bluuebunny/crossref_metadata_2025_split huggingface dataset:
ChemInform Abstract: Tuning the Band Gap of PbCrO4 Through High‐Pressure: Evidence of Wide‐to‐Narrow Semiconductor Transitions.
Authors: Errandonea D. , Bandiello E. , Segura A. , Hamlin J. J. , Maple M. B. , Rodriguez‐Hernandez P. , Munoz A. 
Published: February 2014

AbstractCommercial polycrystalline and cleaved platelets from natural PbCrO4 are studied in a diamond anvil cell at ≤ 21 GPa.
ChemInform Abstract: Crystal and Magnetic Structure of Sr2MIrO6 (M: Ca, Mg) Double Perovskites — A Neutron Diffraction Study.
Authors: Kayser Paula , Martinez‐Lope Maria Jesus , Alonso Jose Antonio , Retuerto Maria , Croft Mark , Ignatov Alexander , Fernandez‐Diaz Maria Teresa 
Published: February 2014

AbstractPolycrystalline Sr2CaIrO6 (I) and Sr2MgIrO6 (II) are prepared from citrate‐nitrate precursors using Sr(NO3)2, IrO2, CaCO3, or MgO in aqueous citric acid and HNO3 evaporated at 140 °C and heated to 600 °C to decompose organic residues and NO3 (950 °C, 12 h, O2 pressure of 200 bar (I), 800 °C, 36 h for (II)).
ChemInform Abstract: On the Possibility for Rb‐ and Eu‐Cation Ordering in Type‐I Clathrates: Synthesis and Homogeneity Range of the Novel Compounds Rb8‐xEux(In,Ge)46 (0.6 ≤ x ≤ 1.8).
Authors: Schaefer Marion C. , Bobev Svilen 
Published: February 2014

AbstractStudies in the Rb‐Eu‐In‐Ge system confirm the existence of the phase Rb8‐xEux(In,Ge)46 (0.6 ≤ x ≤ 1.8) crystallizing with the cubic clathrate type‐I structure (space group Pm$\bar 3$n, Z = 1, powder XRD).
ChemInform Abstract: Chemical Composition of Fe—Mo Alloys Obtained by Electrodeposition.
Authors: Kuznetsov Vitaly V. , Golyanin Konstantin E. , Pshenichkina Tatiana V. , Lyakhov Boris F. , Lyashenko Svetlana E. 
Published: February 2014

AbstractThe formation of Fe—Mo deposits from ammonia‐citrate solutions, which make it possible to obtain coatings with high Mo content is examined.
ChemInform Abstract: Syntheses, Structures, and Electronic Properties of a New Series of Tellurides of the Type [Sequestered Cation]2(Tex) (x = 1—4).
Authors: Thiele Guenther , Lichtenberger Niels , Tonner Ralf , Dehnen Stefanie 
Published: February 2014

AbstractThe structures of the tellurides (III) (monoclinic, space groups P21/c, Z = 4), (IV) (P21/n, Z = 4), and (V) (C2/c, Z = 8), (VII) (C2/c, Z = 4), (VIII) (P21/c, Z = 4), (IX) (P21/c, Z = 4), and (X) (trigonal, R$\bar 3$, Z = 3) are determined by single crystal XRD.
ChemInform Abstract: Disulfates from Low Temperature Synthesis in Ionic Liquids: (C5H6N)3Sm (S2O7)3 and (C5H6N)Bi(S2O7)2.
Authors: Weiz Alexander , Bruns Joern , Wickleder Mathias S. 
Published: February 2014

AbstractReactions of Bi(NO3)3 or Sm(NO3)3 with oleum (65% SO3) and the py·SO3 in the ionic liquid [bmim][HSO4] yield single crystals of (pyH)Bi(S2O7)2 (I) and (pyH)3Sm(S2O7)3 (II), resp.
ChemInform Abstract: Chalcogenidoantimonates by Solvothermal Synthesis in Liquid Ammonia.
Authors: Kysliak Oleksandr , Beck Johannes 
Published: February 2014

AbstractThe structures of the SbIII compounds (IV) (triclinic, space group P$\bar 1$, Z = 2) (VII) (monoclinic, space group P21, Z = 2), (IX) (orthorhombic, Pna21, Z = 4), and the SbV compound (V) (P$\bar 1$, Z = 1) are determined by single crystal XRD.
ChemInform Abstract: Ruthenium‐Catalyzed Addition of 1,3‐Diketones to Terminal Alkynes.
Authors: Leotard Benjamin , Fukuyama Takahide , Higashibeppu Yuki , Brancour Celia , Okamoto Hiromi , Ryu Ilhyong 
Published: February 2014

AbstractAcyclic 1,3‐diketones undergo Ru‐catalyzed reaction with terminal alkynes to yield C‐addition products whereas cyclic 1,3‐diones give O‐addition products under similar conditions.
ChemInform Abstract: Iridium‐Catalyzed Direct Dehydroxylation of Alcohols.
Authors: Huang Jian‐Lin , Dai Xi‐Jie , Li Chao‐Jun 
Published: February 2014

AbstractThe simple and highly efficient unprecedented title reaction proceeds via oxidation of the alcohol and a Wolff‐Kishner reduction and can be applied to a series of primary, benzylic, and allylic alcohols.
ChemInform Abstract: Scope and Limitations of Auxiliary‐Assisted, Palladium‐Catalyzed Arylation of Alkylation and sp2 and sp3 C—H Bonds.
Authors: Nadres Enrico T. , Santos Gerson Ivan Franco , Shabashov Dmitry , Daugulis Olafs 
Published: February 2014

AbstractDirect arylation and alkylation of amine and carboxylic acid derivatives is achieved with different aryl and alkyl iodides as well as benzyl and allyl bromides in the presence of a palladium catalyst.
ChemInform Abstract: The Ugi Four‐Component Reaction Enables Expedient Synthesis and Comparison of Photoaffinity Probes.
Authors: Bush Jacob T. , Walport Louise J. , McGouran Joanna F. , Leung Ivanhoe K. H. , Berridge Georgina , van Berkel Sander S. , Basak Amit , Kessler Benedikt M. , Schofield Christopher J. 
Published: February 2014

AbstractThe four‐component Ugi reaction is applied to synthesize biotin and rhodamine tagged compounds (V) of which a series of photoaffinity probes (VIII) for 2‐OG oxygenase is derived.
ChemInform Abstract: Copper‐Catalyzed Intermolecular Regioselective Hydroamination of Styrenes with Polymethylhydrosiloxane and Hydroxylamines.
Authors: Miki Yuya , Hirano Koji , Satoh Tetsuya , Miura Masahiro 
Published: February 2014

AbstractThe copper‐catalyzed regioselective formal hydroamination of styrene with O‐benzoylhydroxylamine and polymethylhydrosiloxane as reductant is developed.
ChemInform Abstract: Asymmetric Hydrogenation of Ketones with H2 and Ruthenium Catalysts Containing Chiral Tetradentate S2N2 Ligands.
Authors: Patchett Ruth , Magpantay Iris , Saudan Lionel , Schotes Christoph , Mezzetti Antonio , Santoro Francesco 
Published: February 2014

AbstractThe first phosphorus‐free, air‐ and moisture‐tolerant Ruthenium‐catalyzed asymmetric hydrogenation of methylketones and cyclic ketones, as well as aldehydes using hydrogen is presented.
ChemInform Abstract: Dicationic Platinum Porphyrin Catalyzed Cycloisomerization of Enynes.
Authors: Hasegawa Makoto , Kurahashi Takuya , Matsubara Seijiro 
Published: February 2014

AbstractA dicationic Pt(IV)‐porphyrin tetrafluoroborate is applied as efficient catalyst for the cycloisomerization of enynes (I) to vinyl cyclopentanes (II).
ChemInform Abstract: Spiro‐bicyclo[2.2.2]octane Derivatives as Paclitaxel Mimetics. Synthesis and Toxicity Evaluation in Breast Cancer Cell Lines.
Authors: Manner Sophie , Oltner Viveca T. , Oredsson Stina , Ellervik Ulf , Frejd Torbjoern 
Published: February 2014

AbstractSeveral spiro‐bicyclo[2.2.2]octane derivatives are prepared as paclitaxel mimetics via a double Michael addition of enol ether (I) with methyl acrylate (II) and a ring‐closing metathesis as key steps.
ChemInform Abstract: A Synthetic Approach to Tetrasubstituted Alkenes: Using β‐Carbonyl Benzothiazol‐2‐yl Sulfones as Electrophiles.
Authors: Ou Song , Cao Chun‐Ru , Jiang Min , Liu Jin‐Tao 
Published: February 2014

AbstractThe reaction gives β‐alkoxy sulfone intermediates undergoing Smiles rearrangement and spontaneous elimination to yield tetrasubstituted enynes and cyanoalkenes, respectively.
ChemInform Abstract: Nucleophilic Trifluoromethylation of Conjugated Acceptors via Phenyl Trifluoromethyl Sulfone.
Authors: Sakavuyi Kaumba , Petersen Kimberly S. 
Published: February 2014

AbstractThe title reaction can be also applied to the synthesis of compound (IX), a useful precursor for the preparation of befloxatone, which is a reversible and selective monoamine oxidase A inhibitor.
ChemInform Abstract: SnCl4 Mediated Synthesis of γ‐Amino Ketones Derivatives via the Ring‐Opening Reaction of 4,5‐Dihydropyrroles.
Authors: Zhang Guisheng , et al. et al. 
Published: February 2014

AbstractAn alternative route to γ‐amino ketones via a SnCl4·5H2O mediated ring‐opening reaction of 4,5‐dihydropyrroles is presented.
ChemInform Abstract: A Fluorous Proline Organocatalyst with Acetone‐Dependent Aldolase Behavior.
Authors: Miranda Pedro O. , Llanes Patricia , Torkian Laleh , Pericas Miquel A. 
Published: February 2014

AbstractA fluorous tagged triazolylproline is developed and used as catalyst for the aldol reaction of acetone with benzaldehydes.
ChemInform Abstract: Regioselective and Stereoselective Entry to β,β‐Disubstituted Vinyl Ethers via the Sequential Hydroboration/Suzuki—Miyaura Coupling of Ynol Ethers.
Authors: Cui Weijian , Mao Mengyi , He Zuying , Zhu Gangguo 
Published: February 2014

AbstractThis method uses a readily available catalytic system, has a broad substrate scope, and gives the title compounds in good yields with excellent stereo‐ and regioselectivity.
ChemInform Abstract: Olefin Hydroaryloxylation Catalyzed by Pincer—Iridium Complexes.
Authors: Haibach Michael , Guan Changjian , Wang David Y. , Li Bo , Lease Nicholas , Steffens Andrew M. , Krogh‐Jespersen Karsten , Goldman Alan S. 
Published: February 2014

AbstractAn intensive investigation of the reaction mechanism is presented.
ChemInform Abstract: Imidazolium‐Based Chiral Ionic Liquids: Synthesis and Application.
Authors: Suzuki Yumiko , Wakatsuki Junichiro , Tsubaki Mariko , Sato Masayuki 
Published: February 2014

AbstractIn the presented study the synthesis of recyclable chiral ionic liquids from tartaric acid is described along with their application as chiral solvents in the Michael addition of malonates to chalcones.
ChemInform Abstract: Synthesis of Salts of New Arylamides of 2‐Hydroxy‐5‐nitroso‐4,6‐dimethylisophthalic Acid
Authors: Fedorova N. A. , Slaschinin D. G. , Lyubyashkin A. B. , Peterson I. V. , Tovbis M. S. 
Published: February 2014

Abstractvia intermolecular cyclization of arylamides of acetonedicarboxylic acid (I) with isonitrosoacetylacetone (II)
ChemInform Abstract: Rhodium Catalyzed Cyanation of Chelation Assisted C—H Bonds.
Authors: Chaitanya Manthena , Yadagiri Dongari , Anbarasan Pazhamalai 
Published: February 2014

AbstractThis cyanation reaction employs N‐cyano‐N‐phenyl‐p‐methylbenzenesulfonamide (II) as an efficient cyanating reagent.
ChemInform Abstract: Synthesis and Antiinflammatory Activity of Three Nitro Chalcones.
Authors: Gomez‐Rivera Abraham , Aguilar‐Mariscal Hidemi , Romero‐Ceronio Nancy , Roa‐de la Fuente Luis F. , Lobato‐Garcia Carlos E. 
Published: February 2014

AbstractThe three new compounds (III) show antiinflammatory protective, time dependent effect by both oral and intraperitoneal administration.
ChemInform Abstract: Electrostatic Repulsion and Hydrogen‐Bonding Interactions in a Simple N‐Aryl‐L‐valinamide Organocatalyst Control the Stereoselectivity in Asymmetric Aldol Reactions.
Authors: Tanimura Yuya , Yasunaga Kenji , Ishimaru Kaori 
Published: February 2014

AbstractA relatively inexpensive catalyst easily prepared from L‐valine is applied to asymmetric aldol and cross‐aldol reactions [reaction of (VI)].
ChemInform Abstract: Formal meta‐Specific Intramolecular Friedel—Crafts Allylic Alkylation of Phenols Through a Spirocyclization—Dienone—Phenol Rearrangement Cascade.
Authors: Yoshida Mariko , Nozaki Tomoyuki , Nemoto Tetsuhiro , Hamada Yasumasa 
Published: February 2014

AbstractThe Lewis acid catalyzed reaction yields 3,4‐disubstituted phenols from dienones in a highly efficient rearrangement or from allylic substituted phenoles in a cascade reaction.
ChemInform Abstract: Synthesis of Diarylated Aromatic Hydrocarbons by Dehydroxylation of Diols Using the Titanium(IV) Chloride and Triethylamine Reagent System.
Authors: Periasamy Mariappan , Beesu Mallesh , Shanmugaraja Masilamani 
Published: February 2014

AbstractNotable features of the title process are the simple procedure, the mild reaction conditions, and the substrates are readily accessible.
ChemInform Abstract: PCy3‐Catalyzed Ring Expansion of Aziridinofullerenes with CO2 and Aryl Isocyanates Evidence for a Two Consecutive Nucleophilic Substitution Pathway on the Fullerene Cage.
Authors: Takeda Youhei , Kawai Hajime , Minakata Satoshi 
Published: February 2014

AbstractSeveral oxazolidinone‐fused fullerenes are synthesized.
ChemInform Abstract: I2—PPh3 Mediated Spiroannulation of Unsaturated β‐Dicarbonyl Compounds. The First Synthesis of (.+‐.)‐Negundoin A.
Authors: Tapia Ruben , Cano M. Jose , Bouanou Hanane , Alvarez Esteban , Alvarez‐Manzaneda Ramon , Chahboun Rachid , Alvarez‐Manzaneda Enrique 
Published: February 2014

AbstractUnsaturated β‐dicarbonyl compounds, e.g. (I), (III)/(VI), (VIII), and (X) undergo intramolecular cyclization by reaction with a catalytic amount of I2—PPh3 affording spiro enol ether derivatives with complete regio‐ and stereoselectivity.
ChemInform Abstract: Efficient One‐Pot Synthesis of Multi‐Substituted Dihydrofurans by Ruthenium(II)‐Catalyzed [3 + 2] Cycloaddition of Cyclic or Acyclic Diazodicarbonyl Compounds with Olefins.
Authors: Xia Likai , Lee Yong Rok 
Published: February 2014

AbstractThe reaction can be carried out under conventional or microwave‐assisted conditions.
ChemInform Abstract: Palladium‐Catalyzed Selective Decarboxylative Coupling Reaction versus Direct C—H Arylation for Arylation of Heteroaromatics.
Authors: Fu Haiyan , Chen Hua , Doucet Henri 
Published: February 2014

AbstractConditions for the selective Pd‐catalyzed decarboxylative 2‐arylation of 3‐substituted thiophene and furan derivatives (I) and (IV) bearing an ester moiety at C2 position are established.
ChemInform Abstract: Synthesis of 3‐Alkoxybenzo[c]thiophen‐1(3H)‐ones by Hydrolysis of N‐Substituted 3‐Alkoxybenzo[c]thiophen‐1(3H)‐imines Derived from 1‐Bromo‐2‐(dialkoxymethyl)benzenes and Isothiocyanates.
Authors: Kobayashi Kazuhiro , Kuroda Minami , Kanbe Yuuki 
Published: February 2014

AbstractBenzothiophene‐imines (IV) and (VIII) are prepared and subjected to acidic hydrolysis to afford title compounds (V) and (IX), resp., which are difficult to prepare by previously reported methods.
ChemInform Abstract: First Example of the Synthesis of Pyrrolecarbaldehyde with Electron‐Deficient Acetylene Substituents
Authors: Sobenina L. N. , Markova M. V. , Tomilin D. N. , Tret'yakov E. V. , Ovcharenko V. I. , Mikhaleva A. I. , Trofimov B. A. 
Published: February 2014

Abstractvia a “palladiumless” cross‐coupling of acetal (I) with alkyne (II) as the key step
ChemInform Abstract: Asymmetric Domino Synthesis of Indanes Bearing Four Contiguous Stereocenters Catalyzed by Sub‐Mol% Loadings of a Squaramide in Minutes.
Authors: Loh Charles C. J. , Hack Daniel , Enders Dieter 
Published: February 2014

AbstractAn organocatalytic Michael—Henry domino reaction affording polyfunctionalized indane derivatives (III) with high diastereo‐ and enantioselectivity is reported.
ChemInform Abstract: Montmorillonite Clay Catalyzed Three Component, One‐Pot Synthesis of 5‐Hydroxyindole Derivatives.
Authors: Reddy B. V. Subba , Reddy P. Sivaramakrishna , Reddy Y. Jayasudhan , Bhaskar N. , Reddy B. Chandra Obula 
Published: February 2014

AbstractThe synthesis of a variety of 5‐hydroxyindole derivatives is achieved via the Nenitzescu reaction using montmorillonite clay as simple, cost‐effective and recyclable catalyst.
ChemInform Abstract: Heteroannulation of Arynes with N‐Aryl‐α‐aminoketones for the Synthesis of Unsymmetrical N‐Aryl‐2,3‐disubstituted Indoles: An Aryne Twist of Bischler—Moehlau Indole Synthesis.
Authors: Bunescu Ala , Piemontesi Cyril , Wang Qian , Zhu Jieping 
Published: February 2014

AbstractThe title reaction allows for the first time a one‐step synthesis of unsymmetrical 2,3‐dialkyl substituted indoles in a regioselective manner.
ChemInform Abstract: L‐Proline Catalyzed Stereoselective Synthesis of (E)‐Methyl‐α‐indol‐2‐yl‐β‐aryl/alkyl Acrylates: Easy Access to Substituted Carbazoles, γ‐Carbolines and Prenostodione.
Authors: Biswas Soumen , Jaiswal Pradeep Kumar , Singh Shivendra , Mobin Shaikh M. , Samanta Sampak 
Published: February 2014

AbstractThe condensation of indolylacetate (I) with aromatic aldehydes (II) gives rise to (E)‐acrylates (III), which are used as starting compounds in the synthesis of prenostodione (VII), carbazoles (V), and γ‐carbolines (VI).
ChemInform Abstract: 1,1‐Diamino‐2‐nitroethylenes as Excellent Hydrogen Bond Donor Organocatalysts in the Michael Addition of Carbon‐Based Nucleophiles to β‐Nitrostyrenes.
Authors: da Silva Rodrigo C. , da Silva Gustavo P. , Sangi Diego P. , de M. Pontes Joao G. , Ferreira Antonio G. , Correa Arlene G. , Paixao Marcio W. 
Published: February 2014

AbstractThe application of the title catalysts is presented in the Michael—addition of several functionalized nucleophiles to β—nitrostyrenes under mild conditions.
ChemInform Abstract: Lewis Base Catalyzed Asymmetric Substitution/Diels—Alder Cascade Reaction: A Rapid and Efficient Construction of Enantioenriched Diverse Tricyclic Heterocycles.
Authors: Zou Gong‐Feng , Pan Feng , Liao Wei‐Wei 
Published: February 2014

AbstractA novel approach to construct diverse enantioenriched tricyclic heterocycles is developed using a hitherto not described asymmetric, organocatalytic allylic substitution/Diels—Alder cascade sequence.
ChemInform Abstract: Cu(I)‐Catalyzed Synthesis of 2‐Substituted Benzimidazoles from 2‐Iodoanilines and Amides.
Authors: Yuan Hua , Chen Yongxin , Song Jinli , Chen Chunxia , Chen Baohua 
Published: February 2014

AbstractThe novel method allows the synthesis of benzimidazoles in short reaction times and shows good functional group tolerance.
ChemInform Abstract: An Efficient Synthesis of Trisubstituted Oxazoles via Chemoselective O‐Acylations and Intramolecular Wittig Reactions.
Authors: Tsai Yi‐Ling , Fan Yu‐Shiou , Lee Chia‐Jui , Huang Chan‐Hui , Das Utpal , Lin Wenwei 
Published: February 2014

AbstractA general procedure for the synthesis of highly substituted oxazoles (III), (V)/(VI), and (VIII) from acyl imines (I) is described.
ChemInform Abstract: Diastereoselective Synthesis of Racemic 3,4‐cis and 3,4‐trans Isomers of Isoxazolidine‐4,5‐diols and Their Derivatives.
Authors: Fischer Robert , Stanko Boris , Pronayova Nadezda 
Published: February 2014

AbstractThis is a study on the dihydroxylation of 2,3‐dihydroisoxazoles towards the title compounds, e.g. (II) and (III), as well as their derivatization by protection and substitution reactions (not shown).
ChemInform Abstract: Microwave Assisted One Pot Green Synthesis of Novel Isoxazoline Derivatives Using N‐Methyl‐α‐chloro Nitrone and Their Antibacterial Activities.
Authors: Chakraborty Bhaskar , Sharma Prawin Kumar , Samanta Amalesh 
Published: February 2014

AbstractThe title compounds are obtained as diastereomeric mixture in a 1,3‐dipolar cycloaddition reaction of nitrone (I) with different alkynes (II).
ChemInform Abstract: Synthesis of Both Kinetically and Thermodynamically Controlled Diastereomeric Pairs of Bis‐Isoxazolidines from Dibenzylideneacetone: Their Reactivity and Biological Activity.
Authors: Bhattacharyya Bhaswati , Kundu Arijit , Dhara Kaliprasanna , Guchhait Nikhil , Pal Bijan K. , Hazra Sudipta , Debnath Sukalyani , Hazra Banasri , Patra Amarendra 
Published: February 2014

AbstractNew compounds (V) and (VI) are screened for their anticancer and antibacterial activities.
ChemInform Abstract: Enantioselective Synthesis of 5‐Trifluoromethyl‐2‐isoxazolines and Their N‐Oxides by [Hydroxy(tosyloxy)iodo]benzene‐Mediated Oxidative N—O Coupling.
Authors: Kawai Hiroyuki , Okusu Satoshi , Tokunaga Etsuko , Shibata Norio 
Published: February 2014

AbstractThe synthesis of the previously unknown title compounds offers an alternative way to prepare antiparasitic 5‐trifluoromethyl‐2‐isoxazolines (V).
ChemInform Abstract: Synthesis and Study of Benzothiazole Conjugates in the Control of Cell Proliferation by Modulating Ras/MEK/ERK‐Dependent Pathway in MCF‐7 Cells.
Authors: Kamal Ahmed , Faazil Shaikh , Ramaiah M. Janaki , Ashraf Md. , Balakrishna M. , Pushpavalli S. N. C. V. L. , Patel Nibedita , Pal‐Bhadra Manika 
Published: February 2014

AbstractSome of the new compounds (III) (18 examples) exhibit significant cytotoxic effects in MCF‐7 cells.
ChemInform Abstract: A Ligand Free Copper(II) Catalyst is as Effective as a Ligand Assisted Pd(II) Catalyst Towards Intramolecular C—S Bond Formation via C—H Functionalization.
Authors: Banerjee Arghya , Santra Sourav Kumar , Rout Saroj Kumar , Patel Bhisma K. 
Published: February 2014

AbstractThe ligand free Cu(II) catalyzed oxidative cyclization of in situ formed arylthioureas is equally effective for both electron donating as well as electron withdrawing groups in the aryl ring.
ChemInform Abstract: Direct Access to Triazole‐Olefins Through Catalytic Cycloaddition of Azides to Unsaturated Aldehydes.
Authors: Li Wenjun , Jia Qianfa , Du Zhiyun , Wang Jian 
Published: February 2014

AbstractAn organocatalytic inverse‐electron‐demand 1,3‐dipolar cycloaddition is presented yielding substituted triazoles from unsaturated aldehydes and azides with a high level of regioselectivity.
ChemInform Abstract: Facile Synthesis of 4,5,6a,7‐Tetrahydrodibenzo[de,g]chromene Heterocycles and Their Transformation to Phenanthrene Alkaloids.
Authors: Kapadia Nirav , Harding Wayne 
Published: February 2014

AbstractA microwave assisted and Pd‐catalyzed oxa‐Pictet Spengler reaction is developed to synthesize tetracyclic isochromane derivatives (IV).
ChemInform Abstract: Re‐Cyclization of 3‐(E)‐Methyl 3‐(4‐Oxo‐4H‐chromen‐3‐yl)acrylate with Amines and Their Potential Mechanism.
Authors: Zhang Yikai , Lv Zhiliang , Zhang Mingfeng , Li Ke 
Published: February 2014

AbstractPotassium carbonate promoted reaction of chromen‐3‐yl acrylates (I) and (IV) with primary amines results in an interesting ring opening/ring closing process to give pyridones in varying yields.
ChemInform Abstract: Influence of Guanidinium Salts and Other Ionic Liquids on the Three‐Component Aza‐Diels—Alder Reaction.
Authors: Mert‐Balci Fadime , Imrich Hans‐Georg , Conrad Juergen , Beifuss Uwe 
Published: February 2014

AbstractThree‐component reactions of aniline, benzaldehyde, and dienophiles can be promoted by ionic liquids like imidazolium salts and guanidinium salts under thermal as well as microwave conditions.
ChemInform Abstract: Protecting Group Directed Cyclization: Asymmetric Synthesis of Both cis‐ and trans‐Dihydrexidine from a Common Precursor.
Authors: Malhotra Rajesh , Chakrabarti Sagar , Dey Tushar K. , Dutta Swarup , Alapati Krishna Babu , Dutta Shantanu , Roy Subho , Basu Sourav , Hajra Saumen 
Published: February 2014

AbstractFor the first time a divergent and scalable synthesis of the dimethyl ethers (II) and (VI) of the title compounds is described starting from L‐serine derived materials.
ChemInform Abstract: Highly Regioselective Addition of Organozinc Reagents to 2‐Oxo‐1,2‐dihydropyrimidine‐5‐carboxylates Activated by BF3·OEt2: Synthesis of 2‐Oxo‐1,2,3,4‐tetrahydropyrimidine‐5‐carboxylates.
Authors: Singh Kamaljit , Chopra Rakesh 
Published: February 2014

AbstractThe C—4 position of these compounds has an important influence on their calcium channel blocking activity.
ChemInform Abstract: Synthesis of Highly Functionalized Macrocycles by Tandem Multicomponent Reactions and Intramolecular Sonogashira Cross‐Coupling.
Authors: Niu Teng‐fei , Sun Mu , Lv Mei‐fang , Yi Wen‐bin , Cai Chun 
Published: February 2014

AbstractAn efficient strategy is elaborated for the preparation of 15‐membered macrocycles (VII) starting from readily available precursors.
ChemInform Abstract: Straightforward Synthesis and Crystal Structures of the 3‐Piperazine‐bisbenzoxaboroles and Their Boronic Acid Analogues.
Authors: Adamczyk‐Wozniak Agnieszka , Borys Krzysztof M. , Madura Izabela D. , Michalek Stanislaw , Pawelko Alicja 
Published: February 2014

AbstractA convenient synthesis of biologically active 3‐piperazine‐bisbenzoxaboroles from ortho‐formyl substituted phenylboronic acids (I) is developed and the reductive cleavage to bisboronic acids (IV) is shown.
ChemInform Abstract: Ligand‐Controlled Remarkable Regio‐ and Stereodivergence in Intermolecular Hydrosilylation of Internal Alkynes: Experimental and Theoretical Studies.
Authors: Ding Shengtao , Song Li‐Juan , Chung Lung Wa , Zhang Xinhao , Sun Jianwei , Wu Yun‐Dong 
Published: February 2014

AbstractBy a simple variation of the ligands in the ruthenium catalysts an unprecedented switching of product regio‐ and stereoselectivity is observed.