphites, Acetylene Diesters and Formanilides.
Authors: Anary‐Abbasinejad Mohammad , Tavakkoli Seyed‐Mahdi , Talebizadeh Mahdiyeh , Amjadi Nona 
Published: June 2014

AbstractThe one‐pot three‐component reaction proceeds with comparable yields with diethyl instead of dimethyl acetylenedicarboxylate.
ChemInform Abstract: Chemoenzymatic Approach to Synthesis of Hydroxylated Pyrrolidines from Benzoic Acid.
Authors: Hudlicky Tomas , Adams David R. , van Kempen Johannes , Hudlicky Jason R. 
Published: June 2014

Abstractipso‐Diol (II), prepared via a chemoenzymatic ipso‐dihydroxylation of benzoic acid, is used as a source of chirality in the synthesis of aza sugar derivative (XIV).
ChemInform Abstract: Oxyfadichalcones A—C: Three Chalcone Dimers Fused Through a Cyclobutane Ring from Tibetan Medicine Oxytropis Falcata Bunge.
Authors: Zhang Qing‐Ying , et al. et al. 
Published: June 2014

AbstractOxyfadichalcones A (I) and B (II) are unprecedented chalcone dimers fused by head‐to‐tail [2 + 2] cycloaddition, that has never been found previously in nature.
A survey of recent developments in parallel implementations of Gaussian elimination
Authors: Donfack Simplice , Dongarra Jack , Faverge Mathieu , Gates Mark , Kurzak Jakub , Luszczek Piotr , Yamazaki Ichitaro 
Published: June 2014

SummaryGaussian elimination is a canonical linear algebra procedure for solving linear systems of equations. In the last few years, the algorithm has received a lot of attention in an attempt to improve its parallel performance. This article surveys recent developments in parallel implementations of Gaussian elimination for shared memory architecture. Five different flavors are investigated. Three of them are based on different strategies for pivoting: partial pivoting, incremental pivoting, and tournament pivoting. The fourth one replaces pivoting with the Partial Random Butterfly Transformation, and finally, an implementation without pivoting is used as a performance baseline. The technique of iterative refinement is applied to recover numerical accuracy when necessary. All parallel implementations are produced using dynamic, superscalar, runtime scheduling and tile matrix layout. Results on two multisocket multicore systems are presented. Performance and numerical accuracy is analyzed. Copyright © 2014 John Wiley & Sons, Ltd.
The Role of Metacognitions in Expressed Emotion and Distress: A Study on Caregivers of Persons with First‐Episode Psychosis
Authors: Jansen Jens Einar , Harder Susanne , Haahr Ulrik Helt , Lyse Hanne‐Grethe , Pedersen Marlene Buch , Trauelsen Anne Marie , Simonsen Erik 
Published: June 2014

BackgroundIn first‐episode psychosis, the family is considered an important part in the recovery process. This is often accompanied by significant distress, which is acknowledged in numerous studies. However, little is known about the psychological factors involved.MethodOne hundred and twenty‐seven caregivers of persons with first‐episode psychosis completed a series of questionnaires aimed at investigating the contribution of expressed emotion and metacognitions to caregiver distress.ResultsLinear mixed model analysis found that emotional over‐involvement and metacognitions independently predicted caregiver distress. Mediation analysis using bootstrapping showed that emotional over‐involvement could be seen as mediating the effect of metacognitions on distress.ConclusionThe current study is a first step towards understanding the role of metacognitions in caregiver distress, thus opening up for the possibility of using interventions from ‘contextual behaviour therapies’. Implications and future studies are discussed. Copyright © 2014 John Wiley & Sons, Ltd.Key Practitioner Message

This study is the first attempt to address caregiver concerns from the perspective of contextual cognitive behavioural therapy.
The metacognitive framework for caregiver distress in first‐episode psychosis may help develop new therapeutic interventions to better support families.
The study proposes a psychological understanding of emotional over-involvement and caregiver distress.
High‐Performance Alkaline Direct Methanol Fuel Cell using a Nitrogen‐Postdoped Anode
Authors: Joghee Prabhuram , Pylypenko Svitlana , Wood Kevin , Bender Guido , O'Hayre Ryan 
Published: June 2014

AbstractA commercial PtRu/C catalyst postdoped with nitrogen demonstrates a significantly higher performance (∼10–20 % improvement) in the anode of an alkaline direct methanol fuel cell than an unmodified commercial PtRu/C catalyst control. The enhanced performance shown herein is attributed at least partially to the increased electrochemical surface area of the PtRu/C after postdoping with nitrogen.
An Illumina metabarcoding pipeline for fungi
Authors: Bálint Miklós , Schmidt Philipp‐André , Sharma Rahul , Thines Marco , Schmitt Imke 
Published: June 2014

AbstractHigh‐throughput metabarcoding studies on fungi and other eukaryotic microorganisms are rapidly becoming more frequent and more complex, requiring researchers to handle ever increasing amounts of raw sequence data. Here, we provide a flexible pipeline for pruning and analyzing fungal barcode (ITS rDNA) data generated as paired‐end reads on Illumina MiSeq sequencers. The pipeline presented includes specific steps fine‐tuned for ITS, that are mostly missing from pipelines developed for prokaryotes. It (1) employs state of the art programs and follows best practices in fungal high‐throughput metabarcoding; (2) consists of modules and scripts easily modifiable by the user to ensure maximum flexibility with regard to specific needs of a project or future methodological developments; and (3) is straightforward to use, also in classroom settings. We provide detailed descriptions and revision techniques for each step, thus giving the user maximum control over data treatment and avoiding a black‐box approach. Employing this pipeline will improve and speed up the tedious and error‐prone process of cleaning fungal Illumina metabarcoding data.
Habitat heterogeneity drives the geographical distribution of beta diversity: the case of New Zealand stream invertebrates
Authors: Astorga Anna , Death Russell , Death Fiona , Paavola Riku , Chakraborty Manas , Muotka Timo 
Published: June 2014

AbstractTo define whether the beta diversity of stream invertebrate communities in New Zealand exhibits geographical variation unexplained by variation in gamma diversity and, if so, what mechanisms (productivity, habitat heterogeneity, dispersal limitation, disturbance) best explain the observed broad‐scale beta diversity patterns. We sampled 120 streams across eight regions (stream catchments), spanning a north–south gradient of 12° of latitude, and calculated beta diversity (with both species richness and abundance data) for each region. We explored through a null model if beta diversity deviates from the expectation of stochastic assembly processes and whether the magnitude of the deviation varies geographically. We then performed multimodel inference analysis on the key environmental drivers of beta diversity, using Akaike's information criterion and model and predictor weights to select the best model(s) explaining beta diversity. Beta diversity was, unexpectedly, highest in the South Island. The null model analysis revealed that beta diversity was greater than expected by chance in all eight regions, but the magnitude of beta deviation was higher in the South Island, suggesting differences in environmental filtering and/or dispersal limitation between North and South Island. Habitat heterogeneity was the predominant driver of beta diversity of stream macroinvertebrates, with productivity having a secondary, and negative, contribution. This is one of the first studies accounting for stochastic effects while examining the ecological drivers of beta diversity. Our results suggest that local environmental heterogeneity may be the strongest determinant of beta diversity of stream invertebrates, more so than regional‐ or landscape‐scale variables.
Different morphology of Nuphar lutea in two contrasting aquatic environments and its effect on ecosystem engineering
Authors: Schoelynck Jonas , Bal Kris , Verschoren Veerle , Penning Ellis , Struyf Eric , Bouma Tjeerd , Meire Dieter , Meire Patrick , Temmerman Stijn 
Published: June 2014

ABSTRACTAquatic plants (macrophytes) can have a large effect on river hydraulics and geomorphology. Though, the extent to how plant morphological plasticity actively influences these feedbacks has received little scientific attention. The nymphaeid macrophyte species Nuphar lutea (L.) Smith is characterized by a distinct leaf duality. Floating leaves shade most of the submerged leaves thereby limiting light penetration in the water. Despite their apparent negligible photosynthetic role, submerged leaves of N. lutea remain intact during summer and contribute a significant part to the total biomass. Our results indicate that the submerged leaves are crucial in plant–flow interactions and hence in the engineering potential of the plant, i.e. the capacity to locally reduce flow velocities and to promote sedimentation, including organic matter deposition. Plant individuals growing in running river water were compared to individuals from adjacent oxbow lake water. The number and size of submerged leaves were significantly higher for river standing individuals and the accumulated sediment contained significantly more organic matter, total nitrogen and total phosphorus, and was characterized by a lower carbon/nitrogen ratio and a finer grain size. We therefore argue that the submerged N. lutea canopy in rivers has the ability to create a high‐nutrient, low hydrodynamic environment, resembling the conditions found in oxbow lakes. Copyright © 2014 John Wiley & Sons, Ltd.
Assessing Critical Thinking in Higher Education: Current State and Directions for Next‐Generation Assessment
Authors: Liu Ou Lydia , Frankel Lois , Roohr Katrina Crotts 
Published: June 2014

AbstractCritical thinking is one of the most important skills deemed necessary for college graduates to become effective contributors in the global workforce. The first part of this article provides a comprehensive review of its definitions by major frameworks in higher education and the workforce, existing assessments and their psychometric qualities, and challenges surrounding the design, implementation, and use of critical thinking assessment. In the second part, we offer an operational definition that is aligned with the dimensions of critical thinking identified from the reviewed frameworks and discuss the key assessment considerations when designing a next‐generation critical thinking assessment. This article has important implications for institutions that are currently using, planning to adopt, or designing an assessment of critical thinking.
Sensory characteristics and consumer liking of sausages with 10% fat and added rye or wheat bran
Authors: Arildsen Jakobsen Louise Margrethe , Vuholm Stine , Aaslyng Margit Dall , Kristensen Mette , Sørensen Karina Vejrum , Raben Anne , Kehlet Ursula 
Published: June 2014

AbstractImproving the nutritional profile of sausages through the addition of dietary fiber might affect appetite, sensory characteristics, and liking differently depending on the fiber source. This study investigates the sensory characteristics and consumer acceptance of sausages with 10% (w/w) fat and added rye or wheat bran. Sensory descriptive attributes (odor, appearance, texture, and flavor) of rye bran sausage (RBS) and wheat bran sausage (WBS) were evaluated by a trained sensory panel (n = 9). A sausage with wheat flour (WFS) and two commercial 20% (20%S) and 10% (10%S) (w/w) fat sausages were also included. Liking was investigated in consumer tests with two Danish target groups (49 children aged between six and nine and 24 parents). RBS and WBS were similar with regard to their sensory descriptive attributes, but the structure of these sausages was coarser and the color was more brown than the other sausages. RBS was similar to the commercial 10%S with regard to several sensory attributes and liking, whereas WBS was the least juicy, had a higher intensity of cereal odor and flavor, and the lowest liking.