bluuebunny/crossref_metadata_2025_split huggingface dataset:
ChemInform Abstract: Isotope Effects in Arene C‐H Bond Activation by ((C5Me5)Rh(PMe3)).
Authors: JONES W. D. , FEHER F. J. 
Published: May 2016

AbstractThe activation of arene C‐H bonds by (C5Me5)Rh(PMe3) is definitely found to proceed through an intermediate complex, described by the formulation [(C5H5)Rh(PMe3)‐(n2‐ C6H6)] on the basis of the difference in isotope effects observed during the activation of 1,3,5‐C6H3D3 vs. a 1 :1 mixture of C6H6 / C6D6.
ChemInform Abstract: An Approach to the Total Synthesis of Ribasine Alkaloids.
Authors: ALONSO R. , CASTEDO L. , DOMINGUEZ D. 
Published: May 2016

AbstractThe condensation of 2‐bromomethyl benzoyl bromide (I) and the optically active indanyl amine (II) to the amide (III) is followed by PCC‐oxidation to the ketone (IV).
ChemInform Abstract: Electrodeposition Kinetics for Tin, Lead, and Tin‐Lead Fluoborate Plating Solutions.
Authors: TAM T. M. 
Published: May 2016

AbstractThe results of stripping voltammetry indicate, that the rate of Sn, Pb, or Sn‐Pb alloy deposition on a Pt‐rotating disc electrode depends on the concentration of metal ions in solution on the rotational speed, and on the temp. of the plating bath.The effect of peptone addition on the reaction rate has also been determined.
ChemInform Abstract: Electrochemical Oxidation of the Dithiophosphate Complexes η‐Cp*Fe(CO)2(η1‐SP(S)(OR)2), (Cp*: η‐C5H5, η‐C5H4Me, η‐C5Me5 ; OR: OEt, OiPr).
Authors: MORAN M. , CUADRADO I. , LOSADA J. 
Published: May 2016

AbstractThe oxidation of the title Complexes (I) has been investigated in CH2Cl2 and MeCN using cyclic voltammetry and controlled potential electrolysis.
ChemInform Abstract: Free Radical Addition of N‐Bromoglutarimides and N‐Bromophthalimide to Alkenes.
Authors: LUENING U. + , MCBAIN D. S. , SKELL P. S. 
Published: May 2016

AbstractDas N‐Bromglutarimid (I) addiert sich unter Photoinitiierung in einer Radikalkettenreaktion an die Olefine (II) unter Bildung von (III).
ChemInform Abstract: Intramolecular [2 + 2] Cycloaddition Reactions of Ketene and Carbonyl Groups. A New Synthesis of Benzofurans.
Authors: BRADY W. T. , GIANG Y. F. 
Published: May 2016

AbstractDie (o‐Carbonylphenoxy)‐essigsäurechloride (I) werden durch Behandlung mit Triethylamin unter CO2‐Abspaltung in die Benzo‐ furane (IV) übergeführt.
ChemInform Abstract: Dialkylation of Diesters.
Authors: WEAGLEY R. J. , GIBSON H. W. 
Published: May 2016

AbstractDimethyl and diethyl 2,2,4,4‐tetramethylglutarates (III) and (VI) are prepared by methylation of 2,2‐dimethyl‐ and 2,4‐dimethylglutaric esters (I) and (IV) in a two‐step procedure.
ChemInform Abstract: Regioselective Conversion of Allylic Alcohols to 1‐Propenes via Organoiron Complexes.
Authors: ARAKI S. , HATANO M. , BUTSUGAN Y. 
Published: May 2016

AbstractDie aus den Allylalkoholen (I) erhaltenen Phosphate (II) werden über die Allyl‐Eisen‐Komplexe (IV) in die kationischen n‐Komplexe (V) übergeführt, die mit Natriumiodid zu den endständigen Olefinen (VI) abgebaut werden.
ChemInform Abstract: 3‐Nitropropanal and 3‐Nitropropanol: Preparation of the Parent Compounds and Derivatives.
Authors: OEHRLEIN R. + , SCHWAB W. , EHRLER R. , JAEGER V. + 
Published: May 2016

AbstractThe 1,4‐addition of nitric acid to acrolein (I) yields 3‐nitropropanal (II), which is converted to the acetals (III) or to the ethers (V) via 3‐nitropropanol (IV).
ChemInform Abstract: An Improved Synthesis of 2,7‐Dihydroxytropone (3‐Hydroxytropolone).
Authors: TAKESHITA H. , MORI A. , KUSABA T. 
Published: May 2016

AbstractThe title compound (IV) is prepared from 2‐methoxytropone (I): bromination affords 2‐bromo‐7‐methoxytropone (II); reaction of (II) with acetyl trifluoroacetate yields the diacetoxytropone (III), which is hydrolyzed to give the dihydroxytropone (IV).
ChemInform Abstract: Enamines. Part 44. 2‐Acyl‐1,1‐diamino‐ethenes. A New Source of Methylketones, β‐Keto Amides and β‐Keto Esters.
Authors: ARMATI A. , DE RUGGIERI P. , ROSSI E. , STRADI R. 
Published: May 2016

AbstractThe 2‐acyl‐ l , l ‐diaminoethenes (III) are prepared by acylation of the 1,1‐diaminoethenes (I) with the acid chlorides (II).
ChemInform Abstract: Friedel‐Crafts Acylation of Toluene and p‐Xylene with Carboxylic Acids Catalyzed by Zeolites.
Authors: CHICHE B. , FINIELS A. , GAUTHIER C. , GENESTE P. , GRAILLE J. , PIOCH D. 
Published: May 2016

AbstractDer mit Ce3+‐Ionen ausgetauschte Zeolith (III) wird als Katalysator für die Acylierung von Toluol (I) mit den Carbonsäuren (II) verwendet.
ChemInform Abstract: Induced Asymmetric Polymerisation of Optically Active Vinyl Sulphoxide.
Authors: TODA F. , MORI K. 
Published: May 2016

AbstractThe racemates (Ia) and (IIa) are resolved into the antipodes (Ib) and (Ic) or (IIb) and (IIc) by complexing with the chiral dihydroxy‐dinaphthyl (III).
ChemInform Abstract: Simple and Condensed β‐Lactams. Part 7. Side Chain Extensions of Some Azetidin‐ 2‐one Derivatives, and the Formation of Melillo′s Lactone, a Strategic Intermediate in the Total Synthesis of Thienamycin, from 3‐Acetyl‐1‐benzyl‐4‐cyanomethylazetidin‐2‐one.
Authors: FETTER J. , LEMPERT K. , KAJTAR‐PEREDY M. , SIMIG G. , HORNYAK G. 
Published: May 2016

AbstractThe racemic acids (I) are converted to the diazo esters (III) by treatment of their chlorides with ethyl diazoacetate (II).
ChemInform Abstract: Electrochemical Studies of β‐Lactams. Part 2. Electrosynthesis of β‐Lactams via Bond Formation between C‐3 and C‐4.
Authors: CARELLI I. , INESI A. , CARELLI V. , CASADEI M. A. , LIBERATORE F. , MICHELETTI MORACCI F. 
Published: May 2016

AbstractThe haloacetamides (III), readily available from the acid chlorides (I) and the amines (II), are cyclized in the presence of the electroreductively generated anion of Substrate (IV) to produce the β‐lactam (V).
ChemInform Abstract: General Synthetic Route to γ‐Butyrolactones via Stereoselective Radical Cyclization by Organotin Species.
Authors: UENO Y. , MORIYA O. , CHINO K. , WATANABE M. , OKAWARA M. 
Published: May 2016

AbstractThe stereoselective radical Cyclization of the bromo acetals (I) [obtained by alkoxy‐bromination of the corresponding vinyl ethers and allylic alcohols with NBS in 60‐92% yield] to give the tetrahydrofurans (II), (IV), (VI) or (VIII) is carried out by three methods A), B) or D) using Bu3SnH, Bu3SnCl/ NaBH4 or the cross‐linked polymeric tin compound PTC [obtained by copolymerisation of styrene, divinylbenzene and (dibutylchlorostannyl)propylmethacrylate].
ChemInform Abstract: Chloromethyl Trimethylsilylmethyl Sulphide as a Patent Thiocarbonyl Ylide Synthon.
Authors: HOSOMI A. , MATSUYAMA Y. , SAKURAI H. 
Published: May 2016

AbstractTrimethylsilyl methylmercaptane (I) reacts with 1,3,5‐trioxane (II) and HCl to yield the chloromethyl sulphide (III).
ChemInform Abstract: Synthesis and Investigation of 1‐Vinyl‐3,5‐dichloro‐l,2,4‐triazoles.
Authors: STOTSKII A. A. , FOMINA V. V. , LEBEDEVA N. P. , KLASEK A. 
Published: May 2016

Abstract3,5‐Dichlortriazol (I) wird unter Quecksilberacetat‐Katalyse mit Vinylacetat (II) zur im Titel genannten Verbindung (III) umgesetzt.
ChemInform Abstract: An Easy Conversion of 2H‐Chromenes into Coumarins. An Entry to 3‐Formyl Coumarins.
Authors: RENE L. , LEFEBVRE A. , AUZOU G. 
Published: May 2016

AbstractHydrolysis of 3‐cyano‐2‐morpholino‐2H‐chromenes (I) produces the 3‐formyl coumarins (III) via the intermediates (II).
ChemInform Abstract: Regioselectivity in the Reaction of Nitroquinoxaline‐N‐oxides with Phosphoryl Chloride.
Authors: NASIELSKI‐HINKENS R. , VANDE VYVER E. , NASIELSKI J. 
Published: May 2016

AbstractThe quinoxalines (I) are transformed into their N‐oxides (II) and (III) by MCPBA; the nitro group orients the oxygen atom preferentially to the nitrogen atom N‐1, but the N‐4:N‐l selectivity is diminished in the methylated derivatives (IIb), (IIc)/(IIIb).
ChemInform Abstract: Bromination of 2,3‐Dihydro‐6‐(hydroxyphenyl)‐1,4‐diazepinium Salts.
Authors: LLOYD D. , REICHARDT C. , STRUTHERS M. 
Published: May 2016

AbstractThe diazepinium salts (I) are readily mono‐ [→ (IIIa), (IIIb)] and di‐brominated [→ (IIIc), (IIId)] at the meta‐position of the phenyl substituent whereas the monobromination products (IVa), (IVb) or the di‐bromination products (IVc), (IVd) are obtained from the salts (II).
ChemInform Abstract: Alkylation of 2,3‐Dihydro‐1,4‐diazepinium Salts.
Authors: CALSY A. , KING J. , LLOYD D. , REICHARDT C. , STRUTHERS M. 
Published: May 2016

AbstractThe N‐unsubstituted salts (III) are first N‐methylated to give (I) and then O‐methylated to give (IV).
ChemInform Abstract: Synthesis and Identification of Vicinal Azaoxo‐2(3)‐homodiamantanes.
Authors: TINANT B. , DECLERCQ J. P. , VAN MEERSSCHE M. , JANKO J. , BURKHARD J. , HAJEK M. , VODICKA L. 
Published: May 2016

AbstractThe Schmidt reaction of diamantanone (I) using various acids [cf. methods (A)‐(D)] affording the products (II)‐(IV) is studied in detail.
ChemInform Abstract: Reaction of Bis‐dithiophosphonic Acids with Nitriles.
Authors: KUTYREV G. A. , KOROLEV O. S. , YAKOVA E. G. , CHERKASOV R. A. , PUDOVIK A. N. 
Published: May 2016

AbstractDie Bis‐dithiophosphonsäuren (I) reagieren mit Acetonitril (IIa) oder Benzonitril (IIb) über die Zwischenstufen (III) zu den Thioamiden (IV) und den cyclischen Trithiopyrophosphonaten (V).
ChemInform Abstract: Reduction of a Dimeric Tantalum(III) Compound in Acetonitrile Solution by Pulse Radiolysis.
Authors: KOULKES‐PUJO A.‐M. , LE MOTAIS B. , HUBERT‐PFALZGRAF L. G. 
Published: May 2016

AbstractThe reduction of the Compound (I), having a metal ‐ metal double bond, by pulse radiolysis in dry oxygen‐free acetonitrile occurs by CH3CN‐ which leads to a transient species assigned to a tantalum dimer in a 2.5 oxidation state.
ChemInform Abstract: Preparation of mer‐[Mo(N2)3(PPr2Ph)3] from trans‐[Mo(N2)2(PPr2Ph)4]; Its X‐Ray Crystal Structure, Spectroscopic Properties, and Protonation to Give Ammonia.
Authors: ANDERSON S. N. , HUGHES D. L. , RICHARDS R. L. 
Published: May 2016

AbstractThe trans‐compound (III), prepared as shown, reacts with N2 to give the mer‐complex (IV) in high yield.
ChemInform Abstract: Mixed Tri‐ and Bi‐dentate Schiff‐base Complexes of Technetium(V) and Rhenium(V).
Authors: MAZZI U. , REFOSCO F. , TISATO F. , BANDOLI G. , NICOLINI M. 
Published: May 2016

AbstractThe six‐coordinate, diamagnetic Tc(V) and Re(V) complexes (II) are prepared as shown, and characterized by IR, 1H NMR, and MS data as well as X‐ray structural analysis of the quinolinolato‐Tc title complex (space group P21/n, Z=4) (yields not given).
ChemInform Abstract: Preparation, Spectroscopic Characterization and Anion Binding Studies of a Mononuclear Co(II) Derivative of Carcinus maenas Hemocyanin.
Authors: SALVATO B. , BELTRAMINI M. , PIAZZESI A. , ALVIGGI M. , RICCHELLI F. , MAGLIOZZO R. S. , PEISACH J. 
Published: May 2016

AbstractThe binuclear copper in the active site of the title protein is substituted with one EDTA‐resistant Co(II) per 75000 M, by reconstitution of apo‐hemocyanin solutions.
ChemInform Abstract: Preparation of 1,4,8,11‐Tetrakis(2‐pyridylmethyl)‐1,4,8,l1‐tetra‐azacyclotetradecane (L1) and a Binuclear Complex with Copper(II). X‐Ray Structure of (Cu2L1Br2)(ClO4)2.
Authors: ALCOCK N. W. , BALAKRISHNAN K. P. , MOORE P. 
Published: May 2016

AbstractThe new potentially octadentate title ligand (II) prepared as shown reacts with [Cu(DMSO)6][ClO4]2/ KBr to give the binuclear complex (III).
ChemInform Abstract: Reduction ‐ Oxidation Properties of Organotransition‐metal Complexes. Part 24. The Oxidative Dimerisation of [Ru(CO)2L(η4‐cot)] (L: CO or PPh3, cot: cyclooctatetraene).
Authors: CONNELLY N. G. , GRAHAM P. G. , SHERIDAN J. B. 
Published: May 2016

AbstractElectrochemical studies show that the title compounds (II), prepared as shown, undergo a diffusion‐controlled, but irreversible, one‐electron oxidation at a Pt‐bead electrode in CH2Cl2.
ChemInform Abstract: Synthesis of ortho‐Metalated Palladium(II) and Platinum(II) Complexes of Phosphonium, Arsonium and Sulfonium Ylids.
Authors: TEAGLE J. A. , BURMEISTER J. L. 
Published: May 2016

AbstractThe reactions of PdCl2 with ylids of the type (I) produce the dinuclear C‐bound, ortho‐metalated complexes (II), analogues to the corresponding Pt complex (E: P, n = 3) previously reported.
ChemInform Abstract: A General Synthetic Route for Platinum Sulphur Dioxide Cluster Compounds and the X‐Ray Structural Characterisation of Di‐μ‐carbonyl‐carbonyl‐tri(μ‐sulphur dioxide)‐tetrakis(triphenylphosphine)pentaplatinum ‐ Dichloromethane ‐ Propan‐2‐ol (1/2/1), [Pt5(CO)(μ‐CO)2(μ‐SO2)3(PPh3)4] . 2 CH2Cl2 . Me2CH(OH).
Authors: BRIANT C. E. , EVANS D. G. , MINGOS D. M. P. 
Published: May 2016

AbstractThe SO2‐bridged trinuclear Pt complexes (II) and (V) are prepared by CO Substitution reactions of (Ia), (III), or (IV) with SO2 as shown.
ChemInform Abstract: Studies on the Synthesis of Aphidicolin. The Diels‐Alder Route to Spirocyclic Intermediates.
Authors: BELL V. L. , HOLMES A. B. , HSU S.‐Y. , MOCK G. A. , RAPHAEL R. A. 
Published: May 2016

AbstractThe isopropylidene cyclohexylidenemalonates (I) undergo cycloaddition with the butadienes (II) to give the spiro adducts (III).
ChemInform Abstract: Iridoids. Part 21. Synthesis of [13C]Secologanin.
Authors: TIETZE L. F. , HENKE S. , REMBERG G. 
Published: May 2016

AbstractThe title compound (VId) required for biogenesis studies is synthesized Starting from natural secologanin (Ia) which is transformed to the aldehyde (III) via the intermediates shown in the scheme.
ChemInform Abstract: Retinoids. Part 7. Synthesis of Acetylenic Retinoids 9,10‐Didehydro‐19‐norretinal and 9,10,11,12‐Tetradehydro‐19‐norretinal.
Authors: KRAUSE N. , HOPF H. , ERNST L. 
Published: May 2016

AbstractThe alkyne (I), which in turn is available from β‐ionone, serves as Starting material for the syntheses of the desired norretinals (V) (yellow) and (IX) (dark red).
ChemInform Abstract: The Preparation of Thiathromboxane Analogues and a Formal Total Synthesis of Dithiathromboxane A2 Based on Conjugate Addition Reactions of Thiin‐4‐ones.
Authors: CASY G. , LANE S. , TAYLOR R. J. K. 
Published: May 2016

AbstractThe thiinone (I) undergoes conjugate addition with a range of organocopper reagents OCR, the most efficient being copper‐catalysed Grignard reagents.
ChemInform Abstract: Growth and Physical Properties of LPCVD Polycrystalline SiOx Films.
Authors: WIDMER A. E. , HARBEKE G. , KRAUSBAUER L. , STEIGMEIER E. F. 
Published: May 2016

AbstractUndoped and in situ P‐doped LPCVD films of SiOx with 0 < x < 0.92 (emphasis on x 0.1) have been deposited at 580‐850°C. The films have been characterized as‐grown and after annealing at 900, 950, or 1000°C. It is shown, that this method of amorphous deposition followed by thermal crystallization results in high quality films with respect to surface roughness.
ChemInform Abstract: Aluminum Siting in Mordenite and Dealumination Mechanism.
Authors: BODART P. , NAGY J. B. , DEBRAS G. , GABELICA Z. , JACOBS P. A. 
Published: May 2016

AbstractThe dealumination of mordenite, Na8Al8Si40O96 · n H2O, by acidification (HCl, HNO3) and by SiCl4 and steaming treatments has been investigated by high‐resolution solid state 29Si and 27Al MAS NMR.
ChemInform Abstract: Effects of Sulphur Ion Implantation on the Electrochemical Behaviour of Two Stainless Steels in Sulphuric Medium.
Authors: NADER‐ROUX J. , DE BECDELIEVRE A. M. , GAILLARD F. , ROUX R. , DE BECDELIEVRE J. 
Published: May 2016

AbstractThe I‐ E curves of sulphur implanted steels (AISI 304 Land AISI 32l) reveal a significant corrosion peak (a‐peak) recovering widely the active peak of S‐free samples.
ChemInform Abstract: Probing Electrochemical Interfaces with X‐Ray Standing Waves.
Authors: BEDZYK M. J. , BILDERBACK D. , WHITE J. , ABRUNA H. D. , BOMMARITO M. G. 
Published: May 2016

AbstractA Pt/ Clayered synthetic microstructure with a d spacing of 56 Å and with Pt as the outermost layer has been used for the investigation of the Cu electrodeposition on an iodide‐covered Pt surface with the X‐ray standing wave technique which is able to detect changes in the distance between the iodide layer and the Pt surface.
ChemInform Abstract: Direct Evidence for Spillover of Hydrogen from Ruthenium to Copper in Supported Cu‐Ru/SiO2 Catalysts: A Study by NMR of Chemisorbed Hydrogen.
Authors: KING T. S. , WU X. , GERSTEIN B. C. 
Published: May 2016

AbstractIt is demonstrated that hydrogen is dissociatively chemisorbed on Cu‐ Ru bimetallic catalysts supported on SiO2 and populates sites on both Cu and Ru.
ChemInform Abstract: Studies of Reactions of Importance in the Stratosphere. Part 6. Temperature Dependence of the Reactions O + NO2 ‐→ NO + O2 and O + ClO ‐→ Cl + O2.
Authors: ONGSTAD A. P. , BIRKS J. W. 
Published: May 2016

AbstractThe reaction rates of the title reactions have been measured in the temp. range 220‐387 K at a total pressure of 2.3 torr under pseudo‐first‐order conditions with either ClO or NO2 in large excess.
ChemInform Abstract: Hydrogen Peroxide Decomposition on a Two‐Component NiO‐Fe2O3 Catalyst.
Authors: MUCKA V. 
Published: May 2016

AbstractThe catalytic properties of the NiO‐ Fe2O3 catalyst are found to depend on the preparation procedure and on the composition of the catalyst; the phase composition , of the contact catalyst is not decisive for the catalytic activity.
ChemInform Abstract: Structure‐Magnetism Correlation in Dimeric Copper(II) Carboxylates: Crystal and Molecular Structure of Tetra‐μ‐(propanoato‐O,O′)‐bis[aquacopper(II)].
Authors: BATTAGLIA L. P. , BONAMARTINI CORRADI A. , MENABUE L. 
Published: May 2016

AbstractThe magnetic, IR, electronic, ESR spectroscopic and thermogravimetric properties of the hydrated and anhydrous copper(II) propanoate and‐ butanoate are reinvestigated and rediscussed in the light of the crystal and molecular structure determination for the title complex (I) (space group P21/c, Z=4).
ChemInform Abstract: Design and Synthesis of a New Ferroelectric Liquid Crystal Family.
Authors: WALBA D. M. , SLATER S. C. , THURMES W. N. , CLARK N. A. , HANDSCHY M. A. , SUPON F. 
Published: May 2016

AbstractExamples (VII) of the title class or analogues obtained with (Vb) are synthesized in accordance with the scheme.
ChemInform Abstract: Variable‐Temperature Single‐Crystal ESR Study and Crystal Structure of [Cu(C6H15N3)2][Cu(CN)3] . 2 H2O at 110 and 293 K. Static and Dynamic Jahn‐Teller Distortions in the CuN6 Polyhedron,
Authors: CHAUDHURI P. , ODER K. , WIEGHARDT K. , WEISS J. , REEDIJK J. , HINRICHS W. , WOOD J. , OZAROWSKI A. , STRATEMAIER H. , REINEN D. 
Published: May 2016

AbstractThe title complex is precipitated after addition of a small amount of KCN to an aqueous solution of CuCl2 ‐ 2 H2O and the triaza ligand in equimolar amounts at room temperature.
ChemInform Abstract: Counterligand Dependence of Charge Distribution in Copper‐Quinone Complexes.
Authors: BUCHANAN R. M. , WILSON‐BLUMENBERG C. , TRAPP C. , LARSEN S. K. , GREENE D. L. , PIERPONT C. G. 
Published: May 2016

AbstractSamples prepared in a hydrated medium and recrystallized from CH2Cl2 form the monomeric compound (I) with a four‐coordinate square planar Cu ion.
ChemInform Abstract: Electrochemical Evidence for a Three‐Center, Three‐Electron Agostic Interaction in Tungstenocene Dialkyl Cations and Estimation of the Magnitude of the Interaction.
Authors: ASARO M. F. , COOPER S. R. , COOPER N. J. 
Published: May 2016

AbstractCyclic voltammograms in acetonitrile of the tungstenocene compounds (I)‐(III) exhibit a reversible one‐electron oxidation between ‐450 and + 125 mV 19 vs. SCE.
ChemInform Abstract: Free‐Radical Chemistry. Part 7. Additions to Hexafluoro‐2‐butyne.
Authors: CHAMBERS R. D. , JONES C. G. P. , SILVESTER M. J. 
Published: May 2016

AbstractThe radical‐induced reaction of the aldehyde (I) or the alcohols (VI) with hexafluoro‐2‐butyne (II) yields the products (III)‐(V), (VII), and (VIII) as shown in the reaction scheme.
ChemInform Abstract: Cyclic Derivatives from Alkoxybenzohydrazides. Synthesis of Pyrazoles, Pyrroles and Triazol‐5‐ones of Pharmaceutical Interest.
Authors: MAZZONE G. , PUGLISI G. , CORSARO A. , PANICO A. , BONINA F. , AMICO‐ROXAS M. , CARUSO A. , TROMBADORE S. 
Published: May 2016

AbstractTitle compounds of type (III), (V) and (VIII) are synthesized as shown in the scheme and screened for their biological activity.
ChemInform Abstract: Polycyclic Hydroxyquinones. Part 24. Diels‐Alder Reactions of 5‐Amino‐8‐hydroxy‐1,4‐naphthoquinone.
Authors: FARINA F. , PAREDES M. C. , STEFANI V. 
Published: May 2016

AbstractThe Diels‐Alder reaction of quinones (I) with (IV) and (VI) yields the adducts (V) and (VII), resp., giving (II) and (III) on mild alkaline air oxidation [due to partial hydrolysis under these conditions, (IIc)‐(IIe) and (IIIc)‐(IIIe) are prepared by derivatization of (IIa) and (IIIa) using standard procedures].
ChemInform Abstract: Synthesis and Biological Activity of Carboxylic Acids with Sulfur Containing Groups in β‐Positions.
Authors: ZNAMENSKII V. V. , EFREMOV A. D. , BYSTROVA V. M. , VASIL'EVA T. P. , KIL'DISHEVA O. V. 
Published: May 2016

AbstractDie Ringöffnung der cyclischen Sulfinsäureanhydride (I) mit Nucleophilen führt zu den β‐Sulfinoamiden (III) und (IV), dem Ester (V) oder zu den Sulfinocarbonsäure‐Salzen (VI).
ChemInform Abstract: Novel Heterocycles: Tetrazinodi(heteroarenes), Synthesis and Structure.
Authors: EICHENBERGER T. , BALLI H. 
Published: May 2016

AbstractThe title compounds (IV), (VII), (X), (XIII), (XVI) and (XVII) are obtained in a two‐step Synthesis by N‐aminating heterocyclic compounds such as (I), (V), (VIII), (XI) substituted with a leaving group and by treating the products with an organic or inorganic base.
ChemInform Abstract: Liquid‐Crystalline Solvents as Mechanistic Probes. Part 21. Control of Norrish II 1,4‐Biradical Reactivity by the Phase and Molecular Dimensions of an Ordered Solvent.
Authors: ZIMMERMANN R. G. , LIU J. H. , WEISS R. G. 
Published: May 2016

AbstractThe biradicals (II) and (III) are generated by irradiation in crystalline‐, smectic B‐like‐, nematic‐, and isotropic‐phase solution of (IX).
ChemInform Abstract: Azo Anions in Synthesis. Part 1. t‐Butylhydrazones as Acyl‐Anion Equivalents.
Authors: BALDWIN J. E. , ADLINGTON R. M. , BOTTARO J. C. , KOLHE J. N. , PERRY M. W. D. , JAIN A. U. 
Published: May 2016

AbstractThe conversion (IIId) ‐ (VIII) exemplifies the use of the title compounds (III) [prepared from (I)] as acyl‐anion equivalents: anions of type (IV) generated from aldehydes (IIId)‐(IIIg) are treated with an electrophile such as (V) to yield (VI); subsequent tautomerization [‐ (VII)] and hydrolysis provides the target compound (VIII).
ChemInform Abstract: Enhanced cis‐Selectivities in Olefination Reactions Employing Ylids with Modified "Stationary Groups".
Authors: SCHAUB B. , JEGANATHAN S. , SCHLOSSER M. 
Published: May 2016

AbstractDie aus den Triarylphosphanen (I) mit den Alkylhalogeniden (II) erhaltenen Phosphoniumsalze (III) liefern mit NaNHg die Ylide (IV).
ChemInform Abstract: Reductive Coupling of α,β‐Unsaturated Ketones. Part 3. (+)‐Pulegone: An Example of Umpolung.
Authors: PONS J.‐M. , SANTELLI M. 
Published: May 2016

Abstract(+)‐Pulegone (I) is reduced yielding the isomeric menthones (II) and (III).
ChemInform Abstract: Excited‐State Rearrangements of 1,3‐ and 1,5‐Dienes in a Radio Frequency Plasma.
Authors: MILLER L. L. , MIZOBUCHI Y. 
Published: May 2016

AbstractThe products obtained by distilling 1,3‐ and 1,5‐dienes through an inductively coupled radio frequency plasma are described.
ChemInform Abstract: Reaction of Tetrafluoroethene Oligomers. Part 5. Some Reactions of Perfluoro[(1‐ethyl‐1‐methylpropyl)(1‐methylpropyl)]keten.
Authors: COE P. L. , SELLARS A. , TATLOW J. C. , FIELDING H. C. , WHITTAKER G. 
Published: May 2016

AbstractReaction of the title keten (IV) with methanol (III) produces an inseparable mixture of theproducts (I) and (II), which can be treated with sodium alkoxide to yield pure (I).
ChemInform Abstract: Methionine as Precursor for the Enantioselective Synthesis of α‐Branched Vinylglycines and of Other Amino Acids.
Authors: WEBER T. , AESCHIMANN R. , MAETZKE T. , SEEBACH D. 
Published: May 2016

AbstractThe title compound (I) is converted to the heterocycles (II) by means of previously described procedures [crystal structure of (IIc): space group P2/n with Z=4].