bluuebunny/crossref_metadata_2025 huggingface dataset:
ChemInform Abstract: Reactions of Complex Ligands. Part 34. Synthesis of 1,3‐Oxaphospholes via Chromium‐Mediated Cyclization of Carbenes, Carbon Monoxide, and Phosphaalkynes.
Authors: DOETZ K. H. + , TIRILIOMIS A. , HARMS K.
Published: May 2016

Reaction of the chromium carbene complex (I) with the phosphaalkyne (II) gives the annulation product (III) and the oxaphosphole (IV).
ChemInform Abstract: Thermolysis of Cyclotrigermane: Simple Preparation of Digermetanes Containing a Germanium‐Germanium Bond.
Authors: ANDO W. , TSUMURAYA T.
Published: May 2016

The cycloaddition reactions of the cyclotrigermane (I) with the butadiene (II), formaldehyde (V), and thiobenzophenone (VII) are studied.
ChemInform Abstract: Heteronuclear Transition Metal‐Alkyne Clusters. Part 1. Reactions of Tris(alkyne)monocarbonyltungsten Complexes with Octacarbonyldicobalt. Synthesis, X‐Ray Crystal Structure, and Two‐Dimensional NMR Studies of (WCo2(μ‐C2Et2)(μ‐C4Et4)(CO)8).
Authors: SCOTT I. D. , SMITH D. O. , WENT M. J. , FARRUGIA L. J.
Published: May 2016

The structure of (IIIa) is confirmed by an X‐ray analysis (P21, Z=2).
ChemInform Abstract: Synthesis, Spectroscopic Characterization, Magnetic Properties, and Electronic Structure of New Copper(II) μ‐Isophthalato Dimers.
Authors: SHAKHATREH S. K. , BAKALBASSIS E. G. , TSIPIS C. A. , MROZINSKI J.
Published: May 2016

Some new complexes such as (I) (78% yield) are obtained on reaction of piperidinium isophthalate with Cu perchlorate and amines (diethylenetriamine, 2,2'‐bipyridine, 1,10‐phenanthroline) in MeOH.
ChemInform Abstract: Autoxidation of a Dicopper(I) Macrocyclic Complex: Evidence for a Mixed‐Valence Intermediate.
Authors: CABRAL M. F. , CABRAL J. , TROCHA‐GRIMSHAW J. , MCKILLOP K. P. , NELSON S. M. , NELSON J.
Published: May 2016

Interaction of O2 with (I) proceeds via an intermediate species, whose electronic and ESR spectra suggest a mixed‐valence formulation (II).
ChemInform Abstract: Kinetic Resolution of Unnatural and Rarely Occurring Amino Acids: Enantioselective Hydrolysis of N‐Acyl Amino Acids Catalyzed by Acylase I.
Authors: CHENAULT H. K. , DAHMER J. , WHITESIDES G. M.
Published: May 2016

The initial rates of the enzyme‐catalyzed hydrolysis of over 50 N‐acylamino acids and analogues and the resolution of 11 amino acids, e.g. (I), are reported.
ChemInform Abstract: Synthesis of γ,δ‐Unsaturated α‐Amino Acids from Allylsilanes and Glycidyl Cation Equivalents.
Authors: MOOIWEER H. H. , HIEMSTRA H. , SPECKAMP W. N.
Published: May 2016

Reaction of the glycidyl cations derived from Lewis acid treatment of the glycine derivatives (I) or (IV) with the allylsilanes (II) or (V) gives the title compounds (III) or (VI).
ChemInform Abstract: Synthesis and Biological Studies of Simplified Analogues of Lyngbyatoxin A: Use of an Isoxazoline‐Based Indole Synthesis. Quest for Protein Kinase C Modulators.
Authors: KOZIKOWSKI A. P. , SATO K. , BASU A. , LAZO J. S.
Published: May 2016

Lyngbyatoxin A, a potent tumor promoter, activates protein kinase C which serves as an important phosphorylating enzyme.
ChemInform Abstract: FT‐IR Spectral Study of Intramolecular Hydrogen Bonding in Thromboxane A2 Receptor Antagonist S‐145 and Related Compounds. Part 1.
Authors: TAKASUKA M. , YAMAKAWA M. , WATANABE F.
Published: May 2016

With regard to drug conformation and drug design the FT‐IR spectra are measured for the thromboxane A2 receptor antagonists S‐145 (Ia) and BM‐13177 (IIa) and the agonist U‐46619 (III) as well as for analogs (Ib), (IIb), and 6 model compounds such as lauric acid, Me‐(CH2)16‐COOMe, Me‐NH‐SO2‐Ph, and 3‐hydroxyoct‐1‐ene.
ChemInform Abstract: The Conformational Analysis of Bafilomycin A1 (Ia).
Authors: BAKER G. H. , BROWN P. J. , DORGAN R. J. J. , EVERETT J. R.
Published: May 2016

This is achieved unambiguously by 1H and 13C NMR.
ChemInform Abstract: Steric Activity of the Central Atom Free Valence Electron Pairs in Free BrF‐ 6 and IF‐ 6 Ions.
Authors: CHRISTE K. O. , WILSON W. W.
Published: May 2016

Raman polarization and 19F NMR spectra are recorded for MeCN solutions of CsBrF6 and CsIF6.
ChemInform Abstract: X‐Ray Structural Study of Ferromagnetic Vitreous 0.5 La0.7Sr0.3MnO30.5 B2O3.
Authors: MATSUBARA E. , WASEDA Y. , INOMATA K. , HASHIMOTO S.
Published: May 2016

Measurements of the ordinary XRD profile and of the anomalous X‐ray scattering profiles at the Sr K‐absorption edge in the title oxide glass show a highly ordered perovskite‐like region (La0.7Sr0.3MnO3) and a random network structure consisting of BO3 triangles to coexist in the title glass.
ChemInform Abstract: Moessbauer Investigation of the Li2FeCl4 Polymorphs
Authors: LUTZ H. D. , PFITZNER A. , SCHMIDT W. , RIEDEL E. , PRICK D.
Published: May 2016

confirms an inverse spinel structure and a disordered distribution of the cations on the octahedral sites for the HT polymorph of Li2FeCl4 as well as the 1:1 ordering of Li+ and Fe2+ ions on the octahedral sites in the orthorhombic room‐temp.
ChemInform Abstract: Photoluminescence and Impedance Study of p‐GaAs/Electrolyte Interfaces Under Cathodic Bias: Evidence for Flat‐Band Potential Shift During Illumination and Introduction of High‐Density Surface States by Pt Treatment.
Authors: UOSAKI K. , SHIGEMATSU Y. , KANEKO S. , KITA H.
Published: May 2016

The photoelectrochemical hydrogen evolution reaction (HER) at etched and Pt‐treated p‐GaAs electrodes is studied by determining both space layer widths and surface recombination velocities by photoluminescence measurements with excitation light of several wavelengths.
ChemInform Abstract: Synthesis of Large‐Sized SAPO‐5 Crystals with Silicon Occupying Predominantly Phosphorus‐T Sites.
Authors: FINGER G. , JAHN E. , ZEIGAN D. , ZIBROWIUS B. , SZULZEWSKY K. , RICHTER‐MENDAU J. , BUELOW M. +
Published: May 2016

Silicoaluminophosphates of the type SAPO‐5 with low content of silicon are synthesized by crystallization of gels of formal composition (I) in Teflon‐lined autoclaves under autogenic pressure at 453‐475 K for 12‐36 h. The morphology and the dimensions of the SAPO‐5 crystals and in particular their purity are shown to be distinctly influenced by the gel composition.
ChemInform Abstract: Study of Jarosite Formation.
Authors: MARTIN A. , FELTZ A.
Published: May 2016

The hydrolytic precipitation of Fe3+ ions from a Fe2(SO4)3 solution with KOH yields jarosite KFe3(OH)6(SO4)2 as the sole compound detectable by XRD if the mole ratio KOH:Fe3+ is in the range 0.5‐2.0 independent of the reaction temperature.
ChemInform Abstract: Free‐Radical Approach to C‐C Bond Formation of a Trifluoromethyl‐Substituted Carbon. Intramolecular Cyclization.
Authors: MORIKAWA T. , UEJIMA M. , KOBAYASHI Y.
Published: May 2016

The O‐thioimidazolide derivatives (I) of 1‐trifluoromethylhexen‐5‐ols undergo radical‐induced cyclization to form the (trifluoromethyl)cyclopentanes (II).
ChemInform Abstract: Atom Transfer Cyclization Reactions of α‐Iodo Esters, Ketones, and Malonates: Examples of Selective 5‐Exo, 6‐Endo, 6‐Exo, and 7‐Endo Ring Closures.
Authors: CURRAN D. P. , CHANG C.‐T.
Published: May 2016

α‐Iodo ω‐unsaturated carbonyl compounds such as (I) or (V) are subjected to radical‐induced cyclization reactions, initiated either by the use of AIBN or by irradiation with sun light in the presence of a hexaalkyldistannane.
ChemInform Abstract: Photochemical Rearrangement of 3‐Allylindoline‐2‐thiones to 2‐Allylthioindoles.
Authors: NISHIO T.
Published: May 2016

During studies on the photochemical reactivity of cyclic nitrogen‐thiocarbonyl systems, photochemical rearrangement of some 3‐allylindoline‐2‐thiones such as (I) is found to yield the 2‐allylthioindoles (II).
ChemInform Abstract: Short Effective Synthesis of α‐Fluoro Ketones by Palladium‐Catalyzed Decarboxylation Reactions of Allyl α‐Fluoro‐β‐ketocarboxylates.
Authors: SHIMIZU I. , ISHII H.
Published: May 2016

The allyl 2‐fluoro‐3‐oxocarboxylates (II) are decarboxylated in the presence of palladium phosphine catalysts: using THF as the solvent, the 2‐allylated α‐fluoro ketones (III) are formed, whereas in acetonitrile, the fluoro enones (IV) are obtained.
ChemInform Abstract: Catalytic Bromide and Iodide Exchange of Alkyl Chlorides with HBr and HI.
Authors: YOON K. B. , KOCHI J. K.
Published: May 2016

Various alkyl chlorides such as (I) are converted to the bromides (II) upon treatment with gaseous HBr.
ChemInform Abstract: Remote Lithiation of N‐Methallyl Amides.
Authors: KEMPF D. J.
Published: May 2016

The methallylpropionamide (I) is lithiated with s‐butyllithium and then quenched with various electrophiles, forming predominantly the remote substitution products (III), (V), and (VII).
ChemInform Abstract: Catalytic Cyclopropanation of Alkenes with Ethyl Nitrodiazoacetate. A Facile Synthesis of Ethyl 1‐Nitrocyclopropanecarboxylates.
Authors: O'BANNON P. E. , DAILEY W. P.
Published: May 2016

Ethyl nitrodiazoacetate (I) undergoes Rh(II)‐catalyzed coupling with alkenes such as (II) to form cyclopropanes such as (III), together with ene products, e.g. (IV).
ChemInform Abstract: Acyclic Stereoselection in the Alkylation of Chiral Dipole‐Stabilized Organolithiums: A Self‐Immolative Chirality Transfer Process for the Synthesis of Primary Amines.
Authors: GAWLEY R. E. , REIN K. , CHEMBURKAR S.
Published: May 2016

The chiral N‐arylmethyloxazolidinone (I) is regio‐ and diastereoselectively alkylated at the benzylic position to give the derivatives (III) which are almost optically pure after recrystallization.
ChemInform Abstract: Synthesis of Naphthoquinone Derivatives. Part 9. A Synthetic Route of 1,4,8‐Trimethoxy‐2‐naphthalenecarbaldehyde via Duff Formylation of 4,8‐Dimethoxy‐1‐naphthol.
Authors: TANOUE Y. , TERADA A. , MATSUMOTO Y.
Published: May 2016

The desired aldehyde (VI) is prepared by a convenient route using the optimized conditions shown in the scheme.
ChemInform Abstract: Reactions of a Semistabilized Arsonium Ylide with Aldehydes: Counterion Effects on Product Selectivity.
Authors: HSI J. D. , KOREEDA M.
Published: May 2016

The aldehyde (I) reacts with the ylide, generated from triphenylallylarsonium tetrafluoroborate (II) and potassium hexamethyldisilazide, to form the diene (III) exclusively.
ChemInform Abstract: The Regioselective Side‐Chain Lithiation of 2‐Methyl‐3‐thiophenecarboxylic Acid.
Authors: SU H.‐W. , HIROSE K. , SHIRAI K. , KUMAMOTO T.
Published: May 2016

Surprisingly, with 2 equiv. LDA only one dianion is formed from (III) while BuLi generates a mixture of two isomeric dianions.
ChemInform Abstract: An Unusual Dimer of 2‐Mercaptothiophene.
Authors: PONTICELLO G. S. , HABECKER C. N. , VARGA S. L. , PITZENBERGER S. M.
Published: May 2016

On standing several months in a refrigerator, 2‐mercaptothiophene (I) forms the dimer (II).
ChemInform Abstract: Synthesis and Antifungal Activities of 1‐(p‐Methyl‐α‐(4‐(1H‐pyrrol‐1‐yl)phenyl)benzyl)azoles and Some Related Products.
Authors: MASSA S. , STEFANCICH G. , CORELLI F. , SILVESTRI R. , MAI A. , ARTICO M. , PANICO S. , SIMONETTI N.
Published: May 2016

The diarylmethanol (I) is converted to the diarylmethylimidazole (III) which is reduced and coupled with the acid chlorides (IV) to produce the amides (V).
ChemInform Abstract: An Efficient Method for the Synthesis of Trifluoromethyl‐Substituted Heterocycles.
Authors: LINDERMAN R. J. , KIROLLOS K. S.
Published: May 2016

The 1‐alkynyl di‐ or trifluoromethyl ketones (I) undergo cyclocondensation with hydrazine (II), forming the pyrazoles (III).
ChemInform Abstract: 1,3‐Dipolar Cycloaddition of 1‐Methyl‐3‐oxidopyridinium and Sulfonylethenes. A Synthesis of 2‐Tropanols and Monofluorinated 2‐Tropanol.
Authors: TAKAHASHI T. , HAGI T. , KITANO K. , TAKEUCHI Y. , KOIZUMI T.
Published: May 2016

The oxidopyridinium agent (I) reacts with the electron‐defficient olefins (II), forming the bicyclic adducts (III).
ChemInform Abstract: Novel Alkylation with Tetrathiotungstates and Tetrathiomolybdates: Facile Synthesis of Disulfides from Alkyl Halides.
Authors: DHAR P. , CHANDRASEKARAN S.
Published: May 2016

The alkyl halides (I) are treated with piperidinium tetrathiometalates such as (II) to form the disulfides (III).
ChemInform Abstract: Imidazo(1,2‐b)pyridazines. Part 5. Syntheses and Central Nervous Activities of Some 3‐Alkoxy‐6‐benzylthio(substituted benzylthio and other phenylalkylthio)‐2‐phenyl(and substituted phenyl)imidazo(1,2‐b)pyridazines.
Authors: BARLIN G. B. , DAVIES L. P. , IRELAND S. J. , NGU M. M. L.
Published: May 2016

Thirty‐one title compounds of type (V) are prepared and examined for their ability to displace 3H‐diazepam from rat brain membranes.
ChemInform Abstract: New Isoxazole Derivatives Provided with Antihypertensive Activity.
Authors: CARENZI A. , CHIARINO D. , NAPOLETANO M. , REGGIANI A. , SALA A. , SALA R.
Published: May 2016

The isoxazolecarboxylic chloride (I) reacts with piperazine (IIa) or 1,4‐diazacycloheptane (IIb) to give the amides (III).
ChemInform Abstract: Synthesis and X‐Ray Structures of Compounds Having Very Short Phosphorus‐Phosphorus Single Bonds: How Much of the Shortening in P‐P Double Bonds is Due to p‐p π‐Overlap?
Authors: PESTANA D. C. , POWER P. P.
Published: May 2016

The compounds (I) are synthesized in moderate yield ((Ia): 48%) by oxidation of the corresponding lithium phosphinidene borate precursors using CrCl3 (X‐ray structure analysis for (Ia) at 130 K: space group Fdd2, Z=8 and (Ib) at 130 K: Pbca, Z=8).
ChemInform Abstract: Formation of Reactive Cationic Iron Clusters by Halogen Exchange and Abstraction from Nonacarbonylbis(μ3‐fluoromethylidyne)triiron with Lewis Acids.
Authors: LENTZ D. , MICHAEL H.
Published: May 2016

The applicability of the bis(μ3‐fluoromethylidyne)triiron cluster (I) as a starting material for the preparation of bis(μ3‐alkylidyne)triiron clusters is studied.
ChemInform Abstract: Sulfur(IV) Compounds as Ligands. Part 9. Binuclear Molybdenum‐Rhodium Complexes with Sulfur Dioxide as a Bridging Ligand.
Authors: SCHENK W. A. , HILPERT G. H. J.
Published: May 2016

The heterobinuclear complexes (VII) are the first compounds which contain SO2 as a bridging ligand connected with two metal atoms from different groups of the periodic table.
ChemInform Abstract: Facile Substitution of Triphenylphosphine in Wilkinson′s Catalyst by Sn(NtBu)2SiMe2. Syntheses and Molecular Structures of Square‐Planar and Homoleptic Trigonal‐Bipyramidal Stannylene Complexes of Rhodium(I).
Authors: VEITH M. , STAHL L. , HUCH V.
Published: May 2016

The cyclic stannylene (II) seems to be a highly useful ligand in its ability to stabilize low‐valent metal complexes.
ChemInform Abstract: Synthesis of Unprotected (.+‐.)‐Tunichrome An‐1, a Tunicate Blood Pigment.
Authors: HORENSTEIN B. A. , NAKANISHI K.
Published: May 2016

The unstable, oxygen‐sensitive title compound (XII) can be successfully isolated from Py/HF by fractional precipitation with a CH2Cl2‐based solvent system.
ChemInform Abstract: Convenient Synthesis of 4‐Methylhistamine and Racemic α,4‐Dimethylhistamine and α,4‐Dimethylhistidine.
Authors: DAVEY D. D. , LUMMA W. C. JUN.
Published: May 2016

Starting with the imidazole derivative (I), the synthesis of the three title compounds (VIIa), (VIIb), and (XII) is achieved as shown in the reaction scheme.
ChemInform Abstract: Metal Carbonyls
Authors: BRISDON B. J.
Published: May 2016

Review: (118 refs.
ChemInform Abstract: Solid‐State 51V NMR Structural Studies on Supported Vanadium(V) Oxide Catalysts: Vanadium Oxide Surface Layers on Alumina and Titania Supports.
Authors: ECKERT H. , WACHS I. E.
Published: May 2016

Solid‐state wide‐line, MAS, and pulse excitation NMR techniques are applied in a study of the influence of vanadium(V) oxide surface coverage, the nature of the oxide support, and the extent of hydration upon the structure of the supported vanadium phases.
ChemInform Abstract: Lamellar Inorganic Ion Exchangers. H+/Cs+ Ion Exchange in γ‐Titanium Phosphate.
Authors: GONZALEZ E. , LLAVONA R. , GARCIA J. R. , RODRIGUEZ J.
Published: May 2016

From exchange isotherms and titration and hydrolysis curves obtained at 25.0, 40.0, and 55.0 °C by using CsCl + HCl and CsCl + CsOH solutions combined with XRD to follow the ion‐exchange process and the thermal behavior of the exchanged solids the following results are obtained: The easy retention of Cs+ by γ‐titanium phosphate (γ‐TiP), Ti(HPO4)2·2 H2O, in acidic media results in the formation of a crystalline phase H1.5Cs0.5·2 H2O (with an interlayer distance of 11.6 Å) without hydrolysis of the exchanger.
ChemInform Abstract: Conformation of 6‐Amino‐6‐deoxyhexonolactams.
Authors: KEFURT K. , KEFURTOVA Z. , TRSKA P. , BLAHA K. , FRIC I. , JARY J.
Published: May 2016

The interpretation of CD studies of title compounds such as (Ia)‐(IIIa) and five further isomers (all investigated together with their acetyl derivatives; cf.
ChemInform Abstract: Homochiral Fluoroorganic Compounds. Part 12. α‐Hydroxy β‐Fluoro Aldehydes and Esters, Fluoro Epoxides and Glycols from Fluorinated Sulfinyl Chirons.
Authors: BRAVO P. , PIOVOSI E. , RESNATI G.
Published: May 2016

α‐Fluoro‐α'‐sulfinyl ketones carrying an α'‐aryl (or alkyl) substituent, e.g. (I) or (VIII), are reduced with high diastereoselectivity to give the corresponding sec. alcohols (II) or (IX).
ChemInform Abstract: Synthesis of Chiral Cyclic α‐p‐Tolylsulfinyl Ketones.
Authors: CARRENO M. C. , GARCIA RUANO J. L. , PEDREGAL C. , RUBIO A.
Published: May 2016

Reactions of (‐)‐menthyl toluene‐p‐sulfinate (V) with the cycloalkanones (I) give mixtures of the diastereomeric sulfoxides (II) and (III) without epimerization of sulfur.
ChemInform Abstract: Tandem Michael Addition‐1,3‐Dipolar Cycloaddition of Imines of α‐Amino Acid Esters and Aminoacetonitrile.
Authors: BARR D. A. , DONEGAN G. , GRIGG R.
Published: May 2016

Cycloadducts, e.g. (III) and (IV), and Michael adducts, e.g. (VI), are obtained from the reaction of the title imines (I) with alkenes.
ChemInform Abstract: Reactions of Organic Anions. Part 163. Reactions of Nitrobenzophenones with Carbanions Containing Leaving Groups. Vicarious Nucleophilic Substitution of Hydrogen versus Darzens or Wittig‐Horner Reactions.
Authors: MAKOSZA M. , BARAN J. , DZIEWONSKA‐BARAN D. , GOLINSKI J.
Published: May 2016

Carbanions containing leaving groups at the carbanion center such as those derived from (II) react with nitrobenzophenones such as (I), (IV) or (VI) by two pathways.
ChemInform Abstract: Synthesis of 2,2‐Dialkyl‐1‐aminocyclopropanecarboxylic Acids from α‐Chloroimines.
Authors: DE KIMPE N. , SULMON P. , BRUNET P. , LAMBEIN F. , SCHAMP N.
Published: May 2016

The α‐chloroimines (I) react with potassium cyanide (II) to give the aminocyclopropanecarbonitriles (III), together with minor amounts of the aziridines (IV).
ChemInform Abstract: Palladium‐Catalyzed Allylic Acetoxylation: An Exploratory Study of the Influence of Added Acids.
Authors: AKERMARK B. , HANSSON S. , REIN T. , VAGBERG J. , HEUMANN A. , BAECKVALL J.‐E. +
Published: May 2016

The acetoxylation of the cycloalkenes (I) with palladium diacetate (II) is performed in the presence of acids, e.g. methanesulfonic acid or trifluoroacetic acid.
ChemInform Abstract: Formation of Ring‐Retaining Products from the OH Radical‐Initiated Reactions of Benzene and Toluene.
Authors: ATKINSON R. , ASCHMANN S. M. , AREY J. , CARTER W. P. L.
Published: May 2016

The formation yields of phenol and nitrobenzene (from benzene) and of the products (III)‐(VII) are determined by means of gas chromatography with flame ionization detection.
ChemInform Abstract: N‐(4‐Cyanophenyl)‐N′‐carboxymethyl Sulfuric Acid Diamide, a Sweet Tasting Compound.
Authors: UNTERHALT B. , HANEWACKER G.‐A.
Published: May 2016

Reaction of the amino acid ester hydrochlorides (I) with sulfuryl chloride (II) yields the chlorosulfonamides (III) which are coupled with the anilines (IV) and subsequently hydrolyzed to produce the sulfuric acid diamides (V).
ChemInform Abstract: 1,2‐Secopyrethroids: Synthesis of (.+‐.) α‐(RS)‐Cyano‐3‐phenoxybenzyl‐4‐methyl‐3‐phenyl/p‐substituted‐phenylpentan# oates.
Authors: KHER S. M. , KULKARNI G. H.
Published: May 2016

The desired esters (VI) can be synthesized in a simple and elegant manner using the pathway shown in the scheme.
ChemInform Abstract: Diastereoselective Aldol Synthesis Using Acetal Templates.
Authors: ISHIHARA K. , YAMAMOTO H. , HEATHCOCK C. H.
Published: May 2016

The benzaldehyde acetals (II), (V), or (VIII) are coupled with silyl enol ethers such as (I) or (X) in the presence of the Lewis acids titanium tetrachloride, isopropoxytitanium trichloride, or 9‐BBN triflate to form β‐alkoxy ketones.
ChemInform Abstract: o‐Pleiadienequinones. Part 3. Ring Enlargement of o‐Pleiadienequinones with Diazoalkanes.
Authors: IKUINA J. , YOSHIDA K. , TAGATA H. , KUMAKURA S. , TSUNETSUGU J.
Published: May 2016

Reaction of the o‐pleiadienequinones (I) with CH2N2 (II) in the absence of a catalyst gives the pyrazoline derivatives (III), whereas the ring‐enlarged product (IV) is obtained from (Ia) and the diazomethanes (II) or (V) in the presence of BF3·Et2O as Lewis acid catalyst.
ChemInform Abstract: Aziridination of Cyclohex‐3‐en‐1‐ol.
Authors: ATKINSON R. S. , KELLY B. J. , MCNICOLAS C.
Published: May 2016

The cyclohexenol (I) reacts with acetoxyaminoquinazolone (II) under cyclization, forming the fused aziridine (III) which is acetylated to give the acetate (V) as the major product.
ChemInform Abstract: Sterically Crowded Five‐Membered Heterocyclic Systems. Part 3. Unexpected Formation of Stable Flexible Pyrrolidinoxyl Biradicals via Nitrone Aldol Dimers: A Spectroscopic and Mechanistic Study.
Authors: NAZARSKI R. B. , SKOWRONSKI R.
Published: May 2016

Addition of nitrones (I) to Grignard reagent (II) yields a mixture of N‐hydroxy compounds and N‐oxyl radicals which is immediately air‐oxidized to the mono‐ and biradicals (III) and (IV), respectively.
ChemInform Abstract: Radical‐Nucleophilic Substitution (SRN1) Reactions. Part 6. N‐Anions of Diazoles in SRN1 and Oxidative Additions.
Authors: ADEBAYO A. T. O. M. , BOWMAN W. R. , SALT W. G.
Published: May 2016

The anions of various diazoles such as imidazole (I) undergo oxidative addition to the anion (II) of 2‐nitropropane to give the derivative (III).
ChemInform Abstract: Direct Insertion of a Nitrogen Atom into the S‐S Bond of a 1,2,3,5‐Dithiadiazole Ring in a Direct Current Nitrogen Glow Discharge, and X‐Ray Crystal Structure of 4‐Methyl‐1,2,3,5‐dithiadiazole.
Authors: BANISTER A. J. , HANSFORD M. I. , HAUPTMAN Z. V. , WAIT S. T. , CLEGG W.
Published: May 2016

Dimeric aryldithiadiazoles (I) with two S···S interactions between the rings form the corresponding dithiatriazines (II) when treated with atomic nitrogen; the salts (I)+X‐ (X: Br, I, CN, or S3N3) incorporate N atoms as well as to give (II) (no yields given).
ChemInform Abstract: Tetrahydrothiadiazoloisoquinolines: Synthesis and Inhibition of Phenylethanolamine‐N‐methyltransferase.
Authors: GIRARD G. R. , BONDINELL W. E. , HILLEGASS L. M. , HOLDEN K. G. , PENDLETON R. G. , UZINSKAS I.
Published: May 2016

Various 7,8‐fused heterocyclic tetrahydroisoquinolines are prepared as outlined in the reaction scheme.
ChemInform Abstract: Thienylpyrazoloquinolines with High Affinity to Benzodiazepine Receptors: Continuous Shift from Inverse Agonist to Agonist Properties Depending on the Size of the Alkyl Substituent.
Authors: SHINDO H. , TAKADA S. , MURATA S. , EIGYO M. , MATSUSHITA A.
Published: May 2016

Coupling of the chloroquinoline (I) with the hydrazinothiophenes (II) gives the compounds (III) which are cyclized and simultaneously hydrolyzed, yielding the acids (IV).
ChemInform Abstract: Synthesis and Reactions of Phthalazine Derivatives. Part 1. Acylation and Condensation of 1(2H)‐Oxo‐4‐phenyl‐phthalazine‐2‐acetic Acid Hydrazide: Synthesis of Heterobicyclics and Heterobicyclylmethanes.
Authors: EL‐GENDY Z. , ABDEL‐RAHMAN R. M.
Published: May 2016

Reaction of (I) with acetyl chloride, allylisothiocyanate etc. gives derivatives of type (II).
ChemInform Abstract: Synthesis and Investigation of 5a,6‐Dihydro‐12H‐indolo(2,1‐b)(1,3)benzoxazine Derivatives.
Authors: SHACHKUS A. A. , DEGUTIS YU. A. , URBONAVICHYUS A. G.
Published: May 2016

The indolobenzoxazines (III) are prepared by reaction of the 3H‐indoles (I) with 2‐chloromethyl‐4‐nitrophenol (II).
ChemInform Abstract: Substituted 9‐Azabicyclo(3.3.1)nonan‐3‐ones.
Authors: RAO J. , SAXENA A. K.
Published: May 2016

A series of title compounds bearing thioarylpropyl (cf.
ChemInform Abstract: Functionalized 2‐Azabicyclo(3.3.1)nonanes. Part 10. α,α′‐Anellation of 1‐Benzyl‐2,5‐piperidinedione and Isolation of an Azabicyclic Adduct as Stable Hydrate.
Authors: BONJOCH J. , QUIRANTE J. , SERRET I. , BOSCH J.
Published: May 2016

The piperidinedione (I) is converted to the enamine (III) and then treated with acrolein (IV), yielding the diastereomeric adducts (V).
ChemInform Abstract: Evidence for the Donor Capacity of Nitrogen in Acyclic Aminophosphines: A Multinuclear NMR Study.
Authors: KANJOLIA R. K. , SRIVASTAVA D. K. , WATKINS C. L. , KRANNICH L. K.
Published: May 2016

The reactions of the aminophosphines (I)‐(III) with varying mole ratios of BH3·THF are studied by using multinuclear NMR spectroscopy.
ChemInform Abstract: Synthesis and Properties of the Valence Tautomer of cis‐Iodosocyclopropanecarboxylic Acid: 4,5‐Methano‐1‐hydroxyiodoxol‐3(1H)‐one.
Authors: MOSS R. A. , WILK B. , KROGH‐JESPERSEN K. , WESTBROOK J. D.
Published: May 2016

Starting from propiolic acid (I), the title compound (VII) is synthesized via the key intermediate (VI) by both direct oxidation and by chlorination/hydrolysis.
ChemInform Abstract: Synthetic, Spectroscopic, and X‐Ray Studies on Methylmercury(II) and Dimethylthallium(III) Complexes with Cyclopentanone Thiosemicarbazone.
Authors: MACIAS A. , RODRIGUEZ‐ARGUEELLES M. C. + , SUAREZ M. I. , SANCHEZ A. , CASAS J. S. , SORDO J. , ENGLERT U.
Published: May 2016

In order to compare the properties of the coordination modes of cyclopentanone thiosemicarbazone in complexes with soft cations, the compounds (III) and (V) are prepared (no yield given).
ChemInform Abstract: Novel Synthesis and Properties of N‐Bis(trifluoromethyl)nitroxygermaimine, (CF3)2NON=GeH2.
Authors: ANG H. G. , LEE F. K.
Published: May 2016

Germane (II) reacts with the nitrosobis(trifluoromethyl)hydroxylamine (I) to generate the title compound (III).
ChemInform Abstract: Lewis‐Base Adducts of Group 11 Metal(I) Compounds. Part 58. Syntheses, X‐Ray Structures, and Far IR Spectra of the Novel (CuX2(bidentate ligand))‐ (X: Cl or Br) Anion Salts of the (Cu(dpa)2)+ Cation and the Dimeric Iodide ((dpa)CuI2Cu(dpa)) (dpa: di(2‐pyridyl)amine).
Authors: BOWMAKER G. A. , HEALY P. C. , KEPERT D. L. , KILDEA J. D. , SKELTON B. W. , WHITE A. H.
Published: May 2016

Reactions of Cu(I) halides in acetonitrile with di(2‐pyridyl)amine yield the ionic 1:2 adduct (I) (space group P21/c, Z=4), the ionic 1:1.5 adducts (II) (for both P21/n, Z=4), and the iodo‐bridged dimer (III) (Pcab, Z = 8) in dependence on molar ratios and the halide.
ChemInform Abstract: Metal Complexes with Macrocyclic Ligands. Part 30. Synthesis and Structure of Halocuprates of Tetraprotonated 1,4,8,11‐Tetraazacyclotetradecane and Its Cu2+ Complex.
Authors: STUDER M. , RIESEN A. , KADEN T. A.
Published: May 2016

Mixing acidic solutions of 1,4,8,11‐tetraazacyclotetradecane with CuX2 (X: Cl, Br) leads either to hexahalocuprates of the tetraprotonated form of the macrocycle, to (I) (space group P1, Z=1) and its tetrabromocuprate(II) dibromide (yield 62/54%), or to the tetrahalocuprates of the Cu(II) macrocycle (34/71%).
ChemInform Abstract: Ruthenium(II) Complexes of 3,6‐Bis(2‐pyridyl)pyridazine: Synthesis, Characterization, and Effect of the Nonchromophoric Ligands on the Photophysical and Photochemical Properties.
Authors: DENTI G. , SABATINO L. , DE ROSA G. , BARTOLOTTA A. , DI MARCO G. , RICEVUTO V. , CAMPAGNA S.
Published: May 2016

The absorption spectra, luminescence spectra, luminescence decay, and photochemical reactivity of the complexes (III), (VI), (VII) and (VIII), containing the same chromophoric bipyridine‐like ligand and different nonchromophoric ligands, are reported.
ChemInform Abstract: Organic Chemistry of Dinuclear Metal Centers. Part 12. Synthesis, X‐Ray Crystal Structure, and Reactivity of the Di‐μ‐alkylidene Complex (Ru2(CO)2(μ‐CHMe)(μ‐CMe2)(η‐C5H5)2): Alkylidene Linking.
Authors: COLBORN R. E. , DAVIES D. L. , DYKE A. F. , KNOX S. A. R. , MEAD K. A. , ORPEN A. G. , GUERCHAIS J. E. , ROUE J.
Published: May 2016

On treatment with LiMe (II) followed by HBF4 the CO bridge of the μ‐alkylidene complex (I) is converted into μ‐ethylidyne giving the cationic complex (III).
ChemInform Abstract: Reactions of Coordinated Ligands. Part 46. Formation of (Os3(μ‐H)(μ‐CCH2CHMe2)(CO)10) and (Os3(μ‐H)(μ‐CCH=CMe2)(CO)10) by Carbon‐Carbon σ‐Bond and Carbon‐Hydrogen Activation of 3,3‐Dimethylcyclopropene; Crystal and Molecular Structure of (Os3(μ‐H)(μ‐CCH2CHMe2)(CO)10) and Evidence for Its Facile Rearrangement to (Os3(μ‐H)(μ‐CH=CHCHMe2)(CO)10).
Authors: GREEN M. , ORPEN A. G. , SCHAVERIEN C. J.
Published: May 2016

The formation of the title complexes (III) (P1, Z=2) and (IV) under mild conditions is unusual in that both C‐C σ bond and alkene C‐H bond cleavage occurs.
ChemInform Abstract: Synthesis of Cholesterol and Its Analogs with Fluorinated Side‐Chains.
Authors: HUANG W.‐Y. , HU L.‐Q. , GE W.‐Z.
Published: May 2016

Radical‐induced addition of polyfluoroalkyl iodides (II) to the olefinic double bond of the side‐chain of the cholesterol precursor (I) and subsequent reductive deiodination give the compound (IV) which is transformed into the cholesterol analogs (V) with fluorinated side‐chains using conventional methods.
ChemInform Abstract: Cis/Trans Isomers in Cyclic Peptides Without N‐Substituted Amides.
Authors: MIERKE D. F. , YAMAZAKI T. , SAID‐NEJAD O. E. , FELDER E. R. , GOODMAN M.
Published: May 2016

As part of a program to study structure‐activity relationships in the field of peptide opiates, a variety of 14‐membered cyclic derivatives of the parent enkephalin analogue (I) are prepared.
ChemInform Abstract: The Total Synthesis of myo‐Inositol Phosphates via myo‐Inositol Orthoformate.
Authors: BILLINGTON D. C. , BAKER R. , KULAGOWSKI J. J. , MAWER I. M. , VACCA J. P. , DESOLMS S. J. , HUFF J. R.
Published: May 2016

Inositol phosphates play an important role in cellular signal transduction.
ChemInform Abstract: Stereochemistry of Thionuphlutine and Neothiobinupharidine Methiodides and Their Products of Hofmann Degradation.
Authors: WROBEL J. T. , SCHOLL‐ALEKSANDROWICZ A. , CYBULSKI J. , WOJTASIEWICZ K.
Published: May 2016

The pale yellow methiodides (III) and (IV) are obtained from their isomer parent alkaloids such as (I) by methylation.
ChemInform Abstract: Synthesis of Mono‐ and Sesquiterpenoids. Part 16. Synthesis of (‐)‐Pereniporins A and B, Sesquiterpene Antibiotics from a Basidiomycete.
Authors: MORI K. , TAKAISHI H.
Published: May 2016

Pereniporin A (IX) and B (IV) show cytotoxicity against Friend leukemia cells.
ChemInform Abstract: Synthesis and Antitumor Activity of 5‐Deaza‐5,6,7,8‐tetrahydrofolic Acid and Its N10‐Substituted Analogues.
Authors: TAYLOR E. C. , HAMBY J. M. , SHIH C. , GRINDEY G. B. , RINZEL S. M. , BEARDSLEY G. P. , MORAN R. G.
Published: May 2016

The pyridopyrimidinecarboxaldehyde (I) is coupled with the aniline (II) and subsequently reduced to give the N‐substituted aniline (III) which is acylated, yielding the N‐acyl derivatives (V).
ChemInform Abstract: Crystal Structure of YbPS4.
Authors: PALKINA K. K. , KUVSHINOVA T. B. , MAKSIMOVA S. I. , CHIBISKOVA N. T. , TRIPOL'SKAYA T. A.
Published: May 2016

The novel title compound is prepared by solid‐phase reaction at 800 °C in evacuated quartz ampoules (1.33 Pa) starting from Yb(PO3)3 and Yb2S3.
ChemInform Abstract: Crystal Chemistry of cyclo‐Hexaphosphates. Part 1. Structure of Anhydrous Potassium cyclo‐Hexaphosphate.
Authors: AVERBUCH‐POUCHOT M. T.
Published: May 2016

A new alkali‐metal cyclo‐hexaphosphate, K6P6O18, is prepared using the known lithium cyclo‐hexaphosphate (I) as a starting material.
ChemInform Abstract: A Moessbauer Spectroscopy Study of Eu0.1(NH3)0.3TiS2 and Eu0.1TiS2
Authors: COLOMBET P. , GLAUNSINGER W. S. , DANOT M. , ROUXEL J.
Published: May 2016

, two intercalation compounds of TiS2 synthesized from liq.
ChemInform Abstract: Re‐Examination of the Ca‐Ga System and Crystal Structure of CaGa4, a Monoclinic Distortion of the BaAl4 Type.
Authors: BRUZZONE G. , FORNASINI M. L. , MERLO F.
Published: May 2016

In the course of a re‐examination of the Ga‐rich region from CaGa2 to CaGa4 a new phase Ca3Ga8 is identified and found to be isotypic with Eu3Ga8 (Immm, binary variant of the U3Ni4Si4 type).
ChemInform Abstract: Deposition and Reoxidation of Lithium on Gold in the Underpotential Range from Acetonitrile Solutions with Small Amounts of Water.
Authors: WAGNER D. , GERISCHER H.
Published: May 2016

Voltammetric and coulometric studies confirm that Li can be underpotentially deposited on Au at a potential of ‐1.5 V. The deposited Li is unstable in the presence of even small amounts of water in MeCN and a LiOH layer is formed.
ChemInform Abstract: Chemistry of Copper Overlayers on Zinc Oxide Single‐Crystal Surfaces: Model Active Sites for Cu/ZnO Methanol Synthesis Catalysts.
Authors: DIDZIULIS S. V. , BUTCHER K. D. , COHEN S. L. , SOLOMON E. I.
Published: May 2016

The formation of Cu overlayers by evaporation of copper onto chemically different single‐crystal surfaces ((0001), (0001), and (1010)) of ZnO in UHV to model Cu/ZnO methanol synthesis catalysts is followed with core‐level XPS, valence band PES with resonance discharge sources and synchrotron radiation, and low‐energy electron diffraction.
ChemInform Abstract: Double‐Bond Geometry of Norbornene (I): Neutron Diffraction Measurement of a Derivative (II) at 15 K.
Authors: ERMER O. , BELL P. , MASON S. A.
Published: May 2016

The strong preference for exo attack in norbornene (I) is explained by many authors to result from an endo‐pyramidalization, i.e. a sym. out‐of‐plane bending of the double bond (with χ calculated to be in the range 1.7°‐4.9°).
ChemInform Abstract: Asymmetric Oligomerization of Propene (Ia) and 1‐Butene (Ib) with a Zirconocene/Alumoxane Catalyst.
Authors: KAMINSKY W. , AHLERS A. , MOELLER‐LINDENHOF N. +
Published: May 2016

Approximately 80% stereoselectivity in the creation of the second chiral center in (III) is observed during olefin oligomerization when the catalytic system shown in the scheme is used.
ChemInform Abstract: γ‐Silicon Stabilization of Carbonium Ions in Solvolysis. Part 3. Solvolysis of 4‐(Trimethylsilyl)‐3‐methyl‐2‐butyl p‐Bromobenzenesulfonates.
Authors: SHINER V. J. JUN. , ENSINGER M. W. , HUFFMAN J. C.
Published: May 2016

The solvolysis behavior of the individual threo‐ and erythro‐stereoisomers (I) and (II) of the title compound is investigated in order to characterize the nature of the γ‐silyl interaction and conformational dependence in solvolysis.
ChemInform Abstract: Small Rings. Part 68. Unusual Geometry of a Sterically Congested Analogue of (CH)+ 5.
Authors: MAIER G. , RANG H. , KALINOWSKI H.‐O.
Published: May 2016

Both the tricyclopentanol (I) (rearranging to (III) in aprotic solvents) and its isomer (III) generate the same cationic species when treated according to A) or with SbF5/CH2Cl2.
ChemInform Abstract: Photochemically Induced Hydrogen Abstraction by Carbon Radicals in an Adamantane Matrix: Generation and Photochemical Cleavage of 2‐Adamantyl Radicals.
Authors: KORTH H.‐G. , LANGE F. , LUEBBE F. + , MUELLER W. + , SEIDEL M. , SUSTMANN R.
Published: May 2016

The 2‐adamantyl radical and its D15 isotopomer are generated by carbon radicals derived from e.g. bicyclo(3.1.0)hex‐2‐ene.
ChemInform Abstract: An Oxidative Dimerization of Anthrones by Oxygen‐Metal Acetate System.
Authors: YAMAGUCHI M. , HASEBE K. , UCHIDA M. , HIGASHI H. , MINAMI T.
Published: May 2016

A novel oxygen‐induced dimerization of anthrones under mild conditions (cf.
ChemInform Abstract: Copper(I) Salt Catalyzed Reaction of 1,1,1‐Trichloro‐2,2,2‐trifluoroethane with Trimethylsilyl Enol Ethers. A Convenient Synthesis of β‐Chloro‐β‐(trifluoromethyl) α,β‐Unsaturated Carbonyl Compounds.
Authors: OKANO T. , UEKAWA T. , EGUCHI S.
Published: May 2016

The title reaction allows the introduction of the β‐chloro‐β‐(trifluoromethyl)methylene unity into various silyl enol ethers such as (I); aromatic enol ethers give moderate to good yields but aliphatic enol ethers give only lower yields.
ChemInform Abstract: Alkylation of Active Methylene Compounds by Allylic Alcohols Using Tetrakis(triphenylphosphine)palladium(0) Catalysts.
Authors: BERGBREITER D. E. , WEATHERFORD D. A.
Published: May 2016

The palladium‐catalyzed direct allylation of the activated esters (I) with allyl alcohol (II) yields the homoallylic esters (III).
ChemInform Abstract: Light‐Induced Halogenative Decarboxylation of Thiohydroxamic Esters.
Authors: DAUBEN W. G. , KOWALCZYK B. A. , BRIDON D. P.
Published: May 2016

The thiohydroxamic esters (I) are irradiated in the presence of the halotrichloromethanes (II) to give the halides (III), together with the pyridyl thioethers (IV) and carbon dioxide (V).
ChemInform Abstract: Cryptophane Radical Cations as Components of Three‐Dimensional Charge‐Transfer Salts.
Authors: RENAULT A. , TALHAM D. , CANCEILL J. , BATAIL P. , COLLET A. , LAJZEROWICZ J.
Published: May 2016

A delocalized quasi‐free π electron is present in the radical cation of (I) (see preceding paper), according to ESR and measurements with a SQUID magnetometer.
ChemInform Abstract: Reaction of Trimethyliodosilane with Nitromethane.
Authors: VORONKOV M. G. , DUBINSKAYA E. I. , SILAGOV M. V. , VITKOVSKII V. YU.
Published: May 2016

Reaction of nitromethane (I) with trimethyliodosilane and triethylsilane gives methylamine hydroiodide (II).
ChemInform Abstract: Guanidinium Trinitromethanide.
Authors: KRISHNAN A. M. , SJOEBERG P. , POLITZER P. , BOYER J. H.
Published: May 2016

SCF‐MO calculations of the optimized structures of the salt (III), its covalent form (IV), and the analogue (V) indicate the contributions of the ionic structure.
ChemInform Abstract: Asymmetric α‐Alkylation of Cyclohexanone by Mediation of a Chiral Ligand and the Leaving Group Effect of Electrophiles on Enantioselectivity.
Authors: TOMIOKA K. , SHINDO M. , KOGA K.
Published: May 2016

The imine (I), derived from cyclohexanone and cyclohexylamine, is subjected to asymmetric benzylation via formation of a lithiated enamine in the presence of a chiral ligand.
ChemInform Abstract: Copper‐Catalyzed Reductive Metalation of a Propargylic Epoxide to an Allenyllithium Reagent.
Authors: ALEXAKIS A. , MAREK I. , MANGENEY P. , NORMANT J. F.
Published: May 2016

1‐Phenylethynylcyclohexene oxide (I) forms the intermediate dilithiated allene derivative (III) which is treated with the electrophiles water, methyl iodide (V), dimethyl disulfide (VII), benzaldehyde (IX), or carbon dioxide (XI) to yield the anti‐adducts (IV), (VI), (VIII), (X), or (XII).
ChemInform Abstract: 3,3′:4,4′‐Bis(thieno(2,3‐b)thiophene): A Novel Fused Heteroarene.
Authors: KONO Y. , MIYAMOTO H. , ASO Y. , OTSUBO T. , OGURA F. , TANAKA T. , SAWADA M.
Published: May 2016

The planar, centrosym.
ChemInform Abstract: Synthesis of Novel Benzylimidazolines Possessing Antihypertensive and Sedative Activity.
Authors: CAIRNS D. , SNEADER W.
Published: May 2016

The benzyl cyanide (I) undergoes cyclization with the monotosylate of ethylenediamine (II).
ChemInform Abstract: A General Approach to the Synthesis of 5,6‐Dihydro‐2(2H)‐pyranones. Simple Synthesis of α‐Pyrone, (.+‐.)‐Argentilactone, and (.+‐.)‐Goniothalamin.
Authors: CHIDAMBARAM N. , SATYANARAYANA K. , CHANDRASEKARAN S.
Published: May 2016

Treatment of the dihydropyrans (I), (V), and (VII) with tert‐butyl hydroperoxide (II) and pyridinium dichromate results in the formation of the dihydropyranones (III), (VI), and (VIII) mentioned in the title.
ChemInform Abstract: Reactions of 1,5‐Diketones. Part 50. Synthesis of Derivatives of 2,6‐Diphenyl‐3‐ and 3,5‐Dipyridylacetic Acids from α‐Methylene‐1,5‐diketones.
Authors: PAVEL' G. V. , OSTROGORSKAYA T. A. , TILICHENKO M. N.
Published: May 2016

The title compounds (VII), (X) and (XV) are synthesized for the first time.
ChemInform Abstract: Synthesis of a Fluorosecophenanthroindolizidine Analogue.
Authors: VENKATACHALAM S. R. , BADHEKA L. P. , MULCHANDANI N. B.
Published: May 2016

The key step is the intramolecular ring closure of the N‐allyl‐2‐(hydroxymethyl)pyrrolidine (VII).
ChemInform Abstract: The Diels‐Alder Reaction of 1‐Azadienes. The Effect of an α‐Cyano Substituent.
Authors: TENG M. , FOWLER F. W.
Published: May 2016

The unsaturated oxime silyl ether (I) forms the N‐acylated and α‐cyanated product (V) which undergoes desilylation and intramolecular cycloaddition, forming the cis‐fused tetrahydropyridine (VI).
ChemInform Abstract: Intramolecular Cyclization of 1‐(3‐Bromopropyl)uracils.
Authors: DEZOR‐MAZUR M. , KORANIAK H. , LANGER J. J. , GOLANKIEWICZ K.
Published: May 2016

Under basic conditions the anion derived from (I) undergoes cyclization to give the ether (II).
ChemInform Abstract: One‐Pot Synthesis of New Fluorinated 4H‐1,4‐Benzothiazines as Possible Anticancer Agents.
Authors: GUPTA R. R. , THOMAS A. , GAUTAM R. K. , GUPTA V.
Published: May 2016

Cyclocondensation of the substituted 2‐aminobenzenethiols (IV) with 4‐fluorobenzoylacetone (III) gives the title compounds (V).
ChemInform Abstract: A New Class of DNA‐Cleaving Molecules: pH‐Dependent DNA Cleavage by Propargylic and Allenic Sulfones.
Authors: NICOLAOU K. C. , SKOKOTAS G. , MALIGRES P. , ZUCCARELLO G. , SCHWEIGER E. J. , TOSHIMA K. , WENDEBORN S.
Published: May 2016

A variety of 11 cyclic and acyclic unsaturated sulfones such as (VII)‐(X) are prepared as shown for (VII) or by common methods.
ChemInform Abstract: Thermal Stability of Phosphinoacetic Acids.
Authors: VAN DOORN J. A. , MEIJBOOM N.
Published: May 2016

The rate of decarboxylation of (I) increases dramatically and decreases slightly when electron‐withdrawing substituents are present at the α‐position of the carboxylic acid or at the P atom, respectively.
ChemInform Abstract: Organolanthanoids. Part 14. Preparation and Structure of Bis(η5‐cyclopentadienyl)bis(triphenylphosphine oxide)ytterbium(II) ‐ The First X‐Ray Crystal Structure of a Phosphine Oxide‐Organolanthanoid(II) Complex.
Authors: DEACON G. B. , GATEHOUSE B. M. , WHITE P. A.
Published: May 2016

The title complex (III) crystallizes in the space group P21/c with Z=4.
ChemInform Abstract: Sulfur Compounds. Part 128. Synthesis and Structure of ((C5H5)2TiS4AsCH3) ‐ A New Reagent for the Synthesis of Sulfur‐Rich Heterocycles.
Authors: STEUDEL R. , HOLZ B. , PICKARDT J.
Published: May 2016

The title compound (III) (space group P21/c, Z=4) is obtained according to the scheme.
ChemInform Abstract: Aziridination of Vinylsilanes and Vinylstannanes: A New Synthesis of Azirines.
Authors: ATKINSON R. S. , KELLY B. J.
Published: May 2016

Oxidation of the N‐aminoquinazoline (I) with lead tetraacetate (II) gives the intermediate (III) which reacts with the vinylsilanes (IVa), (IVb), and the vinylstannanes (IVc) ‐ (IVe), producing the aziridines (V).
ChemInform Abstract: Chemistry of Polynuclear Metal Complexes with Bridging Carbene or Carbyne Ligands. Part 88. Carbaboranetungsteniridium Compounds; Crystal Structure of the Complex (WIr(μ‐CC6H4Me‐4)(CO)2(PEt3)2(η5‐C2B9H9Me2)).
Authors: JEFFERY J. C. , RUIZ M. A. , SHERWOOD P. , STONE F. G. A.
Published: May 2016

The reaction between the carbyne complex (I) and the Ir‐complex (II) in THF affords the complex (IIIa).
ChemInform Abstract: Chemistry of Polynuclear Metal Complexes with Bridging Carbene or Carbyne Ligands. Part 89. Tetra‐ and Pentanuclear Tungsten‐Rhodium Complexes: Crystal Structures of (W3Rh2(μ‐CO)2(μ‐CMe)(μ‐C(Me)C(O))(μ‐PPh2)2(μ3‐CMe)(CO)2(η‐C5H5)3) and (W3Rh2(μ‐CO)3(μ‐CMe)(μ‐C(Me)PPh2)(μ3‐CMe)(CO)2(η‐C5H5)3).
Authors: DAVIES S. J. , HOWARD J. A. K. , PILOTTI M. U. , STONE F. G. A.
Published: May 2016

Depending on the molar ratio of the reactants the reaction of the Rh‐dimer (I) with the alkylidyne complex (II) yields the products (III), (IV), (V) and (VI) (space group P1, Z=2).
ChemInform Abstract: Chemistry of Polynuclear Metal Complexes with Bridging Carbene or Carbyne Ligands. Part 90. Synthesis of the Complexes (W2M2(μ‐CO)(μ‐CMe)(μ3‐CMe)(μ‐PPh2)2(CO)3(η‐C5H5)2) (M: Rh or Ir) and Related Tetra‐ and Pentanuclear Metal Compounds; Interconversion of Ketenyl and λ5‐Phosphaalkyne Ligands Bridging Tungsten‐Rhodium Bonds.
Authors: DAVIES S. J. , STONE F. G. A.
Published: May 2016

The reaction between the Ir‐dimer (I) and the alkylidyne complex (II) yielding the complex (III) needs more vigorous conditions than the reaction with the corresponding Rh‐dimer.
ChemInform Abstract: Chemistry of Polynuclear Metal Complexes with Bridging Carbene or Carbyne Ligands. Part 91. Steric Implications in the Reactions of the Complexes (M(CR)(CO)2(η‐C5H5)) (M: Mo or W, R: C6H4Me‐4, C6H4OMe‐2, or C6H3Me2‐2,6) with the Compounds (Mo(CO)3(NCMe)3) and (Cu(thf)(η‐C5Me5)) (thf: tetrahydrofuran); Crystal Structure of (Mo3(μ‐CC6H3Me2‐2,6)2(CO)6(η‐C5H5)2).
Authors: DOSSETT S. J. , HILL A. F. , HOWARD J. A. K. , NASIR B. A. , SPANIOL T. P. , SHERWOOD P. , STONE F. G. A.
Published: May 2016

The substituent Ar in the alkylidyne complexes (I) influences the metal nuclearity of the products obtained with some metal‐ligand fragments.
ChemInform Abstract: Metal‐Stabilized Rare Tautomers of Nucleobases. Part 2. 2‐Oxo‐4‐hydroxo Form of Uracil: Crystal Structures and Solution Behavior of Two Platinum(II) Complexes Containing Iminol Tautomers of 1‐Methyluracil.
Authors: SCHOELLHORN H. + , THEWALT U. , LIPPERT B.
Published: May 2016

A model for a metal‐assisted tautomerization of the pyrimidine model nucleobase 1‐methyluracil is presented which, by analogy, could account for mutagenic AT → GC or GC → AT transition in DNA.
ChemInform Abstract: Halochromic Molecules. Part 8. Synthesis and Acidobasic Properties of 3′‐Substituted 6,11‐Dihydrospiro((1)benzopyrano(4,3‐b)indole‐6,9′‐9′H‐xanthenes).
Authors: GUNZENHAUSER S. , BALLI H.
Published: May 2016

A variety of ca. 15 members of the title compounds such as (IV) are synthesized.
ChemInform Abstract: Preparation and Characterization of New Analogues of Dalargin.
Authors: POSPISEK J. , BARTH T. , BESPALOVA Z. D. , TITOV M. I. , MASKOVA H. P. , MOLOKOEDOV A. S. , SEPETOV N. F.
Published: May 2016

The peptides (Ia) and (Ib) are prepared by fragment condensation in solution.
ChemInform Abstract: Synthesis of 2‐Acyl‐4‐hydroxy‐1,3‐cyclohexanediones.
Authors: LAKHVICH F. A. , LIS L. G. , RUBINOV D. B. , RUBINOVA I. L. , AKHREM A. A.
Published: May 2016

Several pathways leading to the formation of the 2‐butanoyl‐4‐hydroxy‐1,3‐cyclohexanedione (IV) are described.
ChemInform Abstract: Enantiospecific Synthesis of (‐)‐(1R,3R,5S)‐1,3‐Dimethyl‐2,9‐dioxabicyclo(3.3.1)nonane.
Authors: MASONI C. , DESCHENAUX P.‐F. , KALLIMOPOULOS T. , JACOT‐GUILLARMOD A.
Published: May 2016

The isomer (VI) of the title compound, which has been isolated from the Norwegian pine infested with the scarab Trypodendron lineatum oliv., is prepared starting from the ester (I) using a simple method.
ChemInform Abstract: Unsaturated 1,4‐cis and 1,4‐trans‐Diaminotetradeoxycycloheptites ‐ Enantiomerically Pure, Polyfunctionalized Tropa Derivatives by Enzymatic Hydrolysis.
Authors: FALK‐HEPPNER M. , KELLER M. , PRINZBACH H.
Published: May 2016

A variety of optically active title compounds such as the sannamine and sporamine aminoglycoside antibiotic analogues (V) or (X) are prepared starting from the tropone derivative (I), the key step being the enzymatic hydrolysis of the "frontal" acetate group in the meso‐diacetates (II).
ChemInform Abstract: Intramolecular Cyclization and Cytotoxicities of Some Mannich Bases of Styryl Ketones.
Authors: DIMMOCK J. R. , ERCIYAS E. , BIGAM G. E. , KIRKPATRICK D. L. , DUKE M. M.
Published: May 2016

Of the title compounds (I) and (III), only the former undergo cyclization to (II) (previously reported for some analogous derivatives), with the extent of cyclization depending on the steric and electronic properties of the amino units.