bluuebunny/crossref_metadata_2025_split huggingface dataset:
ChemInform Abstract: Effect of Additives on Catalytic Activity of 12‐Molybdophosphoric Acid for Methacrolein Oxidation.
Authors: EGUCHI K. , YAMAMOTO S. , YAMAZOE N. , SEIYAMA T. 
Published: May 2016

AbstractIt is found that the addition of As5+ to H3PMo12O40 improves the selectivity to methacrylic acid (MAA) but lowers the conversion efficiency of the catalyst, whereas addition of Cu2+ improves the catalytic activity but lowers the MAA selectivity.
ChemInform Abstract: Competitive Pathways in Palladium‐Catalyzed Reactions of ortho‐Halogenophenols. New Syntheses of Heterocyclic Compounds.
Authors: AN Z.‐W. , CATELLANI M. , CHIUSOLI G. P. 
Published: May 2016

AbstractPd‐catalyzed reactions of ortho‐halogenophenols (I), (VI), (IX) take a different course, depending on competition between O‐H and C‐Hal bonds for the initial step, leading either to the products (IV) + (V) or (VII), (X).
ChemInform Abstract: Studies on as‐Triazine Derivatives. Part 15. Intramolecular Reverse‐Electron Demand Diels‐Alder Reaction of 1,2,4‐Triazine Derivatives.
Authors: SAGI M. , WADA K. , KONNO S. , YAMANAKA H. 
Published: May 2016

AbstractThe triazinecarboxylic acid (I) is converted into the acetylenic esters (IV) and (VII) which release nitrogen upon thermolysis, forming the fused pyridines (V) and (VIII) respectively.
ChemInform Abstract: 5‐8 Fused Ring Compounds. Part 5. The Conformations of Eight‐Membered Rings in 5‐8‐5 Fused Ring Compounds and Their cis‐trans Isomerization.
Authors: UMEHARA M. , HISHIDA S. , OKUDA M. , OHBA S. , ITO M. , SAITO Y. , ZEN S. 
Published: May 2016

AbstractThe photocycloadduct (I) of appropriate bicyclononanedione to cyclopentene undergoes isomerization under basic conditions to give (II) ( P21/n, Z=2) and (III) (P21/a, Z=4).
ChemInform Abstract: Reactions of Azo and Azoxy Sulfones with Transition Metal Complexes. Part 8. Reactions of Arylazoxy Aryl Sulfones with α,β‐Unsaturated Esters and Nitriles in the Presence of a Palladium(0) Catalyst.
Authors: KAMIGATA N. , SATOH M. , FUKUSHIMA T. 
Published: May 2016

AbstractAryl‐substituted compounds such as (III) are prepared selectively.
ChemInform Abstract: Synthesis and Chemical Transformations of 4,5‐Homosnoutene Derivatives: An Attempted New Access onto the (CH)12 Energy Hypersurface.
Authors: KIRCHMEYER S. , DE MEIJERE A. 
Published: May 2016

AbstractThe syntheses of the new 4,5‐homosnoutene (III) and some of its derivatives are described and their reactions towards ring enlargement to the skeleton of (IV) are investigated.
ChemInform Abstract: Chemistry of Indole Glucosinolates. Intermediacy of Indol‐3‐ylmethyl Isothiocyanates in the Enzymic Hydrolysis of Indole Glucosinolates.
Authors: HANLEY A. B. , PARSLEY K. R. , LEWIS J. A. , FENWICK G. R. 
Published: May 2016

AbstractThe hydrolysis of (I) proceeds via the isothiocyanate (II) yielding (III) and (IV).
ChemInform Abstract: An Approach Toward the Synthesis of 4‐Phenyl‐5‐arylimino‐δ2‐1,2,3,4‐thiatriazolines.
Authors: L'ABBE G. , FRANEK W. , TOPPET S. , DELBEKE P. 
Published: May 2016

AbstractThe desired title compounds (III) are unstable and decompose in situ to give the benzothiazole (IV) and the benzothiazoline (V) which results from further phenylation of (IV).
ChemInform Abstract: Thienylpyridines as a New Fluorescent Reagent. Part 1. Determination of Primary Alkylamines with 5‐(4‐Pyridyl)‐2‐thiophenecarbaldehyde Using HPLC.
Authors: NAKAJIMA R. , YAMAMOTO A. , HARA T. 
Published: May 2016

AbstractThe fluorescent aldehyde (III) forms non‐fluorescent Schiff bases when prim. amines such as (IV) are used.
ChemInform Abstract: Chemistry of 3‐Hydroxypyridine. Part 3. Synthesis of Substituted 3‐(Fluoro(chloro)alkoxy)pyridines from Halo‐ or Amino‐3‐hydroxypyridines.
Authors: FUSS A. , KOCH V. 
Published: May 2016

AbstractHalogenated 3‐hydroxypyridines such as (I) or (IV) undergo base‐catalyzed addition reaction with fluoro olefines such as (II) to yield fluorochloroalkoxy derivatives such as (III) or (V).
ChemInform Abstract: Synthesis of Tetraleno(3,4‐c)isocoumarins and Tetraleno(3,4‐c)isoquinolones.
Authors: SRIVASTAVA J. N. , KUMAR P. , THAKUR S. N. , SAHAY L. K. , SRIVASTAVA S. 
Published: May 2016

AbstractThe condensation of benzoic acids such as (I) with 2‐bromo‐α‐tetralone (II) yields the ester (III) which undergoes ring‐closure to form the isocoumarin (IV).
ChemInform Abstract: Synthesis of Some Quinones of Relevance to a Synthetic Approach to Amphimedine. Crystal Structure Determination of 1‐Methylpyrido(4,3‐g)quinoline‐4,5,10‐trione 5‐N,N‐Diisopropylhydrazone.
Authors: MEGHANI P. , MILLS O. S. , JOULE J. A. 
Published: May 2016

AbstractTreatment of the carboxybenzoylpyridone (I) with concentrated sulfuric acid produces the methylbenzoquinolinetrione (II).
ChemInform Abstract: Stereocontrolled Conversion of 1‐(3‐Hydroxyprop‐1‐enyl)uracil Isomers into Polyfunctional 3,9‐Propano‐ and 3,9(9,3)‐Propeno‐aza‐9H‐xanthines.
Authors: JOKIC M. , SKARIC V. 
Published: May 2016

AbstractThe new title compounds, such as (XI) and (XII), are prepared via the key intermediate (VIII), which undergoes two types of intramolecular cyclisation reaction yielding the cis‐compound (IX) and the trans‐product (VIII) which is elaborated to (XI) and (XII).
ChemInform Abstract: Synthesis and Heteroannulation of 3,4‐Dibenzoyl‐1‐phenyl‐2a,5‐diazabenz(cd)azulene.
Authors: ABE N. , UENO T. 
Published: May 2016

AbstractReaction of (I) with the diester (II) gives a complex mixture from which the product (IIIa) is isolated in a low yield.
ChemInform Abstract: Synthesis and Anticonvulsive Activity of Propranolol Derivatives with a Tertiary Nitrogen Atom.
Authors: LOHMANN D. , LEHMANN D. , MORGENSTERN E. , FAUST G. 
Published: May 2016

AbstractThe title compounds (III) and (V), synthesized by condensation of 1‐(1‐naphthoxy)‐2,3‐epoxypropane (I) with the cyclic amines, e.g. (II) or (IV), show anticonvulsive activity.
ChemInform Abstract: Disubstituted Acetaldehydes with a Phosphoryl Group in the Japp‐Klingemann Reaction.
Authors: BUZYKIN B. I. , SOKOLOV M. P. , PAVLOV V. A. , IVANOVA V. N. , CHERTANOVA L. F. , ZYABLIKOVA T. A. 
Published: May 2016

AbstractThe dialkoxyphosphorylhaloacetaldehydes (I) are coupled with diazonium salts, prepared in situ from the anilines (II), to give the phosphorylhydrazonoyl halides (IV).
ChemInform Abstract: Prototropic and Phosphorotropic Migration in Phosphorylated 2‐Azaallylic Systems. Part 6. Reaction of N‐Benzyl‐4‐nitrobenzimidoyl‐ and 4‐(4‐Nitrobenzyl)benzimidoyl Chloride with Triphenylphosphine and Amidophosphites.
Authors: ONYS'KO P. P. , KIM T. V. , KISELEVA E. I. , PROKOPENKO V. P. , SINITSA A. D. 
Published: May 2016

AbstractBoth benzimidoyl chlorides (I) and (V) react with triphenylphosphine (II) to give a mixture of the isomeric phosphonium salts (III) and (IV).
ChemInform Abstract: Reaction of P(III) Acid tert‐Butyl Esters and Ester Amides with Phenyl Isothiocyanate.
Authors: GAZIZOV T. KH. , CHUGUNOV YU. V. , SAL'KEEVA L. K. 
Published: May 2016

AbstractReaction of the phosphites (I) with phenyl isothiocyanate (II) under mild conditions leads to the formation of the thiocarbamoylphosphonates (III).
ChemInform Abstract: Reaction of Alkinylthiophosphinous and Phosphonous Acid S‐Esters with Nitrilimines.
Authors: NAMESTNIKOV V. I. , TRISHIN YU. G. , TAMM L. A. , CHISTOKLETOV V. N. 
Published: May 2016

AbstractThe phosphinites (I) and (IV) or the phosphonites (VI) and (VIII) are coupled with nitrilimines, generated in situ from hydrazonyl halides such as (II), to give the diazaphosphorines (III), (V), (VII), and (IX) respectively.
ChemInform Abstract: Direct Approaches to Zinc Polychalcogenide Chemistry: ZnS6(N‐MeIm)2 and ZnSe4(N‐MeIm)2.
Authors: DEV S. , RAMLI E. , RAUCHFUSS T. B. , STERN C. L. 
Published: May 2016

AbstractN‐Methylimidazole suspensions of zinc exhibit particularly well behaved reactivity toward sulfur yielding the hexasulfide (III) (space group P1, Z=2).
ChemInform Abstract: Reactions of Coordinated Ligands. Part 6. Stabilization of RP(OH)2, RPHNEt2, and RPHCl as Ligands in (CO)5ML.
Authors: DIEMERT K. , HINZ A. , KUCHEN W. , LORENZEN D. 
Published: May 2016

AbstractStarting with Cr complexes of the type (I) new complexes of the type (II), (III), (IV), and (V) are obtained according to the scheme.
ChemInform Abstract: Oxidative Addition of Organic Halides to (η‐C5H5)3U(THF) (THF: Tetrahydrofuran). A Convenient New Synthesis of Triscyclopentadienyl Uranium(IV) Hydrocarbyl Complexes.
Authors: VILLIERS C. , EPHRITIKHINE M. 
Published: May 2016

AbstractThe THF title complex (I) reacts with organic halides e.g. (II) to give equimolar mixture of organyl U(IV) compounds and U(IV) halides such as (III) and (IV).
ChemInform Abstract: Synthesis, Structure, and Electrochemical Properties of Mixed‐Ligand Iron‐Sulfur Cubane Clusters with Two Cp* and Two Dithiolene Ligands (Cp* = η‐C5H5, η‐C5Me5).
Authors: INOMATA S. , TOBITA H. , OGINO H. 
Published: May 2016

AbstractThe reaction of the complexes (I) with S8 and the acetylene (II) leads to the first synthesis of new mixed‐ligand, homometallic metal‐chalcogen cubane clusters such as (III).
ChemInform Abstract: Redox Regulation Based on the pH‐Dependent Hydrolysis of 2‐Pyridinecarboxaldehyde Coordinated to Ruthenium(II).
Authors: BLAHO J. K. , GOLDSBY K. A. 
Published: May 2016

AbstractThe reversible hydrolysis of 2‐pyridinecarboxaldehyde coordinated to Ru(II) (cf.
ChemInform Abstract: Comparative Studies on Reactions of α,β‐ and β,γ‐Unsaturated Amides and Acids with Nickel(0), Palladium(0), and Platinum(0) Complexes. Preparation of New Five‐ and Six‐Membered Nickel‐ and Palladium‐Containing Cyclic Amide and Ester Complexes.
Authors: YAMAMOTO T. , SANO K. , OSAKADA K. , KOMIYA S. , YAMAMOTO A. , KUSHI Y. , TADA T. 
Published: May 2016

AbstractThe zerovalent Ni complex (I) forms with α,β‐unsaturated amides and acids nickel‐containing five‐membered cyclic amide and ester complexes, which are mainly polymeric.
ChemInform Abstract: Solubilizing the Thallium‐Platinum Unit of Tl2Pt(CN)4. Preparation and Use of a New Crown Ether/Phosphine Hybrid Ligand for Linking Main‐Group and Transition‐Metal Ions.
Authors: BALCH A. L. , ROWLEY S. P. 
Published: May 2016

AbstractThe pseudooctahedral monomeric complex Tl2Pt(CN)4 containing monocoordinate Tl+ dissociates into Tl+ and Pt(CN)42‐ when dissolved in polar solvents (H2O, DMSO).
ChemInform Abstract: Effect of a Neighbouring Methoxy Group upon the Course of Acid‐Catalysed Cleavage of a Steroidal Epoxyketone.
Authors: MORRISON G. A. , TIDESWELL J. A. , WILKINSON J. B. 
Published: May 2016

AbstractIt is shown, that the 3‐methoxy group has a profound effect upon the cleavage of the oxirane ring in steroids.
ChemInform Abstract: Synthesis and in vivo Antitumor and Antiviral Activities of 2′‐Deoxyribofuranosyl and Arabinofuranosyl Nucleosides of Certain Purine‐6‐sulfenamides, ‐sulfinamides and ‐sulfonamides.
Authors: REVANKAR G. R. , HANNA N. B. , RAMASAMY K. , LARSON S. B. , SMEE D. F. , FINCH R. A. , AVERY T. L. , ROBINS R. K. 
Published: May 2016

AbstractThe amination products (III) from the thiopurines (I) are oxidized to the corresponding (R,S)‐sulfoxides (IV) or sulfones (V).
ChemInform Abstract: The Synthesis of Carbapenem and Carbacephem Derivatives by a Combination of 4CC with the Chemistry of Oxazoles and N‐Boc Carbonamides.
Authors: NEYER G. , ACHATZ J. , DANZER B. , UGI I. 
Published: May 2016

AbstractThe diphenyloxazolylaminopentanoic acid (VIII), prepared from the propionic acid (I), is cyclized to give the azetidinone (XI).
ChemInform Abstract: Synthesis of Marine Toxins. A Biomimetic Approach to the Novel Spirobenzoquinonefuran Stypoldione.
Authors: BEGLEY M. J. , FISH P. V. , PATTENDEN G. , HODGSON S. T. 
Published: May 2016

AbstractThe spiro unit (VI), present in the natural product stypoldione (VII), shows growth inhibition of mouse leukaemia cells as well as (VII).
ChemInform Abstract: Silicon Dioxide Deposition by Atmospheric Pressure and Low‐Temperature CVD Using TEOS and Ozone.
Authors: FUJINO K. , NISHIMOTO Y. , TOKUMASU N. , MAEDA K. 
Published: May 2016

AbstractIt is demonstrated that high quality SiO2 films can be deposited on thermally grown oxide, silicon, and aluminum steps by atmospheric CVD at 400 °C using a mixture of (EtO)4Si and O3 as the source.
ChemInform Abstract: Comparative Study of the Passivity and the Breakdown of Passivity of Polycrystalline Iron in Different Alkaline Solutions.
Authors: ALBANI O. A. , GASSA L. M. , ZERBINO J. O. , VILCHE J. R. , ARVIA A. J. 
Published: May 2016

AbstractCombined voltammetric and ellipsometric measurements in 0.04 M NaOH and saturated Ca(OH)2 solutions with addition of chloride salt of concentrations up to 1 M indicate that the initial reactions of Fe(OH)2 formation at the inner part of the passive layer level (Fe3O4) are only slightly influenced by either the cation or the presence of Cl‐ in solution, whereas at the outer part of the passive layer (hydrous FeOOH), where Fe2+/F3+ redox reactions take place, a large influence of Na+, Ca2+, and Cl‐ is observed.
ChemInform Abstract: Hydrogenation Activity and Surface Composition of Perovskite‐Type Mixed Rhenium Oxides.
Authors: RYASHENTSEVA M. A. , DULOV A. A. , ABRAMOVA L. A. , TKACHENKO O. P. , FOMICHEV V. V. , VETROV A. E. 
Published: May 2016

AbstractPerovskite‐type compounds of composition A4MRe2□O12 (A: Ba, Sr; M: Co, Ni; □: vacancy in the cation lattice) are prepared (solid state reaction of metallic Re and the corresponding carbonates or oxides, ≦ 1100 °C) and shown to have high catalytic activity for the hydrogenation of benzene.
ChemInform Abstract: Structure and Reactivity of Ammonia Synthesis Catalysts Derived from CeRu2 Precursors: A Study by in situ X‐Ray Absorption Spectroscopy.
Authors: WALKER A. P. , RAYMENT T. , LAMBERT R. M. , OLDMAN R. J. 
Published: May 2016

AbstractIn the two systems studied, CeH2+x/Ru and CeO2/Ru (both derived from CeRu2).
ChemInform Abstract: Transport Properties of Anion‐Selective Membranes Based on Cobyrinates and Metalloporphyrin Complexes as Ionophores.
Authors: HUSER M. , MORF W. E. , FLURI K. , SEILER K. , SCHULTHESS P. , SIMON W. 
Published: May 2016

AbstractZero‐current counter‐transport studies as well as electrodialytic transport experiments on solvent polymeric membranes doped with ionophores for anions are carried out and compared with potentiometric measurements on the same membranes.
ChemInform Abstract: Oxidative Organic Electrochemistry: A Novel Intramolecular Coupling of Electron‐Rich Olefins.
Authors: MOELLER K. D. , MARZABADI M. R. , NEW D. G. , CHIANG M. Y. , KEITH S. 
Published: May 2016

AbstractThe anodic oxidation of electron‐rich enol ethers and olefinic nucleophiles such as (I) or (VII) under constant‐current conditions represents a new class of potentially useful carbon‐carbon bond forming reactions which leads to cyclized products such as (III)‐(VI) or (VIII) and (IX) with a moderate degree of diastereoselectivity.
ChemInform Abstract: Carbometallation of 1,4‐Bis(trimethylsilyl)butadiyne with Trimethylaluminum Using a Bis(cyclopentadienyl)metal Dichloride Catalyst.
Authors: KUSUMOTO T. , NISHIDE K. , HIYAMA T. 
Published: May 2016

AbstractCarbometallation of (I) in the presence of 1.3 mol% of Zr catalyst affords products such as (IV) and (V) with (E)‐configuration after treatment of the intermediate (III) with an electrophile like H2O or NCS.
ChemInform Abstract: Hydrogen Atom Transfer in Photolyzed (S,S)‐Bis(13‐bromo‐2‐deuteriotridecanoyl) Peroxide: Control of Regiospecificity by Crystal Chirality.
Authors: FENG X. W. , MCBRIDE J. M. 
Published: May 2016

AbstractIn order to study factors that influence reactions in structured environments, it is shown that prim. radical pairs derived from (I) (space group P43212) undergo transfer of "equatorial" α‐hydrogen.
ChemInform Abstract: Carbenes and the O‐H Bond: Spectroscopic Evidence for Protonation of Diarylcarbenes to Give Diarylcarbenium Ions.
Authors: KIRMSE W. , KILIAN J. , STEENKEN S. 
Published: May 2016

AbstractCorroboration is provided by time‐resolved conductivity for the formation of the carbenium ion (III) via protonation of the carbene (II).
ChemInform Abstract: Inert Solvent for Catalytic C‐H Activation. Achievement of High Conversion in Dehydrogenation of Alkane.
Authors: SAKAKURA T. , ISHIDA K. , TANAKA M. 
Published: May 2016

AbstractCyclooctane (I) is dehydrogenated in the presence of rhodium catalysts to give cyclooctene (II) and hydrogen (III).
ChemInform Abstract: Selenium‐Catalyzed Debromination of vic‐Dibromides to Alkenes with Cysteine or Glutathione.
Authors: YANADA K. , YANADA R. , MEGURI H. 
Published: May 2016

AbstractReductive debromination of the vic‐dibromides (I) and (IV) is achieved by treatment with cysteine in the presence of sodium selenite as the catalyst, producing the alkenes (II), (III), or (V).
ChemInform Abstract: Cathodic Synthesis of Cyclopropane Derivatives by Electrolysis of Activated Methylene Compounds in 1,2‐Dichloroethane Solution.
Authors: VASIL'EV A. A. , TATARINOVA V. I. , PETROSYAN V. A. 
Published: May 2016

AbstractElectrolysis of the activated methylene compounds (Ia) ‐ (If) in the presence of 1,2‐dichloroethane (II) gives the cyclopropane derivatives (IIIa) ‐ (IIIg).
ChemInform Abstract: A Ring Contraction of 6‐Alkoxy‐2,3‐dihydro‐6H‐pyran‐3‐ones to Polyfunctionalized Cyclopentenones.
Authors: KOLB H. C. , HOFFMANN H. M. R. 
Published: May 2016

AbstractThe ring contraction of the title pyranones such as (I), (IV) or (VI) to the cyclopentenones (II), (V) or (VII) is described under optimized (→ (II), (VII)) and two‐phase (→ (V)) conditions.
ChemInform Abstract: Synthetic Studies on Transition‐Metal‐Mediated Higher Order Cycloaddition Reactions: Highly Stereoselective Construction of Substituted Bicyclo(4.4.1)undecane Systems.
Authors: RIGBY J. H. , ATEEQ H. S. 
Published: May 2016

AbstractHigher order cycloaddition reactions are characterized by a high level of stereoselectivity and low chemical efficiency.
ChemInform Abstract: General and Highly Efficient Syntheses of m‐Fluoro Arenes Using Potassium Fluoride‐Exchange Method.
Authors: SUZUKI H. , YAZAWA N. , YOSHIDA Y. , FURUSAWA O. , KIMURA Y. 
Published: May 2016

AbstractTitle compounds such as (II), (IV) and (VI) are prepared in order to test their biological properties.
ChemInform Abstract: Synthesis of 2‐(Aminomethylene)‐2H,3H‐1‐benzothiophene‐3‐one from 3‐Bromo‐4H‐1‐benzothiopyran‐4‐one as a New Donor‐Acceptor Chromophore.
Authors: NAKAZUMI H. , WATANABE S. , MAEDA K. , KITAO T. 
Published: May 2016

Abstract3‐Bromo‐4H‐1‐benzothiopyran‐4‐one (I) reacts with the amines (II) in ethanol to give the ring contracted (aminomethylene)benzothiophenes (III) or (IV), together with the dimer (V).
ChemInform Abstract: β‐Lithiated Enol Ethers as Enolate Equivalents. Application to N‐Substituted Pyrrolidin‐3‐ones.
Authors: GILES M. , HADLEY M. S. , GALLAGHER T. 
Published: May 2016

AbstractTreatment of the gem‐dimethoxypyrrolidines (I) with tert‐butyllithium or lithium diisopropylamide yields the methoxypyrrolines (II) which are lithiated and then coupled with the aldehydes (III) or methyl iodide (VII), forming the alcohols (IV) and the methyl derivative (VIII) respectively.
ChemInform Abstract: A New Approach to 4‐(2‐Aminoethyl)indoles via Claisen ortho‐Amide Rearrangement of 3‐Hydroxy‐2‐methoxyindolines.
Authors: KAWASAKI T. , OHTSUKA H. , SAKAMOTO M. 
Published: May 2016

AbstractThe hydroxyindolines (I) react with the amide acetal (II) in o‐dichlorobenzene to produce a mixture of the aromatic N,N‐dimethylacetamides (III) and (IV).
ChemInform Abstract: Azo Coupling of 5(6)‐Hydroxybenzimidazole and Its Derivatives.
Authors: KUZNETSOV YU. V. , STOLYAROVA L. G. , LEZINA V. P. , SMIRNOV L. D. 
Published: May 2016

AbstractThe 5‐hydroxybenzimidazoles (I) are coupled with the diazonium salts (II) to give the 4‐arylazobenzimidazoles (III).
ChemInform Abstract: 1,3‐Dipolar Cycloaddition Reactions of 2‐Phenyl‐4‐arylideneoxazol‐5(4H)‐ones with Nitrile Imines. A Reinvestigation of the Regiochemistry of the 1,3‐Dipolar Cycloaddition Reactions of 2‐Phenyl‐4‐arylideneoxazol‐5(4H)‐ones with Nitrile Oxides.
Authors: COUTOULI‐ARGYROPOULOU E. , ARGYROPOULOS N. G. , THESSALONIKEOS E. 
Published: May 2016

AbstractBy this reaction some compounds such as (III) and (VII) are isolated regioselectively.
ChemInform Abstract: A Convenient Synthesis of 2,4′‐Bipyridine.
Authors: SHIAO M.‐J. , TARNG K.‐Y. 
Published: May 2016

AbstractN‐Ethoxycarbonylpyridinium chloride (I) is coupled with the lithiated 2‐alkoxy‐6‐bromopyridines (II) to yield unstable 1,4‐dihydropyridines which are converted into the 2,4'‐bipyridines (III) upon treatment with oxygen.
ChemInform Abstract: The Synthesis and Antibacterial Activities of Quinolones Containing Five‐ and Six‐Membered Heterocyclic Substituents at the 7‐Position.
Authors: COOPER C. S. , KLOCK P. L. , CHU D. T. W. , FERNANDES P. B. 
Published: May 2016

AbstractStarting with o‐fluoroacetophenone (I), the quinolinecarboxylate (VI) is prepared via ring closure of the aniline (IV) with the ethoxymethylenemalonate (V).
ChemInform Abstract: Synthesis and Pharmacological Evaluation of 6,8‐Diaryl‐1,2,4‐triazolo‐(4,3‐b)‐ and ‐1,2,3,4‐tetrazolo(1,5‐b)pyridazines.
Authors: RUBAT C. , COUDERT P. , COUQUELET J. M. , TRONCHE P. , BASTIDE J. , BASTIDE P. 
Published: May 2016

AbstractReaction of the chloropyridazines (I) with the azide (II) and the hydrazinecarboxylate (IV) gives the tetrazolo‐ (III) and the triazolopyridazines (V) respectively.
ChemInform Abstract: A Novel Reaction of Thiirane Cation Radicals in Solution: The Formation of 5,6‐Diphenyl‐1,2,3,4‐tetrathianes Through Trisulfurated Thiirane Cation Radical Intermediates.
Authors: KAMATA M. , MURAYAMA K. , SUZUKI T. , MIYASHI T. 
Published: May 2016

AbstractTreatment of the 2,3‐diphenylthiiranes (I) with the radical cation salt tris(p‐bromophenyl)aminium hexachloroantimonate in dichloromethane produces the diphenyltetrathianes (II) and (III), together with the stilbenes (IV) and (V) and sulfur (VI).
ChemInform Abstract: Synthesis and Metal‐Binding Properties of Polybipyridine Ligands Derived from Acyclic and Macrocyclic Polyamines.
Authors: ZIESSEL R. , LEHN J.‐M. 
Published: May 2016

AbstractAs shown for (III), synthetic procedures are developed for the preparation of ligands such as (III)‐(VI) bearing up to six 2,2'‐bipyridine groups attached to acyclic and macrocyclic polyamines.
ChemInform Abstract: Synthetic Methods. Part 33. Versatile Methods of Synthesis of 5 to 8‐Membered Ring N‐Heterocycles via Intramolecular Cycloadditions of Allylamines.
Authors: RAI K. M. L. , HASSNER A. 
Published: May 2016

AbstractThe unsaturated N‐allyl‐N‐nitroalkylsulfonamides (V) and (X), prepared from the sulfonamides (I) and (VII) as outlined in the reaction scheme, are cyclized upon treatment with phenyl isocyanate to give the fused isoxazolines (VI) or (XI).
ChemInform Abstract: Amination Reaction of Allylic Chlorides with Silver Iodide/Lithium N,N‐Disilylamide Mixed Reagents.
Authors: MURAI T. , YAMAMOTO M. , KATO S. 
Published: May 2016

AbstractThe allylic chlorides (I) are coupled with lithium hexamethyldisilazide (II) in the presence of silver iodide to produce the allyl‐N,N‐disilylamines (III).
ChemInform Abstract: P‐H Insertion of Carbenes. Part 3. Structure of the Compounds Obtained by Thermocatalytic Reaction of 2‐Diazo‐1,3‐diphenyl‐1,3‐propanedione with Dimethyl Phosphite ‐ Dimethyl 1,3‐Dioxo‐1,3‐diphenyl‐2‐propylphosphonate and 1,3‐Diphenyl‐1,2,3‐propanetrione (N‐Dimethoxyphosphorylhydrazone).
Authors: KATAEVA O. N. , LITVINOV I. A. , NAUMOV V. A. , POLOZOV A. M. , POLEZHAEVA N. A. 
Published: May 2016

AbstractThe diazodiketone (I) reacts with excess dimethyl phosphite (II) in the presence of cupric sulfate to give predominantly the oxopropanoate (III), together with dibenzoylmethane (IV), the phosphonate (V), and the dimethoxyphosphorylhydrazone (VI).