bluuebunny/crossref_metadata_2025 huggingface dataset:
ChemInform Abstract: Studies on Polycyclic Azaarenes. Part 2. Synthesis of trans‐3,4‐Dihydroxy‐3,4‐dihydrobenz(c)acridine and trans‐8,9‐Dihydroxy‐8,9‐dihydrobenz(c)acridine.
Authors: RAMESH D. , KAR G. K. , CHATTERJEE B. G. , RAY J. K.
Published: May 2016

The benzacridine (V) is synthesized by cyclocondensation of the aldehyde (II) with the aniline (I).
ChemInform Abstract: s‐Triazolo(4,1‐a)(1,3)diazacycloalkanes. Part 4. Synthesis and Transformation of 2‐Aminothiocarbonyl‐s‐triazolo(4,3‐a)pyrimidine.
Authors: KREZHEL' I.
Published: May 2016

Reaction of the tetrahydropyrimidine (III) with thiosemicarbazide (II) gives the triazolopyrimidines (I) or (IV) depending on the reaction time.
ChemInform Abstract: Studies in the Series of Fused Benzazole Derivatives. Part 1. Synthesis of 6‐ and 5‐Substituted Benzimidazo(2,1‐b)quinazolin‐12‐ones.
Authors: POPOV I. I. , BOROSHKO S. L. , TERTOV B. A. , MAKAROV S. P. , SIMONOV A. M. , SIMKIN B. YA.
Published: May 2016

The benzimidazolesulfonic acids (I) are coupled with anthranilic acid (II) to give the anilino derivatives (III) or the benzimidazoquinazolines (IVa) and (IVb).
ChemInform Abstract: Electrophilic Substitution at Azomethine Carbon Atoms. Reaction of Aromatic Aldehyde Hydrazones with Trifluoroacetic Anhydride.
Authors: KAMITORI Y. , HOJO M. , MASUDA R. , FUJITANI T. , OHARA S. , YOKOYAMA T.
Published: May 2016

The aldehydes (II) are converted into the hydrazones (III) which react with trifluoroacetic anhydride (IV) to give the α‐keto hydrazones (V).
ChemInform Abstract: Unusual Formation of a 3,6‐Dioxa‐1‐azabicyclo(3.2.1)octane Derivative.
Authors: RAMSH S. M. , KHRABROVA E. S. , GINAK A. I.
Published: May 2016

Treatment of the aminooxazolinone (I) with benzylamine (II) and paraformaldehyde (III) does not give the expected aminomethylation product, but the bicyclic compound (IV) is formed instead as the result of a complex reaction sequence.
ChemInform Abstract: Reaction of 2,4,6‐Triphenylverdazyl with Trifluoromethylsulfonylethoxycarbonyldibromomethane.
Authors: TOMILENKO E. I. , OGOIKO P. I. , STANINETS V. I.
Published: May 2016

Coupling of triphenylverdazyl (I) with the sulfonyldibromoacetate (II) gives the ethoxalylleukoverdazyl (III), together with traces of the triazole carboxylate (IV).
ChemInform Abstract: Synthesis of 4‐Styryl‐2,3‐dihydro‐1H‐1,5‐benzodiazepin‐2‐ones.
Authors: SOLOMKO Z. F. , GAPONOV A. A. , AVRAMENKO V. I. , KHMEL' M. P.
Published: May 2016

The 4‐methyl‐2,3‐dihydro‐1H‐benzodiazepinones (I) react with the aromatic aldehydes (II), giving the 4‐styryl derivatives (III) exclusively.
ChemInform Abstract: Dimethylsilanone (Me2Si=O) Generation by Retroene Decomposition of Allyloxysilanes.
Authors: BARTON T. J. , BAIN S.
Published: May 2016

Gas‐phase thermolysis of the allyloxysilane (I) yields propene (II) and the title compound (III) by retroene decomposition; the latter undergoes trapping with (I) to give (IV) or trimerization to give (V).
ChemInform Abstract: Selective Formation of Alkyl Azides Using Trimethylsilyl Azide and Carbonyl Compounds.
Authors: NISHIYAMA K. , YAMAGUCHI T.
Published: May 2016

Reaction of the carbonyl compounds (I) with trimethylsilyl azide (II) in the presence of sodium azide and 15‐crown‐5 yields the α‐siloxy azides (III), whereas the analogous reaction catalyzed by tin(II) chloride or zinc chloride produces the gem‐diazides (IV).
ChemInform Abstract: Incorporation of Molecular Nitrogen into Amides and Imides by Use of Titanium‐Nitrogen Complexes.
Authors: MORI M. , UOZUMI Y. , SHIBASAKI M.
Published: May 2016

Molecular nitrogen is fixed under very mild conditions by a TiCl3‐Mg‐THF system to give the titanium nitrogen complex (IV).
ChemInform Abstract: Preparation, Properties, and Reactions of Metal‐Containing Heterocycles. Part 58. Cyclocotrimerization of Methylthioxophosphane with Alkynes.
Authors: LINDNER E. , AUCH K. , HILLER W. , FAWZI R.
Published: May 2016

Dichloromethylthioxophosphorane (II) reacts with (I) in the presence of activated Mg to give the three‐membered metallacycle (III) which is the first example of an η2‐thiophosphinito complex of manganese.
ChemInform Abstract: Dinuclear Formamidinato Complexes of Nickel and Palladium.
Authors: COTTON F. A. , MATUSZ M. , POLI R. , FENG X.
Published: May 2016

The neutral complexes (Ia) and (Ib) are prepared by reaction of NiBr2 or Pd3(OAc)6 with lithium N,N'‐diarylformamidinate in refluxing THF and isolated as their dihydrates from CH2Cl2/hexane.
ChemInform Abstract: Lewis Acid Promoted Carbon‐Carbon Bond Formation Between Bridging Isocyanides.
Authors: WU J. , FANWICK P. E. , KUBIAK C. P.
Published: May 2016

On addition of the Lewis acid (II) to the dinuclear Ir(0) complex (I) (P21, Z=2; prepared by Na/Hg reduction of the corresponding dication in benzene) the complex (III) is formed.
ChemInform Abstract: A Deoxymyoglobin Model with a Sterically Unhindered Axial Imidazole.
Authors: MOMENTEAU M. , SCHEIDT W. R. , EIGENBROT C. W. , REED C. A.
Published: May 2016

The title complex (I) is obtained by reaction of the corresponding known chloroiron(III)‐porphyrin with 1‐methylimidazole in toluene in the presence of amalgamated Zn pellets (no yield given).
ChemInform Abstract: A General Strategy for the Chemical Sequencing of Polysaccharides.
Authors: LEE C. K. , GRAY G. R.
Published: May 2016

The previously reported methods of total and selective reductive cleavage for sequencing a polysaccharide structure are combined in an integrated approach to the structural characterization of the Klebsiella K2 capsular polysaccharide.
ChemInform Abstract: Differences in the Conformational Behavior of the Potent and Selective, Tyr‐D‐Thr‐Gly‐Phe‐Leu‐Thr(OtBu) and of the inactive Tyr‐D‐Thr(OtBu)‐Gly‐Phe‐Leu‐Thr δ‐Opioid Ligands Evidenced by 1H NMR.
Authors: BELLENEY J. , GACEL G. , MAIGRET B. , FOURNIE‐ZALUSKI M. C. , ROQUES B. P.
Published: May 2016

The introduction of a bulky tert‐butyl group into the hydroxyl group of Thr6 of the known hexapeptide (Ia) (→ (Ib)) causes an increase in the selectivity for the δ opioid binding site whereas a tBuO substitutent in D‐Thr2 of (Ia) (→ (Ic)) effects complete loss of potency.
ChemInform Abstract: Alanine Containing Analogues of Cyclo(‐D‐Pro‐Phe‐Thr‐Lys(Z)‐Trp‐Phe‐). Conformationally Controlled Structure‐Activity‐Relationships.
Authors: KESSLER H. , GEMMECKER G. , HAUPT A. , KLEIN M. , WAGNER K. , WILL M.
Published: May 2016

The cyclic hexapeptide (I) contains the retro sequence of the amino acid residues 7‐11 of the peptide hormone somatostatin bridged by D‐proline; it is about 70 times more active than somatostatin.
ChemInform Abstract: Total Synthesis of (+)‐CC‐1065 and ent‐(‐)‐CC‐1065.
Authors: BOGER D. L. , COLEMAN R. S.
Published: May 2016

The racemic protected left‐hand segment (II) of the title compounds (V) is prepared in 9 steps from (I).
ChemInform Abstract: Syntheses of Antibacterial Peptides, Gramicidin S Analogs and Designed Amphiphilic Oligopeptides.
Authors: AOYAGI H. , ANDO S. , LEE S. , IZUMIYA N.
Published: May 2016

In order to clarify the relationship between antimicrobial activity and peptide structure, analogues (Ib) and (II) of gramicidin S (Ia) as well as cationic α‐helical model peptides such as (III) and (IV) are designed and synthesized by conventional methods in solution.
ChemInform Abstract: Synthesis of Pheromones. Part 3. Improved and Stereocontrolled Syntheses of Isomeric Mixtures of 8‐Dodecen‐1‐yl Acetates.
Authors: VINCZER P. , JUVANCZ Z. , NOVAK L. , SZANTAY C.
Published: May 2016

Two routes are developed for the preparation of isomeric mixtures and pure compounds of the (E)‐ and (Z)‐dodecenyl acetates (VI) and (VII), which are the active sex pheromones of many insect species.
ChemInform Abstract: Resolution of 1‐Methyl‐2‐propynylamine via Chromatographic Separation of Its Diastereomeric O‐Methylmandelic Amides.
Authors: NILSSON B. M. , HACKSELL U.
Published: May 2016

The racemic title compound (I) ‐ a key intermediate in the synthesis of the presynaptic muscarinic antagonist and postsynaptic muscarinic agonist (II) in certain rat brain regions ‐ is optically resolved with (R)‐O‐methylmandeloyl chloride to give the (R)‐ and (S)‐enantiomers of (I) with 99.6 and 99.2% e.e.
ChemInform Abstract: Electrical Breakdown Characteristics and Oxidation Properties of Partial and Two‐Step Wet‐Oxidation Techniques.
Authors: LI G. Q. , CHENG Y. C.
Published: May 2016

It is shown that the developed partial wet oxidation and the two‐step wet oxidation (oxidation in wet oxygen at 850 °C in both cases, followed by a second oxidation step at 1060 °C in dry and wet O2, resp.) yield improved dielectric breakdown characteristics of thin SiO2 films, and the density of defects is significant lower than in films prepared by the two‐step dry oxidation method.
ChemInform Abstract: Chemical Vapor Deposition of Aluminum Enhanced by Magnetron‐Plasma.
Authors: KATO T. , ITO T. , MAEDA M.
Published: May 2016

Al films are deposited on Si wafers at low temp. (50‐100 °C) using Al2Me6 as Al source in a magnetron‐plasma CVD system in which the plasma chemical reaction is locally confined by the magnetic field.
ChemInform Abstract: Growth and Characterization of Large Size, High Quality, InP Single Crystals.
Authors: MONBERG E. M. , GAULT W. A. , DOMINGUEZ F. , SIMCHOCK F. , CHU S. N. G. , STILES C. M.
Published: May 2016

Single‐crystal InP wafers grown by both the vertical gradient freeze (VGF) technique (described in detail) and the liquid encapsulated Czochralski (LEC) method are studied by transmission X‐ray topography, transmission cathodoluminescence, and defect revealing etching.
ChemInform Abstract: Lipophilic Crown Compounds ‐ Selective Extractants for Metal Ions. Part 2
Authors: GLOE K. , MUEHL P. + , BEGER J.
Published: May 2016

Review: (180 refs.
ChemInform Abstract: Electrodeposition of Lead on Copper in Acidic Ammonium Acetate Solutions.
Authors: BARRADAS R. G. , HETTGEN I. G. , GIRGIS M.
Published: May 2016

Lead deposits on copper are impure and exhibit a tendency to form dendrites when obtained from aqueous acidic ammonium acetate solutions containing either Pb(NO3)2 or Pb(OAc)2.
ChemInform Abstract: Stereochemical Non‐Rigidity in Rhodium‐Triruthenium Clusters (I)‐(III) Studied by NMR Spectroscopy
Authors: LINDSELL W. E. , WALKER N. M. , BOYD A. S. F.
Published: May 2016

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ChemInform Abstract: Retention Indices and Basicity of N1N1‐Dimethyl‐N2‐phenylformamidines. ortho‐Substituent Effect.
Authors: DOLECKA E. , RACZYNSKA E. D. , DRAPALA T.
Published: May 2016

In contrast to (Ia), which show E structure, an intramolecular H bond stabilizes the Z structure in (Ib) (20% in the equilibrium mixture).
ChemInform Abstract: Stereoselective Aldol Reactions with (R)‐ and (S)‐2‐Hydroxy‐1,2,2‐triphenylethyl Acetate and Related Glycol Monoacetates.
Authors: DEVANT R. , MAHLER U. , BRAUN M.
Published: May 2016

The (R)‐mandelate (I) is converted to the chiral glycol monoacetate (V), whose magnesium enolate undergoes stereoselective aldol addition to give the adducts (VII) and minor amounts of the diastereomers (VIII).
ChemInform Abstract: Photoinduced Molecular Transformations. Part 87. Ring Expansion Through (2 + 2) Photocycloaddition‐β‐Scission Sequences; Synthesis of Benzohomotropones from 1‐ and 2‐Naphthols and Methyl Acrylate.
Authors: SUGINOME H. , ITOH M. , KOBAYASHI K.
Published: May 2016

Photolysis of the tricyclododecatetraenols (III) in the presence of HgO‐I2/benzene gives the ring expansion product (IV) which is converted to the compound (Va) when treated with Py or with silica gel.
ChemInform Abstract: Photochemistry of 2,2‐Dimethyl‐2H‐furo(3,4‐b)pyran‐4,7(3H,5H)‐dione.
Authors: LAU S. , MARGARETHA P.
Published: May 2016

Photoextrusion of (II) from (I) under irradiation in tBuOH leads to the formation of (III) (yield 13%); the yield of the adduct is enhanced by the addition of excess (II).
ChemInform Abstract: Synthesis of Dichloroketene Acetals Under Phase‐Transfer Catalysis Conditions and Their Reactions with Sulfur Electrophiles.
Authors: GUSEVA S. A. , MIRSKOVA A. N. , LEVKOVSKAYA G. G. , KALIKHMAN I. D. , VORONKOV M. G.
Published: May 2016

A novel, reliable and optimized method of preparation of the title compounds (II) is described.
ChemInform Abstract: A Convenient General Access to Methyl 2‐Chloro‐2‐cyclopropylideneacetates, Reactive Michael Acceptors and Cycloaddends.
Authors: LIESE T. , TEICHMANN S. , DE MEIJERE A.
Published: May 2016

The 1‐chloro‐1‐(trichlorovinyl)cyclopropanes (I) are converted to the orthoacetates (III) which are hydrolyzed by acid, yielding the esters (IV).
ChemInform Abstract: Synthesis and Circular Dichroism of 5‐ and 6‐Halobicyclo(2.2.1)hept‐5‐en‐2‐ones: Tests for Dekker′s Quantitative Chirality Rule.
Authors: LETTIERI A. , CARRUPT P.‐A. , VOGEL P.
Published: May 2016

The optically active O‐acetylcyanohydrin (+)‐(I) is prepared by a Diels‐Alder process, followed by resolution of the stereoisomeric cycloadducts via formation of brucine complexes.
ChemInform Abstract: Highly Selective Aromatic Chlorinations. Part 2. The Chlorination of Substituted Phenols, Anisoles, Anilines, and Related Compounds with N‐Chloroamines in Acidic Solution.
Authors: SMITH J. R. L. , MCKEER L. C. , TAYLOR J. M.
Published: May 2016

The laboratory‐scale chlorination of the phenols and anisoles (I) with N‐chloromorpholine proceeds efficiently and selectively at the 4‐position to give the derivatives (II) as main products.
ChemInform Abstract: Convenient Synthesis of Mixed Anhydrides by the Ozonolysis of Oxazoles.
Authors: KASHIMA C. , HIBI S. , HARADA K. , OMOTE Y.
Published: May 2016

Ozonolysis of various oxazoles such as (I) yields quantitatively the mixed anhydrides (II), which undergo decomposition by ethanol (III) or methylamine (VIII) to give the acid derivatives (IV)‐(VII) or (IX) and (X).
ChemInform Abstract: Reaction of 2‐Arylmethylene‐3‐methyl‐4‐nitro‐3‐thiolene 1,1‐Dioxides with Amines.
Authors: VASIL'EVA M. V. , BERESTOVITSKAYA V. M. , BERKOVA G. A. , PEREKALIN V. V.
Published: May 2016

The reactions of the compounds (I) with the primary amines (II) or with secondary amines ‐ benzimidazole (IV), piperidine (VIIa), morpholine (VIIb) ‐ proceed regiospecifically to afford the 1,4‐adducts (III), (VI) or (VIII).
ChemInform Abstract: Synthesis and Antimicrobial Activity of Substituted 5‐Hydroxynaphtho‐(1,2‐b)thiophene and 4‐Hydroxybenzo(2,1‐b:3,4‐b′)dithiophenes.
Authors: FEDOROVA I. N. , SHVEDOV V. I. , SILIN V. A. , BAKLANOVA O. B. , FILITIS L. N. , ALEKSEEVA L. M.
Published: May 2016

Treatment of the thienylacetic(propionic) acids (I) and (V) with acetic anhydride (II) and subsequent hydrolysis give the naphthothiophenes (IV) or the benzodithiophene (VI).
ChemInform Abstract: ((6,7‐Dichlorobenzo(b)thien‐5‐yl)oxy)acetic Acids and 1,1‐Dioxides. Part 1. A Structurally Novel Class of Diuretics with Hypotensive Activity.
Authors: ONG H. H. , CALDWELL S. R. , PROFITT J. A. , TEGELER J. J. , AGNEW M. N. , WILKER J. C. , RESS R. J. , KITZEN J. M.
Published: May 2016

The benzo(b)thiophenes (II) are prepared by cyclization of the α‐(phenylthio)carbonyl compounds (I).
ChemInform Abstract: Asymmetric Catalysis. Part 38. Enantioselective Hydrosilylation and Hydrogenation of Alkaloid Precursors.
Authors: BRUNNER H. , KUERZINGER A. + , MAHBOOBI S. , WIEGREBE W.
Published: May 2016

Enantioselective hydrosilylation of the dihydropyrroles (I) in the presence of catalysts derived from a rhodium complex and optically active phosphine gives the N‐silyl compounds (III).
ChemInform Abstract: Synthesis and Psychostimulating Activity of Syndocarb Analogs.
Authors: OLOVYANISHNIKOVA Z. A. , PARSHIN V. A. , OGORODNIKOVA V. V. , MASHKOVSKII M. D. , YASHUNSKII V. G.
Published: May 2016

The derivatives (IIIb) of sydnocarb (IIIa), substituted in the phenylaminocarbonyl moiety, are prepared from the nitrosoaminoacetonitrile (I) and the corresponding aryl isocyanates (II).
ChemInform Abstract: Cyclovinylogues of Guanethidine.
Authors: VALENTI P. , RAMPA A. , CARRARA M. , ZAMPIRON S. , GIUSTI P. , CIMA L.
Published: May 2016

Condensation reaction of the bromomethylbenzonitrile (I) with heptamethylenimine (II) gives the corresponding derivative (III) which is reduced to form the aminomethyl compound (IV).
ChemInform Abstract: Intramolecular Cycloaddition Reactions with Azomethine Ylides: Synthesis and NMR Investigations of Some Macrolide‐Type Paracyclophanes.
Authors: EBERBACH W. , HEINZE I. , KNOLL K. , FRITZ H. , BORLE F.
Published: May 2016

The cis‐(IV) and trans‐(V) aziridines which are prepared starting from the readily available ester (I) undergo thermal intramolecular cycloadditions to give the diastereomeric paracyclophanes (VI)‐(IX).
ChemInform Abstract: Complexes of Ligands Providing Endogenous Bridges. Part 5. Solution Studies on a Novel ′3 + 3′ Hexamine Schiff‐Base Macrocyclic Complex of Lanthanum.
Authors: FENTON D. E. , KITCHEN S. J. , SPENCER C. M. , TAMBURINI S. , VIGATO P. A.
Published: May 2016

The template reaction of the pyridine (I) with the amine (II) in the presence of lanthanum nitrate (III) gives the product (IV) (no yield given).
ChemInform Abstract: Synthesis of Di‐ and Tetranuclear p‐Cymene‐Osmium Hydride Complexes; Characterization by 1H(187Os) Reverse INEPT Two‐Dimensional NMR Spectroscopy.
Authors: CABEZA J. A. , MANN B. E. , MAITLIS P. M. , BREVARD C.
Published: May 2016

The hydride‐bridged binuclear (II) and (IV) and tetranuclear Os complexes (V) are prepared by refluxing the μ‐chloro and μ‐hydroxo parent compounds (I) and (III) in isopropanol as shown in the scheme.
ChemInform Abstract: Use of Diethylaminosulfur Trifluoride (DAST) in the Preparation of Synthons of Carbocyclic Nucleosides.
Authors: BIGGADIKE K. , BORTHWICK A. D. , EVANS D. , EXALL A. M. , KIRK B. E. , ROBERTS S. M. , STEPHENSON L. , YOUDS P.
Published: May 2016

The title compound (II) converts the protected pseudo sugars (Ia), (Ib) or (VIII) (available from the compound (VII)) into the products indicated in the scheme.
ChemInform Abstract: Synthesis and Spectral Properties of Chemically and Stereochemically Homogeneous Sphingomyelin and Its Analogues.
Authors: BRUZIK K. S.
Published: May 2016

The phosphodiester (II) which is obtained from the ceramide‐derived D‐erythro compound (I) in a one‐pot reaction is deprotected to give the D‐erythro‐sphingomyelin (IIIa) (70% from ceramide); the L‐threo‐isomer (IIIb) is analogously obtained starting from the L‐threo isomer of (I).
ChemInform Abstract: Piezoelectric Quartz Crystal Detection of Benzene Vapor Using Chemically Modified Cyclodextrins.
Authors: LAI C. S. I. , MOODY G. J. , THOMAS J. D. R. , MULLIGAN D. C. , STODDART J. F. , ZARZYCKI R.
Published: May 2016

The modified cyclodextrins (Ia) and (Ib) are obtained in DMF from α‐cyclodextrin and the corresponding halide in the presence of base yielding 97% and 61%, respectively.
ChemInform Abstract: K5Nb9W2O31: A New Tetragonal‐Tungsten‐Bronze‐Related Structure, Deduced from HREM Images.
Authors: SUNDBERG M. , LUNDBERG M.
Published: May 2016

Samples of K7Nb15W2O47 and KxNb4+xW7‐xO31 (x = 1, 2, 3, 4, 5) are prepared by heating appropriate amounts of KNbO3, Nb2O5, and WO3 (sealed Pt tubes, 1350 K, 5 d).
ChemInform Abstract: Hexagonal LiMoO2: A Close‐Packed Layered Structure with Infinite Mo‐Mo‐Bonded Sheets.
Authors: ALEANDRI L. E. , MCCARLEY R. E.
Published: May 2016

Reaction of Li2MoO4 with Mo metal at 900 °C (21 d) yields the new title compound.
ChemInform Abstract: FTIR Measurements of Iron Oxides on Low Alloy Steel.
Authors: JASINSKI R. , IOB A.
Published: May 2016

It is demonstrated that reflectance FTIR yields considerable information on the composition of inorganic scales on corroded iron surfaces and can be used to characterize oxide films of up to 1200 Å thickness.
ChemInform Abstract: A Mixed‐Alkali Effect on the Ionic Conductivity in Mono‐Phasic Na2xK2(1‐x)ZnGeO4 Materials
Authors: GRINS J.
Published: May 2016

(0 ≤ x ≤ 0.9) is observed by impedance measurements as a function of composition and temperature.
ChemInform Abstract: Crystal Growth of Solid Solutions of the Group IV‐VI Transition Metal Monocarbides from Molten Aluminum.
Authors: LOENNBERG B. + , LUNDSTROEM T. +
Published: May 2016

It is demonstrated that solid solutions of TiC, TaC, NbC, and WC can be grown from Al melts in alumina crucibles at temp. above 1350 °C. The crystal size increases with increasing soaking temperature.
ChemInform Abstract: SE2Ta2O7Cl2 (SE: Pr, Nd), a New Structure Type with Ta2O7 Building Groups.
Authors: SCHAFFRATH U. , GRUEHN R.
Published: May 2016

Violet powders of the isotypic title compounds are obtained from stoichiometric mixtures of SEOCl and Ta2O5 in evacuated quartz glass ampoules (Nd: 950 °C, 7 d; Pr: 850 °C, 6 d).
ChemInform Abstract: Electrochemical Reduction and Oxidation in Noncoordinating and Coordinating Solvents of Two Closely Related Binuclear Nickel(II) Complexes Containing Either Sulfur or Oxygen Endogenous Bridging Centers.
Authors: BOND A. M. , HAGA M. , CREECE I. S. , ROBSON R. , WILSON J. C.
Published: May 2016

Replacement of oxygen by sulfur as the endogenous bridging center of the nickel binuclear complexes (V) leads to remarkable differences in their solution and redox chemistry.
ChemInform Abstract: Metallic Nickel Assisted Room‐Temperature Generation and Diels‐Alder Chemistry of o‐Xylylene Intermediates.
Authors: INABA S. , WEHMEYER R. M. , FORKNER M. W. , RIEKE R. D.
Published: May 2016

o‐Di(bromomethyl)benzene (I) is debrominated with metallic nickel, generated by reduction of nickel iodide with lithium in the presence of naphthalene, to form the intermediate diene (II) which undergoes cycloaddition reactions with alkenes such as (III).
ChemInform Abstract: Synthesis of α‐Methylenecyclobutanones. The First Preparation of Norsarkomycin Methyl Ester.
Authors: VIDAL J. , HUET F.
Published: May 2016

The aldol condensation of the cyclobutanone (I) with formaldehyde (II) yields the hydroxymethyl compound (III).
ChemInform Abstract: Reactions of Organic Anions. Part 147. Simple and General Synthesis of Hydroxy‐ and Methoxyindoles via Vicarious Nucleophilic Substitution of Hydrogen.
Authors: MAKOSZA M. , DANIKIEWICZ W. , WOJCIECHOWSKI K.
Published: May 2016

The nitrophenol ethers (I) or (V) undergo vicarious nucleophilic substitution of hydrogen to give the methoxy‐ or benzyloxy‐substituted acetonitriles (III) or (VI).
ChemInform Abstract: Design of a New Chiral Host Compound, trans‐4,5‐Bis(hydroxydiphenylmethyl)‐2,2‐dimethyl‐1,3‐dioxacyclopentane. An Effective Optical Resolution of Bicyclic Enones Through Host‐Guest Complex Formation.
Authors: TODA F. , TANAKA K.
Published: May 2016

Diethyl tartrate (I) is converted to the bis(diarylhydroxymethyl)dioxoles (V) by consecutive reaction with the dimethoxypropane (II) and the Grignard compounds (IV).
ChemInform Abstract: (4 + 2) Cycloadditions of α,β‐Unsaturated Hydrazones to Pyridine‐2,3‐dicarboximides via 1‐(Dimethylamino)‐1,4‐dihydropyridine Derivatives.
Authors: WALDNER A.
Published: May 2016

The cycloaddition of α,β‐unsaturated hydrazones such as (I) or (V) with the maleimide (II) affords 1,4‐dihydropyridines, e.g. (III), which after treatment with an acid yield highly substituted pyridinedicarboximide derivatives such as (IV) or (VI).
ChemInform Abstract: 1‐Amino‐Substituted 4‐Methyl‐5H‐pyrido(4,3‐b)indoles (γ‐Carbolines) as Tricyclic Analogues of Ellipticines: A New Class of Antineoplastic Agents.
Authors: BISAGNI E. , NGUYEN CHI HUNG NGUYEN CHI HUNG , PIERRE A. , PEPIN O. , DE COINTET P. , GROS P.
Published: May 2016

Fischer indole cyclization of the hydrazone (I) and subsequent aromatization produce the pyridoindolone (II).
ChemInform Abstract: Fluorodiazadiphosphetidines. Part 20. The Dehydrofluorination of Betainic, and the Hydrofluorination of Covalent Hydrazinosubstituted Fluorodiazadiphosphetidines.
Authors: GALLE K. , UTVARY K.
Published: May 2016

In the presence of Et3N·PF5, the betaine (I) loses one molecule of HF to yield (II).
ChemInform Abstract: Synthetic Analogue Approach to Metallobleomycins. Part 3. Synthesis, Crystal and Solution Structures, and Redox Properties of Bis(N‐(2‐(4‐imidazolyl)ethyl)pyridine‐2‐carboxamido)cobalt(III) Perchlorate Hydrate.
Authors: DELANY K. , ARORA S. K. , MASCHARAK P. K.
Published: May 2016

The title complex (I) is synthesized via aerobic oxidation of a mixture of Co(II) acetate and the peptide ligand N‐(2‐(4‐imidazolyl)ethyl)pyridine‐2‐carboxamide which resembles part of the metal‐chelating portion of the antitumor drugs bleomycins.
ChemInform Abstract: Acetylenic Cholesteryl Derivatives as Irreversible Inhibitors of Ecdysone Biosynthesis.
Authors: BURGER A. , COLOBERT F. , HETRU C. , LUU B.
Published: May 2016

The acetylenic compounds (IIa), (V) and (IX) are synthesized as shown.
ChemInform Abstract: Synthetic Studies on Gangliosides. Part 8. Syntheses of (α2‐9) and (α2‐8) Linked Dineuraminyl Saccharides by Use of 2β‐Bromo‐3β‐hydroxy‐4,7,8,9‐tetra‐O‐acetyl‐N‐acetylneuraminic Acid Methyl Ester.
Authors: OKAMOTO K. , KONDO T. , GOTO T.
Published: May 2016

Condensation of the bromo ester (I) with the glycosyl acceptor (II) having a free hydroxyl group at the 8‐position yields the α‐ and β‐2,8‐linked disaccharides (IIIa) and (IVa), from which the deprotected glycosides (IIIb) and (IVb) are available.
ChemInform Abstract: Analysis of Polysilicon Diffusion Sources.
Authors: PROBST V. , BOEHM H. J. + , SCHABER H. , OPPOLZER H. , WEITZEL I.
Published: May 2016

Based on a detailed analysis of poly‐Si diffusion sources, parameters for process modeling are deduced.
ChemInform Abstract: Synthetic Techniques and Characterization Methods Applied on Non‐Oxidic Refractory Transition Metal Compounds
Authors: RUNDQVIST S.
Published: May 2016

Review: (examples of a 30 year period of synthesis and characterization research at the Univ.
ChemInform Abstract: Strong Metal‐Support Interaction (SMSI) in Ni/Nb2O5 and Ni/TiO2 Catalysts.
Authors: SANKAR G. , VASUDEVAN S. , RAO C. N. R.
Published: May 2016

EXAFS results obtained for the title catalysts reduced at 773 K show the presence of two Ni‐Nb (Ni‐Ti, resp.) distances characteristic of the SMSI state.
ChemInform Abstract: Novel Mixed Hexahalotellurates(IV)
Authors: SCHOENHERR T. +
Published: May 2016

, (IIIa) and (IIIb), are prepared as shown in the scheme (no yields given).
ChemInform Abstract: Preparation of Crystalline Tin(IV) Molybdate Having an Unexpected Low Density.
Authors: BUITEN J.
Published: May 2016

A compound SnO2·2 MoO3 of Sn(MoO4)2 which is stable at temp. < 500 °C and which is not known in the literature can be obtained as shown in the scheme.
ChemInform Abstract: Structural and Spectroscopic Studies of Mo2Cl4(PR3)4 Compounds with Phosphines of Varied Basicity.
Authors: COTTON F. A. , DANIELS L. M. , POWELL G. L. , KAHAIAN A. J. , SMITH T. J. , FIORE VOGEL E.
Published: May 2016

The influence of the π acidity of the phosphine ligands in the compounds (I) on the strength of the Mo‐Mo quadruple bond is studies on the basis of structure determinations ((Ia): space group I43m, Z=2; (Ib): C2/c, Z=4; (Ic): P1, Z=2) and IR and electronic spectroscopic investigations.
ChemInform Abstract: Reaction of Benzeneseleninyl Chloride with Olefins in the Presence of a Lewis Acid. A Novel One‐Step Vinylic Chlorination.
Authors: KAMIGATA N. , SATOH T. , YOSHIDA M.
Published: May 2016

Halogenation of the olefins (I) using the system AlX3(X)/ benzeneseleninyl chloride yields the vinylic halogenation products (III).
ChemInform Abstract: Oxidative Bisdecarboxylation of α‐Alkoxymalonic Acids with Cerium(IV).
Authors: SALOMON R. G. , ROY S. , SALOMON M. F.
Published: May 2016

Vinylcyclohexane (I) reacts with diethyl oxomalonate (II) to give the spirocyclic furan (III) which is oxidized with ceric ammonium nitrate (CAN), forming the spirolactone (IV).
ChemInform Abstract: Photodimerization of Aryl β‐(2‐Furyl)vinyl Ketones.
Authors: DUREJA P. , SHARMA S. , WALIA S. , MUKERJEE S. K.
Published: May 2016

Irradiation of the ketones (I) in MeOH causes dimerization to give the products (II).
ChemInform Abstract: Synthesis, Complexation Study and Reactivity of Anellated Thiophenic NADH Models.
Authors: CAZIN J. , TREFOUEL T. , DUPAS G. , BOURGUIGNON J. , QUEGUINER G.
Published: May 2016

The title compounds (IV) and (VII) are synthesized as potential NADH models.
ChemInform Abstract: Transition Metal Complexes with Sulfur Ligands. Part 34. (FeII(CO)2)‐Fragments as Templates and Protecting Groups: Synthesis of Macrocyclic Thioethers and Monoalkylation of Dithiols. X‐Ray Analysis of Dibenzo‐18‐crown‐S6, a Plane “Crown”‐Thioether.
Authors: SELLMANN D. , FRANK P. , KNOCH F.
Published: May 2016

The macrocyclic thioethers (IV) and (VI) are synthesized from the iron carbonyl complexes (I) or (V) and the dibromoethyl sulfide (II).
ChemInform Abstract: Synthesis and Structures of Porphyrin Complexes of Scandium: ClSc(TTP)·2(C10H7Cl) and O(Sc(TTP))2·6 THF.
Authors: SEWCHOK M. G. , HAUSHALTER R. C. , MEROLA J. S.
Published: May 2016

The monomeric title complex (I) is easily prepared by refluxing the free base porphyrin with anhydrous ScCl3 in 1‐chloronaphthalene in a N2 stream, it crystallizes in P21/c with Z=4.
ChemInform Abstract: Intramolecular Coupling of η2‐Iminoacyl Groups at Group 4 Metal Centers: A Kinetic Study of the Carbon‐Carbon Double‐Bond‐Forming Reaction.
Authors: DURFEE L. D. , MCMULLEN A. K. , ROTHWELL I. P.
Published: May 2016

The intramolecular coupling of (I) on thermolysis to produce the enediamide derivatives (II) is metal‐depending with the rate decreasing in the order Ti > Zr > Hf.
ChemInform Abstract: Reactions of Nb2Cl6(SMe2)3 and Ta2Cl6(SMe2)3 with Compounds Containing N‐N Single Bonds.
Authors: CANICH J. A. M. , COTTON F. A. , FALVELLO L. R. , DURAJ S. A.
Published: May 2016

The Ta title compound (I) reacts with the hydrazine (II) to give the μ‐imido‐Ta(IV),Ta(IV) product (III).
ChemInform Abstract: Reactions of Coordinated Ligands. Part 4. Cyclotriphosphine Complexes (RP)3(Cr(CO)5)m (m = 1, 2, 3) by Dehalogenation of RPBr2Cr(CO)5 with Magnesium.
Authors: HINKE A.‐M. , HINKE A. , KUCHEN W.
Published: May 2016

The phosphine‐Cr complexes (III) prepared according to the scheme are dehalogenated with Mg to give the cyclotriphosphine complexes (IV) with m depending on the bulkiness of R. When dissolved in THF, the binuclear complexes (IVb) are gradually converted into analogous mononuclear compounds from which only 1,2,3‐tricyclohexyl‐(pentacarbonylchromium)cyclotriphosphine is isolated (yield 62%).
ChemInform Abstract: Reactions of Coordinated Dinitrogen. Part 20. Oxygen‐, Sulfur‐, and Nitrogen‐Containing Molybdenum Complexes That Bind Dinitrogen.
Authors: GEORGE T. A. , JACKSON M. A.
Published: May 2016

The sodium amalgam reduction of the trichloro‐Mo(III) complexes (I) containing tridentate ligands in the presence of tert. phosphines L (II) under N2 leads to the preparation of the trans‐bis(dinitrogen)‐Mo(0) complexes (IV).
ChemInform Abstract: Cluster Synthesis via Aggregation: Synthesis and Solution and Solid‐State Characterization of Sulfur‐Capped Group 6 Metal Carbonyl Clusters.
Authors: DARENSBOURG D. J. , ZALEWSKI D. J. , SANCHEZ K. M. , DELORD T.
Published: May 2016

The trinuclear clusters (I) are prepared by a stepwise aggregation of M(CO)5 fragments about a sulfur atom template, with subsequent loss of three CO ligands concomitant with the formation of three metal‐metal bonds as shown for the trichromium cluster (Ia).
ChemInform Abstract: Autoxidation Mechanism of Fe2(ttha)2‐ and Studies of (Me2Dabco) (Fe2O(ttha))·6 H2O.
Authors: SHEPHERD R. E. , MYSER T. K. , ELLIOTT M. G.
Published: May 2016

From kinetic results the mechanism of the reaction of O2 with the title complex (I) is discussed in terms of an equilibrium binding of O2 forming an Fe(III)O2‐Fe(II) intermediate in an open configuration followed by ring closure of the remaining Fe(II) site with the Fe(III)‐O2‐ neighboring site.
ChemInform Abstract: Interaction Between FeRu Bimetallic Carbonyl Clusters and Oxide Supports. Part 5. Fe2Ru(CO)12 on Hydrated Silica.
Authors: DOBOS S. , BOESZOERMENYI I. + , MINK J. , GUCZI L.
Published: May 2016

Thermal behavior of the bimetallic title complex on a silica support is studied by FT‐IR spectroscopy.
ChemInform Abstract: Synthesis and Characterization of Platinum Group Metal Complexes of Diphenylphosphinoacetic Acid.
Authors: TAQUI KHAN M. M. , NAZEERUDDIN MD. K. , BAJAJ H. C.
Published: May 2016

Reaction of an excess of the title ligand (II) with the Rh(I) complex (I) results in the formation of the octahedral Rh(III) fac‐complex (III) by oxidative addition.
ChemInform Abstract: Synthesis and Physicochemical Studies of Some Dicyclopentadiene Alkoxo Derivatives of Rhodium(I).
Authors: AGARWAL S. K.
Published: May 2016

The chloride‐bridged dicyclopentadiene‐Rh(I) dimer (I) reacts with KOMe (II) or with NaOH in the presence of trifluoroethanol (IV) to give the binuclear alkoxo‐bridged complexes (III).
ChemInform Abstract: O,O‐Alkylene Dithiophosphates of Palladium(II) and Their Adducts with Triphenylphosphine.
Authors: BHASIN C. P. , SRIVASTAVA G. , MEHROTRA R. C.
Published: May 2016

The diamagnetic square‐planar Pd complexes (III) are prepared as shown and characterized by 1H and 31P NMR, IR and electronic spectra, and magnetic data.
ChemInform Abstract: A Model for Triterpene Side‐Chain Synthesis. Part 2.
Authors: WANG W.‐Y. , REUSCH W.
Published: May 2016

SeO2 oxidation of the Wittig product (I) followed by PDC treatment yields the isomeric Z‐ and E‐enones (IV) and (V) in the ratio 3:1.
ChemInform Abstract: A New and Simple Synthesis of (+)‐ and (‐)‐threo‐Ephedrine.
Authors: MARCO J. L.
Published: May 2016

The starting compound (I) for the synthesis of the title compounds (VII) and (VIII) is converted to a mixture of the diastereomers (VIa), (VIb), (VIc) + (VId) (not separated); selective hydrogenation of (VIa) or (VIb) then provides the target compounds (VII), (VIII).
ChemInform Abstract: New Electrolytic Etchant for Dislocation Etch Pits in Ni3Al Single Crystals.
Authors: QIN W. F. , CHOU Y. T.
Published: May 2016

The developed etch‐pit technique is demonstrated to reveal both aged and fresh dislocations in Ni3Al single crystals.
ChemInform Abstract: The Compounds KAs4O6X (X: Cl, Br, I) and NH4As4O6X (X: Br, I): Hydrothermal Syntheses and Structure Determinations.
Authors: PERTLIK F.
Published: May 2016

The title compounds are synthesized from cubic As2O3 and KX or NH4X (X: Cl, Br, I), resp., in an aqueous saturated solution of KOAc or NH3 under hydrothermal conditions (500 K, saturation vapor pressure, 5 d; no yields given).
ChemInform Abstract: Novel Chalcogenide Halides of Molybdenum and Tungsten.
Authors: VOLKOV S. V. , KOLESNICHENKO V. L. , TIMOSHCHENKO N. I.
Published: May 2016

The reactions of Mo(CO)6 or W(CO)6 with S2Br2 at 90‐110 °C afford the novel molybdenum thiobromide (I) and the known tungsten thiobromide (II), respectively.
ChemInform Abstract: Synthesis and Characterization of the Higher Fluorides of Silver and Alkali Metals.
Authors: POPOV A. I. , KISELEV YU. M.
Published: May 2016

The fluorination of AgCl by XeF2 is investigated.
ChemInform Abstract: Synthesis and Conformational Analysis of Phosphorus‐Derivatized No‐Base Analogues of 3′,5′‐Cyclic Nucleotides.
Authors: HERMANS R. J. M. , BUCK H. M.
Published: May 2016

Detailed conformational analyses of the readily synthesized title compounds (I) and (II) are carried out.
ChemInform Abstract: New Chirons for the Synthesis of Fluorine‐Containing Compounds. An Efficient Entrance to α‐Mono‐ and Polyfluoro Ketones Having a Chiral α′‐Sulfinyl Substituent.
Authors: BRAVO P. , PIOVOSI E. , RESNATI G. , DE MUNARI S.
Published: May 2016

Condensation of the chiral sulfoxides (I) with the esters (II) yields the poly‐ and monofluorocarbonyl compounds (III) possessing a chiral sulfinyl substituent ((IIIa) excists as a 65:35 mixture of the keto form and its hydrate; in the case of (IIIb) separable mixtures of diastereomers are obtained).
ChemInform Abstract: Simple, General, and Mild Synthetic Methodology for the Formation of Fluoroorganoboranes.
Authors: BIR G. , SCHACHT W. , KAUFMANN D.
Published: May 2016

Reaction of the chloroorganoboranes (I) or (III) with LiF in Et2O gives the corresponding fluorinated compounds (II) and (IV).
ChemInform Abstract: Boron Compounds. Part 79. Substituted 2,5‐Dihydro‐1,2,5‐oxasilaboroles. Preparation, Complexations, and Ring‐Opening.
Authors: KOESTER R. + , SEIDEL G. , BOESE R. , WRACKMEYER B.
Published: May 2016

The two dihydrooxasilaboroles (IVa) and (IVb) are prepared according to the scheme.
ChemInform Abstract: Preparation and Structural Characterization of Dicarbonylrhodium(I) Complexes of 8‐Azaguanine and Allopurinol Derivatives.
Authors: SHELDRICK W. S. , GUENTHER B. +
Published: May 2016

Reaction of the dimeric Rh(I) complexes (I) with allopurinol, 9‐methylallopurinol, and 8‐azaguanine L (II) at temp. of +3, ‐35, and +75 °C, resp., yields the complexes (III).
ChemInform Abstract: Synthesis, Characterization and Antitumor Activity of a Series of N‐Substituted Iminodiacetato(diammine)platinum(II) Complexes.
Authors: KHOKHAR A. R. , LUMETTA G. J. , NEWMAN R. A. , DORAN S. L.
Published: May 2016

The water‐soluble N‐substituted title complexes (III) are synthesized according to the scheme and characterized by measurements of physical properties (conductivity and pH) and spectroscopic techniques (IR, 1H, 13C(1H) NMR).
ChemInform Abstract: IR Spectra of HNF2, NF3, PF3, and PCl3 and Complexes with HF in Solid Argon.
Authors: LASCOLA R. , WITHNALL R. , ANDREWS L.
Published: May 2016

For the (HNF2)2 dimer, observed in HNF2/Ar solid mixtures at higher difluoramine concentration, an asym.
ChemInform Abstract: Role of Particle Substructure in the Sintering of Monosized Titania.
Authors: EDELSON L. H. , GLAESER A. M.
Published: May 2016

Monosized TiO2 particles of ∼ 0.35 μm diameter, prepared by controlled hydrolysis of titanium tetraethoxide in EtOH are found to be porous agglomerates of ∼ 6‐nm particles.
ChemInform Abstract: Copper(I) Luminescence in Nasicon Type Zirconium Phosphates.
Authors: LE POLLES G. , PARENT C. , OLAZCUAGA R. , LE FLEM G. , HAGENMULLER P.
Published: May 2016

The emission and excitation spectra of Na1‐xCuxZr2(PO4)3 (0 < x ≤ 1) and H0.5Cu0.5Zr2(PO4)3 recorded at 6, 90, and 300 K show the luminescence of Cu+.
ChemInform Abstract: The Ionic Conductivity of Cuprous Sulfate
Authors: DISSANAYAKE M. A. K. L. , BANDARA H. M. N.
Published: May 2016

has not been reported previously and is found to be 5.6·10‐4 (ω cm)‐1 at 27 °C (complex impedance measurements).
ChemInform Abstract: Preparation and Characterization of Chlorodifluorosulfur(IV) Hexafluoroarsenate.
Authors: ALAM K. , SHREEVE J. M.
Published: May 2016

The title compound (III) is characterized by 19F NMR, IR, and MS and its ionic nature is confirmed.
ChemInform Abstract: Chemically Mediated Fluorescence Yield Switching in Nitroxide‐Fluorophore Adducts: Optical Sensors of Radical/Redox Reactions.
Authors: BLOUGH N. V. , SIMPSON D. J.
Published: May 2016

While the absorption and emission energies of the paramagnetic compounds (Ia), (IIa), and (IIc) as compared to their diamagnetic analogues (Ib), (Ic), (IIb), and (IId) are unaffected by the presence of the nitroxyl radical substituent(s), the fluorescence quantum yields of the paramagnetic derivatives (Ia), (IIa), and (IIc) are 2.9‐ to 60‐fold lower than those of the corresponding diamagnetic derivatives (Ib), (Ic), (IIb), and (IId), respectively.
ChemInform Abstract: IR Vibrational Circular Dichroism in the Amide III Spectral Region of Peptides.
Authors: ROBERTS G. M. , LEE O. , CALIENNI J. , DIEM M.
Published: May 2016

The first observation of VCD in the amide III vibration is reported in L‐Ala‐L‐Ala and L‐Ala‐D‐Ala; amide I' and II' spectral data for these molecules are presented as well.
ChemInform Abstract: Formation, Reactivity, and Proposed Structures of Gas‐Phase Triosmium Cluster Ions: H2Os3(CO)+ 10 and Its Dimers, Trimers, and Fragments.
Authors: MULLEN S. L. , MARSHALL A. G.
Published: May 2016

Electron ionization of H2Os3(CO)10 vapor in an FT/ICR mass spectrometer produces abundant H2Os3(CO)+ x ions, with 0 ≤ x ≤ 10. Individual ionic species are isolated and their condensation with neutral parent molecules occurs with elimination of two to three carbonyls per stage, to produce Os6, Os9, Os12, and Os15 cluster ion species.
ChemInform Abstract: The Orbital‐Overlap Factor in Electron Transfer: Sensitivity of Homogeneous Self‐Exchange Kinetics for Some Metallocenes to Electronic Structure.
Authors: NIELSON R. M. , GOLOVIN M. N. , MCMANIS G. E. , WEAVER M. J.
Published: May 2016

Rate constants for homogeneous self‐exchange of the various redox couples (Ia)/(Ib), (Ic)/(Id) and (IIa)/(IIb) in acetonitrile and DMSO are determined and compared.
ChemInform Abstract: Equilibration of Diastereomeric Two‐Chain Surfactants. Hydrophobic Control of Organic Stereochemistry.
Authors: PORTER N. A. , OK D. , HUFF J. B. , ADAMS C. M. , MCPHAIL A. T. , KIM K.
Published: May 2016

The dicarboxylic acid surfactants (V) exist as meso and (±) diastereomers (single‐crystal X‐ray analyses of (Vb) and (Vc)), and they form aggregates, presumably micelles, at concentrations > 10‐5 M. Equilibration of the diacids (V) in benzene at 60 °C (TosOH catalyst) gives a 50/50 mixture of meso and (±) diastereomers whilst equilibration in aqueous base with or without cosurfactants (CTAB, DDAB) gives mixtures favoring the meso diastereomer by as much as 90/10.
ChemInform Abstract: Chemistry of Organic Fluorine Compounds. Part 31. Reaction of 1,4‐Dibromohexafluoro‐2‐butene with O‐ and N‐Nucleophiles.
Authors: HEMER I. , MORAVCOVA V. , DEDEK V.
Published: May 2016

The butene (I) affords the rearranged products (IV) or (VII) when allowed to react with the nucleophiles (II) or NH3 (V), respectively.
ChemInform Abstract: Synthetic Route to Tricyclic Carbon Compounds by Friedel‐Crafts Acylation.
Authors: TUBUL A. , SANTELLI M.
Published: May 2016

Cyclohexane (II) is acylated with the cycloalkenylacetyl chlorides (I) to give the des‐A‐oxosteroids (III) and (IV), together with the cyclohexenyl ketone (Vb).
ChemInform Abstract: Matrix Photochemistry of (η5‐Cyclopentadienyl)bis(ethene)rhodium and (η5‐Cyclopentadienyl)(ethene)carbonylrhodium: A Test‐Bed for Intermediates in C‐H Activation.
Authors: HADDLETON D. M. , MCCAMLEY A. , PERUTZ R. N.
Published: May 2016

The primary photoprocess on irradiation of the bis‐ethene complex is the dissociation of ethene.
ChemInform Abstract: Reaction of Diphenylmethyl Cations in a Strong Acid. Participation of Carbodications with Positive Charge Substantially Delocalized Over the Aromatic Rings.
Authors: OHWADA T. , SHUDO K.
Published: May 2016

By means of NMR or UV spectroscopic methods and product analysis it is demonstrated on a wide range of substrates that diphenylmethanols such as (I) in strong acids form mesomeric dications such as (II) which on aqueous work‐up yield the products (III); in the case of R: ‐Ph compound (IV) is formed as well in 8.4% yield, obviously from a mesomeric dication (IIa).
ChemInform Abstract: Interrelationship Between Carboxy(vinyl)ketenes, Methyleneketenes, Vinylketenes, and Hydroxyacetylenes.
Authors: WENTRUP C. , LORENCAK P.
Published: May 2016

The intermediate ketenes (II), (III), and (V) are obtained selectively, sequentially, and isomerically pure for the first time by f.v.p. of Meldrum's acid derivatives (I) under controlled conditions.
ChemInform Abstract: Effect of Molecular Dimension on the Rate of Return Electron Transfer Within Photoproduced Geminate Radical Ion Pairs.
Authors: GOULD I. R. , MOSER J. E. , EGE D. , FARID S.
Published: May 2016

Rate constants of the return electron transfer, k‐et, are measured for geminate radical ion pairs A.‐/D.+ → A + D of the acceptors (A) (I) and 18 donors (D) such as (II)‐(VII).
ChemInform Abstract: A Convenient Synthesis of Polyhydroxylated Chalcones and Flavanones.
Authors: AHLUWALIA V. K. , KHANDURI C. H. , MEHTA V. D. , SHARMA N. D.
Published: May 2016

The convenient route to the title compounds involves demethylation of the corresponding methyl ethers with pyridinium bromide.
ChemInform Abstract: Cyclization Reactions of Hydrazones. Part 21. Synthesis and Cyclization of Some N‐Oxides of 2‐Pyridylhydrazones of Mesoxalic Acid Derivatives.
Authors: SLOUKA J. , BEKAREK V.
Published: May 2016

Unlike most of the coupling reactions of diazonium salts, diazotized (I) forms the hydrazones (IV) with the corresponding nitrile (III) in acidic medium.
ChemInform Abstract: Reactions of 1,2,3,4,5‐Pentafluorocyclopentadiene.
Authors: PAPROTT G. , LEHMANN S. , SEPPELT K.
Published: May 2016

Dechlorination of the isomeric mixture (I) yields the title compound (II) together with the side‐products (III) and (IV).
ChemInform Abstract: Intramolecular Ene Reactions. Part 3. Diastereoselective Formation of Cyclohexanes by Intramolecular Ene Reactions of 1,7‐Dienes.
Authors: TIETZE L. F. , BEIFUSS U.
Published: May 2016

Knoevenagel condensation between the aldehyde (I) and the methylene compounds (V) yields the dienes (II), which undergo thermal rearrangement to give the trans cyclohexanes (III) with high diastereoselectivity ((IIIc) is obtained as a 88:12 mixture of stereoisomers relative to C‐2).
ChemInform Abstract: A New Method for the Preparation of α‐Nitroacetophenones.
Authors: ASHWELL M. A. , JACKSON R. F. W.
Published: May 2016

The β‐nitrostyrenes (I) are converted to α‐nitroacetophenones (IV) upon treatment with tert‐butyl hydroperoxide (II) and butyllithium.
ChemInform Abstract: A Convenient Synthesis for Moore′s Ketene Precursors.
Authors: GHEORGHIU M. D. , PARVULESCU L. , CECLAN R. , MANOLESCU I. , CONSTANTINESCU D. , FLOREA C. , STANESCU M.
Published: May 2016

A new synthesis of the quinones (IIa) and (IIb) is described.
ChemInform Abstract: Anionic Oxy‐Cope Rearrangement of 2‐endo‐Vinylbicyclo(2.2.1)hept‐5‐en‐2‐ol. A Facile Route Towards cis‐Hydrindanone Derivatives.
Authors: CHANG N.‐C. , LU W.‐F. , TSENG C.‐Y.
Published: May 2016

Consecutive acetalization and basic hydrolysis of Brown's aldehyde (I) give the protected norbornenone aldehyde (III) which reacts with the vinyl Grignard compound (IV) to produce a mixture of the allylic alcohols (V) and (VI).
ChemInform Abstract: Synthesis of Bicyclic Oxazolidines. Part 3. A Short Route for the Synthesis of 2‐Substituted 5,5‐Ethylenedioxypentan‐1‐als.
Authors: VANI T. R. , VEERAIAH B. , RAO R. B.
Published: May 2016

The acids (I), obtained by alkylation of the corresponding bromo derivative, are transformed to the desired aldehydes (II) as shown.
ChemInform Abstract: Selective Electrochemical and Photochemical Syntheses of Unsymmetrical Biaryls and Their Non‐Linear Optical Properties.
Authors: COMBELLAS C. , GAUTIER H. , SIMON J. , THIEBAULT A. , TOURNILHAC F. , BARZOUKAS M. , JOSSE D. , LEDOUX I. , AMATORE C. , VERPEAUX J.‐N.
Published: May 2016

The (het)aryl radicals, formed from the (het)aryl chlorides (I) or (IV), react with the phenoxide anion (II) to give the unsymmetrical biaryls (III).
ChemInform Abstract: Variants of Preparing of 2‐Furanonyl‐ and 2‐Pyrrolonyl‐Substituted Quinolines.
Authors: HENNING H.‐G. , GELBIN A. , SCHOEDER H. +
Published: May 2016

Quinolin N‐oxide (I) is coupled with the pyrrolinones (II) to yield the pyrrolonylquinolines (III).
ChemInform Abstract: Synthesis of Pyrazinecarboxylic Acid and Ester N‐Oxides: An Original and Selective Approach Using Aliphatic Precursors.
Authors: AGNES G. , FELICIOLI M. G. , SANTINI C. , RIBALDONE G.
Published: May 2016

Ethyl glycinate (I) reacts with ethyl formate (II) and sodium ethoxide (III) to form the sodium salt (IV).
ChemInform Abstract: Condensation Reactions of 1,1‐Dimorpholinoethene and of 1,1‐Dipiperidinoethene with Carbon Acids.
Authors: GANDHI S. S. , GIBSON M. S.
Published: May 2016

The enamines (III), (V), (VI) and (IX) and the products (VIII) and (XI) are obtained from the reaction of the title alkenes (I) with the compounds (II), (IV), (VII) and (X).
ChemInform Abstract: 1,2,3,5‐Tetrazines and 1,2,3‐Triazaspiro(4.4)nonanes: Remarkable Products from 1,3‐Dipolar Cycloadditions of N‐Sulfinylamines with Substituted Triazolium Imides.
Authors: BUTLER R. N. , CUNNINGHAM D. , MCARDLE P. , L'HALLORAN G. A.
Published: May 2016

Reaction of the triazolium imides (Ia) and (Ic) or (Ib) with the N‐sulfinylamines (II) or (V) yields the dihydrotetrazines (III) or the triazaspirononanes (IV).