bluuebunny/crossref_metadata_2025_split huggingface dataset:
ChemInform Abstract: Copper Catalysed O‐Phenylation of Phenols and Enols by Pentavalent Organobismuth Compounds.
Authors: BARTON D. H. R. , FINET J.‐P. , KHAMSI J. , PICHON C. 
Published: May 2016

AbstractTriphenyl bismuth Compounds react with the phenol (IIa) in the presence of Cu‐derivatives yielding the O‐phenyl ether (IIb).
ChemInform Abstract: Solution Structure of [Cr(III)(L)(O‐O)]n Complexes (L: Nitriloacetate, N,N‐β‐Alaninediacetate; O‐O: Malonate, Oxalate, Acetylacetonate, 2 H2O) and Characterization of ([Cr(nta)(OH)]2)2‐ by Deuteron NMR Spectroscopy.
Authors: KOINE N. , BIANCHINI R. J. , LEGG J. I. 
Published: May 2016

AbstractThe title Complexes (I) and the sym. and unsym. isomeric Complexes (II) are synthesized, chromatographically purified and isolated, and characterized by deuteron NMR, IR, and electronic absorption Spectroscopy.
ChemInform Abstract: Deprotonation of [HMo(CO)2(P‐P)2]BF4 Complexes: Hard Anions as Proton Carriers.
Authors: DARENSBOURG M. Y. , LUDVIG M. M. 
Published: May 2016

AbstractKinetic studies of the deprotonation of the metalloacids (I) by amine bases (Py, NEt3, 1,5‐diazabicyclo[5.4.0]undec‐5‐en) are reported.
ChemInform Abstract: Generation and Reactions of Chiral, Pyramidal, Transition‐Metal Lewis Acids of the Formula [(η5‐C5H5)Re(NO)(PPh3)]+ X‐ .
Authors: FERNANDEZ J. M. , GLADYSZ J. A. 
Published: May 2016

AbstractThe BF4)‐ and PF4)‐ salts (II) of a coordinatively unsaturated cation have been prepared.
ChemInform Abstract: Dinuclear Fe, Ru, and Co Complexes with C‐ and S‐Bonded Bridging C(SR)2 Carbene Ligands.
Authors: MATACHEK J. R. , ANGELICI R. J. 
Published: May 2016

AbstractThe carbenes (I), obtained by treatment of the corresponding dicarbonyl Compounds with MeCN under UV irradiation, reacted with (II) or (III) to yield the Complexes (IV); IR and 13C NMR studies indicate the unusual bridging C(SR)2 ligand.
ChemInform Abstract: Synthesis and Stereochemical Studies on Some Transition Metal Complexes of Tetrakis(imidazolyl)borate Anion.
Authors: ZAIDI S. A. A. , KHAN T. A. , SHAHEER S. A. , ZAIDI S. R. A. , SIDDIQI Z. A. 
Published: May 2016

Abstract1:2 or 1:3 molar reactions of corresponding metal chlorides with potassium tetrakis(imidazolyl)borate (II), prepared as shown, lead to the tetrakis(imidazolyl)borato complexes (III).
ChemInform Abstract: Oxygen Atom Transfer in the Oxidation of Triphenylphosphine by Molecular Oxygen Catalyzed by an Ru(III)‐ EDTA ‐ PPh3 Complex.
Authors: KHAN M. M. T. , SIDDIQUI M. R. H. , HUSSAIN A. , MOIZ M. A. 
Published: May 2016

AbstractThe oxidation of PPh3 to O = PPh3 in the presence of a Ru(III) ‐ EDTA complex, and molecular oxygen in dioxane/water proceeds through the formation of the intermediate complexes (I), (II) and the dimeric p‐peroxo compound (III).
ChemInform Abstract: N,N‐Dimethylacetamide Adducts of Mixed Iodo ‐ Ammine Complexes of Platinum(II) and Platinum(IV).
Authors: RAUDASCHL‐SIEBER G. , LIPPERT B. , BRITTEN J. F. , BEAUCHAMP A. L. 
Published: May 2016

AbstractAs a route to purify mixed iodo‐ammine Complexes of Pt, the N,N‐dimethylacetamide ( = DMA) solvates (I)‐(IV) are prepared by treatment of cis‐ or trans‐PtI2(NH3)2 with DMA or DMA and solid I2.
ChemInform Abstract: A New Phase‐Transfer Porphyrin Catalyst for the Olefin Epoxidation.
Authors: TAKAGI S. , MIYAMOTO T. K. , SASAKI Y. 
Published: May 2016

AbstractA new type of amphiphilic porphyrin is synthesized as the Mn(III) complex (VIb): Condensation of the components (II), (III) and (IV) yields a mixture of porphyrins (Ia)‐(Id) separable by chromatography.
ChemInform Abstract: Prenylation of Isopentenyl Derivatives with 2‐Methyl‐3‐buten‐2‐ol.
Authors: JULIA M. , SCHMITZ C. 
Published: May 2016

AbstractTreatment of the olefin (I) with (IV) and TFA gives (II) and the main product (III) arising from hydrolysis of the initial TFA adduct.
ChemInform Abstract: Synthesis and Evaluation of 4‐(Substituted thio)‐4‐androstene‐3,17‐dione Derivatives as Potential Aromatase Inhibitors.
Authors: ABUL‐HAJJ Y. J. 
Published: May 2016

AbstractDie durch Umsetzung von 4,5‐Epoxi‐androstendion (I) mit den Thiolen (II) hergestellten 4‐Thio‐androstendione (III) werden auf Inhibierung des Enzyms Estrogensynthetase untersucht.
ChemInform Abstract: Stereospecific Synthesis of 1,1‐Dialkylglycosides.
Authors: NICOLAOU K. C. , HWANG C.‐K. , DUGGAN M. E. 
Published: May 2016

AbstractThe tris(silylethers) (I) are converted into the 1‐allyl glycal (II), which is stereospecifically alkylated to yield the compound (III).
ChemInform Abstract: Formation of C‐Glycosides by Polarity Inversion at the Anomeric Centre.
Authors: HANESSIAN S. , MARTIN M. , DESAI R. C. 
Published: May 2016

AbstractThe glucal tris(silylether) (I) produces the novel 1‐tributyltin derivative (IIb) which is metallated and treated with electrophiles to yield 1‐C‐substituted products (III), (V) and (VII).
ChemInform Abstract: Carbocyclic Analogues of 5′‐Amino‐5′‐deoxy‐ and 3′‐Amino‐3′‐deoxythymidines.
Authors: SHEALY Y. F. , O'DELL C. A. , SHANNON W. M. , ARNETT G. 
Published: May 2016

AbstractDie nach dem im Schema angegebenen Verfahren hergestellten carbocyclischen Analoga (III) und (V) der im Titel genannten Desoxythymidine werden auf Wirksamkeit gegen das HSV‐1‐Virus geprüft.
ChemInform Abstract: Synthesis, Structure, and Antitumor and Antiviral Activities of a Series of 5‐Halouridine Cyclic 3′,5′‐Monophosphates.
Authors: BERES J. , BENTRUDE W. G. , KALMAN A. , PARKANYI L. , BALZARINI J. , DE CLERCQ E. 
Published: May 2016

AbstractDie Halogenierung der cyclischen Uridinmonophosphate (I) führt zu dem Einbau des Halogenatoms in die 5‐Position des Uridins.
ChemInform Abstract: Chemical Synthesis of 5′‐Phosphorylated Oligodeoxyribonucleotide on a Polymer Support.
Authors: TANAKA T. , YAMADA Y. , IKEHARA M. 
Published: May 2016

AbstractN‐Phenyl‐ethanolamine (I) is converted into the O‐trityl derivative (III) which reacts with the thymidine phosphate (VI) in the presence of the sulfochloride (VII) giving the derivatives (VIII) and (IX).
ChemInform Abstract: A Simple and Efficient Preparation of Penicillin V β‐Sulfoxide.
Authors: DAVIS M. , WU W.‐Y. 
Published: May 2016

AbstractOxidation of penicillin V (I) in a two‐phase system of CH2Cl2 and aqueous H2O2 gives (II) which crystallizes from CH2Cl2 in high purity.
ChemInform Abstract: Allylation of Grignard Reagents: Its Application for the Synthesis of (4E,7Z)‐4,7‐Tridecadienyl Acetate, a Sex Pheromone of Potato Tuberworm Moth.
Authors: YADAV J. S. , REDDY P. S. 
Published: May 2016

AbstractThe results of the reaction between the chlorobutene (II) and the Grignard compound (III) depend on the solvents.
ChemInform Abstract: The Role of Some Thiosemicarbazide Derivatives in the Corrosion Inhibition of Aluminium in Hydrochloric Acid.
Authors: FOUDA A. S. , MOUSSA M. N. , TAHA F. I. , ELNEANAA A. I. 
Published: May 2016

AbstractThe inhibition efficiency of five different thiosemi‐carbazides has been studied in 2 M HCl.
ChemInform Abstract: Synthesis, Separation, and NMR Characterisation of the fac‐ and mer‐Isomers of Tris(1‐methyl‐3‐(pyridin‐2‐yl)‐1,2,4‐triazole)ruthenium(II) Hexafluorophosphate.
Authors: HAGE R. , HAASNOOT J. G. , REEDIJK J. , VOS J. G. 
Published: May 2016

AbstractThe 1:4 molar reaction of RuCl3 ‐ xH2O and the ligand in the presence of L‐ascorbic acid in water/ethanol (1:1) refluxed for 6 h yields the title isomers (I) and (II), whose Separation can easily be achieved through crystallisation.
ChemInform Abstract: Water Photolysis with Copper(I) Chloride.
Authors: TENNAKONE K. , WICKRAMANAYAKE S. 
Published: May 2016

AbstractUV irradiation of a deaerated suspension of CuCl in dilute HCl efficiently generates H2 whereby CuCl oxidizes to CuCl2 . In the presence of sensitizers such as SrTiO3, TiO2, or WO3, CuCl2 can be photoreduced to CuCl, producing O2 (see scheme).
ChemInform Abstract: Thermoanalytical Investigation of the Ni(OH)2‐ NaOH System.
Authors: KADAR E. , SORS L. , KULCSAR S. , KANYA E. 
Published: May 2016

AbstractThe Ni(OH)2 ‐ NaOH mixture shows an endothermic DTA peak at 190°C which appears together with a weight loss.
ChemInform Abstract: The Electrochemical Response of Binary Mixtures of Hydrous Transition Metal Hydroxides Co‐Precipitated on Conducting Substrates with Reference to the Oxygen Evolution Reaction.
Authors: CORDOBA S. I. , CARBONIO R. E. , LOPEZ TEIJELO M. , MACAGNO V. A. 
Published: May 2016

AbstractThe colloidal electrodes formed by co‐precipitation of hydrous hydroxides on Pt, C, Au, or Ni can be classified into three groups according to the extent of the interaction between the two hydroxides.
ChemInform Abstract: Surface Acidity of Some Re2O7 ‐containing Metathesis Catalysts. An in situ Fourier Transform IR Study Using Pyridine Adsorption.
Authors: XU X. , MOL J. C. , BOELHOUWER C. 
Published: May 2016

AbstractThe metathesis activity of the catalysts studied (Re2O7/Al2O3 , V2O5 · Re2O7/Al2O3, MoO3 · Re2O7/Al2O3 , WO3 · Re2O7/Al2O3, Re2O7 / SiO2 · Al2O3) increases with increasing Brønsted acidity and is independent of the Lewis acidity of the catalysts.
ChemInform Abstract: Photoreduction and Reoxidation of Platinum Oxide and Palladium Oxide Surfaces.
Authors: FLEISCH T. H. , MAINS G. J. 
Published: May 2016

AbstractThe photoreduction of powdered samples of PtO and PdO (mercury lamp, 253.7 nm, vacuum, 20°C) has been followed by X‐ray photoelectron spectroscopy.
ChemInform Abstract: Demonstration of Heteroaromaticity via d‐Orbital Overlap in a Cyclic Conjugated Sulfone: NMR, Crystallography, and ab initio Calculation.
Authors: FRAENKEL G. , CHOW A. , GALLUCCI J. , RIZVI S. Q. A. , WONG S. C. , FINKELSTEIN H. 
Published: May 2016

AbstractThe extreme sensitivity of electronic energy of Cyclic n‐electron species to the number of n‐electrons associated with the ring is exploited in order to assess the possible existence and magnitude of sulfur n‐system overlap.
ChemInform Abstract: Structure‐NMR Correlations in Halo(ligand)bis(dioximato)cobalt(III) Complexes.
Authors: LOPEZ C. , ALVAREZ S. , SOLANS X. , FONT‐ALTABA M. 
Published: May 2016

AbstractAddition of the Ndonor ligands to solutions of the appropriate aquo complexes results in the Substitution of the axial H2O group by the organic ligand and formation of the complexes (Ia) and (Ib).
ChemInform Abstract: Anion Selectivities of Triorganyltin Acetates and Halides in Solvent Polymeric Membranes.
Authors: WUTHIER U. , PHAM HUNG‐VIET PHAM HUNG‐VIET , RUSTERHOLZ B. , SIMON W. 
Published: May 2016

AbstractA series of triorganyltin compounds (I) is studied in view of their anion selectivities (anions: SCN, I, Br, Cl, 0Ac, ClO4 , NO3 , HCO3, SO4, HPO4) exhibited in solvent polymeric membranes of bis(l‐butylpentyl)adipate in PVC.
ChemInform Abstract: Solution Chemistry of Ethane‐1,2‐dithiolate Complexes: Equilibria and Electron‐Transfer Reactions.
Authors: MUKHERJEE R. N. , RAO CH. P. , HOLM R. H. 
Published: May 2016

AbstractFollowing prior reports of synthesis and solid‐state structures, the spectral, structural, and equilibrium behavior and the redox properties of ‐ the ethane‐1,2‐dithiolate complexes (I)‐(V) are examined in aprotic solvents.
ChemInform Abstract: Fragmentation of Optically Active (1‐Phenylethyl)‐ and (1‐Naphthylethyl)ureas in Refluxing Alcohols: Easy Preparation of Optically Active Amines of High Optical Purity.
Authors: SCHOENENBERGER B. + , BROSSI A. 
Published: May 2016

AbstractThe racemic drug mecamylamine (I) can be efficiently resolved by reaction with the optically active isocyanate (IVa) followed by refluxing the separated products (IIa) or (IIb) with ethanol [→ (IIIa), (IIIb)].
ChemInform Abstract: Oxidative‐Addition/ Addition Reactions of F‐tert‐Butyl Hypochlorite with Perfluoromono‐ or Perfluorodiiodoalkanes, Pentafluoroiodobenzene, and Hexafluorobenzene.
Authors: CANICH J. A. M. , LERCHEN M. E. , GARD G. L. , SHREEVE J. M. 
Published: May 2016

AbstractThe reactions of the title reagent (I) with the compounds (I), (IV), (VI), (VIII), or (XI) yield the products (III), (V), (VII), (IX) or (XII).
ChemInform Abstract: Cycloaddition Routes to Azaanthraquinone Derivatives. Part 1. Use of Azadienophiles.
Authors: POTTS K. T. , BHATTACHARJEE D. , WALSH E. B. 
Published: May 2016

AbstractDie Azanaphthochinone (I), deren Herstellung beschrieben wird, reagieren mit den Dienen (II) bzw. (VI) zu den Diels‐Alder‐Addukten (III) bzw. (VIIa), die in die Azaanthrachinone (V) bzw. (VIIIa) übergeführt werden.
ChemInform Abstract: Nitriles in Heterocyclic Synthesis: New Approaches for Synthesis of Pyrazoles, Isoxazoles and Pyrimidines.
Authors: IBRAHIM N. S. , HAFEZ E. A. A. , MOHAREB R. M. 
Published: May 2016

AbstractAus dem Hydrazon (II) werden nach den im Schema angeführten Methoden Vertreter wie (V), (X) oder (XV) der im Titel genannten Heterocyclen hergestellt.
ChemInform Abstract: Photochemical Disproportionation of Mn2(CO)10. Nineteen‐Electron Intermediates and Ligand and Intensity Dependence.
Authors: STIEGMAN A. E. , GOLDMAN A. S. , PHILBIN C. E. , TYLER D. R. 
Published: May 2016

AbstractThe photochemical disproportionation of (I) proceeds first to (II) and (III).
ChemInform Abstract: Direct Observation of Acetophenone Enol Formed by Photohydration of Phenylacetylene.
Authors: CHIANG Y. , KRESGE A. J. , CAPPONI M. , WIRZ J. 
Published: May 2016

AbstractThe rapid protonation of the photoexcited acetylene (I) followed by hydration of the vinyl cation formed (II) allows the identification of the transient title species (III) by flash photolysis prior to its rapid ketonization to (IV).
ChemInform Abstract: Applications of the Thermal Ene Reaction of Aldehyde t‐Butyl‐ and Phenylhydrazones.
Authors: BALDWIN J. E. , ADLINGTON R. M. , JAIN A. U. , KOLHE J. N. , PERRY M. W. D. 
Published: May 2016

AbstractEne reaction of the hydrazones (I) with (IV) yields the azo compounds (II), ′ affording ketones (III) on tautomerization and hydrolysis.
ChemInform Abstract: Synthesis and Neuroleptic Activity Evaluation of Some trans‐(2‐Aminomethyl)cyclohexyl Aryl Ketones.
Authors: CAAMANO O. , FERNANDEZ F. , EIRIN A. , URIARTE E. , CALLEJA J. M. , GATO A. 
Published: May 2016

AbstractThe title compounds (V) are synthesized as described and tested for neuroleptic activity.
ChemInform Abstract: Reactions of 1,4‐Bis(bromomagnesio)butane and 1,5‐Bis(bromomagnesio)pentane with Bulky 5‐Isoxazolones.
Authors: CANONNE P. , THIBEAULT D. , FYTAS G. 
Published: May 2016

AbstractThe reaction of the isoxazolones (I) with the Grignard reagent (II) yields cyclopentane derivatives which are isolated as syn/anti mixtures.
ChemInform Abstract: A New Synthesis Route to 1,1,1‐Trihalopolyfluoroalkanes.
Authors: EAPEN K. C. , EISENTRAUT K. J. , RYAN M. T. , TAMBORSKI C. 
Published: May 2016

AbstractDurch die Reaktion von Aluminiumtrichlorid und ‐bromid mit den Perfluoralkyliodiden (I), ‐bromiden (IV) und ‐diiodiden (VII) sowie von Perfluoralkyletheriodiden wie (X) erhält man die im Formelschema angegebenen Produkte.
ChemInform Abstract: Di‐tert‐butyl Nitroxyl Radical Induced Homolysis of Polyfluorodiacyl Peroxides.
Authors: ZHAO C.‐X. , CHEN G.‐F. , WANG X.‐S. , JIANG X.‐K. 
Published: May 2016

AbstractIn Gegenwart von Di‐tert.‐butylnitroxid (II) (DTBNO) werden aus den Polyfluordiacylperoxiden (I) die tert.‐Butyl‐polyfluoralkylnitroxide (III) gebildet.
ChemInform Abstract: Dissymmetrisation of Glyoxal. Part 1. Synthesis and Reactivity of 1‐Acetoxy‐ 1,2,2‐triethoxy‐ethane.
Authors: STAMBOULI A. , CHASTRETTE F. , AMOUROUX R. , CHASTRETTE M. , MATTIODA G. , BLANC A. 
Published: May 2016

AbstractThe glyoxal‐bis‐acetals (I) react with acetanhydride yielding the mono‐ acetoxy derivatives (II) and ‐ as by‐products ‐ the disubstituted products (III).
ChemInform Abstract: Reactivity of Perfluorinated Sulfonic Acid and Pyrosulfonic Acid Esters RfSO3Rf and RfSO3SO3Rf. Heterolysis of the S‐O Bond.
Authors: OUDRHIRI‐HASSANI M. , BRUNEL D. , GERMAIN A. 
Published: May 2016

AbstractThe decomposition of the perfluoroalkyl perfluoroalkanesulfonates (I) at 190°C and of the perfluoroalkyl perfluoroalkanepyrosulfonates (II) at 45°C in CF3SO3H and C2F5SO3H are studied.
ChemInform Abstract: General Approach to the Synthesis of Polyquinanes. Preparation of trans,trans‐ 4,8‐Diacetoxy‐tetracyclo[9.3.0.01,5.07,11]tetradeca‐6‐one via the Aldol Approach.
Authors: VENKATACHALAM M. , WEHRLI S. , KUBIAK G. , COOK J. M. , WEISS U. 
Published: May 2016

AbstractThe tricyclic diketone (I) is transformed into the acetal (III) or the thioacetal (IX).
ChemInform Abstract: Crystal Structure and Synthesis of a Quadricyclane Derivative.
Authors: MATIJASIC I. , UGOZZOLI F. , BOCELLI G. , VANCIK H. , SUNKO D. E. 
Published: May 2016

AbstractPhotolysis of the hexachloro‐norbornadiene derivative (1) yields the quadricyclane (II); its structure is determined by X‐ray analysis.
ChemInform Abstract: The Thermal Rearrangement of endo‐7‐Methyl‐exo‐7‐vinylbicyclo[3.2.0]hept‐2‐ene.
Authors: FORMAN M. A. , LEBER P. A. 
Published: May 2016

AbstractThermal rearrangement of the bicycloheptene derivative (I) yields the olefins (II), (V) and (VI).
ChemInform Abstract: In vitro Activity of 2‐Cycloalkyl‐3‐hydroxy‐1,4‐naphthoquinones Against Theileria, Eimeria and Plasmodia Species.
Authors: HUDSON A. T. , PETHER M. J. , RANDALL A. W. , FRY M. , LATTER V. S. , MCHARDY N. 
Published: May 2016

AbstractThe naphthoquinone derivatives (III) are synthesized as shown in the scheme.
ChemInform Abstract: Synthesis of Indenes from Phenylpropanones Using Alumina Catalyst.
Authors: JAYAMANI M. , PANT N. , ANANTHAN S. , NARAYANAN K. , PILLAI C. N. 
Published: May 2016

AbstractIndenes of type (V) can be prepared by passing a 2‐propanone such as (I) over alumina at temp. of about 400°C. Of the likely intermediates (II)‐(IV), compounds (II) and (IV) can be identified as constituents of the product mixture.
ChemInform Abstract: Catalytic Decomposition of Branched α′‐Phenoxy‐α‐diazo Ketones Affording 2,8H‐ Cyclohepta[b]furan‐3‐one and 2H‐Cyclohepta[b]furan‐3a(3aH)methyl‐3‐one.
Authors: PUSINO A. , SABA A. , ROSNATI V. 
Published: May 2016

AbstractThe title reaction converts (I) to mixtures of (II) and (III), the methyl derivatives (IVa)/(IVb) to (V) and (VI), and the analogues (IVc)/(IVd) to the single products (V).
ChemInform Abstract: Reactions of Organic Anions. Part 132. A Facile Synthesis of 3‐Sulfonyl Substituted Indole Derivatives.
Authors: WOJCIECHOWSKI K. , MAKOSZA M. 
Published: May 2016

AbstractThe nitroarenes (I) which are easily obtained by vicarious nucleophilic Substitution of hydrogen, are reduced with tin in hydrochloric acid to yield the amines (II) which are converted into the imidates (III) with orthoacid esters.
ChemInform Abstract: Phenylureas Derived from Indazole: Research on Anthelminthic Activity and the Effect of Substituents.
Authors: BARBET O. , MINJAT M. , PETAVY A.‐F. , PARIS J. 
Published: May 2016

AbstractSince the compound (Ia) shows a certain activity against Syphacia obvelata, the analogues (Ib)‐(V) are synthesized according to known literature procedures (yields: 52‐97%).
ChemInform Abstract: Effects of Hetero Atom Substituents in the Decomposition of Pyrazolines: Abnormal Behavior of Methoxy Group Compared with Arylthio or Arylseleno Group.
Authors: HAMAGUCHI M. , FURUSAWA T. , NAGAI T. 
Published: May 2016

AbstractDie durch Addition der Diazoalkane (II) an den Methoxymethylenmalonester (I) zugänglichen Pyrazoline (IIIa)‐(IIIc) und (IIIe) liefern bei der Thermolyse infolge Wasserstoff‐Wanderung bzw. Migration der Methoxygruppe die Methylenmalonester (IV) bzw. (V).
ChemInform Abstract: New Imidazole Antifungal Agents Derived from Benzo[b]thiophene.
Authors: RAGA M. , PALACIN C. , CASTELLO J. MA. , ORTIZ J. A. , CUBERES MA. R. , MORENO‐MANAS M. 
Published: May 2016

AbstractThe compounds (IIIa) and (VIIa) are synthesized as described in the scheme.
ChemInform Abstract: Imidazol‐4(5)‐carboxylic Acid Amides: Effects on Teaching and Memory.
Authors: PIOTROVSKII L. B. , DUMPIS M. A. , SHABANOV P. D. 
Published: May 2016

AbstractImidazol‐4,5‐dicarbonsäuredimethylester (I) reagiert mit Anilin vorzugsweise zu dem Anilid der Monocarbonsäure (II) neben wenig Dicarbonsäuredianilid (III).
ChemInform Abstract: Synthesis of 1,3‐Disubstituted Diazolidines.
Authors: LAMBERT J. B. , HUSELAND D. E. , WANG G. 
Published: May 2016

AbstractReduction of the N,N′‐disubstituted oxamides (III) which are easily Qbtained from diethyl oxalate (I), leads to the 1,2‐diaminoethanes (IV) which are cyclized with formaldehyde to yield the imidazolidines (V).
ChemInform Abstract: Protection of Imidazoles as Their β‐Trimethylsilylethoxymethyl (SEM) Derivatives.
Authors: LIPSHUTZ B. H. , VACCARO W. , HUFF B. 
Published: May 2016

AbstractThe N‐substituted imidazoles (III) react with butyl Iithium and the electrophiles (IV) yielding the products (V), which are deblocked to give the disubstituted imidazoles (VI).
ChemInform Abstract: Heterocycles. Part 4. Synthesis of 2,2‐Dimethyl‐2H‐pyrano[2,3‐a]carbazoles.
Authors: SOWMITHRAN D. , PRASAD K. J. R. 
Published: May 2016

AbstractDie im Titel genannten Verbindungen (V) werden nach der im Formelschema angegebenen Reaktionssequenz aus den 8‐Hydroxycarbazolen (I) und Dimethylacrylsäure (II) hergestellt.
ChemInform Abstract: Research on Biologically Interesting Nitro Derivatives. Part 40. Novel Potent Genotoxic Reagents: Nitro Derivatives of Oxophenalene.
Authors: ROYER R. , BUISSON J.‐P. , VLEMINCKX C. , MOENS W. 
Published: May 2016

AbstractThe compounds (IV) (R7780) and (VIII) (R7779) are synthesized starting from the corresponding l‐methoxy naphthalenes.
ChemInform Abstract: Diels‐Alder Reaction of 3‐(2‐Pyridylsulfinybacrylates. The Enhancement of the Reactivity and the Diastereoselectivity by the Introduction of Electron‐Withdrawing Substituents on the Pyridine Ring.
Authors: TAKAYAMA H. , HAYASHI K. , TAKEUCHI Y. , KOIZUMI T. 
Published: May 2016

AbstractDie Diels‐Alder‐ Reaktion der Pyridylsulfinylacrylate (IV) mit Furan zu den endo‐ (V) und exo‐Addukten (VI) verläuft mit hoher Diastereoselektivität, wenn der Pyridin‐Ring in Position 3 elektronenziehende Reste wie die Trifluormethyl‐ oder Nitro‐Gruppe trägt.
ChemInform Abstract: Synthesis of 1‐Hydroxyphenyl Substituted 6‐Alkoxycarbonyl (and 6‐Carbamoyl)‐2‐pyridone‐4,5‐dicarboxylic Acid Dimethyl Esters.
Authors: KAWAHARA N. , NAKAJIMA T. , ITOH T. , OGURA H. 
Published: May 2016

AbstractThe benzoxazine derivatives (IV), prepared from the o‐aminophenols (I) and dimethyl acetylenedicarboxylate (II) via (III), react with the alcohols (VI) or pyrrolidine (VII) to yield the pyridone derivatives (V) and (VIII) respectively.
ChemInform Abstract: Mild Reductive Cleavage of α‐Aminoethers.
Authors: LEE D. U. , WIEGREBE W. 
Published: May 2016

AbstractDie quaternären Tetrahydroisochinoline (III) reagieren zu den Phenethylamin‐Derivaten (IV). Fehlen die aktivierenden Methoxygruppen oder ist das N‐Atom in einen zweiten Ring einbezogen wie in (VI), gelingt die Ringöffnungsreaktion nicht.
ChemInform Abstract: Regiospecific Cyclization of 3‐Carbomethoxyindole‐1‐propanoic Acid onto 7‐Position of the Indole Nucleus.
Authors: NAKATSUKA S. , ASANO O. , GOTO T. 
Published: May 2016

AbstractDie im Titel genannte Carbonsäure (Ic) cyclisiert beim Erwärmen mit Polyphosphorsäure regiospezifisch zu dem Pyrrolochinolinon (IV) und nicht zu dem isomeren Ketoester (III).
ChemInform Abstract: A Masked [π8 + π2] Cycloaddition Reaction Involving the 1,3,4,6‐Tetraazapentalene Ring System.
Authors: PEREIRA D. E. , LEONARD N. J. 
Published: May 2016

AbstractThe tetraazapentalenes (Ia) and (Ib) react with dimethyl acetylenedicarboxylate (II) yielding the adducts (III).
ChemInform Abstract: Novel Synthesis of Pyridopyrimidine Diones.
Authors: FAHMY A. F. , YOUSSEF M. S. K. , HALIM M. S. A. , HASSAN M. A. , SAUER J. 
Published: May 2016

AbstractDurch Reaktion des N‐Phenylsulfonyloxyimids (II) mit Ammoniak, Hydrazin, Hydroxylamin, Anilinen und Alkoholen werden die im Schema angegebenen Produkte (III)‐(IX) erhalten.