bluuebunny/crossref_metadata_2025 huggingface dataset:
ChemInform Abstract: Triple‐Decker Complexes. Part 6. 30‐Electron Rule of Triple‐Decker Complexes ‐ Examples with Vanadium, Niobium, and Tantalum.
Authors: HERBERICH G. E. , HAUSMANN I. , KLAFF N.
Published: May 2016

The first 30e triple‐decker complexes of vanadium (III) and (Va) and the higher homologues (Vb) and (Vc) are prepared according to the scheme and characterized by IR and NMR (11B, 13C) data.
ChemInform Abstract: Reactions of Cyclic CpFe(CO)2(=COCH2CH2O)+, CpFe(CO)2(=C(SMe)2)+ and Related Carbene Complexes with Reducing Agents and Nucleophiles. The Structure of (CpFe(CO)2(=C(SMe)2))PF6.
Authors: GLAVEE G. N. , SU Y. , JACOBSON R. A. , ANGELICI R. J.
Published: May 2016

Reducing agents such as sodium naphthalenide react immediately with (I) or (VII) to give unstable primary products which undergo rapid decomposition.
ChemInform Abstract: Molecular Engineering of Solid‐State Materials: Organometallic Building Blocks.
Authors: FAGAN P. J. , WARD M. D. , CALABRESE J. C.
Published: May 2016

Reaction of the reagent (IV) with aromatic hydrocarbons that are used as geometric templates allows the preparation of polycationic complexes with particular shapes and geometries of positive charge.
ChemInform Abstract: Preparation of a Discrete, Closed‐Transition‐Metal Boride. Characterization and Structure of trans‐(Fe4Rh2(CO)16B)PPN.
Authors: KHATTAR R. , PUGA J. , FEHLNER T. P. , RHEINGOLD A. L.
Published: May 2016

The reaction of any of the anions derived from HFe4(CO)12BH2 with excess (Rh(CO)2Cl)2 in THF at 25 °C proceeds with the formation of a single final product in high yield.
ChemInform Abstract: Flash Photolysis Studies of RhCl(CO)L2 (L: Trimethyl‐ or Tritolylphosphine). Evidence for Intermediates in the Photocatalytic Carbonylation of Hydrocarbons.
Authors: SPILLETT C. T. , FORD P. C.
Published: May 2016

Flash photolysis investigations show that in benzene under argon the two title complexes give transients with spectral properties and kinetics behavior implying photoinduced CO dissociation followed by reversible insertion of the tricoordinate intermediate into the solvent C‐H bond.
ChemInform Abstract: Dehydrogenation, Hydrogenolysis, Isomerization, and Hydrogenation of 3‐Phenylprop‐2‐en‐1‐ol with Carbonylperchloratobis(triphenylphosphine)iridium(I) and Carbonyldihydridoperchloratobis(triphenylphosphine)iridium(III).
Authors: CHIN C. S. , SHIN J. H. , KIM J. B.
Published: May 2016

Treatment of the phenylpropenol (I) with the iridium(I) and iridium(III) catalysts mentioned in the title yields a mixture of the aldehydes (II) and (IV) and the phenylpropene (III).
ChemInform Abstract: Steroids. Part 41. Neighboring Group Participation. Part 10. Neighboring Group Participation and Fragmentation During the Solvolysis of the Epimers of 3‐Methoxy‐16‐(tolylsulfonyloxymethyl)‐estra‐1,3,5(10)‐trien‐17‐ol.
Authors: SCHNEIDER G. , BOTTKA S. , HACKLER L. , WOELFLING J. + , SOHAR P.
Published: May 2016

The four possible isomers of the title compound are converted a) into the 17‐acetates cis‐(I) and trans‐(III) and b) into the 17‐tetrahydropyranyl derivatives such as (V).
ChemInform Abstract: Effect of a Thio Group on Simplified Analogues of Bleomycin.
Authors: LOMIS T. J. , MARTIN J. , MCCLOSKEY B. , ZHANG S. , SIDDIQUI S. , SHEPHERD R. E. , SIUDA J. F.
Published: May 2016

Two new series of ligands related to the metal‐chelating portion of the anti‐tumor drug bleomycin are synthesized and evaluated.
ChemInform Abstract: An Efficient Approach for the Synthesis of 2‐Deoxy‐β‐D‐glycosides.
Authors: GURJAR M. K. , GHOSH P. K.
Published: May 2016

The model title compound (VI) is prepared from the glucopyranose (I) and the galactopyranose (II) as shown (no yield given for (Vb) and (VI)).
ChemInform Abstract: Structural Aspects of High‐Temperature Cuprate Superconductors
Authors: RAO C. N. R. , RAVEAU B.
Published: May 2016

Review: (55 refs.
ChemInform Abstract: Wide‐Range Determination of Thermal Conductivity by Differential Scanning Calorimetry.
Authors: TORRES‐GOMEZ L. A. , YANEZ‐NIETO R.
Published: May 2016

The applicability of the DSC technique over a wide range of conductivity values is tested using the materials Teflon, duraluminum, and copper having low, intermediate and high values of thermal conductivity, respectively.
ChemInform Abstract: NIR Spectra of Single Crystals of M2CuCl4·2 H2O (M: K, Rb) and CuCl2·2 H2O at Low Temperature: A Local‐Mode Analysis.
Authors: WALKER I. M. , MCCARTHY P. J.
Published: May 2016

The polarized NIR spectra of single crystals of the title compounds show at 10 K many sharp bands due to water vibrations, both overtones and combinations.
ChemInform Abstract: Moessbauer Study and Nonlinear Excitations in the Antiferromagnetic Chain of Rb2Mn1‐xFexF5·H2O (x ≤ 0.50).
Authors: PEBLER J.
Published: May 2016

Moessbauer‐effect measurements are performed as a function of temp. with special emphasis on the region very near the Neel point.
ChemInform Abstract: Non‐Isothermal, in situ XRD Analysis of Dolomite Decomposition,
Authors: ENGLER P. , SANTANA M. W. , MITTLEMAN M. L. , BALAZS D.
Published: May 2016

collecting the data at 4 °C intervals while continuously heating the sample at 3 °C/min, shows that under CO2, dolomite decomposes directly to CaCO3 accompanied by formation of MgO between 550 and 765 °C. In a second step CaCO3 decomposes to CaO at 900‐960 °C. Under air, dolomite decomposition becomes a one‐step process with simultaneous formation of CaCO3, CaO, and MgO between 700 °C and 740‐750 °C. At 750 °C, the calcite begins to decompose even though dolomite is still present.
ChemInform Abstract: Comparison of Microstructures in Oxidation and Reduction: Rh and Ir Particles on SiO2 and Al2O3.
Authors: BURKHARDT J. , SCHMIDT L. D.
Published: May 2016

XPS results show that both Rh and Ir particles are oxidized at lower temp. on Al2O3 (by ∼ 200 °C) than on SiO2, whereas no pronounced differences between these supports are observed for the subsequent H2 reduction of the oxides.
ChemInform Abstract: The Sonochemistry of Zn Powder.
Authors: SUSLICK K. S. , DOKTYCZ S. J.
Published: May 2016

The effects of ultrasonic irradiation on the chemical reactivity, particle and surface morphology, and surface atomic composition of Zn powder are studied.
ChemInform Abstract: Crystal Structure and Properties of the Rare‐Earth‐Metal Rhodium Carbides Ln8Rh5C12 (Ln: Y, Gd‐Tm).
Authors: HOFFMANN R.‐D. , JEITSCHKO W. , REEHUIS M. , LEE S.
Published: May 2016

The title compounds crystallize in space group C2/m with Z=2.
ChemInform Abstract: Resonance Raman Spectroscopy of Iron(II) Superstructured Porphyrins: Influence of Porphyrin Distortions on CO and O2 Ligand Dissociation.
Authors: DESBOIS A. , MOMENTEAU M. , LUTZ M.
Published: May 2016

Resonance Raman spectroscopy is used to probe the effects of a strap strain on the bonding of O2 and CO of four synthetic title complexes (I).
ChemInform Abstract: Metal Complexes with Macrocyclic Ligands. Part 28. Structures and Stabilities of the Cu2+ Complexes with 1,4,7‐Triazacyclononane‐1‐acetic Acid.
Authors: STUDER M. , RIESEN A. , KADEN T. A.
Published: May 2016

The potentiometric study of the reaction between the title ligand and Cu2+ ions indicates the presence of the complexes (I)‐(IV), the stability constants of which are determined.
ChemInform Abstract: Electrochemistry and Oxidatively Induced CO Insertion of (η7‐C7H7)Mo(CO)2(C6F5).
Authors: GIPSON S. L. , KNETEN K.
Published: May 2016

As shown by cyclic voltammetry the title complex is reversibly oxidized in an one‐electron process, but a stable cation could not be generated.
ChemInform Abstract: Electronic Control of Stereoselectivity in the Metal Hydride Reductions of 1,2,3,4‐Tetrahydro‐1,4‐methanonaphthalen‐9‐ones.
Authors: OKADA K. , TOMITA S. , ODA M.
Published: May 2016

The stereoselectivity of the title reaction is controlled by the degree of homoconjugation in the substrates (I): anti attack, leading to (III), increases with an increasingly electron‐rich aromatic moiety in the order (Ia) → (Ie) (the poor electron‐donating properties of the benzene ring in (Ib) are ascertained by IR data and control experiments).
ChemInform Abstract: Effect of Reaction Conditions on the Nucleophilic Substitution of R,S,cis‐trans‐Trisubstituted 1,3‐Dioxolane.
Authors: CISZEWSKI L.
Published: May 2016

While in aprotic solvents the SN2 mechanism is observed for the exclusive substitution at the 4‐position of (I) the title reaction in neat amines follows the SN1 mechanism.
ChemInform Abstract: Diels‐Alder Reactions with 3‐Cyclopropylideneprop‐1‐enyl Ethyl Ether as 1,3‐Diene.
Authors: KIENZLE F. , STADLWIESER J. , MERGELSBERG I.
Published: May 2016

The title compound (III) (used in solution; not purified) reacts readily with various dienophiles, especially with quinones.
ChemInform Abstract: Thermolysis of Polyazapentadienes. Part 10. Flash Vacuum Pyrolysis of Azoalkenes and Some Azocarbonyl Compounds.
Authors: MCNAB H. , MURRAY M. E.‐A.
Published: May 2016

The pyrolysis of a wide range of title compounds representing different types, e.g. (I), (III), and (VI) is studied.
ChemInform Abstract: Thermolysis of Polyazapentadienes. Part 11. Concerted and Free Radical Mechanisms in 2‐Aza Enone and 2‐Aza Enethione Pyrolyses: Crystal and Molecular Structures of 3‐Dimethylamino‐1‐p‐tolyl‐2‐azaprop‐2‐en‐1‐one and 3‐Dimethylamino‐1‐phenyl‐2‐azaprop‐2‐ene‐1‐thione.
Authors: BLAKE A. J. , MCNAB H. , MURRAY M. E.‐A.
Published: May 2016

On pyrolysis the "push‐pull" derivatives (Ia)‐(Ic) and (VI) undergo electrocyclization followed by collapse to nitrile (II) and formamide (III) or thioformamide (VII), respectively.
ChemInform Abstract: Synthetic Photochemistry. Part 46. Cycloaddition of exo,endo‐2,7‐Bis(methoxycarbonyl)‐11,12‐dioxatetracyclo(6.2.1.13,6.02,7)dodeca‐4,9‐diene and Conjugated Enones and p‐Quinones.
Authors: TIAN G. R. , MORI A. , KATO N. , TAKESHITA H.
Published: May 2016

While the regioselective photocycloaddition of the title compound (I) with cyclohexenone yields a mixture of the four possible stereoisomers, a single (analogous) product (III) is obtained in the reaction with cyclopentenone (II).
ChemInform Abstract: Alkene Epoxidation by Ruthenium(II) Phosphine Complexes. A Kinetic Investigation.
Authors: BRESSAN M. , MORVILLO A.
Published: May 2016

The coordinatively unsaturated complexes (I) effectively promote the epoxidation of olefins such as octene, cyclooctene, norbornene and stilbene in the presence of iodosylbenzene and in low‐coordinating media.
ChemInform Abstract: Reduction of Azoalkanes by Benzhydryl Radicals.
Authors: ENGEL P. S. , WU W.‐X.
Published: May 2016

Benzhydryl radicals generated by thermolysis of benzpinacol are shown to offer a clean method to convert ca. 10 azoalkanes such as (I) into the corresponding hydrazines, among them air‐sensitive hydrazines and bridged derivatives.
ChemInform Abstract: 3,3′‐Carbonylbis(5‐phenyl‐1,3,4‐oxadiazole‐2(3H)‐thione): A Novel, Reactive, and Versatile Condensing Agent for Amide, Ester, Thiol Ester, Urea, Carbonate, Polyamide, and Polyurea Syntheses.
Authors: SAEGUSA Y. , WATANABE T. , NAKAMURA S.
Published: May 2016

The title compound (III), a crystalline solid displaying excellent hydrolytic stability as compared to conventional condensing agents, is used for the preparation of the target products (VII) and (VIII) under mild conditions.
ChemInform Abstract: Synthesis of 1,3‐Xylylenebis(sulfonylstyrenes).
Authors: REDDY M. V. R. , VIJAYALAKSHMI S. , REDDY D. B. , REDDY N. S.
Published: May 2016

Compounds of type (V) (11 examples) are prepared using a simple and highly efficient method.
ChemInform Abstract: Synthesis of 4‐(2,2‐Dichlorocyclopropyl)phenol by Phase‐Transfer Catalysis.
Authors: OELSCHLAEGER H. + , PETERS H.‐J. , STANEK T.
Published: May 2016

In order to examine biotransformations of the active agent ciprofibrate (V), the parent phenol (IV) is prepared.
ChemInform Abstract: Synthesis and Biological Activity of α,β‐Unsaturated Ketones in the 2‐Carboxyfuran Series.
Authors: ZIGANSHINA E. KH. , KAZANTSEVA V. M. , PISAREVA V. S. , KORSHUNOV S. P.
Published: May 2016

The acetylfuran (II) reacts with the aromatic aldehydes (I) to give the α,β‐unsaturated ketones (III) or (IV) depending on the reaction conditions.
ChemInform Abstract: Indoles from Nifedipine.
Authors: BORN L. , GOLDMANN S. , WUENSCHE C. + , GOERLITZER K. + , BUSS D.
Published: May 2016

In contrast to a previous communication, photolysis of nifedipine (Ia) in the presence of titanium trichloride yields the indole derivative (IIa), together with the fused lactam (IIIa).
ChemInform Abstract: Reaction of Phosphorous Acid Dialkylamides with N‐Hydroxyalkyl N′‐Substituted Thioureas. A New Method for the Synthesis of 2‐Iminothiazolidine and 2‐Iminoperhydro‐1,3‐thiazine Derivatives.
Authors: MIZRAKH L. I. , POLONSKAYA L. YU. , GVOZDETSKII A. N. , VASIL'EV A. M. , KARPUNINA L. B.
Published: May 2016

Reaction of the hydroxyalkylthioureas (I) with hexaethylphosphorous triamide does not give the expected oxazaphospha heterocycles, but the thiazolidines (IIa) ‐ (IId) or the thiazine (IIe) are formed instead.
ChemInform Abstract: Synthesis of 1,2,4‐Dioxazolidines by the Ozonolysis of Vinyl Ethers in the Presence of Imines. The First (3 + 2)Cycloaddition of Carbonyl Oxide to the Carbon‐Nitrogen Double Bond.
Authors: MORI M. , NOJIMA M. , KUSABAYASHI S. , MCCULLOUGH K. J.
Published: May 2016

Carbonyl oxides, generated by ozonolysis of the enol ethers (I), react with the imines (II) in an inert solvent, yielding the cycloadducts (III).
ChemInform Abstract: Enantioselective Hantzsch Dihydropyridine Synthesis via Metalated Chiral Alkyl Acetoacetate Hydrazones.
Authors: ENDERS D. , MUELLER S. + , DEMIR A. S.
Published: May 2016

The acetoacetates (I) are converted to the chiral hydrazones (III) which are lithiated and then coupled with the benzylideneacetoacetates (IV), forming the intermediates (V).
ChemInform Abstract: Reactions of N‐Alkoxycyclimonium Compounds. Part 16. Reactions of N‐Methoxyquinolinium Compounds with C‐ and Ambident C‐N‐Nucleophiles.
Authors: MEHNERT J. , SCHNEKENBURGER J.
Published: May 2016

The 1‐(methoxy)cyanoquinolinium perchlorates (I) and (VI) are coupled with various enamino or 1,3‐dicarbonyl derivatives to give 2‐substituted quinolines or 1,2‐dihydroquinolines depending on the reaction conditions.
ChemInform Abstract: An Efficient Synthesis of 3‐Acylcarbazoles and Observations on the Further Elaboration of These Compounds to 6H‐Pyridocarbazoles.
Authors: HOGAN I. , JENKINS P. , SAINSBURY M.
Published: May 2016

The Mannich base (I) reacts with the ketones (II) to give the indolyl ketones (III) which are cyclized upon treatment with acetic acid to yield the methylenetetrahydrocarbazoles (IV) and the tautomer (Vc).
ChemInform Abstract: Azepinones. Part 1. Formation of Simple 1H‐Azepin‐3(2H)‐ones (IV) by Gas‐Phase Pyrolysis: Crystal and Molecular Structure of 1‐Phenyl‐1H‐azepin‐3(2H)‐one (IVb).
Authors: BLAKE A. J. , MCNAB H. , MONAHAN L. C.
Published: May 2016

Flash vacuum pyrolysis of the Meldrum's acid derivatives (III) (already known for their lower vinylogues to give pyrrol‐3‐ones/3‐hydroxypyrroles) yields the azepinones (IV).
ChemInform Abstract: Investigation of the Ternary System Hexaalkylphosphorous Triamide ‐ Tetrahalomethane ‐ Silicon Pseudohalide.
Authors: MARCHENKO A. P. , SHAPOSHNIKOV S. I. , KOIDAN G. N. , KHARCHENKO A. V. , PINCHUK A. M.
Published: May 2016

The phosphorous triamides (II) are coupled with the tetrahalomethanes (III) or the trichlorotrifluoroethane (VI) and trimethylsilyl isocyanate (Ia) to give the N'''‐acylphosphorimidic triamides (IV) or (VII) and the silanes (V) or (VIII).
ChemInform Abstract: Synthesis and Characterization of Cyanoborane Adducts of Dialkyl ((Dialkylamino)methyl)phosphonates.
Authors: KAUSHIK M. P. , CHARANDABI M. R. M. D. , ETTEL M. L. , LOFTHOUSE T. J. , MORSE K. W.
Published: May 2016

Three methods for preparation of the cyanoborane adducts (III) are compared from which that shown in the scheme is the method of choice due to the absence of decomposition products, good yields, and ease of purification.
ChemInform Abstract: Reaction of tert‐Butylethylthiophosphine with Carboxylic Acid Chlorides.
Authors: SINYASHIN O. G. , GORSHUNOV I. YU. , CHERNOV A. N. , IL'YASOV A. V. , BATYEVA E. S. , PUDOVIK A. N.
Published: May 2016

The thiophosphinite (I) is coupled with the acyl chlorides (II) in the presence of triethylamine to give the acylthiophosphinites (III).
ChemInform Abstract: Excited‐State Properties of Dioxorhenium(V). Generation and Reactivity of Dioxorhenium(VI).
Authors: THORP H. H. , VAN HOUTEN J. , GRAY H. B.
Published: May 2016

The excited‐state properties of the trans complex (Ia) are investigated in acetonitrile solutions.
ChemInform Abstract: Synthesis and Evaluation of Biological Activity of Binuclear Cisplatin Analogues with Polyoxypropylene‐α,ω‐diamines as the Bridging Groups.
Authors: GRAVINA A. , PASINI A. , PINCIROLI F. , MICHELONI A. , ZUNINO F.
Published: May 2016

The bridged Pt(II),Pt(II) complexes (III) are obtained by the 2:1 molar reaction shown in the scheme.
ChemInform Abstract: Acid‐Catalyzed Aldehyde ‐ Indole Reaction, Synthesis of Diindolylantipyrylmethane Dyes.
Authors: AKGUEN E. + , TUNAH M.
Published: May 2016

The indoles (I) or (IV) undergo acid‐induced coupling with antipyrine‐4‐carbaldehyde (II) to give the diindolylantipyrylmethanes (III) and (V) respectively.
ChemInform Abstract: Synthesis and Spectroscopic Study of 13C‐Labeled Citric Acids.
Authors: WINKEL C. , BUITENHUIS E. G. , LUGTENBURG J.
Published: May 2016

A synthetic scheme is developed, in which citric acid (VI) can be prepared in such a way that each carbon or any combination of carbon atoms can be labeled with 13C and without the use of complex reagents or reaction conditions.
ChemInform Abstract: Thermodynamic Stability of Gaseous Scandium Silicides and Germanides.
Authors: KINGCADE J. E. JUN. , GINGERICH K. A.
Published: May 2016

In the course of high‐temp.
ChemInform Abstract: Impedance and Cyclic Voltammetry of Ammonium Tetrasulfide in Liquid Ammonia Solutions.
Authors: JEHOULET C. , DEMORTIER A. , LELIEUR J.‐P.
Published: May 2016

In (NH4)2S4/NH3 solutions the disproportionation of S42‐ leads to the presence of S3‐ in equilibrium with S62‐.
ChemInform Abstract: Comparing Regenerative SO2 Sorbents Using TG: The SRO Test.Five synthetic sorbents for regenerative desulfurization in fluidized bed combustion of coal, consisting of calcium oxide supported by Al2
Authors: DUISTERWINKEL A. E. , DOESBURG E. B. M. , HAKVOORT G.
Published: May 2016

O3 or TiO2, are tested for their sulfation, regeneration, and cyclic behavior using thermogravimetry.
ChemInform Abstract: Thermal Solid‐Solid Interaction Between Ferric Oxide and Al2O3‐Doped Nickel Oxide.
Authors: EL‐SHOBAKY G. A. , IBRAHIM A. A.
Published: May 2016

Using DTA, TG, DTG, and XRD methods it is shown that addition of Al2O3 to basic nickel carbonate enhances the solid‐solid interaction between NiO and α‐Fe2O3 to yield NiFe2O4 (trevorite) at temp. between 800 and 1000 °C. This effect is proportional to the amount of the dopant up to a maximum at 5 mol%.
ChemInform Abstract: NaU2Cl6, a Reduced Metallic Chloride of Uranium.
Authors: SCHLEID TH. , MEYER G.
Published: May 2016

The new compound (III), prepared by metallothermic reduction as outlined in the scheme, is the first uranium halide compound which formally has an oxidation state of less than +3, i.e., +2.5.
ChemInform Abstract: Electrophilic Addition of α‐Fluoroalkyl Ethers to Olefins.
Authors: LEBEDEV M. YU. , BALENKOVA E. S.
Published: May 2016

The reactivity of the fluoromethyl alkyl ethers (I) toward alkenes is investigated for the first time.
ChemInform Abstract: Reactions of Aliphatic Diazo Compounds. Part 6. Photo‐ and Radical‐Induced Reactions with O2 Participation
Authors: STOESSER R. + , THURNER J.‐U. , WARNCKE W. , TOMASCHEWSKI G. , TAPLICK T.
Published: May 2016

Radical intermediates may be observed in the decomposition of diazo compounds (I) in the presence of O2 in solution using their reaction with amine (II) to give the nitroxyl radical (III) which can be monitored by EPR.
ChemInform Abstract: Trimethylsilyl Esters: Protection of Carboxylic Acids During Hydroboration Reactions.
Authors: KABALKA G. W. , BIERER D. E.
Published: May 2016

Trimethylsilyl esters of unsaturated acids ‐ readily available from the corresponding acids by treatment with Me3SiCl ‐ allow the preparation of functionalized carboxylic acids (cf.
ChemInform Abstract: N‐Substituted Lithium 2‐Lithioallylamines: New Intermediates in Synthesis.
Authors: BARLUENGA J. , FOUBELO F. , FANANAS F. J. , YUS M.
Published: May 2016

The dilithiated title intermediates (IV) react with a variety of electrophiles such as (V) to yield the functionalized allyl amines (VI).
ChemInform Abstract: Unexpected Products from the Reactions of 1‐(Bromodifluoromethyl)‐2‐bromocyclohexanes with Potassium Hydroxide.
Authors: ELSHEIMER S. , MICHAEL M. , LANDAVAZO A. , SLATTERY D. K. , WEEKS J.
Published: May 2016

The halogenated methylcyclohexanes (III), obtained by addition of dibromodifluoromethane (II) to cyclohexene (I), are treated with aqueous potassium hydroxide.
ChemInform Abstract: Photoisomerization of 3‐Phenylnorbornadiene‐2‐carbaldehyde and Its Imines.
Authors: CHERNOIVANOV V. A. , DUBONOSOV A. D. , MINKIN V. I. , BREN' V. A. , LYUBARSKAYA A. E.
Published: May 2016

Photolysis of the title compound (I) affords the quadricyclane (II).
ChemInform Abstract: Synthesis and “Nootropic” Activity of Oxamoylamino Acids.
Authors: PETYUNIN G. P. , ZAKS A. S. , PETYUNINA V. N. , DMITRIEVSKAYA ZH. V. , KAPITONENKO T. A.
Published: May 2016

The ethyl oxamates (I) or (IV) are coupled with the aminocarboxylic acids (II) to give the oxamoylamino acids (III) or (V).
ChemInform Abstract: Photostimulated Reaction of Carbanions from α,β‐Unsaturated Nitriles with Aryl Halides by the SRN1 Mechanism.
Authors: ALONSO R. A. , AUSTIN E. , ROSSI R. A.
Published: May 2016

The carbanion derived from cyclohexenylacetonitriles (I) reacts with p‐bromoanisole (II) under irradiation, forming mainly a mixture of the two monoadducts (III) and (IV), together with the bisadduct (V) and anisole (VI).
ChemInform Abstract: Convenient and General Access to Substituted Butenolides Employing Grignard Reagents.
Authors: YODA H. , IWABUCHI M. , FUKUYO A. , TANAKA M. , TAKABE K.
Published: May 2016

Nucleophilic reaction of Grignard reagents with the 4‐hydroxybutenolides (I) represents a facile and reliable method for the preparation of 4‐alkyl derivatives (14 examples given in all).
ChemInform Abstract: Perfluoromethylthio Heterocycles. Part 25. Synthesis of N‐Substituted 2,3,4,5‐Tetrakis(trifluoromethylthio)pyrroles.
Authors: HAAS A. , KLARE C.
Published: May 2016

Tetrakis(trifluoromethylthio)pyrrole (I) serves as starting material for the preparation of several N‐substituted tetrakis(trifluoromethylthio)pyrroles.
ChemInform Abstract: A One‐Step Synthesis of 4‐Cyanopyrazoles.
Authors: HASSANEEN H. M. , EAD H. A. , ELWAN N. M. , SHAWALI A. S.
Published: May 2016

Fumaronitrile (II) and the nitrilimines, generated by dehydrohalogenation of the hydrazonoyl chlorides (I), undergo cycloaddition with concomitant dehydrocyanation, producing the 4‐cyanopyrazoles (III).
ChemInform Abstract: Vinylogous Carbinolamine Tumor Inhibitors. Part 22. Design, Synthesis, Antineoplastic Activity, and Chemical Properties of Bis(carbamate) Derivatives of 4,5‐Bis(hydroxymethyl)imidazole.
Authors: ANDERSON W. K. , BHATTACHARJEE D. , HOUSTON D. M.
Published: May 2016

Coupling of the bis(hydroxymethyl)imidazoles (I) with the isocyanates (II) produces the biscarbamate derivatives (III).
ChemInform Abstract: Reaction of 5‐Trifluoromethyltetrazole with Unsaturated Compounds.
Authors: BOGENS A. K. , GAREEV G. A. , ALEKSEEVA N. V. , VERESHCHAGIN L. I.
Published: May 2016

Nothing is known to date about the reactivity of the highly acidic title compound (I).
ChemInform Abstract: The 1‐Aza‐Cope Rearrangement. Part 2.
Authors: WU P.‐L. , FOWLER F. W.
Published: May 2016

Gas‐phase thermolysis of the O,N‐bis(methoxycarbonyl)hydroxylamines (I) yields the tetrahydropyridines (II) via 1‐aza‐cope rearrangement of an intermediate azadiene.
ChemInform Abstract: Synthesis of 3‐Cyano‐6‐methyl‐4‐pyridyl‐ and 3‐Cyano‐4‐methyl‐6‐pyridyl‐2(1H)‐(thio)pyridones.
Authors: HANFELD V. , LEISTNER S. , WAGNER G.
Published: May 2016

Reaction of the pyridylacetones (I) with the cyanothioacetamide (II) leads to the formation of the isomeric pyridinethiones (III) and (IV) which are separated by crystallization.
ChemInform Abstract: An Approach to the Enantioselective Synthesis of 2‐Azabicyclo(2.2.1)hept‐5‐en‐3‐one.
Authors: CAAMANO O. , EIRIN A. , FERNANDEZ F. , GOMEZ G. , URIARTE E.
Published: May 2016

(+)‐10‐Camphorsulfonic acid (I) is converted into the chiral sulfonyl nitrile (+)‐(V) which undergoes cycloaddition with cyclopentadiene (VI) to produce the bicyclic sulfonylimine (VII).
ChemInform Abstract: A New Synthesis of 5‐Aza(2.3.3)cyclazines by (8 + 2)Cycloaddition of 3‐Imino‐3H‐pyrrolizines with Dimethyl Acetylenedicarboxylate.
Authors: TOMINAGA Y. , MATSUOKA Y. , HOSOMI A.
Published: May 2016

Methyl pyrrole‐2‐dithiocarboxylate (I) is coupled with tetracyanoethylene oxide (II) to give the unsaturated dinitrile (III).
ChemInform Abstract: Synthesis and Structure‐Activity Relationships of 2‐Substituted 6‐(Dimethylamino)‐9‐(4‐methylbenzyl)‐9H‐purines with Antirhinovirus Activity.
Authors: KELLEY J. L. , LINN J. A. , SELWAY J. W. T.
Published: May 2016

The title compounds, e.g. (IX) and (XII), are synthesized as shown in the reaction scheme and by related methods.
ChemInform Abstract: Pyrazine Chemistry. Part 14. Preparation and Oxygenation of Pyrazines and Some Reactions of the Product Peroxides.
Authors: DAWSON I. M. , PAPPIN A. J. , PECK C. J. , SAMMES P. G.
Published: May 2016

As an approach to the heterocyclic part of the antibiotic bicyclomycin the reaction of pyrazines, e.g. (III), with singlet oxygen is carried out.
ChemInform Abstract: Synthesis of Some New 3‐Substituted 4(3H)‐Quinazolinone and 4(3H)‐Quinazolinethione Derivatives and Related Fused Biheterocyclic Ring Systems.
Authors: ABDEL‐MEGEED M. F. , TENIOU A.
Published: May 2016

The reaction of 2‐phenyl‐4(3H)‐quinazolinone (Ia), the corresponding thione (Ib), or the 3‐amino analogues (IV) with the aryl iso(thio)cyanates (II) yields the substitution products (III) and (V).
ChemInform Abstract: Synthesis of 3‐Alkyl‐5‐phenyl‐2‐thioxo‐3H‐1,2‐dihydrocycloalka(4,5)thieno(2,3‐e)(1,2,4)triazepines.
Authors: RICHTER P. , OERTEL D. , OERTEL F.
Published: May 2016

The aminothiophenes (I) react with thiophosgene (II) to give the corresponding isothiocyanates (III) which are coupled with the alkylhydrazines (IV), producing the thiosemicarbazides (V).
ChemInform Abstract: The Preparation of Pentafluorophenyl Antimony(III) and Antimony(V) Halides and Mixed Halides.
Authors: RAJ P. , AGGARWAL A. K. , SAXENA A. K.
Published: May 2016

Tris(pentafluorophenyl)antimony (I) undergoes synproportionation reactions with SbCl3 (II) to give tris(pentafluorophenyl)antimony dichloride (III) or bis(pentafluorophenyl)antimony chloride (IV), depending on the educt ratio.
ChemInform Abstract: Synthesis and Absolute Configuration of Optically Active Selenoxides. X‐Ray Molecular Structure of (‐)Se‐4‐Menthyloxycarbonylphenyl 2,4,6‐Tri‐isopropylphenyl Selenoxide.
Authors: SHIMIZU T. , KIKUCHI K. , ISHIKAWA Y. , IKEMOTO I. , KOBAYASHI M. , KAMIGATA N.
Published: May 2016

Enantiomerically pure, stable 4‐(methoxycarbonyl)phenyl selenoxide (‐)‐(VII) is isolated by fractional recrystallization of diastereoisomeric 4‐((‐)menthyloxycarbonyl)phenyl selenoxide (V) followed by removal of the chiral source.
ChemInform Abstract: Synthesis, Structure and Properties of Compounds with a Chalcogen‐Nitrogen Bond. Part 12. Synthesis of N‐Sulfonyltellurimides by Reaction of Tellurides with the Sodium Salts of N‐Chlorosulfonamides.
Authors: NADDAKA V. I. , AVANESYAN K. V. , CHERKINSKAYA M. L.
Published: May 2016

The reaction between the diaryl tellurides (I) and the hydrates of chloramine‐B (IIa) or chloramine‐T (IIb) conducted in polar solvents (e.g.
ChemInform Abstract: Reactions of Phenyltellurium(VI) Fluorides with Alcohols, Amines, and Silicon Compounds.
Authors: JANZEN A. F. , ALAM K. , BLACKBURN B. J.
Published: May 2016

Several phenyltellurium(VI) fluorides, such as PhTeF5 (I), trans‐Ph2TeF4 (V), and mer‐Ph3TeF3 (VIII), are treated with the trimethylsilyl derivatives (II), methanol (IV), or dimethylamine (IX) to give the corresponding substitution products.
ChemInform Abstract: Reaction of Molybdenum Complexes Containing Phosphite with Boron Trihalides. Formation of Cationic Molybdenum Phosphenium Complexes.
Authors: NAKAZAWA H. , OHTA M. , MIYOSHI K. , YONEDA H.
Published: May 2016

The Mo fac‐complexes (I) containing a phosphite ligand react with two equiv. BF3·OEt2 to afford mono OR/F exchange products, the fac‐complexes (II).
ChemInform Abstract: Synthesis and Structure of Tetracarbonyl(η2‐1,1‐dichloro‐1‐silaphenalene)iron.
Authors: AFANASOVA O. B. , GUDKOVA N. G. , KIRILLOVA N. I. , GUSEV A. I. , SOKOLOVA T. M. , CHERNYSHEV E. A.
Published: May 2016

The orange‐coloured title complex (III) is prepared by treatment of the dichlorosilaphenalene (I) with diiron nonacarbonyl (II).
ChemInform Abstract: “Furlongelb” ‐ A 1,3‐Dioxepin Derivative.
Authors: HENNIG L. , MANN G. , RISSANEN K.
Published: May 2016

The title compound which can be prepared, e.g., from (I) and (II) had been assigned structure (IV) by Westoeoe (1953); it was later found that in solution an equilibrium exists between the title compound, assumed to be (IV), and an isomer.
ChemInform Abstract: The Conversion of 7‐Acetoxyroyleanone to 14‐Methoxytaxodione.
Authors: FAUCHER A.‐M. , BURNELL R. H.
Published: May 2016

The desired C‐7 → C‐6 transposition of the oxygen function in (I) requires a multi‐step procedure due to the fragile nature of compounds of this kind.
ChemInform Abstract: The Allylic Oxidation of Geraniol Catalyzed by Cytochrome P‐450Cath., Proceeding with Retention of Configuration.
Authors: FRETZ H. , WOGGON W.‐D. , VOGES R.
Published: May 2016

Incubation of the chiral geraniol (I) with microsomal cytochrome P‐450Cath.
ChemInform Abstract: The Stereochemistry and Hydrolysis of Gibberellin 16,17‐Epoxides. X‐Ray Molecular Structures of ent‐17‐Acetoxy‐1α,10α‐epoxy‐2β,3α,13,16β‐tetrahydro# xy‐20‐norgibberella‐7,19‐dioic Acid 19,2‐Lactone 7‐Methyl Ester (IV) and of ent‐17‐Chloro‐1α,10α‐epoxy‐2β,3α,13,16β‐tetrahydrox# y‐20‐norgibberella‐7,19‐dioic Acid 19,2‐Lactone 7‐Methyl Ester (V).
Authors: AVENT A. G. , BAYNHAM M. K. , HANSON J. R. , HITCHCOCK P. B. , DE OLIVEIRA B. H.
Published: May 2016

The epoxidation of the gibberellates (Ia), (Ic), and (II) is studied.
ChemInform Abstract: Facile Synthesis of L‐Kynurenine.
Authors: SALITURO F. G. , MCDONALD I. A.
Published: May 2016

The N‐protected aniline (I) is subjected to o‐metalation with trimethylstannyl chloride (II), yielding the stannylaniline (III).
ChemInform Abstract: Vinyl Carbanions. Part 36. Synthesis of 3‐Deoxy‐D‐manno‐2‐octulosonic Acid (KDO) and Derivatives.
Authors: ESSWEIN A. , BETZ R. , SCHMIDT R. R.
Published: May 2016

The title compound KDO (VIII), an integral constituent of the lipopolysaccharide of Gram‐negative bacteria, as well as the KDO derivatives (IX), a valuable starting material for the KDO α‐glycoside synthesis, and other KDO derivatives are prepared starting from the pyruvate acetal (I).
ChemInform Abstract: New Halogenation Reagent Systems Useful for the Mild One‐Step Conversion of Alcohols into Iodides or Bromides.
Authors: CLASSON B. , LIU Z. , SAMUELSSON B.
Published: May 2016

Carbohydrates with free HO‐groups such as (I) are converted to the corresponding halides such as (II) by a system consisting of the elemental halogen, a diphenylphosphane derivative, and imidazole.
ChemInform Abstract: Pictet‐Spengler Reactions in Aprotic Media. Nb‐Benzyl‐Promoted Retention of Optical Activity in the Synthesis of an Indolo‐Substituted Azabicyclo(3.3.1)nonane, a Key Template for the Synthesis of Macroline Alkaloids.
Authors: ZHANG L.‐H. , COOK J. M.
Published: May 2016

D‐(+)‐Tryptophan (+)‐(I) is converted into the optically active methyl ester (VII) which undergoes cyclocondensation with the 3‐formylpropionate (VIII) to give the diastereomeric dihydroindolopyridines (IX) and (X).
ChemInform Abstract: Synthesis of 2‐(4‐Piperidylmethyl)indoles. Intermediates for the Synthesis of Strychnos Alkaloids.
Authors: BONJOCH J. , QUIRANTE J. , LINARES A. , BOSCH J.
Published: May 2016

Methoxycarbonylation of the cis‐acetonylpiperidine (I) with dimethyl carbonate (II) and subsequent coupling with o‐fluoronitrobenzene (IV) give the β‐keto ester (V) which is converted into the indole (VII) by demethoxycarbonylation and cyclizative hydrogenation.
ChemInform Abstract: Acyclic Analogues of 3′‐Azido‐3′‐deoxythymidine as Potential Antiviral Agents. Nucleoside Synthesis by Michael Addition.
Authors: SCHEINER P. , GEER A. , BUCKNOR A.‐M. , IMBACH J.‐L. , SCHINAZI R. F.
Published: May 2016

The synthesis of the compounds (VIII), (IX), and (XIII) which are acyclic analogues of 3'‐azido‐3'‐deoxythymidine (XIV), is performed as shown in the reaction sequence.
ChemInform Abstract: 1′,2′‐seco‐Dideoxynucleosides as Potential Anti‐HIV Agents.
Authors: ABUSHANAB E. , SARMA M. S. P.
Published: May 2016

Regiospecific addition of methylmagnesium chloride (II) to the epoxide (I) leads to the formation of (2S)‐1‐O‐benzylbutane‐1,2‐diol (III), from which the protected 1',2'‐seco‐nucleosides (IV) are obtained.
ChemInform Abstract: Synthesis of 3′‐Cyano‐3′‐deoxy‐β‐D‐arabino‐nucleosides.
Authors: HAEBICH D. + , BARTH W.
Published: May 2016

The compounds (III) mentioned in the title are prepared by regioselective ring cleavage of the lyxo‐epoxides (I) with cyanodiethylaluminum (II).
ChemInform Abstract: Depsidone Synthesis. Part 24. The Synthesis of Epiphorellic Acid 2. A Pseudo‐Depsidone and X‐Ray Crystal Structure of a Grisadienedione Epoxide.
Authors: COMBER M. F. , SARGENT M. V. , SKELTON B. W. , WHITE A. H.
Published: May 2016

Pseudo‐depsidones are a small group of lichen metabolites.
ChemInform Abstract: Crystal Structures, Bonds, and Reliance in MX (M: La, Ce...Yb and Sc, Ti...Zn; X: S, Se, Te)
Authors: OUDET X.
Published: May 2016

Review: (a review also including the phase transformation γ‐Ce ⇌ α‐Ce, and the introduction of the notion of reliance, which enlightens the notion of valence and is closely related to the notion of intermediate and fluctuating valences; 49 refs.
ChemInform Abstract: Electronic Spin Resonance Spectra of SiH3 Radicals Trapped in the Low Temperature Matrix of Nonmagnetic Isotopes of Xenon.
Authors: NAKAMURA K. , OKAMOTO M. , TAKAYANAGI T. , KAWACHI T. , SHIMOKOSHI K. , SATO S.
Published: May 2016

SiH3 radicals, generated by the reaction of SiH4 with H atoms produced by photolysis of HI, are trapped in a xenon matrix enriched with nonmagnetic isotopes (< 0.4% magnetic isotopes).
ChemInform Abstract: Comparison Between Mo‐Mo and W‐W Bonding in Oxide Clusters: Crystal Structure of Zn2MoW2O8 Determined by Time‐of‐Flight Powder Neutron Diffraction.
Authors: CHEETHAM A. K. , HIBBLE S. J. , WAKERLEY H. R.
Published: May 2016

The title compound is prepared by heating stoichiometric amounts of ZnO, MoO3, WO3, and W metal at 500 °C for 15 h and 900 °C for 28 h. Zn2MoW2O8 crystallizes in the hexagonal space group P63mc.
ChemInform Abstract: Crystal Structure of Cadmium Cyclohexaphosphate Hexahydrate: Cd3P6O18·6 H2O.
Authors: AVERBUCH‐POUCHOT M. T.
Published: May 2016

The title compound (III) crystallizes in space group R3 with Z = 6. The cyclic (P6O18)6‐ anions exhibit a threefold symmetry.
ChemInform Abstract: Molecular and Electronic Structure of Electron‐Transfer Active Main‐Group Organometallics.
Authors: BAUMGARTEN J. , BESSENBACHER C. , KAIM W. , STAHL T.
Published: May 2016

The molecular structure of the single electron transfer reagent (I) (space group P1, Z=1) shows a planar ring system with eight conjugating π electrons, effectively shielded N‐Si bonds, and nonbonded contacts between ring and isopropyl hydrogen atoms.
ChemInform Abstract: Use of Hexamethylphosphoramide (HMPA) in the Alkylation of Aromatic Amines: Synthesis of Azetidines, Pyrrolidines, Piperidines and Hexahydroazepines.
Authors: JUARISTI E. , MADRIGAL D.
Published: May 2016

The title compounds (III) and, similarly, (IV) and (V) can be prepared by direct alkylation of p‐toluidine (II) with tosylates or mesylates such as (I).
ChemInform Abstract: Diastereoselective (2,3)Wittig Rearrangement of Tertiary α‐Lithio Ethers.
Authors: BALESTRA M. , KALLMERTEN J.
Published: May 2016

Various tributylstannylmethyl ethers, e.g. (I), are transmetalated with butyllithium to form the corresponding lithioethyl ethers which perform directly a (2,3)sigmatropic rearrangement to yield diastereomerically pure homologous alcohols, e.g. (II).
ChemInform Abstract: The First Intermolecular (2 + 2)Photocycloadditions of 2,5‐Cyclohexadien‐1‐ones to Alkenes.
Authors: SCHULTZ A. G. , TAVERAS A. G.
Published: May 2016

The butenylcyclohexadienones (I) and (VII) undergo photochemical ring closure, forming the tricyclic enones (II) or (VIII).
ChemInform Abstract: High Pressure‐Temperature Aqueous Oxidations. Part 4. A Kinetic Study of the Oxidation and Enolization of Cyclohexanone in the Presence of Catalytic Metal Ions.
Authors: THOMAS J. W. , TAYLOR J. E.
Published: May 2016

The oxidation of (II) is first order in (II), zero order in oxygen, and one‐half order in Cu ion.
ChemInform Abstract: Unusual Aminolysis of a Carboxylic Acid‐Carbonic Acid Anhydride.
Authors: HENKLEIN P. , GLOEDE J.
Published: May 2016

In connection with the synthesis of the aspartic acid antagonist (VIb), its precursor (VIa) is required.
ChemInform Abstract: The Use of Organotin Chemistry to Achieve Chemospecificity in a One‐Pot (3 + 2) Annulation Sequence.
Authors: LEE T. V. , RICHARDSON K. A. , ELLIS K. L. , VISANI N.
Published: May 2016

A highly controlled intermolecular reaction of the actal‐stannane (I) with silyl enol ethers such as (II), followed by intramolecular reaction on the formed ketone, e.g. (III), by the C‐Sn bond, is the basis for a highly useful one‐pot (3 + 2) annulation sequence affording products such as (IV).
ChemInform Abstract: Kinetic and Spectroscopic Studies on the Thermal Decomposition of 2,2,6‐Trimethyl‐4H‐1,3‐dioxin‐4‐one: Generation of Acetylketene.
Authors: CLEMENS R. J. , WITZEMAN J. S.
Published: May 2016

The decomposition of (I) to acetylketene (II) and acetone (III) is reversible (half‐life of (I) 4‐5 min at 120 °C); the reaction of (I) (via (II)) with representative nucleophiles (IV) is a first‐order process.
ChemInform Abstract: A Bifunctional Anthraquinone Synthon.
Authors: TIUS M. A. , GOMEZ‐GALENO J. , ZAIDI J. H.
Published: May 2016

The bis(methoxymethyloxy)anthraquinone (I) is converted to the corresponding anthracene (II) and then consecutively treated with tert‐butyllithium and chlorotrimethylstannane (III) to form the di‐ (IV) or monostannylated compounds (V) depending on the reaction conditions.
ChemInform Abstract: Transannular Aldol Condensations within Macrocyclic Lactones: A Novel Approach to 8‐Membered Carbocyclic Rings.
Authors: KARIM M. R. , SAMPSON P.
Published: May 2016

The key step in the preparation of the macrocyclic keto lactone (VII) is the cleavage of cyclohexanone (I) with acetoxymethyl vinyl ketone (II) in the presence of TiCl3 and H2O2, producing the ω‐acetoxy keto ester (IV) which is hydrolyzed to give the alcohol (V).
ChemInform Abstract: Azomethine Ylids from Diethyl Aminomalonate.
Authors: HUSINEC S. , SAVIC V. , PORTER A. E. A.
Published: May 2016

Paraformaldehyde (I) and diethyl aminomalonate (II) form the intermediate ylid (III) which undergoes cycloaddition reaction with active dipolarophiles, e.g. (IV) or (VI), producing pyrrole derivatives such as (V) or (VII).
ChemInform Abstract: A Facile Synthesis of Dialkoxycarbonyl, Dicyano, and Alkoxycarbonyl(cyano) Ketene Ethylene Acetals.
Authors: NEIDLEIN R. , KIKELJ D.
Published: May 2016

The compounds (IV) mentioned in the title are prepared by the reaction of malononitrile, dialkyl malonates, and alkyl cyanoacetates respectively with 2‐chloroethyl chloroformate (III).
ChemInform Abstract: Synthesis of 4‐Unsubstituted Isothiazoles.
Authors: LUCCHESINI F. , PICCI N. , POCCI M. , DE MUNNO A. , BERTINI V.
Published: May 2016

Consecutive treatment of the α‐oxoalkynes (I) with hydroxylamine‐O‐sulfonic acid (II), solid sodium hydrogen carbonate, and sodium hydrogen sulfide (III) yields the isothiazoles (IV), together with the thiazole (Vd) and the di(cyanovinyl) sulfide (VIa).
ChemInform Abstract: The Role of Organic Tellurides as Accumulators and Exchangers of Carbon Radicals.
Authors: BARTON D. H. R. , OZBALIK N. , SARMA J. C.
Published: May 2016

N‐(Isopropylcarbonyloxy)‐2‐thiopyridone (I) is irradiated in the presence of di(isopropyl) telluride (III) to generate isopropyl radicals which are trapped by the olefins (II), yielding the 2‐(alkylthio)pyridines (IV) and (V).
ChemInform Abstract: Preparation of New Benzimidazole Derivatives from N‐((Methylthio)thiocarbonylmethyl)azinium Salts.
Authors: CUADRO A. M. , ALVAREZ‐BUILLA J. , VAQUERO J. J.
Published: May 2016

Reaction of the N‐phenacylpyridinium iodides (I) with carbon disulfide (II) and methyl iodide (III) gives the ylides (IV) which are cleaved on treatment with hydroiodic or tetrafluoroboric acid (V), producing the dithioesters (VI).
ChemInform Abstract: Cycloaromatization of α‐Oxo Ketene Dithioacetals with Lithioacetonitrile: A Facile Route for 4‐Substituted and 4,5‐Anellated Pyridines.
Authors: GUPTA A. K. , ILA H. , JUNJAPPA H.
Published: May 2016

The α‐oxo ketene dithioacetals (I) are coupled with lithioacetonitrile (II) to give the hydroxy nitriles (III) which are cyclized upon treatment with phosphoric acid to form the pyridines (IV).
ChemInform Abstract: Alkylation and Arylation of Pyrazines by Organotin Compounds.
Authors: WATANABE T. , HAYASHI K. , SAKURADA J. , OHKI M. , TAKAMATSU N. , HIROHATA H. , TAKEUCHI K. , YUASA K. , OHTA A.
Published: May 2016

The chloropyrazines (I) undergo Pd(0)‐catalyzed reaction with the organotin compounds (II) and (IV) to give the pyrazines (III) and (V).
ChemInform Abstract: Anellation of Quinoxaline by Sulfur‐Stabilized Carbanions.
Authors: VIERFOND J.‐M. , LEGENDRE L. , MAHUTEAU J. , MIOCQUE M.
Published: May 2016

Quinoxaline (I) undergoes cyclocondensation with sulfones and sulfoxides to give the hexahydrothienoquinoxalines as outlined in the reaction scheme.
ChemInform Abstract: 1,1,2,3‐Tetraphenylboratirene: First Isolation and Characterization of a Boratirene.
Authors: KROPP M. A. , SCHUSTER G. B.
Published: May 2016

Irradiation of the borate (I) gives the stable air‐ and water‐sensitive title compound (II), the first example of a new class of highly strained boron‐containing compounds (space group P21/c, Z=4).
ChemInform Abstract: Chemistry of Organolsilicon Compounds. Part 250. Preparation and Reactions of 1,1,4,4‐Tetrakis(trimethylsilyl)butane‐1,4‐diyl Dianion.
Authors: KIRA M. , HINO T. , KUBOTA Y. , MATSUYAMA N. , SAKURAI H.
Published: May 2016

1,1‐Bis(trimethylsilyl)ethene (I) forms the dianion salt (III) which produces the dimers (IV) upon hydrolysis.
ChemInform Abstract: Et3B‐Induced Radical Addition of Ph3SnH to Acetylenes and Its Application to Cyclization Reaction.
Authors: NOZAKI K. , OSHIMA K. , UTIMOTO K.
Published: May 2016

In the presence of BF3, the stannane (II) adds to alkynes such as (I) regioselectively, but non‐stereoselectively to give mixtures of the Eand Z‐alkenes (III) and (IV).
ChemInform Abstract: Organoboration of 3‐(Trimethylstannyl)‐2‐propynyl‐1‐ethers.
Authors: WRACKMEYER B. , GULDNER G. , ABU‐ORABI S. T.
Published: May 2016

Reaction of the propynyl ether (I) with trialkylboranes such as (II) with sterically non‐demanding substituents leads to new oxaborolanes such as (III) in quantitative yield.
ChemInform Abstract: New Molecular Hydrogen Iron(II) Complexes: Synthesis, Characterization, and Reactivity with Aryldiazonium Cations.
Authors: ALBERTIN G. , ANTONIUTTI S. , BORDIGNON E.
Published: May 2016

The dihydrogen‐Fe(II) complexes (III) are prepared according to the scheme.
ChemInform Abstract: The Formation of Substituted Ferrocenes in the Reaction Between Iron Atoms, Cyclopentadiene, and Alkynes.
Authors: CANTRELL R. D. , SHEVLIN P. B.
Published: May 2016

The example demonstrated in the scheme shows that cocondensation of iron atoms with cyclopentadiene and alkynes also incorporates the alkyne skeleton into a cyclopentadienyl ring leading to ferrocenes substituted on one of the cyclopentadienyl ring as well as the expected unsubstituted ferrocene.
ChemInform Abstract: The Electron‐Deficient Planar Tetrairon Cluster Fe4(CO)8L4 (L: Pyridine).
Authors: MEALLI C. , PROSERPIO D. M. , FACHINETTI G. , FUNAIOLI T. , FOCHI G. , ZANAZZI P. F.
Published: May 2016

The 56‐electron cluster (IV) is characterized by its magnetic moment and a single‐crystal diffraction study (space group P21/a, Z = 8).
ChemInform Abstract: The Asymmetric Synthesis of cis‐Substituted Cyclopropanecarboxylic Acid Derivatives.
Authors: AMBLER P. W. , DAVIES S. G.
Published: May 2016

Cyclopropanation of the racemic α,β‐unsaturated acyliron complexes (±)‐(I) with methylene iodide (II) in the presence of diethylzinc/ZnCl2 or triethylaluminum gives the diastereomeric cyclopropanes (III) and (IV) with predominance of (III).
ChemInform Abstract: Symmetric Addition of SO2 to Linear Bi‐ and Trinuclear Gold(I) Compounds. Partial Oxidation to Form (Au(μ‐(CH2)2PPh2))2(SO2)2 and Au2Pt(μ‐C,S‐CH2PPh2S)4(SO2)2.
Authors: KING C. , HEINRICH D. D. , GARZON G. , WANG J.‐C. , FACKLER J. P. JUN.
Published: May 2016

To explore possible metal‐metal bond formation during initial steps of oxidative additions, the title reaction is investigated.
ChemInform Abstract: Stereoselective Reactions. Part 15. Total Synthesis of (+)‐Ivalin by Utilizing Asymmetric Double Alkylation Reaction of α,β‐Unsaturated Aldimine.
Authors: TOMIOKA K. , MASUMI F. , YAMASHITA T. , KOGA K.
Published: May 2016

The key steps in the synthesis of the title compound (XVI), a representative of antileukemic eudesmane sesquiterpenes, are the new asym.
ChemInform Abstract: Stereoselective C‐C Bond Formation in Carbohydrates by Radical Cyclization Reactions. Part 1.
Authors: DE MESMAEKER A. , HOFFMANN P. , ERNST B.
Published: May 2016

The 2‐(haloethyl)glycal ethers (III) and (VIII) undergo radical‐induced cyclization, forming the fused tetrahydrofurans (IV) or (IX).
ChemInform Abstract: A Convenient Approach to the Synthesis of Prenyl‐, Furo‐ and Pyranoquinoline Alkaloids of the Rutaceae.
Authors: SHOBANA N. , YESHODA P. , SHANMUGAM P.
Published: May 2016

Treatment of the hydroxyquinolone (Ia) with excess prenyl bromide (II) and subsequent partial deallylation of the product (IIIa) with NaHTe represents a simple approach to the desired 3‐prenylquinolone (IVa), the important intermediate in the biogenesis of the Rutaceae alkaloids atanine (VIa), flindersine (VIIa), dictamnine and khaplofoline.
ChemInform Abstract: New Approach to C‐Aryl Glycosides Starting from Phenol and Glycosyl Fluoride. Lewis Acid‐Catalyzed Rearrangement of O‐Glycoside to C‐Glycoside.
Authors: MATSUMOTO T. , KATSUKI M. , SUZUKI K.
Published: May 2016

The glycosyl fluoride (I) reacts with the phenols (II) or (V) in the presence of various Lewis acids to form the substitution products (III) and (IV) ‐ with predominance of the C‐glycoside (III) ‐ or (VI).
ChemInform Abstract: Lanthanides in Organic Synthesis. Part 20. A Short Step Synthesis of Ferrulactone I.
Authors: MORIYA T. , HANDA Y. , INANAGA J. , YAMAGUCHI M.
Published: May 2016

Starting with geraniol (I), the ω‐bromoacetoxy aldehyde (III) is prepared.
ChemInform Abstract: Magneto‐Structural Correlations and Metal‐Metal Bonding in Exchange‐Coupled A3Mo2X9 (X: Cl, Br, I) Complexes.
Authors: STRANGER R. , SMITH P. W. , GREY I. E.
Published: May 2016

Structural and magnetic data are reported for the new salts A3Mo2Cl9 with A: Rb, NH4, RNH3 (R: Me, Et, Bu, C6H13), R2NH2 (R: Me, Et), and Me3NH, A3Mo2Br9 with A: Rb, Me4N, and A3Mo2I9 with A: Cs, EtNH3 as well as for some known A3Mo2X9‐type compounds.