bluuebunny/crossref_metadata_2025_split huggingface dataset:
From Regioselective Condensation to Regioselective N‐Alkylation: A Novel and Environmentally Benign Strategy for the Synthesis of N,N′‐Alkyl Aryl Ureas and N,N′‐Dialkyl Ureas
Authors: Li Feng , Sun Chunlou , Shan Haixia , Zou Xiaoyuan , Xie Jianjiang 
Published: January 2013

AbstractA protocol for the synthesis of N,N′‐alkyl aryl ureas and N,N′‐dialkyl ureas by transition metal‐catalyzed regioselective N3‐alkylation of the N‐monosubstituted ureas with alcohols was proposed and accomplished. In the presence of an iridium/base system, the desired N,N′‐alkyl aryl ureas and N,N′‐dialkyl ureas were obtained with 70–93 % yields, and no isomeric N1‐alkylated and N3‐dialkylated products were formed in all cases. From both synthetic and environmental point of views, the reaction is highly attractive because of easily available starting materials, high atom efficiency and the formation of water as the only side product. Apparently, the research opens up the design of regioselective N‐alkylation of amines with alcohols based on the regioselective condensation of amines with aldehydes, facilitating the progress of the “hydrogen autotransfer” (or “hydrogen‐borrowing”) process.
Hydrothermal Treatment of Carboxy‐methyl Cellulose Salt: Formation and Decomposition of Furans, Pentenes and Benzenes
Authors: Kröger M. , Hartmann F. , Klemm M. 
Published: January 2013

AbstractCarboxymethyl cellulose salt as a model compound was treated hydrothermally to understand the degradation and formation of several chemicals (furfural, 5‐(hydroxymethyl)‐furancarboxaldehyde, and benzene derivatives) that might be interesting as platform chemicals or fuels. To realize a manageable control, closed quartz capillaries were chosen as reactor. Experiments were conducted at temperatures from 250 (subcritical water) to 450 °C (supercritical water) and reaction times from 1 to 60 min. By studying the gas chromatography‐mass spectrometry analysis results of the liquid products, their formation and degradation were detected. It was observed that certain substances only appear for several minutes and are then degraded, while for others the concentration increases at lower rate and keeps stable even for long reaction times. The formation of several benzoic structures from a non‐ring‐structured precursor showed that different reaction mechanisms are involved. Different reaction temperatures showed good correlation to the formation rate of several substances.
ChemInform Abstract: Pressure‐Induced Crystal Structure and Spin‐State Transitions in Magnetite (Fe3O4).
Authors: Ju Sheng , Cai Tian‐Yi , Lu Hai‐Shuang , Gong Chang‐De 
Published: January 2013

AbstractPressure‐induced phase transitions in Fe3O4 are characterized by first‐principles DFT calculations.
ChemInform Abstract: Theoretical Prediction of the Fundamental Properties for the Ternary Li2PtH6 and Na2PtH6
Authors: Ghebouli M. A. , Choutri H. , Bouarissa N. , Ghebouli B. , Bouhemadou A. , Soyalp F. , Ucgun E. , Ocak H. Y. 
Published: January 2013

AbstractDFT based prediction of elastic moduli, energy gaps, and optical parameters of the indirect gap semiconductors of title
ChemInform Abstract: Dumbbells of Five‐Connnected Silicon Atoms and Superconductivity in the Binary Silicides MSi3 (M: Ca, Y, Lu).
Authors: Schwarz Ulrich , et al. et al. 
Published: January 2013

AbstractThe new metastable title compounds are prepared by high pressure/high temperature reaction of the elements (Ta ampules, 12—15 GPa, 900—1400 K).
ChemInform Abstract: Chemical Manipulation of Magnetic Ordering in Mn1‐xSnxBi2Se4 Solid‐Solution.
Authors: Ranmohotti Kulugammana G. S. , Djieutedjeu Honore , Poudeu Pierre F. P. 
Published: January 2013

AbstractTitle solid solutions with x = 0, 0.3, and 0.75 are synthesized from the elements (723—1000 K, 6—7 d) and characterized by single crystal XRD, XPS, and magnetic susceptibility measurements.
ChemInform Abstract: Lanthanoid Single‐Ion Magnets Based on Polyoxometalates with a 5‐Fold Symmetry: The Series [LnP5W30O110]12‐ (Ln3+: Tb, Dy, Ho, Er, Tm, and Yb).
Authors: Cardona‐Serra S. , Clemente‐Juan J. M. , Coronado E. , Gaita‐Arino A. , Camon A. , Evangelisti M. , Luis F. , Martinez‐Perez M. J. , Sese J. 
Published: January 2013

AbstractThe compounds K12LnP5W30O110 ·nH2O (Ln3+: Tb, Dy, Ho, Er, Tm, and Yb) are prepared from aqueous solutions of K12.5Na1.5 [NaP5W30O110] and LnCl3 (autoclave, 160 °C, 24 h) and characterized by static and dynamic magnetic measurements.
ChemInform Abstract: Super‐Long Barnesite Na2V6O16·3H2O Nanobelts for Aligned Film Electrodes with Enhanced Anisotropic Electrical Transport.
Authors: Xue Yan , Wu Jian , Zhang Hanyang , Luo Yi , Zhang Xiaodong , Du Zuliang , Xie Yi 
Published: January 2013

AbstractNa2V6O16·3H2O nanobelts with lengths of 100—200 μm are hydrothermally synthesized from aqueous solutions of Na3VO4 and HCl (autoclave, 200 °C, 24 h, 99% yield).
ChemInform Abstract: Electrochemical Performance of NASICON Type Carbon‐Coated LiTi2(PO4)3 with a Spinel LiMn2O4 Cathode.
Authors: Aravindan V. , Chuiling W. , Madhavi S. 
Published: January 2013

AbstractNASICON‐type LiTi2(PO4)3 particles are synthesized by a modified Pechini‐type polymerizable complex method at 1000 °C in air (24 h).
ChemInform Abstract: High‐Capacity Micrometer‐Sized Li2S Particles as Cathode Materials for Advanced Rechargeable Lithium‐Ion Batteries.
Authors: Yang Yuan , Zheng Guangyuan , Misra Sumohan , Nelson Johanna , Toney Michael F. , Cui Yi 
Published: January 2013

AbstractThe electrochemical study of Li2S as cathode material shows that a large potential barrier (1 V) exists at the beginning of the charge process.
ChemInform Abstract: Chemical Intercalation of Zerovalent Metals into 2D Layered Bi2Se3 Nanoribbons.
Authors: Koski Kristie J. , Wessells Colin D. , Reed Bryan W. , Cha Judy J. , Kong Desheng , Cui Yi 
Published: January 2013

AbstractZerovalent metal atoms (such as Cu, Ag, Sn, Au, In, Co, Fe, Ni) are intercalated into two‐dimensional layered Bi2Se3 nanoribbons using disproportionation redox reactions or carbonyl decomposition to generate dilute zerovalent metal atoms in a refluxing solution.
ChemInform Abstract: Large‐Scale and Facile Preparation of Pure Ammonia Borane Through Displacement Reactions.
Authors: Chen Xuenian , Bao Xiaoguang , Billet Beau , Shore Sheldon G. , Zhao Ji‐Cheng 
Published: January 2013

AbstractPure NH3BH3 is prepared at the 100 g scale by displacement reactions of either NH3 and Me2S·BH3 with 94% yield, or NH3 and Ph‐NMe2·BH3 with 91% yield, with both reactions performed in toluene at room temperature.
ChemInform Abstract: A New “Fully Reduced” Polyoxovanadate Constructed from Nanosized Triangle‐Shaped [VIII3VIV18P6 O60(DACH)3]9‐ Cluster Anions Exhibiting Ferrimagnetic Interactions.
Authors: Wang Cong‐Ling , Zhang Zhi‐bin , Fu Jie , Xu Yan , Zhu Dun‐ru 
Published: January 2013

AbstractThe new compound NH4{ [Zn4(DACH)7(H2O)3] [VIII3VIV18P6 O60(DACH)3]}·19H2O (DACH: 1,2‐diaminocyclohexane) is synthesized by hydrothermal reaction of NH4VO3, Zn(OAc)2, DACH, H3PO4, and H2O (autoclave, 160 °C, 6 d).
ChemInform Abstract: Self‐Assembly and Photocatalytic Properties of Polyoxoniobates: {Nb24O72}, {Nb32O96}, and {K12Nb96O288} Clusters.
Authors: Huang Peng , Qin Chao , Su Zhong‐Min , Xing Yan , Wang Xin‐Long , Shao Kui‐Zhan , Lan Ya‐Qian , Wang En‐Bo 
Published: January 2013

AbstractThe new compounds (III), (IV), and (V) with molecular triangle, molecular square, and cuboctahedral molecular cage geometries, respectively, are characterized by single crystal XRD and electrospray ionization mass spectrometry.
ChemInform Abstract: Two‐Dimensional Antiferromagnetism in the [Mn3+xO7][Bi4O4.5‐y] Compound with a Maple‐Leaf Lattice.
Authors: Aliev Almaz , Huve Marielle , Colis Silviu , Colmont Marie , Dinia Aziz , Mentre Olivier 
Published: January 2013

AbstractBlack single crystals of Bi4Mn3O11.5 are obtained besides Bi6O8Cl from the solid state reaction of Bi2O3, BiOCl, PbO, and MnO2 (sealed Au tube, 1173 K, 12 h).
ChemInform Abstract: Crystalline Iron Oxohalide Nanotube Pea Pods.
Authors: Zimmermann Iwan , Johnsson Mats , Lidin Sven 
Published: January 2013

AbstractSingle crystals of Fe7Sb3 (PO4)3O6Cl3 and Fe7Sb3 (PO4)3O6Br3 are prepared from 2:1:1:1:1:1 mixtures of Sb2O3, Fe2O3, FeO, FeCl3, FeCl2, and (NH4)H2PO4, and 3:1:6:1:6:6 mixtures of Sb2O3, Fe2O3, FeO, FeBr3, FeBr2, and (NH4)H2PO4, respectively (silica tubes, 500 °C, 70 h).
ChemInform Abstract: Iron‐Catalyzed Cross‐Coupling of Halohydrins with Aryl Aluminum Reagents: A Protecting‐Group‐Free Strategy Attaining Remarkable Rate Enhancement and Diastereoinduction.
Authors: Kawamura Shintaro , Kawabata Tatsuya , Ishizuka Kentaro , Nakamura Masaharu 
Published: January 2013

AbstractThe cross‐coupling reaction of protected trans‐4‐chlorocyclohexanol derivatives with in situ formed aryl aluminum reagents proceeds with low diastereoselectivity whilst analogous reactions of unprotected trans‐4‐chlorocyclohexanol demonstrate a good trans‐selectivity.
ChemInform Abstract: Convergent Diastereoselective Preparation of Adjacent Quaternary Stereocenters in an Acyclic System.
Authors: Mejuch Tom , Dutta Bishnu , Botoshansky Mark , Marek Ilan 
Published: January 2013

AbstractA sequential carbometalation—zinc homologation—allylation reaction of propargyl or ethynyl ethers with in situ generated alkyl—copper reagents and aromatic ketones provides access to vicinal diol derivatives containing two adjacent quaternary stereocenters (V) and (IX).
ChemInform Abstract: One‐Step Method for the Synthesis of Nitroisoindoles via 1,3‐Dipolar Cycloaddition of Azomethine Ylides to Polynitrobenzenes.
Authors: Starosotnikov Alexey M. , Bastrakow Maxim A. , Kachala Vadim V. , Belyakov Pavel A. , Fedyanin Ivan V. , Shevelev Svyatoslav 
Published: January 2013

AbstractAnnulation of a pyrrole ring to polynitrobenzenes provides a pathway to previously unknown functionalized nitroisoindoles, based on 1,3‐dipolar cycloaddition of in situ generated azomethine ylides to polynitroarenes.
ChemInform Abstract: Chirality Transfers Through Sequential Sigmatropic Rearrangements of Allylic Vicinal Diols: Development and Application to Total Synthesis of (‐)‐Kainic Acid.
Authors: Kitamoto Katsunori , Nakayama Yasuaki , Sampei Mana , Ichiki Masato , Furuya Naoya , Sato Takaaki , Chida Noritaka 
Published: January 2013

AbstractStarting from enantiopure allylic vicinal diols, Claisen/Claisen rearrangements install two identical functional groups while sequential Claisen/Overman rearrangements install two different functional groups.
ChemInform Abstract: Homogeneous Asymmetric Transfer Hydrogenation of Ketones Using a Ruthenium Catalyst Anchored on Chitosan: Natural Chirality at Work.
Authors: Babin Mathieu , Clement Roxanne , Gagnon Jonathan , Fontaine Frederic‐Georges 
Published: January 2013

AbstractThe asymmetric transfer hydrogenation of aromatic and aliphatic ketones is smoothly achieved using a RuCl2(p‐cymene) catalyst immobilized on pivaloyl‐functionalized chitosan as only source of chirality.
ChemInform Abstract: Fast Pd‐ and Pd/Cu‐Catalyzed Direct C—H Arylation of Cyclic Nitrones. Application to the Synthesis of Enantiopure Quaternary α‐Amino Esters.
Authors: Demory Emilien , Farran Daniel , Baptiste Benoit , Chavant Pierre Y. , Blandin Veronique 
Published: January 2013

AbstractCyclic nitrones undergo fast, clean, and efficient coupling with a wide range of aromatic halides.
ChemInform Abstract: BF3·OEt2/TMSN3‐Mediated Regioselective Azidolysis of Vinylaziridines.
Authors: Righi Giuliana , Bovicelli Paolo , Marucci Cristina , Tirotta Ilaria 
Published: January 2013

AbstractA recently reported study on the azidolysis of vinyl epoxides is extended to analogous N‐protected aziridines (I) to produce azides (II), accompanied by low amounts of azides (III).
ChemInform Abstract: Quick Installation of a 1,4‐Difunctionality via Regioselective Nickel‐Catalyzed Reductive Coupling of Ynoates and Aldehydes.
Authors: Rodrigo Sanjeewa K. , Guan Hairong 
Published: January 2013

AbstractSlow addition of some propiolates to aldehydes and Et3SiH in the presence of Ni‐catalyst is found to allow an efficient and selective access to silylated γ‐hydroxy‐α,β‐enoates.
ChemInform Abstract: Ph3P/I2‐Catalyzed Beckmann Rearrangement of Ketoximes into Amides.
Authors: Xu Feng , Wang Ni‐Ge , Tian You‐Ping , Chen Yong‐Mei , Liu Wei‐Chun 
Published: January 2013

AbstractPh3P/I2 is a convenient catalyst system for the Beckmann rearrangement of ketoximes into corresponding amides.
ChemInform Abstract: Copper‐Catalyzed Reductive Amination of Aromatic and Aliphatic Ketones with Anilines Using Environmental‐Friendly Molecular Hydrogen.
Authors: Werkmeister Svenja , Junge Kathrin , Beller Matthias 
Published: January 2013

AbstractAcetophenone (I) reacts with different anilines (II) to the desired amines (III) in good yields.
ChemInform Abstract: Pd(OAc)2‐Catalyzed Alkoxylation of Arylnitriles via sp2 C—H Bond Activation Using Cyano as the Directing Group.
Authors: Li Wu , Sun Peipei 
Published: January 2013

AbstractIn the presence of Na2S2O8 and Pd(O‐Ac)2, aromatic nitriles react with primary alcohols to afford ortho‐alkoxylated products in moderate to good yields.
ChemInform Abstract: Selective Conversion of Aldehydes into Nitriles and Primary Amides in Aqueous Media.
Authors: Wang Liang , Shen Chen , Wang Hai‐ping , Zhou Wei‐you , Sun Fu‐an , He Ming‐Yang , Chen Qun 
Published: January 2013

AbstractAn efficient and selective conversion of various aldehydes into corresponding nitriles and primary amides using tBuOOH and aqueous ammonia is presented.
ChemInform Abstract: Aerobic Oxidative Esterification of Benzyl Alcohols with Catalytic Tetrabromomethane under Visible Light Irradiation.
Authors: Nobuta Tomoya , Fujiy Akitoshi , Hirashima Shin‐ichi , Tada Norihiro , Miura Tsuyoshi , Itoh Akichika 
Published: January 2013

AbstractA new photooxidative method allows the synthesis of aromatic alkyl esters under metal‐free conditions.
ChemInform Abstract: Improvement in the Synthesis of (Z)‐Organylthioenynes via Hydrothiolation of Buta‐1,3‐diynes: A Comparative Study Using NaOH or TBAOH as Base.
Authors: Baroni Adriano C. M. , et al. et al. 
Published: January 2013

AbstractGenerally, the reactions using Bu4NOH are more rapid and efficient.
ChemInform Abstract: Unsymmetrical Tetrasubstituted Ureas from Tertiary Carbamoylimidazole: Activation by AlMe3.
Authors: Velavan A. , Sumathi S. , Balasubramanian K. K. 
Published: January 2013

AbstractA general and efficient access towards unsymmetrical urea derivatives is presented, involving the amination of carbamoylimidazoles in the presence of AlMe3.
ChemInform Abstract: Synthesis of 1,2‐Disubstituted Acetylenes via Copper‐Catalyzed Suzuki Coupling of Organoboronic Acids with 1,1‐Dibromo‐1‐alkenes.
Authors: Liu Jidan , Dai Fenglin , Yang Zhiyong , Wang Sizhuo , Xie Kai , Wang Anwei , Chen Xiang , Tan Ze 
Published: January 2013

AbstractVarious 1,2‐diarylacetylenes can be prepared under optimized conditions.
ChemInform Abstract: Chiral Broensted Acid‐Catalyzed Diastereo‐ and Enantioselective Synthesis of CF3‐Substituted Aziridines.
Authors: Chai Zhuo , Bouillon Jean‐Philippe , Cahard Dominique 
Published: January 2013

AbstractIf α‐imino glyoxalate or α‐imino glyoxylic amide are used as starting material the corresponding cis‐triazoline is also formed.
ChemInform Abstract: Efficient Synthesis of the Odorant, 2‐Nonen‐4‐olide.
Authors: Dai Yi‐feng , Tian Hong‐yu , Sun Bao‐guo , Sun Yu‐mei , Chen Hai‐tao , Liu Xiao‐yu 
Published: January 2013

AbstractAn efficient three‐step synthesis of nonenolide (V), a lactose with coconut‐like and rancid odour, is given.
ChemInform Abstract: Approach to Construct Polysubstituted 1,2‐Dihydronaphtho[2,1‐b]furans and Their Aerobic Oxidative Aromatization.
Authors: Huo Congde , Xu Xiaolan , An Jinzhu , Jia Xiaodong , Wang Xicun , Wang Cheng 
Published: January 2013

AbstractTriarylaminium‐mediated treatment of 2‐naphthols with chalcone epoxides is found to results in convenient formation of dihydronaphthofurans.
ChemInform Abstract: Highly Enantioselective Friedel—Crafts Alkylation of Indoles and Pyrrole with β,γ‐Unsaturated α‐Ketoesters Catalyzed by Heteroarylidene‐Tethered Bis(oxazoline) Copper Complexes.
Authors: Liu Lei , Ma Hongli , Xiao Yumei , Du Fengpei , Qin Zhaohai , Li Nan , Fu Bin 
Published: January 2013

AbstractThis work presents the first examples of asymmetric Friedel‐Crafts alkylation of unprotected pyrrole with β, γ‐unsaturated α‐ketoesters in good yields with high enantioselectivity.
ChemInform Abstract: Isocyanide‐Based Multicomponent [2 + 2 + 1]‐Cycloaddition Strategy to Construct Functionalized Spirocyclic Oxindoles.
Authors: Jie Haohua , Li Jian , Li Chunju , Jia Xueshun 
Published: January 2013

AbstractWith malononitriles (I) or (V) spirocyclic oxindoles of type (IV)/(VIII) are produced.
ChemInform Abstract: Copper‐Catalyzed Domino Coupling Reaction: An Efficient Method to Synthesize Oxindoles.
Authors: Hsieh Jen‐Chieh , Cheng An‐Yi , Fu Jun‐Hao , Kang Ting‐Wei 
Published: January 2013

AbstractIntramolecular Cu‐catalyzed cyclization of o‐bromoarylacetonitrile derivatives provides a novel efficient access towards a wide variety of oxindole derivatives.
ChemInform Abstract: Iodine(III)‐Mediated Bicyclic Diazenium Salt Formation.
Authors: Al‐Bataineh Nezar Q. , Brewer Matthias 
Published: January 2013

AbstractTreatment of arylhydrazones (I) with Ph‐I(O‐Tf)2, generated in situ, results in formation of bicyclic diazenium salts.
ChemInform Abstract: Indium Trifluoride: A Highly Efficient Catalyst for the Synthesis of Fluorine‐Containing 2,4,5‐Trisubstituted Imidazoles under Solvent‐Free Conditions.
Authors: Reddy Mudumala Veeranarayana , Jeong Yeon Tae 
Published: January 2013

AbstractA novel and improved method for the synthesis of fluorine containing trisubstituted imidazoles (III) (16 examples) using an InF3‐catalyzed one‐pot, three‐component reaction is developed.
ChemInform Abstract: Tailor‐Made Synthesis of Various Backbone‐Substituted Imidazolinium Salts by Triflic Anhydride Mediated Intramolecular Cyclization.
Authors: Zhang Jun , Su Xiaolong , Fu Jun , Qin Xinke , Zhao Meixin , Shi Min 
Published: January 2013

AbstractIn the course of the investigations stereoselective formation of the syn‐isomer (X) and regioselective alkylation of amidine (XI) at the sterically less hindered N‐substituent is observed.
ChemInform Abstract: Synthesis, Structural and Biological Characterization of 5‐Phenylhydantoin Derivatives as Potential Anticonvulsant Agents.
Authors: Trisovic Nemanja , Timic Tamara , Divljakovic Jovana , Rogan Jelena , Poleti Dejan , Savic Miroslav M. , Uscumlic Gordana 
Published: January 2013

AbstractTitle compounds of type (VI) are prepared and tested as potential anticonvulsant agents.
ChemInform Abstract: KF/Al2O3: Solid‐Supported Reagent Used in 1,3‐Dipolar Cycloaddition Reaction of Nitrile Oxide.
Authors: Boruah Monalisa , Konwar Dilip 
Published: January 2013

AbstractAn efficient one‐pot synthesis of 2‐isoxazolines via cycloaddition of nitrile oxides with olefins using solid‐supported KF as base is presented.
ChemInform Abstract: Facile Synthesis of Novel Fluorine Containing Pyrazole Based Thiazole Derivatives and Evaluation of Antimicrobial Activity.
Authors: Desai N. C. , Joshi V. V. , Rajpara K. M. , Vaghani H. V. , Satodiya H. M. 
Published: January 2013

AbstractThe synthesized compounds (V) show potent inhibitory action against Gram‐positive and Gram‐negative bacteria and against different strains of fungi.
ChemInform Abstract: 4,4′‐Bithiazole‐Based Tetraarylenes: New Photochromes with Unique Photoreactive Patterns.
Authors: Gavrel Gildas , Yu Pei , Leaustic Anne , Guillot Regis , Metivier Remi , Nakatani Keitaro 
Published: January 2013

AbstractTitle compounds (I) bearing an 1,3,5,7‐octatetraene photoreactive backbone are synthesized and their photochromic behavior is investigated.
ChemInform Abstract: An “On‐Water” Exploration of CuO Nanoparticle Catalyzed Synthesis of 2‐Aminobenzothiazoles.
Authors: Rout Saroj Kumar , Guin Srimanta , Nath Jayashree , Patel Bhisma K. 
Published: January 2013

AbstractOrtho‐fluoro and ‐chloro substrates (I) undergo intramolecular arylthiolation via in situ generated halothioureas in the presence of CuO nanoparticles.
ChemInform Abstract: A Novel System for the Synthesis of 2‐Aminobenzthiazoles Using Sodium Dichloroiodate.
Authors: Telvekar Vikas N. , Bachhav Harshal M. , Bairwa Vinod Kumar 
Published: January 2013

AbstractIn most cases, the biologically important heterocyclic skeleton is obtained within 2 h in nearly quantitative yield.
ChemInform Abstract: Copper‐Catalyzed Multicomponent Click Synthesis of 5‐Alkynyl 1,2,3‐Triazoles under Ambient Conditions.
Authors: Alonso Francisco , Moglie Yanina , Radivoy Gabriel , Yus Miguel 
Published: January 2013

AbstractThe simple and efficient procedure allows the preparation of a broad spectrum of fully substituted triazole structures.
ChemInform Abstract: InCl3 Catalyzed Three‐Component Synthesis of α‐Benzylamino Coumarins and Diketones.
Authors: Rao Pallavi , Konda Saidulu , Iqbal Javed , Oruganti Srinivas 
Published: January 2013

AbstractIndole is also suitable as coupling component to give 3‐substituted indoles of type (VII).
ChemInform Abstract: Facile Construction of Densely Functionalized 4H‐Chromenes via Three‐Component Reactions Catalyzed by L‐Proline.
Authors: Li Minghao , Zhang Biao , Gu Yanlong 
Published: January 2013

AbstractThe title procedure constitutes a general and environmentally benign method to construct densely functionalized 4H‐chromenes via a three‐component reaction of salicylaldehydes (I), nucleophiles, e.g.(II), and cyclohexanediones (III) which may proceed via an enolic hydroxy‐assisted mechanism.
ChemInform Abstract: A Concise and Versatile Synthesis of 2‐Amino‐3‐cyanopyridine Derivatives in 2,2,2‐Trifluoroethanol.
Authors: Khaksar Samad , Yaghoobi Mandana 
Published: January 2013

AbstractTrifluoroethanol is found to be an efficient and easily recoverable solvent for the synthesis of pyridine derivatives (IV)/(VI) via one‐pot four‐component condensation of aldehydes, ketones, malononitrile and NH4OAc.
ChemInform Abstract: Preparation and Reactivity of 3‐Amino‐2,4‐dichloroquinoline.
Authors: Simacek Adam , Grepl Martin , Hradilova Ludmila , Hradil Pavel 
Published: January 2013

AbstractThe title compound (II) is easily prepared from salt (I) and coupled with various oxygen‐, sulfur‐, and nitrogen‐containing nucleophiles.
ChemInform Abstract: A Cascade Reaction of Azolopyrimidines. Synthesis of Unusual Indole and Azaindole Derivatives.
Authors: Moron Maria , Burgos Carolina , Alvarez‐Builla Julio , Salgado Antonio , Mosquera Marta E. G. , Vaquero Juan J. 
Published: January 2013

AbstractThe reaction of bromo‐substituted methyl carboxylates (I) with amines (II) is reported.
ChemInform Abstract: Methodology to Access Tetrahydrodipyridoimidazole Derivatives.
Authors: El Bousmaqui Mohamed , Donnier‐Marechal Marion , Larchanche Paul‐Emmanuel , Melnyk Patricia , Carato Pascal 
Published: January 2013

AbstractTitle compounds (VI) are synthesized starting from amine (I) and aldehyde (II) using Bischler—Napieralski or Pictet—Spengler reactions as key reactions.
ChemInform Abstract: Synthesis, Characterization and Biological Evaluation of Thiazolopyrimidine Derivatives.
Authors: Nagarajaiah H. , Khazi I. M. , Begum Noor Shahina 
Published: January 2013

AbstractThe reaction of 3,4‐dihydropyrimidine‐2‐thiones (I) with α‐haloesters (II)/(IV) leads to corresponding substituted diesters of thiazolopyrimidine (III) or (V), respectively.
ChemInform Abstract: Pentafluorophenylammonium Triflate‐CuCl2: A Mild, Efficient and Reusable Heterogeneous Catalyst System for Facile Synthesis of 4(3H)‐Quinazolinones under Solvent‐Free Conditions.
Authors: Montazeri Naser , Pourshamsian Khalil , Yosefiyan Soghra , Momeni Seydeh Samaneh 
Published: January 2013

Abstract4(3H)‐Quinazolinones (III) are synthesized by cyclocondensation reaction of 2‐aminobenzamide (I) with various aromatic aldehydes (II).