bluuebunny/crossref_metadata_2025_split huggingface dataset:
Monoclonal antibody capture and viral clearance by cation exchange chromatography
Authors: Miesegaes G.R. , Lute S. , Strauss D.M. , Read E.K. , Venkiteshwaran A. , Kreuzman A. , Shah R. , Shamlou P. , Chen D. , Brorson K. 
Published: March 2012

AbstractTraditionally, post‐production culture harvest capture of therapeutic monoclonal antibodies (mAbs) is performed using Protein A chromatography. We investigated the efficiency and robustness of cation exchange chromatography (CEX) in an effort to evaluate alternative capture methodologies. Up to five commercially available CEX resins were systematically evaluated using an experimentally optimized buffer platform and a design‐of‐experiment (DoE) approach for their ability to (a) capture a model mAb with a neutral isoelectric point, (b) clear three model viruses (porcine parvovirus, CHO type‐C particles, and a bacteriophage). This approach identified a narrow operating space where yield, purity, and viral clearance were optimal under a CEX capture platform, and revealed trends between viral clearance of PPV and product purity (but not yield). Our results suggest that after unit operation optimization, CEX can serve as a suitable capture step. Biotechnol. Bioeng. 2012; 109:2048–2058. © 2012 Wiley Periodicals, Inc.
Determination of the esculetin contents of medicinal plants by liquid chromatography–tandem mass spectrometry
Authors: Yun Eun‐Sun , Park Sung‐Kyu , Kim Bog‐Soon , Chae Young‐Zoo , Cho Soo‐Min , Yi Hee , Cho Hee‐Jung , Shin Ho‐Chul 
Published: March 2012

ABSTRACTWe developed a LC‐MS/MS method for the determination of esculetin contents in medicinal plants. The analysis was performed using multiple reaction monitoring in negative mode, and an XBridge™ C18 column (2.1 × 100 mm, 3.5 µm) was used. Methanol and 0.1% formic acid were used for gradient analysis. The calibration curve showed good linearity (r2 > 0.9993). The limits of detection and quantitation were 0.02 and 0.07 ng/mL, respectively. The intra‐day and inter‐day precisions were 1.5–6.8 and 2.0–5.3%, respectively, and the accuracy was 102.0–110.2%. The contents of esculetin in 35 different plants were determined, and Fraxini Cortex showed the highest content of esculetin (761–5475 mg/kg). In Mori Folium and Artemisiae Capillaris Herba, 5.2–21.5 and 7.0–17.6 mg/kg of esculetin were found, respectively. In other medicinal plants, no esculetin was detected, or it was present at a concentration less than 10 mg/kg. The analysis method appears to be simple, sensitive and reproducible. Contrary to expectations based on traditional medical knowledge, although Artemisiae Capillaris Herba contains a large amount of esculetin, it appears from this study that Fraxini Cortex contains a greater amount. The pharmacological effects of esculetin isolated from medicinal plants should be investigated as part of new medicines development. Copyright © 2012 John Wiley & Sons, Ltd.
Heterogeneous versus Homogeneous Palladium Catalysts for Cross‐Coupling Reactions
Authors: Pagliaro Mario , Pandarus Valerica , Ciriminna Rosaria , Béland François , Demma Carà Piera 
Published: March 2012

AbstractA large number of immobilized‐Pd‐catalysts for cross‐coupling reactions have been introduced in the last decade. Are the observed catalyzed reactions truly heterogeneous or are they homogeneous due to leached palladium? This account critically addresses the leaching issue by selectively referring to some of the newly developed catalytic systems in an attempt to evaluate said systems based on uniform criteria. The report is concluded by identifying the relevant chemical and structural challenges in the field.
ChemInform Abstract: Quadruple‐Layered Perovskite (CuCl)Ca2NaNb4O13.
Authors: Kageyama H. , et al. et al. 
Published: March 2012

AbstractThe title compound is obtained from RbCa2NaNb4O13 through a topotactic ion‐exchange reaction with CuCl2 (320 °C, 7 d).
ChemInform Abstract: Resolving the Different Silicon Clusters in Li12Si7 by 29Si and 6,7Li Solid‐State NMR Spectroscopy.
Authors: Koester Thomas K.‐J. , Salager Elodie , Morris Andrew J. , Key Baris , Seznec Vincent , Morcrette Mathieu , Pickard Chris J. , Grey Clare P. 
Published: March 2012

AbstractDifferent Si clusters in Li12Si7 are resolved and their individual connectivities are analyzed by 29Si correlation NMR spectroscopy.
ChemInform Abstract: Double Perovskite Sr2FeMoO6‐xNx (x = 0.3, 1.0) Oxynitrides with Anionic Ordering.
Authors: Retuerto M. , de la Calle C. , Martinez‐Lope M. J. , Porcher F. , Krezhov K. , Menendez N. , Alonso J. A. 
Published: March 2012

AbstractTwo new compounds of composition Sr2FeMoO5.7N0.3 and Sr2FeMoO5N are prepared by annealing precursors obtained by the citrate route in flowing ammonia at 750 and 650 °C, respectively.
ChemInform Abstract: Broensted Acidic Ionic Liquid: A Simple, Efficient and Recyclable Catalyst for Regioselective Alkylation of Phenols and anti‐Markovnikov Addition of Thiols to Alkenes.
Authors: Qureshi Ziyauddin S. , Deshmukh Krishna M. , Dhake Kishor P. , Bhanage Bhalchandra M. 
Published: March 2012

AbstractAcidic ionic liquid NMP·H2SO4 is used as an efficient catalyst for the selective ortho‐alkylation of phenols under solvent free conditions.
ChemInform Abstract: Miceller Media Accelerated Baylis—Hillman Reaction.
Authors: Pawar Balu , Padalkar Vikas , Phatangare Kiran , Nirmalkar Sudhakar , Chaskar Atul 
Published: March 2012

AbstractThe use of micellar solution in aqueous medium accelerates the rate of Baylis—Hillman reaction and enhances the product yield.
ChemInform Abstract: Nitrogen‐Bridged Heterocycles via Cycloaddition of Non‐classical Heterocyclic‐Fused‐[c]thiazoles.
Authors: Soares Maria I. L. , Gomes Clara S. B. , Pinho e Melo Teresa M. V. D. 
Published: March 2012

AbstractThe reactions of the title compounds, generated in situ, with dipolarophiles furnish a range of new nitrogen‐bridged bi‐, tri‐ and tetracyclic heterocycles.
ChemInform Abstract: Direct Catalytic Asymmetric Intramolecular Conjugate Addition of Thioamide to α,β‐Unsaturated Esters.
Authors: Suzuki Yuta , Yazaki Ryo , Kumagai Naoya , Shibasaki Masakatsu 
Published: March 2012

AbstractProton transfer allows efficient access to optically active five‐ and six‐membered ring systems bearing ester and thioamide functionalities.
ChemInform Abstract: Rhodium‐Catalyzed Asymmetric [2 + 2 + 2] Cyclization of 1,6‐Enynes and Aldehydes.
Authors: Ishida Mana , Shibata Yu , Noguchi Keiichi , Tanaka Ken 
Published: March 2012

AbstractThe first asymmetric [2 + 2 + 2] cyclization of 1,6‐enynes and aldehydes is accomplished by using a cationic rhodium(I)/(R)‐BINAP complex as the catalyst to give products such as (III), (V), or (VIII).
ChemInform Abstract: Synthetic Applications of the Nickel‐Catalyzed Cyclization of Alkynes Combined with Addition Reactions in a Domino Process.
Authors: Durandetti Muriel , Hardou Lucie , Lhermet Rudy , Rouen Mathieu , Maddaluno Jacques 
Published: March 2012

AbstractNeither glovebox chemistry, nor tedious preparation of sophisticated intermediate organometallic derivatives are required for the nickel‐catalyzed exo‐dig cyclization of iodoarylalkynes such as (I), (III), or (V) to give a variety of dihydrobenzofurans, chromans, isochromans, indoles, or indans in good to high stereochemistry.
ChemInform Abstract: Platinum Nanoparticles Supported on Nitrogen‐Doped Carbon Nanofibers as Efficient Poisoning Catalysts for the Hydrogenation of Nitroarenes.
Authors: Motoyama Yukihiro , Lee Youngjin , Tsuji Keita , Yoon Seong‐Ho , Mochida Isao , Nagashima Hideo 
Published: March 2012

AbstractPlatinum nanoparticles supported on nitrogen‐doped carbon nanofibers efficiently catalyze the chemoselective hydrogenation of nitroarenes and the catalytic activity can be controlled by an appropriate choice of the platinum/nitrogen ratio.
ChemInform Abstract: Ruthenium‐Catalyzed Reduction of N‐Alkoxy‐ and N‐Hydroxyamides.
Authors: Fukuzawa Hiroko , Ura Yasuyuki , Kataoka Yasutaka 
Published: March 2012

AbstractThe ruthenium‐catalyzed reduction of N‐alkoxy‐ and N‐hydroxyamides to the corresponding amides is developed.
ChemInform Abstract: Copper‐Free Sonogashira Cross‐Coupling for Functionalization of Alkyne‐Encoded Proteins in Aqueous Medium and in Bacterial Cells.
Authors: Li Nan , Lim Reyna K. V. , Edwardraja Selvakumar , Lin Qing 
Published: March 2012

AbstractA new and robust aminopyrimidine—palladium(II) complex is used for copper‐free Sonogashira cross‐coupling of various aryl iodides with terminal alkyne‐containing peptide and protein substrates in aqueous medium.
ChemInform Abstract: Catalytic Asymmetric γ‐Alkylation of Carbonyl Compounds via Stereoconvergent Suzuki Cross‐Couplings.
Authors: Zultanski Susan L. , Fu Gregory C. 
Published: March 2012

AbstractIn the presence of a chiral nickel catalyst generated in situ, enantioselective alkylation reactions of carbonyl compounds are achieved by coupling of chloroamides (II) with alkylboranes.
ChemInform Abstract: Organocatalytic Asymmetric Wittig Reactions: Generation of Enantioenriched Axially Chiral Olefins Breaking a Symmetry Plane.
Authors: Gramigna Lucia , Duce Sara , Filippini Giacomo , Fochi Mariafrancesca , Franchini Mauro Comes , Bernardi Luca 
Published: March 2012

AbstractIt is demonstrated, that the stereochemical outcome of Wittig olefinations of 4‐substituted cyclohexanones can be controlled by hydrogen‐bond donor catalysts such as (R,R)‐TADDOL or 1,2‐diaminocyclohexane derived bis‐thioureas.
ChemInform Abstract: 1,2‐Dihydropentalenes from Fulvenes by [6 + 2] Cycloadditions with 1‐Isopropenylpyrrolidine.
Authors: Coskun Necdet , Ma Jingxiang , Azimi Saeed , Gaertner Christian , Erden Ihsan 
Published: March 2012

AbstractThe in situ formation of the acetone pyrrolidine enamine is followed by cycloaddition.
ChemInform Abstract: Oxidative Prins‐Pinacol Tandem Process Mediated by a Hypervalent Iodine Reagent: Scope, Limitations, and Applications.
Authors: Beaulieu Marc‐Andre , Guerard Kimiaka C. , Maertens Gaetan , Sabot Cyrille , Canesi Sylvain 
Published: March 2012

AbstractUpon treatment with hypervalent iodine reagents, a number of phenol derivatives bearing pentenyl or pentynyl units undergoes cyclization to afford spirocyclic compounds, in some cases with high stereoselectivity.
ChemInform Abstract: The Continuous‐Flow Synthesis of Styrenes Using Ethylene in a Palladium‐Catalyzed Heck Cross‐Coupling Reaction.
Authors: Bourne Samuel L. , Koos Peter , O'Brien Matthew , Martin Benjamin , Schenkel Berthold , Baxendale Ian R. , Ley Steven V. 
Published: March 2012

AbstractA fast, safe and practical synthesis of styrenes by Pd‐catalyzed Heck reaction of aryl iodides with ethylene is described using a tube‐in‐tube gas‐liquid reactor under continuous flow conditions.
ChemInform Abstract: Copper(I)‐Catalyzed Deacetylenative Coupling of Propargylic Amines: An Efficient Synthesis of Symmetric 1,4‐Diamino‐2‐butynes.
Authors: Kim Yongeun , Nakamura Hiroyuki 
Published: March 2012

AbstractThe deacetylenative coupling reaction of two terminal propargylic amines is accomplished in the presence of a copper(I) catalyst and the absence of a base to give the diaminobutynes (II).
ChemInform Abstract: Gold‐Catalyzed 1,2‐Difunctionalizations of Aminoalkynes Using only N‐ and O‐Containing Oxidants.
Authors: Mukherjee Anupam , Dateer Ramesh B. , Chaudhuri Rupsha , Bhunia Sabyasachi , Karad Somnath Narayan , Liu Rai‐Shung 
Published: March 2012

AbstractIn the presence of a gold catalyst, aminoalkynes and nitrones (II) undergo oxoamination to form 2‐aminoamides (III) and (VI).
ChemInform Abstract: Ring Cleavage and Successive Aldol Reaction of 3‐[(Trialkylsilyl)methyl]cyclobutanones.
Authors: Matsuo Jun‐ichi , Harada Kosuke , Kawano Mizuki , Okuno Ryosuke , Ishibashi Hiroyuki 
Published: March 2012

AbstractAt higher temperatures, the β,γ‐unsaturated aldol products (III) and (VIII) isomerize to the corresponding α,β‐unsaturated ones.
ChemInform Abstract: Room Temperature Asymmetric Allylic Trifluoromethylation of Morita—Baylis—Hillman Carbonates.
Authors: Li Yun , Liang Fang , Li Qian , Xu Yao‐chang , Wang Quan‐Rui , Jiang Lei 
Published: March 2012

AbstractThe bisolvent system permits an optimal ratio of enantioselectivity to reaction rate and good to excellent results are obtained for arylsubstituted substrates.
ChemInform Abstract: Synthesis of Optically Active N‐Aryl Amino Acid Derivatives Through the Asymmetric Petasis Reaction Catalyzed by a Novel Hydroxy—Thiourea Catalyst.
Authors: Inokuma Tsubasa , Suzuki Yusuke , Sakaeda Toshiyuki , Takemoto Yoshiji 
Published: March 2012

AbstractResulting products are easily transformed into pharmacologically important heterocyclic compounds [cf.
ChemInform Abstract: Structural Study Guided Development of Versatile Phase‐Transfer Catalysts for Asymmetric Conjugate Additions of Cyanide.
Authors: Provencher Brian A. , Bartelson Keith J. , Liu Yan , Foxman Bruce M. , Deng Li 
Published: March 2012

AbstractThe use of catalysts (I) and (II) allows the synthesis of both enantiomers of the corresponding 1,4‐adducts.
ChemInform Abstract: Simple and Efficient Copper‐Catalyzed S‐Arylation of Diaryl Disulfides with Triarylbismuthanes under Aerobic Conditions.
Authors: Yasuike Shuji , Nishioka Motokazu , Kakusawa Naoki , Kurita Jyoji 
Published: March 2012

AbstractThe procedure affords various unsymmetrical disulfides in moderate to good yields.
ChemInform Abstract: JandaJel as a Polymeric Support to Improve the Catalytic Efficiency of Immobilized‐1,5,7‐tirazabicyclo[4.4.0]dec‐5‐ene (TBD) under Solvent‐Free Conditions.
Authors: Lanari Daniela , Ballini Roberto , Bonollo Simona , Palmieri Alessandro , Pizzo Ferdinando , Vaccaro Luigi 
Published: March 2012

AbstractJandaJel with its greater spacing between the linear polymeric chains compared to that of polystyrene matrices, is a very efficient support for improving the catalytic activity of TBD.
ChemInform Abstract: Palladium Nanoparticles Immobilized on Chemically Modified Silica Gel: Efficient Heterogeneous Catalyst for Suzuki, Stille and Sonogashira Cross‐Coupling Reactions.
Authors: Dutta Piyali , Sarkar Amitabha 
Published: March 2012

AbstractThe catalyst can be easily removed and reused several times without significant loss of activity.
ChemInform Abstract: Highly Effective Copper‐Catalyzed Decarboxylative Coupling of Aryl Halides with Alkynyl Carboxylic Acids.
Authors: Qu Xiaoming , Li Tingyi , Sun Peng , Zhu Yan , Yang Hailong , Mao Jincheng 
Published: March 2012

AbstractThe protocol employed to perform the Cu(I)‐catalyzed decarboxylative coupling between alkyl and aryl halides with alkynoic acids (II) provides an alternative to traditional Pd‐catalysts for these transformations.
ChemInform Abstract: Synthesis of Diarylalkynes by Iron/Copper Co‐Catalyzed Decarboxylative sp—sp2 Coupling of Alkynyl Carboxylic Acids and Aryl Halides.
Authors: Li Tingyi , Qu Xiaoming , Zhu Yan , Sun Peng , Yang Hailong , Shan Yuqin , Zhang Hongxin , Liu Defu , Zhang Xiang , Mao Jincheng 
Published: March 2012

AbstractIt provides an efficient method to prepare a number of diarylalkynes.
ChemInform Abstract: Gold‐Catalyzed Oxidative Cyclizations of 2‐Oxiranyl‐1‐alkynylbenzenes for Diastereoselective Synthesis of Highly Substituted 2‐Hydroxyindanones.
Authors: Chaudhuri Rupsha , Liu Rai‐Shung 
Published: March 2012

AbstractIt allows a new and diastereoselective access to various 2‐hydroxyindanones like (II), (IV), and (VI).
ChemInform Abstract: Manganese(III) Acetate‐Mediated Cyclization of Diarylmethylenecyclopropa[b]naphthalenes: A Method for the Synthesis of 1,2‐Benzanthracene Derivatives.
Authors: Cao Jian , Miao Maozhong , Chen Wanli , Wu Luling , Huang Xian 
Published: March 2012

AbstractThe functionalized benzanthracenes are useful synthons which can be converted into derivatives such as (V) and (VIII) as well as polycyclic carbazoles like (X).
ChemInform Abstract: Diastereoselective Aziridination of 2‐B(pin)‐Substituted Allylic Alcohols: An Efficient Approach to Novel Organoboron Compounds.
Authors: Hernandez‐Toribio Jorge , Hussain Mahmud M. , Cheng Kevin , Carroll Patrick J. , Walsh Patrick J. 
Published: March 2012

AbstractAminohydroxy ketones (IX) can be generated with high diastereoselectivity by a one‐pot two‐step process including aziridination followed by B—C bond oxidation.
ChemInform Abstract: Straightforward Synthesis of 1‐Alkyl‐2‐(trifluoromethyl)aziridines Starting from 1,1,1‐Trifluoroacetone.
Authors: Kenis Sara , D'hooghe Matthias , Verniest Guido , Nguyen Vinh Duc , Thi Tuyet Anh Dang , Nguyen Tuyen Van , De Kimpe Norbert 
Published: March 2012

AbstractThe straightforward approach towards the synthesis of aziridines (IV) starts from trifluoroacetone (I) via imination, α‐chlorination, hydride reduction, and ring closure.
ChemInform Abstract: Synthesis of Well‐Defined Head‐to‐Tail‐Type Oligothiophenes by Regioselective Deprotonation of 3‐Substituted Thiophenes and Nickel‐Catalyzed Cross‐Coupling Reaction.
Authors: Tanaka Shota , Tamba Shunsuke , Tanaka Daiki , Sugie Atsushi , Mori Atsunori 
Published: March 2012

AbstractThe regiocontrolled metalation of 3‐substituted thiophenes is accomplished using the Knochel—Hauser base or a combination of a Grignard reagent and catalytic tetramethylpiperidine.
ChemInform Abstract: Multifunctionalized 3‐Hydroxypyrroles in a Three‐Step, One‐Pot Cascade Process from Methyl 3‐TBSO‐2‐diazo‐3‐butenoate and Nitrones.
Authors: Xu Xinfang , Ratnikov Maxim O. , Zavalij Peter Y. , Doyle Michael P. 
Published: March 2012

AbstractThe copper‐catalyzed Mannich addition is followed by rhodium‐catalyzed dinitrogen extrusion.
ChemInform Abstract: A Facile Strategy for the One‐Pot Multicomponent Synthesis of Spiro Dihydropyridine from Amines and Activated Alkynes.
Authors: Kiruthika Selvarangam E. , Lakshmi Neelakandan Vidhya , Banu Babu Rasidha , Perumal Paramasivan T. 
Published: March 2012

AbstractIsatin, activated methylene compounds, primary amines, and diesters (IV)/(VIII) are used for the preparation of multisubstituted spirocyclic pyridine systems (V) and (IX).
ChemInform Abstract: An Efficient Synthesis of 2,4′‐Bi‐1,3‐oxa(thia)zoles as Scaffolds for Bioactive Products.
Authors: Pena S. , Scarone L. , Manta E. , Serra G. 
Published: March 2012

AbstractA series of 2,4′‐bi‐1,3‐azoles are constructed using the Hanzsch reaction and oxidative cyclodehydration of β‐hydroxy amides or thioamides.
ChemInform Abstract: Synthesis and Antioxidant Evaluation of Some New 3‐Substituted Coumarins.
Authors: Hamama Wafaa S. , Berghot Moged A. , Baz Eman A. , Gouda Moustafa A. 
Published: March 2012

AbstractFrom the synthesized new title compounds the coumarins (VII), (XII), and (XVI) exhibit a high antioxidant activity in comparison to ascorbic acid.
ChemInform Abstract: C—H Arylation of Pyridines: High Regioselectivity as a Consequence of the Electronic Character of C—H Bonds and Heteroarene Ring.
Authors: Guo Pengfei , Joo Jung Min , Rakshit Souvik , Sames Dalibor 
Published: March 2012

AbstractA new and highly regioselective method for C—H arylation of pyridines and quinolines containing electron‐withdrawing substituents is reported.
ChemInform Abstract: Highly Enantioselective Organocatalytic Cascade Reaction for the Synthesis of Piperidines and Oxazolidines.
Authors: Cihalova Sylva , Valero Guillem , Schimer Jiri , Humpl Marek , Dracinsky Martin , Moyano Albert , Rios Ramon , Vesely Jan 
Published: March 2012

AbstractOrganocatalyzed Michael addition of amidomalonates, e.g. (I) and (VI), towards enals (II) followed by intramolecular hemiaminal formation provides enantioenriched piperidine derivatives (III) and (VII), resp., in up to 99% optical purity.
ChemInform Abstract: Palladium‐Catalyzed Tandem N‐Vinylation and Cyclization of Anilines and Haloenynes: An Efficient Approach to Substituted Quinolines.
Authors: Wang Yuxing , Liao Qian , Zhao Peng , Xi Chanjuan 
Published: March 2012

AbstractThe reaction can be performed successfully with bromo‐ and iodoenynes.
ChemInform Abstract: One‐Pot Ring‐Closing Metathesis (RCM)/Oxidation by an Assisted Tandem Ruthenium Catalysis for the Synthesis of 2‐Quinolones.
Authors: Kato Hiroshige , Ishigame Tatsuya , Oshima Nobuhiro , Hoshiya Naoyuki , Shimawaki Ken , Arisawa Mitsuhiro , Shuto Satoshi 
Published: March 2012

AbstractIt provides a new approach to 2‐quinolones.
ChemInform Abstract: Enantioselective Intramolecular [2 + 2]‐Photocycloaddition Reactions of 4‐Substituted Quinolones Catalyzed by a Chiral Sensitizer with a Hydrogen‐Bonding Motif.
Authors: Mueller Christiane , Bauer Andreas , Maturi Mark M. , Consuelo Cuquerella M. , Miranda Miguel A. , Bach Thorsten 
Published: March 2012

AbstractIn the presence of the chiral amide AMX the quinolones (Ia)—(Ic) and (IVa) undergo photocyclization with good to high regio‐ and enantioselectivity.
ChemInform Abstract: A Serendipitous Discovery: Nickel Catalyst for the Cycloaddition of Diynes with Unactivated Nitriles.
Authors: Kumar Puneet , Prescher Simon , Louie Janis 
Published: March 2012

AbstractThe system Ni(cod)2/Xantphos catalyzes the reaction between alkynes and nonactivated nitriles to give unexpected pyridine derivatives.
ChemInform Abstract: Synthetic Route to Chiral Tetrahydroquinoxalines via Ring‐Opening of Activated Aziridines.
Authors: Ghorai Manas K. , Sahoo Ashis K. , Kumar Sarvesh 
Published: March 2012

AbstractThe solvent‐ and catalyst‐free SN2‐type ring‐opening of the activated aziridines proceeds highly stereo‐ and regioselective.
ChemInform Abstract: N‐Aryl‐2‐nitrosoanilines as Intermediates in the Synthesis of Substituted Phenazines from Nitroarenes.
Authors: Kwast Andrzej , Stachowska Karolina , Trawczynski Adam , Wrobel Zbigniew 
Published: March 2012

AbstractDifferent reaction conditions are described for the reductive cyclization of nitrosoarenes of type (I) to give a variety of target compounds.
ChemInform Abstract: Asymmetric Formal [3 + 3]‐Cycloaddition Reactions of Nitrones with Electrophilic Vinylcarbene Intermediates.
Authors: Wang Xiaochen , Xu Xinfang , Zavalij Peter Y. , Doyle Michael P. 
Published: March 2012

AbstractVarious 1,2‐oxazine derivatives can be prepared with good to high enantioselectivity.
ChemInform Abstract: Chemoselective Intramolecular Allylic C—H Amination versus C=C Aziridination Through Co(II)‐Based Metalloradical Catalysis.
Authors: Lu Hongjian , Jiang Huiling , Hu Yang , Wojtas Lukasz , Zhang X. Peter 
Published: March 2012

AbstractAzathiazine derivatives are selectively synthesized by intramolecular allylic C—H amination of both N‐bishomoallylic and N‐allylic sulfamoyl azides using a Co(II)—porphyrin catalyst.
ChemInform Abstract: 1,n‐Diamines. Part 4. Synthesis of 1‐Aryl‐2‐alkyl‐1,4,5,6,7,8‐hexahydro‐1,3‐diazocines.
Authors: Diaz Jimena E. , Gruber Nadia , Orelli Liliana R. 
Published: March 2012

AbstractMicrowave‐assisted cyclodehydration of diamines (III) and (VII) offers a convenient synthesis of novel 1,3‐diazocines.