bluuebunny/crossref_metadata_2025_split huggingface dataset:
Geordnete Verhältnisse. Mathematische Anschauungsmodelle im frühen 20. Jahrhundert
Authors: Sattelmacher Anja 
Published: December 2013

AbstractSorted Geometry. Mathematical Models on Display around 1900. By 1870, around the same time that mathematics turned away from intuitive Euclidean geometry, increasingly three‐dimensional geometric models were being incorporated into mathematical education at German universities and technical colleges. Connected to the increasingly specialized nature of engineering education as well as the growing demand for students in the fields of mechanics, kinematics, and statics in 1900, mathematics education at all levels called for the inclusion of more practical applications, often via the use of objects or images. Examining the works of the Darmstadt‐based professor of descriptive geometry Hermann Wiener (1857–1939), this essay discusses the various ways that three‐dimensional mathematical models were presented – both in combination with text and image, as well as part of an arranged series of objects in a showcase. As a mathematics professor, Wiener dedicated himself to the construction and use of models. He produced several series of wire models and sold them with an accompanying catalogue containing price lists and images. The models and the images were explicitly meant to serve as tools for enhancing students' intuitive mathematical knowledge. The visual knowledge thus generated was therefore cultivated not only through the research style of professors, but also as a result of the way in which things were presented and shown in a variety of non‐academic contexts around 1900, such as shop windows and exhibition showcases. This essay reveals that these various new ways of arranging mathematical models had an epistemic value that was deeply connected to visual concepts of that time period.
Expression of Eph receptor A10 is correlated with lymph node metastasis and stage progression in breast cancer patients
Authors: Nagano Kazuya , Kanasaki So‐ichiro , Yamashita Takuya , Maeda Yuka , Inoue Masaki , Higashisaka Kazuma , Yoshioka Yasuo , Abe Yasuhiro , Mukai Yohei , Kamada Haruhiko , Tsutsumi Yasuo , Tsunoda Shin‐ichi 
Published: December 2013

AbstractEph receptor A10 (EphA10) is a valuable breast cancer marker that is highly expressed in breast cancer tissues by comparison with normal breast tissues, as we previously reported. However, the role of EphA10 expression in breast cancer is not well understood. Here, we have analyzed the expression of EphA10 at the mRNA‐ and protein‐level in clinical breast cancer tissues and then evaluated the relationship with clinicopathological parameters for each sample. EphA10 mRNA expression was quantified by real‐time polymerase chain reaction using complimentary DNA (cDNA) samples derived from breast cancer patients. Lymph node (LN) metastasis and stage progression were significantly correlated with EphA10 expression at the mRNA level (P = 0.0091 and P = 0.034, respectively). Furthermore, immunohistochemistry (IHC) staining of breast cancer tissue microarrays (TMAs) revealed that EphA10 expression at the protein level was also associated with LN metastasis and stage progression (P = 0.016 and P = 0.011, respectively). These results indicate that EphA10 expression might play a role in tumor progression and metastasis. Our findings will help elucidate the role of EphA10 in clinical breast cancer progression.
The Effect of Interfacial Design on the Electrochemical Detection of DNA and MicroRNA Using Methylene Blue at Low‐Density DNA Films
Authors: Tavallaie Roya , Darwish Nadim , Gebala Magdalena , Hibbert D. Brynn , Gooding J. Justin 
Published: December 2013

AbstractHerein, we study the effect of interfacial design, specifically the orientation of a DNA probe strand, the length of the diluent and the type of target (DNA vs. microRNA), on the electrochemical response from methylene blue (MB) at low‐density DNA films. The probe DNA interfaces are formed from mixed self‐assembled monolayers of single‐stranded DNA (ss‐DNA) and a hydroxyl terminated alkanethiol diluents on gold surfaces. Variation in the current from the DNA–MB complex after hybridization with complementary and single adenine–cytosine mismatch DNA target is shown to depend on whether the 3′ or 5′ end is tethered to the electrode and the length of the diluent (6‐mercapto‐1‐hexanol vs. 9‐mercapto‐1‐nonanol). The sensors show better mismatch discrimination of single base pairs when both the duplexes are tethered from the 5′ end to the electrode and with a longer‐chain (9‐mercapto‐1‐nonanol) diluent. Of particular note is our demonstration that the DNA/microRNA duplex exhibits greater single adenine–cytosine mismatch discrimination when compared to the corresponding DNA/DNA duplex. This study contributes to the development of selective DNA and microRNA biosensors.
Lithium Insertion/Deinsertion Characteristics of Nanostructured Amorphous Tantalum Oxide Thin Films
Authors: Dang Hoang X. , Lin Yong‐Mao , Klavetter Kyle C. , Cell Trevor H. , Heller Adam , Mullins C. Buddie 
Published: December 2013

AbstractLithium uptake and release by pure, morphology‐controlled Ta2O5 films is studied. Porous nanocolumnar films, reactively e‐beam deposited at 70° versus normal, are rapidly lithiated and delithiated, withstanding volume‐change‐associated stresses. Their reversible gravimetric Coulombic capacities at 1 C, 2 C, 5 C, and 10 C rates are, respectively, 252, 225, 192, 168 mAh g−1. After 100 cycles at 1 C rate the films retain 96 % of their Coulombic capacity and 99 % of their Coulombic efficiency. The rapid lithiation/delithiation is attributed to formation of amorphous, Li+ permeable, nanoporous LiTaO3.
Iron‐Catalyzed Friedel–Crafts Benzylation with Benzyl TMS Ethers at Room Temperature
Authors: Sawama Yoshinari , Shishido Yuko , Kawajiri Takahiro , Goto Ryota , Monguchi Yasunari , Sajiki Hironao 
Published: December 2013

AbstractFriedel–Crafts benzylations between unactivated arenes and benzyl alcohol derivatives are clean and straightforward processes to construct biologically useful di‐ and tri‐arylmethanes. We have established an efficient iron‐catalyzed Friedel–Crafts benzylation method at room temperature that uses benzyl TMS ethers as substrates, which are poorly reactive under common nucleophilic substitution conditions. The reaction seems to progress through iron‐catalyzed self‐condensation of the benzyl TMS ether to the corresponding dibenzylic ether. The use of excess arene relative to benzyl TMS ether produced mono‐benzylated arene (di‐ and tri‐arylmethane products), whereas the use of excess benzyl TMS ether versus arene provided bis‐benzylated arene (polyarylated products) in high yields and regioselectivities. In previous methods, the latter double Friedel–Crafts benzylations hardly proceed.
Self‐Assembly of Three‐Dimensional Supramolecular Polymers through Cooperative Tetrathiafulvalene Radical Cation Dimerization
Authors: Tian Jia , Ding Yu‐Di , Zhou Tian‐You , Zhang Kang‐Da , Zhao Xin , Wang Hui , Zhang Dan‐Wei , Liu Yi , Li Zhan‐Ting 
Published: December 2013

AbstractThe self‐assembly of a new type of three‐dimensional (3D) supramolecular polymers from tetrahedral monomers in both organic and aqueous media is described. We have designed and synthesized two tetraphenylmethane derivatives T1 and T2, both of which bear four tetrathiafulvalene (TTF) units. When the TTF units were oxidized to the radical cation TTF.+, their pre‐organized tetrahedral arrangement remarkably enhanced their intermolecular dimerization, leading to the formation of new 3D spherical supramolecular polymers. The structure of the supramolecular polymers has been inferred on the basis of UV/Vis absorption, electron paramagnetic resonance, cyclic voltammetry, and dynamic light scattering (DLS) analysis, as well as by comparing these properties with those of the self‐assembled structures of mono‐, di‐, and tritopic control compounds. DLS experiments revealed that the spherical supramolecular polymers had hydrodynamic diameters of 68 nm for T1 (75 μM) in acetonitrile and 105 nm for T2 (75 μM) in water/acetonitrile (1:1). The 3D spherical structures of the supramolecular polymers formed in different solvents were also supported by SEM and AFM experiments.
Base‐Catalyzed Tandem Michael/Dehydro‐Diels–Alder Reaction of α,α‐Dicyanoolefins with Electron‐Deficient 1,3‐Conjugated Enynes: A Facile Entry to Angularly Fused Polycycles
Authors: Zhang Mingrui , Zhang Junliang 
Published: December 2013

AbstractAngularly fused carbocyclic frameworks and their heteroatom‐substituted analogues exist in many natural products that display a broad and interesting range of biological activities. Preparation of polycyclic products by cycloaddition reactions have been the long‐standing hot topic in the synthetic community. Dehydro‐Diels–Alder (DDA) reactions are one class of dehydropericyclic reactions that are derived conceptually by systematic removal of hydrogen atom pairs. A base‐promoted tandem Michael addition and DDA reaction of α,α‐dicyanoolefins with electron‐deficient 1,3‐conjugated enynes was realized in which a DDA reaction takes place between the arylalkynes and electron‐deficient tetrasubstituted olefin. The control experiments support the stepwise anionic reaction pathway rather than the concerted reaction pathway.
Blending Gelators to Tune Gel Structure and Probe Anion‐Induced Disassembly
Authors: Foster Jonathan A. , Edkins Robert M. , Cameron Gary J. , Colgin Neil , Fucke Katharina , Ridgeway Sam , Crawford Andrew G. , Marder Todd B. , Beeby Andrew , Cobb Steven L. , Steed Jonathan W. 
Published: December 2013

AbstractBlending different low molecular weight gelators (LMWGs) provides a convenient route to tune the properties of a gel and incorporate functionalities such as fluorescence. Blending a series of gelators having a common bis‐urea motif, and functionalised with different amino acid‐derived end‐groups and differing length alkylene spacers is reported. Fluorescent gelators incorporating 1‐ and 2‐pyrenyl moieties provide a probe of the mixed systems alongside structural and morphological data from powder diffraction and electron microscopy. Characterisation of the individual gelators reveals that although the expected α‐urea tape motif is preserved, there is considerable variation in the gelation properties, molecular packing, fibre morphology and rheological behaviour. Mixing of the gelators revealed examples in which: 1) the gels formed separate, orthogonal networks maintaining their own packing and morphology, 2) the gels blended together into a single network, either adopting the packing and morphology of one gelator, or 3) a new structure not seen for either of the gelators individually was created. The strong binding of the urea functionalities to anions was exploited as a means of breaking down the gel structure, and the use of fluorescent gel blends provides new insights into anion‐mediated gel dissolution.
2,2,2‐Trifluoroacetophenone as an Organocatalyst for the Oxidation of Tertiary Amines and Azines to N‐Oxides
Authors: Limnios Dimitris , Kokotos Christoforos G. 
Published: December 2013

AbstractA cheap, mild and environmentally friendly oxidation of tertiary amines and azines to the corresponding N‐oxides is reported by using polyfluoroalkyl ketones as efficient organocatalysts. 2,2,2‐Trifluoroacetophenone was identified as the optimum catalyst for the oxidation of aliphatic tertiary amines and azines. This oxidation is chemoselective and proceeds in high‐to‐quantitative yields utilizing 10 mol % of the catalyst and H2O2 as the oxidant.
ChemInform Abstract: First‐Principles Calculations of the Structural, Electronic, Optical and Elastic Properties of the New Phosphors, Na2ZrF6 and K2ZrF6.
Authors: Brik M. G. , Srivastava A. M. 
Published: December 2013

AbstractNa2ZrF6 and K2ZrF6 are characterized using the plane‐wave based first‐principles calculations.
ChemInform Abstract: Clathrate Ba8Au16P30: The “Gold Standard” for Lattice Thermal Conductivity.
Authors: Fulmer James , Lebedev Oleg I. , Roddatis Vladimir V. , Kaseman Derrick C. , Sen Sabyasachi , Dolyniuk Juli‐Anna , Lee Kathleen , Olenev Andrei V. , Kovnier Kirill 
Published: December 2013

AbstractThe title compound is prepared by solid state reaction of stoichiometric amounts of the elements (glassy carbon crucible in evacuated silica ampules, 1073 K, 12 d).
ChemInform Abstract: Violet Blue Long‐Lasting Phosphorescence Properties of Mg‐Doped BaZrO3 and Its Ability to Assist Photocatalysis.
Authors: Ma Xinlong , Zhang Jiachi , Li Huihui , Duan Beicheng , Guo Linna , Que Meidan , Wang Yuhua 
Published: December 2013

AbstractMg‐doped BaZrO3 is prepared by solid state reaction of BaCO3, ZrO2, and (MgCO3)4Mg(OH)2 (alumina crucible, 1300—1400 °C, 6 h).
ChemInform Abstract: Pseudobinary Fe4Ti3S8 Compound with a NiAs‐Type Structure: Effect of Ti for Fe Substitution.
Authors: Ibrahim P. N. G. , Selezneva N. V. , Gubkin A. F. , Baranov N. V. 
Published: December 2013

AbstractThe title compound is prepared by solid state reaction of TiI4, S, and highly pure Fe (evacuated quartz tube; 1.
ChemInform Abstract: Synthesis Process Investigation and Electrochemical Performance Characterization of SrLi2Ti6O14 by ex situ XRD.
Authors: Liu Jianhong , Li Yanan , Wang Xingqin , Gao Yun , Wu Ningning , Wu Borong 
Published: December 2013

AbstractThe solid state synthesis of the title compound from SrCO3, Li2CO3, and TiO2 (air, 500—1000 °C, 8 h) is monitored by TG‐DTA and XRD.
ChemInform Abstract: Polyoxometalate {W18O56XO6} Clusters with Embedded Redox‐Active Main‐Group Templates as Localized Inner‐Cluster Radicals.
Authors: Vila‐Nadal Laia , Peuntinger Katrin , Busche Christoph , Yan Jun , Lueders Daniela , Long De‐Liang , Poblet Josep M. , Guldi Dirk M. , Cronin Leroy 
Published: December 2013

AbstractDawson‐like clusters {W18O56XO6} (X: I, Te) with localized redox active inner‐cluster templates are characterized by cyclic voltammetry, UV and EPR spectroscopy, and DFT calculations.
ChemInform Abstract: Asymmetric anti‐Aldol Addition of Achiral Ketones via Chiral N‐Amino Cyclic Carbamate Hydrazones.
Authors: Knight John D. , Coltart Don M. 
Published: December 2013

AbstractThe diastereoselective aldol addition reaction of chiral hydrazones (I) and aldehydes (II) followed by O‐benzylation of the resulting aldol adduct and subsequent removal of the chiral auxiliary affords desired O‐benzylated β‐hydroxyketones (V) in high overall yields.
ChemInform Abstract: Merging Organocatalysis with Transition Metal Catalysis and Using O2 as the Oxidant for Enantioselective C—H Functionalization of Aldehydes.
Authors: Zhao Yong‐Long , Wang Yao , Hu Xiu‐Qin , Xu Peng‐Fei 
Published: December 2013

AbstractThe enantioselective β‐functionalization of aldehydes (I) is successfully achieved by a Saegusa oxidation—Michael addition cascade reaction using palladium(II) acetate and the proline PRL as a catalytic system.
ChemInform Abstract: Hydrocyanative Cyclization and Three‐Component Cross‐Coupling Reaction Between Allenes and Alkynes under Nickel Catalysis.
Authors: Arai Shigeru , Amako Yuka , Yang Xiaofei , Nishida Atsushi 
Published: December 2013

AbstractIn the presence of acetone cyanohydrin and Ni(P(O‐Ph)3)4 1,7‐allenynes like (I) undergo new hydrocyanative cyclization to afford pyrrolidines of type (III).
ChemInform Abstract: Formation of Quaternary Centers by Copper‐Catalyzed Asymmetric Conjugate Addition of Alkylzirconium Reagents.
Authors: Sidera Mireia , Roth Philippe M. C. , Maksymowicz Rebecca M. , Fletcher Stephen P. 
Published: December 2013

AbstractA new, practical, highly enantioselective, and widely applicable method to prepare cyclic ketones bearing a quaternary stereogenic center is reported.
ChemInform Abstract: Cross Metathesis of Several Methylenecyclopentane Derivatives.
Authors: Camps Pelayo , Gomez Tania , Buden M. Eugenia , Otermin Ane , Calvet Teresa , Font‐Bardia Merce 
Published: December 2013

AbstractThe cross metathesis (CM) of methylenecyclopentane derivatives using Hoveyda—Grubbs second generation catalyst is studied.
ChemInform Abstract: Encapsulation of an Olefin Metathesis Catalyst in the Nanocages of SBA‐1: Facile Preparation, High Encapsulation Efficiency, and High Activity.
Authors: Yang Hengquan , Ma Zhancheng , Zhou Ting , Zhang Wenjuan , Chao Jianbin , Qin Yong 
Published: December 2013

AbstractThe catalyst can be reused for at least seven times.
ChemInform Abstract: Carbenoid Insertions into Benzylic C—H Bonds with Heterogeneous Copper Catalysts.
Authors: Fraile Jose M. , Mayoral Jose A. , Munoz Ana , Santafe‐Valero Jorge 
Published: December 2013

AbstractCopper complexes with azabis(oxazoline) or bis(oxazoline) ligands, once supported on laponite clay by electrostatic interactions, are able to catalyze the insertion of carbenoids in benzylic C—H bonds.
ChemInform Abstract: Practical Selective Hydrogenation of α‐Fluorinated Esters with Bifunctional Pincer‐Type Ruthenium(II) Catalysts Leading to Fluorinated Alcohols of Fluoral Hemiacetals.
Authors: Otsuka Takashi , Ishii Akihiro , Dub Pavel A. , Ikariya Takao 
Published: December 2013

AbstractThe reaction proceeds selectively using racemic and chiral substrates.
ChemInform Abstract: Domino Catalysis: Palladium‐Catalyzed Carbonylation of Allylic Alcohols to β,γ‐Unsaturated Esters.
Authors: Liu Qiang , Wu Lipeng , Jiao Haijun , Fang Xianjie , Jackstell Ralf , Beller Matthias 
Published: December 2013

AbstractA new, efficient, and salt free method to prepare synthetically important β,γ‐unsaturated esters is reported.
ChemInform Abstract: Formal Substitution of Bromocyclopropanes with Nitrogen Nucleophiles.
Authors: Banning Joseph E. , Gentillon Jacob , Ryabchuk Pavel G. , Prosser Anthony R. , Rogers Andrew , Edwards Andrew , Holtzen Andrew , Babkov Ivan A. , Rubina Marina , Rubin Michael 
Published: December 2013

AbstractThe formation of cyclopropanes catalyzed by 18‐crown‐6 gives products with high diastereoselectivity.
ChemInform Abstract: Highly Efficient Catalytic Enantioselective Mannich Reaction of Malonates with N‐tert‐Butoxycarbonyl Imines by Using Yb(OTf)3/Pybox Catalyst at Room Temperature.
Authors: Karimi Babak , Jafari Ehsan , Enders Dieter 
Published: December 2013

AbstractA highly efficient Mannich reaction of Boc‐aldimines with benzyl malonate is described using Yb(OTf)3 and a chiral pybox ligand as catalysts.
ChemInform Abstract: A Ruthenium Catalyst with Simple Triphenylphosphane for the Enantioselective Hydrogenation of Aromatic Ketones.
Authors: Zhou Han , Huang Hanmin 
Published: December 2013

AbstractThe method represents the first example of using a practical Noyori‐type catalyst with a simply achiral monophosphane for highly enantioselective hydrogenation.
ChemInform Abstract: Synthesis of α,β‐Unsaturated α′‐Haloketones Through the Chemoselective Addition of Halomethyllithiums to Weinreb Amides.
Authors: Pace Vittorio , Castoldi Laura , Holzer Wolfgang 
Published: December 2013

AbstractA high‐yielding procedure is elaborated for the conversion of Weinreb amides to unsaturated haloketones [21 examples].
ChemInform Abstract: Synthesis of β‐Aryl Ketones by Heck Arylation of Allylic Alcohols Catalyzed by a MCM‐41‐Supported Bidentate Nitrogen Palladium Complex.
Authors: Huang Yixiang , Wang Pingping , Liu Jiaqin , Cai Mingzhong 
Published: December 2013

AbstractThe novel, practical and highly efficient catalyst system can be recovered by simple filtration and reused several times without any decrease in activity.
ChemInform Abstract: Selective Preparation of Isomeric Tetrahydroxypillar[5]arenes and Pillar[3]arene[2]quinones.
Authors: Pan Mingguang , Xue Min 
Published: December 2013

AbstractThe title compounds are selectively prepared through partial oxidation of 1,4‐dimethoxypillar[5]arene or 1,4‐dimethoxypillar[4]arene[1]quinone by (NH4)2Ce(NO3)6 and then reduction by Na2S2O4.
ChemInform Abstract: Iron‐Catalyzed Hydrogenation for the in situ Regeneration of an NAD(P)H Model: Biomimetic Reduction of α‐Keto‐/α‐Iminoesters.
Authors: Lu Liang‐Qiu , Li Yuehui , Junge Kathrin , Beller Matthias 
Published: December 2013

AbstractThis method uses dual iron catalysis for the title reaction.
ChemInform Abstract: Reductive Ullmann Coupling of Aryl Halides by Palladium Nanoparticles Supported on Cellulose, a Recoverable Heterogeneous Catalyst.
Authors: Rasouli Mohammad Ali , Ranjbar Parviz Rashidi 
Published: December 2013

AbstractPalladium nanoparticles supported on cellulose are shown to act as catalyst for the reductive Ullmann coupling of aryl halides.
ChemInform Abstract: Preparation of a Titania‐Supported Highly Dispersed Palladium Nano‐Catalyst and Its Application in Suzuki and Heck Coupling Reactions.
Authors: Karami Kazem , Shehni Mahlagha Bahrami , Rahimi Nasser 
Published: December 2013

AbstractThe TiO2‐adsorbed catalyst can be simply recovered and reused at least four times without a significant loss in activity.
ChemInform Abstract: Zinc Mediated Ring Size Tuned C=C Reduction and C—C Coupling of α,α′‐(E,E)‐Bis(benzylidene)cycloalkanones.
Authors: Kundu Arijit , Bhattacharyya Bhaswati , Dhara Kaliprasanna , Patra Amarendra 
Published: December 2013

AbstractZinc amalgam mediated reduction of the title bis(benzylidene)cycloalkanes (I) and (V) affords exocyclic olefinic bond reduced compounds and corresponding β,β‐coupled dimers with intact carbonyl function.
ChemInform Abstract: Palladium‐Catalyzed Desulfitative Hydroarylation of Alkynes with Sodium Sulfinates.
Authors: Liu Saiwen , Bai Yang , Cao Xiangxiang , Xiao Fuhong , Deng Guo‐Jun 
Published: December 2013

AbstractAn efficient procedure is elaborated for the hydroarylation of alkynes with sodium aryl sulfinates as aryl sources.
ChemInform Abstract: Nucleophilic Halogenations of Diazo Compounds, a Complementary Principle for the Synthesis of Halodiazo Compounds: Experimental and Theoretical Studies.
Authors: Schnaars Christian , Hennum Martin , Bonge‐Hansen Tore 
Published: December 2013

AbstractThree pathways for the nucleophilic halogenation of diazo compounds are presented using different halogen sources.
ChemInform Abstract: One‐Pot Synthesis of Cyclopropane Derivatives with a cis:trans Stereo‐Selectivity by Wittig Olefination‐Sulfur Ylide Cyclopropanation Sequence.
Authors: Huang Wenhua , Wang Lai‐Ling 
Published: December 2013

AbstractAn efficient synthesis of cyclopropane derivatives is developed using a tandem Wittig olefination/sulfur ylide cyclopropanation reaction sequence.
ChemInform Abstract: Amide Activation by TMSCl: Reduction of Amides to Amines by LiAlH4 under Mild Conditions.
Authors: Ravinder B. , Rajeswar Reddy S. , Panasa Reddy A. , Rakeshwar Bandichhor 
Published: December 2013

AbstractLiAlH4 in the presence of TmsCl as activating agent is found to be efficient to reduce even tertiary and secondary amides to the corresponding amines.
ChemInform Abstract: Synthesis of Amidoalkyl Naphthol via Ritter‐Type Reaction Catalyzed by Heteropolyanion‐Based Ionic Liquid.
Authors: Dong Fang , Chenning Jiang , Ting Zhu , Jinming Yang 
Published: December 2013

AbstractThe title compounds (IV) are obtained by a Ritter‐type one‐pot three‐component reaction of 2‐naphthol, aromatic aldehydes, and amides using a heteropolyanion‐based functionalized ionic liquid as catalyst.
ChemInform Abstract: Comparison of 1,4‐Distyrylfluorene and 1,4‐Distyrylbenzene Analogues: Synthesis, Structure, Electrochemistry and Photophysics.
Authors: Laughlin Brynna J. , Duniho Tyler L. , El Homsi Samantha J. , Levy Benjamin E. , Deligonul Nihal , Gaffen Joshua R. , Protasiewicz John D. , Tennyson Andrew G. , Smith Rhett C. 
Published: December 2013

AbstractA series of 1,4‐distyrylfluorene derivatives (III) is synthesized via a Wittig—Horner type condensation.
ChemInform Abstract: Reaction of tert‐Butyl Isocyanide with Alkyl Propiolates in the Presence of α‐Chloroketones.
Authors: Asghari Sakineh , Tayebi Zhila , Habibi Ahmad Khabbazi 
Published: December 2013

AbstractThis simple entry to the one‐pot synthesis of chlorinated γ‐iminolactone derivatives provides following advantages: i) simultaneous formation of several bonds in one step; ii) simple and easily available starting materials; iii) neutral conditions.