bluuebunny/crossref_metadata_2025_split huggingface dataset:
ChemInform Abstract: Fused Pyrimidines by a Tandem Aza‐Wittig/Electrocyclic Ring Closure Strategy: Synthesis of Pyrazolo(3,4‐d)pyrimidine, (1,2,3)Triazolo‐(4,5‐d)pyrimidine, and Thiazolo(4,5‐d)pyrimidine Derivatives.
Authors: MOLINA P. , ARQUES A. , VINADER M. V. , BECHER J. , BRONDUM K. 
Published: May 2016

AbstractThe strategy for the synthesis of the fused pyrimidines (IX), (XI), or (XV) starts with the heterocyclic β‐chloroaldehydes (I), (X), or (XII) which are first converted to the corresponding azides such as (III) then coupled with aniline (IV), forming Schiff bases such as (V) and finally treated with triphenylphosphine (VI) to give iminophosphoranes, e.g. (VII) or (XIII).
ChemInform Abstract: Ring Transformation of 1,5‐Benzoxazepines into Spirobenzoxazoles. Synthesis of Pyrazolo(1′,5′:3,4)(1,2,4)triazino(5,6‐b)(1,5)benzoxazepines and Spiro(benzoxazole‐2′(3′H),4(1H)‐pyrazolo(5,1‐c)(1,2,4)triazines).
Authors: KURASAWA Y. , OKIYAMA M. , KAMIGAKI Y. , KANOH M. , TAKADA A. , OKAMOTO Y. 
Published: May 2016

AbstractThe pyrazolotriazines (II) or (VII) react with o‐aminophenol hydrochloride (I) to give the fused oxazepines (III) and (VIII).
ChemInform Abstract: Silicon Compounds and Its Group Homologues. Part 85. Unsaturated Silicon Compounds. Part 31. Storing of the Labile Silaethene Me2Si=C(SiMe3)2 with Benzophenone.
Authors: WIBERG N. , PREINER G. , SCHURZ K. , FISCHER G. 
Published: May 2016

AbstractBenzophenone (III) is able to "store" the silaethene (II) produced from the Li compounds (I) with formation of a (2 + 4)cycloadduct (IV).
ChemInform Abstract: Synthesis, Crystal Structure, Electrical Properties, and Band Electronic Structure of Bis(1,3‐propanediyldithio)tetrathiafulvalenium Tetraiodoindate(III), (BPDT‐TTF)3(InI4)2.
Authors: GEISER U. , WANG H. H. , SCHLUETER J. , CHEN M. Y. , KINI A. M. , KAO I. H.‐C. , WILLIAMS J. M. , WHANGBO M.‐H. , EVAIN M. 
Published: May 2016

AbstractThe title compound is obtained by electrocrystallization from a solution containing (NBu4) (InI4) and bis(1,3‐propanediyldithio)tetrathiafulvene (BPDT‐TTF) in 1,1,2‐trichloroethane.
ChemInform Abstract: Synthesis and Structure of a Tungstacyclopentatriene.
Authors: KERSCHNER J. L. , FANWICK P. E. , ROTHWELL I. P. 
Published: May 2016

AbstractThe reduction of the W(VI) compound (I) in the presence of bis(diphenylphosphino)methane (II) results in the formation of the 16‐electron complex (III).
ChemInform Abstract: Energy‐Minimized Structures and Calculated and Experimental Isomer Distributions in the Hexaaminecobalt(III) System (Co(trap)2)3+ (trap: 1,2,3‐Propanetriamine).
Authors: COMBA P. , HAMBLEY T. W. , ZIPPER L. 
Published: May 2016

AbstractAerial oxidation of an aqueous solution of CoCl2 and 2 equiv. of 1,2,3‐propanetriamine yields two isomers of the title complex, the meso‐ and rac‐isomer, which are separated preparatively by fractional crystallization, and fully characterized by 13C NMR and electronic spectroscopy.
ChemInform Abstract: Steric Crowding in Coordination Compounds: Electron‐Transfer Kinetics of the (Co(tmen)3)3+/2+ Couple (tmen: 2,3‐Dimethylbutane‐2,3‐diamine).
Authors: HENDRY P. , LUDI A. 
Published: May 2016

AbstractThe complex (I) is prepared by the reaction of CoCl2 with the ligand via bis‐ligand‐trans‐diaquo and ‐trans‐dichloro intermediates in a yield of 74%.
ChemInform Abstract: Synthesis, Crystal Structure, Magnetic Properties, and Thermodynamic and Electrochemical Studies of the Binuclear Complex (μ‐Oxalato)bis((1,4,8,11‐tetraazacyclotetradecane)nickel(II)) Nitrate.
Authors: BATTAGLIA L. P. , BIANCHI A. , BONAMARTINI CORRADI A. , GARCIA‐ESPANA E. , MICHELONI M. , JULVE M. 
Published: May 2016

AbstractThe new binuclear title complex (I) is prepared from lithium oxalate, cyclam and Ni(II) nitrate in water.
ChemInform Abstract: Bathophenanthroline‐Ruthenium(II) Complexes as Non‐Radioactive Labels for Oligonucleotides which Can Be Measured by Time‐Resolved Fluorescence Techniques.
Authors: BANNWARTH W. , SCHMIDT D. , STALLARD R. L. , HORNUNG C. , KNORR R. , MUELLER F. + 
Published: May 2016

AbstractThe bathophenanthroline‐Ru(II) complexes (I) are prepared by known methods.
ChemInform Abstract: Metabolites of Microorganisms. Part 251. The Esmeraldins A and B, Dark‐Green Pigments from Streptomyces antibioticus, Strain Tue 2706.
Authors: KELLER‐SCHIERLEIN W. , GEIGER A. , ZAEHNER H. + , BRANDL M. 
Published: May 2016

AbstractIn contrast to saphenamycin (III) esmeraldin A (isolated as a mixture of higher saturated and unsaturated fatty acid esters (Ia)‐(Id) of esmeraldic acid) and esmeraldin B (II) do not reveal antibacterial activity.
ChemInform Abstract: Silicon‐Mediated Skipped Diene Synthesis. Application to the Melon Fly Pheromone.
Authors: WILSON S. R. , ZUCKER P. A. 
Published: May 2016

AbstractThe (hydroxyalkyl)(trimethylsilylmethyl)cyclopropanes (I) or (III) are treated with catalytic amounts of acids to give the 1,4‐pentadienes (II) or (IV).
ChemInform Abstract: Magnetic‐Field‐Induced Orientation of Crystallites in Powders of Layered Intercalation Compounds Detected by NMR.
Authors: HALSTEAD T. K. , SCHMIDT C. , SPIESS H. W. , SCHOELLHORN R. + , MUELLER‐WARMUTH W. + , MOELLER H. + 
Published: May 2016

AbstractAn orientation of crystallites by a magnetic field (7.2 T) is detected by 1H NMR techniques in powder samples of hydrated monolayered chalcogenides of the type A+ x(H2O)y(NbS2)x‐ (A: Na, K; x = 0.33; y = 0.67).
ChemInform Abstract: Homogeneous Coprecipitation as a Means Toward High‐Tc and Sharp‐Transition YBa2Cu3O7‐x Superconducting Oxides.
Authors: LIU R. S. , CHANG C. T. , WU P. T. 
Published: May 2016

AbstractA high‐Tc superconducting powder, YBa2Cu3O7‐x, is synthesized from an aqueous solution containing Y, Ba, and Cu salts (nitrates or chlorides) as starting materials and oxalic acid/urea as precipitates.
ChemInform Abstract: Spontaneous Acetylene‐1,3‐diene Isomerization of Sulfides and Sulfones.
Authors: YAKOVLEV V. V. , STADNICHUK M. D. 
Published: May 2016

AbstractThe arylthioalkyne (I) or the arylsulfonylalkyne (III) rearrange spontaneously in boiling iPrOH to give the 1,3‐dienes (II) or (IV).
ChemInform Abstract: The Mechanism for the Conversion of Uric Acid into Uroxanate and Allantoin. A New Base‐Induced 1,2‐Carboxylate Shift.
Authors: POJE M. , SOKOLIC‐MARAVIC L. 
Published: May 2016

AbstractUsing the C‐labeled uric acid (I) the mechanism of its degradation is elucidated.
ChemInform Abstract: Nucleophile‐Catalyzed Additions of Aldehydes and Ketones to Acrylic Compounds. The Effectiveness of High Pressures.
Authors: HILL J. S. , ISAACS N. S. 
Published: May 2016

AbstractThe addition of various vinyl species such as (I) with carbonyl compounds such as (II) or (IV) is effectively catalyzed by tert.‐amines, especially DABCO.
ChemInform Abstract: Vilsmeier‐Haack Reaction in the Series of Polyfluorinated β‐Dicarbonyl Compounds.
Authors: PASHKEVICH K. I. , BOBROV M. B. , SALOUTIN V. I. , RUBAYA M. N. 
Published: May 2016

AbstractVilsmeier reaction of the β‐keto esters (I) gives the α‐formyl‐β‐chloro compounds (III) as the result of a formylation/chlorination process.
ChemInform Abstract: Reactions of N‐Bromodifluoromethanimine.
Authors: BAUKNIGHT C. W. JUN. , DESMARTEAU D. D. 
Published: May 2016

AbstractCyanuric fluoride (I), obtained from cyanuric chloride, is pyrolyzed to give the unstable cyanogen fluoride (II) which leads to the formation mixture of the title compound (III) and the N‐(dibromo)amine (IV) on treatment with bromine and potassium fluoride.
ChemInform Abstract: Umpolung of Tropone: The Synthesis of Novel 2‐Substituted Tropones via 2‐Halocycloheptadienone Enolates.
Authors: MIYANO H. , NITTA M. 
Published: May 2016

AbstractThe 2‐halotropones (I) are reduced to form the salt (II) which is coupled with tropylium tetrafluoroborate (III) to give the 2‐tropyltropone (V).
ChemInform Abstract: Azo Coupling of o‐Dinitrobenzene: Reaction of the Dianion and the Anion Radical with Aryldiazonium Cations.
Authors: TODRES Z. V. , OVSEPYAN G. TS. , IONINA E. A. , KOSNIKOV A. YU. , LINDEMAN S. V. , STRUCHKOV YU. T. 
Published: May 2016

AbstractThe o‐dinitrobenzene dianion (II) is coupled with the diazonium salt (Ia) to give the azo compound (III).
ChemInform Abstract: Synthesis and Stereochemical Investigation of the 2Z,4E‐ and 2E,4E‐Isomeric 5‐Aryl‐3‐methyl‐2,4‐pentadienoic Acids.
Authors: MAKIN S. M. , MIKERIN I. E. , SHAVRYGINA O. A. , LANINA T. I. 
Published: May 2016

AbstractBased‐catalyzed condensation of ethyl methyl β‐methylglutaconate (II) with the aromatic aldehydes (I) affords the 2Z,4E‐configurated pentadienoic acids (III) which undergo decarboxylation in boiling lutidine to give the 2Z,4E‐configurated monoacids (IV).
ChemInform Abstract: Reaction of Organic Azides with Unsaturated Compounds. Part 9. Rearrangement Products of 1‐Arylsulfonyl‐4,4,5‐trimethyl‐5‐ethoxy‐1,2,3‐triazolines.
Authors: SEMENOV V. P. , MISHIN M. A. , OGLOBLIN K. A. 
Published: May 2016

AbstractThe reaction between the arylsulfonyl azides (I) and 2‐methyl‐3‐ethoxybut‐2‐ene (II) yields the ethyl N‐arylsulfonyl‐2,2‐dimethylpropanimidates (III) as the main products along with minor amounts of the arylsulfonamides (IV).
ChemInform Abstract: The Reactions of N‐Benzoylperoxycarbamic Acid with Azines and Imines.
Authors: PAREDES R. , BASTOS H. , MONTOYA R. , CHAVEZ A. L. , DOLBIER W. R. JUN. , BURKHOLDER C. R. 
Published: May 2016

AbstractThe title compound BPC reacts with azines such as (I) or imines such as (V) to form oxaziridines such as (II) or (VI) rather than N‐oxides such as (III).
ChemInform Abstract: The Effect of Ultrasound and of Phosphine and Phosphine Oxides on the Khand Reaction.
Authors: BILLINGTON D. C. , HELPS I. M. , PAUSON P. L. , THOMSON W. , WILLISON D. 
Published: May 2016

AbstractThe influence of the phosphine ligands in the intermediate cobalt carbonyl complexes (III) on the yields and rates of the Khand reaction is studied.
ChemInform Abstract: Organic Synthesis Using PTC. Part 8. Synthesis of Macrocyclic Systems Containing Nitrogen and/or Oxygen as Heteroatom(s).
Authors: SINGH P. , JAIN A. 
Published: May 2016

AbstractThe reaction of benzenesulfonamide and p‐toluenesulfonamide with p‐toluenesulfonate esters of diols under liquid‐liquid or solid‐liquid phase‐transfer conditions (NaOH, triethylbenzylammonium chloride, benzene) gives cyclic products of type (I) and/or (II).
ChemInform Abstract: Z‐1‐Ethoxy‐3‐trimethylsilyl‐1‐propene: Synthon in the Preparation of 2‐Formylallyltrimethylsilanes and 2‐Formyl‐3‐alkoxyalkyltrimethylsilanes.
Authors: PORNET J. , RAYADH A. , MIGINIAC L. 
Published: May 2016

AbstractThe vinylic ether (I) is coupled with the aldehydes (II) in the presence of TiCl4 to form the α‐(silylmethyl)acroleines (IV) via the intermediate oxetanes (III).
ChemInform Abstract: Methylene Compounds of Non‐Metallic Elements. Part 8. Preparation and Reactions of Methylene‐Bridged Phosphorus(III)‐Phosphorus(V) Compounds.
Authors: FILD M. , BUNKE D. , SCHOMBURG D. 
Published: May 2016

AbstractSyntheses for methylene‐bridged diphosphorus compounds of the type (IV) are described in the scheme.
ChemInform Abstract: Synthesis of Uracil‐5‐phosphinic and 5‐Thiophosphonic Acids.
Authors: MARUYAMA T. , KIMURA S. , HONJO M. 
Published: May 2016

AbstractReaction of 5‐bromo‐2,4‐dimethoxypyrimidine (I) with butyllithium and diethyl chlorophosphite (II) produces the phosphinate (III) which is hydrolyzed to yield uracil‐5‐phosphinic acid (IV).
ChemInform Abstract: Preparation of Aryl, Alkynyl, and Vinyl Organo‐Copper Compounds by the Oxidative Addition of Zerovalent Copper to Carbon‐Halogen Bonds.
Authors: EBERT G. W. , RIEKE R. D. 
Published: May 2016

AbstractReduction of CuI·PEt3 with lithium naphthalide in DME or THF gives a highly reactive copper slurry which is used in the preparation of various organo‐copper compounds from aryl, vinyl, and alkynyl bromides or iodides.
ChemInform Abstract: Secondary Phosphine Chalcogenides. Part 10. Reactions of Diphenylphosphane Oxide, Ph2P(O)H, with the Bis(2,4‐pentanedionato) Complexes of Nickel, Palladium, and Platinum, Bis(cycloocta‐1,5‐diene)nickel(0) and Nickel Tetracarbonyl. Crystal and Molecular Structure of (Ni(acac)((Ph2PO)2H)) (acac‐: O,O′‐C5H7O‐ 2).
Authors: WALTHER B. , HARTUNG H. , MASCHMEIER M. , BAUMEISTER U. , MESSBAUER B. 
Published: May 2016

AbstractThe Ni complex (IIIa) is investigated by X‐ray diffraction (space group not given).
ChemInform Abstract: Protective Group Dependent Stability of Intersaccharide Bonds ‐ Synthesis of a Fucosyl Chitobiose Glycopeptide.
Authors: KUNZ H. , UNVERZAGT C. 
Published: May 2016

AbstractThe acetyl‐protecting groups in the fucose moiety of the trisaccharide unit Fch stabilize the intersaccharide bonds such that they are not ruptured during the cleavage of the C‐terminal tert.‐butyl protecting group from, e.g., the condensation product of the components (III) and (IV) with TFA.
ChemInform Abstract: A Route to Functionalized Branched‐Chain Amino Sugars via Nitrous Acid‐Promoted Spiroaziridine Formation.
Authors: ALVES R. J. , CASTILLON S. , DESSINGES A. , HERCZEGH P. , CRISTOBAL LOPEZ J. , LUKACS G. , OLESKER A. , THANG T. T. 
Published: May 2016

AbstractThe protected deoxy‐α‐D‐threo‐hexopyranosidulose (I) reacts with trimethylsilyl cyanide (II) and ammonia (III) to give the α‐aminonitrile (IV) which is converted into the aldehyde (X) via the aziridine (VII) as outlined in the reaction scheme.
ChemInform Abstract: Alkaloids. Part 55. Synthesis of Stereoisomeric Vincamines.
Authors: KOBLICOVA Z. , HOLUBEK J. , TROJANEK J. 
Published: May 2016

AbstractZn dust reduction of the perchlorate (III) gives a separable mixture of the stereoisomeric (±)‐eburnane carbonitriles (IV) + (V).
ChemInform Abstract: Growth and Characterization of Hg1‐xCdxTe Photochemical Native Oxides.
Authors: KAO T.‐M. , SIGMON T. W. 
Published: May 2016

AbstractThe growth of native oxides on Hg1‐xCdxTe (I) is of considerable importance for the successful fabrication of (I) IR detector arrays.
ChemInform Abstract: Electrical Conduction and Dielectric Breakdown in Sputter‐Deposited Silicon Dioxide Films on Polysilicon.
Authors: SUYAMA S. , OKAMOTO A. , SERIKAWA T. 
Published: May 2016

AbstractSiO2 films are sputter‐deposited on a polysilicon substrate in an oxygen‐argon atmosphere at 200 °C. It is found that the current density of the sputtered film is significantly reduced by increasing the O2/(O2 + Ar) mixing ratio or by decreasing the gas pressure.
ChemInform Abstract: A Novel Bismuth Iron Oxide Bi2Sr3‐xCaxFe2O9 Isostructural with the “2212” Superconductor.
Authors: HERVIEU M. , MICHEL C. , NGUYEN N. , RETOUX R. , RAVEAU B. 
Published: May 2016

AbstractNew orthorhombic oxides of formula Bi2Sr3‐xCaxFe2O9 are obtained as pure phases in the range 0 ≦ x ≦ 1 by annealing appropriate mixtures of Bi2O3, Fe2O3, SrCO3, and CaCO3 (850 °C, 3 d).
ChemInform Abstract: The Reduction of Ba2YCu3O7 (I) and Y2Cu2O5 (II) by H2
Authors: GALLAGHER P. K. , O'BRYAN H. M. , GRADER G. S. 
Published: May 2016

Abstractis investigated by TG, DTA, and XRD methods in 15% H2 + 85% N2.
ChemInform Abstract: Hydrocarbonylating Cyclization of Dienes. Part 6. Metal‐Induced Skeletal Rearrangements During an Attempted Synthesis of the Acorane System from Substituted 1,1‐Divinylcyclohexanes.
Authors: EILBRACHT P. , ACKER M. , HUETTMANN G. + , WINKELS I. 
Published: May 2016

AbstractAiming at a regio‐ and stereoselective synthesis of the acorane skeleton (II), substituted divinylcyclohexanes such as (I) are treated under the conditions A) of hydrocarbonylating cyclization.
ChemInform Abstract: Organic Reactions at High Pressure: The Mechanism of the Homo Diels‐Alder Reaction of Homofuran (2‐Oxabicyclo(3.1.0)hex‐3‐ene).
Authors: KLAERNER F.‐G. + , SCHROEER D. + 
Published: May 2016

AbstractAt high pressure and in the presence of (II) the thermolysis of (‐)‐(I) yields the adduct (III) indicating that the title reaction proceeds via the bimolecular pathway.
ChemInform Abstract: A Gas Phase Study of the Regioselective BH‐ 4 Reduction of Some 2‐Substituted Maleic Anhydrides.
Authors: VAN DER WEL H. , NIBBERING N. M. M. , KAYSER M. M. 
Published: May 2016

AbstractIn order to study the regioselectivity of the BH4‐ reduction of anhydrides such as (I)‐(III), Fourier transform ICR mass spectrometric results are compared with LUMO calculations of these anhydrides.
ChemInform Abstract: A Convenient Preparation of Substituted 2,5‐Dibenzylidenecyclopent‐3‐en‐1‐ones.
Authors: DESIRAJU G. R. , KISHAN K. V. R. 
Published: May 2016

AbstractIn connection with an investigation of the solid state photochemistry of crystalline olefins, cyclopentenes of type (II) and (IV) are required.
ChemInform Abstract: Synthesis of Optically Active β‐Keto Sulfides Catalyzed by Quinine/Quinidine and Homogeneous Catalysts.
Authors: BHONGALE N. N. , PORE V. S. , NATU A. A. 
Published: May 2016

AbstractThe β‐dimethylamino ketones (I) react with thiophenol (II) in the presence of quinine or quinidine or homogenous catalysts, prepared from these alkaloids by treatment with a molybdenum complex, to form the chiral β‐benzenesulfonyl ketones (III).
ChemInform Abstract: An Efficient Synthesis of (.+‐.)‐Cuparene from 4,4‐Dimethyl‐2‐cyclohexen‐1‐one.
Authors: SHIAO M.‐J. , LIANG D. , KU C.‐S. , YANG C.‐H. 
Published: May 2016

AbstractThe cyclohexenone (I) mentioned in the title is converted to the 4‐arylated silyl enol ether (VI) by two alternative pathways outlined in the reaction scheme.
ChemInform Abstract: Benzofurans. Ketene Intermediates in the Perkin Reaction.
Authors: BRADY W. T. , GU Y.‐Q. 
Published: May 2016

AbstractThe Perkin reaction of the (o‐carbonylphenoxy)acetic acids (I) with acetic anhydride and sodium acetate is examined, forming the benzofuranes (II) and carbon dioxide (III).
ChemInform Abstract: Compounds with Positive Ionotropic Activity. Part 2. Synthesis of Alkyl‐Substituted Phenanthridine Derivatives and Studies of Their Positive Inotropic Activity.
Authors: HEBER D. , JUERGENS J. + , RAVENS U. , SCHUMANN J. 
Published: May 2016

AbstractReaction of the phenanthridines (I) and (IV) with the alkyl halides (II) or (V) gives the phenanthridinium salts (III) and (VI) respectively.
ChemInform Abstract: Synthesis and Pharmacological Activities of Some Substituted Thienopyrimidin‐4‐ones.
Authors: PERRISSIN M. , FAVRE M. , LUU DUC CUONG LUU DUC CUONG , HUGUET F. , GAULTIER C. , NARCISSE G. 
Published: May 2016

AbstractThe title compounds (IVb), (IVc) and (IXa) show analgesic activity, while (IVd) and (VIb) exhibit antiinflammatory activity.
ChemInform Abstract: Quinazolinones. Part 15. Synthesis of 1‐(Aminoalkyl)‐2‐aryl‐2,3‐dihydro‐4(1H)‐quinazolinones.
Authors: BUEYUEKTIMKIN S. + , BUSCHAUER A. , SCHUNACK W. 
Published: May 2016

AbstractAlkylation of the anthranilic amide (I) with the bromoalkyl phthalimides (II) gives the coupling products (III) which are cyclized with the aromatic aldehydes (IV), forming the quinazolinones (V).
ChemInform Abstract: CNS Depressants. Part 7. (Diallylamino)‐1,3,5‐triazines Substituted at the Triazine Nucleus.
Authors: KREUTZBERGER A. , SCHLAEFER I. + 
Published: May 2016

AbstractThe diaminotriazines (III) are prepared by coupling the diallylaminodichlorotriazine (I) with the amines (II).
ChemInform Abstract: Studies in 1‐Aza‐1,3‐butadienes: A Novel Synthesis of Substituted Thiadiazine 1‐Oxides Through Diels‐Alder Cycloaddition of N‐Sulfinylanilines and Open‐Chain Conjugated Azomethines.
Authors: SINGAL K. K. , SINGH B. , REHALIA K. S. 
Published: May 2016

AbstractDienes of type (I) act as excellent heterodienes and undergo facile 1,4‐cycloaddition with N‐sulfinylanilines such as (II) to give thiazine 1‐oxides of type (III) (28 examples).
ChemInform Abstract: Reaction of 2‐Isocyanatobenzoyl Chloride with N‐Methylhydroxylamine Hydrochloride: Synthesis of 3,1,4‐ and 4,1,3‐Benzoxadiazepines.
Authors: ACHARYA B. P. , RAO Y. R. 
Published: May 2016

AbstractThe reaction between the isocyanate (Ia) or its 5‐chloro derivative (Ib) and the hydroxylamine (II) in pyridine yields the hitherto unknown 4,1,3‐benzoxadiazepines (III).
ChemInform Abstract: Temperature Dependence of Molecular Conformation in Solid‐State Phase Transformations of N‐Base Adducts of Bis(1,5‐cyclooctanediyl)diboroxane by X‐Ray Diffraction.
Authors: YALPANI M. , KOESTER R. + , BOESE R. , SULKOWSKI M. 
Published: May 2016

AbstractThe structures of the two adducts (I) which show solid‐solid phase transformations at about 127 and 88 °C, resp., are determined by X‐ray diffraction at low temp. ((Ia) at ‐145 °C: space group P21/c, Z = 8 and (Ib) at ‐163 °C: P21/n, Z=4).
ChemInform Abstract: A New Synthesis of Heterocycles via Carbonylation of Amines with Carbon Monoxide in the Presence of Selenium.
Authors: YOSHIDA T. , KAMBE N. , OGAWA A. , SONODA N. 
Published: May 2016

AbstractThe diamines (I) react with carbon monoxide (II) and selenium to form the imidazolidinones (III).
ChemInform Abstract: Synthesis of Steroidal Pyrazoles.
Authors: AHMAD M. S. , ALAM Z. , ALI S. M. 
Published: May 2016

AbstractConjugated steroidal ketones of the stigmastane or cholestane type are treated with phenylhydrazine according to A) to give the corresponding pyrazoles as shown for the examples (Ia) and (Ib).
ChemInform Abstract: Solvent and Reversed‐Phase Extraction Chromatographic Separation of Niobium, Zirconium, and Hafnium with Aliquat 336.
Authors: DAS N. R. , CHATTOPADHYAY P. 
Published: May 2016

AbstractEffective solvent extraction and reversed phase extraction chromatography (RPEC) procedures for tracer scale separation of the critical element pair, Zr‐Hf, in admixture with Nb using tricaprylmethylammonium chloride (Aliquat 336) as the liquid anion exchanger are developed.
ChemInform Abstract: Characterization of Silicon Nitride and Silicon Carbonitride Layers from 1,1,3,3,5,5‐Hexamethylcyclotrisilazane (I) Plasmas.
Authors: BROOKS T. A. , HESS D. W. 
Published: May 2016

AbstractIt is found that the properties of silicon nitride (prepared from dilute (I)/NH3 plasmas) and carbonitride (dilute (I)/H2 plasmas) films critically depend on the ratio of RF power density to the (Me2Si‐NH)3 (I) flow rate, W/Fm.
ChemInform Abstract: Organometallic Compounds of the Lanthanoids. Part 40. Recent Developments in Organolanthanoid Chemistry
Authors: SCHUMANN H. , ALBRECHT I. , GALLAGHER M. , HAHN E. , JANIAK C. , KOLAX C. , LOEBEL J. , NICKEL S. , PALAMIDIS E. 
Published: May 2016

AbstractReview: (The Chemistry of Heteronuclear Clusters and Multimetallic Catalysts; Proceedings of the Seminar in Koenigstein, Sept.
ChemInform Abstract: Use of Thermal Lensing Spectrophotometry (TLS) for the Study of Mononuclear Hydrolysis of Uranium(IV).
Authors: GRENTHE I. , BIDOGLIO G. , OMENETTO N. 
Published: May 2016

AbstractTLS is shown to be a quantitative tool for the study of chemical equilibria in very dilute (∼10‐5 M) aqueous solution.
ChemInform Abstract: Reactivities of Stable Rotamers. Part 23. Some Addition Reactions Toward the Vinyl Group in 9‐(2‐Vinyl‐1‐naphthyl)‐fluorene Rotamers.
Authors: OKI M. , TSUKAHARA J. , SONODA Y. , MORIYAMA K. , NAKAMURA N. 
Published: May 2016

AbstractIn some of the reactions studied the rotamers sp‐(I) and ap‐(III) (equilibrium constant 0.47; barrier to rotation about 28.6 kcal/mol) behave extremely different.
ChemInform Abstract: Diastereoselectivity in the Intramolecular Diels‐Alder Reaction of Dienylpropynoates.
Authors: BIRTWISTLE D. H. , BROWN J. M. , FOXTON M. W. 
Published: May 2016

AbstractThe product ratio in Diels‐Alder reactions of α‐chiral dienes is examined.
ChemInform Abstract: Group 4 Organometallic Reagents. Part 6. The Organotin‐Mediated Monofunctionalization of Diols: An Insight into the Selective Monoesterification with Acyl Chlorides.
Authors: ROELENS S. 
Published: May 2016

AbstractInfluences of the reaction conditions (temp., concentration, time, reversed addition of reactants) on the yields of the monoesters (V) derived from the intermediates (IV) by hydrolytic work‐up are studied.