bluuebunny/crossref_metadata_2025 huggingface dataset:
ChemInform Abstract: Sigmatropic Rearrangement of α‐Cyclopropenyl Ketones in Acidic Medium.
Authors: VINCENS M. , DUMONT C. , VIDAL M.
Published: May 2016

Die 3‐Acetyl‐cyclopropene (I) werden durch Perchlorsäure in Methanol über diskutierte Zwischenstufen zu den isomeren Cyclobutenen (II) und (III) umgelagert.
ChemInform Abstract: An lmproved Preparation of m‐ and p‐Tetramethylxylylenediisocyanates.
Authors: HENDERSON W. A. JUN , ALEXANIAN V. A.
Published: May 2016

Aus den Diisopropenyl‐benzolen (I) werden über die Dichloride (II) mit überschüssiger Isocyansäure in Gegenwart von Zinkchlorid die Isocyanate (III) und (IV) hergestellt.
ChemInform Abstract: Diels‐Alder Cyclization of 2,8,10‐Undecatrienals as a Route to 1,2,3,4,4a,5,6,8a‐ Octahydronaphthalenes.
Authors: MARSHALL J. A. , AUDIA J. E. , GROTE J. , SHEARER B. G.
Published: May 2016

The 2,8,10‐undecatrienals (IIIc), (V) and (VII) undergo facile Diels‐Alder cyclization upon treatment with alkylaluminum chlorides in methylene Chloride at low temperature.
ChemInform Abstract: Preparation of O‐Protected (2S,3S)‐1,2‐Epoxy‐3‐butanols. Enantioselective Synthesis of (‐)‐Rhodinose and (+)‐Epimuscarine Iodide.
Authors: HATAKEYAMA S. , SAKURAI K. , TAKANO S.
Published: May 2016

Das aus Weinsäure (I) in 6 Stufen zugängliche Bis‐epoxybutan (II) liefert nach reduktiver Ringöffnung die O‐geschützten Oxyepoxide (III).
ChemInform Abstract: A Facile Synthesis of Functionalized Novel Monocyclic trans‐β‐Lactams.
Authors: DUTTA D. K. , BORUAH R. C. , SANDHU J. S.
Published: May 2016

Das Kupfer‐phenylacetylid (I) liefert mit den Benzoylnitronen (II) die N‐Aryl‐β‐lactame (III), von denen die Dimethylaminophenylverbindung mit Cerammoniumnitrat zum β‐Lactam (IV) desaryliert wird.
ChemInform Abstract: Route to Stereochemically Complex Tetrahydrofurans Using α‐Sulfinyl Carbanions.
Authors: WILLIAMS D. R. , PHILLIPS J. G.
Published: May 2016

Novel methods for the synthesis of stereochemically complex tetrahydrofurans (II), (IV), and (VII) starting from sulfoxides (I), (VI) or sulfides (III), (V) as shown in the scheme are described.
ChemInform Abstract: Catalysis by β‐Dicarbonyl Copper Complexes. Part 2. The Reaction of Tetrahydrofuranylhydroperoxide with Hexamethylenediisocyanate.
Authors: RAKHIMOVA T. F. , LITINSKII A. O. , NIKISHIN G. I. , GLUKHOVTSEV V. G.
Published: May 2016

Die Tetrahydrofuranylhydroperoxide (I) reagieren mit Hexamethylendiisocyanat (II) unter der katalytischen Wirkung der Kupfer‐ß‐dicarbonyl‐Komplexe (III) zu den Peroxycarbamaten (IV).
ChemInform Abstract: An Easy Route to a Chiral Diol in the Furan Series from 2‐Deoxyaldohexoses.
Authors: FAYET C. , GELAS J.
Published: May 2016

Erhitzen von 2‐Desoxy‐D‐glucose (Ia) oder ‐D‐ga1actose (Ib) mit Pyridiniumchlorid in Pyridin und nachfolgende Acetylierung liefern das Bis‐ acetat (IIa) des chiralen Glykols (IIb).
ChemInform Abstract: General Synthesis of Polysubstituted Thiophenes from Diketo Sulfides and Application ot the Preparation of Polythiophenes.
Authors: NAKAYAMA J. , MURABAYASHI S. , SAITO R. , MACHIDA H. , AKIMOTO K. , HOSHINO M.
Published: May 2016

Reduktive Cyclisierung der Diketosul‐ ?de (I) mit Titantetrachlorid in Gegenwart von Zink liefert die Dihydroxythiolane (II), die zu den Thiophenen (III) cyclisiert werden.
ChemInform Abstract: 1,3‐Anionic Cycloaddition of 1,5‐Diphenyl‐2‐azaallyl Lithium to Thioketenes and Thioketen S‐Oxides.
Authors: SCHAUMANN E. , BEHR H. , ADIWIDJAJA G.
Published: May 2016

Addition der Thioketene (III) an das aus dem Aziridin (I) in situ erzeugte Azaallylanion (II) und nachfolgende Hydrolyse liefern die Thiazolidine (IV).
ChemInform Abstract: Synthesis and Biological Evaluation of N‐[5‐Alkyl‐3‐(4‐tert‐amino‐2‐butynyl)‐1,3,4‐thiadiazol‐2(3H)‐ylidene]benzamides.
Authors: MUHI‐ELDEEN Z. , HADI A. , AL‐SHAMMA A. , SALMAN S. R. , SAMEH I. , FALIH N.
Published: May 2016

The title compounds (VII) are synthesized as described and tested for their inhibitory effects toward the very active muscarinic agent oxotremorine.
ChemInform Abstract: Reactions of Allylsilanes with Simple Iminium Salts in Water: A Facile Route to Piperidines via an Aminomethano Desilylation‐Cyclization Process.
Authors: LARSEN S. D. , GRIECO P. A. , FOBARE W. F.
Published: May 2016

A series of title reactions is carried out using method A).
ChemInform Abstract: Preparation of 3‐Substituted Quinolines. Part 2. Preparation and Cyclodehydratation of α‐Alkyl‐ and α‐Phenyl‐β‐arylaminoacrolein Derivatives.
Authors: TODORIKI R. , ONO M. , TAMURA S.
Published: May 2016

Die Aniline (I) reagieren mit den Malonaldehyddiacetalen (II) zu den Diazapentadienen (III), deren Hydrolyse zu den Anilinoacroleinen (IV) führt.
ChemInform Abstract: Metallo‐ketene‐S,N‐acetals. New Synthesis of Azacycloalka[3,2‐c]pyridin‐2‐ones.
Authors: TAKAHATO H. , SUZUKI T. , YAMAZAKI T.
Published: May 2016

Die aus den Thiolactamen (I) hergestellten Amide (III) werden gemäß Schema in die im Titel genannten Verbindungen (VI) übergeführt.
ChemInform Abstract: A Convenient Synthesis of 4‐Oxo‐4H‐quinolizines.
Authors: FORTI L. , GELMI M. L. , POCAR D. , VARALLO M.
Published: May 2016

Die Pyridine (Ib)‐(Id) bzw. der Vinylether (VI) kondensieren mit Dichlorpropenal (V) bzw. seinem synthetischen Äquivalent (II) zu den Butadienen (III), die beim Erhitzen in Essigsäure bzw. in wäßrigem Dioxan zu den im Titel genannten Verbindungen (IV) cyclisieren.
ChemInform Abstract: Synthesis of Novel Dihydropyrimidine Derivatives.
Authors: CHO H. , UEDA M. , SHIMA K. , MIZUNO A. , HAYASHIMATSU M. , OHNAKA Y. , TAKEUCHI Y.
Published: May 2016

Die Acetessigsäureester‐ (I) bzw. Malonester‐Derivate (IV) kondensieren mit den Amidinen und Guanidinen (II) zu den im Titel genannten Verbindungen (III) bzw. (V).
ChemInform Abstract: Nuclear Transformations by Hydrogenolysis: Synthesis of Pyrimidinones from Isoxazoles Derivatives.
Authors: CARONNA S. , MIGLIARA O. , PETRUSO S.
Published: May 2016

Die aus dem Isoxazolcarbonsäurechlorid (I) mit Harnstoff bzw. dem Amidin (IV) hergestellten Amide (II) bzw. (V) liefern bei der Hydrierung quantitativ die Pyrimidin‐Derivate (III) bzw. (VI).
ChemInform Abstract: Coupling Reactions of Chloropyrazines and Their N‐Oxides with Tetraphenyltin.
Authors: OHTA A. , OHTA M. , WATANABE T.
Published: May 2016

Die Chlorpyrazine (I) reagieren mit Tetraphenylzinn (II) in Gegenwart des Pd‐ Phosphan‐Komplexes (III) zu den Pyrazinen (IV) und (V).
ChemInform Abstract: Synthesis of (2S,5S)‐2,5‐Bis(phenylmethyl)piperazine by the Reduction with Sodium Borohydride Using Titanium Tetrachloride.
Authors: SOAI K. , HAYASHI H. , HASEGAWA H.
Published: May 2016

Reduktion des Dions (I) mit aktiviertem Boranat führt zu dem im Titel genannten Piperazin (II).
ChemInform Abstract: Synthesis of Quinoxalines Utilizing Aryl Diazonium Salts.
Authors: KURASAWA Y. , TAKADA A.
Published: May 2016

Kupplung der Chinoxaline (I) bzw. (IV) mit den Diazonium‐Salzen (II) liefert die Hydrazone (IIIa) bzw. (IIIb).
ChemInform Abstract: Reaction of Isocytosine with N‐Chlorocarbonyl Isocyanate.
Authors: FURUKAWA Y. , TODA T. , SAWADA M. , HANAFUSA T.
Published: May 2016

Die im Titel angeführte Reaktion liefert ausschließlich das Pyrimidotriazintrion (III) und nicht das Strukturisomere (VII).
ChemInform Abstract: Synthesis and Structural Study of New Derivatives of 6,8‐Diaryl‐3‐thia‐7‐azabicyclo[3.3.l]nonane Systems.
Authors: LLAMA E. F. , TRIGO G. G.
Published: May 2016

Die Thiaazabicyclononanone (I), erhältlich nach literaturbekannten Methoden, addieren die Grignard‐Verbindungen (II) zu den tertiären Carbinolen (IIIa).
ChemInform Abstract: 2‐Substituted 1,3,2‐Dioxaboroles as Synthetic Equivalents for the Glycolaldehyde Anion.
Authors: WULFF G. , HANSEN A.
Published: May 2016

The applications of the previously unknown title Compounds (IV) prepared as shown as building blocks for the synthesis of carbohydrates is studied using the 2‐phenyl derivative (IVc).
ChemInform Abstract: Radical Cyclization of Propargyl Bromomethyldimethylsilyl Ethers.
Authors: MAGNOL E. , MALACRIA M.
Published: May 2016

Die Propargyl‐brommethyl‐dimethylsilylether (I) werden mit Triphenylzinnhydrid (II) unter radikalischen Bedingungen über die Zwischenstufen (III) zu den Diolen (IV) oxidiert bzw. zu den Alkoholen (V) substituiert.
ChemInform Abstract: N‐Aryl‐O‐(diphenylphosphinoyl)hydroxylamines: Electrophilic Amination of Amines to Hydrazines.
Authors: BOCHE G. , SOMMERLADE R. H. , BOSOLD F.
Published: May 2016

The stable title compounds (I) react with prim. and sec. amines (II) to give the hydrazines (III).
ChemInform Abstract: Low‐Coordinated Phosphorus Compounds. Part 50. A Stable 1,2,4‐Thiadiphosphole ("2,4‐Diphosphathiophene").
Authors: APPEL R. , MOORS R.
Published: May 2016

The title heterocycle (IV) is obtained by the reaction shown.
ChemInform Abstract: Some New Complexes of Thorium Tetrachloride with Substituted Ureas.
Authors: BAGNALL K. W. , AL‐DAHER A. G. M. , BOMBIERI G. , BENETOLLO F.
Published: May 2016

ThCl4 reacts with the ligands in dichloromethane, THF or pentane to form the l :3 complex (Ia) and the l 12 complexes (IIb)‐(IId).
ChemInform Abstract: Synthesis and Characterization of a Confacial Bioctahedral Tantalum(II) Dimer with a Formal Triple Metal
Authors: COTTON F. A. , DIEBOLD M. P. , ROTH W. J.
Published: May 2016

Metal Bond. ‐ Reduction of the binuclear Ta complex (I) with two equiv. sodium amalgam in the presence of LiCl leads to the diamagnetic Ta(II) dimer (II).
ChemInform Abstract: Electron Transfer Reactions of Tris(toluene‐3,4‐dithiolato)molybdenum(VI) with Organic Compounds.
Authors: BARICELLI P. J. , MITCHELL P. C. H.
Published: May 2016

The title compound (I) reacts with aromatic hydrocarbons like naphthalene and anthracene, with amines, N‐heterocycles, purines including xanthine, with riboflavin and molybdoenzyme Substrates and with aldehydes, forming the one‐electron reduced species of (I) and organic radicals.
ChemInform Abstract: Electron Spin Adjustment in Manganocenes. Preparative, Paramagnetic NMR, and ′ X‐Ray Study on Substituent and Solvent Effects.
Authors: HEBENDANZ N. , KOEHLER F. H. + , MUELLER G. + , RIEDE J.
Published: May 2016

Using the potassium salts of substituted cyclopentadienes in the reaction with MnCl2 the new manganocenes (Ia)‐(Id) are prepared together with (Ie) and (If).
ChemInform Abstract: Crossed‐Beam Studies of Energy and Angular Distributions of Organometallic Reactions: Decarbonylation of Acetaldehyde by Fe+ and Cr+.
Authors: SONNENFROH D. M. , FARRAR J. M.
Published: May 2016

The first crossed‐beam studies of gas‐phase transition‐metal ion chemistry are reported, demonstrating that product kinetic energy and angular distributions probe the potential energy surface topology of simple carbon ‐ carbon bond cleavage reactions.
ChemInform Abstract: Intramolecular Hydrogen Bonding: Synthesis and Crystal Structure of Nickel(II) and Copper(II) Complexes of a Tetradentate Amine Oxime.
Authors: PAL J. , MURMANN R. K. , SCHLEMPER E. O. , FAIR C. K. , HUSSAIN M. S.
Published: May 2016

The 1 :l molar reaction of Ni(II) or Cu(II) nitrate with 3,3′(1,4‐butanediyldiamino)bis(3‐methyl‐2‐butanone)dioxime leads to the monomeric Ni complex (I) with square planar geometry or to the mixed monomer/dimer salt (II), in which Cu(II) ions have square pyramidal coordination.
ChemInform Abstract: Reactivity of Bromoform with [Au(CH2)2PPh2]2. The Completion of the Halomethane Series CHyX4 ‐y (y: 3, 2, 1, 0. X: Cl, Br, I) and Reactivity with [Au(CH2)2PPh2]2.
Authors: MURRAY H. H. , FACKLER J. P. JUN.
Published: May 2016

The gold ylide dimer (I) react with excess CHBr3 to give the asymmetrically substituted Au(II) complex (II) which is isolated and characterized by 1H NMR spectrum.
ChemInform Abstract: Dicationic Tetranuclear Tetrahydrides of Iridium, Ruthenium, and Osmium.
Authors: CABEZA J. A. , NUTTON A. , MANN B. E. , BREVARD C. , MAITLIS P. M.
Published: May 2016

The known complex dication (IIIa), which has a distorted tetrahedral arrangement of the rhodiums and the four hydrides bridging the four faces of the distorted tetrahedron (μ3‐H), can be made more conveniently by prolonged reaction of (Ia) with propan‐2‐ol (II).
ChemInform Abstract: Bipyrimidine‐bridged Rhenium(I)/Rhenium(l) and Ruthenium(II)/Rhenium(I) Complexes.
Authors: VOGLER A. , KISSLINGER J.
Published: May 2016

The binuclear bipyrimidine‐bridged complexes (III) and (V) are prepared by reaction of the mononuclear bipyrimidine complexes (II) or (IV) with Re(CO)5Cl (I) as shown.
ChemInform Abstract: C‐H vs. O‐H Reductive Elimination of Methanol from a Metal Complex. Which Is a More Likely Process?
Authors: MILSTEIN D.
Published: May 2016

The isomeric complexes, the hydroxyacetyl derivative (I) and the carbomethoxy derivative (II) (prepared in 79% yield by addition of excess methyl formate to RhL3Cl), are stable at 25°C in the solid state, but slowly decompose in solution.
ChemInform Abstract: Transition Metal‐Methylene Complexes. Part 62. Spontaneous Intramolecular Ring Opening of the Cyclopropyl Group at a Metal‐Metal Double Bond.
Authors: HERRMANN W. A. , HERDTWECK E. , WEBER C.
Published: May 2016

Treatment of the binuclear Rh complex (I) with the diazo Compounds (II), generated in situ from their hydrazone precursor Compounds, results in the formation of the new dimetallacyclopropanes (III).
ChemInform Abstract: Pentacoordinate Bridging Sulfido Ligand in a Square‐Pyramidal Geometry.
Authors: ADAMS R. D. , BABIN J. E. , NATARAJAN K.
Published: May 2016

The sulfido Os c1uster(I) reacts with Mo(CO)5(PPh3) at UV irradiation to form the title compound (II) through the formation of a S‐ Wdonor‐acceptor bond.
ChemInform Abstract: A General Approach to Linearly Fused Triquinane Natural Products.
Authors: MEHTA G. , MURTHY A. N. , REDDY D. S. , REDDY A. V.
Published: May 2016

The pentacyclic dione (I) is transformed to the tricyclic compound (III) which serves as intermediate for the synthesis of racemic hirsutene (IV) and the hydroxydienone (IX).
ChemInform Abstract: Synthesis and Photochemistry of 5‐Hydroxy‐5β‐cholest‐3‐en‐6‐one.
Authors: STIVER S. , YATES P.
Published: May 2016

3β‐Benzyloxy‐5‐hydroxy‐5a‐cholestan‐6‐on (I) wird zu dem Δ3‐Steroid (II) und geringen Mengen eines isomeren Olefins gespalten.
ChemInform Abstract: Lincomycin Analogues. Part 2. Chain‐Extension of Methyl‐6‐aldehydo‐3,4‐ O‐isopropylidene‐1‐thio‐β‐D‐galacto‐1,5‐pyranoside.
Authors: TRONCHET J. M. J.
Published: May 2016

Ausgehend vom a‐D‐Galactopyranosylbromid (I) wird nach der im Schema angegebenen Reaktionsfolge die im Titel genannte Verbindung (V) hergestellt, die mit dem Phosphoran (VI) in das Z‐kon‐ figurierte ungesättigte Zuckerderivat (VII) übergeführt wird.
ChemInform Abstract: A Novel Reductive Amino Cyclization Method and Its Application for the Syntheses of Pyrrolidine and Piperidine Nucleus.
Authors: YAMADA F. , HASEGAWA T. , WAKITA M. , SUGIYAMA M. , SOMEI M.
Published: May 2016

Die Palladium(II)‐katalysierte Kupplung des Allylalkohols (II) mit dem Iod‐nitrovinylindol (I) zum Tricyclus (III) und die nachfolgende Wittig‐Reaktion mit dem Methylenphosphoran (IV) liefern das Indol‐ Derivat (V), das reduktiv in ein Gemisch aus dem Hexahydroisoindolo‐ [4.5.6.‐cd]indol (VI) und den Aminen (VII) übergeführt wird.
ChemInform Abstract: A New and Versatile Approach to the Preparation of Valuable Deoxynucleoside 3′‐Phosphite Intermediates.
Authors: MARUGG J. E. , BURIK A. , TROMP M. , VAN DER MAREL G. A. , VAN BOOM J. H.
Published: May 2016

Das Phosphorigsäurediamidchlorid (I) kann mit den Nucleosiden (II) zu (III) kondensiert und weiter zu (V) hydrolysiert werden.
ChemInform Abstract: A New Synthetic Route to Prostaglandins.
Authors: COREY E. J. , NIIMURA K. , KONISHI Y. , HASHIMOTO S. , HAMADA Y.
Published: May 2016

Aus dem Cyclopentenon (I) erhält man durch Behandlung mit O‐Methyl‐hydroxylamin, Epoxidierung und syn‐ß‐E1iminierung die isomeren Hydroxycyclopentenonoxime (II) und (III), die mit Hilfe von α‐Cyclodextrin getrennt werden.
ChemInform Abstract: Intramolecular Nucleophilic Amino Attack in a Monobactam: Synthesis and Stability of (2S,3S)‐3‐[(2R)‐2‐Amino‐2‐phenylacetamido]‐2‐methyl‐4‐oxo‐1‐azetidinesulfonic Acid.
Authors: INDELICATO J. M. , FISHER J. W. , PASINI C. E.
Published: May 2016

Die geringe antibakterielle Wirkung des Monobactams (I) wird auf die rasche Umlagerung zu (II) zurückgeführt.
ChemInform Abstract: TiAl3‐TiC Coatings on Titanium,
Authors: KABBAJ M. , GALERIE A. , CAILLET M.
Published: May 2016

A coating containing 90 mol% TiC and l0 TiAl3 is obtained in two steps by carburization with gaseous methane and subsequent aluminization in a fluoride päck.
ChemInform Abstract: V Contributions to the Chemistry of Sulfur Halogenides. Part 13. The Photoionization Mass Spectrum of SBr2.
Authors: MINKWITZ R. , LEKIES R. , JOCHIMS H. W. , RUEHL E. + , BAUMGAERTEL H. +
Published: May 2016

From the experimental data, the (S‐Br)‐bond energy has been calculated to be 213 kJ/mol for SBr2+ and 234 kJ/mol for SBr2.
ChemInform Abstract: Cyclization Reactions of Hydrazones Induced by Isocyanates.
Authors: SANEMITSU Y. , NAKAYAMA Y.
Published: May 2016

Die Hydrazone (I), (IV), (VI) und (VIII) cyclisieren bei der Umsetzung mit den Isocyanaten (II) bzw. dem Isothiocyanat (XIII) zu den Heterocyclen (III), (V), (VII), (IX) und (XIV).
ChemInform Abstract: Photochemical 2‐Alkylation of Cyclohexane‐1,3‐diones with Enol Ethers.
Authors: BERRY N. M. , DAREY M. C. P. , HARWOOD L. M.
Published: May 2016

Aus den 1,3‐Cyclohexandionen (I) entstehen mit den Enolethern (II) bei der Bestrahlung die 2‐Alkylierungsprodukte (III); in gleicher Weise reagieren die Enolether (IV) und (VI), während Methoxymethylen‐cyclohexan (VIII) nicht reagiert.
ChemInform Abstract: One‐Bond 13C ‐13C Coupling Constants as a Probe for Carbocation Structure.
Authors: JONSAELL G. + , AHLBERG P.
Published: May 2016

In superacid medium the cation (II) is generated from the sec. alcohol (I) with 13C scrambling among all positions.
ChemInform Abstract: Bromination of Unsaturated Sultams and Sultones.
Authors: DOSS S. H. , ABU ZEID N. R.
Published: May 2016

Das Sulton (I) kann je nach Reaktionsbedingungen zu den Verbindungen (II)‐(IV) bromiert werden.
ChemInform Abstract: Organic Conductors Based on Diradicals: The Benzobisdithiazole (BBDT) System.
Authors: WILLIAMS K. A. , NOWAK M. J. , DORMANN E. , WUDL F.
Published: May 2016

Das Tetrathiophenol (I) reagiert mit Chlor und Trimethylsilylazid (II) zum Salz (III), dessen Metathese zum Bis‐hexa?uorophosphat (IV) führt.
ChemInform Abstract: Actinide Structural Studies. Part 10. A Mixed Oxidation State Neptunyl Chloride: Crystal Structure of Cs7(Np(V)O2)(Np(VI)O2))Cl12 .
Authors: ALCOCK N. W. , FLANDERS D. J. , BROWN D.
Published: May 2016

The mixed‐valent title compound crystallizes in the cubic system (I43d, Z=4).
ChemInform Abstract: Electrochemistry and Spectroscopy of Fe(phen)2(CN)2, Cp4Fe4(CO)4, and CpFe(CO)2CN in an Acidic Molten Salt.
Authors: WOODCOCK C. , SHRIVER D. F.
Published: May 2016

An extremely wide range of Lewis acidity can be achieved by varying the ratio of AlCl3 to n‐butylpyridinium Chloride contained in the molten salt mixture.
ChemInform Abstract: Synthesis of N‐Trifluoroacetyl Dehydroamino Acid Esters.
Authors: SEETHALER T. , SIMCHEN G.
Published: May 2016

Durch Eliminierung von Trimethylsilanol aus den silylierten Aminosäureestern (I) mit Methansulfonsäureanhydrid in Nitromethan oder mit Trifluoressigsäureanhydrid/Pyridin in Dichlorethan erhält man ausschließlich die Z‐konfigurierten N‐Trifluoracetyl‐dehydroaminosäureester (III).
ChemInform Abstract: Catalytic Hydrogenolysis of n,n‐Dihalobicyclo[n‐3.1.=]alkanes.
Authors: ISOGAI K. , SAKAI J.
Published: May 2016

Die katalytische Hydrierung der im Titel genannten Verbindungen (I) wird an Palladium auf Kohle und an Raney‐Nickel in methanolischer Lösung bei Atmosphärendruck untersucht.
ChemInform Abstract: Cyclotrimerization of 3(2H)‐Benzo[b]furanone, 3‐Acetoxybenzo[b]thiophene and 3(2H)‐Benzo[b]selenophenone in Trifluoroacetic Acid.
Authors: BERGMAN J. , EGESTAD B.
Published: May 2016

The title reaction provides the trimeric products (IIa)‐(IIf) from the corresponding bicyclic Substrates (I) or (III) [used instead of (Ie)].
ChemInform Abstract: Syntheses and in vitro Evaluation of 4‐(2‐Aminoethyl)‐2(3H)‐indolones and Related Compounds as Peripheral Prejunctional Dopamine Receptor Agonists.
Authors: DEMARINIS R. M. , GALLAGHER G. JUN. , HALL R. F. , FRANZ R. G. , WEBSTER C. , HUFFMAN W. F. , SCHWARTZ M. S. , KAISER C. , ROSS S. T. , WILSON J. W. , HIEBLE P.
Published: May 2016

Ausgehend vom Amin (I) werden in vielstufigen Reaktionsfolgen verschiedene 4‐Aminoethylindolone (II) hergestellt und auf ihre Wirkung als Dopamin‐Rezeptor‐Agonisten untersucht.
ChemInform Abstract: Synthesis of the Nitrile and Some Esters of 3,3‐Dimethyl‐2‐oxochroman‐4‐acetic Acid.
Authors: BOJILOVA A. , IVANOV C.
Published: May 2016

Die Umsetzung der 3‐Akzeptor‐substituierten Cumarine (I) mit Isobuttersäureanhydrid (II) in Gegenwart von Triethylamin führt unter Umlagerung zu den 3,3‐Dimethyl‐2‐oxochroman‐Derivaten (III).
ChemInform Abstract: Series on Antimalarial Drugs. Part 60. Synthesis, Antimalarial Activity and Quantitative Structure‐Activity Relationships of Tebuquine and a Series of Related 5‐[(7‐Chloro‐4‐quinolinyl)aminol‐3‐[(alkylamino)methyl][1,1′‐biphenyl]‐2‐ols and N‐Oxides.
Authors: WERBEL L. M. , COOK P. D. , ELSLAGER E. F. , HUNG J. H. , JOHNSON J. L. , KESTEN S. J. , MCNAMARA D. J. , ORTWINE D. F. , WORTH D. F.
Published: May 2016

Ausgehend von den Arylpropanonen (I) bzw. den o‐Arylphenolen (V) werden auf den im Formelschema skizzierten Wegen die Acetaminophenole (IV) synthetisiert, aus denen durch Mannich‐Reaktion und nachfolgende Hydrolyse die Aminomethyl‐aminophenole (X) zugänglich sind.
ChemInform Abstract: Polycyclic N‐Hetero Compounds. Part 25. Synthesis of Novel D‐Homo‐11,13,15‐triazasteroidal Skeleton and Investigation of Its Antidepressive Activity.
Authors: HIROTA T. , KAWANISHI K. , SASAKI K.
Published: May 2016

Die im Titel genannten heterocyclischen Systeme (V), (XI), (XIV), (XVI I) und (XIX) werden, ausgehend von den Dihydrobenzochinazolinen (I) bzw. (VI), gemäß den im Formelschema angegebenen Verfahren synthetisiert und auf ihre antidepressive Wirkung untersucht.
ChemInform Abstract: Reactions of Cyclic Anhydrides. Part 11. A Facile Approach to Pyrrolo‐3,1‐benzoxazinones via Anilic Acids.
Authors: BALSUBRAMANIYAN V. , ARGADE N. P.
Published: May 2016

Aus den Maleinsäureaniliden (I) erhält man mit Acetanhydrid/Natriumacetat die Pyrrolobenzoxazinone (II); aus dem Fumarsäure‐Derivat (III) entsteht das 3,1‐Benzoxazinon (IV).
ChemInform Abstract: Quinazoline Carboxylic Acids. Part 14. Synthesis of 1,2,3‐Benzotriazinone Benzoic Acids.
Authors: SUESSE M. + , JOHNE S.
Published: May 2016

The compounds (I) are converted into (II).
ChemInform Abstract: Phosphorus Containing Enamines. Part 4. Reaction of Alkyl and Phenyl Substituted N‐Vinylpyrroles with Phosphorus Pentachloride.
Authors: ROZINOV V. G. , PENSIONEROVA G. A. , DONSKIKH V. I. , SERGIENKO L. M. , KOROSTOVA S. E. , MIKHALEVA A. I. , DOLGUSHIN G. V.
Published: May 2016

Das N‐Vinyl‐octahydrocarbazol (I) reagiert mit Phosphorpentachlorid unter starker Harzbildung zu dem Hexachlorophosphat (II), das mit Schwefeldioxid in das Phosphonsäurechlorid (III) übergeht.
ChemInform Abstract: Reaction of Chlorides of Trivalent Arsenic with Paraformaldehyde.
Authors: GOLOVANOV A. V. , MASLENNIKOV I. G. , MEDVEDEV A. E. , KIRICHENKO L. N. , LAVRENT'EV A. N.
Published: May 2016

Arsentrichlorid (Ia) bzw. Methyldichlorarsin (Ib) reagieren mit Paraformaldehyd (II) zu den 1:1‐Addukten (III).
ChemInform Abstract: Schiff Base Complexes of the Rarer Platinum Metals.
Authors: ALTEPARMAKIAN V. , ROBINSON S. D.
Published: May 2016

The reactions between salicylideneamines and hydrido or low oxidation state phosphine Complexes of the platinum metals as shown in the scheme afford convenient routes to a very extensive range of new Ru, Os, Rh, and Ir Schiff base Complexes in excellent yield.
ChemInform Abstract: Syntheses of 2,4‐Substituted Homo‐C‐pyrimidinenucleosides.
Authors: RENZ H. , SCHLIMME E.
Published: May 2016

The synthesis of the compound (VI) is realized by two routes: 1. The phosphorane (Ib) obtained from (Ia) is condensed with the ribose derivative (II) via Wittig reaction to give the homo‐C‐nucleoside (III).
ChemInform Abstract: Crystal Structures of the Compounds BaNb2P2O11 and NbPO5, Obtained from the System BaO ‐ Nb2O5 ‐ P2O5.
Authors: MURASHOVA E. V. , TRUNOV V. K. , VELIKODNYI YU. A.
Published: May 2016

Heating of a mixture of BaCO3, Nb2O5 and NH4H2PO4 to 1200°C yields the compound BaNb2P2O, " which belongs to the space group Räc (Z = 6).
ChemInform Abstract: Reaction During Sintering of Barium Titanate with Lithium Fluoride.
Authors: GUHA J. P. , ANDERSON H. U.
Published: May 2016

Sintering (700‐900°C) of BaTiO3 with LiF as a densification aid results in the formation of a cubic solid solution and Li2TiO3.
ChemInform Abstract: Evidence for the Thermal Generation of Superoxide Ions on La2O3.
Authors: WANG J.‐X. , LUNSFORD J. H.
Published: May 2016

O2" ions formed on the surface of a La2O3 sample which has been heated in O2 at 650°C (1 h) and then quenched to ‐ 196°C (in liquid N2 as well as in liquid O2) have been detected by EPR spectroscopy.
ChemInform Abstract: Scanning Electron Microscopy and Transmission Electron Microscopy Study of Ferroelectric Domains in Doped BaTiO3.
Authors: HU Y. H. , CHAN H. M. , WEN Z. X. , HARMER M. P.
Published: May 2016

It is demonstrated (hat SEM and TEM can be used for the identification of domain structures.
ChemInform Abstract: New Aspects of the Electrochemistry of Heteropolyacids. Reduction Currents as a Probe of Solvent‐Electrolyte Interactions.
Authors: KEITA B. , LUCAS T. , NADJO L.
Published: May 2016

Studies of the first wave of the heteropolyanions siw"02"‐ (siw"), PW,2O?,0′ , and Pzwwog; in acidic aqueous solution by linear sweep voltammetry at RDE result in theconclusion that SiW,2 can be used to probe the structure of electrolyte solutions adequately and discriminatingly.
ChemInform Abstract: Reaction of the NO3 Radical with CO: Determination of an Upper Limit for the Rate Constant Using FTIR Spectroscopy.
Authors: HJORTH J. , OTTOBRINI G. , RESTELLI G.
Published: May 2016

The NO3 radical which is formed by reaction of NOx with O3 is a common constituent of the nighttime troposphere.
ChemInform Abstract: Kinetics and Mechanism of the OH + ClO2 Reaction.
Authors: POULET G. , ZAGOGIANNI H. , LE BRAS G.
Published: May 2016

By measurements in a discharge flow system over the temp. range 293‐473 K and at low pressures between 0.5 and 1.4 torr, using EPR or laser‐induced fluorescence to monitor the pseudo first‐order decay of OH, a negative temp. dependence is observed for the rate constant of the title reaction [k1 = 4.5·10‐13 exp(804/T) cm3 molecule‐1 s‐1].
ChemInform Abstract: Temperature‐Programmed Desorption Study of H2‐D2 Exchange on Pt(111) and the Role of Subsurface Sites.
Authors: GREENLIEF C. M. , AKHTER S. , WHITE J. M.
Published: May 2016

No exchange is observed on the presaturated Pt surface below 120 K, while above 120 K two different exchange rates are obtained.
ChemInform Abstract: Neutral Metal Cluster Formation and Oxidation Reactions in the Photolysis of Iron Carbonyl van der Waals Complexes.
Authors: WHEELER R. G. , DUNCAN M. A.
Published: May 2016

Iron Clusters (Fex) and iron Cluster carbonyls (Fe"(CO)y) are produCed by UV multiphoton ionization of [Fe(CO)5]N Complexes prior to photoionization.
ChemInform Abstract: The Nature of the Active Species in the Chlorinating System Sulphur(I) Chloride
Authors: GLIDEWELL C.
Published: May 2016

Aluminium Chloride‐ Sulphuryl Chloride.
ChemInform Abstract: 2n Framework Electron Clusters: Diamagnetic Polyhedral Boron Chlorides, BnCln (n: 8‐12), from the Thermal Disproportionation of Diboron Tetrachloride.
Authors: DAVAN T. , MORRISON J. A.
Published: May 2016

The thermal decomposition of undiluted B2Cl4, generated from the rf discharge of BCI3 in the presence of elemental Hg, affords B"Cl" (n: 8‐ 12) and (B9Cl3)2 and is shown to occur in five stages.
ChemInform Abstract: Preparation of Fine Alumina Powder in Alcohol.
Authors: FANELLI A. J. , BURLEW J. V.
Published: May 2016

Fine alumina powder has been prepared at 250°C from a solution of aluminum seQ‐butoxide in sec.‐butanol.
ChemInform Abstract: Anhydrous Tantalum(V) Perchlorate and Cesium Perchloratotantalates.
Authors: BABAEVA V. P. , ROSOLOVSKII V. YA.
Published: May 2016

Reaction between TaCl5 and anhydrous HClO4 at 0 °Cyields Ta(ClO4)5, which decomposes at 90°C to give Cl2O7 and Ta0(ClO4)3.
ChemInform Abstract: Weak Curie‐Type Paramagnetism of High‐Nuclearity Platinum Carbonyl Clusters: Anomalous Magnetic Behavior.
Authors: TEO B. K. , DISALVO F. J. , WASZCZAK J. V. , LONGONI G. , CERIOTTI A.
Published: May 2016

The large platinum carbonyl Clusters (I)‐(IV) are diamagnetic at room temp. but weakly paramagnetic at low temperature.
ChemInform Abstract: Structure of an Unusual 5:2 Methylmercury:Adenine Complex.
Authors: CHARLAND J.‐P. , BRITTEN J. F. , BEAUCHAMP A. L.
Published: May 2016

The previously prepared complex (I) (space group PT, Z=2) and [(MeHg)2(adenine)]NO3 were dissolved in hot water.
ChemInform Abstract: Biological Significance of Cimetidine Sulfoxide Complexes with Copper(II) and Zinc(II) Ions During Cimetidine Treatment.
Authors: FREIJANES E. , BERTHON G.
Published: May 2016

The stability constants of the copper and zinc Complexes of the Cimetidine sulfoxide, the major metabolite ofcimetidine, are determined under physiological conditions.
ChemInform Abstract: Depression of the Complex Formation Between Zinc Tetraphenylporphyrintrisulfonate (Zn‐TPPS33‐ )and Viologen by the Addition of Surfactant Micelles.
Authors: OKURA I. , KITA T. , AONO S. , KAJI N.
Published: May 2016

On the basis of absorption spectra it is shown that the 1 :l Complex formation between Zn‐TPPS? and methylviologen is fairly depressed in the presence of SDS.
ChemInform Abstract: Electrochemistry of [M(CO)3Cp]2, [M(CO)3Cp]+, [M(CO)3Cp]‐, and M(CO)3Cp Where M: Mo and W.
Authors: KADISH K. M. , LACOMBE D. A. , ANDERSON J. E.
Published: May 2016

The complete electrochemical mechanisms for the reduction and oxidation of the metal‐metal‐bonded complexes (I) and their associated monomeric cationic and anionic species are determined by cyclic voltammetry.
ChemInform Abstract: Stereoselective Synthesis of (E)‐ and (Z)‐Disubstituted Vinyl Bromides via Organoboranes.
Authors: BROWN H. C. , BHAT N. G. , RAJAGOPALAN S.
Published: May 2016

Die durch Hydroborierung der Alkine (I) und (IV) stereospezifisch zugänglichen Vinyldimethoxyborane (III) bzw. (VI) werden durch Umsetzung mit Brom und nachfolgende Behandlung mit Base selektiv in E‐ bzw. Z‐disubstituierte Vinylbromide (VII) bzw. (VIII) übergeführt.
ChemInform Abstract: Aldol Addition of a Lithium Ketone Enolate with Persubstituted Double Bond.
Authors: HAENER R. + , SCHWEIZER W. B. , SEILER P. , SEEBACH D.
Published: May 2016

Das Lithiumenolat (I) wird aus i tert.‐Butylmethylketen und Benzyllithium hergestellt und reagiert mit Benzaldehyd (II) zum Aldoladdukt (III).
ChemInform Abstract: Stereoselectivity of Cycloaddition of N‐(Cyanomethyl)‐ and N‐(α‐Cyanobenzyl)imines with Olefinic Dipolarophiles.
Authors: TSUGE O. , UENO K. , KANEMASA S. , YOROZU K.
Published: May 2016

The cyanomethylimine (I) can tautomerize ′to the corresponding N‐protonated azomethine ylide which undergoes Cycloaddition with (II) to give ‐ depending on solvent and temp. ‐ either (III) as single stereoisomer or a mixture of (III) and (IV).
ChemInform Abstract: Cyclotrimerization of 1,4‐Dimethoxy‐but‐2‐yne on Homogenous Nickel Catalysts.
Authors: SCHULZ W. , ROSENTHAL U.
Published: May 2016

The soluble catalytic system studied, using the title compound as model, provides very high turnover numbers which have hitherto not been described for disubstituted alkynes.
ChemInform Abstract: A New Dimerization Reaction in Polyphosphoric Acid.
Authors: ERRA BALSELLS R. , PORTAL C. R. , FRASCA A. R.
Published: May 2016

When hydrazone (1) is heated in polyphosphoric acid the dimers (III) are obtained, together with the expected indole(II).
ChemInform Abstract: Cationic Cyclization of Linalyl‐ and Geranyl/Nerylacetic Acid.
Authors: JAEGER V. + , KUHN W. , BUDDRUS J.
Published: May 2016

Die Carbonsäure (I) wird zum spirocyclischen Lacton (II) kondensiert und dann in die bicyclischen Ketone (III) und (IV) übergeführt.
ChemInform Abstract: Photochemical Reaction of 2,3‐Dichloro‐1,4‐naphthoquinone with Enol Silyl Ethers.
Authors: MARUYAMA K. , TAI S. , IMAHORI H.
Published: May 2016

Reaction of the dichloronaphthoquinone (III) with mixtures of the isomeric trimethyl‐siloxy alkenes (I) and (II) [difficulties in the Separation of (I) from its byproduct (II) during the preparation of (I) from 2‐alkanones lead to the use of the mixtures] gives the oxoalkylated naphthoquinones (IV) [from (I)] and the naphthol derivatives (V) [from (II)].
ChemInform Abstract: Organic Sonochemistry. Ultrasonic Acceleration of the Reaction of Dicarbonyls with Trimethylchlorosilane in the Presence of Zinc.
Authors: BOUDJOUK P. , SO J. H.
Published: May 2016

Die reduktive O‐Silylierung des Chinons (I) bzw. des 1,2‐Diketons (III) verläuft unter Ultrabeschallung schneller als unter üblichen Bedingungen und liefert durchweg höhere Ausbeuten der Silyl‐ Derivate (II) bzw. (IV).
ChemInform Abstract: Silver‐induced Conversion of α‐Chloroketimines into 2,2‐Dimethyl‐3‐(N‐alkyl)imino‐ 8‐oxabicyclo[3.2.1]oct‐6‐enes.
Authors: DE KIMPE N. , PALAMAREVA M. , VERHE R. , DE BUYCK L. , SCHAMP N.
Published: May 2016

The tautomerizable α‐chloroketimines (I) are converted to the delocalized ions (II) in the presence of 1 mol equiv. of AgBF4 or AgSbF6 (Ag2CO3 or AgNO3 are ineffective).
ChemInform Abstract: AlCl3‐Promoted Conjugate Reduction of α,β‐Unsaturated Carbonyl Compounds with 1,3‐Dimethyl‐2‐phenylbenzimidazoline.
Authors: CHIKASHITA H. , ITOH K.
Published: May 2016

With a view to finding Optimum reaction conditions for the reduction specified in the title, preliminary experiments are Carried out showing that (Ia) is a more effective reducing agent than its analogues (Ic) and (Id), and that AlCl3 should be preferred to other Lewis acids.
ChemInform Abstract: Substitution Reactions of Brominated Aromatic Heterocycles with Thiols.
Authors: FUJIMOTO M. , KATSURADA M.
Published: May 2016

Durch Substitution sind aus den bromierten Heterocyclen (I), (III), (V) bzw. (VII) die entsprechenden Thioverbindungen (II), (IV), (VI) bzw. (VIII) zugänglich; nur bei (VII) erhält man überwiegend die debromierte Verbindung (IX).
ChemInform Abstract: A Convenient Procedure for the Reductive Desulphurization of Thioethers with Nickel Boride.
Authors: EUERBY M. R. , WAIGH R. D.
Published: May 2016

Die Alkylthio‐ und Arylthio‐substituierten Aromaten (I), (III), (V), (VII) oder (IX) werden durch in situ hergestelltes Nickelborid in Methanol zu den Aromaten (II), (IV), (VI), (VIII) bzw. (X) desulfuriert.
ChemInform Abstract: Synthesis of Poly(S,S‐dimethylsulfilimino)heterocycles.
Authors: COBURN M. D. , HAYDEN H. H. , COON C. L. , MITCHELL A. R.
Published: May 2016

Das aus Dimethylsulfoxid und Trifluormethänsulfonsäureanhydrid bei ‐78°C zugängliche Dimethylsulfid‐ditriflat ist ein geeignetes Reagens, um heterocyclische Amine (I) in S,S‐Dimethylsul?limino‐Heterocyclen (II) bzw. (III) überzuführen.
ChemInform Abstract: Nucleophilic Properties of Non‐Functionalized Monohalocarbenoids.
Authors: VILLIERAS J. , KIRSCHLEGER B. , TARHOUNI R. , RAMBAUD M.
Published: May 2016

The Coupling of Compounds with the formula R′‐CXLi‐R2 (R′: ‐ alkyl; R2: ‐H, ‐Me; X: ‐Cl, ‐Br) with carbonyl Compounds at ‐ l I5°C leads to the formation of lithium salts of halohydrins which readily produce epoxides in the presence of LiBr.
ChemInform Abstract: A Novel C10 Terpene Synthon: 2‐Methyl‐6‐methylene‐1,3E,7‐octatriene.
Authors: MAGNANI G. , MOREL D. , COLLEUILLE Y. , MERCIER C.
Published: May 2016

Aus dem Chlor‐trien (I) wird das Tetraen (II) hergestellt und mit Acetessigsäureester in Gegenwart von Rhodium‐Katalysatoren zu den Ketoestern (IIIa) und (IVa) kondensiert.
ChemInform Abstract: Practical and Stereocontrolled Syntheses of Both (lR*,3S*)‐ and (1R*,3R*)‐3‐(2‐Chloro‐3,3,3‐trif1uoro‐1‐propenyl)‐2,2‐dimethylcyclopropanecarboxylates.
Authors: FUJITA M. , HIYAMA T. , KONDO K.
Published: May 2016

Aus den Aldehyden (I) erhält man mit Trichlortri?uorethan (II) in Gegenwart von Zink in DMF die Alkohole (III), die zu (IV) acetyliert und dann mit Zink/DMF in die Olefine (W übergeführt werden.
ChemInform Abstract: Syntheses and Properties of Pentatrideca‐, Pentapentadeca‐, Pentaheptadeca‐, and Pentanonadecafulvalene Derivatives.
Authors: OJIMA J. , ITAGAWA K. , NAKADA T.
Published: May 2016

Reaction of the bisdehydroannulenone (I) with cyclopentadienide generated from (II) gives the title compound (III).
ChemInform Abstract: Coupling Reaction of Grignard Reagents with α,ω‐Dibromoalkanes in the Presence of Copper(I) Bromide‐HMPA: Preparation of α,ω‐Bis(vinylaryl)alkanes.
Authors: NISHIMURA J. , YAMADA N. , HORIUCHI Y. , UEDA E. , OHBAYASHI A. , OKU A.
Published: May 2016

The reaction of Grignard reagents (I) and (IIa) with dibromides (III) in the presence of small amounts of CuBr and HMPA affords mixtures of (IV)‐(VI) in overall yields of 88‐ 100% [only 60% for the analogous products if iPrMgBr is employed instead of (I)].
ChemInform Abstract: Synthesis and Determination of Configuration of 3‐Cyano‐1,3‐diphenylprop‐2‐en‐ l‐one.
Authors: HERZIG J. , GOTTLIEB H. E. , NUDELMAN A.
Published: May 2016

Dehydrogenation of (I) with S602 gives the title compound as a mixture of the isomers (II) and (III).
ChemInform Abstract: Selective Photoalkylamination and Photohydroxylation of Aminoanthraquinones and Their N‐Acylated Derivatives.
Authors: YOSHIDA K. , HIKASA M. , ISHII K. , KADOTA H. , YAMASHITA Y.
Published: May 2016

Durch Belichtung der Amino‐ bzw. Acylamino‐anthrachinone (I) mit denAlkylaminen (II) in Gegenwart von Luft oder reinem Sauerstoff erhält man die Hydroxy‐ (III) und (V) bzw. die Alkylamino‐Derivate (IV) und (VI).
ChemInform Abstract: A Biomimetic Synthesis of Polycyclic Polyoxygenated Aromatic Compounds via Polyketides.
Authors: YAMAGUCHI M. , HASEBE K. , MINAMI T.
Published: May 2016

Aus den Glutarsäureestern (I) und dem Dianion (II) erhält man über die Polyketone (III) mit Calciumacetat die TetraIon‐dicarbonsäureester (IV).
ChemInform Abstract: An Expeditious Synthesis of Anthracyclines.
Authors: CAMERON D. W. , FEUTRILL G. I. , GRIFFITHS P. G. , MERRETT B. K.
Published: May 2016

Die Synthese der tetracyclischen Ketone (VI) und (VII) erfolgt ausgehend von den Chlorverbindungen (I).
ChemInform Abstract: Preparation of 5‐Alkyl‐ and 5‐Arylalkyl‐2‐methyl‐benzofuran‐6,7‐dicarboxylic Acids.
Authors: CABARES J. , MAVOUNGOU‐GOMES L.
Published: May 2016

The ketones (I), available from the 2‐alkyl‐ and Z‐arylalkylfurans, react with the diester (II) to give the Cycloadducts (III).
ChemInform Abstract: Stereoselective Kinetic Protonation of Chiral γ‐Lactone Enolates.
Authors: TAKANO S. , KUDO J. , TAKAHASHI M. , OGASAWARA K.
Published: May 2016

Aus den Lactonen (I) entstehen die Enolate (II), deren Protolyse überwiegend zu den ogy‐syn‐Verbindungen (III) neben geringen Anteilen der ow‐anti‐Form (IV) führt.
ChemInform Abstract: Regioselective Synthesis of the Spiro‐benzofuran Unit, Present in Several Natural Products, by an Intramolecular Michael Cyclization.
Authors: SPANEVELLO R. A. , GONZALEZ‐SIERRA M. , RUVEDA E. A.
Published: May 2016

Das ausgehend vom Ketoester (I) über den ogß‐ungesättigten Aldehyd (IIIc) gemäß Schema hergestellte Enon (VII) liefert nach Etherspaltung mit Bortribromid über eine intramolekulare Michael‐Addition ein chromatographisch trennbares Gemisch der beiden isomeren Spirobenzofurane (VIII) und (IX) sowie des Enons (X).
ChemInform Abstract: Palladium Catalysis in the Synthesis of Indoloquinones.
Authors: HEGEDUS L. S. , WEIDER P. R. , MULHERN T. A. , ASADA H. , D'ANDREA S.
Published: May 2016

The indoles (I) and (V) react readily with methyl acrylate (II) under Pd catalysis to give the corresponding insertion products (III), (IV) and (VI).
ChemInform Abstract: Enamines. Part 3. A New Synthesis of Substituted 2‐Arylisatogens and o‐Nitrophenyl Benzyl Ketones.
Authors: BHAMARE N. K. , KAMATH H. V. , KULKARNI S. N.
Published: May 2016

The ketones (V) are synthesized Starting from the o‐or p‐toluenes (I) and cyclodehydrated to give the title compounds (VI) which in turn can be obtained directly from the morpholinostyrenes (IV) on treatment with refluxing NaOAc/ AcOH‐buffer.
ChemInform Abstract: A Preparative Method for Blocking of Ketone Group in 2,2‐Dimethyl‐3‐(2‐oxopropyl)‐cis‐cyclopropaneacetaldehyde.
Authors: KULA J.
Published: May 2016

Die Blockierung der Ketofunktion im zz‐Ketoaldehyd (I) wird aufdem im Schema angegebenen Reaktionsweg erreicht.
ChemInform Abstract: The Intramolecular Nitrile Oxide Cycloaddition Route to Forskolin.
Authors: BARALDI P. G. , BARCO A. , BENETTI S. , POLLINI G. P. , POLO E. , SIMONI D.
Published: May 2016

α‐Damascon (I) liefert mit Nitromethan das Michael‐Addukt (II), das über ein intermediäres Nitriloxid in den Heterocyclus (III) übergeht.
ChemInform Abstract: Synthesis and Structures of Pyrazoles from Ethoxymethylene Derivatives of 1,3‐Dicarbonyl Compounds and Hydrazines.
Authors: NAGARAJAN K. , ARYA V. P. , SHENOY S. J.
Published: May 2016

The reaction of (IVa) with the hydrazines (Ia)‐(Ic) yields the corresponding pyrazoles (II) [only minor amounts of (III) can be isolated], whereas (III) becomes the major product if aromatic Substrates (Id), (Ie) are employed.
ChemInform Abstract: Synthesis of Isomeric Δ2‐Pyrazolines.
Authors: THAKARE V. G. , WADODKAR K. N.
Published: May 2016

The reactions of the chalcones (I) with hydrazine hydrate (II) do not give the reported chalcone hydrazones but the pyrazolines (III).
ChemInform Abstract: Synthesis of a Triazolophenanthridine via Photocyclization of 3,4‐Diaryl‐5‐hydroxy‐ Δ2‐1,2,4‐triazoles.
Authors: DEVI M. R. , PANDEY G. , RAO J. M. , SRINIVASAN V. R.
Published: May 2016

The title reaction of the triazoles (I) yields the ring system (II).
ChemInform Abstract: Synthesis of Coumarino[4′,3′:3,4]isocoumarins, Coumarino[7′,6′:3,4]isocoumarins and Dibenzo‐α‐pyrones.
Authors: RANI B. S. U. , DARBARWAR M.
Published: May 2016

A series of title compounds is prepared by condensation of reactive phenols with 2‐bromobenzoic acid (II) and tested for antibacterial and antifungal activity.
ChemInform Abstract: Synthesis and Rat Lens Aldose Reductase Inhibitory Activity of Some Benzopyran‐2‐ones.
Authors: BRUBAKER A. N. , DERUITER J. , WHITMER W. L.
Published: May 2016

Eine Reihe substituierter Benzopyranone (III), (IX) und (X) sowie die Naphthopyranone (V) und (VII) werden nach bekannten Methoden, z.B. durch die Pechstein‐Synthese, hergestellt und auf ihre Wirkung als lnhibitoren der Aldose‐ Reduktase (AR) untersucht.
ChemInform Abstract: Probes for Narcotic Receptor Mediated Phenomena. Part 12. cis‐(+)‐3‐Methylfentanyl Isothiocyanate, a Potent Site‐Directed Acylating Agent for δ Opioid Receptors.
Authors: BURKE T. R. JUN. , JACOBSON A. E. , RICE K. C. , SILVERTON J. V. , SIMONDS W. F. , STREATY R. A. , KLEE W. A.
Published: May 2016

Die beiden Enantiomeren des cis‐3‐Methylfentanylisothiocyanats (IXc) bzw. (IXd) werden ausgehend vom Ketoester (I) auf dem im Formelschema angegebenen Weg synthetisiert.
ChemInform Abstract: Synthesis of 9‐Substituted 5‐(p‐Tolyl)‐5,6,8,9,10,11‐hexahydro‐4H‐isoquinolino[4,5‐g]quinoline‐4,6,8‐triones (Condensed Naphthalimidopyridones) from 4‐Amino‐ N‐(p‐tolyl)naphthalimide.
Authors: LOKHANDE S. B. , RANGNEKAR D. W.
Published: May 2016

Reaction of the naphthalimide (I) with the esters (II) yields the compounds (III) (intensive orange‐blue fluorescence) which are cyclized to the title compounds (IV) (weak red‐green fluorescence).
ChemInform Abstract: Reaction of Spiro[4H‐3,1‐benzoxazine‐4,4′‐piperidin]‐2(1H)‐one Derivatives and Related Compounds with Phosphorus Oxychloride.
Authors: TAKAI H. , OBASE H. , TERANISHI M.
Published: May 2016

Aus den Spiroverbindungen (I) werden durch Erhitzen mit Phosphoroxychlorid durch eine neuartige Umlagerungsreaktion die Hexahydrodiazaphenanthrene (II) erhalten.
ChemInform Abstract: A General and Convenient Synthesis of 7‐Alkyladenines from Adenine by Regioselective Alkylation Utilizing Blocking/Deblocking at the 3‐Position.
Authors: LEONARD N. J. , FUJII T. , SAITO T.
Published: May 2016

Alkylierung von 3‐Benzyladenin (I) liefert die Salze (III), die durch katalytische Hydrierung bzw. durch Reaktion mit Schwefelsäure in Toluol selektiv in 3‐Stellung debenzyliert werden.
ChemInform Abstract: Reactions of Polyfluoroalkyl o‐Nitrobenzenesulfonates with 1,4‐Diazabicyclo[2.2.2]octane.
Authors: KUWABARA M. , MIURA H. , FUKUNISHI K. , NOMURA M. , YAMANAKA H.
Published: May 2016

Die o‐Nitrobenzolsulfonsäureester (Ia) und (Ib) reagieren mit Dabco (II) zu den Dabco‐Salzen (III), während die mit Iängerkettigen Perfluoralkylresten substituierten Sulfonsäureester (Ic) und (Id) unter diesen Bedingungen nicht reagieren.
ChemInform Abstract: Reactions of Diaroylethylenes with o‐Phenylenediamine and Its Derivatives.
Authors: ORLOV V. D. , INSUASTI B. , DESENKO S. M.
Published: May 2016

Die o‐Phenylendiamine (I) reagieren mit den Diaroylethylenen (II) in Gegenwart von geringen Mengen Salzsäure zu den Dihydrochinoxalinen (III).
ChemInform Abstract: 1,3‐Oxazines and Related Compounds. Part 12. Facile Synthesis of 2,4‐Disubstituted 6H‐1,3‐Oxazine‐6‐ones.
Authors: YAMAMOTO Y. , MORITA Y. , MINAMI K.
Published: May 2016

Thermolyse der aus den Acylimidaten (III) und Meldrumsäure (IV) zugänglichen Alkyliden‐ l ,3‐dioxandione (V) führt unter Decarboxylierung und Eliminierung von Aceton über die hochreaktiven Ketenintermediate (VI) zu den im Titel genannten Verbindungen (VII).
ChemInform Abstract: Synthesis and Anticoccidial Activity of 3‐(Substituted Benzylidenehydrazino)‐6‐(4‐chlorophenyl)‐1,2,4‐triazines.
Authors: SHIBAMOTO S. , NISHIMURA T.
Published: May 2016

Die im Titel genannten Verbindungen (VI) werden auf dem gezeigten Weg erhalten und auf ihre Anticoccidiose‐Eigenschaften geprüft.
ChemInform Abstract: Divinylsulfide. Part 15. Cycloaddition of Divinylsulfide and Its 2‐Methyl Derivatives to Thiourea and N‐Monoalkyl(aryl)thioureas.
Authors: GAVRILOVA G. M. , AMOSOVA S. V. , TROFIMOV B. A. , KOSITSYNA E. I. , PERTSIKOV B. Z. , GOSTEVSKAYA V. I. , MUSORIN G. K. , AL'PERT M. L. , BORODINA N. M.
Published: May 2016

Die Divinylsul?de (I) reagieren mit den Thioharnstoffen (II) zu den Dithiaziniumsalzen (III) und/oder (IV), aus denen durch Einwirkung von Basen die l,3,5‐Dithiazine (V) bzw. (VI) entstehen.
ChemInform Abstract: Syntheses and Properties of α‐Alky1‐Substituted Bisdehydroaza[14]‐annulenes and the Related Benzannelated Derivatives.
Authors: OJIMA J. , YAGI Y. , EJIRI E. , ISHIZAKA S. , KATO T.
Published: May 2016

Oxime formation of (I) followed by Beckmann rearrangement yields the lactams (III), which are ethylated to give the azaannulenes (V).
ChemInform Abstract: A Three Step Synthesis of Exaltolide and Phoracantholide I.
Authors: COSSY J. , PETE J. P.
Published: May 2016

Das Alkinol (I) wird mit w‐Brom‐undecansäure (II) zur (o‐Hydroxy‐carbonsäure (III) umgesetzt und nach Hydrierung zur gesättigten Säure zum Exaltolid (V) cyclisiert.
ChemInform Abstract: A Convenient Synthesis of Thiophen‐Derived Polyamine Macrocycles.
Authors: DANCEY K. F. , FENTON D. E. , MOSS S. , JONES G. , PRICE R.
Published: May 2016

Die aus dem Dialdehyd (I) und den Diaminen (II) hergestellten Makrocyclen (III) werden ohne Isolierung direkt mit Natriumboranat in Gegenwart von Borax zu den gesättigten Makrocyclen (IV) reduziert.
ChemInform Abstract: Reaction of Metal and Metalloid Compounds with Polyfunctional Molecules.
Authors: MARINGGELE W. , MELLER A. , NOLTEMEYER M. , SHELDRICK G. M.
Published: May 2016

The reaction of the metalated derivatives (I) with trihaloboranes yields the products (II) as well as (III) and (IV).
ChemInform Abstract: Selectivity of the Si‐C Cleavage in Compounds of Type Me3SiCH2‐R.
Authors: BORDEAU M. , DJAMEI S. M. , DUNOGUES J.
Published: May 2016

The regiochemistry of the electrophilic cleavage of the sp3‐Si‐Cbond in the Compounds Me3SiCH2‐R (R: ‐Me, ‐Cl, ‐Pr, ‐COOEI) and Me3SiCHCl2 is investigated using ICI, Me3SiOSO2CI and CI‐SO3H as electrophiles.