bluuebunny/crossref_metadata_2025_split huggingface dataset:
Gravity waves simulated by high‐resolution Whole Atmosphere Community Climate Model
Authors: Liu H.‐L. , McInerney J. M. , Santos S. , Lauritzen P. H. , Taylor M. A. , Pedatella N. M. 
Published: December 2014

AbstractFor the first time a mesoscale‐resolving whole atmosphere general circulation model has been developed, using the National Center for Atmospheric Research Whole Atmosphere Community Climate Model with ∼0.25° horizontal resolution and 0.1 scale height vertical resolution above the middle stratosphere (higher resolution below). This is made possible by the high accuracy and high scalability of the spectral element dynamical core from the High‐Order Method Modeling Environment. For the simulated January–February period, the latitude‐height structure and the magnitudes of the temperature variance compare well with those deduced from the Sounding of the Atmosphere using Broadband Emission Radiometry (SABER) observations. The simulation reveals the increasing dominance of gravity waves (GWs) at higher altitudes through both the height dependence of the kinetic energy spectra, which display a steeper slope (∼−3) in the stratosphere and an increasingly shallower slope above, and the increasing spatial extent of GWs (including a planetary‐scale extent of a concentric GW excited by a tropical cyclone) at higher altitudes. GW impacts on the large‐scale flow are evaluated in terms of zonal mean zonal wind and tides: with no GW drag parameterized in the simulations, forcing by resolved GWs does reverse the summer mesospheric wind, albeit at an altitude higher than climatology, and only slows down the winter mesospheric wind without closing it. The hemispheric structures and magnitudes of diurnal and semidiurnal migrating tides compare favorably with observations.
Fluid substitution effects on seismic anisotropy
Authors: Huang Long , Stewart Robert R. , Sil Samik , Dyaur Nikolay 
Published: December 2014

AbstractWe derive equations for HTI and orthorhombic symmetries to analyze fluid substitution effects in porous fractured media. The derivations are based on the anisotropic Gassmann equation and linear slip theory. We assess the influence of fluid substitution (gas, brine, and oil) on elastic moduli, velocities, anisotropy, and azimuthal amplitude variations. We find that in the direction normal to fractures, P‐wave moduli increase as much as 56% and P‐wave velocity increases up to 19% for gas‐to‐brine substitution. For the direction parallel to fractures, P‐wave velocity remains almost constant when porosity is low (5%) but can increase up to 4% if porosity is high (25%). Since P‐waves in two different directions have different sensitivities to fluids and fractures, the Thomsen's parameters (defined for HTI and orthorhombic symmetries), ϵ and δ, are sensitive to fluid types and fractures. We also found that δ is sensitive to porosity for liquid saturation but insensitive to porosity for the case of gas saturation. Gassmann assumes (and as has been observed) that shear modulus does not depend on fluids. And we observe no changes in shear‐wave splitting (γ) for different fluids. The azimuthal amplitude variation is dependent on fluid types, fractures, and porosity. We observe up to 12% increase in azimuthal amplitude variation for low porosity gas sands after brine saturation and 6% decrease for high porosity gas sands. We find that the percentage changes in gas‐to‐oil substitution are about half that of the gas‐to‐brine case. The equations we have derived provide a useful tool to quantitatively evaluate the effects of fluid substitution on seismic anisotropy.
Dinitrogen Activation Upon Reduction of a Triiron(II) Complex
Authors: Lee Yousoon , Sloane Forrest T. , Blondin Geneviève , Abboud Khalil A. , García‐Serres Ricardo , Murray Leslie J. 
Published: December 2014

AbstractReaction of a trinuclear iron(II) complex, Fe3Br3L (1), with KC8 under N2 leads to dinitrogen activation products (2) from which Fe3(NH)3L (2‐1; L is a cyclophane bridged by three β‐diketiminate arms) was characterized by X‐ray crystallography. 1H NMR spectra of the protonolysis product of 2 synthesized under 14N2 and 15N2 confirm atmospheric N2 reduction, and ammonia is detected by the indophenol assay (yield ∼30 %). IR and Mössbauer spectroscopy, and elemental analysis on 2 and 2‐1 as well as the tri(amido)triiron(II) 3 and tri(methoxo)triiron 4 congeners support our assignment of the reduction product as containing protonated N‐atom bridges.
Preparation of polyacrylamide grafted collagen extracted from leather wastes and their application in kaolin flocculation
Authors: Li Chongyi , Xue Feng , Ding Enyong 
Published: December 2014

ABSTRACTThis is probably the first report on the synthesis of a series of novel collagen‐based flocculants (CP11, CP12, and CP13) by grafting polyacrylamide (PAM) chains onto the collagen backbone, which was directly extracted from leather shavings via alkali hydrolysis. The results from FTIR, XRD, 1H NMR, and TGA well supported that PAM chains had been successfully grafted onto collagen backbone. In addition, the micrographs of SEM revealed that the PAM grafted collagen possessed much more porous and looser surface structures in comparison with virgin collagen. Zeta potential measurement showed that the introduction of branched PAM chains helped to improve the positively charge density. Furthermore, CP12 performed the best in the kaolin flocculation with the highest flocculation rate about 24%·min−1 and could induce the generation of much larger and denser floccs for the fast settling of kaolin particles. The corresponding flocculation mechanism was also presented by analyzing the collected flocs. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 41556.
In situ polymerization of bio‐based thermosetting polyurethane/graphene oxide nanocomposites
Authors: Zhang Jing , Zhang Chaoqun , Madbouly Samy A. 
Published: December 2014

ABSTRACTNovel bio‐based polyurethane/graphene oxide (GO) nanocomposites have been successfully synthesized from biorenewable epoxidized soybean‐castor oil fatty acid‐based polyols with considerable improvement in mechanical and thermal properties. The GO was synthesized via a modified pressurized oxidation method, and was investigated using Raman spectra, AFM and XPS, respectively. The toughening mechanism of GO in the bio‐based polyurethane matrix was explored. The elongation at break and toughness of polyurethane were increased by 1.3 and 0.8 times with incorporation of 0.4 wt % GO, respectively. However, insignificant changes in both mechanical strength and modulus were observed by adding GO. The results from thermal analysis indicated that the GO acts as new secondary soft segments in the polyurethane which lead to a considerable decrease in the glass transition temperature and crosslink density. The SEM morphology of the fracture surface after tensile testing showed a considerable aggregation of graphene oxide at concentrations above 0.4 wt %. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 41751.
Poly‐2‐[(4‐methylbenzylidene)amino]phenol: Investigation of thermal degradation and antimicrobial properties
Authors: Yılmaz Baran Nuray , Demir Hacı Ökkeş , Kostekçi Sedat , Sacak Mehmet 
Published: December 2014

ABSTRACTA new polyphenol (poly‐2‐[(4‐methylbenzylidene)amino]phenol) (P(2‐MBAP)) containing an azomethine group was synthesized by oxidative polycondensation reaction of 2‐[(4‐methylbenzylidene)amino]phenol (2‐MBAP) with NaOCl, H2O2, and O2 oxidants in an aqueous alkaline medium. The structures of 2‐MBAP and P(2‐MBAP) were characterized by UV‐vis, FT‐IR, and 1H NMR spectra. While the monomer decomposed completely up to 350°C and 57.2% of the polymer decomposed up to 1000°C. The thermal degradation of P(2‐MBAP) was also supported by the Thermo‐IR spectra recorded in the temperature range of 25–800°C. Electrical conductivity of the polymer was observed to increase 108 fold after doping with I2. Antimicrobial activities of the P(2‐MBAP) and 2‐MBAP against Sarcina lutea, Enterobacter aerogenes, Escherichia coli, Enterococcus feacalis, Klebsiella pneumoniae, Bacillus subtilis, Candida albicans, and Saccharomyces cerevisiae were also investigated. The number average molecular weight (Mn), weight average molecular weight (Mw) and polydispersity index (PDI) of the polymers were determined by gel permeation chromatography (GPC). © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 41758.
Site‐Directed and Global Incorporation of Orthogonal and Isostructural Noncanonical Amino Acids into the Ribosomal Lasso Peptide Capistruin
Authors: Al Toma Rashed S. , Kuthning Anja , Exner Matthias P. , Denisiuk Alexander , Ziegler Juliane , Budisa Nediljko , Süssmuth Roderich D. 
Published: December 2014

AbstractExpansion of the structural diversity of peptide antibiotics was performed through two different methods. Supplementation‐based incorporation (SPI) and stop‐codon suppression (SCS) approaches were used for co‐translational incorporation of isostructural and orthogonal noncanonical amino acids (ncAAs) into the lasso peptide capistruin. Two ncAAs were employed for the SPI method and five for the SCS method; each of them probing the incorporation of ncAAs in strategic positions of the molecule. Evaluation of the assembly by HR‐ESI‐MS proved more successful for the SCS method. Bio‐orthogonal chemistry was used for post‐biosynthetic modification of capistruin congener Cap_Alk10 containing the ncAA Alk (Nε‐Alloc‐L‐lysine) instead of Ala. A second‐generation Hoveyda–Grubbs catalyst was used for an in vitro metathesis reaction with Cap_Alk10 and an allyl alcohol, which offers options for post‐biosynthetic modifications. The use of synthetic biology allows for the in vivo production of new peptide‐based antibiotics from an expanded amino acid repertoire.
Synthesis and Characterization of 5‐Cyanotetrazolide‐Based Ionic Liquids
Authors: Bergholz Timm , Oelkers Benjamin , Huber Benedikt , Roling Bernhard , Sundermeyer Jörg 
Published: December 2014

AbstractNew salts based on imidazolium, pyrrolidinium, phosphonium, guanidinium, and ammonium cations together with the 5‐cyanotetrazolide anion [C2N5]− are reported. Depending on the nature of cation–anion interactions, characterized by XRD, the ionic liquids (ILs) have a low viscosity and are liquid at room temperature or have higher melting temperatures. Thermogravimetric analysis, cyclic voltammetry, viscosimetry, and impedance spectroscopy display a thermal stability up to 230 °C, an electrochemical window of 4.5 V, a viscosity of 25 mPa s at 20 °C, and an ionic conductivity of 5.4 mS cm−1 at 20 °C for the IL 1‐butyl‐1‐methylpyrrolidinium 5‐cyanotetrazolide [BMPyr][C2N5]. On the basis of these results, the synthesized compounds are promising electrolytes for lithium‐ion batteries.
Synthesis, Culture Medium Stability, and In Vitro and In Vivo Zebrafish Embryo Toxicity of Metal–Organic Framework Nanoparticles
Authors: Ruyra Àngels , Yazdi Amirali , Espín Jordi , Carné‐Sánchez Arnau , Roher Nerea , Lorenzo Julia , Imaz Inhar , Maspoch Daniel 
Published: December 2014

AbstractMetal–organic frameworks (MOFs) are among the most attractive porous materials available today. They have garnered much attention for their potential utility in many different areas such as gas storage, separation, catalysis, and biomedicine. However, very little is known about the possible health or environmental risks of these materials. Here, the results of toxicity studies on sixteen representative uncoated MOF nanoparticles (nanoMOFs), which were assessed for cytotoxicity to HepG2 and MCF7 cells in vitro, and for toxicity to zebrafish embryos in vivo, are reported. Interestingly, there is a strong correlation between their in vitro toxicity and their in vivo toxicity. NanoMOFs were ranked according to their respective in vivo toxicity (in terms of the amount and severity of phenotypic changes observed in the treated zebrafish embryos), which varied widely. Altogether these results show different levels of toxicity of these materials; however, leaching of solubilized metal ions plays a main role.
Bifunctional N‐Heterocyclic Carbene Catalyzed [3+4] Annulation of Enals and Aurones
Authors: Liang Zhi‐Qin , Gao Zhong‐Hua , Jia Wen‐Qiang , Ye Song 
Published: December 2014

AbstractBifunctional N‐heterocyclic carbenes with a free hydroxy group are demonstrated as efficient catalysts for the [3+4] annulation of enals with aurones to give the corresponding benzofuran‐fused ε‐lactones in good yields with good diastereoselectivities and excellent enantioselectivities. Control experiments reveal that the [3+4] cycloadducts are kinetically favored and could be transformed to the thermodynamically favored [3+2] cycloadducts with a non‐bifunctional NHC catalyst.
ChemInform Abstract: Electronic Structure, Elastic Anisotropy, Thermal Conductivity and Optical Properties of Calcium Apatite Ca5(PO4)3X (X: F, Cl or Br).
Authors: Li Cheng‐Xiu , Duan Yong‐Hua , Hu Wen‐Cheng 
Published: December 2014

AbstractThe structural properties, phase stability, electronic structure, elastic properties, and optical properties of Ca5(PO3)4F (FA), Ca5(PO3)4Cl (ClA) and Ca5(PO3)4Br (BrA) are studied by DFT calculations with the generalized gradient approximation.
ChemInform Abstract: Synthesis, Crystal Structure, and Electronic Properties of High‐Pressure PdF2‐Type Oxides MO2 (M: Ru, Rh, Os, Ir, Pt).
Authors: Shirako Yuichi , et al. et al. 
Published: December 2014

AbstractPolycrystalline high‐pressure modifications of the PdF2‐type MO2 (M: Ru, Rh, Os, Ir, Pt) are prepared from their rutile‐type precursors and KClO4 as reduction inhibitor (Pt capsule in multianvil press, 17 GPa, 1273 K).
ChemInform Abstract: Single Phase M+ (M: Li, Na, K), Dy3+ Co‐Doped KSrBP2O8 White Light Emitting Phosphors.
Authors: Zhang Feng , Zhang Ting , Li Guoqiang , Zhang Weifeng 
Published: December 2014

AbstractA series of KSr1‐xBP2O8:xDy3+,M+ (0 ≤ x ≤ 0.09), and M+ (M: Li, Na, K) and Dy3+ co‐doped KSrBP2O8 samples are prepared by solid state reaction of alkali carbonates, H3BO3, NH4H2PO4, and Dy2O3 (alumina crucible, 750 °C, 6.5 h).
ChemInform Abstract: Anode Catalysts for Direct Hydrazine Fuel Cells: From Laboratory Test to an Electric Vehicle.
Authors: Serov Alexey , Padilla Monica , Roy Aaron J. , Atanassov Plamen , Sakamoto Tomokazu , Asazawa Koichiro , Tanaka Hirohisa 
Published: December 2014

AbstractNanocrystalline Ni87Zn13 main phase plus varying amounts of a minor ZnO phase as a highly active electrocatalyst for hydrazine hydrate (HH) fuel cell applications are prepared by ball milling of the metal nitrates and carbon black (500 rpm, 2.5 h) followed by thermal reduction in 7% H2/N2 (450 °C, 4 h).
ChemInform Abstract: Electrochemical Performance of Nanocrystalline Li2CoTiO4 Cathode Materials for Lithium ion Batteries.
Authors: Yang Meng , Zhao Xiangyu , Ma Liqun , Yang Hui , Shen Xiaodong , Bian Yajuan 
Published: December 2014

AbstractThe title cathode materials with different nanostructures are synthesized by a sol—gel method from stoichiometric amounts of Li(OAc), Co(OAc)2, and Ti(O‐Bu)4 dispersed in EtOH (80 °C, 20 h) and subsequent heat treatment at 550, 600, 650, and 700 °C for 10 h under nitrogen flow.
ChemInform Abstract: Bad Metal Behavior in the New Hg‐Rich Amalgam KHg6 with Polar Metallic Bonding.
Authors: Tambornino Frank , Hoch Constantin 
Published: December 2014

AbstractKHg6 is prepared by isothermal electrocrystallization in a solution of KI in DMF at 343 K using a reactive Hg infiltrated amalgamated Cu spoon cathode.
ChemInform Abstract: Solvochemical Synthesis and Crystal Structure of the Fluoride‐Derivatized Early Lanthanoid(III) ortho‐Oxidomolybdates(VI) LnF[MoO4] (Ln: Ce—Nd).
Authors: Schustereit Tanja , Schleid Thomas , Hartenbach Ingo 
Published: December 2014

AbstractSingle crystals of the title compounds are prepared by dropwise combination of an alkaline aqueous solution containing MoO3 and NaOH (pH 14) with an acidic aqueous solution of Ln(NO3)3 (Ln: Ce—Nd) and NaF (pH 4) followed by thermal treatment of the obtained gel at 850 °C for 24 h in evacuated silica ampules.
ChemInform Abstract: Diastereomeric Aziridine Carbinol Catalyzed Enantioselective Arylation Reaction: Toward the Asymmetric Synthesis of Both Enantiomers of Chiral 3‐Aryl Phthalide.
Authors: Song Xixi , Hua Yuan‐Zhao , Shi Jing‐Guo , Sun Ping‐Ping , Wang Min‐Can , Chang Junbiao 
Published: December 2014

AbstractTwo diastereoisomers synthesized from the same chiral source ((S)‐methylbenzyl amine) act as pseudo isomers in the title reaction to produce both enantiomeric products with excellent enantioselectivities.
ChemInform Abstract: A Trinuclear Zn3(OAc)4‐3,3′‐bis(aminoimino)binaphthoxide Complex for Highly Efficient Catalytic Asymmetric Iodolactonization.
Authors: Arai Takayoshi , Sugiyama Noriyuki , Masu Hyuma , Kado Sayaka , Yabe Shinnosuke , Yamanaka Masahiro 
Published: December 2014

AbstractResulting products are obtained with excellent enantioselectivities.
ChemInform Abstract: Pd(II)‐Catalyzed Arylation of Unactivated Methylene C(sp3)—H Bonds with Aryl Halides Using a Removable Auxiliary.
Authors: Zhang Qi , Yin Xue‐Song , Zhao Sheng , Fang Sheng‐Long , Shi Bing‐Feng 
Published: December 2014

AbstractAn efficient procedure is elaborated for the direct arylation of amides (I) and (VII) bearing a 2‐(pyridin‐2‐yl)isopropylamino directing group.
ChemInform Abstract: Palladium on Nano‐Magnetite: A Magnetically Reusable Catalyst in the Ligand‐ and Copper‐Free Sonogashira and Stille Cross‐Coupling Reactions.
Authors: Nasrollahzadeh Mahmoud , Maham Mehdi , Ehsani Ali , Khalaj Mehdi 
Published: December 2014

AbstractThe advantages of this method are simple methodology, high yields, and an easy work‐up procedure.
ChemInform Abstract: Chiral 2‐Amino Alcohol Derivatives Catalyze the Enantioselective α‐Chlorination of β‐Ketoesters.
Authors: Zhang Baohua , Guo Ruixia , Liu Sijie , Shi Lanxiang , Li Xiaoyun 
Published: December 2014

AbstractThe optically active α‐chlorinated products are obtained using inexpensive, commercially available NCS as chlorine source.
ChemInform Abstract: One‐Pot Parallel Synthesis Approach to Secondary Amines Based on the Reductive Amination of Ketones.
Authors: Bogolubsky Andrey V. , Moroz Yurii S. , Pipko Sergey E. , Panov Dmitriy M. , Konovets Anzhelika I. , Doroschuk Roman , Tolmachev Andrey 
Published: December 2014

AbstractA set of arbitrarily chosen acyclic and cyclic, alkyl and aryl ketones as well as amines (twenty each) are converted in this one‐pot approach to build up a library of secondary amines.
ChemInform Abstract: Imino Ene‐Type Reaction of Enamines with N‐Sulfonylimines and Application to Diastereoselective Synthesis of N‐Sulfonyl‐1,3‐diamines.
Authors: Ito Mai , Kashiwagi Takeru , Kotani Shunsuke , Nakajima Makoto , Sugiura Masaharu 
Published: December 2014

AbstractA highly diastereoselective and rapid method is presented to synthesize β‐amino ketones [(III) and (V)] and N‐sulfonyl‐1,3‐diamines (VI).
ChemInform Abstract: Gold‐Catalyzed Direct Hydrogenative Coupling of Nitroarenes to Synthesize Aromatic Azo Compounds.
Authors: Liu Xiang , Li Hai‐Qian , Ye Sen , Liu Yong‐Mei , He He‐Yong , Cao Yong 
Published: December 2014

AbstractSymmetric and asymmetric aromatic azo compounds are directly prepared from gold catalyzed hydrogenative coupling of nitroarenes.
ChemInform Abstract: Modular Hydroxyamide and Thioamide Pyranoside‐Based Ligand Library from the Sugar Pool: New Class of Ligands for Asymmetric Transfer Hydrogenation of Ketones.
Authors: Coll Merce , Pamies Oscar , Dieguez Montserrat 
Published: December 2014

AbstractThe syntheses of ligands (I) and numerous derivatives thereof are described allowing the enantioselective reduction of arylalkyl and hetarylalkyl ketones to both enantiomers of the corresponding alcohols in high yields.
ChemInform Abstract: Nickel‐Catalyzed Carboxylation of Organoboronates.
Authors: Makida Yusuke , Marelli Enrico , Slawin Alexandra M. Z. , Nolan Steven P. 
Published: December 2014

Abstract5,5‐Dimethyl‐1,3,2‐dioxaborinane (Dob) acts as excellent leaving group in the ipso‐carboxylation of arenes and alkenes using Ni‐NHC complex NAI as catalyst.
ChemInform Abstract: Enantioselective Ruthenium(II)/Xyl‐SunPhos/Daipen‐Catalyzed Hydrogenation of γ‐Ketoamides.
Authors: Zhao Mengmeng , Li Wanfang , Li Xiaoming , Ren Kai , Tao Xiaoming , Xie Xiaomin , Ayad Tahar , Ratovelomanana‐Vidal Virginie , Zhang Zhaoguo 
Published: December 2014

AbstractThe presented hydrogenation reaction tolerates a broad substrate scope under mild conditions.
ChemInform Abstract: Organocatalytic Chemo‐ and Regioselective Oxyarylation of Styrenes via a Cascade Reaction: Remote Activation of Hydroxyl Groups.
Authors: Zhang Yu‐Chen , Jiang Fei , Wang Shu‐Liang , Shi Feng , Tu Shu‐Jiang 
Published: December 2014

AbstractThe first method for the organocatalytic oxyarylation of styrenes with quinine imine ketals is presented.
ChemInform Abstract: Efficient Synthesis of Carbazolespirooxindole Skeletons via Asymmetric Diels—Alder Reaction of 3‐Vinylindoles and Methyleneindolinones.
Authors: Zheng Haifeng , He Peng , Liu Yangbin , Zhang Yulong , Liu Xiaohua , Lin Lili , Feng Xiaoming 
Published: December 2014

AbstractThe title reaction generates exclusively the exo‐barbazolespirooxindole derivatives with high enantiomeric excess.
ChemInform Abstract: Iridium‐Catalyzed C‐3 Allylation of Indoles with Allylic Alcohols Promoted by a Broensted Acid.
Authors: Chen Shu‐jie , Lu Guo‐ping , Cai Chun 
Published: December 2014

AbstractAttempts upon an asymmetric allylation using a chiral bisoxazoline ligand provide only racemic product.
ChemInform Abstract: Direct and Enantioselective Vinylogous Michael Addition of α‐Alkylidenepyrazolinones to Nitroolefins Catalyzed by Dual Cinchona Alkaloid Thioureas.
Authors: Rassu Gloria , Zambrano Vincenzo , Pinna Luigi , Curti Claudio , Battistini Lucia , Sartori Andrea , Pelosi Giorgio , Casiraghi Giovanni , Zanardi Franca 
Published: December 2014

AbstractThe reactions proceed with high to excellent Z‐selectivity and can be scaled‐up without loss of stereoselectivity.
ChemInform Abstract: Efficient Microwave‐Assisted Synthesis of N‐(2‐Alkyl/Aryl‐4‐phenyl‐1H‐imidazol‐1‐yl)‐2‐phenylacetamides.
Authors: Mentese Emre , Yilmaz Fatih 
Published: December 2014

AbstractAdvantages of the new method are simple work‐up procedure, no catalyst requirements, and use of small quantities of organic solvents.
ChemInform Abstract: Unlocking the N2 Selectivity of Benzotriazoles: Regiodivergent and Highly Selective Coupling of Benzotriazoles with Allenes.
Authors: Xu Kun , Thieme Niels , Breit Bernhard 
Published: December 2014

AbstractN1 or N2 selective coupling of benzotriazoles with allenes is accomplished using different ligands under otherwise identical reaction conditions.
ChemInform Abstract: Preparation of 4,5‐Disubstituted‐2H‐1,2,3‐triazoles from (Z)‐2,3‐Diaryl Substituted Acrylonitriles.
Authors: Madadi Nikhil Reddy , Penthala Narsimha Reddy , Song Lin , Hendrickson Howard P. , Crooks Peter A. 
Published: December 2014

AbstractA facile procedure for the synthesis of 4,5‐diaryltriazoles (II) (15 examples) via cycloaddition of the title acrylonitriles with sodium azide ‐ a viable alternative to t he synthesis of triazoles via the Huisgen cycloaddition ‐ is given.
ChemInform Abstract: Molecular Iodine Catalyst Promoted Synthesis of Chromans and 4‐Aryl‐3,4‐dihydrobenzopyran‐2‐ones via [3 + 3] Cyclocoupling.
Authors: Naik Mayuri M. , Kamat Durga P. , Tilve Santosh G. , Kamat Vijayendra P. 
Published: December 2014

AbstractThe utility of this method is demonstrated by a short synthesis of precocene II (XIX).
ChemInform Abstract: Ruthenium‐Catalyzed Cyclization of Anilides with Substituted Propiolates or Acrylates: An Efficient Route to 2‐Quinolinones.
Authors: Manikandan Rajendran , Jeganmohan Masilamani 
Published: December 2014

AbstractThe title reaction gives 2‐quinolinones in good yields tolerating diverse functional groups.