bluuebunny/crossref_metadata_2025_split huggingface dataset:
Thermomyces lanuginosus Lipase with Closed Lid Catalyzes Elimination of Acetic Acid from 11‐Acetyl‐Prostaglandin E2
Authors: Villo Ly , Metsala Andrus , Tamp Sven , Parve Jaan , Vallikivi Imre , Järving Ivar , Samel Nigulas , Lille Ülo , Pehk Tõnis , Parve Omar 
Published: June 2014

AbstractA lipase may catalyze either one or more of the three reactions of 11‐acetyl‐prostaglandin E2 in methanol‐containing reaction medium: esterification, deacetylation, and/or elimination. The catalytic performance depends on the lipase and on the methanol content. An increase in the methanol concentration in benzene from 5 % to 95 % leads to the exclusive switch of reactions from esterification to elimination catalyzed by Thermomyces lanuginosus lipase (TLL). To explain the switch, molecular dynamics simulations of solvation of TLL in benzene and in methanol were performed. Solvation in methanol leads to the closing of the lid. The repositioning of the oxyanion hole towards the catalytic triad blocks the catalysis of ester synthesis whereas enabling TLL to act as an acetyl‐β‐ketol eliminase. In benzene the lid is open, allowing esterification to occur. Docking analysis of 11‐acetyl‐prostaglandin E2 into the active site of the solvated TLL structures suggested the occurrence of reactions in accordance with the experiment.
A New Approach Towards Acid Catalysts with High Reactivity Based on Graphene Nanosheets
Authors: Wei Zuojun , Yang Yao , Hou Yaxin , Liu Yingxin , He Xiaodong , Deng Shuguang 
Published: June 2014

AbstractSolid acid catalysts of graphene oxide and sulfonated graphene oxide nanosheets have been prepared by using the modified Hummers and sulfonation methods. Physical characterization indicated that a number of functional groups such as COOH, OH, O, and SO3H were introduced onto the surfaces of the as‐synthesized nanosheets. The catalytic performance of the synthesized catalysts was evaluated in the hydrolysis of the glycosidic bond and Fischer esterification. The experimental results indicated that the catalytic activity of the sulfonated graphene oxide was superior to that of other solid acid catalysts with the same or higher acid strength and has also exceeded that of H2SO4 with 9.1 times of acid strength than that of the sulfonated graphene oxide. The high reactivity can be ascribed to the formation of hydrophobic cavities through the combination of graphene sheet and the oxygen‐containing groups on its surface, which may facilitate the catalyst to anchor with reactants and promote the attack of protons.
From In Situ towards In Operando Conditions: Scanning Tunneling Microscopy Study of Hydrogen Intercalation in Cu(111) during Hydrogen Evolution
Authors: Huynh Thi Mien Trung , Broekmann Peter 
Published: June 2014

AbstractWe used electrochemical scanning tunneling microscopy to study the intercalation of hydrogen into a Cu(111) model electrode under reactive (in operando) conditions. Hydrogen evolution causes hydrogen intermediates to migrate into the copper lattice as function of the applied potential and the resulting current density. This H‐inclusion is demonstrated to be reversible. The presence of subsurface hydrogen leads to a significant surface relaxation/reconstruction affecting both the geometric and electronic structure of the electrode surface.
The Role of Ionic Liquids in Hydrogen Storage
Authors: Sahler Sebastian , Sturm Sebastian , Kessler Michael T. , Prechtl Martin H. G. 
Published: June 2014

AbstractIonic liquid (IL) based H2 storage for H2 generation from NH3BH3 derivatives is shown. These systems promote H2 generation at low temperature, with good reaction rates and high total H2 yields. The effects of ILs and the H2 yield in correlation with the basicity, the cations of the ILs, and the role of carbenes are discussed. Furthermore, mechanistic findings on the dehydrogenation are described. IL material blends are competitive with conventional H2 storage materials with experimental efficiencies of at least 6.5 wt % H2.
Preparation of a Sulfo‐Group‐Containing Rod‐Like Polysilsesquioxane with a Hexagonally Stacked Structure and Its Proton Conductivity
Authors: Kaneko Yoshiro , Toyodome Hisaya , Mizumo Tomonobu , Shikinaka Kazuhiro , Iyi Nobuo 
Published: June 2014

AbstractA sulfo‐group‐containing rod‐like polysilsesquioxane with a hexagonally stacked structure (PSQ‐SO3H) was successfully prepared by oxidation and hydrolytic polycondensation of 3‐mercaptopropyltrimethoxysilane (MPTMS) in a mixed aqueous solution of NaOH and H2O2. The X‐ray diffraction pattern of the PSQ‐SO3H film exhibited three diffraction peaks with a d‐value ratio of 1:1/√3:1/2, indicating the formation of a hexagonally stacked structure. In addition, the transmission electron microscopy image of PSQ‐SO3H exhibited a striped pattern, indicating that the rod‐like PSQs were stacked in a parallel fashion. The presence of ionic side‐chains composed of the sulfonate anions and sodium cations during the hydrolytic polycondensation of MPTMS was found to be essential for the formation of this regularly structured PSQ. Finally, the proton conductivity of the PSQ‐SO3H film, determined by using complex impedance spectroscopy, was relatively high (>10−2 S cm−1) at 80 °C and 30–90 % relative humidity.
Synthesis and Surface‐Spectroscopic Characterization of Photoisomerizable glyco‐SAMs on Au(111)
Authors: Chandrasekaran Vijayanand , Jacob Hanne , Petersen Finn , Kathirvel Ketheeswari , Tuczek Felix , Lindhorst Thisbe K. 
Published: June 2014

AbstractPhotoisomerizable glyco‐SAMs (self‐assembled monolayers), utilizing synthetic azobenzene glycoside derivatives were fabricated. The ultimate goal of this project is to assay the influence of the 3D arrangement of sugar ligands on cell adhesion, and eventually make cell adhesion photoswitchable. However, it is a prerequisite for any biological study on the spatial conditions of carbohydrate recognition, that photoisomerization of the surface molecules can be verified. Here, we employed IRRAS and XPS to spectroscopically characterize glyco‐SAMs. In particular and unprecedented to date, we prove reversible E→Z→E isomerization of azobenzene glycoside‐terminated SAMs.
Salicylato Titanocene Complexes as Cooperative Organometallic Lewis Acid and Brønsted Acid Catalysts for Three‐Component Mannich Reactions
Authors: Wu Ya , Chen Chun , Jia Gai , Zhu Xuyang , Sun Huaming , Zhang Guofang , Zhang Weiqiang , Gao Ziwei 
Published: June 2014

AbstractA binary acid system has been developed that features an air‐stable organometallic precursor, titanocene dichloride, and simple organic cooperative Brønsted acids, which allowed for mild and highly efficient Mannich reactions of both aryl and alkyl ketones with excellent yields and satisfactory diastereoselectivity. Mechanistic studies, including 1H NMR titration, X‐ray structure analyses as well as isolation of catalytically active species, elucidated the dramatic synergistic effects of this new binary acid system.
Silica‐Encapsulated Gd3+‐Aggregated Gold Nanoclusters for In Vitro and In Vivo Multimodal Cancer Imaging
Authors: Wu Xiaotong , Li Chunxia , Liao Suchan , Li Lu , Wang Tingting , Su Zhongmin , Wang Chungang , Zhao Jihong , Sui Changping , Lin Jun 
Published: June 2014

AbstractGd3+‐aggregated gold nanoclusters (AuNCs) encapsulated by silica shell (Gd3+‐A‐AuNCs@SiO2 NPs) were strategically designed and prepared. The as‐prepared nanoparticles exhibit aggregation‐enhanced fluorescence (AEF), with an intensity that is up to 3.8 times that of discrete AuNCs. The clusters served as novel nanoprobes for in vitro and in vivo multimodal (fluorescence, magnetic resonance, and computed X‐ray tomography) cancer imaging
Metal‐Free One‐Pot Synthesis of Benzofurans
Authors: Ghosh Raju , Stridfeldt Elin , Olofsson Berit 
Published: June 2014

AbstractEthyl acetohydroxamate was efficiently arylated with diaryliodonium salts at room temperature under transition‐metal‐free conditions. The obtained O‐arylated products were reacted in situ with ketones under acidic conditions to yield substituted benzo[b]furans through oxime formation, [3,3]‐rearrangement, and cyclization in a fast and operationally simple one‐pot fashion without using excess reagents. Alternatively, the O‐arylated products could be isolated or transformed in situ to aryloxyamines or O‐arylaldoximes. The methodology was applied to the synthesis of Stemofuran A and the formal syntheses of Coumestan, Eupomatenoid 6, and (+)‐machaeriol B.
ChemInform Abstract: Ni3Cl2.1(OH)3.9·4H2O, the Ni Analogue to Mg3Cl2(OH)4·4H2O.
Authors: Bette Sebastian , Dinnebier Robert E. , Freyer Daniela 
Published: June 2014

AbstractNi3Cl2.1(OH)3.9·4H2O is obtained from aqueous solutions of NiCl2 and NaOH at 40 °C for three months, and characterized by powder XRD, SEM, and IR spectroscopy.
ChemInform Abstract: BaRu3Sn6 — A Tin‐Rich Stannide with Ba@Sn8 and Ru@Sn7 Building Units.
Authors: Schwickert Christian , Poettgen Rainer 
Published: June 2014

AbstractBaRh3Sn6 is prepared by melting of the elements (sealed Ta tube, 1300 K, 4 h, slow cooling).
ChemInform Abstract: Amorphized ZnSb‐Based Composite Anodes for High‐Performance Li‐Ion Batteries.
Authors: Park Min‐Gu , Lee Churl Kyoung , Park Cheol‐Min 
Published: June 2014

AbstractAmorphous ZnSb/MgO/C (I) and ZnSb/Al2O3/C (II) nanocomposite anodes are prepared via high‐energy ball milling of ZnO and Sb2O3, Mg or Al, and C in molar ratios of 2:1:5 and 6:3:10 under Ar, respectively.
ChemInform Abstract: Oxonium Ions Substituting Cesium Ions in the Structure of the New High‐Pressure Borate HP‐Cs1‐x(H3O)xB3O5 (x = 0.5—0.7).
Authors: Sohr Gerhard , Neumair Stephanie C. , Heymann Gunter , Wurst Klaus , Schmedt auf der Guenne Joern , Huppertz Hubert 
Published: June 2014

AbstractThe new title compound is synthesized in a Walker‐type multianvil apparatus from a finely ground mixture of a precursor of nominal composition “Cs4B6O11” and H3BO3 (6 GPa, 900 °C, 10 min).
ChemInform Abstract: Binary Lithium Indides Li22‐xIn8+x (x = 0.1), Li11‐xIn4+x (x = 1.05), and Li10‐xIn2+x (x = 1.59) with Clusters.
Authors: Chumak Ihor , Pavlyuk Volodymyr , Ehrenberg Helmut 
Published: June 2014

AbstractThe new title compounds are prepared from the elements (Ta crucibles, 1100 °C, 15 min followed by annealing at 150 °C for one month) and characterized by single crystal XRD, density measurements, and TB‐LMTO‐ASA electronic structure calculations.
ChemInform Abstract: Single‐Crystal Growth and Size Control of Three Novel Polar Intermetallics: Eu2.94(2)Ca6.06In8Ge8, Eu3.13(2)Ca5.87In8Ge8, and Sr3.23(3)Ca5.77In8Ge8 with Crystal Structure, Chemical Bonding, and Magnetism Studies.
Authors: Woo Hyein , Nam Gnu , Jang Eunyoung , Kim Jin , Lee Yunho , Ahn Kyunghan , You Tae‐Soo 
Published: June 2014

AbstractThe new polar title compounds are prepared from the elements using molten In as a reactive flux (alumina or zirconia crucible, 960 °C, 20 h).
ChemInform Abstract: The First 2‐D Organic—Inorganic Hybrid Containing Two Types of Hexa‐CuII Sandwiched Polyoxotungstate Units and Mixed Amines.
Authors: Li Rui‐Qin , Li Yan‐Ying , Yang Bai‐Feng , He Huan , Zhao Jun‐Wei , Yang Guo‐Yu 
Published: June 2014

AbstractThe new two‐dimensional hexa‐CuII sandwiched polyoxotungstate (III) with mixed organoamine ligands crystallizes in the triclinic space group P$\bar 1$ with Z = 1 (single crystal XRD).
ChemInform Abstract: Selective Synthesis of Cu2SnSe3 and Cu2SnSe4 Nanocrystals.
Authors: Ge Zhen‐Hua , Salvador James R. , Nolas George S. 
Published: June 2014

AbstractSelective preparation of Cu2SnSe3 (I) and Cu2SnSe4 (II) nanocrystals is achieved by a one‐step solvothermal method using CuCl or CuCl2, SnCl2 or SnCl4, and SeO2 in ethylene glycol as solvent and hydrazine as reducing agent (autoclave, 180 °C, 12 h).
ChemInform Abstract: Crystal Growth, Structural, Electrical, and Magnetic Properties of Mixed‐Valent Compounds YbOs2Al10 and LuOs2Al10.
Authors: Wang Hai , et al. et al. 
Published: June 2014

AbstractSingle crystals of the title compounds are prepared by an aluminium self‐flux method from mixtures of Yb or Lu, Os, and Al in a molar ratio of 1:2:30 (alumina ampule, 1150 °C, 48 h).
ChemInform Abstract: Control of the Iridium Oxidation State in the Hollandite Iridate Solid Solution K1‐xIr4O8.
Authors: Talanov Artem , Phelan W. Adam , Kelly Zachary A. , Siegler Maxime A. , McQueen Tyrel M. 
Published: June 2014

AbstractPolycrystalline pellets and single crystals of KIr4O8 are prepared from mixtures of K2CO3 and Ir black with a 1:2 ratio of K/Ir (alumina crucibles, 1123—1273 K, 4—15 h).
ChemInform Abstract: Chiral Broensted Acid‐Catalyzed Enantioselective Addition of Indoles to Ketimines.
Authors: Kano Taichi , Takechi Ryosuke , Kobayashi Ryohei , Maruoka Keiji 
Published: June 2014

AbstractThe title reaction is catalyzed by a chiral phosphoric acid and represents a rare example of an addition reaction to a non‐aromatic ketimine (II).
ChemInform Abstract: Rh(I)‐Catalyzed Intramolecular Carbonylative [2 + 2 + 1] Cycloaddition Reaction: Preparation of Bicyclo[5.3.0]decadienones with Substituted Cyclopentenone Frameworks.
Authors: Mukai Chisato , Takahashi Yasuhito , Ogawa Kumiko , Hayashi Yujiro , Inagaki Fuyuhiko 
Published: June 2014

AbstractThe Rh(I)‐catalyzed carbonylative Pauson—Khand‐type [2 + 2 + 1] cycloaddition of bis(allene)s with substituent at the allenic terminus produces 8‐substituted bicyclo[5.3.0]decadienone frameworks in good yields.
ChemInform Abstract: Synthesis and Antimicrobial Activities of Some Triazole, Thiadiazole, and Oxadiazole Substituted Coumarins.
Authors: Reddy K. Rajasekhar , Mamatha R. , Babu M. S. Surendra , Shiva Kumar K. , Jayaveera K. N. , Narayanaswamy G. 
Published: June 2014

AbstractThiosemicarbazides undergo cyclization reactions with different reagents using conventional heating, microwave irradiation and grinding as synthetic methods.
ChemInform Abstract: Rhodium‐Catalyzed Regioselective Opening of Vinyl Epoxides with Et3N·3HF Reagent — Formation of Allylic Fluorohydrins.
Authors: Zhang Qi , Nguyen Hien M. 
Published: June 2014

AbstractA Rh‐catalyst efficiently facilitates the regioselective ring‐opening of a variety of vinyl epoxides (I) and (IV) with Et3N·HF to provide the corresponding allylic fluorohydrins (III) and (V), resp., in moderate to good yields and with high regioselectivity.
ChemInform Abstract: Transfer Hydrogenation of Ketones Catalyzed by Surface‐Active Ruthenium and Rhodium Complexes in Water.
Authors: Kalsin Alexander M. , Peganova Tat'yana A. , Novikov Valentin V. , Zhamoytina Alexandra I. , Gonsalvi Luca , Peruzzini Maurizio 
Published: June 2014

AbstractSeveral rhodium and ruthenium catalysts are investigated for this model reaction.
ChemInform Abstract: Nickel‐Catalyzed Triarylamine Synthesis: Synthetic and Mechanistic Aspects.
Authors: Li Xin‐Le , Wu Wei , Fan Xin‐Heng , Yang Lian‐Ming 
Published: June 2014

AbstractTriarylamines are prepared from aryl chlorides and diarylamines in the presence of Ni‐catalyst and iPrMgCl in moderate to good yields.
ChemInform Abstract: Improved Negishi Cross‐Coupling Reactions of an Organozinc Reagent Derived from L‐Aspartic Acid with Monohalopyridines.
Authors: Usuki Toyonobu , Yanuma Hiroto , Hayashi Takahiro , Yamada Haruka , Suzuki Noriyuki , Masuyama Yoshiro 
Published: June 2014

AbstractThe palladium‐catalyzed Negishi cross‐coupling reaction is improved by using Pd2(dba)3 and P(2‐furyl)3 as the catalyst system and by removing both the undesired Zn(II) species and the insoluble Zn metal from the activated organozinc reagent via centrifugation.
ChemInform Abstract: Copper‐Catalyzed Csp3—O Cross‐Coupling of Unactivated Alkyl Halides with Organic Peroxides.
Authors: Chen Huan‐Huan , Wang Guang‐Zu , Han Jin , Xu Meng‐Yu , Zhao Yong‐Qiang , Xu Hua‐Jian 
Published: June 2014

AbstractA novel Cu‐catalyzed coupling of aroyl peroxides with haloalkanes is described to produce benzoic acid esters.
ChemInform Abstract: Palladium Catalyzed Aryl(alkyl)thiolation of Unactivated Arenes.
Authors: Saravanan Perumal , Anbarasan Pazhamalai 
Published: June 2014

AbstractA general palladium‐catalyzed aryl(alkyl)thiolation of various substituted unactivated arenes is accomplished for the synthesis of diverse unsymmetrical diaryl(alkyl) sulfides employing an electrophilic sulfur reagent derived from succinimide.
ChemInform Abstract: Tripod Immobilization of Triphenylphosphane on a Silica‐Gel Surface to Enable Selective Mono‐Ligation to Palladium: Application to Suzuki—Miyaura Cross‐Coupling Reactions with Chloroarenes.
Authors: Iwai Tomohiro , Tanaka Ryotaro , Harada Tomoya , Sawamura Masaya 
Published: June 2014

AbstractThe new heterogeneous phosphane (POS), which is tripodally immobilized on a silica surface, selectively forms a 1:1 palladium‐ phosphane molecule.
ChemInform Abstract: Polycationic Ligands in Gold Catalysis: Synthesis and Applications of Extremely π‐Acidic Catalysts.
Authors: Carreras Javier , Gopakumar Gopinadhanpillai , Gu Lianghu , Gimeno Ana , Linowski Pawel , Petuskova Jekaterina , Thiel Walter , Alcarazo Manuel 
Published: June 2014

AbstractApplication of this method is exemplarily demonstrated by the synthesis of Marylaurencinol A (IX).
ChemInform Abstract: p‐tert‐Butylcalix[8]arene Catalyzed Synthesis of 3,5‐Dinitrothiophene Scaffolds: Antiproliferative Effect of Some Representative Compounds on Selective Anticancer Cell Lines.
Authors: Sarkar Piyali , Maiti Samares , Ghosh Krishnendu , (Bandyopadhyay) Sumita Sengupta , Butcher Ray J. , Mukhopadhyay Chhanda 
Published: June 2014

AbstractOptimized reaction conditions with p‐tert‐butylcalix[8]arene as the catalyst allow the SNAr reactions of thiophene derivative (I) with amines or thiols in water to give the corresponding 2‐substituted derivatives in good yields.
ChemInform Abstract: Synthesis of Polysubstituted Pyrroles via [3 + 2]‐Annulation of Aziridines and β‐Nitroalkenes under Aerobic Conditions.
Authors: Wang Shaoyin , Zhu Xiancui , Chai Zhuo , Wang Shaowu 
Published: June 2014

AbstractSubstituted pyrroles are prepared from 2‐benzoyl‐3‐phenyl aziridines and β‐nitrostyrenes in good yields.
ChemInform Abstract: Water Promoted C—C Bond Cleavage: Facile Synthesis of 3,3‐Bipyrrole Derivatives from Dienones and Tosylmethyl Isocyanide (TosMIC).
Authors: Wang Rong , Wang Shun‐Yi , Ji Shun‐Jun 
Published: June 2014

AbstractThis synthesis of 3,3‐bipyrroles proceeds via a van Leusen′s pyrrole synthesis followed by water mediated decarboxylation.
ChemInform Abstract: Ligand‐Enabled Multiple Absolute Stereocontrol in Metal‐Catalyzed Cycloaddition for Construction of Contiguous All‐Carbon Quaternary Stereocenters.
Authors: Ohmatsu Kohsuke , Imagawa Naomichi , Ooi Takashi 
Published: June 2014

AbstractThe new ammonium phosphine (R)‐(AMI) efficiently promotes the Pd‐catalyzed [3 + 2] annulation of oxazolidinones of type (I) with di‐ and trisubstituted alkenes.
ChemInform Abstract: Rhodium‐Catalyzed Three‐Component Reaction of 3‐Diazooxindoles with Indoles and Isatin‐Derived Ketimines: A Facile and Versatile Approach to Functionalized 3,3′,3′′‐Trisindoles.
Authors: Mei Liang‐Yong , Tang Xiang‐Ying , Shi Min 
Published: June 2014

AbstractThe new method is applicable to diversely substituted substrates.
ChemInform Abstract: Copper‐Catalyzed Decarboxylative C3‐Acylation of Free (N—H) Indoles with α‐Oxocarboxylic Acids.
Authors: Wang Cuiping , Wang Shaoyan , Li Hua , Yan Jingbo , Chi Haijun , Chen Xichao , Zhang Zhiqiang 
Published: June 2014

AbstractA wide range of different substituted 3‐acylindoles are obtained without strict exclusion of moisture.
ChemInform Abstract: Synthesis of Polysubstituted Pyrroles via Ag(I)‐Mediated Conjugate Addition and Cyclization Reaction of Terminal Alkynes with Amines.
Authors: Chong Qinglei , Xin Xiaoyi , Wang Chunxiang , Wu Fan , Wan Boshun 
Published: June 2014

AbstractThe reaction is very sensitive to steric [cf.
ChemInform Abstract: Ruthenium Catalyzed Desymmetrization of Diazabicyclic Olefins to Access Heteroaryl Substituted Cyclopentenes Through C—H Activation of Phenylazoles.
Authors: Aparna P. S. , Prabha B. , Prakash Praveen , Jijy E. , Luxmi Varma R. , Radhakrishnan K. V. 
Published: June 2014

AbstractTypically mono‐cyclopentyl functionalized products are obtained but 2‐phenyl benzimidazole (VI) furnishes the corresponding bis‐cyclopentenyl derivatives under similar conditions.
ChemInform Abstract: Ring Contraction of 1,3‐Diphenylbenzo[1,2,4]triazinyl Radicals to 1,2‐Diphenylbenzimidazoles.
Authors: Berezin Andrey A. , Koutentis Panayiotis A. 
Published: June 2014

AbstractTreatment of benzotriazinyl radicals (I) and (III) with Zn powder in acetic acid leads to a reductive ring contraction to afford the N‐phenylbenzimidazoles (II) and (IV), respectively.
ChemInform Abstract: Pd(PPh3)4‐Catalyzed Direct ortho‐Fluorination of 2‐Arylbenzothiazoles with an Electrophilic Fluoride N‐Fluorobenzenesulfonimide (NFSI).
Authors: Ding Qiuping , Ye Changqing , Pu Shouzhi , Cao Banpeng 
Published: June 2014

AbstractThe halogenation of 2‐furan benzothiazole fails.
ChemInform Abstract: Programmed Synthesis of Arylthiazoles Through Sequential C—H Couplings.
Authors: Tani Satoshi , Uehara Takahiro N. , Yamaguchi Junichiro , Itami Kenichiro 
Published: June 2014

AbstractA programmed synthesis of all substitution patterns of arylthiazoles (2‐aryl, 4‐aryl, 5‐aryl, 2,4‐diaryl, 2,5‐diaryl, 4,5‐diaryl, and 2,4,5‐triaryl‐derivatives) via sequential C—H coupling reactions is described.
ChemInform Abstract: Arylation of Aryl Chlorides, a Convenient Method for the Synthesis of New Potential Triazolic Fungicides.
Authors: Herrera Cano Natividad , Santiago Ana N. 
Published: June 2014

AbstractThe Stille cross‐coupling reaction and the Suzuki reaction are used to synthesize aryl derivatives of triadimefon (I) and cyproconazole (VI).
ChemInform Abstract: Synthesis of Polyfunctional Triethoxysilanes by ′Click Silylation′.
Authors: Singh Gurjaspreet , Mangat Satinderpal Singh , Singh Jandeep , Arora Aanchal , Sharma Ramesh K. 
Published: June 2014

AbstractThe Cu‐catalyzed 1,3‐dipolar cycloaddition of γ‐azidopropyltriethoxysilane with a wide range of alkynes or bis‐alkynes to give 1,2,3‐triazoles (III) or bis‐triazoles (V) in good to excellent yields is developed.
ChemInform Abstract: Synthesis of Tetracyclic Chromenones via Platinum(II) Chloride Catalyzed Cascade Cyclization of Enediyne—Enones.
Authors: Sivaraman Mahalingam , Perumal Paramasivan T. 
Published: June 2014

AbstractA mechanism for the regioselective 6‐endo‐dig cyclization is also proposed.
ChemInform Abstract: Single Pot Diastereoselective Synthesis of Six Membered Cyclic (E)‐endo‐Aldonitrones via Intramolecular Cyclization of ω‐Alkenyl Oximes.
Authors: Mehra Vishu , Kumar Vipan 
Published: June 2014

AbstractTandem condensation‐intramolecular cyclization of 2‐azetidinones (I) with hydroxylamine results in an efficient synthesis of six‐membered cyclic (E)‐endo‐aldonitrones.
ChemInform Abstract: Pd‐Catalyzed Assembly of Phenanthridines from Aryl Ketone O‐Acetyloximes and Arynes Through C—H Bond Activation.
Authors: Tang Chen‐Yu , Wu Xin‐Yan , Sha Feng , Zhang Fei , Li Hao 
Published: June 2014

AbstractPhenanthridines are prepared from various O‐acetyloximes and in situ generated arynes through a C‐H bond activation/insertion/cyclization/elimination sequence.
ChemInform Abstract: Phosphine‐Catalyzed [4 + 2] Cycloaddition of Sulfamate‐Derived Cyclic Imines with Allenoates: Synthesis of Sulfamate‐Fused Tetrahydropyridines.
Authors: Yu Hao , Zhang Lei , Li Zhen , Liu Honglei , Wang Bo , Xiao Yumei , Guo Hongchao 
Published: June 2014

AbstractA [4 + 2] cycloaddition of sulfamate derived cyclic imines with a series of allenoates is developed using diphenyl(propyl)phosphane as the catalyst.
ChemInform Abstract: New Tetracyclic 1,4‐Oxazepines Constructed via Practically Simple Tandem Condensation Strategy from Readily Available Synthons.
Authors: Sapegin Alexander V. , Kalinin Stanislav A. , Smirnov Alexey V. , Dorogov Mikhail V. , Krasavin Mikhail 
Published: June 2014

AbstractThe process consists of nucleophilic aromatic substitution, Smiles rearrangement, and denitrocyclization.