bluuebunny/crossref_metadata_2025 huggingface dataset:
ChemInform Abstract: Reactivities of Stable Rotamers. Part 24. Formation of Isomeric Ketones by Cyclization of Rotameric 3‐Methyl‐3‐(1,2,3,4‐tetrahalo‐9‐triptycyl)butanoyl Chloride and Barriers to Isomerization of the Ketones.
Authors: OKI M. , TANUMA T. , TANAKA Y. , YAMAMOTO G.
Published: May 2016

The rotameric alkenyltriptycenes (III) and (IV) isomerize in boiling 1‐chloronaphthalene and serve to prepare the ketones (VII) and (VIII) via carboxylic acids (V) (and their rotamers, from (III)).
ChemInform Abstract: Design and Synthesis of New Ferroelectric Liquid Crystals. Part 5. Properties of Some Chiral Fluorinated FLCs: A Direct Connection Between Macroscopic Properties and Absolute Configuration in a Fluid Phase.
Authors: WALBA D. M. , RAZAVI H. A. , CLARK N. A. , PARMAR D. S.
Published: May 2016

The basic correctness of the "bent cylinder binding site" model for packing in the smectic C* phase and its usefulness for stereochemical assignments are demonstrated.
ChemInform Abstract: Descriptive Photochemistry and Electronic Structure of the Cp2MoO and (MeCp)2MoO Complexes (Cp: η5‐C5H5; MeCp: η5‐CH3C5H4).
Authors: SILAVWE N. D. , BRUCE M. R. M. , PHILBIN C. E. , TYLER D. R.
Published: May 2016

The photochemistry of the title complexes is studied because these complexes are potential photochemically activated oxygenating agents.
ChemInform Abstract: Neighboring Hydroxyl Group Participation in Metal‐Ammonia Reduction of Spirocyclic Dienones.
Authors: IWATA C. , YAMADA M. , IDA Y. , IMAO T. , MIYAGAWA H. , MIYASHITA K.
Published: May 2016

Reduction of the spirodienone (I) yields the hydroxyspirodienone (II) which is reduced with alkali metals in liquid ammonia to form the hydroxyenones (III) and (IV).
ChemInform Abstract: The Reaction of Organoboranes with Trimethylsilyl Azide in a Neutral Medium: Synthesis of Primary Amines.
Authors: KABALKA G. W. , GOUDGAON N. M. , LIANG Y.
Published: May 2016

The terminal olefins (Ia) ‐ (Id) are hydroborated and then directly treated with trimethylsilyl azide (II), yielding the primary amines (IIIa) ‐ (IIId).
ChemInform Abstract: A Protodesilylation Route for 2‐Aza‐1,3‐diene Synthesis.
Authors: CHEN S.‐F. , HO E. , MARIANO P. S.
Published: May 2016

Starting from propargyl amine (I), the imine (V) and its allyl analogue (VII) are prepared.
ChemInform Abstract: Competitive Dienone‐Phenol Type Rearrangements for the Regioselective Preparation of 2,4‐Disubstituted Naphth‐1‐ols.
Authors: DODGE J. A. , CHAMBERLIN A. R.
Published: May 2016

Naphthoquinone (I) is converted to the diols (V) via consecutive twofold alkylation/arylation.
ChemInform Abstract: Synthesis of Pyrido(1,2‐b)pyrazol‐2‐ones and Study of Their Fluorescent Properties.
Authors: RANGNEKAR D. W. , PHADKE R. C.
Published: May 2016

Cyclocondensation of the N‐amino‐3‐cyanopyridone (I) with the acetates (II) produces the bicyclic compounds (III).
ChemInform Abstract: Synthesis and Thermal Reactions of 1,2‐Dihydro‐1,2,4‐benzotriazines.
Authors: KING F. D.
Published: May 2016

The title compounds (IV) are prepared for the first time as depicted in the scheme.
ChemInform Abstract: An Improved Preparation of Cyclopropylphosphonates and Their Application in Arylmethylenecyclopropane Formation.
Authors: LEWIS R. T. , MOTHERWELL W. B.
Published: May 2016

Cyclopentene (I) and the dihydropyran (Ib) are coupled with diethyl diazomethylphosphonate (II), yielding the fused cyclopropylphosphonates (III).
ChemInform Abstract: Platina(IV)cyclopentanes. Stereoselective Synthesis and Structural Characterization of Trisubstituted Platinacyclopentanes.
Authors: NEILSEN W. D. , LARSEN R. D. , JENNINGS P. W.
Published: May 2016

On the reaction of the epimeric hydrocarbons (IIa) + (IIb) with the Zeise's dimer (III), the Pt(II) readily oxidatively adds the 1,2,3‐trisubstituted cyclopropanes with kinetic preference for the syn isomer effecting an epimeric separation.
ChemInform Abstract: Synthesis of Ketofuranosides by Epoxidation‐Ring Closure of Enol Ethers.
Authors: BOSCHETTI A. , PANZA L. , RONCHETTI F. , RUSSO G. , TOMA L.
Published: May 2016

The Z‐ and E‐hydroxy enol ethers (I) and (IV), obtained from aldoses, react according to A)‐C) to afford the ketofuranosides (II), (III), (V) or (VI) in moderate to good yields with good stereoselectivities.
ChemInform Abstract: Synthesis of Thyroid Hormone Analogues. Part 2. Oxidative Coupling Approach to SK&F L‐94901.
Authors: HICKEY D. M. B. , LEESON P. D. , CARTER S. D. , GOODYEAR M. D. , JONES S. J. , LEWIS N. J. , MORGAN I. T. , MULLANE M. V. , TRICKER J. Y.
Published: May 2016

A novel approach to the synthesis of the title compound (VII), a novel, selective and potent thyromimetic, is described the key step being the formation of the hindered diaryl ether moiety by oxidative coupling of the phenols (IV) and (V).
ChemInform Abstract: Bolaform and Classical Cationic Metallomicelles as Catalysts of the Cleavage of p‐Nitrophenyl Picolinate (II).
Authors: FORNASIER R. , SCRIMIN P. , TECILLA P. , TONELLATO U.
Published: May 2016

Bolaform micelles made of both ligand surfactants (Ib) and (Ic) in the presence of Cu(II) or Zn(II) are good catalysts for the hydrolysis of (II).
ChemInform Abstract: Co(III) Complex Promoted Hydrolysis of Phosphate Diesters: Comparison in Reactivity of Rigid cis‐Diaquotetraazacobalt(III) Complexes.
Authors: CHIN J. , BANASZCZYK M. , JUBIAN V. , ZOU X.
Published: May 2016

The complexes (I)‐(III) are ideal for evaluating a structure‐reactivity relationship since they are held rigidly in the cis form and cannot undergo isomerization processes.
ChemInform Abstract: Metal to Ligand Charge‐Transfer Photochemistry of Metal‐Metal‐Bonded Complexes. Part 7. Photochemistry of (CO)4CoM(CO)3(bpy) (M: Mn, Re; bpy: 2,2′‐Bipyridine): Photocatalytic Disproportionation of the Manganese Complex in the Presence of PR3.
Authors: VAN DIJK H. K. , VAN DER HAAR J. , STUFKENS D. J. , OSKAM A.
Published: May 2016

All photochemical reactions of the compounds (I) proceed via homolytic splitting of the metal‐metal bond.
ChemInform Abstract: Photochemistry of Matrix‐Isolated o‐Phthalaldehyde.
Authors: GEBICKI J. , KUBERSKI S.
Published: May 2016

Photolysis of o‐phthalaldehyde (I) gives the E‐enol (II).
ChemInform Abstract: Thermal Oxidative Deamination of Aliphatic Amines to Aldehydes with Bis(diphenylphosphinyl) Peroxide.
Authors: MASSE G. , STURTZ G.
Published: May 2016

The activated secondary amines (VI), prepared from the primary amines (II) via the N‐alkylphosphoric amides (V), react with bis(diphenylphosphinyl) peroxide to form the aldimines (VII).
ChemInform Abstract: Synthesis and Reactive Behavior of 3,3‐Diaminoacrylic Acid Derivatives.
Authors: AUGUSTIN M. , GUENTHER E. +
Published: May 2016

Treatment of the 1,3‐dioxane‐4,6‐dione (I) with alkanols, e.g. with EtOH (II), in the presence of conc.
ChemInform Abstract: Keto Acids and Lactones. Part 2. Synthesis of γ‐Butyrolactones, Quinoxalines, and Azauracils from 4‐Aryl‐2‐oxobutanoic Acid Derivatives.
Authors: LABIB G. H. , ABDEL RAHMAN M. , EL‐KILANY Y. , EL‐MASSRY A. I. , EL‐ASHRY E. S. H.
Published: May 2016

Condensation of the acids (I) with the aromatic aldehydes (II) affords the γ‐butyrolactones (III) which occur as equilibria of tautomers in solution.
ChemInform Abstract: Carbene Complex‐Promoted Ring Expansion of Aziridine: Formation of the 1‐Azabicyclo(4.3.0) Ring System by a Double Alkyne and a Single Carbon Monoxide Insertion Reaction.
Authors: DENISE B. , PARLIER A. , RUDLER H. , VAISSERMANN J. , DARAN J. C.
Published: May 2016

The chromium carbene complex (I) is coupled with the aziridine (II) to give the E‐ and Z‐isomers (III) and (IV) which react with diphenylacetylene (V), producing the heterocyclic chromium carbonyl complex (VI).
ChemInform Abstract: Synthesis of Tetrathiafulvalene (TTF) Derivatives Bearing Long Alkyl Chains.
Authors: DHINDSA A. S. , BRYCE M. R. , LLOYD J. P. , PETTY M. C. , KOBAYASHI K. , TUKADA H.
Published: May 2016

The dithiocarbonates (I), prepared from potassium O‐ethyl xanthate and the corresponding bromo ketones, cyclize upon treatment with phosphorus pentasulfide, forming the 1,3‐dithiole‐2‐thiones (II).
ChemInform Abstract: A New Route to 2,3‐Disubstituted Pyrazines. Regioselective Metalation of Chloropyrazine.
Authors: TURCK A. , MOJOVIC L. , QUEGUINER G.
Published: May 2016

Direct lithiation of chloropyrazine (I) followed by reaction with various electrophiles, e.g. (II), (IV), and (VI), gives 2‐substituted 3‐chloropyrazines such as (III), (V), and (VII).
ChemInform Abstract: Synthesis of Trifluoromethylated Pyrazine‐Containing Nitrogen Heterocycles from Trifluoropyruvaldehyde and ortho‐Diamines: Scope and Regiochemistry.
Authors: CUSHMAN M. , PATEL H. , MCKENZIE A.
Published: May 2016

Hydrolysis of the trifluorodibromoacetone (II) and subsequent cyclocondensation with the primary diamines (I) or (IV) yield the quinoxaline derivatives (III) or a mixture of the isomeric trifluoromethylpteridinediones (V) and (VI).
ChemInform Abstract: Photochemistry of 2′‐Substituted 1,2,3,4‐Tetrahydronaphthalene‐1‐spiro‐3′‐oxaziridines. Variable‐Temperature 1H Nuclear Magnetic Resonance Spectroscopy of 1‐Substituted 1,3,4,5‐Tetrahydro‐2H‐1‐benzazepin‐2‐ones.
Authors: JOHNSON G. P. , MARPLES B. A.
Published: May 2016

On irradiation, the title oxaziridines (I) in which the N‐substituent is syn to the aromatic ring, rearrange less regioselectively than their anti isomers.
ChemInform Abstract: Synthesis of Methyl 3‐Diphenylphosphinylamino‐3‐phenylpropionate.
Authors: KRZYZANOWSKA B.
Published: May 2016

The title compound (III) is prepared by Reformatsky reaction between the phosphinamide (I) and methyl bromoacetate (II).
ChemInform Abstract: pπ‐pπ Bonding Between Phosphorus and Sulfur: Synthesis and Characterization of a Dithiaphospholium Cation.
Authors: BURFORD N. , ROYAN B. W. , LINDEN A. , CAMERON T. S.
Published: May 2016

Chloride ion abstraction reaction is employed to obtain the first isolated examples (III) of a dicoordinate phospholium cation.
ChemInform Abstract: An Equilibrium Involving Edge‐ and Face‐Shared Bioctahedral d3‐d3 Ditungsten Complexes: W2Cl6(PEt3)4 and W2Cl6(PEt3)3.
Authors: CHACON S. T. , CHISHOLM M. H. , STREIB W. E. , VAN DER SLUYS W.
Published: May 2016

The molecular structure determination of the product (III) (space group P21/n, Z=4) shows this to be a member of the family of edge‐shared bioctahedra.
ChemInform Abstract: Synthesis and Reactivity of Silyliron Porphyrin Complexes.
Authors: KIM Y. O. , GOFF H. M.
Published: May 2016

The first silyliron porphyrin complexes, the paramagnetic compound (I) and the corresponding diamagnetic silyliron(II) porphyrin anion, are reported.
ChemInform Abstract: Characterization of a Novel μ4‐Peroxide Tetrairon Unit of Possible Relevance to Intermediates in Metal‐Catalyzed Oxidations of Water to Dioxygen.
Authors: MICKLITZ W. , BOTT S. G. , BENTSEN J. G. , LIPPARD S. J.
Published: May 2016

The complex (II) is prepared by ligand substitution from (I) and can also be obtained from a MeCN solution of (NEt4)2‐(Fe2OCl6) and Zn benzoate and H2O2 with 84% yield.
ChemInform Abstract: Effects of Transition‐Metal Ions on the Reduction of Di‐2‐pyridyl Ketone with Sodium Borohydride.
Authors: SUH M. P. , KWAK C.‐H. , SUH J.
Published: May 2016

The Co(II) complexes (I), (IV), and (V) of the title ketone (III), its hydrated and its hydrogenated derivative are obtained according to the scheme and characterized by IR and UV/VIS spectral data as well as molar conductance measurements.
ChemInform Abstract: Luminescent Tetrametallic Complexes of Ruthenium.
Authors: MURPHY W. R. JUN. , BREWER K. J. , GETTLIFFE G. , PETERSEN J. D.
Published: May 2016

The tetrametallic Ru complexes (III) and (V) are prepared according to the scheme.
ChemInform Abstract: A Rhodium Complex That Combines Benzene Activation with Ethylene Insertion. Subsequent Carbonylation and Ketone Formation.
Authors: GHOSH C. K. , GRAHAM W. A. G.
Published: May 2016

UV irradiation of a degassed benzene solution of the Rh(I) complex (I) results in complete conversion to the phenyl‐Rh(III) complexes (IIIa) and (IIIb) in approximately equal yield.
ChemInform Abstract: Electrochemical Investigation of Kinetic and Thermodynamic Aspects of Oxidation and Reduction of Mononuclear and Binuclear Rhodium Dithiocarbamate and Diselenocarbamate Complexes.
Authors: BOND A. M. , COLTON R. , MANN D. R.
Published: May 2016

The oxidation processes of the complexes (I) and (II) at a Pt electrode are similar to the previously reported oxidation of their Co analogues, although the Rh(IV) dithiocarbamates are less stable.
ChemInform Abstract: Synthesis of Fagaronine.
Authors: SMIDRKAL J.
Published: May 2016

For the synthesis of the title compound (X) from the naphthalene (I) three different pathways, one of which is outlined in the scheme, are investigated.
ChemInform Abstract: Stereospecificity in the Synthesis of C‐5 Modified Nucleosides Using Radical Chemistry: Furanosidic Chain‐Lengthening Through C‐4.
Authors: BARTON D. H. R. , GERO S. D. , QUICLET‐SIRE B. , SAMADI M.
Published: May 2016

The 2‐thiopyridone derivative (I) of glucuronic acid undergoes photochemical decarboxylation and insertion of the alkenes (II), producing the thioethers (III).
ChemInform Abstract: Syntheses of Pterocarpans. Part 2. Synthesis of Both the Enantiomers of Pisatin.
Authors: MORI K. , KISIDA H.
Published: May 2016

Natural pisatin (+)‐(VIII), and antifungal phytoalexin, and its unnatural isomer (‐)‐(VIII) are prepared starting from the known isoflavone (I) via resolution of the racemate (IV).
ChemInform Abstract: Interaction of the Iron(III) Complex of N‐(2‐((o‐Hydroxyphenyl)glycino)ethyl)salicylideneamine with Catechol and Cyanide: A Model for the Binding Site in the Dioxygenase Enzymes.
Authors: SPARTALIAN K. , CARRANO C. J.
Published: May 2016

Catechol appears to bind to the Fe center in a bidentate mode (binding constant given).
ChemInform Abstract: Chemistry and Structure of Phosphides and Polyphosphides. Part 50. K4P3, a Compound with the P4‐ 3 Radical Anion.
Authors: VON SCHNERING H. G. , HARTWEG M. , HARTWEG U. , HOENLE W. +
Published: May 2016

Single crystals of the title compound are mechanically separated from the product of the reaction of red phosphorus with excess potassium (400 °C, Nb‐ampoules, argon atmosphere; attention the K: P > 1 product can decompose explosively).
ChemInform Abstract: Trigonal Sites of Eu2+ in Single Crystals of Cs2NaYCl6.
Authors: MONDRAGON M. A. , GLEASON R. J. , MUNOZ P. E. , BOLDU J. L.
Published: May 2016

EPR spectroscopic results obtained for Eu2+‐doped Cs2NaYCl6 single crystals reveal that the local crystalline electrical field symmetry at Eu2+ is trigonal.
ChemInform Abstract: Preparation, Crystal Structure and Magnetic Properties of Dy5Ru19P12 and Isotypic Lanthanoid Ruthenium Phosphides.
Authors: GHETTA V. , CHAUDOUET P. , MADAR R. , SENATEUR J. P. , LAMBERT‐ANDRON B.
Published: May 2016

The new phosphides Ln5Ru19P12 (Ln: Y, La, Ce, Pr, Nd, Sm, Gd, Tb, Dy, Ho, Er, and Yb) are prepared by reacting stoichiometric amounts of the elements (evacuated silica tube, 1000 K, 24 h; subsequent annealing of pressed pellets at 1700 K for 4 h).
ChemInform Abstract: Effect of H2S Concentration and pH on Hydrogen Permeation in AISI 410 Stainless Steel in 5% NaCl.
Authors: TURNBULL A. , SAENZ DE SANTA MARIA M. , THOMAS N. D.
Published: May 2016

Permeation studies in NaCl solutions containing varying levels of H2S at pH values in the range 2.6‐4.6 show that the hydrogen permeation currents increase with increasing H2S concentration and decreasing pH, as expected, but the permeation transients are strongly influenced by both irreversible and reversible trapping.
ChemInform Abstract: Effect of Samarium on the Thermal Stability and Activity of the Mn/Ag Catalyst in the Oxidation of CO.
Authors: IMAMURA S. , YOSHIE S. , ONO Y.
Published: May 2016

Mn/Ag (molar ratio 80/20) and Mn/Ag/Sm (80/20/5) composite catalysts are treated at high temp. under a reducing atmosphere (400‐950 °C, 98% N2/2% CO, 3 h) and subsequently used for CO oxidation (reaction mixture: 1% CO, 18% O2, 81% N2).
ChemInform Abstract: The Behavior of Some Selenoglycolic Acid Derivatives in Aqueous Solutions and Spectrophotometric Determination of Constants of the System Pd(II)/Ethylene‐bis‐selenoglycolic Acid.
Authors: PITOMBO L. R. M. , FLUMIGNAN E.
Published: May 2016

Preliminary studies of the interactions between the title acids (I) and (II) and some metal ions are carried out.
ChemInform Abstract: Palladium(0)‐Catalyzed Cyclizations of Simple 1‐Aryl‐1,7‐octadien‐3‐yl Acetates.
Authors: OPPOLZER W. , SWENSON R. E. , PACHINGER W.
Published: May 2016

Grignard reaction of the E‐configurated cinnamaldehydes (I) with pent‐4‐enylmagnesium bromide (II), followed by acetylation, yield the dienyl acetates (IV).
ChemInform Abstract: A Michael Addition and Peterson Olefination Sequence Using 1‐Silylethenyl Sulfides and Sulfoxide.
Authors: KANEMASA S. , KOBAYASHI H. , TANAKA J. , TSUGE O.
Published: May 2016

Reaction of the organolithiums (II) with the trimethylsilylethenyl sulfide (I) produces the cyclopropanes (III), while the same reaction with the ethenyl sulfides (IV), bearing a bulkier silyl moiety, results ‐ after quenching with benzaldehyde (V) ‐ in the formation of the Michael adducts (VI) and the vinyl sulfides (VII).
ChemInform Abstract: Copper‐ and Nickel‐Catalysis in SN2′‐ and SN2‐Regioselective Allylation of Organozinc Reagents.
Authors: SEKIYA K. , NAKAMURA E.
Published: May 2016

The allylic chlorides (I) are coupled with the organozinc chlorides (II) in the presence of a copper(I) catalyst, yielding the rearranged substitution products (III), together with only minor amounts of the normal SN2 products (IV).
ChemInform Abstract: Mild Dehydration Using Trichlorotrifluoroacetone.
Authors: ABDEL‐BAKY S. , MOUSSA A.
Published: May 2016

Dehydration of primary and secondary alcohols is achieved via hemiacetal formation with trichlorotrifluoroacetone, followed by acid‐induced cleavage and elimination of water.
ChemInform Abstract: Dodecahedrane. Improved Synthetic Access to, and Monofunctionalization of, the Spherical Hydrocarbon. Spectral Properties of the Derivatives.
Authors: PAQUETTE L. A. , WEBER J. C. , KOBAYASHI T. , MIYAHARA Y.
Published: May 2016

Initially described are several improvements in the synthesis of dodecahedrane precursors and dodecahedrane (XIII) itself.
ChemInform Abstract: Improved Synthesis of trans‐4‐Diethylaminocinnamaldehyde.
Authors: CHAO H. S.‐I.
Published: May 2016

Several methods of preparing the aldehyde (III) mentioned in the title are tested.
ChemInform Abstract: Synthesis of Aliphatic Amines Related to Monodansylcadaverine via the Oxidative Rearrangement of Aliphatic Amides with Phenyliodosyl Bis‐(trifluoroacetate).
Authors: PAVLIDIS V. H. , CHAN E. D. , PENNINGTON L. , MCPARLAND M. , WHITEHEAD M. , COUTTS I. G. C.
Published: May 2016

The ω‐(acylamino)caproic acids (III), prepared from the carboxylic or sulfonic acid chlorides (I) and the amino acid (II), are heated with urea (IV) to produce the amides (V).
ChemInform Abstract: Direct Preparation of Substituted Olefins from Epoxides Utilizing Lithium Tetraalkylcerate.
Authors: UKAJI Y. , FUJISAWA T.
Published: May 2016

Various oxiranes are cleaved upon treatment with tetraalkylcerates to give alkylated olefins.
ChemInform Abstract: Optically Active Transition Metal Complexes. Part 45. Optically Pure 3a,4,5,6,7,7a‐Hexahydro‐2‐phenyl‐4,7‐methano‐1H‐inden‐1‐one by Asymmetric Khand Reaction.
Authors: BLADON P. , PAUSON P. L. , BRUNNER H. , EDER R.
Published: May 2016

Reaction of the optically active phosphane (II) with the prochiral cobalt complex (I) gives a mixture of the diastereoisomers (III) and (IV) which can be separated by preparative liquid chromatography.
ChemInform Abstract: Epoxy‐Epimination of Cyclic Conjugated Dienes. Part 5. Epoxy‐Epimination of 1,3 Cyclic Dienes.
Authors: VIEHE H. G. , VAERMAN J.‐L.
Published: May 2016

In the presence of NEt3 the reaction between the homologous oxazine hydrochlorides (Ia)‐(Id) and β‐chloro‐α‐tert.‐butyl‐thioacrylonitrile (II) affords the N‐substituted derivatives (III).
ChemInform Abstract: Highly Regioselective Formation of Bromohydrins by Reaction of Epoxyazetidinones with MgBr2: An Alternative Route to 4‐Bromomethylcarbonylmethyl‐2‐azetidinone, a Key Carbapenem Precursor.
Authors: UEDA Y. , MAYNARD S. C.
Published: May 2016

The epoxypropylazetidinone (IIa), prepared from the acetoxyazetidinone (I), is selectively cleaved upon treatment with magnesium bromide, producing the diastereomeric bromohydrins (III).
ChemInform Abstract: Reactions of Substituted N‐(5‐Nitro‐2‐furfuryl)anilines.
Authors: MOCELO R. , KOVAC J.
Published: May 2016

Nitrosation of the N‐(5‐nitro‐2‐furfuryl)anilines (I) with sodium nitrite (II) yields the N‐nitroso compounds (III) which do not undergo a Fischer‐Hepp rearrangement upon treatment with hydrochloric acid, but give the hydrochlorides (IV) of the starting amines (I) instead.
ChemInform Abstract: Stereoselective Acetalization of 1,1‐ and 1,2‐Disubstituted Diols as a Common Principle in the Synthesis of the Enantiomers of the Bicyclic Acetal Pheromones endo‐ and exo‐Brevicomin and Frontalin.
Authors: WERSHOFEN S. , CLASSEN A. , SCHARF H.‐D.
Published: May 2016

The acetalization of the diols (I) (obtainable by reaction sequences starting from appropriate oxiranes) with the ketone (II) gives rise to mixtures of the cis‐ (III) and trans‐diastereomers (IV) in ratios depending on the reaction conditions.
ChemInform Abstract: Synthesis of 3‐Substituted 6‐Methyl‐4‐pyridyl‐2(1H)‐pyridones and Testing of Their Cardiovascular Activity.
Authors: HANFELD V. , LEISTNER S. , WAGNER G. , LOHMANN D. , POPPE H. , HEER S.
Published: May 2016

Acidic hydrolysis of the cyanopyridone (I) gives the carboxamide (II) which is converted into the corresponding amine (III) under the conditions of Hofmann degradation.
ChemInform Abstract: Formylation of 2,3‐Dihydro‐4‐methyl‐1H‐1,5‐benzodiazepin‐2‐ones.
Authors: PROSHKINA V. N. , SOLOMKO Z. F. , BOZHANOVA N. YA.
Published: May 2016

Vilsmeier formylation of the 8‐chloro‐4‐methylbenzodiazepinone (I) and subsequent treatment with aqueous ammonia (III) give the pyrido‐fused compound (IV).
ChemInform Abstract: The Amino‐ and Azidoboration of Iminoboranes.
Authors: PAETZOLD P. , MEIER H.‐U. , SCHWAN H. , VON PLOTHO C.
Published: May 2016

Iminoboranes (I) are aminoborated by (II) or azidoborated by (IV) to give the products (III) or (V), respectively.
ChemInform Abstract: Silicon Containing Carbene Complexes. Part 10. Ethoxy‐ and Ethylthio‐(triphenylsilyl) Ketene from Carbene Complexes (CO)5WC(XEt)SiPh3 (X = O, S).
Authors: SCHUBERT U. , KRON J. , HOERNIG H. +
Published: May 2016

Decomposition of the carbene complex (I) is accelerated in pentane, yielding a mixture of the ketene (III) and the metal complex (IV).
ChemInform Abstract: Eight‐Coordination of Cadmium(II) and Secondary Metal‐Ligand Bonds in (Cd(NO3)2(C12H22N6)) and (Cd(C12H22N6)2)(BF4)2.
Authors: STRASDEIT H. , POHL S.
Published: May 2016

The complex (III) with "double‐tetrahedral" eight‐coordination crystallizes in C2/c with Z=4.
ChemInform Abstract: Synthesis and Characterization of Bidentate and Tridentate Semicarbazone and Thiosemicarbazone Complexes of Organolead(IV).
Authors: DIXIT P. , SINGH K. , TANDON J. P.
Published: May 2016

Diphenylleaddichloride (I) reacts with the sodium salt of the ligands (II) to give the complexes (III) and (IV), depending on the molar ratio.
ChemInform Abstract: A Study of Asymmetric Induction During the Addition of Enolate Nucleophiles, Having Sulfoximine Chiral Auxiliaries, to Diene‐Molybdenum and Dienyliron Complexes.
Authors: PEARSON A. J. , BLYSTONE S. L. , NAR H. , PINKERTON A. A. , RODEN B. A. , YOON J.
Published: May 2016

Asymmetric inductions as high as 90% e.e.
ChemInform Abstract: Synthesis of a Chiral Dioxo‐Cyclam Derived from L‐Phenylalanine and Its Application to Olefin Oxidation Chemistry.
Authors: WAGLER T. R. , BURROWS C. J.
Published: May 2016

Starting with L‐phenylalanine (I), the tetramine (VIII) is prepared.
ChemInform Abstract: Metal Complexes with Macrocyclic Ligands. Part 27. Cu2+‐Promoted Hydrolysis of Carboxylic and Phosphonic Acid Esters in the Side Chain of Tetraazamacrocycles.
Authors: TSCHUDIN D. , RIESEN A. , KADEN T. A.
Published: May 2016

The X‐ray structure determination of the complexes (I) (space group P21/n, Z=4) and (II) (C2/c, Z = 8) confirms that the metal ion is pentacoordinated under participation of the functional group.
ChemInform Abstract: Mono and Binuclear Complexes of Heavy Metals with Diamine Derivatives of Triketones.
Authors: AHMAD N.
Published: May 2016

The synthesis of the octahedral Ru(II) and Ru(III) complexes (I) and the binuclear square planar Pd2 and PdCu complexes (II) are described.
ChemInform Abstract: A Five‐Coordinate Pt(II) Complex of Pyridylmethylaminodiacetate.
Authors: WINTER J. A. , LIN F.‐T. , SHEPHERD R. E.
Published: May 2016

The title ligand, prepared by a known method, reacts to give (III), which on mild heating is in equilibrium with (IV).
ChemInform Abstract: Synthesis and Aggregation Behavior of Chiral Phospholipids with Pantoic Acid Backbone.
Authors: GRANZER U. H. , STAATZ I. , ROTH H. J.
Published: May 2016

Pantolactone (I) is used to build up a new class of chiral analogues of diacylglyceroles, e.g. the pentamide esters (VI).
ChemInform Abstract: Enzymatic Reactions in Organic Synthesis. Part 4. Hydrolyses of Diesters.
Authors: DE JESO B. , DROUILLARD S. , DEGUEIL‐CASTAING M. , SAUX A. , MAILLARD B.
Published: May 2016

The enzymatic hydrolysis of the asymmetric diesters (I) is investigated using horse liver esterase as acetonic powder (HLAP) or pig pancreatic lipase (PPL).
ChemInform Abstract: High Accuracy Volumetric Determination of Hydrogen in Rare Earth Hydrides.
Authors: CONDER K. , KALDIS E.
Published: May 2016

A new volumetric method is developed for the determination of the hydrogen content of rare earth hydrides.
ChemInform Abstract: Electronic Structures of the Boron Cage Molecules B4H4, B4Cl4, and B4F4.
Authors: SWANTON D. J. , AHLRICHS R.
Published: May 2016

Ab initio calculations using basis sets with polarization functions at the SCF, CI, and CPF levels of theory to confirm that the Td structures are indeed more stable than D4h ones.
ChemInform Abstract: Quantitative Absorption and Fluorescence Spectroscopy of BCl3 in Vacuum Ultraviolet.
Authors: SUTO M. , YE C. , HAN J. C. , LEE L. C.
Published: May 2016

For BCl3, a visible emission band is observed at excitation wavelengths < 173 nm and two UV emission bands appear at wavelengths < 126.5 nm.
ChemInform Abstract: Studies of Rare‐Earth Stannates by 119Sn MAS NMR. The Use of Paramagnetic Shift Probes in the Solid State.
Authors: GREY C. P. , DOBSON C. M. , CHEETHAM A. K. , JAKEMAN R. J. B.
Published: May 2016

119Sn MAS NMR spectra are reported for a series of lanthanoid stannates with pyrochlore structure, Ln2Sn2O7 (Ln: La, Pr, Nd, Sm, Eu, Tm, Yb, Lu, and Y).
ChemInform Abstract: Electrical Characterization of La2‐xSrxCuO4‐y Superconductors
Authors: CHIODELLI G. , CAMPARI‐VIGANO G. , MASSAROTTI V. , FLOR G.
Published: May 2016

is performed at temp. in the range 10‐900 K under different oxygen partial pressures.
ChemInform Abstract: Synthesis and Investigation of the Properties of GaOHCl2·H2O and GaOHBr2·H2O.
Authors: IVANOV M. G. , VASHCHENKO S. D. , DENISOVA T. A. , KALINICHENKO I. I.
Published: May 2016

The title compounds are prepared by dissolving Ga in a mixture of conc.
ChemInform Abstract: Dimerization of Chloromolybdate(III) Ions in the Presence of Zinc Chloride.
Authors: KAZIN P. E. , SUBBOTINA N. A. , ZHIROV A. I. , ZELENTSOV V. V. , FELIN M. G.
Published: May 2016

In the presence of ZnCl2 (II) in 12 N HCl the hexachloromolybdate(III) ion (I) dimerizes to the nonachloromolybdate(III) ion (III).
ChemInform Abstract: Structure and Reactivity of Isoanellated Heterocyclic Systems with 4nπ‐ and (4n+2)π‐Electrons. Part 17. Diels‐Alder and Michael Addition Reactions of 3‐Alkoxy‐2,4‐dihydropyrrolo(3,4‐b)indoles with Dialkyl Acetylenedicarboxylates.
Authors: DYKER G. , KREHER R. P.
Published: May 2016

The reactions of the compound (I) with the acetylenedicarboxylate (II) is decisively influenced by the solvent: 1. The Diels‐Alder product (III) is primarily formed in an aprotic and less polar solvent such as Et2O; subsequent hydrolysis under alkaline or neutral conditions affords the compounds (IV) or (V), respectively.
ChemInform Abstract: An Interesting Rearrangement in the Cycloaddition of 1‐(Methoxycarbonyl)cyclopentadiene.
Authors: CHENIER P. J. , STEVENS B. J. , ADAMS B. R.
Published: May 2016

Heating of the cyclopentadienecarboxylate (I) results in partial isomerization to yield the valence tautomer (II).
ChemInform Abstract: Metal‐Support Effects on the Intramolecular Selectivity of Crotonaldehyde Hydrogenation Over Platinum.
Authors: VANNICE M. A. , SEN B.
Published: May 2016

The unsaturated aldehyde (I) is selectively hydrogenated over Pt to give butyraldehyde (II).
ChemInform Abstract: Polysulfonylamines. Part 13. N‐Acylonium Salts of Dimesylamine: Synthesis and Mass Spectra.
Authors: BLASCHETTE A. , LINOH K. , SAFARI F. , SCHIEBEL H.‐M.
Published: May 2016

N‐Acyl dimesylamines (I) react with tert.‐nitrogen bases to give either N‐acylonium dimesylaminides such as (III) or onium dimesylaminides such as (V) or (IX) and a ketene (VI) or (X) the reactions of which are not examined further.
ChemInform Abstract: Introduction of Cage Systems to Molecules of Biological Interest. Part 2. Alkylation of Sulfamic Esters with a Moiety Derived from Adamantane.
Authors: HEDAYATULLAH M. , BEJI M.
Published: May 2016

The sulfamic acid esters (I) are subjected to the phase‐transfer reaction with the adamantyl bromomethyl ketone (II), forming the N‐alkylated derivatives (III) and (IV).
ChemInform Abstract: Synthesis of Dimethoxyfuranonaphthoquinones.
Authors: LOPES C. C. , LIMA E. L. S. , MONTEIRO A. J. , COSTA P. R. R.
Published: May 2016

In order to confirm the structure of some naturally occurring furanonaphthoquinones, the compounds (VIIIc) and (VIIId) are synthesized from the corresponding substituted furylphthalides (I).
ChemInform Abstract: Photochemical Synthesis of 3,4‐Annulated Tetrahydrothiophenes.
Authors: KIESEWETTER R. , MARGARETHA P.
Published: May 2016

Irradiation of the thiolactone (I) in methanol (III) in the presence of excess 1,4‐pentadiene (II) yields the fused thiolanes (IV) as the main products.
ChemInform Abstract: Photochemical Reactions of 7‐Aminocoumarins. Part 2. (2 + 2)Cycloadducts with Styrene.
Authors: KIRPICHENOK M. A. , MEL'NIKOVA L. M. , YUFIT D. S. , STRUCHKOV YU. T. , GRANDBERG I. I. , DENISOV L. K.
Published: May 2016

Photochemical addition of styrene (II) to the coumarins (I) and (IV) proceeds regio‐ and stereoselectively to give the 1‐endo‐phenylcyclobutabenzopyrans (III) and (V).
ChemInform Abstract: Locoselective (4 + 2) Cycloadditions of Vinylindoles with Inverse Electron Demand: A New Access of Indolyl‐Substituted and Anellated Pyridazines.
Authors: PINDUR U. , PFEUFFER L. , KIM M.‐H.
Published: May 2016

The reaction of a series of 2‐ and 3‐vinylindoles with the tetrazine (II) is investigated.
ChemInform Abstract: (Methylenecyclopropyl)dibutylborane.
Authors: BUBNOV YU. N. , GURSKII M. E. , IGNATENKO A. V.
Published: May 2016

Methylenecyclopropyldibutylborane (III) is prepared from methylenecyclopropane (I) and the borinate (II).
ChemInform Abstract: 6‐Thia‐1‐aza‐5λ5‐phosphabicyclo(3.2.0)hept‐3‐enes and Isothiocyanatophosphine Sulfides from (Methylidenamino)phosphines, Carbon Disulfide, and Acetylene or Ethylene Derivatives.
Authors: FULDE M. , RIED W. , BATS J. W.
Published: May 2016

Reaction of the (methylidenamino)phosphine (Ia) with excess carbon disulfide (II) gives within a few minutes the thiazaphosphete (III) as a yellow precipitate which can be filtered in the absence of air and used for the subsequent reactions.
ChemInform Abstract: Synthesis and Characterization of the “Cyclothiadi(selenazenium)” Cations (Se2N2S)22+, (XSe2N2S)+, and (Se2N2S)2+.
Authors: HAAS A. , KASPROWSKI J.
Published: May 2016

Bis(sulfinylamido)selenium (III), obtained from selenium dichloride (I) and the sulfinylamido compound (II), reacts with the pentafluorides (IV) to form the cyclothiadi(selenazenium) salts (V).
ChemInform Abstract: Organo‐Silicon Compounds. Part 252. ((Me3Si)2CHGe)6, the First Hexagermaprismane.
Authors: SEKIGUCHI A. , KABUTO C. , SAKURAI H.
Published: May 2016

The title compound (II) crystallizes in the space group P21/n with Z=4.
ChemInform Abstract: Organic Syntheses via Transition Metal Complexes. Part 33. 2‐Azaallenyl Chromium Complexes by Condensation of Aminocarbene Chromium Complexes with Aldehydes, Acid Chlorides, or Acid Amides.
Authors: AUMANN R. , ALTHAUS S. , KRUEGER C. + , BETZ P.
Published: May 2016

The aminocarbene complex (I) can be converted into the 2‐azaallenyl complexes (III), (V), and (VII) of hitherto unknown substitution patterns by condensation of the NH2 group with different carbonyl compounds like the aldehydes (II), the acid chlorides (IV), and the acid amides (VI) in the presence of NEt3/POCl3 or NEt3 only, respectively.
ChemInform Abstract: Synthesis of the Oviposition‐Deterring Pheromone (ODP) in Rhagoletis cerasi L.
Authors: ERNST B. , WAGNER B.
Published: May 2016

One of the four possible diastereomers of the title compound (= ODP), i.e. (IXa), is prepared as shown in the scheme, the key step being the coupling reaction between (R)‐(II) and (S)‐(VI).
ChemInform Abstract: Matrix IR Spectra of Reaction and Photolysis Products of Stibine and Ozone.
Authors: ANDREWS L. , MOORES B. W. , FONDA K. K.
Published: May 2016

The major reaction products between stibine and ozone, which are codeposited with excess argon at 12 K, are shown to be stibylene ozonide, HSbO3, and hydroxystibine, H2SbOH.
ChemInform Abstract: Superdense Carbon, C8: Supercubane or Analogue of γ‐Si?
Authors: JOHNSTON R. L. , HOFFMANN R.
Published: May 2016

A new crystalline allotrope of carbon, "C8", which has recently been claimed, following research on the plasma deposition of thin carbon films, and which is reported to consist of a body‐centered cubic array of C8 cubes and termed "supercubane", is reinvestigated by means of a structural analysis combined with extended Hueckel band calculations.
ChemInform Abstract: Layers of Gallium Arsenide Doped with Manganese by Epitaxy from the Gas Phase.
Authors: VILISOVA M. D. , MALISOVA E. V. , IKONNIKOVA G. M. , KRASIL'NIKOVA L. M. , YABZHANOV V. B. , KHISHCHENKO S. YU.
Published: May 2016

The structure and the electric properties of GaAs layers, doped with 0.05 to 1 at.% Mn, are investigated.
ChemInform Abstract: The Role of the Acidic Electrolyte in the Phase Transformation of γ‐EMD to β‐Manganese Dioxide
Authors: KAO W.‐H.
Published: May 2016

is studied because the β‐phase material is an undesirable product in the electrolytic MnO2 (EMD) process due to its low electrochemical activity.
ChemInform Abstract: Mechanism and Products of Electrochemical Oxidation of 5,7‐Dihydroxytryptamine (I).
Authors: DRYHURST G. , ANNE A. , WRONA M. Z. , LEMORDANT D.
Published: May 2016

Contrary to earlier postulations, the initial step in the electrochemical oxidation of (I) is a 1e‐,1H+ oxidation to a radical intermediate.
ChemInform Abstract: Isolation of a 1:1 Oxazole‐Benzyne Cycloadduct: An Improved Method for Generating Benzyne and a New Approach to Isobenzofuran.
Authors: WHITNEY S. E. , RICKBORN B.
Published: May 2016

Simultaneous addition of 1‐aminobenzotriazole (I) and lead tetraacetate to the oxazole (II) gives the benzyne‐oxazole cycloadduct (III).
ChemInform Abstract: Reductive Cyclizations. The Electrochemical Generation of Cyclopropanes via the Double Intramolecular Cyclization of Initially Formed Vinyl Radicals.
Authors: GASSMAN P. G. , LEE C.
Published: May 2016

A variety of 1,3‐dicarbonyl enol phosphates such as (I), (III), (V), (VII), (IX), (X) are electrochemically reduced under controlled potential conditions to give reactive intermediates which, in a double cyclization process, give bicycloalkanes such as (II), (IV), (VI), (VIII), or (XI).
ChemInform Abstract: Pinacol Rearrangement in the Solid State.
Authors: TODA F. , SHIGEMASA T.
Published: May 2016

The pinacol rearrangement of the substrates (I) in the solid state is found to proceed faster and more selectively than that in solution.
ChemInform Abstract: An Unusual Ring Reorganization of a N‐Styrylisothiazolethione to a 2‐Styrylthiazole.
Authors: YAMAMOTO K. , YAMAZAKI S. , MURATA I. , FUKAZAWA Y.
Published: May 2016

Sulfurization of the isothiazolone (I) with phosphorus pentasulfide gives the isothiazolethione (II) which rearranges on methylation with trimethyloxonium tetrafluoroborate (III), forming the thiazole (IV).
ChemInform Abstract: The Oxirene Radical Cation and Its Neutralization in the Gas Phase.
Authors: HOP C. E. C. A. , HOLMES J. L. , TERLOUW J. K.
Published: May 2016

Oxirene radical cations, (C2H2O).+, are produced as stable species in the gas phase in the dissociative ionization of vinylene carbonate, oxazole, and isoxazole.
ChemInform Abstract: Aryl Exchange via Reversible Friedel‐Crafts Reaction in the Synthesis of a Diarylacetic Acid.
Authors: NADLER E. B. , RAPPOPORT Z.
Published: May 2016

When anisole (II) is added to a mixture of mesitylglycolic acid (I) and stannic chloride in carbon disulfide, the anisylmesitylacetic acid (III) is formed as the main product.
ChemInform Abstract: Syntheses via Vinyl Sulfones. Part 36. Ramberg‐Baecklund Syntheses and Chemodirected Annulations of Exocyclic Allylsilanes.
Authors: RANASINGHE M. G. , FUCHS P. L.
Published: May 2016

Allylsilanes (IV) or (VII) can be prepared starting from the readily available bis‐sulfone (I) as shown in the scheme.
ChemInform Abstract: Reaction of N‐Vinyliminophosphoranes. Part 7. A Short New 1‐Azaazulene Synthesis.
Authors: NITTA M. , IINO Y. , HARA E. , KOBAYASHI T.
Published: May 2016

Thermal reaction of the readily accessible phosphoranes (I) with the tropones (II) gives the compounds (III) which are dehydrogenated to the azaazulenes (IV).
ChemInform Abstract: Peculiar C‐C Bond Cleavages of Pyrazolylpropenone Epoxides Induced by Grignard Reagents.
Authors: EL‐SHEKEIL A. , BABAQI A. , HASSAN M. , SHIBA S.
Published: May 2016

Chloroformylation of the diphenylpyrazolinone (I) yields the chlorodiphenylpyrazolecarbaldehyde (III) which is coupled with the acetophenone (IV) to give the propenones (V).
ChemInform Abstract: Desulfuration of Sulfur Bridged Hexahydrotriazines: Ring Contraction to Imidazolidines.
Authors: SHERADSKY T. , ITZHAK N.
Published: May 2016

Desulfuration of the title triazines (I) and (IV) does not yield the expected hexahydrotriazines.
ChemInform Abstract: Synthesis, Structure and Reactivity of Diphosphenes with cis‐Configuration.
Authors: NIECKE E. , KRAMER B. , NIEGER M.
Published: May 2016

The synthesis of the first stable cis‐diphosphenes (V) is accomplished by reaction of the dichlorophosphenes (I) with the compounds (II) or (III) followed by base‐induced elimination of HCl (X‐ray analysis for (Va): space group P21/c; Z=4 and (Vb): space group Pbca; Z = 8).
ChemInform Abstract: Dilithium (Trimethylstannyl)(2‐thienyl)(cyano)cuprate, a Synthetically Useful Higher Order Cuprate Reagent.
Authors: PIERS E. , TILLYER R. D.
Published: May 2016

The cuprate (V), prepared from hexamethyldistannane (I), undergoes addition reactions with the enones (VI) and (VIII) or the alkynes (X) to give the trimethylstannyl derivatives (VII), (IX), (XI), and (XII).
ChemInform Abstract: (Mn10O14(N(CH2CH2NH2)3)6)8+: A Mixed‐Valence Polyoxomanganese Polycation Possessing Structural Similarities to Naturally Occurring Layered Manganese Oxides.
Authors: HAGEN K. S. , ARMSTRONG W. H. , OLMSTEAD M. M.
Published: May 2016

The title complex (I) is obtained by dissolving Mn(O‐SO2‐CF3)2·2 MeCN and the ligand in acetonitrile under N2 and overnight exposure to air.
ChemInform Abstract: Cytochrome P‐450 Model Reactions. ‐ Isolation and Characterization of Manganese(IV)‐ and Manganese(V)‐Porphyrin Complexes.
Authors: VOLZ H. , BARTH T.
Published: May 2016

The spectroscopic and magnetic properties of the reactive Mn(IV) complex (III) are compared with those of (V) and (VI).
ChemInform Abstract: Rhodium Complexes of the Binucleating Ligands Pyridine‐2‐thiolate and Benzothiazole‐2‐thiolate. Crystal Structures of ((Rh(μ‐SC5H4N)(CO)2)2) and ((Rh(μ‐SC5H4N)(tfbb))2)·Me2CO (tfbb: tetrafluorobenzobarrelene).
Authors: CIRIANO M. A. , VIGURI F. , PEREZ‐TORRENTE J. J. , LAHOZ F. J. , ORO L. A. , TIRIPICCHIO A. , TIRIPICCHIO‐CAMELLINI M.
Published: May 2016

The binuclear complexes (IIIa), (IIIb), (IV), (Va) and (Vb) are prepared by reaction of the Li salts of the thiolate ligands with the appropriate di‐μ‐chloro‐rhodium diolefin complexes as demonstrated for (IIIa).
ChemInform Abstract: The Coordination Chemistry of Silyl‐Sulfurdiimides.
Authors: JONES R. , WILLIAMS D. J. , WOOD P. T. , WOOLLINS J. D.
Published: May 2016

The reactivities of the title compounds (I) and (III) are investigated.
ChemInform Abstract: A Reexamination of the Synthesis of Paracetamol Glucuronide, the Major Urinary Metabolite of Paracetamol in Man.
Authors: JOHNSTON D. , ANDREWS R. S. , ORMISTON R. A.
Published: May 2016

The title compound (V) can be efficiently prepared starting either from the (tetra‐O‐acetyl glucopyranoside)uronate (I) or (tri‐O‐acetyl glucopyranosyl bromide)‐uronate (III) via the condensation product (IV).
ChemInform Abstract: Highly Stereoselective Total Synthesis of β‐Ribofuranosylmalonate.
Authors: KATAGIRI N. , AKATSUKA H. , HANEDA T. , KANEKO C. , SERA A.
Published: May 2016

High‐pressure Diels‐Alder reaction of furan (I) with the acetoxymethylenemalonates (II) gives the endo‐adducts (III) as the major products.
ChemInform Abstract: Metabolites of the Higher Fungi. Part 24. Cytochalasin N, O, P, Q, and R. New Cytochalasins from the Fungus Hypoxylon terricola Mill.
Authors: EDWARDS R. L. , MAITLAND D. J. , WHALLEY A. J. S.
Published: May 2016

The cytochalasins are a group of toxic fungal metabolites which show cytostatic effects.
ChemInform Abstract: Selective Excitation of Ti2+Mn2+ and Mn2+Ti2+Mn2+ Spin Clusters in MgCl2.
Authors: HERREN M. , JACOBSEN S. M. , GUEDEL H. U. + , BRIAT B.
Published: May 2016

Ti2+ and Mn2+ are simultaneously doped into MgCl2 and the Ti2+Mn2+ dimers and Mn2+Ti2+Mn2+ trimers obtained are studied by site‐selective dye‐laser spectroscopy.
ChemInform Abstract: Semiconduction Properties of γ‐MnO2 with Different Degrees of Reduction.
Authors: XIA X. , LI H. , CHEN Z.‐H.
Published: May 2016

Measurements of dc conductivity and Seebeck coefficient are performed on γ‐MnO2 which is stepwise reduced by the hydrazine method.
ChemInform Abstract: New Rubidium Lithium Zincates: RbLiZnO2 (I) and RbLiZn2O3 (II).
Authors: BAIER R. , HOPPE R.
Published: May 2016

Powders and single crystals of the title compounds (I) and (II) are obtained by annealing mixtures of the binary oxides (single crystals of (I): 770 °C, 56 d, closed Ag crucible; single crystals of (II): 850 °C, 28 d, closed Ni crucible).
ChemInform Abstract: On TiF3 and Hexafluorotitanates(III): Cs2K(TiF6), Rb2K(TiF6), and TiF3, with a Remark on Rb3(TiF6).
Authors: HOPPE R. , BECKER ST.
Published: May 2016

Single crystals of the title compounds are obtained for the first time by the redox reactions with the wall outlined in the scheme.
ChemInform Abstract: A Two Step Procedure as Improved Alternative to the Cyclocarbonylation of Allyl Halides and Acetylene Derivatives Mediated by Ni(CO)4.
Authors: CAMPS F. , COLL J. , LLEBARIA A. , MORETO J. M.
Published: May 2016

The alkynes (I) are coupled with allyl bromide (II) in the presence of a Pd(II) catalyst to form the 1‐bromo‐1,4‐dienes (III) which are carbonylated with nickel tetracarbonyl (IV) in the presence of methanol (V), yielding the methoxycarbonylmethylcyclopentenones (VI).
ChemInform Abstract: Attempts of Preparing Triafulvenes from 1‐Bromo‐2,2‐dichloro‐3‐methylcyclopropane.
Authors: STAEMPFLI U. + , NEUENSCHWANDER M.
Published: May 2016

Addition of dichlorocarbene to 1‐bromopropene (I) yields only the cis‐substituted cyclopropane (III).
ChemInform Abstract: Diastereoselective Synthesis of α,γ‐Amino Alcohols by Intramolecular 1,3‐Dipolar Cycloaddition of Nitrones with Allyl Thioether Moieties and Subsequent Reductive Ring Cleavage.
Authors: AURICH H. G. , MOEBUS K.‐D. +
Published: May 2016

The allylthio nitrones (IV) and (VIII), derived from mercaptoacetaldehyde (I) and allyl bromide (II) or from acrolein (VI) and allyl mercaptan (VII), undergo intramolecular cycloaddition, forming the fused isoxazolidines (V) or (X) and the bridged oxathiazine derivatives (IX).
ChemInform Abstract: Formation of β‐Naphthol Derivatives in the Reaction of Homoveratroic Acid with Substituted Benzenes in Polyphosphoric Ester. Synthesis of 6‐Oxoniabenzo(a)anthracene Salts.
Authors: SHCHERBAKOVA I. V. , KUZNETSOV E. V.
Published: May 2016

A novel reaction is observed to proceed at 75 °C between homoveratroic acid (I) and the phenol ethers (II) affording the β‐naphthol derivatives (III) instead of the 3,4‐dimethoxybenzyl aryl ketones, which are the products of the reaction between (I) and (II) at about 85 °C. Basic hydrolysis of (III) yields the free β‐naphthols (IV).
ChemInform Abstract: Stereochemical Studies on the Intramolecular Diels‐Alder Reaction of Furans with Doubly Activated Dienophiles.
Authors: HARWOOD L. M. , JONES G. , PICKARD J. , THOMAS R. M. , WATKIN D.
Published: May 2016

The bisfurans (II) are cleaved upon oxidation with MCPBA, yielding the Z‐enediones (V) and the bis(enediones) (VI).
ChemInform Abstract: Tetrathiodilactones.
Authors: OZAKI K. , YONEDA S.
Published: May 2016

Treatment of the tetrakis(alkylthio)thienothiophenes (I) with excess thionyl chloride results in de‐tert‐butylation, forming predominantly the tetrathiodilactones (II).
ChemInform Abstract: Synthesis of Secondary α‐Methylene‐γ‐lactams.
Authors: EL ALAMI N. , BELAUD C. , VILLIERAS J.
Published: May 2016

Three methods are described for the synthesis of the α‐methylene‐γ‐lactams (IV) or (XI): the cyclocondensation of the N‐p‐methoxyphenylaldimines (I) with the bromomethylacrylate (II) under Reformatskii conditions to give the N‐protected lactams (III) has already been reported in literature.
ChemInform Abstract: Synthesis and Reactions of Brominated 2‐Nitroimidazoles.
Authors: PALMER B. D. , DENNY W. A.
Published: May 2016

The imidazole (VI) is suitable for the preparation of the nitro derivative (III), which is required for studies concerned with hypoxia‐selective drugs.
ChemInform Abstract: Synthesis of 2,3‐Dihydro‐1,4‐benzodioxin Derivatives. Part 1. 2‐Substituted 5(and 6)‐Sulfamoyl‐2,3‐dihydro‐1,4‐benzodioxins.
Authors: ITAZAKI H. , KAWASAKI A. , MATSUURA M. , UEDA M. , YONETANI Y. , NAKAMURA M.
Published: May 2016

The 6‐sulfamoyl‐2,3‐dihydro‐1,4‐benzodioxin (XII) is synthesized from the 1,2‐dihydroxybenzene derivative (I) as shown in the reaction scheme.
ChemInform Abstract: Borylation of Sulfamides, Sulfonimines and Sulfonediimines.
Authors: EINHOLZ W. , FREY G. , HAUBOLD W.
Published: May 2016

Various borylation reactions of the substrates (I), (VIII), or (XIV) with the boron compounds (II), (V), or (IX) as shown in the scheme yield the products (III), (VI), (X), (XII) + (XIII), (XV) or (XVI).
ChemInform Abstract: Evidence of ((OC)4Fe=Si(CH3)2·((CH3)2N)3PO) as an Intermediate of Polysilane Formation from (CH3)2SiCl2 and Na2Fe(CO)4.
Authors: ZYBILL C. , WILKINSON D. L. , LEIS C. , MUELLER G. +
Published: May 2016

The title compound (IV) can be isolated from the system Na2(Fe(CO)4) (I)/Me2SiCl2 (II) at ‐45 °C by addition of HMPT (III).
ChemInform Abstract: Novel Ferrocene Diesters with Liquid‐Crystal Properties.
Authors: BHATT J. , FUNG B. M. , NICHOLAS K. M. , POON C.‐D.
Published: May 2016

1,1'‐Ferrocenedicarboxylic acid dichloride (I) is esterificated with the biphenol monoalkyl ethers (II) to give the diesters (III).
ChemInform Abstract: Ene Approach for Concurrent Control Over the Chiral Centres at C‐20 and C‐22 of Steroid Side Chains: A Highly Stereocontrolled Synthesis of (20S,22R)‐(erythro)‐22‐Hydroxy‐23,24‐acetylenic Steroid Side Chains.
Authors: MIKAMI K. , LOH T.‐P. , NAKAI T.
Published: May 2016

The steroidal alkene (I) is coupled with the acetylenic aldehydes (IIa) ‐ (IIc), forming the erythro‐alcohols (III) as the main products.