bluuebunny/crossref_metadata_2025 huggingface dataset:
ChemInform Abstract: Thermal (2 + 2) Cycloaddition of Benzene Derivative. Cycloaddition of Z‐(6)Paracycloph‐3‐ene with Tetracyanoethylene.
Authors: TOBE Y. , SORORI T. , KOBIRO K. , KAKIUCHI K. , ODAIRA Y.
Published: May 2016

(6)Paracyclophane (I) and tetracyanoethylene (II) produce the cycloadduct (III) after a reaction time of three hours, while the olefin (IV) and (II) form the isomeric product (V) within one minute.
ChemInform Abstract: The Aprotic Conjugate Addition Reactions of the Carbanions of Octenyl Sulfides and Thiocarbamates with γ‐Crotonolactone. Stereochemical and Mechanistic Aspects of Reactions Conducted in the Absence and Presence of Hexamethylphosphoric Triamide.
Authors: HAYNES R. K. , SCHOBER P. A. , BINNS M. R.
Published: May 2016

The lithiated carbanions of (II), (VI) and (XV) undergo conjugate addition to the crotonolactone (I) to give mixtures of the syn and anti allylic sulfides, sulfones and thiocarbamates (III), (VII), (VIII), (XIII) and (XIV) and the corresponding vinylic products (IV) and (IX)‐(XII).
ChemInform Abstract: Regioselective Cycloadditions of N‐Protonated Azomethine Ylides and 2‐Azaallyl Anions Generated from N‐(Silylmethyl) Thioimidates, Synthetic Equivalents of Nonstabilized Nitrile Ylides.
Authors: TSUGE O. , KANEMASA S. , YAMADA T. , MATSUDA K.
Published: May 2016

Trimethylsilylmethyl isothiocyanate (I) reacts consecutively with the Grignard compounds (II) and the halides (III) to form the thioimidates (IV).
ChemInform Abstract: Di‐, Tri‐, Tetra‐, and Pentacationic Alkylammonium Salts. Ligands Designed to Prevent the Nonspecific Electrostatic Precipitation of Polyanionic, Functionalized Cyclopentadienyltitanium‐Substituted Heteropolytungstate Electron Microscopy Labels with Cationic Biomolecules.
Authors: KEANA J. F. , WU Y. , WU G.
Published: May 2016

The polycationic alkylammonium salts mentioned in the title are prepared by coupling polyamines with oligoether‐substituted oxiranes and subsequent quaternization with methyl iodide.
ChemInform Abstract: Triazolopyridines. Part 7. Preparation of Bromo‐triazolopyridines and ‐triazoloisoquinolines.
Authors: ABARCA B. , BALLESTEROS R. , MOJARRED F. , JONES G. , MOUAT D. J.
Published: May 2016

Lithiation of the heterocyclic compounds (I) or (IIIa) with LDA followed by reaction with Br2 leads to the product mixtures (II) or (IV) and (V) (for (IIc) and (IV) no yields given).
ChemInform Abstract: Chemotherapeutical Agents. Part 5. Syntheses and Activities of Novel Pyrimidines Derived from 5‐Cyano‐6‐aryl‐2‐thiouracil.
Authors: RAM V. J. , VANDEN BERGHE D. A. , VLIETINCK A. J.
Published: May 2016

The thiouracils (I) are used for the preparation of a series of pyrimidine derivatives.
ChemInform Abstract: A Palladium‐Catalyzed Carbonyl Insertion Route to Pyrido(2,1‐b)quinazoline Derivatives.
Authors: TILLEY J. W. , COFFEN D. L. , SCHAER B. H. , LIND J.
Published: May 2016

Pyridoquinazolines such as (VIII) are synthesized from the chloronicotinoyl chloride (I), the aminobutylimidazole (II), and the isopropylaniline (III).
ChemInform Abstract: Synthesis of 3‐((2′‐Piperidyl‐ and 2′‐homopiperidyl)methyl)‐tetrahydro‐2‐benzazepines and Related Compounds.
Authors: HAMMOUDA M. , HAMAMA W. S. , AFSAH E. M.
Published: May 2016

With a view to synthesizing useful seven‐membered heterocyclic drugs, the benzazepines (V) are prepared as shown.
ChemInform Abstract: Use of Pyrylium Synthons in the Synthesis of Hemispherands with Modified Cavities. X‐Ray Structures of the 21‐Hemispherand and a Pyrido Hemispherand.
Authors: DIJKSTRA P. J. , DEN HERTOG H. J. JUN. , VAN STEEN B. J. , ZIJLSTRA S. , SKOWRONSKA‐PTASINSKA M. , REINHOUDT D. N. , VAN EERDEN J. , HARKEMA S.
Published: May 2016

The so‐called hemispherands (III) are prepared by coupling the bis(bromomethyl)teraryls (I) with diethylene glycol (II).
ChemInform Abstract: Transannular Cyclizations of 1,2‐Dithia‐5,8‐diazacyclodeca‐4,8‐dienes During Borohydride Reduction.
Authors: JOSHUA A. V. , SCOTT J. R. , SONDHI S. M. , BALL R. G. , LOWN J. W.
Published: May 2016

Treatment of the dithiadiazacyclododecadienes (Ia) ‐ (Id) with sodium borohydride yields only minor amounts of the corresponding monocyclic products (II), the main products are the isomeric imidazolidinodithiazepines (III) and (IV).
ChemInform Abstract: Synthesis of 2‐Amino‐3‐boronopropionic Acid: A Boron‐Containing Analogue of Aspartic Acid.
Authors: KINDER D. H. , AMES M. M.
Published: May 2016

Coupling of the chloromethylboronic ester (I) with diethyl malonate (II) and subsequent partial saponification yield the dioxaborolanylmethylmalonic monoester (V).
ChemInform Abstract: Chemistry of Silicon‐Sulphur Compounds. Part 44. Trialkoxysilylthio Derivatives of Permethylpolysilanes.
Authors: WOJNOWSKI W. , DRECZEWSKI B.
Published: May 2016

A two‐step reaction of the dichloropolysilanes (II) with the thiol (I) leads to the title compounds (III).
ChemInform Abstract: Formation of a Stable Selenirane via Cycloaddition of Selenirene.
Authors: ANDO W. , KUMAMOTO Y. , TOKITOH N.
Published: May 2016

Photolysis of the furanoselenadiazole (I) in the presence of furan (II) yields the products (III) ‐ (V) via intermediates such as the selenirene (VI) or the diradical (VII).
ChemInform Abstract: Stereoselective Addition of Benzophenone to (C5Me5)Hf(2,3‐Dimethyl‐1,3‐butadiene)Cl.
Authors: AUSEMA J. B. , HESSEN B. , TEUBEN J. H.
Published: May 2016

The reaction of (I) with benzophenone (II) results in sequential insertion of two ketone molecules in the diene‐Hf bond through adduct intermediates.
ChemInform Abstract: Metal Induced Cyclotrimerization of a λ3‐Phosphaalkyne: Formation of Vanadium‐Complexed Valence Isomers of 1,3,5‐Triphosphabenzene.
Authors: MILCZAREK R. , RUESSELER W. + , BINGER P. , JONAS K. , ANGERMUND K. , KRUEGER C. + , REGITZ M.
Published: May 2016

The exothermic reaction of the η6‐naphthalene‐V complex (I) with an excess of tert. butylphosphaacetylene (II) leads to the formation of the complex (III) which in solution shows dynamic behavior.
ChemInform Abstract: Salicylate Initiated Formation of the Discrete, Mixed‐Valent, Nonanuclear Manganese Complex (Mn9O4(O2CPh)8(sal)4(salH)2(py)4) (salH2: salicyclic acid, py: pyridine).
Authors: CHRISTMAS C. , VINCENT J. B. , HUFFMAN J. C. , CHRISTOU G. , CHANG H.‐R. , HENDRICKSON D. N.
Published: May 2016

The reaction of the trinuclear complex (I) with the bifunctional acid (II) leads to the formation of the title complex (III), which is characterized by an X‐ray structure analysis (space group C2/c, Z=2).
ChemInform Abstract: Anionic Fe3P Clusters: Preparation and Reactions Involving Framework Changes.
Authors: DECK W. , SCHWARZ M. , VAHRENKAMP H.
Published: May 2016

The synthesis of (Ia) and (Id) is shown in the scheme, (Ib) and (Ic) are already known.
ChemInform Abstract: A Novel Stereoselective Access to Des‐AB‐Aromatic Corticosteroids via Intramolecular Cycloadditon Reaction‐Potential Intermediates for the Synthesis of Corticosteroids.
Authors: NEMOTO H. , NAGAI M. , ABE Y. , MOIZUMI M. , FUKUMOTO K. , KAMETANI T.
Published: May 2016

The title compounds (XI) and (XV) are prepared starting from the nitrile (Ia) via the aldehyde (III), which is transformed to the intermediate (IV) (no yields given) by a known procedure.
ChemInform Abstract: Novel Preparation of N‐Protected Amino Acid Active Esters Using 1,2,2,2‐Tetrachloroethyl Carbonates.
Authors: JAOUADI M. , MARTINEZ J. , CASTRO B. , BARCELO G. , SENNYEY G. , SENET J.‐P.
Published: May 2016

The tetrachloroethyl chloroformate (I) is coupled with the hydroxy compounds (II) to produce the activated carbonates (III) which react with N‐protected amino acids such as (IV) to give the amino acid esters (V).
ChemInform Abstract: Synthesis and Properties of N2,3‐Ethenoguanosine and N2,3‐Ethenoguanosine 5′‐Diphosphate.
Authors: KUSMIEREK J. T. , JENSEN D. E. , SPENGLER S. J. , STOLARSKI R. , SINGER B.
Published: May 2016

Guanosine (I) reacts with phenyldiazomethane (II) to give the benzylation products (III) and (IV).
ChemInform Abstract: Electronic Structure of Cr+, Fe+, and Ni+ in Octahedral Fluoride Lattices.
Authors: FERNANDEZ RODRIGO G. , PUEYO L.
Published: May 2016

From cluster‐model calculations of the octahedral MF65‐ units (M: Cr+, Fe+, and Ni+) the ground state nuclear potentials and the metal‐fluoride equilibrium distances are obtained.
ChemInform Abstract: Structural Elucidation of Oligomeric Aqua‐molybdenum Cations in Solution by 17O NMR.
Authors: RICHENS D. T. , HELM L. , PITTET P.‐A. , MERBACH A. E.
Published: May 2016

The 17O NMR study of three diamagnetic oligomeric species representative of the oxidation states V, IV, and III of Mo gives the first direct definitive evidence for the presence of the following structural units in solution: (Mo2(yl‐O)2(μ2‐O)2(H2O)6)2+, (Mo3(μ3‐O)(μ2‐O)3(H2O)9)4+, and (Mo2(μ2‐OH)2(H2O)8)4+.
ChemInform Abstract: Characteristics of a Glassy Carbon Electrode Modified in a Mixture of Osmium Tetroxide and Hexacyanoruthenate.
Authors: COX J. A. , DAS B. K.
Published: May 2016

Cyclic voltammetry at a glassy carbon electrode in a solution containing 1 mM OsO4, 2 mM K4Ru(CN)6, and 0.5 M NaCl at pH 2 results in the accumulation of an electroactive film, which is found to be stable for several days.
ChemInform Abstract: Corrosion of Ruthenium Dioxide Hydrate by Ce(IV) Ions and Other Oxidants.
Authors: MILLS A. , GIDDINGS S. , PATEL I.
Published: May 2016

Corrosion stabilities and catalytic activities for H2O oxidation have been measured for different RuO2·xH2O samples (commercial powders and one sample prepared from RuCl3·nH2O) in the presence of Ce(IV).
ChemInform Abstract: Ammonia Synthesis Over Supported Iron Catalyst Prepared from Amorphous Iron‐Zirconium Precursor. Part 1. Bulk Structural and Surface Chemical Changes of Precursor During Its Transition to the Active Catalyst.
Authors: BAIKER A. , SCHLOEGL R. + , ARMBRUSTER E. , GUENTHERODT H. J. +
Published: May 2016

Active NH3 synthesis catalysts are prepared by in situ activation of amorphous Fe91Zr9.
ChemInform Abstract: Influence of the Impregnation Acidity on the Structure and Properties of Molybdena‐Silica Catalysts.
Authors: ISMAIL H. M. , THEOCHARIS C. R. , ZAKI M. I.
Published: May 2016

MoO3/SiO2 catalysts have been prepared using impregnation solutions of pH 1, 6, and 11. ((NH4)6 Mo7O24·4 H2O aqueous solution of pH 6, adjusted to pH 1 with HCl and to pH 11 using NH4OH).
ChemInform Abstract: Selenito Complexes: Hydrogenselenites and Pyroselenites of Divalent Transition Metal Ions.
Authors: SALIB K. A. R. , EL‐SHETARY B. A. , STEFAN S. L.
Published: May 2016

The reaction of excess selenous acid with Cu(II), Ni(II), Co(II) and Mn(II) in aqueous EtOH yields the following polymeric compounds: (Cu(HOSeO2)(Se2O5)1/2(H2O)1/2), (Ni(HOSeO2)(SeO3)1/2(H2O)3/2), (CoSe2O5), and (MnSe2O5) (50‐60% yields).
ChemInform Abstract: Reactions of Atomic Gold Ions with Aliphatic and Aromatic Hydrocarbons and Alkyl Halides.
Authors: CHOWDHURY A. K. , WILKINS C. L.
Published: May 2016

The gas‐phase reactions of laser‐desorbed gold cation with various aliphatic and aromatic hydrocarbons and alkyl halides are studied by means of Fourier transform mass spectrometry and discussed.
ChemInform Abstract: Spectroscopic and Magnetic Studies of Two Electrically Conducting Charge‐Transfer Compounds of 7,7,8,8‐Tetracyanoquinodimethanide with Cationic Copper Chelates.
Authors: SCHWARTZ M. , HATFIELD W. E.
Published: May 2016

In order to discuss the electronic structural properties of the compounds (I), which show high electrical conductivities and low activation energies, their electronic spectra and magnetic susceptibilities are investigated.
ChemInform Abstract: The First Structural Characterization of a Dimeric Lithium Ketone Enolate‐Lithium Diisopropylamide Complex.
Authors: WILLIARD P. G. , HINTZE M. J.
Published: May 2016

The aggregated title compound (III) crystallizes in the space group P21 with Z=2.
ChemInform Abstract: 13C and 17O NMR and IR Spectroscopic Study of a Series of Carbonyl(4‐Substituted pyridine)(meso‐tetraphenylporphinato)iron(II) Complexes. Correlations Between NMR Chemical Shifts and IR Stretching Frequencies of the Carbonyl Ligand and Taft Parameters of the Pyridine Substituent.
Authors: BOX J. W. , GRAY G. M.
Published: May 2016

The electron‐donor ability of an axial ligand may have a significant effect on the reactivity of a dioxygen ligand coordinated to an iron‐porphyrin center.
ChemInform Abstract: Aminolysis of Halo(trifluoromethyl)benzenes at High Pressures.
Authors: MATSUMOTO K. , UCHIDA T. , OKAMOTO T. , HASHIMOTO S.
Published: May 2016

The title reaction leads to the respective aminobenzenes with yields depending on precursors and reaction conditions.
ChemInform Abstract: Thermal Rearrangements of Aromatic Compounds. Part 10. Automerization of Benzene.
Authors: SCOTT L. T. , ROELOFS N. H. , TSANG T.‐H.
Published: May 2016

Thermolysis of (1,2‐13C2)benzene at 1110 °C with a 2.0‐s contact time gives o‐, m‐, and p‐benzene‐13C2 in a ratio of 72:24:4.
ChemInform Abstract: About the Ozone Cleavage of Chloroprene and of 2‐Chloro‐3‐methyl‐1,4‐butadiene in Methanol.
Authors: GRIESBAUM K. , MEISTER M.
Published: May 2016

Monoozonolyses of the chlorodienes (I) in methanol occur with more than 90% at the non‐chlorinated double bonds to afford the corresponding oxo compounds (II) with selectivities of 96 and 80% respectively.
ChemInform Abstract: Studies on Fluoroalkylation and Fluoroalkoxylation. Part 24. Magnesium‐ Induced Single Electron Transfer in Reactions of Fluoroalkyl Iodides with Alkenes and Alkynes.
Authors: CHEN Q.‐Y. , QIU Z.‐M. , YANG Z.‐Y.
Published: May 2016

The magnesium‐catalyzed reaction of the fluoroalkyl iodides (I) with the alkenes (II) or the alkynes (V) yields the addition products (III) and (VI) respectively.
ChemInform Abstract: A Convenient Synthesis of 5‐Alkylbicyclo(3.1.0)hexan‐2‐ones Including the Natural Product Sabina Ketone.
Authors: HAMON D. P. G. , SHIRLEY N. J.
Published: May 2016

The chloro ketones (IV) can be obtained either from the dienes (I) via the acetals (III) or directly from (I) as shown in the scheme.
ChemInform Abstract: Facile Construction of Terpenoid Frameworks by Cycloadditions with Methyl 2‐Chlorocyclopropylidenacetate.
Authors: SPITZNER D. , ENGLER A. , WAGNER P. , DE MEIJERE A. , BENGTSON G. , SIMON A. , PETERS K. , PETERS E.‐M.
Published: May 2016

The title compounds (III) (X‐ray analysis: space group Pnma, Z = 8) undergoes (2 + 4)cycloaddition with (II) or (IV) to give the adducts (I) or (V).
ChemInform Abstract: Synthesis of α‐Arylated Phenylsulfonylacetonitriles. A Useful Precursor for Substituted α‐Arylalkanoic Acid and Their Derivatives.
Authors: SUZUKI H. , QUI Y. , INOUE J. , KUSUME K. , OGAWA T.
Published: May 2016

The aryl iodides (I) are coupled with the anion (II) of phenylsulfonylacetonitrile to give the substitution products (III) which are further alkylated, yielding the α‐sulfonyl nitriles (V).
ChemInform Abstract: Liquid‐Crystalline Compounds. Part 43. Hexaalkylnylbenzene Derivatives, the First Hydrocarbons as New Columnar or Nematic Discotic Liquid Crystals.
Authors: KOHNE B. , PRAEFKE K.
Published: May 2016

Pd(II)‐catalyzed coupling of hexabromobenzene (I) with the terminal alkynes (II) yields the hexaalkynylbenzenes (III).
ChemInform Abstract: Synthetic Studies on Eriolanin: 1,2‐Carbonyl Transpositions of cis‐Bicyclo(4.2.0)octanone via Enol Thioether Formation.
Authors: WAKAMATSU T. , MIYACHI N. , OZAKI F. , BAN Y.
Published: May 2016

Lithiation of the bicyclo(4.2.0)octanone (I) and subsequent reaction with diphenyl disulfide (II) produce a mixture of the bis(phenylthio) ketones (III) which are reduced with sodium borohydride, yielding the bis(phenylthio)cyclobutanols (IV) and (V).
ChemInform Abstract: Functionalized 1,2‐Dioxetanes as Potential Photogenotoxic Agents: 1,2‐Dioxetanes with Electrophilic Chemical Handles for the Functionalization with Protic Nucleophiles.
Authors: ADAM W. , FUCHS R. , KIRCHGAESSNER U. +
Published: May 2016

The dioxetanes (Ib) or (Ic) (accessible from (Ia)) react with the compounds shown on the scheme to give the derivatives (V), (VII), (IX), (XI), or (XIV).
ChemInform Abstract: Synthetic Studies on Teleocidin. Part 3. Regioselective Introduction of Nitro Group at 4‐Position of Substituted Indole Derivatives.
Authors: MASUDA T. , UEDA K. , ASANO O. , NAKATSUKA S.‐I. , GOTO T.
Published: May 2016

Nitration of the indolecarboxylates (I) and (VIa) with conc.
ChemInform Abstract: Synthesis of 3‐Phenyl‐4‐arylidene‐5‐o‐hydroxyphenylpyrazoles.
Authors: INGLE V. N.
Published: May 2016

The novel pyrazoles (III) are prepared by reaction of the 2‐arylidene 1,3‐diketones (I) with hydrazine hydrate (II) in acetic acid.
ChemInform Abstract: Synthesis and Biological Properties of Some 6H‐Pyrido(4,3‐b)carbazoles.
Authors: ARCHER S. , ROSS B. S. , PICA‐MATTOCCIA L. , CIOLI D.
Published: May 2016

Coupling of the phenylhydrazine (I) with the perhydroisoquinoline (II) yields the hydroxypyridocarbazole (IVb) after dehydrogenation and ether cleavage.
ChemInform Abstract: Synthons for Polyketides: An Improved Synthesis of Methyl 3,3‐Dialkoxy‐ 2‐methylpropanoates.
Authors: WALKUP R. D. , OBEYESEKERE N. U.
Published: May 2016

Consecutive treatment of methyl 2,3‐dibromo‐2‐methylpropanoate (I) with excess sodium methoxide and acetic acid yields methyl 3,3‐dimethoxy‐2‐ propanoate (II) as the main product which is transacetalized with the alcohols (IV) to give the title compounds (V).
ChemInform Abstract: Synthesis and Properties of 2‐Furoylethenylphosphonium Salts.
Authors: SHEVCHUK M. I. , BRATENKO M. K. , CHERNYUK I. N. , MOSEICHUK M. G.
Published: May 2016

Starting with the furyl carbinol (I), the phosphonium salts (V) are synthesized via the intermediates (II) and (III).
ChemInform Abstract: Synthesis and Characterization of Niobium(II) and Tantalum(II) Compounds Containing Triple M‐M Bonds.
Authors: COTTON F. A. , DIEBOLD M. P. , ROTH W. J.
Published: May 2016

Convenient preparative methods for the confacial bioctahedral dimers (I) with a triple M2‐M2 bond are developed.
ChemInform Abstract: Functional Models for Catechol 1,2‐Dioxygenase. Structure, Reactivity, and Mechanism.
Authors: QUE L. JUN. , KOLANCZYK R. C. , WHITE L. S.
Published: May 2016

The complex (I) is obtained by heating the nitrilotriacetato‐diaquo‐Fe complex, di‐tert.‐butylcatechol and the sec. amine in DMF, and is characterized by an X‐ray structure determination (space group P21/n, Z=4).
ChemInform Abstract: High‐Pressure Kinetic Study of an Unusual Hydrolysis Reaction of (Hexafluoroacetylacetonato)bis(ethylenediamine)cobalt(III) in Aqueous Solution.
Authors: KITAMURA Y. , VAN ELDIK R.
Published: May 2016

Kinetic measurements for the title reaction of (I) to give (II) are performed in two acidity ranges as a function of pH and pressure.
ChemInform Abstract: Reaction of Bis(triphenylphosphine)tricarbonylcobalt(I) with Metal Carbonyl Anions (Co(CO)4)‐, (Co(CO)3PBu3)‐, (Mn(CO)5)‐ and (CpFe(CO)2)‐: Kinetics and Mechanism of the Reaction of (Co(CO)3(PPh3)2)+ with (Co(CO)4)‐.
Authors: ATWOOD J. D.
Published: May 2016

The reaction of the cation (I) with the anion (II) leads exclusively to the complex (III) under an inert atmosphere.
ChemInform Abstract: Cluster Syntheses. Part 14. The Syntheses and Structural Characterizations of the High‐Nuclearity Sulfidoruthenium Carbonyl Cluster Compounds Ru5(CO)14(μ4‐S)2, Ru6(CO)17(μ4‐S)2, and Ru7(CO)20(μ4‐S)2.
Authors: ADAMS R. D. , BABIN J. E. , TASI M.
Published: May 2016

The reaction of cluster (I) with Ru3(CO)12 (II) under UV irradiation gives the higher nuclearity cluster compounds (III), (IV), and (V).
ChemInform Abstract: Evidence for a Molecular Hydrogen Complex of Rhodium. Some Factors Affecting cis‐Dihydride ←→ η2‐Dihydrogen Exchange.
Authors: BIANCHINI C. , MEALLI C. , PERUZZINI M. , ZANOBINI F.
Published: May 2016

Treatment of the monohydride (I) with an equimolar amount of (II) yields crystals of (III) (space group P1 with Z=2), the cation of which has a pseudooctahedral, η‐H2 structure.
ChemInform Abstract: Synthesis of (Os(NH3)5(η2‐TMB))2+: A Valuable Precursor for Pentaammineosmium(II) Chemistry.
Authors: HARMAN W. D. , TAUBE H.
Published: May 2016

The Os(III) complex (I) reacts with the sterically hindered arene (II) in the presence of activated magnesium to the title complex (III), which can be stored for several weeks at 0 °C as a solid under argon.
ChemInform Abstract: The Use of the Strecker Reaction for the Synthesis of Sympathomimetic Amine Analogues and Their cis‐Pt(II) Complexes.
Authors: HAROUTOUNIAN S. A. , GEORGIADIS M. P. , DELITHEOS A. K. , BAILAR J. C. JUN.
Published: May 2016

The new sympathomimetic amine analogues (V) and (IX) as well as their Pt complexes (VII) and (VIII) are prepared via Strecker synthesis from the carbonyl compounds (I).
ChemInform Abstract: Diterpenoid Total Synthesis. Part 26. Synthesis of (+)‐Baiyunol, the Diterpene Aglycone of the Sweet Glycoside Baiyunoside.
Authors: MORI K. , KOMATSU M.
Published: May 2016

The bicyclic hydroxy ester (II), whose preparation from the ketol (I) has already been described, is used as starting material in the synthesis of the title compound (+)‐(IX).
ChemInform Abstract: Biologically Active Quassinoids: Synthetic Methodology for the Conversion of Chaparrin into Glaucarubolone Esters and Quassionoid Analogues.
Authors: BHATNAGAR S. C. , CARUSO A. J. , POLONSKY J. , SOTO RODRIGUEZ B.
Published: May 2016

Chaparrin (Ia), which does not possess antineoplastic activity, is transformed to its derivatives (Ib)‐(Id) using common methods under optimized conditions.
ChemInform Abstract: Asymmetric Synthesis of β‐2‐ and β‐3‐Selenienylalanine.
Authors: GRONOWITZ S. , SVENSSON A.
Published: May 2016

The selenophene‐carboxaldehydes (I) are converted to the prochiral acetamides (IV), which undergo asym.
ChemInform Abstract: The Synthesis of (‐)‐Anamarine
Authors: VALVERDE S. , HERNANDEZ A. , HERRADON B. , RABANAL R. M. , MARTIN‐LOMAS M.
Published: May 2016

(XVII).
ChemInform Abstract: Single‐Crystal X‐Ray Structure of the High‐Temperature Superconductor Ba2YCu3O7‐x.
Authors: GARBAUSKAS M. F. , ARENDT R. H. , KASPER J. S.
Published: May 2016

The title material, which becomes superconducting at temp. < 90 K, crystallizes in the orthorhombic system, space group Pmmm, Z=1.
ChemInform Abstract: Dependence of Film Thickness on Electrochemical Kinetics of Polypyrrole and on Properties of Lithium/Polypyrrole Battery.
Authors: OSAKA T. , NAOI K. , OGANO S. , NAKAMURA S.
Published: May 2016

The charging‐discharging behavior of a Li/LiClO4/polypyrrole battery has been investigated as a function of the thickness of the polypyrrole film cathode and its formation potential.
ChemInform Abstract: Catalytic Oxidation of CO on Co3O4 Supported on γ‐Al2O3.
Authors: EL‐SHOBAKY G. A. , FAGAL G. A. , SABER T. M. H.
Published: May 2016

The influence of Co3O4 content and calcination temp. on the catalytic activity of Co3O4/Al2O3 has been studied.
ChemInform Abstract: Interactions in the System CaSe‐In2Se3.
Authors: GULIEV T. N. , RUSTAMOV P. G. , YAGUBOV N. I.
Published: May 2016

Mixtures of CaSe and In2Se3 are heated to 1000 K for 4 h and then left at 850 K for 500 h. The formation of the compounds CaIn2Se4 (I) and CaIn4Se7 (II) is observed.
ChemInform Abstract: Kinetic Determination of Selectivity Constants of Anion Extraction in Phase‐Transfer Catalytic Systems.
Authors: DE LA ZERDA J. , SASSON Y.
Published: May 2016

A kinetic method is developed based on the study of the poisoning effect in the isomerization of (I) in the presence of catalytic amounts of added Na salts or of alkoxides formed in situ in the presence of alcohols such as (III).
ChemInform Abstract: Complex‐Induced Proximity Effects: Remote Lithiations of Carboxamides.
Authors: BEAK P. , HUNTER J. E. , JUN Y. M. , WALLIN A. P.
Published: May 2016

The reactions of the unsaturated amide (Ia) (= condition B)) provides the Li intermediate (III) which reacts with various electrophiles such as (IIa)‐(IId) or (VIa), (VIb) to give the products (V) and/or (IV), or (VIII), respectively.
ChemInform Abstract: Regioselective Deoxygenation of Chloramphenicol and of (1R,2R)‐(+)‐2Amino‐1‐phenyl‐1,3‐propanediol.
Authors: RAMAIAH P. , RAO A. S.
Published: May 2016

The N‐acylamino diol (Ia) reacts with 2‐acetoxybenzoyl chloride (II) to form the 1‐chloro‐3‐acetoxy derivative (IIIa).
ChemInform Abstract: Bi(3,5‐dimethyl‐5‐(hydroxymethyl)‐2‐oxomorpholin‐3‐yl) (DHM‐3 Dimer). A Water‐Soluble, One‐Electron Reducing Agent.
Authors: GAUDIANO G. , KOCH T. H.
Published: May 2016

The dimer (IV) mentioned in the title is prepared by irradiation of the dihydrooxazinone (III), obtained by cyclocondensation of the diol (I) with the ester (II).
ChemInform Abstract: Asymmetric Hydrogenation of Unsaturated Carboxylic Acids Catalyzed by BINAP‐Ruthenium(II) Complexes.
Authors: OHTA T. , TAKAYA H. , KITAMURA M. , NAGAI K. , NOYORI R.
Published: May 2016

The α,β‐unsaturated carboxylic acids (I) are hydrogenated in the presence of a chiral ruthenium catalyst, yielding the optically active saturated acids (II).
ChemInform Abstract: Selective Reactions of Isocyanatocarboxylic Chlorides with Silylated Alcohols and Amines: A Simple Synthesis of Isocyanatocarboxylic Acid Esters and Amides.
Authors: MORMANN W. , HISSMANN E.
Published: May 2016

The trimethylsilyl ethers (III), prepared from the alcohols (I), react with the isocyanates (IV) to give the isocyanato esters (V).
ChemInform Abstract: Selective Liquid‐Phase Hydrogenation of 2,6‐Dinitrotoluene with Platinum Catalysts.
Authors: KUT O. M. , YUECELEN F. + , GUT G.
Published: May 2016

An ethanolic solution of 2,6‐dinitrotoluene (I) is hydrogenated in the presence of commercial powder catalysts, such as Pt or Pd on C, or Pt on Al2O3.
ChemInform Abstract: A One‐Step Preparation of 4‐Bromomethyl‐2,3,5,6‐tetrabromophenol.
Authors: GUO W. , WU G.
Published: May 2016

Heating p‐cresol (I) with excess bromine in the presence of aluminum trichloride yields 4‐bromomethyl‐2,3,5,6‐tetrabromophenol (II) which is a starting material for the preparation of several flame retardants.
ChemInform Abstract: Three New Products from Methyl 3,4‐Diphenyl‐5‐nitro‐2‐furoate by Catalytic Reduction.
Authors: YAMAMOTO K. , TANAKA A. , ICHIKAWA M. , SWAMINATHAN S. , BRYAN G. T.
Published: May 2016

The diphenylnitrofuroate (I) is subjected to catalytic hydrogenation, yielding the hydroxylaminofuroate (II) as the main product, together with the aminofuroate (III) and minor amounts of the cyanobutyrate (IV).
ChemInform Abstract: Remote Electronic Control in the LiAlH4 Reduction of Tricyclic p‐Tolylsulfonylmethyl Enones.
Authors: KLUNDER A. J. H. , CRUL M. J. F. M. , HOUWEN‐CLAASSEN A. A. M. , KOOY M. G. , ZWANENBURG B.
Published: May 2016

The bicyclic sulfone (I) is reduced with lithium alanate or diisobutylaluminum hydride to give the olefin (II) or the alcohol (III).
ChemInform Abstract: Synthesis and Separation of Diastereomeric Imino Alcohol Derivatives of Chiral Phthalides: A Method for Assignment of Phthalide Absolute Configurations.
Authors: PIRKLE W. H. , SOWIN T. J.
Published: May 2016

The racemic lactones (I) are sulfurized with Lawesson's reagent to form the thio derivatives (II).
ChemInform Abstract: Highly Stereoselective Reactions of Carbanions of Dithiabicyclo(3.1.0)hexane Derivatives.
Authors: OKAZAKI R. , O‐OKA M. , AKIYAMA T. , INAMOTO N. , NIWA J. , KATO S.
Published: May 2016

The heterobicylic compounds (Va) and (Vb) are prepared from the cyclopropane (I) as shown in the scheme; the deuterated analogue (Vd) of the known tricyclus (Vc) is prepared analogously.
ChemInform Abstract: Heterocycles. Part 60. Condensation of 5‐Phenyl‐1,2,4‐triazole‐3‐thiol with Monochloroacetaldehyde.
Authors: SIMITI I. , MARIE A. , COMAN M. , POP R. D. , DEMIAN H. , MAGER S.
Published: May 2016

The triazolylthione (I) reacts with chloroacetaldehyde (II) to give (III) which cyclizes reversibly, forming the tetrahydrotriazolothiazole (IV).
ChemInform Abstract: Asymmetric Functionalization at a Prochiral Carbon Center by the Aid of Sulfinyl Chirality: A Selective Formation of 6‐Substituted (3R,Ss)and (3S,Ss)‐3‐Hydroxymethyl‐3,4‐dihydro‐5‐(p‐tolyl)sulfinyl‐2H‐pyrans.
Authors: IWATA C. , FUJITA M. , MORITANI Y. , SUGIYAMA K. , HATTORI K. , IMANISHI T.
Published: May 2016

The iodomethyl‐1,3‐dioxane (IV) and the chiral sulfones (VII), prepared as shown in the reaction scheme, are coupled and then cyclized to form the bicyclic sulfinyldioxanes (IX).
ChemInform Abstract: Phenyl Isothiocyanate‐Mediated Condensation of Aceturic/2‐Acetylaminocinnamic Acid with Aromatic Aldehydes.
Authors: JAIN A. , MUKERJEE A. K.
Published: May 2016

The benzaldehydes (I) undergo ring‐closure with 2‐(acetylamino)cinnamanilide (II) to give the 2‐styryl‐2‐imidazolin‐5‐ones (III) which are also prepared by reaction of 2‐(acetylamino)cinnamic acid (IX) with the aromatic aldehydes (I) and phenyl isothiocyanate (V).
ChemInform Abstract: Synthesis of New Benzofuranylpyridine and Benzofuranylpyrano(2,3‐c)pyrazole Derivatives.
Authors: HISHMAT O. H. , ABDEL GALIL F. M. , FARRAG D. S.
Published: May 2016

The benzofuranylmethylidenemalononitriles (Ia) and (Ib) react with the carbonyl compounds (II) under cyclization, producing the pyridine derivatives (III), (IV), or (V).
ChemInform Abstract: Synthesis of Indolizines Starting from Pyrylium Salts.
Authors: DINCULESCU A. , BALABAN T.‐S. , BALABAN A. T.
Published: May 2016

Trimethylpyrylium perchlorate (I) and the acetals (II) of aminoacetaldehyde produce the pyridinium salts (III) and (IVa).
ChemInform Abstract: Synthesis and Spectroscopic Investigations of 1,4‐Benzothiazepine Derivatives.
Authors: SZABO J. , BERNATH G. , KATOCS A. , FODOR L. , SOHAR P.
Published: May 2016

The sodium thiophenolate (I) reacts with 2‐bromoethylamine (II) to yield (III) which is acylated and then cyclized, forming the benzothiazepine derivatives (VI).
ChemInform Abstract: Convenient Preparation of Acyltrimethylsilanes from Carboxylic Acid Derivatives.
Authors: KANG J. , LEE J. H. , KIM K. S. , JEONG J. U. , PYUN C.
Published: May 2016

The acyl chlorides and anhydrides (II) react with the lithium tetrasilylaluminate (Ia) in the presence of copper(I) cyanide to produce the trimethylsilyl ketones (III).
ChemInform Abstract: Silicon Compounds and Its Homologues. Part 77. Unsaturated Silicon Compounds. Part 25. Reactivity of the Labile Silaethene Me2Si=C(SiMe3)2, Stored as Ph2C=NSiMe3 Adducts.
Authors: WIBERG N. , PREINER G. , WAGNER G. , KOEPF H. +
Published: May 2016

The silaethene (II), stored as the Ph2C=N(SiMe3) adduct (I) and regenerated from this at about 100 °C as a reaction intermediate, combines with a lot of reactants.
ChemInform Abstract: Pentaalkoxyphosphoranes in the Reaction of Alkylene (1,1,3‐Trihydroperfluoropropyl) Phosphites with Chloral and Bromal.
Authors: KONOVALOVA I. V. , OFITSEROV E. N. , SINYASHINA T. N. , MIRONOV V. F. , PUDOVIK A. N.
Published: May 2016

The cyclic phosphites (III), prepared from the chlorophosphites (I) and the tetrafluoropropanol (II), are coupled with the trihaloacetaldehydes (IV) to give mixtures of the spirophosphoranes (V) and (VI).
ChemInform Abstract: Complexes of Copper(II) with Substituted Benzylideneamines.
Authors: NAVARRO‐RANNINGER M. C. , ALVAREZ‐VALDES A. , CAMAZON M. J. , MASAGUER J. R.
Published: May 2016

CuCl2 reacts with the ligands in 1,2‐dichloroethane to yield the complexes (I) (no yields given).
ChemInform Abstract: Preparation of Two New Bis(2‐pyridyl)silane Ligands and the Copolymerization of MeSi(2‐pyridyl)2(CH=CH2) with Styrene and Divinylbenzene.
Authors: WRIGHT M. E.
Published: May 2016

2‐Lithiopyridine (II), generated in situ from 2‐bromopyridine (I), is coupled with the dichlorosilanes (III) to give the bis(2‐pyridyl)silanes (IV).
ChemInform Abstract: Synthesis and NMR Spectra of Platinum Compounds with Thiourea Derivatives.
Authors: ROCHON F. D. , BARIYANGA J. , DE LA CHEVROTIERE C.
Published: May 2016

The thiourea‐Pt(II) complexes (III) are prepared as shown and characterized by IR, 1H and 13C NMR spectra.
ChemInform Abstract: Liquid Secondary Ionization Mass Spectrometric Characterization of Two Synthetic Phosphotyrosine‐Containing Peptides.
Authors: GIBSON B. W. , FALICK A. M. , BURLINGAME A. L. , NADASDI L. , NGUYEN ANN CAC NGUYEN ANN CAC , KENYON G. L.
Published: May 2016

With the use of the protected amino acid (IV) the title peptides (V) and (VI) are prepared via solid‐phase synthesis and characterized by LSIMS.
ChemInform Abstract: A Convenient New Synthesis of Homoserine Lactone.
Authors: BALDWIN J. E. , NORTH M. , FLINN A.
Published: May 2016

L‐Asparaginic acid (Ia) is converted to the dibenzyl dicarboxylate (Ib) and then N‐protected with trityl chloride (III) to form (IV).
ChemInform Abstract: Synthesis of Oligosaccharide Structures Unique to Pituitary Glycoprotein Hormones.
Authors: VANDANA VANDANA , HINDSGAUL O. , BAENZIGER J. U.
Published: May 2016

The trisaccharide (VIe) and its sulfate ester (VIf) are synthesized: 1. The component (IVb) is prepared starting from the glucopyranose derivative (Ia) via the intermediates (Ib), (Ic), (IIIa), (IIIb), and (IVa).
ChemInform Abstract: Cycloadditions. Part 33. Stereospecific Synthesis and Stereochemical Structure Confirmation of Dumetorine.
Authors: AMARASEKARA A. S. , HASSNER A.
Published: May 2016

The acetoacetate (I) undergoes Reformatsky reaction with allyl bromide (II) to yield the hydroxyalkenoate (III).
ChemInform Abstract: Total Synthesis of Leukotriene B4 Analogues: 3‐Thia‐LTB4 and 3‐Thia‐20,20,20‐trifluoro‐LTB4.
Authors: GUINDON Y. , DELORME D.
Published: May 2016

The title compounds (XVIII) are prepared starting from the C‐furanosides (I) as masked dienic precursor of the intermediate (Xc).
ChemInform Abstract: The Formation and Structure of CVD W Films Produced by the Si Reduction of WF6
Authors: GREEN M. L. , ALI Y. S. , BOONE T. , DAVIDSON B. A. , FELDMAN L. C. , NAKAHARA S.
Published: May 2016

in the temp. range 210‐700 °C have been investigated by Rutherford backscattering spectroscopy and transmission electron microscopy.
ChemInform Abstract: Dry Etching of Silicon Materials in SF6 Based Plasmas. Roles of N2O and O2 Gas Additives.
Authors: TZENG Y. , LIN T. H.
Published: May 2016

The silicon etch rate has been measured as a function of gas feed composition (SF6/N2O and SF6/O2 mixtures), gas pressure, and RF power, and the etched surfaces have been characterized by XPS.
ChemInform Abstract: Reaction of Carbenes and Nitrenes with Azo Compounds
Authors: SUVOROV A. A. , KUZNETSOV M. A.
Published: May 2016

Review: (83 refs.
ChemInform Abstract: Concerning Potassium Arsenites in the Three‐Component System K2O‐As2O3‐H2O. Preparation and Crystal Structure of K3(HAs2O4)(As2O4)·3/2 H2O.
Authors: SHELDRICK W. S. , HAEUSLER H.‐J. +
Published: May 2016

Slow evaporation of H2O at 40 °C from a solution containing As2O3 and KOH yields the title compound.
ChemInform Abstract: On the Oxides A2PbO3 (A: K, Rb, Cs).
Authors: STOLL H. , HOPPE R.
Published: May 2016

The crystal structures of the title compounds have been reinvestigated (all particles "anisotropically" refined).
ChemInform Abstract: Characterization of TlCu7S4, a Crookesite Analogue.
Authors: BERGER R. A. , SOBOTT R. J.
Published: May 2016

The situation in the pseudo‐binary Tl2S‐Cu2S system has been clarified.
ChemInform Abstract: High Temperature Behavior of Unstable EuPd2Si2 and Reference MPd2Si2 Compounds (M: All Rare Earths and Alkaline Earths).
Authors: PALENZONA A. , CIRAFICI S. , CANEPA F.
Published: May 2016

All the title compounds have been prepared by annealing mixtures of the elements at 1150 K for ten days.
ChemInform Abstract: Ba4MgTa10O30 and Ba4NiTa10O30 Compounds Related to the Tetragonal Tungsten Bronze and the NaNb6O15F‐Type.
Authors: BRANDT R. , MUELLER‐BUSCHBAUM HK. +
Published: May 2016

The title compounds have been prepared by high temp. reaction of BaCO3, Ta2O5, and MgO (Ni‐oxalate, resp., 4:5:2, CO2 laser, 1300 °C, 3 d).
ChemInform Abstract: Theoretical and Spectroscopic Studies on Imino‐Carbon Palladated Pyridine‐2‐carbaldimines.
Authors: CROCIANI B. , GRANOZZI G.
Published: May 2016

Ab initio LCAO MO‐SCF calculations on the model compounds (I) and (II) indicate that the E‐trans conformation shown is favored over the E‐cis one by 16.9 kJ mol‐1 for (I) and by 25.0 kJ mol‐1 for (II).
ChemInform Abstract: Trifluoromethanesulfonic Acid as a Catalyst for the Ethylation of Benzene.
Authors: BOOTH B. L. , AL‐KINANY M. , LAALI K.
Published: May 2016

At room temp. and a pressure of ethene of 1 atm, anhydrous CF3SO3H is a more effective catalyst than AlCl3, FSO3H, and anhydrous H2SO4.
ChemInform Abstract: Studies on Chromone Derivatives. Novel 1,3 Dipolar Cycloadditions of 4‐Oxo‐1‐benzopyran‐3‐carbaldehyde Imines and Imine Oxides.
Authors: BARUAH A. K. , PRAJAPATI D. , SANDHU J. S.
Published: May 2016

The chromone imines (III) are prepared from 3‐formylchromone (I) and the aromatic amines (II).
ChemInform Abstract: Cyclocodimerization of 1,3‐Butadiene Derivatives with Non‐Activated Terminal Acetylenes Catalyzed by Cationic Rhodium(I) Complex.
Authors: MATSUDA I. , SHIBATA M. , SATO S. , IZUMI Y.
Published: May 2016

The 2‐substituted 1,3‐butadienes (I) are coupled with the terminal alkynes (II) in the presence of a Rh(I) catalyst, yielding a mixture of the dihydrobenzenes (III) ‐ (VI) and the benzenes (VII).
ChemInform Abstract: Activation Barriers in the α‐Cleavage Processes of Acetaldehyde.
Authors: MALAR E. J. P. , CHANDRA A. K.
Published: May 2016

The energy profiles for the decomposition of the lowest triplet state of acetaldehyde via reactions (1) Me‐CHO* → Me‐CO· + H· and (2) Me‐CHO* → Me· + CHO· are computed by using the recently developed SCF MO methods.
ChemInform Abstract: Photochemical Reactions of Nitrile Compounds. Part 2. Photochemistry of an α,β‐Unsaturated γ,δ‐Epoxy Nitrile and a γ,δ‐Cyclopropyl Nitrile.
Authors: ISHII K. , ABE M. , SAKAMOTO M.
Published: May 2016

Irradiations of the title nitriles (Ia) and (XIV) are investigated under various conditions.
ChemInform Abstract: DBP Ylides: Wittig Reagents for Synthesis of E‐Alkenes from Aldehydes.
Authors: VEDEJS E. , MARTH C.
Published: May 2016

Cyclization and lithiation of tetraphenylphosphonium bromide (I) yield the lithiodibenzophosphole (II) which reacts with 2 equivalents of the alkyl iodides (III) to form the ylides (IV).
ChemInform Abstract: Horner‐Wittig Reactions of β‐Aminoalkyl‐ and β‐N‐Acylaminoalkyldiphenylphosphine Oxides: Synthesis of N‐Allyl Amines and Amides and 5‐Diphenylphosphinoyl‐2‐phenyl‐5,6‐dihydro‐4H‐1,3‐oxazines.
Authors: CAVALLA D. , CRUSE W. B. , WARREN S.
Published: May 2016

The lithium derivatives of the amines (I) or the amide (VII) undergo Horner‐Wittig reaction with the aldehydes (II) or (VIII) to give mixtures of the erythro‐adducts (III) or (IX) and the threo‐adducts (IV) or (XI).
ChemInform Abstract: Reactions of Tertiary Allylamines with Dimethyl Acetylenedicarboxylate.
Authors: KANDEEL K. A. , VERNON J. M.
Published: May 2016

The reaction between the tertiary allylamines (I) and dimethyl acetylenedicarboxylate (II) in acetonitrile yields the 1:1‐adducts (III).
ChemInform Abstract: Alkane Functionalization on a Preparative Scale by Mercury Photosensitization.
Authors: BROWN S. H. , CRABTREE R. H.
Published: May 2016

Cyclohexane (I) reacts with methanol (IIa) or the trioxane (IIb) or the silane (IIc) under irradiation in the presence of mercury to yield the cross‐dimerization products (IV), together with the homodimers (III) and (V).
ChemInform Abstract: Epoxidation of Alkenes by Dimethyldioxirane: Evidence for a Spiro Transition State.
Authors: BAUMSTARK A. L. , MCCLOSKEY C. J.
Published: May 2016

Dimethyldioxirane (Ia) and its hexadeutero derivative (Ib) are employed as reagents for the epoxidation of the olefins (II) to give the oxiranes (IV) and the acetone (III).
ChemInform Abstract: Flash Vacuum Thermolysis of Oxazolidines: A New Way to Reactive Azomethine Ylides. Ring Closure to Aziridines.
Authors: JOUCLA M. , MORTIER J. , BUREAU R.
Published: May 2016

Flash vacuum pyrolysis of the oxazolidines (I) yields the aziridines (IV) via the intermediates (II).
ChemInform Abstract: Stereocontrolled Entry to 1‐Oxapenams and 1‐Oxacephems from Carbohydrates.
Authors: CHMIELEWSKI M. , KALUZA Z. , ABRAMSKI W. , BELZECKI C.
Published: May 2016

The carbohydrate derivatives (Ia) and (IIa), prepared from the corresponding glycals, are converted into the β‐lactams (IV) or (V) as outlined in the scheme.
ChemInform Abstract: Studies in Spiroheterocycles. Part 10. Reactions of Diazomethane with 3‐Aroylmethyleneindol‐2‐ones and Synthesis of Some Novel Fluorine Containing Spiro(cyclopropane‐1,3′(3H)‐indol)‐2′(1′H)‐ones
Authors: JOSHI K. C. , JAIN R. , ARORA S.
Published: May 2016

Base‐catalyzed aldol condensation of the indolediones (I) with the acetophenones (II) yields the 3‐hydroxy‐3‐phenacylindolinones (III) which are dehydrated to form the chalcones (IV).
ChemInform Abstract: Polarized Ketene Dithioacetals. Part 50. Reactions of α‐Aroyl‐α‐bromoketene Dithioacetals with Hydrazine Hydrate: Formation of Rearranged Pyrazoles.
Authors: SINGH G. , ILA H. , JUNJAPPA H.
Published: May 2016

Reaction of the dithioacetals (Ia)‐(Ic) according to A) yields the corresponding pyrazoles (II)‐(IV), whereas in the case of (Id) only type (II) and (IV) is formed.
ChemInform Abstract: Pyrylium Derivatives of N‐Aryl‐2‐pyrazolines.
Authors: ORLOV V. D. , VAKULA V. N. , GELLA I. M.
Published: May 2016

The reaction between the 2,6‐diarylsubstituted pyrylium perchlorates (I) and the 3‐substituted 1,5‐diphenyl‐2‐pyrazolines (II) proceeds at the para position of the N‐phenyl group to yield the novel title compounds (III), which are dyes absorbing between 564 and 640 nm.
ChemInform Abstract: Vinyl Monomers Containing 1,2‐Thia‐, ‐Selena‐, and ‐Tellurazole Systems, Their Polymers and Copolymers.
Authors: LUCCHESINI F. , BERTINI V. , DE MUNNO A. , POCCI M. , PICCI N. , LIGUORI M.
Published: May 2016

The Grignard compound (I) is coupled with acetic anhydride (II) to give 5‐hexen‐3‐yn‐2‐one (III) which is cyclized by reaction with hydroxylamine‐O‐sulfonic acid and chalcogenides, yielding the methylvinylchalcogenazoles (IV).
ChemInform Abstract: Oxygen Atom Transfer Reactions from Oxygen Containing Molecules to Carbonylmolybdenum(II) Complexes.
Authors: NAKAMOTO M. , TANAKA K. , TANAKA T.
Published: May 2016

The preparation of the tricarbonylmolybdenum(II) complexes (III) is described.
ChemInform Abstract: Polynuclear Metal Complexes with Bridging Carbene of Carbyne Ligands. Part 65. Reactions of the Complexes (FeW(μ‐CR)(CO)5(η‐C5Me5)) and (Fe2W(μ3‐CR)(μ‐CO)(CO)8(η‐C5Me5)) (R: C6H4Me‐4) with Alkynes R′C2R′ (R′: Me or Ph); Crystal Structures of (FeW(μ‐C(R)C(O)C(Me)C(Me))(CO)5(η‐C5Me5))·CH2Cl2 and (FeW(μ‐C(R)C(Et)C(H)C(Me)C(Me))(μ‐CO)(CO)3(η‐C5Me5)).
Authors: HEIN J. , JEFFERY J. C. , SHERWOOD P. , STONE F. G. A.
Published: May 2016

Both the title cluster (I) and (IV) react with PhC≡CPh (II) to give the insertion product (IIIa).
ChemInform Abstract: Synthesis and Reactivity of E,Z‐Butadiene Iron Tricarbonyl Complexes.
Authors: MOREY J. , GREE D. , MOSSET P. , TOUPET L. , GREE R.
Published: May 2016

The butadiene iron tricarbonyl complex (I) is converted to the isomeric alcohols (II) and (IV), the aldehyde (V), and the secondary carbinols (VII) and (VIII).
ChemInform Abstract: Thermal Investigation and Stereochemical Studies of Some Cyclic Diamine Complexes of Nickel(II), Zinc(II), and Cadmium(II) in the Solid State.
Authors: SINGH L. K. , MITRA S.
Published: May 2016

The complexes (I)‐(IV) are prepared from corresponding metal(II) thiocyanates and cyclic diamines in ethanol.
ChemInform Abstract: Preparation, Characterization, and Photophysical Properties of Covalently Linked Binuclear and Tetranuclear Ruthenium Bipyridyl Complexes.
Authors: WACHOLTZ W. F. , AUERBACH R. A. , SCHMEHL R. H.
Published: May 2016

Using the covalently linked bipyridine ligand (II), the complexes (III) which serve as starting material for the preparation of the complexes (IV) and (VI) are obtained.
ChemInform Abstract: Reactivity of PPh3 Towards Ru2Cl(O2CR)4 (R: Me, Ph) in Alcoholic Medium: A Novel Decarbonylation Process Mediated by a Diruthenium Compound.
Authors: MANDAL S. K. , CHAKRAVARTY A. R.
Published: May 2016

The title reaction in refluxing methanol, ethanol, and butanol is studied by IR and 1H NMR spectroscopy.
ChemInform Abstract: Structural, ESR and Electrochemical Properties of Two (Rh2(ap)4)+ Geometric Isomers (ap = 2‐anilinopyridinate). A True Mixed‐Valent Rhodium(II)‐Rhodium(III) Complex.
Authors: BEAR J. L. , LIU L.‐M. , KADISH K. M.
Published: May 2016

The compound (I) is obtained by a literature method.
ChemInform Abstract: Platinum(II) Complexes with Ligands (RO)2PCH2P(OR)2 (R: Me, Et, Ph, or C6H4Me‐4); Crystal Structure of cis,cis‐(Pt2Me4(μ‐(EtO)2PCH2P(OEt)2)2).
Authors: MANOJLOVIC‐MUIR L. , JOBE I. R. , MAYA B. J. , PUDDEPHATT R. J.
Published: May 2016

Reaction of the ligands (II) with the dimeric dimethyl‐Pt(II) compound (I) or with the monomeric dihalogeno‐Pt(II) compounds (V) gives the corresponding complexes (IIIa)‐(IIId) and (IVb), respectively.
ChemInform Abstract: Transformations of Heterocyclic N‐Oxides into Derivatives of α‐Heteroaryl Substituted α‐Amino Acids and Dipeptides.
Authors: STANOVNIK B. , DROFENIK I. , TISLER M.
Published: May 2016

The phenyloxazolidinone (II) reacts with the azine N‐oxides (I) to yield the oxazolinylideneazines (III).
ChemInform Abstract: Fungal Products. Part 13. Isolation and Structures of Dithiosilvatin (I) and Silvathione (II), Novel Dioxopiperazine Derivatives from Aspergillus silvaticus.
Authors: KAWAHARA N. , NOZAWA K. , NAKAJIMA S. , KAWAI K.
Published: May 2016

The structures of the title compounds are established by usual methods.
ChemInform Abstract: ′Ene′‐Type Reaction of the Pummerer Rearrangement Product Derived from 4‐Chlorophenyl Methyl Sulfoxide: Synthesis of Some Insect Sex Pheromones.
Authors: ISHIBASHI H. , KOMATSU H. , IKEDA M.
Published: May 2016

The ene‐type reaction of the thionium ion generated from (III) with olefins (IV) yields the sulfides (V), giving the dienes (VI) following desulfuration.
α‐Helical Structures of Oligopeptides with an Alternating l‐Leu‐Aib Segment
Authors: Demizu Yosuke , Okitsu Koyo , Yamashita Hiroko , Doi Mitsunobu , Misawa Takashi , Oba Makoto , Tanaka Masakazu , Kurihara Masaaki
Published: May 2016

We investigated the preferred conformations of l‐Leu‐Aib‐alternating peptides, Boc‐(l‐Leu‐Aib)n‐OMe (n = 1: 1, 2: 2, 3: 3, 4: 4, 5: 5), in solution and in the crystalline state. Peptides that contain more than six amino acid residues fold into right‐handed (P) helical structures. Specifically, hexapeptide 3 forms a (P) 310‐helix, and octapeptide 4 and decapeptide 5 form (P) α‐helices as their preferred conformations in solution. In the crystalline state, both octapeptide 4 and decapeptide 5 fold into (P) α‐helices.
Empirical Sediment Transport Models Based on Indoor Rainfall Simulator and Erosion Flume Experimental Data
Authors: Aksoy Hafzullah , Eris Ebru , Tayfur Gokmen
Published: May 2016

Land degradation processes start with accelerated runoff and sediment delivery. In this study, rainfall‐runoff induced sediment transport is investigated using data from an indoor laboratory experimental setup consisting of a rainfall simulator and an erosion flume. The data are analysed to develop empirical models using sediment discharge, slope, flow discharge, rainfall intensity and sediment size. Fine and medium sands are considered as bare soil in experiments. Four rainfall intensities (45, 65, 85 and 105 mm h−1) are applied with combinations of lateral and longitudinal slopes of 5%, 10%, 15% and 20%. Eighty experiments are conducted. Flow is measured, and sediment within flow is separated and weighted. Experimental data are used for developing empirical models through multiple regression with parameters optimized by genetic algorithm. Results show that slope is the main contributing variable to the sediment transport over hillslopes. Accommodating variables among slope, rainfall intensity, flow discharge and median diameter of sediment as independent variables, one‐variable, two‐variable and four‐variable models are developed considering also that higher number of parameters increases the performance of the model with higher cost of parameterization. Copyright © 2016 John Wiley & Sons, Ltd.