bluuebunny/crossref_metadata_2025 huggingface dataset:
Mikrofluidik im “offenen Raum”: lokalisierte Prozesse an biologischen Oberflächen
Authors: Kaigala Govind V. , Lovchik Robert D. , Delamarche Emmanuel
Published: October 2012

Lokale Wechselwirkungen zwischen (Bio)chemikalien und biologischen Grenz‐/Oberflächen spielen eine wichtige Rolle in Gebieten wie der Oberflächenfunktionalisierung bis hin zur Zelltoxikologie. Diese Wechselwirkungen können mithilfe von Mikrofluidsystemen untersucht werden, die im “offenen Raum” arbeiten, d. h. ohne die gewöhnlich in der Mikrofluidik verwendeten geschlossenen Kanäle und Kammern. Diese aktuell entstehende Klasse von Verfahren lokalisiert chemische Reaktionen an Oberflächen biologischer Proben, ohne den Proben signifikante “Einschränkungen” wie Einbettung, Vorverarbeitungsschritte oder die Notwendigkeit von stabilisierenden Gerüsten aufzuerlegen. Sie öffnen damit neue Möglichkeiten für die Handhabung und Analyse von Wechselwirkungen mit biologischen Proben. Es werden drei Klassen von Mikrofluidsystemen vorgestellt, die im offenen Raum arbeiten, nämlich solche auf mikroelektrochemischer Basis, auf der Basis von Multiphasentransport und auf der Basis von hydrodynamischer Fokussierung von Flüssigkeiten.
Assessing the extent to which temporal changes in waterbird community composition are driven by either local, regional or global factors
Authors: Tománková Irena , Boland Helen , Reid Neil , Fox Anthony D.
Published: October 2012

Lough Neagh and Lough Beg Special Protection Area (SPA, hereafter Lough Neagh) is an important non‐estuarine site in Britain and Ireland for overwintering wildfowl. Multivariate analysis of the winter counts showed a state‐shift in the waterbird community following winter 2000/2001, mostly due to rapid declines in abundance (46–57% declines in the mean mid‐winter January counts between 1993–2000 and 2002–2009) of members of the diving duck guild (pochard Aythya ferina, tufted duck Aythya fuligula and goldeneye Bucephala clangula) and coot (Fulica atra), a submerged macrophyte feeder.

Only pochard showed correlations between declines at Lough Neagh and those of overall species flyway population indices to suggest that global changes could contribute to declines at the site. However, indices from the Republic of Ireland showed no overall decline in the rest of Ireland. Tufted duck indices at the site were inversely related to indices in Great Britain. Lough Neagh goldeneye indices were positively correlated with indices in the Republic of Ireland and Great Britain, suggesting that short‐stopping could contribute to declines at the site. Coot declines at Lough Neagh did not correlate with trends elsewhere, suggesting local factors involved in the decline.

These analyses indicate that although there are potentially different explanations for the dramatic declines in these four waterbird species at this site, the simultaneous nature of the declines across two feeding guilds strongly suggest that local factors (such as loss of submerged macrophytes and benthic invertebrates) were involved. An assessment of the food supply, local disturbance and other factors at Lough Neagh is required to find an explanation for the observed adverse trends in wintering numbers of the affected species.

This study highlights the potential of waterbird community structure to reflect the status of aquatic systems, but confirms the need to establish site‐specific factors responsible for the observed changes in abundance of key waterbird species at a site.

Copyright © 2012 John Wiley & Sons, Ltd.
Understanding public‐access cyberlearning projects using text mining and topic analysis
Authors: McArthur David , Crompton Helen
Published: October 2012

The federal government has encouraged open access to publicly funded federal science research results, but it is unclear what knowledge can be gleaned from them and how the knowledge can be used to improve scientific research and shape federal research policies. In this article, we present the results of a preliminary study of cyberlearning projects funded by the National Science Foundation (NSF) that address these issues. Our work demonstrates that text‐mining tools can be used to partially automate the process of finding NSF's cyberlearning awards and characterizing the fine‐grained topics implicit in award abstracts. The methodology we have established to assess NSF's cyberlearning investments should generalize to other areas of research and other repositories of public‐access documents.
International collaboration in Medical Research in Latin America and the Caribbean (2003–2007)
Authors: Chinchilla‐Rodríguez Zaida , Benavent‐Pérez Maria , de Moya‐Anegón Félix , Miguel Sandra
Published: October 2012

Bibliometric techniques and social network analysis are used to define the patterns of international medical research in Latin America and the Caribbean based on information available in the Scopus database. The objective was to ascertain countries' capacity to establish intra‐ and extraregional scientific collaboration. The results show that increased output and citations in medical research have heightened the region's presence and participation in the international scientific arena. These findings may be partly influenced by the inclusion of new journals in the database and regional initiatives that may have enhanced collaboration and knowledge transfer in science. The overall rise in partnering rates is slightly greater intra‐ than extraregionally. The possible effect of geographic, idiomatic, and cultural proximity is likewise identified. The “scientific dependence” of small or developing countries would explain their high collaboration rates and impact. The evidence shows that the most productive countries draw from knowledge generated domestically or by their neighbors, which would explain why impact is so highly concentrated in the regions with the greatest output. The need to incentivize intraregional relationships must be stressed, although international initiatives should also be supported.
On the role of poetic versus nonpoetic features in “kindred” and diachronic poetry attribution
Authors: Fegley Brent D. , Torvik Vetle I.
Published: October 2012

Author attribution studies have demonstrated remarkable success in applying orthographic and lexicographic features of text in a variety of discrimination problems. What might poetic features, such as syllabic stress and mood, contribute? We address this question in the context of two different attribution problems: (a) kindred: differentiate Langston Hughes’ early poems from those of kindred poets and (b) diachronic: differentiate Hughes’ early from his later poems. Using a diverse set of 535 generic text features, each categorized as poetic or nonpoetic, correlation‐based greedy forward search ranked the features and a support vector machine classified the poems. A small subset of features (∼10) achieved cross‐validated precision and recall as high as 87%. Poetic features (rhyme patterns particularly) were nearly as effective as nonpoetic in kindred discrimination, but less effective diachronically. In other words, Hughes used both poetic and nonpoetic features in distinctive ways and his use of nonpoetic features evolved systematically while he continued to experiment with poetic features. These findings affirm qualitative studies attesting to structural elements from Black oral tradition and Black folk music (blues) and to the internal consistency of Hughes’ early poetry.
Generalized Algorithm for Estimating Non‐Commensurate Fractional‐Order Models
Authors: Taskinen A. , Roinila T. , Vilkko M.
Published: October 2012

The dynamics of real systems are often of fractional‐order but typically approximated using integer‐order models for simplicity. Due to the major improvements in the area of fractional‐order calculus during recent years, the fractional‐order methods may be used more efficiently thus providing more accurate and realistic models. This paper presents an algorithm to estimate non‐commensurate fractional‐order models from frequency response data. Compared to the traditional method where only commensurate models are estimated, the presented technique provides more accurate models. The theory behind the method is shown and the results are illustrated by experimental measurements from a viscous elastic component, made from polydimethylsiloxane (PDMS), a silicon‐based organic polymer.
Buntaro Adachi (1865–1945): Japanese master of human anatomic variation
Authors: Watanabe Koichi , Shoja Mohammadali M. , Loukas Marios , Shane Tubbs R.
Published: October 2012

Buntaro Adachi (1865–1945) was a Japanese physician, anatomist, and anthropologist and is most remembered for his study on human anatomic variation. At the end of 19th Century, one of the main focuses in anthropology was the comparison between the races. In Japan, anthropological studies of the origin of the modern Japanese race were carried out by Adachi and others. Adachi believed that differences went beyond the bones that were commonly studied in his day and, therefore, investigated soft tissues of the body. Two products of his intense study of variation of human anatomy were Das Arteriensystem der Japaner (The Arterial System of the Japanese) published in 1928 and Das Venensystem der Japaner (The Venous System of the Japanese) published in 1933 and 1940. These books received much attention and were praised by anatomists and anthropologists around the world. Even now, these books are invaluable as references for human anatomic variation. Herein, we provide an overview of the life and achievements of Buntaro Adachi and to our knowledge, this is the first such review in the English language. Clin. Anat. 25:957–960, 2012. © 2012 Wiley Periodicals, Inc.
Individual transcriptional activity of estrogen receptors in primary breast cancer and its clinical significance
Authors: Gohno Tatsuyuki , Seino Yuko , Hanamura Toru , Niwa Toshifumi , Matsumoto Mitsuyo , Yaegashi Nobuo , Oba Hanako , Kurosumi Masafumi , Takei Hiroyuki , Yamaguchi Yuri , Hayashi Shin‐ichi
Published: October 2012

To predict the efficacy of hormonal therapy at the individual‐level, immunohistochemical methods are used to analyze expression of classical molecular biomarkers such as estrogen receptor (ER), progesterone receptor (PgR), and HER2. However, the current diagnostic standard is not perfect for the individualization of diverse cases. Therefore, establishment of more accurate diagnostics is required. Previously, we established a novel method that enables analysis of ER transcriptional activation potential in clinical specimens using an adenovirus estrogen response element–green fluorescence protein (ERE‐GFP) assay system. Using this assay, we assessed the ERE transcriptional activity of 62 primary breast cancer samples. In 40% of samples, we observed that ER protein expression was not consistent with ERE activity. Comparison of ERE activity with clinicopathological information revealed that ERE activity was significantly correlated with the ER target gene, PgR, rather than ER in terms of both protein and mRNA expression. Moreover, subgrouping of Luminal A‐type breast cancer samples according to ERE activity revealed that ERα mRNA expression correlated with ER target gene mRNA expression in the high‐, but not the low‐, ERE‐activity group. On the other hand, the low‐ERE‐activity group showed significantly higher mRNA expression of the malignancy biomarker Ki67 in association with disease recurrence in 5% of patients. Thus, these data suggest that ER expression does not always correlate with ER transcriptional activity. Therefore, in addition to ER protein expression, determination of ERE activity as an ER functional marker will be helpful for analysis of a variety of diverse breast cancer cases and the subsequent course of treatment.
Digestive cells from Mytilus galloprovincialis show a partial regulatory volume decrease following acute hypotonic stress through mechanisms involving inorganic ions
Authors: Torre Agata , Trischitta Francesca , Corsaro Carmelo , Mallamace Domenico , Faggio Caterina
Published: October 2012

The response of isolated digestive cells of the digestive gland of Mytilus galloprovincialis to hypotonic shock was studied using videometric methods. The isolated cells exposed to a rapid change (from 1100 to 800 mosmol kg−1) of the bathing solution osmolality swelled but thereafter underwent a regulatory volume decrease (RVD), tending to recover the original size. When the hypotonic stress was applied in the presence of quinine and glibenclamide, known inhibitors of swelling activated ion channels, the cells did not exhibit an RVD response; in addition, they showed a larger increase in size in respect to control cells. These observations suggest that the digestive cells of the digestive gland have the machinery to cope with the hyposmotic shock allowing them to exhibit a small but significant RVD preventing an excessive increase in cell size. The pharmacological treatment of digestive cells during the RVD experiments suggests that cell volume is regulated by K+ and Cl− efflux followed by an obliged water efflux from the cell. The involvement of organic osmolytes such as taurine and betaine seems to be excluded by NMR measurement on digestive cells. Copyright © 2012 John Wiley & Sons, Ltd.
High‐fat diet feeding induces sex‐dependent changes in inflammatory and insulin sensitivity profiles of rat adipose tissue
Authors: Estrany Maria E. , Proenza Ana M. , Gianotti Magdalena , Lladó Isabel
Published: October 2012

The aim of the study was to determine, in rats of both sexes, the effect of HF diet feeding on the expression of adipokines involved in inflammatory status and insulin sensitivity and on the levels of proteins involved in lipid handling of retroperitoneal adipose tissue. Eight‐week‐old Wistar rats of both sexes were fed a control diet (2.9% w/w fat) or an HF diet (30% w/w fat) for 14 weeks. Adiponectin, peroxisome proliferator–activated receptor γ and inflammatory marker mRNA levels were analyzed by real‐time polymerase chain reaction. Levels of insulin receptor, glucose transporter 4, carnitine palmitoyltransferase 1, fatty acid synthase, hormone‐sensitive lipase and lipoprotein lipase were determined by Western blot. HF diet feeding did not induce hyperphagia or body weight gain but did promote an increase in adiposity although only in male rats. HF diet impaired glucose tolerance and the expression of inflammatory and insulin sensitivity markers in adipose tissue of male rats, but not in female rats. Male rats seem to be more prone to disorders associated with an unbalanced composition of the diet, even in the absence of hyperphagia. In contrast, female rats counteract excessive fat intake by improving their ability to use lipid fuels, which limits adiposity and maintains insulin sensitivity. Copyright © 2012 John Wiley & Sons, Ltd.
Selective Hydrogenation of 1,3‐Butadiene and 1‐Butyne over a Rh/Chitosan Catalyst Investigated by using Parahydrogen‐Induced Polarization
Authors: Barskiy Danila A. , Kovtunov Kirill V. , Primo Ana , Corma Avelino , Kaptein Robert , Koptyug Igor V.
Published: October 2012

Hydrogenation of 1,3‐butadiene and 1‐butyne over the Rh/chitosan catalyst in gaseous and liquid phases was investigated by using the NMR and parahydrogen‐induced polarization technique. The Rh/chitosan system was a very selective catalyst for the partial hydrogenation of 1,3‐butadiene and 1‐butyne to 1‐ and 2‐butenes. The catalyst demonstrated high activity in the hydrogenation of 1‐butyne after its activation in the hydrogenation of 1,3‐butadiene. Therefore, the Rh/chitosan catalyst was used for the catalytic removal of 1,3‐butadiene and 1‐butyne from gaseous butene streams. Moreover, the syn‐ and anti‐addition of the hydrogen molecule to substrates proceeded in a pairwise manner in the gas phase heterogeneous hydrogenation as was demonstrated by parahydrogen‐induced polarization. However, in the liquid phase hydrogenation of 1‐butyne, both hydrogen atoms from the same hydrogen molecule were added to 1‐butyne only through the syn‐addition route.
Bimodification of Mesoporous Silicon Oxide by Coupled “In Situ Oxidation at the Interface and Ion Exchange” and its Catalytic Activity in the Gas‐Phase Toluene Oxidation
Authors: Poyraz Altug S. , Biswas Sourav , Genuino Homer C. , Dharmarathna Saminda , Kuo Chung‐Hao , Suib Steven L.
Published: October 2012

A bimodification synthesis method—“in situ oxidation at the interface (IOI) coupled with an ion exchange”—has been developed for the internal surface modification of mesoporous silicon oxide (MPS) templates. First, manganese oxide was formed at the internal surface of the MPS template through IOI. In the IOI method, high‐valent oxo‐anions of manganese (MnO4−) were used for the selective oxidation of poly(ethylene oxide) (PEO) groups of the Pluronic P123 (PEO20PPO70PEO20; PPO=poly(propylene oxide)) surfactant and they formed manganese oxide at the organic–inorganic (corona) interface. The oxide formation was restricted at the corona interface by a positively charged CTA+ (cetyltrimethylammonium) head group of the cationic surfactant CTABr. Then, the second modification of the MPS template was also performed by introducing promoter cations (Cs+, K+, or H+) through an ion exchange reaction between the cations and CTA+. The bimodified MPSMnX (X=Cs, K, or H) samples preserved the mesoporosity and high surface area of the MPS template. The bimodified MPSMnX samples were found to be more active, selective, and stable than the singly modified MPSMn sample for the gas‐phase oxidation of toluene.
ChemInform Abstract: Electronic, Magnetic Properties and Chemical Bonding in Layered Oxychalcogenides Ca4Fe2Cu2S2O6 and Ca4Fe2Cu2Se2O6 from First Principles Calculations.
Authors: Suetin D. V. , Ivanovskii A. L.
Published: October 2012

Electronic and magnetic properties of the title compounds are determined by first‐principle DFT (FLAPW‐GGA) calculations.
ChemInform Abstract: Systematic Study of the Elastic Properties of Mn3AC Antiperovskite with A: Zn, Al, Ga, In, Tl, Ge and Sn.
Authors: Medkour Y. , Roumili A. , Maouche D. , Saoudi A. , Louail L.
Published: October 2012

The elastic properties of the title antiperovskites are characterized by DFT pseudopotential plane wave calculations.
ChemInform Abstract: Long‐Range Incommensurate Charge Fluctuations in (Y,Nd)Ba2Cu3O6+x.
Authors: Ghiringhell G. , et al. et al.
Published: October 2012

Resonant soft X‐ray scattering is used to identify two‐dimensional charge fluctuations with an incommensurate periodicity of about 3.2 lattice units in the copper oxide planes of the title superconductors.
ChemInform Abstract: Synthesis, Crystal Structure and Magnetic Properties of the New One‐Dimensional Manganate Cs3Mn2O4.
Authors: Nuss Juergen , Senaris‐Rodriguez Maria A. , Dasari Prasad L. V. K. , Stahl Moritz , Jansen Martin
Published: October 2012

The title compound is synthesized by the azide/nitrate route from Mn2O3, CsNO3, and CsN3 (closed steel vessel, 773 K, 30 h) and characterized by powder and single crystal XRD, magnetic susceptibility measurements, and DFT calculations.
ChemInform Abstract: Fabrication Based on the Kirkendall Effect of Co3O4 Porous Nanocages with Extraordinarily High Capacity for Lithium Storage.
Authors: Hu Lin , Yan Nan , Chen Qianwang , Zhang Ping , Zhong Hao , Zheng Xinrui , Li Yan , Hu Xianyi
Published: October 2012

Co3O4 porous nanocages are prepared by thermal decomposition of Co3[Co(CN)6]2 truncated nanocubes at 400 °C for 1 h in air.
ChemInform Abstract: Enhanced Charge‐Transfer Kinetics by Anion Surface Modification of LiFePO4.
Authors: Park Kyu‐Sung , Xiao Penghao , Kim So‐Yeon , Dylla Anthony , Choi Young‐Min , Henkelman Graeme , Stevenson Keith J. , Goodenough John B.
Published: October 2012

Nitrogen and sulfur adsorption/chemisorption on LiFePO4 particles is characterized by DFT calculations and time of flight secondary ion mass spectrometry.
ChemInform Abstract: Exceptional Activity for Methane Combustion over Modular Pd@CeO2 Subunits on Functionalized Al2O3.
Authors: Cargnello M. , Delgado Jaen J. J. , Hernandez Garrido J. C. , Bakhmutsky K. , Montini T. , Calvino Gamez J. J. , Gorte R. J. , Fornasiero P.
Published: October 2012

Pd@CeO2 core‐shell structures deposited onto a modified hydrophobic alumina (obtained by reacting alumina with triethoxy(octyl)silane) exhibit exceptionally high activity for methane oxidation, with complete conversion below 400 °C and outstanding thermal stability up to 850 °C.
ChemInform Abstract: Mixed‐Phase Oxide Catalyst Based on Mn‐Mullite (Sm, Gd)Mn2O5 for NO Oxidation in Diesel Exhaust.
Authors: Wang Weichao , et al. et al.
Published: October 2012

The title mixed‐phase oxide catalysts for NO oxidation in diesel exhaust are prepared by co‐precipitation from an aqueous mixture containing Mn(OAc)2, Sr(NO3)2, Ce(NO3)3, Sm(NO3)3, Gd(NO3)3, (NMe4)OH, oxalic acid, and H2O2 (pH 9—10) followed by calcination at 500 °C and 800 °C for 8 h each.
ChemInform Abstract: Stabilization of Tetragonal HfO2 under Low Active Oxygen Source Environment in Atomic Layer Deposition.
Authors: Cho Deok‐Yong , et al. et al.
Published: October 2012

Approximately 13 nm thick HfO2 films are grown on Si wafers by atomic layer deposition under different ozone concentrations at 280 °C using Hf[N(Et)(Me)]4 as Hf precursor.
ChemInform Abstract: [(η2‐(Si/Ge)4)Zn(η2‐ (Si/Ge)4)]6‐ — Novel Zintl Clusters with Mixed Si/Ge Tetrahedra Bridged by a Zn Atom.
Authors: Waibel Markus , Henneberger Thomas , Jantke Laura‐Alice , Faessler Thomas F.
Published: October 2012

The precursor phase (I) is obtained from the elements (Ta container, 900 °C, 10 h).
ChemInform Abstract: High‐Connected Strategy of Polyoxometalates Towards Model of Core—Shell Nanostructure.
Authors: Yang Yanan , Gong Jingjing , Zhang Weisong , Zhang Hengchao , Zhang Lili , Liu Yang , Huang Hui , Hu Hailiang , Kang Zhenhui
Published: October 2012

Structural analysis reveals that the polyanions of (III), (VI), and (VII) are modified by Cu and/or Ag atoms with different connection numbers, that is 5, 10, and 12 for (III), (VI), and (VII), respectively.
ChemInform Abstract: Diastereomeric P,N‐Bidentate Amidophosphites Based on (S,S)‐ and (R,R)‐Hydrobenzoin as Ligands in the Pd‐Catalyzed Asymmetric Allylation.
Authors: Gavrilov K. N. , Chuchelkin I. V. , Zheglov S. V. , Groshkin N. N. , Novikov I. M. , Rastorguev E. A. , Davankov V. A.
Published: October 2012

New P,N‐bidentate amidophosphites based on (S,S)‐ and (R,R)‐hydrobenzoin are synthesized and evaluated for their efficiency as ligands in Pd‐catalyzed enantioselective allylic substitution reactions of (E)‐1,3‐diphenylallyl acetate (I).
ChemInform Abstract: Ni Nanoparticles: Mild and Efficient Catalyst for the Chemoselective Synthesis of 2‐Arylbenzimidazoles, 2‐Arylbenzothiazoles, and Azomethines.
Authors: Khurana Jitender M. , Sneha Sneha , Vij Kanika
Published: October 2012

Reaction of o‐mercaptoaniline (Ic) with aromatic aldehydes in the presence of polyvinylpyrrolidone‐stabilized Ni nanoparticles provides access towards benzothiazole derivatives (IIIc) ‐ (IIIf).
ChemInform Abstract: Stereoselective Intermolecular C—H Amination Reactions.
Authors: Lebel Helene , Trudel Carl , Spitz Cedric
Published: October 2012

Amination of benzylic and propargylic C—H bonds with the novel, chiral N‐mesyloxycarbamate (I) provides access to chiral N‐protected propargylic, benzylic, and cyclic amines in good yields and selectivities.
ChemInform Abstract: Optimized Conditions for Styrene Syntheses Using Suzuki—Miyaura Couplings and Catalyst‐Ligand‐Base Pre‐Mixes.
Authors: Henderson Laura , Knight David W. , Rutkowski Piotr , Williams Andrew C.
Published: October 2012

Pre‐mixes of catalyst, ligand and base are used for the Suzuki—Miyaura coupling of 2‐bromo‐benzylamines (I) with vinylboronic acids (II).
ChemInform Abstract: Microwave‐Assisted Atom Transfer Radical Addition of Polychlorinated Compounds to Olefins Without Addition of Metal Catalysts.
Authors: Kamijo Shin , Matsumura Shoko , Inoue Masayuki
Published: October 2012

The reaction under microwave irradiation in the presence of silicon carbide as a heating element affords the corresponding 1,3‐di‐ and trisubstituted adducts.
ChemInform Abstract: Cycloadditions of Methyl Dichloroacetate to Electrophilic Alkenes.
Authors: Hall H. K. Jr. , Childers Kenneth , Centeno‐Hall Trevor , Contreras Cristina , Mazel Brian , Menon Hari , Nguyen Van , Robertson Jeffrey , Bates Robert
Published: October 2012

A series of Michael‐initiated ring closing reactions of methyl dichloroacetate (II) with alkenes containing electron‐withdrawing groups, e.g. (I), (V), and (VIII), is reported.
ChemInform Abstract: Iodination of Activated Aromatic Compounds Using Nanostructure Solid Acid Catalyst.
Authors: Hosseini Abolfazl , Khalilzadeh Mohammad A. , Keipour Hoda , Tajbakhsh Mahmood
Published: October 2012

Nanoporous silica‐supported sulfuric acid effectively catalyzes the iodination of aromatic compounds.
ChemInform Abstract: Highly Selective Reduction of Nitroarenes by Iron(0) Nanoparticles in Water.
Authors: Dey Raju , Mukherjee Nirmalya , Ahammed Sabir , Ranu Brindaban C.
Published: October 2012

The reaction is conducted under environmentally benign conditions.
ChemInform Abstract: Asymmetric Henry Reaction Catalyzed by Novel Chiral Bioxazolines from Tartaric Acid.
Authors: Balaraman Kaluvu , Vasanthan Ravichandran , Kesavan Venkitasamy
Published: October 2012

Novel chiral bisoxazolines of type (I) are prepared.
ChemInform Abstract: Copper(II) trans‐Bis‐(glycinato): An Efficient Heterogeneous Catalyst for Cross Coupling of Phenols with Aryl Halides.
Authors: Verma Sanny , Kumar Neeraj , Jain Suman L.
Published: October 2012

The title complex, easily prepared by the solid state reaction of Cu(II)acetate and glycine, is found to be an efficient and recycable catalyst for the Ullmann type synthesis of diaryl ethers (III) via the cross coupling of phenols (I) with aryl bromides or iodides (II).
ChemInform Abstract: Bifunctional Homoallylic Carbamates from Chiral Silane Addition to in situ Generated N‐Acyl Iminium Ions.
Authors: Wu Jie , Zhu Kai‐Cheng , Yuan Ping‐Wei , Panek James S.
Published: October 2012

Three‐component aminocrotylation reaction of the novel silanes (I) and (XIII) leads to homoallylic carbamates bearing an unsaturated ester or allylic carbonate in good syn‐selectivity.
ChemInform Abstract: Ethyl Cyanoacetate: A New Cyanating Agent for the Palladium‐Catalyzed Cyanation of Aryl Halides.
Authors: Zheng Shuyan , Yu Chunhui , Shen Zhengwu
Published: October 2012

The presence of 2 or more strong electron‐withdrawing groups inhibits the cyanation and a nucleophilic aromatic substitution proceeds instead [cf.(VII)].
ChemInform Abstract: Copper(II)‐Catalyzed ortho‐Benzoxylation of 2‐Arylpyridines with Sodium Carboxylates.
Authors: Li Liping , Yu Peng , Cheng Jiang , Chen Fan , Pan Changduo
Published: October 2012

A plausible mechanism, which is consistent with the regioselectivity as well as with the impact of steric factors, is proposed.
ChemInform Abstract: Solvent‐Free Synthesis of Thiophenol Using Uncatalyzed Transfer Hydrogenation.
Authors: Zhou Shaodong , Qian Chao , Chen Xinzhi
Published: October 2012

A clean and sustainable transformation of aryl sulfonyl chlorides or sulfonamides into thiophenols is described.
ChemInform Abstract: Pyridine‐Mediated Palladium Acetate Catalyzed Dehalogenation of Biaryl Halides in Ionic Liquid System.
Authors: Xin Bingwei , Jia Chunxiao , Qi Zhixun
Published: October 2012

The dehalogenation of iodo‐ (I) and bromo‐biaryls (III) is efficiently achieved in the system K2CO3—Pd(O‐Ac)2—Py— [bmim]PF6, while chlorobiaryls remain intact.
ChemInform Abstract: Regioselective Synthesis of CF2Cl‐Substituted Biaryls by [3 + 3] Cyclocondensation of 1,3‐Bis(trimethylsilyloxy)‐1,3‐butadienes with 4‐Aryl‐1‐chloro‐1,1‐difluoro‐4‐(trimethylsilyloxy)‐3‐en‐2‐ones.
Authors: Specowius Verena , Kelzhanova Nazken , Abilov Zharylkasyn A. , Langer Peter
Published: October 2012

The convenient and regioselective synthesis of (III) involves TiCl4‐mediated [3+3] cyclocondensation of the title substrates.
ChemInform Abstract: Copper‐Catalyzed Decarboxylative C(sp2)—C(sp3) Coupling Reactions via Radical Mechanism.
Authors: Yang Hailong , Sun Peng , Zhu Yan , Yan Hong , Lu Linhua , Qu Xiaoming , Li Tingyi , Mao Jincheng
Published: October 2012

The decarboxylative coupling of cinnamic acids with arenes (II) and (IV) proceeds readily in the presence of CuO leading to alkenes (III) and (V) with high (E)‐selectivity.
ChemInform Abstract: A New Synthetic Approach Towards 7‐Substituted 2‐Alkyl‐2,3,4,9‐tetrahydro‐1H‐fluorenes.
Authors: Mezhnev V. V. , Geivandov R. Ch.
Published: October 2012

A facile synthetic approach towards hitherto unknown fluorene derivatives, key intermediates for the preparation of a novel class of liquid crystals, is presented.
ChemInform Abstract: Synthesis of Electron‐Poor Hexa‐peri‐hexabenzocoronenes.
Authors: Jones David J. , Purushothaman Balaji , Ji Shaomin , Holmes Andrew B. , Wong Wallace W. H.
Published: October 2012

The introduction of electron‐withdrawing CF3 groups has a remarkable influence on the frontier orbital energies of the HBC core.
ChemInform Abstract: A One‐Pot Synthesis of Aurones from Substituted Acetophenones and Benzaldehydes: A Concise Synthesis of Aureusidin.
Authors: Zhao Xiaolong , Liu Jie , Xie Zhixiang , Li Ying
Published: October 2012

The method is also applied to the synthesis of aureusidin (VIb), an inhibitor of iodothyronine deiodinase.
ChemInform Abstract: A Click Strategy for the Immobilization of MacMillan Organocatalysts onto Polymers and Magnetic Nanoparticles.
Authors: Riente Paola , Yadav Jagjit , Pericas Miguel A.
Published: October 2012

The Friedel—Crafts alkylation of N‐substituted pyrroles with α,β‐unsaturated aldehydes proceeds with higher yields using the polystyrene‐supported catalyst (II), but the catalyst (I) has a big advantage of easy separation due to its magnetic properties.
ChemInform Abstract: N‐Heterocyclization of Primary Amines with Dihalides Using Microreactors.
Authors: He Hongjie , Lin Qi , Liu Xiaofeng , Yang Yongtai , Zhou Yaming , Jia Yu , Gao Xiang
Published: October 2012

For the first time, N‐aryl azacycloalkanes (III) are prepared in a continuous‐flow laboratory‐scale microreactor.
ChemInform Abstract: Electro‐organic Synthesis of Nanosized Particles of 3‐Hydroxy‐3‐(1H‐indol‐3‐yl)indolin‐2‐one Derivatives.
Authors: Makarem S. , Rakhari A. R. , Mohammadi A. A.
Published: October 2012

An electrochemical method for the preparation of nanosized particles of 3‐hydroxyoxindole derivatives (III) is described.
ChemInform Abstract: Palladium(0)‐Catalyzed Dearomative Arylation of Indoles: Convenient Access to Spiroindolenine Derivatives.
Authors: Wu Ke‐Jia , Dai Li‐Xin , You Shu‐Li
Published: October 2012

A broad spectrum of substrates can be successfully transformed to the biologically interesting heterocyclic systems.
ChemInform Abstract: Facile and Convenient Synthesis of Functionalized Aryl‐Containing Isoindigo Derivatives via Substituted Indolin‐2‐one Carbene Dimerization.
Authors: Bogdanov Andrei V. , Mironov Vladimir F. , Musin Lenar I. , Musin Rashid Z. , Krivolapov Dmitry B. , Litvinov Igor A.
Published: October 2012

The reaction of N‐benzyl/aroylmethyl substituted isatins with hexaethyltriaminophosphine gives access to a small library of bis‐indolinylidene derivatives (II).
ChemInform Abstract: Asymmetric Construction of Functionalized Bicyclic Imides via [3 + 2] Annulation of MBH Carbonates Catalyzed by Dipeptide‐Based Phosphines.
Authors: Zhong Fangrui , Chen Guo‐Ying , Han Xiaoyu , Yao Weijun , Lu Yixin
Published: October 2012

Due to the biological importance of the products, the annulation is investigated on a gram scale: it takes place without loss of reactivity and enantioselectivity.
ChemInform Abstract: Synthesis of N‐Substituted Pyrroles under Catalyst‐ and Solvent‐Free Conditions.
Authors: Ramesh Katla , Murthy Sabbavarapu Narayana , Nageswar Yadavalli Venkata Durga
Published: October 2012

N‐Arylpyrroles (III) are easily formed by catalyst‐ and solvent‐free recyclization reaction of dimethoxytetrahydrofuran with various anilines.
ChemInform Abstract: Y(OTf)3‐Catalyzed Diastereoselective [3 + 2] Cycloaddition of N‐Tosyl‐aziridines and Imines: Efficient Synthesis of Multisubstituted Imidazolidines.
Authors: Wu Xingxing , Zhang Junliang
Published: October 2012

Lewis acid catalyzed ring‐opening of donor—acceptor substituted aziridines is followed by 1,3‐dipolar cycloaddition of the resulting azomethine ylides.
ChemInform Abstract: SiO2‐NHC‐CuI—Catalyzed N‐Arylation of Imidazoles with Arylboronic Acids under Base‐Free Reaction Conditions.
Authors: Liu Ping , Li Pinhua , Wang Lei
Published: October 2012

The reaction proceeds without any side products and works also with other N‐heterocycles such as pyrazole or benzimidazole.
ChemInform Abstract: One‐Pot, Three‐Step Copper‐Catalyzed Five‐/Four‐Component Reaction Constructs Polysubstituted Oxa(Thia)zolidin‐2‐imines.
Authors: Madaan Chetna , Saraf Shudddham , Priyadarshani Garima , Reddy P. Purushotham , Guchhait Sankar K. , Kunwar A. C. , Sridhar B.
Published: October 2012

The three‐component reaction of aldehydes, amines and phenylacetylene is followed by amidation with isocyanates and iodocyclization to produce the oxazole systems.
ChemInform Abstract: Synthetic Potentiality of Novel N‐Methyl Isoxazolidines in the Synthesis of 1,3‐Amino Alcohols under Microwave Irradiation.
Authors: Chakraborty Bhaskar , Sharma Prawin Kumar
Published: October 2012

A microwave‐assisted green synthesis of some novel N‐methylisoxazolidines and their microwave‐assisted reductive cleavage furnishing 1,3‐amino alcohols (V) is reported.
ChemInform Abstract: A Multicomponent Synthetic Strategy for Two‐Carbon‐Tethered 1,3‐Oxathiole—Indole Pairs.
Authors: Liu Jia‐Yan , Zhang Hao , Feng Bao‐Ming , Jiang Bo , Wang Shu‐Liang , Tu Shu‐Jiang
Published: October 2012

An efficient method for preparation of sp2‐C2 bridged oxathiole‐indole units is developed with a view to combining two biologically interesting motifs.
ChemInform Abstract: Convenient Synthesis of 1H‐Benzotriazolylalkylphenols.
Authors: Osyanin Vitalij A. , Sidorina Natalia E. , Klimochkin Yuri N.
Published: October 2012

The eco‐friendly method is general for ortho‐ (II) and para‐hydroxybenzyl alcohols (IV) as well as ammonium salt (VI) and allows for preparation of benzotriazolylalkylphenols (III), (V) and (VII), resp., of high purity in good yields.
ChemInform Abstract: Enantio‐ and Diastereoselective Synthesis of Substituted Tetrahydro‐1H‐isochromans Through a Dynamic Kinetic Resolution Proceeding under Dienamine Catalysis.
Authors: Orue Ane , Reyes Efraim , Vicario Jose L. , Carrillo Luisa , Uria Uxue
Published: October 2012

Starting from racemic material, a single diastereomer with high enantiomeric purity is formed via a dieneamine intermediate formed by the chiral secondary amine catalyst.
ChemInform Abstract: A Convenient Synthesis of 2‐Arylthiochromen‐4‐ones (Thioflavones) by Iodine‐Mediated Cyclization of 3‐Aryl‐1‐[2‐(1,1‐dimethylethylsulfanyl)phenyl]prop‐2‐en‐1‐ones.
Authors: Kobayashi Kazuhiro , Kobayashi Akihiro , Ezaki Kosuke
Published: October 2012

Thioflavones (VI) are prepared by iodine‐mediated cyclization of propenone derivatives (V), which are obtained by an easy two‐step sequence from halophenylethanones (I).
ChemInform Abstract: Copper(II) Triflate—Sodium Dodecyl Sulfate Catalyzed Preparation of 1,2‐Diphenyl‐2,3‐dihydro‐4‐pyridones in Aqueous Acidic Medium.
Authors: Lanari Daniela , Piermatti Oriana , Pizzo Ferdinando , Vaccaro Luigi
Published: October 2012

Optimized conditions allow the direct synthesis of title compounds from Danishefsky′s diene and N‐benzylideneanilines.
ChemInform Abstract: An Efficient and Rapid Intramolecular Aza‐Michael Addition of 2′‐Aminochalcones Using Ionic Liquids as Recyclable Reaction Media.
Authors: Chelghoum M. , Bahnous M. , Bouraiou A. , Bouacida S. , Belfaitah A.
Published: October 2012

Intramolecular Mannich type cyclization of o‐aminophenyl chalcones is efficiently achieved in [bmim]BF4 as the solvent to give dihydroquinolines (II) in good yields.
ChemInform Abstract: An Unexpected Multicomponent Reaction Leading to 2‐Arylpyrrolo[2,3,4‐kl]acridin‐1(2H)‐ones.
Authors: Kefayati Hassan , Narchin Fataneh , Rad‐Moghadam Kurosh
Published: October 2012

The process affords the title compounds (IV)(9 examples) instead of the expected spirocyclic system (V).
ChemInform Abstract: New Heterocyclic Systems Based on 1‐Hydrazino‐5,6,7,8‐tetrahydro[2,7]naphthyridine: 7,8,9,10‐Tetrahydro[1,2,4]triazolo[3,4‐a]‐ and 7,8,9,10‐Tetrahydro[1,2,4]triazolo[5,1‐a][2,7]naphthyridines.
Authors: Sirakanyan S. N. , Avetisyan N. G. , Noravyan A. S.
Published: October 2012

Reaction of the title hydrazinonaphthyridine (II) with triethyl orthoformate affords triazolo[3,4‐a][2,7]naphthyridine (IV).
ChemInform Abstract: Thio‐ and Selenocyanation Reactions of Quinone Imines—Derivatives of Pyrido[1,2‐a]benzimidazole.
Authors: Slabko Oleg Y. , Kachanov Andrey V. , Kaminskii Vladimir A.
Published: October 2012

A new, simple and efficient method for the electrophilic substitution of hydrogen in title quinoid structures by use of in situ formed triselenodicyanide or thiocyanogen is described.
ChemInform Abstract: Ultrasound Irradiated Synthesis of Bis‐pyrimidine Derivatives in Aqueous Media.
Authors: Dabholkar Vijay V. , Ansari Faisal Y.
Published: October 2012

The practical and convenient synthesis of bis‐pyrimidine derivatives (V) and (VII) involves a base‐mediated olefination and subsequent cyclocondensation of cinnamoyloxy derivatives (III) with (thio)urea or guanidine.
ChemInform Abstract: An Efficient, Greener, and Solvent‐Free One‐Pot Multicomponent Synthesis of 3‐Substituted Quinazolin‐4(3H)ones and Thienopyrimidin‐4(3H)ones.
Authors: Jalani Hitesh B. , Pandya Amit N. , Pandya Dhaivat H. , Sharma Jayesh A. , Sudarsanam V. , Vasu Kamala K.
Published: October 2012

A novel efficient one‐pot procedure is developed for the sequential reaction of substrates (I) or (V) with DMF dimethyl acetal and various anilines to give quinazolinones (IV) and thienopyrimidinones (VI), respectively.
ChemInform Abstract: Synthesis of 5‐Alkynylated Uracil—Morpholino Monomers Using Sonogashira Coupling.
Authors: Paul Sibasish , Nandi Bappaditya , Pattanayak Sankha , Sinha Surajit
Published: October 2012

Sonogashira coupling of 5‐iodouracil derivatives (I) with various terminal alkynes gives the title compounds (III) (18 examples) in good yields.
ChemInform Abstract: Copper‐Catalyzed Aerobic Oxidation of N‐Substituted Hydroxylamines: Efficient and Practical Access to Nitroso Compounds.
Authors: Frazier Charles P. , Bugarin Alejandro , Engelking Jarred R. , de Alaniz Javier Read
Published: October 2012

The reaction succeeds also in other solvents such as various alcohols or toluene.
ChemInform Abstract: Synthesis of an Isoindoline‐Annulated, Tricyclic Sultam Library via Microwave‐Assisted, Continuous‐Flow Organic Synthesis (MACOS).
Authors: Ullah Farman , Zang Qin , Javed Salim , Porubsky Patrick , Neuenswander Benjamin , Lushington Gerald H. , Hanson Paul R. , Organ Michael G.
Published: October 2012

A reaction sequence involving three consecutive microwave‐promoted continuous‐flow reaction steps is presented to synthesize the title compounds (V) and (VII).
ChemInform Abstract: Potassium tert‐Butoxide Mediated Regioselective Silaboration of Aromatic Alkenes.
Authors: Ito Hajime , Horita Yuko , Yamamoto Eiji
Published: October 2012

The reaction is conducted under transition metal free conditions.
ChemInform Abstract: Halogen‐Free Room‐Temperature Broensted Acidic Ionic Liquid [Hmim]+ HSO4‐ as a Recyclable Green “Dual Reagent” Catalysis for the Synthesis of Triarylmethanes (TRAMs).
Authors: Mukhopadhyay Chhanda , Datta Arup , Tapaswi Pradip Kumar
Published: October 2012

The protocol is chemoselective and ketones such as benzophenone or esters like ethyl formate do not react, even at prolonged time.
ChemInform Abstract: Absolute Configuration of the Meroditerpenoids Taondiol and Epitaondiol Diacetates by Vibrational Circular Dichroism.
Authors: Munoz Marcelo A. , Areche Carlos , Rovirosa Juana , San Martin Aurelio , Gordillo‐Roman Barbara , Joseph‐Nathan Pedro
Published: October 2012

The calculated spectra of alga meroditerpenoids taondiol diacetate (I) and epitaondiol diacetate (II) match confidently with the experimental ones.
ChemInform Abstract: Synthesis Using Microwave Irradiation, Characterization and Antibacterial Activity of Novel Deoxycholic Acid—Triazole Conjugates.
Authors: Yang Jie , Zhao Zhigang , Li Hui
Published: October 2012

The triazolyl‐functionalized deoxycholic acid esters (III) exhibit good inhibitory effect against B.
ChemInform Abstract: Synthesis of B‐Ring‐Modified Steroids Through BF3‐Promoted Rearrangement/Substitution of 6β‐Hydroxy‐5,19‐cyclosteroids.
Authors: Kranz Darius P. , Chiha Slim , Meier zu Greffen Aike , Neudoerfl Joerg‐Martin , Schmalz Hans‐Guenther
Published: October 2012

Me3Si‐allyl as the nucleophile gives the highest yield of the rearranged alcohol (XIII) after hydrolysis.
ChemInform Abstract: Tumescenamide C, an Antimicrobial Cyclic Lipodepsipeptide from Streptomyces sp.
Authors: Kishimoto Shinji , Tsunematsu Yuta , Nishimura Shinichi , Hayashi Yutaka , Hattori Akira , Kakeya Hideaki
Published: October 2012

Title compound (I) exhibits antimicrobial activity against Streptomyces species.
ChemInform Abstract: Antioxidant and Antinitric Oxide Components from Quercus glauca.
Authors: Shen Chien‐Chang , Hong Kun‐Yuan , Chen Jennifer , Zhang Li‐Jie , Lin Zhi‐Hu , Huang Hung‐Tse , Cheng Hui‐Ling , Kuo Yao‐Haur
Published: October 2012

Two new lignan glycosides (I) and (II) are isolated from Quercus glauca along with 14 known compounds.
ChemInform Abstract: Continuous Flow Photocatalysis Enhanced Using an Aluminum Mirror: Rapid and Selective Synthesis of 2′‐Deoxy and 2′,3′‐Dideoxynucleosides.
Authors: Shen Bo , Bedore Matthew W. , Sniady Adam , Jamison Timothy F.
Published: October 2012

A photochemical flow reactor is developed and applied for a photoinduced electron‐transfer deoxygenation of protected nucleosides (I) and (IV).
ChemInform Abstract: Stereoselective Total Synthesis of Atpenins A4 and B, Harzianopyridone, and NBRI23477 B.
Authors: Ohtawa Masaki , Sugiyama Kouhei , Hiura Tohru , Izawa Shujiro , Shiomi Kazuro , Omura Satoshi , Nagamitsu Tohru
Published: October 2012

Using a convergent approach involving the coupling reaction of a common iodopyridine with an aldehyde to the appropriate side chain, the stereoselective synthesis of atpenins A4 (Ia) and B (Ib), NBRI23477 B (Ic), and harzianopyridinone (II) is developed.
ChemInform Abstract: New, Efficient, and High‐Yielding Asymmetric Synthesis of (4S,5S)‐Cytoxazone.
Authors: Babu Kollapudi Chandra , Reddy Rapolu Naveen , Rao Salluri Yellamanda , Venkateshwarlu Palnati , Madhusudhan Gutta
Published: October 2012

Key step in the new asymmetric approach to (+)‐cytoxazone (VII) is a highly diastereoselective 1,2‐addition of anisylmagnesium bromide to the known chiral N‐sulfinimine precursor (I).
ChemInform Abstract: Speciation, Stability, and Reactions of Np(III‐VII) in Aqueous Solutions
Authors: Shilov V. P. , Gogolev A. V. , Fedoseev A. M.
Published: October 2012

Review: 130 refs.
ChemInform Abstract: Advances in the Theory of Superhydrophobic Surfaces
Authors: Wang Ben , Zhang Yabin , Shi Lei , Li Jing , Guo Zhiguang
Published: October 2012

Review: 172 refs.
ChemInform Abstract: Nickel Hydroxides
Authors: McBreen James
Published: October 2012

Review: as electrode material; 102 refs.
ChemInform Abstract: Engineering Plasmonic Gold Nanostructures and Metamaterials for Biosensing and Nanomedicine
Authors: Jin Yongdong
Published: October 2012

Review: 119 refs.
ChemInform Abstract: Recent Advances in Metal Oxide‐Based Electrode Architecture Design for Electrochemical Energy Storage
Authors: Jiang Jian , Li Yuanyuan , Liu Jinping , Huang Xintang , Yuan Changzhou , Lou Xiong Wen
Published: October 2012

Review: 131 refs.
ChemInform Abstract: Strategies for the Enantioselective Synthesis of Spirooxindoles.
Authors: Ball‐Jones Nicolas R. , Badillo Joseph J. , Franz Annaliese K.
Published: October 2012

Review: 85 refs.
ChemInform Abstract: Dotting the i′s in Three‐Component Biginelli‐Like Condensations Using 3‐Amino‐1,2,4‐triazole as a 1,3‐Binucleophile.
Authors: Sedash Yuriy V. , Gorobets Nikolay Yu. , Chabanov Valentin A. , Konovalova Irina S. , Shishkin Oleg V. , Desenko Sergey M.
Published: October 2012

Review: 58 refs.
ChemInform Abstract: Chalcogen‐Nitrogen π‐Heterocyclic Radical Anion Salts: The Synthesis and Properties
Authors: Gritsan N. P. , Zibarev A. V.
Published: October 2012

Review: 1,2,5‐chalcogenadiazoles; 57 refs.
ChemInform Abstract: The Enterprise of Synthesis: From Concept to Practice
Authors: Hanessian Stephen
Published: October 2012

Review: concerning the synthesis of natural products; about 150 refs.
ChemInform Abstract: Victor Grignard and Paul Sabatier: Two Showcase Laureates of the Nobel Prize for Chemistry
Authors: Kagan Henri B.
Published: October 2012

Review: 26 refs.
ChemInform Abstract: Asymmetric Counteranion‐Directed Catalysis (ACDC): A Remarkably General Approach to Enantioselective Synthesis
Authors: Mahlau Manuel , List Benjamin
Published: October 2012

Review: 85 refs.
ChemInform Abstract: Nucleotides and Nucleic Acids; Oligo‐ and Polynucleotides
Authors: Loakes David
Published: October 2012

Review: 965 refs.
ChemInform Abstract: Biosynthetic Medicinal Chemistry of Natural Product Drugs
Authors: Koehn Frank E.
Published: October 2012

Review: 104 refs.
ChemInform Abstract: N‐Heterocyclic Carbene Copper Catalyzed Carboxylation of C—B and C—H Bonds with Carbon Dioxide
Authors: Zhang Liang , Hou Zhaomin
Published: October 2012

Review: 44 refs.
ChemInform Abstract: Coordination Polymers Containing Rotaxane Linkers
Authors: Vukotic V. Nicholas , Loeb Stephen J.
Published: October 2012

Review: ca. 50 refs.
ChemInform Abstract: Characterization of Supramolecular Polymers
Authors: Liu Yiliu , Wang Zhiqiang , Zhang Xi
Published: October 2012

Review: 70 refs.
ChemInform Abstract: The Chemistry of Four‐Membered Aromatics
Authors: Matsuo Yutaka , Maruyama Masashi
Published: October 2012

Review: 56 refs.
ChemInform Abstract: When Cyclodextrins Meet Click Chemistry
Authors: Faugeras Pierre‐Antoine , Boens Benjamin , Elchinger Pierre‐Henri , Brouillette Francois , Montplaisir Daniel , Zerrouki Rachida , Lucas Romain
Published: October 2012

Review: ca. 150 refs.
ChemInform Abstract: Removing Ruthenium Residues from Olefin Metathesis Reaction Products.
Authors: Vougioukalakis Georgios C.
Published: October 2012

Review: ca. 200 refs.
Technical Factors Affecting the Size Reduction Result for Impact Milling of Medium‐Volatile Bituminous Coal
Authors: Lehmann Bastian , Schneider Diana , Schröder Hans‐Werner , Wollenberg Ralf , Repke Jens‐Uwe
Published: October 2012

Bei der Prallzerkleinerung von Gasflammkohlen in einer Universal‐Feinprallmühle kann das Zerkleinerungsergebnis durch Variation maschinentechnischer Paramater wie der Rotorgeometrie, der Geometrie der Austragssiebe sowie durch die Rotorumfangsgeschwindigkeit beeinflusst werden. Wichtige Kenngrößen sind hierbei der Zentralwert und die Breite der Partikelgrößenverteilung sowie die Energieausnutzung. Bei der untersuchten Feinprallmühle wird das Zerkleinerungsergebnis im Wesentlichen durch die Rotorumfangsgeschwindigkeit und die Sieblochgeometrie der Austragssiebe beeinflusst, wobei über die Art der Austragssiebe die Breite der Produktpartikelgrößenverteilung gezielt beeinflusst werden kann.