bluuebunny/crossref_metadata_2025 huggingface dataset:
ChemInform Abstract: The Photoinitiated Reaction of Phosphorus Trichloride with Alkynes in the Presence of Phosphorus Tribromide.
Authors: BELYAEVA T. N. , KRIVCHUN M. N. , SENDYUREV M. V. , DOGADINA A. V. , SOKOLOV V. V. , IONIN B. I. , PETROV A. A.
Published: May 2016

In Gegenwart von 5 Mol% Phosphortribromid verläuft die UV‐initiierte Phosphortrichlorid‐Addition an die Alkine (I) zu den Phosphonigsäuredichloriden (II) mit deutlich besserer Ausbeute als ohne Zusatz.
ChemInform Abstract: The Reaction of C‐Silyl Substituted P‐Chloro‐phosphorylides with Carbonyl Compounds.
Authors: KOLODYAZHNYI O. I. , GALOKHOV D. B. , KUKHAR' V. P.
Published: May 2016

Die Chlor‐phosphorylide (I) reagieren mit den aromatischen Aldehyden (II) unter Abspaltung von Trimethylchlorsilan zu den Phosphinoxiden (IIIa), Phosphinsäureamiden (IIIb) und Phosphonsäureamiden (IIIc).
ChemInform Abstract: Strategies to Synthesize a New Glyphosate Tetrazole Analogue.
Authors: KRAUS J.‐L.
Published: May 2016

Als bioisosteres Analogon zu dem Herbizid Glyphosate (VII) wird ausgehend vom Aminomethanphosphonat (I) über das Nitril (III) das Tetrazol (Vb) hergestellt.
ChemInform Abstract: Synthesis and Structure of a Dinuclear Mo(I) Complex Containing Mo ‐ N, Mo2(CO)6(SCH2CO2Et)2(CH3CN)2.
Authors: ZHUANG B. , HUANG L. , YANG Y. , LU J.
Published: May 2016

The dinuclear Mo(I) title Complex (II) is prepared by oxidation of its Mo(O) analogue (I) with I2 as shown.
ChemInform Abstract: Reactions of Pyrazolin‐Azomethin Dyes with 2‐Pyrazolin‐5‐one.
Authors: GACA J. , KOZLOWSKI K. , TRZCINSKA M. , KUCYBALA Z.
Published: May 2016

The dyes (III), obtained from the pyrazolinone (I) and the oxidized photographic developer (II), are decolorized with excess (I) by the formation of the bispyrazolone (IV) in two steps.
ChemInform Abstract: Synthesis of 29‐Norlanostane Derivatives.
Authors: NAORA M. , MURAE T. , TSUYUKI T. , TAKAHASHI T.
Published: May 2016

The seconitriles (I), available from a mixture of lanosterol and dihydrolanosterol, serve as key compounds in the synthesis of the desired title compounds (IV), (V) and (IX).
ChemInform Abstract: A Total Synthesis of C‐Nor D‐Homosteroids of the A→B→C→D Type, Involving a Reductive Alkylation Step for Construction of the D‐Ring.
Authors: BROWN E. , LEBRETON J.
Published: May 2016

Aus dem Wieland‐ Miescher‐Keton (I) wird über zwölf Stufen das C‐Nor‐D‐ Homosteroid (II) hergestellt.
ChemInform Abstract: Synthetic Approach Toward Antibiotic Ezomycins. Part 1. Synthesis of 5‐Amino‐5‐deoxyoctofuranose‐(1,4) Derivatives by Henry Reaction and Their Stereochemistry.
Authors: SAKANAKA O. , OHMORI T. , KOZAKI S. , SUAMI T. , ISHII T. , OHBA S. , SAITO Y.
Published: May 2016

The key intermediate (VIb) is prepared by a 7‐step sequence using the α‐D‐allofuranose derivative (I) as the starting material.
ChemInform Abstract: Synthesis of ara‐Cadeguomycin: 2‐Amino‐3,4‐dihydro‐4‐oxo‐7‐(β‐D‐arabinofuranosyl)‐7H‐pyrrolo[2,3‐d]pyrimidine‐5‐carboxylic Acid.
Authors: OKAMOTO K. , KONDO T. , GOTO T.
Published: May 2016

Glycosylation of the base (I) with the D‐arabinofuranosyl Chloride (II) followed by acetylamination yields an anomeric mixture of (IVa) and (IVb).
ChemInform Abstract: Cyclic Peptides. Part 22. Synthesis of [2‐Amino‐2,3‐dehydrobutanoic Acid4]AM‐Toxin I.
Authors: MIHARA H. , AOYAGI H. , UENO T. , KATO T. , IZUMIYA N.
Published: May 2016

The coupling reaction of (I) with either (IIa) or (IIb) to give the corresponding products (III), followed by treatment with (IV), yields the open‐chain intermediates (V), whose ring Closure provides the Cyclic peptides (VI).
ChemInform Abstract: Steroids: Reactions and Partial Syntheses
Authors: ELKS J.
Published: May 2016

Review: (241 refs.
ChemInform Abstract: The Chlorofluorophosphoranes PClnF5‐n (n = 1‐4). Gas‐Phase Structures and Vibrational Analyses.
Authors: MACHO C. , MINKWITZ R. , ROHMANN J. , STEGER B. , WOELFEL V. + , OBERHAMMER H.
Published: May 2016

The results of gas electron diffraction show that P‐ Fand P‐Cl bonds lengthen with increasing F/Cl Substitution, whereby in general axial bonds are more strongly affected.
ChemInform Abstract: An SERS Study of Silver Electrodeposition from Thiourea and Cyanide Containing Solutions.
Authors: FLEISCHMANN M. , SUNDHOLM G. , TIAN Z. Q.
Published: May 2016

It is demonstrated that in situ surface Raman spectroscopy (SERS) can be used for investigations of electrodeposition processes.
ChemInform Abstract: Slow Transformation Phenomena of Lead Adsorbates on Electrolytically Grown Ag(111) and Ag(100)Electrode Surfaces.
Authors: VITANOV T. , POPOV A. , STAIKOV G. , BUDEVSKI E. , LORENZ W. J. , SCHMIDT E.
Published: May 2016

The influence of step density on the Pbadsorbate behavior on Ag(l 1 l) and Ag(lOO) surfaces has been investigated by cyclic voltammetry.
ChemInform Abstract: Cobalt‐Catalyzed Evolution of Molecular Hydrogen.
Authors: CONNOLLY P. , ESPENSON J. H.
Published: May 2016

Stoichiometry, kinetics and mechanism of the H2 evolution from solutions of CrClz, EuClz, or VCI; in HCl in the presence of trace amounts of the Co(II) macrocycle (I) has been investigated.
ChemInform Abstract: Monolayers and Double Layers of Vanadium Pentoxide on Different Carriers: Preparation, Characterization, and Catalytic Activities.
Authors: KIJENSKI J. , BAIKER A. , GLINSKI M. , DOLLENMEIER P. , WOKAUN A.
Published: May 2016

Reactions of vanadyl triisobutoxide (I) with surface OH groups are used to immobilize mono‐ and double layers of V2O5 on Al2O3, SiO2, MgO, and TiO2 supports.
ChemInform Abstract: The Leaching‐Activation Process of Urushibara Catalysts.
Authors: JACOB I. , FISHER M. , HADARI Z. , HERSKOWITZ M. , WISNIAK J. , SHAMIR N. , MINTZ M. H.
Published: May 2016

The acid‐leaching process resulting in the activation of Urushibara‐Ni catalysts (prepared by Ni(O) deposition from NiCl2 and Zn powder in H2O) has been studied by surface analysis methods.
ChemInform Abstract: Structure‐Stability Relationships in Vinyl Sulfides. Part 1. Stable Conformations of Vinyl Sulfides.
Authors: VIRTANEN R.
Published: May 2016

For (Ia) the s‐cis conformer is more stable than the s‐trans confor‐ ‐ mer by 3.5 kJ/mol.
ChemInform Abstract: Coordination Behaviour in Base‐Free Tris(cyclopentadienyl)lanthanoid(III) Compounds. Part 3. Isomorphism of Tris(cyclopentadienyl)lutetium(III) and Tris(cyclo‐pentadienyl)scandium(III): An Unexpected Consequence of the Lanthanoid Contraction.
Authors: EGGERS S. H. , SCHULTZE H. , KOPF J. , FISCHER R. D.
Published: May 2016

The "total hapticity" within the series of complexes Cp3M (Cp: cyclopentadienyl; M: Sc, Ti, Y, La ‐ Lu) reaches a maximum of 17 for La and Pr in the structure type [(115‐Cp)2M(p‐n5:n2Cp)]" and decreases, as has been found now, for Lu to the minimum value of 12 as already observed for Sc and Ti.
ChemInform Abstract: Halogen Exchange During Complex Formation Between an N‐Halogensuccinimide and a Quaternary Ammonium Halide.
Authors: FINKELSTEIN M. , MOORE W. M. , ROSS S. D. , EBERSON L.
Published: May 2016

When N‐chlorosuccinimide (I) and the ammonium bromide (II) were dissolved in Chloroform containing 10% MeOH and diethyl ether was then added, the Complex (III) was obtained (62% yield).
ChemInform Abstract: Reaction of Hydroxy‐ and Carbonyl Compounds with Sulfur Tetrafluoride.
Authors: BURMAKOV A. I. , KHASSANEIN S. M. , KUNSHENKO B. V. , ALEKSEEVA L. A. , YAGUPOL'SKII L. M.
Published: May 2016

The reaction of the vicinal diols (I), (III) and (V) with SF4 is studied.
ChemInform Abstract: Study on the Nature of the Allene‐ene Intramolecular Cycloaddition Reaction.
Authors: SKATTEBOEL L. , STENSTROEM Y. , UGGERUD E.
Published: May 2016

The thermally induced gas phase reactions of the ene‐aI‐ lene ketones (Ia)‐(Id) give the products (II) [together with (VII) from (lb)] of intramolecular [2 + 2] Cycloaddition as the major reaction pathway.
ChemInform Abstract: Heterocyclic β‐Enamino Esters. Part 41. Syntheses of Heterocycles with Dihalogentriphenylphosphoranes.
Authors: WAMHOFF H. , FASSBENDER F.‐J. , HENDRIKX G. , PUFF H. , WOLLER P.
Published: May 2016

Thermal I2 + 2 ‐Cycloadditions with 4‐R‐TAD.
ChemInform Abstract: Dinitrogen Sulfide.
Authors: WENTRUP C. , FISCHER S. , MAQUESTIAU A. , FLAMMANG R.
Published: May 2016

Bei der Blitz‐Vakuum‐Pyrolyse des Thiatriazols (I) wird IR‐ und massenspektroskopisch die Bildung von Distickstoffsul?d (III) neben Benzonitril (II) nachgewiesen.
ChemInform Abstract: Reactions of 3‐[(Trimethylsilyl)methyl]cyclo‐2‐hexenone with Carbonyl Compounds.
Authors: HATANAKA Y. , KUWAJIMA I.
Published: May 2016

Das silylierte Cyclohexenon (I) reagiert mit den Acetalen (II) in Gegenwart von SnCl4 (III) an der γ‐Position zu den Addukten (IV) bzw. (V)‐.
ChemInform Abstract: Stereochemistry of Phenyl(amino)alkanols.
Authors: GRASSHOFF L. , HALLER R.
Published: May 2016

Aus den Aminoalkoholen (I) erhält man nach Quaternierung zu (II) beim Erhitzen die sterisch einheitlichen Tetrahydrofurane (III); (IIIc) wird auch aus dem Ammoniumsalz (IV) über das Cyclisierungsprodukt (V) hergestellt.
ChemInform Abstract: Synthesis of Certain Substituted Benzopyranopyridine and Pyrimidine Ring Systems.
Authors: ISMAIL M. M. , MOHAMED M. S.
Published: May 2016

Aus dem Dichlorsalicylaldehyd (I) und Cyanessigsäureester (II) erhält man mit Ammoniumacetat das Cumarin (III), das mit den Aldehyden (IV) zu den Tricyclen (V) kondensiert werden kann.
ChemInform Abstract: Cyclization Reactions of β,γ‐Unsaturated Derivatives of Carbonic Acid. Part 9. Regiochemistry of Electrophilic Cyclofunctionalization of β,γ‐Unsaturated Carbamic Acid Esters with Bromine ‐ Synthesis of Oxazolidine‐2‐ones and Tetrahydro‐2H‐1,3‐oxazine‐2‐ones.
Authors: MUEHLSTAEDT M. + , OLK B. , WIDERA R.
Published: May 2016

Treatment of the urethanes (I) with bromine leads to mixtures of the adducts (II) (spectroscopically identified, but not isolated), the oxazolidinones (III) [obtained only in the cases (IIIa)‐(IIIf)], and the tetrahydrooxazinones(IV) [obtained in all cases except (IVd)].
ChemInform Abstract: Reaction of 3‐(2,2,2‐Trichloroethylidene)‐2,4‐pentanedione with Zinc and Carboxylic Acid Chlorides.
Authors: SHCHEPIN V. V. , RODYGIN A. S. , GARTMAN G. A.
Published: May 2016

The title compound (I) reacts with zinc in aprotic solvents to form the stable complex (II), which is acylated by the acyl chlorides (III) to yield the 4‐acyloxy‐3‐dichlorovinylpentenones (IV).
ChemInform Abstract: Novel Reductive Opening of 5,6‐Dihydro‐2H‐pyran Ring.
Authors: JURCZAK J. , BAUER T. , ANKNER K.
Published: May 2016

Das Butadien (I) reagiert mit den D‐Glycerinaldehyd‐Derivaten (II) unter Druck zu den chromatographisch trennbaren Diastereomerenpaaren (III) und (IV).
ChemInform Abstract: Preparative Method for the Synthesis of 2,2‐Dichloro‐1‐formylcyclopropane and Its Reactions.
Authors: KHUSID A. KH.
Published: May 2016

Oxidation of the easily available alcohol (I) affords the title compound (II) in higher yields than earlier methods.
ChemInform Abstract: Syntheses with Cyclobutadienes. Part 13. Azapentafulvenes from 2,3,4‐Tri‐tert‐butylcyclobutadiene‐1‐carboxylic Esters and Isonitriles.
Authors: FINK J. , REGITZ M.
Published: May 2016

The azapentafulvenes (IIIa)‐(IIId) are obtained from the kinetically stabilized cyclobutadienes (I) and the isonitriles (IIa).
ChemInform Abstract: An Asymmetric Synthesis of Chiral 4,4‐Disubstituted Cyclohexenones in High Enantiomeric Purity.
Authors: MEYERS A. I. , LEFKER B. A. , WANNER K. TH. , AITKEN R. A.
Published: May 2016

Mit dem optisch aktiven Aminodiol (I) als chiraler Hilfsgruppe entsteht aus der Ketosäure (II) mit guter Selektivität (84%) das bicyclische Lactam (III), das stufenweise zu (V) und zu (VII) alkyliert wird.
ChemInform Abstract: Synthesis and Properties of 1,3,5,7‐Tetra‐tert‐butyl‐s‐indacene.
Authors: HAFNER K. , STOWASSER B. , KRIMMER H.‐P. , FISCHER S. , BOEHM M. C. + , LINDNER H. J.
Published: May 2016

In order to determine the influence of substituents and their positions on the differences between the enthalpies of formation for localized and delocalized structures such as (II)(space group P2′/c; Z=2), this compound is prepared from fulvalene (I) by acid‐catalyzed condensation.
ChemInform Abstract: Synthesis of Benzospiro[2,4]heptane Derivatives.
Authors: BARTHA E. , ARVAY Z. , RAZUS A. C.
Published: May 2016

Die Reduktion der Ketone (Ib) ‐(IIIb), deren Herstellung beschrieben wird, liefert die entsprechenden Alkohole(Ia)‐(IIIa).
ChemInform Abstract: Stereocontrolled Synthesis of Paraconic Acid Esters from β‐Lactones.
Authors: MULZER J. , CHUCHOLOWSKI A.
Published: May 2016

The paraconic acids (II), prepared by acid‐catalyzed recyclization from β‐lactones(I), are esterified and converted to the enolates (IV).
ChemInform Abstract: A Friedel‐Crafts Synthesis of N‐Substituted Thiophenecarbothioamides.
Authors: JAGODZINSKI T. , JAGODZINSKA E. , JABLONSKI Z.
Published: May 2016

Thiophenes (I) and (IV) undergo Friedel‐Crafts catalyzed reactions with the isothiocy‐anates (II) to give (III) and (V), respectively.
ChemInform Abstract: α‐Nitroarylation of Ketones and Esters: An Exceptionally Facile Synthesis of Indoles, 2‐Indolinones, and Arylacetic Acids.
Authors: RAJANBABU T. V. , CHENARD B. L. , PETTI M. A.
Published: May 2016

Die durch o‐Nitroarylierung von Silylenolethern wie (II) (aus Ketonen) oder Ketensilylacetalen wie (VIII) (aus Estern oder Lactonen) in Gegenwart von (III) zugänglichen o‐Nitroaryl‐Derivate (V), (IX)oder (XII) lassen sich reduktiv zu Indol‐Derivaten wie (VI), (XI), (XIII) oder (XIV) cyclisieren.
ChemInform Abstract: Reactions of Cyanoformamidines with Hexafluoroacetone.
Authors: GRUETZMACHER H. + , ROESKY H. W.
Published: May 2016

The oxazoles (V) are obtained by reaction of hexafluoroacetone (IV) with the N,N‐dialkylcyanoform‐amidines (III) generated from the amines (I) and dicyan (II).
ChemInform Abstract: A Convenient Synthesis of 5‐(4‐Pyridinyl)‐2(1H)‐pyridones.
Authors: FANG W.‐P. , SHIEH P. , SHIAO M.‐J.
Published: May 2016

Lithiierung der Brompyridine (I) und nachfolgende Reaktion mit den Pyridinium‐Salzen (II) liefert die instabilen Dihydrobipyridyle (III), die leicht zu den Bipyridylen (IV) oxidiert werden.
ChemInform Abstract: Stereoselective Synthesis, Structural Studies, and Hydrolysis of Tricyclic Alkoxysulfonium Salts.
Authors: GLASS R. S. , HOJJATIE M. , SETZER W. N. , WILSON G. S.
Published: May 2016

Aus den Alkoholen (I) werden die Alkoxysulfoniumsalze (II) hergestellt, deren Strukturen durch Röntgenstrukturanalysen gesichert werden.
ChemInform Abstract: Palladium Catalysis in the Preparation of Alkynylpyrimidines.
Authors: SOLBERG J. , UNDHEIM K.
Published: May 2016

The pyrimidinone(I) is converted to the 4‐iodopyrimidine (II) by general methods.
ChemInform Abstract: Potassium 9‐O‐(1,2:5,6‐Di‐O‐isopropylidene‐α‐D‐glucofuranosy1)‐9‐boratabicyclo[3.3.1]nonane. A New, Effective Chiral Borohydride Reagent.
Authors: BROWN H. C. , PARK W. S. , CHO B. T.
Published: May 2016

Das aus 9‐Borabi‐cyclononan(I), dem chiralen Hilfsreagens (II) und Kaliumhydrid (III) zugängliche chirale Borhydrid‐Reagens (IV) reduziert die Ketone (V) mit hohen optischen Ausbeuten zu den optisch aktiven Alkoholen (VI).
ChemInform Abstract: Alternative Syntheses and Diels‐Alder Reactions of 2,3‐Bis(trimethylsilyl)buta‐ 1,3‐diene.
Authors: GARRATT P. J. , TSOTINIS A.
Published: May 2016

Aus 1‐Brom‐1‐trimethylsilyl‐ethylen (Ia) erhält man über die Li‐ oder die Grignard‐Verbindung (Ib) mit Acetaldehyd das Addukt (II), das nach Oxidation zum Keton (III) in das Tosylhydrazon (IV) übergeführt wird.
ChemInform Abstract: Ring Opening and Enlargement of Cyclopropyl Trimethylsilyl Ketones by Acids.
Authors: NAKAJIMA T. , MIYAJI H. , SEGI M. , SUGA S.
Published: May 2016

Die Umsetzung der Cyclopropyltrimethylsilyl‐ketone (I) mit HCl bzw. Lewis‐Säu‐ren führt in Abhängigkeit vom Substitutionsmuster und der eingesetzten Säure unter Ringöffnung zu den Ketonen (II) und/ oder unter Ringerweiterung zu den Dihydrofuranen (III).
ChemInform Abstract: Oxidation of Organyl(silatran‐1‐ylalkyl)sulfides.
Authors: VORONKOV M. G. , SOROKIN M. S.
Published: May 2016

Die Oxidation der Silatranyl‐substituierten Sulfide (I) mit 30%igem H2O2 führt in hohen Ausbeuten zu den Sulfoxiden (II), die ebenfalls mit Monoperoxyphthalsäure oder NO2 als Oxidationsmittel erhalten werden.
ChemInform Abstract: Chemistry of Polyfunctional Molecules. Part 98. Oxidative Ring Enlargement of the P3‐Nortricyclane, 4‐Methyl‐1,2,6‐triphosphatricyclo[2.2.1.02,6]heptane, by Sulfur and Selenium to Hetero Noradamantanes and Adamantanes.
Authors: ELLERMANN J. , DEMUTH A. A. M. , BAUER W.
Published: May 2016

The triphosphatricyclo‐heptane (II) reacts with sulfur or selenium in a sealed tube under vacuum to yield the expanded Compounds (I), (III), or (IV), depending on the molar ratio of the reactants (1:3, 1:5, 1:6).
ChemInform Abstract: Phosphorus Compounds with Unusual Coordination. Part 12. Diels‐Alder Reactions with tBu ‐ C ≡ P ‐ a Lucrative Access to λ3‐Phosphorines.
Authors: ROESCH W. + , REGITZ M.
Published: May 2016

Diels‐Alder reactions of the phosphaalkyne (II) with the cyclic dienes (I) generate the adducts (III) which decompose spontaneously with elimination of "X" to yield the λ3‐phosphorines(IV).
ChemInform Abstract: Organometallic Compounds of Epoxides.
Authors: BARTMANN E.
Published: May 2016

Although the direct conversion of epoxides (I) into (II) with the metals themselves was not possible, the formation of (II) was achieved on using the radical anion salts of aromatic hydrocarbons.
ChemInform Abstract: f‐Element/Crown Ether Complexes. Part 1. Synthesis and Structure of [Y(OH2)8]C13 . (15‐crown‐5).
Authors: ROGERS R. D. , KURIHARA L. K.
Published: May 2016

A solution of the crown ether in CH3CN ‐ CH3OH (3:1) reacts with YCl3 · n H2O at 60°C for 20h to give the title complex (no yield given).
ChemInform Abstract: Transition Metal‐Ketene Compounds. Part 27. Variable Electron‐Donor Ability of Alkyne Ligands
Authors: KREISSL F. R. , REBER G. , MUELLER G. +
Published: May 2016

The reaction of the ketenyl compound (I) with the electron‐rich ynamine (II) does not undergo a cyclo‐addition reaction but leads via replacement and concomitant opening of the WC2 three‐membered ring to the title complex (III).
ChemInform Abstract: [{(η5‐Me5C5)Co}3C12H10]. A Complex of Biphenyl with Kekulé Structure.
Authors: LEHMKUHL H. , NEHL H. , BENN R. , MYNOTT R.
Published: May 2016

The novel trinuclear title complex (II) has been prepared.
ChemInform Abstract: Fluorescent Dyes with Five‐membered Ring Carboximide Substructures.
Authors: LANGHALS H. , GRUNDNER S.
Published: May 2016

The dye (III) is accessible via thermal decarboxylation, Diels‐Alder addition, and the subsequent reaction with the corresponding aniline.
ChemInform Abstract: Synthesis of 17α‐Bromovinyl‐ and 17α‐Iodovinylnortestosterone Derivatives.
Authors: HOFMEISTER H. , LAURENT H. , SCHULZE P.‐E. , WIECHERT R.
Published: May 2016

By the choice of appropriate reaction conditions, norethisterone (Ia) and the derived ketal (Ib) can be selectively converted to either Z‐ or E‐compounds (II).
ChemInform Abstract: Enantiomeric Differentiation of Racemic Organic Salts by Chiral Crown Ethers Derived from Sugars.
Authors: GEHIN D. , DI CESARE P. , GROSS B.
Published: May 2016

Ausgehend von den partiell geschützten Zuckern (I) werden die optisch aktiven Kronenether (V) aufgebaut, deren Komplexe mit α‐Aminosäure‐estern untersucht werden.
ChemInform Abstract: Studies on Tetrahydroisoquinolines. Part 28. Syntheses of (±)‐N‐Methyllaurotetanine, (±)‐Cassythicine, (±)‐9‐Hydroxy‐1,2,3,10‐tetramethoxyaporphine, (±)‐Dicentrine, and (±)‐Thalicsimidine.
Authors: HARA H. , HASHIMOTO F. , HOSHINO O. , UMEZAWA B.
Published: May 2016

Oxidation der Tetrahydroisochinoline (I) mit Blei(IV)‐acetat liefert die o‐Chinolacetate (II), aus denen durch Cyclisierung mit Schwefelsäure/Acetanhydrid und nachfolgende alkalische Hydrolyse racemisches(±)‐ N‐Methyllaurotetanin (IIIa), (±)‐Cassythicin (IIIb) und (±)‐9‐Hydroxy‐1,2,3,10‐tetramethoxyaporphin (IIIc) erhalten werden.
ChemInform Abstract: Chemical Alterations of Nucleic Acids and Their Components. Part 14. Synthesis of 7‐Aminoguanosine and Its Conversion to 8‐Substituted Derivatives.
Authors: KOHDA K. , BABA K. , KAWAZOE Y.
Published: May 2016

Das bei der Aminierung von Guanosin (I) mit dem Hydroxylamin (II) erhaltene instabile katio‐nische N‐Amino‐Derivat (III) liefert beim Erhitzen mit Wasser das Cycloguanosin (IV) und das 8‐Hydroxyguanosin (V).
ChemInform Abstract: Tervalent Phosphorus Acids
Authors: DAHL O.
Published: May 2016

Review: (117 refs.
ChemInform Abstract: Raman Spectroscopic Studies of Vapor Complexation in the MCl4‐POC13 and MCl4‐AlCl3 (M = Zr or Hf) Binary Systems
Authors: BOGHOSIAN S. , PAPATHEODOROU G. N. , BERG R. W. , BJERRUM N. J.
Published: May 2016

300‐500°C. Acomparison of the vapor spectra features of the systems ZrCl4‐POC13 and HfCl4‐POC13 with the spectra of‐the l :l liquid and glass MCl4‐ POCl3 (M: Zr or Hf) indicate that the vapor complexes also have l:l stoichiometry and that complexing occurs via oxygen bridging.
ChemInform Abstract: First Observation of Electroluminescence (EL) at the p‐Type Semiconductor/Electrolyte Interface Caused by Electron Injection: Energetics of Adsorbed Hydrogen at the p‐GaAs Electrode.
Authors: UOSAKI K. , KITA H.
Published: May 2016

EL due to a band‐to‐band transition is observed at the p‐ GaAs/l M NaOH and p‐GaAs/0.5 M H2SO4 interfaces just after the potential is pulsed from strong negative bias to the potential near the ?at band potential.
ChemInform Abstract: Wear‐Corrosion Mechanism of Stainless Steel in Chloride Media.
Authors: ABD‐EL‐KADER H. , EL‐RAGHY S. M.
Published: May 2016

At anodic potentials, an oxide film is formed on 18 Cr‐ l0 Ni stainless steel and the wear rate is almost twice the rate under cathodic protection.
ChemInform Abstract: Relationship Between the Extractability and the Rate of Transfer of Potassium Ion by Macrocyclic Carriers in Liquid Membrane Systems.
Authors: YOSHIDA S. , HAYANO S.
Published: May 2016

The relationship between the extractability and the rate of transfer of potassium ion by macrocyclic carriers was investigated in Chloroform membrane Systems.
ChemInform Abstract: Comparison of the Complexation of Open‐Chain and Cyclic N2S2 Ligands with Cu+ and Cu2+.
Authors: KADEN T. A. , KADERLI S. , SAGER W. , SIEGFRIED‐HERTLI L. C. , ZUBERBUEHLER A. D. +
Published: May 2016

With Cu2+, the open‐chain ligands (I) give the complexes (III) and (IV), the stabilities and absorption spectra of which have been determined.
ChemInform Abstract: Anodic Oxidation of Alkylbenzenes in Dry Acetonitrile.
Authors: PEREZ DE MARQUEZ O.
Published: May 2016

Die anodische Oxidation der Alkylbenzole (I) in Acetonitril (II) liefert die N‐Benzylacetamide (III).
ChemInform Abstract: The [4 + 4] Dimerization of 2,3‐Dimethylene‐2,3‐dihydrofuran: Secondary Deuterium Kinetic Isotope Effect Evidence for a Two‐Step Mechanism.
Authors: CHOU C.‐H. , TRAHANOVSKY W. S.
Published: May 2016

The title compound and its isotopomers (I) are generated by flash vacuum pyrolysis.
ChemInform Abstract: Photochemical Reaction of 1,4‐Naphthalenedicarbonitrile with Alkylbenzenes and Bibenzyls.
Authors: ALBINI A. , FASANI E. , MELLA M.
Published: May 2016

In contrast to (IIb) alkylbenzene(IIa) quenches the fluorescence of (I) by a subsequent reaction to give (IIIa) and (IVa).
ChemInform Abstract: l‐Naphthylcarbene: Spectroscopy, Kinetics, and Mechanisms.
Authors: BARCUS R. L. , HADEL L. M. , JOHNSTON L. J. , PLATZ M. S. , SAVINO T. G. , SCAIANO J. C.
Published: May 2016

The title carbene (II), which cannot be observed directly, forms the product (III) via insertion.
ChemInform Abstract: Diazabenzosemibullvalene. A Precursor to the Benzoprefulvene Biradical and Indenylmethylene.
Authors: KJELL D. P. , SHERIDAN R. S.
Published: May 2016

The title compound (IV) is prepared according to the scheme starting from the previously reported naphtha1ene‐N‐methyl‐triazolinedione adduct (I) (40‐70% yields); the intermediate hydrazine (III) cannot be isolated and does not oxidize with O2, but with 4‐Methyl‐1,2,4‐triazoline‐3,5‐dione.
ChemInform Abstract: Asymmetric Oxidation of Olefins with Osmium Tetroxide Coordinated by Chiral Diamines Derived from L‐Tartaric Acid.
Authors: YAMADA T. , NARASAKA K.
Published: May 2016

In Gegenwart des chiralen Diamins (I) werden die Olefine (II) und (VI) durch Osmiumtetroxid enantioselektiv in die cis‐ Diole (III) bzw. (VII) übergeführt.
ChemInform Abstract: Epoxidation Advance May Spur Its Industrial Use.
Authors: STINSON S.
Published: May 2016

In Gegenwart von Molekularsieben benötigt man für die asymmetrische Sharpless‐Epoxidation von Allylalkoholen nur noch katalytische Mengen an Titan(IV)‐isopropylat und ( +)‐ bzw. (‐)‐Weinsäure‐diethylester.
ChemInform Abstract: Regioselective Reduction of Polyketones on Silica Gel Surface with Borane‐Trimethylamine Complex.
Authors: GOHZU S. , TADA M.
Published: May 2016

Verschiedene Polyketone wie die Steroide (I) und die bicyclischen Verbindungen (IV) werden unter den angegebenen Bedingungen regioselektiv zu den entsprechenden Alkoholen reduziert.
ChemInform Abstract: A Selective 1,2‐Reduction of γ‐Amino‐α,β‐Unsaturated Esters by Means of BF3‐ OEt2 ‐DIBAL‐H System.
Authors: MORIWAKE T. , HAMANO S. , MIKI D. , SAITO S. , TORII S.
Published: May 2016

Die im Titel genannten Verbindungen (I) werden durch konsekutive Zugabe von Bortrifluoridetherat (zur Komplexierung am N‐Atom) und Diisobutylaluminiumhydrid (II) in hohen Ausbeuten in die Allylalkohole (III) übergeführt.
ChemInform Abstract: Friedel‐Crafts Acylation of 1‐Methoxy‐3,5‐dimethylbenzene and the Kinetics of Protiodeacylation of the Ketones thus Obtained.
Authors: AL‐KA'BI J. , GORE P. H. , MOONGA B. , AL‐SHIEBANI I. S. , SHIBALDAIN N. L. , KAMOUNAH F. S.
Published: May 2016

While acylation of the title compound (Ia) affords exclusively the product (Ib), benzoylation leads to mixtures of the derivatives (Id) and (Ie).
ChemInform Abstract: Facile Conversion of Tetrahydropyranyl and Silyl Ethers into Esters Using Acid Chlorides and Zinc Chloride.
Authors: KIM S. , LEE W. J.
Published: May 2016

Die Tetrahydropyranyl‐ bzw. Silylether (I) werden mit Säurechloriden (II) in Gegenwart von Zinkchlorid zu den entsprechenden Estern (III) umgesetzt.
ChemInform Abstract: Photosensitized Dimerization of Phenol in Porphyrin‐Quinone‐Phenol System.
Authors: MARUYAMA K. , FURUTA H.
Published: May 2016

In Gegenwart von Tetraphenylporphyrin (TPP) und eines Chinons wie p‐Benzochinon ′ wird das p‐Methoxyphenol (I) zu (II) photodimerisiert, wobei die Quantenausbeute vom Redox‐Potential des verwendeten Chinons abhängt.
ChemInform Abstract: A Versatile Synthesis of Vicinal Diazides Using Hypervalent Iodine.
Authors: MORIARTY R. M. , KHOSROWSHAHI J. S.
Published: May 2016

Aus den Olefinen (I) entstehen mit Natriumazid (II) in Gegenwart von Iodosobenzol in Eisessig die Diazide (III) sowie im Falle von (Ia) geringe Anteile des Azido‐ketons (IVa).
ChemInform Abstract: Pseudoesters and Derivatives. Part 23. Reaction of 3‐Bromo‐5‐methoxyfuran‐ 2(5H)‐one with Nucleophiles.
Authors: FARINA F. , MAESTRO M. C. , MARTIN M. R. , MARTIN M. V. , SANCHEZ F. , SORIA M. L.
Published: May 2016

The reactions between the title compound (I) and various nucleophiles are investigated in a solid ‐ liquid two‐phase system according to method A).
ChemInform Abstract: Oxidative Coupling of Ketene Dithioacetals with Silylated Carbon Nucleophiles by the Use of Trityl Tetrafluoroborate.
Authors: HASHIMOTO Y. , MUKAIYAMA T.
Published: May 2016

Die durch Hydrid‐Abstraktion mit Trityltetrafluoroborat (II) aus den cyclischen S,S‐Acetalen (I), (IV) bzw. (XI) zugänglichen Salze (III) reagieren mit C‐Nucleophilen wie den Silylenolethern (V), (VII) und (XII) oder dem Allylsilan (IX) regiospezifisch zu den neuen S,S‐Thioketenacetalen (VI), (VIII), (X) bzw. (XIII).
ChemInform Abstract: Reaction of Diarylnitrilimines with Ethyl 1,4‐Benzodioxin‐2‐carboxylate.
Authors: HLIMI F. , TSHIAMALA K. , VEBREL J. , LAUDE B.
Published: May 2016

The dioxin carboxylates (I) react with the nitrilimines (II) to give the cycloadducts (III), which are converted via the phenoxypyrazoles (IV) [or directly by treatment first with KOH and then 2 M HCl] to the acids (V).
ChemInform Abstract: On the Derivatization of 3‐Amino‐pyrazole‐4‐carboxylic Acid.
Authors: HANNING E. , BEYER G. , LABAN G.
Published: May 2016

Die Aminopyr‐ azolcarbonsäuren (II) werden nach bekannten Methoden in die Carbonsäureester (I) und Carbonsäureamide (III) umgewandelt.
ChemInform Abstract: Synthesis and Reactions of Some New 2‐(4′‐(3",4"‐Xylene sulphonamido)phenyl)‐ 4‐arylmethylene‐oxazolin‐5‐ones.
Authors: HABIB O. M. O. , HASSAN H. M. , MOAWAD E. B.
Published: May 2016

The oxazolinones (III) are prepared from the acid (I) and the aldehydes (II) according to literature data.
ChemInform Abstract: A New Synthesis of 4‐Amino‐2‐quinolinones.
Authors: BERGMAN J. , BRYNOLF A. , VUORINEN E.
Published: May 2016

The reaction between the N‐oL‐haloacylanthranilonitriles (I) and Grignard or organolithium reagents yields the quinolinones (II).
ChemInform Abstract: Quinazolinecarboxylic Acids. Part 12. Synthesis of Alkyl [2‐(Ethoxycarbonyl)‐3,4‐dihydro‐4‐oxoquinazolin‐3‐yl]‐, [2‐(Ethoxycarbonyl)quinazolin‐4‐yloxy]‐ and (5,6,7,8‐Tetrahydro‐2‐phenylquinazolin‐4‐ylthio)alkanoates.
Authors: SUESSE M. + , ADLER F. , JOHNE S.
Published: May 2016

Reaction of the acids (Ia) with the oxalate (II) yields the quinazolinones (III), whereas‐the quinazolone (IXb) is obtained from the ester (Ib) in only low yield in addition to the main product (V).
ChemInform Abstract: Photocycloaddition Reaction of 1,4,5,8‐Tetraazaphenanthrene with Some Olefins.
Authors: SHIM S. C. , PARK S. K.
Published: May 2016

Die Bestrahlung von Tetraazaphenanthren (I) in Gegenwart der Olefine (IIa)‐(IIc) liefert stereoselektiv die [2 + 2]‐Cycloaddukte (IIIa) bis (IIIe).
ChemInform Abstract: Preparation and Properties of Tetracyanoquinodimethans Fused with Pyrazine Units.
Authors: YAMASHITA Y. , SUZUKI T. , SAITO G. , MUKAI T.
Published: May 2016

Die Chinodimethane (Ib) bzw. (IIIb) werden durch Titan(IV)‐chlorid‐katalysierte) Kondensation der Chinone (Ia) bzw. (IIIa) mit Malodinitril (II) hergestellt und ihre Reduktionspotentiale sowie Semichinon‐Bildungskonstanten bestimmt.
ChemInform Abstract: Diastereoselectivity and Reactivity in the Diels‐Alder Reactions of α‐Chloronitroso Ethers.
Authors: FELBER H. , KRESZE G. , PREWO R. , VASELLA A.
Published: May 2016

The structure of the α‐chloronitroso ether (III) obtained from the hydroximolactone (I) is established by X‐ray crystallographic analysis (space group P6,).
ChemInform Abstract: Synthesis of New Bis(acridinic) Derivatives Monobridged in Positions 2,2′ or 9,9′ and Bibridged in Positions 2,2′ and 9,9′.
Authors: AMMOR S. , GALY A.‐M. , GALY J.‐P. , BARBE J.
Published: May 2016

Acylation of the amino acridanones (Ia) or thioacridanones (Ib) [obtained from (Ia) by P4810 thiation] gives the bridged compounds(II)[iso1ated as the dihydrochlorides].
ChemInform Abstract: New Bicyclic Organylboronic Esters Derived from Iminodiacetic Acids.
Authors: MANCILLA T. , CONTRERAS R. , WRACKMEYER B.
Published: May 2016

Die Umsetzung der Boronsäuren oder Boronsäureester (I) mit den Iminodiessigsäuren (II) führt zu den bicyclischen Verbindungen (III), in denen die ausgeprägte intramolekulare koordinative N‐B‐Bindung eine beachtlich starre Struktur bewirkt.
ChemInform Abstract: Silicium Compounds with Strong Intramolecular Interactions. Part 24.
Authors: WEIDENBRUCH M. , THOM K.‐L.
Published: May 2016

Die Dihalogen‐tetramethyl‐disilane (VI) und (IX) werden ausgehend von Trichlorsilan (I) auf den im Schema angegebenen Wegen synthetisiert.
ChemInform Abstract: Chemistry of Weakly Solvated Lanthanide‐Metal Cations. Synthesis, Characterization, and Catalytic Chemistry of [Eu(CH3CN)3(BF4)3]x (I).
Authors: THOMAS R. R. , CHEBOLU V. , SEN A.
Published: May 2016

The title compound (I) is prepared in 63% yield by the oxidation of metallic Eu by NOBF4 in CH3CN.
ChemInform Abstract: Vanadium Phenolates as Models for Vanadium in Biological Systems.
Authors: BONADIES J. A. , CARRANO C. J.
Published: May 2016

The addition of NH4OH to a solution of the title ligand and VO2+ in water yields the complex (I) with an unusual structure containing the ligand in its racemic form.
ChemInform Abstract: Hydrocarbation‐Formation of Diiron μ‐Alkylidyne Complexes from the Addition of the Carbon‐Hydrogen Bond of a μ‐Methylidyne Complex Across Alkenes.
Authors: CASEY C. P. , MESZAROS M. W. , FAGAN P. J. , BLY R. K. , MARDER S. R. , AUSTIN E. A.
Published: May 2016

The cationic methylidyne Complex (I) with a relatively stable carbonium ion reacts with alkenes (II) and (V) to produce the alkylidyne Complexes (III) and (VI).
ChemInform Abstract: Ligation and Reduction of Iron(III) Porphyrins by Amines.
Authors: CASTRO C. E. , JAMIN M. , YOKOYAMA W. , WADE R.
Published: May 2016

The scope and mechanism of the title reaction are presented.
ChemInform Abstract: Some Molecular Hydrogen Complexes of Iridium.
Authors: CRABTREE R. H. , LAVIN M. , BONNEVIOT L.
Published: May 2016

H2 rapidly replaces the aquo ligand in the known complex (Ia) to give the dihydrogen hydride (IIa), whose identity is determined by 1H NMR methods.
ChemInform Abstract: Ribonucleosides of 3‐Amino‐ and 3,5‐Diaminopyrazole‐4‐carboxylic Acid and Their Open‐Chain Analogues: Synthesis and Reactions.
Authors: SPASSOVA M. K. , HOLY A. , MASOJIDKOVA M.
Published: May 2016

Silylation of the aminopyrazoles (I) affords (III).
ChemInform Abstract: Stereospecific Synthesis and Ring Closure of a Racemic Actinospectose Equivalent: A Concise Route to the Spectinomycin Series.
Authors: DANISHEFSKY S. , AUBE J. , BEDNARSKI M.
Published: May 2016

The approach to the Spectinomycin series involves the exchange of a β‐methoxy enone with a cyclitol to produce a substituted enone [(III) or (X)].
ChemInform Abstract: Preparation and Structure Investigation by X‐Ray Diffraction and NMR of the Fluoride LiZnF3.
Authors: PULCINELLI S. H. , SENEGAS J. , TANGUY B. , MENIL F. , PORTIER J.
Published: May 2016

Hyperquenching of molten mixtures in the LiF‐ZnF2 system has allowed to detect a Li2ZnF4 spinel phase and to isolate LiZnF3, which showes a new structure‐type for a fluoride.
ChemInform Abstract: Photoelectrochemical Investigations of Passive Films on Titanium Electrodes.
Authors: LEITNER K. , SCHULTZE J. W. , STIMMING U.
Published: May 2016

The results of photocurrent spectra and the potential dependence of the photocurrent measured at passive films formed on Ti electrodes in 1 M H2SO4 at constant potentials in the range 4‐105 V show four different types of film behavior depending on the film thickness.
ChemInform Abstract: Voltammetric Electro‐Oxidation of Carbon Monoxide Previously Adsorbed on Electrochemically Modified Platinum Electrodes.
Authors: LEIVA E. P. M. , SANTOS E. , GIORDANO M. C. , CERVINO R. M. , ARVIA A. J.
Published: May 2016

Two types of modified polycrystal‐ ‐ line Pt electrodes have been prepared.
ChemInform Abstract: Structures and Magnetic Properties of the New Ternary Silicides RMnSi2 (R: La‐ Sm) and RFeSi2 (R: La‐Nd).
Authors: VENTURINI G. , MALAMAN B. , MEOT‐MEYER M. , FRUCHART D. , LE CAER G. , MALTERRE D. , ROQUES B.
Published: May 2016

The title compounds have been prepared in a solid state reaction of the elements (1273 K, silica tube).
ChemInform Abstract: Solution Conformation of Aqueous Lanthanide(III)‐Antipyrine Complexes.
Authors: DU PREEZ A. L. , WILLIAMS R. J. P.
Published: May 2016

The conformations of 1anthanoide(IID‐antipyrine complexes in aqueous medium are studied by analysis of their ′H (for Pr, Eu, Tb, Dy, H0, Er, Tm, Yb) and 13C NMR (for Pr, Eu, Yb) spectra.
ChemInform Abstract: Optically Active Heteroaromatic Compounds. Part 9. The Synthesis of Monoalkyl‐ Substituted Optically Active Pyridines.
Authors: AZZENA U. , CHELUCCI G. , DELOGU G. , GLADIALI S. , MARCHETTI M. , SOCCOLINI F. , BOTTEGHI C.
Published: May 2016

Co(I)‐catalyzed co‐cyclotrimerization of the chiral nitriles (I) with acetylene (II) yields the optically active 2‐alkylpyridines (III).
ChemInform Abstract: Synthesis of 2‐(N‐Substituted‐arylcarbamoyl)‐quinazolin‐4(3H)‐ones and Benzofurans as Potential Anthelminthics.
Authors: SHUKLA J. S. , RASTOGI R.
Published: May 2016

Title compounds of type (III) and (V) are synthesized (yields only given for the model compounds) and screened for anthelminthic activity.
ChemInform Abstract: Radical Cations of Diesters: Generation by Irradiation and Detection by ESR.
Authors: RIDEOUT J. , SYMONS M. C. R.
Published: May 2016

Due to the delocalization between the two carbonyl groups in the prim. cations (I) and (II) generated radiolytically these species can be observed by ESR at 77 K in CF3Cl.
ChemInform Abstract: Crossed Ozonide Formation in the Ozonolysis of Styrene.
Authors: PAINTER M. K. , CHOI H.‐S. , HILLIG K. W. II , KUCZKOWSKI R. L.
Published: May 2016

The yields of the ozonides (IV) and (V) and the cleavage direction ratios of the prim. ozonide (III) are determined.
ChemInform Abstract: Reductive Alkylation of Aceheptylene. A Simple Route to a Series of Novel n‐Perimeters.
Authors: NEUMANN G. , MUELLEN K. +
Published: May 2016

1H and 13C NMR studies indicate that the dianion (II) of aceheptylene (I) tends to localize the greatest portion of the excess Charge at the inner angular carbon C‐10b. Methylation readily affords the products (IV), (V), and (VIb); in A NH3/THF solution only (VIa) is obtained.
ChemInform Abstract: Oxidative Cleavage of Some Aldazines.
Authors: DHAR D. N. , GUPTA S. R.
Published: May 2016

Under the reaction conditions indicated, the aldazines (I) can be cleaved to give the aldehydes (II).
ChemInform Abstract: Epoxidation of Isolated Double Bonds with 30% Hydrogen Peroxide Catalyzed by Pertungstate Salts.
Authors: PRANDI J. , KAGAN H. B. , MIMOUN H.
Published: May 2016

Es wird ein bequemes Verfahren zur Epoxidierung von Alkenen beschrieben, wobei mit 30°C /oigem Wasserstoffperoxid in Gegenwart eines quartären Phosphonium‐ oder Ammoniumperwolframates (II) als Katalysator gearbeitet wird.
ChemInform Abstract: Novel Products of 1,4‐Addition of Alcohols to 5‐Ethenyl‐3,4‐dihydro‐4‐isopropylidene‐2,2‐dimethyl‐2H‐pyrrole.
Authors: ZEZZA C. A. , SMITH M. B.
Published: May 2016

Reaction of the alcohols (Ia) and (Ib) with the ethenyl pyrrole (II) followed by distillation yields the ethers (III).
ChemInform Abstract: Photocyclization of NN‐Dialkyl β,γ‐Unsaturated Amides. 1,6‐Hydrogen Transfer via Charge‐Transfer States.
Authors: AOYAMA H. , ARATA Y. , OMOTE Y.
Published: May 2016

Threefold methylation of the amides (I) followed by dehydration yields the β,γ‐unsaturated amides (VI).
ChemInform Abstract: Asymmetric Synthesis of 1‐Methyl‐2‐(2‐hydroxyethyl)pyrrolidine.
Authors: NIKIFOROV T. , STANCHEV S. , MILENKOV B. , DIMITROV V.
Published: May 2016

Die im Titel genannte Verbindung (IX) wird ausgehend von 1‐(S)‐Phenethylamin (I) als chiraler Hilfskomponente und 4‐Chlorbuttersäurechlorid (II) auf dem im Schema angegebenen Weg synthetisiert.
ChemInform Abstract: Synthesis and Spectral Properties of Optically Active 2‐Ethylidene‐1,5‐ dimethyl‐ 3,3‐diphenylpyrrolidine: Primary Methadone Metabolite.
Authors: BRINE G. A. , BOLDT K. G. , BONDESON V. C. , CARROLL F. I.
Published: May 2016

Aus dem Aminonitril (Ia) erhältman mit Chlorameisensäureester das Urethan (Ib), das salzsauer zu (II) cyclisiert und weiter zu den enantiomeren Pyrrolidonen (III) hydrolysiert werden kann.
ChemInform Abstract: Synthesis of 4‐Cyanoindole from 4‐Oxo‐4,5,6,7‐tetrahydroindole Derivatives.
Authors: HATANAKA N. , MATSUMOTO M.
Published: May 2016

Die aus den 4‐Oxotetrahydroindolen (I) gut zugänglichen O‐silylierten Cyanhydrine (II) werden gemäß Schema in das 4‐Cyanindol (V) übergeführt.
ChemInform Abstract: Short Step Synthesis of 4‐Formylindole and Derivatives from 4‐Oxo‐ 4,5,6,7‐tetrahydroindole.
Authors: HATANAKA N. , WATANABE N. , MATSUMOTO M.
Published: May 2016

4‐Formylindol (V) ist aus den 4‐Oxo‐tetrahydroindolen (I) über die Dithioacetale (III), (VII) oder (X) auf den im Schema angegebenen Wegen zugänglich.
ChemInform Abstract: Selective Synthesis of the Two Diastereomers of 5‐Oxo‐1H‐pyrrolizine‐3‐carboxylic Acid.
Authors: TURNER W. W.
Published: May 2016

Aus dem Pyrrol‐aldehyd (I) erhält man mit dem cyclischen Malonester (II) über das Kondensationsprodukt (III) nach Hydrierung und Hydrolyse den Dicarbonsäureester (V).
ChemInform Abstract: An 3‐Indolyl‐imidazol‐4‐one from the Tunicate Dendrodoa grossularia.
Authors: GUYOT M. , MEYER M.
Published: May 2016

Das aus der Manteltier‐Art Dendrodoa grossularia isolierte Indolylimidazolon (V) läßt sich aus Indol (I) in der skizzierten Weise herstellen.
ChemInform Abstract: Behaviour of o‐Phenylenediamine and o‐Aminothiophenol with Azlactones.
Authors: HARB A.‐F. A. , ZAYED S. E. , EL‐MAGHRABY A. M. , METWALLY S. A.
Published: May 2016

Die Azlactone (I) kondensieren mit o‐Phenylendiamin (II) bzw. o‐Aminothiophenol (IV) beim Erhitzen mit Essigsäure/Natriumacetat direkt zu den Benzimidazolen (III) bzw. den Benzothiazolen (VI).
ChemInform Abstract: Heterocyclization of Compounds Containing Diazo and Cyano Groups.
Authors: SHAFRAN YU. M. , BAKULEV V. A. , MOKRUSHIN V. S. , VALIDUDA G. I.
Published: May 2016

Die α‐Diazo‐a‐cyanoessigsäurederivate (Ia)‐(Ic) bzw. das Keton (Id) cyclisieren mit Schwefelwasserstoff in Gegenwart von Triethylamin zu den 5‐Amino‐1,2,3‐thiadiazolen (II), die mit Ammoniak oder Methylamin beim Erhitzen zu den Mercaptotriazolen (III) isomerisieren.
ChemInform Abstract: Cinnamoylation of Chromans: Formation of Flavonoids and Neoflavonoids.
Authors: SURESH R. V. , IYER C. S. R. , IYER P. R.
Published: May 2016

Die Chromane (I) reagieren mit den Zimtsäuren (II) in Gegenwart von Zinkchlorid/ Phosphoroxychlorid zu den im Schema angegebenen Chalkonen (III), Dihydrocumarinen (IV) und (V) bzw. zu dem Flavanon (VI).
ChemInform Abstract: Formation of 2‐Phenyl‐γ‐benzopyrone (Flavone) in the Nucleophilic Reaction of 1‐(2′‐Hydroxyphenyl)‐3‐phenylpropyn‐2‐one with Potassium Thiocresolate.
Authors: KORSHUNOV S. P. , STATSYUK V. E. , KAZANTSEVA V. M. , BODRIKOV I. V.
Published: May 2016

Das Diphenylpropinon (I) reagiert mit dem Kaliumthiokresolat (II) zu dem Flavon (III), dem Z‐Additionsprodukt (IV) und dem Thiokresol (V).
ChemInform Abstract: Preparation and Stereochemistry of Phenolic 1‐Methyl‐3‐aryltetrahydroisoquinoline Derivatives.
Authors: BADIA D. , DOMINGUEZ E. , IRIONDO C. , DE MARIGORTA E. M.
Published: May 2016

Ausgehend von dem Aminonitril (I) und dem Benzylchlorid (II) wird auf dem im Schema angegebenen Weg ein chromatographisch trennbares Gemisch aus den cis‐ (V) und den trans‐Tetrahydroisochinolinen (VI) erhalten.
ChemInform Abstract: Synthesis of 5‐Oxo‐5H‐[1]benzopyrano[4,3‐b]pyridine Derivatives.
Authors: UKAWA K. , ISHIGURO T. , WADA Y. , NOHARA A.
Published: May 2016

Die Benzopyra‐ nocarbonitrile (I) kondensieren mit Malonsäurediamid (II) in Gegenwart von Natriummethanolat zu den Benzopyranopyridinen (III).
ChemInform Abstract: The Reaction of 1‐Alkoxycarbonyl‐1H‐azepine with Palladium Acetate in Benzene.
Authors: SAITO K.
Published: May 2016

Durch Erhitzen der N‐Alkoxycarbonylazepine (I) mit äquimolaren Mengen Palladiumacetat und überschüssigem Natriumacetat in Benzol werden nach Hydrolyse die Azabicycloheptenole (II) in mäßigen Ausbeuten erhalten.
ChemInform Abstract: Novel Synthesis of 3‐Cyano‐3,4‐dihydroquinolin‐2(1H)‐one and Derivatives and 2,3‐Dicarbomethoxy‐2‐hydroxycyclopenta[b]quinoline.
Authors: NEELIMA NEELIMA , BHAT B. , BHADURI A. P.
Published: May 2016

Aus den Chinolin‐3‐nitrilen (I) erhält man mit Boranat die Dihydroverbindungen (II), die zu den Dihydrochinolonen (III) hydrolysiert werden können.
ChemInform Abstract: Synthesis of 9,10,12,13,14,14a‐Hexahydrodibenzo[f,h]pyrrolo[2,1‐a]isoquinoline.
Authors: COPADO R. C. , GRANDE M. T. G. , TRIGO G. G. , SOELLHUBER M. M. K. +
Published: May 2016

Das Phenanthridyl‐pyrrolidin (I) wird mit Bromessigsäureester zu (IIa) substituiert und nach Hydrolyse zur freien Säure (IIb) zu dem Oxo‐Derivat (III) cyclisiert.
ChemInform Abstract: Pyrimidine Tetrasulphonic Acid.
Authors: YAGUPOL'SKII YU. L. , KOLYCHEVA M. T. , CHERKASOV V. M.
Published: May 2016

Das Trichlornitropyrimidin (I) reagiert mit Natriumsulfit unter Bildung des Natriumsalzes der Pyrimidintetrasulfonsäure (II).
ChemInform Abstract: Transformations of 2,4,5‐Trisubstituted Pyrimidines. The Synthesis and Transformations of Pyrimido[4,5‐d]pyrimidine, 1,2,4‐Triazolo[4,3‐a]pyrimidine, Tetrazolo[1,5‐a]pyrimidine, 1,2,4‐Triazolo[3,4‐b]purine and Tetrazolo[5,1‐b]purine Derivatives.
Authors: URLEB U. , STANOVNIK B. , STIBILJ V. , TISLER M.
Published: May 2016

Ausgehend von den Pyrimidinen (Ia) bzw. (Id) werden die im Titel genannten heterocyclischen Systeme (III), (VI), (VIII), (IX) und (X) nach den im Schema angegebenen Verfahren synthetisiert.
ChemInform Abstract: Preparation of Monoacylpyrazines.
Authors: HOUMINER Y. , SOUTHWICK E. W. , WILLIAMS D. L.
Published: May 2016

Die Pyrazine (I) werden unter Radikal‐bildenden Bedingungen mit den Aldehyden (II) zu den entsprechenden Acyl‐pyrazinen (III) umgesetzt.
ChemInform Abstract: A New Synthesis of Novel 1‐Aryl‐3‐heteroaryl‐1H‐pyrazolo[3,4‐b]quinoxalines via a Key‐Intermediate.
Authors: KURASAWA Y. , MURAMATSU M. , YAMAZAKI K. , TAJIMA S. , OKAMOTO Y. , TAKADA A.
Published: May 2016

Aus dem ungesättigten Ester(1) erhält man mit dem Diazoniumsalz (II) das Hydrazon (III), das mit Phosphoroxychlorid in die Chlorverbindung (IV) übergeführt wird.
ChemInform Abstract: Some Novel Halogenated Phenazine Derivatives.
Authors: TWOMEY D.
Published: May 2016

Die Iodierung der Phenazine (I) erfolgt im Phenazin‐Ring zu den Derivaten‐(II); diese können nicht acyliert werden.
ChemInform Abstract: Preparation of 5,5‐Dicyano‐ and 5‐Cyano‐5‐ethoxycarbonyl‐5,6‐dihydro‐ 3,7‐diphenyl‐4H‐1,2‐diazepines and Their Halogenations.
Authors: KAMATA K. , TSUGE O.
Published: May 2016

Aus a‐Brom‐acetophenon‐azin (I) erhält man mit den Nitrilen (II) die Dihydrodiazepine (III).
ChemInform Abstract: Tridecalino‐18‐crown‐6. Synthesis of Cylindrical Crown Ether.
Authors: KOBIRO K. , TAKAHASHI M. , TAKADA S. , KAKIUCHI K. , TOBE Y. , ODAIRA Y.
Published: May 2016

Die Synthese des "zylindrischen" Kronenethers (VII) wird beschrieben und seine Komplexierungsfähigkeit für Natrium‐ und Kaliumionen wird untersucht.
ChemInform Abstract: Proton‐Ionizable Crown Compounds. Part 3. Synthesis and Structural Studies of Ma‐ crocyclic Polyether Ligands Containing a 4‐Pyridone Subcyclic Unit.
Authors: BRADSHAW J. S. , NAKATSUJI Y. , HUSZTHY P. , WILSON B. E. , DALLEY N. K. , IZATT R. M.
Published: May 2016

Die Pyridin‐ 2,6‐dicarbonsäureester (I) werden zu den Diolen (II) reduziert.
ChemInform Abstract: Tin(IV) Chloride‐promoted Reactivity of β‐Dicarbonyls with Non‐electrophilically Activated Nitriles: Role of the Metal Centre.
Authors: CORAIN B. , LONGATO B. , BASATO M. , ANGELETTI R. , VERONESE A. C.
Published: May 2016

The addition reaction of ethylaceto‐ acetate (I) to propionitrile (II) in the presence of SnCl4 yielded a product (IV) which could be isolated as the adduct (III).
ChemInform Abstract: Cycloaddition Reactions of 2‐Tributylstannyl‐1,3‐butadiene.
Authors: TADDEI M. , MANN A.
Published: May 2016

1,4‐Butin‐2‐diol (I) addiert Tributy1zinnkupfer(II) zum Butendiol (III), das über (V) zum 2‐Tributylstannyl‐1,3‐butadien (VI) führt.
ChemInform Abstract: Electron‐Transfer Reactions in Nitrogen Fixation. Part 2. The Electrosynthesis of Ammonia: Identification and Estimation of Products.
Authors: PICKETT C. J. , RYDER K. S. , TALARMIN J.
Published: May 2016

Protonation of the complex (I) with TosOH gives the hydrazido cation complex (II).
ChemInform Abstract: Dialkylamino Phosphorus Metal Carbonyls. Part l. Mononuclear Derivatives from Reactions of Bis(diisopropylamino)phosphine with Metal Carbonyls.
Authors: KING R. B. , FU W.‐K.
Published: May 2016

The THF complexes (I) and (IVb) (generated in situ from Fe2(CO)9, the corresponding metal hexacarbonyls or (IVa) under photochemical conditions) react with the phosphine (II) to yield the air‐stable sublimable Compounds (III) or (V), respectively.
ChemInform Abstract: Reaction of Matrix‐Isolated Iron Atoms with Carbon Disulfide.
Authors: DOEFF M. M.
Published: May 2016

IR and 57Fe Möß‐ bauer spectroscopy show that the cocondensation of iron with CS2 in low‐temp.