bluuebunny/crossref_metadata_2025_split huggingface dataset:
ChemInform Abstract: A Facile One‐Step Synthesis of Novel Polysubstituted Pyridines via the Tandem‐Addition Rearrangement Hetaryne Reaction.
Authors: KHANAPURE S. P. , BIEHL E. R. 
Published: May 2016

Abstract2,6‐Dimethoxypyridine (I) is lithiated and then coupled with chloromethyl methyl ether (II) to give 2,6‐dimethoxy‐3‐(methoxymethyl)pyridine (III) which is brominated with N‐bromosuccinimide, forming the 3‐bromopyridine (IV).
ChemInform Abstract: Base‐Induced Condensation of Phenols Joined by Amides to Ketones: A Synthesis of Hydroxylated Isoquinolinones and Derivatives.
Authors: FRIARY R. , SCHWERDT J. H. , SEIDL V. , TOPLISS J. G. 
Published: May 2016

AbstractHydrolysis of the benzamides (I) with potassium carbonate and subsequent treatment with acetic anhydride (II) result in cyclization and acetylation to produce the isoquinolinones (III).
ChemInform Abstract: Stereoselective Reduction of t‐Butyldimethylsiloxy Group of Ethyl 2‐Trichloromethyl‐4‐t‐butyldimethylsiloxy‐1,3‐dioxan‐4‐acetates.
Authors: HOMMA K. , MUKAIYAMA T. 
Published: May 2016

AbstractReduction of the isomeric siloxydioxaneacetates (I) or (IV) with triethylsilane results in the stereoselective formation of the cis‐isomers of (II).
ChemInform Abstract: Convenient Synthesis of 1,3‐Diaryl‐1,2,3,4‐tetrahydro‐5,7,7‐trimethyl‐4‐oxo‐2‐thioxo‐7H‐pyrano(2,3‐d)pyrimidines.
Authors: AHLUWALIA V. K. , KUMAR R. , KHURANA A. , BHATLA R. 
Published: May 2016

AbstractThe question whether the species (III) or the isomeric species (VIII) is formed when the thiobarbituric acids (I) react with acetone/Et3N or mesityl oxide (II) is clarified by independent synthesis of (III) from (I) via the intermediates (V).
ChemInform Abstract: Synthesis and Biological Activity of Tricyclic Analogues of Oxolinic Acid.
Authors: GLUSHKOV R. G. , DRONOVA L. N. , ELINA A. S. , POROKHOVAYA M. V. , PADEISKAYA E. N. , RADKEVICH T. P. , SHIPILOVA L. D. 
Published: May 2016

AbstractThe fused oxoquinolinecarboxylic acids and amides (III), (V), (VI), and (VIII) are prepared by common cyclization reactions.
ChemInform Abstract: Synthesis, Structure, and Ring‐Opening Polymerization of Strained Macrocyclic Biaryls: A New Route to High‐Performance Materials.
Authors: COLQUHOUN H. M. , DUDMAN C. C. , THOMAS M. , O'MAHONEY C. A. , WILLIAMS D. J. 
Published: May 2016

AbstractReductive cyclization of the dichloro compound (I) in the presence of tetrakis(triphenylphosphine)nickel, generated in situ, leads to the formation of the macrocyclic biaryl (II).
ChemInform Abstract: Synthesis and Structure of a 1λ5,4λ5‐Diphosphapentalene.
Authors: SILBERZAHN J. , PRITZKOW H. , LATSCHA H. P. 
Published: May 2016

AbstractThe stable diphosphapentalene (III) (space group P21/n, Z=2) synthesized as shown is characterized by X‐ray structure analysis and MS data.
ChemInform Abstract: Ethyl Complexes of Zirconocene.
Authors: ALT H. G. , DENNER C. E. 
Published: May 2016

AbstractThe ethylene complex (I) reacts readily with a variety of substrates (R1OH (II), tBuSH, H2O (V), R2COOH (VII)) to give the ethyl complexes (III), (IV), (VI), and (VIII).
ChemInform Abstract: A Paramagnetic μ‐Methylene Complex with a Short Cr(III)‐Cr(III) Bond.
Authors: NOH S. K. , HEINTZ R. A. , JANIAK C. , SENDLINGER S. C. , THEOPOLD K. H. 
Published: May 2016

AbstractThe title complex (II) is obtained by decomposition of the electron‐poor compound (I) in solution and characterized by an X‐ray structure determination (P21/c, Z=4).
ChemInform Abstract: Transition‐Metal Complexes of P‐Rich Phosphanes and Silylphosphanes. Part 1. Transition‐Metal Complexes of Heptaphosphanortricyclanes R3P7 (R: Et, iPr).
Authors: FRITZ G. , SCHNEIDER H.‐W. , HOENLE W. + , VON SCHNERING H. G. 
Published: May 2016

AbstractReactions of the title compounds (I) with Cr(CO)5(THF) (II) in different molar ratios are investigated.
ChemInform Abstract: Silver(I) and Copper(I) Complexes of 1,6‐Cyclodecadiyne and 1,7‐Cyclododecadiyne.
Authors: GLEITER R. , KARCHER M. , KRATZ D. , ZIEGLER M. L. , NUBER B. 
Published: May 2016

AbstractThe reactions of the cycloalkynes (I) with Ag(I)‐ and Cu(I)‐triflate yield colorless polymeric 1:1 adducts in 80‐92% yield.
ChemInform Abstract: Polynuclear Metal Complexes with Bridging Carbene or Carbyne Ligands. Part 98. Tri‐ and Tetranuclear Metal Compounds with Ethylidyne or p‐Tolylmethylidyne Groups, and Having Both Cyclopentadienyl and Carbaborane Ligands.
Authors: GIMENO M. C. , STONE F. G. A. 
Published: May 2016

AbstractThe trimetal compounds (V) (yields 70‐86%) are prepared by treating the complexes (III) with carbyne‐W complexes of the type (IV) containing a carbaborane ligand as shown for the example (Va).
ChemInform Abstract: Formation of Optically Pure N‐Acyl‐N,N′‐dicyclohexylurea in N,N′‐Dicyclohexylcarbodiimide‐Mediated Peptide Synthesis.
Authors: SLEBIODA M. , WODECKI Z. , KOLODZIEJCZYK A. M. 
Published: May 2016

AbstractThe addition reaction of the optically pure N‐protected α‐amino acids (I) with DCC (II) yields the optically pure N‐acylureas (III).
ChemInform Abstract: A New Synthetic Route to Ubiquinones.
Authors: RUETTIMANN A. + , LORENZ P. 
Published: May 2016

AbstractThe ubiquinones (VIII) are prepared employing a new strategy: as key step, the Diels‐Alder reaction of trichloroethene (I) and the furan (II) is used for the construction of the quinone part, which after methanolysis and further reaction with cyclopentadiene (III) yields the adduct (IV).
ChemInform Abstract: Synthetic and Mechanistic Studies on Esperamicin A1 and Calicheamicin γ1. Molecular Strain Rather Than π‐Bond Proximity Determines the Cycloaromatization Rates of Bicyclo(7.3.1) Enediynes.
Authors: MAGNUS P. , FORTT S. , PITTERNA T. , SNYDER J. P. 
Published: May 2016

AbstractIn connection with mechanistic studies concerning the DNA cleaving properties of the antitumor antibiotics esperamicin and calicheamicin γ1, kinetic parameters and thermodynamic data of the cycloaromatization of bicyclic enediynes are evaluated and discussed.
ChemInform Abstract: Structure and Synthesis of (.+‐.)‐Caudoxirene, a New Spermatozoid‐Releasing and ‐Attracting Pheromone from the Marine Brown Alga Perithalia caudata (Phaeophyceae, Sporochnales). Part 5.
Authors: WIRTH D. , BOLAND W. 
Published: May 2016

AbstractThe synthesis of the title compound (IV) is described using the diastereoselective alkylation of the aldehyde derived from the alcohol (I) with the titanium reagent (II) as key step.
ChemInform Abstract: Rh2Sb with (anti‐)PbCl2‐Type Structure.
Authors: JEITSCHKO W. , ALTMEYER R. O. 
Published: May 2016

AbstractSingle crystals of the title compound are grown by annealing the elemental components in a NaCl/KCl flux (Rh:Sb:NaCl:KCl = 2.5:1.2:15:15; 800 °C, 5 weeks).
ChemInform Abstract: Additional In‐Depth Information Obtainable from the Energy Loss Features of Photoelectron Peaks: The Oxidation and Reduction of an Fe/Cr Alloy in Oxygen at Low Partial Pressures and Ultra High Vacuum.
Authors: CASTLE J. E. , KE R. , WATTS J. F. 
Published: May 2016

AbstractIt is demonstrated that the energy loss features within the XPS spectra, which have generally been regarded as a nuisance, can be used to obtain useful secondary information.
ChemInform Abstract: Characterization of Photochemically or Electrochemically Reduced Blue Titanium Dioxide.
Authors: MUELLER R. P. + , STEINLE J. , BOEHM H. P. 
Published: May 2016

AbstractIt is shown that the blue color of TiO2 (anatase or rutil), observed after reduction by UV irradiation in the presence of suitable hole scavengers (e.g.
ChemInform Abstract: Potentiodynamic Studies of Modified 9Cr‐1Mo Ferritic Steel in Sulfuric Acid and Seawater.
Authors: MODI O. P. , MUNGOLE M. N. , SINGH K. P. 
Published: May 2016

AbstractThe corrosion behavior of annealed and cold‐worked 9Cr‐1Mo ferritic steel modified with 0.198 wt.% V and 0.072 wt.% Nb is studied in 0.1‐5 N H2SO4 at 25 °C. The electrochemical parameters such as the critical current density, passivation current density, corrosion current density, and the passivation potential decrease with increasing H2SO4 concentration, while the corrosion potential increases.
ChemInform Abstract: Toward Molecular Charge‐Transfer Relays. A Three‐Dimensional Acceptor and Its Radical Anion.
Authors: MASLAK P. , AUGUSTINE M. P. , BURKEY J. D. 
Published: May 2016

AbstractInformation about the LUMO in the "three‐dimensional" acceptor molecule (III) is provided by the measurement of reduction potentials (cyclic voltammetry) of (III) (‐0.90 V) and the model ketones (II) (‐1.36 V) and (IV) (‐1.51 V), thus indicating a lowering of the LUMO in (III) by 0.31 eV in comparison to a hypothetical nonspiroconjugated model.
ChemInform Abstract: Metal Alkyl and Aryl Compounds. Part 44. Preparation and Structure of Methylsodium. Structure Determination Using NaCD3 Powders at 1.5 and 300 K by Neutron and Synchroton Radiation Diffraction.
Authors: WEISS E. , CORBELIN S. , COCKCROFT J. K. , FITCH A. N. 
Published: May 2016

AbstractThe title compound crystallizes as a new structure type in I222 with Z=16 showing elements of the MeLi and MeK structures.
ChemInform Abstract: Examinations in the Wittig System with Regard to an Ordering Concept of Alternative Principles.
Authors: BANDMANN H. , BARTIK T. , BAUCKLOH S. , BEHLER A. , BRILLE F. , HEIMBACH P. , LOUVEN J.‐W. , NDALUT P. , PREIS H.‐G. , ZEPPENFELD E. 
Published: May 2016

AbstractFundamental reflections are presented as to different effects on mechanistic pathways in chemical reactions.
ChemInform Abstract: The Production of Methacrylic Acid by the Vapor‐Phase Aldol Condensation of Propionic Acid with Formaldehyde.
Authors: AI M. 
Published: May 2016

AbstractWhereas CH2=CH‐COOH is obtained in high yields from CH3‐COOH + HCHO (II) over V2O5‐P2O5 catalysts (96‐98 mol%), the yield of (III) does not exceed 39 mol%.
ChemInform Abstract: Oxygen Scrambling and Stereochemistry During the Trifluoroethanolysis of Optically Active 2‐Butyl 4‐Bromobenzenesulfonate (I).
Authors: DIETZE P. E. , WOJCIECHOWSKI M. 
Published: May 2016

AbstractDuring the trifluoroethanolysis of (I), containing 18O in the nonbridging oxygens, scrambling of the oxygen label occurs.
ChemInform Abstract: Steric and Electronic Effects on the Conformations and Singlet Oxygen Ene Regiochemistries of Substituted Tetramethylethylenes. The Origin of the Geminal Effect.
Authors: CLENNAN E. L. , CHEN X. , KOOLA J. J. 
Published: May 2016

AbstractThe reactions of singlet oxygen with 22 allylically substituted tetramethylethylenes such as (I) are studied.
ChemInform Abstract: Intramolecular Diels‐Alder Reactions of Pyrazines with Alkynylphenyl Moieties as Side‐Chain Dienophiles.
Authors: HAIDER N. , VAN DER PLAS H. C. 
Published: May 2016

AbstractThe pyrazines (I), (IV) and (VII) react under neutral and acidic conditions to give tricyclic b‐ and c‐anellated pyridines.
ChemInform Abstract: Chemistry of Dicyclopropylcarbene and Related Intermediates in Dimethyl Sulfoxide.
Authors: FREEMAN P. K. , WUERCH S. E. , CLAPP G. E. 
Published: May 2016

AbstractThe ketones (I) are coupled with phenylsulfonylhydrazine (II) and subsequently treated with potassium hydride (III) to produce the salts (IV).
ChemInform Abstract: Photochemical Reactions. Part 152. Photochemistry of Acylsilanes: Photolysis and Thermolysis of Cyclopropyl Silyl Ketones.
Authors: SCHELLER M. E. , FREI B. 
Published: May 2016

AbstractThe photolysis of the title ketones (I), (VIII) or (XII) under π,π* excitation conditions yields the various compounds delineated in the scheme.
ChemInform Abstract: Radical Ion Probes. Part 1. Cyclopropylcarbinyl Rearrangements of Aryl Cyclopropyl Ketyl Anions.
Authors: TANKO J. M. , DRUMRIGHT R. E. 
Published: May 2016

AbstractAn established method is the use of intramolecular rearrangements for the experimental detection of electron‐transfer pathways in organic reactions in the case of free radicals.
ChemInform Abstract: 2‐(((p‐Nitrophenyl)sulfonyl)oxy)‐3‐keto Esters: Versatile Intermediates for the Preparation of 1,2,3‐Tricarbonyl Compounds.
Authors: HOFFMAN R. V. , KIM H.‐O. , WILSON A. L. 
Published: May 2016

AbstractReaction of the α‐nosyloxy β‐keto esters (I) with triethylamine generates the 1,2,3‐tricarbonyl derivatives (II) which are trapped with o‐phenylenediamine (III) to produce the quinoxalines (IV).
ChemInform Abstract: Reactions of Organic Anions. Part 173. Oxidative Cross‐Coupling of Enolates with Nitronate Anions Promoted by Chloride Anions.
Authors: WROBEL Z. , MAKOSZA M. 
Published: May 2016

AbstractTreatment of a mixture of the diethyl malonates (I) and the nitroalkenes (II) with NaOEt generates malonate and nitronate anions.
ChemInform Abstract: Multistep Electron Transfer in Palladium‐Catalyzed Aerobic Oxidations via a Metal Macrocycle‐Quinone System.
Authors: BAECKVALL J.‐E. + , HOPKINS R. B. , GRENNBERG H. , MADER M. M. , AWASTHI A. K. 
Published: May 2016

AbstractAn oxidizing triple catalytic system is developed successfully which consists of Pd(OAc)2 + benzoquinone + a metal macrocycle as the third component; the latter used to reoxidize hydroquinone (formed in the catalytic cycle) by molecular O2.
ChemInform Abstract: Dimethylethylamine‐Alane and N‐Methylpyrrolidine‐Alane. A Convenient Synthesis of Alane, a Useful Selective Reducing Agent in Organic Synthesis.
Authors: MARLETT E. M. , PARK W. S. 
Published: May 2016

AbstractReaction of the lithium aluminum hydride (II) with tertiary amines such as (I) forms the corresponding alane‐amine complexes (III), together with trilithium aluminum hexahydride (IV).
ChemInform Abstract: The Reaction of 2,4‐Dinitrofluorobenzene with Aniline, Cyclohexylamine, and 1,2‐Diaminocyclohexanes in Aprotic Solvents. A New Approach to the “Dimer Mechanism”.
Authors: NUDELMAN N. S. , MONTSERRAT J. M. 
Published: May 2016

AbstractIn toluene the title reaction with aniline shows third‐order dependence on the amine concentration.
ChemInform Abstract: Asymmetric Synthesis of 2‐, 3‐, and 4‐Methyloctanoic Acids.
Authors: SONNET P. E. , GAZZILLO J. 
Published: May 2016

AbstractThe regioisomeric chiral methyloctanoic acids (R)‐(VIII), (R)‐(XIV), and (R)‐(XVII) are prepared via optical resolution of the 2‐methylated carboxylic acids (±)‐(III).
ChemInform Abstract: Synthesis of Dithiocarbamates and Study of Their Radioprotective Activity.
Authors: STROGONOVA L. T. , BOL'SHAKOVA S. A. , TUZHILKOVA T. N. , AMOSOVA S. V. , IVANOVA N. I. , TARASOVA O. A. , AL'PERT M. L. 
Published: May 2016

AbstractThe dithiocarbamic acid salts (V), (VIII), or (XIII) and the esters (X) or (XI) are prepared as shown in the reaction scheme.
ChemInform Abstract: Synthesis and Reactions of β‐Silyloxyacylcyclopropanes. Trimethylsilyl Halide ‐ Zinc Halide Induced Cyclopropylcarbinyl Rearrangement.
Authors: MOISEENKOV A. M. , CZESKIS B. A. , IVANOVA N. M. , NEFEDOV O. M. 
Published: May 2016

AbstractThe α‐siloxyvinylcyclopropanes (I) are coupled with the aliphatic aldehydes (II) in the presence of zinc dichloride to produce the β‐siloxy ketones (III).
ChemInform Abstract: Synthesis and Structure of Isomeric syn‐ and anti‐2,4‐Diphenylhydrazones of 2‐Acetamido 5‐Substituted Benzophenones.
Authors: YAVORSKII A. S. , PAVLOVSKII V. I. , ANDRONATI S. A. , DVORKIN A. A. , GIFEISMAN T. SH. , SIMONOV YU. A. 
Published: May 2016

AbstractAcylation of the syn‐ and anti‐2,4‐dinitrophenylhydrazones (I) with bromoacetyl bromide (II) produces the title compounds (III) under retention of the configuration.
ChemInform Abstract: The Synthesis of Selectively Substituted p‐Diacetylcalix(4)arene.
Authors: NO K. , HONG M. 
Published: May 2016

AbstractAlkylation of calix(4)arene (I) with methyl iodide (II) in the presence of a base yields the dimethyl ether (III) which undergoes Friedel‐Crafts acylation with the acid chlorides (IV), forming the diketones (V).
ChemInform Abstract: The Effect of Metal Chelate Complexation on the Reactivity and Absorption Spectra of 1,2‐Naphthoquinones: New Types of Near‐IR‐Absorbing Metal Complex Dyes.
Authors: YOSHIDA K. , OGA N. , KOUJIRI T. , ISHIGURO M. , KUBO Y. 
Published: May 2016

AbstractThe already known reaction (desulfo substitution) of sulfonate (I) with prim. arylamines such as (II) is efficiently promoted by Ni(II) ions (less by Cu(II) and Co(II)) as is the reaction with the dialkylanilines (IV) to give (III) and (V), respectively.
ChemInform Abstract: Photocycloaddition of Cyclohex‐2‐enones to Tetramethoxyethylene: Formation of 2,2,3,3‐Tetramethoxy‐1‐oxaspiro(3,5)non‐5‐enes.
Authors: CRUCIANI G. , RATHJEN H.‐J. , MARGARETHA P. 
Published: May 2016

AbstractThe spiro compounds (IIIa), (IIId) or (VIa) are predominantly or exclusively formed in the title reaction of the cyclohexenones (I), (V) with tetramethoxyethylene (IIa).
ChemInform Abstract: A General Synthetic Route to 2,2′:5′,2′′‐Terpyrrole, 2,5‐Bis(2‐pyrryl)thiophene, and Alkyl‐Substituted Analogues.
Authors: MERRILL B. A. , LEGOFF E. 
Published: May 2016

AbstractThe thiazolium halide catalyzed reaction of the pyrrolecarboxaldehyde (I) with divinyl sulfone (II) produces the 1,4‐diketone (III).
ChemInform Abstract: An Unusual Fischer Indole Synthesis with 4‐Keto Acids: An Indole Incorporating the Terminal Hydrazine Nitrogen.
Authors: EICHEN CONN R. S. , DOUGLAS A. W. , KARADY S. , CORLEY E. G. , LOVELL A. V. , SHINKAI I. 
Published: May 2016

AbstractThe phenylbenzylhydrazine hydrochloride (III), prepared by reaction of the benzyl chloride (I) with phenylhydrazine hydrochloride (II), is coupled with the γ‐keto acids (IV) to give a mixture of the N‐benzylindoles (V), together with the indoles (VI).
ChemInform Abstract: Synthesis of a Series of 5‐Methyl‐1H‐imidazole‐4‐ylmethyl Sulfides.
Authors: KMONICEK V. , VEJDELEK Z. , PROTIVA M. 
Published: May 2016

AbstractAmong the title products prepared only (IIIa) and (Va) show some pharmacological activity in tests which are considered predictive of antidepressant action.
ChemInform Abstract: Synthesis of 2‐Azolylcycloalkanols.
Authors: MURABAYASHI A. , MAKISUMI Y. 
Published: May 2016

AbstractCycloalkanones such as (IV), prepared from the cycloalkene oxides (I), undergo coupling reaction with Grignard compounds, e.g. (V), to produce the corresponding alcohols, e.g. (VI) or (VII), with predominance of the cis‐isomers.
ChemInform Abstract: Synthesis of Key Carbazoles. Intermediates for Polymethoxyellipticines and Olivacines.
Authors: HALL R. J. , JACKSON A. H. , OLIVEIRA‐CAMPOS A. M. F. , QUEIROZ M.‐J. R. P. , SHANNON P. V. R. 
Published: May 2016

AbstractFormylation of the carbazole (I) with N‐methylformanilide (II) yields the aldehyde (III) which is coupled with aminoacetaldehyde diethyl acetal (IV) to produce the corresponding unstable Schiff base.
ChemInform Abstract: Regioselective Formation of Hydroxy Lactams from Pyridine‐2,3‐dicarboximides and Their Cyclodehydration to Pyrido(2′,3′:3,4)pyrrolo‐Fused Heterocyclic Systems.
Authors: HITCHINGS G. J. , VERNON J. M. 
Published: May 2016

AbstractOn NaBH4 reduction of the title compounds (I), predominantly the carbonyl group adjacent to the pyridine N‐atom is reduced; Grignard reaction of (I) yields exclusively the products (V).
ChemInform Abstract: Preparation of a New Chiral 5,6‐Dihydropyridinium Synthon.
Authors: DIEZ A. , HUANG P.‐Q. , GRIERSON D. S. , HUSSON H.‐P. , RUBIRALTA M. 
Published: May 2016

AbstractSilylation of (S)‐(‐)‐ethyl lactate (I) with the chlorosilane (II) and subsequent amination with ammonia (IV) yield the siloxypropanamide (V) which is converted into the N‐acetoxymethyl derivative (VIII) by consecutive reaction with formaldehyde (VI) and acetic anhydride (VII).
ChemInform Abstract: Hydrazino‐Bridged Annulenes. Part 7. Synthesis of Diethyl 6H‐9b,9c‐Diazacyclopenta(cd)phenalene‐5,7‐dicarboxylate.
Authors: FLITSCH W. , LEWINSKI U. , TEMME R. , WIBBELING B. 
Published: May 2016

AbstractVilsmeier reaction of the pyrrolopyridine (III) does not take place at the α position of the pyrrole moiety as expected and the aldehyde (V) is formed instead as an inseparable mixture of E/Z isomers.
ChemInform Abstract: Diethyl Pyrrolo(1,2‐b)cinnoline‐6,8‐dicarboxylate, a Product of an Anomalous Vilsmeier Reaction.
Authors: FLITSCH W. , LAUTERWEIN J. , LEIMKUEHLER M. + , LEAVER D. , LEWINSKI U. , MATTES R. , TEMME R. , WIBBELING B. 
Published: May 2016

AbstractThe title compound (III) is formed as a by‐product of the Vilsmeier reaction of the pyrrolopyridine (I) (cf.
ChemInform Abstract: Formation and Reactivity of Highly Stabilized Carbanions and Enolates by Pd‐Catalyzed Alkylation of Heterocyclic Compounds.
Authors: SAKAKIBARA T. , KUME T. , SHIMOHARA K. , FUJISHIMA H. , HARA S. , SHIMODA T. 
Published: May 2016

Abstract5‐Bromo‐3‐phenylisoxazole (I) undergoes coupling reaction with malononitrile (II) or the cyanoacetates (V) in the presence of sodium hydride and a Pd(II) catalyst to produce the salts (III) or (VI).
ChemInform Abstract: Pteridines. Part 94. Synthesis and Characteristics of 5,6‐Dihydro‐6‐(1,2,3‐trihydroxypropyl)pteridines: Covalent Intramolecular Adducts.
Authors: SOYKA R. , PFLEIDERER W. , PREWO R. 
Published: May 2016

AbstractCondensation of the triaminopyrimidine (II) with (Ia) or (Ib), followed by neutralization, yields the enantiomeric intramolecular adducts (+)‐(III) (space group P21) or (‐)‐(III), respectively.
ChemInform Abstract: Intramolecular 1,4‐Dipolar Cycloaddition: A New Approach to the Assembly of Ring‐Fused Heterocycles.
Authors: POTTS K. T. , DERY M. O. 
Published: May 2016

AbstractCoupling of the o‐hydroxyallyl(thio)benzamides (I) with the chlorocarbonyl ketenes (II) yields the betaines (III).
ChemInform Abstract: New Synthesis of Macrocyclic Dialkynyl Imines.
Authors: ITO Y. , INOUYE M. , YOKOTA H. , MURAKAMI M. 
Published: May 2016

AbstractThe isocyanide dichlorides (I) are coupled with bisalkynyltin compounds such as (II) to produce the corresponding macrocycles, e.g. (III), mentioned in the title.
ChemInform Abstract: Silaethenes. Part 14. Formation and Reactivity of 1,1‐Di‐tert.‐butoxy‐2‐neopentyl Silaethene (tBuO)2Si=CHNp.
Authors: GROBE J. , SCHROEDER H. + , AUNER N. 
Published: May 2016

AbstractThe reaction of (VII) (prepared in a total yield of 47%) with tBuLi is investigated in the non‐polar solvents pentane and toluene and mixtures of these with the polar THF, in order to gain information about the influence of the solvent on the reaction.
ChemInform Abstract: Products of the Reaction of Diethyl Chlorophosphite with Hippuric Acid Esters.
Authors: MALENKO D. M. , NESTEROVA L. I. , LUK'YANENKO S. N. , SINITSA A. D. 
Published: May 2016

AbstractThe hippuric acid esters (I) react with the chlorophosphite (II) to give mixtures of the O‐phosphorylation (III) and N‐phosphorylation products (IV).
ChemInform Abstract: Nucleophilic Addition of Phosphines to Carbonyl Groups. Isolation of 1‐Hydroxy Phosphonium and 1‐(Trimethylsiloxy) Phosphonium Salts and the Crystal Structure of (1‐Hydroxy‐1‐methylethyl)triethylphosphonium Bromide.
Authors: LEE S. W. , TROGLER W. C. 
Published: May 2016

AbstractThe α‐hydroxyalkylphosphonium salts (IV) are produced by coupling the carbonyl compounds (I) with the trialkylphosphines (II) in the presence of an anhydrous acid (III).
ChemInform Abstract: Prototropic Migrations in O,O‐Diethyl P‐(N′‐Arylbenzhydrazonoyl)‐N‐arylimidophosphonates.
Authors: TUPCHIENKO S. K. , DUDCHENKO T. N. , PROKOPENKO V. P. , SINITSA A. D. 
Published: May 2016

AbstractThe title compounds (III), prepared by reaction of the benzhydrazonoyl chlorides (I) with the phosphoramidites (II), are capable of prototropic migration in the triade N‐N‐C. Depending on the nature of the substituents, the tautomer (III) or (IV) prevails.
ChemInform Abstract: Reaction of S‐Ethyl Phenyl‐2‐chloroalkenylthiophosphinites with Nitrilimines.
Authors: NAMESTNIKOV V. I. , TRISHIN YU. G. , TAMM L. A. , CHISTOKLETOV V. N. 
Published: May 2016

AbstractReaction of the thiophosphinites (V) with nitrilimines, generated in situ from the hydrazonoyl halides (VI), produces the diazaphosphorines (VII).