bluuebunny/crossref_metadata_2025 huggingface dataset:
ChemInform Abstract: Chiral Synthesis via Organoboranes. Part 25. B‐(Z and E)‐Crotylbis(2‐isocaranyl)boranes as Valuable Reagents for the Asymmetric Crotylboration of Aldehydes.
Authors: BROWN H. C. , RANDAD R. S.
Published: May 2016

Using the boranes (I) and (IV) the asym.
ChemInform Abstract: Stereoselective Synthesis of 1‐Methoxy 1,3‐Dienes by 1,4‐Elimination with Tributylstannyllithium.
Authors: FUJIWARA S. , KATSUMURA S. , ISOE S.
Published: May 2016

Starting with the alkyl bromides (I), the allylic chlorides (VI) are synthesized.
ChemInform Abstract: Thermolysis of 5‐Alkylidene‐1,4‐dihydro‐5H‐tetrazoles.
Authors: QUAST H. , BIEBER L. , REGNAT D.
Published: May 2016

The thermolysis of the tetrazoles (I) is investigated.
ChemInform Abstract: Aza‐Claisen Rearrangement of Amide Enolates. Stereoselective Synthesis of 2,3‐Disubstituted Carboxamides.
Authors: TSUNODA T. , SASAKI O. , ITO S.
Published: May 2016

The unsaturated amides (I) and (V) are converted to their lithium enolates which undergo aza‐Claisen rearrangement to form the amides (III) and (IV).
ChemInform Abstract: UV‐Laser Photochemistry: Retro‐Cleavage in the Benzophenone‐Sensitized Photolysis of δ3‐1,3,4‐Oxadiazolines into Diazoalkanes.
Authors: ADAM W. , FINZEL R.
Published: May 2016

Thermal cleavage of the oxadiazoline (I) gives the vinyl ether (II).
ChemInform Abstract: Application of Organic Compounds Substituted with Elements of Groups 15 and 16 in Organic Synthesis. Part 73. Facile Synthesis of 2,4‐Dienals via an Arsonium Salt and Its Application to Some Natural Products.
Authors: YANG J.‐H. , SHI L.‐L. , XIAO W.‐J. , WEN X.‐Q. , HUANG Y.‐Z.
Published: May 2016

Treatment of 4‐bromocrotonaldehyde (I) with triphenylarsine (II) gives the arsonium bromide (III) as a stable, crystalline compound.
ChemInform Abstract: A Novel Regioselective Synthesis of 4‐Substituted Tropones.
Authors: SHONO T. , MAEKAWA H. , NOZOE T. , KASHIMURA S.
Published: May 2016

Tropone dimethyl acetal (I) reacts with the organolithium compounds (II) to form selectively the 4‐substituted products (III) which are rearranged upon thermolysis, yielding the isomers (IV).
ChemInform Abstract: One‐Pot Annulation to Tricyclo(5.3.1.03,8)undecane‐2,6‐diones by Sequential Three‐Fold Michael Reactions. A Formal Synthesis of (.+‐.)‐Seychellene.
Authors: HAGIWARA H. , OKANO A. , UDA H.
Published: May 2016

Depending on the substitution of the silyl enol ether, e.g. (I), and the reaction conditions, especially the Lewis acid used, besides the desired tricyclic products, e.g. (III) (7 examples), a series of mono‐ and bicyclic products are obtained.
ChemInform Abstract: Stereoselective anti‐Addition of PhIO·TfOH to Terminal Alkynes. Preparation of E‐(β‐Trifluoromethanesulfonyloxyvinyl)iodonium Triflates.
Authors: KITAMURA T. , FURUKI R. , TANIGUCHI H. , STANG P. J.
Published: May 2016

The alkynes (II) react with the iodosylbenzene complex (I) to give the anti‐addition products (III) with high stereoselectivity.
ChemInform Abstract: A Polyarylmethyl Carbotetraanion (VII).
Authors: RAJCA A.
Published: May 2016

The title tetraanion salt (VII) is generated (from tetraether (VI) prepared as given in the scheme; no yields given) and examined by 1H, 13C, 13C DEPT, and 7Li NMR.
ChemInform Abstract: 1,4‐Naphthoquinones. Part 20. Droserone, Ethers, and Isomers from Juglone.
Authors: WURM G. , GERES U.
Published: May 2016

Starting with 1,5‐dihydroxynaphthalene (I), droserone (IX) and its regioisomer isodroserone (XVIIIb) are prepared as outlined in the reaction scheme.
ChemInform Abstract: Synthesis of the Mammalian Metabolites of Dibenz(a,j)anthracene: Dibenz(a,j)anthracene 3,4‐Oxide and (‐)‐(3R,4R)‐trans‐3,4‐Dihydroxy‐3,4‐dihydrodibenz(a,j)anthracene.
Authors: BOYD D. R. , O'KANE G. A.
Published: May 2016

The epoxide (III) is prepared as racemate from the ketone (I).
ChemInform Abstract: Exceptional Desulfonylation of β‐Epoxy Sulfonyl Containing 10‐Oxatricyclodecenones.
Authors: HOUWEN‐CLAASSEN A. A. M. , KLUNDER A. J. H. , ZWANENBURG B.
Published: May 2016

The 10‐oxatricyclodecenone‐fused tosylmethyl‐substituted oxirane (Ib) undergoes ring opening reaction and desulfonylation with sodium methoxide in boiling methanol to yield the stable dimethyl acetal (III), whereas the ethoxymethyl‐substituted analogue (Ia) does not react in this way.
ChemInform Abstract: N‐Protecting Group Dependent Aromatization of 3‐Pyrroline Systems to Pyrroles.
Authors: KO K.‐Y. , LEE K.‐I. , KIM J. H. , JUNG M. H. , KIM W.‐J.
Published: May 2016

It is interesting to note that the aromatized aldehyde (II) is formed instead of (III), when (I) is treated with DDQ or pyridinium dichromate.
ChemInform Abstract: The Reactions of Pindolol, Mepindolol, Carazolol, and Related Model Compounds with Triethyl Orthoformate: Pathways and Products of a New Colour Reaction.
Authors: PINDUR U. , WITZEL H.
Published: May 2016

4‐Methoxyindole (I) is formylated to give the indolyl‐3‐carbaldehyde (III) using either triethyl orthoformate (II) in the presence of an acid or Vilsmeier‐Haack conditions.
ChemInform Abstract: Diastereo‐ and Enantioselective Synthesis of α,α′‐Disubstituted Spiroacetals Using the SAMP‐/RAMP‐Hydrazone Method.
Authors: ENDERS D. , GATZWEILER W. , DEDERICHS E.
Published: May 2016

α,α'‐Disubstituted spiroacetals such as (VII) are synthesized with excellent enantiomeric excess in good overall yields from the sym. ketones (I) employing twofold alkylation of the SAMP‐hydrazone (III) and subsequent cyclization.
ChemInform Abstract: Reactions of ortho‐Quinones with Ethoxycarbonylmethylene(triphenyl)phosphorane. Trapping of the ortho‐Quinone Methanide Intermediates.
Authors: NICOLAIDES D. N. , ADAMOPOULOS S. G. , LEFKADITIS D. A. , LITINAS K. E.
Published: May 2016

Besides the expected coumarins (III) and (VI) the benzofurans (IV) and the open‐chain compounds (VII) and (VIII) are formed.
ChemInform Abstract: Addition of Nitroalkanes to ortho‐Halonitrobenzenes. A New Synthesis of 4‐Chloro‐7‐(trifluoromethyl)quinoline.
Authors: REID J. G. , RUNGE J. M. R.
Published: May 2016

The o‐chloronitrobenzene (I) reacts with nitroethane (II) in the presence of DBU to generate the salt (III) which is oxidized, yielding the acetophenone (IV).
ChemInform Abstract: Regioselectivity of Nitration of Thieno‐Fused Quinoline and Isoquinoline Derivatives.
Authors: SZABO K. J. , TIMARI G. , GRONOWITZ S.
Published: May 2016

Theoretical MNDO calculations are performed for sigma complexes occurring in nitration reactions of title compounds (see foregoing ref.) to interprete the selectivities observed.
ChemInform Abstract: Photochemical and Thermal Oxidations of 1‐Methylthianthrene.
Authors: LEE H. J. , KIM K.
Published: May 2016

Differences between photo‐ and thermal oxidation reactions lie in the formation of sulfone (II).
ChemInform Abstract: Synthesis of Pyrido(2,3‐d)pyrimidine‐2,4‐diones from Pyrimido(4,5‐e)‐1,2,4‐triazine‐6,8‐diones by Inverse Azadiene Reaction.
Authors: SHORSHNEV S. V. , ESIPOV S. E. , CHERNYSHEV A. I. , POZHARSKII A. F. , KUZ'MENKO V. V. , GULEVSKAYA A. V.
Published: May 2016

The pyrimido(4,5‐e)‐1,2,4‐triazinediones (II), of which (IIb) and (IIc) are prepared by oxidation of the corresponding xanthines (Ib) and (Ic), react with methyl vinyl ether (III), the ketones (V), or the enamine (VII) to give the pyridopyrimidinediones (IV) and (VI) respectively.
ChemInform Abstract: Novel Pyrido(1,2‐b)(1,2,4)triazines (V) from 1,6‐Diaminopyridines.
Authors: ATANASOV K. D. , LAFUENTE P. , QUINTEIRO M. , SEOANE C. , SOTO J. L.
Published: May 2016

Treatment of the known 1,6‐diamino‐2‐pyridones (III) with biacetyl (IV) affords the title compounds (V).
ChemInform Abstract: Imidazo(1,2‐e)(1,3,5)triazepine Derivatives: First Representatives of a New Heterocyclic System.
Authors: KAUPP G. , SAILER K.
Published: May 2016

Symmetrically substituted title compounds (IV) are obtained in a new one‐pot process with CH2Cl2 (III) surprisingly acting as a carbon donor.
ChemInform Abstract: Chemistry of Phosphorus. Part 202. Hepta‐tert.‐butylnonaphosphane(7), P9(tBu)7, and Octa‐tert.‐butyldecaphosphane(8), P10(tBu)8 ‐ Preparation and Structure Determination by 31P‐NMR Spectroscopy.
Authors: BAUDLER M. , SCHNALKE M. , WIATEREK CH.
Published: May 2016

By dehalogenation of the phosphane (I) with Mg in the presence of white phosphorus the title compounds (III) and (IV) are obtained, which represent the first bicyclophosphanes PnRn‐2 with n > 8. They are structurally homologues of P8(tBu)6, in which two tert.‐butylsubstituted P4 rings are linked through a σ‐bond.
ChemInform Abstract: Coordination Compounds with Biomimetic N2S2 and N4S2 Ligands: Synthesis and Spectral Studies on Divalent Transition Metal Complexes of Benzildithiosemicarbazone and ‐thiocarbohydrazone.
Authors: KRISHNA A. , REDDY K. H. , REDDY D. V.
Published: May 2016

Preformed benzildithiosemicarbazone reacts with metal salts to give the complexes (III).
ChemInform Abstract: Claisen Rearrangement of Organotin Compounds.
Authors: RITTER K.
Published: May 2016

Two modifications of the Claisen rearrangement are applied to various oxyalkenylstannanes, e.g. (I), (IV), or (XI).
ChemInform Abstract: Chemistry of Polynuclear Metal Complexes with Bridging Carbene or Carbyne Ligands. Part 101. Synthesis of the Compounds (WPt(μ‐CC6H4Me‐4)(.mu±sigma.:ηx‐C2BnHn‐1Me2)(CO)2(PMe2Ph)2) (x = 5, n = 9; x = 6, n = 10); Crystal Structures of an Isomer of Each Complex.
Authors: CARR N. , GIMENO M. C. , STONE F. G. A.
Published: May 2016

The carbyne complex (I) containing the 12‐vertex WC2B9 group reacts with the Pt complex (II) in acetone to afford the two isomers (III) (space group P21/c, Z=2) and (IV) and a small amount of the salt (V).
ChemInform Abstract: Development of New Technetium Cores Containing Technetium‐Nitrogen Multiple Bonds. Synthesis and Characterization of Some Diazenido‐, Hydrazido‐ and Imido‐Complexes of Technetium.
Authors: ARCHER C. M. , DILWORTH J. R. , JOBANPUTRA P. , THOMPSON R. M. , MCPARTLIN M. , POVEY D. C. , SMITH G. W. , KELLY J. D.
Published: May 2016

The title complexes containing novel Tc cores with chemically robust Tc‐N bonds in combination with appropriate ancillary ligands to control biological targeting characteristics offer a whole new range of possibilities for the development of technetium‐based diagnostic agents in nuclear medicine.
ChemInform Abstract: Redox‐Active Cavitand Host Molecules Containing Multiple Ferrocenyl Redox Centers: Syntheses, Crystal Structure, Molecular Mechanics Calculations, and Electrochemical Properties.
Authors: BEER P. D. , TITE E. L. , DREW M. G. B. , IBBOTSON A.
Published: May 2016

The first example of a rigid redox‐active host molecule is (V).
ChemInform Abstract: Synthesis, Structure, and Reactivity of the Nickel(II) Complex of 7‐Aza‐1,4‐dithiacyclononane.
Authors: MCAULEY A. , SUBRAMANIAN S.
Published: May 2016

The lacking member (VII) in the series of triazacyclononane to trithiacyclononane is prepared.
ChemInform Abstract: A Novel Copper(II) Complex Containing the Ligand 1,2‐Bis(2,2′‐bipyridyl‐6‐yl)ethane: Structural, Magnetic, Redox, and Spectral Properties.
Authors: GARBER T. , VAN WALLENDAEL S. , RILLEMA D. P. , KIRK M. , HATFIELD W. E. , WELCH J. H. , SINGH P.
Published: May 2016

The preparation of the ligand (V) follows a known procedure.
ChemInform Abstract: Reaction of THF·BH3 with H2Ru4(CO)13 and H4Ru4(CO)12; Preparation and Structure of the Tetraruthenium “Butterfly” Cluster HRu4(CO)12BH2.
Authors: HONG F.‐E. , MCCARTHY D. A. , WHITE J. P. III , COTTRELL C. E. , SHORE S. G.
Published: May 2016

Starting with H2Ru4(CO)13 only a small amount of the butterfly cluster (III) (space group Cm, Z=2) is obtained besides (I); however, (I) leads to 60% of (III) in addition to a Ru carbide cluster and unidentified products.
ChemInform Abstract: Mixed Sulfur and Phosphorus Ylide Complexes of Palladium Formed by Phase‐Transfer Catalysis. X‐Ray Crystal Structure of (Pd((CH2)2S(O)Me)(Ph2PCH2PPh2CHC(O)Ph))I·CH2Cl2·H2O.
Authors: LIN I. J. B. , SHY H. C. , LIU C. W. , LIU L.‐K. , YEH S.‐K.
Published: May 2016

The phase‐transfer technique is an easy method to prepare ylide complexes (IV) or (VII) from readily accessible starting materials.
ChemInform Abstract: Synthesis, Structure, and Facile Oxidation of a Novel 1,1′‐Bis(N,N‐dimethylaminomethyl)ferrocene‐Bridged Diplatinum Complex.
Authors: HEADFORD C. E. L. , MASON R. , RANATUNGE‐BANDARAGE P. R. , ROBINSON B. H. , SIMPSON J.
Published: May 2016

1,1'‐Bis(dimethylaminomethyl)ferrocene (I) and the platinum dimethyl sulfoxide complex (II) undergo substitution reaction in acetone to yield the diplatinum complex (III) which is cyclized in refluxing methanol to produce the cyclometalated diplatinum complex (IV).
ChemInform Abstract: Syntheses with Nitriles. Part 87. Chromoionophores by Addition of N‐Phenyl(aza‐15‐crown‐5) (II) to Reactive Dicyanomethylene Compounds.
Authors: JUNEK H. , KLADE M. , BIZA P. , GERINGER M. , STERK H.
Published: May 2016

The addition reaction leads to the colorless malonitriles (III) and (VI), respectively.
ChemInform Abstract: Macrocyclic Tetranuclear Clusters with 28‐, 32‐, 36‐, 40‐, and 44‐Membered Rings as High‐Potential Iron‐Sulfur Protein Analogues.
Authors: TOMOHIRO T. , UOTO K. , OKUNO H.
Published: May 2016

A new series of Fe4S4 clusters (V) (62‐86% yield), active‐site analogues for Fe‐S proteins, are prepared as outlined for the example (Va).
ChemInform Abstract: Short and Efficient Synthesis of Statine and Isostatine Derivatives.
Authors: KESSLER H. , SCHUDOK M.
Published: May 2016

The N‐Fmoc‐protected derivatives (I) of (L)‐amino acids are converted to the acid chlorides (II) and then coupled with lithium tert‐butoxycarbonylmethanide (III) to give the β‐keto esters (IV).
ChemInform Abstract: A Regioselective Diels‐Alder Synthesis of Ellipticine.
Authors: DAVIS D. A. , GRIBBLE G. W.
Published: May 2016

The furoindole (I) reacts with the heterocyclic enones (II) to form the cycloadducts (III).
ChemInform Abstract: Synthesis of Vinca Alkaloids and Related Compounds. Part 44. Synthesis of Trifluoroapovincaminic Acid Ester.
Authors: INCZE M. , SOTI F. , KARDOS‐BALOGH Z. , KAJTAR‐PEREDY M. , SZANTAY C.
Published: May 2016

Coupling of the 6,6,6‐trifluoro‐4‐formylhexanoate (V), prepared as outlined in the reaction scheme, with tryptamine (VI) is followed by cyclocondensation, forming the indoloquinolizinones (VII) and (VIII).
ChemInform Abstract: The Total Synthesis of (+)‐Ionomycin.
Authors: HANESSIAN S. , COOKE N. G. , DEHOFF B. , SAKITO Y.
Published: May 2016

The calcium complex (XVI) of the title polyether antibiotic is synthesized via aldol coupling of the fragments (VII) and (XIV).
ChemInform Abstract: General Methodology for the Synthesis of Neocarzinostatin Chromophore Analogues: Intramolecular Chromium‐Mediated Closures for Strained‐Ring Synthesis.
Authors: WENDER P. A. , MCKINNEY J. A. , MUKAI C.
Published: May 2016

Neocarzinostatin (NCS), an antitumor antibiotic, is used for the treatment of pancreatic cancer and leukemia.
ChemInform Abstract: Potential Antimalarials. Part 11. 4′‐Chloro‐3‐(substituted amino)‐methyl‐5‐(7‐trifluoromethyl‐quinolin‐4‐ylamino)biphenyl‐2‐ols.
Authors: BARLIN G. B. , JIRAVINYU C.
Published: May 2016

Mannich reaction of the known biphenyl (I) (synthesis briefly described) with eight amines such as (III) leads to (IV) (in good yield), which after reduction of the nitro group are condensed with chloroquinoline (V) to give title compounds (VI) (Tebuquine analogues) (all yields in g).
ChemInform Abstract: Coumarins
Authors: MURRAY R. D. H.
Published: May 2016

Review: (486 refs.
ChemInform Abstract: Short‐Wavelength Spectral Response Properties of Semiconductor/Liquid Junctions.
Authors: KUMAR A. , LEWIS N. S.
Published: May 2016

Photocurrent quantum yields are measured in the wavelength range 200‐600 nm for semiconductor/liquid, semiconductor/metal, and semiconductor/insulator/metal junctions.
ChemInform Abstract: Symmetry Reduction and Magnetic Ordering in the Defect α‐GdSi2‐Type Compound TbSix, 1.75 ≤ x < 1.85.
Authors: SCHOBINGER‐PAPAMANTELLOS P. , JANSSEN T. , DE MOOIJ D. B. , BUSCHOW K. H. J.
Published: May 2016

Samples of TbSix are prepared in the composition range 1.70 ≤ x ≤ 1.85 by arc‐melting of the elements in argon atmosphere.
ChemInform Abstract: Interaction of Carbon Dioxide with Clean and Oxidized Nd/Cu(100).
Authors: NIX R. M. , LAMBERT R. M.
Published: May 2016

It is found that CO2 adsorbs strongly on metallic Nd overlayers on Cu(100).
ChemInform Abstract: Microcalorimetric Study of the Acidity and Basicity of Metal Oxide Surfaces.
Authors: AUROUX A. , GERVASINI A.
Published: May 2016

The adsorption of NH3 and CO2 on 19 simple metal oxides (Al, Be, Ca, Mg, Zn, Cr, Ga, La, Nd, Pr, Nb, Mo, W, V, Th, Si, Ta, Ti, Zr) are studied by microcalorimetry in order to determine the number and nature of basic and acidic surface sites.
ChemInform Abstract: Influences of CO on Hydrogenation for Amorphous LaNi5 Films and on Hydrogen Separation Using These Films.
Authors: SAKAGUCHI H. , ADACHI G.
Published: May 2016

The hydrogen absorption capacity of thin amorphous LaNi5 films is found to be decreased by about 30% after exposure to H2‐CO gas.
ChemInform Abstract: Synthesis and Structure of Some New Lamellar Phases: The Graphite‐Rubidium‐Arsenic Ternaries.
Authors: ASSOUIK J. , LAGRANGE P.
Published: May 2016

Binary Rb‐As alloys with As concentrations in the range 18‐55 at.% are found to react with graphite at 610‐640 °C to form new lamellar intercalation compounds such as RbAs0.5C4, Rb0.7As0.9C8, and RbAsC8.
ChemInform Abstract: Preparation and Characterization of Tetraphenylphosphonium and Tetraphenylarsonium Halogenoargentates(I), Including a New Iodoargentate(I) Cluster, (Ag4I8)4‐, Containing Three‐ and Four‐Coordinated Silver(I).
Authors: HELGESSON G. , JAGNER S.
Published: May 2016

The isostructural compounds (IV) containing the new (Ag4I8)4‐ cluster anion crystallize in the triclinic space group P1 with Z=1.
ChemInform Abstract: nJ(29Si‐13C) Coupling Constants and 13/12C Isotope Shifts in 29Si NMR Spectra of Ethynylsilanes.
Authors: LIEPINS E. , BIRGELE I. , LUKEVICS E. , BOGORADOVSKII E. T. , ZAVGORODNII V. S.
Published: May 2016

The examination of 22 title compounds such as (I) shows that there is a linear correlation between the isotope shifts and coupling constants.
ChemInform Abstract: Strain, Orbital Interaction, and Conformation of Propella(34)prismane and Its Precursor Diolefin. Analysis of Orbital Interactions in Cycloocta‐1,5‐diene and Cyclodeca‐1,6‐diene with AM1 MO Method.
Authors: OSAWA E. , RUDZINSKI J. M. , XUN Y.‐M.
Published: May 2016

To get insight into the factors influencing the successful intramolecular (2 + 2) photochemical ring closure reaction of (I) to give (II) (recently reported), though its lower homologue (III) does not at all undergo such a reaction, a range of calculations is performed on all compounds (I)‐(IX).
ChemInform Abstract: Upon the Hydrogen‐Bonding Ability of the H4 and H5 Protons of the Imidazolium Cation.
Authors: ABDUL‐SADA A. K. , AL‐JUAID S. , GREENWAY A. M. , HITCHCOCK P. B. , HOWELLS M. J. , SEDDON K. R. , WELTON T.
Published: May 2016

The crystal and molecular structures of (Ia), (Ib), and (Ic) (all space group P21/c with Z=4) all contain evidence that the H(4) and H(5) protons of the imidazolium cation enter into hydrogen bonds; the implications of this observation for the interactions in room‐temp.
ChemInform Abstract: (R,R)‐2,3‐Butanediol and (s)‐Pinanediol Allylboronates in Chiral Synthesis of (2S,3S)‐3‐Methyl‐5‐hexen‐2‐ol.
Authors: MATTESON D. S. , CAMPBELL J. D.
Published: May 2016

Pinanediol methoxyboronate (I) is treated with allylmagnesium bromide (II), yielding the corresponding allyl boronate (III).
ChemInform Abstract: Stereoselective Conjugate Addition of TMSI‐Activated Butylcopper to 1‐(R)‐endo‐(1‐Naphthyl)bornyl Crotonate.
Authors: BERGDAHL M. , NILSSON M. , OLSSON T.
Published: May 2016

At ‐60 °C the compound (S)‐(III) is formed.
ChemInform Abstract: Reaction of Carbonyl Compounds with Ethyl Lithiodiazoacetate. Studies Dealing with the Rhodium(II)‐Catalyzed Behavior of the Resulting Adducts.
Authors: PADWA A. , KULKARNI Y. S. , ZHANG Z.
Published: May 2016

The 2‐diazo‐4‐phthalimidobutyrate (V), prepared as outlined in the reaction scheme, is converted into the carbenoid intermediate (VI) upon treatment with catalytic amounts of rhodium(II) octanoate.
ChemInform Abstract: Synthesis of Cyclic α‐Amino Acids Through Ring Closure of Glycine‐Derived Free Radicals.
Authors: ESCH P. M. , HIEMSTRA H. , SPECKAMP W. N.
Published: May 2016

The carbamates (I) are converted to the phenyl thioethers (VI) which react with tri‐n‐butylstannane in the presence of AIBN as the catalyst to give cyclic amines in most cases as outlined in the reaction scheme.
ChemInform Abstract: Stereoselective Formation of Allylic Sulfides via Two Sequential (3,3)Sigmatropic Rearrangements of Allylic Xanthates and Its Mechanistic Aspects.
Authors: HARANO K. , OHIZUMI N. , MISAKA K. , YAMASHIRO S. , HISANO T.
Published: May 2016

Pyrolysis of allylic xanthates such as (I) forms the dithiocarbonates (II) as intermediates via (3,3)sigmatropic rearrangement.
ChemInform Abstract: Side‐Chain Reactivity of Aromatic Radical Cations.
Authors: BACIOCCHI E.
Published: May 2016

One‐electron oxidation with subsequent deprotonation of (I) indicates that the effect of substituent on the rate ratio of proton loss from the p‐ or m‐position decreases in the order shown.
ChemInform Abstract: Effect of a Proximate Phenyl Ring on Additions to Bridged Ketones.
Authors: PEERAN M. , WILT J. W. , TUFANO M. D. , SUBRAMANIAN R. , CRUMRINE D. S.
Published: May 2016

The tricyclic ketones (II) and (V) react with the Wittig reagent derived from the phosphonium salt (III) to give the corresponding alkenes (IV) and (VI).
ChemInform Abstract: C4O2 (1,2,3‐Butatriene‐1,4‐dione), the First Dioxide of Carbon with an Even Number of C Atoms.
Authors: MAIER G. , REISENAUER H. P. , BALLI H. , BRANDT W. , JANOSCHEK R.
Published: May 2016

Photolysis of the diazoketones (III) and (VI) in argon matrix at 254 nm generates the title compound (IV) (stable under matrix conditions) which is readily cleaved photochemically (> 300 nm) into C3O (VII) + CO.
ChemInform Abstract: Oxidation of 2‐Chloroethyl Sulfides to Sulfoxides by Dimethyl Sulfoxide.
Authors: HSU F.‐L. , SZAFRANIEC L. L. , BEAUDRY W. T. , YANG Y.‐C.
Published: May 2016

2‐Chloroethyl sulfides such as (I) are oxidized with DMSO, forming the sulfoxides (III) and (IV).
ChemInform Abstract: Electrochemical Investigations on Nitro‐Substituted Hydrazono Compounds.
Authors: JAIN R. , AGARWAL D. D. , SHRIVASTAVA R. K.
Published: May 2016

The electrochemical behavior of title compound (III) is examined using different methods such as polarography and cyclic voltammetry.
ChemInform Abstract: Amidines. Part 1. Hydrolysis of N1‐Acyl‐ and N1‐Tosyl‐N1,N2‐diarylamidines.
Authors: ONO M. , TAMURA S.
Published: May 2016

Acidic hydrolysis of the N‐acylamidines (III), prepared by coupling of the diarylamidines (II) with benzoyl chloride (I), leads to the formation of the amides (IV) and (V), the urea (VIa), and the anilines (VII).
ChemInform Abstract: Synthesis and Properties of Cyclopropanated 2,2′‐Binaphthoquinones.
Authors: LAATSCH H.
Published: May 2016

Some title compounds are prepared by addition of diazomethane to the binaphthoquinone (I).
ChemInform Abstract: Transmission of Polar Effects. Part 20. Ionisation and Esterification, with Diazodiphenylmethane, of a Series of 8‐(2‐Substituted Phenyl)‐1‐naphthoic and 2‐ and 4‐(8‐Substituted 1‐Naphthyl)benzoic Acids.
Authors: BOWDEN K. , GHADIR K. D. F.
Published: May 2016

The reactivity of the novel acid systems (I), (II), and (III) is assessed by measurements of their pKa‐values (in 80% (w/w) Me‐O‐(CH2)2‐OH/H2O at 25 °C) and their rates of esterification with diazodiphenylmethane (IV) to give, e.g., esters (V).
ChemInform Abstract: Nonconventional Friedel‐Crafts Chemistry. Part 1. Reaction of α‐Tetralone and Anthrone with Arenes Under Friedel‐Crafts Conditions.
Authors: EL‐ZOHRY M. F. , EL‐KHAWAGA A. M.
Published: May 2016

AlCl3‐catalyzed reaction of the tetralone (II) and the anthrone (IV) with the arenes (I) yields the arylation products (III) and (V).
ChemInform Abstract: Reaction of 2‐Substituted 5,5‐Dimethyl‐4‐oxo‐1‐pyrroline 1‐Oxides with Nucleophilic Reagents and Synthesis of Pyrrolidine‐Derived Nitroxyl Radicals.
Authors: REZNIKOV V. A. , VOLODARSKII L. B.
Published: May 2016

The pyrroline oxides (I) are coupled with hydrazine (IIa) or the hydroxylamines (IIb) and (IIc) to give the hydrazones (IIIa) and (IIIb) or the oximes (IIIc) and (IIId).
ChemInform Abstract: Studies in Spiroheterocycles. Part 25. Synthesis of New Fluorine‐Containing 3′‐Phenylspiro(3H‐indole‐3,2′‐thiazolidine)‐2,4′(1H)‐diones and Novel (2,3‐Dihydro‐2‐oxo‐3‐phenylamino‐1H‐indol‐3‐ylthio)ethanoic Acid as Antibacterial Agents.
Authors: JOSHI K. C. , DANDIA A. , BHAGAT S.
Published: May 2016

The spiro compounds (IV) and (VII) can be obtained in quantitative yield at room temp. under the conditions shown, i.e. with excess mercaptoacetic acid and a prolonged reaction time.
ChemInform Abstract: Mercury(II)‐Mediated Heterocyclization of 2‐Cyclohex‐2′‐enyl‐N‐methylaniline.
Authors: MAJUMDAR K. C. , DE R. N. , SAHA S.
Published: May 2016

The ortho‐cyclohexenylaniline (I) is treated with mercuric acetate in the presence of the alcohols (II) to form the tetrahydrocarbazoles (III).
ChemInform Abstract: Diphenylphosphinoyl‐Substituted Ylides. Part 1. Thermal 1,3‐Dipolar Cycloaddition of α‐(Diphenylphosphinoyl)glycine Ester Imines. Dipole Formation as the Rate‐Determining Step.
Authors: VAN ES J. J. G. S. , JAARSVELD K. , VAN DER GEN A.
Published: May 2016

The phosphine oxide (I) is coupled with the chloroformates (II) to produce the corresponding esters (III).
ChemInform Abstract: Synthesis, X‐Ray Structural Analysis, and Photochemistry of Novel syn‐Periplanar Bisazo‐Skeletons.
Authors: BECKMANN E. , BAHR N. , PRINZBACH H.
Published: May 2016

The tetraacetyldimethylcyclohexene (I) reacts with hydrazine (II) to form the hydrazone (III) which is converted to the cleavage product (IV) upon drying in vacuo.
ChemInform Abstract: A Synthesis of Methylated Epoxyhydroazulenones by Intramolecular (4 + 3) Cycloaddition of an Oxyallyl Intermediate, Generated from 1,1‐Dichloro‐6‐(3‐methyl‐2‐furyl)hexan‐2‐one.
Authors: KAISER R. , FOEHLISCH B. +
Published: May 2016

The azulenones (VI) and (VII) are prepared starting from pentenynol (I).
ChemInform Abstract: Enantiomeric Synthesis of endo‐Substituted Tetrahydropyrans.
Authors: MARTIN V. S. , NUNEZ M. T. , RAMIREZ M. A. , SOLER M. S.
Published: May 2016

Starting with the butanediol monotetrahydropyranyl ether (I), the allyl alcohol (IV) is synthesized.
ChemInform Abstract: Dithiocarboxylation of Acylated Halopyridines.
Authors: DUNN A. D. , NORRIE R.
Published: May 2016

The title reaction is carried out by treatment of the corresponding pyridines with CS2 and MeI to give (IV) and (VII)‐(IX).
ChemInform Abstract: Reaction of Aromatic N‐Oxides with Dipolarophiles. Part 14. Inverse‐Type Cycloaddition of Pyridine N‐Oxides with 1,4‐Epoxy‐1,4‐dihydronaphthalene and Its Mechanistic Aspects.
Authors: HISANO T. , HARANO K. , MATSUOKA T. , SUZUKI T. , MURAYAMA Y.
Published: May 2016

(1,3)Dipolar cycloaddition reaction of the pyridine N‐oxides (I) with the epoxydihydronaphthalene (II) mentioned in the title leads to the formation of the furopyridines (V) via 1,5‐sigmatropic rearrangement of the primary cycloadduct (III).
ChemInform Abstract: Novel Pyrrole Derivatives. Part 3. Preparation of 4‐Amino‐6‐methylthio‐7H‐pyrrolo(2,3‐d)pyrimidine‐5‐carbonitriles.
Authors: PECH R. , BOEHM R. + , HENKEL L.
Published: May 2016

Chlorination of the pyrimidines (I) at C‐4 with POCl3 under the conditions shown causes concomitant dehydration of the amide group.
ChemInform Abstract: Synthesis of 1‐Acyl‐ and 1‐(Thioacyl)‐4‐benzylpiperazines as Potential Antidepressants.
Authors: KMONICEK V. , SVATEK E. , HOLUBEK J. , RYSKA M. , VALCHAR M. , PROTIVA M.
Published: May 2016

Some title compounds (12 examples) are prepared for pharmacological screening.
ChemInform Abstract: 2‐Aza‐1,3‐dienes. Part 6. “tert.‐Amino Effect” on Acidic Treatment of (Pyrrolidin‐1‐yl)azadienes.
Authors: LEGROUX D. , BROM J. , FLEURY J. P.
Published: May 2016

The title compounds (III) and (V) furnish, by a (1,5)‐H shift, the heterocyclic systems (IV) and (VI), resp.; the latter loose HCN spontaneously to give (VII).
ChemInform Abstract: Organoboranes. Part 52. The Successful Ring Enlargement of Boracyclanes via Sequential One‐Carbon Homologation: The First Synthesis of Boracyclanes in the Strained Medium‐Ring Range.
Authors: BROWN H. C. , PHADKE A. S. , RANGAISHENVI M. V.
Published: May 2016

One‐carbon ring expansion of the B‐methoxyboracyclanes (I) is achieved by reaction with chloromethyllithium (II) generated in situ.
ChemInform Abstract: A 1,6‐Diphospha‐1,2,4,5‐hexatetraene, Synthesis and Ring Closure Reactions to Cyclobutenes.
Authors: MAERKL G. + , KREITMEIER P. , NOETH H. + , POLBORN K.
Published: May 2016

By oxidative coupling of a lithiated allene, obtained from (I), the title compound (II) is formed in several stereoisomeric forms together with the yellow unsym. cyclobutene derivative (III) (space group P21/c, Z=4) and the red compound (IV).
ChemInform Abstract: 2‐Mercapto‐(1H)‐1,3,2λ5‐benzodiazaphosphorine‐2,4‐dithiones. Part 1. Synthesis and Spectral Studies.
Authors: SHINDE B. R. , SHENOY S. J. , PAI N. R.
Published: May 2016

A series of substituted anthranilamides (cf.
ChemInform Abstract: Reaction of the Diisopropylaminochlorophosphenium Cation with Crotonaldehyde Dimethylhydrazone and Acetone Azine.
Authors: ARIF A. M. , COWLEY A. H. , KREN R. M. , WESTMORELAND D. L.
Published: May 2016

Reaction of the phosphenium salt (I) with crotonaldehyde dimethylhydrazone (II) gives the cyclic phosphine oxide (III) as a aluminum trichloride complex.
ChemInform Abstract: Dicoordinated Organo‐Arsenic Derivatives. Synthesis and Characterization of New Arsenium Cations with the Linkage N‐As‐N.
Authors: PAYRASTRE C. , MADAULE Y. , WOLF J. G.
Published: May 2016

N,N'‐Diethylethylenediamine (I) reacts with butyllithium (II) to give the salt (III) which is cyclized with arsenic trichloride (IV) to produce the chlorodiazarsolidine (V).
ChemInform Abstract: Germanium‐Carbon versus Germanium‐Nitrogen Double‐Bond Formation in the Reactions Between Germylenes and Diazo Compounds.
Authors: GLIDEWELL C.
Published: May 2016

The reactions between methyldiazoacetate (II) and a range of germylenes (8 examples) such as (I) and (V) are studied using MNDO calculations.
ChemInform Abstract: Surprising Basicity of Low Valent Transition‐Metal Carbonyl Fluoride Complexes. Crystallographic Characterization of an sp2‐CH···F Hydrogen Bond.
Authors: OSTERBERG C. E. , KING M. A. , ARIF A. M. , RICHMOND T. G.
Published: May 2016

The two W(II) complexes (III) and (VI) are surprisingly strong Lewis bases.
ChemInform Abstract: Transition Metal‐Substituted Diphosphenes. Part 19. Reactivity of Disilylphosphido Iron Complexes Towards 2,4,6‐(CF3)3C6H2PCl2 and 2,6‐(CF3)2C6H3PCl2. Diphosphenyl Complexes with Fluoroaryl Substituents.
Authors: WEBER L. , SCHUMANN H. , BOESE R.
Published: May 2016

Equimolar reaction of the Fe complex (I) with the title phosphanes (II) results in the formation of the thermolabile, NMR spectroscopically identified diphosphenyl complexes (III).
ChemInform Abstract: Synthesis and Structural Characterization of Transition‐Metal Sulfide Clusters with Cp*Mo (Cp*: C5Me5), CuCl and Fe(NO) Units.
Authors: BRUNNER H. , GRASSL R. , WACHTER J. , NUBER B. , ZIEGLER M. L.
Published: May 2016

The reaction of the isomeric Mo2S4 complexes (I), (V), and (VII) with CuCl (II) leads to expansion of the Mo‐S skeleton and formation of the polynuclear clusters (III), (IV) (space group C2/c, Z = 8), (VI), and (VIII) according to the scheme.
ChemInform Abstract: Synthesis and Molecular Structure of cis‐(Pd(C6F5)2(C6H5CH2NMe2)), an Intramolecular Coordination Compound Containing an Unusual η1‐Arene Ligand.
Authors: FALVELLO L. R. , FORNIES J. , NAVARRO R. , SICILIA V. , TOMAS M.
Published: May 2016

The reaction of the Pd complex (I) with benzyldimethylamine (II) does not lead to an ortho‐palladated complex.
ChemInform Abstract: Synthesis and Characterization of a New Family of Luminescent cis‐(4,4′‐X2‐5,5′‐Y2‐2,2′‐bipyridine)2Os(CO)Cl(PF6) Complexes (X: NEt2, OMe, Me, H, Cl, Y: H; X: H, Y: Me; X=Y: Me): Control of Excited‐State Properties by Bipyridyl Substituents.
Authors: DELLA CIANA L. , DRESSICK W. J. , SANDRINI D. , MAESTRI M. , CIANO M.
Published: May 2016

The syntheses of the title complexes (V) are accomplished by straightforward adaption of the literature methods with one exception, (X), which is prepared via an intermediate phosphine complex (VIII).
ChemInform Abstract: Cationic Cyclization of Regular α‐Monoterpenols as a Model for Tri‐ and Tetracyclic Diterpene Biosynthesis.
Authors: VESELOVSKII V. V. , DRAGAN V. A. , MOISEENKOV A. M.
Published: May 2016

α‐Geraniol (I), α‐linalool (V), and α‐nerol (VI) are treated with boron trifluoride etherate at a low temperature to give mixtures of the cyclization products (II) ‐ (IV).
ChemInform Abstract: The Synthesis of a 1α,2α,3α‐Triacetoxy Limonoid.
Authors: KEHRLI A. R. H. , TAYLOR D. A. H. , NIVEN M.
Published: May 2016

Starting from 7‐epi‐gedunin (I) the title compound (VI) is prepared.
ChemInform Abstract: Metalloporphyrin‐Promoted Rearrangement of 2‐Alkyloxaziridines.
Authors: SUDA K. , UMEHARA T. , HINO F.
Published: May 2016

Chloro(tetraphenylporphin)manganese is shown to be an effective catalyst for the isomerization of oxaziridines such as (I), forming the corresponding amides (II).
ChemInform Abstract: Purines. Part 38. A General Synthesis of 7,9‐Dialkyladeninium Salts from 9‐Alkyladenines by Regioselective Alkylation: Utilization of an N6‐Alkoxy Group as a Control Synthon.
Authors: FUJII T. , SAITO T. , SAKUMA T. , MINAMI M. , INOUE I.
Published: May 2016

The 6‐alkoxyamino‐9‐alkyladenines (I) are treated with the halides (II) to give the alkylation products (III) and (IV).
ChemInform Abstract: Stereospecific Vorbrueggen‐Like Reactions of 1,2‐Anhydro Sugars. An Alternative Route to the Synthesis of Nucleosides.
Authors: CHOW K. , DANISHEFSKY S.
Published: May 2016

The galactal (I) is regioselectively converted into the anhydro sugar (II) by oxidation with dimethyldioxirane.
ChemInform Abstract: Hydrogenobyrinic Acid (Ia): Isolation, Biosynthesis, and Function.
Authors: BLANCHE F. , THIBAUT D. , FRECHET D. , VUILHORGNE M. , CROUZET J. , CAMERON B. , HLINENY K. , TRAUB‐EBERHARD U. , ZBORON M. , MUELLER G. +
Published: May 2016

The cobalt‐free analogue (Ia) of the vitamin‐B12 parent substance cobyrinic acid (Ib) is isolated from Pseudomonas denitrificans SC 510. This opens up new possibilities for studies on the biosynthesis of both (Ia) and (Ib) as well as on their chemistry.
ChemInform Abstract: Structure of Trisodium Hydrogenorthosilicate Monohydrate.
Authors: SCHMID R. L. , FELSCHE J.
Published: May 2016

Single crystals of Na3(SiO3(OH))·H2O are synthesized from aqueous solutions containing Na2O, SiO2, and H2O at 338 K. The crystal structure of this hydrate phase (P21/c, Z=4) is built up of H‐bonded (SiO3(OH))3‐ tetrahedra forming chains along the (010) direction.
ChemInform Abstract: Structure of Barium Copper Pyrosilicate at 300 K.
Authors: JANCZAK J. , KUBIAK R. , GLOWIAK T.
Published: May 2016

BaCu2Si2O7, obtained by reaction of YBa2Cu3O7‐x and SiO2 in the presence of Bi2O3 (quartz ampoule; 1073 K, 1 d), belongs to the orthorhombic space group Pnma with Z=4.
ChemInform Abstract: Mechanism of Electroreduction of Oxygen on Thin Co3O4 and NiCo2O4 Films.
Authors: SINGH R. N. , TIWARI S. K. , CHARTIER P.
Published: May 2016

O2 reduction on thin Co3O4 and NiCo2O4 films, obtained on a Ti support by the chemical spray pyrolysis technique, is investigated in alkaline (KOH) medium by evaluation of steady‐state cathodic polarization curves.
ChemInform Abstract: Chemical Reactions in Gas Discharges. Part 2. Formation of Halogenosiloxanes by Reaction of SiX4 (X: Cl, Br) with Oxygen.
Authors: KORNICK A. , BINNEWIES M.
Published: May 2016

The reactions of SiCl4 and SiBr4 with O2 (important for the industrial fabrication of optical waveguides) is studied in a glow discharge at 1000‐1100 °C by means of mass spectrometry.
ChemInform Abstract: The First Quinquinary Oxotellurate(VI), K3Na2LiTeO6,
Authors: WISSER TH. , HOPPE R.
Published: May 2016

is prepared by annealing of the corresponding binary oxides in sealed Ag tubes (K2O:Na2O:Li2O:TeO3 = 3:2:1:2; 720 °C, 40 d).
ChemInform Abstract: Syntheses and Structure Analyses of Iodocuprates(I). Part 11. Crystal Structure of Tl4Cu2I6.
Authors: HOYER M. , HARTL H.
Published: May 2016

The title cuprate, prepared by crystallization from a TlI‐CuI melt or by hydrothermal synthesis in conc.
ChemInform Abstract: Intramolecular Catalysis in the Enolisation Reactions of 4‐Oxoheptanedioic Acid (I) and Its Monoethyl Ester
Authors: COX B. G. , DE MARIA P.
Published: May 2016

(studied by measurements of the rates of iodination (= rates of enolisation) in dil.
ChemInform Abstract: Allylsilanes in Organic Synthesis. An Approach to the Stereoselective Synthesis of Units for Natural Product Synthesis.
Authors: MURPHY P. J. , PROCTER G.
Published: May 2016

Propargyl alcohol (I) is silylated and then oxidized to give the aldehyde (IV).
ChemInform Abstract: Stereoselective Cycloadditions of Chiral Acylnitroso Compounds. Synthetically Useful Reactions of the Adducts.
Authors: MILLER A. , PROCTER G.
Published: May 2016

The chiral hydroxamic acid (I) is dehydrogenated to generate the acyl nitroso intermediate (II) which undergoes cycloaddition reaction with the cyclic dienes (III), producing the bridged 1,2‐oxazines (IV).
ChemInform Abstract: The Effects of Zwitterionic Surfactant Systems Upon Aromatic Nucleophilic Substitution.
Authors: CIPICIANI A. , PRIMIERI S.
Published: May 2016

No influence on the hydroxydehalogenation of (I) is observed in the presence of zwitterionic N‐alkyl‐N,N‐dimethylglycine surfactants, whereas under the same conditions no analogous reaction occurs in the case of (III).
ChemInform Abstract: Ring‐Opening Reactions of Unsaturated Cyclopropanecarboxylic Acids by Pyridinium Chloride.
Authors: LORETO M. A. , PELLACANI L. , TARDELLA P. A.
Published: May 2016

When heated in molten pyridinium chloride, the cyclopropanecarboxylic acid (I) gives a ring‐opening reaction followed by dimerization and decarboxylation (→ (II)).
ChemInform Abstract: Synthesis of Isopropylidene Malonate‐Substituted Heterocyclic Ketene N‐Acetals.
Authors: HUANG Z.‐T. , SHI X.
Published: May 2016

The ketene S,S‐acetals (II) undergo cyclization with the α,ω‐diamines (I), with the mercaptoaniline (IV), or with the ω‐amino alcohols (VI) in the presence of sodium in dioxane to produce the heterocyclic ketene acetals (III), (V), or (VII).
ChemInform Abstract: Mechanism of Isomerization of 1,2,3,4‐Tetrahydroisoquinoline to 5,6,7,8‐Tetrahydroisoquinoline Over Raney Nickel.
Authors: OKAZAKI H. , ONISHI K. , IKEFUJI Y. , TAMURA R.
Published: May 2016

The title reaction is proposed to proceed via a series of consecutive steps of alternate dehydrogenation and hydrogenation.
ChemInform Abstract: Discrimination and Selective Reaction of Rotational Isomers of Jet‐Cooled Substituted Benzaldehydes as Studied by Sensitized Phosphorescence Excitation Spectroscopy.
Authors: YAMAMOTO S. , EBATA T. , ITO M.
Published: May 2016

The existence of syn and anti isomers of the non‐fluorescent benzaldehydes (I) is confirmed.
ChemInform Abstract: Photochemistry of Phosphate Esters: An Efficient Method for the Generation of Electrophiles.
Authors: GIVENS R. S. , MATUSZEWSKI B. , ATHEY P. S. , STONER M. R.
Published: May 2016

The photochemical cleavage of the phosphate esters (I) are examined in tert.‐butyl alcohol, which produces the corresponding benzyl tert.‐butyl ether (III) as the major solvolysis product upon direct irradiation.
ChemInform Abstract: Kinetics of the Reaction of p‐Dinitrobenzene with Cyanide in Dimethylformamide.
Authors: SAUER A. , WASGESTIAN F. , BARABASCH B.
Published: May 2016

In order to study the mechanism of substitution reactions of dinitrobenzene, the radical anion of type (III) postulated previously is observed in DMF.
ChemInform Abstract: One‐Pot, One‐ and Multi‐Carbon Homologation of Alkyl Halides. Reaction of Grignard Reagents with Chloroiodomethane.
Authors: HAHN R. C. , TOMPKINS J.
Published: May 2016

Allyl iodide (I) reacts with chloroiodomethane (II) and isopropylmagnesium chloride (III) to give a mixture of homoallyl iodide (IV) and minor amounts of isobutyl iodide (V).
ChemInform Abstract: Relative Acidity and Basicity of Amines in Tetrahydrofuran and the Influence of These Factors on the Carbonylation of Lithium Amides.
Authors: FURLONG J. J. P. , LEWKOWICZ E. S. , NUDELMAN N. S.
Published: May 2016

Basicity towards 2,4‐dinitrophenol, acidity and pKa values of sec. amines such as (I) are determined in THF.
ChemInform Abstract: A Convenient Preparative Method for Unsymmetrical Ketones and Aliphatic Aldehydes by Thermolysis of Homoallylic Alcohols.
Authors: INABA T. , SAKAMOTO M. , WATANABE S. , TAKAHASHI I. , FUJITA T.
Published: May 2016

The unsymmetrical aliphatic ketones (IV) are obtained by thermolysis of the homoallylic alcohols (III) which are synthesized as outlined in the reaction scheme.
ChemInform Abstract: Generation and Trapping of 1,5‐Dehydroquadricyclane.
Authors: KENNDOFF J. , POLBORN K. , SZEIMIES G.
Published: May 2016

Photoconversion of the norbornadienes (I) (syntheses described) into quadricyclanes (II) affords the educts to generate the title species (VII) by dehalogenation.
ChemInform Abstract: An Efficient Synthesis of (1S,2S)‐1‐Acetoxy‐1‐aryl‐3‐halo‐2‐phthalimidopropanes.
Authors: BOERNER A. , VOSS G.
Published: May 2016

The chiral 2‐amino‐1‐aryl‐1,3‐propanediols (I) are first N‐protected and then subjected to regioselective esterification with tosyl chloride (IV) to give the 3‐tosyl derivatives (V).
ChemInform Abstract: A Facile Dehydration and Beckmann Rearrangement of Oximes with Aluminum Iodide.
Authors: KONWAR D. , BORUAH R. C. , SANDHU J. S.
Published: May 2016

Dehydration of aldoximes (I) with aluminum triiodide forms the nitriles (II).
ChemInform Abstract: 1,2‐Addition of Sulfur Nucleophiles to the N‐Acylated Imine Linkage. A Model Study for the Incorporation of Sulfur Nucleophiles During Metabolism of Acylated Aromatic Amines.
Authors: CLARK W. M. , SWENTON J. S.
Published: May 2016

The acylated quinonimine acetal (I) reacts with ethanethiol (II), forming the adduct (III) which is converted into the thioether (IV) by acid‐catalyzed rearrangement.
ChemInform Abstract: Synthesis and 2‐D NMR Characterization of New Precursors of Electronically Conducting Polymeric Films: 1‐ and 2‐(2‐(1‐Adamantyl)‐2‐oxo‐ethoxy)naphthalenes.
Authors: EL MOUSTAFID T. , HEDAYATULLAH M. , SEBA H. B. , PIGENET C. , ANCIAN B.
Published: May 2016

The 2‐substituted naphthalene analogue is prepared analogously to the 1‐substituted compound (III).
ChemInform Abstract: Convenient Synthetic Sequence for the Preparation of Indanones.
Authors: SMONOU I. , ORFANOPOULOS M.
Published: May 2016

Reformatskii coupling of benzaldehyde or the phenyl ketones (I) with the α‐bromo esters (II) gives the β‐hydroxy β‐phenyl carboxylates (III) which are reduced and then saponified to form the β‐phenyl carboxylic acids (V).
ChemInform Abstract: Regioselective Synthesis of Substituted Rubrenes.
Authors: DODGE J. A. , BAIN J. D. , CHAMBERLIN A. R.
Published: May 2016

Cycloaddition reaction of the isobenzofurans (I) with 1,4‐naphthoquinone (II) followed by PBr3‐mediated deoxygenation gives the naphthacenequinones (III).
ChemInform Abstract: Fused Heterocycles. Part 48. Mercapto and Hydroseleno Aldehydes of the Benzo(b)furan Series in the Synthesis of Bifunctional and Complexing Compounds.
Authors: LITVINOV V. P. , MORTIKOV V. YU. , VAISBURG A. F.
Published: May 2016

2‐Mercapto(hydroseleno)‐3‐benzofurancarboxaldehyde, prepared from 2‐bromo‐3‐benzofurancarboxaldehyde (II) and the sodium hydrogen chalcogenides (III), is coupled in situ with the chloroacetate (IV) to give the benzofuranylchalcogenoacetates (V).
ChemInform Abstract: Vilsmeier‐Haack Reaction with Succinamidals. Convenient Synthesis of 5‐Chloropyrrole‐2‐carboxaldehydes and 5‐Chloropyrrole‐2,4‐dicarboxaldehydes.
Authors: GUZMAN A. , ROMERO M. , MUCHOWSKI J. M.
Published: May 2016

The reaction of the succinamidals (I) with the Vilsmeier‐Haack reagent derived from (II) and (III) can be controlled to preferentially produce either the carboxaldehydes (II) or bis‐carboxaldehydes (V).
ChemInform Abstract: A 1H and 13C NMR Study of the Structure and Tautomerism of 4‐Pyrazolylpyrazolinones.
Authors: ELGUERO J. , MARTINEZ A. , SINGH S. P. , GROVER M. , TARAR L. S.
Published: May 2016

Reaction of dehydroacetic acid (I) with a monosubstituted hydrazine such as (II) may yield, theoretically, four isomeric 4‐pyrazolylpyrazolinones via two enolic diketone isomers (4‐(3‐hydroxycrotonoyl)‐3(5)‐hydroxy‐5(3)‐methylpyrazoles).
ChemInform Abstract: Facile Enantioselective Synthesis of an Aryloxypropanolamine β‐Blocker Through a Two‐Step Conversion of 1,3‐Dioxolanes into Epoxides.
Authors: NICOLA M. , DEPAOLI A. , INGLESI M.
Published: May 2016

The key step in the synthesis sequence shown in the scheme for the (S) enantiomer (VIII) of P‐0160, an aryloxypropanolamine cardioselective β‐blocker, is the reaction of the dioxolane (R)‐(IV) with HBr in AcOH to give the acetoxy‐bromo derivative (R)‐(V).
ChemInform Abstract: Diastereoselectivity in Conjugate Addition of Alkylcuprates to Vinylogous Ester of N,O‐Diprotected Serinal.
Authors: JAKO I. , UIBER P. , MANN A. , TADDEI M. , WERMUTH C.‐G.
Published: May 2016

The N,O‐diprotected serinal (I) is olefinated with the Wittig reagent (II) to give predominantly the E‐configurated α,β‐unsaturated ester (III).
ChemInform Abstract: Alkylation of Crystalline 5‐Benzylidenerhodanine by Diazomethane.
Authors: GINAK A. I. , RUBLEVA O. G. , DYMSHITS V. A.
Published: May 2016

As it is known from previous work, the solid title compound (I), recrystallized from MeOH, on reaction with CH2N2 (II) yields the methyl derivatives (III) and (IV) in a ratio of 1.47:1.
ChemInform Abstract: Studies on Biologically Active Heterocycles. Part 3. Synthesis and Antibacterial Activity of Some 2‐Aryl/Aralkyl‐3‐Substituted‐4‐thiazolidinones.
Authors: DUTTA M. M. , GOSWAMI B. N. , KATAKY J. C. S.
Published: May 2016

The target compounds (IV) are prepared by condensation reaction of the aldehydes (II) with the hydrazides (I) and subsequent cyclization of the hydrazones (III) with mercaptoacetic acid (IV).
ChemInform Abstract: The Chemistry of N‐Substituted Benzotriazole. Reactions of N‐(α‐Aminoalkyl)‐ and N‐(α‐Amidoalkyl)benzotriazoles with Monodeprotonated Nitroalkanes.
Authors: KATRITZKY A. R. , SACZEWSKI F.
Published: May 2016

The N‐(β‐nitroalkyl)amides (IV) are obtained just as the amines (III) except using DMF instead of EtOH as solvent.
ChemInform Abstract: Studies on 5‐(Indan‐1′‐yl)tetrazoles as Potential Non‐Steroidal Antiinflammatory Agents.
Authors: RAY S. M. , LAHIRI S. C.
Published: May 2016

The indancarbonitriles (IV), prepared from the carboxylic acids (I) via dehydration of the amides (III), are treated with sodium azide (V) to form the indanyltetrazoles (VI).
ChemInform Abstract: Novel Syntheses of Dihydroxanthyletin and Dihydroseselin Derivatives.
Authors: JETTER M. M. , HEINDEL N. D. , LASKIN J. D.
Published: May 2016

Within a research targeted toward the synthesis and biological evaluation of psoralen analogues for pharmaceutical applications, the 7‐hydroxycoumarins (I) and (IV) are condensed with alkylating agents such as (II) and (V) in acid media to give the title compounds (III) and (VI).
ChemInform Abstract: Selective Cleavage of the Ether and Amide Bonds in N‐(2,4‐Difluorophenyl)‐2‐(3‐(trifluoromethyl)‐phenoxy)‐3‐pyridinecarboxamide (Diflufenican).
Authors: ROUCHAUD J. , GUSTIN F. , MOULART C. , HERIN M.
Published: May 2016

The title herbicide (I) is more stable in alkaline than in acidic medium.