bluuebunny/crossref_metadata_2025_split huggingface dataset:
Control of Metal Arrays Based on Heterometallics Masquerading in Heterochiral Aggregations of Chiral Clothespin‐Shaped Complexes
Authors: Naito Masaya , Inoue Ryo , Iida Masayuki , Kuwajima Yuuki , Kawamorita Soichiro , Komiya Naruyoshi , Naota Takeshi 
Published: July 2015

AbstractHeterometal arrays in molecular aggregations were obtained by the spontaneous and ultrasound‐induced gelation of organic liquids containing the chiral, clothespin‐shaped trans‐bis(salicylaldiminato) d8 transition‐metal complexes 1. Heterometallic mixtures of complexes 1 a (Pd) and 1 b (Pt) underwent strict heterochiral aggregation entirely due to the organic shell structure of the clothespin shape, with no effect of the metal cores. This phenomenon provides an unprecedented means of generating highly controlled heterometallic arrangements such as alternating sequences [(+)‐Pd(−)‐Pt(+)‐Pd(−)‐Pt⋅⋅⋅] as well as a variety of single metal‐enriched arrays (e.g., [(+)‐Pt(−)‐Pd(+)‐Pd(−)‐Pd(+)‐Pd(−)‐Pd⋅⋅⋅] and [(+)‐Pd(−)‐Pt(+)‐Pt(−)‐Pt(+)‐Pt(−)‐Pt⋅⋅⋅]) upon the introduction of an optically active masquerading unit with a different metal core in the heterochiral single‐metal sequence. The present method can be applied to form various new aggregates with optically active Pd and Pt units, to allow 1) tuning of the gelation ultrasound sensitivity based on the different hearing abilities of the metal units; 2) aggregation‐induced chirality transfer between heterometallic species; and 3) aggregation‐induced chirality enhancement. A mechanistic rationale is proposed for these molecular aggregations based on the molecular structures of the units and the morphologies of the aggregates.
Configuration‐Dependent Photoinduced Electron Transfer in Diastereomeric Naphthalene‐Amino‐Naphthalene Triads
Authors: Nuin Edurne , Sastre German , Pischel Uwe , Andreu Inmaculada , Miranda Miguel A. 
Published: July 2015

AbstractNovel diastereomeric triads containing two naphthalene chromophores have been designed in which an electron‐donating amine moiety is covalently integrated into the connecting bridge. Photophysical studies (steady‐state and time‐resolved fluorescence) in solvents of different polarity have been performed. A remarkable stereodifferentiation in the intramolecular fluorescence quenching was found in acetonitrile. Laser flash photolysis gave rise to naphthalene‐derived radical cations, which were also quenched by the amine with an even higher degree of stereodifferentiation. The results are in agreement with thermodynamic estimations and indicate that photoinduced electron transfer (PET) is the main quenching pathway. Furthermore, theoretical calculations have allowed us to explain the experimentally observed stereodifferentiation in PET quenching.
Synthesis of Diverse N‐Substituted Muramyl Dipeptide Derivatives and Their Use in a Study of Human NOD2 Stimulation Activity
Authors: Chen Kuo‐Ting , Huang Duen‐Yi , Chiu Cheng‐Hsin , Lin Wan‐Wan , Liang Pi‐Hui , Cheng Wei‐Chieh 
Published: July 2015

AbstractA flexible synthetic strategy toward the preparation of diverse N‐substituted muramyl dipeptides (N‐substituted MDPs) from different protected monosaccharides is described. The synthetic MDPs include N‐acetyl MDP and N‐glycolyl MDP, known NOD2 ligands, and this methodology allows for structural variation at six positions, including the muramic acid, peptide, and N‐substituted moieties. The capacity of these molecules to activate human NOD2 in the innate immune response was also investigated. It was found that addition of the methyl group at the C1 position of N‐glycolyl MDP significantly enhanced the NOD2 stimulating activity.
Redox‐Active Metal–Organic Frameworks: Highly Stable Charge‐Separated States through Strut/Guest‐to‐Strut Electron Transfer
Authors: Sikdar Nivedita , Jayaramulu Kolleboyina , Kiran Venkayala , Rao K. Venkata , Sampath Srinivasan , George Subi J. , Maji Tapas Kumar 
Published: July 2015

AbstractMolecular organization of donor and acceptor chromophores in self‐assembled materials is of paramount interest in the field of photovoltaics or mimicry of natural light‐harvesting systems. With this in mind, a redox‐active porous interpenetrated metal–organic framework (MOF), {[Cd(bpdc)(bpNDI)]⋅4.5 H2O⋅DMF}n (1) has been constructed from a mixed chromophoric system. The μ‐oxo‐bridged secondary building unit, {Cd2(μ‐OCO)2}, guides the parallel alignment of bpNDI (N,N′‐di(4‐pyridyl)‐1,4,5,8‐naphthalenediimide) acceptor linkers, which are tethered with bpdc (bpdcH2=4,4′‐biphenyldicarboxylic acid) linkers of another entangled net in the framework, resulting in photochromic behaviour through inter‐net electron transfer. Encapsulation of electron‐donating aromatic molecules in the electron‐deficient channels of 1 leads to a perfect donor–acceptor co‐facial organization, resulting in long‐lived charge‐separated states of bpNDI. Furthermore, 1 and guest encapsulated species are characterised through electrochemical studies for understanding of their redox properties.
Tetraphenylethene Derivatives with Different Numbers of Positively Charged Side Arms have Different Multimeric G‐Quadruplex Recognition Specificity
Authors: Zhang Qi , Liu Yan‐Chen , Kong De‐Ming , Guo Dong‐Sheng 
Published: July 2015

AbstractSome G‐rich sequences in the human genome have the potential to fold into a multimeric G‐quadruplex (G4) structure and the formation of telomeric multimeric G4 has been demonstrated. Searching for highly specific multimeric G4 ligands is important for structure probing and for study of the function of G‐rich gene sequences, as well as for the design of novel anticancer drugs. We found different numbers of positively charged side‐arm substituents confer tetraphenylethene (TPE) derivatives with different multimeric G4 recognition specificity. 1,2‐Bis{4‐[(trimethylammonium)butoxy]phenyl}‐1,2‐tetraphenylethene dibromide (DATPE), which contains two side arms and gives a fluorescence response to only multimeric G4, has a low level of cytotoxicity and little or no effect on multimeric G4 conformation or stability. These features make DATPE a promising fluorescent probe for detection of multimeric G4 specifically in biological samples or in vivo. 1,1,2,2‐Tetrakis{4‐[(trimethylammonium)butoxy]phenyl}tetraphenylethene tetrabromide (QATPE), which contains four side arms, has a lower level of specificity for multimeric G4 recognition compared to DATPE but its binding affinity to multimeric G4 is higher compared to other structural DNAs. Its high multimeric G4‐binding affinity, excellent multimeric G4‐stabilizing ability, and the promotion of parallel G4 formation make QATPE a good candidate for novel anticancer drugs targeting multimeric G4 specifically, especially telomeric multimeric G4. This work provides information that might aid the design of specific multimeric G4 probes and the development of novel anticancer drugs.
Bioorthogonal SERS Nanoprobes for Mulitplex Spectroscopic Detection, Tumor Cell Targeting, and Tissue Imaging
Authors: Wu Junzhou , Liang Duanwei , Jin Qingqing , Liu Jie , Zheng Meiling , Duan Xuanming , Tang Xinjing 
Published: July 2015

AbstractA surface‐enhanced Raman scattering (SERS) technique shows extraordinary features for a range of biological and biomedical applications. Herein, a series of novel bioorthogonal SERS nanoprobes were constructed with Gold nanoflower (AuNF) and Raman reporters, the signals of which were located in a Raman‐silent region of biological samples. AS1411 aptamer was also co‐conjugated with AuNF through a self‐assembled monolayer coverage strategy. Multiplex SERS imaging using these nanoprobes with three different bioorthogonal small‐molecule Raman reporters is successfully achieved with high multiplexing capacity in a biologically Raman‐silent region. These Raman nanoprobes co‐conjugated with AS1411 showed high affinity for tumor cells with overexpressed nucleolin and can be used for selective tumor cell screening and tissue imaging.
Ring Contraction of 3‐Hydroxy‐3‐(trifluoromethyl)piperidines: Synthesis of 2‐Substituted 2‐(Trifluoromethyl)pyrrolidines
Authors: Feraldi‐Xypolia Alexandra , Gomez Pardo Domingo , Cossy Janine 
Published: July 2015

AbstractA ring contraction of 3‐hydroxy‐3‐(trifluoromethyl)piperidines was achieved via an aziridinium intermediate. This contraction facilitates the synthesis of a series of 2‐substituted 2‐(trifluoromethyl)pyrrolidines incorporating a quaternary center at the C2 position.
Preparation of Information‐Containing Macromolecules by Ligation of Dyad‐Encoded Oligomers
Authors: Trinh Thanh Tam , Oswald Laurence , Chan‐Seng Delphine , Charles Laurence , Lutz Jean‐François 
Published: July 2015

AbstractA simplified strategy for preparing non‐natural information‐containing polymers is reported. The concept relies on the successive ligation of oligomers that contain minimal sequence motifs. It was applied here to the synthesis of digitally‐encoded poly(triazole amide)s, in which propyl and 2‐methyl propyl motifs are used to code 0 and 1, respectively. A library of four oligo(triazole amide)s containing the information dyads 00, 01, 10, and 11 was prepared. These oligomers contain two reactive functions, that is, an alkyne and a carboxylic acid. Thus, they can be linked to another with the help of a reactive spacer containing azide and amine functions. Using two successive chemoselective steps, that is, azide‐alkyne Huisgen cycloaddition and carboxylic acid‐amine coupling, monodisperse polymers can be obtained. In particular, the library of dyads permits the implementation of any desired sequence using a small number of steps. As a proof‐of‐concept, the synthesis of molecular bytes 00000000 and 00000110 is described.
ChemInform Abstract: Crystal Structure Determination of Pb2F2(HF)(SbF6)2, PbFSbF6 and Ba(HF)(AF6)2: (A: As, Sb).
Authors: Tramsek Melita , Mazej Zoran , Goreshnik Evgeny , Tavcar Gasper 
Published: July 2015

AbstractPb(SbF6)2 and Ba(SbF6)2 and PbFSbF6 are prepared by reaction of the corresponding metal difluorides, SbF3, anhydrous HF, and excess elemental F2 (fluoroethylene‐hexafluoropropylene reaction vessels, 25 °C).
ChemInform Abstract: Synthesis, Crystal Structure and Photoluminescence Properties of New Blue‐Green Ba1‐x(PO3)2:Eux2+ (0 < x ≤ 0.040) Phosphors for Near Ultraviolet Based White Light‐Emitting Diodes.
Authors: Wu Zhan‐Chao , Fu Hong‐Hong , Liu Jie , Kuang Shao‐Ping , Wu Ming‐Mei , Xu Jun‐Gu , Kuang Xiao‐Jun 
Published: July 2015

AbstractBa1‐x(PO3)2:Eux2+ (x = 0.005‐0.040) phosphors are prepared by a solid‐state reaction of BaCO3, NH4H2PO4, and Eu2O3 in stoichiometric amounts (CO atmosphere, alundum crucible, 600 °C, 6 h).
ChemInform Abstract: Non‐aqueous Sol—Gel Synthesis of Ultra Small Persistent Luminescence Nanoparticles for Near‐Infrared in vivo Imaging.
Authors: Teston Eliott , Richard Sophie , Maldiney Thomas , Lievre Nicole , Wang Guillaume Yangshu , Motte Laurence , Richard Cyrille , Lalatonne Yoann 
Published: July 2015

AbstractZnGa2O4:Cr3+ (5 mol%) nanoparticles of 6 nm are prepared by a microwave‐assisted non‐aqueous sol‐gel method starting with microwave heating of ZnII‐, GaIII, and CrIII‐2,4‐pentanedionate monohydrates in BnOH in the presence of Cr (270 °C, 30 min) followed by grafting of the as‐prepared precipitate with a phosphonate‐PEG (MW 2000) aqueous solution leading to a highly stable dispersion (pH 2‐10) under physiological conditions.
ChemInform Abstract: Codoping in SnTe: Enhancement of Thermoelectric Performance Through Synergy of Resonance Levels and Band Convergence.
Authors: Tan Gangjian , Shi Fengyuan , Hao Shiqiang , Chi Hang , Zhao Li‐Dong , Uher Ctirad , Wolverton Chris , Dravid Vinayak P. , Kanatzidis Mercouri G. 
Published: July 2015

AbstractThe thermoelectric performance of p‐type SnTe is enhanced over a broad temperature range with a peak ZT (figure of merit) value of ≈1.4 at 923 K via In/Cd co‐doping and CdS nanostructuring.
ChemInform Abstract: High‐Yield Electrosynthesis of Hydrogen Peroxide from Oxygen Reduction by Hierarchically Porous Carbon.
Authors: Liu Yanming , Quan Xie , Fan Xinfei , Wang Hua , Chen Shuo 
Published: July 2015

AbstractHierarchically porous carbon (HPC) as a cost‐effective catalyst for the production of H2O2 via electroreduction of O2 in aqueous solution is prepared by solvothermal synthesis of a metal organic framework (MOF‐5) from Zn(NO3)2 and 1,4‐benzenedicarboxylic acid in DMF (autoclave, 100 °C, 0.5, 1, or 2 d) and subsequent carbonization under H2 (1100 °C, 5 h).
ChemInform Abstract: Simple Route for Gram Synthesis of Less Defective Few Layered Graphene and Its Electrochemical Performance.
Authors: Parveen Nazish , Ansari Mohd Omaish , Cho Moo Hwan 
Published: July 2015

AbstractFabrication of high‐quality graphene (GN) sheets is performed using a less corrosive technique for electrochemical graphite exfoliation under application of an optimized aqueous solution of NaOH, Na2S2O3, and NaClO4 as electrolyte.
ChemInform Abstract: Unusual Crystallographic Existence of a Hydrated Zinc(II) Bisulfate Complex: Experimental and Theoretical Observations.
Authors: Dey Dhananjay , Pal Sukanta , Yadav Hare Ram , Sengupta Partha Sarathi , Choudhury Angshuman Roy , Kole Niranjan , Biswas Bhaskar 
Published: July 2015

Abstract[Zn(H2O)6] (HSO4·H2O)2 (I) is obtained in 72% yield from an aqueous MeOH solution of ZnSO4, 4,4′‐bipyridine, and NH4SCN.
ChemInform Abstract: Synthesis of RbREF4 (RE: Pr, Nd, Sm, Eu, and Tb) and RbRE2F7 (Dy, Ho, Er and Yb) under Non‐aqueous Conditions.
Authors: Tripathi Vikash Kumar , Saroj Sanjay Kumar , Nagarajan Rajamani 
Published: July 2015

AbstractCrystalline phases of the title compounds are prepared by the reaction of Ln(acac)3 (Ln: lanthanide) with RbF in MeOH (25 °C, 12 h).
ChemInform Abstract: Extended Structural Materials Composed of Transition‐Metal‐Substituted Arsenicniobates and Their Photocatalytic Activity.
Authors: Lan Qing , Zhang Zhi‐Ming , Li Yang‐Guang , Wang En‐Bo 
Published: July 2015

AbstractThe novel cluster compounds [Cu(en)2(H2O)] [Cu(en)2] 4{AsNb9V7O44 }·8H2O (I) and [Cu(en)2(H2O)] [Cu(en)2] 4H{AsNb8V8O44 }·11H2O (II) are prepared in 41 and 38% yield, resp., by solvothermal reaction of K7HNb6O19, Cu(OAc)2, Na2VO3, As2O3, and en under nearly identical conditions (HCl, H2O, autoclave, 160 °C, 5 d) except for the pH value which should be in the range 10.3—10.6 for (I) and 10.7—11.0 for (II).
ChemInform Abstract: Flux Synthesis, Structure, Properties, and Theoretical Magnetic Study of Uranium(IV)‐Containing A2USi6O15 (A: K, Rb) with an Intriguing Green‐to‐Purple, Crystal‐to‐Crystal Structural Transition in the K Analogue.
Authors: Morrison Gregory , Ramanantoanina Harry , Urland Werner , Smith Mark D. , zur Loye Hans‐Conrad 
Published: July 2015

AbstractThe compounds M2USi6O15 (M: K, Rb, Cs) are prepared in 61, 29, and 37% yield, resp., by layering a mixture of UO2 and SiO2 under a MF/MCl mixture that acts as a flux (copper tube, N2 flow, 900 °C, 12 h).
ChemInform Abstract: Introduction of the 4,4,4‐Trifluorobut‐2‐ene Chain Exploiting a Regioselective Tsuji—Trost Reaction Catalyzed by Palladium Nanoparticles.
Authors: Hemelaere Remy , Desroches Justine , Paquin Jean‐Francois 
Published: July 2015

AbstractAn effective process for the regioselective Tsuji—Trost reaction of 4,4,4‐trifluorobut‐2‐ene derived carbonate (I) and (VI), or acetate (VII) with aromatic alcohols, secondary amines, and malonate type C‐nucleophiles is developed.
ChemInform Abstract: A Mild and Efficient Zn‐Catalyzed C‐Glycosylation: Synthesis of C(2)—C(3) Unsaturated C‐Linked Glycopyranosides.
Authors: Reddy Thurpu Raghavender , Rao Dodla Sivanageswara , Kashyap Sudhir 
Published: July 2015

AbstractThe reaction tolerates a broad range of nucleophiles, including silanes bearing hydrogen, alkyl, cyano, azido, and alkynyl groups, as well as hetaromatics, malonates, and trimethylaluminium.
ChemInform Abstract: Amine‐Catalyzed Tunable Reactions of Allenoates with Dithioesters: Formal [4 + 2] and [2 + 2] Cycloadditions for the Synthesis of 2,3‐Dihydro‐1,4‐oxathiines and Enantioenriched Thietanes.
Authors: Yang Hai‐Bin , Yuan Yu‐Chao , Wei Yin , Shi Min 
Published: July 2015

AbstractNovel amine‐catalyzed tunable cycloadditions between allenoates and dithioesters, providing a divergent synthesis of 2,3‐dihydro‐1,4‐oxathiines and enantioenriched thietanes is reported.
ChemInform Abstract: A Facile Synthesis of Glyco 3‐Nitrochromane Hybrid Pyrrolidinyl Spiro Heterocycles via [3 + 2] Cycloaddition of Azomethine Ylides.
Authors: Naga Siva Rao J. , Raghunathan R. 
Published: July 2015

AbstractAzomethine ylides generated in situ by the condensation of α‐amino acids and diketones undergo [3 + 2] cycloaddition reactions with glyco 3‐nitrochromenes such as (I) to give spirocyclic heterocycles.
ChemInform Abstract: Tuneable Hydrogenation of Nitriles into Imines or Amines with a Ruthenium Pincer Complex under Mild Conditions.
Authors: Choi Jong‐Hoo , Prechtl Martin H. G. 
Published: July 2015

AbstractBy adjustment of the reaction parameters an efficient transformation of aromatic and aliphatic nitriles into amines or imines is achieved.
ChemInform Abstract: Copper‐Catalyzed Trifluoromethylation of Organic Zinc Reagents with an Electrophilic Trifluoromethylating Reagent.
Authors: Wang Chang‐Sheng , Wang Haoyang , Yao Cheng 
Published: July 2015

AbstractVarious aryl‐, vinyl‐, and alkyl zinc reagents are trifluoromethylated with Togni′s reagent under mild reaction conditions.
ChemInform Abstract: Passerini/Tsuji—Trost Strategies Towards Achieving Lactams and Cyclopentane Derivatives.
Authors: Cordier Marie , Dos Santos Aurelie , El Kaim Laurent , Narboni Noisette 
Published: July 2015

AbstractNew Tsuji—Trost transformations of Passerini adducts derived from α,β‐unsaturated aldehydes are reported.
ChemInform Abstract: Cobalt‐Catalyzed Negishi Cross‐Coupling Reactions of (Hetero)Arylzinc Reagents with Primary and Secondary Alkyl Bromides and Iodides.
Authors: Hammann Jeffrey M. , Haas Diana , Knochel Paul 
Published: July 2015

AbstractA one‐pot Negishi‐type cross‐coupling reaction of initially formed diarylzinc reagents with primary and secondary alkyl iodides is developed.
ChemInform Abstract: α‐Monoarylation and Tandem Arylation—Insertion of Malonates with Arynes.
Authors: Chen Qian , Zhang Changyuan , Chen Lili , Wen Chunxiao , Du Zhiyun , Chen Huixiong , Zhang Kun 
Published: July 2015

AbstractThe facile protocol allows the α‐monoarylation of malonates with in situ generated arynes.
ChemInform Abstract: The Reactivity of 4‐Hydroxy‐ and 4‐Silyloxy‐1,5‐allenynes with Homogeneous Gold(I) Catalysts.
Authors: Wegener Michael , Kirsch Stefan F. 
Published: July 2015

AbstractVarious mono‐ and bicyclic, polyunsaturated carbonyl compounds are obtained by new gold(I)‐catalyzed cascade reactions of 4‐hydroxy‐ and 4‐silyloxy‐1,5‐allenynes.
ChemInform Abstract: Pd‐Catalyzed Csp2—H Functionalization of Heteroarenes via Isocyanide Insertion: Concise Synthesis of Di‐(Hetero)aryl Ketones and Di‐(Hetero)aryl Alkylamines.
Authors: Sharma Upendra K. , Sharma Nandini , Xu Jun , Song Gonghua , Van der Eycken Erik V. 
Published: July 2015

AbstractThis Pd‐catalyzed three‐component reaction provides imine intermediates which are either hydrolyzed to give ketones or reduced to give amines.
ChemInform Abstract: Ruthenium‐Catalyzed Highly Chemoselective Hydrogenation of Aldehydes.
Authors: Bonomo Lucia , Kermorvan Laurent , Dupau Philippe 
Published: July 2015

AbstractThe efficient hydrogenation of aliphatic and aromatic aldehydes in the presence of a range of functional groups is described, including ketones, carboxylic acids, esters, and amides, epoxides, nitriles, alkenes, as well as strained ring systems.
ChemInform Abstract: Efficient Strategy for Construction of 6‐Carbamoylfulvene‐6‐carboxylate Skeletons via [3 + 2] Cycloaddition of 1‐Cyanocyclopropane 1‐Ester with β‐Nitrostyrenes.
Authors: Tan Chen , Ye Weijian , Yao Juan , Liu Juanjuan , Xue Shuwen , Li Yang , Wang Cunde 
Published: July 2015

AbstractThe reaction does not allow the use 1,1‐dicyanocyclopropanes instead of 1‐cyanocyclopropane‐1‐carboxylates.
ChemInform Abstract: Mild and Efficient Palladium/BrettPhos‐Catalyzed Methoxylation and Deuteriomethoxylation of Activated Aryl Bromides.
Authors: Rangarajan T. M. , Brahma Raju , Ayushee Ayushee , Prasad Ashok K. , Verma Akhilesh K. , Singh Rishi Pal 
Published: July 2015

AbstractA simple and efficient methoxylation reaction of activated aryl bromides to give the corresponding ethers is presented.
ChemInform Abstract: Formation of C(sp2)—S Bonds Through Decarboxylation of α‐Oxocarboxylic Acids with Disulfides or Thiophenols.
Authors: Rong Guangwei , Mao Jincheng , Liu Defu , Yan Hong , Zheng Yang , Chen Jie 
Published: July 2015

AbstractThe method offers an efficient approach to thiocarboxylates.
ChemInform Abstract: Pd‐Catalyzed Desulfitative and Denitrogenative Suzuki‐Type Reaction of Arylsulfonyl Hydrazides.
Authors: Zhong Shuangling , Sun Chenggang , Dou Sen , Liu Wencong 
Published: July 2015

AbstractThe utility of the scalable method is demonstrated by the one‐pot two‐step coupling of bromophenylsulfonohydrazides in order to prepare terphenyl derivatives such as (VIII).
ChemInform Abstract: Tf2NH‐Catalyzed, Highly Regio‐ and Stereo‐Selective Synthesis of Trisubstituted Alkenes and Indane Derivatives from Benzylic Alcohols and Alkenes.
Authors: Li Hai‐Hua 
Published: July 2015

AbstractThe reaction of benzylic alcohols with terminal 1,1‐disubstituted alkenes affords trisubstituted alkenes whereas the reaction of benzylic alcohols with 1,2‐disubstituted or 1,1,2‐trisubstituted alkenes provides indane derivatives.
ChemInform Abstract: Hypervalent‐Iodine‐Mediated Cascade Annulation of Diarylalkynes Forming Spiro Heterocycles under Metal‐Free Conditions.
Authors: Zhang Xiang , Yang Chao , Zhang‐Negrerie Daisy , Du Yunfei 
Published: July 2015

AbstractThis unprecedented process involves two sequential C—N/C—O bond formations and insertion of a carbonyl oxygen in a convenient one‐pot process to give a wide variety of spiro heterocycles.
ChemInform Abstract: Regioselective Synthesis of Nitrofuran Containing Novel Spiropyrrolidine Library Through 1,3‐Dipolar Cycloaddition Reactions.
Authors: Mallya Sahana , Kalluraya Balakrishna , Girisha K. S. 
Published: July 2015

AbstractA new class of functionalized spiropyrrolidines (IV) (10 examples) containing a nitrofuran moiety is formed with high stereo‐ and regioselectivity in good to excellent yields via 1,3‐dipolar cycloaddition of azomethine ylides derived from ninhydrin and sarcosine with various substituted chalcones (I).
ChemInform Abstract: Catalytic Activity of Reusable Nickel Oxide Nanoparticles in the Synthesis of Spirooxindoles.
Authors: Nasseri Mohammad Ali , Kamali Fateme , Zakerinasab Batol 
Published: July 2015

AbstractThe reaction between malonitrile, isatins, and 1,3‐dicarbonyl compounds including 1,3‐cyclohexadione, dimedone, and 4‐hydroxycoumarine provides indoline derivatives in high yields.
ChemInform Abstract: Regioselective One‐Pot Synthesis of New Unsymmetric Spiro Dihydrofurans in the Reaction of Mixed Two Different Cyclic β‐Dicarbonyl Compounds with BrCN and Aldehydes in the Presence of Et3N.
Authors: Noroozi Pesyan Nader , Shokr Alireza , Gharib Ali , Tunc Tuncay , Sahin Ertan 
Published: July 2015

AbstractOne‐pot reaction of cyclic β‐dicarbonyl with various aldehydes in the presence of cyanogen bromide and triethylamine leads to the selective and efficient formation of crossed new unsymmetrical spiro dihydrofurans at room temperature (no yields given).
ChemInform Abstract: Palladium‐Catalyzed Cycloisomerization and Aerobic Oxidative Cycloisomerization of Homoallenyl Amides: A Facile and Divergent Approach to 2‐Aminofurans.
Authors: Cheng Cungui , Liu Shuiyou , Zhu Gangguo 
Published: July 2015

AbstractVarious functionalized 2‐amino‐5‐alkylfurans and 2‐amino‐5‐formylfurans are selectively synthesized under mild and environmentally benign reaction conditions.