bluuebunny/crossref_metadata_2025 huggingface dataset:
ChemInform Abstract: Size, Shape, and Site Selectivities in the Photochemical Reactions of Molecules Adsorbed on Pentasil Zeolites. Effects of Coadsorbed Water.
Authors: TURRO N. J. , CHENG C.‐C. , ABRAMS L. , CORBIN D. R.
Published: May 2016

The photochemistry of the ketones (I) in the presence of pentasil zeolites follows different pathways due to the location of the adsorbed ketone.
ChemInform Abstract: Photoinduced Electron‐Transfer Fragmentation of Amino Alcohols: Stereochemical Effects and Connectivity Between One‐ and Two‐Electron Events.
Authors: CI X. , LEE L. Y. C. , WHITTEN D. G.
Published: May 2016

Studies with the β‐amino alcohols (I) and (VII) reveal that photoredox‐induced cleavage of the Cα‐Cβ bond can be a clean and efficient reaction closely analogous to two‐electron solvolytic fragmentations.
ChemInform Abstract: ESR Study on the σ‐ and π‐Radical Cations Formed by One‐Electron Oxidation of Phenyldiazomethanes.
Authors: ISHIGURO K. , SAWAKI Y. , IZUOKA A. , SUGAWARA T. , IWAMURA H.
Published: May 2016

The radical cations from (I) and (II) obtained during electrochemical oxidation at low temp. seem to have a "σ‐radical" structure, in which an unpaired electron is localized on two nitrogens.
ChemInform Abstract: Electrochemical Reductions in Liquid Ammonia: Electrolytic Birch Reactions and Chemical Bond Fissions.
Authors: CHAUSSARD J. , COMBELLAS C. , THIEBAULT A.
Published: May 2016

Electrolysis of the aromatic compounds (I) and (III) in liquid ammonia results in Birch reaction, yielding the dihydro derivatives (II) and (IV).
ChemInform Abstract: Selective Allylation of Carbonyl Compounds in Aqueous Media.
Authors: EINHORN C. , LUCHE J.‐L.
Published: May 2016

Allyl bromide (I) is coupled with the carbonyl compounds (II) in the presence of metallic zinc or tin in aqueous THF to give the homoallylic alcohols (III).
ChemInform Abstract: Palladium‐Catalyzed Reaction of Tributyltin Hydride. Regiospecifically Controlled Formation of α‐Bromo‐α,α‐Disubstituted Ketones from Tributyltin β‐Ketocarboxylates.
Authors: GUIBE F. , ZHANG H. X. , BALAVOINE G.
Published: May 2016

The α‐disubstituted allylic β‐keto esters (Ia) ‐ (Id), (Va), and (Vb) react with tributyltin hydride (II) in the presence of a palladium catalyst to give the corresponding tributylstannyl‐β‐ketocarboxylates which are converted to the highly substituted α‐bromoketones (IVa) ‐ (IVd), (VIa), and (VIb) by treatment with N‐bromosuccinimide (III) in situ.
ChemInform Abstract: Asymmetric Oxidation of Some Sulfur Derivatives.
Authors: NEMECEK C. , DUNACH E. , KAGAN H. B.
Published: May 2016

The asymmetric oxidation of the disulfides (I) to give the thiosulfinates (II), of the sulfenamides (III) to form the sulfinamides (IV) and of the sulfenates (V) to yield the sulfinates (VI) is performed under the reaction conditions described.
ChemInform Abstract: Synthesis and Solvolysis of Medium Ring 2‐Cycloalkyn‐1‐ylmethyl Sulfonates.
Authors: HANACK M. , WAECHTLER A. E. F. +
Published: May 2016

The title compounds (IX) are prepared in a five‐step sequence from the known allenes (I).
ChemInform Abstract: 3‐(p‐Acetophenyl)‐1‐phenyltriazene‐N‐oxide. A New Reagent for Gravimetric Determination of Nickel(II) and Palladium(II) and Their Separation from Binary Mixture.
Authors: SARAN K. B. , ROY B. C. , LAHIRI S.
Published: May 2016

The title compound (III) is prepared by coupling phenylhydroxylamine (I) with the diazonium salt (II) derived from p‐aminoacetophenone.
ChemInform Abstract: On the Phytoiatric Antimycotic Activity of Some Benzophenone Oximes.
Authors: MASSOLINI G. , CARMELLINO M. L. , BARUFFINI A.
Published: May 2016

The substituted benzophenone oximes (II) are prepared from the corresponding benzophenones (I).
ChemInform Abstract: 2,2′,4,4′,6,6′‐Hexanitrobiphenyl‐3,3′,5,5′‐tetramine: Synthesis and Comparison of Physicochemical Properties with Those of Other Amino Nitro Biphenyls.
Authors: BELL A. J. , EADIE E. , READ R. W. , SKELTON B. W. , WHITE A. H.
Published: May 2016

The title compound (V) is synthesized and fully characterized by an X‐ray analysis: space group P21/c, Z=4.
ChemInform Abstract: (4)Paracyclophane Intercepted.
Authors: KOSTERMANS G. B. M. , BOBELDIJK M. , DE WOLF W. H. , BICKELHAUPT F.
Published: May 2016

Irradiation with 254 nm of the tetramethylene(Dewar benzene) (I) at ‐20 °C in THF leads to (4)paracyclophane (II).
ChemInform Abstract: Synthesis of 9‐Oxabicyclo(6.1.0)non‐3‐yne.
Authors: MEIER H. , MAYER W. , KOLSHORN H.
Published: May 2016

1,5‐Cyclooctadiene (I) serves as starting material for the synthesis of the title compound which exists as two conformers (VI) and (VII).
ChemInform Abstract: Synthesis of 1‐Arylethynylaziridines.
Authors: TIKHOMIROV D. A. , EREMEEV A. V.
Published: May 2016

The reaction of phenylacetylene (I) with aziridine (II) in the presence of copper(II) acetate and oxygen leads to the formation of the phenylethynylaziridine (III) and diphenylbutadiine (IV).
ChemInform Abstract: Polycyclic Compounds. Part 24. The Influence of Substituents on Reactions of 3‐Oxaquadricyclanes ‐ Formation of Oxatricycloheptanes, Oxepines/Benzene Oxides and Benzofurans.
Authors: GLOMBIK H. , WOLFF C. , TOCHTERMANN W.
Published: May 2016

The oxaquadricyclanes (I) are converted to (II) either by filtration on basic alumina or by heating in toluene, with the latter procedure giving (IIIb) as a by‐product.
ChemInform Abstract: Stereoselectivity in the Synthesis of Substituted 2‐(2‐Tetrahydrofuranyl)acrylates via Intramolecular Oxymercurations or Oxypalladations of Allenes.
Authors: WALKUP R. D. , PARK G.
Published: May 2016

Carbonylation of the hydroxy or siloxy allenes (I) under various catalytic conditions yields the furans (II).
ChemInform Abstract: Intramolecular Enolene and Homodienyl Rearrangements Involving 1,5‐Sigmatropic Shifts in Ethyl 3,3‐Dimethyl‐4‐pentenoate.
Authors: JOSHI G. S. , KULKARNI G. H.
Published: May 2016

Under the given conditions, the ester (I) produces the γ‐lactones (II) and (III).
ChemInform Abstract: The Conversion of Furans to 2(3H)‐Butenolides.
Authors: PELTER A. , ROWLANDS M.
Published: May 2016

The 2‐substituted furans (I) are coupled with the boranes (II) and then oxidized with peracid to produce the butenolides (IV), together with (V).
ChemInform Abstract: Further Observations on the Lewis Acid‐Catalyzed Benzylic Hydroperoxide Rearrangement: Use of a Boron Trifluoride/Hydrogen Peroxide, Preformed, Aged Reagent.
Authors: BOGER D. L. , COLEMAN R. S.
Published: May 2016

7‐Hydroxyindoline (II) is prepared from the alcohols (I) by acid‐catalyzed oxidation and then acetylated to form the derivatives (III).
ChemInform Abstract: Investigations of Imidazo(1,2‐a)benzimidazole Derivatives. Syntheses Using 2‐(2‐Hydroxyethylamino)benzimidazoles.
Authors: ANISIMOVA V. A. , LEVCHENKO M. V.
Published: May 2016

The imidazobenzimidazoles (IV) are prepared from the hydroxyethylaminobenzimidazoles (I) via the chloroethylamino derivatives (II).
ChemInform Abstract: Synthesis of 5‐Alkynylidene‐oxazolidin‐2‐ones.
Authors: TAM T. F. , THOMAS E. , KRANTZ A.
Published: May 2016

The propargyl carbamates (II) undergo halocyclization in the presence of the carbodiimide (III), yielding the iodomethylene oxazolidinones (IV) which are coupled with the alkynes (V) to produce the alkynylidene derivatives (VI) and (VII).
ChemInform Abstract: Palladium‐Catalyzed Reactions of Terminal Acetylenes and Olefins with Halo‐1,3‐azoles.
Authors: SAKAMOTO T. , NAGATA H. , KONDO Y. , SHIRAIWA M. , YAMANAKA H.
Published: May 2016

The terminal alkynes (II) and alkenes (VIII) react with the haloazoles (I), (IV), and (VI) in the presence of palladium catalysts, yielding the substituted products (III), (V), (VII), (IX), (X), and (XI).
ChemInform Abstract: Synthesis of 2‐Carbomethoxy‐ and 2‐(2‐Benzimidazolyl)chromones.
Authors: REDDY K. R. S. , SRIMANNARAYANA G. , RAO N. V. S.
Published: May 2016

The chromone‐2‐carboxylates (III) are prepared from the o‐hydroxyacetophenones (I).
ChemInform Abstract: Derivatives of Octahydropyrrolo(4,3,2‐m,n)acridine. Part 1. Synthesis, Molecular and Crystal Structure of a Novel Heterocyclic System. Derivatives of 2,4,4,5,7,8,9,10‐Octahydropyrrolo(4,3,2‐m,n)acridine‐10‐one.
Authors: BISENIEKS E. A. , BUNDULE M. F. , UDRIKIS YA. R. , DUBUR G. YA. , MISHNEV A. F. , BLEIDELIS YA. YA.
Published: May 2016

The octahydropyrroloacridines (II) and (IV) are formed on heating the bis(dimethylcyclohexanedionyl)acetone (I) or the 3,6‐dimethyl‐9‐benzoyloctahydroxanthenedione (III) with ammonia.
ChemInform Abstract: Azaindoles Derivatives. Part 69. Some Reactions in the 5‐Cyano‐7‐chloro‐7‐azaindole Series and the Lactim‐Lactam Tautomerism of 5‐Cyano‐6‐ hydroxy‐7‐azaindoles.
Authors: SYCHEVA Z. V. , RUBTSOV N. M. , SHEINKER YU. N. , YAKHONTOV L. N.
Published: May 2016

Dehydrogenation of the 7‐azaindolines (I) gives the azaindoles (II).
ChemInform Abstract: Synthesis, NMR, and X‐Ray Study of 1‐Substituted Azeto(2,1‐a)isoquinoline Diastereomers.
Authors: BERNATH G. , FUELOEP F. + , KOBOR J. , SOHAR P. , ARGAY G. , KALMAN A.
Published: May 2016

The N‐benzoyltetrahydroisoquinoline (I) is treated with hydrochloric acid to yield the isomeric benzoyl esters (IIa) and (IIb).
ChemInform Abstract: Acetals and Ketals of 2‐(2‐Pyridyl)propane‐1,3‐diol. Novel Protection for Carbonyl Groups.
Authors: KATRITZKY A. R. , FAN W.‐Q. , LI Q.‐L.
Published: May 2016

The pyridylpropanediol (I) reacts with the aldehydes (IIa) or the ketones (IIb) and (IIc), yielding the pyridyl‐1,3‐dioxanes (III).
ChemInform Abstract: Synthesis of Polynitroaryl Derivatives of 3‐Aryl‐1H,4H‐dihydro‐4,6,6trimethylpyrimidine‐2‐thiols as Possible Fungicides.
Authors: SANGAL S. K. , KUMAR A. , RASTOGI P. , PRAKASH O.
Published: May 2016

Various arylthiopyrimidines (III) are synthesized by coupling the activated chlorobenzenes (I) with the pyrimidine‐2‐thiols (II).
ChemInform Abstract: Condensed Pyridazines. Part 5. Reactions of 7‐(Methylsulfonyl)‐1‐phenyl‐1H‐1,2,3‐triazolo(4,5‐d)pyridazine with Methoxide Ion, Grignard Reagents, Hydrazines, and Amines.
Authors: OISHI E. , YAMADA A. , HAYASHI E. , HIGASHINO T.
Published: May 2016

The chloropyridazine (I) is converted into the methylsulfonyl or methoxy derivatives (II) and (III).
ChemInform Abstract: Synthesis of Medium and Large Rings. Part 18. Scope and Limitation of the Synthesis of 3,6‐Hexanooxepins from Furans and Cyclooctyne.
Authors: VAGT U. , HAASE M. , KONUSCH J. , TOCHTERMANN W.
Published: May 2016

The oxanorbornadienes (II), prepared by cycloaddition reactions of (I) with (III), yield tetracycles (IV) on irradiation (except for (IIf)), whose thermolysis affords the title compounds (V) (discussion of the mechanism involved).
ChemInform Abstract: Borylation of Arylsilanes. Part 1. A General, Easy, and Selective Access to Phenyldihaloboranes.
Authors: KAUFMANN D.
Published: May 2016

In contrast to trifluoroborane (Id), which is inert, the trihaloboranes (Ia)‐(Ic) react with the silane (II) according to A to give the boranes (III) in high yields.
ChemInform Abstract: Bora‐Aromatic Systems. Part 9. Di‐π‐methane‐Like Photorearrangement of Dimesityl(mesitylethynyl)borane: Synthesis, Structure, and Aromaticity of Trimesitylborirene.
Authors: EISCH J. J. , SHAFII B. , RHEINGOLD A. L.
Published: May 2016

The solid borirene (II), prepared by photorearrangement of (I), can be heated at 250 °C for 5 min in the air without decomposition.
ChemInform Abstract: A Simple Synthesis of Allylsilanes via Tris((trimethylsilyl)methyl)borane.
Authors: WANG K. K. , DHUMRONGVARAPORN S.
Published: May 2016

Tris(trimethylsilylmethyl)boron (I) reacts with 1‐octynyllithium (II) to form the salt (III) which is converted to the vinylboranes (V).
ChemInform Abstract: Synthesis of Allylsilanes and β‐(Trimethylsilyl) Ketones via Lithium 1‐Alkynyltrialkylborates.
Authors: WANG K. K. , YANG K. E.
Published: May 2016

The lithium 1‐alkynyltrialkylborates (III), prepared from the trialkyl boranes (I) and the lithium acetylides (II), react with trimethylsilylmethyl triflate (IV) to give the allylsilanes (V).
ChemInform Abstract: Chemistry of O‐Silylated Ketene Acetals. Novel Chemical Transformation of Vinyl Sulfoxides and Related Sulfoxides.
Authors: KITA Y. , TAMURA O. , ITOH F. , YASUDA H. , MIKI T. , TAMURA Y.
Published: May 2016

Coupling of the vinyl sulfoxides (I) with the bulky silyl ketene acetals (II) yields the siloxy(phenylthio)esters (III).
ChemInform Abstract: Photolysis of Acylpolysilanes Containing α‐Hydrogens. Formation of Linear Head‐to‐Head Silene Dimers.
Authors: BAINES K. M. , BROOK A. G.
Published: May 2016

The photolysis of the acylpolysilanes (I) leads to linear (IIIa‐c) and cyclic (IIb,c) head‐to‐head dimers of the intermediates (Me3Si)2Si=C(OSiMe3)R1.
ChemInform Abstract: Synthesis and Reactions of N‐Silylated Ene‐diamines. Part 2. (2 + 2) Cycloadditions: Synthesis of Derivatives of 1,4‐Diamino‐1,3‐butadiene‐2,3‐dicarboxylic Acid.
Authors: TOM DIECK H. , ZETTLITZER M.
Published: May 2016

Reaction of the diazadiene (I) with the chlorosilanes (II) affords the diazasilacyclopentenes (IIIa)‐(IIIc).
ChemInform Abstract: 2,3‐Bis(diphenylphosphinyl)‐1,3‐butadiene via a Double (2,3)‐Sigmatropic Rearrangement. A Reinvestigation of the Reaction of 2‐Butyne‐1,4‐ diol with Chlorodiphenylphosphine.
Authors: POLLOCK T. , SCHMIDBAUR H.
Published: May 2016

2‐Butyne‐1,4‐diol (I) reacts with chlorodiphenylphosphine (II), yielding 2,3‐bisdiphenylphosphinyl‐1,3‐butadiene (V) as a result of rearrangement reactions.
ChemInform Abstract: Synthesis of 1,2‐O‐Isopropylideneglycerothiolo(dithiolo)phosphohomocholines. A New Variant of the Thione‐Thiol Isomerization of Alkylenethionophosphates.
Authors: NIFANT'EV E. E. , PREDVODITELEV D. A. , RASADKINA E. N. , BEKKER A. R.
Published: May 2016

Thionophosphates such as (I), (IV), or (VII) rearrange in the presence of phosphonium salts to give the corresponding thiolophosphates (III), (V), and (VI), or (IX), depending on the structure.
ChemInform Abstract: Special Properties Imparted to the 9‐Phosphabicyclo(6.1.0)nonatriene System by a P‐(2,4,6‐Tri‐tert‐butylphenyl) Substituent. 17O‐NMR Spectrum of a Bicyclic Phosphirane Oxide.
Authors: QUIN L. D. , YAO E.‐Y. , SZEWCZYK J.
Published: May 2016

The 9‐aryl‐9‐phosphacyclo(6.1.0)nona‐2,4,6‐triene (III) is synthesized by reacting dilithium cyclooctatetraenide (I) with the arylphosphonous dichloride (II).
ChemInform Abstract: Synthesis and Structure of Zinc L‐Aspartate Chloride, Zn(L‐AspH)Cl.
Authors: SCHMIDBAUR H. , BACH I. , RIEDE J. , MUELLER G. + , HELBIG J. , HOPF G.
Published: May 2016

The reaction of ZnO or ZnCO3 with L‐aspartic acid yields zinc di(L‐aspartate), wherein aspartic acid functions as a monobasic acid.
ChemInform Abstract: Structure and Characterization of (C5H5)2Zr(H)BH3CH3.
Authors: KOT W. K. , EDELSTEIN N. M. , ZALKIN A.
Published: May 2016

The title complex (I) is obtained by reaction of ZrCl2(C5H5)2 with LiBH3Me in Et2O or chlorobenzene during an unsuccessful attempt to synthesize Zr(C5H5)2(BH3Me)2.
ChemInform Abstract: SnCl4(4‐tBuC6H4CHO)2. X‐Ray Crystal Structure, Solution NMR, and Implications for Reactions at Complexed Carbonyls.
Authors: DENMARK S. E. , HENKE B. R. , WEBER E.
Published: May 2016

To gain more insight into the mechanism and stereoselectivity of cyclization of the allylmetal aldehyde condensation, several studies on the effects of experimental variables (concentration, stoichiometry, additional groups) are carried out on model (I) with SnCl4 as the Lewis acid.
ChemInform Abstract: Synthesis of Zinc, Cadmium, Tin, and Silicon Derivatives of Cubane.
Authors: EATON P. E. , HIGUCHI H. , MILLIKAN R.
Published: May 2016

The cubane diamide (I) is converted to the monomeric metallo derivatives (III) or the polymeric metallo derivatives (V).
ChemInform Abstract: α‐Metallated Vinyl Carbanionoids. Part 2. Preparation and Stability of Vinyllithium Containing Triorganostannyl Groups on the α‐Carbon Atom.
Authors: MITCHELL T. N. , REIMANN W.
Published: May 2016

Reaction of the stannylalkenes (I) with methyllithium (II) in different solvents leads to the formation of the stannylvinyl lithium derivatives (III).
ChemInform Abstract: Interaction of Dimethyltin Sulfide with 1,2‐Dibromoethane. Crystal Structure of the Dimethyltin Dibromide/1,4‐Dithiane Complex.
Authors: SHCHERBAKOV V. I. , GRIGOR'EVA I. K. , RAZUVAEV G. A. , ZAKHAROV L. N. , BOCHKOVA R. I.
Published: May 2016

Reaction of trimeric dimethyltin sulfide (I) with 1,2‐dibromoethane (II) yields the complex (III) which is also obtained from dimethyltin dibromide (IV) and dithiane (V).
ChemInform Abstract: Novel Reactivity Patterns of (N,N′‐Ethylenebis(salicylideneaminato))oxovanadium(IV) in Strongly Acidic Media.
Authors: BONADIES J. A. , BUTLER W. M. , PECORARO V. L. , CARRANO C. J.
Published: May 2016

The title complex (I) displays a rich coordination chemistry in strongly acidic solution with the complexes being generated depending on the choice of solvent, the proton source, and the presence or absence of dioxygen.
ChemInform Abstract: Metallaheterocumulenes. Part 7. α‐Bromoisocyanide Complexes via Addition of Bromide to Cationic 2‐Azoniaallenylidene Complexes.
Authors: FISCHER H. , SEITZ F. , MUELLER G. +
Published: May 2016

Compounds (I) react via the cationic title complexes to give (III).
ChemInform Abstract: Formation of Manganese(IV)‐Oxo‐Porphyrin Derivatives by Decomposition of Peroxycarbonate Complexes.
Authors: SCHAPPACHER M. , WEISS R.
Published: May 2016

The Mn(III)‐peroxycarbonate intermediates (III) formed from the Mn(II)‐superoxo complexes (I) undergo either O‐O bond homolysis into Mn(IV)‐oxo species (V) or O‐O bond heterolysis into Mn(V)‐oxo species (IV) depending on the solvent or the porphyrin used.
ChemInform Abstract: Synthesis and Characterization of Complexes Containing the Bis(1,2‐diolato)oxotechnetium(V) Core.
Authors: DAVISON A. , DEPAMPHILIS B. V. , JONES A. G. , FRANKLIN K. J. , LOCK C. J. L.
Published: May 2016

Utilizing the lability of TcOCl4‐ toward ligand exchange its reaction with corresponding diols in methanol yields the complexes (I) and (II).
ChemInform Abstract: Intramolecular Electron Transfer in the Reductive Chromophore‐Quencher Complex ((bpy)Re(CO)3(py‐PTZ))+.
Authors: CHEN P. , WESTMORELAND T. D. , DANIELSON E. , SCHANZE K. S. , ANTHON D. , NEVEUX P. E. JUN. , MEYER T. J.
Published: May 2016

The complexes (III), (V), and (VIII), which contain both an MLCT chromophore and the chemically attached reductive quencher ligand, are prepared as shown in the scheme (yield given only for (III)).
ChemInform Abstract: Reaction of Cyclic Fe(η5‐C5H4PPh)(η5‐C5H4) with LiC5H5 and NaFe(CO)2(η5‐C5H5). Structures of (Fe((η5‐C5H4)2)P(C6H5)‐P)Fe(H)(η5‐C5H5)(CO) and ((C6H5)(Fe(η5‐C5H5)(η5‐C5H4)) (Fe(η5‐C5H5)(η5‐C5H3C(O)))P‐P,C)Fe(η5‐C5H5)(CO)·CHCl3.
Authors: BUTLER I. R. , CULLEN W. R. , RETTIG S. J.
Published: May 2016

Treatment of (1,1'‐ferrocenediyl)phenylphosphine (I) with NaFe(CO)2(η5‐C5H5) (II) leads to the binuclear title complex (III).
ChemInform Abstract: Electronic and Spectral Properties of Organometallic Tetracyano‐p‐quinodimethane (TCNQ) Salts with Metallocene Stacks.
Authors: PUKACKI W. , PAWLAK M. , GRAJA A. , LEQUAN M. , LEQUAN R. M.
Published: May 2016

The two salts (III), prepared as shown in the scheme, are characterized by dc conductivity, thermoelectric power, and IR spectroscopy.
ChemInform Abstract: A High Yield Synthesis of Biferrocenyl.
Authors: KORAY A. R. , ERTAS M. , BEKAROGLU OE. +
Published: May 2016

A new route to biferrocenyl (III) is described starting with bromoferrocene (I).
ChemInform Abstract: Noncovalent Interactions in Metal Complexes. Part 15. Stereoselectivity of Cobalt(III) Mixed Chelates with Bis(1‐l‐menthyloxy‐3‐benzoylacetone)ethylenediimine and a Diamine.
Authors: OKAWA H. , MAEDA S. , NAKAMURA M. , KIDA S.
Published: May 2016

The condensation product (I) of 1‐1‐menthyloxy‐3‐benzoylacetone and ethylenediamine reacts with cobalt(II) acetate to yield the Co complex (III).
ChemInform Abstract: Synthesis and Complexing Properties of the Large Polyazacycloalkane 1,4,7,10,13,16,19,22,25,28‐Decaazacyclotriacontane (L). Crystal Structure of the Monoprotonated Dicopper(II) Complex (Cu2(L)HCl2)(ClO4)3·4 H2O.
Authors: BENCINI A. , BIANCHI A. , GARCIA‐ESPANA E. , GIUSTI M. , MANGANI S. , MICHELONI M. , ORIOLI P. , PAOLETTI P.
Published: May 2016

The hitherto largest N heterocycle (IV) is prepared.
ChemInform Abstract: Protonation of Six‐Coordinate Hydrido Complexes of Osmium(II). Examples of Seven‐Coordination in Osmium Polypyridyl Chemistry.
Authors: SULLIVAN B. P. , LUMPKIN R. S. , MEYER T. J.
Published: May 2016

The hydrido osmium(II) complexes (I) undergo protonation with the acid (II) to form the dihydrido complexes (III).
ChemInform Abstract: Higher Oxidation State Chemistry of Osmocene: Dimeric Nature of the Osmocenium Ion.
Authors: DROEGE M. W. , HARMAN W. D. , TAUBE H.
Published: May 2016

Oxidation of osmocene leads to the discovery of the metal‐metal bonded osmocenium dimer (II) whose crystal structure (space group P4n2, Z=2) is determined as its PF6‐ salt.
ChemInform Abstract: Disperse Dyes Derived from 4‐Phenylazo‐1‐naphthylamine and 4‐Phenylazo‐ 5‐hydroxy‐1‐naphthylamine.
Authors: PETERS A. T. , SENER M. E.
Published: May 2016

Application of the Bucherer reaction of the 1‐naphthols (I) with the amines (II) leads to a satisfactory synthesis of the 1‐naphthylamines (III).
ChemInform Abstract: Synthesis of Porphyrins with Four Exocyclic Rings from 4,5,6,7‐Tetrahydroindoles.
Authors: LASH T. D. , BLADEL K. A. , JOHNSON M. C.
Published: May 2016

The tetrahydroindoles (I) react with lead tetraacetate to give the acetoxy derivatives (II).
ChemInform Abstract: Asymmetric Aza‐Claisen Rearrangement: Synthesis of (+)‐Dihydropallescensin‐2 ((+)‐Penlanpallescensin).
Authors: KURTH M. J. , SOARES C. J.
Published: May 2016

The mesylate (IIb), prepared from 2‐methylcyclohexanone (I) by known methods, is coupled with the oxazoline (III), forming the oxazolinium salt (IV).
ChemInform Abstract: A New and Facile Synthesis of 2‐Alkenenitriles Using 3‐Buten‐2‐one Cyanohydrin Diethyl Phosphate. Application to (.+‐.)‐(E)‐Nuciferol Synthesis.
Authors: YONEDA R. , HARUSAWA S. , KURIHARA T.
Published: May 2016

The diethyl phosphate (I), derived from diethyl phosphorocyanidate and methyl vinyl ketone in the presence of lithium cyanamide, reacts with the organocopper compounds (II) to yield the γ‐coupling products (IIIa).
ChemInform Abstract: Asymmetric Halogenation of Chiral Imide Enolates. A General Approach to the Synthesis of Enantiomerically Pure α‐Amino Acids.
Authors: EVANS D. A. , ELLMAN J. A. , DOROW R. L.
Published: May 2016

The N‐acyloxazolidones (III), prepared from the acids (I) and the optically active oxazolidinone (II), are converted to the enolates (V).
ChemInform Abstract: A Total Synthesis of Polyether Antibiotic (‐)‐A23187 (Calcimycin).
Authors: NEGRI D. P. , KISHI Y.
Published: May 2016

The key step in the synthesis of the polyether antibiotic calcimycin is the stereospecific cyclization of the hydroxy ketone (III), yielding the spiro‐acetal (IV).
ChemInform Abstract: Occurrence of F Acids in Cattle Liver and Their Enzymatic Degradation During Tissue Damage.
Authors: SCHOEDEL R. + , SPITELLER G.
Published: May 2016

Furanalkanoic acids (F acids) (I) occur in cattle liver as cholesterides and glycerides.
ChemInform Abstract: Single Step Introduction of Terminal 1,3‐Butadienyl Group. A Short Synthesis of the Pheromone (IV) of Redbollworm Moth.
Authors: KOZIMA S. , ISHII T. , TSUBOI T. , KAWANISI M. , MIZUNO M. , HITOMI T.
Published: May 2016

Addition of the Grignard reagent (II) to carbonyl compounds gives alcohols which have a 1,3‐butadienyl group.
ChemInform Abstract: Characterization of the Oxidation States of Iron by Spectrometric Methods. Part 1. Spinel Oxides with One Sublattice of Mixed Valence.
Authors: HANNOYER B. , LENGLET M. , TELLIER J. C.
Published: May 2016

Iron spinels in which mixed valence is observed on A or B sites have been investigated by means of X‐ray spectrometry and optical spectroscopy (for Fe02+.47Fe03+.47Cr13+.88□0.18O4 and Fe12+‐xNi2+ xCr23+‐xFe3+ xO4; mixed valence on A sites).
ChemInform Abstract: Characterization of the Oxidation States of Iron by Spectrometric Methods. Part 2. Spinel Oxides with Two Sublattices of Mixed Valence.
Authors: LENGLET M. , ARSENE J. , JEANNOT F.
Published: May 2016

The X‐ray and optical spectra of FeM2O4, FeM2‐xFexO4 (M: Al, Cr; 0 < x ≦ 1), and Fe2MoO4 are recorded and analyzed.
ChemInform Abstract: Organo‐Tellurium Compounds in Organic Synthesis
Authors: SADEKOV I. D. , RIVKIN B. B. , MINKIN V. I.
Published: May 2016

Review: (94 refs.
ChemInform Abstract: Polymeric Reagents in the Synthesis of Peptides
Authors: ANDREEV S. M. , SAMOILOVA N. A. , DAVIDOVICH YU. A. , ROGOZHIN S. V.
Published: May 2016

Review: (201 refs.
ChemInform Abstract: New Pathway to Triammine Complexes of Chromium(III): Crystal Structure of 1‐Chloro‐2,3‐diaqua‐4,5,6‐triamminechromium(III) Chloride.
Authors: PONS J. , CASABO J. , SOLANS X. , FONT ALTABA M.
Published: May 2016

The title compound has been obtained by a simple HCl treatment of cis‐(Cr(NH3)4(H2O)2)(ClO4)3.
ChemInform Abstract: Influence of Seed Crystals on the Formation of Calcium Silicates with the Composition 3 CaO·2 SiO2.
Authors: STADE H.
Published: May 2016

It is shown that the presence of seed crystals facilitates or enables the formation of kilchoanite (Ca6((SiO4)(Si3O10))) and rankinite (Ca3Si2O7), respectively.
ChemInform Abstract: Covalent Electrophilic Catalysis of the Breakdown of Hyponitrite to Nitrous Oxide by Aldehydes, Ketones, and Carbon Dioxide.
Authors: LOECHLER E. L. , SCHNEIDER A. M. , SCHWARTZ D. B. , HOLLOCHER T. C.
Published: May 2016

The breakdown of the trans‐hyponitrite monoanion (HN2O2‐) into N2O is catalyzed by aldehydes and ketones and that of the trans‐dianion is catalyzed by CO2.
ChemInform Abstract: Influence of Citric Acid on the Hydration of Tricalcium Silicate (Ca3SiO5).
Authors: STADELMANN C.
Published: May 2016

The reasons of the strong retarding effect of citric acid on the Ca3SiO5 hydration are shown to be the formation of a silica gel‐like coating on the silicate surface and the inhibition of the Ca(OH)2 crystallization.
ChemInform Abstract: Action of Carbon Dioxide on Vanadium Pentoxide. Study of a Carboxyvanadate Derivative.
Authors: DAUPHIN C. , HAMON M.
Published: May 2016

Action of gaseous CO2 on an aqueous suspension of vanadium pentoxide results in the formation of an acidic, yellow solution.
ChemInform Abstract: Experimental Investigations on the Tungsten Transport in Systems Containing Fluorine Compounds.
Authors: RIESEL L. , DIMITROV A. , SZILLAT P. , VOGT H.
Published: May 2016

From investigations of the chemical processes in tungsten incandescent lamps containing gaseous fluorides, e.g. C2Br2F4, as the transportation agent by IR and UV spectroscopic and MS analysis of the gas phase as well as by analysis of the deposits at the wall and changes at the filament it is concluded, that fluorine containing gases are converted irreversibly into SiF4 which also maintains the chemical W transport.
ChemInform Abstract: Synthesis of Co(III) Molybdoheteropolyanions Using Carbonato‐Ammine Co(III) Complexes as Starting Materials.
Authors: NOMIYA K. , WADA M. , MURASAKI H. , MIWA M.
Published: May 2016

The preparation of the Co(III) molybdoheteropolyanions (I) and (II) has been systematically investigated using the complexes (IV)‐(V) as starting materials.
ChemInform Abstract: Benzobisdithiazole (BBDT): An ESR Study.
Authors: DORMANN E. , NOWAK M. J. , WILLIAMS K. A. , ANGUS R. O. JUN. , WUDL F.
Published: May 2016

The ESR spectra of the title compound (I) in its neutral and radical cation states in solution and in the solid state are compared with those of benzodithiazole (II) and of the radical cation of the synthetic precursors (III).
ChemInform Abstract: Extended Hückel Molecular Orbital Study of the Effects of Edge‐Bridging Hydrogen Atoms on the Lengths of Boron‐Boron and Metal‐Metal Bonds in Cluster Compounds, and the Crystal Structure of Benzyltrimethylammonium Octahydrotriborate(1‐).
Authors: MITCHELL G. F. , WELCH A. J.
Published: May 2016

The results of EHMO calculations are used to identify the cause of the general lengthening of B‐B and M‐M connectivities in clusters such as (I)‐(V) as a consequence of H‐bridging.
ChemInform Abstract: The Ring‐Stacking Principle in Organolithium Chemistry: Its Development Through the Isolation and Crystal Structures of Hexameric Iminolithium Clusters (RR′C=NLi)6 (R′: Ph, R: tBu or Me2N; R = R′: Me2N or tBu).
Authors: ARMSTRONG D. R. , BARR D. , SNAITH R. , CLEGG W. , MULVEY R. E. , WADE K. , REED D.
Published: May 2016

The two new iminolithium compounds (Ia) and (Ib) are prepared by addition reactions of organolithium reagents to nitriles.
ChemInform Abstract: Lewis‐Base Adducts of Group 11 Metal(I) Compounds. Part 28. Solid‐State 31P Cross‐Polarization Magic‐Angle Spinning NMR and Structural Studies on the Mononuclear 3:1 Adducts of Triphenylphosphine with Copper(I) Halides.
Authors: BARRON P. F. , DYASON J. C. , HEALY P. C. , ENGELHARDT L. M. , PAKAWATCHAI C. , PATRICK V. A. , WHITE A. H.
Published: May 2016

The unsolvated bromide and iodide complexes are isomorphous and crystallize like the chloride analogue in the space group P3 with Z=3.
ChemInform Abstract: Preparation and Structure of Ag2C4O4.
Authors: ROBL CH. , WEISS A.
Published: May 2016

When a mixture of 2 M HNO3, 1 M NaNO3 and 0.1 M Na2C4O4 (neutralized to pH 5) is covered with 1 M AgNO3 after gelatinizing colorless and yellow crystals of Ag squarates grow.
ChemInform Abstract: Configurational Statistics of Acyl Chains in Polyunsaturated Lipid Bilayers from 2H NMR.
Authors: SALMON A. , DODD S. W. , WILLIAMS G. D. , BEACH J. M. , BROWN M. F.
Published: May 2016

The characteristic 2H NMR signatures of the phospholipid (I) in the Lα phase, in which the palmitoyl chain is perdeuterated, are reported.
ChemInform Abstract: Anchimeric Assistance by the Methoxy Group in Solvolysis of the Compounds (Me3Si)2C(SiMe2OMe)(SiMe2X).
Authors: EABORN C. , ROMANELLI M. N.
Published: May 2016

The solvolysis of the title compounds with MeOH‐dioxane and with CF3CH2OH‐dioxane is studied for X: ‐Cl, ‐F, and O‐CO‐Ph, and with MeOH‐dioxane only for further X: ‐Br, ‐ONO2, ‐OTos, ‐SCN, ‐O‐CO‐CF3, ‐OAc, ‐NCS, ‐N3, ‐H, ‐OMe, and ‐OH.
ChemInform Abstract: Intramolecular 1,3‐Dipolar Cycloaddition of Alkyl Azidoalkylidenemalonate and 1,3‐Dipolar Cycloreversion of the Triazoline Intermediate: Synthesis and Reactions of an N‐Sulfonyl‐2,4‐dihydropyrrolo(3,4‐b)indole.
Authors: SHA C.‐K. , CHUANG K.‐S. , WEY S.‐J.
Published: May 2016

The dihydropyrroloindole (V) and its ester (VII) are prepared from the indole (I), the key steps being the intramolecular 1,3‐dipolar cycloaddition of the azide derived from (III) and the 1,3‐dipolar cycloreversion of the triazoline (IV).
ChemInform Abstract: Studies in Macrolide Synthesis: Aldol Condensations of Chiral Ethylketones via Boron Enolates.
Authors: PATERSON I. , MCCLURE C. K.
Published: May 2016

The chiral β‐siloxyketones (I) are converted to the boron enolates (III) which are coupled with the aldehydes (IV), yielding the diastereomeric aldol adducts (V) ‐ (VIII).
ChemInform Abstract: Cation‐Stabilizing Auxiliaries: A New Concept in Biomimetic Polyene Cyclization.
Authors: JOHNSON W. S. , TELFER S. J. , CHENG S. , SCHUBERT U.
Published: May 2016

A concept is presented which allows the enhancement of highly stereoselective polyene cyclizations by a cation‐stabilizing auxiliary appropriately positioned on the substrate.
ChemInform Abstract: Alkene Cyclizations of N‐Alkenyl‐α‐(methylsulfinyl)acetamides and N‐Alkenyl‐α‐chloro‐α‐(methylthio)acetamides: Novel Synthesis of Five‐, Six‐, and Seven‐Membered Lactams.
Authors: ISHIBASHI H. , IKEDA M. , MAEDA H. , ISHIYAMA K. , YOSHIDA M. , AKAI S. , TAMURA Y.
Published: May 2016

The α‐(methylsulfinyl)acetamides (I) or (V) and the α‐chloro‐α‐(methylthio)acetamides (for example (IX)) derived from (VIII) or (XI) undergo cyclization to give the lactams shown in the scheme.
ChemInform Abstract: Tandem Michael Reactions for the Construction of Highly Functionalized Five‐Membered Rings.
Authors: BUNCE R. A. , WAMSLEY E. J. , PIERCE J. D. , SHELLHAMMER A. J. JUN. , DRUMRIGHT R. E.
Published: May 2016

The tandem Michael reaction between (I) and (II) produces mixtures of the diastereomeric cyclopentanes (III) and (IV).
ChemInform Abstract: Photochemistry of Organohalogenic Molecules. Part 20. The Effect of Cycloalkene Structure on the (2 + 2) Photocycloaddition to Hexafluorobenzene.
Authors: SKET B. , ZUPANCIC N. , ZUPAN M.
Published: May 2016

The stereochemistry of photocycloaddition reactions of various cycloalkenes (I), (IV), (VIII) to hexafluorobenzene (III) in cyclohexane solution depends on the structure of the cycloalkene, and (2 + 2) cycloadducts are mainly observed.
ChemInform Abstract: Arylaminyl Radicals Studied by Laser Flash Photolysis of Di‐tert‐butyl Peroxide in the Presence of Arylamines.
Authors: LEYVA E. , PLATZ M. S. , NIU B. , WIRZ J.
Published: May 2016

Laser flash photolysis of tBu‐O‐O‐tBu in the presence of aniline, diphenylamine, carbazole, indole, 1‐ and 2‐naphthylamine, and 1‐pyrenylamine is a clean, simple, and general method to generate and observe the corresponding arylaminyl radicals.
ChemInform Abstract: The Quantitative Electrophilic Reactivity of Annulenes. Part 2. Partial Rate Factors for Hydrogen Exchange of Azulene, Cycl(3,2,2)azine, Indolizine, N‐Methylisoindole, Indole, and Pyrrolo(2,1‐b)thiazole, and Attempted Exchange in trans‐9,10‐Dimethyldihydropyrene: the Dramatic Effect of Creating Aromaticity in the Transition State for Electrophilic Substitution, and the Importance of Valence Bond Theory.
Authors: LAWS A. P. , TAYLOR R.
Published: May 2016

On the basis of experimentally determined rates of acid‐catalyzed detritiations of molecules such as (I)‐(VI) together with some literature data on deuteration partial rate factors, σ+ values, reactivities, and reactive sites of the molecules considered are estimated.
ChemInform Abstract: Oxidation of Unsaturated Linear and Cyclic Hydrocarbons with Molecular Oxygen Catalyzed by Transition Metal Complexes.
Authors: DZHEMILEVA G. A. , ODINOKOV V. N. , DZHEMILEV U. M.
Published: May 2016

The Pd‐catalyzed oxidation of the unsaturated hydrocarbons (I), (IV), (VI), and (VIII) gives the ketones (II), (III), (V), (VII), (IX), and (X).
ChemInform Abstract: Raney Nickel as a Selective Catalyst for Aldehyde Reduction in the Presence of Ketones.
Authors: BONNIER J.‐M. , DAMON J. P. , MASSON J.
Published: May 2016

The aldehydes (I) are selectively reduced by H2/Raney‐Nickel in the presence of ketones (II) to form the primary alcohols (III).
ChemInform Abstract: Hard Acid and Soft Nucleophile Systems. Part 11. Hard‐Soft Affinity Inversion: Dehalogenation of α‐Halo Ketones with Aluminium Chloride and a Thiol.
Authors: FUJI K. , NODE M. , KAWABATA T. , FUJIMOTO M.
Published: May 2016

Dehalogenation of various α‐halo ketones such as (I), (IV) or (VI) using the thiols (II) or (XI) and AlCl3 affords either dehalogenated products such as (III) or dithioacetals such as (V), (VII) or (XII).
ChemInform Abstract: Homogeneously Catalyzed Synthesis of β‐Amino Alcohols and Vicinal Diamines from Ethylene Glycol and 1,2‐Propanediol.
Authors: MARSELLA J. A.
Published: May 2016

Ethylene glycol (II) is treated with the secondary amines (I) in the presence of ruthenium or iridium complexes to form the amino alcohols (IV) and the diamines (V).
ChemInform Abstract: Oximation of Acetyl(hydroxyimino)acetone: NMR Spectroscopic, Chemical, and X‐Ray Crystallographic Studies of the Reaction Products.
Authors: FRUTTERO R. , CALVINO R. , FERRAROTTI B. , GASCO A. , AIME S. , GOBETTO R. , CHIARI G. , CALESTANI G.
Published: May 2016

Depending on the amount of hydroxylamine used one obtains the isoxazolines (II) and (III) or the products (IV)‐(VI).
ChemInform Abstract: A Ring Contraction Induced by Hydrogen Peroxide.
Authors: BISCHOFF C. , GRUENDEMANN E. + , SCHROEDER E. +
Published: May 2016

The 7a‐carbamoyl‐3‐hydroxybenzoxazole (I), on reaction with H2O2, affords the cyclopentanespirooxazolinone (II).
ChemInform Abstract: Activated Anhydrides of Tartaric and Malic Acids.
Authors: LIESEN G. P. , SUKENIK C. N.
Published: May 2016

Malic acid (Ia) and tartaric acid (Ib) are converted to the anhydrides (III) by reaction with the trihaloacetic anhydrides (II).
ChemInform Abstract: Sulfone Mediated Synthesis of Cyclopentadienone Epoxides from 10‐Oxatricyclo(5.2.1.02,6)decadienones. A Convenient Route to epi‐Pentenomycins.
Authors: KLUNDER A. J. H. , HOUWEN‐CLAASSEN A. A. M. , KOOY M. G. , ZWANENBURG B.
Published: May 2016

Sulfonylmethylation of 10‐oxatricyclodecadienone (I) leads to the formation of the sulfone (IIa) which is etherified by Meerwein's reagent to form the ethoxy derivative (IIb).
ChemInform Abstract: Novel Diphenoquinone‐Type Redox Systems Containing Seven‐Membered Quinonoid Structure.
Authors: IYODA M. , SATO K. , ODA M.
Published: May 2016

The arylzinc derivative (Ic), prepared from the bromide (Ia) via (Ib), is coupled with the bromoaminotropolone (II) to give the compound (III), which is hydrolyzed to yield the tropolone (IV).
ChemInform Abstract: Codimerization of Allyl Carboxylates with Norbornene Compounds Catalyzed by Nickel Complexes.
Authors: DZHEMILEV U. M. , KHUSNUTDINOV R. I. , GALEEV D. K. , NEFEDOV O. M. , TOLSTIKOV G. A.
Published: May 2016

The Ni‐catalyzed codimerization of norbornene (I) with allyl acetate (II) to produce the compounds (IV) and (V) is studied in detail.
ChemInform Abstract: 3‐Aryl‐1‐tetrazol‐5‐yltriazenes, Bench‐Stable Arenediazonium Ion Synthons: Synthesis of Biaryls and Aryl Halides.
Authors: BUTLER R. N. , O'SHEA P. D. , SHELLY D. P.
Published: May 2016

Treatment of the triazenes (I) with TFA or AcOH in benzene (II) leads to good yields of the biaryls (IV)/(V).
ChemInform Abstract: Reaction Between Hydrazines and Aminohydroxy‐hydrobenzoxazol. Synthesis of Azoolefins.
Authors: BISCHOFF C. , SCHROEDER E. +
Published: May 2016

The reaction between the cyclohexanone derivative (I) and cyanamide yields the oxazoline compound (II).
ChemInform Abstract: Adducts of Vinyl Ethers with Arenesulfenyl Chlorides as Reagents for the Electrophilic Alkylation of Vinyl Ethers.
Authors: SMOLYAKOVA I. P. , SMIT V. A. , LUTSENKO A. I.
Published: May 2016

p‐Toluenesulfenyl chloride (II) reacts with vinyl ethers such as (Ia) to give the addition product (III) which is subsequently coupled with the vinyl ethers (I) or the ethynyl ether (VII) in the presence of Lewis acids, forming the compounds (IV) ‐ (VI) or (VIII), depending on the work‐up.
ChemInform Abstract: Addition of Arylureas to Aroyl Isothiocyanates and the Synthesis of 1‐Aroyl‐5‐aryl‐2‐thiobiurets and 2‐Aryl‐5‐aroylamino‐2,3‐dihydro‐1,2,4‐thiadiazol‐3‐ones.
Authors: FOULI F. A. , SHABAN M. E. , YOUSSEF A. S. A.
Published: May 2016

Addition of the arylureas (II) to the aroyl isothiocyanates (I) affords the hitherto unknown title compounds (III) "in good yields".
ChemInform Abstract: Divalent Samarium‐Induced Cyclopropanation of Lithium Enolates. A One‐ Pot Synthesis of Cyclopropanols from Ketones.
Authors: IMAMOTO T. , TAKIYAMA N.
Published: May 2016

Acetophenone (Ia) and propiophenone (Ib) are converted to the lithium enolates (II) which react with diiodomethane (III) in the presence of samarium diiodide, yielding the cyclopropanols (IV).
ChemInform Abstract: Synthesis of the Barbaralone Nucleus via Photocyclization of an Alkynyl Tropone.
Authors: FELDMAN K. S. , COME J. H. , FEGLEY G. J. , SMITH B. D. , PARVEZ M.
Published: May 2016

Irradiation of the 2‐alkynyl tropones (I) yields the cyclization products (III) ‐ (IV) via (II) which give different mixtures of the barbaralones (VI) ‐ (IX) when the thiophenol (V) is added.
ChemInform Abstract: A Novel Route for the Synthesis of Linearly and Angularly Annelated Polycyclic Compounds Containing a Cyclopentane Fragment.
Authors: SMIT V. A. , GYBIN A. S. , SIMONYAN S. O. , VERETENOV A. L. , SHASHKOV A. S.
Published: May 2016

The reaction scheme for the preparation of the bicyclic compound (V) using a method described earlier is given without further comment.
ChemInform Abstract: Photochemistry of the Anthracene Chromophore: Synthesis and Photochemical Isomerization of 1,2‐Di(9‐anthryl)‐1‐hydroxypropene, a Novel Simple Enol.
Authors: BECKER H.‐D. , ANDERSSON K.
Published: May 2016

1,2‐Dianthrylethanone (III) reacts with sodium methylate and dimethyl sulfate to give the isomeric enol ethers (Ib) and (IIb) which equilibrate and partly dimerize on irradiation, yielding (IVa).
ChemInform Abstract: Theory and Application of Photoelectron Spectroscopy. Part 111. Dihydrocyclobutafuran.
Authors: MUENZEL N. + , SCHWEIG A.
Published: May 2016

Thermolysis of the known furan (I) leads to dimethylenedihydrofuran (II) identified by its PE spectrum.
ChemInform Abstract: A Novel 3(2H)‐Furanone‐2(5H)‐Furanone Rearrangement.
Authors: MACK R. A. , GEORGIEV V. ST.
Published: May 2016

Reaction of the 3(2H)‐furanones (I) with the phosphorodiamidic chloride (II) and the anilines (III) results in the formation of the rearranged 2(5H)‐furanones (IV).
ChemInform Abstract: Antiinflammatory, Analgesic Porperties, and Antipyretic Action of 3‐Aminoindazole Derivatives.
Authors: KAWAKUBO H. , SONE T. , WAKIGAWA K. , NARITA T.
Published: May 2016

The 3‐aminoindazoles (V) and (X) are prepared by usual synthetic methods as outlined in the reaction scheme.
ChemInform Abstract: A New Thermal Decomposition of the Isoxazole Ring.
Authors: CORSICO CODA A. , DE GAUDENZI L. , DESIMONI G. , RIGHETTI P. P. , TACCONI G.
Published: May 2016

Thermolysis of the phenylazoisoxazole (III) in the presence of the dipolarophiles (IV), (VII), (IX), (XI), or (XII) gives the pyrazole derivatives (V), (VIII), (X), and (XIII), together with the triazole (VI).
ChemInform Abstract: Photochemical Formation of Heteromethylenecyclopropanes. Part 16. 1,4,5‐Substituted Tetrazolium Salts Through Methylation of 1,5‐Substituted Tetrazoles and (3 + 2) Cycloaddition of Alkyl Azides to Nitrilium Ions.
Authors: QUAST H. , BIEBER L. , MEICHSNER G.
Published: May 2016

Methylation of the tetrazoles (I) gives mixtures of the isomerically substituted tetrazolium salts (III) + (IV) which are separated, isolated, and characterized by conversion in better crystallizing tetrafluoroborates, hexafluorophosphates, tetraphenylborates, or perchlorates in strongly varying yields.
ChemInform Abstract: The Formation and X‐Ray Crystal Structure of a Novel Bridged Dilactone Derived from Chrysanthemic Acid by Dimerization of Lavandulylic Acids.
Authors: GOLDSCHMIDT Z. , CRAMMER B. , GOTTLIEB H. E.
Published: May 2016

Treatment of chrysanthemic acid (Ia) or its ethyl ester (Ib) with sulfuric acid produces the dilactone (II) as a result of dimerization of dienes which are formed by cleavage of the cyclopropane ring.
ChemInform Abstract: δ3‐Dihydropyrans and Tetrahydropyrans by Reduction of Pyrylium Salts with Sodium Borohydride in Acetic Acid.
Authors: BALABAN T.‐S. , BALABAN A. T.
Published: May 2016

Reduction of the pyrylium salts (I) with sodium boranate in excess acetic acid yields the pyran derivatives (II), (III), (VI), and (VIII), the dienones (IV) and (V) and the dione (VII).
ChemInform Abstract: Mechanistic Investigations of the Cycloaddition Reactions of Thioxanthenylidene S,S‐Dioxide.
Authors: ABDEL‐WAHAB A. A. , DOSS S. H. , DUERR H. + , TURRO N. J. , GOULD I. R.
Published: May 2016

Photolysis of the diazo compound (I) in the presence of the styrenes (II) yields the cyclopropane derivatives (III), together with the dimer (IV).
ChemInform Abstract: peri‐Substituted Imidazo(1,2‐a)pyridines. A New Reductive Elimination Reaction.
Authors: REES C. W. , SMITH D. I.
Published: May 2016

Reductive elimination of (I) or (III) using hydrazine affords the imidazopyridines (II) or (IV).
ChemInform Abstract: Synthesis of 3‐Amino‐6‐methyl‐5‐ethoxycarbonyl‐4,7‐dihydrothieno‐(2,3‐b)pyridine Derivatives.
Authors: KRAUZE A. A. , LIEPINSH' E. E. , PELCHER YU. E. , DUBUR G. YA.
Published: May 2016

Alkylation of the dihydropyridinethiolates (I) with the haloacetonitriles or haloacetamides (II) gives the 2‐cyanomethylthio or 2‐carbamoylmethylthio substituted dihydropyridines (III).
ChemInform Abstract: Reduction and Basic Hydrolysis of 5‐Oxoindeno(1,2‐b)pyridinium Salts.
Authors: MUTSENIETSE D. KH. , ZANDERSONS A. Z. , LUSIS V. K. , DUBUR G. YA.
Published: May 2016

Reduction of the oxoindenopyridinium perchlorates (I) with sodium borohydride yields the dihydro derivatives (II).
ChemInform Abstract: A New Rearrangement in the Methylation of 2‐(Diethylamino)‐3‐(ethoxycarbonyl)‐5‐phenylazepinyl Anion.
Authors: STREEF J. W. , VAN DER PLAS H. C. , WEI Y. Y. , DECLERCQ J. P. , VAN MEERSSCHE M.
Published: May 2016

Base‐catalyzed rearrangement of the carbanion derived from the azepine (I) and subsequent methylation yield the azanorcaradiene (III).
ChemInform Abstract: Investigations on Diazo Compounds and Azides. Part 59. Synthesis of Aminopyridazines from Aminocyclopropenylium Salts and Diazomethyl Compounds.
Authors: HEYDT H. , EISENBARTH P. , FEITH K. , URGAST K. , MAAS G. , REGITZ M.
Published: May 2016

The cyclopropenylium salts (II) and (IV) react with diazomethyl compounds of type (I) to give the pyridazines (III) and (V), respectively.
ChemInform Abstract: Degradation of Oral Antidiabetics. Part 2. Reactions of Arylsulfonylureas with 4‐Toluenesulfonyl Chloride.
Authors: EGG H. , LEIBETSEDER H. , PATZAK A. , STEINKELLNER L.
Published: May 2016

Reaction of the arylsulfonylureas (I) with tosyl chloride usually gives the trisubstituted guanidines (II) and/or the sulfonamides (IV).
ChemInform Abstract: Synthesis and Experimental Antitumor Activities of 6‐Alkyl(or Aryl)thio‐5‐deazapteridines.
Authors: POCHAT F. , LAVELLE F. , FIZAMES C. , ZERIAL A.
Published: May 2016

The title compounds (III) are synthesized as described in the scheme and tested against leukemia cells.
ChemInform Abstract: Synthesis of Substituted 2,3‐Dihydro‐1‐(β‐phenylethyl)‐2‐aryl and 2,3‐Diaryl‐4(1H)‐quinazolinones and Their Pharmacological Activities.
Authors: SADANANDAM Y. S. , REDDY K. R. M. , RAO A. B.
Published: May 2016

Title compounds of type (III) and (VI) are synthesized as shown in the scheme and screened for their pharmacological activity.
ChemInform Abstract: Synthesis and Anti‐Leishmaniosis Activity of 2‐(2′‐Chlorostyryl)‐4‐(δ‐ diethylamino‐α‐methylbutylamino)‐7‐chloroquinazoline Diphosphate.
Authors: YAKHONTOV L. N. , ZHIKHAREVA G. P. , MASTAFANOVA L. I. , EVSTRATOVA M. I. , PERSHIN G. N. , MOSKALENKO N. YU. , PUSHKINA T. V. , KUTCHAK S. N. , FADEEVA N. I. , SOKOLOVA N. D. , GUS'KOVA T. A. , CHICHERINA L. A. , SHAROVA S. A.
Published: May 2016

The synthesis of the title compound (VII) (aminazoline) is carried out as shown in the reaction scheme and compared with that of aminoquinol (IX).
ChemInform Abstract: Saturated Heterocycles. Part 124. Stereochemical Studies. Part 123. A Simple Synthesis of Condensed N‐Methyl‐Substituted 1,3‐Oxazines.
Authors: FUELOEP F. + , PIHLAJA K. , BERNATH G.
Published: May 2016

The previously published reaction A) of the oxazines (I) is repeated and, besides the formerly isolated p‐nitrobenzaldehyde (II), the N‐methyl oxazines (III) (isolated as picrates) are now found in the mother liquor.
ChemInform Abstract: Stereochemical Studies. Part 89. Saturated Heterocycles. Part 84. Preparation and NMR Study of Norbornane‐Norbornene‐Fused 2‐Phenylimino‐1,3‐oxazines and ‐thiazines.
Authors: SOHAR P. , STAJER G. , SZABO A. E. , FUELOEP F. + , SZUNYOG J. , BERNATH G.
Published: May 2016

With Ph‐NCS (II) the diexo norbornenes (Ia) and norbornanes (Ib) are converted into the thioureas (III).
ChemInform Abstract: Synthesis and Cycloaddition Reaction of 2a,4,5‐Triazabenz(cd)azulene Derivatives.
Authors: ABE N. , GOMI A.
Published: May 2016

The hydrazinoazaazulene (Ia) reacts with triethyl orthoformate (II), producing the triazabenzazulene (IIIa).
ChemInform Abstract: Synthesis and Copper(I) Complexes of a Series of 9‐ to 13‐Membered N3 Macrocycles.
Authors: BRIELLMANN M. , KADERLI S. , MEYER C. J. , ZUBERBUEHLER A. D. +
Published: May 2016

The macrocycles (IV) are obtained via the cyclized products (III) and their subsequent detosylation by thermal or chromatographic methods.
ChemInform Abstract: Dioxa‐1,3‐bishomopentaprismane: Synthesis and Transformations.
Authors: MEHTA G. , REDDY K. R.
Published: May 2016

The dioxa‐1,3‐bishomopentaprismane carboxylic acid (Ia) is converted to the parent compound (Ic) by Hunsdiecker reaction and subsequent reduction.