bluuebunny/crossref_metadata_2025_split huggingface dataset:
ChemInform Abstract: Direct Formations of o‐Tropoquinone Bisacetals from 2,3‐ and 2,7‐Dimethoxytropones and p‐Tropoquinone Bisacetals from 2‐Bromo‐7‐methoxytropone by the Anodic Oxidation.
Authors: MORI A. , KUBOTA T. , KASAI S. , TAKESHITA H. 
Published: May 2016

AbstractThe dimethoxytropones (I) or (VIII) are electrochemically oxidized in the presence of methanol (II) to give the tetramethoxy compounds (III) and (IX) and the dimer (X).
ChemInform Abstract: Studies on the Synthesis of Eremophilane Sesquiterpenes. A Novel Entry into the Aristolane Ring System.
Authors: RIGBY J. H. , DENIS J.‐P. 
Published: May 2016

AbstractThe tricyclic enone (I) reacts with vinylmagnesium bromide (II) to yield a mixture of the anti‐ and syn‐alcohols (III) which are treated with potassium hydride, producing the rearranged enone (IV).
ChemInform Abstract: A Facile Procedure for the Synthesis of N‐(Tosyl)‐2‐iminoacetic Acid Esters, Important Enophiles for the Direct Synthesis of Exotic α‐Amino Acids.
Authors: BAILLARGE M. , LE GOFFIC F. 
Published: May 2016

AbstractThe N‐(tosyl)iminoacetates (III) are prepared by aluminum trichloride catalyzed reaction of tosyl isocyanate (I) with the glyoxalates (II).
ChemInform Abstract: Oxidative Rearrangement of Substituted Aryl Alkyl Ketones with Thallium(III) Nitrate: Synthesis of 2,7‐Dihydroxycadalene.
Authors: STIPANOVIC R. D. , STEIDL J. 
Published: May 2016

AbstractThe title compound (VIIb) is prepared from p‐methylpropiophenone (Ia) as shown in the reaction scheme.
ChemInform Abstract: Chemistry of Isoindoles and Isoindolenines. Part 27. 2‐Alkyl‐2H‐dibenz(e,g)isoindoles; Synthesis, Properties, Reactions.
Authors: KREHER R. P. , HILDEBRAND T. 
Published: May 2016

AbstractThe tetracyclic hetarenes (V) are easily accessible from (I) via (III) and the corresponding N‐oxides.
ChemInform Abstract: Improved Synthesis of Vinylimidazoles.
Authors: GRIFFITH R. K. , DIPIETRO R. A. 
Published: May 2016

Abstract1‐Tritylimidazole‐4‐carboxaldehyde (I) reacts with the phosphonium bromides (II) or the phosphonates (IV) to produce the 4‐vinylimidazoles (III).
ChemInform Abstract: 3‐Substituted 1,2,3‐Triazole 1‐Oxides. Preparation and Reactions.
Authors: BEGTRUP M. , JONSSON G. 
Published: May 2016

AbstractMCPBA oxidation of the triazoles (I) yields the N‐oxides (II), which undergo various transformations leading to substituted triazole N‐oxides such as (IV), (V), (VII) or (IX).
ChemInform Abstract: Metalation of Carbamates Derived from 5‐, 6‐, 7‐ and 8‐Hydroxyquinoline.
Authors: GODARD A. , ROBIN Y. , QUEGUINER G. 
Published: May 2016

AbstractBase‐induced rearrangement of the O‐quinolyl carbamates (I) and (III) leads to the formation of the dimethylcarbamoylhydroxyquinolines (II) and (VI).
ChemInform Abstract: Synthesis of 3‐Hydrazino‐1,2,4‐triazino(4,3‐a)benzimidazole: A Synthon for Building Novel Nitrogen Heterocycles.
Authors: VENKATARATNAM R. V. , SAYANNA E. , SUJATHA K. 
Published: May 2016

Abstract2‐Chlorobenzimidazole (I) is coupled with chloroacetonitrile (II) to produce the 1‐benzimidazolylacetonitrile (III).
ChemInform Abstract: Synthesis of Crown Ethers from (+)‐Tartaric Acid: Improved Procedures.
Authors: ANANTANARAYAN A. , CARMICHEAL V. A. , DUTTON P. J. , FYLES T. M. , PITRE M. J. 
Published: May 2016

AbstractThe tetramethyl tartaramide (II) is coupled with the ω,ω'‐ditosyloxy or dihalo (poly)ethers (I), producing the crown ethers (III) or (IV).
ChemInform Abstract: Diels‐Alder Reactions of 2,3‐Bis(tert‐butyldimethylsilyloxy)‐1,3‐butadiene with Heterodienophiles.
Authors: RIED W. , REIHER U. 
Published: May 2016

AbstractSilylation of diacetyl (I) by the silyltriflate (II) yields the title compound (III).
ChemInform Abstract: Reactions of P‐Halogen Ylides with Carbonyl Compounds. Synthesis of Allylphosphonates.
Authors: KOLODYAZHNYI O. I. , KOVALENKO A. B. 
Published: May 2016

AbstractReaction of the ylide (I) with the carbonyl compounds (II) yields the phosphetanes (III) which are transformed into the allylphosphonic amides (IV) on heating.
ChemInform Abstract: Silaheterocycles. Part 2. Preparation and Cycloaddition Reactions of the Neopentylsilaethenes Cyclic CH2CH2(R)CHSi=CHCH2tBu.
Authors: AUNER N. 
Published: May 2016

AbstractThe dichlorosilacyclobutanes (I) are converted into the vinylchlorosilacyclobutanes (VII).
ChemInform Abstract: Metal π Complexes of Benzene Derivatives. Part 30. η6‐, μ2‐(η6:η6)‐, and μ3‐(η6:η6:η6)‐(23)Paracyclophane Complexes of Chromium. Preparation, Nuclear Magnetic Resonance, and Redox Behavior.
Authors: ELSCHENBROICH C. , SCHNEIDER J. , WUENSCH M. + , PIERRE J.‐L. , BARET P. , CHAUTEMPS P. 
Published: May 2016

AbstractCocondensation of Cr atoms with the paracyclophane (I) affords the bis(exo) complex (III), endo coordination of the type η12‐(23)paracyclophane‐Cr not being detected.
ChemInform Abstract: Synthesis and Characterization of the Binuclear Mixed Valence Complex Di‐μ‐oxobis(tris(2‐methylpyridyl)amine)dimanganese(III,IV) Dithionate Heptahydrate, ((tpa)MnO)2(S2O6)3/2·7 H2O.
Authors: TOWLE D. K. , BOTSFORD C. A. , HODGSON D. J. 
Published: May 2016

AbstractThe title complex (III) crystallizes in the space group P21/n with Z=4 and is a fully localized Mn(III)/Mn(IV) system.
ChemInform Abstract: Regio‐ and Stereoselectivity of Halogen Substitution in Fe2(CO)6(μ‐PRCl)(μ‐Hal).
Authors: EVERTZ K. , HUTTNER G. 
Published: May 2016

AbstractThe halogen substitution reactions of the dinuclear complexes (I) with the thiols (II) in the presence of the base DBU are studied.
ChemInform Abstract: Proton Transfer from Metal Hydrides to Metal Alkynyl Complexes. Remarkable Carbon Basicity of (C5H5)(PMe3)2Ru‐CC‐CMe3 (I).
Authors: BULLOCK R. M. 
Published: May 2016

AbstractThe complex (III) precipitates from combined toluene solutions of (I) and hydrides (II); thermolysis of the PF6‐ salt of its cation in MeCN (IV) at 95 °C results in MeC≡CH with clean formation of the MeCN complex (V) (PF6‐ salt).
ChemInform Abstract: Halochromic Molecules. Part 7. Synthesis and Acidobasic Properties of Substituted Heteroarenoquinazolines.
Authors: GUNZENHAUSER S. , BALLI H. 
Published: May 2016

AbstractOn treatment with acid the title compounds (IIIb)‐(IIId) form ring‐opened, blue triphenylcarbenium salts of the Rhoduline‐R type, while (IIIa) remains colorless.
ChemInform Abstract: A Straightforward Synthesis of L‐Lactones from D‐Glucose. A Simple Entry into L‐Sugars.
Authors: VALVERDE S. , GARCIA‐OCHOA S. , MARTIN‐LOMAS M. 
Published: May 2016

AbstractThe compounds (Ia) and (VIII), prepared from tri‐O‐acetyl‐D‐glucal, are transformed into the unsaturated lactones (V) and (XII).
ChemInform Abstract: Dioxygen Difluoride: Electron Diffraction Investigation of the Molecular Structure in the Gas.
Authors: HEDBERG L. , HEDBERG K. , ELLER P. G. , RYAN R. R. 
Published: May 2016

AbstractThe results of an electron diffraction study at ‐42 °C confirm the O2F2 molecule to have C2 symmetry, with a short O‐O bond and extraordinarily long O‐F bonds.
ChemInform Abstract: Complex Fluorides with Cu2+ and Pd2+: MPtF6 (M: Pd, Cu) and RbCuPdF5.
Authors: MUELLER B. G. + 
Published: May 2016

AbstractFor the first time, single crystal XRD data are reported for PdPtF6 (space group R3‐C2 3i, Z=3), CuPtF6 (P1‐C1 i, 2) and RbCuPdF5 (Pnma‐D16 2h, 4).
ChemInform Abstract: Synthesis and Crystal Structure Determination of Pb2P4O12·3 H2O.
Authors: KLINKERT B. , JANSEN M. 
Published: May 2016

AbstractThe title compound precipitates on addition of aqueous Pb(NO3)2 to an aqueous solution of Na4P4O12·4 H2O. Single crystals are obtained by the diffusion‐controlled gel crystallization method.
ChemInform Abstract: Structure of the Low‐Temperature Modification of NH4Sn2F5 (γ‐Type).
Authors: SOUFIANE A. , VILMONOT S. , COT L. 
Published: May 2016

Abstractγ‐NH4Sn2F5 is monoclinic, space group C2, Cm, or C2/m, Z = 6. The structure consists of alternating layers of (Sn‐F) and (NH4)+.
ChemInform Abstract: Synthesis and Crystal Structure of Mn4Nb2O9 (I) and Mn2Zn2Nb2O9 (II).
Authors: ROHWEDER U. , MUELLER‐BUSCHBAUM HK. + 
Published: May 2016

AbstractSingle crystals of (I) are prepared by annealing a stoichiometric mixture of MnO and Nb2O5 (Pt‐tube, ≤ 1500 °C, 10 d).
ChemInform Abstract: Mass Spectrometric Investigations of the Vapor Phase Over CrCl3 and CrCl3/Cl2.
Authors: PLIES V. 
Published: May 2016

AbstractIn the CrCl3/Cl2 system, the gaseous molecules CrCl3 and CrCl4 are detected by Knudsen‐cell MS in the temp. range 770‐910 K and their molar heats of formation are determined to be ‐79.2 kcal (CrCl3, 298 K) and ‐103.2 kcal (CrCl4, 298 K).
ChemInform Abstract: Crystal Chemistry of the Fluoride MoF4 and the Fluoromolybdates LnMoF7 (Ln: Lanthanoids).
Authors: COUTURIER J.‐C. , ANGENAULT J. , MARY Y. , QUARTON M. 
Published: May 2016

AbstractTwo phases with compositions very close to MoF4 are obtained by reduction of MoF5 with Si using two different autoclave materials (Mo‐steel and Ni coated with Cu; 140 °C, 2 d, 220 °C, 15 d; 98% yield).
ChemInform Abstract: Variable Antiferromagnetic Exchange in a Series of Binuclear Copper(II) Complexes of Tetradentate (N4) and Hexadentate (N6) Diazine Ligands. Magnetism versus Structure, Bridging and Terminal Ligand Groups, and Chelate Ring Size. Crystal and Molecular Structure of (μ‐1,4‐Bis((6‐methylpyrid‐2‐yl)amino)phthalazine)(μ‐hydroxo)(μ‐nitrato# ‐O)‐bis(nitrato)dicopper(II)‐0.5‐Water, Cu2C20H19N9O10·0.5 H2O.
Authors: THOMPSON L. K. , LEE F. L. , GABE E. J. 
Published: May 2016

AbstractThe title complex (I) crystallizes in the space group P21/a with Z = 8 and contains two different hydroxide‐bridged binuclear molecules in the asym.
ChemInform Abstract: Solvent Effect in the Reduction of α‐Keto Esters by Aqueous Titanium Trichloride.
Authors: CLERICI A. , PORTA O. 
Published: May 2016

AbstractThe reaction of the α‐keto ester (I) with titanium(III) chloride, yielding the dimeric product (III) and the alcohol (IV), is investigated in various solvents.
ChemInform Abstract: Selective Reductions. Part 39. Partial Reduction of Carboxylic Acids with Thexylchloroborane‐Methyl Sulfide. A Direct and Simple Aldehyde Synthesis.
Authors: BROWN H. C. , CHA J. S. , YOON N. M. , NAZER B. 
Published: May 2016

AbstractThe carboxylic acids (I) are reduced with thexylchloroborane‐methyl sulfide to give the aldehydes (II).
ChemInform Abstract: An Unusual Reductive Debromination of 8‐Bromoguanosine by Tri‐n‐butylphosphine.
Authors: CHERN J.‐W. , LEE H.‐Y. 
Published: May 2016

AbstractWhereas 8‐aminoguanosine (Ia), guanosine (Ic), and formycin B do not at all react with dibenzyldisulfide (II) and Bu3P (III), 8‐bromoguanosine (Ib) does, but yields only guanosine (Ic) like the acetate (Id) which gives (Ie) without any formation of the desired 5'‐benzylthio compounds.
ChemInform Abstract: Facile Conversions of Carboxylic Acids into Amides, Esters, and Thioesters Using 1,1′‐Oxalyldiimidazole and 1,1′‐Oxalyldi(1,2,4‐triazole).
Authors: KITAGAWA T. , KURODA H. , SASAKI H. , KAWASAKI K. 
Published: May 2016

AbstractTreatment of the carboxylic acids (I) with 1,1'‐oxalyldiimidazole (II) yields the 1‐acylimidazoles (III) which react with the amines (IV) or alcohols (VIa) or thiols (VIb) to give the carboxamides (V), carboxylates (VIIa) or thiocarboxylates (VIIb).
ChemInform Abstract: A Facile Method for the Synthesis of Chloroiodomethane from Diiodomethane Under Aluminum Mediation.
Authors: LIN Y.‐T. , CHANG M.‐J. , YANG P.‐H. 
Published: May 2016

AbstractFrom a study of the effects of the relative amounts of reagents on reaction time and yield it is seen that best conditions are: (II)/(I) = 20 and (I)/I2 = 9 to complete the formation of (III) via organo‐aluminum intermediates in 2 h. Likewise the mixed dihalomethanes (V) and (VI) may be obtained.
ChemInform Abstract: A Convenient Strategy for Homologation of p‐Oxygenated Benzaldehydes.
Authors: HARIDAS K. , DEV S. 
Published: May 2016

AbstractPyrolysis of the epoxides (IIIa)‐(IIIc) at 240 °C for 5 min gives the desired benzaldehydes (IVa)‐(IVc).
ChemInform Abstract: Enantioselective Aldol Reactions using Chiral Lithium Amides as a Chiral Auxiliary.
Authors: ANDO A. , SHIOIRI T. 
Published: May 2016

AbstractTreatment of ethyl tert‐butyl ketone (I) with a chiral lithium amide gives the lithium enolate (III) which undergoes Aldol reaction with benzaldehyde (IV) to form the erythro‐alcohol (S,S)‐(V).
ChemInform Abstract: Electrophilic Additions to Alkynyl Tosylates. Formation of Vinyl 1,1‐Bisesters and Related Compounds. X‐Ray Structure Determination of E‐1‐Chloro‐1‐(tosyloxy)‐3,3‐dimethyl‐1‐butene.
Authors: STANG P. J. , ROBERTS K. A. 
Published: May 2016

AbstractSyn addition of the acids (II) to the alkynyl tosylates (I) produces the vinyl tosylates (III).
ChemInform Abstract: A Novel Synthesis of Naphthalenic Lignan Lactones.
Authors: PATIL P. A. , JOSHI R. R. , NARASIMHAN N. S. 
Published: May 2016

AbstractThe reaction of the phthalides (I) with PhLi (II) yields the hydroxyphthalans (III) which are converted to the diesters (Va) and (Vb).
ChemInform Abstract: Lactone Formation in the Oxidation of Diols with N‐Iodosuccinimide and Silver Acetate.
Authors: BEEBE T. R. , ADKINS R. , BALDRIDGE R. , HENSLEY V. , MCMILLEN D. , MORRIS D. , NOE R. , NG F. W. , POWELL G. , SPIELBERGER C. , STOLTE M. 
Published: May 2016

AbstractTreatment of the diols (I) and (III) with N‐iodosuccinimide and silver acetate in the absence of light results in the formation of the lactones (II) and (IV).
ChemInform Abstract: New Heterocyclizations with Isocyanides. ‐ 2,3‐Diiminopyrroles; 4,5‐Diiminoimidazoles and 1H‐Pyrrolo(2,3‐b)pyrazines.
Authors: CAPUANO L. , DAHM B. , PORT V. , SCHNUR R. , SCHRAMM V. 
Published: May 2016

AbstractThe preparations of the novel 4,5‐diiminoimidazoles (VI), the novel 2,3‐diiminopyrroles (X), (XIII), (XVI) and the novel pyrrolo (2,3‐b)pyrazine (XIX) are described as is the isolation of the hitherto unknown divinylcarbodiimide (XVIII).
ChemInform Abstract: Synthesis and Oxidation of 2‐(2,5‐Dihydroxyphenyl)‐ethylamine Derivatives. Part 2.
Authors: KUCKLAENDER U. + , BASTIAN U. 
Published: May 2016

AbstractCatalytic oxidation of the title ethylamine derivatives (IV), (VIII) and (X) yields the indole (V) and the indolines (IX) and (XI), respectively.
ChemInform Abstract: Thermal and Photochemical Reactions of Bicyclic Azoalkanes in Concentrated Sulfuric Acid.
Authors: ADAM W. , MIRANDA M. A. 
Published: May 2016

AbstractPhotolysis or thermolysis of the dimethyldiazabicycloheptene (I) results in release of nitrogen, producing the hydrocarbons (II) and/or (III).
ChemInform Abstract: Syntheses, Antitumor Activity and Vascular Relaxing Effect of Purino‐(7,8‐g)‐6‐azapteridines and (1,2,4)Triazino(3,2‐f)purines.
Authors: UEDA T. , ADACHI T. , SAKAKIBARA J. , ASANO M. , NAKAGAMI J. 
Published: May 2016

AbstractThe diaminodimethylxanthin (I) reacts in the presence of an acid to give the purinoazapteridinetetrone (II) which is substituted by the alkylamines (III), producing the triazinopurine diones (IV).
ChemInform Abstract: Potential Anxiolytics and Hypnotics: 1‐(Alkanesulfonamidoalkyl)‐6‐aryl‐8‐halogeno‐s‐triazolo(4,3‐a)‐1,4‐benzodiazepines and Related Compounds.
Authors: VEJDELEK Z. , METYS J. , HOLUBEK J. , BUDESINSKY M. , SVATEK E. , MATOUSOVA O. , PROTIVA M. 
Published: May 2016

AbstractReaction of the glycine (Ia) or alanine hydrazide (Ib) with benzodiazepinethiones (II) gives rise to the title compounds (III) or (IV).
ChemInform Abstract: Photochemical Transformation. Part 72. Stable cis,cis‐Trialkyltriaziridines: Synthesis via Azo/Nitrene Addition, N‐Oxidation.
Authors: MARTERER W. , FRITZ H. , PRINZBACH H. 
Published: May 2016

AbstractThe cyclic trienol (II) and the N‐methyltriazolinedione (I) yield the adduct (III) which is converted to the azide (X).
ChemInform Abstract: Boron Compounds. Part 78. Bis(9‐borabicyclo(4.2.1)nonanes).
Authors: YALPANI M. , BOESE R. , KOESTER R. + 
Published: May 2016

AbstractSolutions of (I) at 150 °C in the presence of quinuclidine (II) yield the 1:1 adducts (III) and (IV) which after rapid cooling are separable by fractional crystallization.
ChemInform Abstract: Conversion of α‐Halo Boronic Esters to Inverted α‐(Methylsulfonyl)oxy Boronic Esters.
Authors: MATTESON D. S. , KANDIL A. A. 
Published: May 2016

AbstractThe haloboronic esters (I) are converted to the p‐methoxybenzyl ethers (III) which are oxidatively cleaved to give the hydroxyboronic esters (IV).
ChemInform Abstract: The Synthesis and Molecular Structure of a Disilacyclopropanimine.
Authors: YOKELSON H. B. , MILLEVOLTE A. J. , HALLER K. J. , WEST R. 
Published: May 2016

AbstractRing closure of tetra(2,6‐dimethylphenyl)disilene (I) with 2,6‐dimethylphenyl isocyanide (II) produces the disilacyclopropanimine (III).
ChemInform Abstract: (α‐Haloalkyl)phosphonium Salts and Sulfur Nucleophiles: A New Type of Reaction Mechanism.
Authors: GALLI R. 
Published: May 2016

AbstractA four‐step mechanism is suggested for the reaction of the halomethylphosphonium halides (I) with sodium N,N‐dimethyldithiocarbamate (II), yielding the substitution products (III).
ChemInform Abstract: Addition Reaction of Silyl Phosphites to 2,5‐Diacetyl‐4‐methylphenol.
Authors: NIFANT'EV E. E. , KUKHAREVA T. S. , POPKOVA T. N. , BEKKER A. R. 
Published: May 2016

AbstractReaction of the diacetylphenyl silyl ether (II) with the silyl phosphite (Ia) gives the bis‐adduct (IIIa) which is not isolated but decomposes during distillation, producing the benzoxaphospholene (IV).
ChemInform Abstract: Synthesis and Reactions of Mercury Peroxyacetylenides.
Authors: YUVCHENKO A. P. , MOISEICHUK K. L. , DIKUSAR E. A. , ZHUKOVSKAYA N. A. , OL'DEKOP YU. A. 
Published: May 2016

AbstractMercuration of the peroxyalkynes (I) yields the mercury peroxyacetylides (IIa) as thermally stable compounds.
ChemInform Abstract: Heat of Reaction of (Norbornadiene)molybdenum Tetracarbonyl with Monodentate and Bidentate Ligands. Solution Thermochemical Study of Ligand Substitution in the Complexes cis‐L2Mo(CO)4.
Authors: MUKERJEE S. L. , NOLAN S. P. , HOFF C. D. , LOPEZ DE LA VEGA R. 
Published: May 2016

AbstractIn the tetracarbonyls such as (I) the stability for some monodentate ligands increases in the order shown.
ChemInform Abstract: Isolation of a Mixed‐Valence Trinuclear Manganese Complex Potentially Relevant to the Photosynthetic Oxygen‐Evolving Complex.
Authors: LI X. , KESSISSOGLOU D. P. , KIRK M. L. , BENDER C. J. , PECORARO V. L. 
Published: May 2016

AbstractThe title complex (I) is obtained by refluxing a methanolic solution of the Schiff base ligand with Mn(OAc)2 followed by air oxidation.
ChemInform Abstract: Proximal Effect of the Nitrogen Ligands in the Catalytic Epoxidation of Olefins by the NaOCl/Manganese(III) Porphyrin System.
Authors: MEUNIER B. , DE CARVALHO M.‐E. , BORTOLINI O. , MOMENTEAU M. 
Published: May 2016

AbstractThe influence of nitrogen bases such as Py or imidazole on the NaOCl epoxidation of olefins catalyzed by manganese porphyrins is investigated.
ChemInform Abstract: Low‐Temperature Reactions of Methane with Photoexcited Nickel Atoms
Authors: CHANG S.‐C. , HAUGE R. H. , BILLUPS W. E. , MARGRAVE J. L. , KAFAFI Z. H. 
Published: May 2016

Abstract(formation of MeNiH under UV irradiation and photolytic decomposition of the insertion product at h. nu.
ChemInform Abstract: Structure and Magnetism of the First Alternating Bimetallic Chain Compound MnCu(obp)(H2O)3·H2O (opb: Oxamidobis(propionato)).
Authors: PEI Y. , KAHN O. , SLETTEN J. , RENARD J.‐P. , GEORGES R. , GIANDUZZO J.‐C. , CURELY J. , XU Q. 
Published: May 2016

AbstractThe title compound (VII) is synthesized as shown (no yields given) and its crystal structure at 92 K is determined (space group P1, Z=2).
ChemInform Abstract: Synthesis and Ligational Properties of the Two Very Large Polyazacycloalkanes (33)aneN11 and (36)aneN12 Forming Trinuclear Copper(II) Complexes.
Authors: BENCINI A. , BIANCHI A. , GARCIA‐ESPANA E. , MICHELONI M. , PAOLETTI P. 
Published: May 2016

AbstractThe title ligands (II) are prepared from (I) by standard reactions.
ChemInform Abstract: Syntheses and X‐Ray Structures of Group 11 Pyrazole and Pyrazolate Complexes. X‐Ray Crystal Structures of Bis(3,5‐diphenylpyrazole)copper(II) Dibromide, Tris(μ‐3,5‐diphenylpyrazolato‐N,N′)trisilver(I)‐2‐Tetrahydrofuran, Tris(μ‐3,5‐diphenylpyrazolato‐N,N′)trigold(I), and Hexakis(μ‐3,5‐diphenylpyrazolato‐N,N′)hexagold(I).
Authors: MURRAY H. H. , RAPTIS R. G. , FACKLER J. P. JUN. 
Published: May 2016

AbstractThe reactions shown in the scheme yield the monomer (III), both trimers (VI) and the hexamer (IX) (yield only given for (III)).
ChemInform Abstract: Novel Basic Ligands for the Homogeneous Catalytic Carbonylation of Methanol. Part 12. Synthesis and NMR Characterization of the New Complex trans‐Dihydridotris((2‐methoxyethyl)diphenylphosphine‐P;P;O,P)ruthenium(II) with a Reactive Ru‐O Bond: Observation of a Low‐Energy Exchange Equilibrium.
Authors: LINDNER E. , SCHOBER U. 
Published: May 2016

AbstractThe reaction of complex (I) with NaBH4 in the presence of the ligand (II) results in the formation of the title complex (III) which is characterized by IR and 31P(1H) NMR spectroscopy.
ChemInform Abstract: Preparation and Use of Tetra‐n‐butylammonium Perruthenate (TBAP reagent) and Tetra‐n‐propylammonium Perruthenate (TPAP reagent) as New Catalytic Oxidants for Alcohols.
Authors: GRIFFITH W. P. , LEY S. V. , WHITCOMBE G. P. , WHITE A. D. 
Published: May 2016

AbstractCatalytic oxidation of the alcohols (VI), (VIII), and (XII) with the tetraalkylammonium tetraoxoruthenates(VII) (III) in the presence of N‐methylmorpholine N‐oxide as a co‐oxidant gives the aldehydes (VII) and (XIII) or the ketone (IX).
ChemInform Abstract: Synthesis of 5‐Carbon‐Substituted 1‐β‐D‐Ribofuranosylimidazole‐4‐carboxamides via Lithiation of a Primary Carboxamide.
Authors: SUZUKI M. , TANAKA H. , MIYASAKA T. 
Published: May 2016

AbstractLithiation of the chloroimidazole (Ia) and subsequent methylation with methyl iodide (II) at a low temperature yield the methyl derivative (Ib) which undergoes reductive dechlorination to produce (Ic).
ChemInform Abstract: Synthesis of 2‐Methoxycarbonyl‐2‐methoxy‐3‐tetrahydropyranols.
Authors: SAROLI A. , DOUTHEAU A. 
Published: May 2016

AbstractThe α‐methoxyacrylate (Ia) is oxidatively cyclized with tert‐butyl hydroperoxide in the presence of vanadyl acetylacetonate, forming the tetrahydropyran derivative (II) which is saponified to produce the free acid (III).
ChemInform Abstract: Synthesis of Aristotelia‐Type Alkaloids. Part 3. (3R,4R)‐ and (3R,4S)‐1‐P‐Menthene‐3,8‐diol and the Corresponding Racemates: Preparation and Assignment of Configuration.
Authors: BURKARD S. , LOOSER M. , BORSCHBERG H.‐J. 
Published: May 2016

AbstractThe racemic title compounds (VI) are prepared starting from the silyl ether (I).
ChemInform Abstract: Cyclofunctionalization Reactions of Epoxy Alcohol Derivatives. Part 3. Cyclization‐Acyl Migration of N‐Benzoylcarbamates to Stereodefined Oxazolidinones. A New, Diastereospecific Route to Thiamphenicol.
Authors: MCCOMBIE S. W. , NAGABHUSHAN T. L. 
Published: May 2016

AbstractThe epoxy alcohol (I) reacts with benzoyl isocyanate (II), producing the N‐benzoylcarbamate (III) which is cyclized in the presence of bases to give the oxazolidone (IVa).
ChemInform Abstract: Regiospecific Functionalization of Dimetallated Isopropenylacetylene, a Synthetic Equivalent of the Isoprene “Anion”. An Efficient Synthesis of the Bark Beetle Pheromones (.+‐.)‐Ipsenol and (.+‐.)‐Ipsdienol.
Authors: KLUSENER P. A. A. , KULIK W. , BRANDSMA L. 
Published: May 2016

AbstractIsopropenylacetylene (I) is metallated to give the bislithio compound (III) which reacts with various electrophiles such as (IV) to form the enyne derivatives (V).
ChemInform Abstract: Ionic and Electronic Conductivity Measurements on Polycrystalline Calcium Conducting β′′‐Alumina.
Authors: SEMKOW K. W. , SAMMELLS A. F. 
Published: May 2016

AbstractIonic conductivity measurements, performed by complex impedance techniques, indicate a change in the predominant conduction mechanism at ∼ 450 °C. Activation energies are determined to be 13.1 kcal/mol at 340‐450 °C and 9.1 kcal/mol at higher temperatures.