bluuebunny/crossref_metadata_2025_split huggingface dataset:
Consolidation by spark plasma sintering of polyimide and polyetheretherketone
Authors: Schwertz Maxime , Lemonnier Sébastien , Barraud Elodie , Carradò Adele , Vallat Marie‐France , Nardin Michel 
Published: April 2014

ABSTRACTThis article presents two high‐temperature thermoplastic powders which were sintered by spark plasma sintering in order to get homogeneous mechanical properties. Dense polyimide (PI) and polyetheretherketone (PEEK) specimens were obtained at temperatures as low as 320°C for PI and 200°C for PEEK, respectively. Relative densities higher than 99% were reached for both materials. In order to characterize their properties, in situ measurements with compression and hardness tests were carried out on sintered samples. This method allowed to obtain polymeric materials with improved mechanical properties. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014, 131, 40783.
Photodegradation of some low‐density polyethylene–montmorillonite nanocomposites containing an oligomeric compatibilizer
Authors: Al Abdulla Wael A. , Hill David J. T. , Whittaker Andrew K. 
Published: April 2014

ABSTRACTThe photo‐oxidation behavior at the exposed surfaces of maleated low‐density polyethylene [LDPE poly(ethylene‐co‐butylacrylate‐co‐maleic anhydride) (PEBAMA)] and montmorillonite (MMT) composites was studied using attenuated total reflection Fourier transform infrared spectroscopy, X‐ray diffraction (XRD), transmission electron microscopy (TEM), and mechanical testing. Two different MMT clays were used with the maleated polyethylene, an unmodified clay, MMT, and an organically modified montmorillonite (OMMT) clay which was significantly exfoliated in the composite. The morphologies of sample films were examined by XRD and TEM. The results were explained in terms of the effect of the compatibilizing agent PEBAMA on the clay dispersion. It was found that the OMMT particles were exfoliated in the polymer matrix in the presence of the PEBAMA, whereas the MMT clay particles were agglomerated in this matrix. Both mechanical and spectroscopic analyses showed that the rates of photo oxidative degradation of the LDPE‐PEBAMA–OMMT were higher than those for LDPE and LDPE‐PEBAMA–MMT. The acceleration of the photo‐oxidative degradation for LDPE‐PEBAMA–OMMT is attributed to the effects of the compatibilizer and the organic modifier in the composite. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014, 131, 40788.
Photoluminescence properties of hybrid SiO2‐coated CdTe/CdSe quantum dots
Authors: Liu Ning , Yang Ping 
Published: April 2014

ABSTRACTHybrid SiO2‐coated CdTe/CdSe quantum dots (QDs) were prepared using CdTe/CdSe QDs prepared by hydrothermal synthesis. A CdSe interlayer made CdTe/CdSe cores with unique type II heterostructures. The hybrid SiO2‐coated CdTe/CdSe QDs revealed excellent photoluminescence (PL) properties compared with hybrid SiO2‐coated CdTe QDs. Because of the existence of spatial separations of carriers in the type II CdTe/CdSe core/shell QDs, the hybrid QDs had a relatively extended PL lifetime and high stability in phosphate‐buffered saline buffer solutions. This is ascribed to the unique components and stable surface state of hybrid SiO2‐coated CdTe/CdSe QDs. During the stabilization test in phosphate‐buffered saline buffer solutions, both static and dynamic quenching occurred. The quenching mechanism of the hybrid QDs was not suited with the Stern–Volmer equation. However, the relative stable surface of CdTe/CdSe QDs resulted in lower degradation and relative high PL quantum yields compared with hybrid SiO2‐coated CdTe QDs. As a result, hybrid SiO2‐coated CdTe/CdSe QDs can be used in bioapplications. Copyright © 2013 John Wiley & Sons, Ltd.
Molecular dynamics simulations demonstrate the regulation of DNA‐DNA attraction by H4 histone tail acetylations and mutations
Authors: Korolev Nikolay , Yu Hang , Lyubartsev Alexander P. , Nordenskiöld Lars 
Published: April 2014

ABSTRACTThe positively charged N‐terminal histone tails play a crucial role in chromatin compaction and are important modulators of DNA transcription, recombination, and repair. The detailed mechanism of the interaction of histone tails with DNA remains elusive. To model the unspecific interaction of histone tails with DNA, all‐atom molecular dynamics (MD) simulations were carried out for systems of four DNA 22‐mers in the presence of 20 or 16 short fragments of the H4 histone tail (variations of the 16–23 a. a. KRHRKVLR sequence, as well as the unmodified fragment a. a.13–20, GGAKRHRK). This setup with high DNA concentration, explicit presence of DNA‐DNA contacts, presence of unstructured cationic peptides (histone tails) and K+ mimics the conditions of eukaryotic chromatin. A detailed account of the DNA interactions with the histone tail fragments, K+ and water is presented. Furthermore, DNA structure and dynamics and its interplay with the histone tail fragments binding are analysed. The charged side chains of the lysines and arginines play major roles in the tail‐mediated DNA‐DNA attraction by forming bridges and by coordinating to the phosphate groups and to the electronegative sites in the minor groove. Binding of all species to DNA is dynamic. The structure of the unmodified fully‐charged H4 16–23 a.a. fragment KRHRKVLR is dominated by a stretched conformation. The H4 tail a. a. fragment GGAKRHRK as well as the H4 Lys16 acetylated fragment are highly flexible. The present work allows capturing typical features of the histone tail‐counterion‐DNA structure, interaction and dynamics. © 2014 Wiley Periodicals, Inc. Biopolymers 101: 1051–1064, 2014.
Improvement in autologous human fat transplant survival with SVF plus VEGF–PLA nano‐sustained release microspheres
Authors: Li Liqun , Pan Shengsheng , Ni Binting , Lin Yuanshao 
Published: April 2014

AbstractEarly neovascularization is important for autologous fat transplant survival. SVF cells are ideal seed cells. Both vascular endothelial growth factor (VEGF) and SVF cells can promote neovascularization. However, the half‐life (about 50 min) of VEGF is too short to sustain an adequate local concentration. We have investigated whether VEGF–polylactic acid (PLA) nano‐sustained release microspheres plus SVF cells can improve neovascularization and survival of transplanted fat tissues. SVF cells were harvested and constructed VEGF–PLA nano‐sustained release microspheres in vitro. Human fat tissues was mixed with SVF cells plus VEGF–PLA, SVF cells alone or Dulbecco's modified Eagle's medium as the control. These three mixtures were injected into random sites in 18 nude mice. Two months later, the transplants were weighed and examined histologically; and capillaries were counted to quantify neovascularization. Hematoxylin–eosin (HE) and anti‐VEGF stains were applied to reveal cell infiltration. The mean wet weight of fat in the SVF plus VEGF–PLA, SVF alone, and control transplants were 0.18 ± 0.013 g, 0.16 ± 0.015 g, and 0.071 ± 0.12 g, respectively; the differences between groups were statistically significant. More vessels were present in the SVF plus VEGF–PLA transplants than in the other two types. Transplants mixed with SVF cells also had an acceptable density of capillaries. Histological analysis revealed that both the SVF plus VEGF–PLA and SVF alone transplants, but not the control transplants, were composed of adipose tissue, and had less fat necrosis and less fibrosis than control specimens. SVF plus VEGF–PLA transplants had significantly greater capillary density and VEGF expression than the other two transplant groups. Thus transplanted fat tissue survival and quality can be enhanced by the addition of VEGF–PLA nano‐sustained release microspheres plus SVF cells.
Stem cell and extracellular matrix‐related molecules increase following melatonin treatment in the skin of postmenopausal rats
Authors: Uslu Serap , Oktem Gulperi , Uysal Aysegul , Soner Burak Cem , Arbak Serap , Ince Umit 
Published: April 2014

AbstractThe menopause has a negative effect in the skin. Melatonin affects skin functions and structures through actions mediated by cell‐surface and putative‐nuclear receptors expressed in skin cell. We have therefore determined the effects of melatonin treatment on stem cell in the epidermis and extracellular matrix related molecules in the dermis the skin of postmenopausal rats. A total of 45 female rats were divided into 5 groups: control group, group A [ovariectomy (OVX)], group B (OVX +10 mg/kg/day melatonin), group C (OVX +30 mg/kg/day melatonin), group S (sham operated + 10 mg/kg/day melatonin). Ventral skin samples were excised at 12th week after ovariectomy. Hematoxylin‐eosin, periodic acid‐ methylamine silver, elastic van Gieson staining techniques were used to measure histomorphometrically the thickness of elastic fibers and basement membrane, depths of the epidermis, dermis, and subcutaneous fat layer. Immunohistochemical staining methods were used for fibroblast growth factor β (FGF β), collagen type I, fibronectin, β‐catenin, c‐kit, c‐Myc evaluation. Epidermal thickness, subcutaneous fat layer, and elastic fibers were significantly decreased in group C, and there was a significant increase after melatonin treatment. Although there was no difference in dermal thickness of group C, melatonin also significantly increased the dermal thickness. High FGF β, type I collagen, fibronectin, β‐catenin, c‐Myc immunoreactivity developed following melatonin in all groups. Thus melatonin treatment of postmenopausal rats was mostly due to the decrease of stem cell and extracellular matrix‐related molecules in the skin.
ChemInform Abstract: Storage of Visible Light for Long‐Lasting Phosphorescence in Chromium‐Doped Zinc Gallate.
Authors: Bessiere Aurelie , et al. et al. 
Published: April 2014

AbstractZnGa2O4:Cr3+ exhibits near‐infrared long‐lasting phosphorescence suitable for in vivo bioimaging, activated by virtually all wavelengths of the visible range.
ChemInform Abstract: Enhanced Luminescence by Monovalent Alkali Metal Ions in Sr2SiO4:Eu3+ Nanophosphor Prepared by Low Temperature Solution Combustion Method.
Authors: Nagabhushana H. , Sunitha D. V. , Sharma S. C. , Daruka Prasad B. , Nagabhushana B. M. , Chakradhar R. P. S. 
Published: April 2014

AbstractPorous and irregular shaped nanoparticles of Sr2SiO4:Eu3+ and Sr2SiO4:Eu3+:M+ (M: Na, K, Li) are prepared by low temperature combustion synthesis of an aqueous solution of metal nitrates and oxalyl dihydrazide as the fuel (muffle furnace, 500 °C, 5 min) followed by grinding and heating of the resulting powder (900 °C, 2 h).
ChemInform Abstract: In situ Synthesis of ZnMn2O4—ZnO—C and ZnMn2O4—C Nanohybrids as High Performance Lithium‐Ion Battery Anodes.
Authors: Li Guangda , Wang Yuyan , Yang Lishan , Ma Wanyong , Wang Meng 
Published: April 2014

AbstractZnMn2O4—ZnO—C and ZnMn2O4—C nanohybrids are synthesized from mixtures of ZnMnO3, acetylene black, and EtOH followed by calcination at 600 °C under an argon atmosphere for 5 h.
ChemInform Abstract: Phase Transformation Synthesis of Novel Ag2O/Ag2CO3 Heterostructures with High Visible Light Efficiency in Photocatalytic Degradation of Pollutants.
Authors: Yu Changlin , Li Gao , Kumar Santosh , Yang Kai , Jin Rongchao 
Published: April 2014

AbstractCore/shell‐like Ag2O/Ag2CO3 nanoheterostructures with tailored junctions are fabricated by a facile, low‐cost, and one‐step phase transformation method involving precipitation of Ag2O from aqueous solutions of Ag2CO3 with AgNO3 followed by calcination in air (220 °C, 10 min).
ChemInform Abstract: Halogen and Chalcogen Cation Pools Stabilized by DMSO. Versatile Reagents for Alkene Difunctionalization.
Authors: Ashikari Yosuke , Shimizu Akihiro , Nokami Toshiki , Yoshida Jun‐ichi 
Published: April 2014

AbstractBy modification of the procedure, also the corresponding alcohols are accessible in a diastereoselective one‐pot reaction [viz.
ChemInform Abstract: The Use of 2‐Chloro‐4H‐4‐oxo‐pyridol[1,2‐a]pyrimidine as a Building Block in the Synthesis of Some New Heterocyclic Compounds
Authors: Badawy Doria S. , Awad Noha M. , Abdel‐Galil Ebrahim 
Published: April 2014

Abstractsuch as pyridopyrimidodiazepine (IV), pyrazolopyridopyrimidine (V), tetrazolopaphthyridine (VI) et al.
ChemInform Abstract: Role of Vanadium and Pyridine in Heteropolycompounds for Selective Oxidation of Alcohols with Hydrogen Peroxide.
Authors: Palermo Valeria , Villabrille Paula I. , Vazquez Patricia G. , Caceres Carmen V. , Tundo Pietro , Romanelli Gustavo P. 
Published: April 2014

AbstractA variety of vanadium‐ and pyridine‐modified heteropolyacids are synthesized and applied as catalysts for the selective oxidation of alcohols by aqueous H2O2.
ChemInform Abstract: Organocatalysis Approach to Trifluoromethylation with Fluoroform.
Authors: Zhang Yuan , Fujiu Motohiro , Serizawa Hiroki , Mikami Koichi 
Published: April 2014

AbstractA new method for the trifluoromethylation of aldehydes, ketones, carboxylic chlorides, and carboxylic esters in the presence of PTBU is described.
ChemInform Abstract: Trifluoromethide as a Strong Base: [CF3‐] Mediates Dichloromethylation of Nitrones by Proton Abstraction from the Solvent.
Authors: Behr Jean‐Bernard , Chavaria Dani , Plantier‐Royon Richard 
Published: April 2014

AbstractThe dichloromethylation and cyanomethylation of nitrones in the presence of the strong base [CF3‐] is described.
ChemInform Abstract: Asymmetric Sharpless Dihydroxylation Reaction of Chiral Bishomoallylic Alcohols: Application to the Synthesis of the C1—C10—C5 Fragment of FR225654.
Authors: Mohammad Shabbair , Dhambri Sabrina , Gori Didier , Vaxelaire Carine , Sorin Geoffroy , Ardisson Janick , Lannou Marie‐Isabelle 
Published: April 2014

AbstractA series of different ligands is screened for the asymmetric dihydroxylation of bishomoallylic alcohols to produce 1,2,5‐pentanetriol derivatives.
ChemInform Abstract: N‐Heterocyclic Carbene‐Catalyzed Cyclotetramerization of Acrylates.
Authors: Matsuoka Shin‐ichi , Namera Shoko , Washio Atsushi , Takagi Koji , Suzuki Masato 
Published: April 2014

AbstractIt is proposed that the unprecedented cyclotetramerization of acrylates proceeds via a new umpolung/cyclization sequence to provide cyclopentenones in low to moderate yields.
ChemInform Abstract: Asymmetric NHC‐Catalyzed Redox α‐Amination of α‐Aroyloxyaldehydes.
Authors: Taylor James E. , Daniels David S. B. , Smith Andrew D. 
Published: April 2014

AbstractThe NHC‐catalyzed reaction of aldehydes (I) with N‐aryl‐N‐aroyldiazenes gives α‐hydrazino esters with high enantioselectivities.
ChemInform Abstract: Development of a Novel Multifunctional N,P Ligand for Highly Enantioselective Palladium‐Catalyzed Asymmetric Allylic Etherification of Alcohols and Silanols.
Authors: Ye Fei , Zheng Zhan‐Jiang , Li Li , Yang Ke‐Fang , Xia Chun‐Gu , Xu Li‐Wen 
Published: April 2014

AbstractThe synthesis of the title air stable multidentate chiral phosphine ligand by a simple protocol and the application of the ligand for the asymmetric Pd‐catalyzed allylic esterification of alcohols and silanols is presented.
ChemInform Abstract: Nucleophilic Aryloxydefluorination of Pentafluorobenzene Without Noble Metal Catalysis.
Authors: Adonin Nicolay Yu. , Bardin Vadim V. 
Published: April 2014

AbstractPentafluorobenzene reacts with phenols in the presence of K2CO3 to give diaryl ethers (III) in excellent yields.
ChemInform Abstract: High Diastereoselectivity Induced by a Fluorous Alkyl Group in the Asymmetric Michael Reaction of Nitroalkenes Catalyzed by a Prolinol Methyl Ether.
Authors: Funabiki Kazumasa , Ohta Masaya , Sakaida Yuta , Oida Kiyofumi , Kubota Yasuhiro , Matsui Masaki 
Published: April 2014

AbstractReuse of the catalyst in a second cycle requires a much longer reaction time (134 h) for a satisfactory result.
ChemInform Abstract: Potassium Isopropoxide: For Sulfination It is the Only Base You Need!
Authors: Sayah Mahmoud , Organ Michael G. 
Published: April 2014

AbstractPotassium isopropoxide, either in form of iPrOK or as mixed base system (tBuOK/iPrOLi), is identified as the key ingredient for Pd‐catalyzed sulfination.
ChemInform Abstract: Synthesis of 2‐Alkynyl‐, 4‐Alkynyl‐, and 2,7‐Dialkynyl‐1,8‐bis(dimethylamino)naphthalenes and the Unexpected Influence of ortho‐Alkynyl Groups on Their Basicity.
Authors: Filatova Ekaterina A. , Pozharskii Alexander F. , Gulevskaya Anna V. , Vistorobskii Nikolay V. , Ozeryanskii Valery A. 
Published: April 2014

Abstract2‐Alkynyl derivatives (III) and (IV) of proton sponge are readily prepared starting from iodide (I).
ChemInform Abstract: N‐Trifluoromethylthiophthalimide: A Stable Electrophilic SCF3‐Reagent and Its Application in the Catalytic Asymmetric Trifluoromethylsulfenylation.
Authors: Bootwicha Teerawut , Liu Xiangqian , Pluta Roman , Atodiresei Iuliana , Rueping Magnus 
Published: April 2014

AbstractA highly enantioselective method for the preparation of quaternary carbon atoms substituted with a SCF3 group by using the moisture and air‐stable N‐trifluoromethylthiophthalimide as SCF3‐source is developed.
ChemInform Abstract: Metal‐Free Cascade Radical Cyclization of 1,6‐Enynes with Aldehydes.
Authors: Luo Jian‐Yi , Hua Hui‐Liang , Chen Zi‐Sheng , Zhou Zhao‐Zhao , Yang Yan‐Fang , Zhou Ping‐Xin , He Yu‐Tao , Liu Xue‐Yuan , Liang Yong‐Min 
Published: April 2014

AbstractOne new C(sp2)—C(sp2) and two C(sp2)—C(sp3) bonds are formed simultaneously in one pot to afford a wide range of tricyclic fluorene derivatives in good yields.
ChemInform Abstract: Efficient Synthesis of Novel Spiro‐Furo‐Pyrido‐Pyrimidine‐Indolines by Manganese Ferrite Nanoparticles as a Highly Active Magnetically Reusable Nanocatalyst in Water.
Authors: Naeimi Hossein , Rashid Zahra , Zarnani Amir Hassan , Ghahremanzadeh Ramin 
Published: April 2014

AbstractThe manganese ferrite nanoparticles can be easily separated using an external magnet and retain their catalytic activity for at least five repeated uses.
ChemInform Abstract: Vaulted Biaryls in Catalysis: A Structure—Activity Relationship Guided Tour of the Immanent Domain of the VANOL Ligand.
Authors: Guan Yong , Ding Zhensheng , Wulff William D. 
Published: April 2014

AbstractAn examination of different substituted chiral VANOL ligands for the asymmetric synthesis of aziridines from dinitro acetic esters and imines is described.
ChemInform Abstract: A Novel Intermolecular Synthesis of γ‐Lactones via Visible‐Light Photoredox Catalysis.
Authors: Wei Xiao‐Jing , Yang Deng‐Tao , Wang Lin , Song Tao , Wu Li‐Zhu , Liu Qiang 
Published: April 2014

AbstractHydroxyalkylation of aromatic alkenes and following transesterification allows the direct γ‐lactone formation via a light promoted photoredox reaction in the presence of an Ir‐catalyst.
ChemInform Abstract: Palladium(II) Catalyzed C(sp3)—H Oxidation of Dimethyl Carbamoyl Tetrahydrocarbazoles.
Authors: Nakano Yuji , Lupton David W. 
Published: April 2014

AbstractThe reaction is broadly applicable to tetrahydrocarbazole derivatives, but unsuitable for alternate ring sizes such as cyclohepta‐ or cyclopentaindole analogues or non annulated compounds such as ethyl indole derivatives.
ChemInform Abstract: 1,3‐Dipolar Cycloaddition Reactions: Synthesis of 5‐Benzyl‐1‐(2′,4′‐dibromophenyl)‐3‐(4′′‐substituted phenyl)‐3a,4,6,6a‐tetrahydro‐1H,5H‐pyrrolo[3,4‐c]pyrazole‐4,6‐dione Derivatives.
Authors: Kaur Manpreet , Singh Baldev , Singh Baljit 
Published: April 2014

Abstract1,3‐Dipolar cycloaddition of nitrilimines, generated in situ from hydrazonoyl bromides (I), with N‐benzylmaleimide provides stereoselectively the cis‐fused pyrrolopyrazole derivatives (III) (9 examples) in good yield.
ChemInform Abstract: Synthesis and Initial Biological Evaluation of Substituted 1‐Phenylamino‐2‐thio‐4,5‐dimethyl‐1H‐imidazole Derivatives.
Authors: Yurttas Leyla , Duran Murat , Demirayak Seref , Gencer Huelya Karaca , Tunali Yagmur 
Published: April 2014

AbstractA variety of new imidazole derivatives (VI) (40 examples) are synthesized and evaluated for their antibacterial, antifungal and anticancer activities.
ChemInform Abstract: A New Synthesis of Chiral Oxazolidinones from the Amino Acid L‐Serine.
Authors: Nogueira Thais C. M. , Pinheiro Alessandra C. , Kaiser Carlos R. , Wardell James L. , Wardell Solange M. S. V. , de Souza Marcus V. N. 
Published: April 2014

AbstractThe synthesis assumes N‐Cbz protection of L‐serine and is preceded by N‐methylation of the hydrazide.
ChemInform Abstract: Synthesis of 3,5‐Diarylisoxazoles under Solvent‐Free Conditions Using Iodobenzene Diacetate.
Authors: Sekhar Kondapalli Venkata Gowri C. , Sasank Thripuraribhatla V. N. V. T. , Nagesh Hunsur Nagendra , Suresh Narva , Naidu Kalaga Mahalakshmi , Suresh Amaroju 
Published: April 2014

AbstractA simple and solvent‐free reaction of chalcone oximes with iodobenzene diacetate to synthesize 3,5‐diarylisoxazoles (II) (17 examples) in good yields is shown.
ChemInform Abstract: Synthesis and Antiproliferative Activity of Some New Fluorinated Schiff Bases Derived from 1,2,4‐Triazoles.
Authors: Kumar Basavapatna N. Prasanna , Mohana Kikkeri N. , Mallesha Lingappa 
Published: April 2014

Abstract10 Title compounds of type (VI) are prepared and evaluated for their antiproliferative effects.
ChemInform Abstract: Synthesis of 1H‐1,2,3‐Triazoles—Rufinamide Analogues by 1,3‐Dipolar Cycloaddition and Electrocyclization Reactions of Trifluoroacetyl Enolethers under Thermal Solventless Conditions.
Authors: Bonacorso Helio G. , Moraes Maiara C. , Wiethan Carson W. , Luz Fabio M. , Meyer Alexandre R. , Zanatta Nilo , Martins Marcos A. P. 
Published: April 2014

AbstractRufinamide analogues of type (III)/(IV) are prepared by 1,3‐dipolar cycloaddition and/or electrocyclization reactions of trifluoroalkenones of type (I) with 2,6‐difluorobenzyl azide (II).
ChemInform Abstract: Synthesis and Evaluation of Novel 4‐Nitropyrrole‐based 1,3,4‐Oxadiazole Derivatives as Antimicrobial and Antitubercular Agents.
Authors: Rane Rajesh A. , Bangalore Pavankumar , Borhade Sheetal D. , Khandare Preeti K. 
Published: April 2014

AbstractA variety of novel 4‐nitropyrrole‐based 1,3,4‐oxadiazoles (III) (42 examples) are synthesized and evaluated for their antibacterial, antifungal, and antitubercular activities.
ChemInform Abstract: Synthesis and Characterization of Some Heteroaromatic Derivatives of 3‐But‐2‐enoyl‐chromen‐2‐one and Their Potential as Antiinflammatory Agents.
Authors: Dixit Priyanka , Tripathi Avinash C. , Saraf Shailendra K. 
Published: April 2014

AbstractA variety of novel chromen‐2‐one derivatives containing pyrazole, isoxazole, oxazine and thiazine moieties are synthesized starting from chalcone (V).
ChemInform Abstract: Synthesis, Antibacterial, and Antiviral Evaluation of New Heterocycles Containing the Pyridine Moiety.
Authors: Salem Marwa S. , Sakr Sameh I. , El‐Senousy Waled M. , Madkour Hassan M. F. 
Published: April 2014

AbstractA variety of heterocycles containing the pyridine moiety is prepared starting from (IV) and (IX).
ChemInform Abstract: Synthesis of a Naphtho‐pyrido‐Annulated Iodonium Salt and Pd‐Catalyzed Transformation to 7H‐Naphtho[1,8‐bc][1,5]naphthyridine.
Authors: Letessier Julien , Geffe Mario , Schollmeyer Dieter , Detert Heiner 
Published: April 2014

AbstractThe molecular structure of the compound (VI) is confirmed by X‐ray analysis.
ChemInform Abstract: Organocatalytic Oxidative Enamine Catalysis and 1,5‐Hydride Transfer/Cyclization: Synthesis of Tetrahydroquinoline Derivatives.
Authors: Kim Mi Hyun , Kim Dae Young 
Published: April 2014

AbstractSynthetically useful fused tetrahydroquinoline derivatives are obtained in good yield and diastereoselectivity via a hitherto not reported organocatalytic oxidative enamine catalysis and hydride transfer/ring closure reaction cascade.
ChemInform Abstract: Four‐Component Assembly of Natural‐Product‐Like Ring‐Fused Isoquinuclidines.
Authors: Sellstedt Magnus , Dang Hung The , Prasad G. Krishna , Sauer Uwe , Almqvist Fredrik 
Published: April 2014

AbstractCoupling of 2‐pyridones with aldehydes, amines, and activated alkenes is found to allow access to pharmacologically interesting ring‐fused isoquinuclidines.