bluuebunny/crossref_metadata_2025_split huggingface dataset:
Finite‐time Stability on a Class of Non‐autonomous SICNNs with Multi‐proportional Delays
Authors: Yu Yuehua 
Published: May 2016

AbstractThis paper is concerned with the problem of finite‐time stability for a class of non‐autonomous shunting inhibitory cellular neural networks with multi‐proportional delays. An explicit criterion for the finite‐time stability of the system has been proposed by employing the differential inequality techniques. Moreover, an illustrative example and its numerical simulations are given to demonstrate the effectiveness of the obtained result.
ChemInform Abstract: Structure of Calcium Fluoroborate, Ca5(BO3)3F.
Authors: LEI S. , HUANG Q. , ZHENG Y. , JIANG A. , CHEN C. 
Published: May 2016

AbstractA search for new nonlinear optical (NLO) crystals among the anhydrous borates leads to the preparation of the new NLO crystal Ca5(BO3)3F (flux method using CaCO3, H3BO3, and CaF2).
ChemInform Abstract: Luminescent Centers of Td Symmetry in “Cold” Activated ZnS‐Mn.
Authors: KYNEV K. , MANEVA N. , ANGELOV S. 
Published: May 2016

AbstractA yellow emitting phosphor with band maximum at 590‐595 nm is prepared by coprecipitation of ZnS and MnS using an excess of Na2S. The ESR spectrum of this phosphor shows the well known sextett characteristic for Mn2+ ions in tetrahedral environment (i.e.
ChemInform Abstract: Effects of Annealing Conditions of Electrodes on the Photovoltaic Properties of Sintered Cadmium Sulfide/Cadmium Telluride Solar Cells.
Authors: KIM C. S. , IM H. B. 
Published: May 2016

AbstractPolycrystalline n‐CdS/p‐CdTe solar cells are fabricated using a commercial carbon paint as ohmic contact for the CdTe layer and a silver paint mixed with 20% In powder as contact for CdS.
ChemInform Abstract: Reduction of Dioxygen at Polypyrrole‐Modified Electrodes with Incorporated Pt Particles.
Authors: VORK F. T. A. , BARENDRECHT E. 
Published: May 2016

AbstractElectrodes, which are electrocatalytically active for the reduction of O2 to H2O or H2O2 in aqueous media, are prepared by electrodeposition of Pt particles in a polypyrrole layer.
ChemInform Abstract: The Reaction Between Arenediazonium Tetrafluoroborates and Alkaline Thiocarboxylates in DMSO: A Convenient Access to Aryl Thiolesters and Other Aromatic Sulfur Derivatives.
Authors: PETRILLO G. , NOVI M. , GARBARINO G. , FILIBERTI M. 
Published: May 2016

AbstractThe title reaction in DMSO leads to aryl thiolesters of type (III) which can either be isolated, or hydrolyzed to give thiols such as (VI).
ChemInform Abstract: Boat/Chair Topographic Stereoselection During Anionic Oxy‐Cope Rearrangement of 1‐Alkenyl‐2‐cyclopentenyl‐endo‐norbornan‐2‐ols.
Authors: PAQUETTE L. A. , TELEHA C. A. , TAYLOR R. T. , MAYNARD G. D. , ROGERS R. D. , GALLUCCI J. C. , SPRINGER J. P. 
Published: May 2016

AbstractThe title compounds (III), (V), (VII), and (X) are synthesized by similar methods from readily available functionalized norbornanones, e.g. (I), as exemplified for (III).
ChemInform Abstract: Photochemical Oxidation of Organic Substrates by trans‐Dioxoruthenium(VI) and Osmium(VI) Complexes.
Authors: YAM V. W.‐W. , CHE C.‐M. 
Published: May 2016

AbstractThe alkenes (I) are oxidized upon irradiation in the presence of the complexes (II) or (IV) mentioned in the title to give the epoxides (III).
ChemInform Abstract: Concave Reagents. Part 4. Protonation of Nitronate Anions via Concave Pyridines. Stereoselective C‐Protonation versus Nef Reaction.
Authors: LUENING U. + , BAUMSTARK R. , MUELLER M. + , WANGNICK C. , SCHILLINGER F. 
Published: May 2016

AbstractProtonation of the nitronate anion (I) (generated by KOtBu treatment of (IV)) leads to the product (II) of O‐protonation and Nef reaction or to the products (III) and (IV) of cis‐ or trans‐ C‐protonation.
ChemInform Abstract: Stereoselective Syntheses of Alcohols. Part 33. Addition of E‐ and Z‐Pentenylboronates to Ketones.
Authors: HOFFMANN R. W. , SANDER T. 
Published: May 2016

AbstractThe isomerically pure Z‐ and E‐pentenylboronates (II) and (III) are added to ketones such as (I) to give the homoallyl alcohols (VI)‐(IX) with different stereoselectivities.
ChemInform Abstract: Asymmetric Synthesis of α‐Substituted Benzyl Alcohols via the Stereoselective Addition of Nucleophiles to Homochiral Tricarbonyl(η6‐o‐triisopropylsilylbenzaldehyde)chromium(V).
Authors: DAVIES S. G. , GOODFELLOW C. L. 
Published: May 2016

AbstractBenzaldehyde (I) is converted into the silylated chromium carbonyl complex (VII) which reacts with L‐valinol (VIII) in ether to yield a mixture of the imines (IX) and (X).
ChemInform Abstract: Synthesis of the Cyclophane Tetramethoxyturriane: A Derivative of the Phenolic Cyclophanes of Grevillea striata R. Br.
Authors: SARGENT M. V. , WANGCHAREONTRAKUL S. 
Published: May 2016

AbstractIn addition to the construction of the biphenylic bond in (IV), the oxidative coupling of the diyne (V) is the second key step in the synthesis of the title compound (VI).
ChemInform Abstract: A Facile Synthesis of Ethyl 3‐Aryl‐2,2‐dimethylcyclopropanecarboxylates, Intermediates for Pyrethroid Acaricides.
Authors: MITRA R. B. , MUTHUSUBRAMANIAN L. 
Published: May 2016

AbstractThe benzylidene(phenylsulfonyl)acetates (III) are coupled with the potassium salt (IV) of 2‐nitropropane, yielding the adducts (V), together with the desired cyclopropanes (VI).
ChemInform Abstract: Chiral Liquid Crystal Mesogens. Synthesis and Determination of Absolute Configuration of Mesogens with 4,4′‐Biphenanthryl Cores.
Authors: YAMAMURA K. , ONO S. , OGOSHI H. , MASUDA H. , KURODA Y. 
Published: May 2016

AbstractThe optically active dihydroxybiphenanthryl (I), obtained from the racemate by optical resolution on a chiral HPLC column, is alkylated with the alkyl halides (II) to produce the bisethers (III).
ChemInform Abstract: Trimethylsilyl Cyanide ‐ A Reagent for Umpolung. Part 18. Nucleophilic Acylation of α‐Chlorocarbonyl Compounds: A Novel and Diastereoselective Approach to Substituted α,β‐Epoxy Ketones.
Authors: HUENIG S. + , MARSCHNER C. 
Published: May 2016

AbstractAddition products such as (I), (V) or (VIII) of trimethylsilyl cyanide with α,β‐unsaturated aldehydes, furfural or benzaldehyde, resp., react with α‐chlorocarbonyl compounds such as (II) or (IX) via 1,4‐O,O‐silyl rearrangement and cyanide elimination to give the O‐trimethylsilyl acyloins (III), (VI) or (X).
ChemInform Abstract: Amberlyst‐15 Promoted Synthesis of Fused and Spiro γ‐Butyrolactones from β‐Hydroxy Esters.
Authors: BUNCE R. A. , DRUMRIGHT R. E. , TAYLOR V. L. 
Published: May 2016

AbstractThe β‐hydroxy esters (I), (III), and (V) undergo dehydration and subsequent cyclization upon refluxing in the presence of a sulfonic acid resin, forming the γ‐lactones (II), (IV), and (VI) respectively.
ChemInform Abstract: Synthetic Hydrophilic Porphyrins. Preparations and Spectra of Alkoxycarbonylmethyl and Carboxymethyl Pyridinium Porphyrins.
Authors: ARNOLD D. P. 
Published: May 2016

AbstractThe tetraester (IIa) is isolated as dark violet and hygroscopic microcrystals, whereas crystals of (IIb) rapidly degrade to form a red powder.
ChemInform Abstract: A Crown Ether Tetrathiafulvalene Cage
Authors: BECHER J. , HANSEN T. K. , MALHOTRA N. , BOJESEN G. , BOEWADT S. , VARMA K. S. , GIRMAY B. , KILBURN J. D. , UNDERHILL A. E. 
Published: May 2016

Abstract(V) (which shows two reversible one‐electron oxidation waves at +0.41 and +0.73 V in cyclic voltammetry vs.
ChemInform Abstract: Oxyfunctionalization of Hydrocarbons. Part 13. Electrophilic Oxygenation of Adamantane and Diamantane with Bis(trimethylsilyl) Peroxide/Trifluoromethanesulfonic Acid.
Authors: OLAH G. A. , ERNST T. D. , RAO C. B. , PRAKASH G. K. S. 
Published: May 2016

AbstractThe adamantane (I) is oxidized by bis(trimethylsilyl) peroxide in the presence of trifluoromethanesulfonic acid to give the oxahomoadamantane (II) as the main product.
ChemInform Abstract: Phosphorus‐Carbon Exchange Promoted by AlCl3: Reactivity of Heterocyclic Systems Containing the S‐P‐P Unit.
Authors: BACCOLINI G. , MEZZINA E. 
Published: May 2016

AbstractRecently reported compounds such as (I) (obtained from aryl methyl sulfides such as (V) + PCl3/AlCl3) react surprisingly under Friedel‐Crafts conditions with acyl chlorides (II) to form initially trans‐(III), which rearrange instantaneously to cis‐(III).
ChemInform Abstract: Synthesis and Dynamic NMR Studies of Pentafluorobenzenethiolate Complexes of Molybdenum and Tungsten. The Crystal and Molecular Structures of (W(SC6F5)3(CO)(η5‐C5H5))·0.5 CH2Cl2 and (N(PPh3)2)(Mo(SC6F5)4(η5‐C5H5)).
Authors: BAKAR W. A. W. A. , DAVIDSON J. L. , LINDSELL W. E. , MCCULLOUGH K. J. 
Published: May 2016

AbstractThe reaction of the W complex (I) with an excess of the Tl thiolate (II) affords the WTl complex (IV) as the major product and the W complex (III) (space group P1, Z=2) as the minor product.
ChemInform Abstract: Preparation and Chemical Reactivities of the Tungsten Allenyl Complex CpW(CO)3CH=C=CH2.
Authors: KENG R.‐S. , LIN Y.‐C. 
Published: May 2016

AbstractAn estimation of the energy of activation for the conversion of the propargyl complex (III) to the η1‐allenyl complex (IV) possibly indicates 1,3‐tungsten sigmatropic rearrangement.
ChemInform Abstract: Synthesis, Electrochemistry, and Magnetic Properties of Binuclear Cobalt Complexes Containing the Co2(μ‐X)(μ‐carboxylato)n+ 2 Core (X: OH, Cl, or Br; n = 1‐3). The Crystal Structures of (CoII 2(μ‐ClH2CCO2)2(μ‐Cl)L2)PF6 and (CoIICoIII(μ‐MeCO2)2(μ‐OH)L2)(ClO4)2·0.5 H2O (L: N,N′,N′′‐Trimethyl‐1,4,7‐triazacyclononane).
Authors: CHAUDHURI P. , QUERBACH J. , WIEGHARDT K. , NUBER B. , WEISS J. 
Published: May 2016

AbstractA series of the novel title complexes such as (IIIa) to (IIIe) are prepared under different conditions.
ChemInform Abstract: η5‐Cyclopentadienylcobalt‐Mediated Inter‐ and Intramolecular (2 + 2 + 2)Cycloadditions of Alkynes to Aldehydes and Ketones: A Novel Synthesis of Fused 2H‐Pyrans.
Authors: HARVEY D. F. , JOHNSON B. M. , UNG C. S. , VOLLHARDT K. P. C. 
Published: May 2016

AbstractThe α,ω‐diynes (I) are submitted to cyclization reaction with acetone (II) and the cobalt complex (III) to form the fused pyran Co complexes (IV).
ChemInform Abstract: Selective Oxidation of a Highly Substituted η4‐Cyclopentadienecobalt Complex: Partitioning Between Uncomplexed Diene and Cobalticinium Cation Products.
Authors: O'CONNOR J. M. , JOHNSON J. A. 
Published: May 2016

AbstractThe cobaltacyclopentadienes (I) react with ethyl diazoacetate (II) to produce the η4‐cyclopentadienecobalt complexes (III).
ChemInform Abstract: Nickel σ‐Sydnonyl Complexes, Stabilized by Tertiary Phosphines.
Authors: MOROZOVA L. N. , ISAEVA L. S. , PETROVSKII P. V. , KRAVTSOV D. N. , SE PHAN MINH SE PHAN MINH , KALININ V. N. 
Published: May 2016

AbstractThe title complexes (III) can also be prepared using 3‐phenyl‐sydnon‐4‐ylmercury chloride instead of (I).
ChemInform Abstract: Synthesis of (Diphenylphosphinothioyl)methyldiphenylphosphoniomethanide Complexes of Gold and Silver. X‐Ray Structure of (Au(C6F5)(SPh2PCH(Au(C6F5))PPh2Me)).
Authors: USON R. , LAGUNA A. , LAGUNA M. , NIEVES FRAILE M. , LAZARO I. , GIMENO M. C. , JONES P. G. , REIHS C. , SHELDRICK G. M. 
Published: May 2016

AbstractBoth the neutral methanide Au(III) complex (III) and the free methanide SPPh2CHPPh2Me react with the Au(I) complexes (IV), (VI), and (IX) or the Ag(I) complex (X) to afford binuclear complexes of the type (V) (space group P21/c, Z=4) and (VII), or (XI).
ChemInform Abstract: Synthetic Studies on Biologically Active Natural Compounds. Part 1. Stereospecific Transformation of Uvidin A into (‐)‐Cinnamodial.
Authors: GARLASCHELLI L. , VIDARI G. 
Published: May 2016

AbstractUvidin A (I) serves as starting material for the preparation of the triol (VI) which is oxidized at C‐11 and C‐12 to give the title compound (VII).
ChemInform Abstract: 6‐Diazopenicillanates. Part 1. Reactions with Furans.
Authors: MATLIN S. A. , CHAN L. , CATHERWOOD B. 
Published: May 2016

AbstractThe mechanism of the title reaction is studied in detail using the diazoesters (I) on one hand and a range of furans on the other; some examples are given in the scheme.
ChemInform Abstract: 57Fe Moessbauer Spectroscopy of Reduced Cathodes in the Li/FeS2 Battery System: Evidence for Superparamagnetism.
Authors: JONES C. H. W. , KOVACS P. E. , SHARMA R. D. , MCMILLAN R. S. 
Published: May 2016

AbstractThe 57Fe Moessbauer spectroscopic results obtained for cathodes removed from fully discharged Li/LiClO4‐propylene carbonate/FeS2 cells indicate that the major phase present is a mixture of superparamagnetic iron particles and bulklike α‐Fe.
ChemInform Abstract: Conversion of (MoS4)2‐ to (Mo2S2(μ‐S)2(S2)2)2‐ by Organic Disulfides: The Mechanism of an Induced Redox Reaction.
Authors: COYLE C. L. , HARMER M. A. , GEORGE G. N. , DAAGE M. , STIEFEL E. I. 
Published: May 2016

AbstractThe reactions outlined in the scheme are studied by EXAFS, UV/VIS, and EPR spectroscopy.
ChemInform Abstract: Catalysis by Heteropoly Compounds. Part 15. Catalytic Oxidation and Isotopic Exchange of Hydrogen Over 12‐Molybdophosphoric Acid.
Authors: MIZUNO N. , WATANABE T. , MISONO M. 
Published: May 2016

AbstractThe H2‐D2 isotopic equilibration and exchange, the reduction of the catalyst by H2, and the catalytic oxidation of H2 are studied using H3PMo12O40·27.4 H2O (I) and Na2HPMo12O40·9.7 H2O (II) as catalysts.
ChemInform Abstract: 1,4‐Pentadien‐3‐ones. Part 31. 1‐(1‐Cyclohexenyl)‐2‐propen‐1‐ones: Synthesis, Properties, and Stereoselective Formation of 3‐Aryl‐4‐(1‐cyclohexenylcarbonyl)perhydro‐1‐naphthalenones by Sequential Michael Reaction.
Authors: RICHTER F. , OTTO H.‐H. 
Published: May 2016

AbstractThe lithium enolate of compound (I) reacts with the ketones (II) and aldehydes, e.g. (IV), to give the title alkenes (III) and (V), respectively.
ChemInform Abstract: Photochemistry of Silylimines: Diels‐Alder Trapping of a Photochemically Generated o‐Quinodimethane Intermediate from o‐(N‐Trimethylsilyliminomethyl)toluene.
Authors: KESSAR S. V. , SINGH T. , MANKOTIA A. K. S. 
Published: May 2016

AbstractIrradiation of the trimethylsilylimine (I) in the presence of dimethyl fumarate (II) or dimethyl maleate (IV) results in cyclization to produce the aminotetralindicarboxylic acid diester (III) or a mixture of (III) and the lactam (V).
ChemInform Abstract: Vinyl Ethers with a Thiirane Cycle. Part 2. 2‐Mercaptoalkylation of Amines by 2‐Vinyloxyethoxymethylthiirane.
Authors: NEDOLYA N. A. , KOMEL'KOVA V. I. 
Published: May 2016

AbstractThe reaction between the thiirane (I) and the amines (II) affords the aminothiols (III) in fair to high yields.
ChemInform Abstract: α,α,ω‐Trihydroperfluoroalkoxysulfonylethenes and Their Reactions with Nucleophilic Reagents.
Authors: POPOV V. I. , SKRYNNIKOVA A. A. , BOGOLYUBSKII A. V. 
Published: May 2016

AbstractThe title compounds (III) are prepared by a novel and versatile procedure in improved yields.
ChemInform Abstract: Palladium‐Catalyzed Michael Addition Reaction of Ketone Enolates Generated by the Decarboxylation of Allyl β‐Keto Carboxylates Under Neutral Conditions.
Authors: NOKAMI J. , WATANABE H. , MANDAI T. , KAWADA M. , TSUJI J. 
Published: May 2016

AbstractThe decarboxylation of the cyclopentanonecarboxylate (I) is performed in the presence of various palladium catalysts in acetonitrile or tetrahydrofuran to yield mixtures of the products (II) ‐ (VII) due to cyclization, degradation, or dehydrogenation processes.
ChemInform Abstract: High Stereoselectivity in the 1,2‐Nucleophilic Additions to a Hindered 2‐Alkylidenecyclohexanone: An Example of Predominant Axial Attack by Sterically Demanding Nucleophiles.
Authors: KOREEDA M. , YOU Z. 
Published: May 2016

AbstractAddition of various nucleophiles such as (II) to the highly hindered 2‐alkylidenecyclohexanone (I) yields a mixture of the 1,2‐ (III), (IV), and 1,4‐adducts (V).
ChemInform Abstract: Is Pseudorotation the Operational Pathway for Bond Shifting Within (8)Annulenes? Probe of Planarization Requirements by 1,3‐Annulation of the Cyclooctatetraene Ring. Kinetic Analysis of Racemization and 2‐D NMR Quantitation of π‐Bond Alternation and Ring Inversion as a Function of Polymethylene Chain Length.
Authors: PAQUETTE L. A. , WANG T.‐Z. , LUO J. , COTTRELL C. E. , CLOUGH A. E. , ANDERSON L. B. 
Published: May 2016

AbstractThe chiral 1,3‐bridged cyclooctatetraene (Xa) is synthesized in nine steps starting from the cyclododecenone (I).
ChemInform Abstract: Nucleophilic Fluorine Displacement Reactions. A Comparison of Reactivities of Polymer‐Supported Fluoride and Acid Fluorides P+F‐, nHF (n = 0‐2).
Authors: COUSSEAU J. , ALBERT P. 
Published: May 2016

AbstractOrganic bromides such as (I) are treated with polymer‐supported fluoride reagents, prepared from commercial anion exchange resins which are converted from the chloride to the hydroxide and then washed with aqueous HF.
ChemInform Abstract: Stereocontrolled Construction of Hydroazulenones by Sequential Anionic Oxy‐Cope Rearrangement‐SN′ Allylic Ether Displacement.
Authors: PAQUETTE L. A. , SHI Y.‐J. 
Published: May 2016

AbstractDivinyl alcohols such as (I) undergo a stereocontrolled oxy‐Cope rearrangement upon heating with KH in THF in the presence of a crown ether to form polycyclic ketones such as (II) ‐ (IV).
ChemInform Abstract: Synthetic Studies on O‐Heterocycles via Cycloadditions. Part 2. Adducts from Styrene Oxides.
Authors: CLAWSON P. , LUNN P. M. , WHITING D. A. 
Published: May 2016

AbstractThe styrene oxides (III) and (IX), bearing electron‐withdrawing functions, readily undergo thermal and photochemical (triplet sensitized) dipolar cycloadditions with simple electron‐deficient compounds such as (II), (IV), (VI), (X).
ChemInform Abstract: Novel Cycloadducts from the Reactions of (α,α‐Bis(3,3,3‐trifluoropropynyl))benzyl Benzoate and (1,1‐Bis(3,3,3‐trifluoropropynyl))ethyl Ethanoate with Furan.
Authors: BARLOW M. G. , TAJAMMAL S. , TIPPING A. E. 
Published: May 2016

AbstractThe alkadiynyl carboxylates (I) react with furan (II) in dichloromethane to give the cycloadducts (III), (IV), (VIb), (VIIb), and (VIIIa).
ChemInform Abstract: Effect of N‐Chloro Structure and 1‐Substituent on σ‐Substitution (Addition‐Elimination) in Pyrroles.
Authors: DE ROSA M. , CABRERA NIETO G. , FERRER GAGO F. 
Published: May 2016

AbstractThe reactions of 1‐substituted pyrroles such as (I) with various N‐chloro heterocycles, amides, or ureas is investigated.
ChemInform Abstract: Mixed Copper Zinc 2‐Aminobenzylic Organometallics as Efficient Reagents for the Synthesis of Heterocycles.
Authors: CHEN H. G. , HOECHSTETTER C. , KNOCHEL P. 
Published: May 2016

AbstractThe mixed organozinc cuprates (VII), prepared from the o‐toluidines (I), are coupled with the allyl bromides (VIII), the halo enone (X), or the acyl chlorides (XII) to give the (cyclo)alkenylanilines (IX) or (XI) or the indole derivatives (XIII).
ChemInform Abstract: Regioselective Addition Reactions of Organometallic Reagents with 3‐Benzylidene Heterocyclic Imines Leading to the Synthesis of Pyrrolizidines.
Authors: HUA D. H. , BENSOUSSAN D. , BRAVO A. A. 
Published: May 2016

AbstractCoupling of 3‐benzylidene‐1‐pyrroline (I) with the Grignard reagent (II) yields the 2‐alkylated derivative (III).
ChemInform Abstract: Vinyl Ethers with a Cyclocarbonate Group. Part 3. Reaction with Carboxylic Acids.
Authors: NEDOLYA N. A. , ZINOV'EVA V. P. , TATAROVA T. F. , TROFIMOV B. A. 
Published: May 2016

AbstractIn the presence of catalytic amounts of perfluorobutyric acid the reactions between equimolar quantities of the title compounds (I) and (II) afford the hitherto unknown polyfunctional adducts (III) in quantitative yields.
ChemInform Abstract: Isolation of Azirino(1,2‐a)indole Derivatives by the Thermolysis of 2‐Alkenyl‐3‐azido‐2‐cyclohexen‐1‐ones.
Authors: NOGUCHI M. , ONIMURA K. , KAJIGAESHI S. 
Published: May 2016

AbstractThermal treatment of the 2‐allyl‐3‐azidocyclohexenones (I) results in formation of the tetrahydroindolones (II) and the hexahydroazirinoindolones (III).
ChemInform Abstract: Pyrimidines. Part 63. Novel Ring Transformations of 5‐Cyanouracils into 2‐Thiocytosines, 2,4‐Diaminopyrimidines, and Pyrimido(4,5‐d)pyrimidines by the Reaction with Thioureas and Guanidines.
Authors: HIROTA K. , SAJIKI H. , KITADE Y. , MAKI Y. 
Published: May 2016

AbstractNovel ring transformations take place when thioureas (II) or guanidines (IV) react with cyanouracils (I), (VI) or (VIII).
ChemInform Abstract: N‐Nitroso and N‐Nitro Derivatives of Diazacycloalkanes and Tetraazabicycloalkanes from α,α′‐Diaminodicarboxylate Esters.
Authors: KUMAR G. , RAMAKRISHNAN V. T. , BOYER J. H. 
Published: May 2016

AbstractCyclization of the diaminoglutarate dihydrochloride (I) with formaldehyde (II) and subsequent N‐nitrosation with sodium nitrite (III) yield the dinitrosohexahydropyrimidinedicarboxylate (IV) as a mixture of cis‐and trans‐isomers.
ChemInform Abstract: Studies on Fused Pyrimidine Derivatives. Part 7. Preparation of Cyclopropa(4,5)pyrido(2,3‐d)‐ and Pyrrolo(2,3‐d)pyrimidine Derivatives Using Intramolecular Carbene Reactions.
Authors: NOGUCHI M. , FUJIMOTO N. , NAGASHIMA M. , KAJIGAESHI S. 
Published: May 2016

AbstractThe sodium salts of the heterocyclic allylamino tosylhydrazones (I) undergo ring closure reaction upon heating to give the octahydrocyclopropapyridopyrimidinediones (II).
ChemInform Abstract: Ring Cleavage Reaction of 1,3‐Oxazine‐2,4(3H)‐dione Derivatives with Amines.
Authors: KINOSHITA T. , TAKEUCHI K. , KONDOH M. , FURUKAWA S. 
Published: May 2016

AbstractRing cleavage of the title compounds (I) by thermal treatment with the amines (II) and (VIII) in ethanol (III) leads to the formation of the products shown in the reaction scheme.
ChemInform Abstract: Triazoles. Part 4. A New Unexpected Ring Closure from 3‐Amino‐1,5‐diaryl‐1H‐1,2,4‐triazoles.
Authors: BOZO E. K. , SZILAGYI G. , LANGO J. , PELCZER I. 
Published: May 2016

AbstractThe aminodiaryltriazoles (I) undergo cyclization reaction with 2,2'‐dithiobis(benzoyl chloride) (II) in the presence of a base to produce the triazolobenzothiadiazepines (III).
ChemInform Abstract: Intramolecular Cyclization of (ω‐Carboxyalkyl)sulfonium Salts. A Novel Synthesis of Macrocyclic Lactones.
Authors: MATSUYAMA H. , NAKAMURA T. , KAMIGATA N. 
Published: May 2016

AbstractReaction of diphenyl sulfide (I) with the ω‐iodocarboxylic acids (II) and silver perchlorate (III) yields the sulfonium salts (IV).
ChemInform Abstract: P‐Chiral Thioxaphosphoranesulfenyl Chlorides (RR1P(S)SCl). Unique Stereochemical Probe for the Nucleophilic Displacements at the Dicoordinate Sulfur.
Authors: LOPUSINSKI A. , LUCZAK L. , MICHALSKI J. 
Published: May 2016

AbstractTreatment of the diastereomeric sulfenamides (I) and (III) with hydrogen chloride, generated in situ from chlorotrimethylsilane and ethanol, yields the thiophosphorylsulfenyl chlorides (II) or (IV).
ChemInform Abstract: Reactions of Chalcogens with Acetylenes. Part 6. Reaction of Chalcogens with Phenylacetylene and Alkyl Halides.
Authors: POTAPOV V. A. , AMOSOVA S. V. , KASHIK A. S. , GUSAROVA N. K. , TROFIMOV B. A. 
Published: May 2016

AbstractThe phenylethynyl alkyl selenides (IV) are prepared by an improved and higher yielding method.
ChemInform Abstract: Cyclic Selenonium exo‐Ylides (3,4‐Dihydro‐1H‐2‐benzoselenin‐2‐io)methanides; Syntheses and Reactions.
Authors: HORI M. , KATAOKA T. , SHIMIZU H. , TSUTSUMI K. , HU Y.‐Z. , NISHIGIRI M. 
Published: May 2016

AbstractReactions of the title compounds (III) are investigated giving the products shown in the scheme.
ChemInform Abstract: Enantiomerically Pure 7‐Oxabicyclo(2.2.1)hept‐5‐en‐2‐yl Derivatives (“Naked Sugars”) as Synthetic Intermediates. Part 11. Total Syntheses of (‐)‐Conduritol B (V) ((‐)‐1L‐Cyclohex‐5‐ene‐1,3/2,4‐tetrol) and of (+)‐Conduritol F (IV) ((+)‐1D‐Cyclohex‐5‐ene‐1,2,4/3‐tetrol). Determination of the Absolute Configuration of (+)‐Leucanthemitol.
Authors: LE DRIAN C. , VIONNET J.‐P. , VOGEL P. 
Published: May 2016

AbstractTo solve literature ambiguities, the title compounds (V) and (VI) are prepared stereospecifically starting from the "naked sugar" (+)‐(I), and (+)‐conduritol F (V) is found to be identical with natural (+)‐leucanthemitol.