bluuebunny/crossref_metadata_2025_split huggingface dataset:
Piezochromism in Nickel Salicylaldoximato Complexes: Tuning Crystal‐Field Splitting with High Pressure
Authors: Byrne Peter J. , Richardson Patricia J. , Chang John , Kusmartseva Anna F. , Allan David R. , Jones Anita C. , Kamenev Konstantin V. , Tasker Peter A. , Parsons Simon 
Published: May 2012

AbstractThe crystal structures of bis(3‐fluoro‐salicylaldoximato)nickel(II) and bis(3‐methoxy‐salicylaldoximato)nickel(II) have been determined at room temperature between ambient pressure and approximately 6 GPa. The principal effect of pressure is to reduce intermolecular contact distances. In the fluoro system molecules are stacked, and the Ni⋅⋅⋅Ni distance decreases from 3.19 Å at ambient pressure to 2.82 Å at 5.4 GPa. These data are similar to those observed in bis(dimethylglyoximato)nickel(II) over a similar pressure range, though contrary to that system, and in spite of their structural similarity, the salicyloximato does not become conducting at high pressure. Ni–ligand distances also shorten, on average by 0.017 and 0.011 Å for the fluoro and methoxy complexes, respectively. Bond compression is small if the bond in question is directed towards an interstitial void. A band at 620 nm, which occurs in the visible spectrum of each derivative, can be assigned to a transition to an antibonding molecular orbital based on the metal 3d(x2−y2) orbital. Time‐dependent density functional theory calculations show that the energy of this orbital is sensitive to pressure, increasing in energy as the Ni–ligand distances are compressed, and consequently increasing the energy of the transition. The resulting blueshift of the UV‐visible band leads to piezochromism, and crystals of both complexes, which are green at ambient pressure, become red at 5 GPa.
Strapped‐Porphyrin‐Based Molecular Turnstiles
Authors: Lang Thomas , Graf Ernest , Kyritsakas Nathalie , Hosseini Mir Wais 
Published: May 2012

AbstractThe synthesis of a series of molecular turnstiles that contained both H‐bond‐donor and ‐acceptor sites was achieved. Their structures were based on tetra‐aryl X2SnIV porphyrins (X=Cl or OH) as H‐bond‐acceptor sites that were equipped with a rotor that contained a pyridyldiamide moiety as a H‐bond donor. In the solution phase, 1D and 2D NMR spectroscopic analysis showed that switching between the closed state, which resulted from the formation of intramolecular H‐bonds, and the open state of the turnstile was achieved by using external H‐bond‐acceptor molecules, such as DMSO. The solid‐state structure of the closed state of the turnstile was established by single‐crystal X‐ray diffraction.
Controlling the Size and Morphology of Au@Pd Core–Shell Nanocrystals by Manipulating the Kinetics of Seeded Growth
Authors: Li Jing , Zheng Yiqun , Zeng Jie , Xia Younan 
Published: May 2012

AbstractThis article reports a systematic study of the seed‐mediated growth of Au@Pd core–shell nanocrystals with a variety of controlled sizes and morphologies. The key to the success of this synthesis is to manipulate the reaction kinetics by tuning a set of reaction parameters, including the type and concentration of capping agent, the amount of ascorbic acid used as the reducing agent, and the injection rate used for the precursor solution. Starting from Au nanospheres of 11 nm in diameter as the seeds, Au@Pd core–shell nanocrystals with a number of morphologies, including octahedra, concave octahedra, rectangular bars, cubes, concave cubes, and dendrites, could all be obtained by simply altering the reaction rate. For the first time, it was possible to generate Au@Pd nanocrystals with concave structures on the surfaces while their sizes were kept below 20 nm. In addition, the as‐prepared Au@Pd nanocubes can be used as seeds to generate Au@Pd@Au and Au@Pd@Au@Pd nanocrystals with multishelled structures.
ChemInform Abstract: 7Li and 29Si Solid State NMR and Chemical Bonding of La2Li2Si3.
Authors: Langer Thorsten , Dupke Sven , Eckert Hellmut , Matar Samir F. , Winter Martin , Poettgen Rainer 
Published: May 2012

AbstractThe title compound is synthesized from the elements (flowing Ar, Nb ampule, 1000 K, 48 h) and characterized by powder and single crystal XRD, 7Li and 29Si MAS NMR spectroscopy, and DFT electronic structure calculations.
ChemInform Abstract: Crystal Structure and Impedance Study of Samarium Substituted Perovskite: La1‐xSmxMnO3 (x: 0.1—0.3).
Authors: Chourasia Rashmi , Shrivastava O. P. 
Published: May 2012

AbstractLa1‐xSmxMnO3 (x = 0.1, 0.2, 0.3) ceramics are prepared from stoichiometric mixtures of La(NO3)3, Sm2O3, and MnCO3 (Pt crucible, 1200 °C, 12 h) and characterized by powder XRD, SEM, FTIR spectroscopy, and impedance measurements.
ChemInform Abstract: Synthesis of Nanometric LiMnPO4 via a Two‐Step Technique.
Authors: Pivko Maja , Bele Marjan , Techernychova Elena , Logar Natasa Zabukovec , Dominko Robert , Gaberscek Miran 
Published: May 2012

AbstractLiMnPO4 particles with a size of 15—20 nm embedded in a carbon matrix are prepared as cathode materials for Li ion batteries from solutions of Mn(OAc)2, citric acid, and H3PO4 (Ar, 700 °C, 1 h) avoiding the presence of Li in the first step, followed by mixing the product with LiOH and thermal treatment at 700 °C for 12 h in Ar.
ChemInform Abstract: Facile Solvothermal Synthesis of Phase‐Pure Cu4O3 Microspheres and Their Lithium Storage Properties.
Authors: Zhao Lirun , Chen Han , Wang Yingli , Che Hongwei , Gunawan Poernomo , Zhong Ziyi , Li Hong , Su Fabing 
Published: May 2012

AbstractCu4O3 microspheres with diameters of 2—10 μm are solvothermally synthesized from Cu(NO3)2·3H2O dissolved in a mixture of DMF and EtOH (autoclave, 130 °C, 9 h) and characterized by XRD, SEM, TEM, XPS, and electrochemical measurements.
ChemInform Abstract: Elusive Fluoro Sulfinyl Nitrite, FS(O)NO, Produced by Photolysis of Matrix‐Isolated FS(O)2N.
Authors: Zeng Xiaoqing , Beckers Helmut , Neuhaus Patrik , Grote Dirk , Sander Wolfram 
Published: May 2012

AbstractTriplet fluoro sulfonyl nitrene, FS(O)2N is generated by ArF excimer laser irradiation (λ = 193 nm) of FS(O)2N3 isolated in solid noble gas matrices.
ChemInform Abstract: Fluorination of closo,closo‐[B21H18]‐ with aHF and F2 to Yield closo,closo‐[B21H18‐xFx]‐ (x = 1—3) and closo,closo‐[B21F18]‐.
Authors: Schlueter Florian , Bernhardt Eduard 
Published: May 2012

AbstractThe reaction of [B21H18]‐ with anhydrous HF at 100 °C is studied.
ChemInform Abstract: Rapid Microwave Preparation of Highly Efficient Ce3+‐Substituted Garnet Phosphors for Solid State White Lighting.
Authors: Birkel Alexander , Denault Kristin A. , George Nathan C. , Doll Courtney E. , Hery Bathylle , Mikhailovsky Alexander A. , Birkel Christina S. , Hong Byung‐Chul , Seshadri Ram 
Published: May 2012

AbstractCe‐substituted Y3Al5O12 and Lu3Al5O12 garnet phosphors are prepared by microwave heating of mixtures of Y2O3 or Lu2O3, Al2O3, CeO2, and small amounts of NH4F as flux using mixtures of granular and powdered carbon as microwave susceptor.
ChemInform Abstract: {Sn10[Si(SiMe3)3]5}‐: An Anionic Metalloid Tin Cluster from an Isolable SnI Halide Solution.
Authors: Schrenk Claudio , Helmlinger Jens , Schnepf Andreas 
Published: May 2012

AbstractA metastable, dark red solution of SnICl is prepared by reaction of Sn and HCl at 1240 °C followed by condensing the product at ‐196 °C with a mixture of toluene and PBu3 (10:1) and warming to ‐78 °C.
ChemInform Abstract: Reaction Products of Titanium(IV) Sulfate with the Two, Dimeric Precursors, 1,2,3‐Tri‐titanium(IV)‐ and 1,2‐Di‐titanium(IV)‐Substituted α‐Keggin Polyoxometalates (POMs), under Acidic Conditions. A Tetra‐titanium(IV) Oxide Cluster and One Coordinated Sulfate Ion Grafted on a Di‐lacunary Keggin POM.
Authors: Nomiya Kenji , Mouri Yuki , Sakai Yoshitaka , Matsunaga Satoshi 
Published: May 2012

AbstractThe new compound (III) containing a tetra‐titanium(IV) oxide cluster and one coordinated sulfate ion grafted on a di‐lacunary Keggin polyoxometalate is obtained from reactions of (II) with two precursors (I) and (IV) under strongly acidic conditions.
ChemInform Abstract: Organocatalytic “Difficult” Michael Reaction of Ketones with Nitrodienes Utilizing a Primary Amine—Thiourea Based on Di‐tert‐butyl Aspartate.
Authors: Tsakos Michail , Kokotos Christoforos G. 
Published: May 2012

AbstractA novel aspartate‐based bifunctional thiourea—diamine organocatalyst is successfully applied in the asymmetric Michael addition of aryl methyl ketones (II), (IV) as well as acetone (VI) with nitrodienes (I).
ChemInform Abstract: Organocatalytic Asymmetric Synthesis of 3‐Difluoroalkyl 3‐Hydroxyoxindoles.
Authors: Liu Yun‐Lin , Zhou Jian 
Published: May 2012

AbstractChinchona alkaloid derived urea and thiourea derivatives are successfully applied as catalysts in the enantioselective preparation of difluorinated oxindoles such as (III) and (VII).
ChemInform Abstract: Novel 1,3,4‐Heterodiazole Analogues: Synthesis and in vitro Antitumor Activity.
Authors: Taher Azza T. , Georgey Hanan H. , El‐Subbagh Hussein I. 
Published: May 2012

AbstractAcylation of the amino group of (I) and subsequent cyclization on N‐3 afford the annulated imidazooxa/thiadiazolones (III) and (V) while reaction of (I) with malononitrile (VI) in the presence of a calculated amount of triethylamine yields the oxa/thiadiazolopyrimidines (VII).
ChemInform Abstract: Tandem Platinum Dichloride Catalysis and Thermal Reaction of Enynes: Versatile Synthetic Platform Based on Bicyclo[4.1.0]hept‐2‐enes.
Authors: Kim Sun Young , Park Yujung , Son Sori , Chung Young Keun 
Published: May 2012

AbstractA new tandem PtCl2‐catalyzed cycloisomerization and rearrangement reaction of enynes leads to dienals, aryl‐tetrahydro‐1H‐indenes or methylenevinylcyclohexenes depending on the substituents.
ChemInform Abstract: Hofmann‐Type Rearrangement of Imides by in situ Generation of Imide‐Hypervalent Iodines(III) from Iodoarenes.
Authors: Moriyama Katsuhiko , Ishida Kazuma , Togo Hideo 
Published: May 2012

AbstractThe title reaction allows a new and mild access to various amino acid and anthranilic acid derivatives.
ChemInform Abstract: Reaction of Acetals with Various Carbon Nucleophiles under Non‐Acidic Conditions: C—C Bond Formation via a Pyridinium‐Type Salt.
Authors: Fujioka Hiromichi , Yahata Kenzo , Hamada Tomohito , Kubo Ozora , Okitsu Takashi , Sawama Yoshinari , Ohnaka Takuya , Maegawa Tomohiro , Kita Yasuyuki 
Published: May 2012

AbstractAcetals react with various C‐nucleophiles like organocuprates, silyl enol ethers, enamines, and (iso)cyanides via intermediary pyridinium salts.
ChemInform Abstract: Oxidative Mizoroki—Heck‐Type Reaction of Arylsulfonyl Hydrazides for a Highly Regio‐ and Stereoselective Synthesis of Polysubstituted Alkenes.
Authors: Yang Fu‐Lai , Ma Xian‐Tao , Tian Shi‐Kai 
Published: May 2012

AbstractThe reaction tolerates a wide variety of functional groups.
ChemInform Abstract: TIPSOTf‐Promoted Tandem Reaction Through Rearrangement of Epoxides into Aldehydes with Selective Alkyl Migration Followed by Prins‐Type Cyclization to Cyclopentanes.
Authors: Kodama Takeshi , Harada Shingo , Tanaka Takeshi , Tachi Yoshimitsu , Morimoto Yoshiki 
Published: May 2012

AbstractThe intermediate aldehydes undergo direct cyclization to the ajacent isoprenyl substituent to give cyclopentane derivatives with moderate diastereoselectivity.
ChemInform Abstract: Cyclopropylmethyl Palladium Species from Carbene Migratory Insertion: New Routes to 1,3‐Butadienes.
Authors: Zhou Lei , Ye Fei , Zhang Yan , Wang Jianbo 
Published: May 2012

AbstractBoth iodides and bromides can be used with similar results, whereas with chlorides the yields are significantly reduced.
ChemInform Abstract: Synthesis of Conjugated Allenes Through Copper‐Catalyzed γ‐Selective and Stereospecific Coupling Between Propargylic Phosphates and Aryl‐ or Alkenylboronates.
Authors: Yang Mingyu , Yokokawa Natsumi , Ohmiya Hirohisa , Sawamura Masaya 
Published: May 2012

AbstractThe reaction in the absence of H2O produces a complex mixture.
ChemInform Abstract: Selective Palladium‐Catalyzed C—F Activation/Carbon—Carbon Bond Formation of Polyfluoroaryl Oxazolines.
Authors: Yu Daohong , Shen Qilong , Lu Long 
Published: May 2012

AbstractIn the presence of PdCl2(MeCN)2/dppf, some polyfluorophenyl oxazolines are found to undergo efficient Suzuki—Miyaura reaction with aryl and vinylboronic acids to afford ortho‐substituted derivatives.
ChemInform Abstract: Zinc‐Mediated Highly α‐Regioselective Prenylation of Imines with Prenyl Bromide.
Authors: Zhao Li‐Ming , Zhang Shu‐Qing , Jin Hai‐Shan , Wan Li‐Jing , Dou Fei 
Published: May 2012

AbstractA temperature of 120°C is necessary to keep the high α‐regioselectivity and to inhibit the undesired γ‐addition.
ChemInform Abstract: Amination of Electron‐Deficient Aryl Chlorides Promoted by Nanosized Mg(OH)2 under Transition Metal Free Conditions.
Authors: Cui Zhi Hao , Meng Zi Hui , Mi Yan Qing , Wang Peng , Wang Qi , Zhao Lin Man , Cui Ke Jian , Yu Fang , Xu Zhi Bin 
Published: May 2012

AbstractThe simple protocol allows the direct amination of acetophenone and benzophenone bearing a p‐chloro substituent with cyclic secondary amines.
ChemInform Abstract: Broensted Acid Catalyzed Asymmetric Propargylation of Aldehydes.
Authors: Jain Pankaj , Wang Hao , Houk Kendall N. , Antilla Jon C. 
Published: May 2012

AbstractUnder optimized conditions, aromatic or aliphatic aldehydes are propargylated by allenylboronic ester in the presence of a chiral phosphoric acid catalyst to give homopropargylic alcohols with up to 96% enantioselectivity.
ChemInform Abstract: Expedient One‐Pot Synthesis of N‐Aryliminoethers via Mild Electrophilic Activation of Secondary Amides.
Authors: Ghandi Mehdi , Hasani Mohammad , Salahi Saleh 
Published: May 2012

AbstractThe direct transformation of various secondary amides into N‐aryliminoethers (III) and (V) is achieved via mild electrophilic activation with triflic anhydride in the presence of 2‐chloropyridine as base.
ChemInform Abstract: Direct Asymmetric Aldol Reactions in Water Catalyzed by a Highly Active C2‐Symmetrical Bisprolinamide Organocatalyst.
Authors: Delaney Joshua P. , Henderson Luke C. 
Published: May 2012

AbstractA new organocatalyst is used for reactions of cyclohexanone and cyclopentanone in water, performed with low catalyst loadings and without any additives and co‐catalysts.
ChemInform Abstract: Copper‐Catalyzed Direct Oxidative Synthesis of α‐Ketoamides from Aryl Methyl Ketones, Amines, and Molecular Oxygen.
Authors: Du Feng‐Tian , Ji Jian‐Xin 
Published: May 2012

AbstractThe method is limited to aryl/heteroaryl methyl ketones, and cyclic or acyclic amines.
ChemInform Abstract: Convenient and Useful Esterification of Bulky Tertiary Alcohols Using Strontium Compounds.
Authors: Miyoshi Norikazu , Asaoka Masashi , Miyazaki Yasuaki , Tajima Takahiro , Kikuchi Makoto , Wada Makoto 
Published: May 2012

AbstractThe reaction of various esters with metallic Sr and alkyl iodides followed by adding acid chlorides or anhydrides affords the corresponding bulky tertiary alcohol esters in good yields.
ChemInform Abstract: Rhodium‐Catalyzed Cleavage Reaction of Aryl Methyl Ethers with Thioesters.
Authors: Arisawa Mieko , Nihei Yuri , Suzuki Takaaki , Yamaguchi Masahiko 
Published: May 2012

AbstractThe Rh‐catalyzed treatment of aryl methyl ethers with appropriate thioesters results in formation of aryl esters, accompanied by methyl sulfides such as (IV).
ChemInform Abstract: Selective Oxidation of Organic Sulfides by Mononuclear and Dinuclear Peroxotungsten(VI) Complexes.
Authors: Das Siva Prasad , Boruah Jeena Jyoti , Chetry Hiran , Islam Nashreen S. 
Published: May 2012

AbstractA neutral monomeric peroxotungsten complex (I) as well as anionic dinuclear analogues (II) and (III) are found to be stoichiometric reagents for the highly selective oxidation of diorganyl sulfides to sulfoxides or sulfones, depending on the reagent ratio.
ChemInform Abstract: An Efficient Stille Cross‐Coupling Reaction Catalyzed by ortho‐Palladated Complex of Tribenzylamine under Microwave Irradiation.
Authors: Hajipour Abdol R. , Karami Kazem , Rafiee Fatemeh 
Published: May 2012

AbstractIn contrast to aryl iodides and bromides, less reactive aryl chlorides require longer reaction times.
ChemInform Abstract: An Environmentally Friendly Synthesis of Michler′s Ketone Analogues in Water.
Authors: Shirinian Valerii Z. , Shimkin Alexey A. , Lonshakov Dmitry V. , Mailyan Artur K. , Lvov Andrey G. , Krayushkin Michail M. 
Published: May 2012

AbstractA simple synthesis of the analogue (VII) of Michler′s ketone and a variety of related compounds is achieved by nucleophilic substitution of aromatic fluorine with cyclic secondary aliphatic amines in refluxing water.
ChemInform Abstract: Synthesis of 1,3‐Diarylpropenes Through Palladium‐Catalyzed Mizoroki—Heck and Allyl Cross‐Coupling Reactions Using Hydrazones as Ligands.
Authors: Mino Takashi , Koizumi Tomoko , Suzuki Saori , Hirai Kiminori , Kajiwara Kenji , Sakamoto Masami , Fujita Tsutomu 
Published: May 2012

AbstractThe method renders possible the access to various unsymmetrical target compounds as exclusive (E)‐isomers.
ChemInform Abstract: Dimerization of Terminal Arylalkynes in Aqueous Medium by Ruthenium and Acid Promoted (RAP) Catalysis: Acetate‐Assisted (sp)C—(sp2)C Bond Formation.
Authors: Coniglio Alessandra , Bassetti Mauro , Garcia‐Garrido Sergio E. , Gimeno Jose 
Published: May 2012

AbstractDimerization of terminal arylalkynes (I) proceeds under heterogeneous conditions affording enyne derivatives (II) with high (E)‐selectivity.
ChemInform Abstract: Site‐Selective Sonogashira Reactions of 1,4‐Dibromo‐2‐fluorobenzene — Synthesis and Properties of Fluorinated Alkynylbenzenes.
Authors: Reimann Sebastian , Sharif Muhammad , Hein Martin , Villinger Alexander , Wittler Kai , Ludwig Ralf , Langer Peter 
Published: May 2012

AbstractA variety of symmetrical (III) and unsymmetrical bis‐alkynylated fluorobenzenes (V) is prepared starting from dibromofluorobenzene (I) using regioselective Sonogashira cross‐coupling reactions.
ChemInform Abstract: A Copper‐ and Amine‐Free Sonogashira Reaction Employing Chlorophosphine as New and Efficient Ligand.
Authors: Mai Wen Peng , Yuan Jin Wei , Li Zhi Cheng , Sun Gang Chun 
Published: May 2012

AbstractIt is shown that the sterically congested CPP is an efficient ligand for the Sonogashira coupling of aryl bromides.
ChemInform Abstract: Efficient Palladium‐Catalyzed Cross‐Coupling Reaction of Alkynyl Halides with Organoboronic Acids under Aerobic Conditions.
Authors: Tang Jian‐Sheng , Tian Mi , Sheng Wen‐Bing , Guo Can‐Cheng 
Published: May 2012

AbstractA general protocol is developed for the synthesis of unsymmetrical diarylalkynes by Suzuki—Miyaura cross‐coupling of different alkynyl halides with boronic acids under ligand‐free conditions.
ChemInform Abstract: Gold‐Catalyzed Furan/Yne Cyclizations for the Regiodefined Assembly of Multisubstituted Protected 1‐Naphthols.
Authors: Wang Chengyu , Chen Yifeng , Xie Xin , Liu Jun , Liu Yuanhong 
Published: May 2012

AbstractA mild and highly efficient approach to protected 1‐naphthols having enal or enone moieties is reported.
ChemInform Abstract: Synthesis of α‐Indanones via Intramolecular Direct Arylation with Cyclopropanol‐Derived Homoenolates.
Authors: Rosa David , Orellana Arturo 
Published: May 2012

AbstractOptimal reaction conditions are found for the palladium‐catalyzed transformation of tetrasubstituted cyclopropane derivatives (I) and (III) into α‐indanones (II) and (IV).
ChemInform Abstract: Heterocyclic Analogues of 5,12‐Naphthacenequinone. Part 10. Synthesis of Furanoquinizarine and Its New Derivatives.
Authors: Tikhomirov A. S. , Shchekotikhin A. E. , Luzikov Yu. N. , Korolev A. M. , Preobrazhenskaya M. N. 
Published: May 2012

AbstractStarting from the hitherto unknown salicylaldehyde analogue (I), the targeted 4,11‐dihydroxyanthra[2,3‐b]furan‐5,10‐dione (VII) is obtained in a 5‐step procedure.
ChemInform Abstract: A Facile Domino Protocol for the Stereoselective Synthesis of trans‐2,3‐Dihydrobenzofurans and cis‐5,6‐Dihydrofuro[2,3‐d]pyrimidines.
Authors: Vinosha Beermohamed , Perumal Subbu , Renuga Subbiah , Almansour Abdulrahman I. 
Published: May 2012

AbstractCyclocondensation of cyclohexanediones with sulfonylbispropenones under microwaves offers a selective route to trans‐2,3‐disubstituted dihydrofurans (III) in good yields.
ChemInform Abstract: Catalytic Asymmetric [3 + 2] Annulation of Allylsilanes with Isatins: Synthesis of Spirooxindoles.
Authors: Hanhan Nadine V. , Ball‐Jones Nicolas R. , Tran Ngon T. , Franz Annaliese K. 
Published: May 2012

AbstractIn the presence of chiral ScCl2(SbF6)·BIOP, prepared in situ, and TmsCl as an essential promoter, the desired spirooxindoles are obtained with excellent enantioselectivities at room temperature.
ChemInform Abstract: Friedel—Crafts 3‐(2‐Bromobenzoylation) of Indoles and Intramolecular Direct Arylation: An Efficient Route to Indenoindolones.
Authors: Guchhait Sankar K. , Kashyap Maneesh 
Published: May 2012

AbstractZrCl4‐mediated Friedel—Crafts acylation of indoles (I) with 2‐bromobenzyl chlorides followed by Pd‐catalyzed intramolecular C‐2 arylation of the resulting 3‐acylated indoles (III) offers a convenient synthesis of indenoindolones (IV).
ChemInform Abstract: Synthesis, Antimicrobial, Antimycobacterial and Structure—Activity Relationship of Substituted Pyrazolo‐, Isoxazolo‐, Pyrimido‐ and Mercaptopyrimidocyclohepta[b]indoles.
Authors: Yamuna Ezhumalai , Kumar R. Ajay , Zeller Matthias , Prasad Karnam Jayarampillai Rajendra 
Published: May 2012

AbstractClaisen condensation of tetrahydrocycloheptaindolones (I) with ethyl formate (II) yields the intermediates (III) which in one‐pot addition reactions with appropriate nucleophiles afford a library of new title indoles.
ChemInform Abstract: Synthesis and QSAR Study of Novel Cytotoxic Spiro[3H‐indole‐3,2′(1′H)‐pyrrolo [3,4‐c]pyrrole]‐2,3′,5′(1H,2′aH,4′H)‐triones.
Authors: Girgis Adel S. , Stawinski Jacek , Ismail Nasser S. M. , Farag Hanaa 
Published: May 2012

AbstractPyrrolediones (III) react in a 1,3‐dipolar cycloaddition reaction with non‐stabilized azomethine ylides, generated in situ via decarboxylative condensation of isatins (I) and sarcosine (II), to afford spiro compounds (IV) in good yields.
ChemInform Abstract: N‐Aryl‐2‐phenyl‐2,3‐dihydro‐imidazo[1,2‐b]pyrazole‐1‐carboxamides 7‐Substituted Strongly Inhibiting both fMLP‐OMe‐ and IL‐8‐Induced Human Neutrophil Chemotaxis.
Authors: Brullo Chiara , Spisani Susanna , Selvatici Rita , Bruno Olga 
Published: May 2012

AbstractTitle compounds (VI),(VII), and (XIII) are designed and synthesized as multi‐target antiinflammatory agents.
ChemInform Abstract: Microwave‐Assisted Cerium(III)‐Promoted Cyclization of Propargyl Amides to Polysubstituted Oxazole Derivatives.
Authors: Bartoli Giuseppe , Cimarelli Cristina , Cipolletti Roberto , Diomedi Simone , Giovannini Riccardo , Mari Margherita , Marsili Laura , Marcantoni Enrico 
Published: May 2012

AbstractThe 5‐exo‐dig cyclization of propargylic amides proceeds efficiently in the system CeCl3—NaI—I2 under microwave irradiation to afford polysubstituted oxazoles, e.g. (II) and (IV), in moderate to high yields.
ChemInform Abstract: Palladium‐Catalyzed Intramolecular Diamination of Acrylic Esters Using Sulfamates as Nitrogen Source.
Authors: Chavez Patricia , Kirsch Jonathan , Streuff Jan , Muniz Kilian 
Published: May 2012

AbstractThe title reaction selectively provides trans‐substituted bicyclic sulfamates of type (II), which can be converted into derivatives like (III) and (V).
ChemInform Abstract: Ru(II) Complexes Bearing Tertiary Phosphine Ligands: A Novel and Efficient Homogeneous Catalyst for One‐Pot Synthesis of Dihydropyrano[3,2‐c]chromene and Tetrahydrobenzo[b]pyran Derivatives.
Authors: Tabatabaeian Khalil , Heidari Hannaneh , Mamaghani Manouchehr , Mahmoodi Nosrat O. 
Published: May 2012

AbstractThe three‐component condensation results in formation of title compounds (IV) and (IX), mostly within short times.