bluuebunny/crossref_metadata_2025 huggingface dataset:
ChemInform Abstract: Synthesis of Quinazoline‐2,4,5,8(lH,3H)‐tetrones and Their Amine Nucleophilic Addition Chemistry.
Authors: SKIBO E. B.
Published: May 2016

Das Nitro‐dimethoxy‐benzamid (Ia) wird nach Reduktion zum Amin (Ib) über den Hanrstoff (Ic) alkalisch zu (IIa) cyclisiert, zu (IIb) nitriert und dann zu (IIc) reduziert und acetyliert.
ChemInform Abstract: Novel Photoinduced Functionalized C‐Alkylations in Purine Systems.
Authors: NAIR V. , CHAMBERLAIN S. D.
Published: May 2016

Photolyse des 6‐Iodpurins (I) in Ammoniak in Gegenwart der aus den Ketonen (II) in situ generierten Metall‐Enolate führt zu den 6‐substitutierten Purinen (III), die in unpolaren Lösungsmitteln bevorzugt in der Enolform vorliegen.
ChemInform Abstract: New Derivatives of 10,11‐Dihydro‐5H‐dibenzo[b,f]azepins with Antiarrhythmic Efficacy.
Authors: WUNDERLICH H. , STARK A. , CARSTENS E. , LOHMANN D. , GRIZENKO A. N. , SKOLDINOV A. P.
Published: May 2016

In Analogie zum antiarrhythmisch wirkenden Phenothiazin (I) wird die Synthese strukturverwandter Tricyclen (VIII) auf dem skizzierten Weg durchgeführt.
ChemInform Abstract: Photochemical Reduction of CpW(CO)3CH3 (Cp: η5‐C5H5) to CpW(CO)3‐; an Isolobal Analogy to the Disproportionation of Cp2Mo2(CO)6.
Authors: GOLDMAN A. S. , TYLER D. R.
Published: May 2016

Irradiation of (I) in inert solvents in the presence of PPh3 gives (II) as the PPh3Me salt as well as the substitution product (III).
ChemInform Abstract: Reactions of the Multiply Bonded Dirhenium Complexes [Re2X4(L ‐ L)2]n+ (X: Cl or Br, L ‐ L: Ph2PCH2CH2PPh2 or Ph2PCH2CH2AsPh2; n: 0 or 1) with Isocyanides and Nitriles. Reaction Without Metal ‐ Metal Bond Disruption.
Authors: ANDERSON L. B. , TETRICK S. M. , WALTON R. A.
Published: May 2016

The reaction of the paramagnetic title complex (I) with isocyanides R′NC proceeds with reduction of the dirhenium core to yield the diamagnetic Complexes (IIa), (IIb).
ChemInform Abstract: Asymmetric Synthesis of Helical Metallocenes.
Authors: SUDHAKAR A. , KATZ T. J.
Published: May 2016

As shown in the scheme it is possible to obtain the helical hydrocarbon (‐ )‐(V) with a right‐handed helix in excellent enantiomeric purity starting from racemic (I) and optically active (II) by photocyclization of the precursor (III) followed by ROH elimination.
ChemInform Abstract: Reaction Intermediates of cis‐Diammineaqua(hydroxo)platinum(II) with Guanosine 5′‐Monophosphate Characterized by Proton NMR Spectroscopy.
Authors: FANCHIANG Y.‐T.
Published: May 2016

The reaction between guanosine 5′‐monophosphate and (I) proceeds with stoicheiornetry L:Pt of 1.8 : l .0 yielding N(7) bound (IV) as the predominant product.
ChemInform Abstract: Binuclear Methylplatinum(II) Complexes. The Molecular Structure and Fluxional Behaviour of the Face‐to‐face Dimer Pt2I2Me2(μ‐Me2PCH2PMe2)2.
Authors: MANOJLOVIC‐MUIR L. , LING S. S. M. , PUDDEPHATT R. J.
Published: May 2016

The complex (II) is obtained by reaction of two equiv. of HCl with the compound (I).
ChemInform Abstract: New Saponins and a Prosapogenin from Polygala chamaebuxus L.
Authors: HAMBURGER M. , HOSTETTMANN K.
Published: May 2016

The glycosides (Ib) and (Ic) of the hitherto undescribed triterpene (Ia) have been isolated.
ChemInform Abstract: New Synthesis of Olivacine via Heteroarylation.
Authors: NAITO T. , IIDA N. , NINOMIYA I.
Published: May 2016

Heteroarylation with indole (I) and 4‐substituted pyridines (II) in the presence of an acylating agent (III) results in formation of the condensation products (IV).
ChemInform Abstract: Stereoselective Total Synthesis of Testosterone and Androsterone via A/B‐Ring Construction of the Steroidal Ring System by Intramolecular Diels‐Alder Reaction.
Authors: IHARA M. , SUDOW I. , FUKUMOTO K. , KAMETANI T.
Published: May 2016

As illustrated in the scheme, a total synthesis of testosterone (XIII) is possible starting from the reaction between the indanone (I) and the dioxolane (II).
ChemInform Abstract: Thin Film Properties of Sputtered Niobium Silicide on SiO2, Si3N4, and N+ Poly‐Si.
Authors: CHOW T. P. , LU W. J. , STECKL A. J. , BALIGA B. J.
Published: May 2016

Properties of niobium silicide films sputtered from a slightly Si‐rich (Si/Nb ≈︁ 2.3), cold‐pressed target onto SiO2, n+ doped poly‐Si, and Si3N4 have been investigated.
ChemInform Abstract: Modulation of the Iron Tetrahedra Driven by Interactions with R Atoms in R1+εFe4B4 compounds.
Authors: GIVORD D. , TENAUD P. , MOREAU J. M.
Published: May 2016

The crystal structure of the title compounds (R: rare earth element) has been described as resulting from essentially two independent substructures.
ChemInform Abstract: Studies Using Microelectrodes of the Mg(II)/Mg Couple in THF and Propylene Carbonate.
Authors: GENDERS J. D. , PLETCHER D.
Published: May 2016

From a solution of a Grignard reagent, 0.5 M EtMgBr in THF, it is possible both to electroplate Mg onto Cu and to redissolve it anodically with high coulombic efficiency.
ChemInform Abstract: Effect of Oxygen on the Open‐Circuit Passivity of Fe ‐ 18 Cr.
Authors: COVINO B. S. JUN. , ROSEN M. , DRISCOLL T. J. , MURPHY T. C. , MOLOCK C. R.
Published: May 2016

The critical amount of O2 necessary to prevent corrosion by maintaining the open‐circuit passivity of Fe‐18 Cr samples initially passivated at 0.6 V (NHE) in N2‐saturated IN H2SO4 has been determined to be 1.7 ppm O2.
ChemInform Abstract: Reduction of Peroxotitanium(IV) by Sulfur(IV), Iron(II), and Titanium(III) in Acidic Solution.
Authors: THOMPSON R. C.
Published: May 2016

The net reduction of TiOä+ by sulfur(IV) in acidic solution proceeds via Aand B. A is the rate‐determining step.
ChemInform Abstract: Chloro Rhodates(III) (RhCl6)3‐ and RhCl5(H2O)2‐. Crystal Structure of (NH4)3RhCl6·H2O.
Authors: TREIBER U. , ZWILLING M. , SCHWEDA E. , STRAEHLE J. +
Published: May 2016

(NH4)3RhCl6‐ H2O which has been prepared by slow evaporation of an aqueous solution of RhCl3 and excess NH4Cl, crystallizes in the orthorhombic system (Pnma, Z=4).
ChemInform Abstract: Geometrical Characteristics from Experiment and Theory of Isostructural Complexes Involving Palladium ‐ and Platinum ‐ Methyl Bonds.
Authors: WISNER J. M. , BARTCZAK T. J. , IBERS J. A. , LOW J. J. , GODDARD W. A. III.
Published: May 2016

Pd(II) and Pt(II) systems often show different chemistry in oxidative addition and reductive elimination reactions.
ChemInform Abstract: Electrochemical Behaviour of Cyclopolysilanes. Oxidation Potentials via Cyclic Voltammetry.
Authors: WATANABE H. , YOSHIZUMI K. , MURAOKA T. , KATO M. , NAGAI Y. , SATO T.
Published: May 2016

Die anodische Oxidation der Cyclopolysilane (I) wurde mittels cyclischer Voltammetrie untersucht und mit UV‐Daten korreliert.
ChemInform Abstract: A Novel Deoximation of Aldoximes by Pyridinium Chlorochromate in Presence of Di‐ cyclohexylcarbodiimide.
Authors: NEELIMA NEELIMA , BHAT B. , BHADURI A. P.
Published: May 2016

Durch das neue,im Titel genannte Verfahren lassen sich die Aldehyde (II) aus den Aldoximen (I) problemlos zurückgewinnen.
ChemInform Abstract: Diels‐Alder Adducts of the Diphosphene CF3P = PCF3.
Authors: GROBE J. , LE VAN D. , SCHULZE J.
Published: May 2016

Diels‐Alder Adducts of the Diphosphene CF3P = PCF3.
ChemInform Abstract: Reactions of 2‐Aminooxazoles and 2‐Aminothiazoles with Dienophiles.
Authors: CRANK G. , KHAN H. R.
Published: May 2016

Aus den 2‐Amino‐oxazolen (I) und Acetylendicarbonsäureester (II) entstehen die Addukte (III) und (IV), wobei (IIIe) und (IIIf) über die Zwischenstufe (V) zu dem Oxabicycloheptadien (VI) weiterreagieren können.
ChemInform Abstract: A Novel Photocatalytic Process of Amine N‐Alkylation by Platinized Semiconductor Particles Suspended in Alcohols.
Authors: OHTANI B. , OSAKI H. , NISHIMOTO S. , KAGIYA T.
Published: May 2016

The incorporated alkyl chains of the sec. or tert. amines (III), (IV), (VI), and (VII) originate from the solvent alcohols.
ChemInform Abstract: Carbene and Silicon Routes Toward a Simple Nitrile Ylide. Spectroscopic, Kinetic and Chemical Characterization.
Authors: TURRO N. J. , CHA Y. , GOULD I. R. , PADWA A. , GASDASKA J. R. , TOMAS M.
Published: May 2016

Trimethylsilylmethyl‐tri?at (I) reagiert mit Acetonitril und Thiophenol (III) zu dem Phenylthio‐silylimidat (IV), das mit Silber‐ fluorid zum Methylnitril‐Ylid (V) gespalten wird.
ChemInform Abstract: Oxidation of Alcohols and Diols by Ti(O ‐ iPr)4 ‐ tBu ‐ OOH System.
Authors: YAMAWAKI K. , ISHII Y. , OGAWA M.
Published: May 2016

The alcohols (Ia)‐(Id) are oxidized by tert.‐butyl peroxide in the presence of catalytic amounts of Ti(IV)‐isopropoxide to give the corresponding ketones (II).
ChemInform Abstract: Aromatic Thallation and Nitration with Thallium(III) Nitrate .
Authors: UEMURA S. , TOSHIMITSU A.
Published: May 2016

Treatment of the substituted benzenes (Ia) with thallium(III) nitrate trihydrate gives, by competing reactions, the products (IIa) (with high p‐selectivity) and (IIIa) (o/p‐mixtures).
ChemInform Abstract: Synthesis of β,γ‐Unsaturated Carboxylic Acid Derivatives by the Novel Ni(CO)4 ‐Induced Ring‐Opening Carbonylation Reaction of 1,1‐Dibromo‐2‐chlorocyclopropanes.
Authors: HIRAO T. , NAGATA S. , AGAWA T.
Published: May 2016

Die Dibromchlorcyclopropane (I) liefern mit Ni(CO)4 und Alkoholen oder Aminen (II) die ringgeöffneten Verbindungen (III) und (IV) neben den Chlorcyclopropancarbonsäurederivaten (V).
ChemInform Abstract: Syntheses of Functionalized Allylic and Allenic Alcohols from α‐Phenylselenated Carbonyl Compounds.
Authors: LEROUGE P. , PAULMIER C.
Published: May 2016

Die durch Reaktion der Ketone (I) mit den Wittig‐Reagentien (II) erhaltenen Selenide (III) lassen sich in die allylischen Alkohole (IV) überführen.
ChemInform Abstract: Horner‐ Emmons Approach to Cumulatrienes.
Authors: MACOMBER R. S. , HEMLING T. C.
Published: May 2016

Der Einsatz eines Überschusses an NaH bei der Reaktion zwischen dem Phosphonat (Ia) und Benzophenon (II) führt zwar prim. zur Bildung des gewünschten Cumulatriens (Va) (Identifizierung durch TLC und 1H‐NMR), jedoch läßt sich nach kompletter Umsetzung von (Ia) lediglich das konjugierte Allen (III) isolieren.
ChemInform Abstract: Preparation and Properties of 1‐tert.‐Butylthio‐1(Z)‐alkene‐3‐ols.
Authors: RUEL O. , BIBANG BI EKOGHA C. , LORNE R. , JULIA S. A.
Published: May 2016

Titelverbindungen vom Typ (III) werden durch Reaktion der Alkinole (I) mit dem Thiol (II) synthetisiert.
ChemInform Abstract: Regioselective Acylations and Alkylations of an Antiglaucomatous β‐Amino Alcohol.
Authors: BOUZOUBAA M. , LECLERC G. , EHRHARDT J.‐D. , ANDERMANN G.
Published: May 2016

Eine Reihe von Acylierungs‐ und Alkylierungsreaktionen wird an Falintolol (Ia) und einigen seiner Derivate untersucht und ergibt die Produkte (Ib)‐(If) sowie (II) und (III).
ChemInform Abstract: [p‐[Thienylcarbonyl)amino]phenoxy]propanolamines Derivatives as Diuretic and β‐Adrenergic Receptor Blocking Agents.
Authors: BOULEY E. , TEULON J.‐M. , CAZES M. , CLOAREC A. , DEGHENGHI R.
Published: May 2016

Die aus den Thienylalkancarbonsäurechloriden (I) über (III) zugänglichen Amide (V) werden auf ihre Aktivität als β‐adrenerge Rezeptoren‐ Blocker und als Diuretica geprüft, von denen die Verbindung (VI) als die wirksamste für weitere Untersuchungen ausgewählt wird.
ChemInform Abstract: 4‐Arylazo‐3,5‐diaminoisoxazole: Synthesis and Some Chemical Reactions.
Authors: ZAYED E. M. , GHOZLAN S. A. S.
Published: May 2016

The title compound (IIa) adds acrylonitrile and ethyl α‐cyanocinnamate to give the dihydro‐isoxazolopyrimidines (III) and (V).
ChemInform Abstract: The Stereochemistry of Sulfonium Ylides Derived from 9‐Alkylidenethioxanthenes.
Authors: KLUBA M. , HARWOOD J. , CASEY P. K. , TERNAY A. L. JUN.
Published: May 2016

Aus dem Keton (I) entstehen nach bekannten Verfahren die Alkylidenverbindungen (II), die mit Diazomalonester (III) zu den S‐Yliden (IV) führen.
ChemInform Abstract: Stereoselective Syntheses of the trans‐Decahydroquinoline‐5‐carboxylic Acid Epimers.
Authors: WITIAK D. T. , PATCH R. J. , ENNA S. J. , FUNG Y. K.
Published: May 2016

Die aus dem vinylogen Amid (I) durch Reduktion erhaltene trans‐Verbindung (II) wird gemäß Formelschema über die Schlüsselverbindung (V) und (X) in die gesuchten epimeren trans‐Decahydrochinolincarbonsäuren (VII) und (XII) umgewandelt.
ChemInform Abstract: A New Mild Synthesis of 1‐Aminoisoquinoline.
Authors: BRETTLE R. , MOSEDALE A. J.
Published: May 2016

Anovel and facile method of preparation of the title compound (IV) is described, the key step being the intramo1ecular amine‐nitrile reaction of the amide (III).
ChemInform Abstract: Synthesis of Some 3‐Methylisoquinoline Derivatives and Related Products in Search for Potential Trypanocides.
Authors: DAS M. , CHAUDHURI S. , CHAKRAVORTI S. S.
Published: May 2016

Die Cyclisierung des Amids (I) ergibt je nach Reaktionsbedingung die Produkte (II)‐(IV).
ChemInform Abstract: 1,4‐Dithiane‐2,5‐dicarboxylic Acid.
Authors: KARIMOVA N. M. , KUZINA L. P. , KIL'DISHEVA O. V.
Published: May 2016

Während der Diacetylthiopropionsäureester (I) unter Baseneinfluß neben der Dimercaptopropionsäure (IIa) und deren Ester (IIb) zu der Dithiancarbonsäure (IIIa) reagiert, dimerisieren die Thioglycidsäure bzw. deren Derivate (IV) nicht, sondern bilden unter Schwefelabspaltung die (Juli‐ungesättigten Verbindungen (V).
ChemInform Abstract: Novel Colorants Based on the 9‐Oxo‐1,9a,10‐triaza‐9‐hydroanthracene Chromophoric System.
Authors: MARRACCINI A. , PASQUALE A.
Published: May 2016

Aminochinazolinon (I) reagiert bei höherer Temperatur mit den α‐Diketonen (II) zu den kondensierten Heterocyclen (III), deren Farbeigenschaften auf Polyester, PVC und Polyester/ Baumwolle diskutiert werden.
ChemInform Abstract: Alkylated Derivatives of Uracil. Part 10. Synthesis of 2,4‐Diketo‐5,6,7,8‐tetrahydroquinazoline.
Authors: PECZAK G. , DRAMINSKI M.
Published: May 2016

The Starting compounds (I) are prepared according to published procedures.
ChemInform Abstract: (o‐ and p‐Nitrobenzyloxycarbonyl)‐5‐fluorouracil Derivatives as Potential Conjugated Bioreductive Alkylating Agents.
Authors: LIN T.‐S. , WANG L. , ANTONINI I. , COSBY L. A. , SHIBA D. A. , KIRKPATRICK D. L. , SARTORELLI A. C.
Published: May 2016

Fluoruracile (I) reagieren mit (II) und (IV) zu den Derivaten (III), die auf Wirkung gegen P388‐Leukämie und Sarcoma 180 untersucht werden.
ChemInform Abstract: The Synthesis of Asymmetrie Macrocyclic Polyethers Containing Nitro Group on Aromatic Ring.
Authors: KILIC Z. , GUENDUEZ N. +
Published: May 2016

The diol (I), prepared by heating of p‐nitrophenol with formaldehyde in diluted sulfuric acid (yield 90%), is condensed with the bis‐tosylates (II) to give the macrocyclic polyethers (III).
ChemInform Abstract: Hydrosilylation of Acetylene and Monoorganylacetylenes in the Presence of Rhodium Compounds.
Authors: PUKHNAREVICH V. B. , USHAKOVA N. I. , ADAMOVICH S. N. , TSYKHANSKAYA I. I. , VARSHAVSKII YU. S. , VORONKOV M. G.
Published: May 2016

Die Verwendung des Rhodiumkomplexes (III) gestattet die Hydrosilylierung von Acetylen (I) mit den Silanen (II) zu den Vinylsilanen (IV) in hohen Ausbeuten bei nur spurenweiser Bildung der Bis‐Addukte (V).
ChemInform Abstract: Optically Active Triorganosilyl Esters of Phosphorus. Synthesis and Structure.
Authors: CHOJNOWSKI J. , CYPRYK M. , MICHALSKI J. , WOZNIAK L. , CORRIU R. , LANNEAU G.
Published: May 2016

Various silyl esters of phosphorus (I) and (II) are synthesized, including (Ia) and (Ic) with the optical activity located on Si, (Ib) and (II) with the activity on Si or Pand on both these centres, and (Id) only racemic.
ChemInform Abstract: (β‐Chloro‐α‐aminoethyl)phosphonic Acids as Inhibitors of Alanine Racemase and D‐ Alanine:D‐Alanine Ligase.
Authors: VO‐QUANG Y. , CARNIATO D. , VO‐QUANG L. , LACOSTE A.‐M. , NEUZIL E. , LE GOFFIC F.
Published: May 2016

Ausgehend vom Phosphonsäureester (I) werden die Phosphonsäuren (III), (IV) und (VI) dargestellt, deren inhibierende Wirkung auf Alanin‐ Racemasen und D‐Alanin:D‐Alanin‐Ligasen aus Pseudomonas aeruginosa und Streptocoecus faecalis untersucht wird.
ChemInform Abstract: Aryltin(IV)trifluoroacetates.
Authors: MIDHA A. , VERMA R. D.
Published: May 2016

Aus den Chloriden (I) werden die Arylzinn(IV)‐trifluoracetate (II) erhalten.
ChemInform Abstract: Synthesis and Characterization of New Chromium(III) Complexes of Macrocyclic Ligands.
Authors: NAIR B. U. , RAMASWAMY D. , RAMASAMI T.
Published: May 2016

Durch Reaktion des Liganden mit [Cr(H2O)6]" in entlüftetem DMF bzw. MeOH und Luftoxidation wurden (Ia) bzw. (II) dargestellt.
ChemInform Abstract: Solid‐State Structure of α‐Mo2Cl4(dppe)2 and Its Transformation to β‐Mo2Cl4(dppe)2.
Authors: AGASKAR P. A. , COTTON F. A.
Published: May 2016

Die Diphosphin‐verbrückte a‐Titelverbindung, deren Molekül‐ und Kristallstrukturdaten (RG C2/ c, Z=4) röntgenographisch bestimmt werden, lagert sich bei 250°C im Vakuum innerhalb vonzwei Tagen quantitativ zum IR‐spektroskopisch charakterisierten β‐Isomeren um.
ChemInform Abstract: Metal Alkoxides ‐ Metal Alkoxides ‐ Models for Metal Oxides. Part 9. Hydridoditungsten Alkoxides: W2(H)(O‐iPr)8Na·diglyme and W2(H)(I)(OCH2‐tBu)6(H2NMe). Further Investigations of the Reaction Between W2(NMe2)6(M≡M) and iPrOH Leading to W4(H)2(O‐iPr)14.
Authors: CHISHOLM M. H. , HUFFMAN J. C. , SMITH C. A.
Published: May 2016

Reaction between W2(NMe2)6(Ws W) and iPrOH ( 6 equiv.), which leads to the known compound (I), is shown to be critically dependent on the presence of the liberated amine.
ChemInform Abstract: Magnetic and Spectroscopic Studies of New Electrically Conducting Copper Complexes: 7,7,8,8‐Tetracyanoquinodimethanides of Copper Chelates with Di‐2‐pyridylamine.
Authors: INOUE M. , INOUE M. B.
Published: May 2016

The electrically Conducting complexes CuL2(TNCQ)2, CuL2(TNCQ)2‐ H2O, and CuL(TNCQ)2 (L: di‐2‐pyridylamine; TNCQ: 7,7,8,8‐tetracyanoquinodimethan) are obtained by reactions of [CuL"]" and TNCQ".
ChemInform Abstract: Copper Complexes of Binucleating N,N′‐Hydroxyalkyldiaminebis(salicylidine) Ligands Containing a Cu ‐ O ‐ Cu Bridge and an Exogenous Bridge.
Authors: BUTCHER R. J. , DIVEN G. , ERICKSON G. , MOCKLER G. M. , SINN E.
Published: May 2016

Bestimmte Typen Schiffscher Basen bilden mit Cu zweikernige Komplexe mit einer einzelnen Sauerstoffbrücke und einem weiteren Brückenliganden, der eine deprotonierte Carbonsäure wie in (I) oder deprotoniertes Pyrazol wie in (III) sein kann.
ChemInform Abstract: Synthesis and Structure of Au6(CH3C6H4CS2)6, a Novel Gold Cluster Compound.
Authors: SCHUERMAN J. A. , FRONCZEK F. R. , SELBIN J.
Published: May 2016

The new gold title compound (I) is prepared by addition of NaAuCl4‐2 H2O to the Pr4N+ salt of the ligand, each dissolved in DMF, in a 2:1 ligand to metal molar ratio (no yield given).
ChemInform Abstract: Organometallic Derivatives of the Tetrathiometallates: Syntheses, Structures, and Reactions of MS4[Rh(COD)]2 and MS4[(C5H5)Ru(PPh3)]2 (M: Mo, W).
Authors: HOWARD K. E. , RAUCHFUSS T. B. , RHEINGOLD A. L.
Published: May 2016

The complex (III) is prepared by the reaction of stoichiometric quantitites of (I) with (II) in acetonitrile.
ChemInform Abstract: Inhibition of Cell Growth and [3H] Thymidine Incorporation in Human Mammary Carcinoma Cell Line MDA‐MB 231 by PtCl2 Complexes of 1.2‐Diaminoethanes Derived from Amino Acids.
Authors: BRUNNER H. , SCHMIDT M. , UNGER G. , SCHOENENBERGER H. +
Published: May 2016

The diamines (II) were synthesized from the L‐amino acids (I) and transformed into the Pt complexes (III).
ChemInform Abstract: Methods for Indole Alkaloid Synthesis. A Specific Procedure for Introducing the 6,7 Double Bond into Aspidosperma‐Type Alkaloids via Thiolactam Dehydrogenation.
Authors: MAGNUS P. , PAPPALARDO P. A.
Published: May 2016

Reaction of the indole (I) with the amines (II) gives the imines (III), which are treated with the mixed anhydride (IV) to afford the tetracyclic lactam (V).
ChemInform Abstract: Preparative Bioorganic Chemistry. Part 7. New Synthesis of (+)‐6a‐Carbaprostaglandin I2 Employing Yeast Reduction of a β‐Keto Ester Derived from cis‐Bicyclo[3.3.0]octane‐3,7‐dione as the Key Step.
Authors: MORI K. , TSUJI M.
Published: May 2016

The diketone (I) is converted to its monoacetal (III) and ethoxycarbonylated to afford the β‐keto ester (±)‐(V).
ChemInform Abstract: Cycloheximide Analogues as Potential Anticonvulsants.
Authors: PIATAK D. M. , TANG P. L. , YEN C.‐C.
Published: May 2016

Dargestellt und auf antikonvulsive Wirkung untersucht werden die Cycloimide (I) und (II).
ChemInform Abstract: Dipole Moment in Relation to H2 Receptor Histamine Antagonist Activity for Cimetidine Analogues.
Authors: YOUNG R. C. , DURANT G. J. , EMMETT J. C. , GANELLIN C. R. , GRAHAM M. J. , MITCHELL R. C. , PRAIN H. D. , ROANTREE M. L.
Published: May 2016

H2‐Rezeptor‐Histaminantagonisten wie (III)‐(VI) werden in überwiegend literaturbekannter Weise synthetisiert und hinsichtlich ihrer Aktivität mit Cimetidin (VII) verglichen.
ChemInform Abstract: Electrical Conductivities of Sodium Bromide in Formamide‐Water Mixtures.
Authors: DOMENECH J. , RIVERA S.
Published: May 2016

The electrical conductivities of NaBr solutions and the polarographic characteristics of Br′ are determined in different formamide‐water mixtures at 25°C. From these data the corresponding limiting equivalent conductances for Na+ and Br′ are calculated.
ChemInform Abstract: Demonstration of Contact Induced Ion Exchange in Zeolites.
Authors: FYFE C. A. , KOKOTAILO G. T. , GRAHAM J. D. , BROWNING C. , GOBBI G. C. , HYLAND M. , KENNEDY G. J. , DESCHUTTER C. T.
Published: May 2016

By means of a mixture of crystals of Li+Aand Na+A, it is demonstrated that cation exchange can occur between different zeolite crystals based only on a simple physical contact between the crystallites.
ChemInform Abstract: Systematic Design of Chemical Oscillators. Part 33. Mechanism for the Oscillatory Bromate‐ Iodide Reaction.
Authors: CITRI O. , EPSTEIN I. R.
Published: May 2016

A mechanism is developed which consists of 13 elementary steps and involves IBr but does not contain any radical species.
ChemInform Abstract: Measurement of the Absolute Third‐Order Rate Constant for the Reaction Between K + I + He by Time‐Resolved Atomic Resonance Fluorescence Monitoring of Iodine Atoms in the Vacuum Ultraviolet
Authors: PLANE J. M. C. , HUSAIN D.
Published: May 2016

The third‐order rate constant of the title reaction is found to be k1(567 K) = 3.04·10‐31cm6atom‐2s‐1.
ChemInform Abstract: Formation of the Active Form of Re2O7 / SiO2 Catalyst in Olefin Metathesis.
Authors: EDREVA‐KARDJIEVA R. M. , ANDREEV A. A.
Published: May 2016

Formation, structure, and catalytic activity of Re2O7/SiO2 in olefin metathesis in the low temp. range (25‐220°C) has been investigated in order to clarify the effect of a support which is more covalent than Al2O3.
ChemInform Abstract: N2H6Br2·2 H2O : Synthesis, Crystal Structure and Proton Conductivity.
Authors: DUCOURANT B. , MULA B. , FOURCADE R.
Published: May 2016

The title compound isolated from an aqueous solution of N2H4‐ H2O and HBr (40%) crystallizes in the monoclinic system (space group P21/n with Z=2).
ChemInform Abstract: NMR Investigation of the Lanthanide Complexes with a 14‐Membered Polyaza Polyacetic Macrocycle, TETA.
Authors: DESREUX J. F. , LONCIN M. F.
Published: May 2016

The title ligand (I) forms unusually rigid lanthanide complexes (lanthanide ions: Pr, Eu, Tb, Yb, Lu) the solution properties of which have been investigated after deuterium labelling of the ligand.
ChemInform Abstract: Indirect Electrochemical Side ‐ Chain Oxidation of Alkyl Aromatic Compounds. Selective Synthesis of Methyl Benzoates or ortho‐Benzoic Acid Trimethylesters.
Authors: GROSSE BRINKHAUS K.‐H. , STECKHAN E. , DEGNER D.
Published: May 2016

The indirect electrochemical oxidation of the toluenes (I) is mediated by the cation radical formed from tris(2,4‐dibromophenyl amine) proceeding anodically (at 1.56 V vs.
ChemInform Abstract: Diels‐Alder and Ene Reactions of 4‐Substituted 1,2,4‐Triazoline‐3,5‐ diones and Some Substituted Styrenes.
Authors: LAI Y.‐C. , MALLAKPOUR S. E. , BUTLER G. B. , PALENIK G. J.
Published: May 2016

Styrole (I) reagieren mit den Triazolindionen (II) über die Primär‐Addukte (III) zu den Bis‐Addukten (IV) und (V); aus dem 2,6‐Dichlorstyrol (VI) und (II) werden die Mono‐Addukte (VII) und nach Umlagerung (VIII) gebildet.
ChemInform Abstract: Intramolecular [2 + 2] Cycloadditions of Phenoxyketenes.
Authors: BRADY W. T. , GIANG Y. F.
Published: May 2016

Die aus den o‐Alkenylphenoxyessigsäuren (I) und (IV) in situ erzeugten Phenoxyketene (II) und (V) reagieren in einer intramolekularen [2 + 2]‐Cycloaddition zu den tricyclischen Cyclobutanonen (III) und (VI).
ChemInform Abstract: Thermolysis of Highly Congested Tri‐tert‐alkylmethanols: Strain Energies of Bridgehead Alkyl Radicals.
Authors: LOMAS J. S.
Published: May 2016

Trisubstituierte Methanole mit z.B. tert.‐Butyl‐, 1‐Adamantyl‐, 1‐Bicyclo[2.2.2]octyl‐ und 1‐Norbornyl‐Resten werden der Thermolyse unterworfen, die Kinetik und die entstehenden Produkte bestimmt.
ChemInform Abstract: Acetylative Cleavage of (Arylsulfonyl)ureas to N‐Acetylarenesulfonamides and Isocyanates.
Authors: NAGASAWA H. T. , SMITH W. E. , KWON C.‐H. , GOON D. J. W.
Published: May 2016

Aus den Arylsulfonyl‐harnstoffen (I) erhält man mit den Anhydriden (II) unter Spaltung die acylierten Sulfonamide (III), wobei die Isocyanate (IV) z.Tl. als Nebenprodukte isoliert werden können.
ChemInform Abstract: Diethoxydiphenylpolystyrylphosphorane: A New Polymeric Reagent for the Efficient Cyclodehydration of Simple Diols.
Authors: KELLY J. W. , ROBINSON P. L. , EVANS S. A. JUN.
Published: May 2016

Aus einem vernetzten Polystyrol sind die Diphenylphosphine (I) zugänglich, die mit Diethylperoxid zu den Diethoxy‐diphenyl‐phosphoranen (III) führen.
ChemInform Abstract: Cycloaromatization of α‐Oxoketendithioacetals with Benzylmagnesium Chloride: A Novel Naphthalene Annelation Reaction.
Authors: BALU M. P. , SINGH G. , ILA H. , JUNJAPPA H.
Published: May 2016

Aus α‐Oxo‐keten‐dithioacetalen (I) erhält man bei der Behandlung mit Benzylmagnesiumchlorid (II) über Zwischenstufen wie (III)‐(V) unter Anellierung die 1‐Benzylnaphthaline (VI).
ChemInform Abstract: Ultrasound in Phosphine Preparation. Simple Preparations of Some Bis‐(alkylphenylphosphino)alkanes.
Authors: CHOU T. , TSAO C.‐H. , HUNG S. C.
Published: May 2016

Bei der Behandlung mit Lithium unter Ultraschall‐Bestrahlung erhält man aus den Bis‐(diphenylphosphin)‐alkanen (I) die Dianionen (II), die nach Abfangen der mitentstandenen Phenylanionen (III) durch deren Umsetzung mit tert.‐Butylchlorid weiter mit Methyliodid zu (IV) bzw. mit Cyclohexylbromid zu (V) reagieren.
ChemInform Abstract: Pd(II)‐Mediated Oxidation of Olefins Using the Transannular Ozonides of 9‐tert‐ Butylanthracenes as an Oxygen Atom Source.
Authors: MATSUURA A. , ITO Y. , MATSUURA T.
Published: May 2016

Aus den Anthracenen (I) sind die cyclischen Peroxide (II) zugänglich, die mit den Styrolen (III) in Gegenwart von Pd(II)‐Salzen zu den Anthracen‐Derivaten (IV)‐(VI) und den Acetophenonen 41 (VII), mit Stilben (VIII) zu (IV)‐(VI) und dem Epoxid (IX) führen.
ChemInform Abstract: Catalytic Hydroxylation on Aromatic Rings by Use of an Artificial P‐450 System Assisted by Acid and Acid Anhydride.
Authors: TABUSHI I. , MORIMITSU K.
Published: May 2016

In Gegenwart von Wasserstoff, Sauerstoff, Pt und TPPMangan oder dem Ni‐Komplex (VIII) erhält man aus Benzol (I) Phenol (II).
ChemInform Abstract: The Reaction of Dichlorocarbene with Tertiary Carboxamides. Preparation of α‐Chloromethylenelactams and (E)‐Chloroacrylamides.
Authors: MARCOS M. , CASTRO J. L. , CASTEDO L. , RIGUERA R.
Published: May 2016

Treatment of the lactams (I) or (III) with dichlorocarbene under phase transfer conditions yields the α‐chloromethylene compounds (II) or (IV).
ChemInform Abstract: Indane‐1,3‐dione, Phthalimidine and Phthalide Derivatives as Alkylating Agents.
Authors: BARILI P. L. , SCARTONI V.
Published: May 2016

Die Kationen (II) werden ausgehend von (I) oder (III) mit Säuren hergestellt und dann mit den Phenolen (IV) in hohen Ausbeuten zu (V) umgesetzt.
ChemInform Abstract: Sn(II)‐Al‐Promoted Allylation of Aldehydes with Allyl Chloride in an Aqueous Solvent System.
Authors: UNEYAMA K. , KAMAKI N. , MORIYA A. , TORII S.
Published: May 2016

Die Allylierung von Aldehyden (I) mit Allylchlorid (II) zu den Alkoholen (III) verläuft in guten Ausbeuten in Gegenwart von Zinn(II)‐(SnC12, SnSO4,Sn(OAc)2,SnO) bzw. Zinn(IV)‐Verbindungen (SnCl4) und Aluminiumpulver in einem Gemisch aus wäßriger Essigsäure und einem organischen Lösungsmittel (Methoxyethanol, TH F, DM F, Methanol, Essigester, Benzol u.a.).
ChemInform Abstract: A New Convenient Method for Esterification Using the Ph3P / CCl4 System.
Authors: RAMAIAH M.
Published: May 2016

Triphenylphosphin (I) und Tetrachlorkohlenstoff (II) reagieren zur Zwischenstufe (III), die die Veresterung der Carboxylate (IV) mit den Alkoholen (V) zu den Estern (VI) bewirkt.
ChemInform Abstract: Radical Addition to the Carbonyl Carbon of Ketones Promoted by Aqueous Titanium Trichloride in Acidic Medium: One Step Synthesis of Pinacols and Lactones.
Authors: CLERICI A. , PORTA O. , ZAGO P.
Published: May 2016

Die Ketone (Ia)‐(Id) reagieren nach A) unter Bildung der Pinakole (II), wobei neben (IIb)‐(IId) auch der Alkohol (III) und das Dimere (IV) entstehen.
ChemInform Abstract: A Novel Reaction: Sulphamatosulphenylation of Olefins.
Authors: ZEFIROV N. S. , ZYK N. V. , KUTATELADZE A. G. , KOLBASENKO S. I. , LAPIN YU. A.
Published: May 2016

The sulphenamide (I), which does not react with alkenes, is transformed to the more powerful electrophilic reagent (II) by insertion of S03.
ChemInform Abstract: Synthesis of Some N‐Substituted Benzenepropanamines.
Authors: ANDOTRA C. S. , KUMAR R.
Published: May 2016

Aus Vanillin (I) werden über (II) und (IIIa)‐(IIIc) die Derivate (IIId) hergestellt, die nur geringe biologische Wirkung besitzen.
ChemInform Abstract: Synthesis of α‐Arylsulfonoxy Ketones from Ketone Derivatives.
Authors: HOFFMAN R. V. , CARR C. S. , JANKOWSKI B. C.
Published: May 2016

Silylenolether (I) sowie die Enamine (IV) reagieren mit dem Sulfonylperoxid (II) zu den α‐Nosylketonen (III).
ChemInform Abstract: A Mild and Efficient Synthesis of Thiolesters from Alcohols.
Authors: GAUTHIER J. Y. , BOURDON F. , YOUNG R. N.
Published: May 2016

Aus den Alkoholen (I) erhält man mit Thioessigsäure (II) in Gegenwart von Zinkiodid die Thioloester (III); analog werden die Ester (IV) bis (VIII) gebildet, aus den isomeren Allylalkoholen (IX) und (X) werden ähnliche Gemische der Thioloacetate (XI) und (XII) erhalten.
ChemInform Abstract: Synthesis of Optically Active 2,2′‐Dihalo‐1,1′‐binaphthyls via Stable Diazonium Salts.
Authors: BROWN K. J. , BERRY M. S. , MURDOCH J. R.
Published: May 2016

β‐Naphthol (I) kann mit Hydrazinhydrat zu racemischem (IIa) umgesetzt und dieses dann mit d‐Camphersulfonsäure in die Antipoden getrennt werden.
ChemInform Abstract: Studies of Dithiiranes and Thiosulfines as Reactive Intermediates.
Authors: SENNING A. , HANSEN H. C. , ABDEL‐MEGEED M. F. , MAZURKIEWICZ W. , JENSEN B.
Published: May 2016

Indirect, but compelling evidence for the intermediacy of dithiiranes [as for example (VI), (X)] and thiosul?nes [as for example (V), (IX), (XIV)] has been found in the reactions shown in the scheme and is also provided by literature data.
ChemInform Abstract: A Two‐Step Preparation of a‐Alkylidene γ‐Lactones from γ‐Lactones: A Synthesis of (±)‐Ancepsenolide.
Authors: LARSON G. L. , BETANCOURT DE PEREZ R. M.
Published: May 2016

Die Reaktion der Lithium‐enolate der γ‐Lactone (I) mit dem Silylchlorid (II) führt zu den C‐silylierten Lactonen (III), die mit den Aldehyden und Ketonen (IV) zu den ‐ vorwiegend E‐kon?guierten ‐ im Titel genannten Verbindungen (V) kondensiert werden.
ChemInform Abstract: Synthesis of N4‐(5‐Methoxy‐7‐benzofuranyl)‐1,4‐pentanediamine. An Oxygen Isostere of Primaquine.
Authors: JOHNSON J. L. , WERBEL L. M.
Published: May 2016

Der Methoxy‐salicylaldehyd (I) wird nach Nitrierung zu (II) mit Brommalonester (III) zum Benzofuran‐Derivat (IV) cyclisiert, das nach Verseifung und Decarboxylierung zum Amin (V) reduziert wird.
ChemInform Abstract: Stable Heteroarenium Ions. Part 9. Disproportionation of Alkylthiophenium Ions and Its Use for the Synthesis of 2,4‐Dialkylthiophenes.
Authors: BELEN'KII L. I. , YAKUBOV A. P.
Published: May 2016

Die Disproportionierung der aus Thiophen (I) und dem Alkylierungsmittel (II) gebildeten Thiopheniumionen (IIIa) und (IIIb) werden untersucht.
ChemInform Abstract: The Scope and Limitations of Carboxamide‐Induced β‐Directed Metalation of 2‐Substituted Furan, Thiophene and 1‐Methylpyrrole Derivatives.
Authors: CARPENTER A. J. , CHADWICK D. J.
Published: May 2016

Das Thiophen‐ 2‐carbonsäureamid (I) liefert nach Metallierung durch LDA oder s‐BuLi mit Kohlendioxid die Carbonsäuren (II) und (III); aus (IV) erhält man analog (V) und (VI).
ChemInform Abstract: Electrophilic Substitution Reactions of Furo[3,2‐b]pyrrole Derivatives.
Authors: KRAL'OVICOVA E. , KRUTOSIKOVA A. , KOVAC J. , DANDAROVA M.
Published: May 2016

(I) undergoes Vilsmeier reaction to give the aldehyde (IIa).
ChemInform Abstract: Reagents for Bioorganic Synthesis. Part 2. Methyl N‐(Dicarbomethoxymethyl)methanimidate.
Authors: LIM B. B. , HOSMANE R. S.
Published: May 2016

Die ausgehend vom Isonitrosomalonester (I) gemäß Schema hergestellte im Titel genannte Verbindung (IV) cyclisiert mit primären Aminen zu den Imidazol‐Derivaten (VII) bzw. deren Ammoniumsalzen (VIII).
ChemInform Abstract: Synthesis of ω‐Bromo‐Fatty Acid Derivatives from Internal Unsaturated Acids.
Authors: ALVHAELL J. + , GRONOWITZ S. , HALLBERG A.
Published: May 2016

As reported previously, the zirconium hydrido Chloride (IV) reacts with protected fatty acids such as (I) and (V) to give mixtures of α,β‐ and (predominantly) ω‐D‐substituted products on deuteration.
ChemInform Abstract: Improved Procedure for the Preparation of 3.4‐Dihydro‐2,2‐dimethyl‐2H‐ l‐benzopyran‐3‐ones.
Authors: CAMPS F. , COLOMINA O. , CONCHILLO A. , MESSEGUER A.
Published: May 2016

Aus den 2H‐Benzopyranen (I) erhält man mit Persäure die Diolmonoester (II), aus denen thermisch die gewünschten Benzopyranone (III) erhalten werden.
ChemInform Abstract: Synthesis of 4‐Alkyl‐3‐pyridinols from 3‐Benzyloxypyridine.
Authors: COMINS D. L. , STROUD E. D.
Published: May 2016

3‐Benzyloxy‐pyridin (I) wird mit Chlorkohlensäurephenylester (II) und den Grignard‐Verbindungen (III) zu den 4‐substituierten Dihydropyridinen (IV) umgesetzt, dann mit o‐Chlora‐ 106 nil (V) zu den Pyridin‐Derivaten (VI) oxidiert und weiter zu den im Titel genannten Verbindungen (VII) debenzyliert.
ChemInform Abstract: Cyanothioacetamide in Heterocyclic Synthesis. A Novel Synthesis of 2‐Pyridothione Derivatives.
Authors: FAHMY S. M. , MOHAREB R. M.
Published: May 2016

The pyridothione (II) is obtained either by self‐condensation of (I) or by reaction of (I) with malononitrile (III).
ChemInform Abstract: Synthesis of Novel N‐(1,2,3,7,8,9,9a,9b‐Octahydro‐3‐(phenylmethyl)‐5H‐dipyrrolo[1,2‐c:3,2‐e]pyrimidine‐5‐ylidene)benzenamine Derivatives.
Authors: MATTHEWS D. P.
Published: May 2016

1‐Benzyl‐pyrrolidon (I) kondensiert in Gegenwart von Phosphoroxychlorid zu (II), das zum Pyrrolinylpyrrolidon (III) hydriert und dann mit den Isothioharnstoff‐Derivaten (IV) zu den Amidinen (V) umgesetzt werden kann.
ChemInform Abstract: Pyrazine Chemistry. Part 5. Synthesis of Methylanhydropicroroccellin and Dimethylpicroroccellin.
Authors: MARCUCCIO S. M. , ELIX J. A.
Published: May 2016

The methoxypiperazine‐2,5‐diones (II) and (III) are obtained from (I) by Michael addition, together with small amounts of (VI).
ChemInform Abstract: Reaction of 5‐(3,4‐Dimethoxyphenyl)pyrazine‐2,3‐dicarbonitrile with Alcohol in the Presence of Base.
Authors: TSUZUKI K. , TADA M.
Published: May 2016

Aus dem Pyrazin‐dinitril (I) entstehen in Gegenwart von Basen die Substitutionsprodukte (II) und (III) und/ oder die isomeren Ester (IVb) bzw. (Vb).
ChemInform Abstract: Central Nervous System Active Compounds. Part 16. Some Chemistry of 6‐Oxo Caprolactams Derived from an Enamine Ring‐Expansion Synthesis.
Authors: HEINICKE G. W. , MORELLA A. M. , ORBAN J. , PRAGER R. H. , WARD A. D.
Published: May 2016

(I) and (II) give (III), which undergoes Dieckmann condensation to afford (IVa).
ChemInform Abstract: Synthesis of Novel Quinoxalines by Ring Transformation of 3‐Quinoxalinyl‐1,5‐benzodiazepine.
Authors: KARUSAWA Y. , SHIMABUKURO S. , OKAMOTO Y. , TAKADA A.
Published: May 2016

Das Chinoxalinyliden‐benzodiazepin‐hydrochlorid wird unter Ringtransformation in das Benzimidazolylmethylen‐chinoxalinon (II) umgewandelt.
ChemInform Abstract: Alkylation of 4‐Nitroimidazole‐5‐thiol with α,ω‐Dihalides to Form Bicyclic Derivatives.
Authors: GRIMMETT M. R. , VAN HORIK E. T. , KULKARNI S. R.
Published: May 2016

Alkylation of the salt (I) with the dihalo‐alkanes (II) leads to the cyclization products (III) [prolongation of the reaction time from 1.5 to 3 h gives, in the case of the reaction with (IIc), the dimer (V) (yield 46%) and (IIIc) (20%)].
ChemInform Abstract: Electron Transfer. Part 77. Electrochemistry of Carboxylato‐Bound Chromium(V).
Authors: BOSE R. N. , NEFF V. D. , GOULD E. S.
Published: May 2016

Sodium bis(2‐ethyl‐2‐hydroxybutyrato)oxochromate(V) (I) undergoes quasi‐reversible one electron reaction in aqueous perchlorate in the pH range 3.5‐6.0.
ChemInform Abstract: Synthesis of Tris(3,5‐di‐tert.‐butylcatecholato)molybdenum(VI) and Its Reaction with Molecular Oxygen.
Authors: CASS M. E. , PIERPONT C. G.
Published: May 2016

The title complex (II) is prepared from the o‐quinone (I) and MÖ(VI) under careful exclusion of oxygen.
ChemInform Abstract: Preparation and Structure of W(CO)5OPPh2NPPh3, a Novel Complex Containing a Ligand Derived from the Bis(triphenylphosphine)nitrogen(l +) Cation.
Authors: DARENSBOURG D. J. , PALA M. , RHEINGOLD A. L.
Published: May 2016

The title complex (III) is prepared by the reaction of photochemically produced tungsten pentacarbonyl ‐ THF with the ligand (II).
ChemInform Abstract: Alkylation of Substituted Tetrazoles and 1,2,4‐Triazoles by Ferrocene Derivatives.
Authors: SACHIVKO A. V. , TVERDOKHLEBOV V. P. , TSELINSKII I. V.
Published: May 2016

The reaction of the ferrocene alcohols (I) with the tetrazoles (IIa) and (IIb) yields mixtures of the corresponding Z‐substituted (III) and 1‐substituted tetrazoles (IV), whereas the nitrotetrazole (IIc) gives only the 2‐substituted derivatives (IIIc).
ChemInform Abstract: Electrochemical Generation of an Iron(IV) Porphyrin.
Authors: GROVES J. T. , GILBERT J. A.
Published: May 2016

The Fe(III)‐porphyrin hydroxide (I) is oxidized by a reversible one‐electron process to give the red‐orange Fe(IV) complex (II).
ChemInform Abstract: Trinucleation of Arylazo Oxime Ensembles. Part 2. Linear Fe(II)Ni(II)Fe(II) and Related Systems.
Authors: PAL S. , MUKHERJEE R. , TOMAS M. , FALVELLO L. R. , CHAKRAVORTY A.
Published: May 2016

The anion (I), which is liberated from (IIa) by alkali, reacts with metal perchlorates in EtOH (1 h reflux) to yield the title compounds (IIb)‐(IIf) (yields only given for the Ni complexes).
ChemInform Abstract: Cobalt(II) Chelate Catalyzed Oxidation of 3,5‐Di‐tert.‐butylcatechol.
Authors: TSURUYA S. , YANAI S. , MASAI M.
Published: May 2016

The Catalytic activity of Co(II) chelate complexes with respect to the oxidation of 3,5‐ditert.‐butylcatechol in Chloroform to 3,5‐di‐tert.‐butyl‐o‐benzoquinone as the unique product is investigated.
ChemInform Abstract: Mixed‐Metal Gold Clusters. Synthesis and X‐Ray Structural Characterization of Au5Re(H)4(PPh3)7(PF6), and Au3Rh(H)(CO)(PPh3)5(PF6).
Authors: BOYLE P. D. , JOHNSON B. J. , BUEHLER A. , PIGNOLET L. H.
Published: May 2016

The title complexes (III) and (V) are obtained by the reaction of the Au(I) complex (I) with the Re complex (II) or Rh complex (IV) (ratio 6:1 or 1 :l, resp.) as shown.
ChemInform Abstract: Bisaxially Coordinated (Phthalocyaninato)ruthenium(II) Compounds.
Authors: KOBEL W. , HANACK M.
Published: May 2016

(Phthalocyaninato)ruthenium(II) (I) was prepared by slow heating of (IIa) up to 330°C. (I) is reacted with various liquid or melted N‐donor ligands to yield monomeric derivatives (IIb) and (III).
ChemInform Abstract: Photochemical Formation of Ruthenium Phthalocyanine n‐Cation Radical Species.
Authors: NYOKONG T. , GASYNA Z. , STILLMAN M. J.
Published: May 2016

The Ru(II) phthalocyanine complexes (I) can be quantitatively photooxidized to stable It‐cation radical species.
ChemInform Abstract: Synthesis and Study of Mononuclear Ruthenium(II) Complexes of Sterically Hindering Diimine Chelates.
Authors: COLLIN J. P. , SAUVAGE J. P.
Published: May 2016

Due to the steric hindrance, caused by the methyl groups in a position to the nitrogen atoms, the bis chelate complexes (II), (III) and (IV) are all cis with respect to the two remaining coordination sites and cannot be photoisomerized to their trans isomers.
ChemInform Abstract: Synthesis of Square‐Pyramidal Platinum‐Osmium Clusters by Metal‐Metal Exchange.
Authors: ADAMS R. D. , BABIN J. E. , MAHTAB R. , WANG S.
Published: May 2016

The Os cluster (I) reacts with Pt(PPh3)2(C2H4) (ratio 1:1) to form the Pt,Os Clusters (II) and (III) along with the spectroscopically characterized phosphine Substitution product (IV) and two other unidentified compounds, which are separated on silica TLC plates.
ChemInform Abstract: Complexation Behaviour of a Morpholino‐phosphine Containing "Hard" and "Soft" Donor Sites.
Authors: LANGRICK C. R. , PARKER D.
Published: May 2016

The monophosphine ligand (II) prepared as shown reacts with corresponding metal Chloride complexes (ratio 1:1) to form the trans complexes (III) in which the ligand is bidentately P,Nbonded.
ChemInform Abstract: Reactions of Abietic Acid Methyl Ester with m‐Chloroperbenzoic Acid.
Authors: VALVERDE S. , LOPEZ J. C. , RABANAL R. M. , ESCUDERO J.
Published: May 2016

Depending on the reaction conditions, epoxidation of the title compound (I) yields principally or exclusively the monoepoxides (II) and (III).
ChemInform Abstract: Triterpenes. Part 73. Reactions of Triterpenoid Ketones with Sulfur and Morpholine Under the Conditions of the Willgerodt‐Kindler Reaction.
Authors: SEJBAL J. , KLINOT J. , PROTIVA J. , VYSTRCIL A.
Published: May 2016

Subjecting any of the oleanane derivatives (I)‐(III) to the title reaction results in the formation of 2‐oxo compound (VIII); (IV)‐(VII), however, are reeovered unchanged.
ChemInform Abstract: The Selective Bond Cleavage of Aldohexoses by the Iron(III) Chloride‐ Catalyzed Photoreaction.
Authors: ICHIKAWA S. , SATO T.
Published: May 2016

Die Aldohexosen (Ia), (IIIa) bzw. (IVa) werden in Gegenwart von Fe(III)‐chlorid photolytisch oxidiert, wobei unter Spaltung der Cl‐Cz‐ Bindungen die O‐Formyl‐Derivate (II) bzw. (V) erhalten werden.
ChemInform Abstract: An Approach to the Synthesis of Mevinolin Based on Intramolecular Diels‐Alder Cycloaddition.
Authors: HECKER S. J. , HEATHCOCK C. H.
Published: May 2016

Als eines der Schlüsselprodukte für die Totalsynthese des hypocho‐ ′lesterinämisch wirkenden Mevinolins (I) wird in einer siebenstufigen Reaktionsfolge ausgehend vom Enolether (II) das Lacton (V) in einer Gesamtausbeute von 28% hergestellt.
ChemInform Abstract: A Convenient Synthesis of β‐Alkynylpropionic Acids from β‐Propiolactones.
Authors: SHINODA M. , ISEKI K. , OGURI T. , HAYASI Y. , YAMADA S. , SHIBASAKI M.
Published: May 2016

Aus den Alkinen (I) entstehen über die Al‐Verbindungen (III) mit den β‐Lactonen (IV) die Alkincarbonsäuren (V).
ChemInform Abstract: Convergent Solid Phase Peptide Synthesis. Part 3. Synthesis of the 44‐52 Protected Segment of the Toxin II of Androctonus australis Hector.
Authors: GIRALT E. , ERITJA R. , PEDROSO E. , GRANIER C. , VAN RIETSCHOTEN J.
Published: May 2016

The synthesis of the title peptide (I) by the solid phase method is described.
ChemInform Abstract: Nuclear Quadrupole Resonance Studies on Inorganic Solids
Authors: RAO K. V. S. R. , RAMAPRABHU S.
Published: May 2016

Review: (67 refs.
ChemInform Abstract: Transformation‐Toughened ZrO2: Correlations Between Grain Size Control and Composition in the System ZrO2 ‐ Y2O3.
Authors: LANGE F. F.
Published: May 2016

The average grain size of ZrO2 materials sintered at 1400°C decreases by a factor of 4 to 5 for Y2O3 contents in the range O.8‐ 1.4 mol‐% and increases at YZO; contents of 6.6 mol‐%.
ChemInform Abstract: Reactivity of Large Carbon Clusters: Spheroidal Carbon Shells and Their Possible Relevance to the Formation and Morphology of Soot.
Authors: ZHANG Q. , O'BRIEN S. C. , HEATH J. R. , LIU Y. , CURL R. F. , KROTO H. W. , SMALLEY R. E.
Published: May 2016

Although most small carbon Clusters (C", n 40) are found to be highly reactive with N0, S02, and CO, the larger even n Clusters (40 n 80) are found to be relatively inert.
ChemInform Abstract: Tetragonal Zirconia Polycrystals Reinforced with SiC Whiskers.
Authors: CLAUSSEN N. , WEISSKOPF K.‐L. , RUEHLE M. +
Published: May 2016

Fully dense ( 99% TD) tetragonal ZrO2 polycrystal (TZP) composites reinforced with up to 30 vol.‐% SiC whiskers have been prepared by hot‐pressing at l450°C for 10min and the microstructure and mechanical properties have been studied.
ChemInform Abstract: Photodecomposition of H2S in Aqueous Alkaline Media Catalyzed by RuO2‐loaded Alumina in the Presence of Cadmium Sulfide.
Authors: BORGARELLO E. , SERPONE N. , GRAETZEL M. + , PELIZZETTI E.
Published: May 2016

Through the coupling of excited CdS and the redox catalyst Al2O3/RuO2, a 5‐fold increase in H2 evolution rate is obtained.
ChemInform Abstract: The Coprecipitation of Fe(III) and Cu(II) with Bismuth Phosphate and Calcium Fluoride
Authors: HENRION G. , STOESSER R. + , PROESCH U. + , HEININGER P.
Published: May 2016

The Coprecipitation of Fe(III) and Cu(II) with Bismuth Phosphate and Calcium Fluoride as carriers is investigated using 59Fe and 64Cu and by EPR measurements.
ChemInform Abstract: Use of Carbon Monoxide and Third‐Derivative EPR Spectra to Probe the Coordination of Surface V4+ Ions on Reduced V2O5 / SiO2 Catalysts.
Authors: CHE M. , CANOSA B. , GONZALEZ‐ELIPE A. R.
Published: May 2016

The spectrum resolution indicates an orthorhombic symmetry for the V" ions after CO adsorption.
ChemInform Abstract: Conditions for Compound Formation in Au/Metal Couples at Room Temperature.
Authors: MARINKOVIC Z. , SIMIC V.
Published: May 2016

On the basis of experimental results obtained on a number of Au/M Couples and of earlier results it is shown that the probability of Compound formation in Au/ M Couples (M: Ga, In, Sn, Cd, Pb, Zn, Sb, A1) of the film/?lm and bulk/film types at room temp. is closely related to the melting temp. of the metals and of the compounds formed.
ChemInform Abstract: Vicarious Nucleophilic Substitution of Hydrogen in Nitrobenzoic Acids.
Authors: MAKOSZA M. , LUDWICZAK S.
Published: May 2016

Aus den Nitrobenzoesäuren (I) werden die Sulfone bzw. Cyanmethylverbindungen (III) und (IV) erhalten.
ChemInform Abstract: Catalytic Addition of Trihalogenomethanesulfenyl Chlorides to Olefinic Compounds.
Authors: HAAS A. , LIEB M. , ZHANG Y.
Published: May 2016

Die Addition von Fluorchlormethansulfenylchloriden CF"C13‐"SCl (n = 1, 2, 3) an Cyclohexan, 1‐Hexen, Allylbromid und Vinylbromid in Gegenwart von Trifluoressigsäure als Katalysator wird untersucht.
ChemInform Abstract: Rearrangements of Oxahomoadamantane Derivatives in Acidic Media.
Authors: DUDDECK H. , BROSCH D.
Published: May 2016

Bei der durch HBr katalysierten Umlagerung der vier isomeren 2‐Bromoxahomoadamantanone (I) und (II) werden die im Schema aufgeführten Adamantanone (III)‐(IX) erhalten und durch Chromatographie der Reaktionsgemische isoliert.
ChemInform Abstract: Applications of Di‐tert‐butyliminoxyl Radical to Organic Synthesis.
Authors: CORNEJO J. J. , LARSON K. D. , MENDENHALL G. D.
Published: May 2016

Die Amine (III) werden durch das aus Oxim (I) oxidativ hergestellte Nitroxyl‐Radikal (II) zu den Azomethinen (IV) dehydriert.
ChemInform Abstract: Free Radical Chemistry. Part 6. Halogenation of Polyfluoro‐ethers and ‐borate Esters.
Authors: CHAMBERS R. D. , GRIEVSON B.
Published: May 2016

Die Chlorierung und Bromierung des Ethers (I) in Substanz bzw. CCl4‐ und CSZ‐Lösung sowie die Fluorierung liefern die im Formelschema angegebenen Produkte.