bluuebunny/crossref_metadata_2025_split huggingface dataset:
ChemInform Abstract: Selectivity of Deprotection of Benzyl, MPM (4‐Methoxybenzyl) and DMPM (3,4‐Di‐ methoxybenzyl) Protecting Groups for Hydroxy Functions.
Authors: HORITA K. , YOSHIOKA T. , TANAKA T. , OIKAWA Y. , YONEMITSU O. 
Published: May 2016

AbstractThe 4‐methoxybenzyl (M PM) and 3,4‐dimethoxybenzyl (DM PM) protecting groups for hydroxy functions are readily removed with DDQ in CH2Cl2 containing a small amount of H2O. For example, the respective alcohols [e.g.
ChemInform Abstract: New Direct Esterification Method Using Di‐2‐pyridyl Sulfite as a New Coupling Agent.
Authors: KIM S. , YI K. Y. 
Published: May 2016

AbstractThe title reagent (II) (which is used in the crude form due to its instability; no yield given) is an efficient Coupling agent for the direct esterification of carboxylic acids under mild conditions (equimolar amounts of (III), (IV) and (II) are used).
ChemInform Abstract: Secondary Deuterium Kinetic Isotope Effects in Enantioselective Hydroborations with (+)‐Diisopinocampheylborane.
Authors: MANN B. E. , CUTTS P. W. , MCKENNA J. , MCKENNA J. M. , SPENCER C. M. 
Published: May 2016

AbstractNot the substituents in the vinyl position but rather those in the allyl position are crucial for the enantioselectivity of the hydroboration of alkenes with the title borane.
ChemInform Abstract: Stereocontrolled Synthesis of 2,5‐Linked Bis‐tetrahydrofurans via the Triepoxide Cascade Reaction.
Authors: HOYE T. R. , SUHADOLNIK J. C. 
Published: May 2016

AbstractA complementary set of stereochemically controlled approaches to the preparation of twelve diastereomeric bis‐tetrahydrofurans (Ia)‐(If) and (IIa)‐(IIf) is described.
ChemInform Abstract: Oxidative Free‐Radical Cyclisations via Cobalt(I) Reagents. Novel Approach to Functionalised Butyrolactones.
Authors: BHANDAL H. , PATTENDEN G. , RUSSELL J. J. 
Published: May 2016

AbstractIn Gegenwart des Cobalt‐Komplexes (II) erhält man aus dem Acetal (I) das Cyclisierungsprodukt (III), das nach saurer Hydrolyse zum Lacton (IV) oxidiert wird.
ChemInform Abstract: The Photochemistry of 1‐Alkenylbenzotriazoles Methodology for the Synthesis of Indoles.
Authors: WENDER P. A. , COOPER C. B. 
Published: May 2016

AbstractA novel method for the construction of the indole nucleus is described; it is based on the photolysis of 1‐alkenylbenzotriazoles such as (IV), (IX) or (XIII) which provide the indoles (Va), (X) or (XIV), respectively.
ChemInform Abstract: A Synthesis of trans‐2‐Arylbenzocyclobuten‐1‐ols.
Authors: MACDONALD D. I. , DURST T. 
Published: May 2016

AbstractAus dem Kondensationsprodukt (I), zugänglich aus 6‐Brom‐piperonal und Malonester, erhält man bei der Umsetzung mit den Grignard‐Verbindungen (II) bzw. den Benzonitrilen (III)/CuLi die Addukte (IV), die zu (V) verseift und decarboxyliert werden.
ChemInform Abstract: Heterocyclic Spiro Compounds. Part 2. Synthesis of 1′‐Substituted 1,3,4,6,7,11b‐Hexahydrospiro[benzo[a]quinolizine‐2,3′‐pyrrolidine]‐2′,5′‐diones.
Authors: MENENDEZ J. C. , TRIGO G. G. , SOELLHUBER M. M. + 
Published: May 2016

AbstractDie im Titel genannten Verbindungen (VI) werden ausgehend vom Piperidinon (I) nach dem im Schema angegebenen Reaktionsweg hergestellt.
ChemInform Abstract: Pyridazines. Part 31. A Facile Synthesis of 3‐Pyridazinecarbonitriles via 2‐(4‐Toluenesulfonyl)‐2,3‐dihydro‐3‐pyridazinecarbonitriles.
Authors: DOSTAL W. , HEINISCH G. 
Published: May 2016

AbstractDie Pyridazine (I) liefern mit Trimethylsilylcyanid (II) und Tosylchlorid (III) die Dihydrocyanopyridazintosylate (IV), die sich basenkatalysiert zu den Cyanopyridazinen (V) spalten lassen; mit Natriumborhydrid wird (IV) zum Tetrahydropyridazin (VI) hydriert.
ChemInform Abstract: Reaction of Phosphonium Ylides with Alkyldichloroboranes.
Authors: BESTMANN H. J. , ARENZ T. 
Published: May 2016

AbstractThe l :l molar reaction of the phosphonium ylides (Ia) with the alkyldichloroboranes (IIa), (IIc) gives the phosphonio alkyldichloroborates (IIIa)‐(IIIc).
ChemInform Abstract: [MoR(η3‐C3H5)3], R: Alkyl; Alkylmolybdenum Complexes with Agostic C‐H‐»Mo Bond.
Authors: BENN R. , HOLLE S. , JOLLY P. W. , MYNOTT R. , ROMAO C. C. 
Published: May 2016

AbstractThe reaction of the binuclear Mo complex (I) with isopropyl‐MgCl in THF at ‐78°C gives the isopropyl‐Mo complex (II) with agostic Mo‐H interaction which is confirmed by 1H and 13C NMR spectra.
ChemInform Abstract: Coordination Modes of Polydentate Ligands. Part 4. The Crystal and Molecular Structure of an Oxo‐bridged Iron(III) Complex Containing a Pentadentate Imino‐ Alkoxy Ligand.
Authors: KONEFAL E. , LOEB S. J. , WILLIS C. J. , STEPHAN D. W. 
Published: May 2016

AbstractIn the presence of FC", template condensation of the fluorinated keto‐alcohol (I) with the triamine (II) led to two products: the fully condensed complex (III) and the partially condensed complex (IV), which was characterized by a Crystal structure determination (space group C2/c, Z=4) (n0 yields given).
ChemInform Abstract: Methylene‐Bridged Dinuclear Gold(III) Complexes with Terminal and Bridging Ylide Ligands.
Authors: SCHMIDBAUR H. , HARTMANN C. 
Published: May 2016

AbstractThe 1:2 molar reaction of the dimeric, methylene‐bridged gold(III) ylide dihalide (I) with ylides (II) leads via monosubstitution products to the disubstitution compounds (III) in quantitative yields.
ChemInform Abstract: Polymorphism of APd2X2 Compounds (A: Sr, Ba; X: As, Sb).
Authors: MEWIS A. 
Published: May 2016

AbstractThe low temp. (LT) modification of SrPd2Sb2 (prepared from the elements at 750°C) crystallizes at room temp. in the CaBe2Ge2‐type structure (P4/nmm, Z=2).
ChemInform Abstract: Optical Absorbance (A) and Photoelectrochemical Quantum Efficiency (n) of Titanium Oxide Modified by Ion lmplantation and Reductive/Oxidative Annealing.
Authors: TESCHNER D. M. , SCHUMACHER R. , STRITZKER B. 
Published: May 2016

AbstractIt is shown that Avaries drastically upon modification.
ChemInform Abstract: Dissociation Kinetics of 1,7‐Diaza‐4,10,13‐trioxacyclopentadecane‐N,N′‐diacetic Acid Complexes of Lanthanides.
Authors: SEKHAR V. C. , CHANG C. A. 
Published: May 2016

AbstractKinetics and mechanisms of the exchange reac‐ tion of lanthanide (La, Pr, Eu, Tb, Er, Yb, Lu) Complexes of the ligand (I) with Cu(II).
ChemInform Abstract: A Convenient Synthesis of Alkynyl Ketones from Esters.
Authors: YAMAGUCHI M. , SHIBATO K. , FUJIWARA S. , HIRAO I. 
Published: May 2016

AbstractDie Addition der Lithium.‐ acetylide (II) an die Ester (I) in Gegenwart von Bortrifluoridetherat führt zu den Ketonen (III).
ChemInform Abstract: Cumulated Ylides. Part 18. A Synthesis of Triethyl 3‐Arylorthoacrylates.
Authors: BESTMANN H. J. , ROTH K. 
Published: May 2016

AbstractDie Addition von Ethanol an das Phosphoran (I) ergibt das Triethoxyethylidenphosphoran (II), das mit den Benzaldehyden (III) die Olefine (IV) bildet.
ChemInform Abstract: Electrochemical Behavior of Copper(II)‐ Dipeptide Complexes in Mixed Solvents.
Authors: AIHARA M. , NAKANURA Y. , NISHIDA Y. , NODA K. 
Published: May 2016

AbstractThe effects of the solvents (mixtures of water and acetonitrile, DMF, or DMSO) on the reduction potentials of the copper(II) ‐ dipeptide Complexes are discussed (dipeptide: Gly ‐ Gly, Gly ‐ Ala, Gly ‐ Val, Gly ‐ Leu, Gly ‐ Ileu, Gly ‐ Thr, Gly‐ ‐ Glu, Gly ‐ Phe, Ala ‐ Ala, Ala ‐ Val, Ala ‐ Leu, Ala ‐ Ileu, Ala ‐ Glu, Ala ‐ Ser, Ala‐Tyr).
ChemInform Abstract: Identification of Diastereomeric 2‐Oxo‐1,2,3‐oxaisothiazolidines.
Authors: BARTNIK R. , CEBULSKA Z. , ORLOWSKA B. , FAURE R. , LAURENT A. , LOISELEUR H. 
Published: May 2016

AbstractReaction of SOCI; with the corresponding amino or aziridine" alcohols yields title compounds whose isomers are separated and identified as products (I)‐(VII).
ChemInform Abstract: Sodium Hydrogen Telluride ‐ A New Convenient Reagent for Deblocking Allyl Carboxylates and Allyl Phenyl Ethers.
Authors: SHOBANA N. , SHANMUGAM P. 
Published: May 2016

AbstractThe use of method A) renders possible the cleavage of the allyl group of compound (I), leading to the acid (II).
ChemInform Abstract: Magnesium‐Methanol as a Simple Convenient Reducing Agent for α,β‐Unsaturated Esters.
Authors: YOUN I. K. , YON G. H. , PAK C. S. 
Published: May 2016

AbstractDie ouß‐ungesättigten Carbonsäureester (I) werden durch Magnesium in Methanol in guten Ausbeuten zu den gesättigten Estern (II) reduziert.
ChemInform Abstract: The Combination of Potassium Fluoride and Calcium Fluoride: A Useful Heterogeneous Fluorinating Reagent.
Authors: ICHIHARA J. , MATSUO T. , HANAFUSA T. , ANDO T. 
Published: May 2016

AbstractEine Mischung aus Kalium‐ und Calciumfluorid ist ein sehr wirksames Reagens zur Überführung von verschiedenen Säurechloriden (I), (III) und (V) sowie von Alkylchloriden (VII) und Alkylbromiden (IX) in entsprechende Fluoride.
ChemInform Abstract: Diastereoselective Synthesis of (E)‐Alkenes and (E)‐l,ω‐Dienes Starting from Diastereoisomeric Mixtures of 1‐Bromo‐1‐alkenes: New Syntheses of Monounsaturated or Bridged Ring‐Ketal Naturally Occurring Substances.
Authors: ROSSI R. , CARPITA A. 
Published: May 2016

AbstractAus den Vinylhalogeniden (I) bzw. (V) erhält man bei der Umsetzung mit der Grignard‐Verbindung (II) in Gegenwart von Pd‐Katalysatoren die sterisch einheitlichen Diene (III) bzw. (VI), 47 Liie zu den Ketonen (IV) bzw. (VII) hydratisiert werden.
ChemInform Abstract: Geminal Azo‐ and Heteroelement Functions. Part 3. Oxidation Products of Arylhydrazone Compounds.
Authors: GSTACH H. , SCHANTL J. G. 
Published: May 2016

AbstractDie Reaktion der Hydrazone (I) mit Brom in Pyridin liefert ein Gemisch der Pyridinium‐Salze (II) und (III), aus dem ohne weitere Reinigung durch Erhitzen mit Methanol die im Titel genannten Verbindungen (IV) erhalten werden.
ChemInform Abstract: A New Route to Selectively Protected cis‐4a‐Methylhexahydronaphthalene‐1(2H),7(8H)‐diones.
Authors: WIJNBERG J. B. P. A. , KESSELMANS R. P. W. , DE GROOT A. 
Published: May 2016

AbstractAus den bicyclischen 8‐Hydroxy‐enonen (I) entstehen mit HBr in Ether Gemische der isomeren Diketone (II) und (III), die mit Trimethylorthoformiat zu den Bis‐acetalen (IV) führen.
ChemInform Abstract: Simple, Stereocontrolled Synthesis of 1β‐Methylcarbapenem Antibiotics from 3(R)‐Hydroxybutyric Acid.
Authors: IIMORI T. , SHIBASAKI M. 
Published: May 2016

Abstract(3R)‐Hydroxy‐buttersäure (I) wird in Form des Borenolats (II) nach früher beschriebenen Methoden mit dem Imin (IIIb) zu dem Addukt (IVb) umgesetzt, während (IIIa) nicht reagiert.
ChemInform Abstract: Decarbonylation of Furfurol. Determination of the Conditions for the Utilization of a Long‐Lived Palladium Catalyst.
Authors: JUNG K. J. , LEJEMBLE P. , GASET A. , KALCK PH. , MAIRE Y. 
Published: May 2016

AbstractSelective decarbonylation of furfurol into furan can be achieved at 158°C and Iatm by palladium deposited on charcoal.
ChemInform Abstract: Synthesis of 4‐Alkenyl‐2,4‐dialkyl‐3‐dialkylaminocarbonyl‐4‐butanolides by Means of Allylic Organozinc Compounds.
Authors: MLADENOVA M. , GAUDEMAR‐BARDONE F. , SIMOVA S. , COUFFIGNAL R. 
Published: May 2016

AbstractThe reaction of the β‐ketoamides (I) with the α‐bromo acids (II) produces the acids (III), in part as diastereomeric mixtures.
ChemInform Abstract: Synthesis of 2‐(7‐Indolyl)benzimidazoles via 7‐Formylindoles.
Authors: BLACK D. ST. C. , KUMAR N. , WONG L. C. H. 
Published: May 2016

AbstractDie Formylierung der 4,6‐Dimethoxyindole (I) führt zu den 7‐Formyl‐ Derivaten (I I), die teilweise mit o‐Phenylendiamin zu den Benzimidazolen (III) kondensiert werden können.
ChemInform Abstract: Preparation of N‐Alkyl 5‐Oxazolidinones from N‐Alkylaminoamides.
Authors: LASPERAS M. , PASCAL R. , TAILLADES J. , COMMEYRAS A. 
Published: May 2016

AbstractDas 0L‐N‐Methylaminopropionamid (III) reagiert mit Chloral (II) in Abhängigkeit von den Mengenverhältnissen und der Reaktionstemperatur entweder zu (I) oder diastereospezifisch zu dem cis‐ Oxazolidinon (IV).
ChemInform Abstract: A New Ring Interconversion: 3‐Azido‐1,2,4‐thiadiazoles from the Reaction of Thionyl Chloride with 1‐Alkyl‐5‐aminotetrazoles.
Authors: BUTLER R. N. , O'DONOGHUE D. A. , O'HALLORAN G. A. 
Published: May 2016

AbstractDie Alkyl‐amino‐tetrazole (I) reagieren mit Thionylchlorid zu den Azido‐thiadiazolen (II), von denen (IIb) auch aus dem Guanidin (III) über die Thioverbindung (IV) und das Thiadiazol (V) zugänglich ist.
ChemInform Abstract: A New Synthesis of N‐Bridgehead Heterocycles.
Authors: BRANDI A. , GUARNA A. , GOTI A. , DE SARLO F. 
Published: May 2016

AbstractDie in situ erzeugten Nitriloxide (I) reagieren mit Methylencyclopropan (II) zu heterocyclischen Spiroverbindungen (III), die bei der Thermolyse nicht zu Dihydropyridonen (IV) führen, aber in Gegenwart von Kaliumcarbonat die anellierten Dihydropyridone (V) liefern.
ChemInform Abstract: Antiinflammatory Activity of Substituted 6‐Hydroxypyrimido[2,1‐f]purine‐2,4,8(1H,3H,9H)‐triones.
Authors: BLYTHIN D. J. , KAMINSKI J. J. , DOMALSKI M. S. , SPITLER J. , SOLOMON D. M. , CONN D. J. , WONG S.‐C. , LEHMAN VERBIAR L. , BOBER L. A. , CHIU P. J. S. , WATNICK A. S. , SIEGEL M. I. , HILBERT J. M. , MCPHAIL A. T. 
Published: May 2016

AbstractDie Synthese der im Titel genannten Verbindungen (III) durch Kondensation der 8‐Aminopurine (I) mit den Malonsäureestern (II) bzw. durch spezifische 7‐Alky ie‐ rung der Tricyclen (IV) wird beschrieben.
ChemInform Abstract: Preparation, Structure, and Properties of 3,3,5,5‐Tetrakis(trifluoromethyl)‐4H‐1λ4,2,4,6‐thiatriazine.
Authors: BRAUER D. J. , HAAS A. , PETERMAN K. E. , RIELAND M. 
Published: May 2016

AbstractTrimeres Thiazylchlorid (I) reagiert nach Pyrolyse in Tetrachlorkohlenstoff mit dem Lithiumimid (II) zu dem Thiatriazinlithiumderivat(III), das zum freien Heterocyclus (IV) hydrolysiert.
ChemInform Abstract: Synthesis and Rearrangement of 1‐(N‐Methylcarbamoyl)‐1‐nitroso‐1‐(diethoxyphosphoryl)‐ethane.
Authors: KASHEMIROV B. A. , KAKADII L. I. , KHOKHLOV P. S. 
Published: May 2016

AbstractDie Nitrosierung des Carbamoyl‐phosphorylethans (I) mit Nitrosylchlorid liefert die C‐Nitrosoverbindung (II), die im Festzustand als Dimer vorliegt.
ChemInform Abstract: Biologically Active 1,2,4‐Triazole and Imidazole Containing Phosphorylated Alcohols.
Authors: LINDNER E. , VARUGHESE K. A. , HUEBNER D. + , EBERLE O. , SCHILLING B. 
Published: May 2016

AbstractThe addition of the secondary phosphane chalcogenides (II) to the ketones (I) gives the phosphorylated alcohols (III).
ChemInform Abstract: Novel Peroxo Complexes of Zirconium Containing Organic Ligands.
Authors: TARAFDER M. T. H. , MIAH M. A. L. 
Published: May 2016

AbstractThe six‐co‐ Ordinate monoperoxo‐Zr complexes (I) and (IIIa) are prepared by reaction of Zr nitrate dihydrate (II) with H2O2 in the presence of stoichiometric amounts of the bidentate NO ligands or the tridentate ONO Iigands.
ChemInform Abstract: Nitrogen Insertion in Isolongifolane/Longibornane Systems via Beckmann/Schmidt Rearrangements: A Comparative Study.
Authors: VAIDYA S. P. , NAYAK U. R. 
Published: May 2016

AbstractWhile the ketone (II) can be transformed to the lactone (I) using method A) or B) and oxidized to the lactone (III) (yield given in mg), the isomeric ketone (VIII) remains unchanged under these conditions.
ChemInform Abstract: From Penicillin to Penem and Carbapenem. Part 9. C1‐Unit Introduction and the Carbapenam Synthesis from the Penicillin Molecule.
Authors: FUJIMOTO K. , IWANO Y. , HIRAI K. 
Published: May 2016

AbstractThe bis(phenylseleno)penicilI‐ anate (III) ‐ obtained from the diazo compound (I) ‐ undergoes (R)‐hydroxy‐ ethylation to give the (R)‐penicillanate (V) with high selectivity [ratio of (R):(S)‐pro‐ ducts = 30:1).
ChemInform Abstract: Synthesis of New Dihydroxy Phenacylidene Triphenylphosphoranes. New Precursors in the Preparation of Flavonoid Compounds. Synthesis of 6‐ and 7‐Hydroxychromones.
Authors: LE FLOC'H Y. , LEFEUVRE M. 
Published: May 2016

AbstractAus den Dihydroxyacetophenonbenzoaten (I) erhält man über eine Bromierung und Reaktion mit Triphenylphosphin die Phosphoniumsalze (II) und weiter die Ylide (III).
ChemInform Abstract: Synthesis and Structure of 6‐Phenylcyclophosphamides.
Authors: SHIH Y.‐E. , WANG J.‐S. , LIU L.‐K. 
Published: May 2016

AbstractReaktion des aus dem Benzoesäureester (I) hergestellten Aminoalkohols (III) mit dem Phosphorsäure‐amiddichlorid (IV) liefert ein chromatographisch trennbares Gemisch der cis‐ und trans‐konfigurierten, im Titel genannten Verbindung (V).
ChemInform Abstract: Spectroscopic Investigation of Sulphidation of Zinc and Lead Carbonates.
Authors: GARBASSI F. , MARABINI A. M. 
Published: May 2016

AbstractThe results of IR and XPS studies indicate that the surfaces of smithsonite (ZnCO3) and cerussite (PbCO3) mineral ores are sulphidized in a different manner.
ChemInform Abstract: Chemistry of Acetylene Exposed to Alumina and Alumina‐Supported Rhodium Catalysts.
Authors: HANSON D. M. , UDAGAWA Y. , TOHJI K. 
Published: May 2016

AbstractThe very similar products which are formed in the title reaction with Al2O3, thermally activated Al2O3, or Rh/Al2O3 catalysts prove to be acetylene trimers.
ChemInform Abstract: Addition of Crotylchromium(II) and Dilithium Propionate to (R)‐2,3‐O‐Isopropylideneglyceraldehyde: Steric Course and Synthetic Application in a Formal Synthesis of (+)‐ and (‐)‐δ‐Multistriatin.
Authors: MULZER J. , DE LASALLE P. , FREISSLER A. 
Published: May 2016

AbstractThe crotylchromium(II) compound (II), which is obtained from crotyl bromide and CrCl2, adds to the (R)‐glyceraldehyde (I) with high enantiofacial and low diastereofacial selectivity to yield the stereoisomers (IIIa), (IIIb) and (IIIc) in a 54:2:44 ratio.
ChemInform Abstract: Highly Stereoselective Aldol‐Type Reaction of Chiral Tin(II) Enolate.
Authors: IWASAWA N. , MUKAIYAMA T. 
Published: May 2016

AbstractDas aus dem Thiazolidin‐2‐thion (I) mit Zinntriflat darstellbare Zinnenolat reagiert mit den Aldehyden (II) in einer Aldol‐artigen Reaktion unter hoher Stereoselektivität zu den Derivaten (III).
ChemInform Abstract: Radical Rearrangement of a Thioester Mediated by Cobalamin.
Authors: TADA M. , INOUE K. , OKABE M. 
Published: May 2016

AbstractDie reduktive Debromierung des Thiolesters (I) mit Zink in Gegenwart von Cobalamin liefert in Abhängigkeit von den Reaktionsbedingungen neben dem Ester (II) den umgelagerten Thiolester (III) sowie die ungesättigten Thiolester (IV) und (V).
ChemInform Abstract: Synthesis of Chloro‐ and Dichloronitromethane.
Authors: MARTYNOV I. V. , BIKKINEEV R. KH. , UVAROV V. I. 
Published: May 2016

AbstractDie Chlornitroessigsäureester (I) bzw. die Säurechloride (III) decarboxylieren bei der Verseifung und bilden die im Titel genannten Verbindungen (II).
ChemInform Abstract: Synthesis of Fluorochloronitronitrosomethane.
Authors: MARTYNOV I. V. , BREL' V. K. , UVAROVA L. V. 
Published: May 2016

AbstractFluorchlornitroessigsäure (I) reagiert mit Salpetersäure zum bisher unbekannten tetrasubstituierten Methan (II).
ChemInform Abstract: Acid‐Catalysed Cyclisation of p‐Mentha‐1,8(9)‐diene‐ and p‐Mentha‐1,8(10)‐diene‐ 9‐carboxylic Acid.
Authors: GIERSCH W. , BRAUCHLI R. , THOMMEN W. , SCHULTE‐ELTE K. H. 
Published: May 2016

AbstractTreatment of the title compounds (Ia) and (Ib) with either H3PO4 or BF3 ‐ Et2O affords the bridged tricyclic lactones (II) or (VI) as main products.
ChemInform Abstract: Synthesis of Chiral 2‐Methyl‐3‐alkenoic Esters via 1,2‐Rearrangement of Alkenyl Group.
Authors: HONDA Y. , ORI A. , TSUCHIHASHI G. 
Published: May 2016

AbstractDie entsprechend dem Formelschema hergestellten Acetale (V) hydrolysieren unter stereospezifischer 1,2‐Umlagerung derAlkenylgruppe zu den chiralen Estern (IX), die optisch und geometrisch rein erhalten werden.
ChemInform Abstract: Reactions of Anthrone with Nontransition and Transition Metal Alkoxides.
Authors: TAMANO M. , KOKETSU J. 
Published: May 2016

AbstractDie Germanium‐ und Zinn‐Alkoholate (II) reagieren mit Anthron (III) zu den 10‐Alkylanthronen (I); die Alkoholate (IV) reduzieren (III) dagegen zu Anthracen (V) und Dihydroanthracen (VI), wobei zusätzlich die Aldehyde (VII) entstehen.
ChemInform Abstract: Esters of Branched Aminoacids in the Reaction with N‐(2,3‐Epoxypropyl)pyrrolidone.
Authors: SIDEL'KOVSKAYA F. P. , RASPEVINA N. A. , IGNATENKO A. V. , PONOMARENKO V. A. 
Published: May 2016

AbstractD‐ und L‐Valin‐ sowie L‐Leucinethylester (I) reagieren mit dem im Titel genannten Reagens (II) zu den monosubstituierten Produkten (III), wobei die Konfiguration vollständig erhalten bleibt.
ChemInform Abstract: 1,3‐Dioxanone Derivatives from β‐Hydroxy‐carboxylic Acids and Pivalaldehyde.
Authors: SEEBACH D. , ZIMMERMANN J. 
Published: May 2016

AbstractThe dioxanone (III) which is obtained from the compounds (I) and (II) gives an enolate (V) which is stable at low temp. in THF solution and can be alkylated diastereoselectively to the compounds (VI) or (VIII) (mixture of 2 diastereomers).
ChemInform Abstract: Oxidation of Pyrimidine Base Derivatives with m‐Chloroperbenzoic Acid.
Authors: HARAYAMA T. , KOTOJI K. , YANADA R. , YONEDA F. , TAGA T. , OSAKI K. , NAGAMATSU T. 
Published: May 2016

AbstractDie Persäure‐Oxidation der substituierten Pyrimidindione (Ia)‐(Ic) sowie des Thymidins (IIa) und des Uridins (IIb) in Dichlormethan liefert die im Schema angeführten Oxidationsprodukte.
ChemInform Abstract: 1,3,8,10,11,14‐Hexazapentaphene‐2,4,7,9(14H,3H,8H,11H)‐tetraones (Bent Double‐Headed 5‐Deazaflavins) with Strong Oxidizing Power.
Authors: YONEDA F. , KOGA M. , IBUKA T. , YANO Y. 
Published: May 2016

AbstractDie im Titel genannten Verbindungen (III) werden nach den zwei im Schema angegebenen Methoden aus dem p‐Phenylendiamin (I) und den Uracil‐ Derivaten (II) bzw. (V) hergestellt.
ChemInform Abstract: Pteridines. Part 82. Synthesis and Reactivity of Lumazine‐7‐sulfenic Acids.
Authors: HECKEL A. , PFLEIDERER W. 
Published: May 2016

AbstractThe treatment of the disulfides (IV) which are obtained starting from the hydroxylumazines (I) via the intermediates (II) and (III) with KOH leads to l :l‐mixtures of the spectroscopically indentified mercaptolumazines (III) and sulfenic acids (V).
ChemInform Abstract: Investigations on 1,3‐Thiazines. Part 35. Oxidations of Thiocarbamidates.
Authors: HANEFELD W. , GUENES Z. E. + 
Published: May 2016

AbstractThe reaction between the title compound (I) and the thiocarbamoyl chlorides (II) yields the expected thiocarboxamides (III) along with unexpected by‐products, i.e. the carboxamides (IV).
ChemInform Abstract: Studies on the Reaction of Diethyl Azodicarboxylate with Tris(tert‐butyl)phenylphosphines.
Authors: NAVECH J. , REVEL M. 
Published: May 2016

AbstractDas Arylphosphin (I) reagiert mit dem Azodicarbonsäurediester (II) über die Zwischenstufen (III) und (IV) zu dem Phosphoran (V), das thermisch zu dem Diazadiphosphetidin (VI) dimerisiert.
ChemInform Abstract: Reactivity Patterns in the Reactions of [Rh(CO)2Cl]2 with Chelating Ketones.
Authors: SUGGS J. W. , WOVKULICH M. J. , WILLIARD P. G. , LEE K. S. 
Published: May 2016

AbstractDer Dirhodium‐tetracarbony1‐Komplex (I) reagiert mit dem zur Enolbildung befähigten S‐Chinolylbenzylketon (II) in Benzol zum n‐Komplex (III), mit 8‐Chinolylphenylketon (IV) unter Transfer von Sauerstoff und Freisetzung von Kohlendioxid zum 1,3‐Dirhodiometallacyclobutan‐Komplex (V).
ChemInform Abstract: Synthesis of Quinone‐Capped Porphyrins by Porphyrin Self‐Photosensitized Reaction.
Authors: OSUKA A. , FURUTA H. , MARUYAMA K. 
Published: May 2016

AbstractDie durch eine Chinoneinheit überbrückten Porphyrine (III)‐(V) lassen sich durch Umsetzung des Bis‐phenolporphyrinderivates (I) mit den entsprechenden Chinonen (II) unter photochemischen Bedingungen darstellen.
ChemInform Abstract: Regioselective Amination of 5β‐Ketocholanic Acids.
Authors: BELLINI A. M. , QUAGLIO M. P. , GUARNERI M. 
Published: May 2016

Abstract3‐Keto‐ (I), 3,12‐Diketo‐ (III), 3,7‐Diketo‐ (V) und 3,7,12‐Triketo‐5β‐ cholansäure (VII) lassen sich durch Einwirkung von Ammoniumacetat/Natriumcyanoborhydrid mit hoher Regioselektivität in die entsprechenden 3β‐Monoaminoverbindungen (II), (IV), (VI) und (VIII) überführen, während 7‐Keto‐ (IX), 12‐Keto‐ (X) und 7,12‐Diketo‐5β‐cholansäure (XI) unter den gleichen Reaktionsbedingungen unverändert bleiben.