bluuebunny/crossref_metadata_2025_split huggingface dataset:
High‐throughput screening for the development of a monoclonal antibody affinity precipitation step using ELP‐z stimuli responsive biopolymers
Authors: Sheth Rahul D. , Madan Bhawna , Chen Wilfred , Cramer Steven M. 
Published: April 2013

ABSTRACTThis study provides a detailed investigation into the performance of a stimuli responsive ELP‐Z based process for monoclonal antibody (mAb) affinity precipitation. A multidimensional high‐throughput screening (HTS) protocol was developed and employed to investigate the effects of a variety of operating conditions on mAb yield and aggregation during the process. Precipitation efficiency of ELP‐Z in the absence of mAb was first determined as a function of temperature and sodium sulfate concentration and conditions producing high yields were identified. HTS was then employed to determine appropriate conditions for the initial capture and co‐precipitation of mAbs at high yields using ELP‐Z. mAb elution from ELP‐Z was then examined using HTS and the mAb yields and aggregate content of the overall process were determined. It was observed that mAb aggregation was sensitive primarily to the elution conditions and that this behavior was antibody specific and a strong function of operating temperature and elution pH. Importantly, for both mAbs examined in this study, the results indicated that room temperature operation and appropriate elution pH could be readily employed to produce both high mAb yields and low aggregate content using this approach. This study demonstrates the ability of ELP‐Z based affinity precipitation for mAb purification and shows that HTS can be successfully employed to rapidly develop a robust and high yield process. Biotechnol. Bioeng. 2013;110: 2664–2676. © 2013 Wiley Periodicals, Inc.
Shearing of biofilms enables selective layer based microbial sampling and analysis
Authors: Lu Yang , Slater Frances , Bello‐Mendoza Ricardo , Batstone Damien J. 
Published: April 2013

ABSTRACTGranules are large, self‐supporting biofilms that form naturally in high‐rate anaerobic treatment systems and are extremely important to reactor functionality. Granules exhibit functional and phylogenetic layering, interesting to both scientists and technologists. Until now, it has only been possible to analyze layering through sectioning and microscopic analysis with fluorescent in situ hybridization, or to analyze the whole granule through DNA extraction and microbial community profiling methods. This means different functional and spatial layers cannot be analyzed separately, including next generation sequencing techniques, such as pyrotag sequencing. In this work, we describe a method to remove microbes selectively from successive spatial layers through hydraulic shearing and demonstrate its application on anaerobic granules of three different types (VFA‐, carbohydrate‐, protein‐fed) in size ranges 0.6–2 mm. Outer layers in particular could be selectively sheared as confirmed by FISH. TRFLP was used as an example bulk DNA method on selectively sheared fractions. A shift in dominant population was found from presumptive acidogens (such as Bacteroidetes and Anaerolinea) in outer layers to syntrophs (such as Syntrophomonas and Geobacter) in inner layers, with progressive changes through the depth. The strength of the shear‐bulk molecular method over FISH was that a deeper phylogenetic profile could be obtained, even with TRFLP, and that prior knowledge of the community is not required. Biotechnol. Bioeng. 2013;110: 2600–2605. © 2013 Wiley Periodicals, Inc.
Spatial distribution of bacterial communities on volumetric and planar anodes in single‐chamber air‐cathode microbial fuel cells
Authors: Vargas Ignacio T. , Albert Istvan U. , Regan John M. 
Published: April 2013

ABSTRACTPyrosequencing was used to characterize bacterial communities in air‐cathode microbial fuel cells across a volumetric (graphite fiber brush) and a planar (carbon cloth) anode, where different physical and chemical gradients would be expected associated with the distance between anode location and the air cathode. As expected, the stable operational voltage and the coulombic efficiency (CE) were higher for the volumetric anode than the planar anode (0.57 V and CE = 22% vs. 0.51 V and CE = 12%). The genus Geobacter was the only known exoelectrogen among the observed dominant groups, comprising 57 ± 4% of recovered sequences for the brush and 27 ± 5% for the carbon‐cloth anode. While the bacterial communities differed between the two anode materials, results showed that Geobacter spp. and other dominant bacterial groups were homogenously distributed across both planar and volumetric anodes. This lends support to previous community analysis interpretations based on a single biofilm sampling location in these systems. Biotechnol. Bioeng. 2013;110: 3059–3062. © 2013 Wiley Periodicals, Inc.
Normal and polar‐organic‐phase high‐performance liquid chromatographic enantioresolution of omeprazole, rabeprazole, lansoprazole and pantoprazole using monochloro‐methylated cellulose‐based chiral stationary phase and determination of dexrabeprazole
Authors: Dixit Shuchi , Dubey Rituraj , Bhushan Ravi 
Published: April 2013

ABSTRACTEnantioresolution of four anti‐ulcer drugs (chiral sulfoxides), namely, omeprazole, rabeprazole, lansoprazole and pantoprazole, was carried out by high‐performance liquid chromatography using a polysaccharide‐based chiral stationary phase consisting of monochloromethylated cellulose (Lux cellulose‐2) under normal and polar‐organic‐phase conditions with ultraviolet detection at 285 nm. The method was validated for linearity, accuracy, precision, robustness and limit of detection. The optimized enantioresolution method was compared for both the elution modes. The optimized method was further utilized to check the enantiomeric purity of dexrabeprazole. Copyright © 2013 John Wiley & Sons, Ltd.
Excipients‐Induced Salt‐to‐Free Base Phase Transformation
Authors: Qu H. , Serrat M. C. R. , Christensen L. P. , Rantanen J. 
Published: April 2013

AbstractThe mechanism of the salt‐to‐free form drug transformation was explored by investigating the pH‐solubility profiles of a model drug in a salt form and the nucleation of the free base from the salt solution when its pH was increasing. The transformation of the salt to the free base during wet massing in the presence of pharmaceutical excipients with different pH was studied. The nucleation of the free base occurred when the pH of the salt solution reached a certain level pHmetastable, which was related to the free energy penalty associated with the creation of a new solid phase. The nucleation of the free base happened readily and thus, the salt‐to‐free base transformation occurred rapidly during wet massing with the excipients with a pH above the pHmetastable. These results can support robust formulation design of solid dosage forms containing salts by optimal excipient selection.
ChemInform Abstract: X2Y2 Isomers: Tuning Structure and Relative Stability Through Electronegativity Differences (X: H, Li, Na, F, Cl, Br, I; Y: O, S, Se, Te).
Authors: El‐Hamdi Majid , Poater Jordi , Bickelhaupt F. Matthias , Sola Miquel 
Published: April 2013

AbstractDensity functional calculations on XYYX and X2YY isomers of the X2Y2 species (X: H, Li, Na, F, Cl, Br, I; Y: O, S, Se, Te) show that the XYYX isomers are more stable than the X2YY forms except for X = F and Y = S and Te, for which the F2SS and F2TeTe isomers are slightly more stable.
ChemInform Abstract: Ba[Co3(VO4)2(OH)2] with a Regular Kagome Lattice.
Authors: Dordevic Tamara , Karanovic Ljiljana 
Published: April 2013

AbstractSingle crystals of the layered title compound are hydrothermally prepared from a mixture of Ba(OH)2, Co, and V2O5 in H2O (Teflon vessel, pH 12, 423 K, 120 h).
ChemInform Abstract: Synthesis, Structural Characterization, and Electrical Properties of New Oxygen‐Deficient Tetragonal Tungsten Bronzes Ba2NdTi2+xNb3‐xO15‐x/2.
Authors: Prades Marta , Maso Nahum , Beltran Hector , Cordoncillo Eloisa , West Anthony R. 
Published: April 2013

AbstractThe title compounds (0 ≤ x ≤ 3) are solvothermally synthesized from Ba(OAc)2, Nd(O‐iPr)3, Ti(O‐iPr)4, and Nb(O‐Et)5 (conditions not given) followed by firing at 1100—1300 °C for 2 h in air.
ChemInform Abstract: Copper Scandium Zirconium Phosphate: Occupancy of the M1 and M2 Sites in the Temperature Range 100—300 K.
Authors: Bond Andrew D. , Warner Terence E. 
Published: April 2013

AbstractThe Cu+ solid electrolyte Cu2ScZr(PO4)3 is prepared by solid state reaction of a stoichiometric mixture of CuO, Sc2O3, Zr2O3, and NH4H2PO4 (1.
ChemInform Abstract: A New Family of Lanthanide Borate Halides with Unusual Coordination and a New Neodymium‐Containing Cationic Framework.
Authors: Polinski Matthew J. , Alekseev Evgeny V. , Darling Victoria R. , Cross Justin N. , Depmeier Wulf , Albrecht‐Schmitt Thomas E. 
Published: April 2013

AbstractLa[B7O10(OH)3(H2O)Br] (I), Ln[B6O9(OH)2(H2O)2Br] ·0.5H2O (II) (Ln: Ce, Pr), Nd2 [B12O17.5(OH)5 (H2O)4Br1.5] Br0.5·H2O (III), Sm4[B18O25(OH)13Br3] (IV), and Ln[B7O11(OH)(H2O)I] (V) (Ln: La, Ce, Pr, Nd, Sm) are synthesized from the respective lanthanide oxides, H3BO3, and HBr or HI (autoclave, 200—240 °C, 5—7 d, 60—85% yields).
ChemInform Abstract: Pb8M(BO3)6 (M: Zn, Cd): Two New Isostructural Lead Borates Compounds with Two‐Dimensional ∞[Pb8B6O18]2‐ Layer Structure.
Authors: Huang Zhenjun , Pan Shilie , Yang Zhihua , Yu Hongwei , Dong Xiaoyu , Zhao Wenwu , Dong Lingyun , Su Xin 
Published: April 2013

AbstractSingle crystals of the title compounds are prepared from mixtures of PbO, MO (M: Cd, Zn), and H3BO3 using excess PbO as self‐flux (Pt crucible, 450 °C, 8 h).
ChemInform Abstract: Crystal Growth, Structural Characterization, and Magnetic Properties of New Uranium(IV) Containing Mixed Metal Oxalates: Na2U2M(C2O4)6 (H2O)4 (M: Mn2+, Fe2+, Co2+, and Zn2+).
Authors: Yeon Jeongho , Smith Mark D. , Sefat Athena S. , zur Loye Hans‐Conrad 
Published: April 2013

AbstractThe new title oxalates are synthesized via a hydrothermal route employing U(C2O4)2(H2O)6 as the UIV precursor and the respective metal chlorides MCl2 (autoclave, 150 °C, 2 d).
ChemInform Abstract: Homologous Series of Layered Perovskites An+1BnO3n‐1Cl: Crystal and Magnetic Structure of a New Oxychloride Pb4BiFe4O11Cl.
Authors: Batuk Maria , Batuk Dmitry , Tsirlin Alexander A. , Rozova Marina G. , Antipov Evgeny V. , Hadermann Joke , Van Tendeloo Gustaaf 
Published: April 2013

AbstractSamples of Pb4BiFe4O11Cl are prepared by solid state reaction of PbO, PbCl2, Bi2O3, and Fe2O3 (5 mol% excess PbO; Al crucible, sealed quartz tube, 1700 °C, 3 h, 2800 °C, 8 h).
ChemInform Abstract: Organocatalytic Racemization of α‐Aryl Propionates in the Presence of Water.
Authors: Alfaro Blasco Maria , Groeger Harald 
Published: April 2013

AbstractComplete racemization of (S)‐(I) and (S)‐(II) can be achieved using 1,5,7‐triazabicyclo[4.4.0]dec‐5‐ene (TBD) as base in methyl‐ or ethyl tert‐butyl ether (MTBE) or (ETBE).
ChemInform Abstract: Stereoselective Titanium‐Mediated Aldol Reactions of α‐Benzyloxy Methyl Ketones.
Authors: Pellicena Miquel , Solsona Joan G. , Romea Pedro , Urpi Felix 
Published: April 2013

AbstractThe titanium‐mediated aldol reaction of chiral ketones is sensitive to the titanium Lewis acid used in the enolization step and represents a new approach to the substrate‐controlled acetate aldol reaction.
ChemInform Abstract: Gold‐Catalyzed Mannich Addition Reactions of 1,3‐Dicarbonyl Compounds with N‐Protected Imines.
Authors: Delgado‐Rebollo Manuela , Moreno Rocio , Fructos Manuel R. , Prieto Auxiliadora 
Published: April 2013

AbstractThis is the first gold‐catalyzed variant of this reaction.
ChemInform Abstract: Palladium‐Catalyzed Intramolecular Direct Arylation of 2‐Bromobenzenesulfonic Acid Derivatives.
Authors: Bheeter Charles Beromeo , Bera Jitendra K. , Doucet Henri 
Published: April 2013

AbstractThe phosphine‐free palladium‐catalyzed cyclization of bromobenzenesulfonic acid phenyl esters and bromosulfonamides is presented.
ChemInform Abstract: Direct Synthesis of Methylene‐1,2‐dichalcogenolanes via Radical [3 + 2] Cycloaddition of Methylenecyclopropanes with Elemental Chalcogens.
Authors: Yu Lei , Wu Yulan , Chen Tian , Pan Yi , Xu Qing 
Published: April 2013

AbstractCycloaddition can be performed either in DCE or under neat conditions to afford the title compounds which are otherwise difficult to access.
ChemInform Abstract: From Diols to Lactones under Aerobic Conditions Using a Laccase/TEMPO Catalytic System in Aqueous Medium.
Authors: Diaz‐Rodriguez Alba , Lavandera Ivan , Kanbak‐Aksu Seda , Sheldon Roger A. , Gotor Vicente , Gotor‐Fernandez Vicente 
Published: April 2013

AbstractThe laccase/TEMPO catalyzed aerobic oxidation of 1,5‐diols to lactones in aqueous media is reported.
ChemInform Abstract: Tandem Application of C—C Bond‐Forming Reactions with Reductive Ozonolysis.
Authors: Willand‐Charnley Rachel , Dussault Patrick H. 
Published: April 2013

AbstractReductive ozonolysis of alkenes occurs either in the presence of NMO or pyridine to afford intermediate carbonyl compounds which are used for further transformations in a one‐pot procedure.
ChemInform Abstract: Selective Copper Catalyzed Aromatic N‐Arylation in Water.
Authors: Engel‐Andreasen Jens , Shimpukade Bharat , Ulven Trond 
Published: April 2013

AbstractN‐Arylation of imidazoles (I) and (VII), indoles (IX), and purines (XI) proceeds with moderate to high yields and complete selectivity over aliphatic amines.
ChemInform Abstract: Rhodium‐Catalyzed Enantioselective Vinylogous Addition of Enol Ethers to Vinyldiazoacetates.
Authors: Smith Austin G. , Davies Huw M. L. 
Published: April 2013

AbstractTreatment of (Z)‐silyl enol ethers with vinyldiazoacetates in the presence of the chiral Rh catalyst (RHC) is found to result in highly stereoselective formation of disiloxyketals like (III).
ChemInform Abstract: One‐Pot Formylation and Dimerization of p‐Alkyl Phenols Using DCMT‐Activated DMSO.
Authors: Chu Guobiao , Yu Zhifang , Gao Feng , Li Chunbao 
Published: April 2013

AbstractAn unexpected formylation/dimerization reaction is observed when p‐substituted phenols are reacted with DMSO in the presence of 2,4‐dichloro‐6‐methoxy[1,3,5]triazine.
ChemInform Abstract: Efficient Synthesis of N‐Protected 1‐Substituted Homotaurines from a Xanthate and Olefins.
Authors: Huang Zhongyan , Xu Jiaxi 
Published: April 2013

AbstractA series of N‐protected 1‐substituted homotaurines (IV) is synthesized efficiently from xanthate (I) and various olefins via radical addition reaction followed by performic acid oxidation.
ChemInform Abstract: Asymmetric Vinylogous Aldol Reaction via H‐Bond‐Directing Dienamine Catalysis.
Authors: Bastida David , Liu Yankai , Tian Xu , Escudero‐Adan Eduardo , Melchiorre Paolo 
Published: April 2013

AbstractThe presented new enantioselective direct vinylogous aldol reaction of cyclohexenone with various α‐keto esters uses the bifunctional primary amine‐thiourea catalyst ATU.
ChemInform Abstract: Copper‐Mediated Fluoroalkylation of Aryl Iodides Enables Facile Access to Diverse Fluorinated Compounds: The Important Role of the (2‐Pyridyl)sulfonyl Group.
Authors: Zhao Yanchuan , Gao Bing , Ni Chuanfa , Hu Jinbo 
Published: April 2013

AbstractThe (2‐pyridyl)sulfonyl group (Pys) is a multifunctional group in the preparation of structurally diverse fluorinated products.
ChemInform Abstract: Palladium‐Catalyzed Trifluoromethylation of Aromatic C—H Bond Directed by an Acetamino Group.
Authors: Zhang Li‐Sheng , Chen Kang , Chen Guihua , Li Bi‐Jie , Luo Shuang , Guo Qing‐Yun , Wei Jiang‐Bo , Shi Zhang‐Jie 
Published: April 2013

AbstractThe reaction proceeds at the ortho‐position exclusively and applies an Umemoto′s reagent (II).
ChemInform Abstract: An Indium(III)‐Catalyzed Synthesis of 4,4‐Dichloro‐1‐aryl‐N‐alkyl‐1‐yn‐3‐amines via an Intermolecular C(sp2)—C(sp) Bond Formation.
Authors: Malakar Chandi C. , Maes Bert U. W. , Tehrani Kourosch Abbaspour 
Published: April 2013

AbstractThe title reaction is accomplished under very mild conditions, producing the corresponding final products in good to excellent yields.
ChemInform Abstract: Iron‐Catalyzed Chemoselective Azidation of Benzylic Silyl Ethers.
Authors: Sawama Yoshinari , Nagata Saori , Yabe Yuki , Morita Kosuke , Monguchi Yasunari , Sajiki Hironao 
Published: April 2013

AbstractSecondary and tertiary benzyl silyl ethers are transformed to the azido products selectively in the presence of primary benzyl silyl ethers [e.g. (IX)], alkyl chlorides [e.g. (IIId)], and α,β‐unsaturated esters [e.g. (XI)] under mild conditions and in short reaction times.
ChemInform Abstract: Development of Zn—ProPhenol‐Catalyzed Asymmetric Alkyne Addition: Synthesis of Chiral Propargylic Alcohols.
Authors: Trost Barry M. , Bartlett Mark J. , Weiss Andrew H. , von Wangelin Axel Jacobi , Chan Vincent S. 
Published: April 2013

AbstractThis method yields chiral propargylic alcohols and tolerates a variety of functional groups.
ChemInform Abstract: Application and Mechanistic Studies of a Water‐Oxidation Catalyst in Alcohol Oxidation by Employing Oxygen‐Transfer Reagents.
Authors: Verho Oscar , Dilenstam Marlene D. V. , Kaerkaes Markus D. , Johnston Eric V. , Aakermark Torbjoern , Baeckvall Jan‐E. , Aakermark Bjoern 
Published: April 2013

AbstractThe ruthenium catalyst is successfully applied to the oxidation of benzylic and aliphatic secondary alcohols.
ChemInform Abstract: Remarkable Effect of PEG‐1000‐Based Dicationic Ionic Liquid for N‐Hydroxyphthalimide‐Catalyzed Aerobic Selective Oxidation of Alkylaromatics.
Authors: Lu Tingting , Lu Ming , Yu Wang , Liu Zhongjie 
Published: April 2013

AbstractThe PEG‐1000 based dicationic ionic liquid enhances the catalytic activity and the reaction time, and is environmentally benign.
ChemInform Abstract: Cyclopropenone Catalyzed Substitution of Alcohols with Mesylate Ion.
Authors: Nacsa Eric D. , Lambert Tristan H. 
Published: April 2013

AbstractThe presented method applies iBu3N as a base and diphenyl‐ (DPC) and dianisylcyclopropenones (DAC) as promoters and proceeds with high stereoselectivity and inversion of configuration.
ChemInform Abstract: Intermolecular Gold(I)‐Catalyzed Alkyne Carboalkoxylation Reactions for the Multicomponent Assembly of β‐Alkoxy Ketones.
Authors: Schultz Danielle M. , Babij Nicholas R. , Wolfe John P. 
Published: April 2013

AbstractA new method for the construction of β‐alkoxy ketones from readily available precursors is reported and a mechanism for the Au(I)‐catalyzed reaction is proposed.
ChemInform Abstract: Palladium‐Catalyzed Decarboxylative Acylation of O‐Methyl Ketoximes with α‐Keto Acids.
Authors: Kim Minyoung , Park Jihye , Sharma Satyasheel , Kim Aejin , Park Eonjeong , Kwak Jong Hwan , Jung Young Hoon , Kim In Su 
Published: April 2013

AbstractA broad variety of O‐methyl ketoximes undergo decarboxylative cross‐coupling reaction with α‐keto acids.
ChemInform Abstract: Domino Inverse Electron‐Demand Diels—Alder/Cyclopropanation Reaction of Diazines Catalyzed by a Bidentate Lewis Acid.
Authors: Kessler Simon N. , Neuburger Markus , Wegner Hermann A. 
Published: April 2013

AbstractThe coupling of phthalazines with electron‐rich furans in the presence of a Lewis acid is found to provide a new and stereoselective approach to benzonorcaradienes.
ChemInform Abstract: Organocatalytic Synthesis of Highly Substituted Furfuryl Alcohols and Amines.
Authors: Clark J. Stephen , Boyer Alistair , Aimon Anthony , Engel Garcia Paloma , Lindsay David M. , Symington Andrew D. F. , Danoy Yves 
Published: April 2013

AbstractIt is found that tetrahydrothiophene efficiently promotes the cyclization of activated enynones with alcohols and amines giving various highly substituted furfuryl alcohols and amines.
ChemInform Abstract: Highly Regioselective Opening of Zirconacyclopentadienes by Remote Coordination: Concise Synthesis of the Furan Core of the Leupyrrins.
Authors: Debnar Thomas , Dreisigacker Sandra , Menche Dirk 
Published: April 2013

AbstractAn efficient method for the highly regioselective opening of aliphatic zirconacyclopentadienes based on a novel concept of remote stereorelay is described.
ChemInform Abstract: Synthetic Strategy for Cyclic Amines: A Stereodefined Cyclic N,O‐Acetal as a Stereocontrol and Diversity‐Generating Element.
Authors: Kim Haejin , Lim Wontaeck , Im Donghong , Kim Dong‐gil , Rhee Young Ho 
Published: April 2013

AbstractA new and efficient method to prepare various optically active cyclic amines is reported.
ChemInform Abstract: [3 + 2] Cycloaddition of Propargylamines and α‐Acylketene Dithioacetals: A Synthetic Strategy for Highly Substituted Pyrroles.
Authors: Zhao Yu‐Long , Di Chong‐Hui , Liu Si‐Di , Meng Jia , Liu Qun 
Published: April 2013

AbstractThe synthesis of highly functionalized pyrroles via a new cycloaddition strategy is presented.
ChemInform Abstract: 5‐Hydroxyindoles by Intramolecular Alkynol—Furan Diels—Alder Cycloaddition.
Authors: LaPorte Matthew , Hong Ki Bum , Xu Jie , Wipf Peter 
Published: April 2013

AbstractPropargyl alcohols isolated after the first step undergo intramolecular cycloaddition under microwave irradiation to give the title compounds in good yields.
ChemInform Abstract: Microwave‐Assisted Synthesis and Crystal Structure of Novel 2‐Dichloromethyl‐1,3‐dioxolanes.
Authors: Ye Fei , Li Ying , Fu Ying , Gao Shuang , Zhao Li‐Xia 
Published: April 2013

AbstractA series of novel 2‐dichloromethyl‐1,3‐dioxolanes (V) are synthesized by dichlorocarbene insertion into the C—H bond of dioxolanes (III).
ChemInform Abstract: Synthesis, Crystal Structure and Evaluation of Cancer Inhibitory Activity of 4‐[Indol‐3‐yl‐methylene]‐1H‐pyrazol‐5(4H)‐one Derivatives.
Authors: Jing Lingling , Wang Liang , Zhao Yinglan , Tan Rui , Xing Xiumei , Liu Ting , Huang Wencai , Luo Youfu , Li Zicheng 
Published: April 2013

AbstractSeveral 4‐[indol‐3‐yl‐methylene]‐1H‐pyrazol‐5(4H)‐one derivatives (V) (32 examples) are synthesized via an Aldol condensation reaction.
ChemInform Abstract: Synthesis and Antiangiogenic Activity of Benzothiazole, Benzimidazole Containing Phthalimide Derivatives.
Authors: Nagarajan Shunmugam , Majumder Syamantak , Sharma Upendra , Rajendran Saranya , Kumar Neeraj , Chatterjee Suvro , Singh Bikram 
Published: April 2013

AbstractTitle compounds (III) are synthesized using an ionic liquid as solvent and catalyst.
ChemInform Abstract: Direct α‐Functionalization of Simple Aldehydes via Oxidative N‐Heterocyclic Carbene Catalysis.
Authors: Mo Junming , Yang Ruojie , Chen Xingkuan , Tiwari Bhoopendra , Chi Yonggui Robin 
Published: April 2013

AbstractThe protocol applies a stoichiometric amount of quinone as an oxidant and proceeds via oxidative enolate formation to afford γ‐lactones with high yields and complete enantioselectivity.
ChemInform Abstract: Rhodium(III)‐Catalyzed Direct Oxidative Cross Coupling at the C5 Position of Chromones with Alkenes.
Authors: Samanta Rajarshi , Narayan Rishikesh , Antonchick Andrey P. 
Published: April 2013

AbstractThe present cross‐coupling of chromones and flavones with a broad range of alkenes proceeds selectively at the C5 position.
ChemInform Abstract: Direct and Stereoselective Alkylation of Nitro Derivatives with Activated Alcohols in Trifluoroethanol.
Authors: Petruzziello Diego , Gualandi Andrea , Grilli Stefano , Cozzi Pier Giorgio 
Published: April 2013

AbstractThe first example of the addition of various nitro compounds to alcohols performed in TFE is described.
ChemInform Abstract: Regioselective Cleavage of Unstrained C—C Bond and C—H Bond: Palladium—Copper Catalyzed Deacetophenonylative Arylation of Coumarin Derivatives.
Authors: Sun Manman , Shen Guodong , Bao Weiliang 
Published: April 2013

AbstractThe palladium and copper(II) catalyzed C—C bond cleavage of coumarin derivatives with the departure of acetophenone and subsequent regioselective coupling with a number of aromatics is described.