bluuebunny/crossref_metadata_2025 huggingface dataset:
ChemInform Abstract: Synthesis of Highly Functionalized trans‐Alkene Isosteres of Dipeptides.
Authors: LEHMAN DE GAETA L. S. , CZARNIECKI M. , SPALTENSTEIN A.
Published: May 2016

The phenyl sulfones (III) and the tetrahydropyranyloxy aldehydes (VII), prepared by known methods, are coupled in the presence of a dialkylaluminum alkoxide after deprotonation of (III) to form the β‐hydroxy sulfones (VIII).
ChemInform Abstract: Naturally Occurring Rubiadins. A Caveat.
Authors: BOISVERT L. , BRASSARD P.
Published: May 2016

The di(siloxy)ethoxydiene (II), generated from ethyl acetoacetate (I) by twofold silyl enolization, undergoes cyclocondensation with the chloronaphthoquinones (III), forming the naturally occurring anthraquinones (IV) (rubiadins).
ChemInform Abstract: Asymmetric Cyclization of 2‐Alkenylphenols. A Comparative Study of the Use of Palladium(II) and Titanium(IV) Complexes.
Authors: HOSOKAWA T. , KONO T. , SHINOHARA T. , MURAHASHI S.‐I.
Published: May 2016

Treatment of the pentenylphenols (I) with cupric acetate and oxygen in the presence of a Pd(II) catalyst results in the formation of the chiral vinylchromans (II).
ChemInform Abstract: Nitration of 2,2,4‐Trimethyl‐4‐phenyl‐1,2,3,4‐tetrahydroquinoline and Its N‐Acyl Derivatives.
Authors: SHMYREVA ZH. V. , SHIKHALIEV KH. S. , ZALUKAEV L. P. , IVANOV YU. A. , RYABOKOBYLKO YU. S. , POKROVSKAYA I. E.
Published: May 2016

Nitration of the tetrahydroquinolines (I) gives the dinitro derivatives (III) and (V), the trinitro compounds (IVa) and (IVc), or the mono nitro compounds (VIb) ‐ (VId) depending on the reaction conditions.
ChemInform Abstract: Synthesis and Structure of 2α‐Hydroxytropan‐3‐one.
Authors: MORIARTY R. M. , PRAKASH O. , VAVILIKOLANU P. R. , VAID R. K. , FREEMAN W. A.
Published: May 2016

Oxidation/hydroxylation of the tropanone (I) with iodosylbenzene diacetate gives the 2α‐hydroxytropan‐3‐one dimethyl acetal (III) which undergoes acidic hydrolysis, yielding the title compound (IV).
ChemInform Abstract: Regioselective Free Radical Alkylation of Uracils with Diacyl Peroxides.
Authors: ITAHARA T. , IDE N.
Published: May 2016

The dimethyluracil (I) is treated with acyl peroxides, e.g. dibenzoyl peroxide, in solvents such as (II) which contain methylene groups to give the 5‐alkylated uracils (III).
ChemInform Abstract: Aromatic Substitution. Part 56. Observation of AlCl3‐Catalyzed Trialkylsilylation of Benzene and Toluene with Chlorotrialkylsilanes in the Presence of Huenig Bases.
Authors: OLAH G. A. , BACH T. , PRAKASH G. K. S.
Published: May 2016

When benzene (I) or toluene (IV) are treated with the chlorotrialkylsilanes (II) in the presence of aluminum trichloride and di(isopropyl)ethylamine (Huenig base), only small amounts of the silylated benzenes (III) or (V) ‐ (VII) are detected.
ChemInform Abstract: Vinyl Esters of Phosphorus Acids. Part 30. Betaines in the Vinylcholine Series.
Authors: GOLOLOBOV YU. G. , OGANESYAN A. S. , PETROVSKII P. V.
Published: May 2016

The chloropropenyl phosphate (I) is coupled with triethylamine (II) to give the ammonium salt (III) which is converted to the betaine (IV) upon heating in vacuo.
ChemInform Abstract: Organo‐Phosphorus Compounds from Dialkenyl Ethers.
Authors: ROZINOV V. G. , KOLBINA V. E. , DONSKIKH V. I. , RATOVSKII G. V. , LAPKANOVA L. A. , LAVROV V. I. , EFREMOV V. G.
Published: May 2016

Phosphorylation of cis‐propenyl vinyl ether (I) with phosphorus pentachloride (II) produces the trichlorophosphonium hexachlorophosphate (III) which is transformed into the phosphonic dichloride (IV) or the phosphonous dichloride (V) upon treatment with sulfur dioxide and tetrabutylammonium iodide respectively.
ChemInform Abstract: Synthesis of Diarylvinyl‐ and Diaryl(2‐chloroethyl)phosphine Oxides from Aluminum Chloride Complexes of Diarylchlorophosphines and Hydrogen Chloride.
Authors: CHAUZOV V. A. , STUDNEV YU. N. , IZNOSKOVA M. G. , FOKIN A. V.
Published: May 2016

Alkylation of the chlorophosphine complexes (I) with 2‐chloroethyl dichlorophosphate (II) and subsequent treatment with alkali give the diarylvinylphosphine oxides (III) which are transformed into the chloroethylphosphine oxides (IV) upon addition of hydrogen chloride.
ChemInform Abstract: Synthesis and Novel Properties of N‐Phosphoryl Peptides.
Authors: MA X. , ZHAO Y.
Published: May 2016

The N‐phosphorylproline (III) is coupled with the prolinate (VI) to yield the dipeptide ester (VII) via intermediate activation as the mixed anhydride (V).
ChemInform Abstract: Diastereoselective Synthesis of a Resolved Secondary Arsine Complex: Asymmetric Synthesis of (R)‐(‐)589‐Ethylmethylphenylarsine.
Authors: SALEM G. , WILD S. B.
Published: May 2016

The cyclopentadienyldicarbonyliron complex (I) is photochemically coupled with the chiral diphosphine (II), yielding the optically active complex (V) which reacts with the racemic arsine (±)‐(VI) under optical resolution to produce the chiral iron arsine complex (VII).
ChemInform Abstract: A Convenient One‐Pot Synthesis of Unsymmetrical Selenium Compounds Using Bis(trimethylsilyl) Selenide.
Authors: SEGI M. , KATO M. , NAKAJIMA T. , SUGA S. , SONODA N.
Published: May 2016

Bis(trimethylsilyl) selenide (I) reacts with butyllithium (II) to give the salt (III) which is coupled with the halides (IV) to yield the alkyl(benzyl) trimethylsilyl selenides (V).
ChemInform Abstract: Synthesis and Electrochemical Studies of Catenates: Stabilization of Low Oxidation States by Interlocked Macrocyclic Ligands.
Authors: DIETRICH‐BUCHECKER C. , SAUVAGE J.‐P. , KERN J.‐M.
Published: May 2016

The complexes (I) and (II) are prepared by mixing stoichiometric amounts of metal salts and the corresponding ligands in MeOH and CH2Cl2.
ChemInform Abstract: Metal Complexes of α‐Hydroxyiminophosphonic Acid Derivatives. Preparation and Crystal Structures of Calcium and Cadmium Complexes of Methyl (E)‐α‐Hydroxyiminobenzylphosphonate.
Authors: GIBSON D. , KARAMAN R.
Published: May 2016

Both Ca and Cd react with the ligand (I) in aqueous solution to yield insoluble polymeric complexes.
ChemInform Abstract: Preparation and Crystal Structure of Thallium 2,4,6‐Tris(trifluoromethyl)phenoxide, a Compound of Thallium(I) with Coordination Number 2 at the Thallium Atom.
Authors: ROESKY H. W. , SCHOLZ M. , NOLTEMEYER M. , EDELMANN F. T.
Published: May 2016

The air‐ and moisture‐sensitive title compound (V) crystallizes in the space group P21/c with Z=2.
ChemInform Abstract: Synthesis and Properties of Optically Active Organo‐Molybdenum Compounds.
Authors: MORIARTY K. J. , RAUSCH M. D.
Published: May 2016

The fulvene (I) is reduced with lithium aluminum hydride (II) in the presence of a chiral base, yielding the optically active cyclopentadienyllithium agent (III).
ChemInform Abstract: Trapping of the Low‐Valent Nitrene Complex (CO)5W=NPh with PPh3. Formation of the Phenylnitrene Transfer Product PhN=PPh3.
Authors: SLEIMAN H. F. , MERCER S. , MCELWEE‐WHITE L.
Published: May 2016

Decomposition of the zwitterion (I) under thermal or photochemical conditions results in formation of the organic product (III) and other compounds apparently derived from the low‐valent W nitrene complex (II).
ChemInform Abstract: Synthesis and Reactivity of Functionalized Rhenium Phosphido Complexes (η5‐C5H5)Re(NO)(PPh3)(PXX′): An Unusual CCl4 1,3‐Addition Leading to an Exo‐Substituted η4‐Cyclopentadiene Complex.
Authors: BUHRO W. E. , ARIF A. M. , GLADYSZ J. A.
Published: May 2016

The phenylphosphido complex (I) reacts with one equiv. CCl4 (II) to give the labile chlorophenylphosphido analogue (III) which is characterized in situ by NMR spectroscopy and methylation to the isolable bis(phosphine) complex (V).
ChemInform Abstract: Synthesis and Properties of a Novel Oxo‐Bridged Dinuclear Iron(III) Complex Containing Only Oxygen Donating Ligands.
Authors: FENG X. , BOTT S. G. , LIPPARD S. J.
Published: May 2016

The title complex (IV) models physical properties of proteins having exclusively oxygen coordination in their bridged Fe cores.
ChemInform Abstract: Synthesis, Characterization and Electrochemistry of Nickel(II) Complexes of Schiff Base Ligands Containing a Disulfide Group. Crystal Structure of (Ni((o‐OC6H4CH=NC6H4)2S2)(MeOH))·MeOH.
Authors: MANZUR C. , BUSTOS C. , SCHREBLER R. , CARRILLO D. , KNOBLER C. B. , GOUZERH P. , JEANNIN Y.
Published: May 2016

The two ligands (III), which possess six donor atoms, react in methanol with nickel acetate to give two different air‐stable complexes.
ChemInform Abstract: Structural, Magnetic, and Electrochemical Studies on Macrocyclic Dicopper(II) Complexes with Varying Chelate Ring Size.
Authors: MANDAL S. K. , THOMPSON L. K. , NEWLANDS M. J. , GABE E. J.
Published: May 2016

The binuclear macrocyclic Cu(II) complexes (I)‐(IV) involving six‐dentate ligands derived from corresponding α,ω‐diamines and 2,6‐(RCO)2‐phenols, which have chelate ring of varying size, are compared in terms of their structural, magnetic and electrochemical properties.
ChemInform Abstract: Enantioselective Catalysis. Part 7. Complexes of (P(R,S),3R,4R,P′(R,S))‐3,4‐Bis(phenylphosphino)pyrrolidines. Preparation of Optically Pure 1,2‐Bisphosphane Ligands with Four Stereocenters which Bear Additional Functional Groups.
Authors: NAGEL U. , RIEGER B. , BUBLEWITZ A.
Published: May 2016

The diphosphinopyrrolidines (I) are converted to the palladium(II) complexes (III) or (V) depending on the ratio of Pd salt to ligand.
ChemInform Abstract: (Ir2(μ‐CH2)(CO)4(Me2P‐CH2‐PMe2)2)(CF3‐SO3)2, an Unprecedented Electrophilic Methylene Complex. H‐ Addition to Prepare a Methyl‐Bridged Complex.
Authors: REINKING M. K. , FANWICK P. E. , KUBIAK C. P.
Published: May 2016

The title complex (III) (P212121, Z=4) shows a remarkable difference in its reactivity compared to Herrmann carbene complexes.
ChemInform Abstract: Synthesis and Crystal Structure of (Mo2FePt(.mu±sigma.,σ′,σ′′:η5‐CC5H4)2(CO)4(HB(pz)3)2) (HB(pz)3: hydrotris(pyrazol‐1‐yl)borate). A Complex Derived from a 1,1′‐Ferrocene Derivative with CMo(CO)2(HB(pz)3) Substituents.
Authors: DAVIES S. J. , HILL A. F. , PILOTTI M. U. , STONE F. G. A.
Published: May 2016

Starting with (I), obtained in 10% yield via a procedure developed previously for the synthesis of alkylidyne metal compounds, the title complex (V) (P21/a, Z=4) is prepared.
ChemInform Abstract: Synthesis and Pharmacological Properties of a Novel Cardioactive Steroid.
Authors: WERNER U. , MOELLER U. + , WAGNER P. , WELZEL P. , ZYLKA C. , MECHMANN S. , PUSCH H. , GLITSCH H. G.
Published: May 2016

It is known that cardioactive steroid lactones inhibit Na+/K+ ATPase, an enzyme which serves in the active transport of Na+ and K+ across the plasma membrane.
ChemInform Abstract: The Allylic Acetoxylation of Steroidal Enones.
Authors: ALAM Z. , AHMAD M. S. , KHAN N. Z.
Published: May 2016

In the presence of hippuric acid acetoxylation of cholest‐4‐en‐3‐one (I) affords a mixture of the 6‐acetoxy derivatives (III) and (IV), whereas in the absence of hippuric acid the cholestenone (I) is converted to a single product i.e. the 2α‐acetoxy derivative (V).
ChemInform Abstract: Enantioselective Synthesis of α‐Amino Acid Derivatives via the Stereoselective Alkylation of a Homochiral Glycine Enolate Synthon.
Authors: DELLARIA J. F. JUN. , SANTARSIERO B. D.
Published: May 2016

The phenylglycinol (I) is cyclized with the bromoacetate (II) to form the chiral tetrahydrooxazinone (III) which is N‐protected, yielding the derivatives (V).
ChemInform Abstract: Carbohydrate Analogues of Furacilin and Benzazon VII.
Authors: TASHPULATOV O. A. , AFANAS'EV V. A. , AKBAROVA M. U. , RAKHMATULLAEV I.
Published: May 2016

The protected β‐D‐glucopyranosyl isocyanate (Ia) and the isothiocyanate (Ib) are coupled with the furfural hydrazone (II) to give the (thio)semicarbazones (III) which are deacetylated to produce the free carbohydrates (IV).
ChemInform Abstract: Anatoxin‐a(s), a Potent Anticholinesterase from Anabaena flos‐aquae.
Authors: MATSUNAGA S. , MOORE R. E. , NIEMCZURA W. P. , CARMICHAEL W. W.
Published: May 2016

The title neurotoxic alkaloid (I) decomposes during storage at ‐20 °C to the products (II) and (III) (no yields given).
ChemInform Abstract: Novel Syntheses of the Carbapenem Key Intermediates, (3R,4R)‐4‐Acetoxy‐3‐((R)‐1‐(tert.‐butyldimethylsilyloxy)ethyl)‐2‐azetidinone and (3S,4R)‐3‐((R)‐1‐(tert.‐Butyldimethylsilyloxy)ethyl)‐4‐carboxymethyl‐2‐azetidinone, from (S)‐Ethyl Lactate.
Authors: ITO Y. , KOBAYASHI Y. , KAWABATA T. , TAKASE M. , TERASHIMA S.
Published: May 2016

Two types (X) and (XI) of the carbapenem key intermediates are efficiently synthesized from inexpensive (S)‐ethyl lactate (I).
ChemInform Abstract: A Versatile Synthesis of 1,1‐Dioxo 7‐Substituted Cephems: Preparation of the Human Leukocyte Elastase (HLE) Inhibitor 1,1‐Dioxo‐trans‐7‐methoxycephalosporanic Acid tert‐Butyl Ester.
Authors: BLACKLOCK T. J. , BUTCHER J. W. , SOHAR P. , ROTHAUSER LAMANEC T. , GRABOWSKI E. J. J.
Published: May 2016

The key intermediate in the preparation of the 7‐substituted 1,1‐dioxo cephems (IX) ‐ (XIII) is the diazo‐β‐lactam (VII), prepared by esterification, oxidation, and diazotization of 7‐aminocephalosporanic acid (I).
ChemInform Abstract: Structure and Bonding in the B2H5 Radical and Cation.
Authors: RUSCIC B. , SCHWARZ M. , BERKOWITZ J.
Published: May 2016

The title free radical is prepared in situ by the reaction of F atoms with B2H6 and studied by photoionization MS for the first time.
ChemInform Abstract: Characterization and Thermal Behavior of Free α‐Dodecawolframogermanic Acid, α‐H4(GeO4W12O36)·24 H2O.
Authors: WILDE W. , BAEKER C. , LUNK H.‐J.
Published: May 2016

The title compound is proved to be a wolframo Keggin acid by chemical analysis and by comparing its UV and IR spectral data with those of other Keggin heteropoly acids.
ChemInform Abstract: Substitution of Calcium by Rare Earth Elements in the High Tc Superconductor Bi2Sr2CaCu2O8+δ.
Authors: GROEN W. A. , STEENS R. , ZANDBERGEN H. W. , DIRKEN M. W. , MULDER F. M. , THIEL R. C.
Published: May 2016

It is found that the substitution of Ca by Ln(Nd‐Tm) stabilizes the formation of the Bi2Sr2CaCu2O8+δ‐type structure.
ChemInform Abstract: Reaction Sequencing During Processing of the 123 Superconductor
Authors: THOMSON W. J. , WANG H. , PARKMAN D. B. , LI D. X. , STRASIK M. , LUHMAN T. S. , HAN C. , AKSAY I. A.
Published: May 2016

(YBa2Cu3O7‐x) is studied for two precursor systems (citrate gels and "flashed nitrates") in air and helium environments.
ChemInform Abstract: Resistivity and Volume Anomalies of Lanthanum and Cerium Impurities in YNi2
Authors: SLEBARSKI A. , LANGEN J.
Published: May 2016

are observed, especially at low temp., during a study of the electronic structure of Y1‐xLnxNi2 compounds with Ln: La, Ce, Nd, Gd, and Lu.
ChemInform Abstract: Passive Behavior of Iron in Alkaline Phosphate Solutions.
Authors: SIMON C. , HURLEN T.
Published: May 2016

The quasi‐stationary passive current of Fe is shown to be independent of the stabilization potential and the pH in neutral and alkaline phosphate solutions (polarization measurements).
ChemInform Abstract: Thermochemical Characterization of Ultrafine Sr‐Hexaferrite.
Authors: KULKARNI S. D. , DESHPANDE C. E. , SHROTRI J. J. , GUNJIKAR V. G. , DATE S. K.
Published: May 2016

In order to understand the ferritization reaction leading to the formation of hexagonal SrFe12O19 simultaneous DTA/DTG/TG plots are monitored during the course of two different synthetic routes, namely, the ceramic method starting from α‐Fe2O3 and SrCO3 and the chemical coprecipitation method starting from solutions containing FeCl3·6 H2O and SrCl2·6 H2O. The IR spectra and XRD patterns of both of the products are nearly identical.
ChemInform Abstract: Cs3Tm2I9: Crystal Growth and Structure Determination.
Authors: WANG S. H. , LUO S. M. , EICK H. A. , KRAEMER K. + , MEYER G.
Published: May 2016

Single crystals of the title compound are prepared by oxidation of metallic Tm with HgI2 in the presence of CsI (1:1:1; evacuated quartz ampoule, 560‐620 °C, 5 d).
ChemInform Abstract: Unusual Coordination of Water to Iron(II) Amino Acid Basket‐Handle Porphyrins.
Authors: MAILLARD P. , SCHAEFFER C. , TETREAU C. , LAVALETTE D. , LHOSTE J.‐M. , MOMENTEAU M.
Published: May 2016

The title complexes (I) differ from the number of amino‐acid residues inserted in the handles and from the nature of these residues.
ChemInform Abstract: Characterization of Two Polymorphic Forms of Tolfenamic Acid (I), N‐(2‐Methyl‐3‐chlorophenyl)anthranilic Acid: Their Crystal Structures and Relative Stabilities.
Authors: ANDERSEN K. V. , LARSEN S. , ALHEDE B. , GELTING N. , BUCHARDT O.
Published: May 2016

In the yellow form (stable low‐temp.
ChemInform Abstract: Structure and Conformation of Polynitrodiphenylmethanes and Related Carbanions.
Authors: SIMONNIN M.‐P. , XIE H.‐Q. , TERRIER F. , LELIEVRE J. , FARRELL P. G.
Published: May 2016

Concomitant to a kinetic and thermodynamic study of ionization of nitrodiphenylmethanes (subject of a forthcoming paper), the structural investigation of these compounds (including the parent Ph‐CH2‐Ph) using 1H, 13C NMR, and UV/VIS is described in this paper.
ChemInform Abstract: Electrochemical Differentiation of α‐ and β‐Diastereoisomers of the Steroid Hormone Receptor Marker (3‐(Benzyloxy)‐17β‐hydroxyestra‐1,3,5(10)‐triene)tricarbonylchromium.
Authors: BOND A. M. , JAOUEN G. , MANN T. F. , MOCELLIN E. , TOP S.
Published: May 2016

Both voltammetric studies at conventional and microsized platinum electrodes lead to the conclusion that the one‐electron oxidation of the 18‐electron α‐isomer (I) is thermodynamically easier than the β‐complex (II).
ChemInform Abstract: Trends in Selectivity. Evidence from Rates and Products for Simultaneous Reaction Channels in Solvolyses of Benzoyl Chloride and Substituted Derivatives.
Authors: BENTLEY T. W. , KOO I. S.
Published: May 2016

Rates of solvolyses of benzoyl chlorides (I) are reported for highly aqueous binary mixtures (with acetone, EtOH, and MeOH cosolvents; in part literature data).
ChemInform Abstract: General Method for the Synthesis of 1,3‐ and 1,4‐Dithiacycloalkanes by Homolytic Addition Reaction of Dithiols with Alkynes.
Authors: DEMCHUK D. V. , TROYANSKII E. I. , NIKISHIN G. I.
Published: May 2016

Reaction of the alkynes (I) with the dithiols (II) gives the 1,4‐dithiacycloalkanes (III).
ChemInform Abstract: Highly Selective Aromatic Chlorination. Part 3. Kinetics and Mechanism of Chlorination of Electron‐Rich Aromatic Compounds by N‐Chloroamines in Acidic Solution.
Authors: SMITH J. R. L. , MCKEER L. C. , TAYLOR J. M.
Published: May 2016

The important aspects of the title reaction with a large variety of N‐chloroamines are examined in great detail: a) kinetics (first order in both the aromatic substrate and the chlorinating agent) and competitive kinetics; b) effects of N‐chloroamine and aromatic substrate structure on rates; c) radical intermediates occurring eventually (trapping experiments).
ChemInform Abstract: An ESR Investigation of Radical Cations Formed in Friedel‐Crafts Reactions.
Authors: WANG H. , KISPERT L. D. , SANG H.
Published: May 2016

Friedel‐Crafts reaction of benzene (III), toluene (XIV), and ethylbenzene (X) with alkyl halides leads via Scholl self‐condensation of the primary products to polycyclic aromatics.
ChemInform Abstract: The Cerium(III)‐Mediated Reaction of Trimethylsilylmethyl Magnesium Chloride with Esters and Lactones: The Efficient Synthesis of Some Functionalized Allylsilanes of Use in Annulation Reactions.
Authors: LEE T. V. , CHANNON J. A. , CREGG C. , PORTER J. R. , RODEN F. S. , YEOH H. T.‐L.
Published: May 2016

Allyl silanes are of importance due to their highly regio‐ and stereocontrolled C‐C bond formation, e.g. in annulation reactions.
ChemInform Abstract: Synthesis and Deprotonation of 1‐(p‐Toluenesulfonyl)‐2‐alkenyl Carbamates. Dichotomous Achiral d1 and Chiral d3 Reagents for Carbonyl Addition Directed by Metal Exchange.
Authors: REGGELIN M. , TEBBEN P. , HOPPE D.
Published: May 2016

The allylic carbamates (I) are lithiated and then substituted with tosyl fluoride (IV) to form the tosyl carbamates (V).
ChemInform Abstract: Naphthalenophanes by Twofold Photocyclodimerization Reactions of Distyrylnaphthalenes.
Authors: MEIER H. , PRASS E. , ZERTANI R. , ECKES H.‐L.
Published: May 2016

Regiospecific head‐to‐head cycloaddition in the irradiation of various distyrylnaphthalenes such as (I) leads to naphthalenophanes such as (II).
ChemInform Abstract: Photolysis of Substituted Benzylidineacenaphthenones.
Authors: PARSHAD R. , SHARMA K. S.
Published: May 2016

Irradiation of the title compounds (III), prepared by coupling the acenaphthenone (I) with the aldehydes (II), yields the cyclization products (IV) or (V), depending on the substitution pattern, together with the anhydride (VI).
ChemInform Abstract: Studies on 2‐Azetidinones. Part 1. Preparation and Antimicrobial Activity of p,p′‐Bis(3‐chloro‐4‐aryl‐2‐azetidinon‐1‐ylcarbamoylmethoxy)diphenyl Sulfones.
Authors: VANSDADIA R. N. , RODA K. P. , PAREKH H.
Published: May 2016

The bis(ethoxycarbonylmethoxy)diphenyl sulfone (I) is treated with hydrazine hydrate (II) and subsequently coupled with seventeen aldehydes such as (III) to give hydrazones such as (IV).
ChemInform Abstract: Reactions of 2‐Furfurylidenemalonaldehyde with Aromatic Amines and Meldrum′s Acid.
Authors: SAFAR P. , KOVAC J.
Published: May 2016

The title aldehyde (I) reacts with primary aromatic amines as an organic Lewis acid to give products of type (III) (10 examples).
ChemInform Abstract: Synthesis of 1,3‐Dithiol‐2‐thione Derivatives by Phase Transfer Dithiocarboxylation of CH‐Acidic O‐Alkyl Dithiocarbonates.
Authors: DOELLING W. + , VOGT A. , AUGUSTIN M.
Published: May 2016

In a one‐pot procedure, CH‐acidic dithiocarbonates such as (I) or (IV) react with CS2 (II) under basic conditions followed by S‐alkylation to give novel dithiole‐thiones such as (IV) or (VII).
ChemInform Abstract: Conjugated ′Bis′‐tetrathiafulvalenes: Donors for a New Class of Conducting Radical Cation Salts.
Authors: RAEDER H.‐J. + , SCHERER U. , WOLF P. , MUELLEN K. +
Published: May 2016

The bis(trithiocarbonate) (I), prepared from chloranil by a known procedure, is O‐alkylated to give the dihexoxy compound (III).
ChemInform Abstract: Synthesis of Some New Polycyclic Pyrazolinone Derivatives.
Authors: EL‐HOSSINI M. S. , KHALIL A. M. , EL‐AGAMEY A. A. , EL‐ABLAC F. Z.
Published: May 2016

Treatment of the β‐keto anilides (I) with hydrazine (II) yields the polycyclic pyrazolinones (III) mentioned in the title.
ChemInform Abstract: Preparation and Comparative Studies of Some Substituted 4‐Thiazolidinones and 2‐Azetidinones Linked to 1,3,4‐Thiadiazole.
Authors: CHANGANI V. S. , KALAVADIA A. V. , MANVAR U. V. , JOSHI G. K.
Published: May 2016

The azomethines (III), prepared by coupling the diaminothiadiazole (I) with the ketones (II), react with ketene to give the bisazetidinones (V).
ChemInform Abstract: The Use of Acyl Derivatives of N‐Hydroxy‐2‐thiopyridone in a Simple Synthesis of Pyrrolidines and Tetrahydrofurans.
Authors: CASTAGNINO E. , CORSANO S. , BARTON D. H. R.
Published: May 2016

Irradiation of the N‐(acyloxy)thiopyridones (Ia) and (Ib) gives the 2‐pyridylthiomethyl heterocycles (II) which are reductively desulfurized to yield N‐acetyl‐3‐methylpyrrolidine (IIIa) or 3‐methyltetrahydrofuran (IIIb).
ChemInform Abstract: Synthesis and Lithiation of γ,γ‐Difunctionalized Ketene Dithioacetals. Access to a New Synthetic Equivalent of a β‐Hydroxy‐β‐lithioacrylate. X‐Ray Molecular Structure of 2‐(1,3‐Dithian‐2‐ylidenemethyl)‐1,3‐dithiane.
Authors: DZIADULEWICZ E. , GILES M. , MOSS W. O. , GALLAGHER T. , HARMAN M. , HURSTHOUSE M. B.
Published: May 2016

Whereas the ketene dithioacetals (III) do not generate allylic anions under a variety of conditions, the analogue (VIII) (space group P21/c; Z=4) is readily deprotonated with LDA; the anion formed reacts with electrophiles, e.g. (IX), to give adducts such as (X).
ChemInform Abstract: Synthesis and Biological Activity of Substituted 1,4,5,6‐Tetrahydropyridazin‐4‐ones, 5,6‐Dihydro‐3‐hydroxy‐1H‐pyrazolo(4,3‐c)pyridazines and 2,8‐Dihydro‐1H‐pyrano(2,3‐d)pyridazines.
Authors: PATEL H. V. , FERNANDES P. S.
Published: May 2016

A large variety of title compounds is prepared by a convenient method using hydropyridazinones as the precursors.
ChemInform Abstract: Synthesis of Arylhydrazonotetrazolopyrimidones, Related Thiazolopyrimidones, Pyrazolopyridones, and Pyrimidobenzimidazoles. Part 4.
Authors: METWALLY M. A. , ISMAIEL A.‐K. M. , YOUSIF M. Y. , EID F.
Published: May 2016

The 2‐arylazo‐3‐oxobutyrates (I) react with the amino or imino azoles (II), (IV), and (VI) to give the ring closure products (III), (V), and (VII).
ChemInform Abstract: Synthesis and Biological Activity of Pyrido(3′,2′:4,5)thieno(3,2‐d)pyrimidines.
Authors: DAVE C. G. , SHAH P. R. , SHAH A. B. , DAVE K. C. , PATEL V. S.
Published: May 2016

The aminothienopyridine (I) undergoes ring closure reaction with the isothiocyanates (II) to give the pyrimidines (III).
ChemInform Abstract: Reaction of 3‐Phenyl‐3‐chloro‐2‐oxopropionic Acid Derivatives with o‐Phenylenediamine.
Authors: MAMEDOV V. A. , NURETDINOV I. A. , SIBGATULLINA F. G.
Published: May 2016

o‐Phenylenediamine (I) is coupled with the chlorophenylpyruvic amides (II) or the esters (IV) to give the quinoxalines (III) and (V) respectively.
ChemInform Abstract: Nucleophilic Addition‐Elimination Reactions of 4‐ and 6‐Chloroindoline‐2,3‐diones with 6‐Chloro‐2‐hydrazinobenzothiazole.
Authors: VARMA R. S. , GUPTA P.
Published: May 2016

The condensation reaction of the indoline‐2,3‐diones (I) with the 2‐hydrazinobenzothiazole (II) yields the hydrazones (III).
ChemInform Abstract: Synthesis of Some New Fluorinated Derivatives of 1,3,5‐Triazine as Potential Biologically Active Agents.
Authors: SHAIHLA SHAIHLA , TYAGI E. , MITAL R. L. , PRAKASH L.
Published: May 2016

Reaction of m‐nitroaniline (I) with the trichlorotriazine (II) gives the dichlorotriazine (III) which is further coupled with the trifluoromethylaniline (IV), producing the bis(arylamino)triazine (V).
ChemInform Abstract: Synthesis of Macrocyclic O/S Crown Ethers with Dicyanoethylenedithiolate.
Authors: MAERKL G. + , VYBIRAL R.
Published: May 2016

The known reaction of carbon disulfide (I) with sodium cyanide (II) gives the disodium dicyanoethylenedithiolate (III) which is coupled with the ditosylates or dihalides (IV) to produce low yields of the macrocycles (V) which incorporate two molecules of (IV).
ChemInform Abstract: Boron Compounds. Part 90. (Ligand)Transition Metal π‐Complexes of Organosubstituted 2,5‐Dihydro‐1,2,5‐azasilaboroles ‐ Preparation and Characterization in Solution.
Authors: KOESTER R. + , SEIDEL G. , WRACKMEYER B. , SCHLOSSER D.
Published: May 2016

Reactions of 4,5‐diethyl‐2,5‐dihydro‐1H‐1,2,5‐azasilaboroles, differently substituted in positions 1, 2, and 3, with various metal complexes affording the fragments Cr(CO)4, Mo(CO)4, Fe(CO)3, Co(η5‐C5H5), Ru(CO)3, Rh(η5‐C5H5), Rh(acac), IrCl(CH2=CH2) as well as Ni are investigated.
ChemInform Abstract: Reaction of 1,1‐Dichloro‐1‐nitrosobutane with Dimethylphosphoramidous Dichloride.
Authors: SOKOLOV V. B. , IVANOV A. N. , EPISHINA T. A. , MARTYNOV I. V.
Published: May 2016

The dichloronitrosobutane (I) is coupled with the phosphoramidous dichloride (II) to give the phosphorane (III), together with butyronitrile oxide (IV).
ChemInform Abstract: Oxidation of Bis(trimethylsilyl)phosphoramidous Difluoride.
Authors: LERMONTOV S. A. , SUKHOVA N. V. , MARTYNOV I. V.
Published: May 2016

Reaction of the phosphoramidous difluoride (I) with tert‐butyl hypochlorite gives the phosphorodifluoridimidate (II) and the phosphoramidic difluoride (III).
ChemInform Abstract: The Formation of 2‐Oxopropyl‐2‐oxopropylidenediphenylphosphorane. Crystal and Molecular Structure of Its Lithium Enolate.
Authors: ANGELOVA O. , KIRILOV E. M. G. , KIRILOV M. , PETROV G. , KANETI J. , MACICEK J.
Published: May 2016

Subsequent dehydrobromination in the reaction of bromoacetone (I) and diphenyltrimethylsilylphosphine (II) yields the title phosphorane (III).
ChemInform Abstract: Hydrometalation Reactions: An Improved Hydrozirconation Reagent and the Structure of a (MCp)2ZrCl(alkenyl) Carbonylation Product.
Authors: ERKER G. , SCHLUND R. , KRUEGER C. +
Published: May 2016

The hydridozirconium chloride (II) is synthesized as shown and used as the hydrozirconation reagent.
ChemInform Abstract: Synthesis, Spectroscopy, and Structural Characterization of Five‐Coordinate, Bis(aryldiazenido)technetium Complexes and Their Protonation Reactions. X‐Ray Structure of (TcCl(PPh3)2(NNC6H4Br)2).
Authors: NICHOLSON T. , DE VRIES N. , DAVISON A. , JONES A. G.
Published: May 2016

The complex (IIIa) is characterized by an X‐ray investigation ( P21/n, Z=4).
ChemInform Abstract: Synthesis of CpCo‐Complexed α‐Pyrans via an Intramolecular (2 + 2 + 2)‐Cycloaddition.
Authors: GLEITER R. , SCHEHLMANN V.
Published: May 2016

The cycloalkynone (I) is dimerized in the presence of the cyclopentadienylcobalt complexes (II) to form the complexed fused and bridged pyran derivative (III).
ChemInform Abstract: Spectroscopic and Electrochemical Study of Copper and Zinc Complexes with a N2S2 Ligand Donor Set. Crystal Structure of the Copper(II) Complex Derived from 1,3‐Propylenediamine and 3‐Formyl‐1‐phenyl‐2(1H)‐pyridinethione.
Authors: GULLOTTI M. , CASELLA L. , PINTAR A. , SUARDI E. , ZANELLO P. , MANGANI S.
Published: May 2016

With a view to the central role which plays the couple Cu(II)/Cu(I) in biological electron transfer processes, the copper(I) and zinc(II) analogues of recently reported Cu(II)‐N2S2 systems are described.
ChemInform Abstract: A Barium Dithiocyanate Complex with an Unusual Macrocycle Containing Pendant Arms, the Amine Precursor, and Related Copper(II) Diperchlorate Complexes: Synthesis and Structure.
Authors: TAMBURINI S. , VIGATO P. A. , CASELLATO U. , GRAZIANI R.
Published: May 2016

The crystal structures of the amine ligand (V) ( P21/n, Z=4), the Cu complex (VIII) (P212121, Z=4) and the Ba complex (XI) (Pbcn, Z=4) are determined.
ChemInform Abstract: Clusters Containing Carbene Ligands. A New Route to Alkyl(dialkylamino)carbene Ligands by a Novel 1,1‐Hydrogenation of Ynamine Ligands.
Authors: ADAMS R. D. , CHEN G. , TANNER J. T. , YIN J.
Published: May 2016

The cluster complex (III) (space group P1, Z=2) is prepared according to the scheme.
ChemInform Abstract: Mercaptoquinazoline Dyes. Synthesis of 2‐Mercapto‐3‐(2′,4′‐dichloro‐4‐stilbenyl)‐6‐arylazo‐4‐oxoquinazoline Dyes and Their Application.
Authors: NAIK N. M. , DESAI K. R.
Published: May 2016

The anthranilic acid (I) reacts with the thiourea (II), forming the quinazoline (III) which is coupled with the aldehyde (IV) and subsequently reduced to give the aminoquinoxaline derivative (V).
ChemInform Abstract: Regioselective Anodic Oxidation of N‐Acyl, N‐Alkoxycarbonyl, and N‐(2‐Nitrophenylsulfenyl) Dipeptide Esters.
Authors: PAPADOPOULOS A. , HEYER J. , GINZEL K.‐D. , STECKHAN E.
Published: May 2016

The chloride‐mediated anodic methoxylation of protected dipeptide esters such as (I) or (V) depends on both the nature of the N‐protecting group and the amino acid side chain.
ChemInform Abstract: Synthesis, Molecular Conformation and Biological Activity of 6‐Amino‐5‐azacytidine.
Authors: PISKALA A. , HANNA N. B. , ZAJICEK J. , CIHAK A.
Published: May 2016

In addition to the title compound (IV), the synthesis of the 6‐methoxy‐ and 6‐oxo‐derivatives is described.
ChemInform Abstract: Synthesis of Methylisospatheliachromene, Alloptaeroxylin and Alloptaeroxylin Methyl Ether.
Authors: PRASAD K. J. R. , IYER C. S. R. , IYER P. R.
Published: May 2016

Alternative routes for the synthesis of the title compounds are presented.
ChemInform Abstract: A Comparison of Silicon Wafer Etching by KOH and Acid Solutions.
Authors: DYER L. D. , GRANT G. J. , TIPTON C. M. , STEPHENS A. E.
Published: May 2016

It is demonstrated that KOH etching has many advantages over acid etching.
ChemInform Abstract: Evaluation of Evaporated ZnxPb1‐xS as a Gate Insulator for HgCdTe Metal‐Insulator‐Semiconductor (MIS) Devices.
Authors: ORENT T.
Published: May 2016

Amorphous ZnxPb1‐xS dielectric films with uniform compositions (0‐50 at.% PbS) are deposited by coevaporation of ZnS and PbS.
ChemInform Abstract: The Use of Metalorganics in the Preparation of Semiconductor Materials. Part 8. Feasibility Studies of the Growth of Group III‐Group V Compounds of Boron by MOCVD.
Authors: MANASEVIT H. M. , HEWITT W. B. , NELSON A. J. , MASON A. R.
Published: May 2016

Trimethylborane (TMB) and triethylborane (TEB) in combination with AsH3 or PH3 in a H2 atmosphere are used as sources for the chemical vapor deposition of boron arsenide and boron phosphide films.
ChemInform Abstract: Sinterable β‐Spodumene Glass‐Ceramics.
Authors: KNICKERBOCKER S. , TUZZOLO M. R. , LAWHORNE S.
Published: May 2016

The possibility to sinter β‐spodumene to near‐theoretical density is studied as well as the influence of compositional changes such as variations of the Li2O, Al2O3, and SiO2 contents and additions of other oxides (e.g.
ChemInform Abstract: Structure of Na2MZr(P2O7)2 (M: Ni and Co).
Authors: GALI S. , BYRAPPA K. , GOPALAKRISHNA G. S.
Published: May 2016

The isostructural title compounds, obtained by hydrothermal synthesis in a Morey‐type autoclave, starting from the transition‐metal oxides, H3PO4, and 2.5 M NaOH solution (as mineralizer), crystallize in the triclinic system, space group P1, Z=1.
ChemInform Abstract: Structure of CsAlTiO4 ‐ A Compound with TiO4 Tetrahedra.
Authors: GATEHOUSE B. M.
Published: May 2016

Single crystals of the title compound, which appears to be only the second Ti(IV) compound in which TiO4 tetrahedra are present, are selected from a preparation in which relevant mole ratios of CsNO3, TiO2, and Al2O3 are heated for 24 h at 1200 K followed by 48 h at 1400 K. The compound crystallizes in the orthorhombic system, space group Imma, Z=4.
ChemInform Abstract: Systematic Design of Chemical Oscillators. Part 59. Minimal Permanganate Oscillator: The Guyard Reaction in a CSTR.
Authors: ORBAN M. , EPSTEIN I. R.
Published: May 2016

The reactions of the KMnO4/MnSO4/KH2PO4/NaOH system are studied at 25 °C in a CSTR equipped with Pt and glass electrodes.
ChemInform Abstract: Synthesis of Niobium Boride Powder by Solid State Reaction Between Niobium and Amorphous Boron.
Authors: MATSUDAIRA T. , ITOH H. , NAKA S. , HAMAMOTO H.
Published: May 2016

The preparation of various niobium boride powders by solid state reaction of the elements is studied in the temp. range 600‐1800 °C and the products are characterized by XRD, SEM, and electron probe microanalysis.
ChemInform Abstract: Counterion‐Depending Structural Differences of Silver Polyselenides. Structure of New Complex Anions (Ag(Se4))4‐ 4, (Ag(Se5))n‐ n, and (Ag4(Se4)3)2‐.
Authors: KANATZIDIS M. G. , HUANG S.‐P.
Published: May 2016

Salts with anions mentioned in the title are prepared in a manner described below.
ChemInform Abstract: Stable Simple Enols. Part 23. Solid‐State Structures of 1‐Alkyl‐2,2‐dimesitylethenols. Application of the Principle of Structural Correlation to Ring‐Flip Processes in 1,1‐Diarylvinyl Systems.
Authors: KAFTORY M. , NUGIEL D. A. , BIALI S. E. , RAPPOPORT Z.
Published: May 2016

Enols (I) and ethene (III) all have space group P21/c with Z=16, 8, 4, and 4, resp., whereas enols (II) have P1 with Z=2 both.
ChemInform Abstract: Structure of Methyl 5‐Phenyl‐2‐propionyl‐3‐pyrrolecarboxylate.
Authors: NETHAJI M. , PATTABHI V. , THAILAMBAL V. G.
Published: May 2016

The title compound (I) (space group P21/n with Z=4) is an intermediate in the synthesis of bispyrroles which are potential anticancer agents.
ChemInform Abstract: Kinetic and Equilibrium Study of the Reaction of (meso‐Tetrakis(p‐sulfonatophenyl)porphinato)diaquochromate(III) with Pyridine in Aqueous Solution.
Authors: ASHLEY K. R. , TRENT I.
Published: May 2016

In the title reaction, studied at 15, 25, and 35 °C from pH 5.0 to 1.0 spectrophotometrically, all the species (Ia)‐(If) are observed.
ChemInform Abstract: Photochemical Transformations. Part 48. The Nonconcertedness of Nucleofuge Loss and anti‐Aryl Migration in Photochemical Wagner‐Meerwein Rearrangements.
Authors: CRISTOL S. J. , ALI M. B. , SANKAR I. V.
Published: May 2016

Whereas thermal ground‐state solvolysis of the methanesulfonates from the diastereomeric alcohols (III) and (IV) (configuration assignments uncertain) proceeds with complete retention as is shown for (VI), excited‐state photosolvolysis leads to diastereomeric scrambling accompanied by hydride migration to yield (IX).
ChemInform Abstract: Tertiary Hydroxylation Using Fluorine: Activation of the C‐H Bond.
Authors: ROZEN S. , BRAND M. , KOL M.
Published: May 2016

When fluorine is passed through wet MeCN at 0 °C, an oxidizing solution is formed, which in the absence of a double bond attacks tertiary C‐H bonds possessing the highest p‐orbital contribution susceptible to electrophilic attack.
ChemInform Abstract: A New Approach to Alkylthioamide Synthesis Using Cobalt‐Containing Complex Catalysts.
Authors: DZHEMILEV U. M. , BAIBULATOVA N. Z. , KUNAKOVA R. V. , TKACHENKO T. K. , TOLSTIKOV G. A.
Published: May 2016

Cocatalyzed reaction of the alkynes (I), (IV), or (VI) with dimethylformamide (II) in the presence of elemental sulfur gives predominantly the thioamides (III), (V), or (VII).
ChemInform Abstract: Photochemical Routes from Arenes to Inositol Intermediates: The Photooxidation of Substituted cis‐Cyclohexa‐3,5‐diene‐1,2‐diols.
Authors: CARLESS H. A. J. , BILLINGE J. R. , OAK O. Z.
Published: May 2016

Photooxygenation of the dihydroxycyclohexadiene derivatives (I), (XIII), or (XVIII) gives the endoperoxides (II) and (III), (XIV) and (XV) or (XIX).
ChemInform Abstract: Regiospecific Synthesis of Tertiary Amines Containing a Bis‐Unsaturated Secondary Group.
Authors: MESNARD D. , MIGINIAC L.
Published: May 2016

Reaction of the dimethyl acetal (I) or the chlorinated iminium salt (VI) with the allylic zinc bromide (II) and (IV) leads to the formation of the 1,6‐heptadien‐4‐ylamines (III) and (V).
ChemInform Abstract: Synthesis of Substituted Vinyl Sulfides by Reaction of (1‐(Phenylthio)cyclopropyl)carbinyl Halides and Organocuprates.
Authors: KWON T. W. , SMITH M. B.
Published: May 2016

Coupling of phenylthiocyclopropane (I) with the aldehydes (II) yields the cyclopropylcarbinols (III).
ChemInform Abstract: Free Radical Chlorination and One‐Electron Oxidation of Arylcyclopropanes. Designer Probes for Cytochrome P‐450 Hydroxylation Mechanisms.
Authors: RILEY P. , HANZLIK R. P.
Published: May 2016

Phenylcyclopropane (Ia) reacts with sodium hypochlorite to give the chlorination products (II) ‐ (VI) depending on the pH.
ChemInform Abstract: trans‐1,2‐Functionalization of Cycloalkenes Using Selenium Intermediates.
Authors: CECCHERELLI P. , CURINI M. , MARCOTULLIO M. C. , ROSATI O.
Published: May 2016

(+)‐p‐Menthene (I) reacts with equimolar amounts of phenylselenenyl chloride (II) in aqueous acetonitrile to give stereoselectively the 2‐(phenylselenenyl)cyclohexanol (III) which is treated with further (II), yielding the chlorohydrin (IV).
ChemInform Abstract: A New Pyrone Strategy for the Synthesis of 3‐Acyltetramic Acids.
Authors: JONES R. C. F. , PATIENCE J. M.
Published: May 2016

The hydroxypyrone (III), prepared by cyclization of the acetoacetate (I) with malonyl dichloride (II), is O‐methylated and then brominated to give the bromomethyl(methoxy)pyrone (VI).
ChemInform Abstract: Synthesis of Indoles and L‐Tryptophans Specifically 2H‐ or 13C‐Labeled in the Six‐Membered Ring.
Authors: VAN DEN BERG E. M. M. , VAN LIEMT W. B. S. , HEEMSKERK B. , LUGTENBURG J.
Published: May 2016

To study the role of Trp residues in bacteriorhodopsin, tryptophan specifically mono‐2H‐ and 13C‐enriched in the indole ring is needed.
ChemInform Abstract: A Completely Stereoselective Intramolecular Diels‐Alder Reaction in the Substituted Cyclohexanol Series.
Authors: ALEXAKIS A. , JACHIET D. , TOUPET L.
Published: May 2016

Esterification of the cyclohexanols (I) and (V) with the compounds (II) and (VI), resp., followed by the title reaction leads to the products (IVa) (space group P21/c with Z=4), (IVb) and (VII) (space group P21/c with Z=4).
ChemInform Abstract: Methylpyranochromones and Methylbenzodipyranones: New Potential Photoreagents Towards DNA.
Authors: PASTORINI G. , RODIGHIERO P. , MANZINI P. , CONCONI M. T. , CHILIN A. , GUIOTTO A.
Published: May 2016

A number of methylpyranochromones (III) and methylbenzodipyranones (VIII) with an angular angelicin‐like structure are synthesized with the aim of obtaining new monofunctional photoreagents towards DNA.
ChemInform Abstract: Synthesis of the Chiral (8S)‐7‐Aza‐1,3E,9‐decatriene System from Natural α‐Amino Acids and Its Intramolecular Diels‐Alder Reaction Directed Toward Chiral trans‐Hydroisoquinolones.
Authors: MORIWAKE T. , HAMANO S. , SAITO S. , TORII S. , KASHINO S.
Published: May 2016

Starting with the derivative (I) of L‐alanine, the triene (XIII) is prepared as shown in the reaction scheme.
ChemInform Abstract: Synthesis and Biological Activity of (6‐Phenoxy‐1‐pyrimidinylthio)acetic Acid Ethyl Ester.
Authors: VAINILAVICHYUS P. I. , ROCHKA V.‐S. M. , SYADYARYAVICHYUTE V. YU. , DENENE A. A. , BEGANSKENE A. B. , ABRAMOVA G. L.
Published: May 2016

Consecutive treatment of the dichloropyrimidine (I) with the phenols (II) and the mercaptoacetate (IV) gives the title compounds (V).
ChemInform Abstract: Structure Determination of N6‐, 9‐ and 7‐Acyladenines by 1H and 13C NMR Spectroscopy of Solids and in Solution.
Authors: RIED W. , WOITHE H. , MUELLER A. +
Published: May 2016

Adenine (I) reacts with anhydrides and acid chlorides such as (II) to yield acyladenine isomers such as (III)‐(V) the structures of which can be determined by NMR.
ChemInform Abstract: (1‐Alkoxyethyl)diphenylphosphine Oxides. Part 1. Syntheses and Structural Analyses of Phenylethoxy, Methoxy and Isopentyloxy Derivatives.
Authors: UGLIENGO P. , AHMED J. , VITERBO D. , CALLERI M. , CERUTI M.
Published: May 2016

The monomeric (alkoxyethyl)diphenylphosphine oxides (VI), key intermediates in the stereospecific syntheses of vinyl ethers, are synthesized according to the scheme and characterized by 1H and 13C NMR, IR, and mass spectra.
ChemInform Abstract: Sodium Arenetellurolate Catalyzed Selective Conversion of Nitroaromatics to Aromatic Azoxy or Azo Compounds and Its Application for Facile Preparation of 3,3′‐ and 4,4′‐Bis(β‐(aryltelluro)vinyl)azobenzenes from (3‐ and 4‐Nitrophenyl)acetylenes.
Authors: OHE K. , UEMURA S. , SUGITA N. , MASUDA H. , TAGA T.
Published: May 2016

Treatment of the nitroarenes (I) with sodium borohydride in the presence of catalytic amounts of diphenyl ditelluride yields the aromatic azo compounds (II), together with the corresponding azoxy derivatives (III).
ChemInform Abstract: Synthesis, Characterization and Electrochemical Investigation of Cobalt(III) Complexes of 3,8‐Dimethyl‐5,6‐benzo‐4,7‐diazadeca‐3,7‐diene‐2,9‐dione Dioxime with Sulfur Ligands in the Axial Sites.
Authors: ALEXANDER V.
Published: May 2016

The title complexes (III) (at different temp. for each complex), (V) and (VII) are prepared in order to study the lability of the Co‐S bond and the reactivity of the lower valent Co ion.
ChemInform Abstract: Pseudo‐Tetrahedral Coordination Compounds of Cobalt, Zinc, Nickel and Iron Halides with 3(5)‐Methyl‐5(3)‐phenylpyrazole. The Crystal and Molecular Structures of Dichlorobis(3‐methyl‐5‐phenylpyrazole)cobalt(II) and Dibromobis(3‐methyl‐5‐phenylpyrazole)zinc(II).
Authors: VERWEIJ P. D. , RIETMEIJER F. J. , DE GRAAFF R. A. G. , ERDONMEZ A. , REEDIJK J.
Published: May 2016

The title complexes (I) are prepared in > 50% yield by 1:2 molar reaction of MX2 with the title ligand in warm ethanol.
ChemInform Abstract: η2‐1,3‐Dimethyluracil Complexes of Pentaammineruthenium(II) and Pentaammineosmium(II).
Authors: ZHANG S. , SHEPHERD R. E.
Published: May 2016

The title complexes (III) are prepared via Zn/Hg reduction of the pentaamminemetal(III) complexes (II) in the presence of excess dimethyluracil (I) and characterized by 1H and 13C NMR spectroscopy, cyclic voltammetry and differential pulse polarography.
ChemInform Abstract: Coordination Compounds of 6‐Thioxo‐1,2,3,6‐tetrahydro‐1,2,4‐triazine‐5‐thiolates.
Authors: KIBBEL H. U. , DANNENBERGER D. , KALIES W.
Published: May 2016

The 1:2 molar reaction of corresponding metal(II) acetates or K2PtCl4 with corresponding 1‐methyl‐perhydro‐1,2,4‐triazine‐5,6‐dithiones in acetone or DMF results in the formation of the bis(ligand) complexes (I) (yields 55‐90%).
ChemInform Abstract: Synthesis of β‐Amino α‐Hydroxy Acids via Aldol Condensation of a Chiral Glycolate Enolate. Synthesis of (‐)‐Bestatin.
Authors: PEARSON W. H. , HINES J. V.
Published: May 2016

Aldol condensation of the optically active spirocyclic 1,3‐dioxolanone (I) with phenylacetaldehyde (II) yields a mixture of the aldols (III).
ChemInform Abstract: Studies on C‐Glycosyl Compounds. Part 14. Stereoselective and Mild Method for the Synthesis of C‐D‐Glucosylarenes in High Yield.
Authors: CAI M.‐S. , QIU D.‐X.
Published: May 2016

The tetrabenzylglucosyl trifluoroacetate (I) reacts with the alkoxybenzenes (II) in the presence of Lewis acid catalysts to form the glucosylbenzenes (III).
ChemInform Abstract: Synthetic Studies Towards (‐)‐Carba‐3′‐deoxy‐3′‐fluorothymidine.
Authors: BERES J. , SAGI GY. , BAITZ‐GACS E. , TOEMOESKOEZI I. + , GRUBER L. , OETVOES L. +
Published: May 2016

The stereospecific synthesis of the title compound (III), a carba analogue of the anti‐HIV agent 3'‐deoxy‐3'‐fluorothymidine, starts from the protected alcohol (I); under the conditions shown in the scheme, extensive dehydration leads to (+)‐(V); formation of the 4'‐fluoro analogue (IV) is observed as well.
ChemInform Abstract: Degradation of High‐Temperature Superconductors by Chemical Effects.
Authors: NEFEDOV V. I. , SOKOLOV A. N.
Published: May 2016

Review: A survey is given of the publications dealing with the degradation of HT‐superconductors caused by different media and various agents.
ChemInform Abstract: Structures, Energetics, and Vibrational Frequencies of the Silicon and Germanium Dichlorides and Dibromides and Their Dimers.
Authors: COFFIN J. M. , HAMILTON T. P. , PULAY P. , HARGITTAI I.
Published: May 2016

Ab initio Hartree‐Fock calculations, performed to determine the geometries and energies of the ground singlet (1A1) and the first excited triplet (3B1) states of SiCl2, SiBr2, GeCl2, and GeBr2 and of the ground states of their dimers, show that the triplet state is not energetically accessible at the experimental temp. (600 °C) and therefore is not a possible model for the additional component in the electron diffraction radial distribution of GeBr2.
ChemInform Abstract: Crystal Structure of Calcium Hydrogen Sulfate Dihydrogen Sulfate. A Novel Structural Type of Hydrogen Sulfates Combined by Sulfuric Acid.
Authors: KEMNITZ E. , HASS D. , WORZALA H. , TROJANOV S. I. , RYBAKOV V. B.
Published: May 2016

Single crystals of stoichiometric CaSO4·3 H2SO4 are obtained by cooling a hot, saturated solution of CaSO4 in H2SO4.
ChemInform Abstract: 27Al MAS NMR Studies on the Thermolysis of the Hexaaqua Aluminum Chloride (Al(H2O)6)Cl3.
Authors: BLUMENTHAL G. , WEGNER G. , MUELLER D. + , SAMOSON A. , KRANZ G.
Published: May 2016

Treatment of (Al(H2O)6)Cl3 at 160 °C (dry air) causes a new 27Al NMR peak at 32 ppm in addition to the peak of octahedral Al units.
ChemInform Abstract: Thermolysis of Potassium and Ammonium Pentafluorometallate Hydrates. An in situ‐EPR Study
Authors: LUECK R. + , STOESSER R. + , BENTRUP U.
Published: May 2016

is performed on Fe3+ ions in K2AlF5·H2O, (NH4)2(AlF5(H2O)), and (NH4)2(FeF5(H2O)) in the temp. range 25‐230 °C. It is found that the Fe3+ ions in these compounds are located at Al3+ sites with rhombic and axial symmetry.
ChemInform Abstract: Photoredox Chemistry of Chloro Complexes of Antimony(3+) and (5+).
Authors: VOGLER A. , PAUKNER A.
Published: May 2016

The (SbCl6)3‐ anion (I) (ground state 1S0) if dissolved in deaerated CHCl3, shows phosphorescence (λmax = 520 nm, quantum yield 2.4·10‐3, lifetime ≤ 50 ns), originating from the lowest sp excited state (3P1).
ChemInform Abstract: Synthesis and Properties of Pentavalent Antimony and Bismuth Fluorides.
Authors: POPOV A. I. , SHARABARIN A. V. , SUKHOVERKHOV V. F. , CHUMAEVSKII N. A.
Published: May 2016

Some properties of Sb(V) and Bi(V) fluorides are studied with emphasis on the MF2‐Sb(Bi)F5 (M: Mg, Ca, Sr, Ba) and XF3‐BiF5 (X: Cl, Br) systems.