bluuebunny/crossref_metadata_2025_split huggingface dataset:
ChemInform Abstract: The Stobbe Condensation. Part 5. Reactions of Aryl Aldehydes with α,α‐Disubstituted Succinic Esters.
Authors: EL‐RAYYES N. R. , HOVAKEEMIAN G. H. , SAMARA A. F. 
Published: May 2016

AbstractStobbe condensation of the aldehydes (I) with the dimethyl succinic ester (II) gives the (E)‐mono‐esters (III).
ChemInform Abstract: α‐Acylaminoradical Annelation in the Diastereoselective Synthesis of 1‐ and 5‐Substituted Tetrahydropyrrolo[1,2‐c]oxazole and 1‐Substituted Pyrrolizidine Derivatives.
Authors: KANO S. , YUASA Y. , ASAMI K. , SHIBUYA S. 
Published: May 2016

AbstractRadikalische Cyclisierung der aus den Oxazolidindionen (I) bzw. dem Imid (V) gemäß Schema hergestellten Phenylthioverbindungen (II) bzw. (VI) liefert die Heterobicyclen (III) bzw. (VII) als E/Z‐Gemisch, die zu den Exomethylenverbindungen (IV) bzw. (VIII) desilyliert werden.
ChemInform Abstract: The Phospha‐Cope Rearrangement of 3‐Aryl‐3λ‐phospha‐1,5‐hexadiene Derivatives.
Authors: KAWASHIMA T. , MIKI Y. , TOMITA T. , INAMOTO N. 
Published: May 2016

AbstractDie Aryl‐vinyl‐allylphosphinoxide, ‐sulfide und ‐selenide (I), deren Herstellung beschrieben ist, unterliegen beim Erhitzen in siedendem Hexanol einer Hetero‐Cope‐Umlagerung zu den Verbindungen (II), die mit dem Lösungsmittel zu den isolierbaren Phosphinaten (III) reagieren.
ChemInform Abstract: Photolysis of Cyclic Arylvinyl Halides. Formation of 1,2‐Benzo‐1,3‐cycloalkadienyl Cations and Their Rearrangements.
Authors: KITAMURA T. , MUTA T. , TAHARA T. , KOBAYASHI S. , TANIGUCHI H. 
Published: May 2016

AbstractDie photolytisch aus den cyclischen Vinylhalogeniden (I) bzw. (VII) generierten Vinylkationen lagern sich in Abhängigkeit von der Ringgröße zu den im Schema angeführten Produkten um.
ChemInform Abstract: Photolysis of Azidopyrimidines in the Presence of Molecular Oxygen and Formation of Nitropyrimidines.
Authors: MAMAEV V. P. , ANDREEVA T. A. , KRIVOPALOV V. P. , EROSHKIN V. I. 
Published: May 2016

AbstractDie Photolyse der Azidopyrimidine (I) in verdünnter Lösung unter Durchleiten von Luft ergibt die Nitropyrimidine (II).
ChemInform Abstract: De‐Mayo Reactions with Allene. A Short Path to the Bicyclo[5.3.1]undecane System of Taxanes.
Authors: KACZMAREK R. , BLECHERT S. 
Published: May 2016

AbstractDie aus dem Alkohol (Ia) erhaltenen Ester (Ib) and (Ic) liefern bei der Photolyse mit Allen die Addukte (IIb) und (IIc), die zu (IIa) hydrolysiert werden können.
ChemInform Abstract: Allylstannane Photoadditions to Iminium Salts. Efficiencies of Sequential Electron Transfer Destannation versus Desilylation Pathways.
Authors: BORG R. M. , MARIANO P. S. 
Published: May 2016

AbstractDas Iminiumsalz (I) reagiert mit den Allyl‐metallverbindungen (II) bei der Photolyse in Methanol zu dem 2‐Allyl‐N‐methyl‐pyrrolidin (III).
ChemInform Abstract: A Convenient "One‐Pot" Synthesis of Epoxy Alcohols via Photooxygenation of Olefins in the Presence of Titanium(IV) Catalyst.
Authors: ADAM W. , GRIESBECK A. , STAAB E. 
Published: May 2016

AbstractDie Olefine (I) werden mit Singulett‐Sauerstoff in Gegenwart von Titanalkoholaten (II) zu den diastereomeren Epoxy‐alkoholen (III) oxidiert.
ChemInform Abstract: Gas‐Phase Reactivity of the HCO Radical with Unsaturated Hydrocarbons: An Experimental and Theoretical Study.
Authors: LESCLAUX R. , ROUSSEL P. , VEYRET B. , POUCHAN C. 
Published: May 2016

AbstractThe title radical (II) forms products with the unsaturated hydrocarbons (III) and (VI) in the range 350‐5 l0 Kvia an addition mechanism.
ChemInform Abstract: Samarium Diiodide. An Efficient Catalyst Precursor in Some Oppenauer Oxidations.
Authors: COLLIN J. , NAMY J.‐L. , KAGAN H. B. 
Published: May 2016

AbstractDie Oppenauer‐Oxidation der sekundären Alkohole (I) mit Butanon (II) unter Katalyse durch Smlz liefert die Ketone (III).
ChemInform Abstract: Reduction of Oximes with Hydrosilane/H+ Reagent.
Authors: FUJITA M. , OISHI H. , HIYAMA T. 
Published: May 2016

AbstractDie Oximether (I) werden durch Dimethylphenylsilan (II) in Trifluoressigsäure zu den Hydroxylaminen (III) reduziert.
ChemInform Abstract: Nitric Acid on Silica Gel: A Useful Nitrating Reagent for Activated Aromatic Compounds.
Authors: TAPIA R. , TORRES G. , VALDERRAMA J. A. 
Published: May 2016

AbstractAuf Kieselgel‐absorbierte Salpetersäure wird zur Oxidation der Phenole (I) bzw. Phenolether (IV) herangezogen.
ChemInform Abstract: Cobalt Carbonyl‐Catalyzed Double Carbonylation of o‐Halogenated Benzoic Acids Under Photostimulation.
Authors: KASHIMURA T. , KUDO K. , MORI S. , SUGITA N. 
Published: May 2016

AbstractDie durch Dicobaltoctacarbonyl katalysierte photochemische Carbonylierung der o‐Halogenbenzoesäuren (I) oder der o‐Dihalogenbenzole (II), die zu Gemischen aus Benzoesäure (III), Phthalsäure (IV) und Phthalonsäure (V) führt, wird untersucht.
ChemInform Abstract: Reduction‐Alkylation with Organocopper(I) Reagents‐Alkyl Halides: Highly Regioselective α‐Alkylation of γ‐Acetoxy‐α,β‐enoates with Lithium Dibutylcuprate‐Alkyl Halides and Difference in the Reactivity of Electron‐Deficient Olefins with Organocopper(I)‐Lewis Acid Reagents.
Authors: IBUKA T. , AOYAGI T. , YAMAMOTO Y. 
Published: May 2016

AbstractDie im Titel genannten (Juli‐ungesättigten Ester (II), (VI) oder (VIII) liefern bei der Umsetzung mit Lithium‐dibutylcuprat (Ia) und nachfolgender Reaktion mit den Alkylhalogeniden (III) nahezu ausschließlich die ′ α‐alkylierten β,y‐ungesättigten Ester (IV), (VII) oder (IX).
ChemInform Abstract: 3‐Stannyl‐1‐silyloxycyclohex‐1‐enes: Synthetic Equivalents for Ketone α,β‐Dianions.
Authors: CHENARD B. L. 
Published: May 2016

AbstractAus den Trialkylstannyl‐cyclohexan‐silylenolethern (I) erhält man nach Metallierung und Umsetzung mit den aromatischen Aldehyden (II) die isomeren Addukte (III) bzw. (IV).
ChemInform Abstract: A Convenient Synthesis of the Important Retinoid Synthon Ethyl‐trans‐3‐ formyl‐ 2‐butenoate.
Authors: CURLEY R. W. JUN. , TICORAS C. J. 
Published: May 2016

AbstractTriethylphosphonoacetat (I) reagiert in Gegenwart von NaH mit dem α‐Ketoacetal (II) zu einem Gemisch der isomeren Olefine (III).
ChemInform Abstract: Highly Stereoselective Alkylation Reaction of Ester Enolates Generated from δ‐Hydroxy Carboxylic Acid Esters.
Authors: NARASAKA K. , UKAJI Y. 
Published: May 2016

AbstractDie aus den Hydroxyestern (I) durch Lithiierung entstehenden Dianionen werden stereoselektiv in die entsprechenden α‐alkylierten Ester (II) und (III) übergeführt.
ChemInform Abstract: Synthesis of Tricyclo(5.2.1.04,10)decane‐2,5,8‐trione from Deslongchamps′s Diketone.
Authors: ALMANSA C. , CARCELLER E. , MOYANO A. , SERRATOSA F. 
Published: May 2016

AbstractThe Synthesis of the title compound (XII), which starts from the Deslongchamps ′s diketone (I) is described.
ChemInform Abstract: Nucleophilic Inversions of a Chiral Alcohol Mediated by Zinc Salts.
Authors: ROLLIN P. 
Published: May 2016

Abstract(‐)‐Menthol(I) reagiert mit den Zinksalzen (II) in Gegenwart von Triphenylphosphin (III) und der Azoverbindung (IV) zu den anomeren Derivaten (V) in guter Ausbeute.
ChemInform Abstract: Synthesis of 1,4‐Bis(3‐oxo‐1‐a1kenyl)benzene and the Growth of Tetrahymena pyriformis.
Authors: NYATHI C. B. , BENHURA M. A. , NYANZUNDA T. 
Published: May 2016

AbstractDie Kondensation von Terephthaldialdehyd (I) mit den Methylalkylketonen (II) liefert die Bis‐enone(11I), die aufihre cytostatische Wirkung geprüft werden.
ChemInform Abstract: Synthesis of 2‐[[3‐Hydroxy‐5‐[3‐(4‐hydroxyphenyl)‐1‐oxo‐2‐propenyl]‐3‐ methyl‐ 2,4,6‐trioxocyclohex‐1‐yl]methylene]‐4‐hydroxy‐6‐[3‐(4‐hydroxyphenyl)‐1‐oxo‐2‐propenyl]‐4‐methyl‐1,3,5‐trioxocyclohexane, an Analog of Carthamin.
Authors: OBARA H. , NAMAI S. , MACHIDA Y. 
Published: May 2016

AbstractEine einfache Synthese des Carthamin‐Analogons (V), ausgehend vom Cyclohexantrionderivat (I), wird beschrieben.
ChemInform Abstract: Reactions of Anthrone with Nontransition and Transition Metal Amides and Thiolates.
Authors: TAMANO M. , KOKETSU J. 
Published: May 2016

AbstractAnthron (I) wird mit Amiden bzw. Thiolaten von Metallen der 4. und 5. Haupt‐ und Nebengruppen umgesetzt.
ChemInform Abstract: Regioselectivity and Stereoselectivity in Olefin Epoxidation by the NaOCl/Mn(Porphyrin)X System.
Authors: DE CARVALHO M.‐E. , MEUNIER B. 
Published: May 2016

AbstractWie in dem Formelschema skizziert, liefern die Terpene (I), (IV), (VI) und (VIII) sowie die Steroide (X) und (XII) mit NaOCl unter Katalyse durch Mn‐Porphyrin (II) die entsprechenden Epoxide (III), (V), (VII) und (IX) bzw. (XI) und (XIII).
ChemInform Abstract: Synthesis of Morphin Analogues with the Ring Structure of Tetrahydrodibenzofuran.
Authors: LABIDALLE S. , MIN Z. Y. , REYNET A. , THAL C. , MOSKOWITZ H. 
Published: May 2016

AbstractAus den Aryl‐cyclohexenolen (I) erhält man wie im Formelschema angegeben die Morphin‐Analoga (VII) bzw. (VIII), deren pharmakologische Wirkung untersucht werden soll.
ChemInform Abstract: A Convenient Synthesis of 3‐Alkylthiophenes.
Authors: PHAM VAN CHIEM PHAM VAN CHIEM , MARK H. B. JUN. , ZIMMER H. 
Published: May 2016

Abstract3‐Brom‐thiophen (I) wird mit den Grignard‐Verbindungen (II) in Gegenwart des Ni‐Katalysators (III) zu den 3‐substituierten Thiophenen (IV) umgesetzt.
ChemInform Abstract: Direct Acting, Highly Mutagenic, α‐Hydroxy N‐Nitrosamines from 4‐Chloroindoles.
Authors: BUECHI G. + , LEE G. C. M. , YANG D. , TANNENBAUM S. R. 
Published: May 2016

AbstractThe indole derivative (I), a constituent of fava beans, produces on nitrosation under simulated gastric conditions the oxime (II).
ChemInform Abstract: 1,3,5,7‐Tetrathia‐s‐indacene‐2,6‐dithiones as Potential Building Block for "Polyfulvalenes".
Authors: WOLF P. , MUELLEN K. + , PRZYBYLSKI M. 
Published: May 2016

AbstractDie 1,2,4,5‐Tetrakis‐(isopropylthio)‐benzole (I) liefern bei reduktiver Dealkylierung l,2,4,5‐Tetramercaptobenzole, die sich mit Schwefelkohlenstoff in die 1,2,4,5‐Benzo‐bis‐(1,3‐dithiol‐2‐thione) (II) überführen lassen.
ChemInform Abstract: Synthesis and X‐Ray Study of 3‐Phenyl‐5‐phenoxymethyl‐2‐oxazolidone.
Authors: GRIDUNOVA G. V. , FAINLEIB A. M. , SHKLOVER V. E. , STRUCHKOV YU. T. , FRENKEL' TS. M. , PANKRATOV V. A. 
Published: May 2016

AbstractPhenyl‐ isocyanat (I) reagiert mit Phenylglycidylether (II) zu der im Titel genannten Verbindung (III), deren Struktur durch Röntgendaten abgesichert wird.
ChemInform Abstract: Conversion of Tetrabenzobis(thiopyranylidene)ethene to a New Donor Containing a Pentalene Skeleton, Dibenzodithiaacenaphthacenaphthylene, and Their Charge Transfer Complexes.
Authors: NAKASUJI K. , TAKATOH K. , KOTANI T. , MURATA I. , YAMOCHI H. , SAITO G. , ENOKI T. , INOKUCHI H. 
Published: May 2016

AbstractDas Kumulen (I) sowie der daraus hergestellte Polycyclus (II) sind gute Elektronendonatoren und ergeben mit verschiedenen Akzeptoren wie dem Tetracyanochinodimethan (III) und DDQ (IV) l :lCharge‐Transfer‐Komplexe, deren physikalische Eigenschaften bestimmt werden.
ChemInform Abstract: Synthesis of New Multidentate Ligands. Carbonyl Addition Reactions of Di‐2‐pyridyl Ketone.
Authors: ORTEGO J. D. , MEYNIG J. 
Published: May 2016

AbstractUnder BF3 catalysis the di‐2‐pyridyl ketone (I) reacts with the diamino compounds (II) to form the Schiff bases (III).
ChemInform Abstract: Preparation of New Nitrogen‐Bridged Heterocycles. Part 13. Syntheses of Some Tricyclic and Tetracyclic Indolizine Derivatives with Antiallergic Reactivity.
Authors: KAKEHI A. , ITO S. , YOTSUYA T. 
Published: May 2016

AbstractDas aus dem Pyridinium‐Salz (I) und dem Vinylether (IIa) hergestellte Dihydropyridin (IIIa) cyclisiert beim Erhitzen mit Acetanhydrid zum Indolizin‐Derivat (IV).
ChemInform Abstract: Investigations into a By‐product from the Reaction of 2‐Amino‐5‐methylbenzoic Acid with Ammonium Thiocyanate.
Authors: KENNEWELL P. D. , SCROWSTON R. M. , SHENOUDA I. G. , TULLY W. R. , WESTWOOD R. 
Published: May 2016

AbstractThe by‐product in the reaction between the benzoic acid (III) and ammonium thiocyanate (V) is shown to be the quinazolone (IV) and not, as previously assumed, the dibenzodiazocine (II).
ChemInform Abstract: 2,4,4‐Tris(trifluoromethyl)‐1‐ethyl‐1,4‐dihydroquinazoline.
Authors: CHKANIKOV N. D. , VERSHININ V. L. , KOLOMIETS A. F. , FOKIN A. V. 
Published: May 2016

AbstractHexafluoracetontrifluoracetylimin (I) reagiert mit N‐Ethylanilin (II) zu der im Titel genannten Verbindung (III).
ChemInform Abstract: Solid Liquid Phase Transfer Catalysis: Alkylation of Theophylline.
Authors: BRAM G. , BENSAID Y. , COMBET‐FARNOUX C. , GALONS H. , MIOCQUE M. 
Published: May 2016

AbstractDas Theophyllin (I) läßt sich mit den Alkylhalogeniden (II) unter Phasen‐Transfer‐Katalyse zu den Alkyltheophyllinen (III) alkylieren.
ChemInform Abstract: Dimerization of Borirene to 1,4‐Diboracyclohexadiene. Structures and Stabilities of (CH)4(BH)2 Molecules.
Authors: BUDZELAAR P. H. M. , VAN DER KERK S. M. , KROGH‐JESPERSEN K. , VON RAGUE SCHLEYER P. 
Published: May 2016

AbstractPossible pathways for the dimerization of borirene (I) to (II) and to the more stable isomer (III) are studied by semiempirical and ab initio M0 theory.
ChemInform Abstract: Synthesis of β‐Substituted‐α‐[(Trimethylsilyl)oxy]acrylonitriles from α,β‐Unsaturated Aldehydes.
Authors: KREPSKI L. R. , JENSEN K. M. , HEILMANN S. M. , RASMUSSEN J. K. , LYNCH L. E. 
Published: May 2016

AbstractAus den Aldehyden (I) erhält man mit Trimethylsilylcyanid die Cyanhydrin‐ether (II); durch Einwirkung von DBU wird die Doppelbindung verlagert, es entstehen die Isomere (III).
ChemInform Abstract: 29Si NMR Observation of an Unprecedented Rearrangement in Tetraaryldisilenes.
Authors: YOKELSON H. B. , MAXKA J. , SIEGEL D. A. , WEST R. 
Published: May 2016

AbstractPure disilenes (II) and (IV) are generated photochemically by irradiation of their trisilane precursors and are examined by 295i NMR in benzene.
ChemInform Abstract: Formation of 1,2‐Disubstituted Cyclopropene‐3,3‐dicarboxylic Acid and Silylalkynylmalonic Acid Diesters in the Reaction of Dimethyldiazomalonate with Silylacetylenes in the Presence of CuSO4.
Authors: DOLGII I. E. , OKONNISHNIKOVA G. P. , IGNATENKO A. V. 
Published: May 2016

AbstractUnter Kupferkatalyse reagiert der Diazomalonester (II) mit den Alkinen (I) zu den Cyclopropendicarbonsäureestern (III) neben einer Reihe von Nebenprodukten wie (IV) und (V).
ChemInform Abstract: Organophosphorus Chemistry. Part 14. Friedel‐Crafts Preparation of Triarylphosphine Sulfides from Arenes with Phosphorus Pentasulfide.
Authors: OLAH G. A. , BERRIER A. , OHANNESIAN L. 
Published: May 2016

AbstractDie Aromaten (I) liefern mit P4S10 unter AlCl3‐Katalyse die Triarylphosphansul?de (II), die sich mit HMPA (III), Triethylphosphit (IV) oder katalytisch mit H2 zu den Triarylphosphanen (V) entschwefeln lassen.
ChemInform Abstract: Synthesis and Autoaddition Behaviour of Iminophosphanes of the Type C‐P = NC(Si).
Authors: NIECKE E. , LYSEK M. , SYMALLA E. 
Published: May 2016

AbstractAminochlorphosphane der allgemeinen Formel (I) werden in die instabilen Iminophosphane (II) umgewandelt, die zumeist in die Cyclodimeren (III) übergehen.
ChemInform Abstract: The Reaction of 1,4‐Diketones with Phenylphosphine.
Authors: VYSOTSKII V. I. , ROSTOBSKAYA M. F. 
Published: May 2016

AbstractDie 1,4‐Diketone (I) reagieren mit Phenylphosphin (II) zu den als Isomerengemische vorliegenden l‐Oxo‐ 1‐phenylphospholanen (III).
ChemInform Abstract: First Synthesis of Oxoselenonium Salts.
Authors: KOBAYASHI M. , MIHOYA T. 
Published: May 2016

AbstractDie bisher nicht bekannten Triaryl‐oxoselenonium‐Salze (II) werden erstmals durch Oxidation der Selenonium‐Salze (I) mit m‐Chlorperbenzoesäure in alkalischem Medium hergestellt.
ChemInform Abstract: Syntheses and Properties of Binaphtho[1,8‐de]‐1,3‐dithiin‐2‐ylidene and Its Selenium Analogue.
Authors: YUI K. , ASO Y. , OTSUBO T. , OGURA F. 
Published: May 2016

AbstractDie Synthesen des Tetrathiafulvalen‐Analogons (VII) und der entsprechenden Selenverbindung (X) werden, ausgehend vom 1,8‐Dichlornaphthalin (I), beschrieben.
ChemInform Abstract: Group IIB (12) Metal Alkyls: The Synthesis of Trifluorosilyl and Trifluoromethyl Alkyls of Cadmium and Zinc.
Authors: GUERRA M. A. , BIERSCHENK T. R. , LAGOW R. J. 
Published: May 2016

AbstractAlow temp. radio frequency glow discharge or plasma of hexafluoroethane and hexafluorodisilane is used to generate the trifluoromethyl and trifluorosilyl radicals, respectively.
ChemInform Abstract: Kinetics of Disproportionation of Tricarbonylbis(phosphine)iron(I) Cation Radicals Probed by Double Potential Step Chronocoulometry.
Authors: THERIEN M. J. , NI C.‐L. , ANSON F. C. , OSTERYOUNG J. G. , TROGLER W. C. 
Published: May 2016

AbstractCO Substitution in the radicals (I) proceeds solely by a second‐order process that is first order in both the metal radical and the entering pyridine nucleophile (II).
ChemInform Abstract: Hydroformylation of Vinylferrocene with Rhodium and Platinum Catalysts.
Authors: KOLLAR L. , FLORIS B. , PINO P. 
Published: May 2016

AbstractDie Hydroformylierung von Vinylferrocen (I) in Hexan mit Kohlenmonoxid/‐Wasserstoff (l :l) an Rhodiumkatalysatoren liefert in hoher Regioselektivität überwiegend 2‐Ferrocenylpropionaldehyd (II) neben 3‐Ferrocenylpropionaldehyd (III).
ChemInform Abstract: Transient Photoligation Behavior of Nickel Protoporphyrin Reconstituted Myoglobin and Hemoglobin.
Authors: FINDSEN E. W. , ALSTON K. , SHELNUTT J. A. , ONDRIAS M. R. 
Published: May 2016

AbstractIt is demonstrated that transient resonance Raman scattering can be used to probe the molecular details of the excited state photodynamics of the nickel protoporphyrin IX complex in a variety of local environments.
ChemInform Abstract: Generation, Spectroscopic Detection, and Chemical Reactivity of Fluorinated Vinylcopper Reagents.
Authors: BURTON D. J. , HANSEN S. W. 
Published: May 2016

AbstractThe preparation of the vinylcadmium or ‐zinc precursors (II) proceeds stereospecifically, and the metathesis with Cu(I) halogenides occurs with retention of configuration.
ChemInform Abstract: Hydride Transfer in the Oxidation of Formate Ion by [(bpy)2(py)Ru(O)]2+ .
Authors: ROECKER L. , MEYER T. J. 
Published: May 2016

AbstractThe ki‐ netics of Oxidation of formic acid/formate ion by the title Ru(IV)‐oxo‐complex to give CO2 have been studied as a function of pH and temp., and the kinetics of oxidation of HCO; by the analogous Ru(III)‐hydroxo‐complex have been studied at pH 7. Rate constants, activation parameters and kinetic isotope effects are given.
ChemInform Abstract: Cyclometallated Rhodium(III) Complexes with Diimine Ligands.
Authors: MAEDER U. + , JENNY T. , VON ZELEWSKY A. 
Published: May 2016

AbstractThe synthesis of the title complex (II) as a representative example of a series of related species containing two cyclometallating ligands and one diimine is described (yield given in g).
ChemInform Abstract: Formation of Fe‐Os, Fe‐Ru, and Fe‐Co Bimetallic Particles by Thermal Decomposition of Heteropolynuclear Clusters Supported on a Partially Dehydroxylated Magnesia.
Authors: CHOPLIN A. , HUANG L. , THEOLIER A. , GALLEZOT P. , BASSET J. M. , SIRIWARDANE U. , SHORE S. G. , MATHIEU R. 
Published: May 2016

AbstractWith H2FeM3(CO),3 (M: Os, Ru) and HFeCo3(CO),2 supported on a partially hydroxylated magnesia, it is possible to obtain, after H2 treatment at 400°C very small bimetallic particles, having the same bulk composition as that of the starting heteropolynuclear precursor Cluster.
ChemInform Abstract: (Trifluoromethyl)cyclopentadienide: A Powerful Electron‐Withdrawing Ligand for Transition‐Metal Complexes.
Authors: GASSMAN P. G. , WINTER C. H. 
Published: May 2016

AbstractStarting from (II), prepared as shown, the reactions with FeClz and derivatives of Ti, Mn, Rh, and Ir yield the complexes (III)‐(VI).
ChemInform Abstract: Photo‐Induced Cross‐Coupling Reaction between Porphyrin and Quinone.
Authors: MARUYAMA K. , FURUTA H. , OSUKA A. 
Published: May 2016

AbstractBei der photoinduzierten Umsetzung des phenolischen Porphyrinderivates (I) mit p‐Benzochinon wird das Hydrochinonderivat (II) erhalten, das weiter in das Benzochinonderivat (III) umgewandelt wird.
ChemInform Abstract: Terpenes and Terpene Derivatives. Part 19. Selective Epoxidation of rac‐β‐Curcumene.
Authors: WEYERSTAHL P. , MARSCHALL‐WEYERSTAHL H. , SCHOLZ S. 
Published: May 2016

AbstractEpoxidation of the title compound (I) with three electronically equivalent double bonds proceeds with low selectivity to yield a 4:1 25:1 mixture of the epoxides (II)‐(V) along with a variety of further products.
ChemInform Abstract: Peptide‐Bond Formation with C‐Terminal α,α‐Disubstituted α‐Amino Acids via Intermediate Oxazol‐5(4H)‐ones.
Authors: WIPF P. , HEIMGARTNER H. 
Published: May 2016

AbstractThe main problem in the formation of peptide bonds between dipeptides (I) containing a C‐terminal a,a‐disubstituted α‐amino acid and the aminobenzoate (II) [‐ (IV)] is the undesired epimerization of the nonterminal amino acid; this can be completely suppressed by CSA‐catalysis of the reaction using DCC as coupling reagent.
ChemInform Abstract: Synthesis of Nα‐(Tosylprolylglycyl)‐ and Na‐(Tosylglycylprolyl)‐4‐amidinophenylalanine Amides as Inhibitors of Thrombin.
Authors: VOIGT B. , WAGNER G. 
Published: May 2016

AbstractDie tosylierten Dipeptide (I) werden mit 4‐Cyanophenylalanin (II) zu den Tripeptiden (III) gekuppelt.
ChemInform Abstract: Synthesis of 3‐Deoxy‐3‐(hydroxyamino)furanose Acetals.
Authors: TRONCHET J. M. J. , HABASHI F. , FASEL J.‐P. , ZOSIMO‐LANDOLFO G. , BARBALAT‐REY F. , MORET G. 
Published: May 2016

AbstractThe reduction of the oximes (I) (obtained from the respective ketones) under acidic conditions constitutes a good synthetic pathway to the deoxy(hydroxyamino)sugar derivatives (IIa)‐(IIc); subsequent debenzoylation of (II) provides (IId).
ChemInform Abstract: Deoxynitro Sugars. Part 13. Preparation of Unprotected and Partially Protected 1‐Deoxy‐1‐nitro‐D‐aldoses and Some Representative X‐Ray Structure Analyses.
Authors: BEER D. , BIERI J. H. , MACHER I. , PREWO R. , VASELLA A. 
Published: May 2016

AbstractThe hydroxylamine (II) which equilibrates with the oxime (I) (to an extent depending on the solvent used) is converted to the nitrone (IV) from which the nitro compound (V) is obtained by ozonolysis.
ChemInform Abstract: Deoxynitro Sugars. Part 14. 1‐C‐Nitroglycals. Preparation and Reaction with Some Nitrogen Nucleophiles.
Authors: BAUMBERGER F. , BEER D. , CHRISTEN M. , PREWO R. , VASELLA A. 
Published: May 2016

AbstractThe acetylation of the nitro sugars (I) is accompanied by spontaneous β‐elimination to give the nitroglucals (IIa) or (IIb), while acetylation of nitro sugars, e.g. (IVa) and (VIa), gives only the acetates (IVb) or (VIb).
ChemInform Abstract: Deoxynitro Sugars. Part 15. Synthesis of N‐Acetylneuraminic Acid and N‐Acetyl‐ 4‐epineuraminic Acid.
Authors: BAUMBERGER F. , VASELLA A. 
Published: May 2016

AbstractMichael addition of the nitro sugars (I) to the ester (II) and subsequent carefully controlled hydrolytic removal of the N02 group give the tautomers (IIIa)+(IVa) or (IIIb) + (IVb), respectively.
ChemInform Abstract: Liquid Crystals from Carbohydrates. Part 2. Mesogenic 1‐C‐n‐Alkyl‐2,5‐anhydro‐1‐desoxy‐L‐iditoles.
Authors: KOELL P. + , OELTING M. 
Published: May 2016

AbstractDie im Titel genannten Kohlenhydrate (IV) werden aus dem Tosylat (I) über die Anhydroverbindung (II) durch Umsetzung mit den aus (III) und Butyllithium gebildeten Alkinyllithiumverbindungen, Acetalspaltung und nachfolgende katalytische Hydrierung erhalten.
ChemInform Abstract: Chemical Synthesis of Oligonucleotides Containing N6‐Methyladenine Residues in the GATC Site.
Authors: GUY A. , MOLKO D. , WAGREZ L. , TEOULE R. 
Published: May 2016

AbstractTo investigate by NMR the effects of adenine methylation, a set of oligodeoxynucleotides (I)‐(V) has been synthesized by phosphotriester or phosphoramidite procedures on silicagel supportes using the units (XIIIa) (for phosphotriester approach) and (XIIIb) (f or phosphoramidite approach).