bluuebunny/crossref_metadata_2025_split huggingface dataset:
ChemInform Abstract: New Access to 2‐(Arylazo)‐, 2‐(Arylhydrazo)‐, and 2‐Aminoindoles, ‐benzofurans, and ‐thianaphthenes.
Authors: BENINCORI T. , SANNICOLO F. 
Published: May 2016

AbstractThe anilines and (thio)phenols (I) are coupled with the hydrazono ketones (II) and then cyclized upon heating in polyphosphoric acid, yielding the benzo‐fused pyrroles, furans, or thiophenes (IV).
ChemInform Abstract: Application of Trichloroethylene in Organic Syntheses. Part 4. Syntheses of 9‐(1,2‐Dichlorovinyl)carbazoles.
Authors: PIELICHOWSKI J. , BOGDAL D. 
Published: May 2016

AbstractCarbazoles such as (I) react with trichloroethene (II) under phase‐transfer catalysis conditions to give high yields of the title compounds (III), with the E isomers being the main components.
ChemInform Abstract: New Congeners of Antihypertensive and Antithrombotic 7‐Amino or 7‐Acetylamino‐Substituted‐4,4a‐dihydro‐5H‐indeno(1,2‐c)pyridazin‐3‐ones.
Authors: CIGNARELLA G. , BARLOCCO D. , LANDRIANI L. , FOLLONI M. , PINNA G. A. , SALA F. , GERMINI M. 
Published: May 2016

AbstractThe indanone (III), prepared by cyclization of 3‐acetamidohydrocinnamic acid (I), undergoes cyclocondensation with glyoxylic acid (IV) to form the indanylacetic acid (VI) after reduction.
ChemInform Abstract: 4‐Alkoxy‐6‐alkyl‐2‐pyrones as Precursors for 4‐Alkoxy‐6‐alkyl‐2‐aminobenzoic Acid Derivatives.
Authors: TAM T. F. , COLES P. 
Published: May 2016

AbstractDiels‐Alder reaction of the 4‐alkoxy‐6‐alkyl‐2‐pyrones (I) with dimethyl acetylenedicarboxylate (II) yields the phthalic acid derivatives (III) which are converted to the anthranilic acid derivatives (VII), (IX), or (XI) via Curtius rearrangement.
ChemInform Abstract: η1‐Coordination versus η2‐Coordination in Transition‐Metal Phosphinomethanide Complexes: Synthesis and X‐Ray Structure of Cp2Zr(Cl)(C(PMe2)(SiMe3)2).
Authors: KARSCH H. H. , DEUBELLY B. , HOFMANN J. , PIEPER U. , MUELLER G. + 
Published: May 2016

AbstractThe title compound (III) is characterized by 1H and 31P NMR data as well as by X‐ray structure analysis (space group P21/c, Z=4).
ChemInform Abstract: Preparation, Infrared, 13C, and 119Sn NMR Spectral Studies of Triorganotin(IV) Derivatives of N‐Acetyl‐L‐phenylalanine and N‐Acetyl‐L‐phenylalanylglycine.
Authors: SANDHU G. K. , KAUR G. , HOLECEK J. , LYCKA A. 
Published: May 2016

AbstractThe N‐protected amino acids (I) react with the organo‐tin chlorides (II) to form the stannyl esters (III).
ChemInform Abstract: Application of Free Radical Substitution Reaction into Interconversion of 1‐Alkenyl Sulfides, 1‐Alkenylgermanes, and 1‐Alkenylstannanes.
Authors: ICHINOSE Y. , OSHIMA K. , UTIMOTO K. 
Published: May 2016

AbstractVinylic sulfides such as (I) or (IV) react with triphenylgermane (II) or ‐stannane (VI) in the presence of triethylboron to produce the vinylgermanes (III) or (V) or the stannane (VII).
ChemInform Abstract: Intermolecular (2 + 2 + 2) Cycloaddition Reactions of Alkynes and Alkenes Mediated by Cobalt: X‐Ray Crystal Structures of Two Isomeric (η5‐Cyclopentadienyl)(η4‐1,3‐cyclohexadiene)cobalt Complexes.
Authors: MACOMBER D. W. , VERMA A. G. , ROGERS R. D. 
Published: May 2016

AbstractTreatment of the bicyclic alkenes (I) or (IX) with the alkyne (II) in the presence of the Co complex (III) produces the complex compounds (IV), (V) and (VI) or (X), (XI) and (VI), respectively.
ChemInform Abstract: Electronic Structure of Platinum(II) Antitumor Complexes and Their Interactions with Nucleic Acid Bases. Part 1.
Authors: LIPINSKI J. 
Published: May 2016

AbstractElectronic structure and intermolecular interactions of the model antitumor Pt(II) complexes with guanine and thioguanine are calculated using the semi‐empirical all‐valence method (GRINDOL).
ChemInform Abstract: Synthesis and Structure of the Tetra‐5,6‐dihydropyrimidino(5,4‐c)carbazole Dichloride Hexachloroplatinate(IV) Tetrahydrate.
Authors: VIOSSAT B. , NGUYEN‐HUY DUNG NGUYEN‐HUY DUNG , LANCELOT J. C. , ROBBA M. 
Published: May 2016

AbstractK2PtCl4 in H2O reacts with the ligand in HCl to give the title complex (I) (no yield given), which crystallizes in P1 with Z=1.
ChemInform Abstract: Synthesis and Photoelectrochemistry of Polycrystalline Thin Films of p‐WSe2, p‐WS2, and p‐MoSe2.
Authors: CABRERA C. R. , ABRUNA H. D. 
Published: May 2016

AbstractPolycrystalline thin films of p‐WSe2, p‐WS2, and p‐MoSe2 have reasonable photoelectrochemical properties.
ChemInform Abstract: Surface Coordination Chemistry of Noble‐Metal Electrocatalysts: Oxidative Addition and Reductive Elimination of Iodide at Iridium, Platinum and Gold in Aqueous Solutions.
Authors: RODRIGUEZ J. F. , HARRIS J. E. , BOTHWELL M. E. , MEBRAHTU T. , SORIAGA M. P. 
Published: May 2016

AbstractOn Ir, Pt, and Au electrodes, the iodo species undergoes spontaneous oxidative chemisorption to form a close‐packed monolayer of zero‐valent iodine.
ChemInform Abstract: Reaction of 2‐Aminobenzoylhydrazines with Hexane‐2,5‐dione and β‐Keto Esters: Formation of Pyridazine, Pyrrole and Pyrazolo(5,1‐b)quinazolinone Derivatives.
Authors: REDDY P. S. N. , REDDY P. P. 
Published: May 2016

AbstractSince fused 1,4‐benzodiazepinones are of therapeutic interest, the synthesis of related systems such as fused 1,3,4‐benzotriazepin‐5‐ones is envisaged.
ChemInform Abstract: Mechanism of Reactions of Some N1‐Substituted Biguanides with Chromium(VI) in Aqueous Sulfuric Acid Media.
Authors: BANERJEE R. , BHATTACHARYA A. , DAS P. K. , CHAKRABURTTY A. K. 
Published: May 2016

AbstractAmong biguanide, some N(1)‐substituted biguanides, and related compounds such as (III) and its N(1)‐phenyl derivative, only (Ia) (and its p‐methoxy derivative (Ib)) reacts with Cr(VI) to give quinone (II) and urea (III).
ChemInform Abstract: Titanium(IV)‐Mediated Aldol‐Type Condensation of Zinc Esters and Zinc Ketones with Carbonyl Electrophiles.
Authors: OCHIAI H. , NISHIHARA T. , TAMARU Y. , YOSHIDA Z. 
Published: May 2016

Abstractω‐(Iodozinc) esters such as (I) are coupled with the aldehydes (II) in the presence of chlorotri(isopropoxy)titanium to yield the hydroxy esters (III) and/or the lactones (IV).
ChemInform Abstract: Stereochemistry of the Fluoride Catalyzed Aldol Reaction of Enol Silyl Ethers. Evidence for Another Non‐Chelate Transition State.
Authors: NAKAMURA E. , YAMAGO S. , MACHII D. , KUWAJIMA I. 
Published: May 2016

AbstractThe silyl enol ethers (I) or (IV) are coupled with the aldehydes (II) or (V) in the presence of tetrabutylammonium fluoride, yielding the β‐hydroxy ketones (III) and (VI) with predominance of the erythro isomers.
ChemInform Abstract: A Novel and Efficient Synthesis of 2(5H)‐Furanone Derivatives.
Authors: TANABE Y. , OHNO N. 
Published: May 2016

AbstractCross‐aldol reaction of the α‐keto dimethyl acetals (I) with the silyl enol ethers (II) or the ketones (IV) gives the adducts (III).
ChemInform Abstract: Synthesis of 2‐Substituted Thiobenzimidazoles as Possible Bioactive Agents.
Authors: SHUKLA J. S. , FADAYAN M. , KHAN M. M. A. A. , BHAR S. C. 
Published: May 2016

AbstractThe benzimidazolylthioacetyl chlorides (I) are coupled with the anilines (II).
ChemInform Abstract: Heterocyclic Systems Containing Bridgehead Nitrogen Atom: Synthesis of Thiazolo(3′,2′:2,3) (1,2,4)triazino(5,6‐b)indoles and Isomeric Thiazolo(2′,3′:3,4) (1,2,4)triazino(5,6‐b)indoles.
Authors: MOHAN J. , ANJANEYULU G. S. R. , KIRAN KIRAN 
Published: May 2016

AbstractCyclization of N‐heterocycles of type (III) yields the tetracyclic system (IV) and not the isomeric (V).
ChemInform Abstract: Total Syntheses of Marine Sponge Metabolites. Part 3. Stereoselective Total Synthesis of (.+‐.)‐12‐Deoxyscalaradial.
Authors: NAKANO T. , HERNANDEZ M. I. , MARTIN A. , DOMINGO MEDINA J. 
Published: May 2016

AbstractThe title compound (VIII), a representative of the scalaradials from marine sponges, is synthesized starting from the known alcohol (I) via the intermediates shown in the scheme.
ChemInform Abstract: Chemistry of Polar Intermetallic Compounds. Study of Two Zr5Sb3 Phases, Hosts for a Diverse Interstitial Chemistry.
Authors: GARCIA E. , CORBETT J. D. 
Published: May 2016

AbstractSamples of the binary phase Zr5Sb3+x (I) (0 ≤ x ≤ 0.4) are prepared by vapor‐phase transport or by annealing mixtures of the elements or arc‐melted products at 1000‐1100 °C. The product crystallizes in the Mn5Si3‐type structure, space group P63/mcm, Z=2.
ChemInform Abstract: Homochiral Ketals in Organic Synthesis. Enantioselective Synthesis of (4S,5S)‐4,5‐Dihydroxycyclopent‐2‐en‐1‐one Isopropylidene Ketal.
Authors: FLANN C. J. , MASH E. A. 
Published: May 2016

AbstractThe acetal (IXa) mentioned in the title and its enantiomer (IXb) are prepared from the chiral cyclopentenone acetal (III) by consecutive bromination, hydroxylation, acetalization, dehydrobromination, and deprotection.
ChemInform Abstract: Molecular Recognition. Part 2. Molecular Recognition of Amino Acids: Two‐Point Fixation of Amino Acids with Bifunctional Metalloporphyrin Receptors.
Authors: AOYAMA Y. , YAMAGISHI A. , ASAGAWA M. , TOI H. , OGOSHI H. 
Published: May 2016

AbstractThe first successful two‐point fixation of amino acids and amino esters in nonionic forms via simultaneous metal‐coordination and hydrogen‐bonding interactions with bifunctional metalloporphyrin receptors is reported.
ChemInform Abstract: A New Sulfur‐Bridged Ir(I)‐Ir(I) Compound and Its Conversion to a Compound Containing a Metal‐Metal Bond. Crystal Structures of Ir2(SPh)2(COD)2 and Ir2Cl2(μ2‐SPh)2(COD)2.
Authors: COTTON F. A. , LAHUERTA P. , LATORRE J. , SANAU M. , SOLANA I. , SCHWOTZER W. 
Published: May 2016

AbstractThe thiolate‐bridged binuclear complex (III) is obtained from the methoxide‐bridged analogue (I) by ligand exchange.
ChemInform Abstract: New Compounds of the Weberite Type with the Compositions Na2M(II)M(III)F7 and Ag2M(II)M(III)F7.
Authors: KOCH J. , HEBECKER CHR. 
Published: May 2016

AbstractIn the past few years 35 new compounds of the title composition have been prepared by heating equimolar mixtures of the binary fluorides according to the scheme.
ChemInform Abstract: Reactions of the Superoxochromium(III) Ion with Transition‐Metal Complexes.
Authors: BRYNILDSON M. E. , BAKAC A. , ESPENSON J. H. 
Published: May 2016

AbstractAs shown by kinetic experiments in acidic aqueous solutions at 25 °C and 0.10 M ionic strength, an outer‐sphere electron transfer seems to be the most reasonable mechanistic assignment for the reactions of CrO22+ with substitutionally inert one‐electron‐reducing agents V(H2O)62+, Ru(NH3)62+ , and Co(sep)2+ (sep: 1,3,6,8,10,13,16,19‐octaazabicyclo(6.6.6)eicosane).
ChemInform Abstract: Characterization of Chromia‐Promoted γ‐Iron Oxide Catalysts and Their CO Conversion Efficiency.
Authors: KUNDU M. L. , SENGUPTA A. C. , MAITI G. C. , SEN B. , GHOSH S. K. , KUZNETSOV V. I. , KUSTOVA G. N. , YURCHENKO E. N. 
Published: May 2016

AbstractThe nature of incorporation of Cr3+ ions and the evolution of phases in Cr2O3‐promoted γ‐Fe2O3 prepared under different conditions are studied by DTA, XRD, TEM, IR and Moessbauer spectroscopy.
ChemInform Abstract: Potentially Aromatic Metallocycles.
Authors: BALDRIDGE K. K. , GORDON M. S. 
Published: May 2016

AbstractAb initio MO theory is used to characterize a series of heteroatom‐substituted (Si, Ge, Sn, N, P, As, Sb, O, S, Se, Te) benzene and cyclopentadiene structures in terms of their delocalization stabilization (aromaticity).
ChemInform Abstract: Carbon Acidity. Part 76. The Remarkably Low Second pKa of 1‐Naphthylacetic Acid. Lithium Ion Pair Acidity in Tetrahydrofuran.
Authors: GRONERT S. , STREITWIESER A. JUN. 
Published: May 2016

AbstractThe pK measurements show a variation with the concentration of the salts.
ChemInform Abstract: Silica‐Supported Fe‐Pd Bimetallic Particles ‐ Formation from Mixed‐Metal Clusters and Catalytic Activity.
Authors: BRAUNSTEIN P. , DEVENISH R. , GALLEZOT P. , HEATON B. T. , HUMPHREYS C. J. , KERVENNAL J. , MULLEY S. , RIES M. 
Published: May 2016

AbstractAEM (analytical electron microscopy) investigations on catalysts in the reductive carbonylation of o‐nitrophenol to benzoxalol‐2(3H)‐one are carried out, which are prepared by thermal decomposition of the clusters (I) and (II) on SiO2 supports.
ChemInform Abstract: Chiral Lactols. Part 7. O,O‐ and O,N‐Acetal Formation Using the Enantiomerically Pure exo Anellated Octahydro‐7,8,8‐trimethyl‐4,7‐methanobenzofuran‐2‐ol Protective Group.
Authors: NOE C. R. , KNOLLMUELLER M. + , STEINBAUER G. , JANGG E. , VOELLENKLE H. + 
Published: May 2016

AbstractThe enantiomerically pure lactol (I) exhibits anomeric and enantiomeric selectivity when treated with the racemic hydroxy compounds (II) affording the diastereomers (III) and (IV).
ChemInform Abstract: Regioselective Catalytic Addition Reaction of Proton Donating Reagents to 1‐Alkyl‐3‐cyclopropenecarboxylates. Part 2. Catalytic Reaction of Methyl 1‐Alkyl‐3‐cyclopropenecarboxylates with Hydrogen Halides and Carboxylic Acids.
Authors: SHAPIRO E. A. , PROTOPOPOVA M. N. , NEFEDOV O. M. 
Published: May 2016

AbstractCopper‐catalyzed reaction of the cyclopropenecarboxylates (I) with the hydrogen halides (II) or the carboxylic acids (IV) gives the olefins (III) or (V).
ChemInform Abstract: Activated Nitriles in Heterocyclic Synthesis: A Novel Synthesis of Fused Pyrimidine, Pyrazole and Thiazole Derivatives.
Authors: IBRAHIM M. K. A. 
Published: May 2016

AbstractThe reaction of the dinitrile (II) with a series of cyclic amidines and active methylene compounds is investigated leading to the corresponding title compounds as is shown for the examples (III), (V) and (VII).
ChemInform Abstract: Cis‐Trans Isomerization of Epoxides Catalyzed by Ruthenium(II) Porphyrins.
Authors: GROVES J. T. , AHN K.‐H. , QUINN R. 
Published: May 2016

AbstractThe cis/trans isomerization of some epoxides such as (I) is found to be catalyzed by ruthenium porphyrin complexes.
ChemInform Abstract: Reduction of Epoxides, α,β‐Unsaturated Aldehydes, and Vicinal Diketones with “Reactive Titanocene”.
Authors: SCHOBERT R. 
Published: May 2016

AbstractThe epoxides (II), (IV), (VI) can be stereoselectively deoxygenated by "reactive titanocene" formed by reduction of the dichloride (I) with Mg to give the alkenes (III), (V), (VII).
ChemInform Abstract: Direct N‐Alkylation of Carboxylic Acid Amides Using Complex Palladium Catalysts.
Authors: SAFUANOVA R. M. , FAKHRETDINOV R. N. , DZHEMILEV U. M. 
Published: May 2016

AbstractIn the presence of a complex palladium catalyst, prepared in situ from palladium(II) acetylacetonate, triphenylphosphine, and triethylaluminum, the acetanilides (I) react with butadiene (II) to give mainly the 2,7‐octadienylamides (III).
ChemInform Abstract: Altered Condensed‐Phase Electron Affinities of Carbonyl‐13C‐, ‐14C‐, and ‐17O‐Substituted Ketones.
Authors: LAURICELLA T. L. , PESCATORE J. A. JUN. , REITER R. C. , STEVENSON R. D. , STEVENSON G. R. 
Published: May 2016

AbstractReduction of p‐benzoquinone or benzophenone in liquid NH3 with a deficient amount of Na or K leads to a mixture of the form (Ph212CO).‐M+ + Ph2nCO ⇌ Ph212CO + (Ph2nCO).‐M+ (M: Na or K; n = 13 or 14) with an equilibrium constant deviating from unity.
ChemInform Abstract: 1,3‐Donor/Donor‐Substituted Allenes. Part 6. Transallenation to Allene‐1,1‐dicarboxanilides and Their Thermolysis: A Direct Route to Polycycles. Crystal‐ and Molecular Structure of 7‐(Dimethylamino)‐3,4‐dihydro‐N,N‐dimethyl‐5‐oxo‐2H,5H‐pyrano(4,3‐b)pyran‐8‐carboxamide.
Authors: SAALFRANK R. W. , HILBIG K. , SCHUETZ F. + , PETERS K. , VON SCHNERING H. G. 
Published: May 2016

AbstractDepending on the bulkiness of the substituents and the reaction temp., the disubstituted malonyl chlorides (I), (IV) react with the conveniently accessible allene (II) by transallenation to give the products (III) or (V).
ChemInform Abstract: Preparation and Isolation of Polyenes Containing up to 15 Double Bonds.
Authors: KNOLL K. , KROUSE S. A. , SCHROCK R. R. 
Published: May 2016

AbstractRing‐opening oligomerization of the tricyclodecatriene (I) to give the adducts (V) as an oligomeric mixture is achieved via the metal complexes (III).
ChemInform Abstract: Derivatives of Substituted Propionic Acid as Antiinflammatory Agents.
Authors: SINGH P. , HINGORANI L. L. , TRIVEDI G. K. 
Published: May 2016

AbstractA simple and facile synthesis of the 4‐acetylaminophenyl esters (IIIa), (IIIb) and (IIIc) of ketoprofen, naproxen and ibuprofen, resp., is achieved under the reaction conditions shown in the scheme.
ChemInform Abstract: Cobalt(II) Tetraphenylporphyrin Catalyzed Decomposition of Bicyclic Endoperoxides.
Authors: SUETBEYAZ Y. + , SECEN H. , BALCI M. 
Published: May 2016

AbstractThe cobalt(II) tetraphenylporphyrin catalyzed decomposition of bicyclic endoperoxides with strained and perturbed diene moieties, e.g. (I), (V), and (VIII), leads to the formation of diepoxides, e.g. (II), (VI), and (IX), and/or epoxy aldehydes such as (III), (IV), and (VII).
ChemInform Abstract: Synthesis, Characterization, and Thermolysis of 7‐Amino‐7‐azabenzonorbornadienes.
Authors: CARPINO L. A. , PADYKULA R. E. , BARR D. E. , HALL F. H. , KRAUSE J. G. , DUFRESNE R. F. , THOMAN C. J. 
Published: May 2016

AbstractDiels‐Alder cycloaddition reaction of N‐benzylisoindole (I) with the aryne derived from (II) yields the dibenzoazanorbornadiene (III) which is converted to the hydrazine derivative (VIII).
ChemInform Abstract: Asymmetric 1,3‐Dipolar Cycloadditions of Nitrile Oxides Using Simple Chiral Auxiliaries.
Authors: OLSSON T. , STERN K. , SUNDELL S. 
Published: May 2016

Abstract1,3‐Dipolar cycloaddition reaction of the nitrile oxides (II), generated in situ, with the bornyl crotonates (I), gives a mixture of the diastereo‐ or regioisomeric isoxazolines (III)/(IV) and (V)/(VI).
ChemInform Abstract: Synthesis of Azocine Derivatives from Thioaldehyde Diels‐Alder Adducts.
Authors: VEDEJS E. , STULTS J. S. 
Published: May 2016

AbstractThe phenacyl sulfides (I) and the bridged sulfides (VI) are photochemically or thermally cleaved to give the thioaldehydes (II) which are trapped by the electron‐rich dienes (III), (VII), or (IX) to give the adducts (V), (VIII), and (X) respectively.
ChemInform Abstract: Novel Synthetic Route to 2,3,4‐Trisubstituted 6‐Phenylpyridines.
Authors: AL NAKIB T. , MEEGAN M. J. 
Published: May 2016

AbstractReaction of the ketones (III) with malononitrile (II) in the presence of the weak base piperidine yields the pyrancarbonitriles (I) whereas the pyridinecarbonitriles (V) are obtained from (III) and (II) in methanolic NaOH.
ChemInform Abstract: Synthesis of Quinazolinylpyrimidinediones and Their Antiinflammatory Activity.
Authors: KUMAR A. , SINGH S. , SAXENA A. K. , SHANKER K. 
Published: May 2016

AbstractTen compounds of type (V) as well as sixteen compounds of type (VI) and of type (X) are synthesized as shown for the examples in the scheme and tested for their pharmacological activity.
ChemInform Abstract: Synthesis of Six‐Membered Heterocycles via the Ring Cleavage of α‐Bromo‐γ‐butyrolactone Promoted by Organotin Alkoxide.
Authors: SHIBATA I. , TOYOTA M. , BABA A. , MATSUDA H. 
Published: May 2016

Abstractα‐Bromo‐γ‐butyrolactone (II) is cleaved with tributyltin methoxide (I), forming the tin alkoxide (III) which is coupled in situ with the heterocumulenes (IV), (VII), and (X).
ChemInform Abstract: New Synthesis of Pyrido(3,2‐b) (1,4)benzothiazines.
Authors: MCCARTHY E. T. , TYNDALL D. V. , MEEGAN M. J. 
Published: May 2016

AbstractReaction of corresponding arylidenebenzothiazinones (I) with malononitrile (II) in the presence of alcohols (III) gives rise to the heterocycles (IV).
ChemInform Abstract: Improved Procedure for Preparation of Optically Active 3‐Hydroxyglutarate Monoesters and 3‐Hydroxy‐5‐oxoalkanoic Acids.
Authors: THEISEN P. D. , HEATHCOCK C. H. 
Published: May 2016

AbstractThe racemic naphthylethanol (±)‐(I), obtained from 1‐naphthaldehyde and methyllithium, is optically resolved by an enzyme‐mediated transesterification procedure.
ChemInform Abstract: Free‐Radical Additions of Diselenides to Dimethyl Acetylenedicarboxylate, Methyl Propiolate, and Dimethyl Maleate.
Authors: BACK T. G. , KRISHNA M. V. 
Published: May 2016

AbstractPhotolysis of the diselenides (I) in the presence of the acetylenes (II) yields a mixture of the stereoisomeric olefins (III) and (IV).
ChemInform Abstract: An Unusual Dinuclear Cobalt Dioxygen Complex with a Tetradentate Thioether‐Imidazole‐Containing Ligand. Structure of (Co2(bidhx)2(O2)(OH))(NO3)3.
Authors: BOUWMAN E. , DRIESSEN W. L. 
Published: May 2016

AbstractThe 1:1 molar reaction of Co nitrate with the tetradentate ligand 1,6‐bis(5‐methyl‐4‐imidazolyl)‐2,5‐dithiahexane in aqueous ethanol and subsequent air‐oxidation lead to the hydroxo‐ and peroxo‐bridged binuclear complex (I).
ChemInform Abstract: Stabilization of 1,2,4,5‐Tetradehydrobenzene by Complexation at Two Nickel(0) Centers.
Authors: BENNETT M. A. , DRAGE J. S. , GRIFFITHS K. D. , ROBERTS N. K. , ROBERTSON G. B. , WICKRAMASINGHE W. A. 
Published: May 2016

AbstractThe binuclear Ni(0) complex (VII) or 1,2,4,5‐tetradehydrobenzene C6H2 is surprisingly easy accessible by the reaction sequence shown in the scheme.
ChemInform Abstract: A Topologically Chiral (2)Catenand.
Authors: MITCHELL D. K. , SAUVAGE J.‐P. 
Published: May 2016

AbstractThe racemic, topologically chiral complex (I) ‐ the chirality is caused by different orientation of the two interlocked rings in (IIa) and (IIb) ‐ is prepared starting from (I).
ChemInform Abstract: μ‐Hydroxo‐ and μ‐Oxobis(μ‐acetato)diruthenium Complexes with Weak Intramolecular Ru...Ru Interactions.
Authors: NEUBOLD P. , WIEGHARDT K. , NUBER B. , WEISS J. 
Published: May 2016

AbstractDespite an increase in bond order from 1.0 to 1.5 an expansion of the Ru‐Ru bond of 0.084 Å is observed on going from the Ru(III),Ru(III) complex (III), prepared as shown, to the Ru(III),Ru(IV) complex (IV) ‐ an electron is removed from an antibonding molecular orbital.
ChemInform Abstract: Steroids. Part 38. Neighbouring‐Group Participation. Part 9. Preparation of 16α‐Hydroxymethyl‐3‐methoxyestra‐1,3,5(10)‐trien‐17α‐ol and Solvolysis Investigations.
Authors: SCHNEIDER G. , HACKLER L. , SOHAR P. 
Published: May 2016

AbstractThe 16α‐acetoxymethyl group participates in the solvolysis reaction of the tosylate (I) and causes the formation of the diacetate (IV).
ChemInform Abstract: Inter‐ and Intramolecular Hetero‐Diels‐Alder Reactions. Part 24. Synthesis of Strictosidine Analogues by Hetero‐Diels‐Alder Reaction and Their Biomimetic Transformation to Indole Alkaloids.
Authors: TIETZE L. F. , BACHMANN J. , SCHUL W. 
Published: May 2016

AbstractTandem Knoevenagel/hetero‐Diels‐Alder reaction of the aldehyde (I) ‐ derived from tryptamine and a mixed malondialdehyde acetal in a 4‐step procedure ‐ with the barbituric acid (II) and the butenyl ether (III) yields a mixture of the strictosidine analogues (IV) and (VII).
ChemInform Abstract: Oxidative Coupling of cis‐3,N‐Bis(methoxycarbonyl)‐N‐norreticuline. An Approach to the Asymmetric Synthesis of Morphine Alkaloids.
Authors: SCHWARTZ M. A. , PHAM P. T. K. 
Published: May 2016

AbstractOxidation of the racemic norreticuline derivative (I) with iodosobenzene diacetate results in the formation of a mixture of the norsalutaridine (II) and norisoboldine derivative (III) and the uncoupled quinone (IV).
ChemInform Abstract: Improvements in Oligodeoxyribonucleotide Synthesis Using Phenoxyacetyl as Amino Protecting Group.
Authors: SINGH R. K. , MISRA K. 
Published: May 2016

AbstractThe phenoxyacetyl group can be successfully used for the protection of the exocyclic amino function of purine and pyrimidine bases of 2'‐deoxynucleosides.
ChemInform Abstract: Biologically Active Glycosides from Asteroidea. Part 15. Asymmetric Synthesis of Phytosphingosine and Phytosphingosine Anhydro Base: Assignment of the Absolute Stereochemistry.
Authors: SUGIYAMA S. , HONDA M. , KOMORI T. 
Published: May 2016

AbstractGrignard reaction of crotonaldehyde (I) yields the racemic enol (±)‐(III), which is resolved to give the (R)‐isomer (III) via asym.