bluuebunny/crossref_metadata_2025 huggingface dataset:
ChemInform Abstract: Organic Sulfur Mechanisms. Part 32. ω‐Hydroxy‐1‐alkanesulfonyl Chlorides.
Authors: KING J. F. , WEBSTER M. R. , CHIBA N. , ALLEN J. K. , PARKER K. J. M. , RATHORE R. , SKONIECZNY S.
Published: May 2016

The ω‐chloro‐1‐alkanols (I) react with thiourea (II) to form the thiuronium salts (III).
ChemInform Abstract: Zinc Chloride Catalyzed Condensation of Mesityl Oxide with Benzoylacetone.
Authors: AHMAD M. , MIRZA A. H. , ALAUDDIN M. , AHMED M. G.
Published: May 2016

Reaction of mesityl oxide (I) with the 1,3‐diketone (II) in the presence of anhydrous zinc chloride gives a mixture of the isomeric cyclohexenones (III) ‐ (V).
ChemInform Abstract: Synthesis and Properties of Tricyclo(5.3.0.02,8)deca‐3,5‐dien‐9‐one. A New Entry to the C10H10 Manifold.
Authors: GLEITER R. , ZIMMERMANN H. , SANDER W. , HAUCK M.
Published: May 2016

Starting with the bisacetal (I), the title compound (XII) is synthesized as outlined in the reaction scheme.
ChemInform Abstract: Use of Phosphorus Pentoxide. Preparation of Half‐Esters Through Selective Esterification.
Authors: BANERJEE A. , ADAK M. M. , DAS S. , BANERJEE S. , SENGUPTA S.
Published: May 2016

The diacids (I) are treated with the alcohols (II) in the presence of P4O10, yielding the aliphatic half‐ester (III) and minor amounts of the diester (IV).
ChemInform Abstract: Carboalumination of Diphenylacetylene.
Authors: AL‐HASSAN M. I.
Published: May 2016

Reaction of diphenylacetylene (I) with triethylaluminum (II) at a temperature not exceeding 90°C yields almost exclusively cis‐ethylstilbene (V) after hydrolysis.
ChemInform Abstract: Preparation, Reduction and Alkylation of 5,7‐Polymethylenecyclohepta‐(c) and (b)furan‐6‐one.
Authors: BORAI M. E. , ELBARBARY A. A. , SAKKRAN M. , FAHMY M.
Published: May 2016

Furan‐3,4‐dicarboxaldehyde (I) is coupled with the cyclic ketones (II) to give the tricyclic ketones (III).
ChemInform Abstract: Cobalt‐Mediated Radical Addition‐Elimination Carbon‐Carbon Bond Forming Reactions in Synthesis.
Authors: PATEL V. F. , PATTENDEN G.
Published: May 2016

The iodophenyl allyl ether (I) is cyclized in the presence of cobalt salophen (II) and sodium amalgam to form the dihydrobenzofuranylcobalt complex (III).
ChemInform Abstract: Synthesis of 3‐Substituted Indoles via a Modified Madelung Reaction.
Authors: ORLEMANS E. O. M. , SCHREUDER A. H. , CONTI P. G. M. , VERBOOM W. , REINHOUDT D. N.
Published: May 2016

The N‐protected or deprotected title compounds (VIII) or (X) and (XV) are prepared starting from the anilines (I) and (XIII) via reaction with Ac2O (VI) and Ph‐CO‐Cl (XIV) and subsequent cyclization.
ChemInform Abstract: Nucleophilic Additions to Triazolinedione Ylides, Extremely Reactive Carbonyl Equivalents: A New Class of Condensation Reactions.
Authors: WILSON R. M. , HENGGE A.
Published: May 2016

Reaction of 2,3‐dimethylindole (I) with N‐phenyltriazolinedione (II) yields the urazole (III) which is oxidized to produce the ylide (IV).
ChemInform Abstract: Synthesis of 4(5)‐Acyl‐, 1‐Substituted 5‐Acyl‐, and 1‐Substituted 4‐Acyl‐1H‐imidazoles from 4‐Aminoisoxazoles.
Authors: REITER L. A.
Published: May 2016

The 4‐aminoisoxazoles (I), which are prepared by reduction of the corresponding nitro compounds, are acylated to yield the amides (III).
ChemInform Abstract: New Polyheteropolycyclic Ring Systems. Part 25. Synthesis of SteroidType Compounds Derived from 5,5‐Dimethyl‐2,3,5,6‐tetrahydro‐4H‐thiopyrano(3,2‐g)benzothiadiazole‐4‐one.
Authors: RAMADAS S. R. , RAMANA D. V. , BAKTHAVATCHALAM R.
Published: May 2016

The monotosylhydrazone (I) derived from dimedone is cyclized to form the fused thiadiazole (II).
ChemInform Abstract: Dihydroisoquinoline Rearrangement. Part 39. 6,7‐Dimethoxy‐2‐methyl‐1phenylpropargyl‐1,2‐dihydroisoquinoline.
Authors: KNABE J. , HANKE B.
Published: May 2016

The N‐benzoylcyanodihydroisoquinoline (I) is coupled with the propargyl bromide (II) to form the alkylated derivative (III).
ChemInform Abstract: A Convenient Synthesis of lin‐Benzopurines Through a Common Intermediate.
Authors: LEONARD N. J. , KAZMIERCZAK F. , RYKOWSKI A.
Published: May 2016

Dimethylbenzimidazole (I) is converted into a mixture of the isomeric 1,3‐oxazinediones (VI) and (VII) as outlined in the reaction scheme.
ChemInform Abstract: Selective N‐Protection of Medium‐Ring Triamines.
Authors: WEISMAN G. R. , VACHON D. J. , JOHNSON V. B. , GRONBECK D. A.
Published: May 2016

The cyclic triamines (Ia) and (IIa) react with DMF dimethyl acetal (III), forming the tricyclic orthoamides (IV).
ChemInform Abstract: Synthesis of Chiral Crown Ethers from (+)‐ and (‐)‐2‐Hydronaphthoin.
Authors: CHENEVERT R. , AMPLEMAN G.
Published: May 2016

trans‐1,2‐Di(2‐naphthyl)ethylene (I), prepared by a Wittig reaction, is converted to the racemic diol hydronaphthoin (IVa) via the trichloroacetate (III).
ChemInform Abstract: Phosphinimines Derived from Phosphole Dimers by the Staudinger Reaction.
Authors: QUIN L. D. , KEGLEVICH G. , CASTER K. C.
Published: May 2016

The dimeric phospholes (I) are treated with phenyl azide (II) to produce the bisphosphinimines (III) which are thermally cleaved, forming the phosphindole derivatives (IV).
ChemInform Abstract: Carbon‐Hydrogen Bond Activation and Carbon‐Carbon Bond Formation in the Reaction Between Ethylene and Hexaisopropoxyditungsten.
Authors: CHISHOLM M. H. , HAMPDEN‐SMITH M. J.
Published: May 2016

13C(1H) and 1H NMR spectroscopic studies of the reaction between the title compounds (I) and (II) confirm the formation of the alkylidyne complex (IV) via (III) under mild conditions.
ChemInform Abstract: Identification of Intermediates and Products in the Reaction of Porphyrin Iron(III) Alkyl Complexes with Dioxygen.
Authors: ARASASINGHAM R. D. , BALCH A. L. , LATOS‐GRAZYNSKI L.
Published: May 2016

1H NMR studies of the reaction of the title complexes such as (I) with O2 indicate that the oxygenation process proceeds in three steps leading to (II) as the final product via (III) and (IV).
ChemInform Abstract: Polycyclic Compounds. Part 5. Reaction of Aminoanthraquinones with α,β‐Unsaturated Carbonyl Compounds. Synthesis of Disperse Dyes for Polyester.
Authors: AYYANGAR N. R. , LAHOTI R. J. , OTIV S. R. , SRINIVASAN K. V.
Published: May 2016

The aminoanthraquinones (I) undergo cyclocondensation with the methyl ketones (II), producing the pyrido compounds (III) and (IV).
ChemInform Abstract: A General Stereocontrolled Approach to the 5 ‐ 8 Fused Ring System. Application to the Total Synthesis of Marine Natural Product (.+‐.)‐Precapnelladiene.
Authors: MEHTA G. , MURTHY A. N.
Published: May 2016

The tricyclo(6.3.0.0)undecenes (I) are synthesized and transformed into the cis‐bicyclo(6.3.0)undecane‐2.6‐diones (II) via ruthenium‐catalyzed oxidation.
ChemInform Abstract: Amino Acids and Amino Sugars from Bromodeoxyaldonolactones. Part 8.
Authors: BOCK K. , LUNDT I. , PEDERSEN C.
Published: May 2016

The amino sugars (Ic), (IVb), (VII), or (VIII) are synthesized as shown in the scheme starting from the educts (Ia), (IIIa), (Va), or (VI), respectively.
ChemInform Abstract: Enolates of Carbohydrates. Part 6. New Syntheses of Derivatives of 3‐Amino‐2,3,6‐trideoxy‐3‐C‐methyl‐L‐xylo‐hexopyranose, L‐Vancosamine, D‐Rubranitrose, and Precursors of L‐Decilonitrose and D‐Kijanose.
Authors: KLEMER A. , WILBERS H.
Published: May 2016

The uloses L‐(I) are selectively methylated to the products L‐(III) + L(IV).
ChemInform Abstract: The Active Surface Area Increase of Rhodium Electrodes Through Electroreduction of Oxide Layers Produced by Fast Periodic Potentials
Authors: CHIALVO A. C. , TRIACA W. E. , ARVIA A. J.
Published: May 2016

has been investigated at 30 °C by changing systematically the parameters of the perturbing potential including potentiostatic steps.
ChemInform Abstract: Preparation of Mono‐ or Zerovalent Nickel by Single or Successive One‐Electron‐Transfer Steps in the Photoreduction of Silica‐Supported Nickel Catalysts.
Authors: BONNEVIOT L. , CAI F. X. , CHE M. , KERMAREC M. , LEGENDRE O. , LEPETIT C. , OLIVIER D.
Published: May 2016

Ni2+/SiO2 precursors have been prepared by competitive cation exchange between nickel hexaammine complexes and NH4+ ions on SiO2 and the mild reduction of Ni2+ by UV irradiation in H2 or CO atmosphere has been studied by ferromagnetic resonance, EPR, UV‐VIS, and IR spectroscopy as well as by temp.‐programmed desorption.
ChemInform Abstract: Properties of Boron‐Substituted ZSM‐5 and ZSM‐11 Zeolites.
Authors: COUDURIER G. , AUROUX A. , VEDRINE J. C. , FARLEE R. D. , ABRAMS L. , SHANNON R. D.
Published: May 2016

NMR and IR spectroscopic results show that the B‐substituted title zeolites contain four‐coordinated B in the hydrated state and three‐coordinated B in the dehydrated state.
ChemInform Abstract: Preparation and Structure Refinement of (Eu2+ 1,22Eu3+ 0,39Li0,39)S2.
Authors: PALAZZI M. , TOMAS A.
Published: May 2016

EuLiS2 has been prepared by heating a mixture of EuS and Li2CO3 at 730 °C in a H2S stream.
ChemInform Abstract: Interconversion of Bicyclooctadienes and Cyclooctatrienes Formed by Intramolecular Photocycloaddition of Phenyl Ketones Containing Remote Double Bonds.
Authors: WAGNER P. J. , NAHM K.
Published: May 2016

The o‐ and p‐alkenoxyacetophenones (I) and (V) on irradiation (313 or 365 nm) undergo a prim. (2 + 2)photocycloaddition to yield bicyclo(4.2.0)octa‐2,4‐dienes (II) and (VI), resp., which at once isomerize thermally to the cyclooctatrienes (III) and (VII), resp., the stability of which depends on substitution (GC chemical yields 70‐100%); (IIId), however, is not detected because of its instabilityprobably due to the gem‐dimethyl substitution.
ChemInform Abstract: Palladium‐Catalyzed Allylic Oxidation of 1‐(p‐Toluenesulfonyl)‐2‐propene and 1‐(Trimethylsilyl)‐1‐(p‐toluenesulfonyl)‐2‐propene.
Authors: MUZART J. , PETE J.‐P. , RIAHI A.
Published: May 2016

Allylic oxidation of the allylic sulfone (I) and its trimethylsilyl derivative (III) by t‐BuOOH (IV) or O2/H2O gives the tert‐butyl peroxoether (V), the allylic alcohol (VI), and the aldehyde (VII).
ChemInform Abstract: Cycloheptatriene Furanones and Bicyclo(5.3.0)decatrienone. Unusual Cycloaddition with 4‐Phenyl‐1,2,4‐triazoline‐3,5‐dione (PTAD).
Authors: SABA A. , DE LUCCHI O.
Published: May 2016

The phenyltriazolinedione (II) reacts with the cycloheptatrienofuranones (I) and (IV) to produce the cycloadducts (III) and (V).
ChemInform Abstract: Competitive Electrocyclic Reaction of o‐Quinodimethane: Sequential Electrocyclic‐Double (3,3)Sigmatropic Reactions for the Construction of 4‐Alkylideneisochroman‐3‐ones.
Authors: SHISHIDO K. , KOMATSU H. , FUKUMOTO K. , KAMETANI T.
Published: May 2016

The allyl alkenylbenzocyclobutenylcarboxylates (II), derived from the cyanobenzocyclobutenes (I), undergo rearrangement on thermolysis, producing the isochromanones (III) and (IV), together with the dihydronaphthalenes (V).
ChemInform Abstract: Electroorganic Chemistry. Part 108. A New Method for Regioselective Synthesis of 2‐Substituted 1‐(Methoxycarbonyl)‐1,2‐dihydropyridines.
Authors: SHONO T. , MATSUMURA Y. , ONOMURA O. , YAMADA Y.
Published: May 2016

The 2‐substituted 1‐methoxycarbonylpiperidines (I) are converted to the corresponding dihydropyridines (V) by electrochemical dehydrogenation, followed by bromomethoxylation and elimination of HBr and MeOH.
ChemInform Abstract: Cardiotonic Agents. Part 1. Novel 8‐Aryl‐Substituted Imidazo(1,2‐a)‐ and ‐(1,5‐a)pyridines and Imidazo(1,5‐a)pyridinones as Potential Positive Inotropic Agents.
Authors: DAVEY D. , ERHARDT P. W. , LUMMA W. C. JUN. , WIGGINS J. , SULLIVAN M. , PANG D. , CANTOR E.
Published: May 2016

Reaction of the phenyl ketones (I) or (V) with imidazole (IIa) or its 2‐methyl derivative (IIb) gives the 5,6‐dihydroimidazopyridines (III) and (VI) respectively.
ChemInform Abstract: Synthesis and Photosensitized Oxygenation of 2,6‐Diaryl‐2,3‐dihydro‐3‐ thiopyridazines.
Authors: NADA A. , ZAYED M. F. , REFAE Z.
Published: May 2016

The tetrahydropyridazinone (III) is obtained by cyclocondensation of the thenoylpropionic acid (I) and phenylhydrazine (II).
ChemInform Abstract: Aromatase Inhibition by 5‐Substituted Pyrimidines and Dihydropyrimidines.
Authors: TAYLOR H. M. , JONES C. D. , DAVENPORT J. D. , HIRSCH K. S. , KRESS T. J. , WEAVER D.
Published: May 2016

Reaction of 5‐lithio pyrimidine, prepared in situ from the corresponding 5‐bromo derivative (I), with the ketones (II) gives the pyrimidinyl carbinols (III).
ChemInform Abstract: A Facile Synthesis of Pyrrolo(1,2‐a)pyrimidines and Pyrrolo(1,2‐a)imidazoles.
Authors: ROSS J. R. , VISHWAKARMA L. C. , SOWELL J. W. SEN.
Published: May 2016

The acetyl methyl carbinol (II) and the β‐aminopropionate (I) react with the tert‐butyl cyanoacetate (III) to give the pyrrole (IV) which is cyclized using methanesulfonic acid to yield the pyrrolopyrimidine (Va).
ChemInform Abstract: Synthesis and Antiviral Activity of 9‐(4‐Hydroxy‐3‐(hydroxymethyl)but‐ 1‐yl)purines.
Authors: HARNDEN M. R. , JARVEST R. L. , BACON T. H. , BOYD M. R.
Published: May 2016

The bromoacetal (I) is coupled with the chloropurine (II) to produce the key intermediate (III).
ChemInform Abstract: 6‐Methoxy‐2H‐pyran‐3(6H)‐one as a Synthon for the Preparation of Pyranoquinolines, ‐quinazolines, and ‐benzodiazepines. Part 121.
Authors: EIDEN F. , WUENSCH B. +
Published: May 2016

Coupling of the furan (I) with the pyranone (II) yields the benzopyranone (IV) via the diastereomers (III).
ChemInform Abstract: Synthesis and Exciton Optical Activity of D3 Cryptophanes.
Authors: CANCEILL J. , COLLET A. , GOTTARELLI G. , PALMIERI P.
Published: May 2016

The optically active D3 cryptophanes (IV) are synthesized and their absolute configurations established unambiguously.
ChemInform Abstract: Synthesis of Polyfunctionalized Acylsilanes via Propenoyltrimethylsilane.
Authors: RICCI A. , DEGL'INNOCENTI A. , BORSELLI G. , REGINATO G.
Published: May 2016

The N‐ or S‐silyl derivatives (I) are coupled with trimethylsilyl vinyl ketone (II) to produce the α‐silylated silyl enol ethers (III).
ChemInform Abstract: First Stable Selenabenzene Analogue, 2‐Cyano‐1‐methyl‐4‐phenyl‐1‐selenanaphthalene: Synthesis and Reactions.
Authors: HORI M. , KATAOKA T. , SHIMIZU H. , TSUTSUMI K. , IMAOKA S.
Published: May 2016

Reaction of the phenylselenanaphthylium perchlorate (I) with cyanide, followed by methylation and deprotonation gives the selenanaphthalene (VII) mentioned in the title.
ChemInform Abstract: Crystal Structures and Stereospecific Propylene Polymerizations with Chiral Hafnium Metallocene Catalysts.
Authors: EWEN J. A. , HASPESLAGH L. , ATWOOD J. L. , ZHANG H.
Published: May 2016

The Hf complexes (I) and (II) crystallize in the space group C2/c with Z=4 and are isostructural with the Ti and Zr analogues.
ChemInform Abstract: Synthesis of Organo‐Lead Ynethers.
Authors: PONOMAREV S. V. , KOSTYUK A. S. , LORBERTH J. , LUTSENKO I. F.
Published: May 2016

Reaction of the alkoxyacetylenes (II) with the plumbylsilazane (I) gives the plumbylethynyl ethers (III).
ChemInform Abstract: Alkyne Cyclizations at Reduced Tantalum Centers: Synthesis and Molecular Structure of (η6‐C6Me6)Ta(O‐2,6‐iPr2C6H3)2Cl.
Authors: BRUCK M. A. , COPENHAVER A. S. , WIGLEY D. E.
Published: May 2016

(IIIa) reacts with PCl5 (benzene, 25 °C) to release quantitatively hexamethylbenzene.
ChemInform Abstract: Organodiiron “Electron Reservoir” Complexes Containing a Polyaromatic Ligand: Syntheses, Stabilization, Delocalized Mixed Valences, and Intramolecular Coupling.
Authors: LACOSTE M. , VARRET F. , TOUPET L. , ASTRUC D.
Published: May 2016

Polyaromatics can be complexed by reaction with η5‐C5Me5Fe(CO)2Br and Al2Cl6 in the melt or in an inert solvent (110‐140 °C, 2 d) to give the new cations (Ib), (II), and (IIIb) isolated as their PF6 salts in 30‐40% yield.
ChemInform Abstract: A “Clustered Cluster” with a “Pinwheel” Ligand Array. Synthesis and Structure of a Trinuclear Cupracarborane.
Authors: KANG H. C. , DO Y. , KNOBLER C. B. , HAWTHORNE M. F.
Published: May 2016

The "charge‐compensated" carborane (V), generated by deprotonation of the oxidative coupling product (III) of (I) and the Lewis base (II), reacts with anhydrous CuCl to give the novel title cluster (VII).
ChemInform Abstract: Mixed Ruthenium‐Rhodium Trinuclear Complex (Ru2Rh(μ3‐O)(μ‐CH3COO)6(L)3)+ (L: H2O or Pyridine).
Authors: SASAKI Y. , TOKIWA A. , ITO T.
Published: May 2016

The complexes (I) are prepared by refluxing a mixture of RuCl3·3 H2O, RhCl3·3 H2O, and sodium acetate in acetic acid/water or acetic acid/methanol in the absence or presence of pyridine and separation from homometal clusters by chromatography (yields given in mg).
ChemInform Abstract: Reactions of Osmium Tetroxide with Imidazoles.
Authors: KOBS S. F. , BEHRMAN E. J.
Published: May 2016

The reactions of imidazoles with OsO4 both in the absence and presence of ligands other than imidazoles are studied kinetically.
ChemInform Abstract: Porphyrins. Part 22. Synthesis of Porphyrins with Two Cyclopentane Rings.
Authors: PONOMAREV G. V. , SHUL'GA A. M.
Published: May 2016

Vilsmeyer reaction with the porphyrin (I) takes place at the meso position, producing the Schiff bases (III) and (IV) which cyclize at an elevated temperature to give the cyclopentane derivative (V).
ChemInform Abstract: Reactions of a New Type of Intermediate Formed by Triflate Rearrangement.
Authors: BINKLEY R. W. , SIVIK M. R.
Published: May 2016

Treatment of the pyranoside (VIIa), prepared from (I) as outlined in the reaction scheme, with triflic anhydride (VIII) produces the triflate (VIIb).
ChemInform Abstract: The Crystal Structure of Eu3Ga5,
Authors: GRIN YU. N. , YATSENKO S. P. , FEDOROVA E. G. , SABIRZYANOV N. A. , SICHEVICH O. M. , YARMOLYUK YA. P.
Published: May 2016

which is obtained from the elements by arc melting in argon atmosphere and annealing at 600 °C (400 h), is studied by single crystal XRD.
ChemInform Abstract: Fluoride Complexes of Copper(II). Part 6. Crystal Structure of Ba7CuFe6F34.
Authors: RENAUDIN J. , FEREY G. , DE KOZAK A. , SAMOUEL M.
Published: May 2016

The title compound crystallizes in the monoclinic space group C2/m with Z=2.
ChemInform Abstract: Influence of the Degree of Cationic Ordering on the Dielectric Properties of Some Phases of “Tetragonal Tungsten Bronze”‐Type.
Authors: THORET J. , RAVEZ J.
Published: May 2016

The tetragonal tungsten bronze‐type ferroelectric ceramics Sr2KNb5O15, Pb2KNb5O15, Ba2AgNb5O15, and Pb2AgNb5O15 have been annealed at different temp. (550, 760, and 900 °C, 3 months) and the influence of these thermal treatments on the crystal structure, dielectric properties, and Curie temp. TC are described.
ChemInform Abstract: Spectrophotometric Study of Complexation Equilibria Between HCrO‐4 and Cl‐ Ions
Authors: MIRALLES N. , SASTRE A. , AGUILAR M.
Published: May 2016

has been performed at constant ionic strength of 3M. It is suggested that the reaction outlined in the scheme takes place under the experimental conditions used and its reaction constant is determined to be log β11 = 1.37.
ChemInform Abstract: Mechanism of Steel Corrosion in Concentrated NaOH Solutions.
Authors: ZOU J.‐Y. , CHIN D.‐T.
Published: May 2016

The polarization curves of an initially oxide‐free rotating steel (Fe containing 0.08‐0.13% C, 0.3‐0.6% Mn, 0.04% P, 0.05% S) disk electrode have been measured in 1‐19 N NaOH at 25‐80 °C. The soluble corrosion products are identified by the rotating ring‐hemisphere electrode technique.
ChemInform Abstract: Orbital Symmetries and Magnetic Interaction Between Copper(II) Ions and the o‐Semiquinone Radical. Magnetic Studies of (Di‐2‐pyridylamine)(3,5‐di‐tert‐butyl‐o‐semiquinonato)copper(II) Perchlorate and Bis(bis(3,5‐di‐tert‐butyl‐o‐semiquinonato)copper(II)).
Authors: KAHN O. , PRINS R. , REEDIJK J. , THOMPSON J. S.
Published: May 2016

Magnetic susceptibility and EPR studies are reported for the two title complexes (I) and (II), whose structures are known.
ChemInform Abstract: Magnetic, Spectroscopic, and Structural Characterization of Singlet ⇌ Quintet Transitions in Iron(II) Complexes of Methyl‐Substituted Pyridinylthiazoles.
Authors: BAKER A. T. , GOODWIN H. A. , RAE A. D.
Published: May 2016

The complexes (I), prepared by direct reaction of hot ethanolic solutions of the ligand and the appropriate metal salt in the molar ratio 3:1, are investigated by variable‐temp.
ChemInform Abstract: Nucleophilic Attacks on Carbon‐Carbon Double Bonds. Part 34. Intramolecular Element Effect in Competitive Expulsion of Two Halide Nucleofuges as a Tool for Investigating the Rapid Step of Nucleophilic Vinylic Substitution.
Authors: AVRAMOVITCH B. , WEYERSTAHL P. , RAPPOPORT Z.
Published: May 2016

The observation of the disubstituted products (IV) or (VII) indicates the competition of mono‐ and disubstitution.
ChemInform Abstract: Reaction of Ynamines with Aromatic Bifunctional Reagents.
Authors: TOLCHINSKII S. E. , KORMER M. V. , MARETINA I. A. , PETROV A. A.
Published: May 2016

The reactions of the enynamines (I) with pyrocatechol (II), o‐aminophenol (IV) or o‐phenylenediamine (VI) proceed regiospecifically at the acetylenic bond to give the heterocycles (III), (V) and (VII).
ChemInform Abstract: Preparation of 1,1,2,3‐Tetrachloropropene ‐ Starting Material for the Production of the Herbicide Triallate.
Authors: TREGER YU. A. , SIROVSKII F. S. , BERLIN E. R. , VELICHKO S. M. , ZANAVESKIN L. N.
Published: May 2016

The dehydrochlorination of the polychloropropanes (I) and (IV) is performed in the laboratory and in pilot plants using continuous or batch processes.
ChemInform Abstract: Hypervalent Iodine Oxidation of p‐Alkoxyphenols and Related Compounds: A General Route to p‐Benzoquinone Monoacetals and Spiro Lactones.
Authors: TAMURA Y. , YAKURA T. , HARUTA J. , KITA Y.
Published: May 2016

Oxidation of the alkoxyphenols (I) with iodosylbenzene bis(trifluoroacetate) in the presence of alcohols such as methanol (II) produces the p‐benzoquinone monoacetals (III).
ChemInform Abstract: Benzofuran Derivatives. Part 3. On the Reactivities of the Intermediate in Benzofuran Synthesis.
Authors: HORAGUCHI T. , MATSUDA S. , TANEMURA K. , SUZUKI T.
Published: May 2016

2‐Acetyl‐4‐nitrophenyloxyacetic acid (Ia) reacts with acetic anhydride under various conditions to give the intermediate (IIa) which is dehydrated and partly decarboxylated to produce the benzofurans (III) and (IV).
ChemInform Abstract: A New Synthetic Method for ortho‐Substituted Benzanilides.
Authors: KATRITZKY A. R. , FAN W.‐Q.
Published: May 2016

Benzanilide (I) is lithiated and treated with carbon dioxide (II) to form the intermediate (III).
ChemInform Abstract: Indole N‐Carbonyl Compounds: Preparation and Coupling of Indole‐1‐carboxylic Acid Anhydride.
Authors: BOGER D. L. , PATEL M.
Published: May 2016

Indole (I) is lithiated and then carboxylated to form indole‐N‐carboxylic acid (II) which is treated with 1‐(3‐(dimethylamino)propyl)‐3‐ ethylcarbodiimide hydrochloride, yielding the carboxylic anhydride (III).
ChemInform Abstract: Acetylenic Fragmentation of Acyl Derivatives of Fischer′s Base.
Authors: PRZHIYALGOVSKAYA N. M. , KON'KOV L. I. , TARSHITS D. L. , SALMINA S. V. , SEGIZOVA N. T. , SUVOROV N. N.
Published: May 2016

Fischer's base (I) reacts with the acyl chlorides (II) to give the enamino ketones (III).
ChemInform Abstract: Studies on Fluoroalkylation and Fluoroalkoxylation. Regioselective Synthesis of Fluoroalkylated Imidazoles.
Authors: CHEN Q.‐Y. , QUI Z.‐M.
Published: May 2016

Regioselective fluoroalkylation of sodium imidazolide (I) with the fluoroalkyl iodides and bromides (II) yields the 4‐substituted imidazoles (III).
ChemInform Abstract: Synthesis of Thiazole Derivatives with Positive Inotropic Effect.
Authors: KOSARY J. , KASZTREINER E. , RABLOCZYK G. , VITALIS B.
Published: May 2016

The thiazoles (III) are prepared from the thioureas (I) and the α‐bromo ketones (II).
ChemInform Abstract: 1,3,3‐Trimethylpiperidine as a Substrate for Mercury(II) Dehydrogenations.
Authors: MOEHRLE H. + , CLAAS M.
Published: May 2016

Oxidation of the trimethylpiperidine (I) with mercury(II) acetate yields a mixture of the carbinolamine (II), the lactam (III), and the tetrahydroanabasine derivative (IV).
ChemInform Abstract: Synthesis of 4‐Substituted 1‐Methyl(benzyl)‐2,5‐dimethyl‐4‐R‐aminopiperidines.
Authors: KUZNETSOV V. V. , GAIVORONSKAYA L. A. , ROMERO R. M. , STASHENKO E. E. , ZAKHAROV P. I. , PROSTAKOV N. S.
Published: May 2016

Reaction of the Schiff bases (I) with the organometallic compounds (II) yields the piperidinylamines (III).
ChemInform Abstract: A New Method for the Synthesis of Novel 6‐Quinoxalinylpyrazolo(5,1‐c)‐(1,2,4)triazines.
Authors: KURASAWA Y. , SATOH A. , NINOMIYA S. , ARAI H. , ARAI K. , OKAMOTO Y. , TAKADA A.
Published: May 2016

The quinoxaline (I) reacts with the diazonium salt (II) to give the hydrazone (III), together with its tautomer (IV).
ChemInform Abstract: Synthesis of Heterocycles. Part 7. Synthesis and Antimicrobial Activity of Some 7H‐s‐Triazolo(3,4‐b)(1,3,4)thiadiazine and s‐Triazolo(3,4‐b)‐(1,3,4)thiadiazole Derivatives.
Authors: EWEISS N. F. , BAHAJAJ A. A.
Published: May 2016

Cyclization of the aminotriazolethiones (I) with chloroacetonitrile (II), phenacyl chloride (V), bromocyan (VII), or carbon disulfide (IX) yields the heterobicycles (IV), (VI), (VIII), or (X).
ChemInform Abstract: Intramolecular Cyclization of Ethyl ω‐(5‐Amino‐4‐aminocarbonylimidazol‐ 1‐yl)carboxylates.
Authors: BRIDSON P. K. , MCGOWAN A. , WILSON C. M. , YEH Y. M.
Published: May 2016

Aminocyanoacetamide (I) reacts consecutively with triethyl orthoformate (II) and the amino esters (III) to give the 3‐alkoxycarbonylalkyl‐5‐ aminoimidazole‐4‐carboxylic amides (IV) which are hydrolyzed, producing the carboxylic acids (V).
ChemInform Abstract: Concave Reagents: Syntheses of Macrobicyclic Pyridines.
Authors: LUENING U. +
Published: May 2016

Five new macrocyclic pyridines (VII) and (VIII) are synthesized as shown in the scheme and their basicity is determined in EtOH.
ChemInform Abstract: Synthesis and Reactions of Pyrrolo(1,2‐a)(3,1,6)benzothiadiazocines.
Authors: CHEESEMAN G. W. H. , VARCOUNIS G.
Published: May 2016

The pyrrolobenzothiadiazocinone (Va) is prepared by trimethylaluminum‐ induced ring closure of the N‐(2‐aminophenyl)pyrrolyl ethoxycarbonylmethyl sulfide (Id).
ChemInform Abstract: Terpenes and Terpene Derivatives. Part 21. Synthesis of rac‐4,5‐Dihydro‐β‐curcumene‐4,5‐diol.
Authors: WEYERSTAHL P. , MARSCHALL‐WEYERSTAHL H. , SCHOLZ S.
Published: May 2016

Hydrolysis of the β‐curcumene epoxide (I) affords the title compound (II) as a single homogeneous diastereomer.
ChemInform Abstract: Synthesis and Biological Activity of 5‐(2,2‐Difluorovinyl)‐2′‐deoxyuridine.
Authors: BOBEK M. , KAVAI I. , DE CLERCQ E.
Published: May 2016

Starting with the pyrimidine derivative (I), difluorovinyluracil (VI) is synthesized as outlined in the reaction scheme.
ChemInform Abstract: Amino Acids and Peptides. Part 202. Oxytocin Analogues with Non‐Coded Amino Acid Residues in Position 8: (8‐Neopentylglycine)oxytocin and (8‐Cycloleucine)oxytocin.
Authors: HLAVACEK J. , POSPISEK J. , SLANINOVA J. , CHAN W. Y. , HRUBY V. J.
Published: May 2016

The title compounds (Ia) and (Ib) are prepared by a combination of solid‐phase synthesis and fragment condensation.
ChemInform Abstract: One‐Electron Reduction as a Method of Activation of Aromatic Compounds in Reactions with Electrophiles and Free Radicals
Authors: BIL'KIS I. I. , SHTEINGARTS V. D.
Published: May 2016

Review: (68 refs.
ChemInform Abstract: 129I Moessbauer Study of Actinide Iodides.
Authors: KARRAKER D. G.
Published: May 2016

ThI4, UI4, NpI3, and PuI3 have been prepared by reacting the actinide metals with a 20% excess of Hg129I2 at 350‐400 °C and their Moessbauer spectra are recorded at temp. in the range 7‐15 K. Isomer shifts, quadrupole coupling constants and asymmetry parameters are given for all compounds.
ChemInform Abstract: Preparation of Perovskite Type Combustion Catalyst with Large Surface Area by Submicron Grinding.
Authors: TANAKA K. , NISHIDA T. , IMAMURA S.
Published: May 2016

The surface area of a Co/Sm perovskite‐type oxide catalyst can be increased from 3.1 to 30.3 m2/g by submicron grinding.
ChemInform Abstract: Physico‐Chemical Investigation of Compounds Prepared from the Oxides of Zinc, Titanium and the Rare Earth Elements.
Authors: GODZHIEVA O. V. , POROTNIKOV N. V. , PETROV K. I.
Published: May 2016

The novel title compounds, i.e. the ternary oxides M2TiZnO6 (M: Pr to Er, Y) are prepared by heating mixtures of ZnO, M2O3 and TiO2 at 1250‐1350 °C for 100‐300 h. The dielectric title compounds have perovskite structure, as revealed by X‐ray data.
ChemInform Abstract: Synthesis, Crystal and Molecular Structure of Hexabromotechnetium(IV) Acid.
Authors: KRYUCHKOV S. V. , GRIGOR'EV M. S. , KUZINA A. F. , SPITSYN V. I.
Published: May 2016

The title compound, which has the brutto formula (H3O)2(TcBr6), is obtained as a by‐product in the synthesis of polynuclear bromide clusters of technetium.
ChemInform Abstract: Discovery of a New, Metallic (but Not Superconducting) Compound in the La‐Sr‐Cu‐O System: La5SrCu6O15.
Authors: TOKURA Y. , TORRANCE J. B. , NAZZAL A. I. , HUANG T. C. , ORTIZ C.
Published: May 2016

The title compound has been prepared by heating a stoichiometric mixture of La2O3, SrCO3, and CuO in an oxygen stream at 900 °C for 6 h, followed by 3 cycles of regrinding, firing in flowing oxygen at 1025 °C (16 h), and cooling slowly to room temp. (over 6 h).
ChemInform Abstract: A Simple Model for the Kinetics of Dissociative Electron Transfer in Polar Solvents. Application to the Homogeneous and Heterogeneous Reduction of Alkyl Halides.
Authors: SAVEANT J.‐M.
Published: May 2016

The model developed on the basis of a Morse curve description of the potential energy surfaces for bond breaking shows a satisfactory agreement between the experimental data and the predictions of the theory for the two reaction types studied: R‐X + e‐ → R· + X‐ (electrochemical) and R‐X + A·‐ → R· + X‐ + A (homogeneous; A being an organic molecule such as benzo‐, naphtho‐, phthalonitrile, anthracene, phenanthridine etc.).
ChemInform Abstract: Reaction of Disubstituted Aromatic Compounds with Styrene.
Authors: GRUSHIN A. I. , GRIGOR'EV V. V. , PROKOF'EV K. V. , KOZLOVA N. M.
Published: May 2016

The Friedel‐Crafts reaction between styrene (I) and the benzene derivatives (II) affords the 1‐aryl‐1‐phenylethanes (IIIa)‐(IIIb).
ChemInform Abstract: A New Method for Preparation of Organocalcium Halides by Cocondensation of Calcium Vapor with Solvents.
Authors: MOCHIDA K. , YAMANISHI T.
Published: May 2016

Activated calcium (II) is produced by cocondensation of the metal with solvents such as THF.
ChemInform Abstract: Chlorocarbonylation of Pentacyclo(6.3.0.02,6.03,10.05,9)‐undecane.
Authors: PETRENKO A. E. , ALEKSANDROV A. M. , SOROCHINSKII A. E. , KUKHAR' V. P.
Published: May 2016

The title compound (I) is converted to the 4‐methoxycarbonyl derivative (IV).
ChemInform Abstract: Reverse Halogenation Using Supported Copper(I) Iodide.
Authors: CLARK J. H. , JONES C. W.
Published: May 2016

Copper(I) iodide, supported on alumina or active charcoal, is used as a reagent for selective aryl iodination.
ChemInform Abstract: Oxidation of the α‐Ketol and Enone Derivatives of Cyclohexanone by Tetrazolium Salts.
Authors: JASICZAK J.
Published: May 2016

2‐Hydroxycyclohexanone (I) is oxidized with tetrazolium salts to give 1,2‐cyclohexanedione (II) which is converted to the dioxime (III).
ChemInform Abstract: Synthesis of δ2‐Isoxazolines Containing Indole Fragments.
Authors: SHVEKHGEIMER G. A. , KELAREV V. I. , SHVEDOV V. I. , DYANKOV L. A.
Published: May 2016

Benzonitrile oxides, prepared in situ from the hydroxamic acid chlorides (I), react with the dipolarophiles (II) to give the indolylisoxazolines (III).
ChemInform Abstract: Synthesis of Linearly Fused 2,8‐Dialkyl‐4,6‐dioxo‐4H,6H‐benzo(1,2‐b:5,4‐b′)dipyrans.
Authors: REDDY K. C. , SRIMANNARAYANA G.
Published: May 2016

The title compounds (III) are synthesized as shown (yields given in mg).
ChemInform Abstract: Synthesis of 4‐(β‐Iodoethyl)‐7‐isopropyl‐8‐methoxyisochroman‐3‐one.
Authors: MALLAIAH M. , BHAWAL B. M.
Published: May 2016

The title compound (VIII) can be synthesized in overall good yield starting from the alcohol (I).
ChemInform Abstract: Nitrile Sulfides. Part 7. Synthesis of (1)Benzopyrano(4,3‐c)isothiazoles and Isothiazolo(4,3‐c)quinolines.
Authors: BROWNSORT P. A. , PATON R. M.
Published: May 2016

The nitrile sulfides (III), generated from (I), react with (II) and (V) to yield the products (IV) and (VI) arising from 1,3‐dipolar cycloaddition.
ChemInform Abstract: Synthesis of 2′,3′‐Dihydrospiro(benzofuran‐2(3H),4′(1′H)isoquinoline)s. A Novel Heterocyclic Ring System.
Authors: KLEIN J. T. , DAVIS L. , EFFLAND R. C.
Published: May 2016

The 4‐oxotetrahydroisoquinolinecarboxylic acid esters (I) are hydrolyzed and decarboxylated to give the isoquinolones (II) which react with the benzyl chlorides (III) in the presence of Mg to yield the carbinols (IV).
ChemInform Abstract: Synthesis and Spectra of Some Triazolo and Triazinophthalazines of Possible Hypotensive Activity.
Authors: ALLAH H. M. F. , SOLIMAN R.
Published: May 2016

1‐Hydrazinophthalazine (I) is cyclized via the hydrazides (III) to give the triazolophthalazines (IV).
ChemInform Abstract: The Rearrangement of a Tetrahydrobiphenylene Derivative to a Bridged Benzocycloheptene.
Authors: BARTON J. W. , HOWARD J. A. K. , SHEPHERD M. K. , STRINGER A. M.
Published: May 2016

Alkaline hydrolysis of the adduct (I), obtained from benzocyclobutene and 2H‐pyran‐2‐one, gives the acid (II).
ChemInform Abstract: Novel Approach to Ketene Aminals. Addition Reaction of β‐Diketones and β‐Keto Esters with Monosubstituted Cyanamides Catalyzed by Nickel Acetylacetonate.
Authors: DOROKHOV V. A. , GORDEEV M. F. , DEM'YANETS Z. K. , BOGDANOV V. S.
Published: May 2016

Coupling of the β‐dicarbonyl compounds (I) with the cyanamides (II) gives the diaminomethylene‐β‐dicarbonyl derivatives (III).
ChemInform Abstract: Derivatives of 1‐Phenyl‐1,3‐dihydro‐2λ5‐benzophospholic Acid.
Authors: FLUCK E. , RIEDEL R.
Published: May 2016

Starting with the isophosphindoline (Ia), the derivatives (Ib) ‐ (Id) are prepared by nucleophilic displacement of the hydroxy group.
ChemInform Abstract: Stereospecific Addition of Mercuric Acetate to Strained Norbornene Systems.
Authors: SINGH A. K. , SRIVASTAVA S. K.
Published: May 2016

The compounds (IV) are obtained from the corresponding norbornenes (I) by oxymercuration in methanol (III).
ChemInform Abstract: Organometallic Coordination Chemistry of Aluminum. Synthesis and Molecular Structure of (Al(CH3))2(C8H20N6)(Al(CH3)2)2: A Novel Example of a Neutral Organoaluminum Complex Containing Two Five‐Coordinate Aluminum Atoms in Square Pyramidal Environments.
Authors: ROBINSON G. H. , SANGOKOYA S. A.
Published: May 2016

The reaction of the triamine (I) with an excess of AlMe3 (II) yields a quantitative amount of the title complex (III).
ChemInform Abstract: Synthesis of a Heterobimetallic Dihydride by the Addition of a Rhenium Dihydride to a Platinum(0) Complex.
Authors: CASEY C. P. , RUTTER E. W. JUN. , HALLER K. J.
Published: May 2016

The Re complex (I) reacts with the Ir complex (II) to produce the derivatives (III) and (IV).
ChemInform Abstract: 1,1′‐Polymethylenebiscarbocyanines of the Indoline and Quinoline Series with Two Symmetrical Non‐Conjugated Chromophores.
Authors: MUSHKALO I. L. , SOGULYAEV YU. A.
Published: May 2016

The bis‐indocarbocyanine dyes (III) and the bis‐quino(4)‐carbocyanine dyes (VI) are prepared.
ChemInform Abstract: Simple Synthesis of Cordiachrome B, (IX), a Terpenoid Benzoquinone from Cordia millenii.
Authors: WATABE T. , HOSODA Y. , OKADA K. , ODA M.
Published: May 2016

The Diels‐Alder reaction of the thermolytic intermediate (II) with the cyclohexenone (V) is the key step in the synthesis.
ChemInform Abstract: Synthesis and Structural Studies of Remirol.
Authors: YAMAGUCHI S. , TAKAI M. , HANAZOME I. , OKADA Y. , KAWASE Y.
Published: May 2016

Cyclization of the Na salt of (I) with (II) in cold MeOH yields not only (III), as reported previously, but also (IV).
ChemInform Abstract: Synthesis of Condensed Tannins. Part 20. Cycloconformations and Conformational Stability Among Derivatives of “Angular” Tetraflavanoid Profisetinidins.
Authors: BRANDT E. V. , YOUNG D. A. , FERREIRA D. , ROUX D. G.
Published: May 2016

Conformational analysis of tridecamethyl ether tetraacetates of two natural (e.g.
ChemInform Abstract: Vitamin D and Related Compounds. Part 31. Photochemistry of Estra‐5,7‐dien e‐3β,17β‐diol 17‐Acetate and Its 9,10‐seco Isomer, 10‐Demethyl Analogues of Pro‐ and Previtamin D. Part 1. “Reversible” Isomerization Reactions.
Authors: KOOLSTRA R. B. , CORNELISSE J. , JACOBS H. J. C.
Published: May 2016

Irradiation of the monoacetate (I) leads to isomerization, including conrotatory ring opening to give (II)‐(IV) or disrotatory ring closure to stereoselectively yield the new bicyclohexene (V) which reconverts thermally into (I) even at 20 °C. After prolonged irradiation the formation of a further product (VI) is discovered.
ChemInform Abstract: Influence of Copper on the Transformation of Ferrihydrite, 5 Fe2O3·9 H2O (I), into Crystalline Products in Alkaline Media.
Authors: CORNELL R. M. , GIOVANOLI R.
Published: May 2016

In alkaline media, (I) slowly transforms into goethite, α‐FeO(OH) (II), and haematite, α‐Fe2O3 (III).
ChemInform Abstract: A New Superconductive (Ln)Ba2Cu3O6.85 “Cocktail” Phase (Ln: Y, Nd, Sm, Eu and Yb).
Authors: MILLET P. , ENJALBERT R. , GALY J. , FAULMANN C. , CASSOUX P. , RAKOTO H. , ASKENAZY S.
Published: May 2016

The new high temp. superconductor Y0.2Nd0.2Sm0.2Eu0.2Yb0.2Ba2Cu3O6.85 is prepared by annealing mixtures of the corresponding oxides and BaCO3 in air (950 °C, 12 h).
ChemInform Abstract: Synthesis and Crystal Structure of (NH4)3(RhCl6)·H2O, the Product of the Reaction Between Rhodium Chloride and L‐Asparagine.
Authors: BUKANOVA A. E. , SERGIENKO V. S. , SIDOROVA T. P. , BELAN V. N. , SHUBOCHKIN L. K. , PORAI‐KOSHITS M. A.
Published: May 2016

The title compound is prepared in 52% yield from RhCl3·4 H2O and L‐asparagine in 10% HCl solution.
ChemInform Abstract: Reactions of Unsaturated Compounds. Part 135. Addition of Acetylacetone and Acetoacetic Ester to Enyne Hydrocarbons in the Presence of Mercury Acetate.
Authors: DAVTYAN S. ZH. , PANOSYAN G. A. , KINOYAN F. S. , BADANYAN SH. O.
Published: May 2016

In the presence of Hg(OAc)2 the enynes (I) undergo chemoselective and regiospecific reactions with sodium acetylacetonate (II) to afford the 1,3‐diketones (III) in high yields after demercuration.
ChemInform Abstract: 3,3,6,6‐Tetramethylcyclohexyne.
Authors: SANDER W. , CHAPMAN O. L.
Published: May 2016

Best yields of the title compound (II) are obtained at 370 °C/10‐6 torr and trapping in argon at 12 K. At higher pressure or on warming trapped (II) to over 45 K, the dimer (III) is formed accompanied by some CH2=CH2 and butatriene (IV).
ChemInform Abstract: The Reaction of 1,1‐Dimethoxyethylene with Bridgehead Enones. A Direct Approach to the Taxane Skeleton.
Authors: KRAUS G. A. , THOMAS P. J. , HON Y. S.
Published: May 2016

The bicyclic enones, generated from the bromobicyclo(3.3.1)nonanones (I), react with ketene dimethyl acetal (II) to produce the cycloadducts (III).
ChemInform Abstract: The Aza‐di‐π‐methane Rearrangement of O‐Acetyl 2,2‐Dimethyl‐4,4‐diphenylbut‐3‐enal Oxime.
Authors: ARMESTO D. , HORSPOOL W. M. , LANGA F.
Published: May 2016

Photolysis of the butenal oxime acetate (I) results in cyclization, forming the cyclopropanes (II) and (III).
ChemInform Abstract: Cycloaddition of Dihaloketenes with Trimethylsiloxycycloolefins and Fluorination of the Products.
Authors: HABIBI M. H. , SAIDI K. , SAMS L. C.
Published: May 2016

Dihaloketenes, generated in situ by dehalogenation of the acetyl chlorides (I) with activated zinc, react with the silylated cycloolefins (II) to give the cycloadducts (III).
ChemInform Abstract: 1,2‐Derivatives of Acenaphthene. Part 6. Synthesis and Properties of 4‐, 3,5‐, 5,6‐ and 3,5,6‐Bromo Derivatives of Acenaphthene‐1,2‐diol.
Authors: ANIKIN V. F. , LEVANDOVSKAYA T. I. , GIL'EN KH. , IVANOV E. I.
Published: May 2016

The title compounds (VI) are prepared as shown.
ChemInform Abstract: H2‐Antihistaminics. Part 37. H2‐Antagonistic Activity of Impromidine Analogous Cyanoguanidines.
Authors: ELZ S. , SCHUNACK W.
Published: May 2016

Reaction of the aminoalkyl imidazolylmethyl sulfides (I) with the imidocarbonate (II) yields the isoureas (III).
ChemInform Abstract: A New Facile Diastereoconversion of 2‐Amino Alcohols Involving a Novel Cyclocarbamation.
Authors: KANO S. , YOKOMATSU T. , IWASAWA H. , SHIBUYA S.
Published: May 2016

The N‐protected amino acids (I) are converted to the N‐methoxy amides (III) which react with the organometallic compounds (IV) to form the α‐amino ketones (V).
ChemInform Abstract: Liquid‐Crystalline Imidazo(2,1‐b)‐1,3,4‐thiadiazoles. Part 1. Synthesis, Mesomorphic and Spectral Characteristics of 2,6‐Disubstituted Imidazo(2,1‐b)‐1,3,4‐thiadiazoles.
Authors: TORGOVA S. I. , ABOLIN A. G. , KARAMYSHEVA L. A. , IVASHCHENKO A. V.
Published: May 2016

The novel title compounds (V) form smectic mesophases over a wide range of temperature.
ChemInform Abstract: Substituted 1,3,4‐Thiadiazoles with Anticonvulsant Activity. Part 4. Amidines.
Authors: CHAPLEO C. B. , MYERS P. L. , SMITH A. C. B. , STILLINGS M. R. , TULLOCH I. F. , WALTER D. S.
Published: May 2016

The thiadiazolylamidines (V) are obtained by reaction of the thiadiazolylamines (I) with the imidate hydrochlorides (II) followed by aminolysis of the crude imidates (III).
ChemInform Abstract: Synthesis, Binding Studies, and Structure‐Activity Relationships of 1‐Aryl‐ and 2‐Aryl(1)benzopyranopyrazol‐4‐ones, Central Benzodiazepine Receptor Ligands.
Authors: COLOTTA V. , CECCHI L. , FILACCHIONI G. , MELANI F. , PALAZZINO G. , MARTINI C. , GIANNACCINI G. , LUCACCHINI A.
Published: May 2016

The arylhydrazones (III), derived from the acetylhydroxycoumarin (I), are cyclized with p‐toluenesulfonic acid in refluxing xylene to give the benzopyranopyrazoles (IV).
ChemInform Abstract: 2,4‐Diamino‐5‐benzylpyrimidines and Analogues as Antibacterial Agents. Part 9. Lipophilic Trimethoprim Analogues as Antigonococcal Agents.
Authors: ROTH B. , BACCANARI D. P. , SIGEL C. W. , HUBBELL J. P. , EADDY J. , KAO J. C. , GRACE M. E. , RAUCKMAN B. S.
Published: May 2016

Analogues of the antigonococcal agent trimethoprim (VII) are prepared by coupling uracil (I) with amines such as (II) followed by conversion of the dichloride (IV) and amination, yielding the diamine (VI).
ChemInform Abstract: A Novel Class of Potential Central Nervous System Agents. 3‐Phenyl‐2‐(1‐piperazinyl)‐5H‐1‐benzazepines.
Authors: HINO K. , NAGAI Y. , UNO H. , MASUDA Y. , OKA M. , KARASAWA T.
Published: May 2016

The benzazepines (I), prepared by ring expansion of the corresponding fused cyclohexanone oximes, are converted to the dichlorides (II) and then coupled with the amines (III) to give the piperazinyl derivatives (IV).
ChemInform Abstract: 1,1‐Bis(trimethylsiloxy)‐1,3‐butadiene and 4‐Trimethylsilyl‐2‐butenoate Trimethylsilyl Ester: Preparations and Reactions with Benzaldehyde.
Authors: BELLASSOUED M. , ENNIGROU R. , GAUDEMAR M.
Published: May 2016

The silyl crotonate (III) is deprotonated and coupled with chlorotrimethylsilane (II) in the presence of various lithium amides (I) to produce the ketene disilyl acetal (IV).
ChemInform Abstract: Thiophosphorosulfenyl Bromides and Iodides. Synthesis and Characterization.
Authors: KATO S. , MIN S. , BENIYA Y. , ISHIDA M.
Published: May 2016

The diphenyltin bis(dithiophosphates) (I) react with N‐bromo‐ or N‐iodosuccinimide to give the thiophosphorosulfenyl halides (II) or (III).
ChemInform Abstract: The Crystal Structures of Ph3PNPh, (Ph3PN(H)Ph) (AuI2) and of 2,3‐Bis(triphenylphosphoranimino)maleic Acid‐N‐methylimide.
Authors: BOEHM E. + , DEHNICKE K. , BECK J. , HILLER W. , STRAEHLE J. + , MAURER A. , FENSKE D.
Published: May 2016

The structures of the title compounds (I)‐(III) are confirmed by X‐ray analysis (space groups P21/c, P1 and P1 with Z=4, 2 and 2, respectively).
ChemInform Abstract: Synthesis and Molecular Structure of O‐(1‐Chloroisobutylideneamino) Diphenylphosphinate.
Authors: MARTYNOV I. V. , CHEKHLOV A. N. , IVANOV A. N. , EPISHINA T. A. , MAKHAEV V. D. , SOKOLOV V. B.
Published: May 2016

The phosphinate (III) is prepared from diphenylphosphine (I) and the dichloronitrosoisobutane (II).
ChemInform Abstract: Interactions of Dichloro‐bis(η5‐cyclopentadienyl)titanium(IV) with Nucleosides.
Authors: PNEUMATIKAKIS G. , YANNOPOULOS A. , MARKOPOULOS J.
Published: May 2016

The 1:1 molar reaction of the title complex (I) with the nucleosides HL (II) in MeOH leads to the formation of the isolable dicationic products (III).
ChemInform Abstract: Organoboration of Alkynylstannanes. Part 22. Exchange Reaction between a cis‐Dimethyl(chloro)stannyldiethylborylalkene and Organyltrimethylstannanes.
Authors: KERSCHL S. , WRACKMEYER B.
Published: May 2016

The chlorostannylbutene (I) mentioned in the title reacts with the organolithium compounds (II) to give the corresponding substituted stannanes (III).
ChemInform Abstract: Synthesis of 2‐ and 3‐Fluorotyrosine with Dilute Fluorine Gas.
Authors: CHIRAKAL R. , BROWN K. L. , FIRNAU G. , GARNETT E. S. , HUGHES D. W. , SAYER B. G. , SMITH R. W.
Published: May 2016

Fluorination of L‐tyrosine (I) results in the formation of 3‐fluoro‐L‐tyrosine (II), while fluorination of the diacetylated ester (III) yields a mixture of (II) and 2‐fluoro‐L‐tyrosine (IV) after hydrolysis.
ChemInform Abstract: The Enzymatic Conversion of Exomethylene Cephalosporin C into Deacetyl Cephalosporin C and the Role of Molecular Oxygen in Cephalosporin C Biosynthesis.
Authors: BALDWIN J. E. , ADLINGTON R. M. , CROUCH N. P. , SCHOFIELD C. J.
Published: May 2016

Cell free extracts from Cephalosporium acremonium containing deacetoxy/deacetyl cephalosporin C synthetase activities are shown to convert exomethylene cephalosporin C (I) directly to deacetyl cephalosporin C (II), a precursor in the cephalosporin C (III) biosynthesis.
ChemInform Abstract: Effective Synthesis of the Chiral Components of the Sex Pheromone of the Codlin Moths Adoxophyes.
Authors: CHESKIS B. A. , MOISEENKOV A. M.
Published: May 2016

Starting from (R)‐(I) or (S)‐(III), the enantiomers of (VII) are obtained in optically pure form.
ChemInform Abstract: Hydrogen Separation Using LaNi5 Films Deposited on Polymer Membranes.
Authors: SAKAGUCHI H. , ADACHI G. , SHIOKAWA J.
Published: May 2016

LaNi5 films are deposited (r.f.
ChemInform Abstract: Addition Reactions of Dithioacids with Unsaturated Compounds
Authors: DROZD V. N. , PETROV M. L. , KUZ'MINA N. YA. , VYAZGIN A. S.
Published: May 2016

Review: (126 refs.
ChemInform Abstract: Impedance and Admittance Measurements at Intercalated n‐HfS2/Nonaqueous Electrolyte Interface
Authors: SEMKOW K. W. , PUJARE N. U. , SAMMELLS A. F.
Published: May 2016

(MeCN‐based).
ChemInform Abstract: Surface Modifications with Heteropoly and Isopoly Oxometalates. Part 1. Qualitative Aspects of the Activation of Electrode Surfaces Towards the Hydrogen Evolution Reaction.
Authors: KEITA B. , NADJO L.
Published: May 2016

The surfaces of various electrodes (Au, W, Hg, Pt, glassy carbon, graphite) are electrochemically modified using solutions of K6P2W17MoO62, K6P2W18O62, H3PW12O40, H4SiW12O40, H3PMo12O40, (NH4)6H2W12O40, or H2WO4.
ChemInform Abstract: Effect of Borate on the Passivation of Nickel in Cl‐‐Containing Solutions.
Authors: MACDOUGALL B. , BARDWELL J. A. , GRAHAM M. J.
Published: May 2016

The anodic passivation of Ni in sulfate solution is hindered in the presence of Cl‐.
ChemInform Abstract: Synthesis of Some 3‐Substituted 4(3H)‐Quinazolinone and 4(3H)‐Quinazolinethione Derivatives and Related Fused Biheterocyclic Ring Systems.
Authors: ABDEL‐MEGEED M. F. , TENIOU A.
Published: May 2016

The reaction of the quinazolones (Ia), (Ib) or thiones (Ic), (Id) with phenylisocyanate or ‐isothiocyanate (II) yields the compounds (III) or (IV); the compounds (VIII) are prepared from the benzoxazinone (V) or benzothiazinethione (VII) with semicarbazide (VIa) or thiosemicarbazide (VIb).