bluuebunny/crossref_metadata_2025 huggingface dataset:
ChemInform Abstract: Reaction of 5‐Substituted 2‐Methoxy‐1,4‐quinones with Boron Tribromide.
Authors: GARST M. E. , FRAZIER J. D.
Published: May 2016

The methoxyquinones (Ia) ‐ (Id) react consecutively with boron tribromide and acetic anhydride to give the reduction products (II) and the benzoxocins (III).
ChemInform Abstract: Investigations of Pyrane Derivatives. Part 118. Oxabenzomorphanes: Synthesis, Reactions, and ZNS Activity of 2,6‐Methano‐1‐benzoxocins.
Authors: EIDEN F. , GMEINER P.
Published: May 2016

Reaction of the (hydroxyaryl)ethylketones (I) with the acetoacetates (II) in the presence of bases yields the tricyclic ketones (IV) or the corresponding enol derivatives (V) via the intermediate cyclohexenones (III).
ChemInform Abstract: Chemistry of N‐Heterocyclic Sulfur Compounds. Reaction of 2,5‐Dimercapto‐1,3,4‐thiadiazoles with 1,ω‐Dibromoalkanes. Synthesis of Tetrathia‐((n + 2).(n + 2))(2,5)‐1,3,4‐thiadiazolophanes and Dithia‐((n + 1).(n + 1))(3,5)‐1,3,4‐thiadiazolinophanedithiones.
Authors: PAPPALARDO S. , BOTTINO F. , TRINGALI C.
Published: May 2016

Reaction of the dimercaptothiadiazole (I) with the dibromoalkanes (II) gives certain products due to heterocyclization both via S,S‐(III) and via N,S‐(IV).
ChemInform Abstract: Alkylation and Silylation of the Aluminum Enolates Generated by Hydroalumination of α,β‐Unsaturated Carbonyl Compounds.
Authors: TSUDA T. , SATOMI H. , HAYASHI T. , SAEGUSA T.
Published: May 2016

The aluminum enolates (III) are obtained as intermediates in the reaction of the unsaturated carbonyl compounds (I) with diisobutylaluminum hydride (II) in the presence of catalytic amounts of methylcopper.
ChemInform Abstract: Stoichiometric Generation of 3‐Siloxyallenyllithium and Its Reactions with Electrophiles.
Authors: MATSUOKA R. , HORIGUCHI Y. , KUWAJIMA I.
Published: May 2016

The propargylic alcohol (I) reacts with butyllithium to give the allene (II) which is further lithiated and then substituted with the halides (IV), yielding the allenyl silyl ethers (V).
ChemInform Abstract: Synthesis of 5‐Substituted Pyrimidines Through ortho‐Directed Lithiation Reactions.
Authors: WADA A. , YAMAMOTO J. , KANATOMO S.
Published: May 2016

Lithiation of the pyrimidines (I) and (VI) with the lithium piperidide (II) and subsequent reaction with the electrophiles (III) form the 5‐substituted pyrimidines (IV) and (VII).
ChemInform Abstract: An Efficient Synthesis of γ‐Amino‐β‐ketoalkylphosphonates from α‐Amino Acids.
Authors: CHAKRAVARTY P. K. , COMBS P. , ROTH A. , GREENLEE W. J.
Published: May 2016

The amino acid esters (I) react with the phosphonates (II) to give the ketophosphonates (III) which are split by trimethylsilyl bromide to yield the γ‐amino‐β‐ketophosphonates (IV).
ChemInform Abstract: Transition‐Metal Peroxo Complexes. Part 7. Molybdenum(VI) and Tungsten(VI) Carboxylato Peroxo Complexes, and the X‐Ray Crystal Structure of K2(MoO(O2)2(glyc))·2 H2O.
Authors: DENGEL A. C. , GRIFFITH W. P. , POWELL R. D. , SKAPSKI A. C.
Published: May 2016

Depending on the metal/carboxylate ratio and the pH of the reaction mixture, the new complexes (Ia)‐(Ic), (II) and (III) are obtained in the presence of H2O2.
ChemInform Abstract: Chemistry of Polynuclear Metal Complexes with Bridging Carbene or Carbyne Ligands. Part 54. Compounds Derived from (W(CC6H4Me‐4)(CO)2(η‐C5Me5)) with Bonds Between Tungsten and Iron, Cobalt, or Nickel; Crystal Structure of (FeW(μ‐C(C6H4Me‐4)C(O)O)(CO)5(η‐C5Me5)).
Authors: DELGADO E. , HEIN J. , JEFFERY J. C. , RATERMANN A. L. , STONE F. G. A. , FARRUGIA L. J.
Published: May 2016

The reaction of (I) with Fe compounds (II) or (IV) leads to different products.
ChemInform Abstract: Chemistry of Polynuclear Metal Complexes with Bridging Carbene or Carbyne Ligands. Part 55. Coupling of Methylene and Alkylidyne Groups at a Trimetal Centre; Crystal Structures of (Ru2W(.mu±sigma.:η‐trans‐CH=C(H)R)(μ‐CO)(CO)3(η‐C5H5)2(η‐C5Me5# ))·CH2Cl2 and (Ru2W(μ3‐CCH2R)(μ‐CO)3(CO)(η‐C5H5)3) (R: C6H4Me‐4).
Authors: DAVIES D. L. , PARROTT M. J. , SHERWOOD P. , STONE F. G. A.
Published: May 2016

(Ia) and (Ib) react with (II) to give mixtures of the corresponding trimetal complexes (III) and (IV).
ChemInform Abstract: Chemistry of Polynuclear Metal Complexes with Bridging Carbene or Carbyne Ligands. Part 58. Some Reactions of the Compounds (MW(μ‐CC6H4Me‐4)(CO)3(η5‐C9H7)(η5‐C2B9H9Me2)) (M: Mo or W); Crystal Structures of the Complexes (W2(μ‐CC6H4Me‐4)(CO)2(L)(η5‐C9H7)(η5‐C2B9H9Me2)) (L: N2C(C6H4Me‐4)2 or O).
Authors: HOWARD J. A. K. , JAMES A. P. , DE M. JELFS A. N. , NUNN C. M. , STONE F. G. A.
Published: May 2016

The compounds (I) react with the diazoalkanes (II) to afford the complexes (IIIa)‐(IIId).
ChemInform Abstract: Preparation of Ferricenium Salts with Less Nucleophilic Anions of the EF6‐‐Type (E = P, As, Sb).
Authors: SCHUMANN H.
Published: May 2016

Ferrocene (I) is converted to the ferricenium salts (III) by oxidation with aqueous hexafluorophosphate (IIa) or hexafluoroantimonate (IIb).
ChemInform Abstract: Reactions of Copper(II) with (S2P(OR)2)‐ (R: Et or iPr) and Single‐Crystal X‐Ray Studies of Cu(S2P(OEt)2)·bipy and Cu(S2P(OEt)2)·2 PPh3.
Authors: DREW M. G. B. , FORSYTH G. A. , HASAN M. , HOBSON R. J. , RICE D. A.
Published: May 2016

The title reactions in aqueous solutions give the Cu(II) complexes (I), which exist in the solvent‐dependent equilibrium shown in the scheme.
ChemInform Abstract: The Heteronuclear Cluster Chemistry of the Group 1B Metals. Part 3. Synthesis, Structures, and Chemical Properties of the Trimetallic Hexanuclear Group 1B Metal Cluster Compounds (MM′Ru4(μ3‐H)2(CO)12(PPh3)2) (M: Cu, M′: Ag or Au; M: Ag, M′: Au). X‐Ray Crystal Structure of the Complex (AgCuRu4(μ3‐H)2(CO)12(PPh3)2)·CH2Cl2.
Authors: FREEMAN M. J. , ORPEN A. G. , SALTER I. D.
Published: May 2016

The novel trimetallic clusters (IV) are prepared in the 1:1:1 molar reaction shown in the scheme.
ChemInform Abstract: Photoactivation of Methane by η5‐Cyclopentadienyl and Substituted η5‐Cyclopentadienyl Group 8 Metal Dicarbonyl Complexes, (M(η5‐C5R5)(CO)2) (M: Rh or Ir, R: H or Me), and Dicarbonyl(η5‐indenyl)iridium: A Matrix Isolation Study.
Authors: REST A. J. , WHITWELL I. , GRAHAM W. A. G. , HOYANO J. K. , MCMASTER A. D.
Published: May 2016

Photolysis of the complexes (I) in methane matrices leads primarily to the complexes (III).
ChemInform Abstract: Reactions of Planar Pentadentate Ligands with Palladium and Platinum Chlorides. Crystal Structures of cis‐Dichlorobis(N′‐isopropylidenebenzohydrazide)platinum(II) and the Cyclopalladated Dianion of N′,N′′′‐(Pyridine‐2,6‐diyldiethylidyne)bis(benzohydrazide).
Authors: PALENIK G. J. , GIORDANO T. J.
Published: May 2016

The reaction of the planar pentadentate ligand (I) with PtCl2 in Me2CO leads to the displacement of the 2,6‐diacetylpyridine group by acetone with the formation of a new ligand in the complex (IV).
ChemInform Abstract: Synthesis of Four Sesquiterpenoid Lactone Skeletons, Germacranolide Elemanolide, Cadinanolide, and Guaianolide, from a Single Photoadduct.
Authors: LANGE G. L. , LEE M.
Published: May 2016

Starting with the photoadduct (Ia), obtained from cyclobutenecarboxylic acid, several sesquiterpenoid lactones are prepared.
ChemInform Abstract: Retinoids. Part 6. Preparation of Alkyl‐ and Trimethylsilyl‐Substituted Retinoids via Conjugate Addition of Cuprates to Acetylenic Esters.
Authors: ERNST L. , HOPF H. , KRAUSE N.
Published: May 2016

The acetylenic ester (Ib), prepared from β‐ionone via (Ia), reacts selectively with the organocuprates (III) to form the adducts (IV), which are converted to the modified retinoids (VI).
ChemInform Abstract: Tandem Radical Cyclization. Intramolecular Mukaiyama Aldolization Approach to Forskolin.
Authors: HUTCHINSON J. H. , PATTENDEN G. , MYERS P. L.
Published: May 2016

Starting with the bromoacetal (I), the trans‐decalin derivative (IV) is prepared via the intermediates (II) and (III).
ChemInform Abstract: Fe(II)‐Induced Fragmentation Reaction of γ‐Hydroperoxy‐α,β‐enones. Part 1. Synthesis of 13(14 → 8)‐abeo‐Steroids.
Authors: CANONICA L. , DANIELI B. , LESMA G. , PALMISANO G. , MUGNOLI A.
Published: May 2016

The hydroperoxide (III), obtained in high yield from (I) or, more simply, by autoxidation of (II), is treated with FeSO4 to afford the major product (IV) in a tandem β‐fission/reductive alkylation.
ChemInform Abstract: Synthesis of Cortexolone Phosphate.
Authors: RYAKHOVSKAYA M. I. , POPOVA E. V. , GRINENKO G. S.
Published: May 2016

Cortexolone phosphate (IIIa) and its dehydro derivative (IIIb) are synthesized from 17‐hydroxyprogesterone (Ia).
ChemInform Abstract: A Method for the Preparation of Stereochemically Defined ψ(CH2O) Pseudodipeptides.
Authors: TENBRINK R. E.
Published: May 2016

The silyl derivative (Ib) of L‐leucinol (Ia) is coupled with the (R)‐bromocarboxylic acids (IIa) and (IIb) to give the amides (III) which are cyclized by treatment with sodium hydride.
ChemInform Abstract: Cyclitol Reactions. Part 16. Synthesis of Valiolamin Derivatives.
Authors: PAULSEN H. , MIELKE B. , VON DEYN W.
Published: May 2016

The valiolamin (→ (XIII)) derivative (VIIb) is synthesized starting from the enone (I) via the intermediates shown in the scheme.
ChemInform Abstract: A Short Stereoselective Synthesis of the Alkaloid Vincamine.
Authors: GENIN D. , ANDRIAMIALISOA R. Z. , LANGLOIS N. , LANGLOIS Y.
Published: May 2016

The dihydro‐β‐carboline (I) reacts with the dienecarboxylate (II) to produce a mixture of the double bond isomers (III) which are ethylated, yielding (V), together with the by‐product (IV).
ChemInform Abstract: C(2)‐Functionalized Tryptophans from 3‐Acetoxyindoles and Their Possible Implication in Indole Alkaloid Biosynthesis.
Authors: PLATE R. , THEUNISSE A. W. G. , OTTENHEIJM H. C. J.
Published: May 2016

The 3‐acetoxyindoles (I) react with the nitrosoolefin, generated in situ from the oxime (II), and Na2CO3 to give the cycloadducts (III), which are treated with the thiols (IV) to produce the indole derivatives (V).
ChemInform Abstract: Synthesis of Guanine 7‐Oxide, an Antitumor Antibiotic from Streptomyces Species.
Authors: NOHARA F. , NISHII M. , OGAWA K. , ISONO K. , UBUKATA M. , FUJII T. , ITAYA T. , SAITO T.
Published: May 2016

Phenacyl bromide (I) is converted to the phenacylamines (III) which react with the pyrimidone (IV) to yield the N‐disubstituted products (V).
ChemInform Abstract: Nucleosides and Nucleotides. Part 27. Solid Phase Synthesis of a Tridecanucleoside Dodecaphosphate Containing the Unnatural Base 4‐Amino‐2(1H)‐pyridinone and of a Octanucleoside Heptaphosphate for the Determination of the DNA‐Polymerase Specificity.
Authors: CHARCZUK R. , TAMM C.
Published: May 2016

The tridecanucleoside dodecaphosphate (I), incorporating the modified nucleoside Z (II), and the octanucleoside heptaphosphate (III) are synthesized by the solid phase method using the triester method.
ChemInform Abstract: Isolation and Synthesis of 1,7‐Dioxaspiro(5.5)undecane and 1,7‐Dioxaspiro(5.5)undecan‐3‐ and ‐4‐ols from the Olive Fly (Dacus oleae).
Authors: BAKER R. , HERBERT R. H.
Published: May 2016

The major component of the sex pheromone of the olive fly is shown to have the structure (II); additionally two minor components (V) and (VIII) are isolated from the rectal glands of the female olive fly.
ChemInform Abstract: Nature of Conjugation in Hydronitrogens and Fluoronitrogens. Excessive Flow of Unshared Electron Pairs into σ‐Bonds.
Authors: INAGAKI S. , GOTO N.
Published: May 2016

Ab initio molecular orbital calculations are used to investigate the geometric and electronic structures of some conjugated NmHn and NmFn compounds (e.g.
ChemInform Abstract: A Quantitative Approach to Host‐Guest Interactions for Matrix‐Isolated Alkali‐Metal Salts of Hexafluoroanions and Perchlorates.
Authors: BEATTIE I. R. , MILLINGTON K. R.
Published: May 2016

The IR spectra of CsNbF6 (I) in a range of matrix gases are reported in the Nb‐F stretching region and they are compared with the corresponding spectra of CsClO4 (II).
ChemInform Abstract: On the Crystalline Phases of the Systems M(I)2O‐Al2O3‐H2O (M(I): K, Na).
Authors: GESSNER W. , WEINBERGER M. , MUELLER D. + , NI L. P. , SHALYAPINA O. B.
Published: May 2016

In the title system with M(I): K the hydrates (Ia)‐(Ic) exist.
ChemInform Abstract: Identification and Structural Implications of the 90 K Superconducting Phase.
Authors: STEINFINK H. , SWINNEA J. S. , SUI Z. T. , HSU H. M. , GOODENOUGH J. B.
Published: May 2016

The phase relations of Cu containing compounds in the Y2O3‐BaO‐CuO system are determined at 925‐1000 °C and the stable ternary phases are found to be Y2Cu2O5, Y2BaCuO5, YBa2Cu3O8‐y and BaCuO2.
ChemInform Abstract: Isothermal Liquid Phase Epitaxial Growth of Mercury Cadmium Telluride.
Authors: FLEMING J. G. , STEVENSON D. A.
Published: May 2016

Mercury cadmium telluride epilayers have been grown by a Hg‐ or Te‐rich isothermal liquid phase growth technique that is described in detail.
ChemInform Abstract: Uniformly Thick Selective Epitaxial Silicon
Authors: PAGLIARO R. JUN. , CORBOY J. F. , JASTRZEBSKI L. , SOYDAN R.
Published: May 2016

has been grown on a Si wafer by CVD selective epitaxy with SiO2 mask openings to the substrate of various dimensions and with various Si/SiO2 area ratios.
ChemInform Abstract: Concentrated Aqueous Solutions and Liquid Hydrates of Zinc Chloride: A Study of Their Solvent Behaviour Using Intershell, Charge‐Transfer, and d‐d Absorption Spectra.
Authors: DUFFY J. A. , WOOD G. L.
Published: May 2016

The UV‐VIS spectra of Tl+, Pb2+, Co2+, Ni2+, VO2+, and Fe3+ are recorded in aqueous ZnCl2 solutions of varying salt content.
ChemInform Abstract: Raman and Resonance‐Raman Studies of Platinum Group Tetrathiomolybdates and Tetrathiotungstates,
Authors: CLARK R. J. H. , WALTON J. R.
Published: May 2016

(M'(MS4)2)2‐ with M': Ni, Pd, Pt and M: Mo, W. The bands assigned to the ν(M‐Sb), ν(M‐St) and ν(M'‐Sb) (b: bridging, t: terminal) fundamentals all show resonance enhancement, and overtone progressions are observed in the resonance‐Raman spectra.
ChemInform Abstract: Magnetic Exchange Interactions in Perovskite Solid Solutions. Part 8. A Study of the Solid Solution SrFe1‐xCoxO3‐y by 57Fe Moessbauer Spectroscopy
Authors: GIBB T. C.
Published: May 2016

and X‐ray powder diffraction.
ChemInform Abstract: A Study of the Optimal Conditions for the Development of Preferred Oriented Platinum Surfaces by Means of Fast Square Wave Potential Perturbations
Authors: TRIACA W. E. , KESSLER T. , CANULLO J. C. , ARVIA A. J.
Published: May 2016

has been carried out by measuring changes in the voltammetric response of polycrystalline Pt as a function of the characteristics of the applied fast repetitive square wave potential signal (RSWPS).
ChemInform Abstract: Kinetics of Palladium Reduction at Particulate TiO2 Photocatalysts.
Authors: WHITE J. R. , O'SULLIVAN E. J. M.
Published: May 2016

It is shown that the preparation of a thin film of TiO2 by hydrolysis of Ti alkoxides (applied to SiO2 substrates by spin coating) results in an array of particulate TiO2, rather than a continuous film.
ChemInform Abstract: Photophysical and Photochemical Properties of Some Fluorescent Derivatives of Vitamin B1.
Authors: MARCINIAK B.
Published: May 2016

Absorption and emission spectra, depopulation kinetics of the lowest excited singlet and triplet states and acid‐base equilibria of two fluorescent vitamin B1 derivatives, the products (I) and (II) of the reaction of N‐methylated vitamin B1 with cytidine and adenosine, resp., are investigated.
ChemInform Abstract: Crystal Disorder and Triboluminescence: Triethylammonium Tetrakis(dibenzoylmethanato)europate.
Authors: SWEETING L. M. , RHEINGOLD A. L.
Published: May 2016

Two crystal modifications of the title compound exist: a triboluminescent form from methanol and a nontriboluminescent form from CH2Cl2.
ChemInform Abstract: Pyrimidine Derivative Complexes: Spectroscopy, Thermal Behavior and Crystal Structure of μ‐Dichloro‐μ‐sulfur‐chloro(4,6‐diamino‐1,2‐dihydro‐2‐thiopyrimidine‐N3,S2# )cadmium(II) Monohydrate.
Authors: ROMERO‐MOLINA M. A. , GUTIERREZ‐VALERO M. D. , LOPEZ‐GARZON R. , SALAS‐PEREGRIN J. M. , ARRIORTUA M. I. , ZUNIGA F. J.
Published: May 2016

The title complex (I) crystallizes in the space group I41cd with Z=16.
ChemInform Abstract: Anthracycline‐Copper(II) Complexes: Structure‐Dependent Coordination Pattern as Evidenced by ESR.
Authors: MORAZZONI F. , GERVASINI A. , MALATESTA V.
Published: May 2016

The Cu(II) coordination properties of different anthracycline antitumor agents are studied by ESR spectroscopy.
ChemInform Abstract: Structural and Molecular Mechanics Studies of Bis(dibutyl phosphato)aquastrontium‐18‐Crown‐6 and Analogous Alkaline‐Earth‐Metal Complexes.
Authors: BURNS J. H. , KESSLER R. M.
Published: May 2016

The stability of the title complex is compared with analogous real and hypothetical alkaline‐earth‐metal complexes by use of molecular mechanics calculations.
ChemInform Abstract: Electro‐Initiated (2 + 2 + 2) Cycloaddition of Molecular Oxygen, Olefin, and 1,3‐Diketone.
Authors: YOSHIDA J. , SAKAGUCHI K. , ISOE S. , HIROTSU K.
Published: May 2016

2‐Methylcyclopentane‐1,3‐dione (I) gives the formal (2 + 2 + 2)cycloadducts, i.e. cyclic peroxides, during electrochemical oxidation in the presence of the olefins (II) in an oxygen atmosphere.
ChemInform Abstract: Stereoelectronic Effects and Chiral Recognition: A Natural System of Relationships Between Chiral Compounds Based on Selectivities in the Formation of Acetals.
Authors: NOE C. R. , KNOLLMUELLER M. + , GOESTL G. + , OBERHAUSER B. , VOELLENKLE H. +
Published: May 2016

In accordance with the enantiomer selectivity (b (bulky)‐pl (planar)‐H) rule the reaction of the acetals (I) and (II) yields predominantly the self‐condensation products (III) and (IV).
ChemInform Abstract: Quantitative Analyses of Biochemical Kinetic Resolution of Enantiomers. Part 2. Enzyme‐Catalyzed Esterifications in Water‐Organic Solvent Biphasic Systems.
Authors: CHEN C.‐S. , WU S.‐H. , GIRDAUKAS G. , SIH C. J.
Published: May 2016

New quantitative expressions, which relate the kinetic and thermodynamic parameters that govern the stereospecificity of enzyme‐catalyzed resolutions of enantiomers in biphasic aqueous‐organic media, are developed.
ChemInform Abstract: Dependence of the Stereochemistries of Intramolecular (8 + 2) Cycloadditions of Alkenylheptafulvenes on Tetraenophile Stereochemistry.
Authors: LIU C. Y. , HOUK K. N.
Published: May 2016

The cycloheptatrienylcyanoacetate (I) is converted to the acetal (III).
ChemInform Abstract: Radical Cyclization to Fluorinated Double Bonds: 5‐Exo Ring Closure of Bromoacetals Derived from Fluoroallyl Alcohols.
Authors: MORIKAWA T. , NISHIWAKI T. , IITAKA Y. , KOBAYASHI Y.
Published: May 2016

The bromoacetals (IV), prepared from (I) in the manner outlined, cyclize via radical formation to yield the tetrahydrofurans (V).
ChemInform Abstract: Azide Ion Trapping of the Intermediate in the Bamberger Rearrangement. Lifetime of a Free Nitrenium Ion in Aqueous Solution.
Authors: FISHBEIN J. C. , MCCLELLAND R. A.
Published: May 2016

In the Bamberger rearrangement of the hydroxylamine (I) the expected rearranged aminophenol (III) is formed in greater than 96% yield.
ChemInform Abstract: Disproportionation‐Combination Rate Constant Ratios for Haloalkyl Radicals: Evidence for Heterogeneous Disproportionation.
Authors: HOLMES B. E. , RAKESTRAW D. J.
Published: May 2016

Disproportionation‐combination rate constant ratios kd/kc are determined for R· + R‐CH2‐CH·‐Cl and for the auto disproportionation‐combination of the latter radicals, R: CF3, CF2CF3, and CF2CF2CF3.
ChemInform Abstract: Hydrolytic Selenoxide Elimination Reaction for the Preparation of 2‐Chloro‐1‐olefins.
Authors: ENGMAN L.
Published: May 2016

The terminal alkenes (I) react consecutively with phenylselenenyl chloride (II) and sulfuryl chloride to produce the 2‐chloroalkylphenyl selenium dichlorides (III) which undergo hydrolytic selenoxide elimination, yielding the 2‐chloroalkenes (IV).
ChemInform Abstract: Reactivity of 4‐Amino‐2‐benzyl‐2,3‐dihydro‐3‐oxo‐1,2,5‐thiadiazole 1,1‐Dioxide Toward Amines: Synthesis of Potential Histamine H2‐Receptor Antagonists.
Authors: ARAN V. J. , RUIZ J. R. , STUD M.
Published: May 2016

The reaction of the title compound (II) with sodium or ammonium hydroxides yields the corresponding ring‐opened derivatives (I) or (III).
ChemInform Abstract: Simultaneous Catalytic Activation of CO2 and NH3 in the Reaction with Butadiene Induced by Palladium Complexes.
Authors: DZHEMILEV U. M. , KUNAKOVA R. V. , SIDOROVA V. V.
Published: May 2016

The Pd‐catalyzed reaction of butadiene (I) with ammonia and carbon dioxide gives mixtures of the octadienyl formamides (II) and (III), depending on the reaction conditions.
ChemInform Abstract: Copper Catalyzed Reactions of Di‐tert‐butyl Peroxide: Oxidative Carbonylation of Alcohols to give Dialkyl Carbonates, Oxalates, or Succinates.
Authors: MORRIS G. E. , OAKLEY D. , PIPPARD D. A. , SMITH D. J. H.
Published: May 2016

The dialkyl carbonates (IV) and/or the dialkyl oxalates (VI) are synthesized from the alcohols (I) and carbon monoxide (II) using di‐tert‐ butyl peroxide (III) as an oxidant.
ChemInform Abstract: Synthesis of Unsaturated Sulfides by Cross‐Coupling of Grignard Reagents with Allylic Electrophiles Under Simultaneous Insertion of Elemental Sulfur in the Metal‐Carbon Bond.
Authors: DZHEMILEV U. M. , GRIBANOVA E. V. , IBRAGIMOV A. G.
Published: May 2016

The Pd‐catalyzed cross‐coupling reaction of isoprenylmagnesium bromide (II) with the allyl compounds (III) gives the carbinol (I).
ChemInform Abstract: The Pagodane Route to Dodecahedranes. Thermal, Reductive, and Oxidative Pagodane Rearrangements.
Authors: FESSNER W.‐D. , MURTY B. A. R. C. , PRINZBACH H.
Published: May 2016

In the search for pathways leading to dodecahedrane (I), the isomeric prototype (1.1.1.1)pagodane (II) as a possible precursor is subjected to thermolysis in benzene or EtOH in the temp. range 600‐750 °C but only naphthalene is produced in up to 60% yield (discussion of the decay pathway).
ChemInform Abstract: One‐ and Two‐Electron Oxidations of Pagodanes and Bissecododecahedradienes. Unusually Persistent Radical Cations.
Authors: PRINZBACH H. , MURTY B. A. R. C. , FESSNER W.‐D. , MORTENSEN J. , HEINZE J. , GESCHEIDT G. , GERSON F.
Published: May 2016

Voltammetric oxidation of (1.1.1.1)pagodane (Ia) and its dienic isomer (IIIa) in CH2Cl2 and in SO2 (with (Bu4N)+PF6‐) yields a radical cation, the presumed structure (IIa) of which is in accord with ESR data.
ChemInform Abstract: Reaction of Substituted Nitrosobenzenes with Formaldehyde.
Authors: KRONJA O. , MATIJEVIC‐SOSA J. , URSIC S.
Published: May 2016

The nitrosobenzenes (I) are coupled with formaldehyde (II) in an aqueous acidic medium, yielding the N‐phenylhydroxamic acids (III).
ChemInform Abstract: Synthesis and Biological Activities of 2,3‐Dimethyl‐1,4‐benzoquinones Having Alkylthio and Arylthio Side Chains.
Authors: MORI K. , TAKAHASHI K. , KISHI T. , SAYO H.
Published: May 2016

Reaction of the benzoquinone (I) with the thiols (II) and subsequent oxidation produce the thio derivatives (III).
ChemInform Abstract: The Base‐Catalyzed Cyclization of ω‐Epoxy 1,1‐Bissulfones. Reactivity and Selectivity as a Function of Ring Size.
Authors: BENEDETTI F. , FABRISSIN S. , GIANFERRARA T. , RISALITI A.
Published: May 2016

The terminal bis(sulfonyl)alkyl epoxides (I) undergo base‐catalyzed cyclization, producing the hydroxymethylcycloalkanes (II) and/or the cycloalkanols (III).
ChemInform Abstract: 1,2,3,5,8,8a‐Hexahydronaphthalene from 1,2‐Cyclohexadiene.
Authors: CHRISTL M. , SCHRECK M.
Published: May 2016

The dibromide (I) is transformed to the intermediate (II) which reacts with the dienes (III) or (VI) via (2 + 2) cycloaddition and thermolysis to give the hexahydronaphthalenes (V) or (IX).
ChemInform Abstract: The Reaction of Acetylenes with Compounds Containing Fe‐Aryl Bonds. A Convenient and Novel Synthesis of Indenones.
Authors: BUTLER I. R. , CULLEN W. R. , LINDSELL W. E. , PRESTON P. N. , RETTIG S. J.
Published: May 2016

Reaction of the organo‐iron compounds (I) with the acetylenes (II) and (VII) produces the indenones (III), (IV), and (VIII).
ChemInform Abstract: Efficient Synthetic Method for Ethyl (+)‐(2S,3S)‐3‐((S)‐3‐Methyl‐1‐(3‐ methylbutylcarbamoyl)butylcarbamoyl)‐2‐oxiranecarboxylate (EST), a New Inhibitor of Cysteine Proteinases.
Authors: TAMAI M. , YOKOO C. , MURATA M. , OGUMA K. , SOTA K. , SATO E. , KANAOKA Y.
Published: May 2016

The title compound (VI) is synthesized from the optically pure oxiranedicarboxylic acid (I) as shown in the reaction scheme.
ChemInform Abstract: Preparation of Unstable 3‐Alkylidenefurans by the Palladium‐Catalyzed Reaction of α‐Alkynyl Epoxides with β‐Keto Esters.
Authors: MINAMI I. , YUHARA M. , TSUJI J.
Published: May 2016

The alkynyl epoxides (I) are coupled with methylacetoacetate (III) in the presence of a Pd catalyst to give the alkylidenefurans (IV); (IVb) is isomerized to give the furan (V).
ChemInform Abstract: 3,3‐Diethoxypropyllithium: A Masked Lithium Propanal Homoenolate.
Authors: BARLUENGA J. , RUBIERA C. , FERNANDEZ J. R. , YUS M.
Published: May 2016

Lithiation of 3‐chloropropanal diethyl acetal (I) with lithium naphthalenide and subsequent reaction with the electrophiles (II) yields the 3‐substituted acetals (III).
ChemInform Abstract: Intramolecular (8 + 2) Cycloaddition and 10π‐Electron Electrocyclization Reactions of an 8‐Acylheptafulvene.
Authors: LIU C.‐Y. , HOUK K. N.
Published: May 2016

The γ‐ketoaldehyde (III) is prepared from the Grignard compound (II) and cycloheptatrienylacetyl chloride (I).
ChemInform Abstract: Studies on Fluoroalkylation and Fluoroalkoxylation. Part 16. Reactions of Fluoroalkyl Iodides with Some Nucleophiles by SRN1 Mechanism.
Authors: CHEN Q. , QIU Z.
Published: May 2016

Reaction of the fluoroalkyl iodides (I) with the anion of ethyl acetoacetate (II) gives the products (III) ‐ (VI).
ChemInform Abstract: Economical Synthesis of Fine Chemicals: Tetronic Acid.
Authors: MEUL T. , MILLER R. , TENUD L.
Published: May 2016

Chlorination of the 4‐chloroacetoacetate (I) with sulfuryl chloride produces the 2,4‐dichloroacetoacetate (II) which is cyclized by pyrolysis under normal pressure to form (III).
ChemInform Abstract: Synthesis of New 2‐Mono‐ and 2,5‐Difunctionalized Pyrrolidin‐1‐oxyl Spin Labels.
Authors: HIDEG K. , LEX L.
Published: May 2016

The preparation of mono‐ (e.g.
ChemInform Abstract: Synthesis of 2S,3aS,7aS‐ and of 2S,3aR,7aR‐Perhydroindole‐2‐carboxylic Acid Derivatives from L‐Aspartic Acid.
Authors: BARTON D. H. R. , GUILHEM J. , HERVE Y. , POTIER P. , THIERRY J.
Published: May 2016

Treatment of the cyclohexenyl bromide (I) with the L‐aspartic acid derivative (II) yields the amino acid ester (IIIa) which is acylated to give (IIIb) and (IIIc).
ChemInform Abstract: Synthesis and Alkaline Hydrolysis of (Pentafluoroethyl)imidazoles.
Authors: FUJII S. , MAKI Y. , KIMOTO H. , COHEN L. A.
Published: May 2016

Starting with histamine (Ia) or the histidine ester (Ib), the pentafluoroethyl derivatives (V) and (VI) are synthesized.
ChemInform Abstract: Synthesis and Application of Imidazole Derivatives. Synthesis of (1‐Methyl‐1H‐imidazol‐2‐yl)methanol Derivatives and Conversion into Carbonyl Compounds.
Authors: OHTA S. , HAYAKAWA S. , NISHIMURA K. , OKAMOTO M.
Published: May 2016

The hydroxyalkylimidazoles (III) are prepared from the carbonyl compounds (I) and the lithio imidazole (II) or from the acylimidazoles (IV) and the organometallic reagents (V).
ChemInform Abstract: Enantiotopic‐Group Differentiation. Catalytic Asymmetric Ring‐Opening of Prochiral Cyclic Acid Anhydrides with Methanol, Using Cinchona Alkaloids.
Authors: HIRATAKE J. , INAGAKI M. , YAMAMOTO Y. , ODA J.
Published: May 2016

Asym. ring‐opening of the prochiral anhydrides (II) with MeOH (III) is achieved by a catalytic quantity of various cinchona alkaloids (I).
ChemInform Abstract: Synthesis and Local Anaesthetic Activity of 6‐(α‐Amino‐ω‐phenylalkyl)chromanes.
Authors: DAUKSHAS V. K. , PYATRAUSKAS O. YU. , RAMANAUSKAS YU. YU. , YAUTAKENE I. YU. , LAPINSKAS V. V. , MASKALYUNAS R. S.
Published: May 2016

Starting with the ketones (I), the amines (III) are synthesized via the oximes (II).
ChemInform Abstract: Simple Synthetic Routes to Geiparvarin.
Authors: KANG S. H. , HONG C. Y.
Published: May 2016

Starting with geranyl acetate (I), the synthesis of the novel antitumor agent geiparvarin (VII) is performed as outlined in the reaction scheme.
ChemInform Abstract: Hetaryladamantanes. Part 6. Synthesis and Some Properties of 6‐(1‐Adamantyl)‐3‐cyanopyridin‐2(1H)‐one.
Authors: LITVINOV V. P. , APENOVA E. E. , SHARANIN YU. A.
Published: May 2016

The adamantylhydroxypropenone sodium salt (I) is cyclized, forming the adamantylcyanopyridone (II).
ChemInform Abstract: Studies on Stable Diazoalkanes as Potential Fluorogenic Reagents. Part 3. 4‐Diazomethyl‐2(1H)‐quinolinones.
Authors: ITO K. , MARUYAMA J.
Published: May 2016

Oxidation of the 4‐methyl group of the quinolones (I) produces the aldehydes (II) which are converted to the 4‐(diazomethyl)quinolones (IV) via the hydrazones (III).
ChemInform Abstract: Hydroxyiminoisoquinolin‐3(2H)‐ones. Part 7. Rearrangement of 4‐Hydroxyimino‐1,4‐dihydroisoquinolin‐3(2H)‐ones Under Wolff‐Semmler‐Type Reaction Conditions.
Authors: TIKK I. , DEAK G. , SOHAR P. , TAMAS J.
Published: May 2016

The title reaction of the oximes (I) affords the 4‐acetylamino derivatives (II).
ChemInform Abstract: Synthetic Utilization of Methyl 2‐(F‐Methyl)‐2‐hydryl‐F‐propyl Ether. Part 3. A Simple One‐Pot Preparation and Derivatization of 2‐Alkylthio‐ 5‐(F‐methyl)‐6‐fluoro‐3,4‐dihydro‐4(3H)‐pyrimidinones.
Authors: INOUYE Y. , TEZUKA K. , TAKEDA W. , SUGAI S.
Published: May 2016

The enolate (III), prepared by treatment of the ether (I) with two equivalents of triethylamine (II), reacts with the S‐alkylisothiourea derivatives (IV) to yield the adducts (V).
ChemInform Abstract: 4‐Amino‐1‐(4‐cyclopentylphenyl)butan‐1‐ones; Synthesis and Biological Screening.
Authors: VEJDELEK Z. , PROTIVA M.
Published: May 2016

The title compounds (III) and (V) are prepared starting from the chloride (I) and the biological activity of the salts is investigated.
ChemInform Abstract: Complexes of 2,2′,2′′‐Nitrilotriphenol. Part 1. Bimolecular Nucleophilic Substitution at the Boron Atom.
Authors: MUELLER E. + , BUERGI H.‐B. +
Published: May 2016

The synthesized boron complex (III) (no yield given) forms the adduct (V) when recrystallized in a 1:1 mixture of CDCl3 and Py (IR, 1H NMR, molecular structure).
ChemInform Abstract: 1,1,1‐Trichloro‐2,2,2‐trimethyldisilane: Reagent for Stereospecific Silylation of π‐Allylpalladium Complexes.
Authors: HAYASHI T. , YAMAMOTO A. , IWATA T. , ITO Y.
Published: May 2016

Silylation of the optically active π‐allylpalladium(II) complex (III) with the silanes (I) or (II) and subsequent ethanolysis in the case of (I) yield the chiral allylsilanes (V) and/or (VI).
ChemInform Abstract: Phenylthioallyl and Phenylthiovinyl Phosphine Oxides: Synthesis of 1‐Phenylthiobutadienes and a Three‐Component Synthesis of Ketones.
Authors: GRAYSON J. I. , WARREN S. , ZASLONA A. T.
Published: May 2016

The thiophenylvinyl phosphine oxide (IV) can be prepared starting from the sulfide (I) by either of the two methods shown in the scheme.
ChemInform Abstract: The Reactions of Bis(perfluoro‐organo)tellurium Compounds (Rf)2Te (Rf = CF3, C6F5) with Dialkylcadmium and ‐zinc Compounds R2M (R = CH3, C2H5; M = Zn, Cd).
Authors: HERBERG S. , LANGE H. , NAUMANN D.
Published: May 2016

The stepwise Me/Rf‐exchange reaction of the perfluoroorganotellurium derivatives (I) with dimethylcadmium and dimethylzinc in the presence of diglyme (III) as a Lewis base, which stabilizes the prepared organometallic compounds, is investigated.
ChemInform Abstract: A 1,1‐Dithiocarboxylate Ligand with an Easily Derivatizable Group. Synthesis and Structure of Tris(2‐(ethylamino)cyclopent‐1‐ene‐1‐dithiocarboxylato)bismuth(III).
Authors: BHARADWAJ P. K. , MUSKER W. K.
Published: May 2016

The amine group of the dithiocarboxylic acid (Ia), a compound with antifungal properties, can be easily derivatized by transamination reaction to give (Ib) (yield 81%).
ChemInform Abstract: Reaction Pathways of Geometrically Constrained 17‐Electron cis‐(M(CO)4(L‐L))+ Cations (M: Cr, Mo, W; L‐L: Bidentate Ligand).
Authors: BOND A. M. , COLTON R. , KEVEKORDES J. E. , PANAGIOTIDOU P.
Published: May 2016

Oxidation of cis‐M(CO)4(L‐L) (M: Cr, Mo, W; L‐L: bidentate ligand with P, As, or Se donor atoms) leads to generation of the title cations, which cannot lower their energy by isomerization to the trans configuration as it is the case with (M(CO)4L2)+ and related complexes (L: monodentate P or As ligand).
ChemInform Abstract: Dimeric Tungsten(V) Compounds Containing ((S)W(μ‐S)2W(S))2+. Syntheses and Structures of Di‐μ‐sulfido‐bis((diethyl dithiophosphato‐SS′)sulfidotungsten(V)) and Di‐μ‐sulfido‐bis((N,N‐diethyldithiocarbamato‐SS′)sulfidotungsten(V)).
Authors: DREW M. G. B. , HOBSON R. J. , MUMBA P. P. E. M. , RICE D. A. , TURP N.
Published: May 2016

The compound (III) is prepared by two alternative routes leading to two different crystal forms.
ChemInform Abstract: Preparation and Crystal and Molecular Structures of Uranyl Complexes of 4‐Benzoyl‐2,4‐dihydro‐5‐methyl‐2‐phenyl‐3H‐pyrazol‐3‐thione and the Pyrazol‐3‐one Analogue.
Authors: JARVINEN G. D. , RYAN R. R. , SMITH B. F. , RITCHEY J. M.
Published: May 2016

Uranyl nitrate (II) and the ligand (Ia) react in EtOH to give the complex (IIIa).
ChemInform Abstract: First Example of 1:1 Actinoid‐Phthalocyanine Complexes: Synthesis, Electrochemical, and Spectral Characterization of Bis(diketonato)thorium(IV) and ‐uranium(IV) Phthalocyaninates.
Authors: GUILARD R. , DORMOND A. , BELKALEM M. , ANDERSON J. E. , LIU Y. H. , KADISH K. M.
Published: May 2016

The reaction of (I), prepared in 42% yield from MCl4 and the sodium salt of 2,4‐pentanedione in THF (1 h reflux), with (II) produces the title complexes (III).
ChemInform Abstract: Synthesis and Crystal Structure of (Re(bpy)3)(ReO4)2 (bpy: 2,2′‐Bipyridine).
Authors: STEBLER M. , GUTIERREZ A. , LUDI A. , BUERGI H.‐B. +
Published: May 2016

The air‐stable title compound (III) is synthesized by the reaction of K2ReF6 with a hot solution of bipyridine in water.
ChemInform Abstract: Convenient Synthesis, Properties and the Structure of Tetramethylammonium Tris(pyrimidine‐2‐thiolato)ferrate(II): an Iron Complex with Three Stable Four‐Membered N,S‐Chelate Rings.
Authors: ROSENFIELD S. G. , MASCHARAK P. K. , ARORA S. K.
Published: May 2016

The reaction of FeCl2 with sodium pyrimidine‐2‐thiolate in ethanol and addition of the appropriate ammoniumbromide affords the mer complexes (I).
ChemInform Abstract: Synthesis and Characterization of the Acetazolamide Complexes of Co(II) and Zn(II).
Authors: FERRER S. , JIMENEZ A. , BORRAS J.
Published: May 2016

Alcoholic solutions of the metal chlorides, the ligand and conc.
ChemInform Abstract: Transition Metal Phosphido Complexes. Part 11. Diphosphene Complexes of the Type (R3P)2Ni(η2‐(PR′)2) and Phosphido‐Bridged Nickel(I) Complexes of the Type (R3PNiP(SiMe3)2)2(Ni‐Ni).
Authors: SCHAEFER H. + , BINDER D.
Published: May 2016

Reaction of the complexes (I) with the lithium phosphide (II) in a 1:2 molar ratio affords the diphosphene complexes (III) and the phosphido‐bridged complexes (IV); the former are also obtained by (2 + 1) cyclocondensation of (Ia) or (Ib) with (V).
ChemInform Abstract: Reactions of Copper(II) Complexes of Optically Active N‐Substituted Diamines with Alk‐3‐en‐2‐ones or 4‐Hydroxyalkan‐2‐ones: Formation of Optically Active Macrocycles.
Authors: MIYAMURA K. , HATA K. , MAKINO T. , SABURI M. , YOSHIKAWA S.
Published: May 2016

Bis(diamine) copper complexes (I) are obtained with more than 90% yield from the reaction of Cu(ClO4)2 with the diamines in EtOH (molar ratio 1:2.2).
ChemInform Abstract: Dioxygen‐Copper Reactivity. Reversible Binding of O2 and CO to a Phenoxo‐Bridged Dicopper(I) Complex.
Authors: KARLIN K. D. , CRUSE R. W. , GULTNEH Y. , FAROOQ A. , HAYES J. C. , ZUBIETA J.
Published: May 2016

At low temp., the reaction of the dicopper complex (I) with dioxygen (III) results in the reversible formation of the adduct (II).
ChemInform Abstract: EPR, Ligand Field Spectra and Antimicrobial Activity of Dimeric Aryloxyacetatocopper(II) Complexes with Antipyrine.
Authors: PLESCH G. , BLAHOVA M. , KRAETSMAR‐SMOGROVIC J. + , FRIEBEL C.
Published: May 2016

According to the results of the EPR spectra the complexes, prepared by the reaction of aryloxyacetatocopper(II)‐aquo‐complexes with antipyrine, adopt the binuclear structure (I).
ChemInform Abstract: Crystal Structures and Magnetic Properties of Dinuclear Copper(II) Complexes of 2,6‐Bis(N‐(2‐pyridylmethyl)formimidoyl)‐4‐methylphenolate with Azido and Cyanato‐O Exogenous Ligands.
Authors: MALLAH T. , KAHN O. , GOUTERON J. , JEANNIN S. , JEANNIN Y. , O'CONNOR C. J.
Published: May 2016

The title complexes (V) are synthesized (no yields given).
ChemInform Abstract: X‐Ray Structural Characterization and Magnetic Properties of a Novel Tetranuclear Copper Catecholate.
Authors: GOJON E. , GREAVES S. J. , LATOUR J.‐M. , POVEY D. C. , SMITH G. W.
Published: May 2016

The catechol ligands are prepared by condensation of 2,3‐dihydroxybenzaldehyde with the corresponding aminoalkylpyridine and react in ethanol with the appropriate copper salts to yield the complexes (I)‐(III) (no yields given).
ChemInform Abstract: Carbohydrate‐Silver Complexes. Interaction of β‐D‐Glucurono‐γ‐lactone with Ag(I) Ion and the Effect of Metal Ion Binding on Sugar Hydrolysis.
Authors: TAJMIR‐RIAHI H. A.
Published: May 2016

The interaction of the title lactone (I) with AgNO3, AgClO4, AgOAc and Ag2CO3 is studied in aqueous solutions.
ChemInform Abstract: Synthesis and Characterization of Sulfonylurea Complexes with Cd2+, Hg2+, and Ag+. Crystal and Molecular Structures of K(Cd(chlorpropamide)3) and Hg(tolbutamide)2.
Authors: KESSISSOGLOU D. P. , MANOUSSAKIS G. E. , HATZIDIMITRIOU A. G. , KANATZIDIS M. G.
Published: May 2016

The preparation of the complexes (III), (V), and (VII) involves deprotonation of the ligand by KOH followed by complexation with the metal salt.
ChemInform Abstract: Synthesis and Characterization of a New Non‐Linear Trimetallic Complex, Hexakis(2,2′‐bipyridine)(μ‐dipyrazino(2,3‐f) (2′,3′‐h)quinoxaline)trisruthenium(II) and Related Compounds.
Authors: MASSCHELEIN A. , KIRSCH‐DE MESMAEKER A. , VERHOEVEN C. , NASIELSKI‐HINKENS R.
Published: May 2016

The reaction of one, two or three equiv. of dichlorobis(bipyridine)ruthenium with the hexaaza ligand yields the complexes (I), (II), and (III), respectively.
ChemInform Abstract: Rhodium Carboxylate Complexes of Diphenyltriazene and Berenil, a Substituted Triazene and DNA‐Binding Ligand. Crystal and Molecular Structure of Tetrakis(μ‐acetato)bis(diphenyltriazene)dirhodium(II).
Authors: FARRELL N. , VARGAS M. D. , MASCARENHAS Y. A. , DO P. GAMBARDELLA M. T.
Published: May 2016

The Rh complex (I) is prepared by addition of diphenyltriazene to Rh acetate in MeOH; it crystallizes in the space group P1 with Z=1.
ChemInform Abstract: Triterpenes. Part 83. Reaction of 3‐Keto and 2‐Ketotriterpenoids with 3‐Chloroperoxybenzoic Acid in Aliphatic Alcohols. A New Method of Preparation of α‐Hydroxy Ketones.
Authors: SEJBAL J. , KLINOT J. , VYSTRCIL A.
Published: May 2016

The title reaction of the ketone (I) yields the products (IV)‐(VI) via Baeyer‐Villiger oxidation or the hydroxy ketone (VII) depending on the concentration of H2SO4.
ChemInform Abstract: Inside‐Outside Stereoisomerism. Part 2. Synthesis of the Carbocyclic Ring System of the Ingenane Diterpenes via the Intramolecular Dioxolenone Photocycloaddition.
Authors: WINKLER J. D. , HENEGAR K. E. , WILLIARD P. G.
Published: May 2016

The skeleton of the ingenane diterpenes as present, for instance, in ingenol (I) is constructed.
ChemInform Abstract: On Steroids. Part 331. Preparation of 3β‐Hydroxy‐21,26,27‐trinorcholesta‐5,23‐dien‐25→22‐olide and 3β‐Hydroxy‐20‐(2‐furyl)‐21‐nor‐5‐pregnene Derivatives.
Authors: POUZAR V. , CERNY I. , DRASAR P. , VASICKOVA S. , HAVEL M.
Published: May 2016

An isomeric mixture of the protected title dienes (VI) and (VII) is obtained by two different routes starting from the ester (I) via the alkynes (IV) and (V) (37% based on (I)) or the sulfoxide (IX) (54% based on (I)).
ChemInform Abstract: Reactions of Pennogenin and Related Compounds. Part 2. Reaction of Pennogenin 3,17‐Diacetate with BF3·Et2O.
Authors: STRUGINA L. I. , DENISENKO V. A. , RASHKES YA. V. , KAMERNITSKII A. V.
Published: May 2016

Treatment of pennogenin 3,17‐diacetate (I) with boron trifluoride etherate gives the rearranged products (II) and (III).
ChemInform Abstract: Synthesis on 1,4‐Diaminocyclitol Antibiotics. Part 3. Synthesis of 4‐Hydroxypurpurosamine B Derivatives.
Authors: KANAI K. , SAKAMOTO I. , OGAWA S. , SUAMI T.
Published: May 2016

The starting compound (IIIa) for the synthesis of the title compounds (VIIb) and (X) is accessible from the ribohexopyranoside derivative (Ia) via the intermediate (Ib).
ChemInform Abstract: The Chemistry of O‐Silylated Ketene Acetals: An Efficient Stereocontrolled Synthesis of N‐Benzoyl‐L‐daunosamine.
Authors: KITA Y. , ITOH F. , TAMURA O. , KE Y. Y. , TAMURA Y.
Published: May 2016

The chiral aldehyde (V), obtained from diethyl L‐tartrate (I), undergoes a condensation reaction with the hydroxylamines (VI) to give the chiral nitrones (VII).
ChemInform Abstract: Selective Deoxygenation via Regioselective Thioacylation of Non‐Protected Glycopyranosides by the Dibutyltin Oxide Method.
Authors: HAQUE M. E. , KIKUCHI T. , KANEMITSU K. , TSUDA Y.
Published: May 2016

The pyranosides (I) are consecutively treated with dibutyltin oxide (II) and phenoxythiocarbonyl chloride (III) to produce the derivatives (IV) and (V).
ChemInform Abstract: A Simple and Effective Method for Preparation of the 6(R)‐ and 6(S)‐Diastereoisomers of 5‐Formyltetrahydrofolate (Leucovorin).
Authors: REES L. , SUCKLING C. J. , WOOD H. C. S.
Published: May 2016

Reduction of folic acid (I) with sodium borohydride followed by acylation with (‐)‐menthyl chloroformate (II) yields the diastereoisomeric carbamates (III) which are separated by extraction with 1‐butanol.
ChemInform Abstract: Conformationally Restricted, Disiloxane Bridged Analogues of the Enkephalins.
Authors: DAVIES J. S. , TREMEER E. J. , TREADGOLD R. C.
Published: May 2016

The protected enkephalin analogues (I) which are synthesized by the solid phase method are converted to the cyclic bridged disiloxane analogues (IIIc), (IIId) both showing biological activity in an in vitro assay.
ChemInform Abstract: Diels‐Alder Reactions of Heterocyclic Azadienes: Total Synthesis of PDE I (XVIIIa), PDE II (XVIIIb), and PDE I Dimer Methyl Ester (XX).
Authors: BOGER D. L. , COLEMAN R. S.
Published: May 2016

In connection with the total synthesis of CC‐1065 (XXI), a constituent of Streptomyces zelensis, the title compounds (XVIII) and (XX) are synthesized.
ChemInform Abstract: A Facile Synthesis of Optically Pure L‐Armentomycin and Its D‐Isomer. Highly Enantioselective Reduction of the C‐C Double Bond of Methyl (E)‐ and (Z)‐2,4,4‐Trichloro‐2‐butenoate by Using Baker′s Yeast.
Authors: UTAKA M. , KONISHI S. , OKUBO T. , TSUBOI S. , TAKEDA A.
Published: May 2016

The trichlorobutenoate E‐(I) is selectively hydrogenated with baker's yeast to produce the saturated carboxylate (R)‐(II) after esterification.
ChemInform Abstract: Arsenic Ambient Conditions Preventing Surface Degradation of GaAs During Capless Annealing at High Temperatures.
Authors: KANG C. H. , KONDO K. , LAGOWSKI J. , GATOS H. C.
Published: May 2016

Changes in surface morphology and composition caused by capless annealing of GaAs are studied as a function of annealing temp., TGaAs, and the ambient arsenic pressure controlled by the temp. of an arsenic source, TAs.
ChemInform Abstract: Reactive Ion Etching of Silicon in CCl4 and HCl Plasmas
Authors: CHOW T. P. , MACIEL P. A. , FANELLI G. M.
Published: May 2016

with N2 and Ar additives has been investigated using RF power intensities of 0.4‐0.7 W/cm2 and pressures of 60‐90 mtorr.
ChemInform Abstract: Discoid Liquid Crystals with Novel Lateral Functions.
Authors: KOHNE B. , MARQUARDT P. , PRAEFCKE K. , PSARAS P. , STEPHAN W.
Published: May 2016

Catalytic hydrogenation of the azide (I) produces the alcohol (II) which is converted to the methyl ether (III).
ChemInform Abstract: A Photoelectrochemical Cell Based on an Apparently Supra‐Band‐Edge Reaction; p‐Si/NH3 + KI/NH3 + K/Pt.
Authors: GUYOMARD D. , HERLEM M. , LELIEUR J. P. , LEPOUTRE G. , MATHIEU C. , SCULFORT J. L.
Published: May 2016

The photoelectrochemical cell (PEC) formed by the title chain is an autoregenerated PEC which exhibits an open‐circuit photopotential of 0.5 V and a short‐circuit photocurrent of 1.2 mA cm‐2 under low light intensity.
ChemInform Abstract: Oxidation States of Chromium Dissolved in Glass Determined by X‐Ray Photoelectron Spectroscopy.
Authors: BROW R. K.
Published: May 2016

The results of measurements of the Cr6+ fractions in glasses with varying Na2O contents are in good agreement with those obtained by other analytical methods.
ChemInform Abstract: IR Spectra and UHF SCF Calculations of HF Complexes with NO, (NO)2, and NO2.
Authors: DAVIS S. R. , ANDREWS L. , TRINDLE C. O.
Published: May 2016

The IR spectra of Ar matrices containing NO, NO2 and HF indicate the presence of three different complexes NO···HF, ONNO···HF, and ONO···HF, in which the hydrogen atom is bound to an oxygen of the base in each complex.
ChemInform Abstract: Jahn‐Teller Distortions of Transition Metal Ions in Tetrahedral Coordination. ‐ The Structures of Cat(M(II)(NCS)4) (M(II): Co, Ni, Cu) and of Mixed Crystals M(II)Cr2O4 (M(II): Zn‐Ni, Zn‐Cu, Cu‐Ni) of the Spinel Type.
Authors: REINEN D. , ALLMANN R. , BAUM G. , JAKOB B. , KASCHUBA U. , MASSA W. , MILLER G. J.
Published: May 2016

The compounds Cat(M(II)(NCS)4) (Cat: p‐xylylene‐bis(triphenylphosphonium)2+, M(II): Co, Ni, Cu) crystallize in space group P21/n, Z=4, and contain pseudotetrahedral M(II)N4‐polyhedra, which are distorted due to both packing forces and vibronic coupling effects of Jahn‐Teller type.
ChemInform Abstract: Thermodynamic Properties of Silicalite SiO2.
Authors: JOHNSON G. K. , TASKER I. R. , HOWELL D. A. , SMITH J. V.
Published: May 2016

The new and interesting molecular‐sieve material silicalite has been characterized by low‐temp.
ChemInform Abstract: Thermodynamics of Two, Two‐Dimensional Phases Formed by CO2 Chemisorption on MgO.
Authors: BERUTO D. , BOTTER R. , SEARCY A. W.
Published: May 2016

The equilibrium sorption data determined for CO2 on MgO provide clear evidence for the existence of two chemisorbed surface phases separated by a miscibility gap.
ChemInform Abstract: Kinetics of the Reactions of NO3 Radicals with Cl and ClO.
Authors: COX R. A. , FOWLES M. , MOULTON D. , WAYNE R. P.
Published: May 2016

The kinetic behavior of NO3 (of interest in atmospheric chemistry) and ClO, observed in the modulated photolysis of Cl2‐ClONO2‐N2 mixtures at 1 atm pressure and in the temp. range 278‐338 K, is consistent with the occurrence of reactions A and B. The values of kA and kB are determined to be 5.5·10‐11 independent of temp. and 1.6·10‐12 exp(‐420/T) cm3 molecule‐1 s‐1 respectively.
ChemInform Abstract: Rate Constant for the Reaction OH + H2S in the Range 243‐463 K by Discharge‐flow Laser‐induced Fluorescence
Authors: LAFAGE C. , PAUWELS J.‐F. , CARLIER M. , DEVOLDER P.
Published: May 2016

has been measured because the OH radical is believed to be the major oxidant for H2S in the atmosphere.
ChemInform Abstract: Reduction of B5H9 by Alkali Metals. Preparation of the Dianion (B5H9)2‐ and a New Route to B5H11.
Authors: WERMER J. R. , SHORE S. G.
Published: May 2016

It is shown that pentaborane (I) can be reduced by alkali‐metal naphthalides such as (II) to form the (B5H9)2‐ dianion.
ChemInform Abstract: Molybdenum Cluster Chalcogenides Mo6X8: Intercalation of Lithium via Electron/Ion Transfer.
Authors: GOCKE E. , SCHOELLHORN R. + , ASELMANN G. , MUELLER‐WARMUTH W. +
Published: May 2016

The electrochemical intercalation of Li at 300 K into the Mo6X8 (X: S, Se) and the formation of ternary LixMo6X8 phases has been investigated.
ChemInform Abstract: Fluorides of Fe(II): Ba2(Fe3F10).
Authors: AVERDUNK F. , HOPPE R.
Published: May 2016

Colourless single crystals of the title compound (I) have been prepared by reduction of a mixture of BaF2 and FeF3 (molar ratio 3:7, Fe‐tube, reaction with the wall, 750 °C, 60 d, no yield given).