bluuebunny/crossref_metadata_2025_split huggingface dataset:
ChemInform Abstract: An Efficient Synthesis of (S)‐5‐Hydroxymethyl‐2(5H)‐furanone.
Authors: VEKEMANS J. A. J. M. , FRANKEN G. A. M. , CHITTENDEN G. J. F. , GODEFROI E. F. 
Published: May 2016

AbstractThe β‐acetoxy‐α‐bromolactones (I) are converted to the olefins (IIa) and (IIb) which are hydrolyzed to form the (S)‐5‐hydroxymethyl‐2(5H)‐ furanone (IIc).
ChemInform Abstract: The Reaction of α‐Chloro‐α‐phenylthio Ketones with Phenols: An Alternative Synthesis of Benzofurans.
Authors: LEE T. V. , GALAN A. A. , CHAPLEO C. B. 
Published: May 2016

AbstractThe phenols (I) are coupled with the α‐chloro‐α‐phenylthio ketones (II) in the presence of Lewis acids to form the intermediates (III) which are cyclized, yielding the benzofurans (IV).
ChemInform Abstract: An Expeditious Synthesis of 4(5)‐(3‐Aminopropyl)imidazole.
Authors: ADGER B. M. , SURTEES J. 
Published: May 2016

Abstract1‐Trityl‐4‐formylimidazole (I), which has been prepared from fructose by a procedure already described in the literature, undergoes Wittig‐ Horner reaction with the phosphonate (II) to produce the imidazolylacrylonitrile (III).
ChemInform Abstract: Reactions of Aldehydes with Hydrazine Hydrochlorides in the Presence of Dipolarophiles. Intra‐ and Intermolecular (3+ + 2) Cycloadditions.
Authors: SHIMIZU T. , HAYASHI Y. , MIKI M. , TERAMURA K. 
Published: May 2016

AbstractReaction of two equivalents of the 2‐(alkenyloxy)naphthalene‐1‐carbaldehydes (I) with hydrazine dihydrochloride (II) produces the fused pyrazolium salts (III) which are converted to the free amines (IV) on treatment with triethylamine.
ChemInform Abstract: Reactions of 3‐(N‐Tolylcarbamido)‐6‐bromocoumarin. Synthesis of 4‐Substituted 3,4‐Dihydrocoumarins. 4‐α‐Chromene Acetic Acid, Benzopyranopyridones and 3,4,5,6‐Tetrahydro‐1,3‐benzoxazocine Derivatives.
Authors: EL‐KADY M. , SAYED G. H. , SALEH R. M. , MOSA H. M. 
Published: May 2016

AbstractThe reactivity of the coumarin derivative (I) towards the Grignard reagents (II) and various CH‐acidic compounds (V), (VII), and (IX) in the presence of bases or amines such as (XI) is investigated.
ChemInform Abstract: Mannich Reaction and Cyanoethylation of Some 6‐(α‐Styryl)pyridazinone Derivatives.
Authors: ISMAIL M. F. , SHAMS N. A. , ELKHAMRY A. M. , MOUSTAFA O. E. A. 
Published: May 2016

AbstractThe dihydropyridazinones (I) react with acrylonitrile (II) to give the N‐cyanoethyl derivatives (III) which are hydrolyzed to form the pyridazinylpropionic acids (IV).
ChemInform Abstract: Synthesis of 1‐Formyl‐1,1‐dialkylmethylphosphonates.
Authors: TEULADE M.‐P. , SAVIGNAC P. 
Published: May 2016

AbstractThe α‐formylalkylphosphonates (IV) are prepared by two routes: either by treatment of the α‐lithiophosphonates (II) with ethyl formate and subsequent hydrolysis or from the α‐lithio‐α‐chlorophosphonates (VI) and the ketones (VII) by Lewis acid‐induced rearrangement of the epoxy derivatives (VIII).
ChemInform Abstract: Reaction of Alkyl Methylphosphonites with 1,1‐Dichloronitrosopropane.
Authors: SOKOLOV V. B. , IVANOV A. N. , EPISHINA T. A. , MARTYNOV I. V. 
Published: May 2016

AbstractThe methylphosphonites (I) react with the nitrosopropane (II) to give the phosphonates (III).
ChemInform Abstract: The Stereochemistry of Organometallic Compounds. Part 29. Synthesis of Steroidal 1,4‐, 1,3‐ and 1,6‐Diphosphines and Their Evaluation as Ligands in Metal‐Catalyzed Asymmetric Synthesis.
Authors: THOMSON R. J. , JACKSON W. R. , HAARBURGER D. , KLABUNOVSKY E. I. , PAVLOV V. A. 
Published: May 2016

AbstractThe title diphosphines (IV), (V), (X) and (XIII), prepared starting from the cholestan (I), are useful ligands in asymmetric hydrogenation reactions.
ChemInform Abstract: New Types of Triphenylphosphine Acylimides.
Authors: KIRSANOV A. V. , ZASORINA V. A. , SHTEPANEK A. S. , PINCHUK A. M. 
Published: May 2016

AbstractThe phosphine imides (I) react with the dichlorides (II) to produce the bis‐ (III) or monophosphoranylidenamino compounds (IV) depending on the molar ratio.
ChemInform Abstract: Optically Active Arsenic Macrocycles. Stereospecific Syntheses of Enantiomers and Diastereomers of 14‐Membered trans‐As2S2 Chelating Macrocycles Containing Resolved Asymmetric Tertiary Arsine Donors.
Authors: KERR P. G. , LEUNG P.‐H. , WILD S. B. 
Published: May 2016

AbstractThe asymmetric bidentate (±)‐(V) is prepared in five steps from (I).
ChemInform Abstract: Pentabenzylcyclopentadienylthallium(I): Synthesis and Structure of “Dimeric” Organothallium Compounds with Tl‐Tl Interaction.
Authors: SCHUMANN H. , JANIAK C. , PICKARDT J. , BOERNER U. + 
Published: May 2016

AbstractThe title compound is formed in two reversible interconvertible, airand light‐stable modifications on addition of equimolar amounts of Tl ethoxide to pentabenzylcyclopentadiene in hexane at room temperature.
ChemInform Abstract: A New Candidate for the Least Coordinating Anion: Preparation and Characterization of (TlOTeF5(mes)2)2·mes (mes: Mesitylene) and (Tl(mes)+ 2)(B(OTeF5)‐ 4).
Authors: NOIROT M. D. , ANDERSON O. P. , STRAUSS S. H. 
Published: May 2016

AbstractTl pentafluoroorthotellurate (I) prepared from TlF and teflic acid HOTeF5 in toluene reacts with mesitylene (II) to produce the teflate‐bridged di(η6‐mesitylene)Tl dimer (III).
ChemInform Abstract: Isolation and Characterization of Novel Photoproduced M(CO)5(en) Complexes (M: Cr, Mo, W; en: Ethylenediamine).
Authors: MARX D. E. , LEES A. J. 
Published: May 2016

AbstractThe novel title complexes (III) are formed on UV photolysis of the carbonyls (I) with ethylenediamine (II).
ChemInform Abstract: Reaction of (PPh4)(HFe(CO)4) with Dichlorophosphines: A New Entry to Classical and Nonclassical Functionalized Phosphorus Complexes.
Authors: CAMINADE A.‐M. , MAJORAL J.‐P. , SANCHEZ M. , MATHIEU R. , ATTALI S. , GRAND A. 
Published: May 2016

AbstractThe reactivity of the dichlorophosphines (II) toward the Fe title complex (I) is investigated.
ChemInform Abstract: Acceleration of CO Dissociation by a Heterometallic Center: Substitutional Reactivity of Fe2Ru(CO)12 and FeRu2(CO)12.
Authors: SHOJAIE R. , ATWOOD J. D. 
Published: May 2016

AbstractThe substitutional reactivity of the mixed‐metal clusters (I) and (IV) is investigated as a comparison to Fe3(CO)12 and Ru3(CO)12.
ChemInform Abstract: Metathesis of CS2‐Like Heteroallenes on 1,1‐Dithio Complexes of Rhodium(III).
Authors: BIANCHINI C. , MELI A. , VIZZA F. 
Published: May 2016

AbstractThe dithiocarbonate complex (I) reacts with equimolar amounts of (II) or (IV) under mild conditions to give (III) or (V).
ChemInform Abstract: Studies on Tumor Promoters. The First Synthesis of the Phorbol Skeleton.
Authors: WENDER P. A. , KEENAN R. M. , LEE H. Y. 
Published: May 2016

AbstractThe Diels‐Alder reaction of 2‐methoxybutadiene (I) and ethyl glyoxalate (II) represents the starting step in the synthesis of the desired compound (XVIIb).
ChemInform Abstract: Preparation and Properties of a New Dalargine Analogue L‐Tyr‐D‐Ala‐Gly‐L‐Phe‐L‐Tle‐L‐Arg (Ia).
Authors: POSPISEK J. , BESPALOVA Z. D. , KOVARIKOVA E. , TITOV M. I. , BARTH T. , MEDZIHRADSZKY K. 
Published: May 2016

AbstractThe title compound (Ia) is synthesized from two fragments, prepared by step‐wise condensation of active amino acid esters.
ChemInform Abstract: Gas‐Phase Structure of AsCl2F3 and a Vibrational Analysis of AsClnF5‐n (n = 1‐5).
Authors: MINKWITZ R. , PRENZEL H. , SCHARDEY A. , OBERHAMMER H. 
Published: May 2016

AbstractAsCl2F3 (I) has been isolated at ‐80 °C after pyrolysis of AsCl4+AsF6‐.
ChemInform Abstract: X‐Ray Crystallographic and IR Spectroscopic Studies on Hexaamminediiodides, (M(NH3)6)I2 (M: Fe, Mn).
Authors: JACOBS H. , BOCK J. , STUEVE C. + 
Published: May 2016

AbstractPowdered Fe and Mn react with iodine in supercritical ammonia to yield well shaped crystals of the title compounds.
ChemInform Abstract: Single Crystal Growth of γ′‐Fe4N in Supercritical Ammonia.
Authors: JACOBS H. , BOCK J. 
Published: May 2016

AbstractSingle crystals of the title nitride are obtainable by a chemical transport reaction starting from iron and 3 mol% FeI2 in supercritical ammonia (p(NH3) = 6‐8 kbar, 460 °C ≤ T ≤ 580 °C).
ChemInform Abstract: The Influence of Zirconium on Sm(CoFeCuZr)2.7 Alloys for Permanent Magnets. Part 1. Identification of the Phases by Transmission Electron Microscopy.
Authors: DELANNAY F. , DERKAOUI S. , ALLIBERT C. H. 
Published: May 2016

AbstractIn order to understand the evolution of the system in the temp. range 1150‐850 °C, a cast alloy of the composition Sm(Co0.69Fe0.22Cu0.06Zr0.03)7.2 (corresponding to a composition range known to provide good magnetic properties) is exposed to various heat treatments.
ChemInform Abstract: The Chromium‐Selenium System.
Authors: BLACHNIK R. , GUNIA P. G. , FISCHER M. , LUTZ H. D. 
Published: May 2016

AbstractAt higher temp. the title system is dominated by a broad region of solid solutions Cr1‐xSe (40‐50 mol% Cr) crystallizing in the space group P3m1.
ChemInform Abstract: A New Nesoindate: KNa9(InO4)2.
Authors: WAGNER G. , HOPPE R. 
Published: May 2016

AbstractTransparent, colourless single crystals of the title compound have been prepared by annealing a mixture of NaIn, Na2O2, and K2O2 (molar ratio 2:3.5:0.6, Ag‐cylinder, 460 °C, 6 d).
ChemInform Abstract: Synthesis and Characterization of Titanium Phosphates, TiP2O7 and (TiO)2P2O7.
Authors: BAMBERGER C. E. , BEGUN G. M. 
Published: May 2016

AbstractThe title compounds are prepared by the high temp. reactions depicted in the scheme and their Raman spectra and the XRD powder pattern of (V) are reported.
ChemInform Abstract: Oxidation of Intermetallic Phases: CsK2(AuO2) from CsAu + K2O2.
Authors: WAGNER G. , HOPPE R. 
Published: May 2016

AbstractTransparent single crystals of the title compound have been prepared by heating a CsAu/K2O2 1:1 mixture (Ag‐cylinder, 430 °C, 6 d).
ChemInform Abstract: Werner Clathrates. Part 5. Thermal Analysis of Bis(isothiocyanato)tetra(4‐vinylpyridine)nickel(II) Inclusion Compounds. Crystal Structure of the Ni(NCS)2(4‐Vipy)4·2 CHCl3 Clathrate.
Authors: MOORE M. H. , NASSIMBENI L. R. , NIVEN M. L. 
Published: May 2016

AbstractX‐ray structure analysis of the title complex confirms a trans‐octahedral coordination and a "propeller" conformation of the host molecule (space group P21/n, Z=4).
ChemInform Abstract: Diels‐Alder Reactions with 2H‐Pyran‐2‐ones: Reactivity and Selectivity.
Authors: EFFENBERGER F. , ZIEGLER T. 
Published: May 2016

AbstractThe pyrones (I), (IV) react with maleic anhydride (II) in a double Diels‐Alder reaction to give the dianhydrides (III), (V); the syn,syn structure is established.
ChemInform Abstract: An Efficient and Extremely Mild Catalyst System, Combined Use of Trityl Chloride and Tin(II) Chloride, in the Aldol and Michael Reactions.
Authors: MUKAIYAMA T. , KOBAYASHI S. , TAMURA M. , SAGAWA Y. 
Published: May 2016

AbstractThe aldehydes (II) or their corresponding dimethyl acetals (III) are coupled with the silyl enol ethers (Ia) ‐ (If) in the presence of trityl chloride ‐ tin(II) chloride (IV) to give the aldols (V).
ChemInform Abstract: Syntheses of Highly Substituted Benzenes via Diels‐Alder Reactions with 2H‐Pyran‐2‐ones.
Authors: ZIEGLER T. , LAYH M. , EFFENBERGER F. 
Published: May 2016

AbstractThe pyrones (I) react as dienes in Diels‐Alder reactions with the acetylene dicarboxylate (II).
ChemInform Abstract: Wavelength‐, Medium‐, and Temperature‐Dependent Competition Between Photosubstitution and Photofragmentation in Ru3(CO)12 and Fe3(CO)12: Detection and Characterization of Coordinatively Unsaturated M3(CO)11 Complexes.
Authors: BENTSEN J. G. , WRIGHTON M. S. 
Published: May 2016

AbstractIrradiation of Ru3(CO)12 or Fe3(CO)12 in a methylcyclohexane glass at 90 K yields loss of one CO as the only IR detectable photoreaction to yield M3(CO)11 (M: Ru, Fe).
ChemInform Abstract: Sequential Intramolecular Relaxation of Vibrational Energy in a Homologous Series of 2‐Alkyl Radicals.
Authors: TRENWITH A. B. , OSWALD D. A. , RABINOVITCH B. S. , FLOWERS M. C. 
Published: May 2016

AbstractThe nature of the dynamics of intramolecular energy transfer for a homologous series of 2‐alkyl radicals Me‐(CH2)n‐·CH‐CH3 (n: 5, 7, 9) vibrationally excited via a chemical activation technique is probed.
ChemInform Abstract: Biomimetic Aerobic 1,4‐Oxidation of 1,3‐Dienes Catalyzed by Cobalt Tetraphenylporphyrin‐Hydroquinone‐Palladium(II). An Example of Triple Catalysis.
Authors: BAECKVALL J. E. + , AWASTHI A. K. , RENKO Z. D. 
Published: May 2016

AbstractExemplified by 1,3‐cyclohexadiene (I), a catalytic system for O2 oxidation is reported involving a multistep electron transfer with the three redox couples Pd(II)/Pd(0), p‐benzoquinone/hydroquinone, oxo‐Co(TPP)/Co(TPP) (H2TPP: tetraphenylporphyrin) as catalysts.
ChemInform Abstract: Reduction of 2‐Enoates and Alkanoates with Carbon Monoxide or Formate, Viologens, and Clostridium thermoaceticum to Saturated Acids and Unsaturated and Saturated Alcohols.
Authors: SIMON H. , WHITE H. , LEBERTZ H. , THANOS I. 
Published: May 2016

AbstractA series of mono‐ (I) as well as dicarboxylates (III) are reduced by CO in the presence of the title carbon monoxide dehydrogenase and methyl viologen to give the corresponding alcohols (II) or (IV).
ChemInform Abstract: Cobalt Salts‐Catalyzed Carbonylation of Aromatic Halides Under Photostimulation.
Authors: KUDO K. , SHIBATA T. , KASHIMURA T. , MORI S. , SUGITA N. 
Published: May 2016

Abstract3‐Bromobenzoic acid (I) undergoes photo‐induced carboxylative dehalogenation with carbon monoxide (II) in the presence of copper catalysts to yield isophthalic acid (III) as the main product, together with minor amounts of benzoic acid (IV).
ChemInform Abstract: Four‐Center Two‐Electron Bonding in a Tetrahedral Topology. Experimental Realization of Three‐Dimensional Homoaromaticity in the 1,3‐Dehydro‐5,7‐adamantanediyl Dication.
Authors: BREMER M. , VON RAGUE SCHLEYER P. , SCHOETZ K. + , KAUSCH M. , SCHINDLER M. 
Published: May 2016

AbstractThe title dication (III) can successfully be prepared starting from 1,3,5,7‐tetraiodoadamantane which, after reaction with HgF2, affords the adamantane (I).
ChemInform Abstract: A Simple Preparation of 3‐Hydroxy‐4‐methoxytetraphenylmethane.
Authors: OSMAN F. H. , EL‐KATEB A. A. , SIDKY M. M. 
Published: May 2016

AbstractThe direct conversion of the dihydroxy derivative (I) to the monomethoxy compound (III) is described as shown in the reaction scheme.
ChemInform Abstract: Synthesis and Properties of Quaternary Ammonium Salts of Substituted α‐Phenylcinnamonitriles.
Authors: STEWART J. T. , KIM M. 
Published: May 2016

AbstractTitle compounds of type (I) and (II) can be synthesized by base‐catalyzed condensations of the corresponding aldehydes and nitriles, followed by alkylation (no yields given).
ChemInform Abstract: Transition‐Metal Complex Catalyzed Polyfluoroalkylation. A Facile Synthesis of Fluorine‐Containing Oxiranes and Enynes.
Authors: FUCHIKAMI T. , SHIBATA Y. , URATA H. 
Published: May 2016

AbstractThe perfluoroalkyl halogenides (I) react with the allyl alcohols (II) in the presence of a Pd‐catalyst to give the oxiranes (III).
ChemInform Abstract: A Novel Synthesis of (R)‐ and (S)‐4‐Hydroxytetrahydrofuran‐2‐ones.
Authors: TANAKA A. , YAMASHITA K. 
Published: May 2016

Abstract(R)‐4‐Hydroxytetrahydrofuran‐2‐one (VI) is prepared from L‐ascorbic acid (I) in a multi‐step sequence, giving an overall yield of 29%.
ChemInform Abstract: A Practical Synthesis of 2,3‐Dihydro‐2‐benzofurancarboxylic Acid: A General Route to 2,3‐Dihydrobenzofurans.
Authors: EDWARDS C. R. , READHEAD M. J. , TWEDDLE N. J. 
Published: May 2016

AbstractSalicylaldehyde (I) reacts with the ethyl bromoacetates (II) to yield the ethers (III).
ChemInform Abstract: Synthesis of 5‐Alkyl‐3H‐thiolen‐2‐ones and 5‐Alkyl‐3H‐furan‐2‐ones and Condensation at Their Methylene Group.
Authors: SEDAVKINA V. A. , MOROSOVA N. A. , EGOROVA A. YU. , OSTROUMOV I. G. 
Published: May 2016

AbstractIntramolecular cyclization of the γ‐ketocarboxylic acids or their esters (I) results in the formation of the furanones (IIa) and (IIIa) or, in the presence of phosphorus pentasulfide, the corresponding sulfur compounds (IIb) and (IIIb).
ChemInform Abstract: Synthesis of Indoles from Pyridinium Salts.
Authors: GROMOV S. P. , BKHAUMIK M. M. , BUNDEL' YU. G. 
Published: May 2016

AbstractThe 3‐nitropyrimidinium salts (I) react with the ketones (II) and methylamine (III) to give the methylindoles (IV).
ChemInform Abstract: Catalytic Synthesis of 5‐Benzylidenehydantoins from Alkyl Isocyanates and Phenylacetylene.
Authors: SUESS‐FINK G. + , SCHMIDT G. F. , HERRMANN G. 
Published: May 2016

AbstractThe new title compounds (III)/(IV) are prepared from phenylacetylene (I) and the isocyanates (II) in the presence of various ruthenium clusters indicated in the scheme as catalyst precursors.
ChemInform Abstract: Photochemistry of Heterocycles. Part 17. Preparation and Photochemistry of 3‐Cyanosubstituted Condensed Isoxazolines Containing an Oxygen Atom.
Authors: OREMUS V. , FISERA L. , STIBRANYI L. 
Published: May 2016

AbstractThe title compounds (III), (VI) and (IX) rearrange on irradiation to afford the heterocyclic aldehydes (IV), (VII) and (X), respectively.
ChemInform Abstract: Sulfoxides and Sulfones Derived from Aryl‐cis‐1‐thiadecalins.
Authors: KLIMENKO S. K. , SOROKIN N. N. , TYRINA T. I. , STOLBOVA T. V. 
Published: May 2016

AbstractThe mono‐ or diarylthiadecalins (II) are oxidized, producing the sulfoxides (I) and the sulfones (III) respectively.
ChemInform Abstract: Reactions of Lithium Tributylheteroarylborates with Allylic Bromides in the Presence of Copper(I) Cyanide.
Authors: ISHIKURA M. , KAMADA M. , ODA I. , OHTA T. , TERASHIMA M. 
Published: May 2016

AbstractThe bromopyridines and bromoquinolines (I) are lithiated and then coupled with tributylborane (II) to form the lithium borates (III).
ChemInform Abstract: Synthesis of Heterocyclic Compounds Related to Fredericamycin A. The Cyclopent(g)isoquinoline System.
Authors: CLIVE D. L. J. , SEDGEWORTH J. 
Published: May 2016

AbstractThe pyridone (I) is converted to the methoxypyridine (II) which is coupled with the cyclopentenone (III) to give (IV).
ChemInform Abstract: Heterocyclic β‐Enamino Esters. Part 48. Heterocondensed Pyridines by Cycloaddition‐Extrusion Sequence of Bi‐ and Tricyclic 1,3‐Oxazinones with N,N‐Diethyl‐1‐propynylamine.
Authors: MING Y. , HORLEMANN N. , WAMHOFF H. 
Published: May 2016

AbstractThe heterocondensed pyridines (III) and (V) are prepared from the oxazinones (I) or (IV) via a regiospecific cycloaddition‐extrusion sequence.
ChemInform Abstract: Furopyridines. Part 7. Preparation and Hydrolysis of 2‐Cyano and 3‐Cyano Derivatives of Furo(3,2‐b)‐, Furo(2,3‐c)‐, and Furo(3,2‐c)pyridine.
Authors: MORITA H. , SHIOTANI S. 
Published: May 2016

AbstractThe furopyridine (I) is converted to the cyano derivative (VI) via the formyl compound (III) and the oxime (V).
ChemInform Abstract: Synthesis of 8‐Phenyl‐10H‐pyrido(1,2‐a)indolium Salts from 2,3,3‐Trimethyl‐3H‐indolium Chloride and Cinnamic Aldehydes.
Authors: SHACHKUS A. A. , DEGUTIS YU. A. 
Published: May 2016

AbstractThe cinnamic aldehydes (II) react with the indolium salts (I) to give the pyridoindolium salts (III).
ChemInform Abstract: 3‐Amino‐2‐carbamoyl‐4,6‐diphenyl‐4,5‐ and ‐4,7‐dihydrothieno(2,3‐b)pyridines.
Authors: KRAUZE A. A. , LIEPIN'SH E. E. , DUBUR G. YA. 
Published: May 2016

AbstractReaction of the mercaptide (I) with iodo acetamide (II) gives the carbamoylmethylthio derivative (III) which is cyclized, forming the dihydropyridothiophene (IV).
ChemInform Abstract: σ‐Complexes in the Pyrimidine Series. Part 7. Recyclization of 5‐Nitropyrimidine and Its Methoxy Derivatives by Reaction with the Acetylacetone Carbanion.
Authors: REMENNIKOV G. YA. , KURILENKO L. K. , BOLDYREV I. V. , CHERKASOV V. M. 
Published: May 2016

AbstractTreatment of the nitropyrimidines (I), (VII), (X), or (XI) with acetylacetone (II) in a basic medium yields the compounds shown in the reaction scheme.
ChemInform Abstract: Synthesis and Antibacterial Activity of 2((ω‐(Dialkylamino)alkyl)thio)‐3‐aryl(or alkyl)‐6,8‐disubstituted‐4(3H)‐quinazolinones.
Authors: LAKHAN R. , RAI B. J. 
Published: May 2016

AbstractReaction of the quinazolinones (I) with the hydrobromide (II) yields title compounds of type (III).
ChemInform Abstract: 1,2‐Fused Pyrimidines. Part 3. Derivatives of 12H‐Pyrido(1′,2′:1,2)pyrimido(4,5‐b)quinoline, a Novel Heterocyclic System.
Authors: ROMA G. , DI BRACCIO M. , BALBI A. , MAZZEI M. , ERMILI A. 
Published: May 2016

AbstractTreatment of the α‐ethoxycarbonyl amides (I) with POCl3 yields the chloroformamidinium salts (II) which react with 2‐aminopyridine (III), yielding the pyridopyrimidones (IV) and (V).
ChemInform Abstract: Polycyclic N‐Hetero Compounds. Part 29. Synthesis and Antidepressive Evaluation of 15‐Thia‐11,13‐diazasteroidal Analogues and Their Precursors.
Authors: HIROTA T. , HAMAZAKI R. , OHDOI T. , SASAKI K. , NAMBA T. 
Published: May 2016

AbstractThe quinazolines (I) are converted to the thiadiazasteroids (III), (XIII), and (XV) by cyclocondensation processes.
ChemInform Abstract: Selected Reactions on the o‐Aminonitrile System of Substituted Pyrroles.
Authors: EGER K. , PFAHL J. G. , FOLKERS G. , ROTH H. J. 
Published: May 2016

AbstractThe aminopyrrole (Ia) is converted to the pyrrolopyrimidinone (IV) by hydrolysis and cyclization with urea (III).
ChemInform Abstract: 2‐Chloro‐4,5‐dihydroimidazole. Part 3. Synthesis, Reactions and Crystal Structure of 2‐(Alkylthio)‐7,8‐dihydroimidazo(1,2‐a)‐1,3,5‐triazine‐4(6H)‐thiones.
Authors: SACZEWSKI F. , GDANIEC M. 
Published: May 2016

AbstractThe reaction of the salt (II) with ammonium thiocyanate (III) leads to formation of the ring system (IV).
ChemInform Abstract: Fused s‐Triazino Heterocycles. Part 14. 8H‐1,3,7,8,9,10c‐Hexaazacyclopenta(α)phenalene, 1,3,7,8,10,11c‐Hexaazabenz(de)anthracene, and 13H‐4,6,8,13a,13c‐Pentaazabenzo(de)naphthacene, Three New Ring Systems.
Authors: SHAW J. T. , FAIR M. C. 
Published: May 2016

AbstractThe 5‐(tribromomethyl)tetraazaphenalene (Ia) reacts with hydrazine, benzamidine (III), ammonia or anthranilic acid (V) to give the substitution products (Ib) ‐ (Ie).
ChemInform Abstract: Condensed 1,3,5‐Triazines: 1,3,4‐Thiadiazolo(3,2‐a)‐1,3,5‐triazines and Isoxazolo(2,3‐a)‐1,3,5‐triazines.
Authors: EL‐KERDAWY M. M. , BAYOMI S. M. , SHEHATA I. A. , GLENNON R. A. 
Published: May 2016

AbstractThe 2‐aminothiadiazoles (I) are coupled with cyanamide to give the guanidines (II).
ChemInform Abstract: Reactions with Diazoazoles. Part 8. Syntheses of Azolo(5,1‐d)‐1,2,3,5‐tetrazin‐4(3H)‐ones.
Authors: EGE G. , GILBERT K. , MAURER K. 
Published: May 2016

AbstractAzolotetrazinones such as (III) are formed by cycloaddition reaction of α‐diazoazoles such as (I) and isocyanates such as (II).
ChemInform Abstract: Synthesis and Reactivity of Diazomethylenephosphoranes (‐ P=C=N2): New Phosphacumulene Ylides and First Stable Pseudounsaturated Diazo Derivatives.
Authors: SOTIROPOULOS J.‐M. , BACEIREDO A. , BERTRAND G. 
Published: May 2016

AbstractThe water‐sensitive diazomethylenephosphoranes (III) are prepared from the phosphinodiazomethane compounds (I) by reaction with CX4 (II).
ChemInform Abstract: Phosphorylated and Thiophosphorylated Thiazolidine‐ and Oxazolidinethiones.
Authors: VOROB'EVA N. N. , RAZVODOVSKAYA L. V. , NEGREBETSKII V. V. , GRAPOV A. F. , MEL'NIKOV N. N. 
Published: May 2016

AbstractReaction of the oxazolidinethione (Ia), the thiazolidinethiones (Ib), and (VII) or the aminothiazolinone (IX) with the (thio)phosphoric(phosphonic) chlorides (II) gives the phosphorylated compounds (III), (VIII), and (X) depending on the structure of the heterocycles and the phosphorylating agents.
ChemInform Abstract: Phosphorylation of Halogeno‐Substituted β‐Dicarbonyl Compounds with Phosphorus Chlorides in the Presence of Triethylamine.
Authors: KIM T. V. , KISELEVA E. I. , SINITSA A. D. 
Published: May 2016

AbstractReaction of the chlorophosphites (I) with the trifluoroacetoacetates (II) in the presence of triethylamine yields the vinyl phosphites (III) which are thermally stable and do not rearrange to produce the corresponding vinylphosphonates.