bluuebunny/crossref_metadata_2025 huggingface dataset:
Synthesis, characteristics, and phase behavior of a thermosensitive and pH‐sensitive polyelectrolyte
Authors: Zhou Wenting , An Xueqin , Gong Jun , Shen Weiguo , Chen Zhiyun , Wang Xiaoyong
Published: March 2011

A series of poly(N‐isopropylacrylamide‐co‐methacrylic acid‐co‐octadecyl acrylate) (poly(NIPAM‐co‐MAA‐co‐ODA)) with different monomer molar ratios was synthesized. Critical micelle concentration (CMC) of the polyelectrolyte solution was determined and the CMC increase with methacrylic acid content in the polyelectrolyte. The phase behaviors of the polyelectrolyte solution were studied, and the effects of various factors on the phase transition were discussed. The experimental results indicate that the lower critical solution temperature and the phase transition pH depend on the monomer molar ratio in the polyelectrolyte. Effect of polyelectrolyte concentration on phase transition pH was studied, and results shown that the phase‐transition pH is independent of the polyelectrolyte concentration. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2011
Plasticization of poly‐L‐lactide for tissue engineering
Authors: Cuénoud Matthieu , Bourban Pierre‐Etienne , Plummer Christopher J.G. , Månson Jan‐Anders E.
Published: March 2011

Plasticization of medical grade poly‐L‐lactide (PLLA) by addition of polyethylene glycol (PEG) with various molar masses has been evaluated as means of producing low stiffness matrices for bioresorbable scaffolds for soft‐tissue engineering applications. As reported previously, the Tg of injection molded specimens of the PLLA/PEG blends decreased strongly with PEG content, so that at PEG contents of 15 and 25 wt % it became significantly lower than normal human body temperature, implying an essentially rubber‐like mechanical response in vivo. The degree of crystallinity of the moldings also increased strongly with PEG content, reaching a maximum of about 60 wt % at 25 wt % PEG. Moreover, after the immersion in phosphate‐buffered saline for 5 days in 37°C to simulate conditions in vivo, the moldings with the highest PEG contents showed increased water uptake and, for relatively low molar mass PEG, significant mass loss, associated with phase separation and leaching of the PEG. Blends with relatively low PEG contents also showed large increases in their degree of crystallinity. The implications of these changes for the in vivo performance of the blends and their potential for development as matrices for bioresorbable scaffolds are discussed in the light of results from a series of PLLA/PEG copolymers. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2011
Strengthening and toughening of thermoplastic polyolefin elastomer using polypropylene‐grafted multiwalled carbon nanotubes
Authors: Li Chaoqun , Deng Hua , Wang Ke , Zhang Qin , Chen Feng , Fu Qiang
Published: March 2011

In this article, it is demonstrated that simultaneously strengthened and toughened nanocomposites based on polypropylene/EPDM thermoplastic elastomer (TPO) matrix can be achieved through enhanced adhesion between MWNTs and polymer matrix by using PP grafted multiwalled carbon nanotubes (MWNTs). To improve the interface between filler and matrix, MWNTs were treated with acid, or covalently linked to polypropylene. The chemical and morphological transformation of the modified MWNTs, and its effect on the morphology and mechanical properties of the composites are investigated. The strengthening and toughening mechanism is discussed regarding the structural property relationship. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2011
Bahnbestimmung als Randwertproblem. I
Authors: Bucerius H.
Published: March 2011

Der rein dynamische Teil der Gaussschen Bahnbestimmungsmethode wird in vektorieller Schreibweise als eine Randwertaufgabe formuliert und die zugehörige Integralgleichung aufgestellt. Die verschiedenen Näherungsausdrücke für die Verhältnisse der Dreiecksflächen werden von diesem Standpunkt charakterisiert und erweitert. Die Lösung des Randwertproblems durch sukzessive Approximation entspricht dem Sektor‐zu‐Dreieck‐Verfahren, dessen Konvergenz sowohl vom Integralgleichungs‐Standpunkt als auch nach einer differentiellen Methode bei Zugrundelegung der Gauss‐Fabritiusschen Formulierung des Iterationsverfahrens untersucht wird.
Bahnbestimmung als Randwertproblem. II
Authors: Bucerius H.
Published: March 2011

Nach allgemeiner Kritik der älteren Konvergenzbetrachtungen zur Gaussschen Methode auf Grund von Abschätzungen nach Potenzen der Zwischenzeiten werden Rechenschemata für 3 und 4 Beobachtungen mit einem Iterationsverfahren ohne Gausssche Gleichung aufgestellt und an Beispielen von kleinen Planeten praktisch erprobt. In der folgenden Konvergenztheorie, die eine Erweiterung der Untersuchung im I. Teil darstellt, wird die Berechtigung des Verfahrens für das Hauptanwendungsgebiet der kleinen Planeten bewiesen. Einige für die Theorie und Praxis der Bahnbestimmung wichtige Folgerungen werden anschließend diskutiert.
Physische Beobachtungen von Kometen. VII
Authors: Beyer M.
Published: March 2011

Der vorliegende Bericht setzt eine seit 1933 laufende Serie von Veröffentlichungen über physische Beobachtungen von Kometen fort und schließt an Astron. Nachr. 275.237 (1947), Mitteilungen der Hamburger Sternwarte Nr. 61, an. Er umfaßt die Beobachtungen von 15 Kometen aus dem Zeitabschnitt 1946 Juni bis 1949 April, die in der gleichen Weise mitgeteilt und diskutiert werden wie bisher. Das Hauptgewicht ist wieder auf eine möglichst genaue Bestimmung der Gesamthelligkeiten gelegt, um die Beziehungen zwischen der Helligkeitsentwicklung und dem Sonnenabstand der einzelnen Kometen ableiten und vergleichen zu können. Zu diesem Zweck sind die auf die Einheit der Abstände r und Δ des Kometen von der Sonne bzw. von der Erde bezogenen Normalhelligkeiten H0 und die den Helligkeitsverlauf bestimmenden Exponenten n2 des Sonnenabstandes r für die verschiedenen Kometen aus den Beobachtungen abgeleitet. Da das vom Verfasser benutzte Beobachtungsverfahren fast stets größere Helligkeiten liefert, als sie die sonst üblichen Methoden ergeben, sind zum Vergleich auch Gesamthelligkeiten von Kugelhaufen und Spiralnebeln auf dieselbe Weise beobachtet worden. Diese Ergebnisse stimmen recht gut mit den neuesten photovisuellen Messungen überein, so daß kein Anlaß zur Änderung des Beobachtungsverfahrens oder zu einer Korrektion der damit gewonnenen Größen besteht. Neben Messungen und Schätzungen der Kernhelligkeiten und des jeweiligen Durchmessers der Komaist auch der Schweifentwicklung besondere Beachtung geschenkt. In Einzelfällen sind Beziehungen zwischen dem Sonnenabstand des Kometen und der Ablenkung seines Schweifs von der Richtung des Strahlungsdrucks der Sonne festgestellt. Von den beiden Kometen Bester (1947k) und Honda‐Bernascont (1948g) wurden auch mehrere Objektivprismen‐Spektrogramme erhalten. Zum Schluß wird auf Grund gleichzeitiger Beobachtungen von mehreren Kometen das Bestehen von Beziehungen zwischen der Sonnentätigkeit und sekundären Schwankungen der Kometenhelligkeit eindeutig nachgewiesen. Bestimmt man für die einzelnen Kometen unter Berücksichtigung ihrer heliozentrischen Lage die für sie gültigen Kurven der Sonnenflecken‐Relativzahlen, so zeigen diese eine auffallende Parallelität mit den sehr unregelmäßigen und oft rasch verlaufenden Helligkeitsschwankungen der Kometen. Da auch in größeren Sonnenabständen weder Verzögerungen dieser Erscheinungen noch Veränderungen ihrer Amplituden erkennbar sind, kann es sich nur um reine Strahlungseffekte handeln. Als Quellen dieser Strahlung kommen die größeren Tätigkeitsherde auf der Sonnenoberfläche in Betracht, wobei jedoch nicht allein die zentralen, sondern in geringerem Umfange auch die in den Randgebieten der Sonnenscheibe liegenden Störungsfelder wirksam sind.
Über den Lichtwechsel des langperiodischen Veränderlichen TY Cephei
Authors: Hassenstein W.
Published: March 2011

Der Helligkeitswechsel von TY Cep wird auf Grund des gesamten verfügbaren Beobachtungsmaterials — einer photometrischen Reihe des Verfassers und 7 weiterer Reihen — untersucht. Die Lichtkurve verläuft in dem betrachteten Zeitraum von 30 Jahren näherungsweise periodisch in einer Periode von 330d Dauer, nimmt aber von Zyklus zu Zyklus sehr wechselnde Formen an. Hauptmerkmal der Kurvengestalt ist das rhythmische Auftreten ausgeprägter Hauptminima und breiter, vielfach durch Nebenminima geteilter Maxima. Der Veränderliche ist trotz einer gewissen Verwandtschaft mit den RV Tauri‐Sternen als Mitglied der Mira‐Klasse zu betrachten, und zwar einer nicht häufig vorkommenden, nach H. Ludendorff als R Centauri‐Klasse bezeichneten Unterklasse, für die eine Helligkeitskurve der Form γ charakteristisch ist.
Controlled ex‐vivo plasma hydrolysis of valaciclovir to acyclovir demonstration using tandem mass spectrometry
Authors: Goswami Dipanjan , Khuroo Arshad , Gurule Sanjay , Modhave Yogesh , Monif Tausif
Published: March 2011

Plasma estimation of valaciclovir, an antiviral drug, is challenging due to both in‐vivo and ex‐vivo hydrolysis to active metabolite acyclovir. A simultaneous method is described involving the solid‐phase ion‐exchange extraction procedure requiring 100 μL of plasma volume, a reverse‐phase Lichrosphere RP Select B (125 × 6 mm, 5 μm) column and isocratic mobile phase to achieve the desired chromatographic separation. ESI‐MS/MS multiple reaction monitoring in positive polarity, detected mass pairs for valaciclovir (m/z 325.5 → 152.2), acyclovir (m/z 226.3 → 152.2) and respective internal standards valganciclovir (m/z 307.1 → 220.3) and acyclovir‐d4 (m/z 230.2 → 152.0). Fully fledged method validation was evaluated as per current regulatory requirements and results were deemed acceptable. The plasma samples showed extensive hydrolysis of valaciclovir when collected or processed at room temperature, without buffer stabilization prior to storage at −15°C. Our results showed that using prechilled K3EDTA vacutainers immersed in an iced‐water bath during blood sample collection, and addition of 50% orthophosphoric acid solution to plasma samples prior to storage at −50°C for at least 120 days controlled the hydrolysis of valaciclovir to acyclovir. While monitoring drug absorption into systematic circulation, the valaciclovir to acyclovir formation ratio was improved to 1:20 in healthy volunteers for the first time. Copyright © 2011 John Wiley & Sons, Ltd.
Background and Adjustment Capacity of Sexually Abused Girls and their Perceptions of Intervention
Authors: Deb Sibnath , Mukherjee Aparna
Published: March 2011

The main objective of the study was to understand the adjustment capacity of sexually abused girls in the age group 13–18 years in Kolkata, India. The study also attempted to understand how the sexually abused girls perceived the psychological interventions, i.e. individual and group counselling, which they had received. A group of 120 sexually abused Indian girls and 120 non‐sexually abused Indian schoolgirls residing in Kolkata Metropolitan City and its suburbs were studied. Findings revealed that the majority of the sexually abused girls came from nuclear and poor families (93.3%) with a low educational background. More than two‐thirds (73.3%) were lured with promises of job prospects, marriage and a better life and then abused sexually. Emotional and social adjustment capacity of sexually abused and non‐sexually abused girls differed significantly (p < 0.05). Overall, the perception of more than two‐thirds of the sexually abused girls of the rehabilitation homes they lived in was found to be positive. Further, the girls who reported they gained considerably from counselling had a better adjustment capacity compared to those who reported they did not benefit from counselling. Copyright © 2011 John Wiley & Sons, Ltd.
Making Decisions about Parental Mental Health: An Exploratory Study of Community Mental Health Team Staff
Authors: Rouf Khadj , Larkin Michael , Lowe Geoff
Published: March 2011

Adult mental health problems can impact on parents, and research highlights that their children are at higher risk of developing mental health problems. In extreme cases, mental health problems are associated with a risk of fatal child abuse. Despite this, there are few studies exploring clinical decision‐making by adult mental health professionals.

‘In extreme cases, mental health problems are associated with a risk of fatal child abuse’

This study used qualitative methods to explore Community Mental Health Team (CMHT) workers' experiences of decision‐making in the interface between mental health and child welfare. Workers were interviewed about their experiences of clinical decision‐making regarding child welfare. Interviews and accounts were analysed using Interpretative Phenomenological Analysis. Influences on decision‐making were explored and triangulated with the accounts of Named Nurses for Child Protection.

The findings revealed that CMHT participants were aware of their responsibilities towards children, but a complex synthesis of factors impacted on their sense‐making about risk and welfare. Three superordinate themes emerged: the tensions of working across systems; trying to balance the perceptions and feelings involved in sense‐making; and the role that interpersonal dynamics play in the understanding and management of risk. This paper focuses in particular on perceptions and feelings. Copyright © 2011 John Wiley & Sons, Ltd.

‘A complex synthesis of factors impacted on their sense‐making about risk and welfare’
Phytochemicals and Biological Activities of Dipsacus Species
Authors: Zhao Ya‐Min , Shi Yan‐Ping
Published: March 2011

The plants of genus Dipsacus, with a wide distribution in Europe, Asia, and Africa, have been used as medicinal agents to treat several diseases, including lime disease, fibromyalgia, bone fracture, and abortion, and especially the Alzheimer's disease and cancer. A large number of studies on plants of genus Dipsacus has revealed cytoprotective properties, inhibition of HIV‐1 reverse transcriptase, antinociceptive, and antimicrobial effects, etc. This review compiles all chemical constituents isolated, mainly triterpenoids, iridoids, phenolics, and alkaloids, from the genus Dipsacus over the past few decades together with their structural features, biological activities, and structureactivity relationships.
Patagonicosides B and C, Two Antifungal Sulfated Triterpene Glycosides from the Sea Cucumber Psolus patagonicus
Authors: Careaga Valeria P. , Muniain Claudia , Maier Marta S.
Published: March 2011

Two new triterpene glycosides, patagonicosides B and C (2 and 3, resp.), together with the known patagonicoside A (1), have been isolated from the EtOH extract of the sea cucumber Psolus patagonicus. The structures of the new compounds were established on the basis of extensive NMR spectroscopic analysis (1H‐ and 13C‐NMR, 1H,1H‐COSY, HMBC, HSQC, TOCSY, and NOESY), HR‐ESI‐MS data, and chemical transformations. Compounds 1–3 and their desulfated analogs showed antifungal activities against the phytopathogenic fungus Cladosporium cladosporoides in a dose‐dependent fashion.
Three New Constituents from the Roots of Erythrina variegata and Their Antibacterial Activity against Methicillin‐Resistant Staphylococcus aureus
Authors: Tanaka Hitoshi , Atsumi Ikunori , Shirota Osamu , Sekita Setsuko , Sakai Eiji , Sato Masaru , Murata Jin , Murata Hiroko , Darnaedi Dedy , Chen Ih‐Sheng
Published: March 2011

Two new isoflavonoids, eryvarins V and W (1 and 2, resp.), and a new chromen‐4‐one derivative, eryvarin X (3), along with three known isoflavonoids, 4–6, were isolated from the roots of Erythrina variegata. Their structures were established by spectroscopic analyses. Compound 1 is a rare naturally occurring isoflavanone which possesses a OH group at C(3). Among the new compounds 1–3, 2 exhibited a potent antibacterial activity against methicillin‐resistant Staphylococcus aureus (MRSA) strains.
Chemotaxonomic Significance of the Essential Oils of 18 Ferula Species (Apiaceae) from Iran
Authors: Kanani Mohammad Reza , Rahiminejad Mohammad Reza , Sonboli Ali , Mozaffarian Valiollah , Kazempour Osaloo Shahrokh , Nejad Ebrahimi Samad
Published: March 2011

To evaluate the chemotaxonomic significance of the essential oils of 23 populations of 18 Iranian Ferula species, the chemical composition of the oils was investigated by GC/FID and GC/MS. Altogether, 84 constituents, representing 81.3–99.7% of the total composition of the oils, have been identified. The composition of six species of the genus, i.e., F. oopoda, F. foetida, F. behboudiana, F. diversivittata, F. galbaniflua, and F. hezarlalehzarica, has been reported for the first time. The main constituents identified were α‐terpinyl acetate (73.3%), 2,3,4‐trimethylthiophene (2; 49.0%), sabinene (75.3%), verbenone (5; 69.4%), β‐pinene (59.0–66.3%), and (Z)‐β‐ocimene (41.7%). Cluster analysis (CA) of the percentage content of the essential oil components of the Ferula species resulted in the characterization of four groups, i.e., taxa containing either i) monoterpene hydrocarbons, ii) oxygenated monoterpenes, iii) organosulfur compounds, or iv) monoterpene, sesquiterpene, and aliphatic hydrocarbons as the principal classes of compounds. Based on the results obtained, the chemical independence of F. hirtella from F. szowitsiana and of F. galbaniflua from F. gummosa at the specific level was concluded and their positions as distinct species were confirmed. The chemotaxonomic relationships among the representatives of the genus Ferula have been discussed in detail.
Environmental and Seasonal Impacts on the Chemical Composition of Satureja horvatii Šilić (Lamiaceae) Essential Oils
Authors: Lakušić Branislava , Ristić Mihailo , Slavkovska Violeta , Milenković Marina , Lakušić Dmitar
Published: March 2011

The chemical composition of the essential oils of Satureja horvatii Šilić from two natural habitats (Mt. Orjen and Mt. Lovćen in Montenegro) and from cultivated plants (Belgrade, Serbia) were characterized. For the latter, plants from the locus classicus, i.e., Orjenske Lokve (Mt. Orjen), were transferred to Belgrade and, after three years of cultivation, the chemical composition of their essential oils at different phenological stages was analyzed. The essential oils were obtained from the aerial parts of the plants by hydrodistillation and analyzed by GC and GC/MS. The yields and chemical compositions of the S. horvatii oils showed significant differences between the plants collected in the natural habitats and those from cultivation, as well as between the plants at different phenological stages. In the populations from the natural habitats, growing in Mediterranean conditions, the most abundant oil constituents were the phenols thymol (63.7% in the samples from Mt. Orjen) or carvacrol (68.1% in the samples from Mt. Lovćen), while the oils from the cultivated plants (Belgrade), growing in continental conditions, were dominated by linalool (up to 65.8 and 55.9% in average). The basic characteristics of the essential oil from plants at the early phenological stage (before flowering) were high percentages of linalool (37.4%), thymol (27.3%), and carvacrol (12.2%). At the stage of flowering, the percentage of linalool (56.6–57.5%) increased, while those of thymol (15.5–15.8%) and carvacrol (1.4–1.5%) significantly decreased. The essential oil of plants in the full stage of fruiting was characterized by the domination of linalool (58.4 and 65.8%) and lower percentages of thymol (7.6 and 1.3%) and carvacrol (0.7 and 0.1%). In conclusion, the oil composition of S. horvatii was found to depend on the pedoclimatic conditions of the habitat and the phenological stage of the plants.
Chemical Composition and Antimicrobial Activity of the Essential Oil of Endemic Dalmatian Black Pine (Pinus nigra ssp. dalmatica)
Authors: Politeo Olivera , Skocibusic Mirjana , Maravic Ana , Ruscic Mirko , Milos Mladen
Published: March 2011

The chemical composition and the antimicrobial activity of the essential oil isolated from the needles of endemic Dalmatian black pine (Pinus nigra ssp. dalmatica) from Croatia were investigated. The chemical composition of the essential oil was determined by GC and GC/MS analyses, and the main compounds identified were α‐pinene, β‐pinene, germacrene D, and β‐caryophyllene. Disc‐diffusion and broth‐microdilution assays were used for the in vitro antimicrobial screening. The Dalmatian black pine essential oil exhibited a great potential of antibacterial activity against Gram‐positive bacteria (MIC=0.03–0.50% (v/v)) and a less pronounced activity against Gram‐negative bacteria (MIC=0.12–3.2% (v/v)). The volatile compounds also inhibited the growth of all fungi tested, including yeast.
Exploring the Role of Chirality in Nucleic Acid Recognition
Authors: D'Alonzo Daniele , Guaragna Annalisa , Palumbo Giovanni
Published: March 2011

The study of the base‐pairing properties of nucleic acids with sugar moieties in the backbone belonging to the L‐series (β‐L‐DNA, β‐L‐RNA, and their analogs) are reviewed. The major structural factors underlying the formation of stable heterochiral complexes obtained by incorporation of modified nucleotides into natural duplexes, or by hybridization between homochiral strands of opposite sense of chirality are highlighted. In addition, the perspective use of L‐nucleic acids as candidates for various therapeutic applications, or as tools for both synthetic biology and etiology‐oriented investigations on the structure and stereochemistry of natural nucleic acids is discussed.
Stereoselective Palladium Catalyzed Allylic Phosphination
Authors: Duraud Amélie , Jacquet Olivier , Fiaud Jean‐Claude , Guillot Régis , Toffano Martial
Published: March 2011

Chiral enantiopure 2‐5‐diphenylphospholane borane 8 is an interesting nucleophile for allylic phosphination in the presence of palladium complexes to form CP bonds. A highly diastereoselective allylic phosphination reaction was realized using chiral palladium‐DACH‐naphthyl (DACH=1,2‐diaminocyclohexane) ligand as the catalyst system. The secondary phosphine‐borane complex could be classified as a NuL type nucleophile.
χ‐Octamolybdate [MoV4MoVI4O24]4−: An Unusual Small Polyoxometalate in Partially Reduced Form from Nonaqueous Solvent Reduction
Authors: Wang Longsheng , Yin Panchao , Zhang Jin , Hao Jian , Lv Chunlin , Xiao Fengping , Wei Yongge
Published: March 2011

The first mixed‐valent octamolybdate anion [MoV4MoVI4O24]4−, termed χ‐octamolybdate due to its shape, was obtained by partial reduction of α‐(Bu4N)4[Mo8O26] in dry acetonitrile. Single‐crystal X‐ray structure analysis revealed that the anion includes an unusual MoV4O8 cubane‐like cluster core, whose four side faces are capped by four MoO4 units to form a crosslike cluster. X‐ray photoelectron spectroscopy (XPS) and bond valence sum (BVS) calculations were carried out to validate the presence of mixed‐valent Mo centers.
Single‐Crystalline C60 Nanostructures by Sonophysical Preparation: Tuning Hollow Nanobowls as Catalyst Supports for Methanol Oxidation
Authors: Zhang Yang , Jiang Lang , Li Hui , Fan Louzhen , Hu Wenping , Wang Chunru , Li Yongfang , Yang Shihe
Published: March 2011

Large‐scale single‐crystalline hollow nanobowls of pure C60 were prepared by applying a sonophysical strategy in a binary organic solution. Through the simple adjustment of the concentration of the C60/m‐xylene solution and the volume ratio of m‐xylene to acetonitrile, C60 nanorings, nanoplates, nanorods, and nanowires were also selectively synthesized. The promise of the C60 hollow structures as Pt catalyst supports is heightened by the significantly enhanced catalytic activity toward methanol oxidation for a given amount of C60 used, which demonstrates their potential application in fuel cells.
ChemInform Abstract: Single‐Crystal Structure and Solide‐State NMR of Ga2‐xScxO3 (x = 0.83).
Authors: Ben Yahia Hamdi , van Wuellen Leo , Balamurugan Sarkarainadar , Rodewald Ute Ch. , Eckert Hellmut , Poettgen Rainer
Published: March 2011

Colorless needles of Ga1.17Sc0.83O3 are obtained from a K2WO4 flux during the preparation of La3Ga3Sc2O12 single crystals (Pt crucible, 1200 °C, 18 h).
ChemInform Abstract: Large Magnetic Entropy Change Near Room Temperature in La0.7(Ca0.27Ag0.03)MnO3 Perovskite.
Authors: Debnath J. C. , Zeng R. , Kim J. H. , Dou S. X.
Published: March 2011

La0.7 (Ca1‐xAgx)0.3MnO3 (x = 0, 0.1, 0.2, 0.7, 1) powders are prepared by solid state reaction of La2O3, CaCO3, Ag2CO3, and MnO2 (1350 °C, 24 h) and characterized by powder XRD and magnetization measurements.
ChemInform Abstract: Magnetic Structure of the YbMn2SbBi Compound.
Authors: Morozkin A. V. , Manfrinetti P.
Published: March 2011

The magnetic structure of the title compound is determined by neutron diffraction.
ChemInform Abstract: Thermodynamic Properties and Stability of In‐Doped SrCeO3 Proton‐Conducting Ceramics.
Authors: Matskevich Nata I. , Wolf Thomas , Chupakhina Tatiana I.
Published: March 2011

The standard enthalpy of formation of SrCe0.5In0.5O2.75 is determined by solution calorimetry.
ChemInform Abstract: The Al‐Rich Region of the Al—Mn—Ni Alloy System. Part 2. Phase Equilibria at 620—1000 °C.
Authors: Balanetskyy S. , Meisterernst G. , Grushko B. , Feuerbacher M.
Published: March 2011

Phase equilibria in the title system are investigated at 1000, 950, 850, 750, 700, 645, and 620 °C.
ChemInform Abstract: Porous Li4Ti5O12 Anode Material Synthesized by One‐Step Solid State Method for Electrochemical Properties Enhancement.
Authors: Lin Chi‐Yuan , Duh Jenq‐Gong
Published: March 2011

The title anode material is synthesized by solid state reaction of LiCl and TiCl4 in 70 wt.% oxalic acid (air, 800 °C, 10 h).
ChemInform Abstract: Oxidation of closo‐[B12Cl12]2‐ to the Radical Anion [B12Cl12]·‐ and to Neutral B12Cl12.
Authors: Boere Rene T. , Kacprzak Sylwia , Kessler Mathias , Knapp Carsten , Riebau Rainer , Riedel Sebastian , Roemmele Tracey L. , Ruehle Monika , Scherer Harald , Weber Stefan
Published: March 2011

M[B12Cl12] (M: Li, Na, K, Cs) containing the title radical anion is synthesized in essentially quantitative yield by reaction of M2[B12Cl12] in liquid SO2 with a large excess of the strong oxidizer AsF5.
ChemInform Abstract: Design Synthesis and Photocatalytic Activity of a Novel Lilac‐Like Silver‐Vanadate Hybrid Solid Based on Dicyclic Rings of [V4O12]4‐ with {Ag7}7+ Cluster.
Authors: Hu Yan , Luo Fang , Dong Fangfang
Published: March 2011

Compound (III) crystallizes in the triclinic space group P$\bar 1$ with Z = 1 (single crystal XRD).
ChemInform Abstract: Asymmetric Michael Addition Catalyzed by Sugar‐Based Prolinamides in Solvent‐Free Conditions.
Authors: Agarwal Jyoti , Peddinti Rama Krishna
Published: March 2011

Use of the novel chiral sugar‐based prolinamide catalyst furnishes Michael adducts of nitroolefins and cyclohexanones in excellent yields with high diastereoselectivity and moderate enantioselectivity.
ChemInform Abstract: Enzyme‐Catalyzed C—C Bond Formation Using 2‐Methyltetrahydrofuran (2‐MTHF) as (Co)solvent: Efficient and Bio‐Based Alternative to DMSO and MTBE.
Authors: Shanmuganathan Saravanakumar , Natalia Dessy , van der Wittenboer Anne , Kohlmann Christina , Greiner Lasse , Dominguez de Maria Pablo
Published: March 2011

The alternative solvent can be derived from bio‐based resources such as levulinic acid and it is abiotically degraded by air.
ChemInform Abstract: Dimethyl Sulfoxide/Potassium Hydroxide: A Superbase for the Transition Metal‐Free Preparation of Cross‐Coupling Products.
Authors: Yuan Yu , Thome Isabelle , Kim Seok Hwan , Chen Duanteng , Beyer Astrid , Bonnamour Julien , Zuidema Erik , Chang Sukbok , Bolm Carsten
Published: March 2011

Reaction of O‐, N‐ and S‐nucleophiles with various aryl halides proceeds smoothly in the superbasic system KOH—DMSO.
ChemInform Abstract: Synthesis of (E)‐1‐Benzyloxy‐3‐fluoro‐1,3‐butadiene (I): A Novel Fluorinated Diene for Diels—Alder Reactions.
Authors: Hayashi Tsuyoshi , Usuki Yoshinosuke , Wakamatsu Yosuke , Iio Hideo
Published: March 2011

The title diene (I), a fluorinated analogue of Kitahara—Danishefsky′s diene, smoothly reacts with various dienophiles to furnish useful 1‐fluorocyclohexene derivatives in good yields.
ChemInform Abstract: Gold(I)‐Catalyzed Intramolecular Tandem Addition/Friedel—Crafts Reactions Between Acyclic Enamides and 1‐Arylalkynes.
Authors: Kozak Jennifer A. , Patrick Brian O. , Dake Gregory R.
Published: March 2011

The reaction allows selective formation of 1‐amido‐substituted indene derivatives.
ChemInform Abstract: Synthesis, Characterization, Antiamoebic Activity and Cytotoxicity of Novel 2‐(Quinolin‐8‐yloxy) Acetohydrazones and Their Cyclized Products (1,2,3‐Thiadiazole and 1,2,3‐Selenadiazole Derivatives).
Authors: Hayat Faisal , Salahuddin Attar , Zargan Jamil , Azam Amir
Published: March 2011

All intermediates (III) and products (IV) and (V) are assayed for their antiamoebic activity using HM1:IMSS strain of E.
ChemInform Abstract: Synthesis of 1,2‐Disubstituted Benzimidazoles and 2‐Substituted Benzothiazoles Catalyzed by HCl‐Treated trans‐3,5‐Dihydroperoxy‐3,5‐dimethyl‐1,2‐dioxolane.
Authors: Azarifar Davood , Khosravi Kaveh , Najminejad Zohreh , Soleimani Khandijeh
Published: March 2011

The reaction is carried out under mild conditions in acetonitrile at room temperature in relatively short reaction times.
ChemInform Abstract: Fast Oxy‐Cope Rearrangements of Bis‐alkynes: Competition with Central C—C Bond Fragmentation and Incorporation in Tunable Cascades Diverging from a Common Bis‐allenic Intermediate.
Authors: Pal Runa , Clark Ronald J. , Manoharan Mariappan , Alabugin Igor V.
Published: March 2011

Treatment of benzil with terminal alkynes leads to 1,5‐hexadiyn‐3,4‐diolates which smoothly undergo oxy‐Cope rearrangement and subsequent cyclization to give cyclobutenes or cyclopentenones depending on the nature of substituents.
ChemInform Abstract: Highly Efficient Oxidative Bromination of Alkanes with the HBr‐H2O2 System in the Presence of Catalyst.
Authors: Li Yujin , Ju Jie , Jia Jianhong , Sheng Weijian , Han Liang , Gao Jianrong
Published: March 2011

The economical, environmentally friendly title system represents a green method for the C‐H bond activation of alkanes.
ChemInform Abstract: Unprecedented Elimination of Conjugated Phenylthioether Groups by Low‐Valent Titanocene.
Authors: Ribeiro Nigel , Fetzer Ludivine , Streiff Stephane , Desaubry Laurent
Published: March 2011

Precise control of the temperature is important for the formation of the active titanocene complex which promotes the title elimination reaction.
ChemInform Abstract: Direct Leuckart‐Type Reductive Amination of Aldehydes and Ketones: A Facile One‐Pot Protocol for the Preparation of Secondary and Tertiary Amines.
Authors: O'Connor Danielle , Lauria Ashley , Bondi Steven P. , Saba Shahrokh
Published: March 2011

The novel variant of the Leuckart reaction avoids the use of acids for the hydrolysis of possible N‐formyl derivatives of the amine products.
ChemInform Abstract: Organic Reactions in Water: A Practical and Convenient Method for the N‐Formylation of Amines in Water
Authors: Kaboudin Babak , Khodamorady Minoo
Published: March 2011

using triethyl orthoformate under classical thermal of microwave irradiation conditions
ChemInform Abstract: Effects of a Flexible Alkyl Chain on an Imidazole Ligand for Copper‐Catalyzed Mannich Reactions of Terminal Alkynes.
Authors: Okamura Takaaki , Asano Keisuke , Matsubara Seijiro
Published: March 2011

It is demonstrated that an imidazole ligand bearing a long alkyl side chain enhances the reaction of terminal alkynes, secondary amines, and aqueous formaldehyde.
ChemInform Abstract: Cross‐Coupling Reactions Between C(sp2)—H and C(sp3)—H Bonds via Sequential Dehydrogenation and C—H Insertion.
Authors: Kuninobu Yoichiro , Asanoma Daisuke , Takai Kazuhiko
Published: March 2011

The title formal cross‐coupling is achieved via an iridium‐catalyzed dehydrogenation of substituted primary alcohols, followed by a manganese‐ or rhenium‐catalyzed insertion of the formed aldehydes into an aromatic or olefinic C—H bond.
ChemInform Abstract: Hydrophobic Effect and Substrate Specificity in Reaction of Thioester and Amine in Water.
Authors: Torihata Atsushi , Kuroda Chiaki
Published: March 2011

The product yields in the amidation reaction of thioesters (I) are found to be highly dependent on the alkyl group of reacting amine.
ChemInform Abstract: Integrated Palladium‐Catalyzed Arylation of Heavier Group 14 Hydrides.
Authors: Lesbani Aldes , Kondo Hitoshi , Yabusaki Yusuke , Nakai Misaki , Yamanoi Yoshinori , Nishihara Hiroshi
Published: March 2011

The integrated palladium‐catalyzed cross‐coupling reaction of aromatic iodides with primary, secondary, or tertiary group 14 hydrides can be applied to the synthesis of a variety of arylated germanes and silanes.
ChemInform Abstract: Solvent‐Free Stereoselective Synthesis of (E)‐Trifluoromethyl Imines and Hydrazones.
Authors: Carroccia Laura , Fioravanti Stefania , Pellacani Lucio , Tardella Paolo A.
Published: March 2011

A simple synthesis of the title compounds is achieved through uncatalyzed condensation of trifluoromethyl carbonyl compounds or their hemiacetals with primary amines.
ChemInform Abstract: Reaction of Methyl Diazoacetate with Amines Catalyzed by Ru2(OAc)4Cl.
Authors: Maidanova A. V. , Bakeeva A. D. , Sultanova R. M. , Biglova R. Z. , Dokichev V. A.
Published: March 2011

Ru2(OAc)4Cl is an efficient catalyst for the reaction of primary and secondary amines with methyl diazoacetate leading regioselectively to N‐substituted glycine methyl esters.
ChemInform Abstract: Synthesis of Enamides via CuI‐Catalyzed Reductive Acylation of Ketoximes with NaHSO3.
Authors: Guan Zheng‐Hui , Zhang Zhi‐Yuan , Ren Zhi‐Hui , Wang Yao‐Yu , Zhang Xumu
Published: March 2011

A wide range of enamides can be prepared in good to high yields.
ChemInform Abstract: Oxidation of α‐Oxo‐Oximes to Nitrile Oxides with Hypervalent Iodine Reagents.
Authors: Jen Tim , Mendelsohn Brian A. , Ciufolini Marco A.
Published: March 2011

Treatment of α‐oxo‐oximes with Ph‐I(O‐Ac)2 allows formation of the title intermediates.
ChemInform Abstract: Novel and Efficient Synthesis of Unsymmetrical Trisulfides.
Authors: Lach Slawomir , Sliwka‐Kaszynska Magdalena , Witt Dariusz
Published: March 2011

Reaction of readily available trisulfide reagent (III) with aliphatic and aromatic thiols bearing various functional groups furnishes the title trisulfides in excellent yields and short reaction time.
ChemInform Abstract: Reactive Iron Carbonyl Reagents via Reaction of Metal Alkoxides with Fe(CO)5 or Fe2(CO)9: Synthesis of Cyclobutenediones via Double Carbonylation of Alkynes.
Authors: Beesu Mallesh , Periasamy Mariappan
Published: March 2011

A simple and convenient method to prepare cyclobutenediones is reported.
ChemInform Abstract: Efficient Preparation of the Key Intermediate in Corey′s Tamiflu Synthesis.
Authors: Hong Zhangyong , Cui Qi , Peng Jiannan , Hu Huan , Chen Zeming
Published: March 2011

The simple two‐step synthesis of the compounds (VI) which starts from easily available material and may be practical for large‐scale preparations affords the title intermediate (VIc).
ChemInform Abstract: Unexpected Prins Cyclization: Iron‐Promoted Cyclization/Hydration of Alkynyl‐Dimethyl Acetals.
Authors: Zheng Deping , Gong Wanchun , Ma Zuodong , Ma Bingzhen , Zhao Xiaolong , Xie Zhixiang , Li Ying
Published: March 2011

A novel strategy for the preparation of acyl substituted cycloheptenes is developed using an intramolecular Prins cyclization in the presence of FeCl3 as reagent.
ChemInform Abstract: Facile Chlorination of Benzyl Alcohols Using 1,8‐Diazabicyclo[5.4.0]undec‐7‐ene (DBU) and Sulfonyl Chlorides.
Authors: Kim Hyung Woo , Lee Yun‐Sang , Shetty Dinesh , Lee Hak Jeong , Lee Dong‐Soo , Chung June‐Key , Lee Myung Chul , Chung Kyoo‐Hyun , Jeong Jae Min
Published: March 2011

The optimized process affords the desired products, which are of interest as important intermediates in natural product synthesis, within a very short time.
ChemInform Abstract: Synthesis of Benzyl Bromides with Hexabromoacetone: An Alternative Path to Drug Intermediates.
Authors: Joseph Kara M. , Larraza‐Sanchez Isabel
Published: March 2011

A highly reproducible protocol for the conversion of benzyl alcohols to corresponding benzyl bromides (21 examples) is developed and applied to the synthesis of omeprazole precursor (IV).
ChemInform Abstract: CeCl3‐Catalyzed Reduction of Methyl Esters of Carboxylic Acids to Corresponding Alcohols with Sodium Borohydride.
Authors: Xu Yinan , Wei Yunyang
Published: March 2011

An efficient, chemoselective, and general protocol for the reduction of various methyl esters to the corresponding alcohols is described.
ChemInform Abstract: Palladium‐Catalyzed Reactions of 3‐Substituted Methylenecyclopropanes.
Authors: Shao Li‐Xiong , Li Jia , Wang Bao‐Yu , Shi Min
Published: March 2011

A plausible mechanism for these transformations is discussed.
ChemInform Abstract: Iron‐Catalyzed Synthesis of Glycine Derivatives via Carbon—Nitrogen Bond Cleavage Using Diazoacetate.
Authors: Kuninobu Yoichiro , Nishi Mitsumi , Takai Kazuhiko
Published: March 2011

The reaction of tertiary amines (I) with ethyl diazoacetate in the presence of iron or manganese salts leads to N‐disubstituted glycine derivatives (III).
ChemInform Abstract: The Heck—Matsuda Arylation of 2‐Hetero‐Substituted Acrylates.
Authors: De Azambuja Francisco , Correia Carlos Roque Duarte
Published: March 2011

Depending on the solvent used, the starting acrylates are converted into the arylated products (III) or adducts (VII), which are additionally methoxylated.
ChemInform Abstract: Improved Synthesis of 3‐Nitrosalicylic Acid.
Authors: Hummel Michael , Laus Gerhard , Nerdinger Sven , Schottenberger Herwig
Published: March 2011

Nitration of salicylic acid yields a 56:44 mixture of 3‐nitro and 5‐nitrosalicylic acid which is separated by crystallization of the monopotassium salt (II).
ChemInform Abstract: A Traceless, One‐Pot Preparation of Unsymmetric Disulfides from Symmetric Disulfides Through a Repeated Process Involving Sulfenic Acid and Thiosulfinate Intermediates.
Authors: Han Minsoo , Lee Jong Tak , Hahn Hoh‐Gyu
Published: March 2011

The reaction of symmetric disulfides (I) with sulfuryl chloride gives sulfenyl chlorides, which are directly coupled with thiols (II) in the presence of water to yield unsymmetrical disulfides (III).
ChemInform Abstract: Synthesis of (Z)‐Organylthioenynes Using KF/Al2O3/Solvent as Recyclable System.
Authors: Alves Diego , Sachini Maraisa , Jacob Raquel G. , Lenardao Eder J. , Contreira Maria E. , Savegnago Lucielli , Perin Gelson
Published: March 2011

Alumina‐supported KF‐promoted hydrothiolation of 1,3‐butadiynes in PEG‐400 or glycerol efficiently affords thiobutenynes with clear to complete (Z)‐selectivity.
ChemInform Abstract: Facile Preparation of Aryl Sulfides Using Palladium Catalysis under Mild Conditions.
Authors: Okauchi Tatsuo , Kuramoto Kouji , Kitamura Mitsuru
Published: March 2011

A facile method for the synthesis of aryl sulfides (29 examples) via a convenient C—S cross‐coupling of aryl bromides and thiols is developed.
ChemInform Abstract: An Efficient Fluorination of β‐Ketosulfones Promoted by a Room‐Temperature Ionic Liquid at Ambient Conditions under Ultrasound Irradiation Using SelectfluorTM F‐TEDA‐BF4.
Authors: Heravi Mohammad Reza Poor
Published: March 2011

The recyclable and non‐volatile ionic liquid is used as reaction media as well as promoter in the absence of any catalyst.
ChemInform Abstract: Convenient Route to Thiocarbonates from Alcohols, Thiols, and Triphosgene.
Authors: Movassagh Barahman , Soleiman‐Beigi Mohammad
Published: March 2011

The presented efficient one‐pot, three‐component synthesis of the title compounds (IV) includes simple experimental and work‐up procedures.
ChemInform Abstract: tert‐Butoxide‐Mediated Arylation of Benzene with Aryl Halides in the Presence of a Catalytic 1,10‐Phenanthroline Derivative.
Authors: Shirakawa Eiji , Itoh Ken‐ichi , Higashino Tomohiro , Hayashi Tamio
Published: March 2011

Cross coupling of aryl halides (II), (V), (IX) with unactivated arenes (I) and (IV) proceeds smoothly in the system NaOtBu—diphenylphenanthroline without the use of transition metal catalysts.
ChemInform Abstract: Nucleophilic Acylation of α‐Haloketones with Aldehydes: An Umpolung Strategy for the Synthesis of 1,3‐Diketones.
Authors: Singh Santosh , Singh Pankaj , Rai Vijai K. , Kapoor Ritu , Yadav Lal Dhar S.
Published: March 2011

The first examples of an NHC‐promoted intermolecular acylation of α‐haloketones with aldehydes and enals are reported.
ChemInform Abstract: Synthesis and Biological Evaluation of Aminoketones.
Authors: Rai U. Sankappa , Isloor Arun M. , Shetty Prakash , Isloor Nishitha , Malladi Shridhar , Fun Hoong‐Kun
Published: March 2011

In general the microwave‐assisted Mannich reaction proceeds diastereoselectively.
ChemInform Abstract: Solvent‐Free, Cross‐Aldol Condensation Reaction Using Silica‐Supported, Phosphorus‐Containing Reagents Leading to α,α′‐Bis(arylidene)cycloalkanones.
Authors: Hasaninejad Alireza , Zare Abdolkarim , Balooty Laleh , Mehregan Hadis , Shekouhy Mohsen
Published: March 2011

An efficient, selective, inexpensive, simple, and clean method for the synthesis of the title compounds (III) is developed.
ChemInform Abstract: Site‐Selective Suzuki—Miyaura Reactions of 2,3‐Dibromo‐1H‐inden‐1‐one.
Authors: Hussain Munawar , Nguyen Thai Hung , Khera Rasheed Ahmed , Villinger Alexander , Langer Peter
Published: March 2011

The Pd‐catalyzed coupling of the title compound (I) with arylboronic acids proceeds with high site‐selectivity to allow convenient access to 2,3‐diaryl‐ and 3‐aryl‐inden‐1‐one derivatives.
ChemInform Abstract: Regioselective Suzuki—Miyaura Reactions of the Bis(triflate) of 1,2,3,4‐Tetrahydro‐9,10‐dihydroxyanthracen‐1‐one.
Authors: Salman Ghazwan A. , Mahal Ahmed , Shkoor Mohanad , Hussain Munawar , Villinger Alexander , Langer Peter
Published: March 2011

Site‐selective Suzuki—Miyaura coupling of bis(triflate) (I) allows the synthesis of 9,10‐diaryl and 10‐arylanthracenone derivatives.
ChemInform Abstract: Site‐Selective Suzuki—Miyaura Reactions of the Bis(triflate) of 5,10‐Dihydroxy‐11H‐benzo[b]fluoren‐11‐one.
Authors: Salman Ghazwan Ali , Hussain Munawar , Villinger Alexander , Langer Peter
Published: March 2011

Bis(triflates) (I) undergoes site‐selective coupling with arylboronic acids to yield 5,10‐diaryl and 10‐monoaryl‐substituted target compounds.
ChemInform Abstract: An Efficient Synthesis and Biological Testing of Novel 3‐Chloro‐4‐aryl‐1‐(4‐(phenyldiazenyl)phenyl)azetidin‐2‐ones.
Authors: Chopde Himani N. , Pagadala Ramakanth , Meshram Jyotsna S. , Jetti Venkateshwarlu
Published: March 2011

Title compounds (V) are synthesized starting by cycloaddition of Schiff bases (III) with in situ generated ketene.
ChemInform Abstract: Diastereoselective Synthesis of trans‐2,3,6,7‐Tetrahydro‐4(5H)‐benzofuranones and trans‐2,3‐Dihydrofurocoumarins via Pyridinium Ylide Assisted Tandem Reactions.
Authors: Han Ying , Hou Hong , Yao Rong , Fu Qin , Yan Chao‐Guo
Published: March 2011

A convenient two‐step one‐pot reaction of aromatic aldehydes, α‐halo acetic esters and cyclic diones is investigated results in the trans‐diastereoselective formation of title compounds (IV) and (VII) in good yields.
ChemInform Abstract: An Efficient Synthesis of Benzofuran Derivatives under Conventional/Non‐conventional Method.
Authors: Sapkal Suryakant B. , Shelke Kiran F. , Shingate Bapurao B. , Shingare Murlidhar S.
Published: March 2011

Cyclocondensation of different salicylaldehydes with chloromethylcarbonyl compounds (II) in the presence of basic alumina and ionic liquid affords the title compounds (III) (12 examples) in excellent yields under both conventional thermal and microwave irradiation conditions.
ChemInform Abstract: Convenient Synthesis of Some 3‐Phenyl‐1‐benzofuran‐2‐carboxylic Acid Derivatives as New Potential Inhibitors of CLC‐Kb Channels.
Authors: Piemontese Luca , Carbonara Giuseppe , Fracchiolla Giuseppe , Laghezza Antonio , Tortorella Paolo , Loiodice Fulvio
Published: March 2011

The reaction gives poor results, when acetophenone or benzaldehyde derivatives are used as starting material, cf.
ChemInform Abstract: Diastereoselective Synthesis of trans‐2,3‐Dihydrothiophenes via Multicomponent Reactions of Pivaloylacetonitrile, Aldehyde, Amine, and Thiazolidinedione.
Authors: Sun Jing , Wu Qun , Xiao Er‐Yan , Yan Chao‐Guo
Published: March 2011

A four‐component reaction of thiazoline‐2,4‐dione, aromatic aldehydes, cyclic secondary amines, and pivaloylacetonitrile yields the target compounds with excellent diastereoselectivity.
ChemInform Abstract: Substituted Spiro [2.3′] Oxindolespiro [3.2“]‐5,6‐Dimethoxy‐indane‐1′′‐one‐pyrrolidine Analogues as Inhibitors of Acetylcholinesterase.
Authors: Ali Mohamed Ashraf , Ismail Rusli , Choon Tan Soo , Yoon Yeong Keng , Wei Ang Chee , Pandian Suresh , Kumar Raju Suresh , Osman Hasnah , Manogaran Elumalai
Published: March 2011

1,3‐Dipolar cycloaddition of azomethine ylides, generated in situ via decarboxylative condensation of amino acids (III) or (V) and Isatin, to arylmethyleneindenone (I) provides the novel title spiro‐heterocycles (IV) and (VI), respectively.
ChemInform Abstract: Synthesis of Nonsymmetrical 5‐Aryl‐2‐indolopyrrole Derivatives via Controlled Mono Suzuki—Miyaura Cross‐Coupling on N‐Boc‐2,5‐dibromopyrrole.
Authors: Beaumard Floriane , Dauban Philippe , Dodd Robert H.
Published: March 2011

In connection with a project in medicinal chemistry, the preparation of rigid analogues of calindol (VIII) is necessary.
ChemInform Abstract: Synthesis of 3‐Heteroaryloxindoles Through t‐BuOCl‐Mediated Oxidation of 3‐Heteroarylindoles.
Authors: Baroni Marco , Lesma Giordano , Puleio Letizia , Sacchetti Alessandro , Silvani Alessandra , Zanchet Marco
Published: March 2011

Depending on the amount of oxidation reagent used, the synthesis of 3‐hetaryloxindoles or related 2‐chloroindoles can be achieved.
ChemInform Abstract: Design, Synthesis and Structure—Activity Relationship Study of Novel Pyrazole‐Based Heterocycles as Potential Antitumor Agents.
Authors: Farag Ahmad M. , Ali Korany A. K. , El‐Debss Taha M. A. , Mayhoub Abdelrahman S. , Amr Abdel‐Galil E. , Abdel‐Hafez Naglaa A. , Abdulla Mohamed M.
Published: March 2011

The hitherto unreported pyrazole compound (III) and its derivative (V) undergo regioselective 1,3‐dipolar cycloaddition with in situ prepared nitrilimines to afford the pyrazole structures (VII) and (X).
ChemInform Abstract: A Palladium‐Catalyzed Multicomponent Synthesis of Imidazolinium Salts and Imidazolines from Imines, Acid Chlorides, and Carbon Monoxide.
Authors: Worrall Kraig , Xu Boran , Bontemps Sebastien , Arndtsen Bruce A.
Published: March 2011

It provides a straightforward approach to a number of imidazolinium salts and imidazolines.
ChemInform Abstract: Regio‐ and Stereoselective 1,3‐Dipolar Cycloaddition of C‐Aryl‐N‐phenylnitrones over (E)‐Arylidene‐(2H)‐indan‐1‐ones: Synthesis of Highly Substituted Novel Spiroisoxazolidines.
Authors: Rammah Mohamed El Baker , et al. et al.
Published: March 2011

The regiochemistry of the reaction seems to be independent of the electronic nature of substituents in both dipolarophile and dipole and the diastereoselectivity is rationalized as combination of electronic and steric interactions.
ChemInform Abstract: Synthesis, Characterization, and Antimicrobial Activity of 3′‐(4‐(2‐Substituted thiazol‐4‐yl)phenyl)spiro[indoline‐3,2′‐thiazolidine]‐2,4′‐diones.
Authors: Mhaske Pravin C. , Shelke Shivaji H. , Jadhav Rahul P. , Raundal Hemant N. , Patil Sachin V. , Patil Amar A. , Bobade Vivek D.
Published: March 2011

A variety of the title compounds (IV) (20 examples) are synthesized and evaluated for their antimicrobial activities.
ChemInform Abstract: Synthesis and Biological Evaluation of Some Thiazolylpyrazole Derivatives as Dual Antiinflammatory Antimicrobial Agents.
Authors: Bekhit Adnan A. , Fahmy Hesham T. Y. , Rostom Sherif A. F. , Bekhit Alaa El Din A.
Published: March 2011

Synthesis and biological evaluation (antiinflammatory activity, COX‐1 and ‐2 inhibitory activity, ulcerogenic effect, acute toxicity, antimicrobial activity) are described.
ChemInform Abstract: A Rapid and High‐Yielding Synthesis of Thiazoles and Aminothiazoles Using Tetrabutylammonium Salts.
Authors: Kocabas Erdal , Sariguney Ahmet Burak , Coskun Ahmet
Published: March 2011

Alternative tetrabutylammonium salts are investigated as phase‐transfer catalysts as well, giving similar results.