bluuebunny/crossref_metadata_2025_split huggingface dataset:
Silica Sulfuric Acid as an Efficient and Reusable Catalyst for the Pechmann Synthesis of Coumarins under Solvent‐Free Conditions.
Authors: Dabiri Minoo , Salehi Peyman , Zolfigol Mohammad Ali , Baghbanzadeh Mostafa 
Published: July 2007

AbstractChemInform 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 Heterocyclic Ketene Aminals with Bis(methylthio)methylene Malononitrile: Synthesis of Polyfunctionalized Pyridine‐Fused 1,3‐Diazaheterocycles from Heterocyclic Ketene Aminals.
Authors: Liao Jiang‐Peng , Zhang Ti , Yu Chu‐Yi , Huang Zhi‐Tang 
Published: July 2007

AbstractChemInform 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.
Possible Synthesis of (3‐Alkoxycarbonylmethyl‐4‐oxo‐3,4‐dihydro‐2‐pyrimidinylsulfanyl)acetate Esters.
Authors: Yakubkene V. , Valutite G. , Lopatin A. , Vainilavicius P. 
Published: July 2007

AbstractChemInform 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.
Element‐Substituted Propynals in the Biginelli Reaction.
Authors: Novokshonov V. V. , Novokshonova I. A. , Ushakov I. A. , Medvedeva A. S. 
Published: July 2007

AbstractChemInform 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 1‐Acyl and Aroyl‐2‐hydroxy‐3,3‐dimethylindolines with Arylamines Catalyzed by BF3‐Etherate. Formation of Dihydroindolo[1,2‐c]quinazoline.
Authors: Watanabe Akiko , Yamaguchi Koki , Ito Fumikazu , Yoshitake Yasuyuki , Harano Kazunobu 
Published: July 2007

AbstractChemInform 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 One‐Pot Synthesis of Some Novel Derivatives of Thiazolo[2,3‐b]dihydropyrimidinone Possessing 4‐Methylthiophenyl Moiety and Evaluation of Their Antibacterial and Antifungal Activities.
Authors: Ashok Mithun , Holla Bantwal Shivarama , Kumari Nalilu Suchetha 
Published: July 2007

AbstractChemInform 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 α,α‐, α,α′‐Dihalothiones with 8‐Mercaptoquinolinium Halides as a Route to Tetrahydro‐1,4‐thiazinoquinolinium Halides.
Authors: Shagun L. G. , Dorofeev I. A. , Mikhailova I. A. , Shagun V. A. , Voronkov M. G. 
Published: July 2007

AbstractChemInform 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 One‐Step Synthesis of 1,2,4‐Triazino[2,3‐c]quinazolines.
Authors: Karpenko Oleksandr V. , Kovalenko Sergiy I. , Chekotylo Oleksiy O. , Shishkina Svitlana V. 
Published: July 2007

AbstractChemInform 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 6,7‐Dihydro‐5H‐dibenz[c,e]azepine
Authors: Stankevicius A. P. , Yanushene L. N. 
Published: July 2007

AbstractChemInform 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.
Practical Synthesis of (‐)‐α‐Aminobenzolactam via Nitration‐Cyclization of L‐Homophenylalanine Ethyl Ester.
Authors: Yu Luoting , Huang Jiling , Chang Ching‐Yao , Yang Teng‐Kuei 
Published: July 2007

AbstractChemInform 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.
Efficient Method for the Synthesis of Dibenzo[b,f]thiepin‐10‐ones under Mild Conditions.
Authors: Zhang Qiang , Peng Youyi , Welsh William J. 
Published: July 2007

AbstractChemInform 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.
Simple, Stable, and Versatile Double‐Allylation Reagents for the Stereoselective Preparation of Skeletally Diverse Compounds.
Authors: Peng Feng , Hall Dennis G. 
Published: July 2007

AbstractChemInform 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.
Organocatalytic Highly Enantioselective Nitroaldol Reaction of α‐Ketophosphonates and Nitromethane.
Authors: Mandal Tanmay , Samanta Sampak , Zhao Cong‐Gui 
Published: July 2007

AbstractChemInform 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 One‐Pot Synthesis of α‐Amino Phosphonates Catalyzed by Bismuth Nitrate Pentahydrate.
Authors: Bhattacharya Asish K. , Kaur Tanpreet 
Published: July 2007

AbstractChemInform 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 P‐Stereogenic Benzophospholanes via Palladium‐Catalyzed Intramolecular Cyclization.
Authors: Brunker Tim J. , Anderson Brian J. , Blank Natalia F. , Glueck David S. , Rheingold Arnold L. 
Published: July 2007

AbstractChemInform 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.
Total Synthesis of (S)‐(+)‐ and (R)‐(‐)‐Curcudiols Based on 1,2‐Aryl Migration via Phenonium Ion.
Authors: Ehara Takeru , Yokoyama Hirofumi , Ono Machiko , Akita Hiroyuki 
Published: July 2007

AbstractChemInform 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.
Four New Triterpene Glycosides from Nigella damascena.
Authors: Yoshimitsu Hitoshi , Nishida Makiko , Okawa Masafumi , Nohara Toshihiro 
Published: July 2007

AbstractChemInform 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.
Peptide‐Embedded Heterocycles by Mild Single and Multiple Aza‐Wittig Ring Closures.
Authors: Riedrich Matthias , Harkal Surendra , Arndt Hans‐Dieter 
Published: July 2007

AbstractChemInform 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 IB‐01211, a Cyclic Peptide Containing 2,4‐Concatenated Thia‐ and Oxazoles, via Hantzsch Macrocyclization.
Authors: Hernandez Delia , Vilar Gemma , Riego Estela , Canedo Librada M. Canedo Librada M. , Cuevas Carmen , Albericio Fernando , Alvarez Mercedes 
Published: July 2007

AbstractChemInform 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 Pictet—Spengler Condensation: A Convenient Synthetic Route to Bioactive Manzamine Derivatives.
Authors: Choo Yeun‐Mun , Hamann Mark T. 
Published: July 2007

AbstractChemInform 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.
Total Synthesis of Khafrefungin Using Highly Stereoselective Vinylogous Mukaiyama Aldol Reaction.
Authors: Shirokawa Shin‐ichi , Shinoyama Mariko , Ooi Isao , Hosokawa Seijiro , Nakazaki Atsuo , Kobayashi Susumu 
Published: July 2007

AbstractChemInform 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 vitro Antimalarial Activity of Hyperforin, a Prenylated Acylphloroglucinol. A Structure—Activity Study.
Authors: Verotta Luisella , Appendino Giovanni , Bombardelli Ezio , Brun Reto 
Published: July 2007

AbstractChemInform 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.
Imidazolium Dialkylphosphates — A Class of Versatile, Halogen‐Free and Hydrolytically Stable Ionic Liquids.
Authors: Kuhlmann Esther , Himmler Simone , Giebelhaus Heidi , Wasserscheid Peter 
Published: July 2007

AbstractChemInform 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.
Loline Alkaloids: Currencies of Mutualism
Authors: Schardl Christopher L. , Grossman Robert B. , Nagabhyru Padmaja , Faulkner Jerome R. , Mallik Uma P. 
Published: July 2007

AbstractChemInform 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 Catalytic Reactions Promoted by Organoactinoids
Authors: Barnea E. , Andrea T. , Berthet J.‐C. , Ephritikhine M. , Eisen Moris S. 
Published: July 2007

AbstractChemInform 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.
Supramolecular Catalysis of Organic Reactions Involving Cyclodextrins
Authors: Rao K. Rama , Nageswar Y. V. D. , Krishnaveni N. Srilakshmi , Surendra K. 
Published: July 2007

AbstractChemInform 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.
Deprotonative Metalation Using Ate Compounds: Synergy, Synthesis, and Structure Building
Authors: Mulvey Robert E. , Mongin Florence , Uchiyama Masanobu , Kondo Yoshinori 
Published: July 2007

AbstractChemInform 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 Alkylation of Indoles
Authors: Bandini Marco , Eichholzer Astrid , Umani‐Ronchi Achille 
Published: July 2007

AbstractChemInform 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.
Sulfur‐ and Selenium‐Substituted Ketenes
Authors: Palomo C. , Aizpurua J. M. , Ganboa I. , Gomez‐Bengoa E. 
Published: July 2007

AbstractChemInform 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.
Neutrophils and the Blood—Brain Barrier Dysfunction After Trauma
Authors: Scholz Martin , Cinatl Jindrich , Schaedel‐Hoepfner Michael , Windolf Joachim 
Published: July 2007

AbstractChemInform 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 Introduction to Time‐Resolved Resonance Raman Spectroscopy and Its Application to Reactive Intermediates
Authors: Phillips David Lee , Kwok Wai Ming , Ma Chensheng 
Published: July 2007

AbstractChemInform 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 procedure for designing robust control of systems with bounded uncertain parameters
Authors: Mizukami Koichi , Wu Hansheng , Suzumura Fumihiro 
Published: July 2007

AbstractIn recent years, the robust control design problem has drawn considerable attention because it allows one to ensure desirable closed‐loop properties in the presence of model uncertainties. As a result, several design methods have been developed.This paper discusses mainly the problem of robust control design of systems with bounded uncertain parameters, and presents a new design method, called “incentive design,” for this design problem. This method is based mainly on such a consideration whereby the designed robust control law can ensure a most favorable value of the cost functional regardless of how the uncertain parameters vary within given bounds. Therefore, in this sense, the existence of the uncertainty in controlled systems has at least no bad effect on the optimal value of the cost functional.This paper gives first the procedure for designing robust control of the systems with bounded uncertain parameters, in general. Then for a class of uncertain linear quadratic systems, a robust control law is designed concretely and a numerical example is presented. It is shown from this derivation and this numerical example that the method proposed in this paper is effective and feasible for some practical control problems with bounded uncertain parameters. The design method developed here may be expected to have some further applications for practical control problems in future.
Phosphaalkenes R1C(O)–P=C(NMe2)2 (R1=Ph, 4‐EtC6H4): Versatile Reagents for 1,3‐Dipolar Cycloadditions to Phosphenium Complexes [Cp(CO)2M = PPh2] (M = Mo, W)
Authors: Weber Lothar , Noveski Gabriel , Uthmann Stefan , Stammler Hans‐Georg , Neumann Beate 
Published: July 2007

AbstractReaction of [Cp(CO)2M = PPh2] [where M = Mo (2a), W (2b)] with an excess of the phosphaalkenes arylC(O)P=C(NMe2)2 [where aryl = Ph (3), 4‐EtC6H4 (5)] afforded the metallophosphaalkenes [Cp(CO)2Ma–P=C(aryl)–O–PbPh2(Ma–Pb)] [where M = Mo, aryl = Ph (4a); M = W, aryl = Ph (4b); M = Mo, aryl = 4‐EtC6H4 (6a); M = W, aryl = 4‐EtC6H4 (6b)] as orange crystals. Compounds 4a,b and 6a,b were characterized by means of spectroscopy (IR, 1H, 13C and 31P NMR spectroscopy and MS). Moreover, the molecular structures of 3, 4a, and 6b were determined by X‐ray diffraction analysis. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007)
Redox‐Induced μ‐Acetato and μ‐Oxo Core Interconversions in Dinuclear Manganese Tris(2‐methylpyridyl)amine (tpa) Complexes: Isolation and Characterization of [Mn2III(μ‐O)(μ‐O2CCH3)(tpa)2]3+ (Eur. J. Inorg. Chem. 20/2007)
Authors: Collomb Marie‐Noëlle , Mantel Claire , Romain Sophie , Duboc Carole , Leprêtre Jean‐Claude , Pécaut Jacques , Deronzier Alain 
Published: July 2007

AbstractThe cover picture shows the electro‐induced core interconversions in three dinuclear manganese tris(2‐methylpyridyl)amine (tpa) complexes. The mono‐(μ‐oxo) mono‐(μ‐acetato) [Mn2III,III(O)(O2CCH3)(tpa)2]3+ and the bis‐(μ‐oxo) [Mn2IV,IV(O)2(tpa)2]4+ complexes are selectively and quasi‐quantitatively generated by sequential exhaustive electrochemical two‐electron oxidations of the bis‐(μ‐acetato) [Mn2II,II(O2CCH3)2(tpa)2]2+ complex. At each step one acetato bridge is substituted by an oxo bridge coming from the deprotonation of one residual water molecule in the solvent. The background picture shows some cyclic voltammograms recorded during this study. Details are discussed in the article by M.‐N. Collomb et al. on p. 3179 ff. We thank Dr. Damien Jouvenot for the design of the cover picture.
Electrogenerated Chemiluminescence of Lucigenin in Ethanol Solution at a Polycrystalline Gold Electrode
Authors: Cui Hua , Zhang Hao , Shi Ming‐Juan , Wang Wei , Dong Yong‐Ping , Guo Ji‐Zhao 
Published: July 2007

AbstractThe electrogenerated chemiluminescence (ECL) behavior of lucigenin in ethanol solution at a polycrystalline gold electrode was studied under conventional cyclic voltammetric conditions. Compared with the ECL of lucigenin in aqueous solution, one cathodic ECL peak (ECL‐1 at −0.98 V versus SCE) with a shoulder (S1 at −0.42 V) and three new anodic ECL peaks (ECL‐2 at −0.53 V, ECL‐3 at 0.20 V, and ECL‐4 at 0.51 V) were observed, respectively, on the curve of ECL intensity versus potential. The effects of initial potential scan direction, the presence of O2 or N2, potential scan ranges, supporting electrolyte and the concentration of lucigenin on these ECL peaks were examined. The electrochemistry of lucigenin in ethanol solution was also studied. The emitter of all ECL peaks was identified as N‐methylacridone (NMA) by analyzing the ECL spectra. The mechanism for these ECL peaks is proposed to be due to the reactions of lucigenin and its redox products such as Luc and DBA with dissolved oxygen or O2 electrogenerated by the dissolved oxygen at different potentials. The formation of new anodic ECL peaks in ethanol solution is due to longer lifetime of superoxide ions and easier electro‐oxidation of DBA in nonaqueous solution, revealing that the solvent plays an important role in the lucigenin ECL reactions.
Automated Data Acquisition Setup for Interfacial Tension and Capacitance Measurements at Hg‐Solution Contacts Under LabVIEW Control
Authors: Bozatzidis Andreas , Anastopoulos Anastos G. , Laopoulos Theodoros 
Published: July 2007

AbstractA system capable of making highly accurate and reproducible automatic measurements of both interfacial tension and capacitance at Hg‐solution contacts in student and research laboratories is presented, based on the control of an arrangement comprising a lock‐in amplifier, a potentiostat and a three electrode electrochemical cell by means of LabVIEW software.
Simultaneous Determination of Cadmium, Lead, Copper, and Thallium in Highly Saline Samples by Anodic Stripping Voltammetry (ASV) Using Mercury‐Film and Bismuth‐Film Electrodes
Authors: de Carvalho Leandro M. , do Nascimento Paulo C. , Koschinsky Andrea , Bau Michael , Stefanello Raquel F. , Spengler Cristiane , Bohrer Denise , Jost Cristiane 
Published: July 2007

AbstractThis paper describes a comparative study of the simultaneous determination of Cd(II), Pb(II), Tl(I), and Cu(II) in highly saline samples (seawater, hydrothermal fluids, and dialysis concentrates) by ASV using the mercury‐film electrode (MFE) and the bismuth‐film electrode (BiFE) as working electrodes. The features of MFE and BiFE as working electrodes for the single‐run ASV determinations are shown and their performances are compared with that of HMDE under similar conditions. It was observed that the stripping peak of Tl(I) was well separated from Cd(II) and Pb(II) peaks in all the studied saline samples when MFE was used. Because of the severe overlapping of Bi(III) and Cu(II) stripping peaks in the ASV using BiFE, as well as the overlapping of Pb(II) and Tl(I) stripping peaks in the ASV using HMDE, the simultaneous determination of these metals was not possible in highly saline medium using these both working electrodes. The detection limits calculated for the metals using MFE and BiFE (deposition time of 60 s) were between 0.043 and 0.070 μg L−1 for Cd(II), between 0.060 and 0.10 μg L−1 for Pb(II) and between 0.70 and 8.12 μg L−1 for Tl(I) in the saline samples studied. The detection limits calculated for Cu(II) using the MFE were 0.15 and 0.50 μg L−1 in seawater/hydrothermal fluid and dialysis concentrate samples, respectively. The methods were applied to the simultaneous determination of Cd(II), Pb(II), Tl(I), and Cu(II) in samples of seawater, hydrothermal fluids and dialysis concentrates.
Parallel large eddy simulation of turbulent flow around MIRA model using linear equal‐order finite element method
Authors: Choi Hyounggwon , Kang Sungwoo , Yoo Jung Yul 
Published: July 2007

AbstractA parallel large eddy simulation code that adopts domain decomposition method has been developed for large‐scale computation of turbulent flows around an arbitrarily shaped body. For the temporal integration of the unsteady incompressible Navier–Stokes equation, fractional 4‐step splitting algorithm is adopted, and for the modelling of small eddies in turbulent flows, the Smagorinsky model is used. For the parallelization of the code, METIS and Message Passing Interface Libraries are used, respectively, to partition the computational domain and to communicate
data between processors. To validate the parallel architecture and to estimate its performance, a three‐dimensional laminar driven cavity flow inside a cubical enclosure has been solved. To validate the turbulence calculation, the turbulent channel flows at Reτ = 180 and 1050 are simulated and compared with previous results. Then, a backward facing step flow is solved and compared with a DNS result for overall code validation. Finally, the turbulent flow around MIRA model at Re = 2.6 × 106 is simulated by using approximately 6.7 million nodes. Scalability curve obtained from this simulation shows that scalable results are obtained. The calculated drag coefficient agrees better with the experimental result than those previously obtained by using two‐equation turbulence models. Copyright © 2007 John Wiley & Sons, Ltd.
Divergence‐free discontinuous Galerkin schemes for the Stokes equations and the MAC scheme
Authors: Kanschat Guido 
Published: July 2007

AbstractWe show that recently studied discontinuous Galerkin discretizations in their lowest order version are very similar to the marker and cell (MAC) finite difference scheme. Indeed, applying a slight modification, the exact MAC scheme can be recovered. Therefore, the analysis applied to the DG methods applies to the MAC scheme as well and the DG methods provide a natural generalization of the MAC scheme to higher order and irregular meshes. Copyright © 2007 John Wiley & Sons, Ltd.