bluuebunny/crossref_metadata_2025 huggingface dataset:
Performance of geotextile silt fences in large flume tests
Authors: Farias R. J. C. , Palmeira E. M. , Carvalho J. C.
Published: August 2006

This paper presents the results of large-scale flume tests to assess the performance of different types of nonwoven geotextile in silt fences. Four types of geotextile and three types of soil were used in the tests, under varying values of runoff discharges. The flow rate passing through the geotextile and the upstream slurry level rising with time were measured, as well as the slurry concentration, the sizes of the soil particles that piped through the geotextile, and the permittivity of the geotextiles after the tests. The results showed the great effects of the geotextile on sediment retention and slurry concentration reduction. A greater than expected geotextile retention capacity was observed. The results also suggest that a lighter and cheaper nonwoven geotextile may be used in a silt fence if the other requirements for relevant material properties for this type of application are satisfied.
Prediction of settlement of shallow foundations on reinforced soils using neural networks
Authors: Soleimanbeigi A. , Hataf N.
Published: August 2006

The use of reinforcement to increase the bearing capacity and reduce the settlement of shallow foundations is a common construction technique. Although foundation settlement is a major problem for design, few practical methods have been developed to compute the settlement of shallow foundations on reinforced cohesionless soils. In this study, a feedforward backpropagation neural network (BPNN), which is one type of artificial neural network (ANN), is used to predict the settlement of reinforced foundations. The model performance showed very good agreement with the measured settlements. The results indicate that the developed BPNN model may be a powerful tool to accurately predict settlement of shallow foundations on reinforced cohesionless soils.
RESISTANCE TO EXTINCTION FOLLOWING VARIABLE‐INTERVAL REINFORCEMENT: REINFORCER RATE AND AMOUNT
Authors: Shull Richard L. , Grimes Julie A.
Published: August 2006

Rats obtained food‐pellet reinforcers by nose poking a lighted key. Experiment 1 examined resistance to extinction following single‐schedule training with different variable‐interval schedules, ranging from a mean interval of 16 min to 0.25 min. That is, for each schedule, the rats received 20 consecutive daily baseline sessions and then a session of extinction (i.e., no reinforcers). Resistance to extinction (decline in response rate relative to baseline) was negatively related to the rate of reinforcers obtained during baseline, a relation analogous to the partial‐reinforcement‐extinction effect. A positive relation between these variables emerged, however, when the unit of extinction was taken as the mean interreinforcer interval that had been in effect during training (i.e., as an omitted reinforcer during extinction). In a second experiment, rats received blocks of training sessions, all with the same variable‐interval schedule but with a reinforcer of four pellets for some blocks and one pellet for others. Resistance to extinction was greater following training with the larger (four pellets) than with the smaller (one pellet) reinforcer. Taken together, these results support the principle that greater reinforcement during training (e.g., higher rate or larger amount) engenders greater resistance to extinction even when the different conditions of reinforcement are varied between blocks of sessions.
FEEDBACK FUNCTIONS, OPTIMIZATION, AND THE RELATION OF RESPONSE RATE TO REINFORCER RATE
Authors: Soto Paul L. , McDowell Jack J. , Dallery Jesse
Published: August 2006

The present experiment arranged a series of inverted U‐shaped feedback functions relating reinforcer rate to response rate to test whether responding was consistent with an optimization account or with a one‐to‐one relation of response rate to reinforcer rate such as linear system theory's rate equation or Herrnstein's hyperbola. Reinforcer rate was arranged according to a quadratic equation with a maximum at a unique response rate. The experiment consisted of two phases, during which 6 Long Evans rats lever pressed for food. In the first phase of the experiment, the rats responded on six fixed‐interval‐plus‐quadratic‐feedback schedules, and in the second phase the rats responded on three variable‐interval‐plus‐quadratic‐feedback schedules. Responding in both phases was inconsistent with a one‐to‐one relation of response rate to reinforcer rate. Instead, different response rates were obtained at equivalent reinforcer rates. Responding did vary directly with the vertex of the feedback function in both phases, a finding consistent with optimization of reinforcer rate. The present results suggest that the feedback function relating reinforcer rate to response rate imposed by a reinforcement schedule can be an important determinant of behavior. Furthermore, the present experiment illustrates the benefit of arranging feedback functions to investigate assumptions about the variables that control schedule performance.
THE INFLUENCE OF PRIOR CHOICES ON CURRENT CHOICE
Authors: Piedad Xochitl de la , Field Douglas , Rachlin Howard
Published: August 2006

Three pigeons chose between random‐interval (RI) and tandem, continuous‐reinforcement, fixed‐interval (crf‐FI) reinforcement schedules by pecking either of two keys. As long as a pigeon pecked on the RI key, both keys remained available. If a pigeon pecked on the crf‐FI key, then the RI key became unavailable and the crf‐FI timer began to time out. With this procedure, once the RI key was initially pecked, the prospective value of both alternatives remained constant regardless of time spent pecking on the RI key without reinforcement (RI waiting time). Despite this constancy, the rate at which pigeons switched from the RI to the crf‐FI decreased sharply as RI waiting time increased. That is, prior choices influenced current choice—an exercise effect. It is argued that such influence (independent of reinforcement contingencies) may serve as a sunk‐cost commitment device in self‐control situations. In a second experiment, extinction was programmed if RI waiting time exceeded a certain value. Rate of switching to the crf‐FI first decreased and then increased as the extinction point approached, showing sensitivity to both prior choices and reinforcement contingencies. In a third experiment, crf‐FI availability was limited to a brief window during the RI waiting time. When constrained in this way, switching occurred at a high rate regardless of when, during the RI waiting time, the crf‐FI became available.
EXPERIMENTAL CONTROL OF NODALITY VIA EQUAL PRESENTATIONS OF CONDITIONAL DISCRIMINATIONS IN DIFFERENT EQUIVALENCE PROTOCOLS UNDER SPEED AND NO‐SPEED CONDITIONS
Authors: Imam Abdulrazaq A.
Published: August 2006

A within‐participant comparison of simple‐to‐complex, complex‐to‐simple, and simultaneous protocols was conducted establishing different sets of three 7‐member equivalence classes for 4 undergraduate students. The protocols were implemented under either accuracy‐only or accuracy‐plus‐speed conditions while keeping number of presentations of training and testing trials equal. The results partially support previous reports of differential effects on acquisition, with participants completing more blocks in training under the simultaneous than the complex‐to‐simple and the simple‐to‐complex protocols. Across the protocols, however, the number of trials completed to criterion did not vary systematically. More important, response speed and accuracy did not decrease as a function of nodal number, with or without the speed contingency, or under any protocol. The latter results challenge the generality of previous reports of the nodality effect and the notion of “relatedness” of equivalence‐class members, and support a reinforcement‐contingency, instead of a structural, perspective on equivalence‐class formation.
ABOUT SKINNER AND TIME: BEHAVIOR‐ANALYTIC CONTRIBUTIONS TO RESEARCH ON ANIMAL TIMING
Authors: Lejeune Helga , Richelle Marc , Wearden J. H.
Published: August 2006

The article discusses two important influences of B. F. Skinner, and later workers in the behavior‐analytic tradition, on the study of animal timing. The first influence is methodological, and is traced from the invention of schedules imposing temporal constraints or periodicities on animals inThe Behavior of Organisms, through the rate differentiation procedures ofSchedules of Reinforcement, to modern temporal psychophysics in animals. The second influence has been the development of accounts of animal timing that have tried to avoid reference to internal processes of a cognitive sort, in particular internal clock mechanisms. Skinner's early discussion of temporal control is first reviewed, and then three recent theories—Killeen & Fetterman's (1988) Behavioral Theory of Timing; Machado's (1997) Learning to Time; and Dragoi, Staddon, Palmer, & Buhusi's (2003) Adaptive Timer Model—are discussed and evaluated.
DISCRIMINABILITY AND SENSITIVITY TO REINFORCER MAGNITUDE IN A DETECTION TASK
Authors: Alsop Brent , Porritt Melissa
Published: August 2006

Three pigeons discriminated between two sample stimuli (intensities of red light). The difficulty of the discrimination was varied over four levels. At each level, the relative reinforcer magnitude for the two correct responses was varied across conditions, and the reinforcer rates were equal. Within levels, discriminability between the sample stimuli did not change systematically as reinforcer magnitude varied. Across levels, the sensitivity of behavior to changes in the reinforcer‐magnitude ratio decreased as the discriminability between the sample stimuli increased. Subsequent analysis showed that this relation was limited to performance following only one of the sample stimuli, the dim red light that remained constant across all conditions. Extant behavioral models of signal detection cannot easily accommodate these results.
Antibakterielle Naturstoffe in der medizinischen Chemie – Exodus oder Renaissance?
Authors: von Nussbaum Franz , Brands Michael , Hinzen Berthold , Weigand Stefan , Häbich Dieter
Published: August 2006

Zur Entwicklung von Medikamenten müssen die Strukturvorlagen aus der Natur oft durch Semisynthese oder Totalsynthese verbessert werden (chemische Post‐Evolution). Der Weg vom Naturstoff zum Arzneimittel ist mühsam aber lohnenswert. Die grundlegenden Typen der chemischen Naturstoffmodifikation – Dekoration, Substitution und Abbau – werden hier besprochen, und das biologische, chemische und sozioökonomische Umfeld antibakterieller Forschung wird betrachtet. Naturstoffe waren und bleiben die ergiebigste Leitstrukturquelle für vermarktete Antiinfektiva, und obwohl viele lange bekannte Klassen nie grundlegend erforscht worden sind, erlahmen die industrielle wie die akademische Forschung auf diesem Gebiet – die “altmodischen” Naturstoffe scheinen nicht mehr ins Bild der modernen Wirkstoff‐Forschung zu passen, ihre Handhabung ist aufwändig und erfordert oft nichtstandardisierte Prozesse und längere Bearbeitungszeiten. Eine Neubetrachtung von Naturstoffen mit Methoden der modernen Chemie und Biologie (Reversed Genomics) könnte ihre Renaissance in der Arzneimittelforschung einleiten.
Cover Picture: Antibacterial Natural Products in Medicinal Chemistry—Exodus or Revival? (Angew. Chem. Int. Ed. 31/2006)
Authors: von Nussbaum Franz , Brands Michael , Hinzen Berthold , Weigand Stefan , Häbich Dieter
Published: August 2006

The exceptional often hides within the ordinary. In 1503, Albrecht Dürer saw a complex microcosm concealed in an apparently unimportant piece of turf (“Great Piece of Turf” with courtesy of http://reisserbilder.at). In a similar fashion, chemical postevolution can elicit exceptional properties from known natural products. In their Review on page 5072 ff., Häbich and co‐workers analyze the application of this principle on antibiotics.
Synthesis and in vitro‐Anticancer and Antimicrobial Evaluation of Some Novel Quinoxalines Derived from 3‐Phenylquinoxaline‐2(1H)‐thione
Authors: El‐Hawash Soad A. M. , Wahab Abeer E. Abdel
Published: August 2006

Two novel series derived from 3‐phenylquinoxaline‐2(1H)‐thione 2 and 2‐(hydrazinocarbonylmethylthio)‐3‐phenylquinoxaline 6 have been synthesized. Eight out of twenty six new compounds were selected at the National Cancer Institute for evaluation of their in vitro‐anticancer activity. Among them, compounds 3b, 3c, 4b, and 4c displayed moderate to strong growth inhibition activity against most of the tested sub‐panel tumor cell lines with GI50 10–5 to 10–6 molar concentrations. Compound 4b exhibited a significant value of percent tumor growth inhibition against breast cancer at concentration < 10–8 M. Compound 4c showed moderate selectivity towards leukemia cell lines with GI50 of 1.8 to 3.8 μM (selectivity ratio = 5.7). Preliminary antimicrobial testing revealed that compounds 7a, 7b, 8a, 11a, and 11b were as active as ampicillin against B. subtilis (MIC = 12.5 μg/mL). Compounds 7b and 8a were also nearly as active as ampicillin against E. coli (MIC = 12.5 μg/mL). In addition, compounds 4a, 7b, 10b, and 11a were as active as ampicillin against P. aerugenosa (MIC = 50 μg/mL). However, compounds 7b, 8a, and 10b showed mild activity against C. albicans (MIC = 50 μg/mL). The values of minimum bactericidal concentrations indicated that compounds 4a and 7b were bactericidal against B. subtilis and P. aerugenosa, respectively, while compound 10b was bactericidal against both organisms. However, compound 11a was bactericidal against E. coli, P. aerugenosa, and S. aureus.
Gas‐Phase Enantioselectivity of Chiral Amido[4]resorcinarene Receptors
Authors: Botta Bruno , Caporuscio Fabiana , D'Acquarica Ilaria , Delle Monache Giuliano , Subissati Deborah , Tafi Andrea , Botta Maurizio , Filippi Antonello , Speranza Maurizio
Published: August 2006

Diastereomeric proton‐bound [1LHA]+ complexes between selected amino acids (A=phenylglycine (Phg), tryptophan (Trp), tyrosine methyl ester (TyrOMe), threonine (Thr), and allothreonine (AThr)) and a chiral amido[4]resorcinarene receptor (1L) display a significant enantioselectivity when undergoing loss of the amino acid guest A by way of the enantiomers of 2‐aminobutanes (B) in the gas phase. The enantioselectivity of the B‐to‐A displacement is ascribed to a combination of thermodynamic and kinetic factors related to the structure and the stability of the diastereomeric [1LHA]+ complexes and of the reaction transition states. The results of the present and previous studies allow classification of the [1LHA]+ complexes in three main categories wherein: i) guest A does not present any additional functionalities besides the amino acid one (alanine (Ala), Phg, and phenylalanine (Phe)); ii) guest A presents an additional alcohol function (serine (Ser), Thr, and AThr); and iii) guest A contains several additional functionalities on its aromatic ring (tyrosine (Tyr), TyrOMe, Trp, and 3,4‐dihydroxyphenylalanine (DOPA)). Each category exhibits a specific enantioselectivity depending upon the predominant [1LHA]+ structures and the orientation of the 2‐aminobutane reactant in the relevant adducts observed. The results may contribute to the understanding of the exceptional selectivity and catalytic properties of enzyme mimics towards unsolvated biomolecules.
Probing the Lewis Acidity and Catalytic Activity of the Metal–Organic Framework [Cu3(btc)2] (BTC=Benzene‐1,3,5‐tricarboxylate)
Authors: Alaerts Luc , Séguin Etienne , Poelman Hilde , Thibault‐Starzyk Frédéric , Jacobs Pierre A. , De Vos Dirk E.
Published: August 2006

An optimized procedure was designed for the preparation of the microporous metal–organic framework (MOF) [Cu3(btc)2] (BTC=benzene‐1,3,5‐tricarboxylate). The crystalline material was characterized by X‐ray diffraction, optical microscopy, SEM, X‐ray photoelectron spectroscopy, N2 sorption, thermogravimetry, and IR spectroscopy of adsorbed CO. CO adsorbs on a small number of Cu2O impurities, and particularly on the free CuII coordination sites in the framework. [Cu3(btc)2] is a highly selective Lewis acid catalyst for the isomerization of terpene derivatives, such as the rearrangement of α‐pinene oxide to campholenic aldehyde and the cyclization of citronellal to isopulegol. By using the ethylene ketal of 2‐bromopropiophenone as a test substrate, it was demonstrated that the active sites in [Cu3(btc)2] are hard Lewis acids. Catalyst stability, re‐usability, and heterogeneity are critically assessed.
Comparative First‐Principles Study of Structural and Optical Properties of Alkali Metal Azides.
Authors: Zhu Weihua , Xiao Jijun , Xiao Heming
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Single‐Crystal Structure of the 2H‐Related Perovskites (A3‐xNax)NaBO6 (A: La, Pr, Nd; B: Rh, Pt).
Authors: Macquart Rene B. , Gemmill William R. , Davis Matthew J. , Smith Mark D. , zur Loye Hans‐Conrad
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
La4N2S3: A New Nitride Sulfide of Lanthanum with Unprecedented Crystal Structure.
Authors: Lissner Falk , Schleid Thomas
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Synthesis and Characterization of Na5[VO4][O] and Na4[VO4][OH].
Authors: Kerp Oliver , Moeller Angela
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Valence Behavior of Ytterbium in YbNiGa4.
Authors: Vasylechko L. , Schnelle W. , Schmidt M. , Burkhardt U. , Borrmann H. , Schwarz U. , Grin Yu.
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Synthesis and Characterization of Fe(IO3)3 Nanosized Powder.
Authors: Galez C. , Mugnier Y. , Bouillot J. , Lambert Y. , Le Dantec R.
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Synthesis of YAG:Ce Phosphor via Different Aluminum Sources and Precipitation Processes.
Authors: Chiang C. C. , Tsai M. S. , Hsiao C. S. , Hon M. H.
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Structural, Thermal and Dielectric Studies in Na2SeO4×Te (OH)6×H2O.
Authors: Dammak M. , Litaiem H. , Mhiri T.
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Importance of the O—M—O Bridges (M: V5+, Mo6+) for the Spin‐Exchange Interactions in the Magnetic Oxides of Cu2+ Ions Bridged by MO4 Tetrahedra: Spin‐Lattice Models of Rb2Cu2(MoO4)3, BaCu2V2O8, and KBa3Ca4Cu3V7O28.
Authors: Koo Hyun‐Joo , Whangbo Myung‐Hwan
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Electrical Resistivity and Specific Heat Studies of NpFe4Al8.
Authors: Goncalves A. P. , Almeida M. , Wastin F. , Colineau E. , Boulet P. , Javorsky P. , Rebizant J.
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Investigation of the Pr2Se3—Cu2Se—PbSe and Pr2Se3—Ag2Se—PbSe Systems.
Authors: Marchuk O. V. , Gulay L. D. , Shemet V. Ya. , Olekseyuk I. D.
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
The Interactions Between the Components in the Gd—Ag—Ga System.
Authors: Gumeniuk R. V. , Taras I. B. , Kuzma Yu. B.
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Investigation of the Ho2Se3—Cu2Se—PbSe and Er2Se3—Cu2Se—PbSe Systems at 870 K.
Authors: Gulay L. D. , Olekseyuk I. D. , Wolcyrz M. , Stepien‐Damm J. , Pietraszko A.
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Molecular Precursor Route to Bulk and Silica‐Supported Nb2Mo3O14 Using Water‐Soluble Oxo‐oxalato Complexes.
Authors: Bayot Daisy A. , Devillers Michel M.
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Syntheses of Phosphoryl Chloro‐ and Bromofluorides and Crystal Structures of POFCl2 and POF2Cl.
Authors: Rovnanik Pavel , Zak Zdirad , Cernik Milos
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
The Simultaneous Oxidation of Tellurium and Transition Metals by AsF5 — Syntheses and Crystal Structures of [M(SO2)6](Te6)[AsF6]6 (M: Ni, Zn) and [Cd(SO2)2][AsF6]2.
Authors: Beck Johannes , Steden Folker , Zink Marcus
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
The Aluminide Iodides La24Al12I21 and La10Al5I8: Compounds with Intermetallic La—Al Fractions and La—Al Clusters.
Authors: Mattausch Hansjuergen , Oeckler Oliver , Hoch Constantin , Simon Arndt
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
A New Europium(II) Oxide Iodide: Eu2OI2.
Authors: Hammerich Stefanie , Meyer Gerd
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Synthesis of Butane‐Like SiGe Hydrides: Enabling Precursors for CVD of Ge‐Rich Semiconductors.
Authors: Chizmeshya Andrew V. G. , Ritter Cole J. , Hu Changwu , Tice Jesse B. , Tolle John , Nieman Ronald A. , Tsong Ignatius S. T. , Kouvetakis John
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
In Search of Benzene‐Like Sn6‐6: Synthesis of Na4CaSn6 with Interconnected Cyclohexane‐Like Sn6‐6.
Authors: Todorov Iliya , Sevov Slavi C.
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Structurally Well‐Defined, Recoverable C3‐Symmetric Tris(β‐hydroxy phosphoramide)‐Catalyzed Enantioselective Borane Reduction of Ketones.
Authors: Du Da‐Ming , Fang Tao , Xu Jiaxi , Zhang Shi‐Wei
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Enantioselective Organocatalytic Michael Addition Reactions Between N‐Heterocycles and Nitroolefins.
Authors: Wang Jian , Li Hao , Zu Liansuo , Wang Wei
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Phosphoramidite Ligands in Iridium‐Catalyzed Allylic Substitution
Authors: Polet Damien , Alexakis Alexandre , Tissot‐Croset Karine , Corminboeuf Clemence , Ditrich Klaus
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Asymmetric Fluorination of β‐Keto Esters Catalyzed by Chiral Rare Earth Perfluorinated Organophosphates.
Authors: Suzuki Shoko , Furuno Hiroshi , Yokoyama Yasuo , Inanaga Junji
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Catalytic Enantioselective Oxidation of Sulfides and Disulfides by a Chiral Complex of Bis‐Hydroxamic Acid and Molybdenum.
Authors: Basak Arindrajit , Barlan Allan U. , Yamamoto Hisashi
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Asymmetric 1,4‐Addition of Aryltrialkoxysilanes to α,β‐Unsaturated Esters and Amides Catalyzed by a Chiral Rhodium Complex
Authors: Oi Shuichi , Taira Akio , Honma Yoshio , Sato Takashi , Inoue Yoshio
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Enantioselective Synthesis of Axially Chiral Anilides Through Rhodium‐Catalyzed [2 + 2 + 2] Cycloaddition of 1,6‐Diynes with Trimethylsilylynamides.
Authors: Tanaka Ken , Takeishi Kenzo , Noguchi Keiichi
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Broensted Acid Mediated Heterogeneous Addition Reaction of 1,3‐Dicarbonyl Compounds to Alkenes and Alcohols.
Authors: Motokura Ken , Fujita Noriaki , Mori Kohsuke , Mizugaki Tomoo , Ebitani Kohki , Kaneda Kiyotomi
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Indium Triflate Catalyzed Ene and Friedel—Crafts Additions to α‐Imino Esters: A One‐Pot Synthesis of α‐Amino Acid Derivatives.
Authors: Chauhan Kamlesh K. , Hartley Joseph P. , Krakowski Matthew , Frost Christopher G.
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
A Highly Practical Instant Catalyst for Cyclotrimerization of Alkynes to Substituted Benzenes.
Authors: Saino Naoko , Amemiya Fumihiro , Tanabe Emi , Kase Kouki , Okamoto Sentaro
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Yttrium(III)‐Catalyzed Intramolecular Alkyne Hydroaminations.
Authors: Kim Hyunseok , Livinghouse Tom , Shim Jun Hwan , Lee Seong Guk , Lee Phil Ho
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
The Green Catalytic Oxidation of Alcohols in Water by Using Highly Efficient Manganosilicate Molecular Sieves.
Authors: Manyar Haresh G. , Chaure Ganesh S. , Kumar Ashok
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Alternative, Easy and Efficient Preparation of Poly[4‐(diacetoxyiodo)styrene] from Poly(4‐iodostyrene) Using Sodium Perborate as the Oxidant.
Authors: Hossain Md. Delwar , Kitamura Tsugio
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Epoxidation and Oxidation Reactions Using Divinyl Benzene Crosslinked Polystyrene Supported t‐Butyl Hydroperoxide.
Authors: Sheela M. S. , Sreekumar K.
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Facile Deoxygenation of Amine‐N‐oxides with CoCl2×6H2O — Indium System.
Authors: Han Jung Hwa , Choi Kyung Il , Kim Joong Hyup , Yoon Cheol Min , Yoo Byung Woo
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Perchloric Acid Impregnated on Silica Gel (HClO4/SiO2): A Versatile Catalyst for Michael Addition of Thiols to the Electron‐Deficient Alkenes.
Authors: Khan Abu T. , Ghosh Subrata , Choudhury Lokman H.
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
New Systems for Classical Nitrosohalogenation of Alkenes. Part 2. Generation of Nitrosyl Chloride in AgNO2—SOCl2 and AgNO3—SOCl2 Systems.
Authors: Bondarenko O. B. , Gavrilova A. Yu. , Tikhanushkina V. N. , Zyk N. V.
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Cationic Copper(I) Complexes as Efficient Precatalysts for the Hydrosilylation of Carbonyl Compounds.
Authors: Diez‐Gonzalez Silvia , Scott Natalie M. , Nolan Steven P.
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
User‐Friendly Methylation of Aryl and Vinyl Halides and Pseudohalides with DABAL‐Me3.
Authors: Cooper Thea , Novak Andrew , Humphreys Luke D. , Walker Matthew D. , Woodward Simon
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Effective Acceleration of Atom Transfer Carbonylation of Alkyl Iodides by Metal Complexes. Application to the Synthesis of the Hinokinin Precursor and Dihydrocapsaicin.
Authors: Fukuyama Takahide , Nishitani Satoshi , Inouye Takaya , Morimoto Keisuke , Ryu Ilhyong
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
4,5,6,7‐Tetrachlorobenzo[d][1,3,2]dioxaborol‐2‐ol as an Effective Catalyst for the Amide Condensation of Sterically Demanding Carboxylic Acids.
Authors: Maki Toshikatsu , Ishihara Kazuaki , Yamamoto Hisashi
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Sequential Pd‐ and Rh‐Catalyzed Three‐Component Cyclization with Allenylboronate Platform.
Authors: Tonogaki Keisuke , Itami Kenichiro , Yoshida Jun‐ichi
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Synthesis of Novel Indole Based Cyclophanes and Cylindrical Cyclophanes by Tandem Alkylation Methodology Using NaH.
Authors: Rajakumar Perumal , Swaroop Merikapudi Gayatri
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Synthesis of rctt, rccc, and rcct Diastereomers of Calix[4]methylresorcinarenes Based on p‐Tolualdehyde. X‐Ray Diffraction Study of the rcct Isomer. Formation of rctt and rccc Cavitands in a Cone Conformation.
Authors: Prosvirkin A. V. , Kazakova E. Kh. , Gubaidullin A. T. , Litvinov I. A. , Gruner M. , Habicher W. D. , Konovalov A. I.
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Synthesis of Chiral Allenes from Ynamides Through a Highly Stereoselective Saucy—Marbet Rearrangement.
Authors: Kurtz Kimberly C. M. , Frederick Michael O. , Lambeth Robert H. , Mulder Jason A. , Tracey Michael R. , Hsung Richard P.
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Mild Organocatalytic α‐Methylenation of Aldehydes.
Authors: Erkkilae Anniina , Pihko Petri M.
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Stereoselective Electrocatalytic Transformation of Malonate and Alkylidenecyanoacetates into (E)‐3‐Substituted 2‐Cyanocyclopropane‐1,1,2‐tricarboxylates.
Authors: Elinson Michail N. , Feducovich Sergey K. , Starikova Zoya A. , Vereshchagin Anatolii N. , Belyakov Pavel A. , Nikishin Gennady I.
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Reaction of Magnesium Cyclopropylidene with N‐Lithio Arylamines: A Method for Generation of α‐Amino‐Substituted Cyclopropylmagnesiums and a Study for Their Reactivity with Electrophiles.
Authors: Satoh Tsuyoshi , Miura Mariko , Sakai Ken , Yokoyama Yoshimi
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Stereoselective Reduction of N‐(3‐Arylcyclobutylidene)amines.
Authors: Verniest Guido , Claessens Sven , De Kimpe Norbert
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
New Systems for Classical Nitrosohalogenation of Alkenes. Part 1. Reactions of Alkenes with Ethyl Nitrite in the Presence of Phosphorus Halides and Thionyl Chloride.
Authors: Bondarenko O. B. , Gavrilova A. Yu. , Tikhanushkina V. N. , Zyk N. V.
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Synthesis of Trisubstituted Alkenes by Reductive Dehydroxylation of Baylis—Hillman Adducts Using Polymethylhydrosiloxane (PMHS) and Catalytic B(C6F5)3.
Authors: Chandrasekhar S. , Chandrashekar G. , Vijeender K. , Reddy M. Srinivasa
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Room‐Temperature Nucleophilic Aromatic Fluorination: Experimental and Theoretical Studies.
Authors: Sun Haoran , DiMagno Stephen G.
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Aromatic Borylation/Amidation/Oxidation: A Rapid Route to 5‐Substituted 3‐Amidophenols.
Authors: Shi Feng , Smith Milton R. III , Maleczka Robert E. Jr.
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
The Importance of Alkali Cations in the [{RuCl2(p‐cymene)}2]—Pseudo‐dipeptide‐Catalyzed Enantioselective Transfer Hydrogenation of Ketones.
Authors: Vaestila Patrik , Zaitsev Alexey B. , Wettergren Jenny , Privalov Timofei , Adolfsson Hans
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Enantioselective Rhodium‐Catalyzed Addition of Arylboronic Acids to Aldehydes Using Chiral Spiro Monophosphite Ligands.
Authors: Duan Hai‐Feng , Xie Jian‐Hua , Shi Wen‐Jian , Zhang Qi , Zhou Qi‐Lin
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Direct Nucleophilic Acylation of Nitroalkenes Promoted by a Fluoride Anion/Thiourea Combination.
Authors: Mattson Anita E. , Zuhl Andrea M. , Reynolds Troy E. , Scheidt Karl A.
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Oxidative De‐aromatization of para‐Alkyl Phenols into para‐Peroxyquinols and para‐Quinols Mediated by Oxone as a Source of Singlet Oxygen.
Authors: Carreno M. Carmen , Gonzalez‐Lopez Marcos , Urbano Antonio
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Hydroxylamine as an Ammonia Equivalent in Microwave‐Enhanced Aminocarbonylations.
Authors: Wu Xiongyu , Wannberg Johan , Larhed Mats
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Convenient Preparation of tert‐Butyl Esters.
Authors: Taber Douglass F. , Gerstenhaber David A. , Zhao Xia
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
A Mild and Chemoselective Solvent‐Free Method for the Synthesis of N‐Aryl and N‐Alkylsulfonamides.
Authors: Massah Ahmad R. , Kazemi Foad , Azadi Davood , Farzaneh Shakiba , Aliyan Hamid , Naghash Hamid Javaherian , Momeni Ahmad R.
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Michael Addition of Thiols to α‐Enones in Ionic Liquids with and without Organocatalysts.
Authors: Meciarova Maria , Toma Stefan , Kotrusz Peter
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Origin of the Diastereoselection in the Indium‐Mediated Addition of Haloallylic Sulfones to Aldehydes.
Authors: Min Jae‐Hong , Jung Se‐Young , Wu Bo , Oh Jung Taek , Lah Myoung Soo , Koo Sangho
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Palladium‐Catalyzed Suzuki—Miyaura Cross‐Coupling Using Phosphinous Acids and Dialkyl(chloro)phosphane Ligands.
Authors: Wolf Christian , Ekoue‐Kovi Kekeli
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Rhodium‐Catalyzed Enantioselective 1,4‐Additions of Arylboronic Acids to Substituted Enones.
Authors: Urbaneja Laura Mediavilla , Krause Norbert
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
An Efficient and Improved Synthesis of 1,5‐Diketones: Versatile Conjugate Addition of Nucleophiles to α,β‐Unsaturated Enones and Alkynones.
Authors: Shankar Ravi , Jha Ashok K. , Singh Uma Sharan , Hajela K.
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Rhenium‐ and Aniline‐Catalyzed One‐Pot Annulation of Aromatic Ketones and α,β‐Unsaturated Esters Initiated by C—H Bond Activation.
Authors: Kuninobu Yoichiro , Nishina Yuta , Shouho Makoto , Takai Kazuhiko
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
An Improved Synthetic Route to Angularly Functionalized Hydrofluorene Derivatives Through Pd(0)‐Catalyzed Heck Reaction.
Authors: Banerjee Mainak , Mukhopadhyay Ranjan , Achari Basudeb , Banerjee Asish K.
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
[60]Fullerene‐Fused Lactones: Manganese(III) Acetate‐Mediated Synthesis and Novel Reductive Ring Opening.
Authors: Wang Guan‐Wu , Li Fa‐Bao , Zhang Ting‐Hu
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Novel Methodology for the Preparation of Five‐, Seven‐, and Nine‐Membered Fused Rings on C60.
Authors: Hatzimarinaki Maria , Orfanopoulos Michael
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
α‐Heteroarylation of Esters, Lactones, Amides, and Lactams by Nucleophilic Aromatic Substitution.
Authors: Shen Hong C. , Ding Fa‐Xiang , Colletti Steven L.
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Asymmetric Dihydroxylation of β,γ‐Unsaturated Carboxylic Esters with Trisubstituted C=C Bonds — Enantioselective Syntheses of Trisubstituted γ‐Butyrolactones.
Authors: Kapferer Tobias , Brueckner Reinhard
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
On‐Water Chemistry: Copper‐Catalyzed Straightforward Synthesis of Benzo[b]furan Derivatives in Neat Water.
Authors: Carril Monica , SanMartin Raul , Tellitu Imanol , Dominguez Esther
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Catalytic Asymmetric Hydrogenation of Indoles Using a Rhodium Complex with a Chiral Bisphosphine Ligand PhTRAP.
Authors: Kuwano Ryoichi , Kashiwabara Manabu , Sato Koji , Ito Takashi , Kaneda Kohei , Ito Yoshihiko
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Identification of an Indole Series of Prostaglandin D2 Receptor Antagonists.
Authors: Sturino Claudio F. , et al. et al.
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Novel 1,3‐Dithiolan‐2‐ones Using Sodium α‐Cyanoketene Dithiolates.
Authors: Elgemeie G. H. , Elghandour A. H. , Elzanaty A. M. , Ahmed S. A.
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Discovery of Novel Hydroxy Pyrazole Based Factor IXa Inhibitor.
Authors: Vijaykumar Dange , Sprengeler Paul A. , Shaghafi Michael , Spencer Jeffrey R. , Katz Brad A. , Yu Christine , Rai Roopa , Young Wendy B. , Schultz Brian , Janc James
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Facile and Versatile Annulation of the Imidazole Ring: Single and Sequential Cyclization Reactions of Fischer Carbene Complexes with 1,4‐Diazafulvenes.
Authors: Barluenga Jose , Garcia‐Rodriguez Jaime , Martinez Silvia , Suarez‐Sobrino Angel L. , Tomas Miguel
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
3‐[6‐(2‐Dimethylamino‐1‐imidazol‐1‐yl‐butyl)‐naphthalen‐2‐yloxy] ‐2,2‐dimethyl‐propionic Acid as a Highly Potent and Selective Retinoic Acid Metabolic Blocking Agent.
Authors: Mulvihill Mark J. , et al. et al.
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Characteristics of the Synthesis of Substituted and Condensed 2‐Methyl‐1,3‐diazoles.
Authors: Liakina A. Yu. , Mikhura I. V. , Popova I. S. , Formanovsky A. A.
Published: August 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.