bluuebunny/crossref_metadata_2025_split huggingface dataset:
Efficient Synthesis of Solasodine (Ia), O‐Acetylsolasodine (Ib), and Soladulcidine (II) as Anticancer Steroidal Alkaloids.
Authors: Zha Xiaoming , Sun Hongbin , Hao Jia , Zhang Yihua 
Published: April 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 Mannich‐Type Reactions of Ketoimines.
Authors: Suto Yutaka , Kanai Motomu , Shibasaki Masakatsu 
Published: April 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.
2,3‐Anhydrosugars in Glycoside Bond Synthesis. Application to α‐D‐Galactofuranosides.
Authors: Bai Yu , Lowary Todd L. 
Published: April 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.
Conversion of Glycals to 1‐Azido‐2‐iodo Sugars Using N‐Iodosuccinimide/Sodium Azide or Potassium Iodide/Oxone Reagent Systems: Application in the Synthesis of Methyl N‐Acetyl‐α‐D‐lividosaminide (IX).
Authors: Rawal Girish K. , Rani Shikha , Madhusudanan K. P. , Vankar Yashwant D. 
Published: April 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 Concise Formal Synthesis of Unnatural (+)‐Aphanorphine from (2S,4R)‐4‐Hydroxyproline.
Authors: Ma Zhiqiang , Zhai Hongbin 
Published: April 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 Total Synthesis of 5‐Methoxypsoralen.
Authors: Roux Delphine , Makki Safwat , Bevalot Francoise , Humbert Philippe 
Published: April 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 Phenolic Constituents from Balanophora polyandra with Radical‐Scavenging Activity
Authors: Wang Kai‐Jin , Zhang Ying‐Jun , Yang Chong‐Ren 
Published: April 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 Practical Synthesis of the Ansa Chain of Benzenic Ansamycin Antibiotics: Total Synthesis of an Ansatrienol Derivative.
Authors: Kashin Dmitry , Meyer Axel , Wittenberg Ruediger , Schoening Kai‐Uwe , Kamlage Stefan , Kirschning Andreas 
Published: April 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.
[4 + 2]‐Annulations of Chiral Organosilanes: Application to the Total Synthesis of Leucascandrolide A (I).
Authors: Su Qibin , Dakin Les A. , Panek James S. 
Published: April 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 2‐epi‐Amphidinolide E: An Unexpected and Highly Selective C(2) Inversion During an Esterification Reaction.
Authors: Va Porino , Roush William R. 
Published: April 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.
(3R)‐4‐[(3R)‐3‐Amino‐4‐(2,4,5‐trifluorophenyl)butanoyl] ‐3‐(2,2,2‐trifluoroethyl)‐1,4‐diazepan‐2‐one, a Selective Dipeptidyl Peptidase IV Inhibitor for the Treatment of Type 2 Diabetes.
Authors: Biftu Tesfaye , et al. et al. 
Published: April 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.
2,6‐Disubstituted N‐Arylsulfonyl Piperidines as γ‐Secretase Inhibitors.
Authors: Pissarnitski Dmitri A. , et al. et al. 
Published: April 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.
Design, Synthesis, and Biological Evaluation of New (2E,6E)‐10‐(Dimethylamino)‐3,7‐dimethyl‐2,6‐decadien‐1‐ol Ethers as Inhibitors of Human and Trypanosoma cruzi Oxidosqualene Cyclase.
Authors: Galli Ubaldina , Oliaro‐Bosso Simonetta , Taramino Silvia , Venegoni Serena , Pastore Emanuele , Tron Gian Cesare , Balliano Gianni , Viola Franca , Sorba Giovanni 
Published: April 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.
Discovery of Low Nanomolar Non‐Hydroxamate Inhibitors of Tumor Necrosis Factor‐α Converting Enzyme (TACE).
Authors: Duan James J.‐W. , et al. et al. 
Published: April 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.
The Environmentally Friendly Synthesis of Heteropolyacids.
Authors: Valle Graciela M. , Matkovic Silvana R. , Gambaro Luis A. , Briand Laura E. 
Published: April 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.
Recent Developments in the Metal‐Catalyzed Reactions of Metallocarbenoids from Propargylic Esters
Authors: Marco‐Contelles Jose , Soriano Elena 
Published: April 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.
Alkyl Phosphinites: Versatile Synthetic Intermediates for Dehydration Condensation Reactions
Authors: Mukaiyama Teruaki , Yamabe Hokuto 
Published: April 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.
Molecular Recognition of Oxoanions Based on Guanidinium Receptors
Authors: Blondeau Pascal , Segura Margarita , Perez‐Fernandez Ruth , de Mendoza Javier 
Published: April 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.
2,2′:6′,2′′‐Terpyridines: From Chemical Obscurity to Common Supramolecular Motifs
Authors: Constable Edwin C. 
Published: April 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.
Functionalized Cucurbiturils and Their Applications
Authors: Kim Kimoon , Selvapalam Narayanan , Ko Young Ho , Park Kyeng Min , Kim Dongwoo , Kim Jeeyeon 
Published: April 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.
Fluoro‐β‐lactams as Useful Building Blocks for the Synthesis of Fluorinated Amino Acids, Dipeptides, and Taxoids
Authors: Ojima Iwao , Kuznetsova Larisa , Ungureanu Ioana Maria , Pepe Antonela , Zanardi Ilaria , Chen Jin 
Published: April 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 γ,δ‐Unsaturated Amino Acids via Palladium‐Catalyzed Allylic Alkylation of Chelated Glycine Ester Enolates
Authors: Bauer Michael , Kazmaier Uli 
Published: April 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.
1,1‐Bis(phosphorus‐functionalized) Alk‐1‐enes
Authors: Stankevic M. , Pietrusiewicz K. M. 
Published: April 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.
1‐(Organooxy)‐1‐(organoselanyl)‐ and 1‐(Organooxy)‐1‐(organotellanyl)alk‐1‐enes
Authors: Doelling W. 
Published: April 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.
Alk‐1‐ynyldiazonium Salts, 1‐Azidoalk‐1‐ynes, and 1‐Nitroalk‐1‐ynes
Authors: Banert K. 
Published: April 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.
Antibody Engineering‐Based Approach for Hapten Immunometric Assays with High Sensitivity
Authors: Kobayashi Norihiro , Kato Yoshinori , Oyama Hiroyuki , Goto Junichi 
Published: April 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.
Preservation of Organic Matter in Marine Sediments: Controls, Mechanisms, and an Imbalance in Sediment Organic Carbon Budgets?
Authors: Burdige David J. 
Published: April 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.
Recent Advances in Planar Tetracoordinate Carbon Chemistry
Authors: Merino Gabriel , Mendez‐Rojas Miguel A. , Vela Alberto , Heine Thomas 
Published: April 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.
Can Antimigratory Drugs Be Screened in vitro? A Review of 2D and 3D Assays for the Quantitative Analysis of Cell Migration
Authors: Decaestecker Christine , Debeir Olivier , Van Ham Philippe , Kiss Robert 
Published: April 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.
Katalytische Prozesse bei der Wertstoffgewinnung aus natürlichen Ölen und Fetten
Authors: Behr A. , Westfechtel A. 
Published: April 2007

AbstractPflanzliche Öle wie Rapsöl, Sonnenblumenöl, Palmöl oder Kokosöl bestehen aus Triglyceriden, die unterschiedliche Kettenverteilungen aufweisen. Die Nutzung dieser Rohstoffe für chemisch‐technische Produkte sowie als Treibstoff (Biodiesel), letztlich als Substitut für Mineralöl, wird in der Politik vielfältig diskutiert. Entsprechend der Kettenverteilung ergeben sich bei den Basisprodukten wie Fettsäuren, Fettalkoholen und Estern unterschiedliche physikalische Eigenschaften, die zu verschiedenen Anwendungsfeldern führen. Während Kettenlängen im Bereich von C‐12 wichtige Rohstoffe für Reinigungsmittel darstellen, werden C‐18‐Ketten überwiegend in technischen Anwendungen genutzt, z. B. als Schmiermittel. Die Herstellung von natürlichen Fettalkoholen erfolgt durch heterogen katalysierte Hochdruckhydrierung von Methylestern oder Fettsäuren. Die katalytische Derivatisierung ungesättigter Fettstoffe kann durch Funktionalisierung, Oligomerisierung, Oxidationen oder Metathese erfolgen. Dabei wird eine neue funktionelle Gruppe in die oleochemische Verbindung eingeführt, die C‐Zahl des Moleküls vergrößert bzw. verkleinert oder eine Verzweigung in die Fettkette eingeführt. Durch diese chemischen Variationen der Fettstoffe sind Produkte mit vollkommen neuen Eigenschaften und Anwendungsbereichen zugänglich.
Deckung des Energiebedarfs von Bioethanolanlagen durch erneuerbare Energieträger
Authors: Wukovits W. , Pfeffer M. , Beckmann G. , Friedl A. 
Published: April 2007

AbstractDie Wirtschaftlichkeit der Herstellung von Bioethanol zur Nutzung als Treibstoff hängt sehr stark vom Energiebedarf des Prozesses ab. Zur nachhaltigen Produktion von Biotreibstoff trägt neben der Reduzierung des Energiebedarfs auch der Einsatz von erneuerbaren Energieträgern bei. Mittels Prozesssimulation wurde für Anlagenkapazitäten von 15 000, 60 000, 100 000 und 200 000 t/a Ethanol untersucht, unter welchen Bedingungen es möglich ist, den Energiebedarf einer Ethanolanlage aus erneuerbarer Energie und aus Reststoffen der Ethanol‐ und Rohstoffproduktion zu decken.
Reaktoren für die Fischer‐Tropsch‐Synthese
Authors: Güttel R. , Kunz U. , Turek T. 
Published: April 2007

AbstractDie Fischer‐Tropsch‐Synthese wurde in Deutschland entdeckt und ab 1920 in kurzer Zeit zur technischen Reife entwickelt. Im 21. Jahrhundert erlebt das Verfahren eine Renaissance, da flüssige Treibstoffe zukünftig auch aus alternativen Rohstoffen wie Erdgas, Kohle oder Biomasse hergestellt werden müssen. Für die technische Durchführung der stark exothermen Reaktion haben sich bisher Rohrbündelreaktoren und Blasensäulenreaktoren durchgesetzt. Da beide Reaktortechnologien Nachteile aufweisen, werden neue Reaktorkonzepte untersucht. Zur Intensivierung von Stofftransportvorgängen in mehrphasigen Reaktoren werden alternative Katalysatorgeometrien wie Wabenkörper, Packungen oder Schwämme entwickelt. Eine gute Katalysatorausnutzung bei isothermer Reaktionsführung wird in mikrostrukturierten Reaktoren erreicht. Schließlich wird auch die Eignung von Membranreaktoren für die Fischer‐Tropsch‐Synthese betrachtet. Nach Darstellung der historischen Entwicklung und des erreichten Standes der Technik werden Chancen und Herausforderungen der neuen Reaktortechnologien diskutiert.
Das Konzept der Bioraffinerie – Produktion von Plattformchemikalien und Finalprodukten
Authors: Kamm B. , Kamm M. 
Published: April 2007

AbstractDie Nutzung von nachwachsenden Rohstoffen wird in den nächsten Jahren und Jahrzehnten aus vielen Gründen an Bedeutung gewinnen und die nationalen Volkswirtschaften und globale Weltwirtschaft gravierend verändern. Die partielle oder gar vollständige Umstellung ganzer Volkswirtschaften auf erneuerbare Rohstoffe erfordert völlig neue Ansätze in Forschung, Entwicklung und Produktion. Die Entwicklung von Bioraffinerien stellt dabei den Schlüssel für eine integrierte Produktion von Nahrungsmitteln, Futtermitteln, Chemikalien, Materialien, Gebrauchsgütern und Kraftstoffen der Zukunft dar. Bioraffinerien kombinieren die notwendigen Technologien von biogenen Rohstoffen mit denen der Plattformchemikalien und Finalprodukte. Das Hauptaugenmerk ist auf die Verknüpfung von biotechnologischer und chemischer Stoffwandlung und die Entwicklung der Bioraffineriesysteme: die Lignocellulose‐Feedstock‐Bioraffinerie, die Getreide‐Ganzpflanzen‐Bioraffinerie, die Grüne Bioraffinerie, das Zwei‐Plattform‐Konzept sowie die Plattformchemikalien gerichtet.
Rohstoffwandel
Authors: Vogel G. H. 
Published: April 2007

AbstractDie Änderung der Rohstoffbasis ist für die chemische Industrie nichts Neues, immer wurden damit eine Innovationswelle und ein Aufschwung angestoßen. Eine Voraussetzung ist, frühzeitig die wissenschaftlichen und technologischen Grundlagen für einen erneuten Rohstoffwandel zu entwickeln. Gerade die chemische Industrie, der die Naturgesetze wohl vertraut sind, sollte ihre Zukunft nicht auf Wachstum, sondern auf Nachhaltigkeit ausrichten, um die bis 2050 erwartete Weltbevölkerung von neun Milliarden Menschen mit ihrem überproportional steigenden Rohstoffhunger versorgen zu können.
Nachwachsende Rohstoffe in der chemischen Industrie – Weg vom Öl?
Authors: Nordhoff S. , Höcker H. , Gebhardt H. 
Published: April 2007

AbstractSteigende fossile Rohstoffpreise legen den Schluss nahe, dass Produkte auf Basis nachwachsender Rohstoffe über kurz oder lang prinzipiell wirtschaftlich werden. Dieses weit verbreitete Paradigma wird in der vorliegenden Arbeit hinterfragt. Preiskopplungen, wie sie seit Dekaden insbesondere bei den petrochemischen Rohstoffen zu beobachten sind, erfolgen nun auch verstärkt bei nachwachsenden Rohstoffen. Haupttreiber ist die konkurrierende energetische Verwertung, da sowohl fossile als auch nachwachsende Rohstoffe vornehmlich für Wärme, Strom und Mobilität genutzt werden. Daraus folgt, dass die Preise durch die energetische Verwertung bestimmt werden. Anhand einfacher Überlegungen wird gezeigt, wie Preise nachwachsender Kohlenstoffquellen mit den Rohölpreisen korrelieren. Der einzusetzende Rohstoff wird mit steigenden Ölpreisen ebenfalls teurer. Damit können Erwartungen an die Preisentwicklung fossiler Energieträger auch für die Bewertung alternativer Verfahren genutzt werden. Dadurch wird jedoch die Annahme, dass ein steigender Rohölpreis die Wirtschaftlichkeit alternativer Produkte und Prozesse auf Basis nachwachsender Rohstoffe begünstigt, erheblich in Frage gestellt. Im Umkehrschluss folgt daraus, dass diese Produkte und Prozesse bereits heute wirtschaftlich sein müssen. Gerade bei neuen Ansätzen der Weißen Biotechnologie ist zu beachten, dass schon jetzt mit realistischen Annahmen die entsprechende Route wirtschaftlich darstellbar ist. Das eingangs erwähnte Paradigma wird damit zumindest sehr fragwürdig.
New method for measuring an optical property of a sample treated by FWA
Authors: Imura Kenji 
Published: April 2007

AbstractIn this article, a new method for measuring a total spectral radiance factor of a FWA‐treated sample illuminated by a specific standard illuminant is introduced. The method replaces an unstable real fluorescent standard by a bi‐spectral luminescent radiance factor data, which works as a virtual fluorescent standard (VFS) by knowing spectral intensity distributions of illuminations applied to the sample. The method utilizes two illuminations I1 and I2 whose relative spectral intensity distributions are different from each other and synthesizes a virtual illumination presenting the identical fluorescent spectral radiance factor to that presented by the standard illuminant with the VFS of the specific bi‐spectral luminescent radiance factor by linearly combining I1 and I2 with the suitable weighting factors. The applicability of the method is examined in principle by comparing ISO brightness and CIE whiteness index of fluorescent standard paper as a test sample obtained by this new method to the assigned values. © 2007 Wiley Periodicals, Inc. Col Res Appl, 32, 195–200, 2007
Oil transnational corporations: corporate social responsibility and environmental sustainability
Authors: Edoho Felix M. 
Published: April 2007

AbstractCorporate social responsibility (CSR) occupies the center stage of the debate on the operations of transnational corporations in the developing countries. The quest for profit maximization as the overriding value at the expense of corporate social responsibility puts some transnational corporations on a collision path with their Niger Delta host communities, who are demanding environmental sustainability. Militant groups have shut down flow stations and taken oil workers hostage. Unresponsiveness of oil firms to community demands for CSR is heightening the volatility of the Nigerian oil industry. The problem will intensify until oil firms initiate authentic CSR strategies to address the environmental havocs emanating from their operations. At the core of such strategies is recognizing the host communities as bona fide stakeholders and addressing their socioeconomic needs. Copyright © 2007 John Wiley & Sons, Ltd and ERP Environment.
Cyclin E/Cdk2 is required for sperm maturation, but not DNA replication, in early sea urchin embryos
Authors: Schnackenberg Bradley J. , Palazzo Robert E. , Marzluff William F. 
Published: April 2007

AbstractThe cell cycle is driven by the activity of cyclin/cdk complexes. In somatic cells, cyclin E/cdk2 oscillates throughout the cell cycle and has been shown to promote S‐phase entry and initiation of DNA replication. In contrast, cyclin E/cdk2 activity remains constant throughout the early embryonic development of the sea urchin and localizes to the sperm nucleus following fertilization. We now show that cyclin E localization to the sperm nucleus following fertilization is not unique to the sea urchin, but also occurs in the surf clam, and inhibition of cyclin E/cdk2 activity by roscovitine inhibits the morphological changes indicative of male pronuclear maturation in sea urchin zygotes. Finally, we show that inhibition of cyclin E/cdk2 activity does not block DNA replication in the early cleavage cycles of the sea urchin. We conclude that cyclin E/cdk2 activity is required for male pronuclear maturation, but not for initiation of DNA replication in early sea urchin development. genesis 45:282–291, 2007. © 2007 Wiley‐Liss, Inc.
IL‐13 induces expression of CD36 in human monocytes through PPARγ activation
Authors: Berry Antoine , Balard Patricia , Coste Agnès , Olagnier David , Lagane Céline , Authier Hélène , Benoit‐Vical Françoise , Lepert Jean‐Claude , Séguéla Jean‐Paul , Magnaval Jean‐François , Chambon Pierre , Metzger Daniel , Desvergne Béatrice , Wahli Walter , Auwerx Johan , Pipy Bernard 
Published: April 2007

AbstractThe class B scavenger receptor CD36 is a component of the pattern recognition receptors on monocytes that recognizes a variety of molecules. CD36 expression in monocytes depends on exposure to soluble mediators. We demonstrate here that CD36 expression is induced in human monocytes following exposure to IL‐13, a Th2 cytokine, via the peroxisome proliferator‐activated receptor (PPAR)γ pathway. Induction of CD36 protein was paralleled by an increase in CD36 mRNA. The PPARγ pathway was demonstrated using transfection of a PPARγ expression plasmid into the murine macrophage cell line RAW264.7, expressing very low levels of PPARγ, and in peritoneal macrophages from PPARγ‐conditional null mice. We also show that CD36 induction by IL‐13 via PPARγ is dependent on phospholipase A2 activation and that IL‐13 induces the production of endogenous 15‐deoxy‐Δ12,14‐prostaglandin J2, an endogenous PPARγ ligand, and its nuclear localization in human monocytes. Finally, we demonstrate that CD36 and PPARγ are involved in IL‐13‐mediated phagocytosis of Plasmodium falciparum‐parasitized erythrocytes. These results reveal a novel role for PPARγ in the alternative activation of monocytes by IL‐13, suggesting that endogenous PPARγ ligands, produced by phospholipase A2 activation, could contribute to the biochemical and cellular functions of CD36.