bluuebunny/crossref_metadata_2025_split huggingface dataset:
ChemInform Abstract: Reissert Compound Formation by Use of Solid‐Liquid Phase‐Transfer Catalysis.
Authors: UFF B. C. , BURFORD D. L. W. , HO Y.‐P. 
Published: May 2016

AbstractThe reported method is effective with both five‐ and six‐membered ring N‐heterocycles except benzothiazole giving only low yields of Reissert compounds.
ChemInform Abstract: Practical Synthesis of dl‐4‐Hydroxymethyl‐2‐buten‐4‐olide from Furfural.
Authors: WANG Z.‐Q. , ZHOU W.‐S. , CHEN Y. , WY Y.‐H. , ZHU Z.‐Y. 
Published: May 2016

AbstractThe butenolide (IX) mentioned in the title is prepared from furfural (I) via silylation of the diethyl acetal (III) followed by oxidation to form the furanone (VI).
ChemInform Abstract: A Highly Diastereoselective Route to Disubstituted Tetrahydrofuran Derivatives by Substitution of γ‐Lactols with Silylated Nucleophiles.
Authors: SCHMITT A. , REISSIG H.‐U. 
Published: May 2016

AbstractTreatment of 2‐hydroxy‐3‐methyltetrahydrofuran (I) with the allylsilanes (II) in the presence of boron trifluoride etherate results in substitution to yield the trans‐allylmethyltetrahydrofurans (III) as the main products.
ChemInform Abstract: Synthesis of γ‐Lactones by Iron(III) Perchlorate Oxidation of Malonic Esters in the Presence of Olefins.
Authors: CITTERIO A. , SEBASTIANO R. , NICOLINI M. , SANTI R. 
Published: May 2016

AbstractTreatment of the malonates (I) with the alkenes (II) in the presence of iron(III) perchlorate nonahydrate results in oxidative cyclization to give the butyrolactones (III).
ChemInform Abstract: Synthesis of 4,7‐Disubstituted Spirobenzofuran‐2(3H)‐cyclohexanes.
Authors: BRADBURY B. J. , SINDELAR R. D. 
Published: May 2016

AbstractA general strategy is shown for the preparation of the title compounds (VII) and (VIII) and some of their derivatives using successive, regioselective heteroatom‐facilitated aromatic lithiation reactions and subsequent reaction with electrophiles.
ChemInform Abstract: Synthesis and Cardiotonic Activity of Novel Biimidazoles.
Authors: MATTHEWS D. P. , MCCARTHY J. R. , WHITTEN J. P. , KASTNER P. R. , BARNEY C. L. , MARSHALL F. N. , ERTEL M. A. , BURKHARD T. , SHEA P. J. , KARIYA T. 
Published: May 2016

AbstractThe synthesis of biimidazoles such as (IV) is achieved by reaction of imidazole‐2‐carboxaldehydes, e.g. (I), with 1,1‐dibromo‐3,3,3‐trifluoroacetone (II) and ammonia (III).
ChemInform Abstract: Heterocyclic (4+ + 2) Cycloadditions: The Reactivity of Pyridinium Salts with Electron‐Rich Olefins.
Authors: FALCK J. R. , WITTENBERGER S. J. , RAJAPAKSA D. , MIOSKOWSKI C. , BOUBIA B. 
Published: May 2016

AbstractThe reaction of the ester (VI) yields the by‐products (IX), (X) and (XI).
ChemInform Abstract: Antihypertensive Dihydropyridines with 1,4,4‐Trisubstitution.
Authors: KUKLA M. J. , BRESLIN H. J. , GILL A. 
Published: May 2016

AbstractThe synthesis of trisubstituted dihydropyridines, e.g. (III), is achieved by reaction of a dialdehyde such as (I) with an amino acid ester hydrochloride, e.g. (II).
ChemInform Abstract: A General Method for the Preparation of 2‐Substituted‐4‐oxo‐3‐quinolinecarboxylic Acids.
Authors: KIELY J. S. , HUANG S. , LESHESKI L. E. 
Published: May 2016

AbstractA general method for preparing title compounds such as the corresponding acids from the esters (V) as well as the piperazinyl derivatives (VII) as new analogues in the quinolone class of antiinfectives is developed.
ChemInform Abstract: A Convenient Method for the Synthesis of N‐Alkyl‐Substituted 4‐Hydroxy‐1,2,3,4‐tetrahydroisoquinolines.
Authors: SIMIG G. , SCHLOSSER M. 
Published: May 2016

AbstractThe aromatic aldehyde (I) is transformed into the hydroxytetrahydroquinolines (VI) in a one‐pot procedure by reductive amination, alkylation with bromoacetaldehyde diethyl acetal (IV), and acid‐catalyzed cyclization.
ChemInform Abstract: Pyridazines. Part 46. Preparation of Azolopyridazinecarboxylic Acids.
Authors: HEINISCH G. , LOETSCH G. + , OFFENBERGER S. , STANOVNIK B. , TISLER M. 
Published: May 2016

AbstractThe title acids resp. their esters such as (III), (VI) or (VIII) are prepared either by oxidation of the corresponding methyl‐substituted azolopyridazines such as (I) or by a regioselective radical substitution process.
ChemInform Abstract: Synthesis and Pharmacological Study of Pyridazino(4,5‐b)carbazoles.
Authors: LANDELLE H. , LADUREE D. , CUGNON DE SEVRICOURT M. , ROBBA M. 
Published: May 2016

AbstractThe carbazoledicarboxylates (I) react with hydrazine hydrate (II) to give the pyridazinocarbazolediones (III).
ChemInform Abstract: A New Route to the Synthesis of 5‐Fluorouracil.
Authors: BAASNER B. , KLAUKE E. 
Published: May 2016

AbstractFluorine/chlorine exchange of tetrafluoropyrimidine (I) with gaseous hydrochloric acid proceeds predominantly in 4 and 6 position to form (III) which is separated from lower and higher chlorinated products, (II) and (IV), by distillation.
ChemInform Abstract: Cleavage of Ylidic Bonds in Phosphorus Ylides: Photolysis of Thiophosphoranyl‐Substituted (Triphenylphosphoranylidene)methanes.
Authors: GRUETZMACHER H. + 
Published: May 2016

AbstractThe formation of the heterocycles (II) is explained by insertion of the photolytically obtained carbenes into the methine CH bond of one of the isopropyl groups.
ChemInform Abstract: The Preparation of New Spirocyclic N,N′‐Dimethylsulfamide‐Substituted Phosphorus Compounds, and of Some N,N′‐Dimethylsulfamide‐Bridged Diphosphorus Compounds.
Authors: JONES P. G. , MEYER A. , SCHMUTZLER R. 
Published: May 2016

AbstractThe reactions of the chloro derivative (I) with trimethylsilyl compounds such as (II) and sodium azide lead to the series of spirocyclic phosphoranes (III).
ChemInform Abstract: Lithium Compounds of a Chlorosilanol and of Fluoro‐Functional Siloxanols; Synthesis and Crystal Structures.
Authors: SCHMIDT‐BAESE D. + , KLINGEBIEL U. 
Published: May 2016

AbstractLithiation of the known silanols (I) and (IV) in hexane leads to the trimer (III) (space group P21/c, Z=4) and to the stable monomeric Li derivative (V), respectively.
ChemInform Abstract: Synthesis and Reactivity of Alkyne Substituted Titanocene Complexes.
Authors: LANG H. , SEYFERTH D. 
Published: May 2016

AbstractIn general, the preparation of complexes such as (VII) (18 examples) is also possible for some cases using Grignard reagents BrMg‐C≡C‐R2 (only in the reaction with (Va)) or Na acetylides.
ChemInform Abstract: Homo‐ and Heterobimetallic μ(η1‐O:η1‐O′) Formate Complexes (M‐OCHO‐M′)+PF‐ 6 (M, M′: (η5‐C5H5)(CO)(NO)Re, (η5‐C5H5)(CO)3W, and (η5‐C5H5)(CO)2Fe): Their Synthesis, Solution Lability, and Reactivity Toward Hydride Donors.
Authors: TSO C. C. , CUTLER A. R. 
Published: May 2016

AbstractThe complexes (I), available through protonolysis (HBF4‐HCOOH) of their methyl complexes, react to give homo‐ or heterobimetallic formate‐bridged complexes.
ChemInform Abstract: Reactions of (Cp(CO)2Fe=CHAr)+ (Ar: p‐C6H4OMe) with O=N‐Ar′ (Ar′: C6H5, p‐C6H4NMe2) and PhN=NPh.
Authors: PENG W.‐J. , GAMBLE A. S. , TEMPLETON J. L. , BROOKHART M. 
Published: May 2016

AbstractThe organometallic products formed in the title reactions reflect net insertion of the nitroso or azo unit into the iron‐carbene bond.
ChemInform Abstract: Synthesis, Properties and Crystal Structures of Dicopper(I) and Disilver(I) Complexes with 1,8‐Naphthyridine (napy): (Cu2(napy)2)(ClO4)2 and (Ag2(napy)2)(ClO4)2.
Authors: MUNAKATA M. , MAEKAWA M. , KITAGAWA S. , ADACHI M. , MASUDA H. 
Published: May 2016

AbstractThe title complexes (Ia) (space group P1, Z=1) and (Ib) ( P21/n, Z=2) are prepared by reaction of Cu(I) and Ag(I) perchlorate with the title ligand with 41 and 74% yield, resp., and characterized by X‐ray structure analysis.
ChemInform Abstract: Solution Synthesis of a Biologically Active Fragment (33‐41) of Thymosin β9.
Authors: KALBACHER H. , JAHAN M. , MIHELIC M. , ZAMAN F. , VOELTER W. 
Published: May 2016

AbstractThe title fragment (I) is prepared using the strategy of maximum side‐chain protection with acid‐labile tert.‐butyl groups and temporary Nα‐benzyloxycarbonyl protection during the elongation step.
ChemInform Abstract: Glycosidation. Part 12. Stereoselective Synthesis of 1,1‐Dialkyl‐1‐methoxymethyl Glucosides (Acetal Glucosides).
Authors: TIETZE L. F. , FISCHER R. , LOEGERS M. + , BELLER M. 
Published: May 2016

AbstractThe β‐D‐glucopyranose (I) reacts with the ketones (II) in the presence of the silyl ether (III) and trimethylsilyl trifluoromethanesulfonate as the catalyst to give stereoselectively the corresponding acetal β‐glycosides (IV) which are deacetylated to produce the corresponding tetrahydroxy derivatives (V).
ChemInform Abstract: Syntheses of C‐Nucleosides and Analogues of C‐Nucleosides. Part 6. Syntheses of Higher Sugars by a New Chain‐Elongation Reaction.
Authors: PESEKE K. , AMBROSI H.‐D. , MICHALIK M. 
Published: May 2016

AbstractThe nitroglucopyranosides (I) and (XI) react with carbon disulfide (II) and methyl iodide (III) to give the dithioacetals (IV) and (XII).
ChemInform Abstract: Thiazolo(4,5‐d)pyrimidine Nucleosides. The Synthesis of Certain 3‐β‐D‐Ribofuranosylthiazolo(4,5‐d)pyrimidines as Potential Immunotherapeutic Agents.
Authors: NAGAHARA K. , ANDERSON J. D. , KINI G. D. , DALLEY N. K. , LARSON S. B. , SMEE D. F. , JIN A. , SHARMA B. S. , JOLLEY W. B. , ROBINS R. K. , COTTAM H. B. 
Published: May 2016

AbstractIn order to evaluate the effect of the insertion of a sulfur atom instead of nitrogen at position 7 of the purine ring, thiazolopyrimidine nucleosides such as (IV) are prepared as shown in the reaction scheme.
ChemInform Abstract: Total Syntheses of Riccardins A, B, and C, Cytotoxic Macrocyclic Bis(bibenzyls) from Liverworts.
Authors: GOTTSEGEN A. , NOGRADI M. , VERMES B. , KAJTAR‐PEREDY M. , BIHATSI‐KARSAI E. 
Published: May 2016

AbstractRiccardin B (VII) is prepared as its dimethyl ether and characterized as its diacetate.
ChemInform Abstract: Synthesis and Structure‐Activity Relationships of New 7‐(3‐(Fluoromethyl)piperazinyl)‐ and ‐(Fluorohomopiperazinyl)quinolone Antibacterials.
Authors: ZIEGLER C. B. JUN. , BITHA P. , KUCK N. A. , FENTON T. J. , PETERSEN P. J. , LIN Y. 
Published: May 2016

AbstractReaction of the 6,7‐difluorodihydroquinolinecarboxylic acids (I) with the cyclic diamines (II) yields the novel piperazinyl‐ or homopiperazinylquinolone antibacterials (III).
ChemInform Abstract: A Synthesis of the C24‐C34 Segment of FK 506.
Authors: KOCIENSKI P. , STOCKS M. , DONALD D. , PERRY M. 
Published: May 2016

AbstractThe meso‐diester (I) is converted into the vinylcyclohexane (XIV) which is the C24‐C34 segment of the macrocyclic immunosupressant tsukubaenolide FK 506. Key intermediates in the reaction sequence are the homochiral acid (VI) and the hydroxamate (XII).
ChemInform Abstract: Layer Anions in the Crystal Structures of the Isotypic Compounds Sr2(Ga2S5), Ba2(In2S5), and Ba2(In2Se5).
Authors: EISENMANN B. , HOFMANN A. 
Published: May 2016

AbstractThe isotypic title compounds, prepared by annealing stoichiometric mixtures of the elements at 1150‐1250 °C, crystallize in the orthorhombic space group Pbca with Z = 8. Their structures consists of GaS4‐, InS4‐, or InSe4‐tetrahedra which are connected via three corners of each tetrahedra to form layers containing rings built up by four and eight tetrahedra.
ChemInform Abstract: Crystal Structure and Magnetic Order of UCo5
Authors: DOMMANN A. , BRAENDLE H. + , HULLIGER F. , FISCHER P. 
Published: May 2016

Abstractare determined qualitatively by neutron diffraction measurements at 293, 133 and 15 K. The rhombohedral structure of UCo5 is related to the hexagonal CaCu5‐type (detailed discussion).
ChemInform Abstract: Hydrogenation, Disproportionation and Desorption (HDD): An Effective Processing Route for Nd‐Fe‐B‐Type Magnets.
Authors: MCGUINESS P. J. , ZHANG X. J. , YIN X. J. , HARRIS I. R. 
Published: May 2016

AbstractUsing the coarse‐grained, non‐homogeneous cast alloys Nd16Fe76B8 and Nd2.1Fe14B, it is demonstrated that the HDD process yields fine‐grained homogeneous materials which exhibit appreciable coercivities and remanences characteristic of isotropic materials.
ChemInform Abstract: Cationic Lead(II) Hydroxide Complexes in Molten Alkali‐Metal Nitrate.
Authors: BENGTSSON L. , HOLMBERG B. 
Published: May 2016

AbstractThe complexation between Pb(II) and OH‐ is studied in molten KNO3/NaNO3 at 280 °C by various electrochemical and spectroscopic (Raman, 1H NMR) methods.
ChemInform Abstract: Anodic Polarization Behavior and Corrosion Resistivity of a Hypophosphite‐Reduced Electroless Copper Deposit Film in a Sodium Chloride Solution.
Authors: HUNG A. , CHEN K.‐M. 
Published: May 2016

AbstractAs compared to conventional formaldehyde‐reduced electroless and electrodeposited copper films, an electroless copper deposit, obtained from a new bath containing sodium citrate, H3BO3, K4P2O7, CuSO4, NiSO4, and NaOH (pH 9.2, 65 °C), shows a better corrosion resistance.
ChemInform Abstract: Search for “Cold‐Fusion” in Some M‐D Systems at High Pressures of Gaseous Deuterium.
Authors: BARANOWSKI B. , FILIPEK S. M. , SZUSTAKOWSKI M. , FARNY J. , WORYNA W. 
Published: May 2016

AbstractNo evidence for neutron emission or heat evolution is found in long‐term experiments performed with highly concentrated Pd and Ni deuterides, which are prepared by treatment of metallic Pd and Ni with gaseous D2 at 298 K and pressures of 3.1 GPa and 1.0 GPa, respectively.
ChemInform Abstract: Oxidation Kinetics of Chromium(III) Chloride.
Authors: SOLE K. C. , MOOIMAN M. B. , BROWN M. E. 
Published: May 2016

AbstractThe oxidation of anhydrous CrCl3 pellets is studied in the temp. range 350‐630 °C and at mole fractions of O2 between 0.1 and 1.0 using SEM as well as isothermal and temp.‐programmed TG.
ChemInform Abstract: Systematic Design of Chemical Oscillators. Part 62. The Minimal Permanganate Oscillator and Some Derivatives: Oscillatory Oxidation of S2O2‐ 3, SO2‐ 3, and S2‐ by Permanganate in a CSTR.
Authors: ORBAN M. , EPSTEIN I. R. 
Published: May 2016

AbstractThe oscillating system KMnO4‐MnSO4‐KH2PO4‐NaOH, which serves as a core from which other oscillating permanganate reactions can be generated, is termed the "minimal permanganate oscillator", because it contains components that are found in all members of the family as reactants or are generated during the reaction.
ChemInform Abstract: Fluoridation of OH‐Apatite by Ammonium Fluoride.
Authors: MAITI G. C. 
Published: May 2016

AbstractStudies of the nature of the anionic diffusion in the Ca5(OH)(PO4)3 lattice between 100 and 800 °C using NH4F as the fluoridating agent, show that the reaction is essentially a solid‐solid reaction, which can be subdivided into two steps.
ChemInform Abstract: Poisoning Effects of Li+ and F‐ Ions in Alumina for N2O Decomposition.
Authors: POMONIS P. , KORDULIS C. , LYCOURGHIOTIS A. 
Published: May 2016

AbstractThe deactivation of γ‐Al2O3 (with respect to the N2O decomposition) observed for Li+‐doped samples is explained by a decrease of the specific surface area.
ChemInform Abstract: Moessbauer Spectroscopy Study of the Kinetics of Photoreduction of Fe3+ on CdS Semiconductor Powders.
Authors: GESSERT T. A. , WILLIAMSON D. L. , NOZIK A. J. 
Published: May 2016

AbstractThe rate constants observed for the photoreduction of Fe3+ by aqueous dispersions of CdS particles show systematic variation with (CdS)/(Fe3+), which can be attributed to the optical density change associated with the 1‐μm CdS particle size and to a high efficiency for photocorrosion of the CdS by the photogenerated holes.
ChemInform Abstract: Gaseous “H3PS2” ‐ Generation and Characterization.
Authors: KECK H. , KUCHEN W. , RENNEBERG H. , TERLOUW J. K. , VISSER H. C. 
Published: May 2016

AbstractCollisional activation (CA) mass spectra and thermochemical data show that the alkene elimination from the dialkyldithiophosphinic acids (I) leads to a mixture of the tautomeric radical cations (II) and (III) containing tri‐ or dicoordinated phosphorus, whereas tetracoordinated phosphorus corresponding to the ionized dithiophosphinic acid H2P(S)SH is not observed.
ChemInform Abstract: Thermal Behavior of Anhydrous Phosphates. Part 3. Chemical Vapor Transport of Phosphates of Ti3+ and Ti4+.
Authors: GLAUM R. , GRUEHN R. 
Published: May 2016

AbstractIn the course of equilibrium experiments in the system Ti/P/O at 900 °C in evacuated silica ampoules, the ternary phases TiPO4, TiP2O7, and "Ti2P2O9" are detected in addition to a not characterized compound occurring in the phase triangle TiO2/TiPO4/TiP2O7.
ChemInform Abstract: A Synthetic Variant of the Hulsit‐Type: Ni5.33Sb0.67B2O10.
Authors: BLUHM K. , MUELLER‐BUSCHBAUM HK. + , WALZ L. 
Published: May 2016

AbstractSingle crystals of the new title compound are prepared by reaction of NiO and Sb2O5 (10:1) in a B2O3 flux (excess B2O3, Pt‐crucible, 1300 °C).
ChemInform Abstract: Design of Integrated Fluorescent Estrogens: The Second Donor Effect on Absorption, Fluorescence, and Ground‐State MO Properties of trans‐4,4′‐Methoxynitrostilbene Systems.
Authors: ANSTEAD G. M. , KATZENELLENBOGEN J. A. 
Published: May 2016

AbstractBecause of the great interest in the development of an estrogen receptor (ER)‐targeted fluorophore to determine the distribution of the ER in individual mammary tumor cells, and in an attempt to optimize the fluorescent properties of such probes, the effect is studied that a second alkoxy donor has on the fluorescent properties of two systems (Ia)/(Ib) and (II)/(III).
ChemInform Abstract: Chemistry of Organosilicon Compounds. Part 266. Dual Fluorescence of Aryldisilanes and Related Compounds. Evidence for the Formation of 1(σπ*) Orthogonal Intramolecular Charge‐Transfer States.
Authors: SAKURAI H. , SUGIYAMA H. , KIRA M. 
Published: May 2016

AbstractFluorescence spectra of 14 arylpentamethyldisilanes are reported.
ChemInform Abstract: Microporous Aluminum Oxide Films at Electrodes. Part 7. Mediation of the Catalytic Activity of Glucose Oxidase via Lateral Diffusion of a Ferrocene Amphiphile in a Bilayer Assembly.
Authors: BOURDILLON C. , MAJDA M. 
Published: May 2016

AbstractGlucose oxidase is immobilized in the head group region of an organized bilayer self‐assembled in a porous template of aluminum oxide film at a gold electrode.
ChemInform Abstract: A Versatile Rhodium Catalyst for Acetalization Reactions Under Mild Conditions.
Authors: OTT J. , RAMOS TOMBO G. M. , SCHMID B. , VENANZI L. M. , WANG G. , WARD T. R. 
Published: May 2016

AbstractThe rhodium(III) triphos complexes (I) are employed as catalyst in the acetalization of various carbonyl compounds.
ChemInform Abstract: Competition Between Methoxide Attack at Ring Carbon and at the Cyano Group of Cyanonitroanisoles. The Effects of Cations.
Authors: CASTILHO P. C. M. F. , CRAMPTON M. R. , YARWOOD J. 
Published: May 2016

AbstractKinetic and equilibrium data are reported for the reaction of the title compound (III) with sodium, potassium and lithium methoxides with inclusion of the effects of added barium and calcium ions.
ChemInform Abstract: The Cycloaddition of Heterocumulenes to Oxetanes in the Presence of Catalytic Amounts of Tetraphenylstibonium Iodide.
Authors: FUJIWARA M. , BABA A. , MATSUDA H. 
Published: May 2016

AbstractSb‐catalyzed reactions of the oxetanes (I) with CO2 (II), isocyanates such as (V) or diimides (VI) give rise to heterocycles such as (III), (IV), or (VIII).
ChemInform Abstract: Asymmetric Induction in the Wittig‐Still Rearrangement of Ethers Containing an Allylic Stereocenter ‐ Diastereocontrol by Allylic Nitrogen.
Authors: PRIEPKE H. , BRUECKNER R. + , HARMS K. 
Published: May 2016

AbstractStannylated Z‐allyl ethers such as (I) or (IV) possessing an allylic stereogenic center attached to Bn2N or BocN‐R groups undergo Wittig‐Still rearrangement to give the syn‐amino alcohols (II) (space group P1; Z=2) or (V) (X‐ray analysis of the N‐phenylurethane: space group P212121; Z=4) with high asym.
ChemInform Abstract: Dimroth Rearrangement of 5‐Hydrazino‐1,2,3‐thiadiazoles.
Authors: L'ABBE G. , VANDERSTEDE E. 
Published: May 2016

AbstractTreatment of the 1,2,3‐thiadiazole (III) with a large excess of hydrazine (II) yields the 1‐amino‐5‐mercapto‐1,2,3‐triazole (IV), probably via the thiadiazole (I).
ChemInform Abstract: Photochemistry of Heterocycles. Part 25. Derivatives of Tetrahydro‐2H‐pyridine from Photorearranged Cycloadducts of Nitrile Oxides.
Authors: FISERA L. , ONDRUS V. , TIMPE H.‐J. 
Published: May 2016

AbstractThe cycloadducts (III) undergo photorearrangement to the title compounds (IV).
ChemInform Abstract: O‐N, S‐N, and N‐N Exchange Reactions at Olefinic Carbon Atoms: Facile Synthetic Method for β‐Trifluoroacetylvinylamines.
Authors: HOJO M. , MASUDA R. , OKADA E. , SAKAGUCHI S. , NARUMIYA H. , MORIMOTO K. 
Published: May 2016

AbstractTreatment of the β‐(alkylthio‐ or alkoxy)vinyl trifluoromethyl ketones (II) and (V) with the amines (I) produces the aminovinyl ketones (III).
ChemInform Abstract: Stereoselective Synthesis of gem‐Disubstituted Cyclopropanes from gem‐Dibromocyclopropanes.
Authors: HARADA T. , HATTORI K. , KATSUHIRA T. , OKU A. 
Published: May 2016

AbstractThe 1,1‐dibromocyclopropanes (I) are first lithiated, then transmetalated with zinc dichloride, and subsequently treated with the organolithiums (II) to generate cyclopropylzinc intermediates which are quenched with electrophiles, e.g. acetyl chloride (III), to produce mainly E‐configurated trisubstituted cyclopropanes such as (IV).
ChemInform Abstract: Allylsilanes Derived from α‐ and β‐Ionone. Synthesis and Unusual Reactivity with Electrophiles.
Authors: AZZARI E. , FAGGI C. , GELSOMINI N. , TADDEI M. 
Published: May 2016

AbstractThe ionones (I) and (VI) are converted to the allylsilanes (V) or (VII) via acetates, e.g. (III).
ChemInform Abstract: Precursors to the Cyclo(n)carbons: From 3,4‐Dialkynyl‐3‐cyclobutene‐1,2‐diones and 3,4‐Dialkynyl‐3‐cyclobutene‐1,2‐diols to Cyclobutenodehydroannulenes and Higher Oxides of Carbon.
Authors: RUBIN Y. , KNOBLER C. B. , DIEDERICH F. 
Published: May 2016

AbstractCyclocarbons have been detected in the vapor phase of heated graphite and for the determination of chemical and physical properties syntheses of these molecules are required.
ChemInform Abstract: A New Mild Method for the Synthesis of Esters and Benzenethiol Esters by Activation of Pyridine‐2‐thiol or Benzothiazole‐2‐thiol Esters by Methyl Iodide.
Authors: RAVI D. , MEREYALA H. B. 
Published: May 2016

AbstractReaction of the carboxylic acids (I) with the dipyridyl disulfide (II) gives the thioloesters (III) which are activated by N‐quaternization and then treated with the alcohols or thiophenol (VI), yielding the (thiolo)esters (VII).
ChemInform Abstract: An Expedient Synthesis of α‐Fluoro (β‐Keto) Esters.
Authors: THENAPPAN A. , BURTON D. J. 
Published: May 2016

AbstractThe ethoxycarbonylfluoromethylenephosphorane (III) reacts with the acyl chlorides (IVa) ‐ (IVd) to produce the α‐halo β‐oxo esters (Va) ‐ (Vd) after basic work‐up.
ChemInform Abstract: Homologation of Aldehydes Using (Phenylthiomethylene)triphenylarsorane.
Authors: BOUBIA B. , MIOSKOWSKI C. , MANNA S. , FALCK J. R. 
Published: May 2016

AbstractThe arsonium ylides (I) react with the aldehydes (II) at ‐10°C to give the epoxides (III) which rearrange on exposure to silica gel, forming the α‐phenylthio aldehydes (IV).
ChemInform Abstract: Synthesis and Reactivity of 6‐(Fluoromethyl)indole and 6‐(Difluoromethyl)indole.
Authors: WOOLRIDGE E. M. , ROKITA S. E. 
Published: May 2016

AbstractThe N‐protected 6‐methylindole (I) is brominated and then subjected to halogen exchange with silver fluoride to yield the 6‐fluoromethyl analogue (III).
ChemInform Abstract: Intramolecular Trapping of a Phosphazide by an Imine: Formation of 2,3‐Diamino‐2H‐indazole Derivatives from o‐Azidobenzaldimines and Tertiary Phosphines.
Authors: MOLINA P. , ARQUES A. , VINADER M. V. 
Published: May 2016

AbstractThe o‐azidobenzaldimines (I) react with the phosphines (II) to give the aminoindazolyliminophosphoranes (III).