bluuebunny/crossref_metadata_2025 huggingface dataset:
ChemInform Abstract: 10‐(ω‐Carboxyacyl)dithranol Derivatives.
Authors: TANZER H. , SEIDEL M. , WIEGREBE W.
Published: May 2016

The derivatives (III) and (V) are prepared from dithranol (I) via base‐catalyzed acylation using conventional methods.
ChemInform Abstract: Facile Formation of Hindered Epoxides from Lithium Bromide‐Mediated Decomposition of 4,5‐Tri‐ and Tetrasubstituted‐1,3,2λ5‐dioxaphospholanes.
Authors: MURRAY W. T. , EVANS S. A. JUN.
Published: May 2016

The highly substituted diols (I) are converted to the dioxaphospholanes (III) which undergo LiBr‐mediated decomposition, forming the epoxides (IV).
ChemInform Abstract: Reactions of Unsaturated Compounds. Part 148. Synthesis of 5‐Substituted Furans by Reaction of 1,3‐Alkadiynes with β‐Dicarbonyl Compounds.
Authors: MELIKYAN G. G. , SARGSYAN A. B. , BADANYAN SH. O.
Published: May 2016

The diynes (I) are coupled with the β‐dicarbonyl compounds (II) to give the alkynylfurans (III) and, from the linear diynes (Ia) ‐ (Ic), the bifuryls (IVa) ‐ (IVc).
ChemInform Abstract: Mechanism of the Debromination in Heterocyclization Using α,α‐Dibromocarbonyl Compounds as Synthons.
Authors: AHLUWALIA V. K. , MEHTA B. , KUMAR R.
Published: May 2016

Cyclocondensation of the dibromoacetophenones (I) with phenylacetic acid (II) in the presence of triethylamine yields the debrominated diphenylfuranones (III).
ChemInform Abstract: Chemistry of Isoindoles and Isoindolenines. Part 35. 1‐Alkoxy‐2‐alkyl‐2H‐isoindoles ‐ o‐Quinoid Hetarenes with Unsymmetric Structure.
Authors: KREHER R. P. , HENNIGE H. , JELITTO F. , PREUT J.
Published: May 2016

Regioselective O‐alkylation of (I) gives the isoindolium salt (III).
ChemInform Abstract: Aromatic Nucleophilic Nitrogen‐Nitrogen Exchange Reaction of N,N‐Dimethyl‐2,4‐bis(trifluoroacetyl)‐1‐naphthylamine with Amino Acid Derivatives: A Facile Synthesis of Fluorine‐Containing 1H‐Benzo(g)indolines and 1H‐Benzo(g)indoles.
Authors: HOJO M. , MASUDA R. , OKADA E. , MIYA H.
Published: May 2016

Displacement of the dimethylamino group in the naphthalene derivatives (I) by the amino acid ester hydrochlorides (II) produces the N‐naphthyl amino acid esters (III) which are cyclized under basic conditions, forming the benzo(g)indolines (IV).
ChemInform Abstract: Thienoisothiazoles. Part 3. The Synthesis and Reactions of 3‐Phenyl‐5‐alkylthioisothiazole‐4‐carbonitriles and 3‐Phenylthieno(3,2‐d)isothiazoles.
Authors: KREBS H.‐D.
Published: May 2016

With a view to investigating electrophilic substitution reactions of thieno(3,2‐d)isothiazoles, the derivative (III) is synthesized via ring closure of the title nitrile (IIa) and transformed to the target compound (VIII).
ChemInform Abstract: Fused Heterocyclic Systems. Part 1. Pyrano(3,4‐c)pyrrole‐4,7(2H,6H)‐dione. Synthesis and General Pharmacological Screening.
Authors: CARONNA S. , LAMARTINA L. , PETRUSO S. , SPRIO V. , CARUSO A. , FELICE A.
Published: May 2016

The aromatic aldehydes (I) are coupled with the chloromethyl pyrrolyl ketone (II) to give the acyl epoxides (III) which undergo intramolecular cyclization, producing the pyranopyrrolediones (IV).
ChemInform Abstract: (.+‐.)‐erythro‐γ,δ‐Dihydroxycarboxylic Acid Lactones from a β‐Lithiopropionate Equivalent and α‐Chloro Aldehydes.
Authors: PLEWE M. , SCHMIDT R. R.
Published: May 2016

The dilithium salt of β‐ethylthioacrylic acid (I) reacts with the α‐chloro aldehydes (III) to form predominantly the erythro‐adducts (IV) which produce the hydroxyalkyllactones (V) upon standing at room temperature or the chloroalkyllactones (VII) upon acidic hydrolysis.
ChemInform Abstract: Synthesis of Some 9‐(Aminoalkyl)‐6,7‐dihydropyrimido(2,1‐f)purine‐2,4,8(1H,3H,9H)‐triones.
Authors: PAWLOWSKI M. , BUSCHAUER A. , SCHUNACK W.
Published: May 2016

The protected amines (III), obtained by reaction of the pyrimidopurine (I) with the bromides (II) under phase‐transfer conditions, are converted to the theophyllinepropanoic acids (IV).
ChemInform Abstract: Synthesis of 7‐Alkyl‐8‐mercaptoxanthines.
Authors: ROMANENKO N. I. , FEDULOVA I. V. , PONOMARENKO N. I. , GNATOV N. I. , KLYUEV N. A. , PRIIMENKO B. A. , KOZIK T. A. , ALEKSANDROVA E. V.
Published: May 2016

The 7‐alkyl‐8‐bromoxanthines (I) react with sodium sulfide to give the 8‐mercapto derivatives (II).
ChemInform Abstract: Tilcotil Studies. (3 + 2) Additions with Isothiazol‐3(2H)‐one 1,1‐Dioxide.
Authors: BURRI K. F.
Published: May 2016

Isothiazole derivatives, e.g. (I) and (VIII), react regiospecifically with 1,3‐dipolar agents such as (II) and (IX).
ChemInform Abstract: An Easy and Concise Synthesis of Aza Analogues of Calcium Antagonistic Benzothiazole Derivatives.
Authors: COUTURE A. , HUGUERRE E. , GRANDCLAUDON P.
Published: May 2016

Cyclocondensation of the tolylthiocarboxylate (V) with the aminochloropyridines (VI) produces the tolylthiazolopyridines (VII).
ChemInform Abstract: Phosphorus‐Containing Enamines. Part 5. Formation of 1,4‐Azaphosphorines During the Phosphorylation of Enamides.
Authors: ROZINOV V. G. , IZHBOLDINA L. P. , DONSKIKH V. I. , RASTOVSKII G. V. , SERGIENKO L. M. , DOLGUSHIN G. V. , DMITRICHENKO M. YU.
Published: May 2016

The vinylacetamides (I) are coupled with phosphorus pentachloride (II) to give the azaphosphonia compounds (III).
ChemInform Abstract: Aliphatic Bis(acyl) Selenides ‐ Synthesis and Characterization.
Authors: KAGEYAMA H. , TSUTSUMI H. , MURAI T. , KATO S.
Published: May 2016

The title compounds (III) are prepared as shown and characterized spectroscopically (IR, 1H and 13C NMR, MS).
ChemInform Abstract: Transition‐Metal Complexes with Sulfur Ligands. Part 46. Zn, Cd, Hg, Sn, Pb, Bi and Ti Complexes with the Bi‐ and Tetradentate Thiolato Ligands ′buS2′2‐: 3,5‐Di(tert.‐butyl)benzene‐1,2‐dithiolate(2‐), ′S4′2‐: 1,2‐Bis(2‐mercaptophenylthio)ethane(2‐) and ′buS4′2‐: 1,2‐Bis(3,5‐di(tert.‐butyl)‐2‐mercaptophenylthio)ethane(2‐).
Authors: SELLMANN D. , FREYBERGER G. , MOLL M.
Published: May 2016

Neutral and anionic complexes with the title metals are prepared by reacting the neutral sulfur ligands (I) and (II) or their alkali salts with the metal halides or alkoxides.
ChemInform Abstract: Isolation and Characterization of Ti(O)(OAr‐2,6iPr2)2(NC5H4‐4NC4H8)2 (OAr‐2,6iPr2: 2,6‐Diisopropylphenoxide; NC5H4‐4NC4H8: 4‐Pyrrolidinopyridine): A Mononuclear Aryloxide Compound Containing a Terminal Titanium(IV)‐Oxo Group.
Authors: HILL J. E. , FANWICK P. E. , ROTHWELL I. P.
Published: May 2016

The title compound (IV) (space group C2/c, Z = 8) is formed by hydrolysis of the η2‐iminoacyl‐Ti(IV) compound (I) in the presence of 4‐pyrrolidinopyridine (III) and characterized by X‐ray analysis.
ChemInform Abstract: Conversion of η6‐Arylphosphine to η6‐Benzene Complexes of Molybdenum by Use of Strong Acids to Cleave the Phosphorus‐Carbon Bonds. The Crystal and Molecular Structure of (Mo(H)(η6‐C6H6)(PPh2CH2CH2PPh2)(PPh2F))BF4.
Authors: MORRIS R. H. , SAWYER J. F. , SCHWEITZER C. T. , SELLA A.
Published: May 2016

The major products in solution from the reaction between aqueous HBF4 (II) or HF and the η6‐phenylphosphine‐Mo complexes (I) are the fluxional hydrido (η6‐benzene) complex cations (IV) and the corresponding phosphonium cations (V).
ChemInform Abstract: Synthesis, Structure, and Electronic Properties of Octakis(μ3‐sulfido)hexakis(triethylphosphine)hexatungsten as a Tungsten Analogue of the Molecular Model for Superconducting Chevrel Phases.
Authors: SAITO T. , YOSHIKAWA A. , YAMAGATA T. , IMOTO H. , UNOURA K.
Published: May 2016

The title complex (V) (space group P1, Z=2) is synthesized according to the scheme.
ChemInform Abstract: Voltamperometric and Spectroscopic Studies of the Behavior of Manganese(II) and Manganese(III) Porphyrins with Dioxygen and Superoxide. Evidence for the Formation of a Mixed‐Valence Dimeric Manganese Porphyrin.
Authors: PERREE‐FAUVET M. , GAUDEMER A. , BONVOISIN J. , GIRERD J. J. , BOUCLY‐GOESTER C. , BOUCLY P.
Published: May 2016

In order to detect the existence, in solution, of reaction products between O2 or O·‐ 2 and manganese porphyrins, which may be intermediates in the oxidation reactions, the reaction of superoxide ion with Mn(II) and Mn(III) tetraphenylporphyrin is studied.
ChemInform Abstract: Multiple Bonds Between Main Group Elements and Transition Metals. Part 120. First Arylrhenium Oxides (σ‐Aryl)ReO3.
Authors: HERRMANN W. A. , LADWIG M. , KIPROF P. , RIEDE J.
Published: May 2016

Coupling of the diarylzinc agents (I) with dirhenium heptoxide (II) leads to the formation of the (σ‐aryl)trioxorhenium(VII) compounds (III), together with the zinc perrhenate (IV).
ChemInform Abstract: Kinetics and Mechanism of the Decomposition of Cobalt Dioxygen Complexes of the Binucleating Macrocyclic Ligand BISBAMP.
Authors: GARCIA BASALLOTE M. , CHEN D. , MARTELL A. E.
Published: May 2016

In solution at pH 9‐12 and 50 °C the complexes (I) and (II) are present and undergo irreversible metal‐centered autoxidation to form Co(III) complexes.
ChemInform Abstract: Metal Complexes of Dimethyl Phthalimidomethylphosphine Oxide.
Authors: DODOFF N. I. , SPASSOVSKA N. CHR. , VARBANOV S. G. , BORISOV G.
Published: May 2016

The metal complexes (I)‐(VII) are synthesized in yields of 65‐95% by stoichiometric reactions of the title ligand with corresponding metal salts in solvents.
ChemInform Abstract: Synthesis, Spectroscopy, Magnetism and X‐Ray Structure of Bis(dichloromercury(II)‐μ‐Cl)mercury Bis(tris(2‐aminoethanethiolato)nickelate(II)) Tetrahydrate.
Authors: VAN DIEPEN M. G. W. , DE GRAAFF R. A. G. , HULSBERGEN F. B. , REEDIJK J.
Published: May 2016

The title compound (IV) (space group C2/n, Z=4) is obtained as shown.
ChemInform Abstract: Novel Mono‐ and Binuclear Cu(II) Complexes: Synthesis, Characterization and Catecholase Activity.
Authors: MALACHOWSKI M. R. , DAVIDSON M. G.
Published: May 2016

1‐(Hydroxymethyl)‐3,5‐dimethylpyrazole reacts with benzylamine (2:1 ratio) or α,α'‐diamino‐m‐xylene (4:1 ratio) to give the corresponding tridentate and hexadentate ligands.
ChemInform Abstract: An Exceptionally Large Negative Halochromism in 2‐(4‐Ethoxycarbonylphenyl)‐2,3‐dihydro‐3,3‐dimethyl‐5,6‐cycloheptapyrazoledione, (IIIc), a Hinopurpurin Derivative.
Authors: MORI A. , LI Z.‐H. , TAKESHITA H.
Published: May 2016

Redox potentials and UV/VIS maxima are determined for the hinopurpurin dyes (III), which are stable towards air, light, and acid and base.
ChemInform Abstract: Structure‐Activity Relationship in Ambergris‐Type Woody Odorants Possessing a Hydronaphthalene Skeleton.
Authors: VIAL C. , THOMMEN W. , NAEF F. +
Published: May 2016

Comparison of the odor properties of Polywood and its demethylated analogue (V) which lacks the methyl group at C‐5 shows that both compounds have woody, amber‐like and earthy odor.
ChemInform Abstract: High Diastereoselection in the Intramolecular Diels‐Alder Reaction of o‐Quinodimethanes: An Expedient Entry to trans‐Benzoperhydrindans. A Highly Stereoselective Total Synthesis of (.+‐.)‐Estrone and (.+‐.)‐Adrenosterone.
Authors: NEMOTO H. , NAGAI M. , MOIZUMI M. , KOHZUKI K. , FUKUMOTO K. , KAMETANI T.
Published: May 2016

The dioxolane (I) is transformed to the trans‐benzoperhydrindan (II) via an intramolecular Diels‐Alder reaction.
ChemInform Abstract: Isopropenyl Chlorocarbonate (IPCC) in Amino Acid and Peptide Chemistry: Esterification of N‐Protected Amino Acids; Application to the Synthesis of the Depsipeptide Valinomycin.
Authors: ZEGGAF C. , PONCET J. , JOUIN P. , DUFOUR M.‐N. , CASTRO B.
Published: May 2016

Esterification of N‐protected amino acids such as (I) with various alcohols such as (II) to give the amino acid esters (III) is achieved using IPCC.
ChemInform Abstract: A Reconfirmation of the Reaction of Glucosyl Isothiocyanate with 2‐Chloroethylamine.
Authors: OGURA H. , TAKEDA K. , TAKAYANAGI H.
Published: May 2016

The glucosyl isothiocyanate (I) is coupled with the chloroethylamine hydrochloride (II) to give the aminothiazoline (III) or the thiourea (IV).
ChemInform Abstract: Synthesis and Nidation Inhibitory Activity of a New Class of Ergoline Derivatives.
Authors: BRAMBILLA E. , DI SALLE E. , BRIATICO G. , MANTEGANI S. , TEMPERILLI A.
Published: May 2016

Fifteen N‐acylureas of dihydrolysergic acid derivatives are prepared by treatment of the acids with carbodiimides or by the two‐step procedure given in the scheme.
ChemInform Abstract: Medicinal Plants of Southern Africa. Part 4. Synthesis of Brackenin‐Like Molecules from 1,4‐Dicarbonyl Precursors and by Oxidative Coupling. X‐Ray Molecular Structure of Racemic 2,3‐Dibenzyl‐1,4‐diphenylbutane‐1,4‐dione.
Authors: DREWES S. E. , HOGAN C. J. , KAYE P. T. , ROOS G. H. P.
Published: May 2016

Oxidative coupling of the silyl enol ethers derived from the ketones (I) yields the 1,4‐diketones (III), which undergo dibenzylation to give the title compounds (V) as analogues of the biflavonoid brackenin (VI).
ChemInform Abstract: C(2)‐Carboxy and Carboxymethyl Cephems.
Authors: SPRY D. O. , SNYDER N. J. , PRESTON D. A. , WU C.‐Y. E.
Published: May 2016

The cephems (I) are coupled with di‐tert‐butyl dicarbonate (II) or tert‐butyl bromoacetate (IV) to produce the carboxylates (III) and (V) which have reduced antibiotic activity.
ChemInform Abstract: Peculiarities of the Structure of High‐Temperature Superconductors
Authors: SMOLIN YU. I. , SHEPELEV YU. F. , LEVIN A. A.
Published: May 2016

Review: (134 refs.
ChemInform Abstract: Dioxygen Adsorption on Well‐Outgassed and Partially Reduced Cerium Oxide Studied by FT‐IR.
Authors: LI C. , DOMEN K. , MARUYA K. , ONISHI T.
Published: May 2016

Adsorption of O2 at 20 °C on well‐outgassed (1000 K) CeO2 gives rise to IR bands at 2237 and 1126 cm‐1, which are attributed to superoxide species O2‐(ads).
ChemInform Abstract: Reactions with Aziridines. Part 50. Homolytic Aziridine Opening (Aza Variant of Cyclopropylcarbinyl‐Homoallyl Rearrangement) by Addition of Tributyltin Radical to N‐Acylaziridines. Factors Contributing to the Regioselectivity.
Authors: WERRY J. , STAMM H. , LIN P.‐Y. , FALKENSTEIN R. , GRIES S. , IRNGARTINGER H.
Published: May 2016

The AIBN‐initiated reductive ring opening of N‐acylaziridines such as (I) leads to the products (II) or (III).
ChemInform Abstract: General Method for the Synthesis of Aryliodoso Derivatives Under Aprotic Conditions by the Reaction of Iodosobenzene with Substituted Trimethylsilanes.
Authors: ZEFIROV N. S. , SAFRONOV S. O. , KAZNACHEEV A. A. , ZHDANKIN V. V.
Published: May 2016

A novel and general method for the preparation of the title compounds (III) is reported.
ChemInform Abstract: Cycloalkenone Formation by the Intramolecular Addition of an α‐Diazoketone to an Acetylenic π‐Bond.
Authors: PADWA A. , KRUMPE K. E. , ZHI L.
Published: May 2016

The o‐heptenynyldiazoacetophenone (VII), prepared as shown in the reaction scheme, undergoes rhodium‐initiated denitrogenation and ring closure, yielding the indenone (VIII).
ChemInform Abstract: Synthesis of New Pyrrolidine‐2,5‐diones.
Authors: DIETZ H.‐J. , RIECK G. , SCHULZE B.
Published: May 2016

Whereas the N‐methyl derivatives (III) and (V) are prepared from chloroimide (II) by substitution, the 1‐H compounds (VIII) are better obtained by addition of sulfinic acids (VI) to maleimide (VII).
ChemInform Abstract: Five‐Membered 2,3‐Dioxoheterocycles. Part 15. Reaction of 1‐Aryl‐4‐aroyl‐5‐methoxycarbonyl‐2,3‐dihydro‐2,3‐pyrrolediones with Primary Arylamines.
Authors: MASLIVETS A. N. , SMIRNOVA L. I. , ANDREICHIKOV YU. S.
Published: May 2016

The reaction between equimolar quantities of the pyrrolediones (I) and aromatic amines proceeds regiospecifically at C(5) of the pyrroles (I) to afford products of type (III).
ChemInform Abstract: Convenient Synthesis of Disubstituted Cyclic Ethers. Syntheses of (‐)‐cis‐Rose Oxide and (cis‐6‐Methyltetrahydropyran‐2‐yl)acetic Acid.
Authors: HOMMA K. , MUKAIYAMA T.
Published: May 2016

The cyclic lactones (I), (IV), or (VII) are coupled with the ketene acetal (II) in the presence of triethylsilane and Lewis acid catalyst systems containing antimony(V) to produce the cyclic ethers (III), (V), or (VIII) which bear the ethoxycarbonyl methyl group at position 2. The ratio of cis/trans‐isomers is determined by the substitution pattern.
ChemInform Abstract: Dithia‐diaza(n.2)metacyclophan‐enes
Authors: GRUETZMACHER H.‐F. + , SCHMIEGEL J.
Published: May 2016

(VI)/(VII).
ChemInform Abstract: Organoboron Redox Systems.
Authors: SCHULZ A. , KAIM W.
Published: May 2016

The compounds (I)‐(III) are studied by UV/VIS spectroscopy and cyclic voltammetry.
ChemInform Abstract: Diastereomeric Selective Formation of a Linear Diphosphazane: meso‐iPrN(PhP(iPrNH))2.
Authors: HILL T. G. , HALTIWANGER R. C. , PROUT T. R. , NORMAN A. D.
Published: May 2016

Reaction of PhPCl2 (I) with more than two equiv. iPrNH2 (II) and NEt3 yields a meso:dl mixture of the title compound (III) along with the diaminophosphine (IV).
ChemInform Abstract: Synthesis, Structure, Derivatives, and Coordination Chemistry of 1,1‐Bis((diphenylphosphino)methyl)ethene.
Authors: SCHMIDBAUR H. , PASCHALIDIS C. , STEIGELMANN O. , MUELLER G. +
Published: May 2016

The title compound (III) crystallizes in the space group C2/c with Z=4.
ChemInform Abstract: Cyclic Diazastannylenes. Part 30. Symmetrically and Asymmetrically Substituted Germane‐ and Stannanediyls with Amide, Alcoholate and Thiolate Ligands. Part 1.
Authors: VEITH M. , HOBEIN P. , ROESLER R. +
Published: May 2016

Symmetrically and unsymmetrically substituted germane‐ and stannanediyls of the type (III) and (VI) are synthesized as shown for the examples (IIIa) (space group P21/c, Z=4) and (IIIb) (Pnna, Z = 8), (VIa) and (VIb) (for both P21/c, Z=2) ((IIId): P1, Z=2).
ChemInform Abstract: Synthesis of Nitrogen‐Bridged Purine‐Like C‐Nucleosides from Ethyl 2,5‐Anhydro‐6‐O‐benzoyl‐D‐allonodithioate.
Authors: EL KHADEM H. S. , KAWAI J. , SWARTZ D. L.
Published: May 2016

Coupling of the title compound (I) with 2‐(aminomethyl)pyridine (II) produce the thioamide (III) which is cyclized in the presence of mercuric oxide/mercuric bromide, yielding the imidazolo(1,5‐a)pyridine (IV).
ChemInform Abstract: Identification of Reaction Products in the Low‐Pressure Chemical Vapor Deposition of Molybdenum Silicide
Authors: GACZI P. J. , REYNOLDS G. J.
Published: May 2016

is achieved by mass spectroscopy.
ChemInform Abstract: Hole Mobilities and Surface Generation Currents of CVD Insulators on Germanium.
Authors: RANDOLPH M. , MEINERS L. G.
Published: May 2016

Surface leakage currents and hole mobilities are measured for a number of different insulators.
ChemInform Abstract: Investigations of the Semiconductor Properties of Anodically Formed Passive Layers on Zn and of ZnO Single Crystals in Different Aqueous Electrolytes by EIS
Authors: BOHE A. E. , VILCHE J. R. , JUETTNER K. + , LORENZ W. J. , PAATSCH W.
Published: May 2016

in the frequency range 10‐1 Hz‐104 Hz.
ChemInform Abstract: Electrochemically and UHV‐Grown Passive Layers on Ni(100): A Comparison by AC Impedance, XPS, LEED, and HREELS.
Authors: WAGNER F. T. , MOYLAN T. E.
Published: May 2016

The passive films grown either electrochemically (10 mM HClO4) or by dosing with O2 in ultrahigh vacuum share a common NiO component, but the electrochemically grown films also contain other forms of oxygen (apparently some higher oxides and a superficial hydroxide).
ChemInform Abstract: GaAs Polishing Mechanism with NaOCl Solution.
Authors: HIGUCHI M.
Published: May 2016

GaAs(100) surfaces polished with NaOCl solution are studied by FTIR, XPS, AES, and Raman spectroscopy.
ChemInform Abstract: The Manganese(II) Catalyzed Cerium(IV) Oxidation of Arsenic(III) in Aqueous Sulfuric Acid
Authors: CHIMATADAR S. A. , NANDIBEWOOR S. T. , RAJU J. R.
Published: May 2016

is shown to occur by a single‐electron transfer mechanism involving an intermediate Mn(III) species, presumably MnOH2+.
ChemInform Abstract: Catalytic Activity of Pure Copper Oxide and Samples Containing Different Concentrations of Aluminum Oxide in Heterogeneous Decomposition of Hydrogen Peroxide
Authors: HASSAN E. A. , ABD EL‐SALAAM K. M. , SAID A. A. , EL‐AWAD A. M.
Published: May 2016

is determined and correlated with the non‐stoichiometry of the different samples and electrical conductivity measurements.
ChemInform Abstract: Solution and Solid‐State Characterization of Europium and Gadolinium Schiff Base Complexes and Assessment of Their Potential as Contrast Agents in Magnetic Resonance Imaging.
Authors: SMITH P. H. , BRAINARD J. R. , MORRIS D. E. , JARVINEN G. D. , RYAN R. R.
Published: May 2016

The title compounds (I), prepared by published methods, are characterized in view of the Gd complex (Ia) as a magnetic resonance imaging contrast agent.
ChemInform Abstract: Electron Transfer and Ion Pairing. Part 12. ((Benzosemiquinone‐18‐crown‐6)·‐Li+Na+)·+: A Paramagnetic Triple Ion with Two Different Counter Cations.
Authors: BOCK H. , HERRMANN H.‐F.
Published: May 2016

Cyclovoltammetric and ESR/ENDOR information is given on triple ion intermediates along the two‐step one‐electron transfer pathway of p‐benzoquinone‐18‐crown‐6 (I) to its dihydroquinone dianion salt in aprotic solvents with surplus content of univalent metal salts.
ChemInform Abstract: Effect of pH and Salt Concentration on Bimodal Inclusion of a Nitroxide by Cyclodextrins.
Authors: KOTAKE Y. , JANZEN E. G.
Published: May 2016

In aqueous solution "phenyl‐in" and "tert.‐butyl‐in" inclusion complexes of (I) are observed in the presence of β‐ and γ‐cyclodextrin at pH < 12. The complexation with α‐cyclodextrin only occurs in the presence of high concentration of salts (KCl, (NH4)2SO4, CaCl2).
ChemInform Abstract: Hydrogen Transfer Reactions. Part 12. Ziegler‐Nickel Catalysts for the Hydrogen Transfer.
Authors: WEHAGE H. , HINTZE H. , HEESING A.
Published: May 2016

Catalysts prepared from Ni(acac)2 and AlEt3 show high catalytic activity in the hydrogen transfer between dihydroarenes, but hardly any isomerization and H/D scrambling is observed.
ChemInform Abstract: Carbo‐ and Heterocyclization Reactions of 2‐(4‐Morpholinyl)‐1‐phenylpropene and Nitroolefins.
Authors: FELLUGA F. , NITTI P. , PITACCO G. , VALENTIN E.
Published: May 2016

Both forms (I) and (II) of the title enamine react with the nitroolefins (III) under different conditions to afford the compounds (IV) and (V) as isolable products.
ChemInform Abstract: Photochemistry of Acylazides. Part 3. Direct and Sensitized Photolysis of p‐Trimethylsilylbenzoylazide in the Fluid Phase and in Polymeric Layers.
Authors: ABRAHAM W. , SIEGERT ST. , KREYSIG D.
Published: May 2016

The title azide (I) is used as actinic compound in photographic‐copy processes.
ChemInform Abstract: Photochemical Primary Processes of Xanthene Dyes. Part 10. The Influence of Ionic Micelles on the Fluorescence Quenching of Xanthene Dyes with Diazonium Ions.
Authors: ORTMANN W. , WASSILJUK I. , FANGHAENEL E. +
Published: May 2016

With a view to obtaining informations about the dye‐sensitized photolysis of diazonium salts the steady‐state and the time‐resolved fluorescence quenching of the title dyes (I) and (II) by the diazonium salts (III) is investigated.
ChemInform Abstract: Vinylation of Aromatic Substrates by Free Unsolvated Vinyl Cation in the Gaseous and Liquid Phase.
Authors: FORNARINI S. , SPERANZA M.
Published: May 2016

Free vinyl cations are generated from ditritiated ethylene in the gas phase using the nuclear‐decay technique.
ChemInform Abstract: Radical Stabilization Energies and Synergistic (Captodative) Effects.
Authors: BORDWELL F. G. , LYNCH T.‐Y.
Published: May 2016

The estimation of the radical stabilization energies for (I)‐(III) indicates appreciably larger stabilization energies for (Ia) and (Ib) than for their methyl derivatives (Ic).
ChemInform Abstract: Oxidant‐Dependent Nonadiabatic Intervalence Transitions.
Authors: LEWIS N. A. , OBENG Y. S.
Published: May 2016

It is shown that the reduced oxidant used to generate the mixed‐valence species (I) serves as necessary "cofactor" in the observation of an intervalence transfer (IT) band.
ChemInform Abstract: Enolic Ortho Esters. Part 2. Tandem Nucleophilic/Electrophilic Dimethylation of 4′,4′‐Dimethyl‐3,4,5,8‐tetrahydrospiro(2H‐1‐benzopyran‐2,2′‐(1,3)dioxolane) (I).
Authors: COLLINS D. J. , RUTSCHMANN S. B.
Published: May 2016

A new synthetic strategy is presented which is based on the idea that an enolic ortho ester (I) (from 3,4‐dihydrocoumarin (literature) and chosen as the demonstrating example) by attack of a nucleophile (II) affords an enolate (III) which, in turn, reacts in situ with an electrophile (IV) to give a keto acetal (V).
ChemInform Abstract: Substituent‐Directed Alkyl Addition Reactions of Epoxides. Part 1. Applications to the Synthesis of 3‐Hydroxy‐4‐methylalkanoic Acids.
Authors: FLIPPIN L. A. , BROWN P. A. , JALALI‐ARAGHI K.
Published: May 2016

The alkylative cleavage of the epoxy ethers (I) and (V) with the cuprate (II) or the aluminate (VIII) is studied.
ChemInform Abstract: Selective Decarboxylation of β‐Keto Esters.
Authors: TABER D. F. , AMEDIO J. C. JUN. , GULINO F.
Published: May 2016

The β‐keto esters (I) are selectively decarboxylated in the presence of DMAP in water/toluene to give the corresponding ketones (II).
ChemInform Abstract: Synthesis of Some Itaconates via Wittig Reaction.
Authors: AWAD W. I. , KANDILE N. G. , WASSEF W. N. , MOHAMED M. I.
Published: May 2016

Wittig reaction of the components (I) and (II) yields oily inseparable mixtures of Z/E diesters (III) and (IV).
ChemInform Abstract: A Versatile Method for Allylic Sulfide Synthesis.
Authors: SATO T. , HIRAMURA Y. , OTERA J. , NOZAKI H.
Published: May 2016

Coupling of the methoxymethyl sulfide (I) with the carbonyl compounds (II) yields the α‐hydroxy O,S‐acetals (III) which undergo rearrangement and cleavage, forming the α‐phenylsulfenyl aldehydes (IV).
ChemInform Abstract: Studies on Organosilicon Chemistry. Part 98. Synthesis and Consecutive Double Alkylation Reactions of (2‐Siloxyallyl)silanes as the Synthetic Equivalent of Acetone α,α′‐Dianion.
Authors: HOSOMI A. , HAYASHIDA H. , TOMINAGA Y.
Published: May 2016

Trimethylsilylacetone (III), prepared by reaction of acetyl chloride (I) with the Grignard reagent (II), is deprotonated and subsequently treated with the chlorosilane (IV) to produce the 2‐siloxyallylsilanes (V).
ChemInform Abstract: A Convenient Synthesis of N‐Benzyloxy‐β‐lactams via N‐Benzyloximines.
Authors: IKEDA K. , ACHIWA K. , SEKIYA M.
Published: May 2016

Treatment of the N‐benzyloximines (Ia) and (Ib) with the ketene trimethylsilyl acetals (II) in the presence of trimethylsilyl triflate gives the β‐(benzyloxamino)carboxylates (III) and (IV).
ChemInform Abstract: Synthesis of Unsaturated Bicyclic Lactones and Acetals via Palladium‐Promoted Cyclization of Cyclic Allylic Alcohols.
Authors: LAROCK R. C. , STINN D. E.
Published: May 2016

The mercurioacetates (I), (IV), or (VIII), derived from cyclic allyl ethers, are treated with palladium(II) chloride and lithium chloride in the presence of triethylamine to produce mixtures of valence‐tautomeric fused γ‐lactones.
ChemInform Abstract: Synthesis of 5‐Hetaryl‐1,3‐dithiole Derivatives by Reaction of Hetarylmethyl‐dithiocarbonates with Carbon Disulfide.
Authors: DOELLING W. + , HILDEBRANDT A.
Published: May 2016

Reaction of hetarylmethyl‐dithiocarbonates (cf.
ChemInform Abstract: Synthesis and Analgesic Activity of Novel Heterocycles, (1)Benzothiopyrano(3,4‐b)pyrrole Derivatives.
Authors: HORI M. , KATAOKA T. , SHIMIZU H. , IMAI E. , IWATA N. , KAWAMURA N. , KURONO M. , NAKANO K. , KIDO M.
Published: May 2016

Wittig‐Horner olefination of the ketone (I) with the phosphonate (II) gives the unsaturated ester (III) which is cyclized, forming the benzothiopyranylacetic acid (IV) as the major product.
ChemInform Abstract: Stereoselective Electrophilic Cyclization of Doubly Activated Imines with Allylsilanes and Simple Alkenes.
Authors: TIETZE L. F. , BRATZ M. , PRETOR M.
Published: May 2016

The cyclization of the imines (I), which are accessible by condensation of the corresponding amines with diethyl mesoxalate, leads either to the vinyl piperidines (II) or to the cis‐anellated lactones (III); the latter are obtained with complete retention of the double bond geometry.
ChemInform Abstract: Synthesis and Characterization of a Novel Betaine Dye: 2,4‐Dimethyl‐6‐(2,4,6‐triphenyl‐N‐pyridinio)phenolate.
Authors: PALEY M. S. , MEEHAN E. J. , SMITH C. D. , ROSENBERGER F. E. , HOWARD S. C. , HARRIS J. M.
Published: May 2016

The new betaine dye (III) is prepared by reaction of the pyrylium salt (I) with the aniline (II).
ChemInform Abstract: An Easy Preparation of Simple Sultines and Hydroxyalkanesulfinate Salts.
Authors: KING J. F. , RATHORE R.
Published: May 2016

The α,ω‐hydroxythiols (I) are chlorinated and then quenched with an equimolar amount of water to form the sultines (II).
ChemInform Abstract: Reactivity of 4‐Acetyl‐3‐chloro‐5,6‐diphenylpyridazine Towards Some Nucleophilic Reagents. Synthesis of Some Fused Pyridazine Derivatives.
Authors: ISMAIL M. F. , SAYED F. S. , EL‐KHAMRY A. M. A. , ALI M. A. , MANSOUR M. M.
Published: May 2016

The title compound (II) reacts with the nucleophiles (IV), (V), (VII), or (VIII) to give the products (III), (VI), or (IX).
ChemInform Abstract: A Novel Convenient Synthesis of 8‐Oxo‐3‐thioxo‐2,3,7,8‐tetrahydro‐1,2,4‐triazolo(4,3‐a)pyrazines.
Authors: LEE K.‐J. , KIM S. , UM H. , PARK H.
Published: May 2016

The title compounds (XII) are synthesized from aminoacetaldehyde dimethylacetal (I) in a reaction sequence of six steps.
ChemInform Abstract: Phospho Sugars. Novel Preparation and Their Glycosyl Compounds.
Authors: IKAI K. , IIDA A. , YAMASHITA M.
Published: May 2016

The phospholene 1‐oxides (IV) or (VI) are converted to the phospho sugars (IX) by consecutive bromination, stereoselective oxidation with osmium tetroxide, and peracetylation.
ChemInform Abstract: Synthesis, Characterization, and X‐Ray Crystal Structure of Tris‐isothiocyanato Complexes of the Yttrium(III) and Europium(III) Ions with a Six‐Nitrogen‐Donor Macrocyclic Ligand.
Authors: BOMBIERI G. , BENETOLLO F. , POLO A. , DE COLA L. , HAWKINS W. T. , VALLARINO L. M.
Published: May 2016

The nine‐coordinated tris(isothiocyanato) complexes (I) are prepared from their chlorodiacetato analogues by metathesis reaction with NaNCS in methanol.
ChemInform Abstract: Formation of Metallaheterocycles by Addition of Heteroallenes to the Electron‐Rich Carbonyl Complex (W(η‐C5H5)2(CO)).
Authors: JERNAKOFF P. , COOPER N. J.
Published: May 2016

The study shows that the formation of metallaheterocycles cannot be achieved only with anionic carbonyl complexes but also with electron‐rich neutral carbonyls as the title compound (III).
ChemInform Abstract: Organic Syntheses via Transition Metal Complexes. Part 36. Monofunctional Tri(methylene)methane Chromium and Iron Complexes by Addition of Allenes to M=C Bonds of Carbene Complexes.
Authors: AUMANN R. , TRENTMANN B.
Published: May 2016

The reaction of the octahedral carbene‐Cr complex (I) and its trigonal‐bipyramidal Fe analogue (V) with the monofunctional allenes (II) leads to stereochemical insertion of (II) into the metal‐carbene bond and formation of the tri(methylene)methane complexes (III) and of a mixture of the diastereomeric tri(methylene)methane‐Fe complexes (VI), (VII), and (VIII) as shown.
ChemInform Abstract: Synthesis and Crystal Structure of Bis(triphenylphosphine)gold Tricyanomethanide, ((PPh3)2Au)+ (C(CN)3)‐.
Authors: BAUKOVA T. V. , KRAVTSOV D. N. , KUZ'MINA L. G. , DVORTSOVA N. V. , PORAY‐KOSHITS M. A. , PEREVALOVA E. G.
Published: May 2016

Tetracyanoethylene (I) reacts with the gold oxonium complex (II) to give the salt (III) which contains the new cyanomethanide anion.
ChemInform Abstract: Preparation and X‐Ray Structures of Pt(SeSN2)(PMe2Ph)2 and (Pt(SeSN2H)(PMe2Ph)2)BF4.
Authors: O'MAHONEY C. A. , PARKIN I. P. , WILLIAMS D. J. , WOOLLINS J. D.
Published: May 2016

The title complexes (III) (space group C2/c, Z = 8) and (IV) ( P21/n, Z=4) are obtained according to the scheme and also characterized by IR and NMR spectral data.
ChemInform Abstract: Synthesis of Steroidal Cyclodimers from Cholic Acid. A Molecular Framework with Potential for Recognition and Catalysis.
Authors: BONAR‐LAW R. P. , DAVIS A. P.
Published: May 2016

The amino acid (II), prepared from cholic acid via the ketone (I), undergoes cyclodimerization upon treatment with diethyl cyanophosphate, producing the cholaphane (IIIa).
ChemInform Abstract: Synthesis of New N‐tert.‐Butyloxycarbonyl‐β‐amino‐γ‐phenyl(p‐substituted)‐L‐butyric Acid (“homo”‐L‐Phenylalanyl) Derivatives.
Authors: BARTOSZ‐BECHOWSKI H. , KONDOPINSKA D.
Published: May 2016

The title esters (VI) are prepared from the phenylalanine derivatives (I) via chain elongation by the Arndt‐Eistert method.
ChemInform Abstract: Enantioselective Synthesis of (S)‐γ‐Acetylenic γ‐Aminobutyric Acid (GABA) and (S)‐trans‐γ‐Butenynyl GABA.
Authors: TABOR A. B. , HOLMES A. B. , BAKER R.
Published: May 2016

Mitsunobu reaction of the monoprotected diols (I) followed by selective desilylation yields the hydroxy cycloimides (III) which are converted into the GABA derivatives (IV) mentioned in the title.
ChemInform Abstract: Synthesis of Higher‐Carbon Sugars via Cross‐Aldolization of 7‐Oxanorbornan‐2‐one and Carbohydrate Aldehyde Derivatives.
Authors: JEGANATHAN S. , VOGEL P.
Published: May 2016

The silyl enol ether (I) is coupled with the aldehyde (II) to give the alcohol (III) which is converted into the acetoxy ketone (IV).
ChemInform Abstract: Cyclohexadienone Annulations of Aryl Carbene Complexes of Chromium: New Strategies for the Synthesis of Indole Alkaloids.
Authors: BAUTA W. E. , WULFF W. D. , PAVKOVIC S. F. , ZALUZEC E. J.
Published: May 2016

Reaction of the pentacarbonylchromium carbene complexes (I) and (VI) with the alkynes (II) and subsequent oxidation give the quinones (III) and (VII).
ChemInform Abstract: A Stereocontrolled Synthesis of Trisubstituted Cyclohexanes and Cyclopentanes. Its Application to the Synthesis of 11‐Deoxyprostaglandins.
Authors: HIZUKA M. , FANG C. , SUEMUNE H. , SAKAI K.
Published: May 2016

1,4‐Addition of the organocopper reagents (II) to the unsaturated γ‐lactones (I) and (IV) forms enolates as intermediates which are trapped by intramolecular ring closure, yielding stereoselectively the bridged lactones (III) and (V).
ChemInform Abstract: III‐V Technology: The Key for Advanced Devices
Authors: BENEKING H.
Published: May 2016

Review: (emphasis on GaAs and InP, progress in crystal growth and epitaxy; 55 refs.
ChemInform Abstract: Semiconducting CdSexTe1‐x Thin Films Prepared by Electrodeposition.
Authors: LOIZOS Z. , SPYRELLIS N. , MAURIN G. , POTTIER D.
Published: May 2016

The simultaneous cathode deposition of Cd, Se, and Te from acidic aqueous sulfate solution to obtain semiconducting films of CdTe, CdSe, and CdSexTe1‐x is investigated with emphasis on the correlation between the electrochemical parameters (electrolyte composition and deposition potential) and crystal structure, composition, band‐gap width and photoresponse in a PEC.
ChemInform Abstract: The Electronic Transport in 8 mol% Y2O3‐ZrO2
Authors: PARK J.‐H. , BLUMENTHAL R. N.
Published: May 2016

is studied as a function of temp. (800‐1050 °C) and oxygen partial pressure (0.21‐10‐17 atm) by using gas‐tight electrochemical oxygen‐permeable cell.
ChemInform Abstract: Electrochemical Behavior of Irreversibly Adsorbed Bi on Pt(100) with Different Degrees of Crystalline Surface Order.
Authors: CLAVILIER J. , FELIU J. M. , FERNANDEZ‐VEGA A. , ALDAZ A.
Published: May 2016

Pt(100) oriented electrodes show various voltammogram profiles, the most important ones called SI and SII, corresponding to different structures of the surface and depending on its pretreatment.
ChemInform Abstract: Double Layer on Silver Single Crystal Electrodes in Contact with Electrolytes Having Anions Slightly Specifically Adsorbed. Part 3. The (111) Surface.
Authors: VALETTE G.
Published: May 2016

In aqueous solutions of NaF, NaClO4 and KPF6, the specific ion adsorption on the (111)surface of silver decreases according to ClO4‐ > F‐ > PF6‐ ≥ O (capacity‐potential measurements).
ChemInform Abstract: Kinetics and Mechanism of “Reduced CO2” Electrooxidation on Electrodispersed Platinum in Different Acid Solutions.
Authors: MARCOS M. L. , GONZALEZ‐VELASCO J. , VARA J. M. , GIORDANO M. C. , ARVIA A. J.
Published: May 2016

The electrooxidation of CO2 electroadsorbates on electrodispersed Pt electrodes is studied in 0.05 M and 1 M HClO4, 0.5 M H2SO4, and 1 M H3PO4 by means of voltammetric and potential step techniques.
ChemInform Abstract: ESR Evidence of Tetracoordinated Mo5+ 4c Species Formed on Reduced Mo/SiO2 Catalysts Prepared by Impregnation
Authors: LATEF A. , AISSI C. F. , GUELTON M.
Published: May 2016

with ammonium heptamolybdate is obtained only after reduction in pure H2 flow at temp. as high as 773 K and subsequent quenching.
ChemInform Abstract: Acid‐Base Dissociation of Surface Hydroxyl Groups on Manganese Dioxide in Aqueous Solutions.
Authors: TAMURA H. , ODA T. , NAGAYAMA M. , FURUICHI R.
Published: May 2016

The surface charge on MnO2 suspended in NaNO3 solutions is measured (titration with HNO3) as a function of pH and ionic strength.
ChemInform Abstract: Structural, Surface, and Catalytic Properties of Bismuth Molybdovanadates Containing Foreign Atoms. Part 4. Surface Characterization and Redox Behavior of Iron‐Containing Bismuth Molybdovanadate Catalysts by X‐Ray Photoelectron Spectroscopy.
Authors: GAZZOLI D. , ANICHINI A. , DE ROSSI S. , INVERSI M. , LO JACONO M. , PORTA P. , VALIGI M.
Published: May 2016

The results of studies of the surface properties and the redox behavior of multicomponent oxide catalysts with scheelite structure having the general formula Bi1‐x/3□x/3‐yMy(V1‐xMox‐yFey)O4 (M: Fe or Bi, □: cation vacancies), before and after exposure to H2, propene, or a propene/O2 mixture, point to different reactivities toward these reactants.
ChemInform Abstract: Fluorescence of Cyclotetrasilanes in Rigid Glass at 77 K, a Remarkably Large Stokes Shift.
Authors: SHIZUKA H. , MURATA K. , ARAI Y. , TONOKURA K. , HIRATSUKA H. , MATSUMOTO H. , NAGAI Y.
Published: May 2016

The fluorescence properties are dependent on the molecular structures, planar (I) and bent forms (II) of the compounds.
ChemInform Abstract: Comments on the Molecular Structure and Bonding in W4Cl(O)(OiPr)9 and W4(O)(OiPr)10; Analogies with Tetranuclear Carbonyl Clusters.
Authors: CHISHOLM M. H. , FOLTING K. , HAMMOND C. E. , HUFFMAN J. C. , MARTIN J. D.
Published: May 2016

The discovery of the 12‐electron clusters (I) (by‐product in the synthesis of W4H2(OiPr)14) and (II) (by‐product in the thermal decomposition of W4(OiPr)12 in hydrocarbon solvents) has afforded insights into the complementary bonding in clusters of early and late transition‐metals with alkoxide and carbonyl ligands, respectively.
ChemInform Abstract: Redox Potentials and Related Thermodynamic Parameters of (Diamino polycarboxylato)metal(III/II) Redox Couples.
Authors: OGINO H. , NAGATA T. , OGINO K.
Published: May 2016

Twenty‐three title complexes with the metals V, Cr, Fe and Ru and the diamino polycarbonic acids (I) and (II) are investigated and their electrochemical and thermodynamic data are determined.
ChemInform Abstract: Chlorocarbon Activation: Catalytic Carbonylation of Dichloromethane and Chlorobenzene.
Authors: HUSER M. , YOUINOU M.‐T. , OSBORN J. A.
Published: May 2016

Catalytic carbonylation of the type dichloromethane → ketene, and chlorobenzene → benzoic acid esters or benzaldehyde (the last by presence of alcohols or H2) is possible with Pd complexes such as (III), although the turnover numbers are still small.
ChemInform Abstract: α‐Hydroxy Esters as Chiral Reagents: Asymmetric Synthesis of 2‐Arylpropionic Acids.
Authors: LARSEN R. D. , CORLEY E. G. , DAVIS P. , REIDER P. J. , GRABOWSKI E. J. J.
Published: May 2016

The asymmetric transformation of racemic 2‐arylpropionic acids such as ibuprofen (I) into either their (S)‐ or (R)‐enantiomers is reported, the key step being the addition of a chiral alcohol such as (IV) or amine to the ketene (III) derived from the acid.
ChemInform Abstract: 1,2‐Addition of Activated Vinyl Carbanions to α,β‐Unsaturated Carbonyls.
Authors: DREWES S. E. , EMSLIE N. D. , KHAN A. A. , ROOS G. H. P.
Published: May 2016

Base‐mediated coupling of the unsaturated aldehydes (I) with methyl acrylate (II) produces moderate yields of the 1,2‐adduts (III).
ChemInform Abstract: A Stereocontrolled Cyclopentenone Synthesis via Cycloaddition.
Authors: TROST B. M. , SEOANE P. , MIGNANI S. , ACEMOGLU M.
Published: May 2016

The palladium‐catalyzed methylenecyclopentanellation of the unsaturated sulfones (I) proceeds with high diastereoselectivity to give the isomers (III) as main products, the deprotected alcohols (V) of which undergo ozonolysis to give the fused cyclopentenones (VI).
ChemInform Abstract: Isomerization of Fluorinated β‐Aminovinylthiones and β‐Aminovinyl Ketones.
Authors: FILYAKOVA V. I. , BUSYGIN I. G. , PASHKEVICH K. I.
Published: May 2016

A hitherto unknown and irreversible isomerization of the title compounds (I) with geminal amino and trifluoromethyl groups is observed, which yields the products (II).
ChemInform Abstract: The Photochemical Nucleophile‐Olefin Combination, Aromatic Substitution Reaction: Methanol‐α‐ and β‐Pinene‐1,4‐Dicyanobenzene. The Photo‐NOCAS Reaction. Part 3.
Authors: ARNOLD D. R. , DU X.
Published: May 2016

To get more insight into the mechanism of the photo‐NOCAS reaction studied earlier with 1‐methylcyclohexene as the olefinic substrate, now α‐ (II) and β‐pinene (VI) are used.
ChemInform Abstract: Gas‐Phase Base‐Induced Elimination Reactions in Onium Intermediates. Part 1. Competitive Substitution and Elimination Mechanisms in the Attack of Amines on Diethylmethyloxonium Ions.
Authors: OCCHIUCCI G. , SPERANZA M. , DE KONING L. J. , NIBBERING N. M. M.
Published: May 2016

A study using Fourier transform ion cyclotron resonance MS indicates that the branching ratio between elimination and SN2 substitution is enhanced by the increase in the base strength or in the excitation energy of encounter between the oxonium ion (I) and the amine such as (II), NMe3, and NEt3.
ChemInform Abstract: Cyclobutane as a General Ferromagnetic Coupling Unit. Design and Synthesis of a New, Hydrocarbon Quintet.
Authors: NOVAK J. A. , JAIN R. , DOUGHERTY D. A.
Published: May 2016

The synthesis is described by a scheme (no yields, no further details given except that the syn isomer of the adduct obtained from (IV) and (V) is unstable to hydrogenation conditions).
ChemInform Abstract: Synthesis of Quassinoids. Part 8. Swern Oxidation of α‐Ketols to α‐Diketones.
Authors: KAWADA K. , GROSS R. S. , WATT D. S.
Published: May 2016

Various acyloins such as (I) are treated with dimethyl sulfoxide and trifluoroacetic anhydride to form the corresponding diketones such as (II) after quenching with triethylamine.
ChemInform Abstract: Transformation of Compounds Containing C‐N Bonds on Heterogeneous Catalysts. Part 4. Hydrogenolysis of β‐Lactams on Nickel. A New Method for the Preparation of 1,3‐Amino Alcohols.
Authors: BARTOK M. , GERA L. , GOENDOES G. + , MOLNAR A.
Published: May 2016

The fused β‐lactams (I) are reduced with LiAlH4 to produce the azetidines (II).
ChemInform Abstract: Redox Potentials and Charge Transfer Spectra of Catecholate and Semiquinone Adducts of a Cobalt‐Tetraazamacrocyclic Complex.
Authors: BENELLI C. , DEI A. , GATTESCHI D. , PARDI L.
Published: May 2016

In order to determine the conditions under which the different oxidation states of metals and ligands are stabilized, the electrochemistry and electronic spectra of the complexes (I) are investigated.
ChemInform Abstract: Synthesis of Z‐ and E‐3,4‐Dimethylhex‐3‐ene‐1,6‐diols.
Authors: ROBERGE J. Y. , DESLONGCHAMPS P.
Published: May 2016

The starting dibromodimethylbutenes (V) are prepared by either cleavage of the anhydride (I), followed by reduction and substitution of OH for bromide, or by bromination of the butadiene (VI).
ChemInform Abstract: Reaction of the Methyl Esters of Acetylenic Hydroxy Acids with Ammonia.
Authors: MAL'KINA A. G. , SKVORTSOV YU. M. , GRITSA A. I. , GROMKOVA R. A. , TROFIMOV B. A.
Published: May 2016

Against all expectations the reaction between the title compounds (I) and liquid ammonia (II) proceeds regiospecifically to afford the amides (III) in high yields.
ChemInform Abstract: Synthesis of 2‐Chloroacetyl‐1,3‐cyclohexanediones and Their Reactions with Nucleophilic Reagents.
Authors: PSHENICHNYI V. N. , GULYAKEVICH O. V. , KHRIPACH V. A.
Published: May 2016

The reaction between the 1,3‐cyclohexanediones (I) and chloroacetyl chloride (II) and subsequent AlCl3‐catalyzed rearrangement of the intermediary enol chloroacetates yields the hitherto unknown title compounds (III), whose enolized tautomers are stabilized by strong intramolecular hydrogen bonds as is shown in the scheme.
ChemInform Abstract: A Facile and Direct Conversion of Aryl Acetate to Alkyl Aryl Ether.
Authors: YAMASHITA A. , TOY A.
Published: May 2016

In order to prepare naturally occurring furochromones, the acetoxybenzofurans (I) and (IV) are treated with excess methyl iodide (II) and sodium hydride in the presence of HMPA to yield directly the methoxy analogues (III) and (V) as the main products.
ChemInform Abstract: Novel Reaction of Nitrile Oxides with an Azomethine Fragment.
Authors: ANDRIANOV V. G. , ROZHKOV E. N. , EREMEEV A. V.
Published: May 2016

The reaction between the formaldehyde hydrazone (II) and various nitrile oxides, generated in situ from the chlorooximes (I), affords the open‐chain compounds (III) instead of the expected 1,2,4‐oxadiazoles.
ChemInform Abstract: Facile Preparation of 6‐Bromopyridine‐2‐carboxamide and Pyridine‐2,6‐dicarboxamide: Partial Aminocarbonylation of 2,6‐Dibromopyridine.
Authors: HORINO H. , SAKABA H. , ARAI M.
Published: May 2016

The title compounds (IV) and (V) or (VII) are prepared by the palladium‐catalyzed aminocarbonylation of 2,6‐dibromopyridine (I) with carbon monoxide (III) and the primary amines (II) or (VI).
ChemInform Abstract: (‐)‐α‐Phenylethylamide of 2′,4,4′‐Trinitrobiphenyl‐2‐carboxylic Acid as a Chiral Electron Acceptor.
Authors: IL'INA I. G. , IVANOVA E. V. , ANDRIEVSKII A. M. , POPLAVSKII A. N. , POTAPOV V. M.
Published: May 2016

The hitherto unknown title compound (‐)‐(III) is prepared by Schotten‐Baumann reaction between the aroyl chloride (I) and (‐)‐α‐phenylethylamine (‐)‐(II).
ChemInform Abstract: Alkylation of N‐(1‐Anthraquinonyl)ureas and Their Cyclization into Anthra(1,2‐d)imidazolinones.
Authors: SAVEL'EV V. A. , LOSKUTOV V. A.
Published: May 2016

Treatment of the N‐anthraquinonylureas (Ia) ‐ (Ic) in the presence of the alkyl iodides (II) gives the N'‐akylation products (IIIa) ‐ (IIId).
ChemInform Abstract: Preparation, Characterization, and Chemistry of Cyclic F4S=CCF2OSO2.
Authors: WINTER R. , PEYTON D. H. , GARD G. L.
Published: May 2016

Treatment of sultone (I) with base F3B·NEt3 under a variety of conditions always leads to the same mixture of (II) + (III) from which (II) can be removed by addition of finely ground and thoroughly dried CsF (IV) (to give salt (V); high chemical and thermal stability; extreme solubility in either acetone or MeCN, but virtual insolubility in CH2Cl2).
ChemInform Abstract: An Easy Approach to Prepare Naphtho(2,3‐b)furan‐4,9‐diones.
Authors: FERREIRA V. F. , PINTO A. V. , PINTO M. C. F. R. , DA CRUZ M. C. , CLARINO A.
Published: May 2016

Coupling of the hydroxynaphthoquinone (I) with the butanal (II) gives the butenylated derivative (III).
ChemInform Abstract: Electrochemical Oxidation of 2,3‐Diphenyl‐6‐methylindole in Acetonitrile. General Oxidation Mechanism in a Series of Aryl‐ and Alkyl‐Substituted Indoles.
Authors: LONGCHAMP S. , BARBEY G. , GRANGER P.
Published: May 2016

Anodic oxidation of the indole (I) results in the formation of the dimer (II) as one of the reaction products.
ChemInform Abstract: Sulfonium Salts and Sulfonium Ylides of Pyrazoles.
Authors: WENDEBOURG H. H. , HARTKE K.
Published: May 2016

The pyrazolines (I), (IV), and (VII) react with the sulfoxides (II) in the presence of TFA to give the sulfonium ylides (III) or sulfonium salts (VI) and (VIII).
ChemInform Abstract: Synthesis of 1,5‐Disubstituted Imidazoles Including an Imidazole Analogue of Prostaglandin from 4(5)‐Hydroxymethylimidazole.
Authors: AMINO Y. , ETO H. , EGUCHI C.
Published: May 2016

The imidazole (III), prepared by silylation of the hydroxymethylimidazole (I), is deprotonated and subsequently treated with the bromides (IV) to produce a mixture of the N‐alkylated imidazoles (V) and (VI).