bluuebunny/crossref_metadata_2025_split huggingface dataset:
Mechanistic Study on Rh‐Catalyzed Stereoselective CC/CH Activation of tert‐Cyclobutanols
Authors: Yu Haizhu , Wang Chen , Yang Yimeng , Dang Zhi‐Min 
Published: February 2014

AbstractA mechanistic study was performed on the Rh‐catalyzed stereoselective CC/CH activation of tert‐cyclobutanols. The present study corroborated the previous proposal that the reaction occurs by metalation, β‐C elimination, 1,4‐Rh transfer, CO insertion, and a final catalyst‐regeneration step. The rate‐determining step was found to be the 1,4‐Rh transfer step, whereas the stereoselectivity‐determining step did not correspond to any of the aforementioned steps. It was found that both the thermodynamic stability of the product of the β‐C elimination and the kinetic feasibility of the 1,4‐Rh transfer and CO insertion steps made important contributions. In other words, three steps (i.e., β‐C elimination, 1,4‐Rh transfer, and CO insertion) were found to be important in determining the configurations of the two quaternary stereocenters.
Urea‐Based Porous Organic Frameworks: Effective Supports for Catalysis in Neat Water
Authors: Li Liuyi , Chen Zhilin , Zhong Hong , Wang Ruihu 
Published: February 2014

AbstractTwo urea‐based porous organic frameworks, UOF‐1 and UOF‐2, were synthesized through a urea‐forming condensation of 1,3,5‐benzenetriisocyanate with 1,4‐diaminobenzene and benzidine, respectively. UOF‐1 and UOF‐2 possess good hydrophilic properties and high scavenging ability for palladium. Their palladium polymers, PdII/UOF‐1 and PdII/UOF‐2, exhibit high catalytic activity and selectivity for Suzuki–Miyaura cross‐coupling reactions and selective reduction of nitroarenes in water. The catalytic reactions can be efficiently performed at room temperature. Palladium nanoparticles with narrow size distribution were formed after the catalytic reaction and were well dispersed in UOF‐1 and UOF‐2. XPS analysis confirmed the coordination of the urea oxygen atom with palladium. SEM and TEM images showed that the original network morphology of UOF‐1 and UOF‐2 was maintained after palladium loading and catalytic reactions.
Two Series of Sandwich Frameworks Based on Two Different Kinds of Nanosized Lanthanide(III) and Copper(I) Wheel Cluster Units
Authors: Fang Wei‐Hui , Cheng Jian‐Wen , Yang Guo‐Yu 
Published: February 2014

AbstractTwo series of sandwich frameworks, [La6(μ3‐OH)2(ox)3L12Cu11(μ3‐X)6(μ2‐X)3]⋅8 H2O (X=Br/Cl, FJ‐21 a/b; L=4‐pyridin‐4‐yl‐benzonate; ox=oxalate) and [Ln4(OAc)3(H2O)4L9][Cu(μ3‐I)]@[Cu10(μ3‐I)(μ4‐I)6(μ5‐I)3]⋅7H2O (Ln=Pr/Nd/ Sm/Eu, FJ‐22 a/b/c/d; OAc=acetate) have been hydrothermally prepared. These sandwich frameworks are assembled by two different kinds of nanosized lanthanide(III) and copper(I) wheel cluster units, La18 and 3Cu@Cu24 in FJ‐21, Ln24 and Cu2@Cu24 in FJ‐22. The synergistic coordination between organic ligands, L and oxalate/acetate, leads to the formation of La18 and Ln24 wheels, while the synergistic coordination between organic L and inorganic Br/I ligands results in 3Cu@Cu24 and Cu2@Cu24 wheels for FJ‐21 and FJ‐22, respectively. Thus, two types of synergistic coordination between two different organic ligands, as well as inorganic and organic ligands are simultaneously observed in FJ‐21 and FJ‐22.
Magnetochemical Complexity of Hexa‐ and Heptanuclear Wheel Complexes of Late‐3d Ions Supported by N,O‐Donor Pyridyl–Methanolate Ligands
Authors: Monakhov Kirill Yu. , López Xavier , Speldrich Manfred , van Leusen Jan , Kögerler Paul , Braunstein Pierre , Poblet Josep M. 
Published: February 2014

AbstractThe scaffold geometries, stability and magnetic features of the (pyridine‐2‐yl)methanolate (L) supported wheel‐shaped transition‐metal complexes with compositions [M6L12] (1), [Na⊂(ML2)6]+ (2), and [M′⊂(ML2)6]2+ (3), in which M=CoII, NiII, CuII, and ZnII were investigated with density functional theory (DFT). The goals of this study are manifold: 1) To advance understanding of the magnetism in the synthesized compounds [Na⊂(ML2)6]+ and [M′⊂(ML2)6]2+ that were described in Angew. Chem. Int. Ed.­ 2010, 49, 4443 (I‐{Na⊂Ni6}, I‐{Ni′⊂Ni6}) and Dalton Trans.­ 2011, 40, 10526 (II‐{Na⊂Co6}, II‐{Co′⊂Co6}); 2) To disclose how the structural, electronic, and magnetic characteristics of 1, 2, and 3 change upon varying MII from d7 (Co2+) to d10 (Zn2+); 3) To estimate the influence of the Na+ and M′2+ ions (XQ+) occupying the central voids of 2 and 3 on the external and internal magnetic coupling interactions in these spin structures; 4) To assess the relative structural and electrochemical stabilities of 1, 2, and 3. In particular, we focus here on the net spin polarization, the determination of the strength and the sign of the exchange coupling energies, the rationalization of the nature of the magnetic coupling, and the ground‐state structures of 1, 2, and 3. Our study combines the broken symmetry DFT approach and the model Hamiltonian methodology implemented in the computational framework CONDON 2.0 for the modeling of molecular spin structures, to interpret magnetic susceptibility measurements of I‐{Na⊂Ni6} and I‐{Ni′⊂Ni6}. We illustrate that whereas the structures, stability and magnetism of 1, 2, and 3 are indeed influenced by the nature of 3d transition‐metals in the {M6} rims, the XQ+ ions in the inner cavities of 2 and 3 impact these properties to an even larger degree. As exemplified by I‐{Ni′⊂Ni6}, such heptanuclear complexes exhibit ground‐state multiplets that cannot be described by simplistic model of spin‐up and spin‐down metal centers. Furthermore, we assess how future low‐temperature susceptibility measurements at high magnetic fields can augment the investigation of compound 3 with M=Co, Ni.
Amphiphilic Inclusion Spaces for Various Guests and Regulation of Fluorescence Intensity of 1,8‐Bis(4‐aminophenyl)anthracene Crystals
Authors: Sugino Misa , Hatanaka Keisuke , Araki Yusuke , Hisaki Ichiro , Miyata Mikiji , Tohnai Norimitsu 
Published: February 2014

AbstractA host framework for inclusion of various guest molecules was investigated by preparation of inclusion crystals of 1,8‐bis(4‐aminophenyl)anthracene (1,8‐BAPA) with organic solvents. X‐ray crystallographic analysis revealed construction of the same inclusion space incorporating 1,8‐BAPA and eight guest molecules including both non‐polar (benzene) and polar guests (N,N‐dimethylformamide, DMF). Fluorescence efficiencies varied depending on guest molecule polarity; DMF inclusion crystals exhibited the highest fluorescence intensity (ΦF=0.40), four times as high as that of a benzene inclusion crystal (ΦF=0.10). According to systematic investigations of inclusion phenomena, strong host–guest interactions and filling of the inclusion space led to a high fluorescence intensity. Temperature‐dependent fluorescence spectral measurements revealed these factors effectively immobilised the host framework. Although hydrogen bonding commonly decreases fluorescence intensity, the present study demonstrated that such strong interactions provide excellent conditions for fluorescence enhancement. Thus, this remarkable behaviour has potential application toward sensing of highly polar molecules, such as biogenic compounds.
Platinum Group Metal Clusters: From Gas‐Phase Structures and Reactivities towards Model Catalysts
Authors: Harding Dan J. , Fielicke André 
Published: February 2014

AbstractTransition‐metal clusters have long been proposed as model systems to study heterogeneous catalysts. In this Concept article we show how advanced spectroscopic techniques can be used to determine the structures of gas‐phase transition‐metal clusters and their complexes with small molecules. Combined with computational studies, this can help to develop an understanding of the reactivity of these catalytic models.
Highly Luminescent Colloidal Eu3+‐Doped KZnF3 Nanoparticles for the Selective and Sensitive Detection of CuII Ions
Authors: Sarkar Shyam , Chatti Manjunath , Mahalingam Venkataramanan 
Published: February 2014

AbstractThis article describes a green synthetic approach to prepare water dispersible perovskite‐type Eu3+‐doped KZnF3 nanoparticles, carried out using environmentally friendly microwave irradiation at low temperature (85 °C) with water as a solvent. Incorporation of Eu3+ ions into the KZnF3 matrix is confirmed by strong red emission upon ultraviolet (UV) excitation of the nanoparticles. The nanoparticles are coated with poly(acrylic acid) (PAA), which enhances the dispersibility of the nanoparticles in hydrophilic solvents. The strong red emission from Eu3+ ions is selectively quenched upon addition of CuII ions, thus making the nanoparticles a potential CuII sensing material. This sensing ability is highly reversible by the addition of ethylenediaminetetraacetic acid (EDTA), with recovery of almost 90 % of the luminescence. If the nanoparticles are strongly attached to a positively charged surface, dipping the surface in a CuII solution leads to the quenching of Eu3+ luminescence, which can be recovered after dipping in an EDTA solution. This process can be repeated for more than five cycles with only a slight decrease in the sensing ability. In addition to sensing, the strong luminescence from Eu3+‐doped KZnF3 nanoparticles could be used as a tool for bioimaging.
Regio‐ and Enantioselective Synthesis of N‐Allylindoles by Iridium‐Catalyzed Allylic Amination/Transition‐Metal‐Catalyzed Cyclization Reactions
Authors: Ye Ke‐Yin , Dai Li‐Xin , You Shu‐Li 
Published: February 2014

AbstractRegio‐ and enantioselective synthesis of N‐allylindoles was realized through an iridium‐catalyzed asymmetric allylic amination reaction with 2‐alkynylanilines and subsequent transition‐metal‐catalyzed cyclization reactions. The highly enantioenriched allylic amines prepared from Ir‐catalysis were treated with catalytic amount of NaAuCl4⋅2 H2O or PdCl2 providing various substituted N‐allylindoles in excellent yields and enantioselectivities.
ChemInform Abstract: Anionogenic Mixed Valency in KxBa1‐xO2‐δ.
Authors: Giriyapura Shivakumara , Zhang Baomin , de Groot Robert A. , de Wijs Gilles A. , Caretta Antonio , van Loosdrecht Paul H. M. , Kockelmann Winfried , Palstra Thomas T. M. , Blake Graeme R. 
Published: February 2014

AbstractThe solid solution series KxBa1‐xO2‐δ (x < 0.41) is synthesized from stoichiometric amounts of Ba(NO3)2 and KO2 in liquid NH3 (‐40 to ‐60 °C, 30 min).
ChemInform Abstract: Geometrical Spin Frustration and Ferromagnetic Ordering in (MnxPb2‐x)Pb2Sb4Se10.
Authors: Poudeu Pierre F. P. , Djieutedjeu Honore , Ranmohotti Kulugammana G. S. , Makongo Julien P. A. M. , Takas Nathan 
Published: February 2014

AbstractPolycrystalline single phase powders of (MnxPb2‐x)Pb2Sb4Se10 (x = 1.0, 1.22, 2) are prepared from mixtures of the elements (800 K, 96 h).
ChemInform Abstract: La10W2O21: An Anion‐Deficient Fluorite‐Related Superstructure with Oxide Ion Conduction.
Authors: Chambrier Marie‐Helene , Le Bail Armel , Giovannelli Fabien , Redjaimia Abdelkrim , Florian Pierre , Massiot Dominique , Suard Emmanuelle , Goutenoire Francois 
Published: February 2014

AbstractLa10W2O21 is prepared by solid state reaction of a stoichiometric mixture of La2O3 and WO3 (alumina crucible, 1550 °C, 12 h).
ChemInform Abstract: Synthesis and Structural Characterization of Iron(II) and Copper(II) Diphosphates Containing Flattened Metal Oxotetrahedra.
Authors: Keates Adam C. , Wang Qianlong , Weller Mark T. 
Published: February 2014

AbstractSingle crystals of K2FeIIP2O7 (I) are grown by heating a 1:2:1 mixture of FeII oxalate, (NH4)2HPO4, and K2CO3 (N2/5% H2 atmosphere; 1.
ChemInform Abstract: Synthesis and Characterization of the Crystal and Magnetic Structures and Properties of the Hydroxyfluorides Fe(OH)F and Co(OH)F.
Authors: Ben Yahia Hamdi , Shikano Masahiro , Tabuchi Mitsuharu , Kobayashi Hironori , Avdeev Maxim , Tan Thiam Teck , Liu Samuel , Ling Chris D. 
Published: February 2014

AbstractThe new compounds Fe(OH)F and Co(OH)0.86F1.14 are hydrothermally synthesized from aqueous solutions of M(OAc)2 (M: Fe, Co) and LiF (autoclave, 200 °C, 48 h) and characterized by powder and/or single crystal XRD, neutron powder diffraction, and magnetic susceptibility measurements.
ChemInform Abstract: Palladium‐Catalyzed Insertion of N‐Tosylhydrazones and Trapping with Carbon Nucleophiles.
Authors: Zhou Ping‐Xin , Ye Yu‐Ying , Liang Yong‐Min 
Published: February 2014

AbstractA novel and mild Pd‐catalyzed three‐component coupling of vinyl iodides, tosylhydrazones, and carbon nucleophiles is developed.
ChemInform Abstract: Stereocontrolled Synthesis of 1,3‐Diols from Enones: Cooperative Lewis Base‐Mediated Intramolecular Carbonyl Hydrosilylations.
Authors: Medina Casey , Carter Kyle P. , Miller Michael , Clark Timothy B. , O'Neil Gregory W. 
Published: February 2014

AbstractThe hydroxy ketones (II), (X), and (XII), generated from enones by a convenient procedure, are found to undergo base‐mediated hydrosilylation with high diastereoselectivity.
ChemInform Abstract: n‐BuLi/LiCH2CN‐Mediated One‐Carbon Homologation of Aryl Epoxides into Conjugated Allyl Alcohols.
Authors: Tomioka Takashi , Sankranti Rambabu , Yamada Tsuyoshi , Clark Courtney 
Published: February 2014

AbstractStyrene oxides react with an equimolar mixture of BuLi and lithioacetonitrile, which is generated in situ from BuLi and acetonitrile, to give one‐carbon homologated allylic alcohols in a highly regioselective manner.
ChemInform Abstract: Iron‐Catalyzed Aerobic Oxidation of Allylic Alcohols: The Issue of C=C Bond Isomerization.
Authors: Liu Jinxian , Ma Shengming 
Published: February 2014

AbstractAn eco‐friendly, mild protocol for synthesis of α,β‐unsaturated enals or enones from allylic alcohols with retention of the double‐bond configuration is presented.
ChemInform Abstract: Mild Conversion of Propargylic Alcohols to α,β‐Unsaturated Enones in Ionic Liquids (ILs); a New “Metal Free” Life for the Rupe Rearrangement.
Authors: Nandi Ganesh C. , Rathman Benjamin M. , Laali Kenneth K. 
Published: February 2014

AbstractA Rupe/aldol/Nazarov reaction sequence for the synthesis of a bicyclic fused cyclopentanone (XV) is also demonstrated.
ChemInform Abstract: Phosphine‐Catalyzed Annulations Between Modified Allylic Derivatives and Polar Dienes and Substituent Effect on the Annulation Mode.
Authors: Tian Junjun , Sun Haiyun , Zhou Rong , He Zhengjie 
Published: February 2014

AbstractAnnulation reactions of allylic derivatives and dienes are significantly influenced by substituents in both substrates providing [4 + 1] annulation products (II) and [3 + 2] annulation products (VI).
ChemInform Abstract: Dual Role of Allylsamarium Bromide as a Grignard Reagent and a Single Electron Transfer Reagent in the One‐Pot Synthesis of Terminal Olefins.
Authors: Li Ying , Hu Yuan‐Yuan , Zhang Song‐Lin 
Published: February 2014

AbstractA series of terminal alkenes (III) is synthesized by reaction of allylsamarium bromide (II) with aldehydes (I).
ChemInform Abstract: Palladium‐Catalyzed Decarboxylative ortho Acylation of Azobenzenes with α‐Oxocarboxylic Acids.
Authors: Li Zhong‐Yuan , Li Dan‐Dan , Wang Guan‐Wu 
Published: February 2014

AbstractThis protocol is compatible to functional groups and can be used for para, ortho, and unsymmetrical substituted azobenzenes.
ChemInform Abstract: Reduction Aldol‐Type Reaction of α,β‐Unsaturated Esters with Aldehydes or Ketones in the Presence of Rh Catalyst and Et2Zn.
Authors: Sato Kazuyuki , Isoda Motoyuki , Tokura Yoriko , Omura Keiko , Tarui Atsushi , Omote Masaaki , Kumadaki Itsumaro , Ando Akira 
Published: February 2014

AbstractThe title reaction is proposed to involve the formation of a Reformatsky‐type reagent which reacts with aldehydes and ketones to give β‐hydroxyesters.
ChemInform Abstract: Enantioenriched Bifunctional Crotylsilanes for the Asymmetric Synthesis of Orthogonally Protected 2‐Methyl‐1,3‐diols.
Authors: Kim Dongeun , Lee Jae Seung , Lozano Lucia , Kong Suk Bin , Han Hyunsoo 
Published: February 2014

AbstractBifunctional air‐stable crotylsilane (I) undergoes highly enantio‐ and diastereoselective aldehyde crotylation followed by Ir(I)‐catalyzed double diastereoselective allylic etherification.
ChemInform Abstract: γ‐Carbonyl Quinones: Radical Strategy for the Synthesis of Evelynin and Its Analogues by C—H Activation of Quinones Using Cyclopropanols.
Authors: Ilangovan Andivelu , Saravanakumar Shanmugasundar , Malayappasamy Subramani 
Published: February 2014

AbstractOxidative ring opening of cyclopropanols is achieved using a cheap oxidant system consisting of AgNO3 and K2S2O8 under mild conditions.
ChemInform Abstract: Disulfonamide‐Catalyzed Asymmetric Synthesis of β3‐Amino Esters Directly from N‐Boc‐Amino Sulfones.
Authors: Wang Qinggang , Leutzsch Markus , van Gemmeren Manuel , List Benjamin 
Published: February 2014

AbstractThe first asymmetric Mannich reaction of silyl ketene acetals with N‐Boc‐amino sulfones is developed.
ChemInform Abstract: Low‐Temperature Rh‐Catalyzed Asymmetric 1,4‐Addition of Arylboronic Acids to α,β‐Unsaturated Carbonyl Compounds.
Authors: Korenaga Toshinobu , Ko Aram , Shimada Kazuaki 
Published: February 2014

AbstractThis is the first example of a Rh‐catalyzed asymmetric 1,4‐addition below 0°C.
ChemInform Abstract: Investigation on the Coordination Mode of IL‐Supported Diols Used as Phosphine‐Free Ligands for Palladium Catalyzed Heck Reaction.
Authors: Cai Yueqin , Song Gonghua , Chen Xiao 
Published: February 2014

AbstractLigand screening experiments indicate that the activity of the Pd‐catalyst is affected mainly by the π‐electron density of the cationic ring moieties.
ChemInform Abstract: Catalytic Direct Cross‐Coupling of Organolithium Compounds with Aryl Chlorides.
Authors: Hornillos Valentin , Giannerini Massimo , Vila Carlos , Fananas‐Mastral Martin , Feringa Ben L. 
Published: February 2014

AbstractDirect cross coupling of aryl chlorides with aryllithium reagents is achieved under mild conditions using the commercially available Pd2(dba)3/XPhos catalyst system or the air‐stable Pd‐PEPPSI‐IPent (PPI) catalyst.
ChemInform Abstract: Green Access to Novel Spiro Pyranopyrazole Derivatives.
Authors: Pore D. M. , Patil P. B. , Gaikwad D. S. , Hegade P. G. , Patil J. D. , Undale K. A. 
Published: February 2014

AbstractPyrazolone, generated in situ from acetylenic ester (II) and hydrazine hydrate reacts with isatins and malononitrile to provide novel spiro compounds under catalyst‐free conditions.
ChemInform Abstract: Palladium‐Catalyzed Hydrobenzylation of ortho‐Tolyl Alkynyl Ethers by Benzylic C—H Activation: Remarkable Alkynoxy‐Directing Effect.
Authors: Minami Yasunori , Yamada Kotomi , Hiyama Tamejiro 
Published: February 2014

AbstractThe present reaction proceeds not only for silylated alkynes but also for substrates bearing a carbonaceous substituent.
ChemInform Abstract: Palladium/Copper‐Catalyzed Oxidative C—H Alkenylation/N‐Dealkylative Carbonylation of Tertiary Anilines.
Authors: Shi Reny , Lu Lijun , Zhang Hua , Chen Borui , Sha Yuchen , Liu Chao , Lei Aiwen 
Published: February 2014

AbstractFor the first time the aerobic title reaction is presented and furnishes the products in moderate to good yields tolerating a variety of functional groups.
ChemInform Abstract: Copper‐Mediated Direct C2‐Cyanation of Indoles Using Acetonitrile as the Cyanide Source.
Authors: Pan Changduo , Jin Hongming , Xu Pan , Liu Xu , Cheng Yixiang , Zhu Chengjian 
Published: February 2014

AbstractA copper‐mediated C2‐cyanation of indoles using acetonitrile as the cyanide source is achieved through sequential C—C and C—H bond cleavages.
ChemInform Abstract: A Facile Approach for the Asymmetric Synthesis of Oxindoles with a 3‐Sulfenyl‐Substituted Quaternary Stereocenter.
Authors: Dou Xiaowei , Zhou Bo , Yao Weijun , Zhong Fangrui , Jiang Chunhui , Lu Yixin 
Published: February 2014

AbstractMichael addition of various sulfenyloxindoles to nitroolefins proceeds stereoselectively using a quinine catalyst bearing a silyl‐threonine moiety to give oxindoles with a 3‐sulfenyl‐substituted quaternary center in excellent yields and with high diastereoselectivities and excellent enantioselectivities.
ChemInform Abstract: The Synthesis of Benzo[f]isoindole‐1,3‐dicarboxylates via an I2‐Induced 1,3‐Dipolar Cycloaddition Reaction.
Authors: Li Yu‐Jin , Huang Huan‐Ming , Dong Hua‐Qing , Jia Jian‐Hong , Han Liang , Ye Qing , Gao Jian‐Rong 
Published: February 2014

AbstractFor the first time, an iodine‐induced 1,3‐dipolar cycloaddition reaction between quinones and N‐substituted amino esters is reported providing a novel strategy for the synthesis of isoindoles.
ChemInform Abstract: Merging Synthesis and Enantioselective Functionalization of Indoles by a Gold‐Catalyzed Asymmetric Cascade Reaction.
Authors: Chiarucci Michel , Mocci Rita , Syntrivanis Leonidas‐Dimitrios , Cera Gianpiero , Mazzanti Andrea , Bandini Marco 
Published: February 2014

AbstractAn unprecedented Au‐catalyzed cascade reaction sequence of ynals to provide different substituted oxazino‐indoles with high enantioselectivities is described.
ChemInform Abstract: New Routes for the Synthesis of Fused Pyrrole Scaffolds Through Transition Metal‐Free Tandem Reactions.
Authors: Yang Bingchuan , Huang Zixiao , Guan Hegen , Niu Xiaoyi , Li Yanqiu , Fang Shuai , Ma Chen 
Published: February 2014

AbstractDifferent tandem reactions take place when the α‐substituents in the pyrrole substrates are changed (‐Me, CH2Cl, ‐CHCl2, ‐CCl3).
ChemInform Abstract: Samarium(III) Triflate as an Efficient and Reusable Catalyst for Facile Synthesis of Benzoxazoles and Benzothiazoles in Aqueous Medium.
Authors: Gorepatil Pratapsinha B. , Mane Yogesh D. , Ingle Vilas S. 
Published: February 2014

AbstractWater‐tolerant samarium triflate is found to be a suitable catalyst for the condensation of o‐aminophenols and o‐aminothiophenols with various aldehydes in aqueous ethanol.
ChemInform Abstract: Palladium‐Catalyzed β‐Arylation of Silyl Ketene Acetals and Application to the Synthesis of Benzo‐Fused δ‐Lactones.
Authors: Aspin Sam , Lopez‐Suarez Laura , Larini Paolo , Goutierre Anne Sophie , Jazzar Rodolphe , Baudoin Olivier 
Published: February 2014

AbstractSilyl ketene acetals show enhanced chemoselectivity as nucleophiles in Pd‐catalyzed migrative C(sp3)‐H arylations with aryl bromides to give arylpropionic acid esters in good yields.
ChemInform Abstract: Organocatalytic Enantioselective γ‐Aminoalkylation of Unsaturated Ester: Access to Pipecolic Acid Derivatives.
Authors: Xu Jianfeng , Jin Zhichao , Chi Yonggui Robin 
Published: February 2014

AbstractA NHC‐catalyzed cyclocondensation of α,β‐unsaturated esters with hydrazones of type (II) is developed to yield enantioenrichend δ‐lactams.
ChemInform Abstract: Pd(II)‐Catalyzed One‐Pot, Three‐Step Route for the Synthesis of Unsymmetrical Acridines.
Authors: Guo Hai‐Ming , Mao Run‐Ze , Wang Qiao‐Tian , Niu Hong‐Ying , Xie Ming‐Sheng , Qu Gui‐Rong 
Published: February 2014

AbstractA one‐pot amination/cyclization/aromatization sequence is described to construct substituted acridines from 2‐formylphenyl triflates and electron rich anilines in the presence of Pd(II)/XPhos as the catalyst.
ChemInform Abstract: Enantioselective 1,3‐Dipolar Cycloaddition of C,N‐Cyclic Azomethine Imines to Unsaturated Nitriles Catalyzed by NiII—Pigiphos.
Authors: Milosevic Sandra , Togni Antonio 
Published: February 2014

AbstractThe new asymmetric cycloaddition reaction of cyclic azomethine imines with small unsaturated nitriles uses a dicationic Ni(II) complex as a catalyst.
ChemInform Abstract: Cascade Reaction Synthesis of Multisubstituted Bicyclic Pyridone Derivatives.
Authors: Chen Xuebing , Zhu Dandan , Wang Xiaoying , Yan Shengjiao , Lin Jun 
Published: February 2014

AbstractA novel, efficient, economical, and environmentally friendly synthesis allows the preparation of a wide range of different functionalized bicyclic pyridone derivatives under mild reaction conditions.
ChemInform Abstract: Synthesis and Photochromic Properties of Quinoxalino[e]‐Anellated Dimethyldihydropyrene with Planar Chirality.
Authors: Sawada Tsuyoshi , Kihara Takao , Fujikawa Yuya , Narazaki Yu 
Published: February 2014

AbstractDue to its photochemical properties compound (IV) could be used as a photo responsive circularly polarized emission material.