bluuebunny/crossref_metadata_2025 huggingface dataset:
ChemInform Abstract: Synthesis, Structure, and Reactivity of a Zirconocene Complex of Cyclobutene.
Authors: FISHER R. A. , BUCHWALD S. L.
Published: May 2016

The first structurally characterized transition‐metal complex (V) (space group P21/n, Z=4) of cyclobutene is formed by elimination of methane from the complex (III) with subsequent trapping by trimethylphosphine.
ChemInform Abstract: Chemistry of C‐Trimethylsilyl‐Substituted Main‐Group Heterocarboranes. Part 6. Lead(II)‐Inserted η5‐closo‐Plumbacarboranes and Their Reactivity Toward a Bidentate Lewis Base: Crystal Structures of closo‐1‐Pb‐2‐(SiMe3)‐3‐(R)‐2,3‐C2B4H4 and 1‐Pb(C10H8N2)‐2,3‐(SiMe3)2‐2,3‐C2B4H4 (R: SiMe3, Me).
Authors: HOSMANE N. S. , LU K.‐J. , ZHU H. , SIRIWARDANE U. , SHET M. S. , MAGUIRE J. A.
Published: May 2016

The monosodium salts of the nido‐carboranes (I) react with PbCl2 (II) to produce the closo‐plumbacarboranes (III), which are characterized by IR, 1H, 11B, 13C NMR and mass spectroscopy.
ChemInform Abstract: Preparation and Structure of Tetrafluoro(η5‐pentamethylcyclopentadienyl) Niobium and Tetrafluoro(η5‐cyclopentadienyl) Niobium.
Authors: ROESKY H. W. , SOTOODEH M. , XU Y. M. , SCHRUMPF F. , NOLTEMEYER M.
Published: May 2016

By using AsF3 (II) as a fluorinating agent the title compounds (III) are obtained in a facile manner.
ChemInform Abstract: Main‐Group‐Organotransition‐Metal Chemistry: The Cyclopentadienylchromium Polyiodides Including ((C5Me5)2Cr2I+ 3)2(I2‐ 16).
Authors: MORSE D. B. , RAUCHFUSS T. B. , WILSON S. R.
Published: May 2016

The reaction of the dimer (I) and I2 affords a compound, which is shown by single‐crystal X‐ray diffraction (space group P21/c, Z=2) to be the polymer (III).
ChemInform Abstract: Synthesis and Characterization of Tetraruthenaborane Clusters: Molecular Structure of (HRu4(CO)12Au2(PPh3)2B).
Authors: CHIPPERFIELD A. K. , HOUSECROFT C. E. , RHEINGOLD A. L.
Published: May 2016

Deprotonation of the tetraruthenaborane cluster (III) to (IV) occurs via the loss of a Ru‐H‐B bridging proton.
ChemInform Abstract: Reactions of Primary and Secondary Silanes with Binuclear Rhodium Complexes. Formation of μ‐Silylene Complexes and P‐Si Bonds with Facile P‐C Bond Cleavage.
Authors: WANG W.‐D. , EISENBERG R.
Published: May 2016

The bis(μ‐silylene) complexes (III) ((IIIb): space group C2/c, Z=4) are synthesized via the air sensitive and thermally unstable intermediates (IVa)‐(IVc) and (V), correspondingly, which are characterized by NMR and IR spectroscopies.
ChemInform Abstract: Phosphoranimine Phosphines and Arsines as Heterodifunctional Coordinating Ligands. Synthesis and Characterization of New Palladium(II) Metallacycles Cyclic RN=PPh2(CH2)nEPh2PdCl2 (R: SiMe3, GeMe3, H; n = 1, 2; E: P, As) and the Crystal and Molecular Structure of Cyclic HN=PPh2CH2PPh2PdCl2, the First Structural Example of a Phosphoranimine Phosphine Complex.
Authors: KATTI K. V. , BATCHELOR R. J. , EINSTEIN F. W. B. , CAVELL R. G.
Published: May 2016

A first example of partial oxidation of diphosphines leads to heterodifunctional ligands such as (IIIa).
ChemInform Abstract: New 20(10 → 5)abeo‐Diterpenoids from Pygmaeopremna herbacea.
Authors: MENG Q. , HESSE M.
Published: May 2016

The new title compounds pygmaeocin B (I) and C (II) are isolated from the roots of Pygmaeopremna herbacea.
ChemInform Abstract: Hydroformylation of Chiral Terpenes with PtCl(SnCl3)(bis‐phosphine) as Catalyst.
Authors: KOLLAR L. , BAKOS J. , HEIL B. , SANDOR P. , SZALONTAI G.
Published: May 2016

(+)‐(I) and (‐)‐(IV) are hydroformylated regiospecifically to give exclusively the linear aldehydes (III) and (V) without any trace of branched isomers.
ChemInform Abstract: Palominin, a Novel Furanosesterterpene from a Caribbean Sponge Ircinia sp.
Authors: ORTIZ GARCIA M. , RODRIGUEZ A. D.
Published: May 2016

Palominin (Ia) is found to coexist with variabilin.
ChemInform Abstract: Asymmetric Synthesis of 2‐Aminonorbornane‐2‐carboxylic Acids by Diels‐Alder Reaction.
Authors: CATIVIELA C. , LOPEZ P. , MAYORAL J. A.
Published: May 2016

Reaction of the menthyl dehydroalaninate (I) with cyclopentadiene (II) in the presence of TiCl4 gives rise to the isomers (III)‐(VI).
ChemInform Abstract: Synthesis of Aristotelia‐Type Alkaloids. Part 5. Biomimetic Synthesis of (.+‐.)‐Aristomakine and (.+‐.)‐Aristomakinine.
Authors: BURKARD S. , BORSCHBERG H.‐J.
Published: May 2016

The biomimetic syntheses of the title compounds (V) and (VII) are described.
ChemInform Abstract: Synthesis, Antiretrovirus Effects, and Phosphorylation Kinetics of 3′‐Isocyano‐3′‐deoxythymidine and 3′‐Isocyano‐2′,3′‐dideoxyuridine.
Authors: HIEBL J. , ZBIRAL E. , BALZARINI J. , DE CLERCQ E.
Published: May 2016

The deoxynucleosides (I) are coupled with the chlorosilane (II) and subsequently dehydrated to give the cyclonucleosides (III).
ChemInform Abstract: Synthesis of Benzopyran Derivatives. Part 6. Synthesis of Analogues of Precocenes Containing 6‐Chloro‐ or 6‐tert‐Butyl Substituents.
Authors: SEBOEK P. , TIMAR T. , JASZBERENYI J. C. , JEKOE J.
Published: May 2016

Precocenes are insect juvenile‐hormone antagonists.
ChemInform Abstract: Reactions Which Form Both Silicide and Nitride Layers
Authors: DESU S. B. , TAYLOR J. A.
Published: May 2016

are studied for titanium and the layered products are characterized by means of Auger depth profiling, XRD, and TEM.
ChemInform Abstract: Coordination‐Chemical Stabilization of “Naked” Elements of Main Group V (Except Nitrogen) ‐ Synthesis, Structure and Bonding
Authors: SCHEER M. , HERRMANN E.
Published: May 2016

Review: (142 refs.
ChemInform Abstract: The Structure of Hexaaquanickel(II) Chlorate.
Authors: GALLUCCI J. C. , GERKIN R. E.
Published: May 2016

(Ni(H2O)6)(ClO3)2 crystallizes in the cubic space group Pa3 with Z=4.
ChemInform Abstract: The Effect of Hydrogen on the Ductility of Electrodeposited Ni‐P Amorphous Alloys.
Authors: ZELLER R. L. III , LANDAU U.
Published: May 2016

It is found that electrodeposited amorphous Ni‐P alloys contain significant amounts of hydrogen which are present as atomic and molecular hydrogen.
ChemInform Abstract: Degradation of Electrochromic Amorphous WO3 Film in Lithium‐Salt Electrolyte.
Authors: HASHIMOTO S. , MATSUOKA H. , KAGECHIKA H. , SUSA M. , GOTO K. S.
Published: May 2016

SIMS results obtained for an amorphous WO3 film (prepared by electron‐beam deposition) after coloring/bleaching cycles in LiClO4/propylene carbonate solution show that lithium accumulates in the WO3 films.
ChemInform Abstract: The Influence of Tungsten on the Pitting of Aluminum Films.
Authors: SHAW B. A. , FRITZ T. L. , DAVIS G. D. , MOSHIER W. C.
Published: May 2016

Al‐8.5% W and Al‐10.3% W alloy films are prepared by co‐sputter deposition and their corrosion behavior is studied by potentiodynamic polarization in 0.1 M KCl.
ChemInform Abstract: Se2‐ 10, a Bicyclic Polyselenide.
Authors: FENSKE D. , KRAEUTER G. + , DEHNICKE K.
Published: May 2016

Black crystals of (III) containing the bicyclic Se12‐0 anion are prepared and the structure is studied by XRD (space group C2, Z=2; ‐70 °C).
ChemInform Abstract: Synthesis and Crystal Structure of TiBr4, TiBr3 and Ti(AlBr4)2.
Authors: TROYANOV S. I. , RYBAKOV V. B. , IONOV V. M.
Published: May 2016

The known compounds TiBr4 and α‐TiBr3 and the hitherto unknown complex compound Ti(AlBr4)2 (III) are prepared.
ChemInform Abstract: Synthesis and Structure of the Novel Fluorophosphate Na5Cr(PO4)2F2.
Authors: NAGORNYI P. G. , KAPSHUK A. A. , KORNIENKO Z. I. , MITKEVICH V. V. , TRET'YAK S. M.
Published: May 2016

Crystals of the title compound are grown by the method of spontaneous crystallization from melts in the system Na2O‐P2O5‐Cr2O3‐NaF.
ChemInform Abstract: An Efficient and General Method for the Reformatsky‐Type Reaction of Chlorodifluoromethyl Ketones with Carbonyl Compounds Giving α,α‐Difluoro‐β‐hydroxy Ketones.
Authors: KUROBOSHI M. , ISHIHARA T.
Published: May 2016

Chlorodifluoromethyl ketones such as (I) undergo the Reformatsky‐type aldol reaction with a variety of aldehydes, e.g. (II), or ketones, e.g. (IV), in the presence of acid‐washed zinc dust and CuI or AgOAc to give the corresponding title ketones.
ChemInform Abstract: Kinetics of Successive Addition of Methyloxirane (IIa) or Ethyloxirane (IIb) to Alkanethiols in the Presence of Basic Catalysts (III).
Authors: CHLEBICKI J. , CICHACZ Z.
Published: May 2016

Rate constants and activation parameters are determined for the addition reaction of oxiranes (IIa) resp. (IIb) to the resp. butyl‐(2‐hydroxypropyl) or ‐(2‐hydroxybuty) sulfides (Ia) and (Ib) (n = 1) and their resulting higher homologues (I) (n = 2‐6 and 2‐4, resp.) in the presence of the respective alcoholates (III) as the basic catalysts; a mixture of 1,2‐ and 1,3‐dibromobenzene is used as solvent (373‐403 K); higher alkyl sulfides Me‐(CH2)p‐S‐CH2‐CH(OH)‐Me + (IIa) (with p = 5, 7, and 9) are studied as well.
ChemInform Abstract: New Ketene Equivalents for the Diels‐Alder Reaction. Vinyl Sulfoxide Cycloadditions.
Authors: WILLIAMS R. V. , LIN X.
Published: May 2016

Phenyl vinyl sulfoxide (I) reacts with excess cyclopentadiene (II) in benzene to produce the isomeric sulfoxides (III).
ChemInform Abstract: Cyclizations with Arylhydrazono‐malononitriles.
Authors: SCHAEFER H. + , GEWALD K. , GRUNER M.
Published: May 2016

The title compounds (I) add 2 equiv. malononitrile (II) followed by cyclization to give the pyrido‐pyridazines (III).
ChemInform Abstract: The Photolysis of 1‐Benzyloxy‐2‐pyridone and Its Methyl Derivatives. Correlation with 1H NMR‐Derived Ground‐State Conformation.
Authors: SAKURAI T. , MURAKATA Y. , INOUE H.
Published: May 2016

External heavy‐atom (CH2Br2), solvent, temp., and methyl substituent effects on the fluorescence and reaction of (Ia)‐(Ic) are measured and correlated with conformations of these compounds determined by 1H NMR together with those of some reference compounds such as (IV) and (V).
ChemInform Abstract: Photoinduced Molecular Transformations. Part 104. Pathways of the Photorearrangement of Five‐Membered Cyclic Steroidal α‐Nitro Ketones to N‐Hydroxy Cyclic Imides, Cyclic Hydroxamic Acid, and Cyclic Imide.
Authors: SUGINOME H. , KUROKAWA Y.
Published: May 2016

Photolysis of the A‐nor‐steroidal α‐nitro ketone (I), which exists predominantly in its enol form, in the absence of oxygen produces the cyclic N‐hydroxyimide (II), and the oxime (III).
ChemInform Abstract: Sodium Perborate: A Mild and Convenient Reagent for Efficiently Oxidizing Organoboranes.
Authors: KABALKA G. W. , SHOUP T. M. , GOUDGAON N. M.
Published: May 2016

Sodium perborate oxidizes the trialkylboranes (III) and the vinylboranes (VII), which are obtained by hydroboration of the corresponding alkenes (I) or alkynes (V), to give the alcohols (IV) and the carbonyl compounds (VIII) respectively.
ChemInform Abstract: Selective Bromofluorination of Alkenes with 1,3‐Dibromo‐5,5‐dimethylhydantoin and Silicon Tetrafluoride.
Authors: SHIMIZU M. , NAKAHARA Y. , YOSHIOKA H.
Published: May 2016

Treatment of the alkenes (I) with 1,3‐dibromo‐5,5‐dimethylhydantoin and silicon tetrafluoride results in bromofluorination to produce the vicinal bromofluorides (II).
ChemInform Abstract: Aromatic Sulfonation. Part 109. Acid‐Catalyzed Transfer Sulfonation of Anisole Using Overcrowded Polymethylbenzenesulfonic Acids.
Authors: KOEBERG‐TELDER A. , CERFONTAIN H.
Published: May 2016

Transfer sulfonation of anisole (I) using various polymethylbenzenesulfonic acids such as (II) catalyzed by trifluoromethanesulfonic acid is described (product distributions are given in dependence on time).
ChemInform Abstract: An Improved Procedure for the Conversion of Amines to Alcohols at Low Temperature.
Authors: NIKOLAIDES N. , GANEM B.
Published: May 2016

The N‐trihaloacetyl‐protected amines (I), (IV), and (VI) are converted to the corresponding O‐acetates (III), (V), and (VII) by nitrosation and subsequent rearrangement of the intermediate N‐nitrosoamides.
ChemInform Abstract: A New Enantioselective Approach to the Bicyclo(4.4.0)decane and Bicyclo(4.3.0)nonane Systems.
Authors: ASAOKA M. , NISHIMURA K. , TAKEI H.
Published: May 2016

Addition of zinc reagents (II) or (VII) to the silylketone (I) or Diels‐Alder reaction of the latter with dienes (X) or (XII) gives rise to the formation of a series of title compounds, e.g. (IV), (V), (IX), (XI) and (XIII) with high stereoselectivity.
ChemInform Abstract: Chloro‐Substituted, Sterically Hindered 5,11‐Dicarbo Analogues of Clozapine as Potential Chiral Antipsychotic Agents.
Authors: DAVIS D. A. , DE PAULIS T. , JANOWSKY A. , SMITH H. E.
Published: May 2016

Elimination of HBr from the dibromide (II), obtained by bromination of the dibenzocycloheptenone (I), followed by substitution of the second bromine with the piperazine (III), yields the enamines (IV) and (V).
ChemInform Abstract: Tetrazole Compounds. Part 4. Alkylation of 1‐Aryl‐5‐(2‐dimethylamino‐vinyl)‐1H‐tetrazoles.
Authors: FISCHER G. W.
Published: May 2016

Alkylation of the tetrazoles (I) with dialkyl sulfates (or, slightly less effective with alkyl iodides) yields mainly 4‐substituted tetrazolium salts which can be isolated free from isomers by separation as perchlorates (III).
ChemInform Abstract: 3‐Hydroxy‐3‐methylglutarylcoenzyme A Reductase Inhibitors. Part 6. trans‐6‐(2‐(Substituted‐1‐Naphthyl)ethyl(or ethenyl))‐3,4,5,6‐tetrahydro‐4‐hydroxy‐2H‐pyran‐2‐ones.
Authors: PRUGH J. D. , ALBERTS A. W. , DEANA A. A. , GILFILLIAN J. L. , HUFF J. W. , SMITH R. L. , WIGGINS J. M.
Published: May 2016

The naphthylpropanals (XII) and (XIX), prepared as outlined in the reaction scheme, are transformed into the corresponding pyranones (XIII) and (XX) mentioned in the title by a literature‐known procedure.
ChemInform Abstract: Synthesis of Optically Active Cyclopenta(c)pyran‐4‐carboxylic Acid Derivatives, Building Blocks for Iridoids. An Attractive Alternative to Asymmetric de Mayo Reaction.
Authors: SATO M. , TAKAYAMA K. , SEKIGUCHI K. , ABE Y. , FURUYA T. , INUKAI N. , KANEKO C.
Published: May 2016

The formylacetate (I) reacts with the dimethylformamide acetal (II) to give the dimethylaminomethylene compound (III) which is hydrolyzed, yielding the hydroxymethylene analogue (IV).
ChemInform Abstract: 8‐Amino‐4‐aryl‐2‐methyl‐1,2,3,4‐tetrahydroisoquinolines: Reactions of the Amino Group via the Diazonium Salts. Synthesis and Biological Activity of Novel 8‐Substituted 4‐Aryl‐2‐methyltetrahydroisoquinolines.
Authors: ZARA‐KACZIAN E. , DEAK G. , GYOERGY L. +
Published: May 2016

Starting from the title compounds (I) the 8‐fluoro (V), 8‐nitro (VI), 8‐chloro (VII) and 8‐hydroxy derivatives (VIII) are prepared via the isolable diazonium salts (III).
ChemInform Abstract: Addition of Picolines to Benzonitrile Oxide. A Diverging Path with 4‐Picoline.
Authors: MARINONE ALBINI F. , DE FRANCO R. , BANDIERA T. , GRUENANGER P. + , CARAMELLA P.
Published: May 2016

The reaction between 2‐picoline (I) or 3‐picoline (IV) and benzonitrile oxide, generated from benzhydroximic acid chloride (II), affords the biscycloadducts (III) or (V) and (VI).
ChemInform Abstract: Aromatic Lithiation Directed by the Carboxylic Acid Groups. Synthesis of 9‐Substituted Dibenzodioxin‐1‐carboxylic Acids and 6‐Substituted Phenoxathiin‐4‐carboxylic Acids.
Authors: PALMER B. D. , BOYD M. , DENNY W. A.
Published: May 2016

Regioselective lithiation of the acids (I) and subsequent quenching with carbon dioxide followed by esterification yield the corresponding diesters (IV).
ChemInform Abstract: Synthesis and Conformational Properties of 2‐Carboxy‐15‐crown‐5 and Its Cation Complexes.
Authors: TAKAHASHI T. , MALLEN J. , LORENZO D. , KHANNA R. K. , NISHIKAWA M. , GOKEL G. W.
Published: May 2016

The title compound (IV) is obtained as a colorless oil.
ChemInform Abstract: Basket‐Shaped Hosts with Semi‐Flexible Handles.
Authors: SMEETS J. W. H. , VISSER H. C. , KAATS‐RICHTER V. E. M. , NOLTE R. J. M.
Published: May 2016

The hosts (I) and (II) form 1:1 complexes with alkali‐metal ions (clamshell or sandwich‐like structure) or with protonated aliphatic or aromatic diamines (such as 1,7‐diammoniumheptane or o‐phenylenediammonium dipicrate).
ChemInform Abstract: Novel Pentacoordinate Anionic Silicate, (o‐C6H4(SiPhF2)2F)‐,K+·18‐Crown‐6, Containing a Bent Fluoride Bridge Between Two Silicon Atoms.
Authors: TAMAO K. , HAYASHI T. , ITO Y. , SHIRO M.
Published: May 2016

The prepared title compound (VII) (space group P1, Z=1) is characterized by X‐ray structure analysis and NMR spectroscopic data.
ChemInform Abstract: Unprecedented Example of Four Coordination at a Vanadium(II) Center. Synthesis, Structure, and Properties of a Reactive, Nearly Planar V(II) Phenolate Complex, (V(DIPP)4(Li(THF))2) (DIPP: 2,6‐Diisopropylphenolate).
Authors: SCOTT M. J. , WILISCH W. C. A. , ARMSTRONG W. H.
Published: May 2016

The first example of a four‐coordinate V(II) complex (III), crystallizing in Pn with Z=2, is isolated.
ChemInform Abstract: Iron‐Promoted Nitrene‐Extrusion Reactions in 7‐Azanorbornadiene Derivatives.
Authors: SUN C.‐H. , CHOW T. J. , LIU L.‐K.
Published: May 2016

On the thermolysis of the 7‐azanorbornadiene‐Fe complexes (III) and (IV), (VI) and analogues, nitrene‐extrusion reactions occur in dependence on the substituents of the starting complexes and are investigated.
ChemInform Abstract: Octanuclear Heterometallic Clusters with Rhombic Dodecahedral Cores. The Synthesis, Structural Characterization, and Properties of the (Fe6S6(p‐RPhO)6(M(CO)3)2)n‐ Clusters (M: Mo, n = 3, R: Me, OMe, NMe2; M: W, n = 3, R: Me; M: Mo, n = 4, R: Me, OMe, COMe). Precursors for Synthetic Analogues for the Fe/Mo/S Site in Nitrogenase.
Authors: AL‐AHMAD S. A. , SALIFOGLOU A. , KANATZIDIS M. G. , DUNHAM W. R. , COUCOUVANIS D.
Published: May 2016

Among the new members (IIIa)‐(IIIc) of the prismane series prepared, the cluster (IIIa) ( P21/n, Z=4) is investigated by X‐ray diffraction.
ChemInform Abstract: Silver(I) Complexes of Dichloromethane and 1,2‐Dichloroethane.
Authors: COLSMAN M. R. , NEWBOUND T. D. , MARSHALL L. J. , NOIROT M. D. , MILLER M. M. , WULFSBERG G. P. , FRYE J. S. , ANDERSON O. P. , STRAUSS S. H.
Published: May 2016

The dimeric complexes (VIa) and (VIb) (space group Pbca, Z=4) linked by intermolecular Ag‐Cl and Ag‐F bonds (producing six‐coordinate Ag) and the Ag2Pd complexes (VIII) and (X) (for both P1, Z=1) are prepared and studied by solution conductimetry, by tensimetric titrations with CH2Cl2 vapor, and by IR, Raman, liq.
ChemInform Abstract: Oxidation of Coordinated Thiophene: The Preparation of Cp*Rh(tetramethylthiophene S‐oxide).
Authors: SKAUGSET A. E. , RAUCHFUSS T. B. , STERN C. L.
Published: May 2016

Two methods are developed for the oxidation of thiophene to give the first example of a transition‐metal thiophene S‐oxide complex, (II), which crystallizes in P212121 with Z=4.
ChemInform Abstract: Indoles, Indolenines, and Indolines. Part 5. Diastereoselective Spirocyclization of C‐(Alkyloxycarbonyl)formimines of 2‐Substituted 1H‐Indole‐3‐ethanamides (= Tryptamines): Basic Studies.
Authors: FREUND R. , MAHBOOBI S. , NOACK K. , SCHOENHOLZER P. + , BERNAUER K.
Published: May 2016

The title cyclization leads to compounds such as (Va), (Vb) (space group P21 with Z=2), (VII) (space group P212121 with Z=4) and (IX) which represent a spirocyclic partial structure found in many indole alkaloids.
ChemInform Abstract: The Allylic Protection Method in Solid‐Phase Oligonucleotide Synthesis. An Efficient Preparation of Solid‐Anchored DNA Oligomers.
Authors: HAYAKAWA Y. , WAKABAYASHI S. , KATO H. , NOYORI R.
Published: May 2016

The first efficient synthesis of solid‐anchored DNA oligomers is realized; it relies on the use of allyl and (allyloxy)carbonyl groups as protectors of internucleotide linkage and nucleoside bases, respectively.
ChemInform Abstract: Synthesis and Antiviral Activity of 3′‐Heterocyclic Substituted 3′‐Deoxythymidines.
Authors: WIGERINCK P. , VAN AERSCHOT A. , JANSSEN G. , CLAES P. , BALZARINI J. , DE CLERCQ E. , HERDEWIJN P.
Published: May 2016

The azidodeoxythymidine (I) is protected and reduced to give the amino derivative (III) which is coupled with the dimethoxytetrahydrofuran (IV) or the azine (VII) to give the pyrrole derivative (V) and the triazole derivative (IX) respectively.
ChemInform Abstract: ((2‐(Methylthio)phenyl)thio)methyl (MTPM): A New Protecting Group of Hydroxyl Groups Capable of Conversion to a Methyl Group.
Authors: SEKINE M. , NAKANISHI T.
Published: May 2016

Reaction of the benzodithiol‐2‐yl‐protected thymidine (I) with tributyltin hydride followed by treatment with methyl iodide (II) results in ring‐opening, forming the new MTPM‐protecting group at the primary hydroxy function of (III).
ChemInform Abstract: Low Pressure Chemical Vapor Deposition of Thin Film GeO2‐SiO2 Glasses.
Authors: RASTANI S. , REISMAN A.
Published: May 2016

GeO2‐SiO2 glasses are prepared by CVD from SiH4 and GeH4 at different gas‐phase ratios, different temp. (250‐600 °C) and various flow rates.
ChemInform Abstract: Steric and Electronic Effects of Activation of Molecular Oxygen
Authors: STRASAK M.
Published: May 2016

Review: (11 refs.
ChemInform Abstract: Modification of Catalysts
Authors: MARGOLIS L. YA. , FIRSOVA A. A.
Published: May 2016

Review: (i.e.
ChemInform Abstract: Resonant Two‐Photon Ionization Spectroscopy of Jet Cooled NiPt
Authors: TAYLOR S. , SPAIN E. M. , MORSE M. D.
Published: May 2016

is used to investigate the possibility of d‐electron contributions to the bonding in this species.
ChemInform Abstract: Synthesis and Structure of the Lithium Borouranate LiBUO5.
Authors: GASPERIN M.
Published: May 2016

LiBUO5 is obtained from the reaction between U3O8, Li2CO3, and B2O3 at 1353 K. The compound crystallizes in the monoclinic space group P21/c with Z=4.
ChemInform Abstract: Thermal Behavior of the Tetrachlorogallates(III) of Gallium, Potassium, and Indium, A(I)(GaCl4), A(I): Ga, K, In, and of Ga(AlCl4).
Authors: MEYER G. , STAFFEL T. , IRMLER M.
Published: May 2016

As shown by Guinier‐Simon powder XRD, three structure types must be considered to describe the polymorphism of the title ternary chlorides (synthesized by literature methods).
ChemInform Abstract: Site Selectivity in the Reaction of Si(111)‐(7·7) with Si2H6.
Authors: AVOURIS PH. , BOZSO F.
Published: May 2016

The reaction of silane with the (111) surface of an n‐type Si wafer in a UHV system is studied by XPS, AES, LEED, thermal desorption, UV photoemission and scanning tunneling spectroscopy.
ChemInform Abstract: The Effect of β‐Dialkylamino Substitution on Ketone Enolization.
Authors: PRATT N. E. , ALBIZATI K. F.
Published: May 2016

The β‐dialkylamino ketones (I) and (VI) are treated with a variety of strong bases to examine the enolization behaviour.
ChemInform Abstract: A Highly Enantioselective Synthesis of 2‐Substituted Malates by Asymmetric Aldol Reaction.
Authors: KOBAYASHI S. , FUJISHITA Y. , MUKAIYAMA T.
Published: May 2016

The α‐keto esters (II) react with the ketene O,S‐acetal (III) in the presence of tin(II) triflate, tributylstannyl fluoride, and the chiral diamines (I) as promoters to form the optically active adducts (IV).
ChemInform Abstract: Diastereoselective Aldol Reaction of (η6‐X‐C6H4COCH3)Cr(CO)2L Complexes.
Authors: UEMURA M. , MINAMI T. , HAYASHI Y.
Published: May 2016

The substituted acetophenonechromium carbonyl complexes (I) and (V) are converted to boron enolates which are directly coupled with the aldehydes (II) to produce the aldol adducts (III) and (IV) or (VI) and (VII) ‐ in general with predominance of one diastereomer.
ChemInform Abstract: Remarkably Selective Formation of Macrocyclic Aromatic Carbonates: Versatile New Intermediates for the Synthesis of Aromatic Polycarbonates.
Authors: BRUNELLE D. J. , BODEN E. P. , SHANNON T. G.
Published: May 2016

Using optimized reaction conditions, nearly exclusively cyclic oligomers (II) are formed in the pseudo‐high dilution reaction of bis(chloroformates) (I).
ChemInform Abstract: The Structure of Products of Coupling of Arenediazonium Salts with 3‐Aminocrotononitrile Derivatives.
Authors: ELNAGDI M. H. , SADEK K. U. , TAHA N. M. , YASSIN Y. M.
Published: May 2016

The title products (III) and (V) of coupling are shown to be the hydrazones in (E)‐form.
ChemInform Abstract: Synthetic Utility and Mechanistic Studies of the Aliphatic Reverse Brook Rearrangement.
Authors: LINDERMAN R. J. , GHANNAM A.
Published: May 2016

The aliphatic reverse Brook rearrangement of trialkylsilyloxystannanes such as (IV) or (VII), generated from the aldehydes (I) or ketones (VI), is shown to be a general method for the preparation of α‐hydroxyalkylsilanes such as (V) or (VIII).
ChemInform Abstract: Highly Diastereoselective Claisen Rearrangements of N‐Silyl Ketene N,O‐Acetals Generated from Allyl N‐Phenylimidates.
Authors: METZ P. , MUES C.
Published: May 2016

The N‐silyl ketene N,O‐acetals (III), generated from the allyl N‐phenylimidates (I), are N‐desilylated and rearranged to yield the amides (IV) and (V).
ChemInform Abstract: Silicon‐Directed Regiocontrol in Wittig Rearrangements of Bisallyl Ethers and Allyl Propargyl Ethers.
Authors: MIKAMI K. , KISHI N. , NAKAI T.
Published: May 2016

The trimethylsilyl‐substituted diallyl ethers and allyl propargyl ethers (I), (III), (V), (VI), and (VIII) undergo highly regioselective silicon‐directed Wittig rearrangements, yielding the alcohols (II), (IV), (VII), and (IX).
ChemInform Abstract: The Photodecomposition of Cyclic N‐Bromo Imides: Evidence for Stereoelectronic Control in Intramolecular Hydrogen Transfer in Imidyl Radicals.
Authors: CHOW Y. L. , ZHAO D.‐C. , KITADANI M. , PILLAY K. S. , NAGUIB Y. M. A. , HO T.‐I.
Published: May 2016

A wide range of N‐bromo imides such as (I), (III) and (VI) are photolyzed in the presence of CCl2=CH2 or other scavengers for Br· and Br2.
ChemInform Abstract: Palladium‐Catalyzed 1,4‐Arylation/Alkylation of Buta‐1,3‐diene with Halogenoarenes and Stabilized Anions.
Authors: UNO M. , TAKAHASHI T. , TAKAHASHI S.
Published: May 2016

In the presence of a palladium‐phosphine catalyst, buta‐1,3‐diene (I) reacts with halogenoarenes such as (II) and the anions derived from the malono derivatives (III) to give the 1,4‐arylation/alkylation products (IV) in moderate yields.
ChemInform Abstract: Electron Transfer Processes. Part 50. Reductive and Oxidative Alkylations of 1,4‐Enediones by Alkylmercury Chlorides.
Authors: RUSSELL G. A. , KIM B. H.
Published: May 2016

The unsaturated diesters (I), the diketone (IV), or the keto ester (VI) undergo iodine‐promoted coupling reaction with the alkylmercury chlorides (II) to give the derivatives (III), (V), or (VII) and (VIII).
ChemInform Abstract: β‐Functionalization of α,β‐Unsaturated Acetals via 1‐Alkoxyallyltriphenylphosphoranes.
Authors: KIM S. , KIM Y. C.
Published: May 2016

In a one‐pot procedure, the α,β‐unsaturated dimethyl acetals (I) are converted into the enol ethers (VII) and (VIII) and the acetals (IX) via reaction of the ylids, generated from the phosphonium salts (IV), with the electrophiles (V).
ChemInform Abstract: Nickel‐Catalyzed Regioselective Allylation of Allylic Alcohols.
Authors: YANAGISAWA A. , NOMURA N. , HABAUE S. , YAMAMOTO H.
Published: May 2016

The allylic alcohols and ethers (II) react with the dimethylallylzinc bromide (I) in the presence of a Ni(II) catalyst to form mixtures of the coupling products (III) ‐ (VI).
ChemInform Abstract: Co2(CH2=C=O)(CO)7 as an Active Intermediate in the Cobalt‐Catalyzed Alkoxycarbonylation of CH2Br2.
Authors: MIYASHITA A. , NOMURA K. , KAJI S. , NOHIRA H.
Published: May 2016

The cobalt ketene complex (III) mentioned in the title is prepared from dicobaltoctacarbonyl (I) and methylene bromide (II) in the presence of Zn.
ChemInform Abstract: Synthesis and Application of Tertiary Allylic Nitro Compounds.
Authors: ANDERSON D. A. , HWU J. R.
Published: May 2016

Michael addition reaction of secondary nitroalkanes (I) to electron‐deficient acetylenes such as (II) yields the tertiary allylic nitro compounds (III).
ChemInform Abstract: Fluorinated α‐Oxocarboxylic Acids from Oxalic Di‐tert.‐butylester and Fluoro(halo)alkyltrimethylsilanes.
Authors: BROICHER V. , GEFFKEN D.
Published: May 2016

In order to study the extended applicability of the method of preparation of trifluoropyruvic acid, the pyruvic acid monohydrates (IV) are prepared via the colorless oils (III) as shown in the scheme.
ChemInform Abstract: Stereoselective Cyclization of E‐ and Z‐5,6‐Dimethyl‐8‐trimethylsilyl‐6‐octenals.
Authors: ASAO K. , IIO H. , TOKOROYAMA T.
Published: May 2016

The stereoisomeric ω‐silyloctenals (I) are desilylated and cyclized upon treatment with trifluoroacetic acid or Lewis acids to form the vinylcyclohexanols (II) ‐ (V) with strong predominance of the diastereomer (II).
ChemInform Abstract: Diastereoselective Synthesis of the Hydroxyethylene Dipeptide Isoster of Leu‐Val.
Authors: NISHI T. , KATAOKA M. , MORISAWA Y.
Published: May 2016

Reduction of the δ‐amino γ‐keto esters (I), followed by acid‐induced ring closure, yields mixtures of the γ‐lactones (III) and (IV).
ChemInform Abstract: Synthesis and Cardiotonic Activity of 2‐Indolinones.
Authors: ANDREANI A. , RAMBALDI M. , LOCATELLI A. , BOSSA R. , GALATULAS I. , NINCI M.
Published: May 2016

Significant positive inotropic activity is achieved with the title compounds (III).
ChemInform Abstract: Dipolar Cycloaddition Reaction of Diazoalkanes with Trimethylsilyl Substituted Alkynes. Steric Control of Regiochemistry by the Trimethylsilyl Group.
Authors: PADWA A. , WANNAMAKER M. W.
Published: May 2016

The sulfones (I) react with the diazopropane (II) to give the 5‐sulfonyl pyrazoles (III) which extrude nitrogen on photolysis to produce cyclopropenes (IV).
ChemInform Abstract: 1,3‐Dipolar Cycloadditions to Nitrogen‐Substituted Allenes.
Authors: BROGGINI G. , BRUCHE L. , ZECCHI G. , PILATI T.
Published: May 2016

On reaction with the nitrile oxide (II) the title compounds (I) (8 examples) form the monoadducts (III)‐(V) and the diadduct (VI).
ChemInform Abstract: Synthesis and Antileukemic Activity of 1‐((Quinolizidinylalkyl)amino)‐4/7‐R‐thioxanthen‐9‐ones.
Authors: BOIDO CANU C. , IUSCO G. , BOIDO V. , SPARATORE F. , SPARATORE A.
Published: May 2016

Cyclocondensation of thiosalicylic acid (I) with p‐chlorotoluene (II) in sulfuric acid gives a mixture of the thioxanthen‐9‐ones (III) and (IV).
ChemInform Abstract: An Improved and Efficient Synthesis of Quinoxalinecarboxamide 1,4‐Dioxides from Benzofuroxan and Acetoacetamides in the Presence of Calcium Salts.
Authors: STUMM G. , NICLAS H.‐J.
Published: May 2016

With a view to the antibacterial activity of several quinoxaline 1,4‐dioxides the title compounds of type (III) are synthesized.
ChemInform Abstract: Synthesis and Photochromic Properties of Nitro‐Substituted Spironaphthoxazines.
Authors: NEDOSHIVIN V. YU. , LYUBIMOV A. V. , ZAICHENKO N. L. , MAREVTSEV V. S. , CHERKASHIN M. I.
Published: May 2016

The 2‐methyleneindoline (I) is coupled with the nitrosonitronaphthol (II) to give the 7‐nitrospiro(indolinenaphthoxazine) (III).
ChemInform Abstract: Preparation and Chemistry of Some 1,5‐Diphenyl‐1λ4,2,4‐thiadiazine 1‐Oxides.
Authors: JONES S. D. , KENNEWELL P. D. , TULLEY W. R. , WESTWOOD R. , SAMMES P. G.
Published: May 2016

General methods for the preparation of a variety of the title compounds such as (V), (VII) or (IX) are described.
ChemInform Abstract: A Mesityl‐Bridged Methyleneborane.
Authors: PILZ M. , ALLWOHN J. , MASSA W. , BERNDT A.
Published: May 2016

Oxidation of the dilithium compound (I) yields (II) (space group P21, Z=2), a compound in which two B atoms are bridged by an aryl group.
ChemInform Abstract: 2,5‐Dihydroboroles and 1,3‐Dihydro‐1,3‐diboretes from 1,3‐Dienes and Alkynes by Reaction with Dichloro(diisopropylamino)borane and Alkali Metals.
Authors: BROMM D. , STALKE D. , HEINE A. , MELLER A. , SHELDRICK G. M.
Published: May 2016

Subvalent species generated by reaction of dichloro(diisopropylamino)borane (I) with sodium/potassium alloy react in situ with the unsaturated aliphatic hydrocarbons (II) and (IV) to give the title compounds (III) and (V).
ChemInform Abstract: Oligosiloxanes with Functional Groups. Part 9. Synthesis of Substituted Vinylsiloxanes.
Authors: SONNEK G. , DRAHS E. , JANCKE H. , HAMANN H.
Published: May 2016

Stereospecific syn‐addition of the silyl ethers (II) to (I) catalyzed by H2PtCl6 and subsequent hydrolysis lead to the E‐2‐siloxanyl‐but‐2‐ene‐1,4‐dioles (IV).
ChemInform Abstract: Palladium‐Catalyzed Alkenylation of 1‐Siloxycyclopent‐2‐ene Leading to Enol Silyl Ethers of 3‐Alkenylcyclopentanones.
Authors: TORII S. , OKUMOTO H. , KOTANI T. , AKAHOSHI F.
Published: May 2016

The 2‐cyclopentenol silyl ether (I) is coupled with the vinylic (IIa) ‐(IIc) or aryl iodides (IId) in the presence of palladium diacetate and potassium carbonate to give the 3‐substituted enol ethers (IIIa) ‐(IIId).
ChemInform Abstract: A Monocyclic Selenepin: Synthesis and Characterization of Diethyl 2,7‐Di‐tert.‐butyl‐4,5‐selenepindicarboxylate.
Authors: HORI H. , YAMAZAKI S. , YAMAMOTO K. , MURATA I.
Published: May 2016

The non‐isolable title compound (X) is formed in solution by ring expansion reaction from the selenin compound (IX), prepared in steps from the "selenapyranone" (I), and characterized by 1H NMR spectroscopic data.
ChemInform Abstract: Reactivity of (C5Me5)2Sm and Related Species with Alkenes: Synthesis and Structural Characterization of a Series of Organosamarium Allyl Complexes.
Authors: EVANS W. J. , ULIBARRI T. A. , ZILLER J. W.
Published: May 2016

The reactivity of the title complex (C5Me5)2Sm with alkenes is examined and compared with that of (C5Me5)2Sm(THF)2 and ((C5Me5)2Sm(μ‐H))2.
ChemInform Abstract: Characterization of the Chiral Titanium Reagent Prepared from the Tartrate‐Derived Chiral Diol and Titanium Dichloride Diisopropoxide.
Authors: IWASAWA N. , HAYASHI Y. , SAKURAI H. , NARASAKA K.
Published: May 2016

The chiral titanium complex (III) is formed from the chiral diol (I) and di(isopropoxy)titanium dichloride (II) in an equilibrating process.
ChemInform Abstract: The Chemistry of Niobium and Tantalum Dithiocarbamato‐Complexes. Part 4. The Coordination Isomers of NbCl3(S2CNEt2)2 and the X‐Ray Crystal Structure of (NbCl3(S2CNEt2)2).
Authors: HENDERSON R. A. , HUGHES D. L. , STEPHENS A. N.
Published: May 2016

The coordination isomers (III) and (IV) are prepared by the reaction of NbCl5 (I) with (II) under mild conditions.
ChemInform Abstract: Synthesis of Tricarbonyl(η6‐(6)paracyclophane)chromium. Smallest‐Bridged Paracyclophane Metal Complex.
Authors: TOBE Y. , NAKAYAMA A. , KOBIRO K. , KAKIUCHI K. , ODAIRA Y.
Published: May 2016

The paracyclophane (I) reacts with excess chromium hexacarbonyl (II) to give unexpectedly the o‐xylene complex (III).
ChemInform Abstract: Addition of Hydroxide, Alkoxide, and Carboxylate Anions to Platinum‐Bonded Ethylene.
Authors: FANIZZI F. P. , INTINI F. P. , MARESCA L. , NATILE G. , GASPARRINI F.
Published: May 2016

The reaction product (IIIc), from (I) and water, is rather unstable and undergoes spontaneously a condensation reaction to yield (IV), which can be obtained directly using powdered KOH and an undried, chlorinated solvent.
ChemInform Abstract: Nitro and Amino Derivatives of Crown Porphyrins and Their Analogs.
Authors: ZHILINA Z. I. , MEL'NIK V. I. , ANDRONATI S. A.
Published: May 2016

The nitro aldehydes (III) are coupled with pyrrole (IV) to form the porphyrins (V).
ChemInform Abstract: Syntheses and Reactions of Silyl Carbamates. Part 1. Chemoselective Transformation of Amino Protecting Groups via tert‐Butyldimethylsilyl Carbamates.
Authors: SAKAITANI M. , OHFUNE Y.
Published: May 2016

The O‐silyl carbamates (III) and (VIII) are prepared by reaction of the protected allylglycine (I) with the silyl triflate (II) in the presence of 2,6‐lutidine or by the palladium‐catalyzed coupling of the carbamates (VI) with the silane (VII).
ChemInform Abstract: Synthesis, NMR, and Conformational Studies of Some 1,2‐ and 1,3‐Linked Disaccharides.
Authors: JANSSON P.‐E. , KENNE L. , PERSSON K. , WIDMALM G.
Published: May 2016

Eight title compounds with different stereochemical environments at the glycosidic linkages are prepared by standard methods.
ChemInform Abstract: Original Synthesis of 7‐Carboxybenzo(c)phenanthridones.
Authors: DUVAL O. , GOMES L. M.
Published: May 2016

Several benzo(c)phenanthridone alkaloids show antitumor and antileukemic activity.
ChemInform Abstract: Identification of Isodomoic Acid D and Two New Geometrical Isomers of Domoic Acid in Toxic Mussels.
Authors: WRIGHT J. L. C. , FALK M. , MCINNES A. G. , WALTER J. A.
Published: May 2016

In the extracts of toxic mussels, domoic acid (90%) is accompanied by small amounts of its photoisomers isodomoic acid D (I) (ca.
ChemInform Abstract: Theoretical versus Experimental Charge and Spin‐Density Distributions in trans‐(Ni(NH3)4(NO2)2).
Authors: CHANDLER G. S. , DEETH R. J. , FIGGIS B. N. , PHILLIPS R. A.
Published: May 2016

A comparison of data from three different theoretical models (ab initio UHF and DVXα MO calculations as well as cellular ligand field analysis (clf)) with experimental charge and spin‐density distributions, obtained from X‐ray and polarized neutron diffraction results, leads to a consistent picture of the electronic structure and M‐L bonding in the title complex.
ChemInform Abstract: Single‐Crystal X‐Ray Structures of the Polyoxotungstate Salts K8.3Na1.7(Cu4(H2O)2(PW9O34)2)·24 H2O (I) and Na14Cu(Cu4(H2O)2(P2W15O56)2)·53 H2O (II).
Authors: WEAKLEY T. J. R. , FINKE R. G.
Published: May 2016

The title compounds both crystallize in the triclinic space group P1 with Z=1.
ChemInform Abstract: Electron Paramagnetic Resonance Studies of Doped TiO2 Colloids.
Authors: GRAETZEL M. + , HOWE R. F.
Published: May 2016

The EPR spectra of irradiated aqueous Fe‐doped TiO2 colloids show Ti3+ signals including a signal due to aqueous Ti3+ formed by dissolution of the colloid.
ChemInform Abstract: Disilane‐Modified Mordenite Zeolites
Authors: YAN Y. , VANSANT E. F.
Published: May 2016

are prepared by chemisorption of disilane at 423 K. This modification results in a denser packing of the implanted entities on the external surface and a significant enhancement of the pore narrowing effect.
ChemInform Abstract: An IR Study of the Interaction of CO and NO with a Silica Supported Pt‐Rh Alloy Catalyst
Authors: VAN SLOOTEN R. F. , NIEUWENHUYS B. E.
Published: May 2016

is performed at five different temp. in the range 300‐625 K. The IR spectra indicate that both Pt and Rh sites are present on the surface of the Pt‐Rh (Pt:Rh = 1:1) alloy.
ChemInform Abstract: High Pressure‐High Temperature Synthesis and Crystal Structure of Al11Au6 and AlAu.
Authors: BUECHLER H. + , RANGE K.‐J.
Published: May 2016

The title compounds are prepared by melting mixtures of the elements under 2 kbar pressure and slow cooling to room temperature.
ChemInform Abstract: Electroorganic Synthesis of Some Cyclopentanone Derivatives.
Authors: AZZEM M. A. , ELGEMEIE G. E. H. , NEGUID M. A. , FAHMY H. M. , ELMASSRY Z. M.
Published: May 2016

Electroreduction of the benzothiazole (III) leads to the cyclopentanone (IV).
ChemInform Abstract: Synthesis and Functionalization of Intermediates Derived from Allylmagnesiation of E‐1‐(Trimethylsilyl)but‐3‐en‐1‐ol.
Authors: KOCIENSKI P. , LOVE C. , ROBERTS D. A.
Published: May 2016

The silylated E‐configurated enol (I) is coupled with allylmagnesium bromide (II) to produce predominantly the anti‐isomer of the homoallylic alcohols (IV) after aqueous work‐up.
ChemInform Abstract: Selectivity of the β‐Fragmentation of Alkyl Radicals. Part 2. β‐Fragmentation of α‐(Methoxycarbonyl)alkyl Radicals.
Authors: METZGER J. O. , KLENKE K.
Published: May 2016

The ratio of β‐scission and hydrogen transfer ((II)/(III)) is affected by the nature of the H‐donor.
ChemInform Abstract: Rearrangement of Radicals Derived from Bicyclo(5.1.0)octa‐2,4‐diene, Tricyclo(6.1.0.02,4)nona‐6‐ene and Tetracyclo(7.1.0.02,4.05,7)decane.
Authors: CULSHAW P. N. , DALTON M. , MACCORQUODALE F. , WALTON J. C.
Published: May 2016

Cyclopropanation of (I) using the standard Simmons‐Smith procedure yields mono‐adduct (III) and its 2,5‐diene isomer (yield 1%), all four di‐cyclopropanated products such as syn‐(IV) and its anti‐isomer (20%), and two of the three possible tri‐adducts, namely anti,anti‐(V) and its syn,anti‐isomer (7%).
ChemInform Abstract: Reactions of Azo and Azoxy Sulfones with Transition‐Metal Complexes. Part 7. Arylation of Olefins with Arylazoxy Aryl Sulfones Catalyzed by a Palladium(0) Phosphine Complex.
Authors: KAMIGATA N. , FUKUSHIMA T. , SATOH A. , KAMEYAMA M.
Published: May 2016

The title compounds (I) react with 5‐fold excess of the styrenes (II) in the presence of a Pd(0) catalyst to form trans‐stilbenes (III) and 1,1‐diarylethenes (IV) as well as minor quantities of biphenyls (V).
ChemInform Abstract: Reaction of Aryllead Triacetates with Sodium Azide in Dimethyl Sulfoxide: A New Route to Aryl Azides.
Authors: HUBER M.‐L. , PINHEY J. T.
Published: May 2016

Aryllead triacetates (I), generated in situ from arylboronic acids, react with NaN3 to give aryl azides such as (III) in high yield.
ChemInform Abstract: 1,6‐Addition of Organocopper Reagents to 3‐Alkynyl‐2‐cycloalkenones: Regiospecific Syntheses of Dienones and Allenes.
Authors: CHENG M. , HULCE M.
Published: May 2016

The enol ethers (I), derived from cyclic 1,3‐diketones, are coupled with acetylene (II) to produce the alkynylcycloalkenones (III) mentioned in the title.
ChemInform Abstract: The Stereocontrolled Synthesis of a 2,3,3‐Trisubstituted Cyclohexanone Involving Hydroxylactonization of a Tertiary Amide.
Authors: CAIRNS P. M. , HOWES C. , JENKINS P. R.
Published: May 2016

A new method for the stereocontrolled synthesis of 2,3,3‐trisubstituted cyclohexanones such as (VIII) is reported.
ChemInform Abstract: Potential Neuroleptics of the Orthopramide Series; Synthesis of N‐(3‐(tert.‐Amino)propyl)‐5‐sulfamoyl‐2‐methoxybenzamides.
Authors: VALENTA V. , VLKOVA M. , HOLUBEK J. , SVATEK E. , METYSOVA J. , PROTIVA M.
Published: May 2016

Heating of the benzoate (I) with a series of twelve 3‐(tert.‐amino)propylamines such as (II) yields the title compounds (III), which are transformed to salts and subjected to pharmacological screening as potential neuroleptics of the sulpiride series.
ChemInform Abstract: Homolytic Displacement at Saturated Carbon in Organocobaloximes. Part 4.
Authors: GUPTA B. D. , ROY M. , ROY S. , KUMAR M. , DAS I.
Published: May 2016

Benzyl cobaloxime (I) and five of its 4‐R‐substituted derivatives are reacted with TosCl (II) and four other benzene sulfonyl chlorides to give 30 sulfones such as (III), each accompanied by the respective bibenzyl such as (IV) and sometimes also the dimethylglyoxime derivatives (cf.
ChemInform Abstract: Synthesis of Optically Active 2‐Furylmethanols as Useful Chiral Building Blocks and Application to the Synthesis of (5R,6S)‐6‐Acetoxyhexadecan‐5‐olide and (+)‐Disparlure.
Authors: KAMETANI T. , TSUBUKI M. , TATSUZAKI Y. , HONDA T.
Published: May 2016

A new method for the preparation of optically active 2‐furylmethanols such as (R)‐(I) from racemic sec. 2‐furylmethanols using catalytic amounts of titanium‐L‐tartrate complex is described.
ChemInform Abstract: Synthesis of Iodo(III) Enol Lactones via Iodine(III)‐Induced Lactonization of Alkynoic Acids. Structurally Potential Serine Protease Inactivators.
Authors: OCHIAI M. , TAKAOKA Y. , MASAKI Y. , INENAGA M. , NAGAO Y.
Published: May 2016

The alkynoic acids (I), (V), (VII), and (XIa) are treated with iodosylbenzene (II) in the presence of boron trifluoride etherate (III) to form the iodoniomethylene lactone tetrafluoroborates (IV), (VI), (VIII), or (XII).
ChemInform Abstract: Synthesis and Pharmacological Study of Novel 2‐Pyrrolidinethione and 2‐Methylenepyrrolidine Derivatives.
Authors: KADUSHKIN A. V. , GOLOVKO T. V. , GRANIK V. G. , GLUSHKOV R. G. , PARIMBETOVA R. B. , PARSHIN V. A. , MASHKOVSKII M. D.
Published: May 2016

The thiocarbamoylmethylpyrrolidinethione (I) is coupled with benzyl chloride (II) to give the pyrroloimidazole (III).
ChemInform Abstract: Diels‐Alder Reactivity of Pyrano(4,3‐b)indol‐3‐ones, Indole 2,3‐Quinodimethane Analogues.
Authors: MOODY C. J. , RAHIMTOOLA K. F.
Published: May 2016

The pyranoindolones (I) undergo Diels‐Alder reaction with a variety of alkynes such as (II) to form, after loss of CO2, the carbazoles (III) or/and (IV).
ChemInform Abstract: The 1,3‐Dipolar Cycloaddition of 3‐Methyl‐5‐phenylisoxazoline N‐Oxide.
Authors: CHOW Y. L. , SHU Y. Y. , BAKKER B. H. , PILLAY K. S.
Published: May 2016

1,3‐Dipolar cycloaddition of the title compound (I) with various electron deficient olefins (II) is induced by elevated temperature or high pressure to produce regioselectively isoxazolizidines which are obtained as mixtures of the geometric isomers (III) ‐ (VI).
ChemInform Abstract: 2‐Methylthio‐1,3,4‐thiadiazolium Cations as Useful Precursors for the Preparation of 2‐Amino‐1,3,4‐thiadiazole Derivatives and as Dehydrating Reagents of Aldoximes.
Authors: MOLINA P. , TARRAGA A. , ESPINOSA A.
Published: May 2016

The 2‐methylthio‐1,3,4‐thiadiazolium perchlorates (I) and (IV) react with the primary amines and hydrazines (II) and with the hydrazones (V) in the presence of triethylamine to form the 2‐amino‐1,3,4‐thiadiazole derivatives (III) and (VI).
ChemInform Abstract: Intramolecular Alkylations of Aromatic Compounds. Part 27. Synthesis of 3,4‐Dihydro‐1′‐methylspiro(naphthalene‐1(2H),3′‐piperidine).
Authors: REIMANN E. , SPECKBACHER J.
Published: May 2016

Sodium borohydride reduction of the phenylpropylpyridinium methoiodide (II), obtained from 3‐cyanopyridine (I) by a known procedure, produces a mixture of the tetrahydropyridines (III) and (IV) which are stereoselectively cyclized by thermal treatment with polyphosphoric acid to form the title compound (V).
ChemInform Abstract: Synthesis, Stereochemistry, and Antiulcer Activity of 4‐Phenyltetrahydroisoquinolines.
Authors: IVANOVA N. , IVANOV T. , MONDESHKA D. , BEROVA N. , ANGELOVA I. , RAKOVSKA R. , BOJADJIEV S. , TANCHEVA C. , TASCHEVA D.
Published: May 2016

The antiulcer activity of the title compounds (IV) and (IX), synthesized as shown in the reaction scheme, is tested in rats.
ChemInform Abstract: Substituent Effects in Various Alkyl Derivatives of 9aH‐Quinolizine‐1,2,3,4‐tetracarboxylate Studied by 13C NMR Spectroscopy and X‐Ray Analysis.
Authors: KAMIENSKA‐TRELA K. , KANIA L. , LIPKOWSKA Z. , BEDNAREK E. , RAYNES W. T.
Published: May 2016

The parent compound (Ia) and 21 methyl‐ or ethyl‐substituted derivatives are prepared via Diels‐Alder condensation of the pyridine + E‐C≡C‐E (all five mono‐methyl and five mono‐ethyl derivatives, ten dimethyl derivatives and the 6,8,9a‐trimethyl derivative; 13C NMR).
ChemInform Abstract: Synthesis of 2‐Methyl‐4‐amino‐5‐tert‐butoxymethylpyrimidine and Cleavage of Its Ether Bond.
Authors: LITVAK M. M.
Published: May 2016

Consecutive reaction of the tert‐butoxypropionitrile (III) with ethyl formate (IV), dimethyl sulfate (V), and acetamidine (VI) gives the title compound (VIII) together with the ethoxymethyl compound (VII).
ChemInform Abstract: Reaction of Benzoquinones with Cyclic Amines. 1H and 13C NMR Spectra of Amine Adducts.
Authors: AKIBA M. , NAGAOKA K. , TAKIGAWA M. , TAKADA T.
Published: May 2016

The 1,4‐benzoquinones (I) and (V) react with the cyclic amines (II) to form mixtures of the amino adducts (III) and (IV) or (VI) and (VII).
ChemInform Abstract: A Study of New Bis(macrocyclic Polyamine) Ligands as Inorganic and Organic Anion Receptors.
Authors: KIMURA E. , KURAMOTO Y. , KOIKE T. , FUJIOKA H. , KODAMA M.
Published: May 2016

The bridged bis(pentaaza macrocycles) (IV) are prepared by twofold coupling of the tetraesters (I) with the pentamine (II), followed by reduction of the keto moieties with the borane‐tetrahydrofuran complex.
ChemInform Abstract: N,N′‐Dilithiobis(alkylamino)phenylboranes as Starting Materials for Four‐Membered Metallacycles.
Authors: FEST D. , HABBEN C. D. , MELLER A. , SHELDRICK G. M. , STALKE D. , PAUER F.
Published: May 2016

With sterically demanding substituents at the N‐atoms the reaction of the title boranes such as (I) with metal tetrachlorides or diorganometaldihalides yields the borametallacyclobutanes (III), (V) and (VII).
ChemInform Abstract: Ring Contractions of Octamethylcyclotetrasilazanes to Silyl‐Substituted Cyclotrisilazanes.
Authors: DIPPEL K. , KLINGEBIEL U. , PAUER F. , SHELDRICK G. M. , STALKE D.
Published: May 2016

In contrast to the formation of acyclic silazanes on reaction of (I) or its Li salts with various reagents caused by the easy cleavage of the Si‐N bond, their reaction behavior toward fluorosilanes and ‐boranes is different.