bluuebunny/crossref_metadata_2025_split huggingface dataset:
Enantioselective Cascade Michael Addition/Cyclization Reactions of 3‐Nitro‐2H‐Chromenes with 3‐Isothiocyanato Oxindoles: Efficient Synthesis of Functionalized Polycyclic Spirooxindoles
Authors: Tan Fen , Lu Liang‐Qiu , Yang Qing‐Qing , Guo Wei , Bian Qiao , Chen Jia‐Rong , Xiao Wen‐Jing 
Published: February 2014

AbstractAn unprecedented Zn(OTf)2‐catalyzed asymmetric Michael addition/cyclization cascade of 3‐nitro‐2H‐chromenes with 3‐isothiocyanato oxindoles has been disclosed. This transformation provides an efficient access to various synthetically important polycyclic spirooxindoles in a highly stereoselective manner under mild conditions (72–99 % yields, up to >95:5 d.r. and >99 % ee). The reaction leads to the formation of three consecutive stereocenters, including 1,3‐nonadjacent tetrasubstituted carbon stereocenters, in a single operation. A bifunctional activation model of the chiral Zn(OTf)2/bis(oxazoline) complex was proposed based on control experiments, wherein the ZnII moiety serves as a Lewis acid and the N atom of the free NH group acts as a Lewis base by a hydrogen‐bonding interaction.
Structural and Photophysical Study on Heterobimetallic Complexes with d8–d10 Interactions Supported by Carborane Ligands: Theoretical Analysis of the Emissive Behaviour
Authors: Crespo Olga , Gimeno M. Concepción , Laguna Antonio , Lehtonen Olli , Ospino Isaura , Pyykkö Pekka , Villacampa M. Dolores 
Published: February 2014

AbstractHeterobimetallic complexes of formula [M{(PPh2)2C2B9H10}(S2C2B10H10)M′(PPh3)] (M=Pd, Pt; M′=Au, Ag, Cu) and [Ni{(PPh2)2C2B9H10}(S2C2B10H10)Au(PPh3)] were obtained from the reaction of [M{(PPh2)2C2B10H10}(S2C2B10H10)] (M=Pd, Pt) with [M′(PPh3)]+ (M′=Au, Ag, Cu) or by one‐pot synthesis from [(SH)2C2B10H10], (PPh2)2C2B10H10, NiCl2⋅6 H2O, and [Au(PPh3)]+. They display d8–d10 intermetallic interactions and emit red light in the solid state at 77 K. Theoretical studies on [M{(PPh2)2C2B9H10}(S2C2B10H10)Au(PPh3)] (M=Pd, Pt, Ni) attribute the luminescence to ligand (thiolate, L)‐to‐“P2‐M‐S2” (ML′) charge‐transfer (LML′CT) transitions for M=Pt and to metal (M)‐to‐“P2‐M‐S2” (ML′) charge‐transfer (MML′CT) transitions for M=Ni, Pd.
Peptide‐Based Carbohydrate Receptors
Authors: Rauschenberg Melanie , Bandaru Sateesh , Waller Mark P. , Ravoo Bart Jan 
Published: February 2014

AbstractA broad spectrum of physiological processes is mediated by highly specific noncovalent interactions of carbohydrates and proteins. In a recent communication we identified several cyclic hexapeptides in a dynamic combinatorial library that interact selectively with carbohydrates with high binding constants in water. Herein, we report a detailed investigation of the noncovalent interaction of two cyclic hexapeptides (Cys‐His‐Cys (which we call HisHis) and Cys‐Tyr‐Cys (which we call TyrTyr)) with a selection of monosaccharides and disaccharides in aqueous solution. The parallel and antiparallel isomers of HisHis or TyrTyr were synthesized separately, and their interaction with monosaccharides and disaccharides in aqueous solution was studied by isothermal titration calorimetry, NMR spectroscopic titrations, and circular dichroism spectroscopy. From these measurements, we identified particularly stable complexes (Ka>1000 M−1) of the parallel isomer of HisHis with N‐acetylneuraminic acid and with methyl‐α‐D‐galactopyranoside as well as of both isomers of TyrTyr with trehalose. To gain further insight into the structure of the peptide–carbohydrate complexes, structure prediction was performed using quantum chemical methods. The calculations confirm the selectivity observed in the experiments and indicate the formation of multiple intermolecular hydrogen bonds in the most stable complexes.
Towards the Fabrication of the Top‐Contact Electrode in Molecular Junctions by Photoreduction of a Metal Precursor
Authors: Martín Santiago , Pera Gorka , Ballesteros Luz M. , Hope Adam J. , Marqués‐González Santiago , Low Paul J. , Pérez‐Murano Francesc , Nichols Richard J. , Cea Pilar 
Published: February 2014

AbstractLangmuir films of 4‐{[4‐({4‐[(trimethylsilyl)ethynyl]phenyl}ethynyl)phenyl]ethynyl} benzenaminium chloride ([1 H]Cl) undergo anion metathesis when assembled on an aqueous auric acid (HAuCl4) subphase. Subsequent transfer to solid supports gives well‐formed Langmuir–Blodgett (LB) monolayers of [1 H]AuCl4 in which the trimethylsilyl group serves as the surface contacting group. Photoreduction of the aurate on these monolayers leads to the formation of metallic gold nanoislands, which were distributed over the surface of the film. Electrical properties of these nascent devices were determined by recording current–voltage (I–V) curves with conductive atomic force microscopy (c‐AFM) using the PeakForce tunneling AFM (PF‐TUNA) mode. This gives consistent sigmoidal I–V curves that are indicative of well‐behaved junctions free of metallic filaments and short circuits. The photoreduction of a metal precursor incorporated onto monomolecular films is therefore proposed as an effective method for the fabrication of molecular junctions.
From Intercalation to Groove Binding: Switching the DNA‐Binding Mode of Isostructural Transition‐Metal Complexes
Authors: Ahmad Haslina , Wragg Ashley , Cullen Will , Wombwell Claire , Meijer Anthony J. H. M. , Thomas Jim A. 
Published: February 2014

AbstractThe interaction with duplex DNA of a small library of structurally related complexes that all contain a d6‐metal ion coordinated to either the 2,2′:4,4′′:4′,4′′′‐quaterpyridyl ligand or its methylated derivative are reported. This library is made up of a mixture of newly synthesised and previously reported systems. Despite their structural similarities the complexes display an almost 20‐fold variation in binding affinities. Although effects due to the overall charge of the complexes are apparent, the differences in binding characteristics are deeper than this; indeed, in a number of cases, changes in overall charge have little effect on binding affinity. Intriguingly, despite interacting with DNA through unfused ring systems, although two of the complexes studied are groove binders, the majority are non‐classical intercalators. A rationale for these effects has been obtained through a combination of experimental and computational studies.
A Dithienylethene‐Based Rewritable Hydrogelator
Authors: van Herpt Jochem T. , Stuart Marc C. A. , Browne Wesley R. , Feringa Ben L. 
Published: February 2014

AbstractDithienylethene photochromic switching units have been incorporated into a hydrogelating system based on a tripeptide motif. The resulting hybrid system provided both a photochromic response and the ability to gelate water under acidic and neutral conditions. Fluorescence spectroscopy shows that the dithienylethene units are in sufficient proximity to each other to stack in gel fibers, with the tripeptide unit determining solubility. TEM measurements provided insight into the microscopic structure of the fibers formed.
Using Simple Spray Pyrolysis to Prepare Yolk–Shell‐Structured ZnO–Mn3O4 Systems with the Optimum Composition for Superior Electrochemical Properties
Authors: Choi Seung Ho , Kang Yun Chan 
Published: February 2014

AbstractA spray‐pyrolysis process is introduced as an effective tool for the preparation of yolk–shell‐structured materials with electrochemical properties suitable for anode materials in Li‐ion batteries (LIBs). Yolk–shell‐structured ZnO–Mn3O4 systems with various molar ratios of the Zn and Mn components are prepared. The yolk–shell‐structured ZnO–Mn3O4 powders with a molar ratio of 1:1 of the Zn and Mn components are shown to have high capacities and good cycling performances.
Self‐Sorting of Cyclic Peptide Homodimers into a Heterodimeric Assembly Featuring an Efficient Photoinduced Intramolecular Electron‐Transfer Process
Authors: Aragay Gemma , Ventura Barbara , Guerra Arcadio , Pintre Inmaculada , Chiorboli Claudio , García‐Fandiño Rebeca , Flamigni Lucia , Granja Juan R. , Ballester Pablo 
Published: February 2014

AbstractWe describe the thermodynamic characterisation of the self‐sorting process experienced by two homodimers assembled by hydrogen‐bonding interactions through their cyclopeptide scaffolds and decorated with Zn–porphyrin and fullerene units into a heterodimeric assembly that contains one electron‐donor (Zn–porphyrin) and one electron‐acceptor group (fullerene). The fluorescence of the Zn–porphyrin unit is strongly quenched upon heterodimer formation. This phenomenon is demonstrated to be the result of an efficient photoinduced electron‐transfer (PET) process occurring between the Zn–porphyrin and the fullerene units of the heterodimeric system. The recombination lifetime of the charge‐separated state of the heterodimer complex is in the order of 180 ns. In solution, both homo‐ and heterodimers are present as a mixture of three regioisomers: two staggered and one eclipsed. At the concentration used for this study, the high stability constant determined for the heterodimer suggests that the eclipsed conformer is the main component in solution. The application of the bound‐state scenario allowed us to calculate that the heterodimer exists mainly as the eclipsed regioisomer (75–90 %). The attractive interaction that exists between the donor and acceptor chromophores in the heterodimeric assembly favours their arrangement in close contact. This is confirmed by the presence of charge‐transfer bands centred at 720 nm in the absorption spectrum of the heterodimer. PET occurs in approximately 75 % of the chromophores after excitation of both Zn–porphyrin and fullerene chromophores. Conversely, analogous systems, reported previously, decorated with extended tetrathiafulvalene and fullerene units showed a PET process in a significantly reduced extent (33 %). We conclude that the strength (stability constant (K)×effective molarity (EM)) of the intramolecular interaction established between the two chromophores in the Zn–porphyrin/fullerene cyclopeptide‐based heterodimers controls the regioisomeric distribution and regulates the high extent to which the PET process takes place in this system.
Switching of the Magnetocaloric Effect of MnII Glycolate by Water Molecules
Authors: Chen Yan‐Cong , Guo Fu‐Sheng , Liu Jun‐Liang , Leng Ji‐Dong , Vrábel Peter , Orendáč Martin , Prokleška Jan , Sechovský Vladimír , Tong Ming‐Liang 
Published: February 2014

AbstractThe transformation of MnII glycolates (glc) between the three‐dimensional coordination polymer [Mn(glc)2]n (1) and discrete mononuclear phase [Mn(glc)2(H2O)2] (2) can be reversibly switched by water molecules, which dramatically change the magnetocaloric effect (MCE) of MnII glycolates from the maximum of 6.9 J kg−1 K−1 in 1 to 60.3 J kg−1 K−1 in 2. This case example reveals that the effect of magnetic coupling on MCE plays a dominant role over that of other factors such as magnetic density for 3d‐type magnetic refrigerants.
Spectroscopic Monitoring of the Acidity of Water Films on Ru(0001): Orientation‐Specific Acidity of Adsorbed Water
Authors: Kim Youngsoon , Shin Sunghwan , Moon Eui‐Seong , Kang Heon 
Published: February 2014

AbstractWe examined the acid–base properties of water films adsorbed onto a Ru(0001) substrate by using surface spectroscopic methods in vacuum environments. Ammonia adsorption experiments combined with low‐energy sputtering (LES), reactive ion scattering (RIS), reflection–absorption infrared spectroscopy (RAIRS) and temperature‐programmed desorption (TPD) measurements showed that the adsorbed water is acidic enough to transfer protons to ammonia. Only the water molecules in an intact water monolayer and water clusters larger than the hexamer exhibit such acidity, whereas small clusters, a thick ice film or a partially dissociated water monolayer that contains OH, H2O and H species are not acidic. The observations indicate the orientation‐specific acidity of adsorbed water. The acidity stems from water molecules with H‐down adsorption geometry present in the monolayer. However, the dissociation of water into H and OH on the surface does not promote but rather suppresses the proton transfer to ammonia.
Rational Synthesis of Triangular Au–Ag2S Hybrid Nanoframes with Effective Photoresponses
Authors: Xu Lin , Yin Zongyou , Cao Shao‐Wen , Fan Zhanxi , Zhang Xiao , Zhang Hua , Xue Can 
Published: February 2014

AbstractTriangular Au–Ag2S hybrid nanoframes were successfully synthesised by using Ag nanoprisms as templates through gold coating, etching and sulfuration. These Au–Ag2S hybrid nanoframes exhibit effective photocurrent responses for potential photoelectrochemical applications.
Mixed Adenine/Guanine Quartets with Threetrans‐a2PtII(a=NH3or MeNH2) Cross‐Links: Linkage and Rotational Isomerism, Base Pairing, and Loss of NH3
Authors: Albertí Francisca M. , Rodríguez‐Santiago Luis , Sodupe Mariona , Mirats Andrea , Kaitsiotou Helena , Sanz Miguel Pablo J. , Lippert Bernhard 
Published: February 2014

AbstractOf the numerous ways in which two adenine and two guanines (N9 positions blocked in each) can be cross‐linked by three linear metal moieties such astrans‐a2PtII(with a=NH3or MeNH2) to produce open metalated purine quartets with exclusive metal coordination through N1 and N7 sites, one linkage isomer was studied in detail. The isomertrans,trans,trans‐[{Pt(NH3)2(N7‐9‐EtA‐N1)2}{Pt(MeNH2)2(N7‐9‐MeGH)}2][(ClO4)6]⋅3H2O (1) (with 9‐EtA=9‐ethyladenine and 9‐MeGH=9‐methylguanine) was crystallized from water and found to adopt a flat Z‐shape in the solid state as far as the trinuclear cation is concerned. In the presence of excess 9‐MeGH, a meander‐like construct,trans,trans,trans‐[{Pt(NH3)2(N7‐9‐EtA‐N1)2}{Pt(MeNH2)2(N7‐9‐MeGH)2}][(ClO4)6]⋅[(9‐MeGH)2]⋅7 H2O (2) is formed, in which the two extra 9‐MeGH nucleobases are hydrogen bonded to the two terminal platinated guanine ligands of1. Compound 1, and likewise the analogous complex1 a(with NH3ligands only), undergo loss of an ammonia ligand and formation of NH4+when dissolved in [D6]DMSO. From the analogy between the behavior of1and1 ait is concluded that a NH3ligand from the central Pt atom is lost. Addition of 1‐methylcytosine (1‐MeC) to such a DMSO solution reveals coordination of 1‐MeC to the central Pt. In an analogous manner, 9‐MeGH can coordinate to the central Pt in [D6]DMSO. It is proposed that the proton responsible for formation of NH4+is from one of the exocyclic amino groups of the two adenine bases, and furthermore, that this process is accompanied by a conformational change of the cation from Z‐form to U‐form. DFT calculations confirm the proposed mechanism and shed light on possible pathways of this process. Calculations show that rotational isomerism is not kinetically hindered and that it would preferably occur previous to the displacement of NH3by DMSO. This displacement is the most energetically costly step, but it is compensated by the proton transfer to NH3and formation of U(−H+) species, which exhibits an intramolecular hydrogen bond between the deprotonated N6H−of one adenine and the N6H2group of the other adenine. Finally the question is examined, how metal cross‐linking patterns in closed metallacyclic quartets containing two adenine and two guanine nucleobases influence the overall shape (square, rectangle, trapezoid) and the planarity of a metalated purine quartet.
Copper‐Catalyzed Trifluoromethylation of Internal Olefinic CH Bonds: Efficient Routes to Trifluoromethylated Tetrasubstituted Olefins and N‐Heterocycles
Authors: Mao Zhifeng , Huang Fei , Yu Haifeng , Chen Jiping , Yu Zhengkun , Xu Zhaoqing 
Published: February 2014

AbstractThe functionalization of internal olefins has been a challenging task in organic synthesis. Efficient CuII‐catalyzed trifluoromethylation of internal olefins, that is, α‐oxoketene dithioacetals, has been achieved by using Cu(OH)2 as a catalyst and TMSCF3 as a trifluoromethylating reagent. The push–pull effect from the polarized olefin substrates facilitates the internal olefinic CH trifluoromethylation. Cyclic and acyclic dithioalkyl α‐oxoketene acetals were used as the substrates and various substituents were tolerated. The internal olefinic CH bond cleavage was not involved in the rate‐determining step, and a mechanism that involves radicals is proposed based on a TEMPO‐quenching experiment of the trifluoromethylation reaction. Further derivatization of the resultant CF3 olefins led to multifunctionalized tetrasubstituted CF3 olefins and trifluoromethylated N‐heterocycles.
ChemInform Abstract: Crystal Structures and Stability of LiCeF5 and LiThF5 at High Pressures: A Comparative Study of the Coordination Around the Ce4+ and Th4+ Ions.
Authors: Grzechnik Andrzej , Underwood Christopher C. , Kolis Joseph W. , Friese Karen 
Published: February 2014

AbstractSingle crystals of the title compounds are hydrothermally prepared from aqueous mixtures of ThF4 or CeF4 and LiF (autoclave, 225 °C, 1 d).
ChemInform Abstract: Tunable Blue—White—Red Photoluminescence and Long Lasting Phosphorescence Properties of a Novel Zirconate Phosphor: La2Zr2O7:Sm3+,Ti4+.
Authors: Duan Beichen , Zhang Jiachi , Liu Xue , Yuan Qi , Wang Yuhua 
Published: February 2014

AbstractThe title long lasting phosphorescence phosphor is prepared by solid state reaction of ZrO2, La2O3, TiO2 (0.1, 0.5, 1 mol%), and Sm2O3 (0.1, 0.5, 1, 1.5 mol%) in a H3BO3 flux (air, alumina crucible, 1673 K, 10 h).
ChemInform Abstract: A Lithium‐Rich Compound Li7Mn(BO3)3 Containing Mn2+ in Tetrahedral Coordination: A Cathode Candidate for Lithium‐Ion Batteries.
Authors: Afyon Semih , Woerle Michael , Nesper Reinhard 
Published: February 2014

AbstractCrystals of the title compound are synthesized from stoichiometric mixtures of Li2O, MnO, and B2O3 (sealed Nb tube, 850 °C, 24 h).
ChemInform Abstract: Improved Capacity and Rate Capability of Fe2O3 Modified Li4Ti5O12 Anode Material.
Authors: Wang Baofeng , Cao Jie , Liu Yu , Zeng Tao , Li Lei 
Published: February 2014

AbstractSpinel Li4Ti5O12/Fe2O3 composites are prepared by adding Li4Ti5O12 to a colloidal suspension of Fe(OH)3 followed by drying the resultant composite and sintering (500 °C, 5 h, N2 atmosphere).
ChemInform Abstract: Iodine—Iodine Bonding Makes Tetra(diiodine)chloride, [Cl(I2)4]‐, Planar.
Authors: Walbaum Christine , Richter Mark , Sachs Ulf , Pantenburg Ingo , Riedel Sebastian , Mudring Anja‐Verena , Meyer Gerd 
Published: February 2014

AbstractReaction of YI3 with bzc (bzc: benzo‐15‐crown‐5), NaCl, and iodine in MeOH lead to the formation of dark red to black plates of [(H5O2)(I2bzc)2] [Cl(I2)4] (I) and yellow needles or plates of [(H5O2)(I2bzc)2] [ICl2](I2bzc)2 (II).
ChemInform Abstract: Versatile Synthesis of Benzothiophenes and Benzoselenophenes by Rapid Assembly of Arylzinc Reagents, Alkynes, and Elemental Chalcogens.
Authors: Wu Bin , Yoshikai Naohiko 
Published: February 2014

AbstractThe combination of cobalt‐catalyzed arylzincation and copper‐mediated/catalyzed chalcogenative cyclization allows the construction of benzothiophenes and benzoselenophenes with diverse functionalities at the benzene ring, which are not readily accessible by conventional methods.
ChemInform Abstract: “Phosphite—Urea” Cooperative High‐Turnover Catalysts for the Highly Selective Bromocyclization of Homogeranylarenes.
Authors: Sawamura Yasuhiro , Nakatsuji Hidefumi , Sakakura Akira , Ishihara Kazuaki 
Published: February 2014

AbstractThe use of a highly active biphenol‐derived phosphite‐urea cooperative catalyst for the bromocyclization of homogeranylarenes (I) is described.
ChemInform Abstract: Rearrangement of 2‐Bromo‐1‐(bromomethyl)ethyl Esters under Basic Conditions: Scope and Mechanism.
Authors: Alliot Julien , Gravel Edmond , Doris Eric 
Published: February 2014

AbstractThe title reaction proceeds through formation of a transient dioxolane intermediate followed by hydrolysis with aqueous acid, which triggers ring opening and rearrangement into the final products.
ChemInform Abstract: Cupration of C2F5H: Isolation, Structure, and Synthetic Applications of [K(DMF)2][(t‐BuO)Cu(C2F5)]. Highly Efficient Pentafluoroethylation of Unactivated Aryl Bromides.
Authors: Lishchynskyi Anton , Grushin Vladimir V. 
Published: February 2014

AbstractYield of the reaction products is determined by NMR‐analysis using an internal standard.
ChemInform Abstract: Lewis Acid‐Mediated Azidolysis of 2,3‐Three Membered Heterocyclic Amines.
Authors: Righi Giuliana , Scotti Giorgio , Caruso Francesco , Rossi Miriam , Mecozzi Francesco , Antonioletti Roberto , Pelagalli Romina 
Published: February 2014

AbstractThe regioselectivity of the described azidolysis of aziridines and epoxides can be controlled by the use of different Lewis‐acids.
ChemInform Abstract: Overman Rearrangement of Fluorinated Allylic Alcohols as a Key Step for the Synthesis of Glycyldecylamide (GDA) Mimics.
Authors: Ramb Daniel C. , Haufe Guenter 
Published: February 2014

AbstractIt is shown that a vinylic fluoride substituent dramatically decelerates the reaction rate of the Overman rearrangement of acetimidates (III).
ChemInform Abstract: Cyclohexanones by Rh‐Mediated Intramolecular C—H Insertion.
Authors: Taber Douglass F. , Paquette Craig M. , Gu Peiming , Tian Weiwei 
Published: February 2014

AbstractLong chain α‐aryl α‐diazo ketones cyclize efficiently to the corresponding cyclohexanones under Rh catalysis.
ChemInform Abstract: Copper Acetoacetonate [Cu(acac)2]/BINAP‐Promoted Csp3—N Bond Formation via Reductive Coupling of N‐Tosylhydrazones with Anilines.
Authors: Aziz Jessy , Brion Jean‐Daniel , Hamze Abdallah , Alami Mouad 
Published: February 2014

AbstractKetone‐ and aldehyde‐derived N‐tosylhydrazones are converted into arylamines tolerating a wide range of functional groups, primary and secondary amines including those with heteroaromatic substituents.
ChemInform Abstract: A Recyclable Cu‐Catalyzed C—N Coupling Reaction in Water and Its Application to Synthesis of Imidazo[1,2‐a]quinoxaline.
Authors: Huang Liye , Yu Ruina , Zhu Xinhai , Wan Yiqian 
Published: February 2014

AbstractThe polystyrene supported pyrrole‐2‐carbohydrazide ligand is synthesized and can be successfully used for Cu‐catalyzed Ullmann‐type reactions of aryl and hetaryl halides with primary amines and imidazole.
ChemInform Abstract: Twofold Unsymmetrical C—H Functionalization of PyrDipSi‐Substituted Arenes: A General Method for the Synthesis of Substituted meta‐Halophenols.
Authors: Sarkar Dhruba , Melkonyan Ferdinand S. , Gulevich Anton V. , Gevorgyan Vladimir 
Published: February 2014

AbstractArenes having a 2‐diisopropylsilylpyridinium substituent are cleanly halogenated with NXS in ortho‐position to the silyl substituent.
ChemInform Abstract: Kinetic Resolution of Secondary Alcohols Catalyzed by Chiral Phosphoric Acids.
Authors: Harada Shingo , Kuwano Satoru , Yamaoka Yousuke , Yamada Ken‐ichi , Takasu Kiyosei 
Published: February 2014

AbstractA new electronically tuned binaphthyl‐based phosphoric acid is developed, that, in contrast to conventional methods, allows the kinetic resolution of a broad range of secondary alcohols without the need of stoichiometric amounts of base.
ChemInform Abstract: Catalytic Asymmetric Insertion of Diazoesters into Aryl‐CHO Bonds: Highly Enantioselective Construction of Chiral All‐Carbon Quaternary Centers.
Authors: Gao Lizhu , Kang Byung Chul , Ryu Do Hyun 
Published: February 2014

AbstractThe first example of a highly enantioselective catalytic C—C insertion of diazoesters into aldehydes affords functionalized acyclic all‐carbon α‐quaternary aldehydes.
ChemInform Abstract: Palladium‐Catalyzed Suzuki—Miyaura Cross‐Coupling of α‐Halomethyl Oxime Ethers and Site‐Selective Cross‐Coupling of Dihalo Derivatives.
Authors: Noverges Barbara , Mollar Cristian , Medio‐Simon Mercedes , Asensio Gregorio 
Published: February 2014

AbstractThe Pd‐catalyzed cross‐coupling reaction of chloromethyl oxime ethers with a wide range of aryl‐, heteroaryl‐, and vinylboronic acids proceeds with good yields.
ChemInform Abstract: Aerobic Photooxidative Cleavage of 1,3‐Diketones to Carboxylic Acids Using 2‐Chloroanthraquinone.
Authors: Tachikawa Yuma , Cui Lei , Matsusaki Yoko , Tada Norihiro , Miura Tsuyoshi , Itoh Akichika 
Published: February 2014

AbstractA direct method for the aerobic photooxidation of β‐diketones of type (I) to give benzoic acids is developed.