bluuebunny/crossref_metadata_2025 huggingface dataset:
ChemInform Abstract: 1,4‐Diaza‐1,3‐butadiene Seven‐Coordinate Complexes of Molybdenum(II) and Tungsten(II).
Authors: BAKER P. K. , BARFIELD J. , VAN KAMPEN M.
Published: May 2016

The seven‐coordinate complexes (I) react with an equimolar quantity of diazabutadienes (II) to afford the diazabutadiene complexes (III) by the successive substitution of two MeCN ligands.
ChemInform Abstract: Bis(cyclooctane‐1,5‐diyl‐dipyrazol‐1‐yl‐borato)cobalt ‐ a Polypyrazolylborate Complex with Two Agostic Hydrogen Bridges.
Authors: TROFIMENKO S. , CALABRESE J. C. , THOMPSON J. S.
Published: May 2016

The K‐salt (IV) of the new polypyrazolylborate ligand reacts with Co(NO3)2 (V) to yield the title complex (VI) (no yield given).
ChemInform Abstract: Highly Diastereoselective Synthesis of (3R,4R)‐ and (3R,4S)‐β,γ‐Diamino Acids from D‐Phenylalanine.
Authors: KANO S. , YOKOMATSU T. , IWASAWA H. , SHIBUYA S.
Published: May 2016

Consecutive reaction of the N‐Boc‐2‐amino‐3‐hydroxy‐1‐phenylalkanes (I) with methanesulfonyl chloride (II) and sodium azide (IV) leads to the formation of the azides (V) via SN2 reaction with complete inversion of the configuration at C‐3. Oxidative degradation of (V) with sodium metaperiodate in the presence of ruthenium trichloride yields the β‐amino γ‐azido acids (VI) which are hydrogenated to give the diaminocarboxylic acids (VII).
ChemInform Abstract: A Combined Chemical‐Enzymatic Synthesis of 3‐Deoxy‐D‐arabino‐heptulosonic Acid 7‐Phosphate.
Authors: TURNER N. J. , WHITESIDES G. M.
Published: May 2016

The title compound (V) is an important intermediate in the shikimic acid pathway to aromatic amino acids.
ChemInform Abstract: Nucleic Acid‐Related Compounds. Part 54. Fluorination at C5′ of Nucleosides. Synthesis of the New Class of 5′‐Fluoro‐5′‐S‐aryl (Alkyl) Thionucleosides from Adenosine.
Authors: ROBINS M. J. , WNUK S. F.
Published: May 2016

The thioadenosine S‐oxides (V), generated from adenosine (I), are treated with diethylaminosulfur trifluoride (DAST) to produce mixtures of the diastereomeric α‐fluoro sulfides (VI).
ChemInform Abstract: Structure and Magnetic Properties of Some Nd‐Fe‐B Alloys,
Authors: CHUANG Y. C. , WU C. H. , CHANG Y. C. , KAO L. , DE BOER F. R.
Published: May 2016

Nd15Fe77B8, Nd15Fe80B5, Nd2Fe12.5B, Nd2Fe14B, Nd3Fe20B, and Nd3Fe21B are investigated.
ChemInform Abstract: Structural and Mechanical Property Changes in Toughened Magnesia‐Partially‐Stabilized Zirconia at Low Temperatures.
Authors: MARSHALL D. B. , JAMES M. R. , PORTER J. R.
Published: May 2016

The mechanical properties of high‐toughness 9 mol% MgO‐partially‐stabilized zirconia (Mg‐PSZ) are dramatically altered by a single cooling cycle between room temp. and ‐196 °C. The fracture toughness is reduced from ∼ 13 to ∼ 6 MPa·m1/2, the tensile stress‐strain response becomes linear up to failure and the R‐curve characteristic is lost.
ChemInform Abstract: Influence of Fracture Toughness on the Wear Resistance of Yttria‐Doped Zirconium Oxide.
Authors: FISCHER T. E. , ANDERSON M. P. , JAHANMIR S.
Published: May 2016

Y2O3‐doped ZrO2 samples are prepared in the fully tetragonal (3 mol% Y2O3), mixed tetragonal and cubic (4 mol% Y2O3), and the fully cubic (6 mol% Y2O3) structures.
ChemInform Abstract: Spin Trapping of Radicals Formed in the Photochemical Reactions Involving Hydrogen Peroxide, Methanol or Dimethyl Sulfoxide Using 1(2),3‐Dimethyl‐4‐nitrosopyrazol‐5‐ol. Evidence for Charge Transfer Between Nitroxide Radicals and Dimethyl Sulfoxide.
Authors: LAGERCRANTZ C.
Published: May 2016

The title compound dissolved in MeOH or DMSO together with a small amount of H2O2 gives rise to nitroxide radicals with the structure RN·(O)H (R: the pyrazole ring system).
ChemInform Abstract: Structural Chemistry and Magnetism of Dicyclopentadienidehalides of Lanthanoids. Part 6. Ytterbiumdicyclopentadienidechloride and ‐bromide, (Yb(C5H5)2Cl)2 and (Yb(C5H5)2Br)2.
Authors: LUEKEN H. , SCHMITZ J. , LAMBERTS W. , HANNIBAL P. , HANDRICK K.
Published: May 2016

The crystal structures of the title dimers (I) are determined.
ChemInform Abstract: A Mechanistic Insight Leads to a Greatly Improved Osmium‐Catalyzed Asymmetric Dihydroxylation Process.
Authors: WAI J. S. M. , MARKO I. , SVENDSEN J. S. , FINN M. G. , JACOBSEN E. N. , SHARPLESS K. B.
Published: May 2016

The recently reported asym.
ChemInform Abstract: Heterocyclization of 1‐Acetoxy‐4‐halo‐Substituted 2‐Butenes in the Presence of Alkali.
Authors: GEVORKYAN A. A. , KAZARYAN P. I. , AVAKYAN S. V.
Published: May 2016

Treatment of α‐acetoxy‐ω‐bromo‐trans‐butenes such as (I) or (V) with alkali gives the oxiranes (III) and (VI), whereas the dihydrofuran (IV) is obtained from the cis‐butene (II).
ChemInform Abstract: Oxidation of Allene Episulfide. Selective Sulfur Oxidation and Novel Isomerization of Resulting S‐Oxide.
Authors: TOKITOH N. , ITAMI A. , ANDO W.
Published: May 2016

The oxidation of the allene episulfides (I) is investigated under various conditions.
ChemInform Abstract: Aromatic Sulfonation. Part 107. Reactions of the Dihydroxybenzenes and Their Methyl Ethers with Sulfur Trioxide. The Effect of Initial Sulfation on the Sulfonation Product Distribution.
Authors: CERFONTAIN H. , COENJAARTS N. J. , KOEBERG‐TELDER A.
Published: May 2016

All the nine possible dihydroxybenzenes and their mono‐ and dimethyl ethers (I), (II), (VII), (X) are sulfurated resp. sulfonated with SO3 in MeNO2.
ChemInform Abstract: Synthesis of α‐Haloalkyl Esters from α‐Arylthioalkyl Esters.
Authors: BENNECHE T. , STRANDE P. , WIGGEN U.
Published: May 2016

The monohaloalkyl esters (IV), (VI), (VIII), (XI) are synthesized under mild conditions in high yields by selective cleavage of the C‐S bond in α‐arylthioalkyl esters (III) or (X) using SO2Cl2 or Br2.
ChemInform Abstract: Steric and Electrochemical Effects on Rates of Electron Transfer and SN2 Reactions of 9‐(Dialkylamino)fluorenide Ions with Alkyl Halides.
Authors: BORDWELL F. G. , HARRELSON J. A. JUN.
Published: May 2016

Rate ratios for reactions of (IIa) vs.
ChemInform Abstract: Synthesis and Chemical Reactivity of 2‐Chlorohexafluorocyclopentenylcopper Reagent.
Authors: CHOI S.‐K. , JEONG Y.‐T.
Published: May 2016

Metalation of the 1‐chloro‐2‐iodohexafluorocyclopentene (I) with zinc (II) followed by metathesis reaction with Cu(I) bromide (IV) yields the relatively stable cyclopentenylcopper compound (V) mentioned in the title.
ChemInform Abstract: A Mild Method for the Formation of Tosylhydrazone Derivatives from Keto Esters.
Authors: VINCZER P. , NOVAK L. , SZANTAY C.
Published: May 2016

The ketones (I) and the ethyl pyruvate (IV) react with the tosylhydrazine (II) in the presence of neutral or basic alumina to give the tosyl hydrazones (III) or (V).
ChemInform Abstract: Regiospecific Conversion of Alkenyl Sulfides to α‐Sulfenylated Carbonyl Compounds by Oxygenation in the Presence of Thiophenol.
Authors: YOSHIDA J. , NAKATANI S. , ISOE S.
Published: May 2016

Treatment of the alkenyl phenyl sulfides (I) with oxygen and thiophenol (II) gives the α‐phenylthio aldehydes and ketones (III).
ChemInform Abstract: Photochemical Reaction Between Naphthalenecarbonitriles and Dienes.
Authors: ALBINI A. , FASANI E. , GIAVARINI F.
Published: May 2016

Photolytic reaction of 1‐naphthalenecarbonitrile (I) with 2,3‐dimethylbutadiene (II) yields a mixture of the products (III) ‐ (VIII) via (2 + 2)‐ and (4 + 4)cycloaddition processes.
ChemInform Abstract: Base‐Catalyzed Epimerization Behavior and Unusual Reactivity of N‐Substituted Derivatives of 2,5‐Dicarbalkoxypyrrolidine. Preparation of a Novel Mixed Carbamic Carbonic Anhydride by a 4‐(Dimethylamino)pyridine‐Catalyzed Acylation.
Authors: KEMP D. S. , CURRAN T. P.
Published: May 2016

2,5‐Bis(alkoxycarbonyl)pyrrolidines such as (I) undergo base‐catalyzed epimerization, forming a nearly 1:1 mixture of the cis‐ and trans‐isomers.
ChemInform Abstract: Photochemical Synthesis of 4‐Ethoxycarbonyl‐5‐hydroxypyrazoles.
Authors: SPASSOVA M. K. , ZAKHARIEVA R. D.
Published: May 2016

The photochemical decomposition of the diazonium salts formed from the aminopyrazoles (I) and NaNO2 (II) gives rise to the hydroxy derivatives (III).
ChemInform Abstract: Heterocyclic Carbanions. Part 18. Synthesis of 2‐Substituted Imidazoles and Benzimidazoles and of 3‐Substituted Pyrazoles by Lithiation of N‐(Dialkylamino)methyl Heterocycles.
Authors: KATRITZKY A. R. , REWCASTLE G. W. , FAN W.‐Q.
Published: May 2016

Lithiation of the 1‐(aminomethyl)imidazole (IV) or the related benzimidazole (IX), obtained by aminomethylation of the corresponding parent heterocycle, and subsequent quenching with electrophiles, e.g. (V), (VII), or (X), yields the 2‐substituted imidazole derivatives (VI), (VIII), or (XI).
ChemInform Abstract: Antiallergy Agents. Part 1. Substituted 1,8‐Naphthyridin‐2(1H)‐ones as Inhibitors of SRS‐A Release.
Authors: SHERLOCK M. H. , KAMINSKI J. J. , TOM W. C. , LEE J. F. , WONG S.‐C. , KREUTNER W. , BRYANT R. W. , MCPHAIL A. T.
Published: May 2016

Cyclocondensation of the substituted pyridines (I) with caproic acid (II) gives the corresponding 1,8‐naphthyridin‐2(1H)‐ones (III).
ChemInform Abstract: Synthesis and Structure‐Activity Relationships of a New Series of Antiarrhythmic Agents: Monobasic Derivatives of Disobutamide.
Authors: DESAI B. N. , FOWLER K. W. , CHORVAT R. J. , FREDERICK L. G. , HATLEY F. R. , RORIG K. J. , GARTHWAITE S. M.
Published: May 2016

Condensation reaction of the acetonitrile (I) with the chloride (II) gives the nitrile (III) which is transformed into the carboxamide (IV) by hydration and subsequent hydrogenolysis.
ChemInform Abstract: Synthesis of 1,4‐Dioxino(2,3‐b)quinoxaline Derivatives and a Study of Their Fluorescent Properties.
Authors: PHADKE R. C. , RANGNEKAR D. W.
Published: May 2016

The dichloroquinoxalines (II) react with ethylene glycol (III) to give the 1,4‐dioxinoquinoxalines (IV) which are also prepared by reaction of the dihydroxyquinoxalines (I) with 1,2‐dibromoethane (V).
ChemInform Abstract: Novel Photo‐Induced Cyclization of 2‐Alkoxy‐3‐(2‐oxoalkyl)‐1,4‐naphthoquinone.
Authors: MARUYAMA K. , OSUKA A. , NAKAGAWA K. , JINSENJI T. , TABUCHI K.
Published: May 2016

The 1,4‐naphthoquinones (I) are irradiated, forming mixtures of the anellated dioxepins (II) and the naphtholquinone (III).
ChemInform Abstract: Some Perfluoroalkyl‐Substituted Tripnicogens and Their Hydrolysis To Yield Chiral Dipnicogens.
Authors: AVENS L. R. , WOLCOTT R. A. , CRIBBS L. V. , MILLS J. L.
Published: May 2016

The insertion of a perfluoroalkylphosphinidene moiety from (II) or the corresponding cyclopentaphosphine into the pnicogen‐pnicogen bond of tetraalkyldipnicogens appears to be general and gives compounds such as (III).
ChemInform Abstract: Synthesis and Structures of Two Thermally Stable Sodides with the Macrocyclic Complexant Hexamethyl Hexacyclen.
Authors: KUCHENMEISTER M. E. , DYE J. L.
Published: May 2016

The isostructural sodides (I) (space group P212121) are synthesized in a "K‐cell" by using previously reported techniques (no details given).
ChemInform Abstract: Preparation and Spectroscopic Properties of Oxovanadium(IV) and Dioxomolybdenum(VI) Complexes with Tetraaza(14)annulenes Containing Pyridine Rings.
Authors: SAKATA K. , KURODA M. , YANAGIDA S. , HASHIMOTO M.
Published: May 2016

The oxovanadium(IV) and cis‐dioxomolybdenum(VI) complexes (I) and (II) are obtained by reaction of the corresponding macrocycle with V(III) chloride in refluxing DMF or with tetracarbonylbis(piperidine)‐Mo(0) in refluxing DMF/cyclohexanol.
ChemInform Abstract: Synthesis and Reactivity of the First Structurally Characterized Heterobimetallic Complex Containing an Unsupported Bridging Sulfur Atom.
Authors: KOVACS J. A. , BERGMAN R. G.
Published: May 2016

The title complex (IV) is synthesized by introducing propylene sulfide (III) into a mixture of (I) and (II).
ChemInform Abstract: Complexes of Rhenium with Sterically Hindered Thiolate Ligands. Crystal Structure of (Re(SC6H4‐o‐SiMe3)(NC(SC6H4‐o‐SiMe3)CH3)2(PPh3)2), a Complex Exhibiting Coordinated Thiolimidate Groups Formed via Nucleophilic Attack and Reduction by Thiolate of Coordinated Acetonitrile.
Authors: BLOCK E. , KANG H. , OFORI‐OKAI G. , ZUBIETA J.
Published: May 2016

The chemistry of the thiol (I) with some Re precursors is investigated.
ChemInform Abstract: Cu(I) Complexes with Heterocyclic Thiones and Triphenylphosphine as Ligands. The Crystal Structure of (Cu(tzdtH)2(PPh3)2)NO3.
Authors: KARAGIANNIDIS P. , ASLANIDIS P. , PAPASTEFANOU S. , MENTZAFOS D. , HOUNTAS A. , TERZIS A.
Published: May 2016

A variety of heterocyclic thiones such as (II) reacts to give the tetrahedral, diamagnetic complexes (III).
ChemInform Abstract: Intramolecular (4 + 2) Diels‐Alder Cycloaddition Reactions of Phospholes with Vinylphosphines Promoted by Palladium and Platinum.
Authors: RAHN J. A. , HOLT M. S. , GRAY G. A. , ALCOCK N. W. , NELSON J. H.
Published: May 2016

The equimolar reactions of the bis(phosphole) complexes (I) and the bis(vinylphosphine) complexes (II) of Pt(II) and Pd(II) produce dihalo(2‐phosphino‐dimethyl‐7‐R‐7‐phosphabicyclo(2.2.1)hept‐5‐ene)metal(II) complexes of the type (III) via an intramolecular Diels‐Alder (4 + 2) cycloaddition.
ChemInform Abstract: Syntheses of Diacetylenic Derivatives with Mesogenic Group.
Authors: HARDY G. , MILBURN G. W. H. , NYITRAI K. , HORVATH J. , BALAZS G. , VARGA J. , SHAND A. J.
Published: May 2016

The hexadiynediol (I) reacts with the acid chlorides (II) and (IV) to give the diesters (III) and (V).
ChemInform Abstract: Acetalation. Part 7. Some New Aspects of the Isopropylidenation of Galactitol.
Authors: CHITTENDEN G. J. F.
Published: May 2016

In the course of a reinvestigation of the title reaction under modified conditions, the novel acetals (III), (IV) and (VIII) are isolated and characterized on the basis of 1H, 13C NMR and MS data.
ChemInform Abstract: ESR Studies of Monoamine Oxidase B. First Direct Evidence for a Substrate Radical Intermediate.
Authors: YELEKCI K. , LU X. , SILVERMAN R. B.
Published: May 2016

Incubation of MAO B with the new substrate (I) alone does not lead to reasonable ESR signals but addition of the spin trap (IV) produces a triplet of doublets centered about a g value of 2.006 which is assigned to (V).
ChemInform Abstract: A Moessbauer Study of Site Occupation in YFe10V2.
Authors: CADOGAN J. M.
Published: May 2016

In accord with previous neutron diffraction results, the results of room temp., 57Fe Moessbauer spectroscopy demonstrate the distinct preference of vanadium for the 8i crystallographic sites in YFe10V2.
ChemInform Abstract: Photoelectrochemical Study of n‐HgCr2Se4 Single Crystals in Aqueous Solutions.
Authors: ETMAN M. , MERCERON T. , NEUMANN‐SPALLART M.
Published: May 2016

This first report of the photoelectrochemical behavior of n‐HgCr2Se4 shows the small band gap material to be a stable photoanode.
ChemInform Abstract: Influence of the Preparation Technique on Tc in the High Tc Superconductor Bi3/2Pb1/2Sr2CaCu2Oy.
Authors: EHMANN A. , KEMMLER‐SACK S. , KIEMEL R. , LOESCH S. + , SCHAEFER W. + , SCHLICHENMAIER M. , KAN L. , ELSCHNER B. , GROSS R. , HIPLER K. , HUEBENER R. P. , KHAN H. R. , RAUB CH. J.
Published: May 2016

The title compound is prepared by annealing in air a stoichiometric mixture of Bi(NO3)3·5 H2O, PbO, Sr(NO3)2, CaCO3, and CuO (600 °C, 1 h; 840‐850 °C, 80 h).
ChemInform Abstract: Gibbs Free Energy of Formation of NdB4 and Nd2FeB3
Authors: XI Z. , JI C. , SUN J.
Published: May 2016

is determined at temp. in the range 996‐1061 K by EMF measurements using a galvanic cell with a CaF2 single‐crystal solid electrolyte.
ChemInform Abstract: Interfacial Impedance Studies of the Surface Film Formation in a Nickel Alloy.
Authors: KVASTEK K. , BARESIC H. , HODKO D. , PRAVDIC V.
Published: May 2016

The initial stages of surface oxidation of the Ni‐Cr‐Fe alloy INCONEL‐600 are investigated using cyclic voltammetric and impedance measurements.
ChemInform Abstract: Surface Active Sites of V2O5‐MoO3 Catalysts.
Authors: SATSUMA A. , HATTORI A. , MIZUTANI K. , FURUTA A. , MIYAMOTO A. , HATTORI T. , MURAKAMI Y.
Published: May 2016

Measurements by the NO‐NH3 rectangular pulse (NARP) technique show that the concentration of surface redox sites is increased by the addition of MoO3 to V2O5.
ChemInform Abstract: Synthesis and Chemical Reaction of Magnesium and Calcium Bis(phosphorodiamidates) with Acids.
Authors: SATO S. , TAKAYANAGI T. , WATANABE M.
Published: May 2016

The title compounds (I) are prepared by addition of MgCl2 or CaCl2 to an aqueous solution of sodium phosphorodiamidate.
ChemInform Abstract: A New Type of Ferrimagnetic Chains in Ba7MnFe6F34 and Ba7FeFe6F34 Fluorides with Jarlite‐Type Structure.
Authors: LE LIRZIN A. , DARRIET J. , TRESSAUD A. , HAGENMULLER P.
Published: May 2016

The novel title compounds are prepared by heating stoichiometric mixtures of the corresponding fluorides at 600 and 650 °C, resp. (closed Pt tubes, argon).
ChemInform Abstract: Natural Amino Acids as Chiral Auxiliaries in Asymmetric Diels‐Alder Reactions.
Authors: BUENO M. P. , CATIVIELA C. , MAYORAL J. A. , AVENOZA A. , CHARRO P. , ROY M. A. , ANDRES J. M.
Published: May 2016

Various reaction conditions are employed to study the Diels‐Alder reaction of cyclopentadiene (I) with the L‐phenylalanine derivative (II).
ChemInform Abstract: Photochemistry of 1,3‐Bis(diazo)‐2‐indanone in Argon Matrix at Low Temperature.
Authors: LEE H.‐K. , KIM H.‐R. , TOMIOKA H. , YABE A.
Published: May 2016

Photolysis of the title compound (I), matrix isolated in argon at 10 K, yields the diazoketene (II) by Wolff rearrangement, which upon continuous irradiation is converted into the compounds (III) and (IV).
ChemInform Abstract: Aminosulfur Trifluorides: Relative Thermal Stability.
Authors: MESSINA P. A. , MANGE K. C. , MIDDLETON W. J.
Published: May 2016

The thermal stabilities of eleven aminosuflur trifluorides are examined by DTA techniques.
ChemInform Abstract: Reactions of β‐Sufinyl α,β‐Unsaturated Ketones with Dienes.
Authors: NISHIO T. , TOKUNAGA T. , OMOTE Y.
Published: May 2016

The β‐sulfinyl α,β‐unsaturated ketones (II) undergo cycloaddition reaction with the 1,3‐dienes (I) to form the 1,4‐cyclohexadienes (III) after extrusion of sulfenic acid.
ChemInform Abstract: Benzylic Cyanation via Oxidation and Simultaneous Nucleophilic Substitution.
Authors: LEMAIRE M. , DOUSSOT J. , GUY A.
Published: May 2016

Alkylated arenes are cyanated in the benzylic position using trimethylsilyl cyanide (III) in the presence of DDQ (II).
ChemInform Abstract: Functionalized Chloroenamines in Aminocyclopropane Synthesis. Part 2. Tricyclic Amidines from Carbamoylated Chloroenamines.
Authors: VILSMAIER E. , ADAM R. , ALTMEIER P. , CRONAUER R.
Published: May 2016

Attack of NaCN (II) to the enamines (I) followed by ring closure reaction yields the title amidines (III).
ChemInform Abstract: 5‐Amino‐3,3‐bis(trifluoromethyl)‐1‐phenyl‐4‐cyano‐4‐pyrazoline.
Authors: KOMAROV K. V. , CHKANIKOV N. D. , SEREDA S. V. , ANTIPIN M. YU. , STRUCHKOV YU. T. , KOLOMIETS A. F. , FOKIN A. V.
Published: May 2016

Phenylhydrazine (II) reacts with the alkene (I) to give the pyrazoline (III) mentioned in the title.
ChemInform Abstract: Synthesis and Some Conversions of 7‐(β‐Cyanoethyl)‐8‐bromo‐3‐methylxanthine.
Authors: ROMANENKO N. I. , FEDULOVA I. V. , KLYUEV N. A. , CHERVINSKII A. YU. , PRIIMENKO B. A. , STEPANOV A. N. , KREMZER A. A.
Published: May 2016

The title xanthine (III), prepared from the methylbromoxanthine (I) and acrylonitrile (II), is coupled with the primary amines (IV) to give the 8‐amino derivatives (V).
ChemInform Abstract: Rhodium Carbenoid‐Mediated Cyclizations. Synthesis and Rearrangement of Cyclic Sulfonium Ylides.
Authors: MOODY C. J. , TAYLOR R. J.
Published: May 2016

The α‐diazo‐β‐keto‐ω‐sulfenyl carboxylates (I) and (IV) are cyclized in the presence of dirhodium tetraacetate, producing the thiopyranones (III) or (V) under migration of the substituent at the sulfur.
ChemInform Abstract: A Convenient Preparation of Bis(phosphorothioyl) Sulfides.
Authors: MIN S. , ISHIHARA H. , MURAI T. , KATO S.
Published: May 2016

The title compounds (III) (9 examples) are prepared as shown.
ChemInform Abstract: Reactions of Bis(α‐hydroxyalkyl)phosphines with Iminoboranes.
Authors: KARASIK A. A. , ERASTOV O. A. , ARBUZOV B. A.
Published: May 2016

The iminoborane (III), obtained in situ from the borane (I) and phenyl isocyanide (II), reacts with the bis(hydroxymethyl)phosphine (IV) to give an 1:1 mixture of the dioxaphosphaborinane (V) and aniline (VI) from which the perhydrodiazadiphosphocine (VII) is formed during the attempt to isolate (V).
ChemInform Abstract: Preparation and Characterization of Alkali‐Metal (α‐Cyanoalkyl)trihydroborate‐Dioxane Complexes.
Authors: PETERS J. L. , MITTAKANTI M. , LOFTHOUSE T. J. , MORSE K. W.
Published: May 2016

The Li complexes (VI) are obtained in a one‐pot reaction.
ChemInform Abstract: The Formation of Ring‐Substituted Titanocene Derivatives Containing Chloro and Carbomethoxy Substituents.
Authors: RAUSCH M. D. , LEWISON J. F. , HART W. P.
Published: May 2016

Methoxycarbonylcyclopentadienylthallium (III) reacts with the titanium chlorides (IV) or (VI), producing the titanocene dichlorides (Va) or (Vb).
ChemInform Abstract: Oxidation‐Reduction of Carbonylcobalt Cation‐Anion Pairs in Coupling to Dimeric Cobalt Carbonyls.
Authors: LEE K. Y. , KOCHI J. K.
Published: May 2016

The coupling of (I) and (II) to yield (III) occurs also with the analogous PBu3‐substituted cation‐anion pair with a markedly lower rate.
ChemInform Abstract: Synthesis, Spectral, and Magnetic Investigations of 4‐Benzamidothiosemicarbazone Complexes.
Authors: ABU EL‐REASH G. M. , BEKHEIT M. M. , KHALIFA M. E. , IBRAHIM K. M.
Published: May 2016

The benzamidothiosemicarbazide (IV) is prepared in a one‐pot procedure from the hydrazone (I) by reaction with CS2 (II) and subsequent treatment with sodium chloroacetate and hydrazine hydrate (III).
ChemInform Abstract: (μ‐Hydroxo)bis(μ‐carboxylato)diruthenium and (μ‐Oxo)bis(μ‐carboxylato)diruthenium Complexes Containing Weak Intramolecular Ru···Ru Interactions.
Authors: NEUBOLD P. , WIEGHARDT K. , NUBER B. , WEISS J.
Published: May 2016

The hydrolysis of the complex (III) in the presence of carboxylic acids yields the diamagnetic μ‐oxo‐complexes (V), where each Ru is capped by a tridentate cyclic amine L. The crystal structure of (Va) is determined by X‐ray crystallography (space group Ibca, Z = 8).
ChemInform Abstract: Perfluoro‐n‐octylpalladium(zinc) Bromides. Remarkably Stable Coordinatively Unsaturated Organometallics.
Authors: KLABUNDE K. J. , CAMPOSTRINI R.
Published: May 2016

Reaction of perfluoro‐n‐octyl bromide (I) with palladium or zinc vapor (II) gives rise to the perfluoro‐n‐octylmetal bromides (III) which have a remarkable thermal stability.
ChemInform Abstract: Hard Ligands as Donors to Soft Metals. Part 4. Cationic Bis(solvent) Complexes of Palladium(II) and Platinum(II) Containing Monodentate Tertiary Phosphine Ligands.
Authors: HARTLEY F. R. , MURRAY S. G. , WILKINSON A.
Published: May 2016

The title complexes (III) and analogous compounds with PPh3 or Ph2P‐(CH2)2‐PPh2 as the phosphine ligands are prepared in CH2Cl2 or acetone and characterized by IR, 1H and 31P NMR spectroscopic data.
ChemInform Abstract: Synthesis of Octaalkyl‐ and Octaarylporphyrins from Nitroalkenes.
Authors: ONO N. , MARUYAMA K.
Published: May 2016

The nitroalkenes (I) react with ethyl isocyanoacetate (II) to give the pyrroles (III) which undergo oxidative condensation reaction after reduction, forming the porphyrins (IV).
ChemInform Abstract: A Charge‐Transfer Effect in Solid Phase Peptide Synthesis: Unusually High Reactivity in Peptide Bond Formation Between p‐Nitrobenzophenone Oxime Resin Ester and Amino Acid 4‐(Methylthio)phenyl Ester.
Authors: PARK D.‐H. , JUNG J.‐K. , LEE Y.‐S.
Published: May 2016

Unusually high reactivity is found in peptide bond formation between p‐nitrobenzophenone oxime resin esters (of N‐protected amino acids or oligopeptides) and amino acid Mtp esters.
ChemInform Abstract: Naphthaloyl Group: A New Selective Amino Protecting Group for Deoxynucleosides in Oligonucleotide Synthesis.
Authors: DIKSHIT A. , CHADDHA M. , SINGH R. K. , MISRA K.
Published: May 2016

The protected deoxynucleosides (III) are fairly stable and easily deprotected by treatment with ammonia.
ChemInform Abstract: A Convenient Approach to the Synthesis of Deoxyribonucleoside‐3′‐hydrogenphosphonates via Bis(1,1,1,3,3,3‐hexafluoro‐2‐propyl) Phosphonate Intermediate.
Authors: TAKAKU H. , YAMAKAGE S. , SAKATSUME O. , OHTSUKI M.
Published: May 2016

Treatment of phosphorus trichloride (I) with tert‐butanol (II) gives phosphorous dichloride (III) which reacts with the hexafluoroisopropanol (IV), yielding the bis(hexafluoroisopropyl) phosphite (V).
ChemInform Abstract: Formation and Transformation of δ‐Nb2O5 Solid Solutions in the System Nb2O5‐Al2O3.
Authors: YAMAGUCHI O. , TOMIHISA D. , SHIMIZU K.
Published: May 2016

Solid solutions of δ‐Nb2O5 and up to 50 mol% Al2O3 are obtained by annealing amorphous materials prepared by simultaneous hydrolysis of the alkoxides Nb(OPr)5 and Al(OPr)3.
ChemInform Abstract: Reaction of Alloys of Scandium and Zirconium with Hydrogen.
Authors: SEMENENKO K. N. , VERBETSKII V. N. , MOVLAEV E. A. , GARIBOV A. A.
Published: May 2016

Alloys of Zr and Sc are prepared with 10 to 90 at.% of Zr.
ChemInform Abstract: The Use of Hexamethyldisilthiane in the Synthesis of Transition Metal Thiohalides.
Authors: GIBSON V. C. , SHAW A. , WILLIAMS D. N.
Published: May 2016

Thiohalide compounds as W(S)Cl4, W(S)2Cl2, M(S)Cl3 (M: Mo, Nb, Ta), and M(O)(S)Cl2 (M: Mo, W) can be prepared in high yields as exemplified in the scheme.
ChemInform Abstract: The First Binuclear Oxoferrate(II): “Cs2K4(O2FeOFeO2)”.
Authors: MUELLER H.‐P. + , HOPPE R.
Published: May 2016

Red single crystals of the title compound are obtained by solid state reaction of Cs2O, K2O, and CsFeO2 in a closed Fe‐cylinder (wall‐reaction, 470 °C, 74 d).
ChemInform Abstract: Homogeneous Redox Catalysis Study of the Reductive Cyclization of 6‐Hepten‐2‐one. Unusual Effects of the Nature and Concentration of the Catalyst.
Authors: SWARTZ J. E. , KARIV‐MILLER E. , HARROLD S. J.
Published: May 2016

The title reaction is effected by the redox potential of the homogeneous catalysts 2‐methoxybiphenyl, biphenyl, naphthalene, and phenanthrene, the percentage of the product (III) increasing in the order shown.
ChemInform Abstract: A Facile Method for Synthesis of Three Carbon‐Homologated Carboxylic Acid by Regioselective Ring‐Opening of β‐Propiolactones with Organocopper Reagents.
Authors: KAWASHIMA M. , SATO T. , FUJISAWA T,
Published: May 2016

Organocopper reagents, such as diorganocuprates (e.g.
ChemInform Abstract: Activation of Molecular Oxygen into Hydrogen Peroxide via α‐Azobenzyl Hydroperoxide. A Generation of Hydrogen Peroxide from Organic Hydroperoxide by the Amine‐Base Catalyzed Reaction.
Authors: TEZUKA T. , OTSUKA T.
Published: May 2016

Autoxidation of the hydrazones (I) generates the α‐azobenzyl hydroperoxides (II) which are treated with bases such as triethylamine, N‐methylmorpholine, or pyridine, releasing H2O2 and the nitrile imines (III).
ChemInform Abstract: Ultrasound in Organic Synthesis. Part 16. Optimization of the Conjugate Additions to α,β‐Unsaturated Carbonyl Compounds in Aqueous Media.
Authors: LUCHE J. L. , ALLAVENA C.
Published: May 2016

The cyclohexenone (I) reacts with the alkyl halides (II) in the presence of an Zn‐Cu couple, prepared in situ under sonication, to give the alkylcyclohexanones (III).
ChemInform Abstract: Asymmetric 1,4‐Additions of Gilman Reagents to α,β‐Disubstituted (E)‐Enoylsultams/“Enolate” Protonations.
Authors: OPPOLZER W, , KINGMA A. J. , POLI G.
Published: May 2016

Asymmetric addition of the organocopper reagents (II) to the N‐enoyl sultams (I) yields the products (III) as sole diastereomers with purities of ≥ 98% after crystallization of the initially obtained diastereomeric mixtures of crude products.
ChemInform Abstract: Applications of α‐Alkoxyorganocuprate Reagents in the Regiospecific Synthesis of Cyclic Homoaldol Products.
Authors: LINDERMAN R. J. , GODFREY A. , HORNE K.
Published: May 2016

A general route for the preparation of ca. 20 cyclic homoaldol products such as (VII) is described via conjugate addition of sec. and tert. substituted α‐alkoxyorganocuprates derived from the stannanes (IV) to the non‐sterically demanding enones (V).
ChemInform Abstract: Coordinatively Induced 1,4‐Diastereoselection in the Reaction of Acyclic α,β‐Enones with Organocopper Reagents. A New Type of Organocopper Reagent.
Authors: COREY E. J. , HANNON F. J. , BOAZ N. W.
Published: May 2016

The chiral enones (I) and (V) are synthesized in 4 steps starting from (R)‐mandelic acid and subjected to reaction with various methyl cuprate reagents.
ChemInform Abstract: Aminated Polystyrene‐Bound Carbonylrhodium Clusters as a Catalyst for Deoxygenation of Various N‐O Bonds.
Authors: KANEDA K. , TAKEMOTO T. , IMANAKA T.
Published: May 2016

Poly(p‐chloromethylstyrene) is partially aminated to yield ligands which form polymer‐bound carbonylrhodium amine complexes.
ChemInform Abstract: Isolation and Alcoholysis of an ipso‐Adduct, Vinylidenecyclohexadiene from Photolysis of 1‐(p‐Ethoxyphenyl)vinyl Bromide.
Authors: KITAMURA T. , KABASHIMA T. , KOBAYASHI S. , TANIGUCHI H.
Published: May 2016

The vinylic bromide (I) mentioned in the title is irradiated in the presence of sodium ethoxide (II), yielding the vinylidene cyclohexadiene (III).
ChemInform Abstract: Synthesis of Lactones by Intramolecular Addition of Alkoxythiocarbonyl Free Radicals to Acetylenes.
Authors: NOZAKI K. , OSHIMA K. , UTIMOTO K.
Published: May 2016

The homopropargylic (di)thiocarbonates (I) undergo reductive cyclization upon reaction with tributyltin hydride and triethylborane, forming the alkylidene‐γ‐lactones (II).
ChemInform Abstract: Substituent Effects in the Photochemistry of 5‐Aryl‐3,3‐diphenyl‐2(3H)‐furanones. Steady‐State and Laser Flash Photolysis Studies.
Authors: PRATAPAN S. , ASHOK K. , CYR D. R. , DAS P. K. , GEORGE M. V.
Published: May 2016

Irradiation of the aryldiphenylfuranones (I) in benzene results in decarbonylation, forming the aryldiphenylpropenones (II).
ChemInform Abstract: Dyotropic Rearrangement of Cycloalkyl β‐Lactones. Formation of Spiro vs Fused Butyrolactones as a Function of Ring Size.
Authors: BLACK T. H. , DUBAY W. J. III , TULLY P. S.
Published: May 2016

Two‐fold lithiation of the carboxylic acids (II) followed by coupling with the cycloalkanecarboxaldehydes (I) gives the β‐cycloalkyl β‐hydroxy acids (III) which are converted into the β‐lactones (IV) upon treatment with benzenesulfonyl chloride in pyridine.
ChemInform Abstract: Studies on 1,3,4‐Oxadiazoles. Part 10. Preparation and Antimicrobial Activity of 2‐Aryl‐5‐p‐phenylsulfonylphenyl‐1,3,4‐oxadiazoles.
Authors: VANSDADIA R. N. , RODA K. P. , PAREKH H.
Published: May 2016

The title compounds (VII) are synthesized by POCl3‐mediated cyclocondensation of the hydrazide (V) with the carboxylic acids (VII).
ChemInform Abstract: Conversion of syn‐Sesquinorbornene to a 4,5‐Dihydro‐1,2,3‐oxadiazole 3‐Oxide Derivative.
Authors: NELSEN S. F. , TEASLEY M. F. , KAFTORY M.
Published: May 2016

Treatment of syn‐sesquinorbornene (I) with oxygen and nitrosyl hexafluorophosphate (II) gives the dihydrooxadiazole oxide (III), together with minor amounts of the cyclic diketone (IV) and the epoxide (V).
ChemInform Abstract: Synthesis of 3,4‐Dimethyldihydropyranocoumarins.
Authors: AHLUWALIA V. K. , MITTAL B. , MEHTA V. D.
Published: May 2016

The reaction between the benzopyrans (I) or (IV) and the phosphorane (II) represents a novel, convenient approach to the title compounds (III) and (V) which are of interest because of their possible physiological activities.
ChemInform Abstract: Synthesis of Substituted Tetrahydropyridines and m‐Hydroxybenzoic Acids.
Authors: CLINCH K. , MARQUEZ C. J. , PARROTT M. J. , RAMAGE R.
Published: May 2016

With the ultimate objective of designing acyclic pro‐drugs of the areca and ergot types, a series of substituted tetrahydropyridines such as (VII) and/or (VIII) is synthesized via intramolecular 1,6‐Michael addition of amines such as (VI).
ChemInform Abstract: Reaction of Chalcone Dibromide with Thiourea in Presence of Potassium Hydroxide.
Authors: HARODE R. , SHARMA T. C.
Published: May 2016

In connection with the study of the reactions of chalcone derivatives, the reaction between the dibromides (I) and thiourea (II) is investigated in the presence of potassium hydroxide.
ChemInform Abstract: Ynimines and Diynimines.
Authors: HIMBERT G. , FAUL D.
Published: May 2016

Perchlorobutenyne (I) reacts with the imines (II) to give the substitution products (III).
ChemInform Abstract: Pseudochalcogen Compounds. Part 18. Cyanamidolysis of Organophosphoryl‐(phosphonyl‐)chlorides.
Authors: KOEHLER H. + , KRETSCHMANN M. , JAEGER L. + , GEBEL W. , UEBEL R. , HEINE P. , FISCHER R.
Published: May 2016

Cyanamidolytic reactions of organophosphoryl and ‐phosphonyl chlorides are leading in dependence on the reaction conditions to metal organocyanamidophosphates e.g. (I) and ‐cyanamidophosphonates e.g. (II), respectively, and by‐products such as (III), as well as to corresponding organophosphoryl‐hydrogencyanamides e.g. (IV) and to bis(organylphosphoryl)‐ and bis(organophosphonyl)carbodiimides such as (V) and (VI).
ChemInform Abstract: A Novel Synthesis and Properties of N‐Bis(trifluoromethyl)nitroxy‐iminophosphine, (CF3)2NON=PH.
Authors: ANG H. G. , LEE F. K.
Published: May 2016

The title compound (III) is synthesized by a novel method by the 1:1 molar reaction of (I) with the phosphane (II).
ChemInform Abstract: Synthesis and Characterization of the Organozirconium and Organohafnium Complexes ((η5‐C5Me5)MCl)3O(OH)3Cl and ((η5‐C5Me5)MCl)3O(OH)4.
Authors: BABCOCK L. M. , DAY V. W. , KLEMPERER W. G.
Published: May 2016

The title complexes (III) and (IV) are synthesized by base‐catalyzed hydrolysis depending on the stoichiometry.
ChemInform Abstract: (Binaphtholate)W2(O‐tBu)4: The First Metal‐Metal Multiple Bond Supported by a Chiral Alkoxide Ligand.
Authors: HEPPERT J. A. , DIETZ S. D. , BOYLE T. J. , TAKUSAGAWA F.
Published: May 2016

The title compound (I) is prepared by reaction of W2(O‐tBu)6 with 3,3'‐dimethyl‐1,1'‐bi‐2,2'‐naphthol in toluene at 0 °C and characterized by X‐ray structure analysis (space group Pna21, Z=4), 1H and 13C NMR and UV/VIS spectra.
ChemInform Abstract: Wavelength‐ and Temperature‐Dependent Photolysis of a Diphosphene. Generation of 2,4,6‐Tri‐tert‐butylphenylphosphinidene and E/Z Isomerization.
Authors: YOSHIFUJI M. , SATO T. , INAMOTO N.
Published: May 2016

2,4,6‐Tris(tert‐butyl)phenylphosphonous(III) dichloride (I) is treated with magnesium to give the E‐diphosphene (II) which undergoes photolytically induced E/Z isomerization.
ChemInform Abstract: Multiple Bonds Between Main‐Group Elements and Transition Metals. Part 58. Germylene and Germanium Complexes of Manganese.
Authors: HERRMANN W. A. , KNEUPER H.‐J. , HERDTWECK E.
Published: May 2016

The novel μ‐dichlorogermylene complex (III) is formed on treatment of the substitutionally labile, photochemically generated Mn complex (I) with the GeCl2 adduct (II) in a molar ratio of 2:1.
ChemInform Abstract: Reversible Alkoxide β‐Hydrogen Elimination in a Homoleptic Rhenium Alkoxide Complex. Synthesis of Re3(μ‐O‐iPr)3(O‐iPr)6.
Authors: HOFFMAN D. M. , LAPPAS D. , WIERDA D. A.
Published: May 2016

The homoleptic title complex (III) is prepared according to the scheme.
ChemInform Abstract: Structure and Reactivity of Titanium/Platinum and Palladium Heterobinuclear Complexes with μ‐Methylene Ligands.
Authors: OZAWA F. , PARK J. W. , MACKENZIE P. B. , SCHAEFER W. P. , HENLING L. M. , GRUBBS R. H.
Published: May 2016

The μ‐methylene‐μ‐chloro‐TiPt complexes (III) and its Pd analogue (IX) are synthesized according to the scheme.
ChemInform Abstract: Chelating Ditelluroether Complexes of Palladium and Platinum: Synthesis and Multinuclear NMR Studies. Structure of Dibromo(meso‐1,3‐bis(phenyltelluro)propane)palladium(II), (Pd(meso‐PhTe(CH2)3TePh)Br2).
Authors: KEMMITT T. , LEVASON W. , WEBSTER M.
Published: May 2016

The cis‐planar chelate complexes (III) are synthesized according to the scheme.
ChemInform Abstract: A Simple Preparation of S‐Alkyl Homocysteine Derivatives: S‐Phosphonomethyl Homocysteines as Inhibitors of Glutamine Synthetase.
Authors: LOGUSCH E. W.
Published: May 2016

Treatment of the bromophthalimidobutyrate (IV) with the thioloacetates (III) gives the 2‐phthalimido‐4‐sulfenylbutyrates (V) which are saponified and N‐deprotected, yielding the homocysteines (VI) or (VII).
ChemInform Abstract: Regioselective Synthesis of Isopropenyl Esters by Ruthenium‐Catalyzed Addition of N‐protected Amino Acids to Propyne.
Authors: RUPPIN C. , DIXNEUF P. H. , LECOLIER S.
Published: May 2016

The N‐protected amino acids (I) react with 1‐propyne (II) in the presence of a ruthenium(II) complex catalyst to give the isopropenyl esters (III) which are converted to the corresponding amides, e.g. (Va) and (Vb).
ChemInform Abstract: Direct O‐Acylation of Small Molecules Containing CO‐ 2‐‐‐HN··←HO Units by a Distorted Amide: Enhancement of Amine Basicity by a Pendant Carboxylate in a Serine Protease Mimic.
Authors: SKOREY K. I. , SOMAYAJI V. , BROWN R. S.
Published: May 2016

The kinetics of the reaction of two series of amino alcohols (imidazoles such as (I); ethanolamines such as (III)) with a distorted amide (anilide (II)) are studied as models for the acylation of the serine proteases.
ChemInform Abstract: Enzyme‐Catalyzed Asymmetric Hydrolysis of meso‐Substrate. The Facile Synthesis of Both Enantiomers of cis‐2,5‐Disubstituted Tetrahydrofuran Derivatives.
Authors: NAEMURA K. , TAKAHASHI N. , CHIKAMATSU H.
Published: May 2016

The di(acyloxy)tetrahydrofurans (IV) are subjected to enzymatic hydrolysis, yielding selectively the mono‐esters (‐)‐(V).
ChemInform Abstract: Optimization of the Strength and Intergranular Corrosion Properties of the 7075 Al Alloy by Retrogression and Reaging.
Authors: ARAN A.
Published: May 2016

A treatment, which is known as "retrogression and reaging", is necessary to obtain a good strength and corrosion behavior in precipitation hardened materials of the 7000‐series of Al‐based alloys, which are widely used in the aerospace industry.
ChemInform Abstract: A Raman Investigation of the Hydration Number of Scandium(III) Ions
Authors: KANNO H. , YAMAGUCHI T. , OHTAKI H.
Published: May 2016

in aqueous ScCl3 and Sc(ClO4)3 solutions is performed in both the liquid state at room temp. and the glassy state at liquid N2 temperature.
ChemInform Abstract: Lattice Vibrations of the Cooperites PdO and PtS.
Authors: KLICHE G.
Published: May 2016

The IR spectra of PdO and PtS (both P42/mmc, Z=2) and the Raman spectrum of PdO are measured and assigned.
ChemInform Abstract: Effects of Preparation Variables on Particle Size and Morphology for Carbon‐ and Alumina‐Supported Metallic Iron Samples.
Authors: STEVENSON S. A. , GODDARD S. A. , ARAI M. , DUMESIC J. A.
Published: May 2016

Fe3(CO)12 is used to prepare highly dispersed metallic Fe on carbon black (I), graphite (II), and dehydroxylated Al2O3 (III) and the resulting catalysts are characterized by measurements of the magnetic susceptibilities, Moessbauer spectroscopy, and CO chemisorption studies.
ChemInform Abstract: Selenoantimonates(V): Preparation and Crystal Structure of Na3SbSe4 (I), K3SbSe4 (II), and (Ba(en)4)2(Ba(en)3)(SbSe4)2 (III).
Authors: EISENMANN B. , ZAGLER R.
Published: May 2016

The title compounds (I)‐(III), the first examples of selenoantimonates(V), are synthesized starting from stoichiometric amounts of the elements, which are reacted directly at 700 °C (in the case of (I)) or by refluxing in ethylene diamine ((II) and (III)).
ChemInform Abstract: Na4OI2 ‐ a New Type of Alkali Metal Chalcogenide Halide,
Authors: SABROWSKY H. , HIPPLER K. , VOGT P.
Published: May 2016

prepared as shown in the scheme (no yield given), crystallizes in the tetragonal system, space group I4/mmm, Z=2.
ChemInform Abstract: Syntheses, Crystal Structure and Vibrational Spectra of Cs3As7 and Cs3(NH3)As7.
Authors: SOMER M. , HOENLE W. + , VON SCHNERING H. G.
Published: May 2016

The ruby‐red compound (III) containing cage‐like anions As73‐ as the characteristic unit undergoes a first‐order phase transition at 640 K. The structure of the low temp. α‐modification is unknown but β‐(III) is isotypic to β‐Rb3P7 (Fm3m, Z=4).
ChemInform Abstract: Preparation of Crystalline LiNbxTa1‐xO3 (0 ≤ x ≤ 1) Films from Metal Alkoxide Solutions.
Authors: HIRANO S. , KATO K.
Published: May 2016

LiNbxTa1‐xO3 (0 ≤ x ≤ 1) films are prepared by dipping Si and α‐Al2O3 substrates with various crystallographic orientations into partially hydrolysed solutions of LiOEt, Nb(OEt)5, and Ta(OEt)5 in EtOH.
ChemInform Abstract: Homogeneous Catalytic Hydrogen Formation Using a Ditungsten Cluster and Low Valency Metal Ions in Aqueous Acidic Solutions.
Authors: MERTIS C. , PSAROUDAKIS N.
Published: May 2016

The diamagnetic nonachlorodimetallates (I) and (III), prepared by literature methods, react with Cr2+ aq or V2+ aq ions to give the two‐electron reduction products (II) and (IV), resp., containing the quadruply‐bonded species (W2Cl8)4‐ and (Re2Cl8)2‐.
ChemInform Abstract: Radical‐Cation Acidities in Solution and in the Gas Phase.
Authors: BORDWELL F. G. , CHENG J.‐P.
Published: May 2016

The acidities of radical cations derived from PhSH, PhOH, cyclopentadiene, PhCH2CN, fluorene, PhNH2, Ph2CH2, and toluene are estimated in DMSO and in the gas phase by combination of acidity data for the parent acids (pKHA) with oxidation potentials for HA (Eox(HA) in DMSO and IP(HA) in the gas phase) and with oxidation potentials for A‐ (Eox(A‐) in DMSO and EA(A·) in the gas phase).
ChemInform Abstract: Selective Hydrogenation of Esters to Alcohols at Isolated Active Sites of a Catalyst Obtained from Rh2O3, SnBu4 and SiO2.
Authors: EL MANSOUR A. , CANDY J. P. , BOURNONVILLE J. P. , FERRETTI O. A. , BASSET J.‐M.
Published: May 2016

The bimetallic catalyst prepared from the title compounds is shown to contain Rh atoms isolated by Sn0.
ChemInform Abstract: New Methods for β‐Conjugate Addition and β‐Hydroxyalkylation of Enones.
Authors: KIM S. , LEE P. H.
Published: May 2016

The cyclohexenone (I) is converted to the ylide (V) which reacts with the activated olefins (VI) in the presence of trimethylsilyl triflate to give the β‐conjugate addition products (VII).
ChemInform Abstract: 1,4‐Dioxene in Organic Chemistry. Part 7. Regiospecific Oxidative Cleavage of 1,4‐Dioxenyl Carbinols with Pyridinium Chlorochromate. A New Method for the Preparation of α‐Hydroxy Acids and α‐Keto Acids.
Authors: FETIZON M. , GOULAOUIC P. , HANNA I.
Published: May 2016

The adducts (III), obtained from the lithiated dioxene (I) and the carbonyl compounds (II), are oxidatively cleaved with pyridinium chlorochromate, forming the formyloxyethyl α‐hydroxycarboxylates (IV) which are saponified to give the corresponding acids (V).
ChemInform Abstract: Selective Cis‐Trans Isomerization of a Tetraene via an Allene Intermediate: Geometric Isomerism via an sp2 to sp2 Sigmatropic Hydrogen Shift and Kinetic Isotope Effect Studies.
Authors: PALENZUELA J. A. , ELNAGAR H. Y. , OKAMURA W. H.
Published: May 2016

The kinetics of the (1,5) sigmatropic hydrogen shift (shs) of vinylallene (II) to trienes (III) and (V) (which interconvert with one another by an unknown mechanism) and of the (1,7) shs of dienallene (VII) to tetraenes (VIII) and (IX) are determined.
ChemInform Abstract: (Dialkoxymethyl)lithiums: Generation, Stability, and Synthetic Transformations.
Authors: SHINER C. S. , TSUNODA T. , GOODMAN B. A. , INGHAM S. , LEE S. , VORNDAM P. E.
Published: May 2016

Title compounds such as (III) or (VIII) can be generated either by reductive lithiation of the phenylthio compound (I) or by transmetalation of the stannane (VI).
ChemInform Abstract: Novel Products in the Weiss Reaction of 1,2‐Cyclopentanedione. Improved Preparation of (3.3.3)Propellane‐3,7‐dione.
Authors: QUAST H. , ROESCHERT H. + , PETERS E.‐M. , PETERS K. , VON SCHNERING H. G.
Published: May 2016

The reaction of the cyclopentanedione tautomer (I) with the diester (II) under different basic conditions and work‐up methods leads to a variety of products such as (V)‐(VIII).
ChemInform Abstract: The Diels‐Alder and Ring Enlargement Reactions of 1‐Cyclobutenyl Ketones. Preparation of 1‐Acetyl‐1,3,5‐cyclooctatrienes.
Authors: FUJIWARA T. , OHSAKA T. , INOUE T. , TAKEDA T.
Published: May 2016

The 1,3‐dienes (I) react with the acetylcyclobutenes (II) in the presence of AlCl3 to give the Diels‐Alder adducts (III).
ChemInform Abstract: Unexpected Regioselective Diels‐Alder Cycloaddition Reactions Between 3‐Fluorobenzyne and 2‐Alkylfurans.
Authors: GRUBBLE G. W. , KEAVY D. J. , BRANZ S. E. , KELLY W. J. , PALS M. A.
Published: May 2016

3‐Fluorodehydrobenzene (II), generated from 1,3‐difluorobenzene (I) and butyllithium, reacts with the 2‐substituted furans (III) to give the regioisomeric cycloadducts (IV) and (V) with predominance of (IV).
ChemInform Abstract: A Novel Diels‐Alder Approach to Carbapenems.
Authors: BAYLES R. , FLYNN A. P. , GALT R. H. B. , KIRBY S. , TURNER R. W.
Published: May 2016

The aminomethylene 1,3‐dicarbonyl compounds (I) undergo (4 + 2)cycloaddition reaction with the ketene acetal (II), yielding the diastereomeric dihydropyrans (III) and (IV).
ChemInform Abstract: N,N‐Disubstituted 4‐Amino‐8‐methoxy‐3‐phenyl‐2H‐naphtho(1,2‐b)pyran‐2‐ones with Antiarrhythmic, Platelet Antiaggregating, and Local Anesthetic Activities.
Authors: BARGAGNA A. , LONGOBARDI M. , MARIANI E. , SCHENONE P. , RUSSO S. , VITAGLIANO S. , DE NOVELLIS V. , MARMO E.
Published: May 2016

The enaminones (III), prepared from the 2‐(hydroxymethylene)tetralones (I) and the secondary amines (II), are treated with chlorophenylacetyl chloride/triethylamine to give the crude lactones (V) which are directly dehydrochlorinated with DBN, yielding the fused pyranone (VI).
ChemInform Abstract: Spontaneous Solid‐State (8 + 8) Dimerization of Cycloheptatrienethione. The First Example of a Nontopochemically Controlled Reaction in the Ground State.
Authors: MACHIGUCHI T. , HASEGAWA T. , ITOH S. , MIZUNO H.
Published: May 2016

At 0 °C in the dark (I) dimerizes slowly to yield exclusively (IIa) (space group C2/c with Z = 8) which monomerizes back to (I) in solution.
ChemInform Abstract: Benzylpiperazine Derivatives. Part 8. Syntheses, Antiulcer, and Cytoprotective Activities of 1‐(Aminocarbonylalkyl)‐4‐benzylpiperazine Derivatives and Related Compounds.
Authors: OHTAKA H. , YOSHIDA K. , SUZUKI K. , SHIMOHARA K. , TAJIMA S. , ITO K.
Published: May 2016

The piperazine (I) is coupled with the alkyl iodides (II), the acyl chlorides (IV), and the aromatic aldehydes (VI) to give the derivatives (III), (V), and (VII).
ChemInform Abstract: Synthesis and Reactions of New Cyclic Polysulfides. 6,10‐Disubstituted (1,2,3)Trithiolo(5,4‐h)benzopentathiepins.
Authors: SATO R. , KIMURA T. , GOTO T. , SAITO M.
Published: May 2016

The benzodithioledithiones (I) are sulfurized in liquid ammonia to give the polysulfides (III) mentioned in the title.
ChemInform Abstract: Synthesis and Reactions of 1‐Thianaphthalenes.
Authors: HORI M. , KATAOKA T. , SHIMIZU H. , AOKI H.
Published: May 2016

Alkylation of the thiochromenes (I), (VII), and (XV) with methyl iodide (II) in the presence of silver perchlorate gives the 1‐methylthiochromenium perchlorates (III), (VIII), or (XVI).
ChemInform Abstract: Synthesis and Complexing Ability of N‐Alkylmorpholino Crown Ethers and Their Derivatives.
Authors: IKEDA I. , KOHMOTO K. , OZAWA Y. , KUROSAWA H. , OKAHARA M.
Published: May 2016

Treatment of the aza‐crown ethers (I) with tosyl chloride and an alkali metal hydroxide results in intramolecular ring‐closure, forming the N‐octylmorpholino crown ethers (II).
ChemInform Abstract: Generation, Chemical Stability, and Reactivity of Aldolate Dianions.
Authors: MARTIN V. A. , ALBIZATI K. F.
Published: May 2016

Deprotonation of the β‐hydroxy ketones (I) and (IV) with lithium diisopropylamide followed by silylation with trimethylsilyl chloride (II) gives the silyl enol ethers (III) or (V).
ChemInform Abstract: tBu2P‐P=PBrtBu2·LiBr and the Formation of tBu2P‐P:.
Authors: FRITZ G. , VAAHS T. , FLEISCHER H. , MATERN E.
Published: May 2016

In the course of a search for an appropriate precursor of a phosphonidene (III) is obtained as shown in the scheme.