bluuebunny/crossref_metadata_2025_split huggingface dataset:
ChemInform Abstract: Thermal Rearrangements. Part 19. The Kinetics of the Thermal Isomerization of 1‐Ethynyl‐2,2,3,3‐tetramethylcyclopropane.
Authors: HOPF H. , WACHHOLZ G. , WALSH R. , DE MEIJERE A. , TEICHMANN S. 
Published: May 2016

AbstractAlthough the desired title compound (V) can be directly prepared from (I) with 3 equiv. BuLi (yield 13% pure) better yields are obtained via the reaction sequence shown in the scheme.
ChemInform Abstract: Condensation of Some Aromatic Aldehydes with Dimethyl Sulfone.
Authors: SELVARAJ S. , DHANABALAN A. , PERUMAL S. , ARUMUGAM N. 
Published: May 2016

AbstractCyclocondensation of dimethyl sulfone (I) with the aromatic aldehydes (II) produces the diaryloxathiins (III).
ChemInform Abstract: Kinetics and Mechanism of the Thermal Decomposition of (E)‐ and (Z)‐1,1,2,3‐Tetramethylsiletane.
Authors: CONLIN R. T. , NAMAVARI M. , CHICKOS J. S. , WALSH R. 
Published: May 2016

AbstractThe title compounds (IV) and (V), when pyrolyzed separately at 398 °C, provide the same products.
ChemInform Abstract: Preparation and X‐Ray Structure of (Cp2Zr(μ‐I))2. A Thermally Unstable Zirconium(III) Complex.
Authors: WIELSTRA Y. , GAMBAROTTA S. , MEETSMA A. , DE BOER J. L. 
Published: May 2016

AbstractThe comproportionation reaction between the Zr(IV) compound (I) and the Zr(II) complex (II) leads to a mixture of the binuclear η5:η5‐fulvalen complex (IV) and the iodo‐bridged title complex (III) which are isolated in pure form.
ChemInform Abstract: Photoreaction of Hexacarbonylbis(η5‐methylcyclopentadienyl)ditungsten with Conjugated Dienes.
Authors: KREITER C. G. , WENDT G. , KAUB J. 
Published: May 2016

AbstractDepending on the structure of the dienes, the photochemical reaction of the title compound (I) with the 1,3‐butadienes (II) and (V) gives the products (III) (space group: P1; Z=2) and (VI).
ChemInform Abstract: Synthesis and Spectral Characterization of a Series of Iron and Ruthenium Benzylidene Complexes, Cp(CO)(L)M=CH(C6H4R)+ (M: Fe, Ru; L: CO, PPh3; R: p‐H, p‐F, p‐CH3, p‐OCH3). Barriers to Aryl Rotation and Benzylidene Transfer Reactions.
Authors: BROOKHART M. , STUDABAKER W. B. , HUMPHREY M. B. , HUSK G. R. 
Published: May 2016

AbstractThe α‐ether dicarbonyl‐Fe complexes (V) are synthesized according to the scheme and converted into their PPh3 derivatives (VII) from which exist only one diastereomer.
ChemInform Abstract: Versatile Behavior of Hydrido Monometallic or Heterobimetallic Carbonyl Anions Toward Dichlorophosphines and 1,1‐Dichlorodiphosphines.
Authors: WESTERMANN H. , NIEGER M. , NIECKE E. , MAJORAL J.‐P. , CAMINADE A.‐M. , MATHIEU R. , IRMER E. 
Published: May 2016

AbstractThe reactivity of the diphosphine (I) toward the hydridocarbonylmetalates (II) and (IV) is investigated.
ChemInform Abstract: Transition‐Metal Silyl Complexes. Part 27. Silyl‐Substituted Heteromultinuclear Complexes by Reaction of the Anionic Silyl Complexes (MeCpMn(CO)2SiR3)‐ and (Fe(CO)3(PPh3)SiR3)‐ with Dihalides of Zinc, Cadmium, or Mercury.
Authors: KUNZ E. , SCHUBERT U. 
Published: May 2016

AbstractThe anionic silyl complexes (I) and (V) react with equimolar amounts of ZnCl2, CdCl2, or HgBr2 (II) to give the dinuclear complexes (III) and (VI); the Fe‐Zn complex is unstable.
ChemInform Abstract: Polynuclear Iron and Rhodium Complexes of 7‐Oxa(2.2.1)hericene (2,3,5,6‐Tetramethylidenebicyclo(2.2.1)heptan‐7‐one).
Authors: RUBELLO A. , VOGEL P. 
Published: May 2016

AbstractThe reaction of the title ligand (II) with the triruthenium cluster (I) and cyclooctene‐Fe tricarbonyl as well as Fe2(CO)9 lead to the di‐ and tetranuclear complexes (III) and (IVa), and to the isomeric dinuclear Fe complexes (VIIb) and (IVc).
ChemInform Abstract: The 9‐Anthroate Chromophore as a Fluorescent Probe for Water.
Authors: MACANITA A. L. , COSTA F. P. , COSTA S. M. B. , MELO E. C. , SANTOS H. 
Published: May 2016

AbstractWater quenches the fluorescence of methyl 9‐anthroate with a rate constant showing little dependence on solvent viscosity or polarity.
ChemInform Abstract: Vanadium‐Molybdenum Oxides and Their P2O5 Glasses as Intercalation Cathodes for Rechargeable Lithium Cells.
Authors: UCHIYAMA M. , SLANE S. , PLICHTA E. , SALOMON M. 
Published: May 2016

AbstractThe mixed oxides (V0.7Mo0.3)2O5 (I) and V9Mo6O40 (II) and their P2O5 glasses are synthesized and the performance of these materials in rechargeable Li cells with a LiAsF6/methyl formate electrolyte is compared with that of V2O5.
ChemInform Abstract: Experiments About the Mixed Crystal Formation Between Zincoxotantalates and ‐antimonates: ZnTa2‐xSbxO6 and Zn4Ta2‐xSbxO9.
Authors: HALLE G. , MUELLER‐BUSCHBAUM HK. + 
Published: May 2016

AbstractTwo novel phases, ZnTa1.8Sb0.2O6 (I) and Zn4Ta1.2Sb0.8O9 (II), obtained by high‐temp.
ChemInform Abstract: Highly Polydentate Ligands. Part 4. Crystal Structures of Neodymium(III) and Erbium(III) Complexes of 3,12‐Bis(carboxymethyl)‐6,9‐dioxa‐3,12‐diazatetradecanedioate(4‐).
Authors: SCHAUER C. K. , ANDERSON O. P. 
Published: May 2016

AbstractThe structures of Ca salts of the Er and Nd chelates of the calcium‐selective octadentate title ligand are determined, in order to identify the structural changes occurring in a calcium‐selective binding site when lanthanoids are substituted for Ca.
ChemInform Abstract: Hexaisopropoxyditungsten and Dodecaisopropoxytetratungsten: W2(O‐iPr)6 and W4(O‐iPr)12. Part 2. Studies of Cluster Dynamics and the Equilibrium Between the 12‐Electron Cluster and Two Metal‐Metal Triple Bonds. A Symmetry‐Allowed (π2 s + π2 s) Cycloaddition Reaction and Comparisons with the Chemistry of Cyclobutadiene.
Authors: CHISHOLM M. H. , CLARK D. L. , HAMPDEN‐SMITH M. J. 
Published: May 2016

AbstractThe dynamic behavior and the interconversion of the 12‐electron cluster (I) and the metal‐metal triply bonded compound (II) are investigated.
ChemInform Abstract: Pyrones as Substrates for Palladium‐Catalyzed (4 + 3) Cycloadditions.
Authors: TROST B. M. , SCHNEIDER S. 
Published: May 2016

AbstractWhereas the ester (I) reacts with the acetate (II) under the conditions A) to give a mixture of the (2 + 3) cycloadduct (III) and the (4 + 3) cycloadduct (IV), the reaction of the pyrone (V) with (II) yields the (2 + 3) cycloadduct (VI).
ChemInform Abstract: A Mechanistic Study of the Photochemistry of Fe(CO)3(R‐DAB) (R‐DAB: 1,4‐Diaza‐1,3‐butadiene), a Unique Group of Complexes with Two Close‐Lying Reactive Excited States.
Authors: VAN DIJK H. K. , STUFKENS D. J. , OSKAM A. 
Published: May 2016

AbstractFlash photolysis studies are carried out to discriminate between the mechanisms of the photosubstitution of the complexes (I).
ChemInform Abstract: Rapid Intramolecular Addition Reactions of Triplet Arylcarbenes.
Authors: HOEMBERGER G. + , DORIGO A. E. , KIRMSE W. , HOUK K. N. 
Published: May 2016

AbstractTriplet arylcarbenes generated from (E)‐(I) by benzophenone‐sensitized photolysis react preferentially intramolecularly to give cyclopropanes (III) and (IV).
ChemInform Abstract: Synthesis of Highly Alkylated Functionalized Cyclopentadienes.
Authors: KOSCHINSKY R. , KOEHLI T.‐P. + , MAYR H. 
Published: May 2016

AbstractThe allylic chlorides (I) and (V) undergo cyclocondensation with acetylacetone (II) in the presence of ZnCl2, forming the cyclopentadienes (III) or (VI).
ChemInform Abstract: Biomimetic Ion Transport: A Functional Model of a Unimolecular Ion Channel.
Authors: CARMICHAEL V. E. , DUTTON P. J. , FYLES T. M. , JAMES T. D. , SWAN J. A. , ZOJAJI M. 
Published: May 2016

AbstractA mixture of the regio‐ and stereoisomers of the macrocycle (VII) and its analogues obtained from (V) and (VIII) (instead of (IV)) is used to form a unimolecular ion channel.
ChemInform Abstract: Lactone Synthesis by α,ω‐Diols with Hydrogen Peroxide Catalyzed by Heteropoly Acids Combined with Cetylpyridinium Chloride.
Authors: ISHII Y. , YOSHIDA T. , YAMAWAKI K. , OGAWA M. 
Published: May 2016

AbstractOxidative lactonization of the α,ω‐diols (I), (III), and (VI) is accomplished using hydrogen peroxide in the presence of tris(cetylpyridinium)‐12‐tungstophosphate as a catalyst.
ChemInform Abstract: Asymmetric Reduction of Acylstannanes. Preparation of Enantiomerically Enriched α‐Alkoxystannanes.
Authors: CHAN P. C.‐M. , CHONG J. M. 
Published: May 2016

AbstractAsymmetric reduction of the acylstannenes (V) is performed with the optically active lithium aluminum hydrides (IV).
ChemInform Abstract: Halogen, Hydride, and Alkyl Carbonyl‐Monocyclopentadienyl Niobium Derivatives. Crystal and Molecular Structure of (Nb(η‐C5H5)Cl(H)(CO)(PMe3)2).
Authors: JALON F. A. , OTERO A. , ROYO P. , BALCAZAR J. L. , FLORENCIO F. , GARCIA‐BLANCO S. 
Published: May 2016

AbstractThe reduction of the complexes (I) with sodium amalgam yields the products (II) which serve as starting materials for new halogen, hydride, and alkyl Nb(I)‐ and Nb(III) derivatives.
ChemInform Abstract: Synthesis and Spectroscopic Characteristics of Bis‐(dimethyl(phenyl)silylmethyl)platinum(II) Complexes with Nitrogen Donor Ligands.
Authors: ANKIANIEC B. C. , YOUNG G. B. 
Published: May 2016

AbstractBy the displacement of the diolefin from corresponding cod or norbornadiene complexes the title compounds (I) are prepared.
ChemInform Abstract: Synthetic Photochemistry. Part 44. Total Synthesis of Ceroplastol II and Albolic Acid, 5‐8‐5‐Membered Tricyclic Sesterterpenoid Insect Wax Constituents, via Stereocontrolled Silyloxy‐Cope Rearrangement with a Normally Disfavored Transition State.
Authors: KATO N. , TAKESHITA H. , KATAOKA H. , OHBUCHI S. , TANAKA S. 
Published: May 2016

AbstractThe total syntheses of ceroplastol II (XII) and albolic acid (XIII) are accomplished for the first time.
ChemInform Abstract: Mild Conditions for the Removal of Acid‐Labile Protective Groups.
Authors: MYERS A. G. , FUNDY M. A. M. , LINDSTROM P. A. JUN. 
Published: May 2016

AbstractSome acid‐labile protecting groups such as dimethyl acetals, e.g. in compound (I), tetrahydropyranyl ethers, or trityl ethers are cleaved upon treatment with hydrogen peroxide and trichloroacetic acid.
ChemInform Abstract: An Efficient Route to Homologated Pyranosidic Conjugated Enals.
Authors: BURNOUF C. , LOPEZ J. C. , DE LOS A. LABORDE M. , OLESKER A. , LUKACS G. 
Published: May 2016

AbstractVarious transformations of pyranosides are described, forming the homologous enals which are useful in hetero Diels‐Alder cycloadditions for the synthesis of C‐glycosides.
ChemInform Abstract: Antibiotics from Gliding Bacteria. Part 37. Sorangicin A, a Highly Active Antibiotic with Novel Macrolide‐Polyether Structure from Sorangium cellulosum, So ce12: Spectroscopic Structure Elucidation, Crystal and Solution Structure.
Authors: JANSEN R. , IRSCHIK H. , REICHENBACH H. , SCHOMBURG D. , WRAY V. , HOEFLE G. + 
Published: May 2016

AbstractThe structure of the title antibiotic (I) (space group P21 with Z=2) is predominantly elucidated by NMR methods.
ChemInform Abstract: Hexagonal High Pressure Phase of Copper(I)tetraiodomercurate (Cu2HgI4).
Authors: MIKLER H. 
Published: May 2016

Abstractβ‐Cu2HgI4 is transformed to a new hexagonal high presssure phase when treated with pressures up to 8 GPa in a high pressure X‐ray camera at 20 °C. The new phase crystallizes in the space group P31m with Z=1.
ChemInform Abstract: Ab initio Studies on Silicon Compounds. Part 2. On the Gauche Structure of the Parent Polysilane.
Authors: TERAMAE H. , TAKEDA K. 
Published: May 2016

AbstractStudies of the electronic structure of the parent polysilanes with trans and gauche conformations employing the ab initio Hartree‐Fock crystal orbital method with standard STO‐3G and DZ basis sets show the trans conformer to be more stable by 0.15 kcal/mol per SiH2 unit.
ChemInform Abstract: Achievement of Incident Photon to Electric Current Conversion Yields Exceeding 80% in the Spectral Sensitization of Titanium Dioxide by Coumarin.
Authors: ENEA O. , MOSER J. , GRAETZEL M. + 
Published: May 2016

AbstractThe laser dye coumarin 343 (I) displays an extraordinarily high efficiency in the spectral sensitization of "fractal"‐type anatase films.
ChemInform Abstract: Thermal Behavior of the Hydrogen Sulfates of Magnesium, Calcium, Strontium, and Barium.
Authors: KEMNITZ E. , HASS D. , FEIST M. , WORZALA H. , MENZ D. , BAEKER CH. 
Published: May 2016

AbstractFrom the DTA and TG curves it is concluded that the solvent‐free hydrogensulfates of the alkaline‐earth metals thermally decompose according to the scheme.
ChemInform Abstract: Cycloadditions in Syntheses. Part 37. Syntheses of 6‐Trifluoromethyl‐1,2,4‐triazines and ‐1,2,4‐triazin‐5‐ones and Their Pericyclic Reactions with Olefins.
Authors: KATAGIRI N. , WATANABE H. , KANEKO C. 
Published: May 2016

AbstractReaction of methyl trifluoropyruvate (I) with the benzamidrazones (II) leads to the formation of the triazinones (III).
ChemInform Abstract: Fragmentation of 1,1,3‐Triethoxypropanes Initiated by Boron Trifluoride.
Authors: PESAKHOVICH M. L. , SALITRA I. S. , NASYROV I. M. 
Published: May 2016

AbstractIn the presence of a Lewis acid such as BF3 the reaction between the title compounds (I) and the dithiol (II) proceeds via fragmentation of the C(2)‐C(3) bond of (I) to give the benzodithiepin (III).
ChemInform Abstract: ortho‐Alkylation of Phenol by 2‐Hexene and 2‐Octene in the Presence of Aluminum Phenolate.
Authors: KOZLIKOVSKII YA. B. , KOSHCHII V. A. , OVSIYUK T. F. 
Published: May 2016

AbstractThe reaction between phenol (I) and 2‐hexene (IIa) or 2‐octene (IIb) is investigated in order to compare the reactivities of (II) with those of 1‐hexene or 1‐octene.
ChemInform Abstract: Reaction of Propiolic Acid with Thio Acids.
Authors: VOLKOV A. N. , VOLKOVA K. A. 
Published: May 2016

AbstractIn the absence of basic catalysts such as tBuOK, MeONa or piperidine, the reaction between thioglycolic acid (I) or thiolactic acid (IV) and propiolic acid (II) proceeds without cyclization to yield the trans adduct (III) or the cis adduct (V).
ChemInform Abstract: Syntheses and Biological Activity of 5‐(1,2‐Dihydro‐5‐acenaphthylenyl)‐4,5‐dihydro‐3‐phenyl‐1H‐pyrazole and 4‐((1,2‐Dihydro‐5‐acenaphthylenyl)azo)‐3,5‐dimethyl‐1H‐pyrazole and Related Systems.
Authors: HAVALDAR F. H. , FERNANDES P. S. 
Published: May 2016

AbstractCondensation reaction of the dihydroacenaphthenecarbaldehyde (II) with acetophenone (I) and subsequent cyclization with the hydrazines (IV) yield the dihydropyrazoles (V).
ChemInform Abstract: Synthesis and Spectroscopic Properties of Furylpyridines, Pyrylium, and Pyridinium Salts.
Authors: NOVIKOV V. N. , TYMYANSKII YA. R. , FEIGEL'MAN V. M. , KNYAZHANSKII M. I. 
Published: May 2016

AbstractCyclization of the δ‐diketones (I) or coupling of benzalacetophenone (III) with the acetylfuran (IV) gives the pyrylium salts (II) and (V) which are transformed into the corresponding pyridines and N‐methylpyridinium perchlorates by common methods.
ChemInform Abstract: Quinolin‐4(1H)‐ones versus Azetidin‐2‐ones: Selectivity of Cyclization of 3‐Arylaminopropanoic Acids on Heating with Polyphosphoric Acid.
Authors: KAVRAKOVA I. , SIMOVA E. , KURTEV B. 
Published: May 2016

AbstractPPA‐induced cyclization of the threo‐diphenylpropanoic acids (I) leads to the products (II)‐(V).
ChemInform Abstract: The Effect of Sulfur Dioxide on the Mannich Reactions of Phenols.
Authors: FAIRHURST R. A. , HEANEY H. , PAPAGEORGIOU G. , WILKINS R. F. 
Published: May 2016

AbstractThe aminomethylation of various phenols, e.g. (I) or (IX), is performed using the formaldehyde aminals (II) or O,N‐acetals such as (VII) or (VIII).
ChemInform Abstract: Synthesis and Structure of 2,4,6,8‐Tetrakis(diisopropylamino)‐2,4,6,8‐tetrabora‐tricyclo‐(3.3.0.03,7)‐octane.
Authors: KRAEMER A. + , PRITZKOW H. , SIEBERT W. 
Published: May 2016

Abstract(I) is catalytically dimerized to the tetraborocine (II), which thermally or photochemically (0 °C, 90% yield) rearranges to give the title compound (III).
ChemInform Abstract: Synthesis of α‐, γ‐Phosphorus Functionalized Alkyl Lithium Species; X‐Ray Structures of ((Li(L)(CH2PMeR))2) (L: NNN′N′‐tetramethylethylenediamine (tmen), R: Me or Ph; L: (‐)sparteine, R: Ph) and Cyclic (Li(tmen)(CH(SiMe3)C6H4PPh2‐o)).
Authors: BYRNE L. T. , ENGELHARDT L. M. , JACOBSEN G. E. , LEUNG W.‐P. , PAPASERGIO R. I. , RASTON C. L. , SKELTON B. W. , TWISS P. , WHITE A. H. 
Published: May 2016

AbstractThe title compounds (IV) are dimeric in the solid state, adopting either chair or boat conformation.
ChemInform Abstract: Novel Sponge‐Derived Amino Acids. Part 5. Structures, Stereochemistry, and Synthesis of Several New Heterocycles.
Authors: ADAMCZESKI M. , QUINOA E. , CREWS P. 
Published: May 2016

AbstractThe bengamides A (Ia), E (Ib), C (II) and their N‐methyl analogues, isobengamide E (III), the compounds (IV) and (V) and the known bengazoles (VI) are isolated from an undescribed Jaspidae sponge, which has been collected in the Benga lagoon of the Fiji Islands.
ChemInform Abstract: New Methods and Reagents in Organic Synthesis. Part 77. Efficient Total Synthesis of Didemnins A and B.
Authors: HAMADA Y. , KONDO Y. , SHIBATA M. , SHIOIRI T. 
Published: May 2016

AbstractReaction of the esters (VI) and (XII) with the corresponding amino acids and subsequent work‐up gives the synthons (VII) and (XIII), respectively.
ChemInform Abstract: Synthetic Studies on 1‐Carbacephem Antibiotics: New Synthetic Approach to 3H‐Carbacephems.
Authors: MOCHIDA K. , HIRATA T. 
Published: May 2016

AbstractThe aminomalonates (I) react with the dimethoxybutenal (II), forming the azabutadiene intermediate (III) which undergoes (2 + 2)cycloaddition with the ketene, derived from the acetyl chloride (IV), to give the β‐lactams (V).
ChemInform Abstract: Acyclic Stereoselection. Part 45. Synthesis of η1 Oxygen‐Bound Rhodium Enolates. Applications to Catalytic Aldol Chemistry.
Authors: SLOUGH G. A. , BERGMAN R. G. , HEATHCOCK C. H. 
Published: May 2016

AbstractOxygen‐bound rhodium enolate complexes (III) are prepared by metathesis of the Rh(I) halides (I) and potassium enolates (II).
ChemInform Abstract: Facile Synthesis of γ,δ‐Unsaturated β‐Azido Carbonyl Compounds via Successive Nucleophilic Additions on Cinnamaldehyde Dimethyl Acetal Catalyzed by Trityl Hexachloroantimonate.
Authors: MUKAIYAMA T. , LEON P. , KOBAYASHI S. 
Published: May 2016

AbstractCinnamaldehyde dimethyl acetal (I) reacts with the silyl enol ethers (II) in the presence of a catalytic amount of trityl hexachloroantimonate to give the intermediate compounds (III).
ChemInform Abstract: Asymmetric Oxidation of Sulfides, Catalyzed by Chloroperoxidase.
Authors: COLONNA S. , GAGGERO N. , MANFREDI A. , CASELLA L. , GULLOTTI M. 
Published: May 2016

AbstractOxidation of the sulfides (I) with tert‐butyl hydroperoxide in the presence of a heme protein catalyst yields the (R)‐sulfoxides (IIa) ‐(IId).
ChemInform Abstract: Perchlorocoronene: A Novel Host Precursor.
Authors: BAIRD T. , GALL J. H. , MACNICOL D. D. , MALLINSON P. R. , MICHIE C. R. 
Published: May 2016

AbstractChlorination of coronene (I) gives perchlorocoronene (II) which is substituted with the sodium arenethiolates (III), producing the dodecakis‐(arylthio)coronenes (IV).
ChemInform Abstract: Enantiospecific and Stereospecific Rhodium(I)‐Catalyzed Carbonylation and Ring Expansion of Aziridines. Asymmetric Synthesis of β‐Lactams and the Kinetic Resolution of Aziridines.
Authors: CALET S. , URSO F. , ALPER H. 
Published: May 2016

AbstractRh(I) complexes such as (Rh(CO)2Cl)2 catalyze the regiospecific ring expansion‐carbonylation reaction of aziridines (I) to β‐lactams (III).
ChemInform Abstract: Intramolecular Hydrogen Bond in 1‐Vinylpyrazole‐5‐carboxylates.
Authors: TSERUNYAN V. V. , ASRATYAN G. V. , DARBINYAN E. G. 
Published: May 2016

AbstractMercury‐catalyzed coupling of the pyrazolecarboxylates (I) with vinyl acetate (II) yields mixtures of the N‐vinyl derivatives (III) and (IV) which are separable by distillation.
ChemInform Abstract: Role Reversal in the Cyclocondensation of Cyclopentadiene with Heterodienophiles Derived from Arylamines and Aldehydes: Synthesis of Novel Tetrahydroquinolines.
Authors: GRIECO P. A. , BAHSAS A. 
Published: May 2016

AbstractBenzylamine hydrochloride (I) reacts with formaldehyde (II) and cyclopentadiene (IV) to give the Diels‐Alder cycloadduct (V) via the intermediate iminium chloride (III).
ChemInform Abstract: Regiochemistry in Pd‐Catalyzed Organotin Reactions with Halopyrimidines.
Authors: SOLBERG J. , UNDHEIM K. 
Published: May 2016

AbstractThe preferences of different positions in the halogen replacements of pyrimidines such as (I), (IV), (VI), (VIII), or (XII) by Pd‐catalyzed reactions with the organotin compounds (II) are investigated and discussed.
ChemInform Abstract: Synthesis of 4‐Aryl‐3,5‐bis(alkoxycarbonyl)‐1,4‐dihydropyrazines.
Authors: CHORVAT R. J. , RORIG K. J. 
Published: May 2016

AbstractIn order to study compounds related to the cardiovascular active agent nifedipine, the 1,4‐dihydropyrazine (IX) is prepared.
ChemInform Abstract: Competitive Uncatalyzed Geometrical Isomerization and β‐Hydride Elimination of Alkyl Complexes of Platinum(II).
Authors: ALIBRANDI G. , CUSUMANO M. , MINNITI D. , MONSU SCOLARO L. , ROMEO R. 
Published: May 2016

AbstractRates and activation parameters for the spontaneous cis to trans isomerization of the monoalkyl complexes (I) giving (II) are measured.
ChemInform Abstract: The Total Syntheses of the Isodityrosine‐Derived Cyclic Tripeptides OF4949‐III and K‐13. Determination of the Absolute Configuration of K‐13.
Authors: EVANS D. A. , ELLMAN J. A. 
Published: May 2016

AbstractThe total syntheses of OF4949‐III (VII) and K‐13 (XI), both known to be enzyme inhibitors, are achieved via the common intermediate (IV).
ChemInform Abstract: Efficient and Versatile Synthesis of Dipeptide Isosteres Containing γ‐or δ‐Lactams.
Authors: ZYDOWSKY T. M. , DELLARIA J. F. JUN. , NELLANS H. N. 
Published: May 2016

AbstractAlkylation of the oxazolidinone (I) with allyl bromide (III), followed by alkaline hydrolysis and esterification with diazomethane (IV), yields the ester (V) which is converted to the aldehyde (VI) by ozonolysis.
ChemInform Abstract: Selective Oxidations of Olefins Catalyzed by Platinum(II) Complexes. Use of tert.‐Butyl Hydroperoxide and Potassium Caroate as Oxidants: Ketone vs Epoxide Formation.
Authors: STRUKUL G. , SINIGALIA R. , ZANARDO A. , PINNA F. , MICHELIN R. A. 
Published: May 2016

AbstractFour low‐cost oxidants are tested in the oxidation of olefins (such as 1‐octene, styrene) catalyzed by either (cis‐PtL(CF3)(CH2Cl2))BF4 or cis‐PtL(CF3)(OH) (L: cis‐Ph2P‐CH=CH‐PPh2) under mild conditions.
ChemInform Abstract: α‐Hydroxylation of Carboxylic Acids and Amides Using Bis(trimethylsilyl) Peroxide.
Authors: POHMAKOTR M. , WINOTAI C. 
Published: May 2016

AbstractThe carboxylic acids (I) and the amides (V) are hydroxylated in α‐position by consecutive lithiation and treatment with bis(trimethylsilyl) peroxide, producing the α‐hydroxy acids (II) or amides (VI).
ChemInform Abstract: Dual Regioselectivity in the Photoallylation of Electron‐Deficient Alkenes by Allylic Silanes.
Authors: MIZUNO K. , IKEDA M. , OTSUJI Y. 
Published: May 2016

AbstractThe allylsilane (II) reacts with the dicyanoethylene compounds (I) under irradiation to give the allylation products (III).
ChemInform Abstract: Diels‐Alder Reaction of Chiral Acrylamide and a Convenient Synthesis of Optically Pure Methyl (3R,4R,6R)‐Bicyclo(2.2.1)heptene‐4‐carboxylate.
Authors: KISHIKAWA K. , YAMAMOTO M. , KOHMOTO S. , YAMADA K. 
Published: May 2016

AbstractLewis acid‐induced Diels‐Alder reaction of cyclopentadiene (I) with the chiral acrylic urea (II) yields the amidonorbornenes (III) and (IV).
ChemInform Abstract: Rhodium Carbenoid‐Mediated Cyclizations. Synthesis and X‐Ray Structures of Cyclic Sulfoxonium Ylides.
Authors: MOODY C. J. , SLAWIN A. M. Z. , TAYLOR R. J. , WILLIAMS D. J. 
Published: May 2016

AbstractThe ω‐sulfinyl‐α‐diazo‐β‐keto esters (I) and (III), prepared from the corresponding sulfides by oxidation with MCPBA, cyclize in the presence of Rh catalysts to give the sulfoxonium ylides (II) and (IV).