bluuebunny/crossref_metadata_2025_split huggingface dataset:
One Href is not Enough
Authors: van der Vlist Eric 
Published: October 2011

The web is hyperlinks for the masses.
Hyperlinks are an old concept that has been invented before the web and to achieve this remarkable success, the web had to come out with a very simplified version of hyperlinks.
In the process a lot of features have been lost and some of them, such as the possibility to link to multiple targets have been lost.
This talk proposes to use modern techniques to regain this ability while remaining conform to existing standards and running in existing browsers.
CC Bond Formation via CH Activation and CN Bond Formation via Oxidative Amination Catalyzed by Palladium‐ Polyoxometalate Nanomaterials Using Dioxygen as the Terminal Oxidant
Authors: Chng Leng Leng , Zhang Jie , Yang Jinhua , Amoura Makhlouf , Ying Jackie Y. 
Published: October 2011

AbstractAn efficient heterogeneous palladium‐polyoxometalate catalyst with the formula Pd‐H6PV3Mo9O40/C has been successfully developed for carbon‐carbon (CC) bond formation via carbon‐hydrogen (CH) activation and carbon‐nitrogen (CN) bond formation via oxidative amination using oxygen as the terminal oxidant. The coupling processes are simple, and use relatively mild conditions to form the desired products. In addition, less waste is generated as no additional reagents such as organic/inorganic oxidants are required, and water is the only by‐product generated.
Highly (≥98%) Stereo‐ and Regioselective Trisubstituted Alkene Synthesis of Wide Applicability via 1‐Halo‐1‐alkyne Hydro‐ boration–Tandem Negishi–Suzuki Coupling or Organoborate Migratory Insertion
Authors: Xu Shiqing , Lee Ching‐Tien , Rao Honghua , Negishi Ei‐ichi 
Published: October 2011

Abstract(Z)‐1‐Halo‐1‐alkenylboranes (7), preparable in 80–90% yields as ≥98% isomerically pure compounds via hydroboration of 1‐halo‐1‐alkynes, have been converted to a wide range of trisubstituted alkenes via three different routes in the tail‐to‐head (T‐to‐H) direction, i.e., (i) palladium‐catalyzed Negishi–Suzuki tandem alkenylation, (ii) treatment with organolithium or Grignard reagents to generate α‐bromo‐1‐alkenylboronate complexes that can undergo migratory insertion of a carbon group (R2) to form (E)‐alkenylboranes with inversion of alkene configuration (≥98% inversion), followed by fluoride‐promoted Suzuki alkenylation, and (iii) Negishi coupling to generate (Z)‐alkenylboranes in ≥98% retention of configuration, followed by treatment with organolithium or Grignard reagents to produce trisubstituted alkenes with reversed stereo configurations. The synthetic utility of the present methodology has been demonstrated in the highly selective synthesis of the side chain of scyphostatin in 28% yield over nine steps in the longest linear sequence from allyl alcohol. Thus, this new tandem protocol has been emerged as the most widely applicable and highly selective route to trisubstituted alkenes including those that are otherwise difficult to prepare.
Efficient Trifluoromethylation of Activated and Non‐Activated Alkenyl Halides by Using (Trifluoromethyl)trimethylsilane
Authors: Hafner Andreas , Bräse Stefan 
Published: October 2011

AbstractAn efficient method for the trifluoromethylation of halogenated double bonds by using in situ generated “trifluoromethyl copper” is described. Herein, the most common trifluoromethyl source, (trifluoromethyl)trimethylsilane, was converted selectively into “trifluoromethyl copper” by using copper iodide as copper source and potassium fluoride as promoter. In 1,3‐dimethyl‐3,4,5,6‐tetrahydro‐2(1H)‐pyrimidinone (DMPU) as chelating solvent the trifluoromethylation of activated and non‐activated alkenyl halides occurred mostly in good to excellent yields in up to a gram scale.
Self‐Assembling and Size‐Selective Synthesis of Ni and NiO Nanoparticles Embedded in Ordered Mesoporous Carbon and Polymer Frameworks
Authors: Wang Wei , Wang Hai‐yan , Wei Wei , Xiao Zhi‐Guang , Wan Ying 
Published: October 2011

AbstractWe demonstrate the self‐assembling and size‐selective synthesis of uniform and highly dispersed Ni or NiO nanoparticles with diameters below 12 nm embedded in ordered mesoporous carbon or polymer frameworks. Self‐assembly is induced by evaporation of the solvent from a mixture of metal‐containing liquid crystalline (LC) mesophases of triblock copolymer and transition metal nitrate hydrate, and the carbon source is low‐polymerized phenolic resol. Characterization by XRD, N2 sorption isotherms, TEM, HRSEM, ICP‐AES, TG, and XPS techniques has indicated an ordered 2D hexagonal mesostructure, high surface areas between 524 and 721 m2 g−1, uniform pore sizes of about 4.0 nm, large pore volumes ranging from 0.34 to 0.58 cm3 g−1, and metal contents ranging from 0.6 to 10.0 wt %. There is a high degree of dispersion, and a small size of nanoparticles throughout the whole framework, without aggregation outside of the pores due to the confinement effect of the mesoporous ordered matrix. The mesoporous solids show excellent adsorption properties for dyes and permit an easy magnetic separation procedure. This method is expected to be applicable to other mesoporous transition metal(oxide)‐containing carbon catalysts.
Synthesis and Structural Characterization of Homochiral Homo‐oligomers of Parent cis‐ and trans‐Furanoid‐β‐Amino Acids
Authors: Pandey Sunil K. , Jogdand Ganesh F. , Oliveira João C. A. , Mata Ricardo A. , Rajamohanan Pattuparambil R. , Ramana Chepuri V. 
Published: October 2011

AbstractThe synthesis of homochiral homo‐oligomers of cis‐ and trans‐3‐aminotetrahydrofuran‐2‐carboxylic acids (parent cis‐ and trans‐furanoid‐β‐amino acids, referred to as “cis‐/trans‐FAA”) has been carried out to understand their secondary structures and their dependence on the ring heteroatom. The oligomers of two diastereomers have been shown to have a distinct left‐handed helicity. The cis‐FAA homo‐oligomers show a 14‐helix structure, in contrast to the homo‐oligomers of cis‐ACPC, which adopt a sheet like structure. The trans‐FAA homo‐oligomers were found to adopt a 12‐helix structure, the same trend found in trans‐ACPC homo‐oligomers. With the help of ab initio calculations, the structural features of cis‐ACPC and cis‐FAA hexamers were compared. We believe that the more compact packing of the cis‐FAA hexapeptide should be due to a more favorable interaction between the ring and the backbone amide hydrogen.
Synthesis of Chondramide A Analogues with Modified β‐Tyrosine and Their Biological Evaluation
Authors: Zhdanko Alexander , Schmauder Anke , Ma Christopher I. , Sibley L. David , Sept David , Sasse Florenz , Maier Martin E. 
Published: October 2011

AbstractStarting from cinnamates9, obtained by Wittig reaction or Heck coupling, the diols17were prepared by asymmetric dihydroxylation. This was followed by a regioselective substitution of the 3‐OH group with hydrazoic acid under Mitsunobu conditions. Methylation of the 2‐OH group and reduction of the azide group led to the β‐tyrosine derivatives8. Condensation with the dipeptide acid6furnished the tripeptide part of the chondramides. The derived acids21were combined with the hydroxy ester7to the esters22. Cleavage of thetert‐butyl groups and intramolecular lactam formation gave rise to the chondramide A analogues2 b–k. Growth inhibition assays showed most of the analogues to be biologically active. Some of them even reach the activity of jasplakinolide. It can be concluded that the 4‐position of the aryl ring in the β‐tyrosine of chondramide A tolerates structural modifications quite well.
Total Synthesis of Pamamycin‐649B
Authors: Fischer Petra , Gruner Margit , Jäger Anne , Kataeva Olga , Metz Peter 
Published: October 2011

AbstractThe first total synthesis of the macrodiolide antibiotic pamamycin‐649B (1) was achieved by using sultone methodology. The diethyl substituted larger hydroxy acid fragment was constructed in a concise fashion through domino elimination/alkoxide‐directed 1,6‐additions of ethyllithium to sultones derived from intramolecular Diels–Alder reaction of furan‐containing vinylsulfonates. Intermolecular Yamaguchi esterification of the two hydroxy acid building blocks and subsequent Yamaguchi cyclization eventually provided the target macrocycle 1. Since the final lactonization with formation of the ester linkage between C1′ and the C8 oxygen proceeded with complete C2′ epimerization, the more readily available C2′ epimeric smaller fragment could be used to streamline the synthetic sequence.
ChemInform Abstract: Facile Routes to ThIV, UIV, and NpIV Phosphites and Phosphates.
Authors: Villa Eric M. , Wang Shuao , Alekseev Evgeny V. , Depmeier Wulf , Albrecht‐Schmitt Thomas E. 
Published: October 2011

AbstractCompounds (III), (V), and (VII) are characterized by single crystal XRD and UV/VIS/NIR spectroscopy.
ChemInform Abstract: Solvent‐Free Aerobic Oxidation of Alcohols with 1‐Methyl‐2‐azaadamantane N‐Oxyl as a Recyclable Catalyst Through Phase Separation.
Authors: Kuang Yongbo , Nabae Yuta , Hayakawa Teruaki , Kakimoto Masa‐aki 
Published: October 2011

AbstractThe catalyst can be used several times and is in this regard recycled by phase separation.
ChemInform Abstract: Catalytic Decarboxylative Alkylation of β‐Keto Acids with Sulfonamides via the Cleavage of Carbon—Nitrogen and Carbon—Carbon Bonds.
Authors: Yang Cui‐Feng , Wang Jian‐Yong , Tian Shi‐Kai 
Published: October 2011

AbstractA range of β‐keto acids smoothly undergo decarboxylative alkylations with N‐benzylic or N‐allylic sulfonamides in the presence of FeCl3 to afford structurally diverse unsymmetric ketones in good to excellent yields and with extremely high regioselectivity.
ChemInform Abstract: Conia‐ene Annulation of the α‐Cyano β‐TMS‐Capped Alkynyl Cycloalkanone System and Its Synthetic Application.
Authors: Chin Chih‐Lung , Liao Cheng‐Feng , Liu Hsing‐Jang , Wong Ying‐Chieh , Hsieh Ming‐Tsang , Amancha Prashanth K. , Chang Chun‐Ping , Shia Kak‐Shan 
Published: October 2011

AbstractThe title reaction affords a variety of bicyclic silylmethylene‐substituted cyclopentane derivatives.
ChemInform Abstract: Synthesis of Unsymmetrical Benzils Using N‐Heterocyclic Carbene Catalysis.
Authors: Suzuki Yumiko , Bakar Abu Md. , Tanoi Takashi , Nomura Naoko , Sato Masayuki 
Published: October 2011

AbstractThe benzils (21 examples) are prepared under optimized conditions by nucleophilic aroylation of benzimidoyl chlorides with aromatic aldehydes followed by acid‐promoted hydrolysis of the resulting iminoethanones.
ChemInform Abstract: Imidazole‐Coordinated Monodentate NHC—Pd(II) Complex Derived from Proline and Its Application to the Coupling Reaction of Arylboronic Acids with Carboxylic Acid Anhydrides in Water at Room Temperature.
Authors: Shen Xiao‐Bao , Gao Ting‐Ting , Lu Jian‐Mei , Shao Li‐Xiong 
Published: October 2011

AbstractIn the presence of a new complex, cross‐coupling reaction of arylboronic acids with carboxylic acid anhydrides results in formation of diarylketones, mostly in high yields.
ChemInform Abstract: Efficient Organocatalytic Dual Activation Strategy for Preparing the Versatile Synthons (2E)‐1‐(Het)Aryl/styryl‐3‐(dimethylamino)prop‐2‐en‐1‐ones and α‐(E)‐[(Dimethylamino)methylene]cycloalkanones.
Authors: Bindal Sachin , Kumar Dinesh , Kommi Damodara N. , Bhatiya Sonam , Chakraborti Asit K. 
Published: October 2011

AbstractOptimized reaction conditions using 2‐guanidinoacetic acid as the catalyst are developed for the condensation of methyl ketones or cycloketones with acetal (II) to give E‐isomers of enaminones.
ChemInform Abstract: Efficient Synthesis of Substituted Polyarylphthalimides via Cycloaddition of Cyclopentadienones with 2‐Bromomaleimide.
Authors: Vanel Remi , Berthiol Florian , Bessieres Bernard , Einhorn Cathy , Einhorn Jacques 
Published: October 2011

AbstractThe reaction allows a general access to functionalized phthalimide structures and thus opens the way to new organocatalysts in areobic oxidation.
ChemInform Abstract: Oxidative Fragmentation of Oxiranes to Nitriles with Hypervalent Iodine(V) Reagents in Aqueous Ammonia.
Authors: Deshmukh Swapnil S. , Huddar Sameerana N. , Jadhav Ravindra R. , Akamanchi Krishnacharya G. 
Published: October 2011

AbstractNucleophilic ring‐opening of the starting epoxides with aqueous ammonia followed by oxidation of the intermediate amino alcohol with IBX results in formation of the corresponding nitriles.
ChemInform Abstract: Practical Synthesis of 2‐Arylacetic Acid Esters via Palladium‐Catalyzed Dealkoxycarbonylative Coupling of Malonates with Aryl Halides.
Authors: Song Bingrui , Rudolphi Felix , Himmler Thomas , Goossen Lukas J. 
Published: October 2011

AbstractTwo complementary protocols are developed, one of which is optimal for electron‐rich, the other for electron‐poor and sterically demanding aryl halides.
ChemInform Abstract: An Umpolung Sulfoxide Reagent for Use as a Functional Benzyl Carbanion Equivalent.
Authors: Pinna Giovanni , Belluci Maria Cristina , Malpezzi Luciana , Pisani Laura , Superchi Stefano , Volonterio Alessandro , Zanda Matteo 
Published: October 2011

AbstractA new family of umpolung sulfoxide reagents for the synthesis of α‐benzyl alcohols, chlorides, and acetamides is developed.
ChemInform Abstract: One‐Pot Synthesis of Fused‐Tetracyclic Scaffolds Employing a Lewis Acid Promoted Domino Reaction of Naphthoquinones.
Authors: Bendiabdellah Yassine , Villanueva‐Margalef Isabel , Misale Antonio , Nahar Kazi S. , Haque Mohammad R. , Thurston David E. , Zinzalla Giovanna 
Published: October 2011

AbstractThe reaction of substrates (I) with hydroxy‐ and amino‐functionalized cross‐conjugated trienes involves a cascade of heterocyclization via hemiacetal or imine formation, and intramolecular Diels—Ader reaction to provide access to polycyclic (heterocyclic) frameworks.
ChemInform Abstract: Synthesis of 4‐Aryl‐2(5H)‐furanones by Gold(I)‐Catalyzed Intramolecular Annulation.
Authors: Sun Haifeng , Huang He , Zhang Dengyou , Feng Enguang , Qian Wangke , Zhang Lei , Chen Kaixian , Liu Hong 
Published: October 2011

AbstractThe title reaction is carried out under mild conditions and shows excellent tolerance to various functional groups.
ChemInform Abstract: Synthesis, Cytotoxicity and Topoisomerase II Inhibitory Activity of Benzonaphthofurandiones (V).
Authors: Rhee Hee‐Kyung , Kwon Youngjoo , Chung Hwa‐Jin , Lee Sang Kook , Choo Hea‐Young Park 
Published: October 2011

AbstractAll the dihydroxy derivatives, e.g. (Va)—(Vd), exhibit relatively potent cytotoxicity.
ChemInform Abstract: Manganese Chloride as an Efficient Catalyst for Selective Transformations of Indoles in the Presence of a Keto Carbonyl Group.
Authors: Li Minghao , Yang Jie , Gu Yanlong 
Published: October 2011

AbstractMnCl2 (and MnBr2) is proved to be an effective catalyst for selective transformations of indoles, ring‐opening reaction of dihydropyrans, transesterification of β‐keto ester and multicomponent reactions.
ChemInform Abstract: Phenylboronic Acid Catalyzed—Cyanide‐Promoted, One‐Pot Synthesis of 2‐(2‐Hydroxyphenyl)benzoxazole Derivatives.
Authors: Lopez‐Ruiz Heraclio , Briseno‐Ortega Horacio , Rojas‐Lima Susana , Santillan Rosa , Farfan Norberto 
Published: October 2011

AbstractThe generality of the mild and efficient procedure is shown by synthesis of 19 derivatives of type (II) and (V) and extension to the preparation of methylene bis‐benzoxazoles (VIII).
ChemInform Abstract: Synthesis and Biological Activities of 2‐Amino‐thiazole‐5‐carboxylic Acid Phenylamide Derivatives.
Authors: Zhou Jinpei , et al. et al. 
Published: October 2011

AbstractThe compounds (VII) are evaluated for growth inhibitory activity against MCF‐7 and MDA‐MB 231 breast cancer and HT‐29 colon cancer cell lines.
ChemInform Abstract: A Straightforward Synthesis of 2‐Aminobenzothiazoles from Herz Compounds.
Authors: Neo Ana G. , Carrillo Rosa M. , Marcos Carlos F. 
Published: October 2011

AbstractThe key step consists of an iodine‐catalyzed insertion of aliphatic or aromatic isocyanides into the S—S bond of benzodithiazolones (I) which is accompanied by extrusion of sulfur monoxide.
ChemInform Abstract: FeCl3·6H2O‐Catalyzed Synthesis of Substituted cis‐2,6‐Tetrahydropyrans from ξ‐Hydroxy Allylic Derivatives.
Authors: Guerinot Amandine , Serra‐Muns Anna , Bensoussan Charlelie , Reymond Sebastien , Cossy Janine 
Published: October 2011

AbstractThe geometry of the substrate double bond does not affect the outcome of the reaction and both phenyl and mesityl groups are well tolerated.
ChemInform Abstract: Enantioselective Synthesis of 2‐Aryl‐3‐nitro‐2H‐chromenes Catalyzed by a Bifunctional Thiourea.
Authors: Zhang Zhiguo , Jakab Gergely , Schreiner Peter R. 
Published: October 2011

AbstractA range of nitrostyrenes undergoes a tandem oxa‐Michael‐aza‐Henry desulfonamidation process with salicyl N‐tosylimines to permit an enantioselective synthesis of the target compounds.
ChemInform Abstract: Synthesis of 4‐Hydroxy‐4H‐chromenes by Reaction of Salicylic Aldehydes with Alkynals Catalyzed by Silyl Prolinol Ethers.
Authors: Aleman Jose , Alvarado Cuauhtemoc , Marcos Vanesa , Nunez Alberto , Garcia Ruano Jose Luis 
Published: October 2011

AbstractOptimized conditions are developed which produce the desired hydroxychromenes as structural motifs of natural compounds either with higher yield and lower e.e.
ChemInform Abstract: Organocatalytic Asymmetric Synthesis of Functionalized 4H‐Chromenes via a One‐Pot Domino Michael‐Hemiacetalization and Dehydration Sequence.
Authors: Enders Dieter , Urbanietz Gregor , Raabe Gerhard 
Published: October 2011

AbstractThe procedure allows the preparation of the synthetically important skeleton with in part excellent enantioselectivity.
ChemInform Abstract: Synthesis of Fluorescence Pyriproxyfen Analogues as Juvenile Hormone Agonists.
Authors: Abe Hideki , Sato Akimi , Tokishita Shin‐ichi , Ohta Toshihiro , Ito Hisanaka 
Published: October 2011

AbstractThe fluorescence properties of the synthetic analogues (III) are investigated.
ChemInform Abstract: An Efficient Route to 1‐Aminoisoquinolines via AgOTf‐Catalyzed Reaction of 2‐Alkynylbenzaldoxime with Amine.
Authors: Zheng Danqing , Chen Zhiyuan , Liu Jianping , Wu Jie 
Published: October 2011

AbstractThe presence of PPF is essential for a successful performance of the title reaction.
ChemInform Abstract: Enantioselective Synthesis of Quinolizidines and Indolizidines via a Catalytic Asymmetric Hydrogenation Cascade.
Authors: Rueping Magnus , Hubener Lukas 
Published: October 2011

AbstractThe asymmetric reductive cyclization of aryl‐3‐quinolinylbutenones (I) is not complete after the first step and requires an additional reduction via catalytic hydrogenation.
ChemInform Abstract: Synthesis of Aza Coumarins by Nucleophilic Addition of Acetylenic Esters Catalyzed by Ph3P.
Authors: Mohtat Bita , Yavari Issa , Ameri Roza E. , Salahi Elnaz 
Published: October 2011

AbstractUnder neutral conditions, a mixture of functionalized aza‐coumarins is obtained.
ChemInform Abstract: Facile Synthesis of Tricyclic Oxazino‐ or Oxazepino‐Fused Tetrahydroquinolines via Intramolecular Reductive Amidation.
Authors: Mondal Shyamal , Maity Arindam , Naskar Subhendu , Paira Rupankar , Hazra Abhijit , Sahu Krishnendu B. , Saha Pritam , Das Saktipada , Banerjee Sukdeb , Mondal Nirup B. 
Published: October 2011

AbstractTreatment of esters (I) and (III) with zinc in acetic acid allows formation of title compounds (II) and (IV) under environmentally friendly mild conditions.
ChemInform Abstract: Convergent and Stereodivergent Synthesis of Complex 1‐Aza‐7‐oxabicyclo[2.2.1]heptanes.
Authors: Yang Dexi , Micalizio Glenn C. 
Published: October 2011

AbstractDensely functionalized tri‐ and tetrasubstituted title compounds such as (V) and (IX) or their enantiomerically pure analogues are prepared following a sequence defined by a new diastereoselective synthesis of (E)‐anti‐homoallylic primary amines, N‐oxidation and stereodivergent nitrone annulation.
ChemInform Abstract: Highly Efficient Ag(I)‐Catalyzed Regioselective Tandem Synthesis of Diversely Substituted Quinoxalines and Benzimidazoles in Water.
Authors: Rustagi Vineeta , Aggarwal Trapti , Verma Akhilesh K. 
Published: October 2011

AbstractThe presented reaction procedure provides the desired products with high regioselectivity under environmentally benign conditions.
ChemInform Abstract: Synthesis, Cytotoxicity Testing, and Structure—Activity Relationships of Novel 6‐Chloro‐7‐(4‐phenylimino‐4H‐3,1‐benzoxazin‐2‐yl)‐3‐ (substituted)‐1,4,2‐benzodithiazine 1,1‐Dioxides.
Authors: Pomarnacka Elzbieta , Kornicka Anita , Kuchnio Anna , Heinrichs Maike , Gruenert Renate , Gdaniec Maria , Bednarski Patrick J. 
Published: October 2011

AbstractThe title compounds are tested of their cytotoxic activity against 6 human cancer cell lines.
ChemInform Abstract: Efficient Synthesis, Structural Characterization and Antimicrobial Activity of Chiral Aryl Boronate Esters of 1,2‐O‐Isopropylidene‐α‐D‐xylofuranose.
Authors: Trivedi Rajiv , Reddy E. Rami , Kumar Ch. Kiran , Sridhar B. , Kumar K. Pranay , Rao M. Srinivasa 
Published: October 2011

AbstractStarting from the known protected α‐D‐xylofuranose (I), a simple and efficient approach towards a series of chiral aryl boronate esters (III) is described.
ChemInform Abstract: Chemistry of Phosphorus Ylides. Part 33. Synthesis and Antitumor Activities of Some New Chromenone Derivatives.
Authors: Maigali Soher S. , Abd‐El‐Maksoud Mansoura A. , Soliman Fouad M. 
Published: October 2011

AbstractThe reactions of the compounds (II) and (VI) with different chromenones (I), (IV), (VIII), and (XII) lead to the formation of new chromenone derivatives, which have carbocycles and heterocycles of various ring sizes and heteroatom patterns as substituents.
ChemInform Abstract: Asymmetric aza‐Michael Addition under Ultra‐High Pressure: Short Bias to Polyhydroxylated Piperidines.
Authors: Moura Sidnei , Thomassigny Christine , Ligeour Caroline , Greck Christine , Joseph Delphine , Drege Emmanuelle , Dumas Francoise 
Published: October 2011

AbstractCompounds (I) are prepared from commercial sugars by a Wittig olefination approach.
ChemInform Abstract: exo‐Cyclopamine — A Stable and Potent Inhibitor of Hedgehog‐Signaling.
Authors: Heretsch Philipp , Buettner Anita , Tzagkaroulaki Lito , Zahn Stefan , Kirchner Barbara , Giannis Athanassios 
Published: October 2011

AbstractThe compound (I) is a stable and tenfold more potent inhibitor of hedgehog‐signaling than its parent cyclopamine.
ChemInform Abstract: Efficient Access to a Dihydropyran‐Containing Macrolide via a Transannular Oxy‐Michael Reaction: Total Synthesis of (+)‐Aspergillide C.
Authors: Kobayashi Hisataka , Kanematsu Makoto , Yoshida Masahiro , Shishido Kozo 
Published: October 2011

AbstractAn enantioselective total synthesis of the title compound (II) involves the shown key step via a transannular oxy‐Michael reaction.
Future Power Plant Requirements
Authors: Spliethoff Hartmut , Wauschkuhn Arnim , Schuhbauer Christian 
Published: October 2011

AbstractDie Dynamik der Stromerzeugung aus Photovoltaik‐ und Windkraftanlagen und die Qualität der Prognosen insbesondere von Windstrom bestimmen die Anforderungen an die Dynamik konventioneller Kraftwerke. Moderne Kohle‐ und GuD‐Kraftwerke sind flexibel und können zumindest mittelfristig die fluktuierende Einspeisung aus erneuerbaren Energien (EE) ausgleichen. GuD‐Kraftwerke weisen deutlich kürzere Anfahrtszeiten auf. Mit der zukünftig geringeren Kraftwerksauslastung sind die niedrigeren Investitionskosten der wesentliche Vorteil von GuD‐Kraftwerken. Weiter steigende Anteile EE benötigen Speicher. Aufgrund der hohen Energiedichte eignen sich synthetische Energieträger für eine jahreszeitliche Speicherung. Vergasungskraftwerke weisen gegenüber dem heutigen Dampfkraftwerk für feste Brennstoffe Vorteile auf.