bluuebunny/crossref_metadata_2025_split huggingface dataset:
Optimal projection estimation for transcatheter aortic valve implantation based on contrast‐aortography
Authors: Tzikas Apostolos , Schultz Carl , Van Mieghem Nicolas M. , de Jaegere Peter P.T. , Serruys Patrick W. 
Published: July 2010

AbstractWe investigate the accuracy of a new software system (C‐THV, Paieon) designed to calculate the optimal projection (OP) view for transcatheter aortic valve implantation (TAVI) based on two aortograms, and its agreement with the operator's choice. An optimal fluoroscopic working view projection with all three aortic cusps depicted in one line, is crucial during TAVI. In our institution selection of the OP is based on multislice computed tomography (MSCT). Seventy‐three consecutive patients referred for TAVI were divided into two groups. For the first group (53 patients, retrospective cohort) we compared the OP views estimated by C‐THV with the ones estimated by MSCT. For the second group (20 patients, prospective cohort), we compared the OP views estimated by C‐THV with the operator's choice during TAVI. For the retrospective cohort, the mean absolute difference (mean ± SD) between C‐THV and MSCT was 6.6 ± 4.9 degrees. In 77% of the cases the mean difference between C‐THV and MSCT was <10 degrees. For the prospective cohort, the mean absolute difference (mean ± SD) between C‐THV and the operator's choice was 5.5 ± 3.4 degrees. A mean difference of <10 degrees was found in 90% of the cases. In this study we found that the C‐THV software estimated the OP view for TAVI with good accuracy. The level of agreement between C‐THV and either the MSCT or the operator's choice was deemed satisfactory, with the vast majority of observed differences being <10 degrees. © 2010 Wiley‐Liss, Inc.
Silica‐Encapsulated Pd Nanoparticles as a Regenerable and Sintering‐Resistant Catalyst
Authors: Forman Arnold J. , Park Jung‐Nam , Tang Wei , Hu Yong‐Sheng , Stucky Galen D. , McFarland Eric W. 
Published: July 2010

AbstractIrreversible, thermally induced sintering of heterogeneous catalysts is one of the most deleterious causes of activity loss during catalytic reaction and/or regeneration. Silica‐coated Pd catalysts (Pd@SiO2) were prepared by a simple one‐pot, water‐in‐oil microemulsion method and investigated as models for a general synthesis to encapsulate active nanoparticle catalysts to provide stability during extended periods of cycling and regeneration under harsh experimental conditions. An idealized stability test would involve both a catalyst whose activity changes significantly as particles sinter and test conditions that could readily induce sintering. Acetylene hydrogenation was chosen as the test reaction because its catalytic and regenerative (oxidative coke removal) cycling induce the destructive sintering conditions desired for such a test. When compared with Pd particles deposited on the outside of an identical silica support (Pd/SiO2 catalyst), the silica‐encapsulated catalyst Pd@SiO2 deactivates at a much slower rate and is readily regenerated without sintering over multiple reaction and regeneration cycles. It is also found that silica encapsulation suppresses coking and in situ formation of PdC. TEM, XRD, BET, XPS, and TGA, before and after reaction and regeneration, were used to characterize the encapsulated Pd@SiO2 catalysts and compare them to conventionally supported Pd/SiO2.
Preactivation‐Based, One‐Pot Combinatorial Synthesis of Heparin‐like Hexasaccharides for the Analysis of Heparin–Protein Interactions
Authors: Wang Zhen , Xu Yongmei , Yang Bo , Tiruchinapally Gopinath , Sun Bin , Liu Renpeng , Dulaney Steven , Liu Jian , Huang Xuefei 
Published: July 2010

AbstractHeparin (HP) and heparan sulfate (HS) play important roles in many biological events. Increasing evidence has shown that the biological functions of HP and HS can be critically dependent upon their precise structures, including the position of the iduronic acids and sulfation patterns. However, unraveling the HP code has been extremely challenging due to the enormous structural variations. To overcome this hurdle, we investigated the possibility of assembling a library of HP/HS oligosaccharides using a preactivation‐based, one‐pot glycosylation method. A major challenge in HP/HS oligosaccharide synthesis is stereoselectivity in the formation of the cis‐1,4‐linkages between glucosamine and the uronic acid. Through screening, suitable protective groups were identified on the matching glycosyl donor and acceptor, leading to stereospecific formation of both the cis‐1,4‐ and trans‐1,4‐linkages present in HP. The protective group chemistry designed was also very flexible. From two advanced thioglycosyl disaccharide intermediates, all of the required disaccharide modules for library preparation could be generated in a divergent manner, which greatly simplified building‐block preparation. Furthermore, the reactivity‐independent nature of the preactivation‐based, one‐pot approach enabled us to mix the building blocks. This allowed rapid assembly of twelve HP/HS hexasaccharides with systematically varied and precisely controlled backbone structures in a combinatorial fashion. The speed and the high yields achieved in glycoassembly without the need to use a large excess of building blocks highlighted the advantages of our approach, which can be of general use to facilitate the study of HP/HS biology. As a proof of principle, this panel of hexasaccharides was used to probe the effect of backbone sequence on binding with the fibroblast growth factor‐2 (FGF‐2). A trisaccharide sequence of 2‐O‐sulfated iduronic acid flanked by N‐sulfated glucosamines was identified to be the minimum binding motif and N‐sulfation was found to be critical. This provides useful information for further development of more potent compounds towards FGF‐2 binding, which can have potential applications in wound healing and anticancer therapy.
Detection of Carbocationic Species in Zeolites: Large Crystals Pave the Way
Authors: Stavitski Eli , Pidko Evgeny A. , Kox Marianne H. F. , Hensen Emiel J. M. , van Santen Rutger A. , Weckhuysen Bert M. 
Published: July 2010

AbstractLarge zeolite crystals have been used as model systems for the investigation of diffusion and catalytic reactivity phenomena in microporous host materials for at least two decades. However, their potential in assisting the detection of elusive reactive intermediates appears to have been underestimated. Herein, we show that a complementary use of vibrational and optical spectroscopy in combination with theoretical calculations allows for the unambiguous identification of transient carbocationic species generated upon the acid‐catalyzed oligomerization of styrene derivatives within zeolite H‐ZSM‐5. Thanks to the mediated diffusion of the reactant in the large H‐ZSM‐5 crystals and minimal external surface the reaction intermediates can be accumulated within zeolite micropores in sufficient concentrations to allow their detection by synchrotron‐based IR microspectroscopy. The UV/Vis and IR spectra display strong polarization dependence of on the molecular alignment of the dimeric styrene carbocations imposed by the zeolite channels and cages that can be rationalized in terms of the electronic and vibrational transitions of the intrazeolite carbocations. Based on these findings, a molecular‐level picture of the macroscopic arrangement of the reaction intermediates confined within microporous zeolite matrices can be devised.
Selectivity in Metal‐Catalyzed CarbonCarbon Bond Cleavage of Alkylidenecyclopropanes
Authors: Masarwa Ahmad , Marek Ilan 
Published: July 2010

AbstractWhen more complex system leads to simpler reactivity profile; the ring‐opening of strained three‐membered rings such as methylene‐ and alkylidenecyclopropanes generally lead to several products. If one starts with more functionalized carbon skeletons, selective reactions are now observed and rationalization as well as synthetic applications are described in this concept article. This methodology could be used to the preparation of challenging structural motifs possessing quaternary carbon stereocenters in acyclic systems.
ChemInform Abstract: Ternary Chlorides in the Systems NaCl/HoCl3 and NaCl/ErCl3.
Authors: SEIFERT H. J. , SANDROCK J. 
Published: July 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: NMR and UV Study of 1,1′‐(α,ω‐Alkanediyl)bis[thymine] and 1,1′‐(α,ω‐Alkanediyl)bis[uracil].
Authors: ITAHARA T. 
Published: July 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Bismuth Bromide as an Efficient and Versatile Catalyst for the Cyanation and Allylation of Carbonyl Compounds and Acetals with Organosilicon Reagents.
Authors: KOMATSU N. , UDA M. , SUZUKI H. , TAKAHASHI T. , DOMAE T. , WADA M. 
Published: July 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Bismuth Bromide‐Catalyzed Reductive Coupling of Carbonyl Compounds and Its Application to the Synthesis of Novel Crownophanes.
Authors: KOMATSU N. , ISHIDA J. , SUZUKI H. 
Published: July 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Synthesis of Amides of 2‐Substituted Cinchoninic Acids and Their Cyclization into Amides of 1,2,4‐Triazolo[4,3‐a]quinoline‐9‐ and 1,2,4‐Triazino[4,3‐a]quinoline‐10 Carboxylic Acids.
Authors: MIKHALEV A. I. , KON'SHIN M. E. , VAKHRIN M. I. 
Published: July 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Reaction of 2‐Phenylaminothiazoline with α‐Haloketones.
Authors: DEMCHENKO A. M. , CHUMAKOV V. A. , KRASOVSKII A. N. , PIROZHENKO V. V. , LOZINSKII M. O. 
Published: July 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Sequential Cyclization/Silylation of Enynes Catalyzed by an Organoyttrium Complex.
Authors: MOLANDER G. A. , RETSCH W. H. 
Published: July 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: 2,3‐Pyridyne Formation by Fluoride‐Induced Desilylation‐Elimination.
Authors: WALTERS M. A. , SHAY J. J. 
Published: July 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Manganese Triacetate Mediated Regeneration of Carbonyl Compounds from Oximes.
Authors: DEMIR A. S. , TANYELI C. , ALTINEL E. 
Published: July 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: A Mild and Efficient Method for Selective Cleavage of Ketals and Acetals Using Lithium Chloride in Water—Dimethyl Sulfoxide.
Authors: MANDAL P. K. , DUTTA P. , ROY S. C. 
Published: July 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Highly Regio‐ and Diastereoselective Carbon—Carbon Bond Formation Reaction of Unsymmetrical Zirconacyclopentanes Using Copper Salt.
Authors: TAKAHASHI T. , NISHIHARA Y. , HARA R. , HUO S. , KOTORA M. 
Published: July 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: A New Method for the Synthesis of α,α‐Difluoro‐β‐hydroxy Esters Through the Enolization of S‐tert‐Butyl Difluoroethanethioate.
Authors: WEIGEL J. A. 
Published: July 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Double Asymmetric Dihydroxylation of 1,5‐Hexadiene.
Authors: MAIER M. E. , REUTER S. 
Published: July 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Synthesis of 2‐(3‐Hydroxyacetonyl)malonic Aldehyde and Its Derivatives and Their Reaction with 5‐Aminotetrazole.
Authors: SKOV H. R. , ELISEEV O. L. , VARTANYAN M. M. 
Published: July 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Preparation of Ring‐Substituted Phenoxyamine Derivatives (IV)
Authors: MIYAZAWA E. , SAKAMOTO T. , KIKUGAWA Y. 
Published: July 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: α,β‐Unsaturated Sulfones by the Wittig Reaction of Stable Ylide with Aldehydes under Microwave Irradiation.
Authors: FU C. , XU C. , HUANG Z.‐Z. , HUANG X. 
Published: July 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Regiocontrolled Benzannulation of Diaryl(gem‐dichlorocyclopropyl)methanols for the Synthesis of “Unsymmetrically” Substituted α‐Arylnaphthalenes.
Authors: NISHII Y. , YOSHIDA T. , TANABE Y. 
Published: July 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Activation of Hydrogen Peroxide for Asymmetric Epoxidation by Chiral Arenesulfonimidoylimidazoles.
Authors: KLUGE R. , HOCKE H. , SCHULZ M. 
Published: July 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Diastereoselective Enolsilane Coupling Reactions.
Authors: MILLER S. J. , BAYNE C. D. 
Published: July 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Chemical and Biological Properties of 5‐Indolones.
Authors: WEBER W. , HABERMANN A. , MAISCH C. C. , EGER K. 
Published: July 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Functionalized Pyrrolidinones Derived from (S)‐Pyroglutamic Acid by Cycloaddition Reactions.
Authors: BAILEY J. H. , CHERRY D. T. , CRAPNELL K. M. , MOLONEY M. G. , SHIM S. B. , BAMFORD M. J. , LAMONT R. B. 
Published: July 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Microwave‐Assisted Acetalization of Carbonyl Compounds Catalyzed by Reusable Envirocat® Supported Reagents.
Authors: BEREGSZASI T. , MOLNAR A. 
Published: July 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Chemistry of 5‐Oxodihydroisoxazoles. Part 18. Synthesis of Oxazoles by the Photolysis and Pyrolysis of 2‐Acyl‐5‐oxo‐2,5‐dihydroisoxazoles.
Authors: PRAGER R. H. , SMITH J. A. , WEBER B. , WILLIAMS C. M. 
Published: July 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Synthetic Elaboration of the Side Chain of (R)‐2,2‐Dimethyl‐3‐(tert‐butoxycarbonyl)‐4‐ethynyloxazolidine: A New Regio‐ and Stereoselective Strategy to δ‐Functionalized β‐Amino Alcohols.
Authors: REGINATO G. , MORDINI A. , CARACCIOLO M. 
Published: July 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Hydrophobic Effect on 1,3‐Dipolar Cycloaddition Reactions.
Authors: PANDEY P. S. , PANDEY I. K. 
Published: July 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Practical Oxirane Ring Opening with in situ Prepared LiCN; Synthesis of (2S,3R)‐3‐(2,4‐Difluorophenyl)‐3‐hydroxy‐2‐methyl‐4‐ (1H‐1,2,4‐triazol‐1‐yl)‐1‐butanenitrile.
Authors: TSURUOKA A. , NEGI S. , YANAGISAWA M. , NARA K. , NAITO T. , MINAMI N. 
Published: July 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: A Practical Synthesis of 3‐Methoxyflavones.
Authors: DENG B.‐L. , LEPOIVRE J. A. , LEMIERE G. , DOMMISSE R. , CLAEYS M. , BOERS F. , DE GROOT A. 
Published: July 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Synthesis and Biological Activities of New Heterocyclic Aromatic Retinoids.
Authors: DIAZ P. , MICHEL S. , STELLA L. , CHARPENTIER B. 
Published: July 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Synthesis of N‐Methylmorpholinium 6‐Methyl‐4‐ (2‐thienyl)‐5‐phenylcarbamoyl‐3‐cyano‐1,4‐dihydropyridine‐2‐thiolate and Its Reaction with Several Functionally Substituted Methyl Halides.
Authors: DYACHENKO V. D. , KRIVOKOLYSKO S. G. , LITVINOV V. P. 
Published: July 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Organic Nitrates. Part 2. Synthesis and Biological Activities of 4‐Nitrooxymethylphenyl‐1,4‐dihydropyridines.
Authors: LEHMANN J. , KAHLICH R. , MEYER ZUM GOTTESBERGE C. , FRICKE U. 
Published: July 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.