bluuebunny/crossref_metadata_2025_split huggingface dataset:
ChemInform Abstract: [(Trimethylsilyl)methyllcopper(I) Species: Versatile Reagents to Prepare Functionally Substituted Allylic Silanes.
Authors: KLEIJN H. , VERMEER P. 
Published: May 2016

AbstractDie unter milden Bedingungen ablaufenden Substitutionsreaktionen (SN2′) des Kupfer(I)‐organyls (I) mit den Alkinen (III) und (V) sowie den Allenen (VII), (IX) und (XI) in THF führen in hohen Ausbeuten zu den Silanen (IV), (VI), (VIII), (X) und (XII).
ChemInform Abstract: Direct Polysilylation: a Rapid Pathway to Model Compounds with Strong Steric Hindrance.
Authors: LAGUERRE M. , LEGER J. M. , N'GABE D. Y. , BIRAN C. , DUNOGUES J. 
Published: May 2016

AbstractReaction of the benzenes (I) with an excess of the Chloride (II) yields the silicon compounds (IIIa) (X‐ray analysis: space group P21/n; Z=4) and (IIIb) (two steric isomers).
ChemInform Abstract: X‐Ray Crystallographic Characterization of a Stepwise, Metal‐Assisted Oxidative Decarboxylation: Vanadium Complexes of Ethylenebis[(o‐hydroxyphenyl)glycine] and Derivatives.
Authors: RILEY P. E. , PECORARO V. L. , CARRANO C. J. , BONADIES J. A. , RAYMOND K. N. 
Published: May 2016

AbstractThe three vanadyl complexes (I)‐(III) are associated with a novel stepwise oxidative decarboxylation of (I) to (III).
ChemInform Abstract: Chelated Cobalt Bis(ethylenediamine) Amino Acid Ester Complexes: Racemization During Peptide Synthesis.
Authors: MENSI N. , ISIED S. S. 
Published: May 2016

AbstractThe complex [(en)2Co(l‐Phe ‐ OMe)]3+ (I) reacts with the amino acid ester hydrochlorides l‐Phe ‐ O ‐ R‐ HCl (II) to give the dipeptide complexes cis‐[(en)2Co(l‐Phe ‐1‐Phe ‐ OR)]3+ (III).
ChemInform Abstract: A Binuclear Copper(II) Complex of the Schiff Base Derived from 1,1′‐(2,6‐Pyridyl)‐bis‐1,3‐butanedione and 3‐Amino‐1‐propanol.
Authors: BAILEY N. A. , FENTON D. E. , TATE J. R. 
Published: May 2016

AbstractThe title Complex (I) is dimeric and crystallizes in the space group PT with Z=4.
ChemInform Abstract: Crystal Structure of the Trichlorotris(1,3‐dimethylimidazoline‐2‐thione)platinum(IV) Cation: the Product of a Novel Oxidation‐Addition Reaction.
Authors: BUTLER L. M. , CREIGHTON J. R. , RAPER E. S. , TOMLINSON W. R. 
Published: May 2016

AbstractThe title complex (I) (space group PI, Z=2) is a by‐product of the reaction between the tetrachloroplatinate?l) ion and the imidazoline derivative in molar hydrochloric acid yielding the complex (II).
ChemInform Abstract: Synthesis of Novel Steroids Belonging to the 15‐ and 17‐Thiaestrone and the 15‐ and 17‐Thiaandrostane Types.
Authors: TOLSTIKOV G. A. , SHUL'TS E. E. , STRUCHKOV YU. T. , YUFIT D. S. , LINDEMAN S. V. 
Published: May 2016

AbstractThe diene reaction between the l‐vinyldihydronapht halene (I) and the thiolenones (IIa)‐(IIc) yields the isomeric thiasteroids (III) and (IV), with the exception of the thiolenone (IIb), which yields the isomer (I Ilb) only.
ChemInform Abstract: Synthesis of Methyl 2,3,4‐Tri‐O‐benzyl‐D‐ and ‐L‐glycero‐α‐D‐glucoheptopyranosides.
Authors: JAROSZ S. 
Published: May 2016

AbstractThe title compounds (IIIa) and (IIIb) have been synthesized starting from the known pyranosides (Ia) or (Ib).
ChemInform Abstract: Unsymmetrically Disubstituted β‐Cyclodextrins. 6A,6X‐Dideoxy‐6A‐azido‐ 6X‐[(mesitylsulfonyl)oxy] Derivatives.
Authors: FUJITA K. , YAMAMURA H. , IMOTO T. 
Published: May 2016

AbstractReaktionen an β‐Cyclodextrinen zu funktionellen Derivaten, speziell mit Tosyloxy‐, Mesyloxy‐ und Azid‐Strukturen werden diskutiert.
ChemInform Abstract: Diene Synthesis Assisted by Thebaine and 2‐Thiolen‐4‐on‐1,1‐dioxides as a Route to Sulphur‐Containing Alkaloids of the Morphinane Series.
Authors: TOLSTIKOV G. A. , SHULTZ E. E. , SPIRIKHIN L. V. 
Published: May 2016

AbstractReaction between thebaine (I) and the dioxide (II) in boiling benzene yields the compounds (III) and (IV).
ChemInform Abstract: Synthetic Applications of 2‐Cyanopiperidines. Part 2. Model Studies in the Synthesis of the Indole Alkaloid Vinoxine.
Authors: BENNASAR M.‐L. , BOSCH J. 
Published: May 2016

AbstractThe reaction sequence shown in the scheme renders possible the synthesis of the required N‐heterocycles (VIII) with an ethylidene side‐chain.
ChemInform Abstract: Self‐complementary Tetradeoxyribonucleoside Triphosphates. Convenient Chemical Preparation and Spectroscopic Studies in Solution.
Authors: MATSUZAKI J. , HOTODA H. , SEKINE M. , HATA T. , HIGUCHI S. , NISHIMURA Y. , TSUBOI M. 
Published: May 2016

AbstractEight kinds of self ‐ comple‐ mentary tetradeoxyribonucleoside triphosphates (VIII)‐(XV) are prepared b‐y a simplified method which allows omission of the purification of synthetic intermediates and provides the tetramers very rapidly and conveniently: The protected nucleosides (Ia), (Id) are converted into the derivatives (Ib), (Ie) or (Ic), (If); the more advantageously protected guanosine derivatives (IVa), (IVb) are prepared from (Ie), (If).
ChemInform Abstract: Stereocontrolled Synthesis of a Polyether Fragment.
Authors: BARTLETT P. A. , HOLM K. H. , MORIMOTO A. 
Published: May 2016

AbstractAusgehend von der Carbo‐nsäure (I) wird gemäß der im Schema angegebenen Synt?hesesequenz das Tetrahydro‐ pyranlacton (XVb) hergestellt.
ChemInform Abstract: Pseudomonic Acid C from L‐Lyxose.
Authors: KECK G. E. , KACHENSKY D. F. , ENHOLM E. J. 
Published: May 2016

AbstractDie Synthese von Pseudomonsäure C (II) aus L‐Lyxose (I) wird in einer ausführlichen Untersuchung beschrieben.
ChemInform Abstract: Synthetic Studies Towards the Acyltetronic Acid Ionophore M 139603.
Authors: DOHERTY A. M. , LEY S. V. 
Published: May 2016

AbstractAus dem Hydroxy‐carbonsäureester (I) erhält man über die Zwischenstufe (II) die isomeren Dichlor‐cyclobutanone (III) und (IV), die zu den Lactonen (V) und (VI) oxidiert werden.
ChemInform Abstract: BaAl4 Derivative Structures of ARu2X2 (A: Ca, Sr, Ba, Eu; X: P, As) (I) and of APt2P2‐x (A: Ca, Eu) (II).
Authors: WENSKI G. , MEWIS A. 
Published: May 2016

AbstractThe title compounds are prepared by heating (z 1000°C) mixtures of the elements in corundum crucibles in Ar atmosphere.
ChemInform Abstract: Mixed Crystals from A4B3 Molecules (A: P, As; B: S, Se).
Authors: BLACHNIK R. , WEBER TH. , WICKEL U. 
Published: May 2016

AbstractIn the quaternary system P483 ‐ P4Se3 ‐ A5483 ‐ As4Se3 five regions of solid solubility with different crystal structures are detected at 20°C using thermal and X‐ray methods.
ChemInform Abstract: High‐Resolution Solid‐State 31P NMR at 109.3 MHz of the Penta‐Sodium Catena‐Triphosphates Na5P3O10‐I, Na5P3O10‐II, and Na5P3O10·6 H2O.
Authors: HAUBENREISSER U. , SCHELER G. , GRIMMER A.‐R. 
Published: May 2016

AbstractOnly small differences in the geometries of the title triphosphates cause significant different NMR parameters of the P04 units (isotropic chemical shift, shielding anisotropy, and asymmetry parameter).
ChemInform Abstract: Dioxygenyl Salts Containing Doubly Charged Mononuclear Counterions.
Authors: BOUGON R. A. , CHRISTE K. O. , WILSON W. E. 
Published: May 2016

AbstractDurch Umsetzung des Antimonates (I) mit den Metallfluoriden (II) werden als erste Vertreter von Dioxygenylsalzen mit zweifach geladenen einkernigen Gegenionen die Dioxygenylsalze (III) gebildet.
ChemInform Abstract: Characterization of Lithium Vanadates (V/Li ⩽ 1) Prepared by an Aqueous Process.
Authors: TOUBOUL M. , POPOT A. 
Published: May 2016

AbstractIn the H2O ‐ LizO ‐ V2O5 system the vanadates (I) and (II) exist in equilibrium at 56°C : the solubility of (I) is very low whereas (II) has a very high solubility in the limit of congruence.
ChemInform Abstract: Acidic Properties of Compounds with C = C or N = N Electrophilic Double Bonds.
Authors: GHIO C. , TOMASI J. , WEILL J. , SILLION B. 
Published: May 2016

AbstractThe investigation is based on the analysis of the interaction energy of organic compounds, such as (I)‐(IV) e.g., with a selected Lewis basis, obtained via ab initio SCF computations.
ChemInform Abstract: Preparation of Optically Active Alcohols from 1,3‐Dioxan‐4‐ones.
Authors: SEEBACH D. , IMWINKELRIED R. , STUCKY G. 
Published: May 2016

AbstractDurch Reaktion der Dioxane (I) mit den Si‐Reagentien (II) und (III) unter der angegebenen Bedingung erhält man die Carbonsäuren (IV) (Diastereoselektivität: 87‐99%).
ChemInform Abstract: Metalated Nitrogen Derivatives of Carbonic Acid in Organic Synthesis. Part 31. α‐Deprotonation of an α‐Chiral 2‐Alkenylcarbamate with Retention and Lithium‐Titanium Exchange with Inversion ‐ the Homoaldol Reaction with 1,3‐Chirality Transfer.
Authors: HOPPE D. , KRAEMER T. + 
Published: May 2016

AbstractDeprotonation of the carbamate (Ib) [from (Ia)] and trapping of the intermediate Li species (II) with the aldehyde (IVa) yield the Z‐anti (IIIa) and the Z‐ syn (IIIb) adducts.
ChemInform Abstract: Reactivity of Cyclopentanone Enamines Towards Acyl Aryldiazenes.
Authors: BENEDETTI F. , FORCHIASSIN M. , RUSSO C. , RISALITI A. 
Published: May 2016

AbstractThe reaction of enamines (I) with diazenes (II) leads to the formation of either (III), (IV) or (V) as set out in the scheme; the hydrolysis of these products generally yields the cyclopentanones (VI).
ChemInform Abstract: Thermal Addition of Alkanes to Alkenes. Part 2. Addition of Cyclohexane to Acrylate in a Free Radical Chain Reaction.
Authors: HARTMANNS J. , KLENKE K. , METZGER J. O. 
Published: May 2016

AbstractDie Untersuchung der Kinetik der Titelreaktion, bei der oberhalb 200°C 3‐Cyclohexylpropionsäure‐phenylester entsteht, zeigt, daß diese Reaktion als Radikalkettenreaktion verläuft.
ChemInform Abstract: Thermal Addition of Alkanes to Alkenes. Part 4. Regioselectivity in the Addition of Cyclohexane to 1,2‐Disubstituted Alkenes.
Authors: METZGER J. O. , KLENKE K. , HARTMANNS J. , EISERMANN D. 
Published: May 2016

AbstractDie Regioselektivität der Addition von Cyclohexan (I) an die Alkene (II) wird bei 300‐450 °Cgemessen.
ChemInform Abstract: Laticyclic 1,5‐Conjugation Between Parallel, Neighboring Azo Groups and Phenyl Groups.
Authors: BECK K. , HUENIG S. + 
Published: May 2016

AbstractUnsensitized irradiation of the compounds (Ia) and (Ib) yields the products (IIa) or (IIb) (this is the first [2 + 6] photocycloaddition of an azo group and a benzene ring), whereas the compound (III) is unreactive under the same conditions.
ChemInform Abstract: Reactions of 4,5‐Unsaturated 3‐Oxoalkanenitriles with Michael Acceptors.
Authors: HEINISCH G. , HOLZER W. , NAWWAR G. A. M. 
Published: May 2016

AbstractThe pyran (III) can be obtained by reaction of the ketone (I) with dinitrile (II) as well as by reaction of ketone (V) with dinitrile (IV).
ChemInform Abstract: 1‐Aminohypoxanthine and Analogues.
Authors: SCHEINER P. , ARWIN S. , ELIACIN M. , TU J. 
Published: May 2016

AbstractDie o‐Amino‐hydrazide (II), (Vb), (VII), (IX), (XI) oder (XIV) cyclisieren in literaturbekannter Weise mit den Orthocarbon‐ säureestern (I) teils zu den im Titel genannten Verbindungen (III), (VI), (VIII), (X) oder (XV), teils zu den Oxadiazolen (XII) bzw. (XVII).
ChemInform Abstract: Synthesis of Optically Active γ‐Hydroxy α,β‐Unsaturated Acid Derivatives from Enantiomerically Pure Sulphoxides.
Authors: ANNUNZIATA R. , CINQUINI M. , COZZI F. , RAIMONDI L. , RESTELLI A. 
Published: May 2016

AbstractTandem Knoevenagel‐type condensation of the sulfoxides (Ia) [(Ib) is unreactive] with the carbonyl compounds (II) leads stereoselectively to the adducts (III) which can be converted to the desired final products (VIIa), (VI Ib) via the intermediates (IV) and (V) (from [2,3] sigmatropic shift of the allylic sulfoxide oxygen).
ChemInform Abstract: Regioselective Generation and Diastereoselective Reactions in the β‐Position of Nitro Groups of Secondary Nitroalkanes Through α,β‐Doubly Deprotonated Derivatives (Super‐enamines).
Authors: BRAENDLI U. + , EYER M. , SEEBACH D. 
Published: May 2016

AbstractUnter der Bedingung A) lassen sich sek. Nitroalkane, wie am Beispiel des offenkettigen Vertreters (I) gezeigt ist, unter Bildung von Bis(lithiooxy)enaminen [‐ (II)] doppelt protonieren.
ChemInform Abstract: Chemoselective Oxidation of Secondary Hydroxy Groups by the Molybdenum Hexacarbonyl/Cetylpyridinium Chloride/tert‐Butyl Hydroperoxide System.
Authors: YAMAWAKI K. , YOSHIDA T. , SUDA T. , ISHI Y. , OGAWA M. 
Published: May 2016

AbstractSekundäre Hydroxygruppen lassen sich mit dem im Titel beschriebenen System auch in Gegenwart primärer selektiv zu Ketonen oxidieren.
ChemInform Abstract: Enzymatic Syntheses of Chiral Building Blocks with Trifluoromethyl or Pentafluoroethyl Groups.
Authors: KITAZUME T. , ISHIKAWA N. 
Published: May 2016

AbstractEine Serie optisch aktiver, Fluor enthaltender Alkohole wird durch en‐zymatische Reduktion mit Bäcker‐Hefe aus den entsprechenden Ketonen hergestellt.
ChemInform Abstract: Synthesis of 3‐Fluoroazacyclanes: Action of Hydrogen Fluoride on 1‐Azabicyclo[n.1.0]alkanes.
Authors: ALVERNHE G. , LAURENT A. , TOUHAMI K. , BARTNIK R. , MLOSTON G. 
Published: May 2016

AbstractDurch Umsetzung der 1‐Azabicycloalkane (I), (III) und (V) mit HF in der Flüssigphase oder mit Pyridin/HF (Olah′s Reagens) werden die 3‐Fluorazetidine (II), 3‐Fluorpiperidine (IV) und das 3‐Fluorazepin‐Derivat (VI) hergestellt.
ChemInform Abstract: In the Search for New Anticancer Drugs. Part 16. Selective Protection and Deprotection of Primary Amino Groups in Spermine, Spermidine and Other Polyamines.
Authors: SOSNOVSKY G. , LUKSZO J. 
Published: May 2016

AbstractSeveral known methods are discussed for the selective protection of the terminal primary amino functions in the naturally occurring spermine (IIa), spermidine (IVa), and other polyamines like (II) and (IV) without affecting the secondary amino group(s).
ChemInform Abstract: Palladium‐catalyzed C‐C Bond Formation Involving Aromatic C‐H Activation.
Authors: CATELLANI M. , CHIUSOLI G. P. , RICOTTI S. , SABINI F. 
Published: May 2016

AbstractEmploying PhOK as the base, the Pd‐catalyzed reaction of olefins (I)/ (VI) with bromides (II)/ (VII) predominantly yields products of either type (III) or type (IV)/ (VIII), depending on the Substitution of the aromatic Substrate [(IX) is obtained in an analogous manner; the reaction of cis‐(VIa) produces trans‐(VIIIa)].
ChemInform Abstract: Reactions of Cyclic Oxalyl Compounds. Part 24. Reaction of 4‐Benzoyl‐5‐phenyl‐furan‐2,3‐dione with Phenylhydrazones and Phenylhydrazine.
Authors: AKCAMUR Y. , PENN G. , ZIEGLER E. , STERK H. , KOLLENZ G. , PETERS K. , PETERS E.‐M. , VON SCHNERING H. G. 
Published: May 2016

AbstractDurch Reaktion der Phenylhydrazone (I) mit dem Furan (II) in der Schmelze oder in trockenem Benzol bei 80°C entsteht unter Abspaltung der Ketone R′COR2 jeweils die Carbonsäure (III).
ChemInform Abstract: Trimethylsilyl Cyanide ‐ a Reagent for Umpolung. Part 10. α,β‐Unsaturated Carbonyl Compounds from Saturated Carboxylic Acids by Redox Umpolung.
Authors: HERTENSTEIN U. , HUENIG S. + , REICHELT H. , SCHALLER R. 
Published: May 2016

AbstractDeprotonation of acrylonitriles such as (I), (IV) or (VII) Ieads to anions of type (II), which can be captured by alkylating agents as electrophiles.
ChemInform Abstract: A Simple Synthesis of 2‐Alkoxy‐4‐dialkylamino‐3‐aza‐3‐butenoic Nitriles and of N,N‐Dialkyl‐N′‐formylformamidines.
Authors: KANTLEHNER W. , HAUG E. , SPEH P. , BRAEUNER H. J. + 
Published: May 2016

AbstractMit Trimethylsilylcyanid (I) werden die Acetale (II) zu den Nitrilen (III) umgesetzt; mit Trimethylsilylchlorid (IV) und (II) erhält man die Aldehyde (V).
ChemInform Abstract: Nitration of the DBHA Cyclopropanecarboxylate Enolate. A New and Efficient Route to 1‐Aminocyclopropane‐1‐carboxylic Acid.
Authors: HAENER R. + , SEEBACH D. 
Published: May 2016

AbstractÜber eine Lithiierung wird aus dem Cyclopropancarbonsäureester (I) mit (II) der a‐Nitroester (III) erhalten.
ChemInform Abstract: A New Carbacyclin Synthesis.
Authors: BENNUA B. , DAHL H. , VORBRUEGGEN H. + 
Published: May 2016

AbstractDie Corey‐Lactone (I) werden in γ‐Oxosäuren (II) übergeführt und mit Phenyliminovinyliden‐phosphoran (III) zu Bicyclo[3.3.0]octenonen (IV) umgesetzt.
ChemInform Abstract: Synthesis and Ringopening Polymerisation of Cyclooctadiene (1,4).
Authors: HOLTRUP W. , STRECK R. , ZAAR W. , ZERPNER D. 
Published: May 2016

AbstractAls Zwischenprodukt bei der Cyclooctadien‐Isomerisierung von (I) nach (III) kann das 1,4‐Isomere (II) im kg‐Maßstab isoliert werden.
ChemInform Abstract: Stereochemical Control of Reductions. Part 8. Exploration of the Inner Limits of the Haptophilic Effect with 2‐Exo‐Substituted 7‐Methylenenorbornanes.
Authors: THOMPSON H. W. , WONG J. K. 
Published: May 2016

AbstractAus der 2‐endo‐Methyl‐7‐methylen‐norbornan‐carbonsäure (Ia) werden nach bekannten Verfahren in guten Ausbeuten die entsprechenden Derivate (Ib) bis (Ig) hergestellt.
ChemInform Abstract: The Nitration of Some 4‐Alkylphenols; Acid‐Catalysed Rearrangements of Some Polysubstituted 4‐Alkyl‐4‐hydroxycyclohexa‐2,5‐dienones.
Authors: GRAY M. J. , HARTSHORN M. P. , VAUGHAN J. 
Published: May 2016

AbstractNitration of the polysubstituted phenols (I) with fuming nitric acid at 50°C yields the nitrato dienones (II) and the hydroxydienones (III).
ChemInform Abstract: A New Class of Liquid Crystals Containing an Oxirane Ring.
Authors: SOLLADIE G. , BARTSCH R. , ZIMMERMANN R. G. , GOTTARELLI G. 
Published: May 2016

AbstractIt is shown that the trans stilbene epoxides (II) prepared from their stilbene precursors (I) (no yields given) represent a new class of nematic and smectic liquid crystals.
ChemInform Abstract: A Simple Route to the Intramolecular Quinhydrone of [2.2]Paracyclophanediene.
Authors: STOEBBE M. + , KIRCHMEYER S. , ADIWIDJAJA G. , DE MEIJERE A. 
Published: May 2016

AbstractPhotooxygenation of the diene (I) not only produces the already known endoperoxide (II) but also small amounts of a by‐product.
ChemInform Abstract: Inverted Prenylation of Nb‐Methoxycarbonyltryptamine. Synthesis of 3a‐(1,1‐Dimethylallyl)pyrrolo[2,3‐b]indole and 2‐(1,1‐Dimethylallyl)tryptamine Derivatives.
Authors: HINO T. , HASUMI K. , YAMAGUCHI H. , TANIGUCHI M. , NAKAGAWA M. 
Published: May 2016

AbstractDie Alkylierung des Tryptamin‐Derivats (I) mit dem Chlorpropin (II) ergibt ein Gemisch aus (III), (IV) und (Va).
ChemInform Abstract: Unusual Reaction of N,N‐Dimethylacetamide Diethylacetal with 2‐Aminomethylene‐ 5,5‐dimethylcyclohexanedione‐1,3. Synthesis of Coumarine and Carbostyril Derivatives.
Authors: SHANAZAROV A. K. , CHISTYAKOV V. V. , GRANIK V. G. 
Published: May 2016

AbstractDas Aminomethylencyclohexandion (I) reagiert mit Dimethylacetamiddiethylacetal (II) unter Kondensation zu einem Gemisch der beiden Verbindungen 84 (III) und (IV).
ChemInform Abstract: Transformation of trans,trans‐1‐Methoxy‐3,5‐diaryl‐2‐oxabicyclo[4.4.0]dec‐3‐enes into Semidithioacetals and 4H‐Thiopyranes. Structure of trans,trans‐1‐Mercapto‐3‐phenyl‐5‐(4‐methoxyphenyl)‐2‐thiabicyclo‐[4.4.0]dec‐3‐ene.
Authors: KLIMENKO S. K. , TYRINA T. I. , SOROKIN N. N. , VLASOVA L. V. , SHCHERBAKOV A. A. , ALEKSANDROV G. A. , STRUCHKOV YU. T. , KHARCHENKO V. G. 
Published: May 2016

AbstractDie trans,trans‐ Acetale (I) reagieren mit Schwefelwasserstoff bei nachfolgender gleichzeitiger Behandlung mit Schwefelwasserstoff und Chlorwasserstoff zu Dithiohalbacetalen (II).
ChemInform Abstract: Cyanothioacetamide in Heterocyclic Synthesis: A New Approach for the Synthesis of 2‐Pyridothione and 2‐Pyridazinothione Derivatives.
Authors: MOHAREB R. M. , FAHMY S. M. 
Published: May 2016

AbstractStarting from the pyridinthione (I), which is formed by self‐condensation of cyanothioacetamide (VIII), the pyridopyrazole (III), the pyridopyrimidine (IV), the pyridopyridine (V) and the bis‐pyridinthione compounds (VII) are synthesized.
ChemInform Abstract: Derivatives of 4,5‐Dihydroxy‐pyridones by Ring Enlargement.
Authors: STACHEL H.‐D. , WIESEND B. , KREINER C. 
Published: May 2016

AbstractAus den Benzy1idenverbindungen (I) entstehen die isomeren Brom‐hydrinether (II) und (III).
ChemInform Abstract: Synthesis of Heterocycles from Hydrazones of 1,5‐Diketones. Part 3.
Authors: MOSKOVKINA T. V. , TILICHENKO M. N. 
Published: May 2016

AbstractDie alicyclischen 1,5‐Diketone (I) reagieren mit Phenylhydrazin (II) über die primär gebildeten Monohydrazone (III) in unterschiedlicher Weise unter Cyclisierung weiter, wie im Formelschema skizziert ist.
ChemInform Abstract: Synthesis of Novel Dihydropyrimidines and Tetrahydropyrimidines.
Authors: CHO H. , SHIMA K. , HAYASHIMATSU M. , OHNAKA Y. , MIZUNO A. , TAKEUCHI Y. 
Published: May 2016

AbstractDie Kondensation der Amidine (II) mit den Olefinen (I) liefert zahlreiche tetrahydrierte Pyrimidinole (III), die sauer zu den Dihydro‐pyrimidinen (IV) dehydratisiert und dann in bekannter Weise z.B. zu (V) acyliert bzw. zu (VI) alkoxycarbonyliert bzw. zu (VIII) alkyliert werden können.
ChemInform Abstract: Acetals of Acid Lactams and Amides. Part 46. Unusual Reactions of α‐Cyano‐β‐dimethylaminocrotonamide with Derivatives of Anthranilic Acid.
Authors: YALIYSHEVA N. Z. , CHISTYAKOV V. V. , GRANIK V. G. 
Published: May 2016

AbstractDie Umsetzung der Enaminoverbindung (I) mit Anthranilsäureester (II) und mit Anthranilsäure (IV) ergibt anstelle der erwarteten Umaminierungsprodukte das Chinazolindion (III) bzw. das Cyanochinolon (V).
ChemInform Abstract: Synthesis of Selected 3‐Substituted‐Pyrimido[5,4‐e]‐1,2,4‐triazine‐5,7‐diamines as Potential Folate Antagonists.
Authors: WERBEL L. M. , ELSLAGER E. F. , JOHNSON J. L. 
Published: May 2016

AbstractDie Nitrile (I) werden über die Iminoether (II) mit dem Amino‐hydrazino‐pyrimidin (III) zu den Pyrimidotriazinen (IV) cyclisiert.
ChemInform Abstract: Cyanogen ‐ Bromide‐ and Methyl ‐ Chloroformate‐Mediated Synthesis of Some [3]Benzazonino[8,7,6‐abc]carbazole, [3]Benzazecino[9,8,7‐abc]carbazole, Naphth[1,8,7‐def]azonine and Naphth[1,8,7‐def]azecine Derivatives.
Authors: BREMNER J. B. , WINZENBERG K. N. 
Published: May 2016

AbstractBF3‐mediated Fischer indolization of (I) yields the indole‐annelated Substrates (III).
ChemInform Abstract: Decamethylsilicocene ‐ Synthesis and Structure.
Authors: JUTZI P. , KANNE D. , KRUEGER C. + 
Published: May 2016

AbstractDie Umsetzung des Dichlorobis‐[cyclopentadienyl]‐silans (I) mit Naphthalin‐Li, ‐Na oder ‐K führt zu der thermostabilen, jedoch luftempfindlichen, kristallinen Titelverbindung (II).
ChemInform Abstract: Bruceantin Support Studies. Part 8. Studies Related to the Robinson Transposition Reaction.
Authors: PARIZA R. J. , FUCHS P. L. 
Published: May 2016

AbstractDas Dien (Ia) liefert mit Triphenylphosphin (II) das Phosphoniumsalz (IIIa); die aus (Ia) erhaltenen Halogenverbindungen (Ib) und (Ic) reagieren nicht in diesem Sinne.
ChemInform Abstract: Stable Selenocarbonyl Ylides.
Authors: ALLMANN R. , KAISER F.‐J. , KRESTEL M. , SEITZ G. 
Published: May 2016

AbstractDie stabilen, kristallinen Selenocarbonyl‐ylide (III) werden durch Verdrängen von Triethylamin aus den Zwitterionen (II) mit den ausreichend nucleophilen Diaminocyclopropenselonen (I) erhalten.
ChemInform Abstract: Heterocyclisation Promoted by Mercuric Salts. A Highly Regioselective Synthesis of 3,4‐Dihydro‐2H,5H‐pyrano[3,2‐c][1]benzopyran‐5‐one Derivatives from 3‐(3‐Butenyl)‐4‐hydroxycoumarins.
Authors: BRAVO P. , TICOZZI C. , VIANI F. , ARNONE A. 
Published: May 2016

AbstractAnumber of mercuric salts (II) can be employed to convert cournarins (I) to the tricyclic compounds (III); a competitive ring Closure to give linearly fused systems does not occur.
ChemInform Abstract: Stabilization of (Halogenoacetyl)organylphenylphosphanes ‐ Crystal Structure of Br(OC)4Mn(PMePhC(O)CCl3).
Authors: LINDNER E. , MERKLE R. D. , HILLER W. , FAWZI R. 
Published: May 2016

AbstractDie sehr reaktiven Titelverbindungen (I) werden durch Reaktion mit (II) unter Bildung der Komplexe (III) stabilisiert.
ChemInform Abstract: Syntheses, Structures, and Bonding of Heteropentametallic Clusters [MCo3(CO)12{μ3‐M′(EPh3)}] (M: Fe or Ru; M′: Cu or Au; E: P or As).
Authors: BRAUNSTEIN P. , ROSE J. , DEDIEU A. , DUSAUSOY Y. , MANGEOT J.‐P. , TIRIPICCHIO A. , TIRIPICCHIO‐CAMELLINI M. 
Published: May 2016

AbstractThe neutral pentametallic Clusters (IIa)‐(IIc) are prepared from (I).