bluuebunny/crossref_metadata_2025_split huggingface dataset:
Highly Effective Water Oxidation Catalysis with Iridium Complexes through the Use of NaIO4
Authors: Codolà Zoel , M. S. Cardoso João , Royo Beatriz , Costas Miquel , Lloret‐Fillol Julio 
Published: April 2013

AbstractExceptional water oxidation (WO) turnover frequencies (TOF=17 000 h−1), and turnover numbers (TONs) close to 400 000, the largest ever reported for a metal‐catalyzed WO reaction, have been found by using [Cp*IrIII(NHC)Cl2] (in which NHC=3‐methyl‐1‐(1‐phenylethyl)‐imidazoline‐2‐ylidene) as the pre‐catalyst and NaIO4 as oxidant in water at 40 °C. The apparent TOF for [Cp*IrIII(NHC)X2] (1 X, in which X stands for I (1 I), Cl (1 Cl), or triflate anion (1 OTf)) and [(Cp*‐NHCMe)IrIIII2] (2) complexes, is kept constant during almost all of the O2 evolution reaction when using NaIO4 as oxidant. The TOF was found to be dependent on the ligand and on the anion (TOF ranging from ≈600 to ≈1100 h−1 at 25 °C). Degradation of the complexes by oxidation of the organic ligands upon reaction with NaIO4 has been investigated. 1H NMR, ESI‐MS, and dynamic light‐scattering measurements (DLS) of the reaction medium indicated that the complex undergoes rapid degradation, even at low equivalents of oxidant, but this process takes place without formation of nanoparticles. Remarkably, three‐month‐old solution samples of oxidized pre‐catalysts remain equally as active as freshly prepared solutions. A UV/Vis feature band at λmax=405 nm is observed in catalytic reaction solutions only when O2 evolves, which may be attributed to a resting state iridium speciation, most probably Ir–oxo species with an oxidation state higher than IV.
Reactions of Pyridyl‐Functionalized, Chelating λ3‐Phosphinines in the Coordination Environment of RhIII and IrIII
Authors: de Krom Iris , Pidko Evgeny A. , Lutz Martin , Müller Christian 
Published: April 2013

AbstractRhIII and IrIII complexes based on the λ3‐P,N hybrid ligand 2‐(2′‐pyridyl)‐4,6‐diphenylphosphinine (1) react selectively at the PC double bond to chiral coordination compounds of the type [(1H⋅OH)Cp*MCl]Cl (2,3), which can be deprotonated with triethylamine to eliminate HCl. By using different bases, the pKa value of the POH group could be estimated. Whereas [(1H⋅O)Cp*IrCl] (4) is formed quantitatively upon treatment with NEt3, the corresponding rhodium compound [(1H⋅O)Cp*RhCl] (5) undergoes tautomerization upon formation of the λ5σ4‐phosphinine rhodium(III) complex [(1⋅OH)Cp*RhCl] (6) as confirmed by single‐crystal X‐ray diffraction. Blocking the acidic POH functionality in 3 by introducing a POCH3 substituent leads directly to the λ5σ4‐phosphinine iridium(III) complex (8) upon elimination of HCl. These new transformations in the coordination environment of RhIII and IrIII provide an easy and general access to new transition‐metal complexes containing λ5σ4‐phosphinine ligands.
ChemInform Abstract: CuTe: Remarkable Bonding Features as a Consequence of a Charge Density Wave.
Authors: Stolze Karoline , Isaeva Anna , Nitsche Fabian , Burkhardt Ulrich , Lichte Hannes , Wolf Daniel , Doert Thomas 
Published: April 2013

AbstractCuTe is prepared from the elements by annealing at 470 K for 24 d and characterized by single crystal XRD, HRTEM, and DFT calculations.
ChemInform Abstract: Magnetic Properties and Structural Transitions of Fluorite‐Related Rare Earth Osmates Ln3OsO7 (Ln: Pr, Tb).
Authors: Hinatsu Yukio , Doi Yoshihiro 
Published: April 2013

AbstractThe title compounds are prepared by reaction of Pr6O11 or Tb4O7 and OsO2 (flowing H2 at 900 °C for 1 d and 950 °C for 5 h) and characterized by powder XRD, specific heat, and magnetic susceptibility measurements.
ChemInform Abstract: NiSe2 as an Efficient Electrocatalyst for a Pt‐Free Counter Electrode of Dye‐Sensitized Solar Cells.
Authors: Gong Feng , Xu Xin , Li Zhuoqun , Zhou Gang , Wang Zhong‐Sheng 
Published: April 2013

AbstractNiSe2 is hydrothermally prepared from combined solutions of Se dissolved in aq.
ChemInform Abstract: Facile Preparation of Nano‐Micro Structure PbSbO2Cl as a Novel Anode Material for Lithium‐Ion Batteries.
Authors: Shu Jie , et al. et al. 
Published: April 2013

AbstractThe title compound is hydrothermally synthesized from aqueous solutions of Pb(NO3)2, SbCl3, and NH4OH (autoclave, 160 °C, 24 h).
ChemInform Abstract: Low Temperature Synthesis of τ‐Zirconium Hydrogenophosphate [τ‐Zr(HPO4)2] and a New Sodic Form Obtained by Ion Exchange.
Authors: Fernandez‐Valverde Suilma M. , Contreras‐Ramirez Aida , Ordonez‐Regil Eduardo , Fernandez‐Garcia M. Eufemia , Perez‐Alvarez Mario 
Published: April 2013

AbstractThe title compound is prepared by solid state reaction of NaH2PO2·H2O, (NH4)2HPO4, and ZrCl4 (1:04:08; flowing N2, 463 K, 2 h).
ChemInform Abstract: Molecular Germanium Selenophosphate Salts: Phase‐Change Properties and Strong Second Harmonic Generation.
Authors: Morris Collin D. , Chung In , Park Sungoh , Harrison Connor M. , Clark Daniel J. , Jang Joon I. , Kanatzidis Mercouri G. 
Published: April 2013

AbstractThe new compounds (Va—f) are characterized by powder and single crystal XRD, SEM, UV/VIS, Raman, and 31P MAS NMR spectroscopy, and nonlinear optical measurements.
ChemInform Abstract: Synthesis, Structural Characterization and Optical Properties of New Compounds: Centrosymmetric Ba2GaMQ5 (M: Sb, Bi; Q: Se, Te), Ba2InSbTe5 and Noncentrosymmetric Ba2InSbSe5.
Authors: Hao Wenyu , Mei Dajiang , Yin Wenlong , Feng Kai , Yao Jiyong , Wu Yicheng 
Published: April 2013

AbstractThe title compounds are prepared from mixtures of BaQ (Q: Se, Te), M12Q3 (M1: Sb, Bi), and M22Q3 (M2: Ga, In) (sealed silica tubes, Ar, 1273 K, 48 h).
ChemInform Abstract: Synthesis, Crystal Structure, and Vibrational Spectroscopic and UV—Visible Studies of Cs2MnP2O7.
Authors: Kaoua Saida , Krimi Saida , Pechev Stanislav , Gravereau Pierre , Chaminade Jean‐Pierre , Couzi Michel , El Jazouli Abdelaziz 
Published: April 2013

AbstractThe title compound is synthesized by precipitation from an aqueous solution of Mn(NO3)2, CsCl, and NH4H2PO4 followed by heating in air (progressive heating 200→700 °C with intermediate grinding).
ChemInform Abstract: Six Novel Transition‐Metal Phosphite Compounds, with Structure Related to Yavapaiite: Crystal Structures and Magnetic and Thermal Properties of AI[MIII(HPO3)2] (A: K, NH4, Rb and M: V, Fe).
Authors: Hamchaoui Farida , Alonzo Veronique , Venegas‐Yazigi Diego , Rebbah Houria , Le Fur Eric 
Published: April 2013

AbstractCompounds (IIIa—c) and (Va—c) are hydrothermally synthesized (70—87% yield) and characterized by single crystal XRD and magnetic measurements.
ChemInform Abstract: Synthesis of Lithium Cobalt Oxide by Single‐Step Soft Hydrothermal Method.
Authors: Bokinala Kiran Kumar , Pollet M. , Artemenko A. , Miclau M. , Grozescu I. 
Published: April 2013

AbstractLiCoO2 is hydrothermally synthesized from aqueous solutions of Co(OH)2, LiOH, and H2O2 in the presence of NaOH as additional mineralizer (autoclave, 220 °C, 24—60 h).
ChemInform Abstract: An Efficient Dehydroxymethylation Reaction by a Palladium Catalyst.
Authors: Modak Atanu , Naveen Togati , Maiti Debabrata 
Published: April 2013

AbstractThe title reaction tolerates a variety of substrates, allowing the dehydroxymethylation of aryl‐ and hetaryl compounds (I), as well as the extension of this protocol to aliphatic moieties (III).
ChemInform Abstract: Recyclable Pd‐Incorporated Perovskite‐Titanate Catalysts Synthesized in Molten Salts for the Liquid‐Phase Oxidation of Alcohols with Molecular Oxygen.
Authors: Adilina Indri Badria , Hara Takayoshi , Ichikuni Nobuyuki , Kumada Nobuhiro , Shimazu Shogo 
Published: April 2013

AbstractA series of Pd‐incorporated titanate catalysts are synthesized by intercalation of Pd(NO3)2 into layered potassium titanate, which proceeds via a cation‐exchange reaction in molten phase.
ChemInform Abstract: Catalytic Enantioselective Allylic Amination of Unactivated Terminal Olefins via an Ene Reaction/[2,3]‐Rearrangement.
Authors: Bao Hongli , Tambar Uttam K. 
Published: April 2013

AbstractThat is the first asymmetric allylic amination of unfunctionalized alkenes using a nitrogen‐containing reagent and a chiral Pd‐catalyst.
ChemInform Abstract: Synthesis, Cyclization, and Evaluation of the Anticancer Activity Against HeLa S‐3 Cells of Ethyl 2‐Acetylamino‐3‐ethynylazulene‐1‐carboxylates.
Authors: Hyoudou Marie , Nakagawa Hajime , Gunji Takahiro , Ito Yoshino , Kawai Yu , Ikeda Reiko , Konakahara Takeo , Abe Noritaka 
Published: April 2013

AbstractThe iodination of azulene derivatives of type (I) or (VI) and some consecutive reactions are studied.
ChemInform Abstract: Efficient and Selective Olefination of Aldehydes with Ethyl Diazoacetate Catalyzed by High‐Valent Tin(IV) Porphyrins.
Authors: Gharaati Shadab , Moghadam Majid , Tangestaninejad Shahram , Mirkhani Valiollah , Mohammadpoor‐Baltork Iraj 
Published: April 2013

AbstractThe title reaction affords exclusively the E‐isomers of the corresponding olefins in short reaction times and in excellent yields under mild conditions.
ChemInform Abstract: Aerobic Oxidation of a Tertiary Aliphatic Amine under Visible‐Light Photocatalysis: Facile Synthesis of Methylene‐Bridged Bis‐1,3‐dicarbonyl Compounds.
Authors: Yoo Woo‐Jin , Tanoue Arata , Kobayashi Shu 
Published: April 2013

AbstractIn some cases addition of Sc(OTf)3 as a co‐catalyst increases the yields of the products.
ChemInform Abstract: Friedel—Crafts Acylation Reactions Using Esters.
Authors: Chavan Subhash P. , Garai Sumanta , Dutta Achintya Kumar , Pal Sourav 
Published: April 2013

AbstractThis method can be used for intermolecular as well as intramolecular Friedel‐Crafts acylations, e.
ChemInform Abstract: Silica Boron Sulfuric Acid Nanoparticles: As an Efficient and Reusable Catalyst for the Large‐Scale Synthesis of α‐Amino Nitriles Using the Strecker Reaction.
Authors: Khalafi‐Nezhad Ali , Foroughi Habib Ollah , Panahi Farhad 
Published: April 2013

AbstractA highly efficient and green procedure for the synthesis of α‐amino nitriles (IV) (12 examples) via a one‐pot three‐component reaction is given.
ChemInform Abstract: Toluene Derivatives as Simple Coupling Precursors for Cascade Palladium‐Catalyzed Oxidative C—H Bond Acylation of Acetanilides.
Authors: Wu Yinuo , Choy Pui Ying , Mao Fei , Kwong Fuk Yee 
Published: April 2013

AbstractA cascade cross‐coupling of acetanilides (I), (IV), (VII) and (IX) and toluene derivatives (III), and (V) leading to ortho‐acylacetanilides (III), (VI), (VIII), and (X), respectively, is reported.
ChemInform Abstract: Dimeric ortho‐Palladated Homoveratrylamine as an Efficient Homogeneous Catalyst for Copper‐Free Sonogashira Cross‐Coupling Reaction.
Authors: Hajipour Abdol R. , Rahimi Hannaneh , Rafiee Fatemeh 
Published: April 2013

AbstractThe thermally stable, oxygen and moisture insensitive title catalyst is successfully applied to the Sonogashira cross‐coupling reaction.
ChemInform Abstract: Palladium‐Catalyzed Tandem Carbocyclization—Suzuki Coupling Reactions of Trifluoromethyl‐Containing Building Blocks Leading to 2‐Trifluoromethylindenes.
Authors: Wang Wen‐Ying , Sun Lei‐Lei , Deng Chen‐Liang , Tang Ri‐Yuan , Zhang Xing‐Guo 
Published: April 2013

AbstractThe method allows access to a broad spectrum of indene structures bearing an exocyclic alkylidene part.
ChemInform Abstract: Copper‐Catalyzed Ring‐Opening of Furans as a Concise Route to Polysubstituted Furans under Mild Conditions.
Authors: Yin Biaolin , Yu Huiyue , Li Zhengrong , Zhong Weiqiang , Gu Wenxiang 
Published: April 2013

AbstractThe methodology allows the transformation of various disubstituted furans into tri‐ and tetrasubstituted systems.
ChemInform Abstract: Synthesis and Redox Behavior of Cyanovinyl‐Substituted 2H‐Cyclohepta[b]furan‐2‐ones.
Authors: Shoji Taku , Higashi Junya , Ito Shunji , Oda Mitsunori , Yasunami Masafumi , Morita Noboru 
Published: April 2013

AbstractIntramolecular charge‐transfer interactions in CH2Cl2 and redox behavior of the novel compounds [(V), (VI), (VIII), and (XI)] are investigated.
ChemInform Abstract: Synthesis and Properties of Azulene‐Substituted Thiophenes, Terthiophenes and Dithienothiophenes.
Authors: Okujima Tetsuo , Toda Akiko , Miyashita Yoko , Nonoshita Ayumi , Yamada Hiroko , Ono Noboru , Uno Hidemitsu 
Published: April 2013

AbstractTitle compounds (III), (V), and (VII) are prepared using Sonogashira—Hagihara conditions and show the small HOMO‐LUMO energy gaps due to their effective π‐conjugation.
ChemInform Abstract: Efficient Synthesis of Chiral 2,2′‐Bipyrrolidines by an anti‐Selective Alkene Diamination.
Authors: Mueller Christian H. , Froehlich Roland , Daniliuc Constantin G. , Hennecke Ulrich 
Published: April 2013

AbstractThe present new intramolecular diamination method is performed either using iodosuccinimide or iodine giving bipyrrolidines and bipiperidines with complete anti‐selectivity.
ChemInform Abstract: Structural Reorganization of Allyl Isothiocyanate into Pyrrole Ring under Superbase: A Straightforward Access to NH‐2‐(Alkylsulfanyl)‐1H‐pyrroles and N‐Alkyl‐2‐(alkylsulfanyl)‐1H‐pyrroles.
Authors: Nedolya Nina A. , Brandsma Lambert , Trofimov Boris A. 
Published: April 2013

AbstractIn the presence of water, the method leads to formation of pyrroles (III).
ChemInform Abstract: One‐Pot Synthesis of Bisindolylmethanes from Benzyl Alcohols and Indoles Using Catalytic Iodine and Molecular Oxygen under Visible Light Irradiation.
Authors: Nobuta Tomoya , Fujiya Akitoshi , Tada Norihiro , Miura Tsuyoshi , Itoh Akichika 
Published: April 2013

AbstractCatalytic molecular iodine is used for both the aerobic photooxidation of the alcohols to aldehydes and the condensation of the latter with indoles.
ChemInform Abstract: Rhodium‐Catalyzed One‐Pot Intermolecular [2 + 2 + 2] Trimerization/Asymmetric Intramolecular [4 + 2] Cycloaddition of Two Aryl Ethynyl Ethers and 5‐Alkynals.
Authors: Miyauchi Yuta , Noguchi Keiichi , Tanaka Ken 
Published: April 2013

AbstractThis reaction yields substituted annulated 1,4‐cyclohexadienes with excellent enantioselectivities.
ChemInform Abstract: Enantioselective Construction of Multifunctionalized Spirocyclohexaneoxindoles Through Organocatalytic Michael—Aldol Cyclization of Isatin Derived Alkenes with Linear Dialdehydes.
Authors: Huang Xiao‐Fei , Liu Zhao‐Min , Geng Zhi‐Cong , Zhang Shao‐Yun , Wang Yong , Wang Xing‐Wang 
Published: April 2013

AbstractAn asymmetric methodology for the construction of formyl, hydroxyl, and ester functionalized spirocyclohexaneoxindoles in good yields with moderate diastereoselectivity and excellent enantioselectivity is reported.
ChemInform Abstract: Metal‐Free Catalyzed Oxidative Trimerization of Indoles by Using TEMPO in Air: A Biomimetic Approach to 2‐(1H‐Indol‐3‐yl)‐2,3′‐biindolin‐3‐ones.
Authors: Qin Wen‐Bing , Chang Qiong , Bao Yun‐Hong , Wang Ning , Chen Zheng‐Wang , Liu Liang‐Xian 
Published: April 2013

AbstractA novel, operationally simple, and practical biomimetic synthetic method for the trimerization of indoles using TEMPO in air as oxidant is presented.
ChemInform Abstract: Synthesis of 2‐Arylindole Derivatives and Evaluation as Nitric Oxide Synthase and NFϰB Inhibitors.
Authors: Yu Xufen , Park Eun‐Jung , Kondratyuk Tamara P. , Pezzuto John M. , Sun Dianqing 
Published: April 2013

AbstractA library of 2‐phenylindole derivatives is synthesized by one‐pot palladium‐catalyzed Sonogashira‐type alkynylation reactions and base‐assisted cycloaddition reactions.
ChemInform Abstract: Asymmetric Diels—Alder Reaction of 2‐Methyl‐3‐indolylmethanols via in situ Generation of o‐Quinodimethanes.
Authors: Xiao You‐Cai , Zhou Qing‐Qing , Dong Lin , Liu Tian‐Yu , Chen Ying‐Chun 
Published: April 2013

AbstractThe present new title reaction catalyzed by a secondary chiral amine is applicable to a wide range of aryl‐substituted indole derivatives (I) and α,β‐unsaturated aldehydes.
ChemInform Abstract: Synthesis and Antimicrobial Evaluation of Novel Pyrazolones and Pyrazolone Nucleosides.
Authors: Hassan Abdalla E. A. , Moustafa Ahmed H. , Tolbah Mervat M. , Zohdy Hussein F. , Haikal Abdelfattah Z. 
Published: April 2013

AbstractNovel dihydropyrazolones and their N2 alkyl, ribofuranosyl, and glucopyranosyl derivatives are prepared by potassium carbonate‐mediated alkylation or by glycosylation under Vorbrueggen conditions.
ChemInform Abstract: Zwitterionic‐Type Molten Salt‐Catalyzed Multicomponent Reactions: One‐Pot Synthesis of Substituted Imidazoles under Solvent‐Free Conditions.
Authors: Bagdi Matiur Rahman Avik Kr. , Kundu Dhiman , Majee Adinath , Hajra Alakananda 
Published: April 2013

AbstractFor the first time, an ionic liquid catalyzed synthesis of 1,2,5‐tri‐ and 1,2,4,5‐tetrasubstituted imidazoles is reported.
ChemInform Abstract: Conventional and Microwave‐Assisted Synthesis of Benzimidazole Derivatives and Their in vitro Inhibition of Human Cyclooxygenase.
Authors: Secci Daniela , Bolasco Adriana , D'Ascenzio Melissa , della Sala Flavio , Yanez Matilde , Carradori Simone 
Published: April 2013

AbstractUsing a novel microwave‐assisted oxidative cyclization procedure, a large series of benzimidazole derivatives is prepared and evaluated for their ability to inhibit human cyclooxygenases.
ChemInform Abstract: A Facile Solvent‐Free Synthesis of Chiral Oxazolidinone Derivatives Catalyzed by MgI2 Etherate: An Approach to Enantiopure Synthesis of Linezolid.
Authors: Zhang Xingxian , Zhao Chengfeng , Gu Yue 
Published: April 2013

AbstractStereoselective cycloaddition of aryl isocyanates to chiral oxiranes proceeds smoothly under solvent‐free conditions using freshly prepared magnesium iodide etherate as catalyst.
ChemInform Abstract: One‐Pot Microwave‐Assisted Synthesis of Novel Substituted N‐Dichloroacetyl‐4,5‐dimethyl‐1,3‐oxazolidines.
Authors: Fu Ying , Yang Lei , Ye Fei , Gao Shuang 
Published: April 2013

AbstractSynthesis and biological evaluation of title compounds (IV) as potential plant protecting additives to the herbicide acetochlor are described.
ChemInform Abstract: Copper‐Catalyzed Oxidative [2 + 2 + 1] Cycloaddition: Regioselective Synthesis of 1,3‐Oxazoles from Internal Alkynes and Nitriles.
Authors: Li Xianwei , Huang Liangbin , Chen Huoji , Wu Wanqing , Huang Huawen , Jiang Huanfeng 
Published: April 2013

AbstractThis is an efficient and highly regioselective oxazole synthesis under aerobic conditions.
ChemInform Abstract: Click Synthesis of 5‐Substituted 1H‐Tetrazoles from Aldehydes, Hydroxylamine, and [bmim]N3 via One‐Pot, Three‐Component Reaction.
Authors: Heravi Majid M. , Fazeli Azadeh , Oskooie Hossein A. , Beheshtiha Yahya S. , Valizadeh Hassan 
Published: April 2013

AbstractReplacement of nitrile substrates by aromatic aldehydes and the use of ionic liquid [bmim]N3 instead of NaN3 allow an easy and efficient approach to the desired tetrazoles.
ChemInform Abstract: Synthesis and anti‐Avian Influenza Virus (H5N1) Evaluation of Some Novel Nicotinonitriles and Their N‐Acyclic Nucleosides.
Authors: Rashad Aymn E. , Shamroukh Ahmed H. , El‐Hashash Maher A. , El‐Farargy Ahmed F. , Yousif Nabil M. , Salama Mowafia A. , Mostafa Ahmed , El‐Shahat Mahmoud 
Published: April 2013

AbstractPyridine derivative (IV) is easily synthesized by a four‐component modified Hantzsch reaction and used as key intermediate for the preparation of a series of novel fused pyridine derivatives and some acyclic nucleoside derivatives [cf.
ChemInform Abstract: Synthesis of Phenanthridinones via Palladium‐Catalyzed C(sp2)—H Aminocarbonylation of Unprotected o‐Arylanilines.
Authors: Liang Dongdong , Hu Ziwei , Peng Jiangling , Huang Jinbo , Zhu Qiang 
Published: April 2013

AbstractOptimal reaction conditions are found for the conversion of o‐arylanilines (I) and (IV) into phenanthridinones by aminocarbonylation.
ChemInform Abstract: Synthesis and Insecticidal Activities of Chlorothiazolyl Analogues of Nitromethylene Neonicotinoids with Tetrahydropyridine Fixed cis‐Configuration.
Authors: Shao Xusheng , Huang Xinglong , Shi Qian , Li Zhong , Tao Liming , Song Gonghua 
Published: April 2013

AbstractA series of the title thiazole derivatives (V) (22 examples) is synthesized and evaluated for their insecticidal activities.
ChemInform Abstract: An Efficient Method for the Synthesis of 3‐Aryl‐4,7‐phenanthroline Derivatives Catalyzed by Iodine.
Authors: Yin Ming‐Yue , Zhang Mei‐Mei , Wang Wei , Li Yu‐Ling , Wang Xiang‐Shan 
Published: April 2013

Abstract3‐Aryl‐4,7‐phenanthrolines (IV) are easily accessible via iodine‐catalyzed three‐component reaction of quinoline‐6‐amine, butyl vinyl ether and an aromatic aldehyde.
ChemInform Abstract: Iron(II)‐Catalyzed Denitration Reaction: Synthesis of 3‐Methyl‐2‐arylimidazo[1,2‐a]pyridine Derivatives from Aminopyridines and 2‐Methylnitroolefins.
Authors: Yan Hao , Yang Sizhou , Gao Xiai , Zhou Kang , Ma Chao , Yan Rulong , Huang Guosheng 
Published: April 2013

AbstractThe simple protocol allows the synthesis of various pharmaceutically interesting imidazopyridine structures via Michael addition of 2‐aminopyridines to nitrostyrenes followed by cyclization and elimination of nitrous acid.
ChemInform Abstract: Baylis—Hillman Acetates in Organic Synthesis: Convenient One‐Pot Synthesis of α‐Carboline Framework — A Concise Synthesis of Neocryptolepine.
Authors: Basavaiah Deevi , Reddy Daggula Mallikarjuna 
Published: April 2013

AbstractA facile, one‐pot methodology for the synthesis of pyridoindole derivatives from corresponding Baylis—Hillman acetates is reported.
ChemInform Abstract: Study of Cyclization of o‐(‐Alkynyl)‐ and o‐(1,3‐Butadiynyl)aryltriazenes under the Action of Acids.
Authors: Danilkina N. A. , Gorbunova E. G. , Sorokoumov V. N. , Balova I. A. 
Published: April 2013

AbstractUnder the action of acids, title compounds (I) and (V) undergo cyclization to form cinnolines (II) and (VI), respectively.
ChemInform Abstract: Microwave‐Assisted Synthesis, Molecular Docking and Antitubercular Activity of 1,2,3,4‐Tetrahydropyrimidine‐5‐carbonitrile Derivatives (IV)
Authors: Mohan Sahoo Biswa , Kumar B. V. V. Ravi , Dinda S. C. , Naik D. , Seenivasan S. Prabu , Kumar Vanaja , Rana Dharmarajsinh N. , Brahmkshatriya Pathik S. 
Published: April 2013

Abstract16 examples
ChemInform Abstract: Chlorotrimethylsilane‐Promoted Condensation of Ketones and Aminoazoles.
Authors: Ryabukhin Sergey V. , Naumchik Vasiliy S. , Grygorenko Oleksandr O. , Tolmachev Andrey A. 
Published: April 2013

AbstractTms‐Cl‐promoted reaction of aminoazoles with ketones (II) provides dihydroazolopyrimidine derivatives such as (III) and (V) as single regioisomers.
ChemInform Abstract: Synthesis and Molecular Structure of 2,3,4,5‐Tetrahydro‐1H‐3‐benzazepine Derivatives and Dimethyl 4‐Cyano‐2,3,6,7‐tetrahydro‐1H‐3‐benzazonine‐5,6‐dicarboxylate.
Authors: Soldatenkov A. T. , Soldatova S. A. , Mamyrbekova‐Bekro J. A. , Gimranova G. S. , Malkova A. V. , Polyanskii K. B. , Kolyadina N. M. , Khrustalev V. N. 
Published: April 2013

AbstractTreatment of quaternary tetrahydroisoquinolinium salts (I) with NaH results in the formation of tetrahydrobenzazepine derivatives via a Stevens rearrangement.
ChemInform Abstract: Condensed Diazepines. Synthesis of 1‐R‐3,4‐Dihydro‐5H‐benzothieno[2,3‐d][1,2]diazepin‐4‐ones
Authors: Tolkunov V. S. , Eres'ko A. B. , Mazepa A. V. , Palamarchuk G. V. , Shishkin O. V. , Tolkunov S. V. 
Published: April 2013

Abstractvia reactions of benzothienopyrones or 2‐aroylbenzothiophene‐3‐acetic acids with hydrazine
ChemInform Abstract: Efficient Synthesis of Imidazole‐Fused Benzodiazepines Using Palladium‐Catalyzed Intramolecular C—N Bond Formation Reaction.
Authors: Mitra Sudipta , Darira Heena , Chattopadhyay Partha 
Published: April 2013

AbstractThe intramolecular Buchwald—Hartwig cycloamination reaction of precursors (V) is the key‐step in the three‐step synthetic route to the title benzodiazepines (VI).
ChemInform Abstract: Iron(III) Catalyzed Direct Synthesis of cis‐2,7‐Disubstituted Oxepanes. The Shortest Total Synthesis of (+)‐Isolaurepan.
Authors: Purino Martin A. , Ramirez Miguel A. , Daranas Antonio H. , Martin Victor S. , Padron Juan I. 
Published: April 2013

AbstractTitle compounds are synthesized by iron(III)‐catalyzed Prins cyclization of bis‐homoallylic alcohols with aldehydes in the presence of trimethylsilyl chloride to avoid the formation of tetrahydrofurans.