bluuebunny/crossref_metadata_2025 huggingface dataset:
ChemInform Abstract: Hydroboration. Part 73. Relative Rates of Hydroboration of Representative Heterocyclic Olefins with 9‐Borabicyclo[3.3.1]nonane.
Authors: BROWN H. C. , RAMACHANDRAN P. V. , PRASAD J. V. N. V.
Published: May 2016

Die Hydroborierung zahlreicher Olefine wie (I)‐(IV) mit 9‐Bora‐bicyclo[3.3.l]nonan (V) wird vergleichend untersucht.
ChemInform Abstract: Reaction of ω‐Azidoketones with Triphenylphosphine: General Approach to Cyclic Imines.
Authors: VAULTIER M. , LAMBERT P. H. , CARRIE R.
Published: May 2016

The haloketones (I), obtained in good to excellent yields by known literature methods, are transformed to the azides (II) which on reaction with triphenylphosphine slowly cyclize to Cyclic imines of type (III).
ChemInform Abstract: Bridgehead Hydrazines. Part 2. Preparation and Photolysis of 2‐Phenyl‐ s‐triazolo[1,2‐a]pyridazine‐1,3‐dione and of Pyridazino[1,2‐b]phthalazine‐6,11‐dione.
Authors: SHERADSKY T. , MOSHENBERG R.
Published: May 2016

Das aus Butadien (I) und dem Triazolindion (II) erhaltene Addukt (III) wird nach Bromierung zu dem Dien (V) dehydrobromiert.
ChemInform Abstract: Aerosol Direct Fluorination: Direct Synthesis of Perfluorinated Glyme Ethers.
Authors: ADCOCK J. L. , CHERRY M. L.
Published: May 2016

Die Aerosol‐Fluorierung der Glykolether(I) mit elementarem Fluor in einem bereits früher beschriebenen Reaktor liefert die perfluorierten Analoga (II) in isolierten Ausbeuten von 36%, 22%, 30% und 15%.
ChemInform Abstract: Synthesis of Aryl Methyl Ketones Mediated by Cobalt Tetracarbonyl Anion.
Authors: MIURA M. , AKASE F. , NOMURA M.
Published: May 2016

Durch Umsetzung der Arylbromide (I) mit Methyliodid (II) und Kohlenmonoxid (III) erhält man unter Co‐Katalyse die Acetophenone (IV) und die Benzoesäuren (V).
ChemInform Abstract: The Effect of the Structure of Substrates and Reaction Conditions on the Preparation of Acetylene 1,4‐Diols.
Authors: OLEJNIK M. , JASIOBEDZKI W. , POGRANICZNA‐RAMZA M.
Published: May 2016

The asym. acetylene 1,4‐diols (IV) are prepared in a two‐step sequence by conversion of the ketones (I) to the carbinols (III) and subsequent reaction of a second ketone with the Grignard reagent derived from (III).
ChemInform Abstract: Reaction of 1‐Arylpropenyl‐lithium with tert‐Alkyl Bromides. The Influence of Substituent Electronic Effects and Additives on the Course of the Reaction.
Authors: TANAKA J. , NOJIMA M. , KUSABAYASHI S.
Published: May 2016

Untersucht wird die Alkylierung der Lithiumverbindungen (I) mit tert.‐Butylbromid (II) oder dem Octenylbromid (X) in Abhängigkeit von Additiven wie HMPA und TMEDA; die Anteile an Alkylierung, Reduktion und Dimerisierung werden bestimmt.
ChemInform Abstract: Syntheses of Some Binaphthalenes.
Authors: BAJT O. , MEDJA Z. , POLANC S. , TISLER M. , KOLLER J.
Published: May 2016

Eine Reihe von Reaktionen werden in der Absicht durchgeführt, zwei Naphthalineinheiten unsymm. zu verknüpfen.
ChemInform Abstract: Alkynes and Cumulenes. Part 18. Nieuwland Acetylene Oligomerization: Structure of the Tetramers.
Authors: HOPF H. , EISENHUTH L. , LEHNE V. , ERNST L.
Published: May 2016

The highest‐boiling fraction obtained by the title reaction is composed of the trimer (I) and the (E)‐ and (Z)‐isomeric tetramers (II) and (III).
ChemInform Abstract: Enantioselective Synthesis of Disubstituted Alkynes via Organoboranes.
Authors: BROWN C. A. , DESAI M. C. , JADHAV P. K.
Published: May 2016

Das Boran (III), hergestellt aus Diisopinocampheylboran (I) und cis‐2‐ Buten (II), reagiert mit den Lithiumacetyliden (IV) in Gegenwart von Iod zu den Alkinen (V).
ChemInform Abstract: Preparation of F‐Alkyl Acetylenic and Propargylic Alcohols.
Authors: MOREAU P. , NAJI N. , COMMEYRAS A.
Published: May 2016

Die Fluoralkylketten enthaltenden Acetylenalkohole (IV) und (VIII) sowie die Propargylalkohole (IX) werden auf den skizzierten Wegen dargestellt.
ChemInform Abstract: Ethoxyacetylene: A Useful Building Block for the Organocopper(I) Mediated Synthesis of 1,4‐Diketones.
Authors: WIJKENS P. , VERMEER P.
Published: May 2016

Aus dem Ethoxyacetylen (I) lassen sich auf zwei Wegen die 1,4‐Diketone (VI) herstellen.
ChemInform Abstract: Synthesis of N‐(α‐Methoxyalkyl) Amides from Imidates.
Authors: LOKENSGARD J. P. , FISCHER J. W. , BARTZ W. J. , MEINWALD J.
Published: May 2016

Aus dem Säurechlorid (I) und dem Iminoether (II) erhält man über (III) nach Boranat‐Reduktion das Methoxybenzyl‐amid (IV).
ChemInform Abstract: Reactions of Perfluoronitriles. Part 2. Interactions with Phenylphosphine.
Authors: PACIOREK K. J. L. , NAKAHARA J. H. , KRATZER R. H.
Published: May 2016

Die Umsetzung des‐Perfluornitrils (I) mit Phenylphosphin (II) wird unter unterschiedlichen Reaktionsbedingungen untersucht.
ChemInform Abstract: Iminovinyl Carboxylates ‐ O‐Acyl Products of Enaminones with Acyl Chlorides.
Authors: WALTER W. , SAHA C. R.
Published: May 2016

Während die Enaminone (I) mit den Säurechloriden (II) ausschließlich die O‐acylierten Produkte (III) ergeben, liefert das entsprechende Aminoderivat (IV) mit (IIa) das O,N‐acylierte Produkt (V).
ChemInform Abstract: The Mechanism of Aromatization of 7‐Norbornadiene Acetals. Evidence for Norcaradiene Formation.
Authors: SUNKO D. E. , LOVRIC Z. , VANCIK H.
Published: May 2016

When 5,5‐dimethoxy‐I,2,3,4‐tetrachlorocyclopentadiene is reacted with dimethyl acetylenedicarboxylate, the desired tetrachloro compound (I) can not be identified.
ChemInform Abstract: Hexaethynylbenzene
Authors: DIERCKS R. , ARMSTRONG J. C. , BOESE R. , VOLLHARDT K. P. C.
Published: May 2016

Ethynylation of hexabromobenzene (I) with the acetylene (II) yields the product (III) (X‐ray analysis: RG: R3′; Z=3).
ChemInform Abstract: Benzophenone O‐oxide.
Authors: SANDER W.
Published: May 2016

Photolysis of matrix isolated diphenyl diazomethane (I) yields the carbene (II), which undergoes reaction with oxygen at higher temp. to give the O‐oxide (III).
ChemInform Abstract: Polyfluoro‐1,2‐epoxy‐alkanes and ‐cycloalkanes. Part 5. Some Polyfluoro‐1,2‐epoxides in the Cycloheptane Series.
Authors: COE P. L. , MOTT A. W. , TATLOW J. C.
Published: May 2016

Ausgehend von den perfluorierten Cycloheptenen (I) und (XIII) sowie den Cycloheptadienen (VII) und (XII) werden die im Formelschema angegebenen Epoxide (II), (VIII), (IX), (XI) und (XIV) synthetisiert.
ChemInform Abstract: Pyrrole Chemistry. An Improved Synthesis of Ethyl Pyrrole‐2‐carboxylate Esters from Diethyl Aminomalonate.
Authors: PAINE J. B. III , DOLPHIN D.
Published: May 2016

Aus den Oximen (I) werden die Aminoverbindungen (II) erhalten, die mit den Diketonen (III) in Gegenwart von Bortrifluorid über (IV) zu den Pyrrolen (V) cyclokondensiert werden können.
ChemInform Abstract: Cyclodehydrogenation of N‐Benzylidene‐o‐phenylenediamines to 2,2′‐Diaryl‐1,1′‐bibenzimidazoles with Dioxygen Catalyzed by Copper(I) Chloride in Pyridine.
Authors: SPEIER G. , PARKANYI L.
Published: May 2016

Aus den 0‐ Phenylendiamin‐mono‐benzal‐Derivaten (I) erhält man bei der Oxidation in Gegenwart von CuCl je nach Substitutionsmuster die Bis‐ benzimidazole (II) oder die Benzimidazole (III) bzw. die Azoverbindung (IVd).
ChemInform Abstract: Trifluoropyruvic Acid Hydrate in Heterocyclic Synthesis: A Facile Synthesis of 5‐Hydroxy‐5‐trifluoromethylhydantoin Derivatives.
Authors: MUSTAFA M. EL‐SAID , TAKAOKA A. , ISHIKAWA N.
Published: May 2016

Durch die Umsetzung des Trifluorbrenztraubensäure‐Hydrates (I) mit den Harnstoffen (II) werden in einem Einstufenverfahren die Hydantoine (III) hergestellt.
ChemInform Abstract: The Conversion of Tetrahydroquinoline into Derivatives of 8H‐Pyrido‐ (3,2,1‐jk][1,3]benzodiazepines via [2,3]‐Sigmatropic Rearrangements.
Authors: GASSMAN P. G. , LEE S. J.
Published: May 2016

Das aus dem Methylthioacetamid (I) hergestellte Chlorsulfoniumchlorid (II) reagiert mit Tetrahydrochinolin (III) zum Substitutionsprodukt (IV), das mit Raney‐Nickel zu dem Amid (V) entschwefelt und dann mit Paraformaldehyd zu dem Pyridobenzodiazepinon (VI) cyclokondensiert wird.
ChemInform Abstract: Asymmetrical Double‐Bond Isomerization of 4,7‐Dihydro‐ to 4,5‐Dihydro‐1,3‐dioxepins.
Authors: FRAUENRATH H. , PHILIPPS T.
Published: May 2016

Unter der angegebenen Bedingung lassen sich die Dioxepine (I) zu den Dioxepinen (II) isomerisieren, wobei die Ausb. je nach Katalysatorkonzentration 61‐91% betragen.
ChemInform Abstract: Contributions to the Chemistry of Boron. Part 167. Synthesis of Diazadiboretidines, Borazines, and Octahydrotetrazatetraborocines via Stannazane Cleavage Reactions.
Authors: FRANZ T. , HANECKER E. , NOETH H. + , STOECKER W. + , STORCH W. , WINTER G.
Published: May 2016

The diazadistannetidine (I) reacts by Sn ‐ Ncleavage with MeBBrZ to yield the diazadiboretidine (II), which dimerizes to the eight‐membered cyclic (III).
ChemInform Abstract: Chiral Synthesis via Organoboranes. Part 4. Synthetic Utility of Boronic Esters of Essentially 100% Optical Purity.
Authors: BROWN H. C. , NAIK R. G. , BAKSHI R. K. , PYUN C. , SINGARAM B.
Published: May 2016

Die Boronsäuren (I) und (IV) werden stereoselektiv in die Ester (III) und (V) übergeführt.
ChemInform Abstract: Diene Cycloadditions to P = C and As = C Bonds. Endo Rule in the Reaction of Cyclopentadiene with 2‐Acetyl‐1,2,3‐diazaphosphole.
Authors: KO Y. Y. C. Y. L. , CARRIE R. , TOUPET L. , DE SARLO F.
Published: May 2016

The diazaphospholes (Ia) and (Ib) and the diazaarsole (Ic) react with dimethylbutadiene (II) to give the Cycloadducts (III).
ChemInform Abstract: 2‐(2,4,6‐Tri‐tert‐butylphenyl)‐1‐arsaethyn ‐ the First Compound Containing an Arsenic‐ Carbon Triple‐bond.
Authors: MAERKL G. + , SEJPKA H.
Published: May 2016

In analogy to the synthesis of the phosphaethyn (IIIa) the title Compound (IIIb) (yield not given) was obtained in crystalline form.
ChemInform Abstract: Charge‐Transfer and Electron‐Transfer Properties of d6 Metal Complexes with μ‐Pyrazine.
Authors: GROSS R. , KAIM W.
Published: May 2016

The binuclear chromium complexes (I) and the Mn complexes (II) and (III) were prepared from photogenerated THF complexes by replacement of the THF by pyrazine in a thermal reaction (only one yield given).
ChemInform Abstract: Synthesis and Structure of the Co3Ti2 Complex [{μ‐[(C5H5)2TiOC]}2{(C5H5)3Co3}]; CO Reduction by Two Different Metal Centres.
Authors: GAMBAROTTA S. , STELLA S. , FLORIANI C. , CHIESI‐VILLA A. , GUASTINI C.
Published: May 2016

The title complex (III) is formed as shown.
ChemInform Abstract: Binuclear Analogues of Bis(triphenylphosphine) Complexes: Synthesis of Palladium(II) and Platinum(II) Complexes of m‐Bis(diphenylphosphino)benzene.
Authors: ALCOCK N. W. , JUDD L. , PRINGLE P. G.
Published: May 2016

The complex PtCl2(NCBu)2 was treated with 1,3‐bis(diphenylphosphino)benzene in CH2Cl2 tO give the binuclear complex (Ia), which crystallizes in the space group PI with Z=1.
ChemInform Abstract: A Simple Stereoselective Steroid Synthesis: Cyclization of an Epoxystannane.
Authors: JONES D. N. , PEEL M. R.
Published: May 2016

Auf dem im Formelschema beschriebenen Weg erhält man über eine stereoselektive Cyclisierung des Epoxystannans (VII) das Östratrientrion (X).
ChemInform Abstract: Unambiguous Preparation of a Nα,Nβ Chemodifferentiated α,β‐Diaminopropionic Ester Through Michael Addition onto a Dehydroalanine Derivative.
Authors: LABIA R. , MORIN C.
Published: May 2016

Der Brenztraubensäureester (II) und das Urethan (I) werden zum Aminoacrylsäureester (III) kondensiert, und dieser wird mit Benzylamin (IV) in den Diaminosäureester (V) übergeführt.
ChemInform Abstract: Stereocontrolled Total Synthesis of 1α,25‐Dihydroxyergocalciferol.
Authors: BATCHO A. D. , SERENO J. F. , BAGGIOLINI E. G. , HENNESSY B. M. , USKOKOVIC M. R.
Published: May 2016

Astereocontrolled total synthesis of the vitamin D2 metabolite (XI), which involves a coupling of the previously described Aring synthon (X) with the appropriately functionalized C‐ Dmoiety (IX), is described.
ChemInform Abstract: Antibiotic Models. Part 7. Diastereoselective Synthesis of a Rhodomycinone Model from D‐Glucose.
Authors: DYONG I. , HAGEDORN H.‐W. , THIEM J.
Published: May 2016

The ulose (I) (obtainable from glucose) reacts via Diels‐ Alder addition with the dienes (II) to give the cycloadducts (IIIa), (IIIb) diastereoselectively.
ChemInform Abstract: A Transfer Alkylation Approach to Pentalenolactone.
Authors: TROST B. M. , MELVIN L. S. JUN.
Published: May 2016

Pentalenolactone (XVII), an antibiotic and antitumor agent which is a representative of the′ polycondensed cyclopentanoid natura] products, requires the construction of a highly functionalized bicyclo[3.3.0] octyl system.
ChemInform Abstract: Piperazinylbenzonaphthoxazepines with CNS Depressant Properties.
Authors: NAGARAJAN K. , DAVID J. , KULKARNI Y. S. , HENDI S. B. , SHENOY S. J. , UPADHYAYA P.
Published: May 2016

2‐Aminonaphthol (II) is converted to the benzamide (III), which is cyclised to the lactam (IV).
ChemInform Abstract: Synthesis and Antiglaucomic Acitivity of N‐Carbamoyl Derivatives of Trimethoquinol.
Authors: IVANOV C. , PANOVA J. , BEROVA N. , MONDESHKA D. , MARKOV M. , RAKOVSKA R. , PAVLOVA S. , OVCHAROV R. , UZUNOV P.
Published: May 2016

The new type of β‐adrenergic blocker (Ib) is synthesized from the selective β‐adrenergic agonist trimethoquinol (S)‐(‐)‐(Ia).
ChemInform Abstract: Synthesis of New 3(5)‐(2‐Hydroxyphenybpyrazoles as Potential Analgesic Agents and Platelet Aggregation Inhibitors.
Authors: TAKAGI K. , TANAKA M. , MURAKAMI Y. , MORITA H. , AOTSUKA T.
Published: May 2016

Reaction of the nitrochromenone (Ia) with the hydrazines (IV) at room temp. gives the pyrazoles (IIa), (IIb) and (IIIa), whereas reaction of (Ia) with (IVb) under acidic conditions gives the isomers (IIb) and (IIIb).
ChemInform Abstract: Analysis of the Absorption Spectra of Complex Pentavalent Actinide Halides: LiUF6,α‐NaUF6, and CsUF6.
Authors: HECHT H. G. , MALM J. G. , FOROPOULOS J. , CARNALL W. T.
Published: May 2016

The title compounds have a common sixfold U‐Fcoordination that approaches an octahedral site symmetry for LiUFÖ but exhibits increasing trigonal distortion along the indicated symmetry.
ChemInform Abstract: EXAFS Evidence for Direct Rh‐Fe Bonding in SiO2‐Supported Rh‐Fe Bimetallic Catalysts.
Authors: ICHIKAWA M. , FUKUSHIMA T. , YOKOYAMA T. , KOSUGI N. , KURODA H.
Published: May 2016

Structural models for Rh‐Fe bimetallic catalysts supported on silica are obtained by combining the data derived from in situ EXAFS spectroscopy with the results of Mößbauer spectroscopy.
ChemInform Abstract: Synthesis and Properties of Br2VS2N3.
Authors: ROESKY H. W. , SCHIMKOWIAK J. , WALTHER F.
Published: May 2016

S4N4 reacts with VBr3 in CH2Br2 to give the 6‐membered ring compound Br2VS2N3.
ChemInform Abstract: Pyridine Derivatives as Complexing Agents. Part 13. The Stability of the Palladium(II) Complexes with Pyridine, 2,2′‐Bipyridyl, and 1,10‐Phenanthroline.
Authors: ANDEREGG G. , WANNER H.
Published: May 2016

The stability constants of the title complexes have been determined with potentiometric and spectrophotometric measurements.
ChemInform Abstract: Anodic Trifluoromethylation of Acrylic Acid. Synthesis of Diethyl (2,2,2‐Trifluoroethyl)malonate and Trifluorinated Analogues of Barbital and Amobarbital.
Authors: MULLER N.
Published: May 2016

Die elektrochemisch aus Trifluoressigsäure (I) erhaltenen Trifluormethyl‐Radikale (II) liefern mit Acrylsäure (III) die radikalische Zwischenstufe (IV), die zu Dimeren (V), Substitutionsprodukten (VI) oder (VIII) sowie Eliminierungsprodukten (VII) führt.
ChemInform Abstract: Selective Transformation of 2,3‐Epoxy Alcohols and Related Derivatives.
Authors: BEHRENS C. H. , KO S. Y. , SHARPLESS K. B. , WALKER F. J.
Published: May 2016

Die Ringöffnungsreaktionen von Epoxiden werden systematisch untersucht.
ChemInform Abstract: Utilization of Phenylthio Substituted Amines for the Synthesis of Pyrrolidines.
Authors: PADWA A. , DENT W. , NIMMESGERN H. , VENKATRAMANAN M. K. , WONG G. S. K.
Published: May 2016

The α‐phenylthio substituted amines (II), (VIII), (XIII), (XVI), (XX), (XXII) and (XXVI) are prepared with the aim of synthesizing pyrrolidine derivatives.
ChemInform Abstract: Cu2+/BH4‐ Reduction System: Synthetic Utility and Mode of Action.
Authors: COWAN J. A.
Published: May 2016

Die tertiären Nitroverbindungen (I) bzw. (III) werden durch Natriumboranat in Gegenwart von Kupfer(II)‐Ionen zu den Aminen (II) bzw. (IV) reduziert.
ChemInform Abstract: Sodium Borohydride Reduction of 1,2,3‐Triazine Derivatives.
Authors: OHSAWA A. , ARAI H. , OHNISHI H. , KAIHOH T. , ITOH T. , YAMAGUCHI K. , IGETA H. , IITAKA Y.
Published: May 2016

Die 1,2,3‐Triazine (I) und die quaternierten Verbindungen (III) werden durch Natriumborhydrid zu den 2,5‐Dihydroverbindungen (II) bzw. (IV) reduziert.
ChemInform Abstract: Selective Mixed Coupling of Carboxylic Acids. Part 3. Synthesis of Cyclopentadecanone from Cyclic Tetraacyl Diperoxides.
Authors: FELDHUES M. , SCHAEFER H. J. +
Published: May 2016

The reaction of dicarboxylic acids (III) or acid chloride (V) with compound (II) in the presence of DCC or pyridine and in a highly diluted ′medium gives the Cyclic tetraacyl diperoxides (IV).
ChemInform Abstract: Synthesis and Properties of 1,4‐Dihydropyrrolo[3,2‐b]pyrrole‐2,5‐dione Derivatives.
Authors: MUKAI T. , KONNO A. , KUMAGAI T. , SATAKE K.
Published: May 2016

Aus dem Bicyclus (I) erhält man mit NBS zunächst das Oxidationsprodukt (II), das mit weiterem NBS zum Dion (III) führt.
ChemInform Abstract: Synthesis and Properties of Amino‐acetylenic Esters of Some Fatty Acids.
Authors: ERGASHEV M. S. , KASYMOVA S. S. , KULAKHMATOVA M. A.
Published: May 2016

Durch Mannich‐Reaktion werden aus den Propargylsäureestern (I) die entsprechenden Morpholinomethylpropargylsäureester (II) erhalten, die auf ihre physiologische Wirkung geprüft werden.
ChemInform Abstract: Reactivity of Phosphenium Ions Toward 1,3‐ and 1,4‐Dienes.
Authors: COWLEY A. H. , KEMP R. A. , LASCH J. G. , NORMAN N. C. , STEWART C. A. , WHITTLESEY B. R. , WRIGHT T. C.
Published: May 2016

The phosphenium cations of the salts (I) ‐ prepared as indicated in the scheme ‐ react with 1,3‐dienes (V) and (IX) to give the 3‐phospholenium ions (VI), (VII) and (X)/ (XI) [the unstable derivative (VIIa) is converted to the phosphine oxide (VIII)].
ChemInform Abstract: Crystalline‐State Reaction of Cobaloxime Complexes by X‐Ray Exposure. Part 13. A Stepwise Structure Analysis of the Concerted Process of Racemization.
Authors: OHASHI Y. , TOMOTAKE Y. , UCHIDA A. , SASADA Y.
Published: May 2016

A new type of crystalline‐state racemization by X‐ray exposure has been found in the crystal of [(R)‐1‐cyanoethyl]bis(dimethylglyoximato)(3‐methylpyridine)cobalt(III).
ChemInform Abstract: Crystal and Molecular Structure of N,N′‐Diformylaniline.
Authors: ALLENSTEIN E. , HOFMANN F.‐J. , RIFFEL H.
Published: May 2016

The title compound crystallizes in the monoclinic space group P21/n with Z=8.
ChemInform Abstract: Double Bond and Skeletal Isomerization of 1‐Butene Over Lanthanum‐Modified Silicated Alumina.
Authors: STOECKER M. + , RIIS T. , HAGEN H.
Published: May 2016

Product distributions of catalyzed isomerizations show a decrease in isobutene (II) formation with increasing amount of La due to the blocking of the medium strong acid sites and the lowering of formation rates.
ChemInform Abstract: Asymmetric Synthesis of Chiral Synthons Bearing Alkynyl Group via Organoaluminum‐Promoted Pinacol‐Type Rearrangement.
Authors: SUZUKI K. , OHKUMA T. , MIYAZAWA M. , TSUCHIHASHI G.
Published: May 2016

Aus dem (S)‐Hydroxyamid (I) entstehen die Alkinole (II) als Diastereomerengemische nach bekannten Verfahren.
ChemInform Abstract: α‐Arylthio‐azahetarylacetonitriles.
Authors: VOLOVENKO YU. M. , I'LKUN T. G.
Published: May 2016

Die Hetarylacetonitrile (II) reagieren mit den Arylsulfenylchloriden (L) zu den im Titel genannten Verbindungen (III).
ChemInform Abstract: Selectivity of o‐Radicals.
Authors: GIESE B. , GONZALEZ‐GOMEZ J.‐A.
Published: May 2016

Radical (VIII) is generated in a manner analogous to (V).
ChemInform Abstract: Palladium Catalyzed Coupling of F‐Vinyl Zinc Reagents with Aryl Iodides.
Authors: HEINZE P. L. , BURTON D. J.
Published: May 2016

Die Umsetzung der Tri?uorethene (I) mit Zink liefert ein Gemisch der Vinyl‐Zink‐Verbindungen (II) und (III), die unter Palladium‐Katalyse mit den Aryliodiden (IV) zu den Styrol‐Derivaten (VI) reagieren.
ChemInform Abstract: Hydride Transfer Reaction Products in the Aminomethylation of Styrene.
Authors: MANNINEN K. , KARJALAINEN A.
Published: May 2016

Aminomethylation of styrene (II) with paraformaldehyde (III) and dimethylamine (Ia) ′leads to the compounds (IVa), (IVb) and (V) as major products.
ChemInform Abstract: Chemistry of Cumulenes. Part 6. Syntheses and Reactions of 1‐H‐Allene‐1,3‐dicarboxylic Acid Monoesters.
Authors: NADER F. W. , BRECHT A. , KREISZ S.
Published: May 2016

Title compounds of type (II) are synthesized by two methods.
ChemInform Abstract: Chemistry of Cumulenes. Part 7. Synthesis of Derivatives of 1,2,3,4‐Pentatetraene‐ 1,5‐dicarboxylic Acid Derivatives via Wittig Reaction with 1‐H‐Allene‐1,3‐dicarboxylic Monoester Chlorides.
Authors: NADER F. W. , BRECHT A. , KREISZ S.
Published: May 2016

Reaction of the carboxylic acid chlorides (II) [no yield given for (IIb)] with the ylides (III) furnishes the title compounds (IVa)‐(IVc) as pale to dark yellow products which are very reactive towards nucleophiles.
ChemInform Abstract: Synthesis of Eight‐Membered Carbocycles via Intramolecular [6π + 2π] Photocycloaddition of Alkenyltropones.
Authors: FELDMAN K. S. , COME J. H. , FREYER A. J. , KOSMIDER B. J. , SMITH C. M.
Published: May 2016

Irradiation of the alkenyltropones (I) in acidic methanol gives the title compounds (II) by intramolecular [671 + 21x] cycloaddition.
ChemInform Abstract: Synthesis of Higher Unsaturated Sulfides Using Palladium Complexes.
Authors: DZHEMILEV U. M. , KUNAKOVA R. V. , BAIBULATOVA N. Z.
Published: May 2016

Die Palladium‐katalysierte Umsetzung der Thiole (I) mit Butadien (II) führt zu Gemischen der Sulfide (III)‐(VIII).
ChemInform Abstract: Calixarenes. Part 17. Functionalized Calixarenes: The Claisen Rearrangement Route.
Authors: GUTSCHE C. D. , LEVINE J. A. , SUJEETH P. K.
Published: May 2016

Aus dem p‐tert.‐Butyl‐calix(4)aren (I) erhält man den Allylether (III), der nach Claisen zur p‐Allylverbindung (IVa) umgelagert wird.
ChemInform Abstract: Preparation of cis‐(2S,3R)‐Epoxy‐1‐butanol; the Unexpected Regiocontrol.
Authors: KANG J. , PARK M. , SHIN H. T. , KIM J. K.
Published: May 2016

The title compound (IV) is synthesized from L‐threonine in three steps (overall yield 54%).
ChemInform Abstract: New Type of Addition to 5‐Substituted 4‐Arylidene‐2‐(4,5‐dihydrofurfurylidene)‐ N,N‐dimethyliminium Bisperchlorates. Preparation of 4‐Substituted 5‐(N,N‐Dimethylamino)‐2‐furancarbaldehydes.
Authors: GRACZA T. , ARNOLD Z. , KOVAC J.
Published: May 2016

The reaction of the title salt (I), whose synthesis has been described previously, with various nucleophiles is studied.
ChemInform Abstract: Highly Regioselective Lactone Formation Catalyzed by Ruthenium Complexes.
Authors: ISHII Y. , IKARIYA T. , SABURI M. , YOSHIKAWA S.
Published: May 2016

Die Oxidation der Diole (IV) bzw. die Reduktion der Anhydride (I) zu den isomeren Phthaliden (II) und (III), die Interesse für die Synthese von Lignanen besitzen, wird beschrieben.
ChemInform Abstract: Synthesis and Some Chemical Transformations of 4,4,5,5,6,6‐Hexafluorocyclopenta[b]thiophene.
Authors: MAKSIMOV A. M. , PLATONOV V. E. , YAKOBSON G. G.
Published: May 2016

Die Hochtemperaturreaktion von 3‐Thiophenthiol (I) mit Tetra‐ fluorethylen (II) führt zu den Bicyclen (III) und (IV).
ChemInform Abstract: Chlorination of 1,3‐Dioxolan‐4‐ones.
Authors: LIKHTEROV V. R. , ETLIS V. S.
Published: May 2016

Die Chlorierung des Chlormethyldioxolanons (I) mit Chlor in Gegenwart von Dibenzoylperoxid liefert das 2‐Chlorderivat (II), aus dem durch Dehydrochlorierung das Methylenderivat (III) erhalten wird.
ChemInform Abstract: Oxidative Cyclization of β‐Stannyl Hydrazones.
Authors: NISHIYAMA H. , ARAI H. , KANAI Y. , KAWASHIMA H. , ITOH K.
Published: May 2016

Die Stannyl‐hydrazone (I) reagieren mit NBS zu den Azo‐cyclopropanen (II), die mit Zinn(II)‐chlorid als Katalysator zu den Dihydropyrazolen (III) umgelagert werden.
ChemInform Abstract: Reaction of 2‐Methyl‐5,6‐dihyro‐2H‐pyran with Dichlorocarbene.
Authors: IBATULLIN U. G. , PETRUSHINA T. F. , GATAULLIN R. R. , SAFAROV M. G.
Published: May 2016

Das Methyl‐ dihydropyran (I) reagiert mit Dichlorcarben zu einem Gemisch der cis‐ und trans‐ Oxabicycloheptane (II) mit dem Dichlormethyldihydropyran (III).
ChemInform Abstract: Fused Thiopyrones. Part 1. Thiopyrano[3,2‐b]indol‐4(5H)‐ones, Thiopyrano[2,3‐b]indol‐4(9H)‐ones as Byproducts.
Authors: GOERLITZER K. + , HOELSCHER D. +
Published: May 2016

Die Indole (Ia) und (Ib) werden mit Thioharnstoff (II) über (IIIa) und (IIIb) zu den Thioethern (IVa) und (IVb) umgesetzt, die mit Polyphosphorsäure zu den isomeren Heterocyclen (V) und (VI) kondensieren.
ChemInform Abstract: Reaction of 4‐Aminoimidazo[4,5‐c]pyridin‐2‐ones with α‐Bromomethylketones.
Authors: YUTILOV YU. M. , KHABAROV K. M.
Published: May 2016

A Das 4‐Amino‐imidazopyridinon (I) reagiert mit den Brommethylketonen (II) zu den Salzen (III), die entweder direkt unter den Reaktionsbedingungen oder unter dem Einfluß von Basen zu den Imidazo[4,5‐c]imidazo‐[1,2‐a]pyridinen (IV) cyclisieren.
ChemInform Abstract: Directed Synthesis of Translationally Isomeric [3]‐Catenanes.
Authors: RISSLER K. , SCHILL G. , FRITZ H. , VETTER W.
Published: May 2016

Starting from the reaction between the veratrol derivative (1), available from o‐vanillin, and the phosphonium sa1t(I1),the[3] catenanes (X111a)‐(XVa) are synthesized in a multistep sequence.
ChemInform Abstract: Synthesis of Fluorinated Polysiloxanes. Part l. Hydrosilylation of Fluorinated Allylic Olefins and Styroles.
Authors: BOUTEVIN B. , PIETRASANTA Y. , YOUSSEF B.
Published: May 2016

Durch die Hydrosilylierung des Pentafluorstyrols (I) und des Allylethers (IV) mit Dichlor‐ (IIa) oder Monochlor‐methylsilan (IIb) sowie Triethoxysilan (VI) erhält man die angegebenen Monoadditionsprodukte (III), (V) und (VII), die zur Herstellung neuer Silicone verwendet werden sollen.
ChemInform Abstract: Low‐Coordinated Phosphorus Compounds. Part 42. Separation and X‐Ray Structure Determination of the E,Z‐Isomers of 2,4,6‐Tri(tert‐butyl)phenyl‐phenylmethylene‐phosphaalkene.
Authors: APPEL R. , MENZEL J. , KNOCH F. , VOLZ P.
Published: May 2016

Hydrolysis of the phosphaalkene (Ia) gives the desilylated compound (Ic) as a separable mixture of (E)‐ and (Z)‐isomers.
ChemInform Abstract: Preparation and Reactivity of Monomeric (Tolylimido)molybdenum(V) Complexes and Structure of mer‐Trichloro‐trans‐bis(ethyldiphenylphosphine)(p‐tolylimido)molybdenum(V), Mo(Ntol)Cl3(EtPh2P)2.
Authors: CHOU C. Y. , HUFFMANN J. C. , MAATTA E. A.
Published: May 2016

Reaction of the p‐tolylimido‐Mo(VI) complex (I) with tert. phosphine ligands affords the monomeric p‐tolylimido‐Mo(V) complexes (IIa)‐(IId).
ChemInform Abstract: Perfluoromethyl‐Element‐Ligands. Part 35. Reactivity of Metallated Phosphanes and Arsanes of the Type π‐C5H5(CO)3MER2 (M: Cr, Mo, W; E: P, As; R: CF3, CN)
Authors: GROBE J. , HAUBOLD R.
Published: May 2016

The influence of the complex fragments (n5‐C5H5)M(CO)3 (M: Cr, Mo, W) on the basicity of the metallated phosphanes or arsanes in the complexes (I) is investigated by reactions with sulfur, methyliodide, fluorotrichloromethane, and W(CO)5THF.
ChemInform Abstract: Redox Behaviors of [Fe4S4(SR)4]2‐ and [Mo2Fe6S8X3(SR)6]3‐ (R: C6H4‐p‐n‐C8H17; X: SEt, OMe) in Aqueous Micellar Solutions.
Authors: TANAKA K. , MORIYA M. , TANAKA T.
Published: May 2016

The preparations of the title Clusters (I) and (II) are described, Starting from p‐oCtylbenzenethiol and FeC13/NaSH or (NEt4)3[Mo2Fe6S8(SEt)9] or FeC13/(NH4)2MoS4.
ChemInform Abstract: Complexes of Co(II), Ni(II), Cu(II) and Zn(II) with 3′AMP and 2′AMP.
Authors: PUIG P. , TERRON A. , MORENO V.
Published: May 2016

Depending on the pH value the I :1 molar reaction of adenosine 3′‐ and 2′‐monophosphoric acid with appropriate metal(II) nitrates in H2O affords the OH containing multinuclear Complexes (I) and (II) (pH 9.6) or the monomeric products (III) (pH4.5‐6).
ChemInform Abstract: Isolation and Properties of the Copper(II) ‐ Thiolate Complexes.
Authors: AOI N. , MATSUBAYASHI G. , TANAKA T.
Published: May 2016

The Cu(Il) ‐ thiolate complexes (II) and (IV) of the CuN4S type are prepared as shown and characterized by elecäonic and ESR spectroscopic, and cyclic voltammetric study.
ChemInform Abstract: First Synthesis of Ethylene‐bisporphyrines.
Authors: PONOMAREV G. V. , AHUL'GA A. M.
Published: May 2016

Beim Erhitzen von entsprechenden Ethan‐bis‐porphyrinen (I) in Essigsäure bilden sich die Ethylen‐bis‐porphyrine (II) in quantitativen Ausbeuten.
ChemInform Abstract: Further Applications of Selective Displacements in an Unsymmetrical Ditriflate.
Authors: BAER H. H. , RADATUS B.
Published: May 2016

Die durch Epoxidöffnung von (I) entstehenden isomeren Azidozucker (IIa) und (I IIa) werden nach Überführung in die Triflate (IIb) bzw. (IIIb), wie im Formelschema skizziert, zu den im Titel genannten Triamino‐ (VI) bzw. Tetraaminozuckem (VIII) umgesetzt.
ChemInform Abstract: Positional Isotope Exchange in Adenosine 5′‐[β‐18O4]Diphosphate and the Possible Role of Monomeric Metaphosphate.
Authors: LOWE G. , TUCK S. P.
Published: May 2016

Positional isotope exchange experiments have been undertaken with the Iabeled title species (III) prepared from compounds (I) and (II) to gain further insight into the stereochemical course of phosphoryl transfer reactions (concerning the possible role of monomeric metaphosphate as intermediate).
ChemInform Abstract: Anhydro‐D‐glucopyranose in Organic Synthesis. Preparation of a Fragment for a Synthesis of Rosaramycin.
Authors: CHALLENGER S. , PROCTER G.
Published: May 2016

Die Synthese der Zwischenstufe (IV) für die Herstellung von Rosaramycin aus der 1,3‐Anhydro‐D‐glucopyranose (I) auf stereospezifische Weise wird beschrieben.
ChemInform Abstract: Seeding with γ‐Alumina for Transformation and Microstructure Control in Boehmite‐Derived α‐Alumina.
Authors: MCARDLE J. L. , MESSING G. L.
Published: May 2016

Dehydration, transformation and densification of γ‐AlOOH (boehmite) are enhanced by addition of γ‐Al2O3 seed particles.
ChemInform Abstract: Chemical Diffusion in Lead Dioxide ‐ Electrochemical Measurements for the Determination of the Diffusion Coefficient of Hydrogen.
Authors: MUENZBERG R. + , POHL J. P.
Published: May 2016

The stoichiometry of PbO2 is changed by insertion or dissolution of hydrogen, if the interface PbO2/electrolyte is polarized; the kinetics of this process is determined mainly by diffusion within the oxide.
ChemInform Abstract: Chemical Vapour Deposition of Alumina from AlCl3 ‐ H2 ‐ CO2 on a Stoichiometric TiC Substrate: A Thermodynamic Approach.
Authors: LHERMITTE‐SEBIRE I. , COLMET R. , NASLAIN R. , BERNARD C.
Published: May 2016

The thermodynamic approach of complex CVD equilibria (based on a Computer minimization of the total Gibbs free energy of the system) has been used to predict the nature of the alumina‐based deposits as a function of temp., pressure, and feed gas composition.
ChemInform Abstract: Na6Ge2Se7, the First Selenidosorogermanate(IV).
Authors: EISENMANN B. , HANSA J. , SCHAEFER H. +
Published: May 2016

The novel compound has been prepared as shown in the scheme.
ChemInform Abstract: Colored Ceramics with K2NiF4‐Type Structure.
Authors: OLAZCUAGA R. , EL KIRA A. , LE FLEM G. , HAGENMULLER P. , MAESTRO P.
Published: May 2016

New red pigments with formula either (V) or CaYAh ‐"Cr"O4 have been prepared using the intrinsic optical properties of chromium and rare earth metals.
ChemInform Abstract: Charge‐Transfer Organic Crystals: Molecular Vibrations and Spectroscopic Effects of Electron‐Molecular Vibration Coupling of the Strong Electron Acceptor TCNQF4.
Authors: MENEGHETTI M. , PECILE C.
Published: May 2016

Avibrational analysis of the title compound 7,7,8,8‐tetracyano‐ 2,3,5,6‐tetrafluoroquinodimethane and its monomer radical anion is reported, based on Raman depolarization ratio measurements and IR data.
ChemInform Abstract: Synthesis and Electrical Properties of TTF and Related Donor Salts with Fluorosilicate Anions.
Authors: MATSUBAYASHI G. , YOKOYAMA K. , TANAKA T.
Published: May 2016

Tetrathiafulvalen (I), Tetraselenafulvalen (II) und Dibenzotetrathiafulvalen (III) liefern durch anodische Oxidation in Gegenwart von Fluorosilicaten als Leitsalz die typische Halbleitereigenschaften aufweisenden Komplex‐Salze (IV)‐(VII) (elektr.
ChemInform Abstract: Solid‐State 13C NMR Molecular Structure of Microcrystalline, Polymeric Me2SnHPO4.
Authors: LOCKHART T. P. , MANDERS W. F.
Published: May 2016

Identification of the microcrystalline product of the reaction of Me2SnCl2 with Na2HPO4 and NaH2PO4 as Me2SnHPO4 by solid‐state 13C NMR.
ChemInform Abstract: Diastereoselective Aldol Addition Using Boron Trichloride or Alkoxydichloroborane.
Authors: CHOW H.‐F. , SEEBACH D.
Published: May 2016

Under the conditions indicated in the scheme, the ketones (I) react with the aldehydes (II) to give mainly the syn‐′aldol adducts (III).
ChemInform Abstract: Asymmetrie Synthesis of α‐Hydroxy‐Esters via Ester Enolates with Very High Diastereoselectivity.
Authors: GAMBONI R. , TAMM C.
Published: May 2016

The key step in the synthesis of optically active hydroxy acids (VII) from (Ia) ‐ viz.
ChemInform Abstract: Elimination and Addition Reactions. Part 40. The Insignificant Effect of Strain in Higher Order Eliminations in 1,1‐ Bis(phenylsulphonyl) Carbanions with ω‐Leaving Groups.
Authors: BENEDETTI F. , STIRLING C. J. M.
Published: May 2016

Contrary to expectations based on the Ruzicka generalizations, the rate constants for cyclization of the iodides (Ia) decrease in the order of ring members 3 5 4 6 7. This orderindicates that strain has little inhibitory effect.
ChemInform Abstract: Remote Intramolecular Functionalization of Arylnitrenium Ions.
Authors: ABRAMOVITCH R. A. , HAWI A. , RODRIGUES J. A. R. , TROMBETTA T. R.
Published: May 2016

Durch eine Säure‐katalysierte Zersetzung des Arylazids (I) erhält man über das Imin (II) das Cyclohexadienospirolacton (III).
ChemInform Abstract: Kinetic Studies of Lewis Acidity. Part 2. Catalysis by Tin(IV) Chloride, by Some Organotin(IV) Chlorides, and by Tin(II) Chloride of the Anionotropic Rearrangement of 1‐Phenylprop‐2‐en‐1‐ol in Tetramethylene Sulphone Solution.
Authors: DOOLAN P. C. , GORE P. H. , HOLLINGWORTH R. , WATERS D. N. , AL‐KA'BI J. , FAROOQI J. A.
Published: May 2016

The Catalysis of the isomerization of (I) induced by SnCl4 is reduced when H2O and especially when LiCl or a proton sponge are added, due to hydration or deactivation of the reactive species.
ChemInform Abstract: Photochemical Rearrangements of 5,6‐Epimino‐5,6‐dihydro‐β‐ionone and Derivatives.
Authors: MUELLER E. P. +
Published: May 2016

The photochemical behaviour of the title compounds (I) differs from that of their epoxy and methano analogues.
ChemInform Abstract: Triplex Catalyzed Diels‐Alder Reactions: Addition of Indene to 1,3‐Cyclohexadiene.
Authors: CALHOUN G. C. , SCHUSTER G. B.
Published: May 2016

Inden (I) und Cyclohexadien (II) reagieren bei der Bestrahlung in Gegenwart von Katalysatoren (III) zu den Addukten (IV) und (V).
ChemInform Abstract: Photo‐Oxidation of 2,3,7,8‐Tetrakis(trimethylsilyl)benzo[3,4]cyclobuta[1,2‐b]biphenylene in the Presence of Oxygen: Unusual Cleavage of a Benzene Ring to Generate an Alkyne Unit.
Authors: MESTDAGH H. , VOLLHARDT K. P. C.
Published: May 2016

Bei der oxidativen Photolyse des Si‐substituierten Benzocyclobutabiphenylens (I) wird der mittlere Benzolring unter Bildung der Acetylene (II) und (IV) und des Achtrings (III) umgewandelt.
ChemInform Abstract: Solvent‐Reactant‐Support Interactions in Liquid‐phase Hydrogenation.
Authors: WISMEIJER A. A. , KIEBOOM A. P. G. , VAN BEKKUM H.
Published: May 2016

The Pt/ C or Pd/ C Catalyst, when loaded with a H2SO4 film, is deactivated by H2SO4 reduction.
ChemInform Abstract: Asymmetric Hydrogenation Catalyzed by Rhodium Complexes of 2,3‐Bis(dimethylphosphino)maleic Anhydride and 2,3‐Bis(dimethylphosphino)‐N‐phenylmaleimide.
Authors: KINTING A. , KRAUSE H.‐W.
Published: May 2016

Die asymmetrische, Rhodium‐katalysierte Hydrierung der Olefine (V) unter Verwendung der Liganden (III) bzw. (IV) wird untersucht.
ChemInform Abstract: Tetramethyldiamido Phosphate Directed β‐Lithiation of a π‐Excessive Heterocycle: d2‐Synthon to 2‐Substituted Butenolides.
Authors: NAESMAN J. H. + , KOPOLA N. , PENSAR G.
Published: May 2016

Das Furyl‐bis‐dimethylamino‐phosphat (I) wird zu (II) metalliert und dann mit den üblichen elektrophilen Reagentien wie Halogeniden, Oxoverbindungen, Diphenyldisulfid, DME etc. in 3‐Stellung zu (IV) substituiert.
ChemInform Abstract: A Useful Use of Hexafluoropropene and Dialkylamine Adducts as Fluorinating Agents for Alcohols and Carboxylic Acids.
Authors: TAKAOKA A. , IWAKIRI H. , FUJIWARA N. , ISHIKAWA N.
Published: May 2016

Die Umsetzung des Hexa?uorpropens (I) mit den Aminen (II) liefert ein Gemisch 59 der Amine (III) und der Enamine (IV).
ChemInform Abstract: Reaction of Perfluoro‐2‐methylpentene‐2 with O‐Nucleophiles.
Authors: SNEGIREV V. F. , MAKAROV K. N.
Published: May 2016

Das Perfluorisohexen (I) reagiert mit den Alkoholen (II) zu den Addukten (IIIa) neben dem Isohexan (IIIb), den Enolethern (IV) und (V) sowie den Diethern (VI).
ChemInform Abstract: Synthesis of Monofluoro Heterocycles Using Fluoroolefins as Starting Materials.
Authors: TAKAOKA A. , IBRAHIM K. M. , KAGARUKI S. R. F. , ISHIKAWA N.
Published: May 2016

In einer zusammenfassenden Arbeit wird beschrieben, wie ausgehend von Trifluorethylen (I) und von Hexafluorpropen (VI) auf den skizzierten Wegen die α‐Fluor‐ β‐ketoester (V) und (XIV) sowie die Fluormalonate (XIX) und (XXI) hergestellt werden können.
ChemInform Abstract: Synthesis of Sesbanimide: An Approach for the Synthesis of Ring C.
Authors: RAO A. V. R. , YADAV J. S. , NAIK A. M. , CHAUDHARY A. G.
Published: May 2016

Eine einfache Methode für die Bildung des Furanringsystems (VII) im Sesbanimid (VIII) wird beschrieben.
ChemInform Abstract: General Approach for the Stereocontrolled Synthesis of Tricyclic Lactones via Allene Intramolecular Cycloaddition.
Authors: HAYAKAWA K. , OHSUKI S. , KANEMATSU K.
Published: May 2016

Die Propargylether von 1‐Vinyl‐cyclohexen‐3‐olen (I) bzw. (VII)‐(X) werden durch Behandlung mit tert.‐Butylat zu Ethern wie (III) cyclisiert, wobei z.B. Allenylether‐Zwischenstufen wie (II) erhalten werden können.
ChemInform Abstract: Metalation of Isoxazolyloxazolines, a F acile Route to Functionally Complex Isoxazoles: Utility, Scope, and Comparison to Dianion Methodology.
Authors: NATALE N. R. , MCKENNA J. I. , NIOU C.‐S. , BORTH M. , HOPE H.
Published: May 2016

Aus den Isoxazol‐carbonsäuren (I) werden die Isoxazolyl‐oxazoline (II) hergestellt und dann mit elektrophilen Reagentien wie Alkylierungsmitteln oder Aldehyden zu (III) substituiert.
ChemInform Abstract: The Thyme Polyethers: An Approach to the Synthesis of a Molecular Knotted Ring.
Authors: WALBA D. M. , ARMSTRONG J. D. III , PERRY A. E. , RICHARDS R. M. , HOMAN T. C. , HALTIWANGER R. C.
Published: May 2016

The compound (VII) is gradually synthesized as described in the scheme.
ChemInform Abstract: Studies of Phosphazenes. Part 28. Reactions of Pentachloro‐ and Pentafluoro(triphenylphosphazenyl)cyclotriphosphazenes with Sodium Methoxide. Mechanistic Aspects and Their Implications for Nucleophilic Displacement at a Tetrahedral Phosphorus(V) Center.
Authors: SWAMY K. C. K. , KRISHNAMURTHY S. S.
Published: May 2016

Methoxylation of (I) or (VII) affords the Substitution products (II)‐(VI) or (VIII)‐(XI), whose structures have been elucidated by 1H, 31P, and 19F NMR spectroscopy.
ChemInform Abstract: Surface‐Modified Electrodes: Oxidative Electropolymerization and Deposition of Ni[Me4(RBzo)2[14]tetraeneN4] Complexes.
Authors: BAILEY C. L. , BEREMAN R. D. , RILLEMA D. P. , NOWAK R.
Published: May 2016

Aseries of surface‐modified electro‐ (I) were examined.
ChemInform Abstract: Magnetic Properties and Crystal Structure of a Linear‐Chain Copper(II) Compound with Bridging Acetate and Oxamidate Ligands.
Authors: BENCINI A. , BENELLI C. , FABRETTI A. C. , FRANCHINI G. , GATTESCHI D.
Published: May 2016

The reaction of diethyloxalate with neopentanediamine in ethanol at O ° Cyields the ligand N,N′‐bis(2‐(aminomethyl)‐2‐methylpropyl)oxamide, which leads by reaction with copper sulfate hydrate to the corresponding Cu complex.
ChemInform Abstract: Formal Total Synthesis of (±)‐Isocomene by Application of the α‐Alkinone Cyclization.
Authors: MANZARDO G. G. G. , KARPF M. , DREIDING A. S.
Published: May 2016

The gas‐flow thermolytic α‐alkynone cyclization procedure is employed twice in the preparation of the tricyclic ketone (XVIIa), a known synthetic precursor of isoicomene (XVIIb).
ChemInform Abstract: Thermal Degradation of Glycosides. Part 1. Degradation of Typical Triterpenoid and Steroid Glycosides.
Authors: HIGUCHI R. , KITAMURA Y. , KOMORI T.
Published: May 2016

Heating of the title compounds to up to 30°C above their melting points results in the formation of the corresponding aglycones and prosapogenins.
ChemInform Abstract: A Synthetic Approach to the AB‐Ring System of Forskolin.
Authors: KULKARNI Y. S. , SNIDER B. B.
Published: May 2016

Wittig‐Reaktion des Phosphorans (I) mit β‐Acetoxyacrolein (II) liefert das instabile Dien (III), das mit dem Chinon (IV) zum Diels‐Alder‐ Addukt (V) reagiert).
ChemInform Abstract: Synthesis of (all‐E,l4S)‐14,15‐Epoxy‐14,15‐dihydrogeranylgeranial and 1,2‐Epoxy‐ 1,2‐dihydrophytoen.
Authors: ARM C. , SCHWABE R. , PFANDER H.
Published: May 2016

Der aus D‐Mannit hergestellt Cm‐Baustein (I) wird mit dem aus Geranylacetat synthetisierten Cm‐Sulfonalkohol (II) zu (III) gekuppelt.
ChemInform Abstract: Synthesis of Yohimbines. Part 5. Enantioselective Total Synthesis of Yohimbine and β‐Yohimbine Antipodes.
Authors: BLASKO G. , KNIGHT H. , HONTY K. , SZANTAY C.
Published: May 2016

The keto ester (‐ )‐(I) [obtained from the racemic keto ester via diastevreomeric salt formation with (‐ )‐tartaric acid in 66% yield] is converted to the unsaturated diester (+)‐(III) by reaction with the phosphonate (II).
ChemInform Abstract: The Definite Structure of Americanin‐A and Hydnocarpin.
Authors: ANTUS S. , SELIGMANN O. , WAGNER H.
Published: May 2016

The structure of americanin‐A (I) is established by comparison of its degradation products (IIa)‐(IIc) with the known isomeric compounds (IIIa)‐(IIIc).
ChemInform Abstract: Synthesis of (±)‐Clavularin B.
Authors: URECH R.
Published: May 2016

The title compound (III) is prepared by Michael addition of 3‐silylated but‐3‐en‐2‐one to the silylated enol (II) and aqueous work‐ up.
ChemInform Abstract: Synthesis of Acarnidines: Guanidinated Spermidine Homologues Through Imine Intermediates.
Authors: YORKE S. C. , BLUNT J. W. , MUNRO M. H. G. , COOK J. C. , RINEHART K. L. JUN.
Published: May 2016

The precursor hydroxyamides (III) are prepared by addition of the acid Chloride (I) to the amino alcohols (II).
ChemInform Abstract: Emission Center of CaS:Mn(x) (x: 0.1, 0.3, 0.8, 1.3 at%) Powders.
Authors: YAMASE T.
Published: May 2016

The emission and ESR spectra of four Mn‐doped CaS samples have been measured in order to investigate the effect of Mn concentration on the photoemission.
ChemInform Abstract: Influence of the Alkali Metal Cation in Solution on the Electroluminescence of a ZnO Electrode During Persulfate Reduction.
Authors: FICHOU D. , KOSSANYI J.
Published: May 2016

The electroluminescence (EL) intensity of a ZnO electrode in an aqueous electrolyte during the pulsed reduction of 820%′ depends strongly on the alkali metal countercation (Li+, Na+, K+, NHI ).
ChemInform Abstract: The n‐Silicon/Thallium(III) Oxide Heterojunction Photoelectrochemical Solar Cell.
Authors: SWITZER J. A.
Published: May 2016

Aprotective film of thallium(III) oxide, a degenerate n‐type semiconductor which can be deposited on conducting or semiconducting Substrates, greatly improves the stability of irradiated n‐silicon in aqueous solution.
ChemInform Abstract: Studies on the FeVO4‐Fe2(MoO4)3 System.
Authors: WALCZAK J. , ZIOLKOWSKI J. , KURZAWA M. , TRZESNIOWSKA L.
Published: May 2016

The title system has been investigated in the temp. range 20‐1000°C over the whole concentration range of substrates.
ChemInform Abstract: Interaction of Excited Dioxouranium(VI) Ion with Amino‐acids: a Laser Flash Photolysis, Quantum Yield and ESR Investigation.
Authors: KEMP T. J. , SHAND M. A.
Published: May 2016

The lifetime of (U0? ] in acidic solution is systematically reduced on addition of the various amino‐acids.
ChemInform Abstract: Preparation and Properties of the Germyltrihydroaluminate Ion.
Authors: WINGLETH D. C. , NORMAN A. D.
Published: May 2016

Solutions of (III) and (VI) have been prepared as shown in the scheme (crystalline salt products could not be obtained).
ChemInform Abstract: Synthesis of Alternating Hydroxy‐ and Methy1‐Substituted Hydrocarbons by Oxymercuration of Cyclopropylcarbinols.
Authors: COLLUM D. B. , STILL W. C. , MOHAMADI F.
Published: May 2016

Aseries of cyclopropylcarbinols is transformed to the corresponding hydroxy‐ and methyl‐substituted hydrocarbons using the oxymercuration method A).
ChemInform Abstract: N‐ and C‐Attacks of Phenylnitrenium Ions Generated from Phenyl Azides in the Presence of Trifluoroacetic Acid and/or Trifluoromethanesulphonic Acid.
Authors: TAKEUCHI H. , TAKANO K.
Published: May 2016

In the presence of TFA or TFSA, phenyl azide (I) is initially converted to its conjugate acid (the influence of various solvents on this process is demonstrated by a comparison of decomposition rates), which loses nitrogen to form the phenylnitrenium ion (III).
ChemInform Abstract: Regiospecific sulfonation onto C‐3 Hydroxyls of β‐Cyclodextrin.
Authors: FUJITA K. , TAHARA T. , IMOTO T. , KOGA T.
Published: May 2016

In contrast to the much slower reaction in H2O, sulfonation of β‐cyclodextrin in 30% aqueous CH3CN takes place regiospecifically at pH 12 using B‐naphthylsulfonyl Chloride as the sulfonating agent.
ChemInform Abstract: Strained Cycloalkenynes.
Authors: MEIER H. , HANOLD N. , MOLZ T. , BISSINGER H. J. , KOLSHORN H. , ZOUNTSAS J.
Published: May 2016

Strained cycloalkenynes of type (I)‐(XXI) can be obtained from the corresponding 1,2,3‐selenadiazoles which are cleaved by action of BuLi or tBuLi or by thermolysis.
ChemInform Abstract: Synthesis of Functionalised Tricyclo[5.2.2.01,5]undecenes Related to the Isoeremolactone Skeleton.
Authors: HAGIWARA H. , UDA H.
Published: May 2016

Mit dem Benzolderivat (I) als Ausgangsverbindung gelingt die Synthese der Isomeren (VII) auf dem beschriebenen Weg.
ChemInform Abstract: Regiochemistry of Nucleophilic Opening of β‐Substituted Styrene Oxides with Thiolate Anions: Model Experiments in the Synthesis of Leukotriene Analogues.
Authors: MARPLES B. A. , SAINT C. G. , TRAYNOR J. R.
Published: May 2016

The trans‐epoxides (I) react with thiols (II) to give the erythro‐products (III).
ChemInform Abstract: (Perhalogenomethylthio)heterocycles. Part 21. Reactions of Halogenated Perhalogenomethylthiopyrroles: Salt and Radical Formation, Dimerisation.
Authors: CIBURA K. , GERSTENBERGER M. R. C. , HAAS A. , KIRSTE B.
Published: May 2016

Aus den Pyrrolen (I) werden die Silber‐Salze (II) und das Kalium‐Salz (IIIb) hergestellt.
ChemInform Abstract: Acetamidacetal Cyclization. Part 3. Heterocyclic Fusion Compounds Containing 2‐Aminopyridine and ‐quinoline Moieties.
Authors: EIDEN F. , BERNDL K.
Published: May 2016

Kondensation der heterocyclischen Aminoketone (II), (V), (X), (XIII) und (XV) mit den Acetamidacetalen (I) bzw. (VII) liefert die Heterocyclen (IV), (VI), (VIII), (IX), (XI), (XII), (XIV) und (XVI).
ChemInform Abstract: New Pyrido[1,2‐a]benzimidazoles.
Authors: HAMMAD M. A. , KAMEL M. M. , ABBASI M. M. , EL‐WASIMI M. T. , HASSAN H. N. A.
Published: May 2016

Ausgehend vom Benzimidazolderivat (I) sind auf dem skizzierten Weg die Benzimidazole (II) und die Heterocyclen (III) und (IV) zugänglich.
ChemInform Abstract: Synthesis, Vibrational Spectra, and X‐Ray Crystal Structure of Di‐μ‐hydroxobis[bromodichloro(tetrahydrofuran)tin(IV)]‐Tetrahydrofuran (1/2).
Authors: TUDELA D. , FERNANDEZ V. , VEGAS A.
Published: May 2016

Careful hydrolysis of (I) in THF yields the title compound (II), which crystallises in the space group P21/c with Z=2.