bluuebunny/crossref_metadata_2025_split huggingface dataset:
ChemInform Abstract: Electroless Deposition of Au:In Alloys for Ohmic Contacts Onto Pd‐Activated n‐GaAs Substrates.
Authors: LAMOUCHE D. , CLECHET P. , MARTIN J. R. , HAROUTIOUNIAN E. , SANDINO J. P. 
Published: May 2016

AbstractThe new electroless plating bath for the formation of In:Au alloy deposits contains, like Okinaka's gold plating bath, KBH4 as reducing agent, KAu(CN)2, KOH, and KCN, and additionally In2(SO4)3 (> 10‐4 M) and EDTA to stabilize In3+.
ChemInform Abstract: Photochemistry of (5,10,15,20‐Tetraphenylporphyrinato)iron(III) Halide Complexes, Fe(TPP)(X).
Authors: HENDRICKSON D. N. , KINNAIRD M. G. , SUSLICK K. S. 
Published: May 2016

AbstractA near‐UV absorption in Fe(III)(TPP)(X) (where X: F, Cl, Br, I, N3) is assigned as a halide ligand‐to‐metal charge‐transfer transition.
ChemInform Abstract: Reactions of Trifluoromethylsulfenyl Fluoride with Olefins and Fluorinated Olefins.
Authors: GOMBLER W. , BOLLMANN G. 
Published: May 2016

AbstractTrifluoromethylsulfenyl fluoride (II) reacts with propene (Ia) to yield the isomeric thioethers (III) and (IVa).
ChemInform Abstract: Enzymic Optical Resolution and Flash Vacuum Thermolysis in Concert for the Synthesis of Optically Active Cyclopentenones.
Authors: KLUNDER A. J. H. , HUIZINGA W. B. , SESSINK P. J. M. , ZWANENBURG B. 
Published: May 2016

AbstractThe cyclopentenonorbornenes (‐)‐(II), obtained by decarboxylation of (Ia), and (Ib) and (Ic) undergo addition reaction with the Grignard compouds (IIIa) and (IIIb) or the malonate (IIIc), yielding the substituted cyclopentanonorbornenes (IV) and (VI).
ChemInform Abstract: Facile Preparation of Two 5‐(α‐Acetoxyethyl)‐3‐quinuclidinones via Intramolecular Functionalization.
Authors: STOTTER P. L. , HILL K. A. , FRIEDMAN M. D. 
Published: May 2016

AbstractThe racemic quinuclidine alcohols (I) are transformed into the oxime acetates (III).
ChemInform Abstract: Synthetic and Biosynthetic Studies of Porphyrins. Part 11. The Synthesis of meso Oxygenated Protoporphyrins.
Authors: JACKSON A. H. , RAO K. R. N. , WILKINS M. 
Published: May 2016

AbstractTreatment of protoporphyrin‐IX dimethyl ester (Ia) with benzoyl peroxide (II) affords a mixture of the four isomeric meso‐benzoyloxy derivatives (Ib)‐(Ie).
ChemInform Abstract: 9‐cis and 11‐cis Isomers of 18,18,18‐, 19,19,19‐, and 20,20,20‐Trifluororetinal.
Authors: MEAD D. , ASATO A. E. , DENNY M. , LIU R. S. H. , HANZAWA Y. , TAGUCHI T. , YAMADA A. , KOBAYASHI N. , HOSODA A. , KOBAYASHI Y. 
Published: May 2016

AbstractThe 9‐cis or 11‐cis isomers (VI) and (XII) of the all‐trans trifluororetinal (Ia) are prepared as shown in the reaction scheme.
ChemInform Abstract: IR Spectra of HF Complexes with Methane, Silane, and Germane
Authors: DAVIS S. R. , ANDREWS L. 
Published: May 2016

Abstractindicate that two types of 1:1 complexes are formed in noble gas matrices: a normal one with H of HF interacting with one hydrogen of GeH4 or SiH4, and a reverse complex in which F is interacting with one hydrogen of CH4.
ChemInform Abstract: Lattice Parameters and Debye Temperatures of Ag‐Cd‐Zn(α‐Phase) Alloys.
Authors: BHIKSHAMAIAH G. , SURYANARAYANA S. V. 
Published: May 2016

AbstractSix ternary alloys containing 2‐30 at.% Cd and 1‐20 at.% Zn (i.e.
ChemInform Abstract: A New Oxotellurate, Na4TeO5, and a Revision of the Structure of Li4TeO5.
Authors: UNTENECKER H. , HOPPE R. 
Published: May 2016

AbstractColourless single crystals of the title compounds have been prepared by reaction of the binary oxides (Na2O(Li2O):TeO3 = 2:1, 700 °C, 28 d (60 d), Ag‐cylinder).
ChemInform Abstract: A Structural Study of the Complexation of the Lithium Ion by the Cryptand 4,7,13‐Trioxa‐1,10‐diazabicyclo(8.5.5)icosane.
Authors: ABOU‐HAMDAN A. , HOUNSLOW A. M. , LINCOLN S. F. , HAMBLEY T. W. 
Published: May 2016

AbstractThe crystal structure of the complex (I) is determined by a single‐crystal X‐ray diffraction analysis ( P21/n; Z=4).
ChemInform Abstract: 1H,2H‐ and 1H‐Cyclopropene‐3,3‐dicarboxylates and 1H,2H‐Cyclopropene3,3‐dicarboxylic Acid from the Corresponding Trimethylsilyl Derivatives.
Authors: DOLGII I. E. , OKONNISHNIKOVA G. P. , NEFEDOV O. M. 
Published: May 2016

AbstractStarting with the trimethylsilyl‐protected cyclopropenedicarboxylates (I), obtained from the corresponding trimethylsilylacetylenes and dimethyl diazomalonate as described previously, the cyclopropenedicarboxylates (II) and the free acid (III) are prepared.
ChemInform Abstract: Synthesis of 2‐Indanones by Intramolecular Insertion of α‐Diazoketones.
Authors: NAKATANI K. 
Published: May 2016

Abstract1‐Phenylcyclohexanecarboxylic acid (Ia) is transformed into the diazoketone (Ib) which cyclizes in the presence of dirhodium tetraacetate to give the spirocyclus (II).
ChemInform Abstract: Formation of Thiazoline Derivatives in the Reaction of Thiourea with 2‐Bromo‐3‐aminopropionic Acid.
Authors: GOLUBEV A. A. , SEMENENKO M. N. , MANDRUGIN A. A. , FEDOSEEV V. M. 
Published: May 2016

Abstractα‐Bromo‐β‐alanine (II), prepared by bromination of β‐alanine (I), reacts with thiourea (III) to give the inner salt (IV) or the isothiuronium salts (V) or (VI), depending on the solvent and the reaction conditions.
ChemInform Abstract: Formation of Germanium‐Nitrogen Double Bonds in Reactions of the Electron‐Rich Germylene Bis(bis(trimethylsilyl)amido)germanium(II) with a Range of Diazo‐Compounds.
Authors: GLIDEWELL C. , LLOYD D. , LUMBARD K. W. 
Published: May 2016

AbstractThe electron‐rich germylene (II) reacts with the diazo‐compounds (I), which contain an enolizable function, to yield the heterocycles (III).
ChemInform Abstract: New Allylstannanes for the Connective Construction of Monoprotected Vicinal Diols.
Authors: KECK G. E. , ABBOTT D. E. , WILEY M. R. 
Published: May 2016

AbstractThe vinyl ethers (I) are transformed to the stannyl derivatives (III) which are coupled to some aldehydes, yielding adducts such as (V), (X), (XII), and (XIII) with strong stereoselectivity.
ChemInform Abstract: Synthetic, Spectroscopic, and X‐Ray Crystallographic Studies on Binuclear Copper(II) Complexes with a Tridentate NNS‐Bonding 2‐Formylpyridine Thiosemicarbazone Ligand. Characterization of Both Neutral and Deprotonated Coordinated Ligand Structures.
Authors: BINGHAM A. G. , BOEGGE H. + , MUELLER A. + , AINSCOUGH E. W. , BRODIE A. M. 
Published: May 2016

AbstractThe preparation of the complexes (I) occurs by interaction of 2‐formylpyridine thiosemicarbazone HL with the appropriate Cu(II) salt or by reaction of an HL‐KX mixture (X: Br, I) with Cu(II) acetate monohydrate.
ChemInform Abstract: Synthesis and Characterization of a Mixed Metal A‐Frame Complex: Pd2(μ‐Pt(PPh3)2)Cl2(PMe2CH2PMe2)2.
Authors: NI J. , KUBIAK C. P. 
Published: May 2016

AbstractThe insertion of a Pt(PPh3)2 fragment, which is isolobal with CH2, into the highly reactive Pd‐Pd single bond of the complex (I) yields the first heteronuclear A‐frame complex (III).
ChemInform Abstract: Preparation, Characterization and Reactivity of a Series of Diethylenetriamine (dien) and Substituted dien Complexes of Platinum(II).
Authors: MAHAL G. , VAN ELDIK R. 
Published: May 2016

AbstractThe preparation and characterization of the isolated chloro complexes (I) and (II) and the hydroxo and aquo complexes (III) and (IV) in solution are reported.
ChemInform Abstract: Synthesis of a Nickel(II) B,C,D‐Hexadehydrocorrinate by (A → D)‐Ring Closure.
Authors: MONTFORTS F.‐P. , BATS J. W. 
Published: May 2016

AbstractThe Ni complex (I) is converted to the protected secocorrin (IV), which undergoes cyclization to the title compound (V).
ChemInform Abstract: Selective Amide Cleavage in Peptides Containing α,α‐Disubstituted α‐Amino Acids.
Authors: WIPF P. , HEIMGARTNER H. 
Published: May 2016

AbstractThe dipeptide amides (III) are prepared in excellent yields by reaction of the amino acids (II) with the aziridines (I) as amino acid amide equivalents.
ChemInform Abstract: Total Synthesis of D,L‐Purpurosamine C.
Authors: GOLEBIOWSKI A. , JACOBSSON U. , CHMIELEWSKI M. , JURCZAK J. 
Published: May 2016

AbstractPressure‐promoted and Eu(fod)3‐catalyzed (4 + 2) cycloaddition of (I) with (II), followed by cis/trans isomerization, gives the dihydropyran (III) in high yield.
ChemInform Abstract: Stereoselective Synthesis of 1‐β‐Methylcarbapenem.
Authors: KIM C. U. , LUH B. , PARTYKA R. A. 
Published: May 2016

AbstractThe silyl enol ether (II) reacts with the azetidinone (I) in the presence of trimethylsilyl triflate (III) to produce the isomers (IV) which cyclize, yielding the bicyclic derivative (V).
ChemInform Abstract: Electrochemical Behaviour of Aluminium in Aqueous Caustic Solutions
Authors: BROWN O. R. , WHITLEY J. S. 
Published: May 2016

Abstract(KOH) has been investigated at room temp. and can be described in terms of the simple (Vetter) model for an oxide‐covered electrode, modified to involve varying degrees of hydration and the possibility of transient surface roughening.
ChemInform Abstract: Osmium Tetroxide as a Redox Catalyst. Mechanism of OsO4‐Catalyzed Decomposition of Hydrogen Peroxide.
Authors: CSANYI L. J. , GALBACS Z. M. , NAGY L. , HORVATH I. 
Published: May 2016

AbstractOn the basis of experimental data from the literature, a unified mechanism for the title reaction is proposed.
ChemInform Abstract: Platinum Catalysed Thallium(III) Oxidation of Vanadium(IV) in Aqueous Sulphuric Acid
Authors: CHIMATADAR S. A. , NANDIBEWOOR S. T. , RAJU J. R. 
Published: May 2016

Abstractat 70 °C. It is demonstrated that the second order rate constant of the title reaction increases in the presence of bright Pt metal.
ChemInform Abstract: Iron(II) Cobalt Ferrites. Preparation and Interfacial Behaviour.
Authors: ARDIZZONE S. , CHITTOFRATI A. , FORMARO L. 
Published: May 2016

AbstractA series of CoxFe3‐xO4 compounds with 0.25 < x < 1 has been prepared by a wet procedure (controlled oxidation of ferrous ions by alkaline KNO3 in the presence of variable amounts of Co2+) and the phase purity and Co/Fe ratio has been determined.
ChemInform Abstract: Structural Studies of Mesogen Benzalazine Derivatives. Part 1. Semiempirical MO Calculations (CNDO/2, MNDO) on Intramolecular H‐Bond and Vicinal Interactions
Authors: ELGUERO J. , JAIME C. , MARCOS M. , MELENDEZ E. , SANCHEZ‐FERRANDO F. , SERRANO J. L. 
Published: May 2016

Abstract(e.g.
ChemInform Abstract: Ketene. Part 25. Mechanistic Studies of the Reaction of Nitrile Oxides with Ketenes.
Authors: EVANS A. R. , TAYLOR G. A. 
Published: May 2016

AbstractAt room temp. the cycloaddition of the nitrile oxide (I) and the ketene (II) leads in addition to (V) to the thermally stable adduct (IV), which bears the isotopic label predominantly, but not exclusively, in the carbonyl group.
ChemInform Abstract: Heterocyclic Compound Studies. Part 2. Synthesis of 1,4‐Benzodioxin, 1,4‐Benzoxathiin, 1,4‐Benzoxazine, and 1,4‐Benzothiazine Derivatives.
Authors: CABIDDU S. , FLORIS C. , MELIS S. , SOTGIU F. , CERIONI G. 
Published: May 2016

AbstractThe o‐substituted phenols (I) are coupled with methyl 4‐chlorobutynoate (II) or methyl 4‐bromobutenoate (VII), yielding the benzo‐fused heterocycles (III) ‐ (VI) or (VIII) and (IX).
ChemInform Abstract: Synthesis and Diels‐Alder Reactions of Dieno‐pyranosides.
Authors: GIULIANO R. M. , BUZBY J. H. 
Published: May 2016

AbstractOxidation and simultaneous elimination of the mesylate (Ic), prepared from the known glycoside (Ia) via its derivative (Ib), gives the enal (IIIa).
ChemInform Abstract: Purported Structure of Cyclodeca(1,2,3‐de:6,7,8‐d′e′)dinaphthalene.
Authors: GLEITER R. , SCHAAFF H. P. , RODEWALD H. , JAHN R. , IRNGARTINGER H. 
Published: May 2016

AbstractThe elimination reaction of the bis(sulfonium salt) (I) yielded the main products (II) and (III) in approximately equal amounts together with a small trace of zethrene (IV).
ChemInform Abstract: The Structure of the Product Obtained by the Reaction of 2‐Hydroximino‐3‐oxo‐5‐phenyl‐4‐pentenenitrile with Ethylcyanoacetate.
Authors: HEINISCH G. , HOLZER W. , VOELLENKLE H. + 
Published: May 2016

AbstractThe product of the title reaction is proved to be the pyrrolinone (II), having Z‐configuration at the extracyclic double bond.
ChemInform Abstract: Transannular Addition of α‐Lithio Sulfoxides to Inactivated Double Bonds. Regio‐ and Stereochemical Aspects.
Authors: CERE V. , PAOLUCCI C. , POLLICINO S. , SANDRI E. , FAVA A. 
Published: May 2016

AbstractOn treatment with butyllithium the (RR,SS)‐sulfoxide (Ia) yields the bicyclic isomer (II) as the only product.
ChemInform Abstract: Synthesis and Reactions of 3‐Iodo‐4H‐pyran‐4‐ones.
Authors: MAREI M. G. , MISHRIKEY M. M. , EL‐KHOLY I. E. 
Published: May 2016

AbstractThe acetylenic β‐diketones (I) and iodine monochloride form the 3‐iodo4‐H‐pyran‐4‐ones (III) which react with methylamine (V) to give the pyridones (VI).
ChemInform Abstract: Synthetic Studies on the Streptogramin Antibiotics. Enantioselective Synthesis of the Oxazole Dienyl Amine Moiety.
Authors: MEYERS A. I. , LAWSON J. P. , WALKER D. G. , LINDERMAN R. J. 
Published: May 2016

AbstractCompound (X) contains the oxazoledienylamine moiety which is typical of several streptogramin antibiotics.
ChemInform Abstract: Synthesis and Transformations of Some Pyrido(2,3‐d)pyrimidines.
Authors: KOCEVAR M. , KOLLER J. , STANOVNIK B. , TISLER M. 
Published: May 2016

AbstractThe syntheses of the pyrido(2,3‐d)pyrimidine oxides (IV) and (IX) and of the pyrido(2,3‐d)pyrimidines (V), (VIII) and (X) are described.
ChemInform Abstract: o‐Nitrobenzylidene Compounds. Part 4. The Cyanide‐Induced Cyclization of o‐Acetamido‐N‐(o‐nitrobenzylidene)anilines: an Improved Route to Quinoxalino(2,3‐c)cinnolines.
Authors: SHEPHERD T. , SMITH D. M. 
Published: May 2016

AbstractCyclization of the acetamides (I) with KCN (II) leads to the quinoxalino‐cinnolines (III).
ChemInform Abstract: Reactivity of 3H‐Pyrimido(5,4‐c)(1,2,5)oxadiazin‐3‐one Towards Carbanions: Synthesis of Pteridine‐2,4‐diones.
Authors: GIORI P. , POLI T. , VERONESE A. C. , VICENTINI C. B. , MANFRINI M. , GUARNERI M. 
Published: May 2016

AbstractThe pyrimidooxadiazinone (III), prepared by cyclization of 1,3‐dimethyl‐4‐amino‐5‐nitrosouracil (I) with dimeric phosgene (II), is coupled with the carbonyl compounds (IV) or (VI), producing the pteridine‐2,4diones (V) or (VII).
ChemInform Abstract: Synthesis of 11‐Aza‐5H‐benzophenoxazin‐5‐one and 11‐Aza‐5H‐pyridophenoxazin‐5‐one Derivatives.
Authors: NAN'YA S. , MAEKAWA E. , KANG W.‐B. , UENO Y. 
Published: May 2016

AbstractThe benzophenoxazinones (III) and (IV) are prepared by condensation reaction of 2‐amino‐3‐hydroxypyridine (I) with the 1,4‐naphthoquinones (II).
ChemInform Abstract: Synthesis of 4‐(2‐Acetoxyethoxymethyl)‐6‐methyl‐1,2,4‐triazin‐3(4H)‐one 1‐Oxide as Thymidine Analogue.
Authors: BANIJAMALI A. R. , FOYE W. O. 
Published: May 2016

AbstractChloromethoxyethyl acetate (IIa), prepared from 1,3‐dioxolane (I), is converted to the isothiocyanate (IIb) which is coupled with hydrazine to form the thiosemicarbazide (IIc).
ChemInform Abstract: Hydroboration. Part 79. Preparation and Properties of Methylborane and Dimethylborane and Their Characteristics as Hydroborating Agents. Synthesis of Tertiary Alcohols Containing Methyl Groups via Hydroboration.
Authors: BROWN H. C. , COLE T. E. , SREBNIK M. , KIM K.‐W. 
Published: May 2016

AbstractMethylborane (IIa) and dimethylborane (IIb) are prepared by treatment of the lithium borohydrides (I) with hydrogen chloride.
ChemInform Abstract: Chiral Lewis Acids. Haloorganotins Bearing Chiral Organic Groups.
Authors: KRISHNAMURTI R. , KUIVILA H. G. 
Published: May 2016

Abstract(‐)‐Carvone (I), (+)‐verbenone (IV), and the (‐)‐myrtenic acid ester (VIII) react with trimethylstannyllithium (II) to give the optically active Michael addition products (III), (V), and (IX).
ChemInform Abstract: Phosphorylation of Isoprenoid Alcohols.
Authors: DAVISSON V. J. , WOODSIDE A. B. , NEAL T. R. , STREMLER K. E. , MUEHLBACHER M. , POULTER C. D. 
Published: May 2016

AbstractThe homoallylic (I) and allylic (Va) isoprenoid alcohols are activated as tosylates (II) or halides (Vb) and then coupled with tris(tetra‐n‐ butylammonium) hydrogen pyrophosphate (III) to yield the diphosphates (IV) and (VI).
ChemInform Abstract: Synthesis and Biological Activity of Substance P Analogues Containing Pyrohomoglutamic Acid and Homoglutamine.
Authors: HASHIMOTO T. , SAKURA N. , HIROSE K. , UCHIDA Y. , NISHIJIMA M. , MORO T. 
Published: May 2016

AbstractThe peptides (I)‐(VIII) are synthesized by the solid phase method.
ChemInform Abstract: Synthesis of Substrates of Cyclic AMP‐Dependent Protein Kinase and Use of Their Protected Precursors for the Convenient Preparation of Phosphoserine Peptides.
Authors: GREHN L. , FRANSSON B. , RAGNARSSON U. 
Published: May 2016

AbstractThe synthesis of the peptides (Ia), (IIa)‐(IId) as substrates of cyclic AMP‐dependent protein kinase, based on a partial amino acid sequence from rat liver pyruvate kinase, as well as of related phosphoserine peptides (Ib), (Ic) is described.
ChemInform Abstract: Total Synthesis of the Indole Alkaloids Ngouniensine and Epingouniensine.
Authors: BOSCH J. , BENNASAR M.‐L. , ZULAICA E. , MASSIOT G. , MASSOUSSA B. 
Published: May 2016

Abstract5‐Ethylpyridine‐2‐carboxylic acid (I) is hydrogenated and esterified to give the mixture of hexahydropyridinecarboxylic acid esters (II) which is also obtained from the compound (III).
ChemInform Abstract: The 2‐Thioanalogues of tRNA Components Derived from 5‐Hydroxyuridine.
Authors: MALKIEWICZ A. J. , NAWROT B. 
Published: May 2016

AbstractThe synthesis of 5‐ethoxycarbonylmethoxy‐2‐thiouracil (IIIb), starting from ethyl hydroxyacetate (I), is described.
ChemInform Abstract: Condensed Tannins: Base‐Catalyzed Reactions of Polymeric Procyanidins with Toluene‐α‐thiol. Lability of the Interflavanoid Bond and Pyran Ring.
Authors: LAKS P. E. , HEMINGWAY R. W. 
Published: May 2016

AbstractReaction of loblolly pine bark tannins with the title reagent (II) at pH 12 is investigated for the example (I).
ChemInform Abstract: Chemistry of Phosphorus. Part 170. Constitutional and Configurational Isomers of Hexaphosphane(8), P6H8.
Authors: HAHN J. , RIEKEHOF‐BOEHMER R. + , BAUDLER M. 
Published: May 2016

AbstractThe six diastereomers of P6H8 outlined below have been identified by 31P(1H) NMR spectroscopy of a phosphane mixture containing 5‐10 P‐% of P6H8 (obtained by thermolysis of P2H4).
ChemInform Abstract: Raman Spectroscopic Study of the Synthesis of Zeolite Y.
Authors: DUTTA P. K. , SHIEH D. C. , PURI M. 
Published: May 2016

AbstractThe vibrational data of the solution and solid phases during zeolite Y formation indicate the presence of six‐membered aluminosilicate rings during nucleation, which act as building blocks.
ChemInform Abstract: Nonstoichiometry and Electrical Resistivity in Two Mixed Metal Oxides, La2NiO4‐x and LaSrNiO4‐x.
Authors: ISHIKAWA K. , KONDO S. , OKANO H. , SUZUKI S. , SUZUKI Y. 
Published: May 2016

AbstractThe electrical resistivity of the title compounds has been measured as a function of the oxygen‐vacancy concentration, x (473‐1173 K, O2 pressure of 98‐58·103 Pa).
ChemInform Abstract: Rubidium Hexaamidolanthanate and ‐neodymate, Rb3(La(NH2)6) (I) and Rb3(Nd(NH2)6) (II); Compounds Structurally Related to K3(Cr(OH)6) and K4CdCl6.
Authors: JACOBS H. , STUEVE C. + 
Published: May 2016

Abstract(I) and (II) have been prepared by reaction of the metals with NH3 (Rb:La (Nd) = 3:1, 4‐4.5 kbar NH3, 573 K).
ChemInform Abstract: Tyrosyl Motion in Peptides: 2H NMR Line Shapes and Spin‐Lattice Relaxation.
Authors: RICE D. M. , MEINWALD Y. C. , SCHERAGA H. A. , GRIFFIN R. G. 
Published: May 2016

Abstract2H quadrupole echo NMR line shapes and spin‐lattice relaxation times are measured for two crystalline tyrosine‐containing peptides, N‐acetyl‐L‐prolyl‐L‐tyrosine‐d2‐N'‐methylamide and N‐acetyl‐L‐asparaginyl‐L‐prolyl‐L‐tyrosine‐d2‐N'‐methylamide.
ChemInform Abstract: Rehybridization and π‐Orbital Overlap in Nonplanar Conjugated Organic Molecules: π‐Orbital Axis Vector (POAV) Analysis and Three‐Dimensional Hückel MO (3D‐HMO) Theory.
Authors: HADDON R. C. 
Published: May 2016

AbstractA detailed analysis is presented in terms of electronic structure calculations on torsionally twisted ethylene using HF/STO‐3G, GVB/STO‐3G, GVB/6‐31G, and GVB/6‐31G* levels.
ChemInform Abstract: Metal Complexes with Tetrapyrrole Ligands. Part 44. Configuration and Conformation of the anti‐5,15‐Dialkyl‐2,3,7,8,12,13,17,18‐octaethyl‐5H,15H‐porphodimethenes (Decaalkylporphodimethenes).
Authors: BOTULINSKI A. , BUCHLER J. W. , ABBES N. E. , SCHEIDT W. R. 
Published: May 2016

AbstractOn the basis of a crystal structure analysis of (Ib) (R: ‐iPr) (P21/a with Z=2) and 1H NMR data the "normal" compounds (Ia) are assigned to the syn‐axial ("aa") configuration, whereas the three "anomalous" isomers (Ib) are assigned to the anti ("dd") configuration.
ChemInform Abstract: Mechanism of Base‐Induced Gas‐Phase Elimination Reactions of Ethers.
Authors: DE KONING L. J. , NIBBERING N. M. M. 
Published: May 2016

AbstractFor the base‐induced gas‐phase elimination reactions of (I), cis‐(IIa) and trans‐(IIb) the kinetic isotope and leaving group effects are determined as functions of the base strength (NH2‐, MeNH‐, EtNH‐, OH‐) using the FT ICR MS method.
ChemInform Abstract: Selectivity of Anionic Activation by Fluoride Ion in Solid‐Liquid Systems. Synthesis of Tetramic Acids and 4‐Methylene‐1,3‐oxazolidin‐2‐ones.
Authors: SEBTI S. , FOUCAUD A. 
Published: May 2016

AbstractWhen the reaction method A) is used, title compounds of type (II) and (VI) can be synthesized in good yields as shown in the scheme.
ChemInform Abstract: Transition Metal Promoted Intramolecular Cyclizations of α,α‐Dichloro Esters and Acids.
Authors: HAYES T. K. , FREYER A. J. , PARVEZ M. , WEINREB S. M. 
Published: May 2016

AbstractCyclization of the unsaturated α,α‐dichloro acids or esters (I) in the presence of the catalysts (II) yields the monocyclic carboxylic acid derivatives (III) and/or the bicyclic γ‐lactones (IV).
ChemInform Abstract: Diastereoselective Ene Reaction in the Photooxygenation of the Silyl Cyanohydrins of α,β‐Unsaturated Aldehydes: Necessity for a Common Symmetrical Intermediate of the Perepoxide Type.
Authors: ADAM W. , CATALANI L. H. , GRIESBECK A. 
Published: May 2016

AbstractPhotooxygenation of the isomeric cyanohydrins (III), derived from senecialdehyde (Ia) or tiglaldehyde (Ib), yields the hydroperoxides (V) as the main products resulting from ene reaction.
ChemInform Abstract: Sulfinic Acids and Related Compounds. Part 18. Synthesis and Properties of Derivatives of 2‐Mercaptoethanesulfinic Acid.
Authors: HARMON J. P. , FIELD L. 
Published: May 2016

AbstractThiirane‐1,1‐dioxide (I) proves to be a versatile starting material for the synthesis of sulfinic acid derivatives such as (VI) and sulfones such as (V) and (X).
ChemInform Abstract: Syntheses of 5‐, 7‐, and 8‐Methoxy‐3‐methyl‐2‐tetralone.
Authors: JOHANSSON A. M. , MELLIN C. , HACKSELL U. 
Published: May 2016

AbstractThe tetralone derivatives (VII) mentioned in the title are prepared by three different methods as shown in the reaction scheme: either starting with the dimethoxy naphthalenes (I) by Birch reduction, cyclopropanation and subsequent hydrolysis or by methylation, reduction and hydrolysis or from the α‐methylindanones (VIII) by Wittig olefination and Tl(NO3)3‐induced ring expansion.
ChemInform Abstract: Benzothieno(2,3‐b)indole and Pyridothieno(2,3‐b)indole.
Authors: LEVY J. , ROYER D. , GUILHEM J. , CESARIO M. , PASCARD C. 
Published: May 2016

AbstractThe title compounds (VI) and (IX) (X‐ray analysis: space group P212121, Z=12) containing the thieno(2,3‐b)indole skeleton, which has been little investigated until now, can be obtained by the pathways shown in the scheme.
ChemInform Abstract: Catecholamines in a Semi‐Rigid Framework: Synthesis and Biological Activities of N‐Substituted 1‐Aminomethyl‐5,6‐ and 6,7‐Dihydroxyisochromans.
Authors: KUMAR A. , KHANNA J. M. , JAIN P. C. , ANAND N. , SRIMAL R. C. , KOHLI J. D. , GOLDBERG L. 
Published: May 2016

AbstractTitle compounds of type (I) (40‐71%) and (II) (38‐70%) are synthesized by O‐demethylation of the corresponding dimethyl ethers with BBr3 and screened for their pharmacological activity.