bluuebunny/crossref_metadata_2025_split huggingface dataset:
ChemInform Abstract: User‐Friendly [(Diglyme)NiBr2]‐Catalyzed Direct Alkylations of Heteroarenes with Unactivated Alkyl Halides Through C—H Bond Cleavages.
Authors: Ackermann Lutz , Punji Benudhar , Song Weifeng 
Published: April 2012

AbstractTitle reaction proceeds smoothly in the presence of a phosphor‐ and nitrogen‐free NiBr2—CuI—diglyme catalyst system to afford C‐2 alkylated benzoxazoles (III) and benzothiazoles (V) in moderate yields.
ChemInform Abstract: Triflic Acid Catalyzed Oxidative Lactonization and Diacetoxylation of Alkenes Using Peroxyacids as Oxidants.
Authors: Kang Yan‐Biao , Gade Lutz H. 
Published: April 2012

AbstractA clean and efficient method to prepare 1,2‐diacetoxy alkanes from alkenes is reported.
ChemInform Abstract: Atmospheric Pressure Aminocarbonylation of Aryl Iodides Using Palladium Nanoparticles Supported on MOF‐5.
Authors: Dang Tuan T. , Zhu Yinghuai , Ghosh Subhash C. , Chen Anqi , Chai Christina L. L. , Seayad Abdul M. 
Published: April 2012

AbstractAn efficient synthesis of the amides (IV) and (VI) is presented by using a recyclable catalyst with a negligible palladium leaching.
ChemInform Abstract: Microwave‐Assisted Benzyl‐Transfer Reactions of Commercially Available 2‐Benzyloxy‐1‐methylpyridinium Triflate.
Authors: Wang Teng‐wei , Intaranukulkit Tanit , Rosana Michael R. , Slegeris Rimantas , Simon Janet , Dudley Gregory B. 
Published: April 2012

AbstractThe benzylation of various primary, secondary and tertiary aliphatic alcohols as well as phenols proceeds smoothly with title benzyloxypyridinium triflate (II) under microwave irradiation.
ChemInform Abstract: Diverse Trifluoromethyl Heterocycles from a Single Precursor.
Authors: Honey Mark A. , Pasceri Raffaele , Lewis William , Moody Christopher J. 
Published: April 2012

AbstractThe oxobutanoate (I) can smoothly be converted into trifluoromethylated oxazoles, thiazoles, imidazoles, triazines, and pyridines which are of biological interest.
ChemInform Abstract: Intramolecular Pauson—Khand Reaction Catalyzed by Oxime‐Derived Palladacycles.
Authors: Wang Xue‐Rui , Lu Fu‐Hua , Song Yang , Lu Zhong‐Lin 
Published: April 2012

AbstractOxime‐derived palladacycles with a pyridine co‐ligand are tested and PACY is found to be optimal for the synthesis of bicyclic cyclopentenones.
ChemInform Abstract: Regio‐ and Stereoselective Synthesis of Cyclopentenones: Intermolecular Pseudo‐Pauson—Khand Cyclization.
Authors: Barluenga Jose , Alvarez‐Fernandez Ana , Suarez‐Sobrino Angel L. , Tomas Miguel 
Published: April 2012

AbstractA one‐pot procedure is developed to synthesize polysubstituted cyclopentenones from bromoalkenes and carbene complexes.
ChemInform Abstract: Access to Dienophilic Ene‐Triketone Synthons by Oxidation of Diketones with an Oxoammonium Salt.
Authors: Eddy Nicholas A. , Kelly Christopher B. , Mercadante Michael A. , Leadbeater Nicholas E. , Fenteany Gabriel 
Published: April 2012

AbstractTreatment of cyclohexadiones of type (I) with the oxoammonium salt shown in the scheme provides a new approach to ene‐triketones like (II).
ChemInform Abstract: Rhodium‐Catalyzed Asymmetric Arylation of N‐(tert‐Butanesulfinyl)imines with Sodium Tetraarylborates.
Authors: Reddy Leleti Rajender , Gupta Aditya P. , Villhauer Eric , Liu Yugang 
Published: April 2012

AbstractThe method allows a new, efficient, and highly stereoselective access to optically active α‐branched amines in a diastereomerically pure form.
ChemInform Abstract: Thermocontrolled Benzylimine—Benzaldimine Rearrangement over Nafion‐H Catalysts for Efficient Entry into α‐Trifluoromethylbenzylamines.
Authors: Prakash G. K. Surya , Glinton Kevin E. , Panja Chiradeep , Gurung Laxman , Battamack Patrice T. , Toeroek Bela , Mathew Thomas , Olah George A. 
Published: April 2012

AbstractA convenient synthesis of benzaldimines from ketones and benzylamine is developed using Nafion or its silica‐supported analogue Nafion SAC‐13 as effective Broenstedt acid catalyst.
ChemInform Abstract: tert‐Butylnitrite as a Convenient and Easy‐Removable Oxidant for the Conversion of Benzylic Alcohols to Ketones and Aldehydes.
Authors: Hamasaki Akiyuki , Kuwada Hideyuki , Tokunaga Makoto 
Published: April 2012

AbstractThe method allows the oxidation to the corresponding carbonyl compounds without significant formation of the corresponding carboxylic acids.
ChemInform Abstract: β‐Alanine‐DBU: A Highly Efficient Catalytic System for Knoevenagel‐Doebner Reaction under Mild Conditions.
Authors: Zhu Lingjian , Lei Ning , Miao Zhenyuan , Sheng Chunquan , Zhuang Chunlin , Yao Jianzhong , Zhang Wannian 
Published: April 2012

AbstractThe presented reaction pathway proceeds smoothly at ambient temperature, tolerates a variety of functional groups and avoids side reactions.
ChemInform Abstract: Reactivity of Unsaturated 5(4H)‐Oxazolones with Hg(II) Acetate: Synthesis of Methyl N‐Benzoylamino‐3‐arylacrylates.
Authors: Roiban Gheorghe‐Doru , Soler Tatiana , Contel Maria , Grosu Ion , Cativiela Carlos , Urriolabeitia Esteban P. 
Published: April 2012

AbstractThe high‐yielding process affords the title compounds without changing the stereochemistry of the substrates.
ChemInform Abstract: A General Palladium‐Catalyzed Aminocarbonylation of Phenols to Primary Benzamides via in situ Generation of Aryl Nonaflates.
Authors: Wu Xiao‐Feng , Neumann Helfried , Beller Matthias 
Published: April 2012

AbstractA mild, one‐pot procedure for the synthesis of benzamides from easily available phenols is reported.
ChemInform Abstract: Palladium‐Catalyzed Aminocarbonylation of Benzyl Chlorides Using Ammonia.
Authors: Wu Xiao‐Feng , Schranck Johannes , Neumann Helfried , Beller Matthias 
Published: April 2012

AbstractAn inexpensive palladium catalyst system and ammonia as the amine source are successfully applied for this atom‐efficient methodology.
ChemInform Abstract: Catalyst‐Free, Facile, and an Efficient Synthesis of α‐Aminonitriles Employing Zn(CN)2 as an Ecofriendly Cyanating Agent.
Authors: Shah Sakshi , Singh Baldev 
Published: April 2012

AbstractThe three‐component condensation process proceeds under very mild conditions in the absence of toxic, moisture‐sensitive catalysts or volatile solvents.
ChemInform Abstract: Cross‐Coupling of Aryl Grignard Reagents with Aryl Iodides and Bromides Through SRN1 Pathway.
Authors: Shirakawa Eiji , Hayashi Yumi , Itoh Ken‐ichi , Watabe Ryo , Uchiyama Nanase , Konagaya Wataru , Masui Seiji , Hayashi Tamio 
Published: April 2012

AbstractThe reaction with aryl iodides or bromides proceeds without the need for a transition‐metal catalyst.
ChemInform Abstract: Ligand‐Free Hiyama Cross‐Coupling Reaction Catalyzed by Palladium on Carbon.
Authors: Yanase Takayoshi , Monguchi Yasunari , Sajiki Hironao 
Published: April 2012

AbstractA wide range of aryl bromides and aryltrialkoxysilane derivatives (II) can be employed whereas, aryl chlorides give the desired products in only poor yields.
ChemInform Abstract: Silicotungstic Acid Catalyzed Claisen Schmidt Condensation Reaction: An Efficient Protocol for Synthesis of 1,3‐Diaryl‐2‐propenones.
Authors: Rajput Jaspreet , Kaur Gagandeep 
Published: April 2012

AbstractThe condensation of acetophenones with aldehydes proceeds highly chemoselective under neat conditions to yield the title compounds (III) as exclusive (E) isomers.
ChemInform Abstract: Stereoselective Synthesis of Melatonin Receptor Agonist Ramelteon via Asymmetric Michael Addition.
Authors: Zhang Xuan , Yuan Wei , Luo Yu , Huang Qing‐Qing , Lu Wei 
Published: April 2012

AbstractA new approach to synthesize ramelteon (VII) and its analogue (IV) is presented via the highly effective and enantioselective title addition reaction as the key step.
ChemInform Abstract: Enantioselective [2 + 2 + 2] Cycloisomerization of Alkynes in the Synthesis of Helicenes: The Search for Effective Chiral Ligands.
Authors: Stara Irena G. , Andronova Angelina , Kollarovic Adrian , Vyskocil Stepan , Juge Sylvain , Lloyd‐Jones Guy C. , Guiry Patrick J. , Stary Ivo 
Published: April 2012

AbstractIn order to construct helicene backbones in nonracemic form under Ni(0) catalysis, a large collection of phosphorus ligands is tested to achieve an enantioselective cycloisomerization of aromatic triynes.
ChemInform Abstract: Effect of Substituents in the Propynyl Fragment and at the Nitrogen Atom on the Intramolecular Cyclization of (3‐Aryl‐2‐propynyl)‐(4‐hydroxy‐2‐butynyl)ammonium Chlorides and also on the Recyclization of the Products Formed.
Authors: Khachatryan A. A. 
Published: April 2012

AbstractThe influence of the reaction conditions on the intramolecular cyclization/recyclization cascade is discussed taking also substituent effects into consideration.
ChemInform Abstract: Direct Arylation of Arene and N‐Heteroarenes with Diaryliodonium Salts Without the Use of Transition Metal Catalyst.
Authors: Wen Jun , Zhang Ruo‐Yi , Chen Shan‐Yong , Zhang Ji , Yu Xiao‐Qi 
Published: April 2012

AbstractIt allows a new and simple access to various biaryl structures.
ChemInform Abstract: Palladium‐Catalyzed Direct Arylations of NH‐Free Pyrrole and N‐Tosylpyrrole with Aryl Bromides.
Authors: Bheeter Charles Beromeo , Bera Jitendra K. , Doucet Henri 
Published: April 2012

AbstractThe arylations are highly regioselective in favor of the C‐2 position.
ChemInform Abstract: 1,3‐Dipolar Cycloaddition Reaction in Porphyrin Systems with Functionalized Alkyl Nitrile Oxides — Synthesis of Isoxazoline‐Fused Chlorins.
Authors: Wyrebek Przemyslaw , Mikus Agnieszka , Ostrowski Stanislaw 
Published: April 2012

AbstractAn approach to fused isoxazoline‐type chlorins (III) by dipolar [3 + 2]cycloaddition of in situ generated alkyl nitrile oxides to meso‐tetraphenylporphyrin is presented.
ChemInform Abstract: Rhodium‐Catalyzed Addition of Boronic Acids to Vinylogous Imines Generated in situ from Sulfonylindoles.
Authors: Cao Liang‐Liang , Ye Zhi‐Shi , Jiang Guo‐Fang , Zhou Yong‐Gui 
Published: April 2012

AbstractA variety of aryl‐ and alkyl‐substituted sulfonylindoles smoothly undergoes Rh‐catalyzed arylation reaction to give indole derivatives (III), (V), (VII) in moderate to excellent yields.
ChemInform Abstract: First Example of the Reaction of Unsymmetrical Dienones with a 1,3‐Dipole. Synthesis of Spiropyrrolidines.
Authors: Klochkova I. N. , Aniskov A. A. , Schekina M. P. 
Published: April 2012

AbstractThe three‐component reaction between isatin, unsymmetrical dienones (II), and sarcosine (III) yields a mixture of novel regioisomeric spiropyrrolidines (IV) and (V).
ChemInform Abstract: Ni(ClO4)2‐Catalyzed Regio‐ and Diastereoselective [3 + 2] Cycloaddition of Indoles and Aryl Oxiranyl‐dicarboxylates/Diketones: A Facile Access to Furo[3,4‐b]indoles.
Authors: Zhang Jieming , Chen Zuliang , Wu Hai‐Hong , Zhang Junliang 
Published: April 2012

AbstractIn most cases, the endo‐isomer is also formed as minor product.
ChemInform Abstract: Ionic Diamine Rhodium Complex Catalyzed Reductive N‐Heterocyclization of N‐(2‐Nitroarylidene)amines.
Authors: Okuro Kazumi , Gurnham Joanna , Alper Howard 
Published: April 2012

AbstractA simple protocol allows the transformation of substrates (I) in the presence of carbon monoxide to yield the corresponding 2H‐indazoles.
ChemInform Abstract: Diphenylparabanic Acid as a Synthon for the Synthesis of α‐Diketones and α‐Ketocarboxylic Acids.
Authors: Watanabe Nobuko , Hamano Mitsutaka , Todaka Shota , Asaeda Takahiro , Ijuin Hisako K. , Matsumoto Masakatsu 
Published: April 2012

AbstractA number of symmetrical and unsymmetrical α‐diketones and α‐ketocarboxylic acids can be prepared.
ChemInform Abstract: Powerful Approach to Heterocyclic Skeletal Diversity by Sequential Three‐Component Reaction of Amines, Isothiocyanates, and 1,2‐Diaza‐1,3‐dienes.
Authors: Attanasi Orazio A. , Bartoccini Silvia , Favi Gianfranco , Giorgi Gianluca , Perrulli Francesca Romana , Santeusanio Stefania 
Published: April 2012

AbstractThe method is highly efficient for the preparation of 2‐thiohydantoins and 2‐iminothiazolidinones.
ChemInform Abstract: Intramolecular Carbonyl Nitroso Ene Reaction Catalyzed by Iron(III) Chloride/Hydrogen Peroxide as an Efficient Tool for Direct Allylic Amination.
Authors: Atkinson Duncan , Kabeshov Mikhail A. , Edgar Mark , Malkov Andrei V. 
Published: April 2012

AbstractTitle reaction is successfully applied to the oxidative ring closure of hydroxamic acids towards oxazolidinones, e.g. (II), (IV), (VI) and (X).
ChemInform Abstract: Enantioselective Cyclization Reactions of (Z)‐N‐Benzoyl‐α‐dehydro(1‐naphthyl)alanine N′‐Arylamides Initiated by Photoinduced Electron Transfer from Chiral Prolinol.
Authors: Yadai Hiroyuki , Sato Yuhki , Igarashi Tetsutaro , Sakurai Tadamitsu 
Published: April 2012

AbstractThe irradiation of amide (I) in the presence of a prolinol catalyst leads to a diastereomeric mixture of dihydrooxazoles (II) and (III) in low to moderate enantioselectivities, whilst the analogous reaction of compound (IV) provides racemic diastereomers (V) and (VI).
ChemInform Abstract: Synthesis of 6‐Substituted 2‐Pyrrolyl and Indolyl Benzoxazoles by Intramolecular O‐Arylation in Photostimulated Reactions.
Authors: Vaillard Victoria A. , Guastavino Javier F. , Buden Maria E. , Bardagi Javier I. , Barolo Silvia M. , Rossi Roberto A. 
Published: April 2012

AbstractIrradiation of amides of type (I), (IIII), and (V) allows a simple and efficient access to pyrrolyl and indolyl benzoxazoles.
ChemInform Abstract: C‐[o‐(p‐Tolyl)sulfinyl]phenylnitrones. Synthesis and Reactivity in [3 + 2] Dipolar Cycloadditions.
Authors: Garcia Ruano Jose Luis , Fraile Alberto , Nunez Alberto , Martin M. Rosario , Alonso Ines 
Published: April 2012

AbstractTitle nitrones (III) react with different dipolarophiles to afford corresponding isoxazolidines.
ChemInform Abstract: Reactions of 2‐Diazo‐1,3‐dicarbonyl Compounds with Aromatic Thioketones (Superdipolarophiles).
Authors: Nikolaev V. A. , Ivanov A. V. , Shakhmin A. A. , Schulze B. , Rodina L. L. 
Published: April 2012

AbstractDiazocarbonyl compounds (I) and (IV) react with thioketone (II) to give tetrasubstituted 1,3‐oxathioles (III) or (V), respectively.
ChemInform Abstract: Novel Thiazolone Derivatives of N‐Aryl‐β‐alanines.
Authors: Stasevych M. , Lubenets V. , Musyanovych R. , Novikov V. , Mickevicius V. , Beresnevicius Z. I. , Rutkauskas K. 
Published: April 2012

AbstractNovel 4‐thiazolone derivatives of N‐aryl‐β‐alanines are synthesized by reaction of (I) with monochloroacetic acid or maleic anhydride.
ChemInform Abstract: La(OTf)3‐Catalyzed One‐Pot Synthesis of meso‐Substituted Porphyrinic Thiazolidinones.
Authors: Bhatt Ranjan K. , Sharma Satyasheel , Nath Mahendra 
Published: April 2012

AbstractAn improved procedure is used for the selective nitration of a phenyl group of meso‐tetraphenylperphyrin (I).
ChemInform Abstract: Unexpected Synthesis of 3‐(2‐Aminothiazol‐5‐yl)‐3‐arylpropanoates Through a One‐Pot Four‐Component Procedure.
Authors: Li Zheng , Li Yanbo 
Published: April 2012

AbstractThe title compounds (V) (9 examples) are efficiently obtained by a catalyst‐free, one‐pot four‐component reaction of 2‐aminothiazole, various aromatic aldehydes, Meldrum′s acid, and aliphatic alcohols.
ChemInform Abstract: 1,3‐Dibromo‐5,5‐dimethylhydantoin Catalyzed One‐Pot Synthesis of 2‐Arylbenzothiazoles.
Authors: Yang Xiaojuan , Liang Jinying 
Published: April 2012

AbstractA simple, convenient and efficient method for the synthesis of 2‐arylbenzothiazoles using 1,3‐dibromo‐5,5‐dimethylhydantoin as catalyst is reported and a possible mechanism is proposed.
ChemInform Abstract: Electrophilic Heterocyclization of 4,5‐Disubstituted 3‐Allylthio‐4H‐1,2,4‐triazoles by the Action of Halogens.
Authors: Usenko R. M. , Slivka M. V. , Lendel V. G. 
Published: April 2012

AbstractElectrophilic heterocyclization of 3‐allylthiotriazoles (I) by action of bromine or iodine results in the regioselective formation of thiazolotriazolium salts [cf.
ChemInform Abstract: Synthesis and Antimicrobial Evaluation of New 1‐{[4‐(4‐Halogenophenyl)‐4H‐1,2,4‐triazol‐3‐yl] sulfanyl}acetyl‐4‐substituted Thiosemicarbazides and Products of Their Cyclization.
Authors: Trotsko Nazar , Krol Jakub , Siwek Agata , Wujec Monika , Kosikowska Urszula , Malm Anna 
Published: April 2012

AbstractThe compounds (III) and (IV) are screened for their antimicrobial activity against Gram‐positive and Gram‐negative bacteria.
ChemInform Abstract: Petasis Three‐Component Coupling Reactions of Hydrazides for the Synthesis of Oxadiazolones and Oxazolidinones.
Authors: Le Quement Sebastian T. , Flagstad Thomas , Mikkelsen Remi J. T. , Hansen Mette R. , Givskov Michael C. , Nielsen Thomas E. 
Published: April 2012

AbstractTreatment of hydrazides with α‐hydroxy aldehyde and vinyl or aryl boronic acids provides a widely applicable methods to prepare hydrazide alcohols.
ChemInform Abstract: One‐Pot Enantioselective Synthesis of Functionalized Pyranocoumarins and 2‐Amino‐4H‐chromenes: Discovery of a Type of Potent Antibacterial Agent.
Authors: Zhang Gen , Zhang Yaohu , Yan Jiexi , Chen Ru , Wang Shoulei , Ma Yunxia , Wang Rui 
Published: April 2012

AbstractThe chromene derivative (XVII) shows high antibiotic activity against Staphylococcus aureus.
ChemInform Abstract: Palladium‐Catalyzed Cascade Cyclization—Oxidative Olefination of tert‐Butyl 2‐Alkynylbenzoates.
Authors: Zhao Peng , Chen Dan , Song Guoyong , Han Keli , Li Xingwei 
Published: April 2012

AbstractGenerally, the method provides a facile approach to alkenylated isocoumarins.
ChemInform Abstract: Catalyst‐Free Amination of 2‐Chloronicotinic Acid in Water under Microwave Irradiation.
Authors: Li Zheng‐hua , Xia Zhi‐ning , Chen Gang 
Published: April 2012

AbstractThe method for the synthesis of 2‐arylaminonicotinic acid derivatives is simple, efficient, and environmentally benign.
ChemInform Abstract: Silver‐Mediated C—H Activation: Oxidation Coupling/Cyclization of N‐Arylimines and Alkynes for the Synthesis of Quinolines.
Authors: Zhang Xu , Liu Baoqing , Shu Xin , Gao Yang , Lv Haipeng , Zhu Jin 
Published: April 2012

AbstractIn the presence of AgNTf2 and TfOH, N‐arylimines generated in situ react with alkynes to afford quinolines.
ChemInform Abstract: Synthesis of Quinolines via Friedlaender Reaction in Water and under Catalyst‐Free Conditions.
Authors: Shen Qiang , Wang Limin , Yu Jianjun , Liu Mingtao , Qiu Jun , Fang Lei , Guo Fenglou , Tang Jun 
Published: April 2012

AbstractAn effective, mild, and green synthesis of the title compounds (III), (V) and (VII) is presented.
ChemInform Abstract: Synthesis of Quinolin‐2‐ones by an Intramolecular Knoevenagel Condensation and by Tandem Michael—Knoevenagel Heterocyclization.
Authors: Mochalov S. S. , Chasanov M. I. , Fedotov A. N. , Zefirov N. S. 
Published: April 2012

AbstractThe different behavior of ortho‐(acylamino)acylbenzenes like (III), (V), and (VIII) towards sodium ethylate is studied.
ChemInform Abstract: Ugi—Smiles Couplings of 4‐Substituted Pyridine Derivatives: A Fast Access to Chloroquine Analogues.
Authors: El Kaim Laurent , Grimaud Laurence , Pravin Patil 
Published: April 2012

AbstractThe Ugi—Smiles coupling of the pyridines (XI) and (XIV) and the quinolines (I) and (VII) allows a convenient access to 4‐aminated derivatives.
ChemInform Abstract: DBU‐Promoted Cyclization of ortho‐(3‐Hydroxy‐1‐alkynyl)benzamide: Synthesis of trans‐3,4‐Dihydroisoquinolin‐1(2H)‐ones and (E)‐4‐(1‐Alkenyl)isoquinolin‐1(2H)‐ones.
Authors: Chen Wanli , Cui Jing , Zhu Yinghong , Hu Xianchao , Mo Weimin 
Published: April 2012

AbstractReaction of benzamides of type (I) with DBU results in efficient formation of the title structures depending on the nature of the propargyl substituent.
ChemInform Abstract: Condensed Isoquinolines. Part 38. Azolo[b]isoquinolines from 2‐(Halomethyl)benzoic Acid Derivatives.
Authors: Kovtunenko V. A. , Potikha L. M. , Sypchenko V. V. , Dmukhovsky A. I. , Shelepyuk A. V. 
Published: April 2012

AbstractReaction of 2‐halomethylbenzonitriles (I) or related benzoate (XI) with azoles affords quaternary azolium salts, which undergo a base‐promoted intramolecular acylation furnishing fused isoquinoline derivatives.
ChemInform Abstract: A Convenient Method for the Synthesis of 1‐R‐1,2,3,4‐Tetrahydrobenzothieno[2,3‐c]pyridine Derivatives.
Authors: Tolkunov V. S. , Eresko A. B. , Mazepa A. V. , Tolkunov S. V. 
Published: April 2012

AbstractThe reagent system DMF—Tips‐Cl is used in a Pictet—Spengler reaction leading to title compounds (III).
ChemInform Abstract: SnCl2‐Catalyzed Selective Atom Economic Imino Diels—Alder Reaction: Synthesis of 2‐(1H‐Pyrrolo[2,3‐b]pyridin‐3‐yl)quinolines.
Authors: Suresh Rajendran , Muthusubramanian Shanmugam , Senthilkumaran Rajendran , Manickam Govindaswamy 
Published: April 2012

AbstractIt provides a facile and efficient approach to a wide range of biologically important title quinolines.
ChemInform Abstract: Platinum‐Catalyzed 1,3‐Acyloxy Migration/[1,5]‐Hydride Transfer/Cycloaddition Sequence: Synthesis of Ring‐Fused Tetrahydroquinolines.
Authors: Xia Xiao‐Feng , Song Xian‐Rong , Wang Ning , Wei Hai‐Long , Liu Xue‐Yuan , Liang Yong‐Min 
Published: April 2012

AbstractMultifunctionalized ring‐fused tetrahydroquinolines (II) are obtained via a novel platinum‐catalyzed sequence with subsequent deacylation.
ChemInform Abstract: Preparation of New Nitrogen‐Bridged Heterocycles. Part 74. Molecular Recognition of 2‐(Arylmethylthio)indolizine Derivatives Through an Intramolecular Arene‐π(cation) Interaction.
Authors: Kakehi Akikazu , Itoh Kennosuke , Suga Hiroyuki , Yamaguchi Nobuhiro , Abe Takashi , Yuda Yohei , Katsumata Haruka 
Published: April 2012

AbstractA variety of substituted indolizines, e.g. compounds (III), is readily obtained by a convenient one‐pot procedure involving S‐alkylation of pyridinium ethylides (I), followed by treatment with a base and a subsequent dehydrogenation (27 examples).
ChemInform Abstract: Polycyclic Quinolones. Part 2. Synthesis of Novel 4‐Oxo‐1,4‐dihydrobenzo[h][1,3]thiazeto[3,2‐a]quinoline Carboxylic Acids via Oxidative Cyclization of the Corresponding 2‐Mercaptoquinoline Precursors.
Authors: Ahmed Abeer , Dawe Louise N. , Daneshtalab Mohsen 
Published: April 2012

AbstractSticking point in the formation of the 1,3‐thiazeto[3,2‐a]quinoline skeleton is a cyclization step using the system vicinal dihaloalkane / potassium iodide as a controlled source of iodine monobromide which halogenates the carbon α to the thiol.
ChemInform Abstract: Reaction of Bis(prop‐2‐yn‐1‐yl) Sulfide with Sulfur Dichloride. First Example of Cyclization of Bis(prop‐2‐yn‐1‐yl) Chalcogenides by the Action of Chalcogen Halides.
Authors: Martynov A. V. , Amosova S. V. 
Published: April 2012

Abstract(E,E)‐2,6‐Bis(chloromethylidene)‐1,4‐dithiane (II) is regio‐ and stereoselectively obtained in an anti‐Markovnikov addition at both triple bonds of compound (I).
ChemInform Abstract: Three‐Component Reaction of Acetylperimidines with Sodium Azide and Nitrite in Polyphosphoric Acid.
Authors: Aksenov A. V. , Lyakhovnenko A. S. , Spicin A. N. , Aksenova I. V. 
Published: April 2012

AbstractThe tandem transformation Schmidt‐reaction—nitrosation—heterocyclization leads to previously unknown tetraazacyclopenta[c,d]phenalenes (II) together with N‐oxides (III) as main products.
ChemInform Abstract: Three‐Component Reaction of Perimidines with Acetophenone and Sodium Nitrite in Polyphosphoric Acid.
Authors: Aksenov A. V. , Lyakhovnenko A. S. , Aksenov N. A. , Spicin A. N. , Aksenova I. V. 
Published: April 2012

AbstractPossible reaction mechanisms leading to both peri‐anellation products (III) and (IV) are proposed.
ChemInform Abstract: Cl3CCN/PPh3 and CBr4/PPh3: Two Efficient Reagent Systems for the Preparation of N‐Heteroaromatic Halides.
Authors: Kijrungphaiboon Woranun , Chantarasriwong Oraphin , Chavasiri Wainthorn 
Published: April 2012

AbstractN‐Heteroaromatic hydroxy compounds are readily converted into the corresponding chlorides or bromides under mild and acid‐free conditions.
ChemInform Abstract: Organocatalytic Michael—Koevenagel—Hetero‐Diels—Alder Reactions: An Efficient Asymmetric One‐Pot Strategy to Isochromene Pyrimidinedione Derivatives.
Authors: Hong Bor‐Cherng , Dange Nitin S. , Ding Chun‐Feng , Liao Ju‐Hsiou 
Published: April 2012

AbstractThis method can also be applied to prepare hydroisochromenones such as (VIII).