bluuebunny/crossref_metadata_2025_split huggingface dataset:
Visible‐Light Sensitization and Photoenergy Storage in Quantum Dot/Polyoxometalate Systems
Authors: Kida Tetsuya , Furuso Hiromasa , Kumamoto Kota , Pramata Azzah Dyah , Yuasa Masayoshi , Shimanoe Kengo 
Published: March 2015

AbstractRecently, the process by which energy is transferred from photoexcited semiconductor nanocrystals, called quantum dots (QDs), to other semiconductors has attracted much attention and has potential application in solar energy conversion (i.e., QD‐sensitized solar cells). Sensitization of wide band gap polyoxometalates (POMs) to visible light by using CuInS2 QDs dispersed in an organic solution is demonstrated herein. Photoluminescence quenching and lifetime studies revealed efficient electron transfer from the CuInS2 QDs to POMs, such as SiW12O40 and W10O32, that were hybridized with a cationic surfactant. CuInS2 QDs function as an antenna that absorbs visible light and supplies electrons to the POMs to enable certain photocatalytic reactions, including noble‐metal‐ion reduction. The photoenergy storage capabilities of the QD‐POM system, in which electrons photogenerated in QDs by visible‐light excitation are trapped and accommodated by POMs to form reduced POM, are also demonstrated. Electrons stored in the POM can be later discharged through reductive reactions, such as oxygen reduction, in the dark.
Phase‐Transfer and Other Types of Catalysis with Cyclopropenium Ions
Authors: Bandar Jeffrey S. , Tanaset Anont , Lambert Tristan H. 
Published: March 2015

AbstractThis work establishes the cyclopropenium ion as a viable platform for efficient phase‐transfer catalysis of a diverse range of organic transformations. The amenability of these catalysts to large‐scale synthesis and structural modification is demonstrated. Evaluation of the molecular structure of an optimal catalyst reveals some unique structural features of these systems. Finally, a discussion of electronic charge distribution underscores an important consideration for catalyst design.
Intramolecular Carbolithiation of Heterosubstituted Alkynes: An Experimental and Theoretical Study
Authors: Lhermet Rudy , Ahmad Maha , Hauduc Clémence , Fressigné Catherine , Durandetti Muriel , Maddaluno Jacques 
Published: March 2015

AbstractA series of heterosubstitued alkynes was successfully submitted to the intramolecular carbolithiation of their triple bond. We show that the addition is stereoselective because of the control exerted by the terminal substituent X on the geometry of the transition state. A complementary DFT study suggests that the addition is anti when a strong Li–X interaction occurs.
Pristine Basal‐ and Edge‐Plane‐Oriented Molybdenite MoS2 Exhibiting Highly Anisotropic Properties
Authors: Tan Shu Min , Ambrosi Adriano , Sofer Zdenĕk , Huber Štěpán , Sedmidubský David , Pumera Martin 
Published: March 2015

AbstractThe layered structure of molybdenum disulfide (MoS2) is structurally similar to that of graphite, with individual sheets strongly covalently bonded within but held together through weak van der Waals interactions. This results in two distinct surfaces of MoS2: basal and edge planes. The edge plane was theoretically predicted to be more electroactive than the basal plane, but evidence from direct experimental comparison is elusive. Herein, the first study comparing the two surfaces of MoS2 by using macroscopic crystals is presented. A careful investigation of the electrochemical properties of macroscopic MoS2 pristine crystals with precise control over the exposure of one plane surface, that is, basal plane or edge plane, was performed. These crystals were characterized thoroughly by AFM, Raman spectroscopy, X‐ray photoelectron spectroscopy, voltammetry, digital simulation, and DFT calculations. In the Raman spectra, the basal and edge planes show anisotropy in the preferred excitation of E2g and A1g phonon modes, respectively. The edge plane exhibits a much larger heterogeneous electron transfer rate constant k0 of 4.96×10−5 and 1.1×10−3 cm s−1 for [Fe(CN)6]3−/4− and [Ru(NH3)6]3+/2+ redox probes, respectively, compared to the basal plane, which yielded k0 tending towards zero for [Fe(CN)6]3−/4− and about 9.3×10−4 cm s−1 for [Ru(NH3)6]3+/2+. The industrially important hydrogen evolution reaction follows the trend observed for [Fe(CN)6]3−/4− in that the basal plane is basically inactive. The experimental comparison of the edge and basal planes of MoS2 crystals is supported by DFT calculations.
Dinuclear Face‐Sharing Bi‐octahedral Tungsten(VI) Core and Unusual Thermal Behavior in Complex Th Tungstates
Authors: Xiao Bin , Gesing Thorsten M. , Robben Lars , Bosbach Dirk , Alekseev Evgeny V. 
Published: March 2015

AbstractTwo new thorium tungstates A6Th6(WO4)14O (A=K and Rb) were synthesized by high‐temperature solid‐state reactions. The structures of both phases are based on a rare dinuclear confacial bi‐octahedral [W2O9]6− core, encapsulated in a [Th6W7O46(W2O9)]32− cage showing a cross‐section geometry similar to a six‐leafed lily. The adjacent cages are connected in two dimensional layers by WO4 tetrahedral linkers. Due to the dissimilarities in mutual orientations of adjacent layers in these two structures, K6Th6(WO4)14O crystallizes in space group of R32 while Rb6Th6(WO4)14O stabilizes in P$\bar 6$2c. The high‐temperature phase transition was observed in Rb6Th6(WO4)14O and investigated using high‐temperature PXRD technique. The results demonstrate a very unusual thermal behavior of this compound. The Raman and IR spectra of both phases were analyzed with respect to their complex structures.
Disentangling Complex Mixtures of Compounds with Near‐Identical 1H and 13C NMR Spectra using Pure Shift NMR Spectroscopy
Authors: Castañar Laura , Roldán Raquel , Clapés Pere , Virgili Albert , Parella Teodor 
Published: March 2015

AbstractThe thorough analysis of highly complex NMR spectra using pure shift NMR experiments is described. The enhanced spectral resolution obtained from modern 2D HOBS experiments incorporating spectral aliasing in the 13C indirect dimension enables the distinction of similar compounds exhibiting near‐identical 1H and 13C NMR spectra. It is shown that a complete set of extremely small Δδ(1H) and Δδ(13C) values, even below the natural line width (1 and 5 ppb, respectively), can be simultaneously determined and assigned.
A General Strategy for the Synthesis of Enantiomerically Pure Azetidines and Aziridines through Nickel‐Catalyzed Cross‐Coupling
Authors: Jensen Kim L. , Nielsen Dennis U. , Jamison Timothy F. 
Published: March 2015

AbstractIn this communication, we report a straightforward synthesis of enantiomerically pure 2‐alkyl azetidines. The protocol is based on a highly regioselective nickel‐catalyzed cross‐coupling of aliphatic organozinc reagents with an aziridine that features a tethered thiophenyl group. Activation by methylation transforms the sulfide into an excellent leaving group and triggers the formation of the 2‐substituted azetidine core structure by cyclization. In addition, we have expanded this concept to the synthesis of enantiomerically pure, terminal alkyl aziridines. Coupling of a TMS‐protected aziridine alcohol, followed by acidic work‐up to remove the silyl group, provides 1,2‐amino alcohol products that are readily cyclized to aziridines. Both of these sequences display excellent functional group tolerance and deliver the desired azetidine and aziridine products in good to excellent yields.
ChemInform Abstract: New LaMAsHx (M: Co, Ni, or Cu) Arsenides with Covalent M—H Chains.
Authors: Mizoguchi Hiroshi , Park SangWon , Hiraka Haruhiro , Ikeda Kazutaka , Otomo Toshiya , Hosono Hideo 
Published: March 2015

AbstractTetragonal LaPtSi‐type mixed‐anion arsenides LaMAsHx (M: Co, Ni, or Cu) are prepared by high‐temperature, high‐pressure reaction of appropriate amounts of M and LaAs (h‐BN sleeve with Ca(OH)2 and NaBH4 as H source in anvil cell, 1473‐1573 K, 2.5‐5 GPa, 0.5‐1 h).
ChemInform Abstract: Q18Mg6(B5O10)3 (B7O14)2F (Q: Rb and Cs): New Borates Containing Two Large Isolated Polyborate Anions with Similar Topological Structures.
Authors: Wang Zheng , Zhang Min , Su Xin , Pan Shilie , Yang Zhihua , Zhang Hui , Liu Lu 
Published: March 2015

AbstractSingle crystals of the isomorphic polyborates of title are obtained from melts of M2CO3 (M: Rb, Cs), MgF2, and H3BO3 (Pt crucible, 780 °C, slow cooling).
ChemInform Abstract: Hydrogenous Zintl Phase Ba3Si4Hx (x = 1—2): Transforming Si4 “Butterfly” Anions into Tetrahedral Moieties.
Authors: Kranak Verina F. , Benson Daryn E. , Wollmann Lukas , Mesgar Milad , Shafeie Samrand , Grins Jekabs , Haeussermann Ulrich 
Published: March 2015

AbstractBa3Si4Hx (x = 1‐2) is prepared by pressurized sintering of the Si46‐ butterfly‐shaped polyanions containing Zintl phase Ba3Si4 in H2 (corundum crucible in an autoclave, 10 bar H2 (20 bar D2), 300 °C, 40 h).
ChemInform Abstract: High Ionic Conductivity in a LiFeO2—LiAlO2 Composite under H2/Air Fuel Cell Conditions.
Authors: Lan Rong , Tao Shanwen 
Published: March 2015

AbstractA composite of the electronic conductor α‐LiFeO2 and the insulator γ‐LiAlO2 is prepared by solid state reaction of a 1:0.7:0.3 molar mixture of Li2CO3, Fe2O3, and Al2O3 (900 °C, 1 h).
ChemInform Abstract: Pb7Bi4Se13: A Lillianite Homologue with Promising Thermoelectric Properties.
Authors: Olvera Alan , Shi Guangsha , Djieutedjeu Honore , Page Alexander , Uher Ctirad , Kioupakis Emmanouil , Poudeu Pierre F. P. 
Published: March 2015

AbstractSingle crystals of Pb7Bi4Se13 are prepared by solid state reaction of the elements (evacuated silica tubes, 1.
ChemInform Abstract: SnSe Alloy as a Promising Anode Material for Na‐Ion Batteries.
Authors: Kim Youngjin , Kim Yongil , Park Yuwon , Jo Yong Nam , Kim Young‐Jun , Choi Nam‐Soon , Lee Kyu Tae 
Published: March 2015

AbstractSnSe and Super P carbon (7:3 weight ratio) are ball milled under Ar.
ChemInform Abstract: pseudo Enantiomeric Carbohydrate Olefin Ligands — Case Study and Application in Kinetic Resolution in Rhodium(I)‐Catalyzed 1,4‐Addition.
Authors: Grugel Holger , Albrecht Fabian , Boysen Mike M. K. 
Published: March 2015

AbstractA new set of carbohydrate olefin ligands [e.g. (FEP)] are synthesized and used in Rh(I) catalyzed 1,4‐addition of cyclic enones.
ChemInform Abstract: Ionic Liquids as Precatalysts in the Highly Stereoselective Conjugate Addition of α,β‐Unsaturated Aldehydes to Chalcones.
Authors: Ta Linda , Axelsson Anton , Bijl Joachim , Haukka Matti , Sunden Henrik 
Published: March 2015

AbstractImidazolium‐based ionic liquids serve as recyclable reaction media as well as precatalysts for the NHC‐catalyzed conjugate addition of α,β‐unsaturated aldehydes to chalcones.
ChemInform Abstract: Micelles Catalyzed One Pot Regio‐ and Chemoselective Synthesis of Benzo[a]phenazines and Naphtho[2,3‐d]imidazoles ′in H2O′.
Authors: Tandon Vishnu K. , Verma Manoj K. , Maurya Hardesh K. , Kumar Sandeep 
Published: March 2015

AbstractNaphthoquinones react under optimized conditions with diamines (II) and benzamides (VI) to give the title species with high regio‐ and chemoselectivity.
ChemInform Abstract: Transition‐Metal‐Free Hunsdiecker Reaction of Electron‐Rich Arenecarboxylic Acids and Aryl Aldehydes in Water.
Authors: Li Zejiang , Wang Kunkai , Liu Zhong‐Quan 
Published: March 2015

AbstractDepending on the electron‐rich substituent of the aryl carboxylic acid or aldehyde used, either mono‐, di‐ or even trihalogenation may take place while preserving or substituting the aldehyde or carboxylic acid functionality, respectively.
ChemInform Abstract: Magnesium Oxide as a Heterogeneous and Recyclable Base for the N‐Methylation of Indole and O‐Methylation of Phenol Using Dimethyl Carbonate as a Green Methylating Agent.
Authors: Gadge Sandip T. , Mishra Ashish , Gajengi Aravind L. , Shahi Nileshkumar V. , Bhanage Bhalchandra M. 
Published: March 2015

AbstractThe employed magnesium oxide can be separated from the reaction mixture by simple filtration and reused for several times without loss in activity and selectivity.
ChemInform Abstract: A Highly Efficient Pd‐Catalyzed Decarboxylative ortho‐Arylation of Amides with Aryl Acylperoxides.
Authors: Li Dengke , Xu Ning , Zhang Yicheng , Wang Lei 
Published: March 2015

AbstractThe title reaction for anilides furnishes the corresponding ortho‐arylated anilides in good yields under aerobic conditions.
ChemInform Abstract: Synthesis and Cyclization Reactions of Axially Chiral N‐Sulfamoyl‐Acrylamidines.
Authors: Lender Andreas , Tornus Ingo , Huebner Eike , Schaumann Ernst 
Published: March 2015

AbstractReaction of aminoazirines (II) with in situ generated N‐sulfonylamines smoothly affords N‐sulfamoylacrylamidines (III).
ChemInform Abstract: Synthesis of Cyclobuteniminium Salts Derived from Aldo‐Keteniminium Salts and Study of Their Reactivity in Diels—Alder Reaction.
Authors: Lumbroso Alexandre , Catak Saron , Sulzer‐Mosse Sarah , De Mesmaeker Alain 
Published: March 2015

AbstractThe experimental investigations are supported by DFT calculations.
ChemInform Abstract: Rhodium‐Catalyzed Tandem Aldol Condensation—Robinson Annulation Between Aldehydes and Acetone: Synthesis of 3‐Methylcyclohexenones.
Authors: Wang Fen , Liu Yuchen , Qi Zisong , Dai Wei , Li Xingwei 
Published: March 2015

AbstractThe title synthesis of 3‐methylcyclohexenones is extended to give disubstituted phenols when Cu(OAc)2 is employed as oxidant.
ChemInform Abstract: Tandem C‐3/C‐2 Annulation of Indole, Benzofuran, and Benzothiophene with 2‐Alkynyl Benzylalcohol: An Efficient Approach to the Diverse Tetracyclic Heteroazulene Ring Systems.
Authors: Sarkar Soumen , Bera Krishnendu , Jana Umasish 
Published: March 2015

AbstractThe flexible and versatile strategy offers access to biologically and pharmaceutically relevant tetracyclic indole, benzofuran and benzothiophene derivatives bearing aryl, hetaryl and alkyl substituent on the azulene ring.
ChemInform Abstract: An Efficient Homogeneous Gold(I) Catalyst for N‐Alkylation of Amines with Alcohols by Hydrogen Autotransfer.
Authors: Yang Hongwei , Mao Rongfang , Luo Cuicui , Lu Chunxu , Cheng Guangbin 
Published: March 2015

AbstractThe efficient reaction procedure yields secondary amines selectively.
ChemInform Abstract: Enantioselective Synthesis of Chiral 1,2‐Amino Alcohols via Asymmetric Hydrogenation of α‐Amino Ketones with Chiral Spiro Iridium Catalysts.
Authors: Yuan Ming‐Lei , Xie Jian‐Hua , Yang Xiao‐Hui , Zhou Qi‐Lin 
Published: March 2015

AbstractReaction is successfully applied in the synthesis of drugs (R)‐clorprenaline (VII) (β2‐agonist) and (R)‐phenylephrine (VIII) (α‐adrenergic receptor agonist).
ChemInform Abstract: Microwave‐Assisted, Tetrabutylammonium Hydroxide Catalyzed 1,4‐Addition of Water to α,β‐Unsaturated Ketones and α,β‐Ynones in Aqueous Solution.
Authors: Lee Hyejeong , Jun Chul‐Ho 
Published: March 2015

AbstractApplication of the reaction conditions to chalcones provides not only the products of C—C bond cleavage, but also a secondary 1,4‐addition product.
ChemInform Abstract: Silver‐Promoted trans‐Hydrofluorination of Ynamides: A Regio‐ and Stereoselective Approach to (Z)‐α‐Fluoroenamides.
Authors: Che Jianwei , Li Yinglong , Zhang Fang , Zheng Renwei , Bai Yihui , Zhu Gangguo 
Published: March 2015

AbstractThe reaction tolerates a variety of functional groups.
ChemInform Abstract: Rapid Synthesis of Aryl Sulfides Through Metal‐Free C—S Coupling of Thioalcohols with Diaryliodonium Salts.
Authors: Wang Dawei , Yu Xin , Zhao Keyan , Li Liang , Ding Yuqiang 
Published: March 2015

AbstractAliphatic thiols do not form the corresponding aliphatic sulfides.
ChemInform Abstract: Multicomponent Cascade Cycloaddition Involving Tropone, Allenoate, and Isocyanide: A Rapid Access to a 7,6,5‐Fused Tricyclic Skeleton.
Authors: Jia Shuanglong , Su Shikuan , Li Chunju , Jia Xueshun , Li Jian 
Published: March 2015

AbstractThe synthetically efficient protocol for the construction of unusual tricyclic skeletons is performed under mild conditions and features excellent atom economy.
ChemInform Abstract: Solvent‐ and Transition Metal‐Free Synthesis of Spiro[cyclopropane‐1,3‐oxindoles] from Cyclic Diazoamides.
Authors: Muthusamy Sengodagounder , Ramkumar Rajagopal 
Published: March 2015

AbstractThermal decomposition of diazoimides in the presence of mono‐ and 1,2‐disubstituted alkenes results in the diastereoselective formation of a wide range of spiro compounds.
ChemInform Abstract: One‐Pot Synthesis of α‐Fluoro‐β‐Amino Acid and Indole Spiro‐Derivatives via C—N Bond Cleavage/Formation.
Authors: Tang Chen‐Yu , Wang Ge , Yang Xue‐Yan , Wu Xin‐Yan , Sha Feng 
Published: March 2015

AbstractDepending on the fluorinating reagent the reaction of arynes with aziridines affords fluorinated β‐amino acid esters or unexpected spiro‐derivatives.
ChemInform Abstract: RhIII‐Catalyzed Dual Directing Group Assisted Sterically Hindered C—H Bond Activation: A Unique Route to meta and ortho Substituted Benzofurans.
Authors: Yeh Chien‐Hung , Chen Wei‐Chen , Gandeepan Parthasarathy , Hong Ya‐Chun , Shih Cheng‐Hung , Cheng Chien‐Hong 
Published: March 2015

AbstractThis efficient reaction which proceeds regioselectively at the sterically more congested C—H bond can be scaled up.
ChemInform Abstract: Novel One‐Pot Asymmetric Cascade Approach Toward Densely Substituted Enantioenriched α‐Methylene‐γ‐lactams.
Authors: Tan Yu , Yang Xiao‐Di , Liu Wen‐Jie , Sun Xing‐Wen 
Published: March 2015

AbstractThe Zn‐promoted aza‐Barbier type allylations of optically active imines (II) with coumarin (I) give the title lactams with excellent diastereoselectivity.
ChemInform Abstract: One‐Pot, Three‐Component Cascade Synthesis of New Tetrasubstituted Pyrroles by Coupling Reaction of 2‐Functionally Substituted 2‐Alkenals, Amines, and Nitroethane.
Authors: Keiko Natalia A. , Vchislo Nadezhda V. , Verochkina Ekaterina A. , Larina Ludmila I. 
Published: March 2015

AbstractThe formation of the kinetically controlled 1,2‐adduct of nitroethane onto α,β‐enimines and its further conversion is examined.
ChemInform Abstract: Convergent Integration of Three Self‐Sorting Domino Sequences: Three‐Component Direct Synthesis of 3‐Methylthio‐4‐aryl‐maleimides from Methyl Ketones with Acetonitrile and DMSO.
Authors: Gao Qinghe , Liu Shan , Wu Xia , Wu Anxin 
Published: March 2015

AbstractThe title reaction involves the in situ formation of acetamide from acetonitrile.
ChemInform Abstract: Yonemitsu‐Type Condensations Catalyzed by Proline and Eu(OTf)3.
Authors: Renzetti Andrea , Boffa Emanuela , Colazzo Marco , Gerard Stephane , Sapi Janos , Chan Tak‐Hang , Nakazawa Hiroshi , Villani Claudio , Fontana Antonella 
Published: March 2015

AbstractThe products are obtained as single diastereomers or as mixtures of diastereomers.
ChemInform Abstract: Copper‐Catalyzed Cyanoalkylarylation of Activated Alkenes with AIBN: A Convenient and Efficient Approach to Cyano‐Containing Oxindoles.
Authors: Wei Wei , Wen Jiangwei , Yang Daoshan , Guo Mengyuan , Tian Laijin , You Jinmao , Wang Hua 
Published: March 2015

AbstractThe simple method offers access to cyano‐containing oxindoles with potential applications in pharmaceutical chemistry which are difficult to obtain by previously performed syntheses.
ChemInform Abstract: Palladium‐Catalyzed Annulation of Diarylamines with Olefins Through C—H Activation: Direct Access to N‐Arylindoles.
Authors: Sharma Upendra , Kancherla Rajesh , Naveen Togati , Agasti Soumitra , Maiti Debabrata 
Published: March 2015

AbstractThe title process is widely applicable to olefins including styrenes, aliphatic and cycloaliphatic olefins.
ChemInform Abstract: Selective Sulfonylation and Diazotization of Indoles.
Authors: Qiu Jiang‐Kai , Hao Wen‐Juan , Wang De‐Cai , Wei Ping , Sun Jun , Jiang Bo , Tu Shu‐Jiang 
Published: March 2015

AbstractThe metal‐free oxidative coupling of C2,C3‐unsubstituted indoles with arylsulfonylhydrazides proceeds under mild conditions and furnishes difunctionalized indoles with good to excellent yields.
ChemInform Abstract: Organocatalytic Domino Michael/Cyclization Reaction: Efficient Synthesis of Multi‐Functionalized Tetracyclic Spirooxindoles with Multiple Stereocenters.
Authors: Fu Zu‐Kang , Pan Jin‐Yun , Xu Dong‐Cheng , Xie Jian‐Wu 
Published: March 2015

AbstractThe asymmetric domino reaction of various nitro‐chromene derivatives to 3‐isothiocyanato oxindole (II) proceeds with good enantioselectivities, employing a readily available bifunctional thiourea as the organocatalyst.
ChemInform Abstract: Multicomponent Reactions in PEG‐400: Ruthenium‐Catalyzed Synthesis of Substituted Pyrroles.
Authors: Chandrasekhar Srivari , Patro Vidyavathi , Chavan Lahu N. , Chegondi Rambabu , Gree Rene 
Published: March 2015

AbstractThe eco‐friendly protocol can not be applied to vicinal diols other than ethylene glycol (III), such as butane‐2,3‐diol, phenylethane‐1,2‐diol, 1,2‐diphenylethane‐1,2‐diol, and cyclohexane‐1,2‐diol.
ChemInform Abstract: Practical Synthesis of Pyrazoles via a Copper‐Catalyzed Relay Oxidation Strategy.
Authors: Tang Xiaodong , Huang Liangbin , Yang Jidan , Xu Yanli , Wu Wanqing , Jiang Huanfeng 
Published: March 2015

Abstract1,3‐ and 1,3,4‐substituted pyrazoles are smoothly formed via a one‐pot cascade reaction under aerobic conditions with oxime acetates.
ChemInform Abstract: Isoxazole‐Embedded Allylic Zinc Reagent for the Diastereoselective Preparation of Highly Functionalized Aldol‐Type Derivatives Bearing a Stereocontrolled Quaternary Center.
Authors: Klier Lydia , Diene Coura R. , Schickinger Manuel , Metzger Albrecht , Wagner Andreas J. , Karaghiosoff Konstantin , Marek Ilan , Knochel Paul 
Published: March 2015

AbstractThe freshly prepared Zn reagent (I) (stable in THF at room temperature for several days) is tested in various processes.
ChemInform Abstract: Synthesis of Isomerically Pure 3‐(5‐Trifluoromethyl‐1,2,3‐triazol‐4‐yl)cinnamic Acid Derivatives via the Reaction of 4‐Aryl‐6‐trifluoromethyl‐2‐pyrones with Sodium Azide.
Authors: Usachev Sergey A. , Usachev Boris I. , Eltsov Oleg S. , Sosnovskikh Vyacheslav Y. 
Published: March 2015

AbstractVariously substituted α‐ and γ‐pyrones as well as chromones activated by a trifluoromethyl group are transformed to previously unknown triazolo‐substituted cinnamic acid derivatives.
ChemInform Abstract: Molecular Sieves: An Efficient and Reusable Catalyst for Multi‐Component Synthesis of Dihydropyrano[2,3‐C]pyrazole Derivatives.
Authors: Gujar Jitendra B. , Chaudhari Mahendra A. , Kawade Deepak S. , Shingare Murlidhar S. 
Published: March 2015

AbstractThe synthesis of dihydropyranopyrazoles (IV) can be performed under ultrasound irradiation or reflux conditions.
ChemInform Abstract: Pd‐Catalyzed Asymmetric Intermolecular Hydroalkoxylation of Allene: An Entry to Cyclic Acetals with Activating Group‐Free and Flexible Anomeric Control.
Authors: Lim Wontaeck , Kim Jungjoon , Rhee Young Ho 
Published: March 2015

AbstractA ligand‐directed, metal‐catalyzed asymmetric intermolecular hydroalkoxylation of alkoxyallene and subsequent ring‐closing metathesis offers a new atom‐efficient method toward cyclic acetals with unique anomeric control.
ChemInform Abstract: Ball Milling for the Quantitative and Specific Solvent‐Free Knoevenagel Condensation + Michael Addition Cascade in the Synthesis of Various 2‐Amino‐4‐aryl‐3‐cyano‐4H‐chromenes Without Heating.
Authors: Qareaghaj Omid Hosseinchi , Mashkouri Sara , Naimi‐Jamal M. Reza , Kaupp Gerd 
Published: March 2015

AbstractThe environmentally benign reaction proceeds regioselectively with quantitative product yields and does not require organic solvents.
ChemInform Abstract: Efficient Stepwise and One Pot Three‐Component Synthesis of 2‐Amino‐4‐(2‐oxo‐2H‐chromen‐3‐yl)thiophene‐3‐carbonitriles.
Authors: Srikrishna Devulapally , Dubey Pramod Kumar 
Published: March 2015

AbstractThe title compounds are prepared in a step‐wise as well as one‐pot manner with the latter requiring shorter reaction times while delivering higher product yields.