bluuebunny/crossref_metadata_2025 huggingface dataset:
ChemInform Abstract: Synthesis and Monolayer Spreading Behavior of Surface‐Active Compounds Containing Electron‐ and Hole‐Transporting Groups. Part 1. Fluorenylidene Derivatives.
Authors: TAYLOR J. W. , SLOAN C. P. , HOLDEN D. A. , KOVACS G. J. , LOUTFY R. O.
Published: May 2016

The surface‐active derivatives (IV), (IX), (XIII) containing fluorenylidene groups are synthesized with the goal of creating thin‐film devices incorporating monolayers of electron‐transporting materials.
ChemInform Abstract: Electron Impact Induced Loss of C‐5/C‐8 Substituents of 1,2,3,4‐Tetrahydroisoquinolines. Part 6. Synthesis and Mass Spectrometric Fragmentation of Dihydroindole Derivatives.
Authors: KNEFELI F. , MAYER K. K. , WIEGREBE W. , SCHLUNEGGER U. P. , LAUBER R.
Published: May 2016

Starting with indole‐4‐carboxaldehyde (I), the dihydroindoles (VI) are synthesized as outlined in the reaction scheme.
ChemInform Abstract: Synthesis of Benzo(b)phenanthridines According to Pictet‐Spengler and Bischler‐Napieralski.
Authors: GOGILASHVILI T. I. , SLADKOV V. I. , LEVINA I. I. , ERSHOVA YU. A. , CHERNOV V. A. , SUVOROV N. N.
Published: May 2016

The 2‐amino‐1,4‐naphthoquinones (III) and (Vb) are cyclized to give the benzo(b)phenanthridines (VII) and (IX) ‐ (XII).
ChemInform Abstract: Stereoselective Synthesis of Tertiary 2,6‐Methano‐2‐benzazocin‐5‐oles.
Authors: HOLZGRABE U. , PIENING B. , HALLER R.
Published: May 2016

Reaction of the keto ester (I) with various organometallic reagents (II) yields predominantly the tertiary alcohols (IV) with axial hydroxy groups.
ChemInform Abstract: Syntheses of 4,7‐Dimethyl‐6‐phenyl‐5,6,7,8‐tetrahydro‐4H‐1,3,6‐dioxazocin‐2‐ones and Related Compounds.
Authors: NISHIYAMA T. , YAMAGUCHI H. , YAMADA F.
Published: May 2016

Two isomeric dioxazocinones (III) and four isomeric dioxathiazocines (V) are synthesized.
ChemInform Abstract: Solid‐State Chemistry of Molecular Metal Oxide Clusters. Bis(triphenylphosphine)rhodium(I) Carbonyl Derivatives.
Authors: SIEDLE A. R. , GLEASON W. B. , NEWMARK R. A. , SKARJUNE R. P. , LYON P. A. , MARKELL C. G. , HODGSON K. O. , ROE A. L.
Published: May 2016

Hydronium salts of the Keggin‐type molecular metal oxide cluster anions (EW12O40)4‐ (E: Si, P), (SiMo12O40)4‐, (PMo12O40)n‐ (n = 3, 4) and (PVMo11O40)4‐ react with (I) to form salts such as (V).
ChemInform Abstract: Clusters Containing Carbene Ligands. Part 7. Preparation of Os3(CO)8(C(H)NMe2)(μ3‐S)(μ‐H)2 and the Nature of Its Reactions with Secondary and Tertiary Amines.
Authors: ADAMS R. D. , BABIN J. E. , KIM H. S. , TANNER J. T. , WOLFE T. A.
Published: May 2016

The title compound (IIIa) (space group P1, Z=4) is prepared by reaction of NMe3 (II) with the cluster (I) or with Os3(CO)10(μ‐SPh)(μ‐H) (yield 27%).
ChemInform Abstract: SRN1 Reactions of tert‐Butyl Chlorides.
Authors: SANTIAGO A. N. , ROSSI R. A.
Published: May 2016

The tert‐alkyl chlorides (I) do not react with diphenylphosphide anion (II) in liquid NH3 under exclusion of light.
ChemInform Abstract: N‐Hydroxypyridine‐2‐thione Carbamates. Part 5. Syntheses of Alkaloid Skeletons by Aminium Cation Radical Cyclizations.
Authors: NEWCOMB M. , MARQUARDT D. J. , DEEB T. M.
Published: May 2016

The title radical precursors (PTOC carbamates) such as (I), (III) or (VI) are employed as sources of 5,6‐unsaturated aminium cation radicals, which undergo 5‐exo radical cyclization followed by trapping with tBu‐SH or the PTOC carbamate to give a variety of alkaloid skeletons such as (II), (IV), (V), (VII) or (VIII).
ChemInform Abstract: Studies in Antiparasitic Agents. Part 11. Synthesis of 5‐Substituted 2‐Alkyl/Aryl‐carbonylaminobenzimidazoles as Orally Effective Anthelmintics.
Authors: NAIM S. S. , SINGH S. K. , SHARMA S. , GUPTA S. , KHAN A. M. , JAIN M. K. , SINGH S. N. , CHATTERJEE R. K. , KATIYAR J. C.
Published: May 2016

Sixteen title compounds are prepared.
ChemInform Abstract: Synthesis of Phosphono Peptides Using Pivaloyl Chloride.
Authors: SOLODENKO V. A. , KASHEVA T. N. , KUKHAR' V. P.
Published: May 2016

The N‐protected alanine (I) is converted to the mixed anhydride with pivaloyl chloride (II) which reacts in situ with the α‐aminoethylphosphonate (III) to give the phosphono peptide (IV) after acidic work‐up.
ChemInform Abstract: Electron‐Transfer Reaction of a Selenium Coronand‐Copper(II) Complex. Formation of the Stable 1,5,9,13‐Tetraselenacyclohexadecane Dication.
Authors: BATCHELOR R. J. , EINSTEIN F. W. B. , GAY I. D. , GU J.‐H. , PINTO B. M. , ZHOU X.‐M.
Published: May 2016

The Cu complex (I) ( P21/n, Z=2) is the first known complex of a selenium coronand.
ChemInform Abstract: Mixed Valency Tellurohalides of Aluminum, Gallium, and Indium: Compounds E3Te3Hal on Pseudobinary Sections ETe‐ETeHal.
Authors: PAASHAUS S. , KNIEP R.
Published: May 2016

In the pseudobinary title systems with E: Al, Hal: I, Br; E: Ga, Hal: I, Br, Cl; E: In, Hal: I, Br the compounds E3Te3Hal exist as intermediate isotypic phases with incongruent melting behavior.
ChemInform Abstract: The Dissociation Equilibria of Tungstate Ion in a Molten Fluoride and the Effect on Electrodeposition.
Authors: YABE H. , EMA K. , ITO Y.
Published: May 2016

The dissociation constant of the reaction WO42‐ = W(VI) + 4 O2‐ in the molten LiF‐KF eutectic at 973 K is determined using a zirconia‐air oxide ion indicator method (K = 5·10‐12 (mole fraction unit)).
ChemInform Abstract: K2Pt4Se6, Rb2Pt4Se6, Cs2Pt4Se6, Preparation and Structure.
Authors: BRONGER W. , JAEGER S. + , RENNAU R. , SCHMITZ D.
Published: May 2016

The three title compounds, which are synthesized by reaction at 850 °C of Pt and Se with the corresponding alkali carbonate in an argon atmosphere or by reaction of alkali carbonates and Pt in a H2 stream loaded with Se, crystallize in the α‐K2Pt4S6‐type of structure (R3m, Z=3).
ChemInform Abstract: Relative Electron Donor Strengths of Tetrathiafulvene Derivatives: Effects of Chemical Substitutions and the Molecular Environment from a Combined Photoelectron and Electrochemical Study.
Authors: LICHTENBERGER D. L. , JOHNSTON R. L. , HINKELMANN K. , SUZUKI T. , WUDL F.
Published: May 2016

The order of decreasing first ionization potentials (IP's) as measured by gas‐phase PE spectra is (IIb) ≈ (I) (6.7 eV) > (IIa) (6.46) whereas the order of solution oxidation potentials is (IIb) > (IIa) > (I) (cyclic voltammetry in a variety of solvents).
ChemInform Abstract: Kinetics of the Cyclization of 5‐Hexyn‐1‐yllithiums.
Authors: BAILEY W. F. , OVASKA T. V.
Published: May 2016

First‐order rate constants and activation parameters for the cyclization of (I) to (II) are determined at four temperatures (10‐30 °C).
ChemInform Abstract: Asymmetric Catalysis. Part 52. Rhodium‐Catalyzed Enantioselective Transfer Hydrogenation of C=C Double Bonds with the System HCOOH/Et3N as Hydrogen Source.
Authors: BRUNNER H. , LEITNER W.
Published: May 2016

The title hydrogenation reaction is successfully applied to α,β‐unsaturated compounds, e.g. (I) and (III).
ChemInform Abstract: N‐Methoxyguanidine. Part 2. Reactions with the Ethyl Ester of Chlorodithioformic Acid and with Carbon Disulfide: Acetylation Reactions.
Authors: LOTZ S. , GATTOW G.
Published: May 2016

Reaction of the title compound (I) with the chlorodithioformate (I) yields the known thiadiazole (III).
ChemInform Abstract: A Convenient Regioselective Synthesis of Substituted Cycloheptenones.
Authors: PAK C. S. , KIM S. K.
Published: May 2016

Dichloroketene is added to the silyl enol ethers (I) to produce the (2 + 2)cycloadducts (III).
ChemInform Abstract: Carbon Dioxide: A Reagent for the Simultaneous Protection of Nucleophilic Centers and the Activation of Alternative Locations to Electrophilic Attack. Part 16. A Novel Synthetic Method for the Side‐Chain Functionalization of N‐Methyl‐o‐toluidine and for the Preparation of 2‐Substituted N‐Methylindoles.
Authors: KATRITZKY A. R. , FAN W.‐Q. , AKUTAGAWA K. , WANG J.
Published: May 2016

Reaction of o‐toluidine (I) with benzotriazole (II) and formaldehyde (III) yields N‐(1‐benzotriazolylmethyl)‐2‐methylaniline (IV) which is reduced with sodium borohydride, forming N‐methyl‐o‐toluidine (V).
ChemInform Abstract: Mild and Reversible Friedel‐Crafts Acylation: Synthesis of 6‐Acyl‐2‐methoxynaphthalenes.
Authors: GIORDANO C. , VILLA M. , ANNUNZIATA R.
Published: May 2016

Friedel‐Crafts acylation of 2‐methoxynaphthalene (I) with the carboxylic chlorides (II) under kinetically controlled conditions produces mixtures of the 6‐ (III) and the 1‐acylated 2‐methoxynaphthalenes (IV).
ChemInform Abstract: Synthesis of 2‐Substituted 3‐Phytyl‐1,4‐naphthoquinone Epoxides.
Authors: RYALL R. P. , SILVERMAN R. B.
Published: May 2016

1,4‐Naphthoquinone (I) is converted to the dihydroxy(phytyl)naphthalene (III) by a known method and then formylated and oxidized to give the hydroxymethyl(phytyl)naphthoquinone (V).
ChemInform Abstract: Synthesis of N‐Nitroazetidines.
Authors: ARCHIBALD T. G. , BAUM K. , GARVER L. C.
Published: May 2016

Epichlorohydrin (I) is cleaved and ring‐expanded with benzhydrylamine (II) to form the hydroxyazetidine (IIIa).
ChemInform Abstract: New Methods and Reagents in Organic Synthesis. Part 87. Reaction of Trimethylsilyldiazomethane with Quinones.
Authors: AOYAMA T. , NAKANO T. , NISHIGAKI S. , SHIOIRI T.
Published: May 2016

The 1,4‐naphthoquinones (I) and methyl‐p‐benzoquinone (V) undergo ring closure reaction with trimethylsilyldiazomethane (II) in diethyl ether to produce the benzindazolequinones (VI) and (VII).
ChemInform Abstract: 2‐Amino‐5‐imino‐4,5‐dihydrothiazoles: Synthesis by Reaction of Isocyanides with 2‐Amino‐3‐aza‐1‐thiabutadienes and Base‐Induced Rearrangement into Imidazolines or Diazolidines.
Authors: MOREL G. , MARCHAND E. , FOUCAUD A. , TOUPET L.
Published: May 2016

The diphenylmethylenethioureas (I) react with the isonitriles (II) to give the thiazoles (III).
ChemInform Abstract: Bis‐Heterocycles as Potential Chemotherapeutic Agents. Part 10. Synthesis of Bis(4‐arylthiosemicarbazido)‐, Bis(2‐arylamino‐1,3,4‐thiadiazol‐5‐yl)‐ and Bis(4‐aryl‐1,2,4‐triazolin‐3‐thione‐5‐yl)pentanes and Related Compounds.
Authors: RAM V. J. , MISHRA L. , PANDEY N. H. , KUSHWAHA D. S. , PIETERS L. A. C. , VLIETINCK A. J.
Published: May 2016

The title compounds of type (III)‐(V), (VII) and (VIII) are screened for antifungal activity.
ChemInform Abstract: Synthesis and Reactions of Highly Electrophilic Imines Containing the N‐Cyano Group.
Authors: RAMEZANIAN M. , BUYLE PADIAS A. , SAEVA F. D. , HALL H. K. JUN.
Published: May 2016

The dichlorocyanoethylenes (I) are treated with sodium azide (II) to form the diazides (III) which are thermally degraded to give the imines (V), probably via the intermediates (IV).
ChemInform Abstract: Hydroperoxide Oxidations of α‐(N,N‐Dialkylamino) Amides.
Authors: WENKERT D. , ANGELL E. C. , CHEN T.‐F. , RAMACHANDRAN K.
Published: May 2016

The N,N,N',N'‐tetraalkylaminoacetamides (V), prepared by chloroacetylation of the amines (II) and subsequent amination, are treated with metachloroperbenzoic acid to generate the corresponding N‐oxides (VI).
ChemInform Abstract: Intramolecular Wittig Reaction Applied to the Synthesis of Medium Sized α,β‐Unsaturated Lactones and Dilactones.
Authors: YVERGNAUX F. , LE FLOC'H Y. , GREE R. , TOUPET L.
Published: May 2016

The α,ω‐diols (I) are converted to the ω‐formylalkyl bromoacetates (IV) via oxidation of the hydroxyalkyl bromoacetates (III).
ChemInform Abstract: Boron Compounds. Part 94. Organosubstituted Potassium 2,5‐Dihydro‐1,2,5‐oxasilaboratolates from cis‐2‐Boryl‐1‐silylalkenes with Potassium Hydroxide.
Authors: KOESTER R. + , SEIDEL G. , WRACKMEYER B. , HORCHLER K.
Published: May 2016

The boryl alkenes (I) react with KOH at ‐20 °C to form adducts which at above 0 °C eliminate alkane via a ring closure reaction to give the compounds (III).
ChemInform Abstract: Reactions of 1‐Nitro‐2‐(trialkylsilyl)acetylenes.
Authors: BOTTARO J. C. , SCHMITT R. J. , BEDFORD C. D. , GILARDI R. , GEORGE C.
Published: May 2016

The title compounds (III), prepared by reaction of the alkynes (I) with nitryl hexafluorophosphate (II), react with the dienes (IV) to give the cycloadducts (V).
ChemInform Abstract: Chemistry of Phosphorus. Part 206. The Cyclic Silaphosphanes (tBuSi)4P2Cl6, (tBuSiP)4H2Cl2, and (tBuSiP)4HCl, Precursors of the Silaphosphacubane (tBuSiP)4.
Authors: BAUDLER M. , SCHOLZ G.
Published: May 2016

The reaction of tBuSiCl3 with Li(Al(PH2)4) yields the silaphosphacubane (tBuSiP)4 as the end‐product.
ChemInform Abstract: Electrophilic Reactions of Halides of Group VI Elements. Part 11. Synthesis of Fused Systems of Selen(tellur)azino(2,3‐g,h)carbazole.
Authors: LENDEL V. G. , PAK B. I. , BALOG I. M. , KIYAK M. V. , MIGALINA YU. V.
Published: May 2016

Reaction of N‐propargylcarbazole (I) with the selenium(tellurium) tetrahalides (II) gives the ring system (III) mentioned in the title.
ChemInform Abstract: Palladium‐ and Molybdenum‐Catalyzed Hydrostannation of Alkynes. A Novel Access to Regio‐ and Stereodefined Vinylstannanes.
Authors: ZHANG H. X. , GUIBE F. , BALAVOINE G.
Published: May 2016

The addition of tributylstannane (II) to alkynes such as (I), (V), and (VIII) is catalyzed by palladium and molybdenum complexes.
ChemInform Abstract: Synthetic Applications of the Oxidative Cleavage of the Molybdenum‐Mercury Bonds in (CpMo(CO)2(PPh3))2Hg.
Authors: LIN C. C. , HATHCOX S. , GIPSON S. L.
Published: May 2016

The new synthetic route to complexes (IV), (VI) and (VIII) takes place at 20 °C, an advantage compared to previous methods.
ChemInform Abstract: Preparation and Structure of Bis(tetraphenylarsonium) trans‐Aquatetracyanonitridotechnetate(V) Pentahydrate. ESR Studies of the (TcN(CN)4(OH2))2‐/(TcNCl4)‐ System.
Authors: BALDAS J. , BOAS J. F. , COLMANET S. F. , MACKAY M. F.
Published: May 2016

The title complex (IV) crystallizes in the space group P21/n, Z=4.
ChemInform Abstract: Ligand‐Bridged Homo‐ and Heterobinuclear Carbonyl Polypyridyl Complexes of Re(I): Syntheses, Electronic Spectra, Redox, and Luminescence Behavior.
Authors: KALYANASUNDARAM K. , NAZEERUDDIN M. K.
Published: May 2016

In continuation of studies on the characterization and photophysics of ligand‐bridged polypyridyl complexes the homo‐ (IV) and hetero‐binuclear (VI) compounds are prepared.
ChemInform Abstract: Triple‐Decker Complexes. Part 13. Sandwich and Triple‐Decker Complexes of 1,4‐Diboracyclohexadienes Starting with 1,4‐Dibora‐2‐cyclohexene Derivatives.
Authors: WOERNER K.‐F. + , UHM J.‐K. , PRITZKOW H. , SIEBERT W.
Published: May 2016

Reactions of 1,4‐dibora‐2‐cyclohexene derivatives (I) with transition‐metal complex fragments yield by dehydrogenation the title complexes as demonstrated in the scheme.
ChemInform Abstract: Hydrido(benzochalcogenadiazole) Complexes of Ruthenium: Crystal Structure of (RuCl(H)(CO)(PPh3)2(SN2C6H4)).
Authors: ALCOCK N. W. , HILL A. F. , ROE M. S.
Published: May 2016

The X‐ray diffraction study of (IIIa) (space group P21/n, Z = 8) establishes the mode of heterocycle coordination as being via one N atom and cis to the hydrido ligand.
ChemInform Abstract: Coupling Between Polypyridineruthenium(II) and Methylviologen Moieties in π‐Conjugated Hybrid Systems.
Authors: KAIM W. , MATHEIS W.
Published: May 2016

The complexes (III) containing the novel 3,3'‐diazamethylviologen chelate ligands are characterized by cyclic voltammetry, electronic absorption spectroscopy and ESR.
ChemInform Abstract: Preparation of (η‐C5H5)Ru(PPh3)(L)SR (R: 1‐C3H7, CHMe2, 4‐C6H4Me; L: PPh3, CO) and Insertion of CS2 into the Ru‐SR Bond to Give the Thioxanthates (η‐C5H5)Ru(PPh3)S2CSR (R: 1‐C3H7, CHMe2, 4‐C6H4Me). Crystal Structure of (η‐C5H5)Ru(PPh3)S2CS‐1‐C3H7.
Authors: SHAVER A. , PLOUFFE P.‐Y. , BIRD P. , LIVINGSTONE E.
Published: May 2016

For the reactions of (III) with CS2 a mechanism is proposed.
ChemInform Abstract: Incisterols, a New Class of Highly Degraded Sterols from the Marine Sponge Dictyonella incisa.
Authors: CIMINIELLO P. , FATTORUSSO E. , MAGNO S. , MANGONI A. , PANSINI M.
Published: May 2016

Four new sterols (I) are isolated and a plausible pathway for their biogenesis is proposed.
ChemInform Abstract: New Formal Synthesis of (.+‐.)‐Estrone.
Authors: SUNDER N. M. , PATIL P. A. , NARASIMHAN N. S.
Published: May 2016

The Torgov's compound (X), which is a precursor of (±)‐estrone (XI), is synthesized by a new Diels‐Alder methodology forming the C‐ring.
ChemInform Abstract: A Novel Synthesis of Cyclohexylnorstatine Isopropyl Ester, the C‐Terminal Component of a Renin Inhibitor.
Authors: ITO Y. , KAMIJO T. , HARADA H. , TERASHIMA S.
Published: May 2016

The diastereomeric β‐lactams (Vb) and (Vc), prepared from ethyl cyclohexylacetate (I) via cycloaddition reaction of the imines (III) with benzyloxyketene generated in situ, undergo acid‐catalyzed alcoholysis, forming the racemic β‐aminocarboxylates (VIIIb) and (VIIIc).
ChemInform Abstract: Reaction of 2,3,4‐Tri‐O‐acetyl‐α‐L‐rhamnopyranosyl Bromide with an Ethanolic Solution of Trimethylamine.
Authors: BOGNAR R. , FARKAS I.
Published: May 2016

According to an earlier report on the reaction between the title bromide (I) and an ethanolic solution of trimethylamine, the 1,4‐anhydro‐2,3‐di‐O‐acetyl‐α‐L‐rhamnopyranose (IV) is the product.
ChemInform Abstract: Bi5+ in the Monoclinically Distorted Perovskite Sr2BiNdO6.
Authors: LENZ A. , MUELLER‐BUSCHBAUM HK. +
Published: May 2016

Reaction between SrCO3, Bi2O3, and Nd2O3 (2:0.5:0.5) at 900 °C (4 d), using excess SrCl2 and KCl as fluxes, yields deep red single crystals of the title compound.
ChemInform Abstract: Catalyzed Sigmatropic Rearrangements. Part 10. Mechanism of the Palladium Dichloride Catalyzed Cope Rearrangement of Acyclic Dienes. A Substituent Effect Study.
Authors: OVERMAN L. E. , RENALDO A. F.
Published: May 2016

No simple substituent effect relationship is found in the PdCl2‐catalyzed Cope rearrangement of the eight hexadienes (V).
ChemInform Abstract: Improved Synthesis of 2,6,6‐Trimethyl‐1‐cyclohexene‐1‐acetaldehyde, a Key Intermediate for Drimane‐Related Sesquiterpenes.
Authors: DE JONG J. C. , WILDEMAN J. , VAN LEUSEN A. M. , FERINGA B. L.
Published: May 2016

The target aldehyde (IV) is prepared by two alternative pathways: either by chain elongation of cyclocitral (I) via coupling with the methoxymethylsilane (II) and acidic hydrolysis or by degradation of β‐ionone (V).
ChemInform Abstract: Preparation of (1S,4R)‐(‐)‐Camphanoyl Chloride (2‐Oxabicyclo(2.2.1)heptane‐1‐carbonyl Chloride, 4,7,7‐Trimethyl‐3‐oxo, (1S,4R)‐).
Authors: KAPPES D. , GERLACH H.
Published: May 2016

(+)‐Camphoric acid (I) is subjected to bromination and anhydride formation to give the bicyclic derivative (II).
ChemInform Abstract: Sodium Dichloroisocyanurate Oxidation of a Sterically Hindered Tetrahydro‐9(10H)‐acridinone.
Authors: MARAIS J. L. C. , PICKL W. , STASKUN B.
Published: May 2016

The tetrahydroacridinone (I) is oxidized with the isocyanurate mentioned in the title to give the cis‐diol (II).
ChemInform Abstract: Electrogenerated Electrophilic Reagents from Sulfur: A New Access to Bismethoxyaryl Sulfides.
Authors: LE GUILLANTON G. , DO Q. T. , SIMONET J.
Published: May 2016

Electrolytic oxidation of sulfur at a sulfur/carbon anode yields electrophilic sulfur which reacts with (het)aromatic methyl ethers such as (I) to produce bis(methoxy(het)aryl) sulfides such as (III).
ChemInform Abstract: Cleavage of the O‐Si Bond of Silyl Ethers of Type Ar‐O‐SiR1R2R3 (Ar: Aryl) in the Presence of Nucleophilic Agents and/or Acids.
Authors: GIRAL L. , MADIT N. , MONTGINOUL C. , SAGNES R. , SCHUE F.
Published: May 2016

For the construction of photosensitive organo‐silicon resins which undergo cleavage of the O‐Si bond in the presence of photosensitive salts the stability of the O‐Si bond of the compounds (I) and (II) is investigated.
ChemInform Abstract: Competitive Bimolecular Reduction in the Synthesis of Ketones by Michael Addition of Grignard Reagents to α‐Enones.
Authors: ALVAREZ‐IBARRA C. , ARIAS‐PETREZ M. S. , MOYA E. , RODRIGUEZ‐BARRANCO M. A.
Published: May 2016

Reaction of the α‐enones (II) with the Grignard compounds (I) leads to the formation of the ketones (III).
ChemInform Abstract: Synthesis of 1,4‐Dimethoxybenz(a)anthracenes and of 7,10‐Dimethoxycholanthrenes.
Authors: NEWMAN M. S. , CHOUDHARY A. R. , KUMAR K.
Published: May 2016

Treatment of N,N‐dimethyl‐5,8‐dimethoxy‐1‐naphthamide (I) with sBuLi and the carbonyl compounds (II) produces the lactones (III) which are reduced with zinc to form the 1‐naphthoic acids (IV).
ChemInform Abstract: Preparation of γ‐Oxo‐α‐amino Acids from Silyl Enol Ethers and Glycine Cation Equivalents: A Facile Synthesis of (.+‐.)‐5‐Hydroxy‐4‐oxonorvaline (HON).
Authors: MOOIWEER H. H. , ETTEMA K. W. A. , HIEMSTRA H. , SPECKAMP W. N.
Published: May 2016

Treatment of the chloroglycine derivative (I) with the Lewis acid SnCl4 generates the N‐acyliminium ion intermediate (II), a glycine cation equivalent, which reacts in situ with the silyl enol ethers (III) to yield the protected γ‐oxo‐α‐amino acids (IV).
ChemInform Abstract: Molecular S(O)PBr. Matrix IR Investigations and ab initio SCF Calculations
Authors: SCHUNCK ST. , GOECKE H.‐J. + , SCHNOECKEL H. +
Published: May 2016

confirm that cocondensation of the high‐temp.
ChemInform Abstract: Electrocatalytic Behavior of Ion‐Beam Mixed Ni‐Pd Surface Alloys for the Hydrogen Evolution Reaction in KOH.
Authors: AKANO U. G. , SMELTZER W. W. , THOMPSON D. A. , DAVIES J. A.
Published: May 2016

Ni‐Pd surface alloys containig 55‐90 at.% Pd are produced by subjecting evaporated layers of Ni and Pd on Ni substrates to 120 keV Ar+ ion bombardment and the alloy composition vs.
ChemInform Abstract: Stereoselective Syntheses of Carbon Homologated Vinylsilanes and Desilylated Olefins from α,β‐Epoxy Silanes Using Organolithium and Organolanthanoid Reagents.
Authors: UKAJI Y. , YOSHIDA A. , FUJISAWA T.
Published: May 2016

By treatment with organolithium or organolanthanoid compounds, e.g. (II), α,β‐epoxy silanes, e.g. (I), are alkylated and deoxygenated regio‐ and stereoselectively to give the corresponding vinylsilanes.
ChemInform Abstract: Regioselectivity of 7‐Oxabicyclo(2.2.1)hepta‐2,5‐diene ‐ Phenol Rearrangement as a Function of the Acid Promoter. Stereoselective Synthesis of 1,2,3,4‐Tetrahydro‐2‐hydroxynaphthalen‐2‐yl Methyl Ketones.
Authors: ANTONSSON T. , VOGEL P.
Published: May 2016

The 7‐oxabicyclo(2.2.1)heptane (I) reacts with the dienophile (II) in the presence of BF3·Et2O to give the Diels‐Alder cycloaddition product (III) which undergoes a second Diels‐Alder reaction with dehydrobenzene generated in situ from anthranilic acid (IV) to produce the tetrahydronaphthacene derivative (V).
ChemInform Abstract: Synthesis and Properties of the Derivatives of 2‐Alkylthio‐4‐oxo‐3,4‐(and ‐1,4)‐dihydropyrido(2,3‐d)pyrimidine‐5‐(and ‐6)‐carboxylic Acids.
Authors: SLADOWSKA H. , BARTOSZKO‐MALIK A. , ZAWISZA T.
Published: May 2016

Diethyl 2‐amino‐6‐methylpyridine‐3,4‐dicarboxylate (I) is cyclized with the isothiocyanates (II) to yield the thioxopyrido(2,3‐d)pyrimidinecarboxylates (III).
ChemInform Abstract: In situ Doping of Silicon Films Prepared by Low Pressure Chemical Vapor Deposition Using Disilane and Phosphine.
Authors: MADSEN L. D. , WEAVER L.
Published: May 2016

The effects of temp., pressure, flow, and gas ratio on the electrical properties and morphology of in situ doped Si‐films prepared by LPCVD using Si2H6 and PH3 are studied in order to optimize the deposition conditions.
ChemInform Abstract: Crystallized Melt Spun Sm(Fe10‐xCox)11Ti Alloys with (BH)max Products Larger than 90 kJ m‐3 (11.3 MGOe).
Authors: DING J. , ROSENBERG M.
Published: May 2016

The influence of the melt spinning and annealing conditions on the magnetic properties of Sm(Fe10‐xCox)11Ti alloys is studied for compositions with x = 0.5, 1, 1.5, and 2. Annealing of the amorphous melt‐spun alloys at 800‐850 °C yields crystallized samples with coercivities of 0.5‐0.6 T, relatively high magnetization values, and a better rectangularity of the hysteresis loops.
ChemInform Abstract: The β‐Manganese Type: High Pressure Synthesis and Structure Refinement of AlAu4.
Authors: BUECHLER H. + , RANGE K.‐J.
Published: May 2016

AlAu4 is prepared by reaction of the elements at 2 kbar and 1200 °C (modified Belt‐type apparatus, subsequent annealing at 420 °C).
ChemInform Abstract: Competitive Hydrogenation of Benzene and Toluene: Theoretical Study of Their Adsorption on Ruthenium, Rhodium, and Palladium.
Authors: MINOT C. , GALLEZOT P.
Published: May 2016

The MO calculations concerning the selectivity of toluene/benzene adsorption on Ru, Rh, and Pd metal surfaces corroborate the experimental results of hydrogenation on the corresponding catalysts.
ChemInform Abstract: Studies of Alkylheteroaromatic Compounds: New Syntheses of 1,3,4‐Oxadiazole, 1,3,4‐Oxadiazolo(3,2‐a)pyridine, 1,3,4‐Thiadiazole, 1,3,4‐Thiadiazolo(3,2‐a)pyridine, Phthalazine, and Thieno(3,4‐d)pyridazine Derivatives.
Authors: ELNAGDI M. H. , ERIAN A. W. , SADEK K. U. , SELIM M. A.
Published: May 2016

Several new alkyl heteroaromatic derivatives such as (III), (IX) and (XIII) are prepared.
ChemInform Abstract: Enantioselective Diels‐Alder Additions with New Chiral Lewis Acids Derived from Amino Acids.
Authors: SARTOR D. , SAFFRICH J. , HELMCHEN G.
Published: May 2016

The oxazaborolidine (III) is used as an optically active catalyst in the cycloaddition reaction of cyclopentadiene (IV) with methacrolein (V) or E‐crotonaldehyde (VII), yielding the norbornenecarbaldehydes (V) or (VIII).
ChemInform Abstract: Ethylene Oxidation over Small Silver Crystallites.
Authors: SEYEDMONIR S. R. , PLISCHKE J. K. , VANNICE M. A. , YOUNG H. W.
Published: May 2016

The influence of support (SiO2, η‐Al2O3, TiO2), crystallite size, and ethylene dichloride concentration on the catalytic behavior of Ag particles, which range from 3 to 1000 nm and contain no other promoter is studied.
ChemInform Abstract: Conjugate Addition of Lithium Diorganocuprate Reagents to the Enol Tosylate of a 1,2‐Diketone.
Authors: CHARONNAT J. A. , MITCHELL A. L. , KEOGH B. P.
Published: May 2016

The enol ether (I) reacts with lithium dimethylcuprate (II) to give the stereoisomeric adducts (III) and (IV).
ChemInform Abstract: Synthesis of Ethyl/Isopropyl/3‐Phenoxybenzyl/α‐Cyano‐3‐phenoxybenzyl (.+‐.)‐cis‐ and (.+‐.)‐trans‐2‐Alkyl/Aryl‐4‐oxo/hydroxy/acetoxy‐spiro(2,5)octane and ‐spiro(2,4)heptane‐1‐carboxylates.
Authors: ARBALE A. A. , NAIK R. H. , KULKARNI G. H.
Published: May 2016

Ten title esters are prepared and subsequently converted into hydroxy and acetate esters.
ChemInform Abstract: Benzotriazole‐Mediated Synthesis of Methylenebisanilines.
Authors: KATRITZKY A. R. , LAN X. , LAM J. N.
Published: May 2016

Anilines such as (I) are coupled with the benzotriazole (II) and formaldehyde (III) to produce the aminals (IV) which are rearranged under acidic conditions to give the symmetric methylenebisanilines (V).
ChemInform Abstract: Studies on the Biosynthesis of Clavulanic Acid. Part 5. Absolute Stereochemistry of Proclavaminic Acid, the Monocyclic Biosynthetic Precursor of Clavulanic Acid.
Authors: BAGGALEY K. H. , ELSON S. W. , NICHOLSON N. H. , SIME J. T.
Published: May 2016

In order to determine the absolute stereochemistry of proclavaminic acid, all four possible stereoisomers are prepared from (IVa) and (IVb).
ChemInform Abstract: A New Type of Oxotellurates(VI): Rb6(TeO5)(TeO4).
Authors: WISSER TH. , HOPPE R.
Published: May 2016

Single crystals of the title compound are prepared by reaction of the binary oxides at 680 °C (closed Ag‐cylinder, 45 d).
ChemInform Abstract: Enzyme‐Catalyzed Asymmetrization of Bis(hydroxymethyl)tetrahydrofurans.
Authors: ESTERMANN H. , PRASAD K. , SHAPIRO M. J. , REPIC O. , HARDTMANN G. E. , BOLSTERLI J. J. , WALKINSHAW M. D.
Published: May 2016

Various enzymes are tested in the selective hydrolysis of the bis(butyryloxymethyl)tetrahydrofurans (I).
ChemInform Abstract: Ring‐Strain Effects on the Efficiencies and Deuterium Effects on the Efficiencies and Regioselectivities of the Di‐π‐methane Rearrangement of Bicyclic Systems.
Authors: HEMETSBERGER H. , NISPEL F.
Published: May 2016

Deuterated benzobicycloalkenes such as (I) or (IV) yield di‐π‐methane rearrangement products such as (II) + (III) or (V) + (VI) on irradiation under sensitized conditions.
ChemInform Abstract: Mono‐Protected Diamines. Nα‐tert‐Butoxycarbonyl α,ω‐Alkanediamine Hydrochlorides from Amino Alcohols.
Authors: MATTINGLY P. G.
Published: May 2016

The N‐protected amino alcohols (III), prepared from the amino alcohols (I) and Boc2O (II), are converted into the azides (V) by reaction with mesyl chloride and subsequent treatment with sodium azide (IV) in the presence of a phase‐transfer catalyst.
ChemInform Abstract: Regioselective Reductive Alkylation of 3,4,5‐Trimethoxybenzaldehyde Dimethyl Acetal: A New Synthesis of 4‐Alkyl‐3,5‐dimethoxybenzaldehydes and 2,5‐Dialkyl‐1,3‐dimethoxybenzenes.
Authors: AZZENA U. , COSSU S. , DENURRA T. , MELLONI G. , PIRODDI A. M.
Published: May 2016

The trimethoxybenzaldehyde (I) is converted into the acetal (III) by reaction with the orthoformate (II).
ChemInform Abstract: Imidazolides of Acids of Trivalent Phosphorus.
Authors: GRACHEV M. K. , IORISH V. YU. , BEKKER A. R. , NIFANT'EV E. E.
Published: May 2016

The title compounds (III) are prepared by reaction of the phosphorous chlorides (Ia) ‐ (Ic) and the phosphinous chloride (Id) with sodium imidazolide (II).
ChemInform Abstract: Synthesis and Study of the Thermochemical Properties of 1‐p‐ and 3‐p‐Menthene.
Authors: KALECHITS G. V. , LUK'YANOVA V. A. , KOZINA M. P. , GAL'CHENKO G. L.
Published: May 2016

1‐p‐Menthene (II) is obtained, together with isomeric p‐menthenes and p‐menthanes, from the dipentene (I) in a coupled hydrogenation‐dehydrogenation reaction, using terpene alcohols such as isoborneol as H‐donor and a Cu/Ni catalyst.
ChemInform Abstract: ESCA and Gravimetric Reduction Studies on V/Al2O3 and V/SiO2 Catalysts
Authors: NAG N. K. , MASSOTH F. E.
Published: May 2016

are performed for samples with up to 20% V2O5 loading.
ChemInform Abstract: A New System for Catalytic Enantioselective Reduction of Achiral Ketones to Chiral Alcohols. Synthesis of Chiral α‐Hydroxy Acids.
Authors: COREY E. J. , BAKSHI R. K.
Published: May 2016

The ketones (I) are reduced with catecholborane in the presence of an oxazaborolidine catalyst to form the (R)‐alcohols (II) with high enantioselectivity.
ChemInform Abstract: Stabilization and Activation of Dienolates with Germanium and Tin. Stereo‐ and Regioselective Aldol Reactions, Regioselective Coupling Reactions, and Regioselective Synthesis of Amino Acid Derivatives.
Authors: YAMAMOTO Y. , HATSUYA S. , YAMADA J.
Published: May 2016

The reaction of the dienolates derived from α,β‐unsaturated esters such as (I) with tributylstannyl chloride (II) yields the γ‐stannylated derivative (III) which is coupled with the aldehydes (IV) or with the carbon nucleophiles (VI).
ChemInform Abstract: The Generation and Use of a Masked α‐Acyl Cation in Aromatic Substitution Reactions. Ag+‐Induced Reactions of 3‐(Bromomethyl)‐5,6‐dihydro‐1,4,2‐dioxazine Derivatives.
Authors: SHATZMILLER S. , BERCOVICI S.
Published: May 2016

Bromination of the alkyldihydrodioxazines (I) with N‐bromosuccinimide in the presence of benzoyl peroxide yields the bromoalkyl derivatives (II) which are substituted to produce the azides (IV) and fluorides (VI).
ChemInform Abstract: The Synthesis of Fused Ring Nitrogen Heterocycles via Regiospecific Intramolecular Heck Reactions.
Authors: GRIGG R. , SRIDHARAN V. , STEVENSON P. , SUKIRTHALINGAM S. , WORAKUN T.
Published: May 2016

A series of fused ring systems is prepared via palladium‐catalyzed regiospecific 5‐exo‐ (→ (II)), 6‐endo‐ (→ (IV)) or 6‐exo‐trig (→ (VI), (VII)) cyclization.
ChemInform Abstract: Synthesis and Properties of 6H‐Benzo(hi)pyrrolo(2,1,5‐cd)indolizin‐6‐ones.
Authors: NOGUCHI M. , YAMAMOTO T. , KAJIGAESHI S.
Published: May 2016

The dihydroquinolone (I) is N‐alkylated with the bromo ketones (II) and then cyclized to give the dihydropyrroloquinolinones (IV) which undergo cycloaddition reaction with dimethyl acetylenedicarboxylate (V), forming the benzopyrroloindolizinones (VI) after dehydrogenation.
ChemInform Abstract: Synthesis and Characterization of 1,3‐Dithia‐2‐boryl(3)ferrocenophanes.
Authors: FEST D. , HABBEN C. D.
Published: May 2016

1,3‐Dithia‐2‐boryl(3)ferrocenophanes are obtained as shown for the examples (III).
ChemInform Abstract: Synthesis of 3‐Fluorodiaminopimelic Acid Isomers as Inhibitors of Diaminopimelate Epimerase: Stereocontrolled Enzymatic Elimination of Hydrogen Fluoride.
Authors: GELB M. H. , LIN Y. , PICKARD M. A. , SONG Y. , VEDERAS J. C.
Published: May 2016

Two hydroxylated analogues (III) and (IV) and four fluorinated analogues such as (VIII) and (IX) of diaminopimelic acid are synthesized in stereochemically pure form.
ChemInform Abstract: Amino Acids. Part 8. A Novel Synthesis of γ‐Carboxy‐L‐glutamic Acid from L‐5‐Oxoproline Esters.
Authors: EFFENBERGER F. , MUELLER W. + , KELLER R. , WILD W. , ZIEGLER T.
Published: May 2016

N‐Substituted esters of L‐5‐oxoproline, e.g. (I), react with phosgene (II) to give 4‐carboxylated compounds such as (III), which are coupled with alcohols to form the corresponding oxoprolinates, e.g. (V).
ChemInform Abstract: Platina(IV) Cyclobutane Chemistry: Mechanism of the Ring Homologation Reaction.
Authors: HOBERG J. O. , JENNINGS P. W.
Published: May 2016

Treatment of (I) or (III) with Zeise's dimer (cat.) produces a solid tetrameric complex having a platina(IV)cyclobutane moiety; reaction of this metallacyclic precipitate with DMSO gives (II) and (IV), respectively.
ChemInform Abstract: Photochemical Oxygenation of Styrene by Pyrimido(5,4‐g)pteridine 10‐Oxide as a Chemcial Mimic of Hemin‐Catalyzed Oxygenation.
Authors: SAKO M. , OHARA S. , HIROTA K. , MAKI Y.
Published: May 2016

Irradiation of styrene (I) in the presence of (II) (best results at around 365 nm) for 10 min results in oxygen transfer from excited (II) to (I) via a single electron transfer (SET) process according to (II)* + (I) → (II)·‐/(I)·+ to give deoxygenated pteridine (V) and the oxygenated styrene derivatives (III) and (IV) (quantum yields 0.02 and 0.005, respectively).
ChemInform Abstract: α‐Trifluoromethyl Substituted α‐Hydroxy Acids with Alkyne Functions in the Side Chain.
Authors: SEWALD N. , BURGER K.
Published: May 2016

The α‐hydroxy acid esters (III) and (VI) are synthesized according to the scheme.
ChemInform Abstract: Retrodienic Reactions. Part 24. Flash Vacuum Thermolysis of 2,3‐Dihydro‐1,4‐oxathiin: Synthesis, Photoelectronic Spectroscopy, and Dienophilic Reactivity of Thioxoethanal.
Authors: BOURDON F. , RIPOLL J.‐L. , VALLEE Y. , LACOMBE S. , PFISTER‐GUILLOUZO G.
Published: May 2016

Flash vacuum thermolysis of the dihydrooxathiins (I) at 720°C forms the α‐oxo thioaldehydes (II).
ChemInform Abstract: New Short Synthesis of Isoquinoline‐4‐carboxylic Acid and 2‐Aza‐3,3a‐dihydroazulene‐3a‐carboxylic Acid Derivatives.
Authors: WESSJOHANN L. , SKATTEBOEL L. , DE MEIJERE A.
Published: May 2016

Reaction of benzophenonimine (I) with methyl cyclopropylideneacetate (II) results in cyclization to form the spirodihydroisoquinoline (III).
ChemInform Abstract: Reaction of Compounds Containing a N‐Si Bond with Alkoxyaminomethanes.
Authors: PUDOVIK M. A. , TERENT'EVA S. A. , PUDOVIK A. N.
Published: May 2016

Methoxydiethylaminomethane (I) reacts with the silylamines (II) in the presence of BF3 etherate to give the symmetric aminals (III) and the silyl methyl ether (IV).
ChemInform Abstract: Synthesis of Homoleptic Silylphosphido Complexes (M(P(SiMe3)2)(μ‐P(SiMe3)2))2, Where M: Zn, Cd, and Their Use in Metalloorganic Routes to Cd3P2 and MGeP2.
Authors: GOEL S. C. , CHIANG M. Y. , BUHRO W. E.
Published: May 2016

The synthesized title complexes (III) ((IIIa): space group P1, Z=1) appear to be the first homoleptic phosphido complexes of Zn and Cd and the first bis(trimethylsilyl)phosphido complexes in general.
ChemInform Abstract: Conventionally Prepared Submicrometer Lead‐Based Perovskite Powders by Reactive Calcination.
Authors: SHROUT T. R. , PAPET P. , KIM S. , LEE G.‐S.
Published: May 2016

Highly reactive powders of Pb‐based perovskites such as PbTiO3, PbZrO3, Pb(Zr0.53Ti0.47)O3 and Pb(Mg0.33Nb0.67)O3 are prepared by reacting the reagent‐grade raw materials (2 PbCO3·Pb(OH)2 or PbO, MgCO3·Mg(OH)2, TiO2, Nb2O5, ZrO2) near the temp. of maximum volumetric expansion.
ChemInform Abstract: Diastereoselective Organocuprate Addition to Homochiral Ketals of 3‐Acetylcyclopent‐2‐en‐1‐one.
Authors: JUNG M. E. , LEW W.
Published: May 2016

The diols (I) react with cyclohexenone (II) or with the bromomethoxycyclohexene (IV) according to different literature‐known methods to give the acetals (III).
ChemInform Abstract: Intramolecular Addition of Alkyllithiums to Acetylenes: Regiospecific 4‐, 5‐, and 6‐exo‐dig Cyclizations.
Authors: BAILEY W. F. , OVASKA T. V.
Published: May 2016

The iodoalkylphenylacetylenes (I), (VI), (X), and (XIV) undergo halogen lithium exchange reaction at low temperatures.
ChemInform Abstract: Photochemistry of Irgasan‐Triflate: A Simple Conversion of an Aromatic Hydroxyl Group to Chlorine in the Synthesis of Polychlorinated Diphenyl Ethers and Polychlorinated Dibenzofurans.
Authors: CHANG Y.‐S. , JANG J.‐S. , DEINZER M. L.
Published: May 2016

Several chlorophenoxy phenols, e.g. (I), are converted to their triflates, e.g. (III), (VI), which undergo triplet‐sensitized photolytic cyclizations in acetone to give chlorodibenzofurans, e.g. (IV), or singlet state substitution reaction in CCl4 saturated with Cl2 gas to give the corresponding chlorine substituted diphenyl ethers, e.g. (V), (VII).
ChemInform Abstract: 10‐Methylacridine Dimer Acting as a Unique Two‐Electron Donor in the One‐Electron Reduction of Triphenylmethyl Cation.
Authors: FUKUZUMI S. , KITANO T. , ISHIKAWA M.
Published: May 2016

In contrast to the monomer, i.e. 9,10‐dihydro‐10‐methylacridine, which acts as a normal hydride donor toward (II), the dimer (I) acts as a pure two‐electron donor yielding the triphenylmethyl radical.
ChemInform Abstract: Cyclohexenyl Transfer: Synthesis of Cyclohexenyl‐Substituted Homoallylic Alcohols via a Tin(IV) Diethyl Tartrate Complex.
Authors: YADAV V. K.
Published: May 2016

(+)‐Diethyl tartrate (R,R)‐(I) is consecutively treated with sodium hydride (II), tin dichloride (III), and 3‐bromocyclohexene (IV) to generate the tin(IV) complex (V) mentioned in the title.
ChemInform Abstract: Preparation of 2‐Methoxy‐3,4‐methylenedioxybenzaldehyde (Croweacin Aldehyde) from Pyrogallol.
Authors: SHIRASAKA T. , TAKUMA Y. , IMAKI N.
Published: May 2016

Pyrogallol (I) is selectively monomethylated to give (III).
ChemInform Abstract: Synthesis of 1‐Aryl‐3‐methyl‐but‐2‐en‐1‐ones Intermediates for the Synthesis of Chromanone Derivatives.
Authors: VIJAYALAKSHMI C. S. , SUBRAMANIAN M. , PRASAD K. J. R.
Published: May 2016

Reaction of the polyphenols (I), (VI) and (X) with the chloride (II) gives the corresponding title compounds, among them the hitherto unknown products (IV), (V), (VII), (VIII) and (XI).
ChemInform Abstract: Tetrazolo(1,5‐a)pyridines and Furazano(4,5‐b)pyridine 1‐Oxides.
Authors: LOWE‐MA C. K. , NISSAN R. A. , WILSON W. S.
Published: May 2016

The reaction of the 3‐nitro‐2‐chloropyridines (I) with sodium azide yields the tetrazolopyridines (IV) via the 2‐azidopyridines (III).
ChemInform Abstract: Nonenzymatic Synthesis and Properties of 5‐Aminoimidazole Ribonucleotide (AIR). Synthesis of Specifically 15N‐Labeled 5‐Aminoimidazole Ribonucleoside (AIRs) Derivatives.
Authors: BHAT B. , GROZIAK M. P. , LEONARD N. J.
Published: May 2016

The chemical synthesis of 5‐aminoimidazole ribonucleotide (AIR) (III) from the ribonucleoside (AIRs) (I) is described; the former is the precursor of the purine ribonucleotides in vivo in both prokaryotic and eukaryotic systems as well as the biosynthetic precursor of the pyrimidine portion of vitamin B1 in certain prokaryotic organisms.
ChemInform Abstract: Jahn‐Teller Effect and Crystal Structure Distortion of the Copper Fluoro Perovskites NaCuF3 and RbCuF3.
Authors: KAISER V. , OTTO M. , BINDER F. , BABEL D.
Published: May 2016

Single crystals of NaCuF3 and RbCuF3, obtained by solid‐state reaction from the binary fluorides, belong to the triclinic space group P1, Z=4 and to the tetragonal space group I4/mcm, Z=4, respectively.
ChemInform Abstract: Structure of Perhydrotriphenylene.
Authors: HARLOW R. L. , DESIRAJU G. R.
Published: May 2016

The title compound (I) (space group P21/n with Z=4) forms a large number of inclusion compounds with small organic guest molecules.
ChemInform Abstract: Directed Lithiation of Chlorobenzenes. Regioselectivity and Application to a Short Synthesis of Benzocyclobutenes.
Authors: IWAO M.
Published: May 2016

The chloroarenes (I) undergo selective ortho‐lithiation with sec‐butyllithium.
ChemInform Abstract: A Convenient and Facile Synthesis of Fluorine‐Containing 1H‐, 2H‐Benz‐(g)indazoles, and Naphthisoxazoles by Aromatic Nucleophilic N‐N Exchange Reaction of N,N‐Dimethyl‐2,4‐bis(trifluoroacetyl)‐1‐naphthylamine with Hydrazines and Hydroxylamine.
Authors: HOJO M. , MASUDA R. , OKADA E.
Published: May 2016

The bis(trifluoroacetyl)‐1‐naphthylamine (I) undergoes an aromatic nucleophilic N‐N exchange reaction with hydrazines such as (II) followed by cyclocondensation to yield the benzindazoles (III) and (IV).
ChemInform Abstract: A Simple Route to 2H‐Naphtho(1,2‐c)1,2,3‐triazoles.
Authors: HARTMANN H. , SCHULZE M. , GUENTHER R. +
Published: May 2016

The readily available chloronaphthalenes (I) and (IV) react smoothly with NaN3 (II) in polar, aprotic solvents to yield the title compounds (III) and (V), respectively.
ChemInform Abstract: Diels‐Alder Reactions of Dieno‐Pyranosides. Anomeric vs Allylic Stereoselection.
Authors: GIULIANO R. M. , BUZBY J. H. , MARCOPULOS N. , SPRINGER J. P.
Published: May 2016

Diels‐Alder reaction of chiral dienes such as (I), derived from carbohydrates, with dienophiles such as (II) yields cycloadducts such as (III) and (IV).
ChemInform Abstract: Non‐Steroidal Antiinflammatory Agents. Part 2. Synthesis of Novel Pyrazole and Pyrazoline Derivatives of 4(3H)‐Quinazolinone.
Authors: FARGHALY A. M. , CHAABAN I. , KHALIL M. A. , BEHKIT A. A.
Published: May 2016

The 2‐methyl‐3‐arylquinazolinones (I) are coupled with the phenylglyoxals (II) to give the propenones (III).
ChemInform Abstract: Preparation of β‐Silyl α,β‐Unsaturated Esters and 3‐Silylallyl Alcohols.
Authors: LARSON G. L. , SODERQUIST J. A. , RIVERA CLAUDIO M.
Published: May 2016

The acetylsilanes (I) are olefinated by reaction with the α‐lithiated β‐silylcarboxylates (II), forming predominantly the Z‐configurated β‐silylalkenoates (III).
ChemInform Abstract: Enzyme‐Catalyzed Reactions. Part 4. Aldolase‐Catalyzed C‐C Bond Formation for Stereoselective Synthesis of Nitrogen‐Containing Carbohydrates.
Authors: STRAUB A. , EFFENBERGER F. , FISCHER P.
Published: May 2016

The aldol addition reaction of the dihydroxyacetone monophosphate (I) with 3‐azido‐2‐hydroxypropanal (II) is catalyzed by rabbit muscle aldolase and yields stereoselectively the ketose 1‐phosphates isolated as the Ba‐salts (III) and (IV).
ChemInform Abstract: Is N8 Cubane Stable?
Authors: ENGELKE R. , STINE J. R.
Published: May 2016

Ab initio calculations indicate that N8 is a highly energetic compound, metastable to dissociation into four N2 molecules with an energy release of 530 kcal/mol.
ChemInform Abstract: Synthesis of New 8‐Azapurines.
Authors: RIED W. , GURYN R. , LAOUTIDIS J.
Published: May 2016

The p‐chlorobenzyl triazole (I) is subjected to all three reaction sequences given in the scheme leading to (V), (VII), and (X), respectively.
ChemInform Abstract: Remarkable Differences in the Reactivity of Echinadiol and Shiromodiol, Biologically Active Epimeric Germacrane Derivatives.
Authors: APPENDINO G. , TETTAMANZI P. , GARIBOLDI P.
Published: May 2016

Whereas from echinadiol (III) on acid treatment the secoguaiane (IV) and the guaiane (V) are formed, its epimer shiromodiol (I) gives no skeletal rearrangement under these conditions.
ChemInform Abstract: Preparation of Optically Active 6′‐Fluorocarbocyclic Nucleosides Utilizing an Enantiospecific Enzyme‐Catalyzed Baeyer‐Villiger Type Oxidation.
Authors: LEVITT M. S. , NEWTON R. F. , ROBERTS S. M. , WILLETTS A. J.
Published: May 2016

Treatment of the racemic bromofluoronorbornanone (±)‐(I) with microorganisms leads to the formation of the optically active ketone (‐)‐(I) and the dihalo lactone (‐)‐(II) or the dihalonorbornanol (X).
ChemInform Abstract: Chiral Synthesis of Polyketide‐Derived Natural Products. Part 31. Stereoselective Synthesis of Erythronolide A by Extremely Efficient Lactonization Based on Conformational Adjustment and High Activation of Seco‐Acid.
Authors: HIKOTA M. , TONE H. , HORITA K. , YONEMITSU O.
Published: May 2016

Using Yamaguchi's mixed anhydride method under the conditions shown, the seco‐acid (V) can be cyclized very rapidly and with an excellent yield to give the desired lactone (VII).
ChemInform Abstract: Synthesis and Characterization of a SiAlON Glass.
Authors: SATO R. K. , BOLVIN J. , MCMILLAN P. F.
Published: May 2016

Homogeneous SiAlON glasses containing up to 1 wt.% nitrogen are prepared via a pressureless method (melting of a powder mixture of SiO2, Al2O3, and amorphous silicon nitride at 1650‐1700 °C using a radio‐frequency generator) with a controlled quench rate (400‐500 °C/min).
ChemInform Abstract: Thermal Stability and Characterization of γ‐Al2O3 Modified with Rare Earths.
Authors: OZAWA M. , KIMURA M. , ISOGAI A.
Published: May 2016

Modified γ‐Al2O3 samples are prepared by impregnation of the alumina with lanthanoid nitrate solutions followed by drying and heat treatment at 600 °C for 3 h. The surface area is found to increase from 12 m2/g for pure Al2O3 to 40 m2/g for CeO2‐modified Al2O3 and to 51‐59 m2/g for Ln2O3‐modified samples (Ln: Y, La, Nd, Sm, Gd, Dy, Yb).
ChemInform Abstract: Decomposition of Pernitric Acid in Aqueous Solution
Authors: LAMMEL G. , PERNER D. , WARNECK P.
Published: May 2016

is studied in the pH range 2‐7 because it is of interest for atmospheric processes involving aerosol and cloud water chemistry.
ChemInform Abstract: Convergent Synthesis of Monodisperse Dendrimers Based Upon 1,3,5‐Trisubstituted Benzenes.
Authors: MILLER T. M. , NEENAN T. X.
Published: May 2016

The highly symmetrical and well soluble title compounds (IX) (10 phenyl rings) and (X) (22 phenyl rings) and their amidic analogues (XI) and (XII) are prepared (no further details or yields given).
ChemInform Abstract: Cyclohepta(b)thiophene Derivatives. Part 3. Dehydrogenation of Cyclohepta(b)thiophenes.
Authors: SEN P. K. , LAHIRI S.
Published: May 2016

Dehydrogenation of the title compound (IVa) with selenium gives eight compounds; the three major ones are (V), (VI) and (VII).
ChemInform Abstract: Abnormal Fischer Indolization and Its Related Compounds. Part 22. Fischer Indolization of Ethyl Pyruvate 2‐(2‐Chloro‐ and 2,6‐Dichlorophenyl)methylhydrazones.
Authors: ISHII H. , MURAKAMI Y. , ISHIKAWA T.
Published: May 2016

Condensation of the hydrazines (I) with the pyruvate (II) gives the corresponding hydrazones (III).
ChemInform Abstract: A 1,2:2,1‐Bis(2‐silapropane‐1,3‐diyl)diborane(6). Stabilization Product of Bis(trisilyl)diborane(2)?
Authors: MENNEKES T. , PAETZOLD P. , BOESE R.
Published: May 2016

In connection with investigations on two‐coordinated boron it is tried to prepare the corresponding diborane(2) by the reaction of (I) with Na/K alloy.
ChemInform Abstract: Novel Platinum Complexes Enable Selective C‐H and C‐Si Activation of Tetramethylsilane at Room Temperature.
Authors: HOFMANN P. , HEISS H. , NEITELER P. , MUELLER G. + , LACHMANN J.
Published: May 2016

Starting with the dichloro derivative (I), the hydridoneopentyl complex (IV) (space group P21/n, Z=4) is prepared which, by elimination of neopentane, becomes a good precursor of a coordinative and electronically highly saturated ligand‐Pt(0) species.
ChemInform Abstract: En Route to Thromboxane Compounds from Carbohydrates. Part 1. Synthesis of the Unsaturated Sugar Precursors.
Authors: PELYVAS I. , LINDHORST T. , THIEM J.
Published: May 2016

The hex‐2‐enopyranosides (VII) and (VIII), representing chiral precursors for the carbohydrate‐based construction of the ring systems of thromboxane A2 and B2, are prepared as shown for (VII) by means of the Claisen‐type rearrangement of the hex‐3‐enopyranoside (V).