bluuebunny/crossref_metadata_2025 huggingface dataset:
ChemInform Abstract: Chemistry of the Heterocyclic Pseudobasic Amino Alcohols. Part 38. Ring‐Chain Tautomerism of Pyrimido(6,1‐a)isoquinolines.
Authors: KORBONITS D. , HORVATH G. , KISS P. , SIMON K. , KOLONITS P.
Published: May 2016

According to X‐ray diffraction, (Ia) exists as this tautomer (space group P1 with Z=2) in the solid state while in DMSO solution tautomer (IIa) is present (1H NMR).
ChemInform Abstract: Asymmetric Synthesis of Alpha Substituted Benzyl Alcohols via the Stereoselective Addition of Nucleophiles to Homochiral Tricarbonyl(η6‐o‐trialkylsilylbenzaldehyde)chromium(0) Complexes.
Authors: DAVIES S. G. , GOODFELLOW C. L.
Published: May 2016

The racemic title complexes (I) and (VII) are prepared and transformed into their optical active forms by resolution via L‐valinol derived imines.
ChemInform Abstract: Diastereoselective Aldol Reactions of Cyclohexanone Lithium Enolate.
Authors: MAJEWSKI M. , GLEAVE D. M.
Published: May 2016

The lithium enolate of cyclohexanone (I) reacts with the aromatic aldehydes (II) in tetrahydrofuran to give the aldols (III) and (IV) with the predominance of the threo compounds (III).
ChemInform Abstract: Intramolecular Cyclization Reactions of Pyrimidinium Cations.
Authors: FRISSEN A. E. , GEURTSEN G. , MARCELIS A. T. M. , VAN DER PLAS H. C.
Published: May 2016

N‐Alkylpyrimidinium cations formed from the neutral species (I) and (V) according to A) are found to undergo intramolecular inverse demand Diels‐Alder reactions under considerably milder conditions than (I) and (V).
ChemInform Abstract: Allene Synthesis from 2‐Alkyn‐1‐ols.
Authors: MYERS A. G. , FINNEY N. S. , KUO E. Y.
Published: May 2016

The activated esters which are formed by reaction of the alkynols (I) with (II) are substituted to give the hydrazines (IV).
ChemInform Abstract: Rearrangements of Cyclobutenones. Conversion of Selected 4‐Allylcyclobutenones to Bicyclo(3.2.0)heptenones.
Authors: XU S. L. , MOORE H. W.
Published: May 2016

Reaction of the cyclobutenediones (I) with allylmagnesium bromide (II) and subsequent methylation produces the cyclobutenone (V).
ChemInform Abstract: ESR Studies on Nitrogen‐Centered Free Radicals. Part 34. Addition of a Sulfonamidyl Radical to Unsaturated Aromatic and Aliphatic Hydrocarbons.
Authors: MIURA Y. , OHNISHI T. , KINOSHITA M. , KINOSHITA T.
Published: May 2016

The reaction of the title radical (II), generated by thermal dissociation of (I), with the unsaturated aromatic hydrocarbons (IV), (VIII), styrene and acenaphthylene, as well as with the unsaturated aliphatic compounds (XI), cyclohexene and 1‐butene are studied and compared with analogous reactions of the more stabilized radical (III) described previously.
ChemInform Abstract: Hydrogen Transfer Reactions. Part 14. The Dehydrogenation of 1,4‐Dihydroarenes by Manganese Oxidants.
Authors: RADTKE R. , HEESING A.
Published: May 2016

The mechanism of dehydrogenation is examined for substrates (I) and (III) with MnO2 as the oxidizing agent and for substrate (I) with KMnO4 (crown‐complexed) by the use of selectively deuterated substrates (kinetics, kinetic isotope effects).
ChemInform Abstract: Regioselective Conjugate Reduction and Reductive Silylation of α,β‐Unsaturated Aldehydes Using ((Ph3P)CuH)6.
Authors: BRESTENSKY D. M. , STRYKER J. M.
Published: May 2016

The α,β‐unsaturated aldehydes (Ia) and (Ib) are reduced with the stable copper(I) hydride cluster ((Ph3P)CuH)6 in the presence of trimethylsilyl chloride to give the corresponding enol silyl ethers.
ChemInform Abstract: Trifluoroamine Oxide: Reactions with Phosphorus Compounds and Selected Elements.
Authors: GUPTA O. D. , KIRCHMEIER R. L. , SHREEVE J. M.
Published: May 2016

The effectiveness of trifluoroamine oxide (III) as a fluorination agent is examined and compared to that of COF2 and SOF2.
ChemInform Abstract: The Combination of Hydrogen Fluoride Salt and Aluminum Fluoride: An Efficient Solid Reagent for Epoxide Opening to Give Fluorohydrins.
Authors: ICHIHARA J. , HANAFUSA T.
Published: May 2016

Treatment of the epoxides (I) and (III) with alkali metal hydrofluorides and aluminum trifluoride results in hydrofluorination, producing the fluoro alcohols (II) or (IV) and (V).
ChemInform Abstract: Aromatic Sulfonation. Part 111. Reactions of a Series of Methyl Ethers of the Trihydroxybenzenes and Three Dimethoxyphenyl Methanesulfonates with Sulfur Trioxide. The Effect of Initial Sulfation on the Sulfonation Product Distribution.
Authors: CERFONTAIN H. , ANSINK H. R. W. , COENJAARTS N. J. , DE GRAAF E. J. , KOEBERG‐TELDER A.
Published: May 2016

The reactions of a series of mono‐, di‐, and trimethyl ethers of the three trihydroxybenzenes, for example (I), with SO3 (II) are studied in order to determine the effect of the third hydroxy/methoxy group upon the substitution pattern in comparison with the results of earlier studies with phenolic‐type compounds.
ChemInform Abstract: Hindered Organoboron Groups in Organic Synthesis. Part 14. Stereoselective Synthesis of Alkenes by the Boron Wittig Reaction Using Aliphatic Aldehydes.
Authors: PELTER A. , SMITH K. , ELGENDY S. , ROWLANDS M.
Published: May 2016

The α‐lithiated diaryloctylborane (I) is coupled with the aliphatic aldehydes (II) and then treated with protic acids to form the alkenes (III).
ChemInform Abstract: Sonication‐Induced Halogenative Decarboxylation of Thiohydroxamic Esters.
Authors: DAUBEN W. G. , BRIDON D. P. , KOWALCZYK B. A.
Published: May 2016

The carboxylic acids (I) are converted to the acid chlorides and then coupled with the N‐hydroxythiopyridone (II) to produce the N‐acyloxy derivatives (III).
ChemInform Abstract: Hydroalumination and Related Reactions of Phenyl 1‐(Trimethylsilyl)propadienyl Sulfide Followed by Quenching with Carbonyl Compounds.
Authors: TANAKA J. , KANEMASA S. , TSUGE O.
Published: May 2016

Following a previous study on the reactivity of 1‐silylethenyl sulfides, the propadienyl sulfide (I) is subjected to hydroalumination to give organoaluminum intermediates such as (III).
ChemInform Abstract: Vinylic Organoboranes. Part 15. Mercuration of 2‐Alkenyl‐1,3,2‐benzodioxaboroles and Boronic Acids. A Convenient Stereospecific Procedure for the Conversion of Alkynes into E‐1‐Halo‐1‐alkenes via Mercuric Salts.
Authors: BROWN H. C. , LAROCK R. C. , GUPTA S. K. , RAJAGOPALAN S. , BHAT N. G.
Published: May 2016

The alkenylboronic acids (II), prepared from the alkynes (I) by a known method, are converted into the mercuric salts (IV) and subsequently treated with halogens to produce the corresponding 1‐haloalkenes (V) and (VI).
ChemInform Abstract: Synthesis of 2‐Nitro‐2‐aza‐1‐propanol Ethers.
Authors: GAREEV G. A. , KIRILLOVA L. P. , CHERKASHINA N. A. , SHUL'GINA V. M. , KOZLOVA L. M. , VERESHCHAGIN L. I.
Published: May 2016

In the presence of catalytic amounts of conc.
ChemInform Abstract: Low Temperature Ketene Preparations Using Nitrosyltetracarbonylchromium(II) Anion.
Authors: MASTERS A. P. , SORENSEN T. S.
Published: May 2016

The ketenes (III) are generated by low temperature reaction of the nitrosyltetracarbonylchromium complex (I) with the α‐bromo acyl chlorides (II).
ChemInform Abstract: Stoichiometric Dimerization of Methyl Acrylate Mediated by Pd(acac)2·HBF4 Systems and Its Relevance to the Mechanism of Catalytic Dimerization of Acrylates (Hacac = MeCOCH2COMe).
Authors: GUIBERT I. , NEIBECKER D. , TKATCHENKO I.
Published: May 2016

Methyl acrylate (IV) is dimerized in the presence of the Pd catalyst (III), forming a mixture of the unsaturated diesters (V) ‐ (VII).
ChemInform Abstract: Bis(trifluoromethyl)sulfene, (CF3)2C=SO2: Its Synthesis and Isolation as Amine Adduct.
Authors: HARTWIG U. , RALL K. , SUNDERMEYER W.
Published: May 2016

Starting from (I), some routes are examined to prepare the title compound, but all are in vain.
ChemInform Abstract: One‐Pot Synthesis of Substituted Tropones from 7,7‐Dihalo‐2,3‐(or 3,4‐)epoxybicyclo(4.1.0)heptane Derivatives.
Authors: KATO M. , YAMAMOTO S. , NOMURA S. , MIWA T.
Published: May 2016

The following results emerge from a study on the scope and limitations of the title reaction: 1) The epoxide moiety of the substrate must have at least one substituent (cf.
ChemInform Abstract: The Reaction of Methyl Pyruvate and Seven‐Membered Conjugated Compounds Under Basic Condition.
Authors: SUGIYAMA S. , OHKAWA A. , FUJIWARA M. , HAYASHI H.
Published: May 2016

With a view to obtaining products with potential pharmacological activity the title reaction is carried out.
ChemInform Abstract: Formylation of Aryl Chlorides Catalyzed by a Palladium Complex.
Authors: BEN‐DAVID Y. , PORTNOY M. , MILSTEIN D.
Published: May 2016

Treatment of the aromatic chlorides (I) with carbon monoxide (II) and sodium formate in the presence of a Pd(0) phosphine complex results in formylation to give the aromatic aldehydes (III), together with the dechlorinated arenes (IV).
ChemInform Abstract: Synthesis of peri‐Hydroxynaphthaldehydes.
Authors: TREGUB N. G. , KNYAZEV A. P. , MEZHERITSKII V. V.
Published: May 2016

The title compounds (I), (III), (VI) and (VII) are prepared by a novel procedure in improved yields.
ChemInform Abstract: Studies on the Synthesis of Antiulcer Agents. Part 7. Synthesis and Antiulcer Activity of Dihydrobenzofuranone Derivatives.
Authors: KITAZAWA M. , AKAHANE M. , NAKANO Y. , HAYAKAWA K. , SATO K. , KOBAYASHI M.
Published: May 2016

The benzofuranylacrylic acid morpholides (V) and (VIII) are prepared via ring closure of the anisyl bromide (I) with bromoacetyl bromide (II) and coupling of the related benzofuranyl bromides (III) or (VII) with acryloyl morpholide (IV).
ChemInform Abstract: Design of Poly(thiophene)‐Containing Oxyalkyl Substituents.
Authors: LEMAIRE M. , GARREAU R. , RONCALI J. , DELABOUGLISE D. , YOUSSOUFI H. K. , GARNIER F.
Published: May 2016

Oxyalkyl‐substituted thiophenes such as (III), (VI), and (XI) are prepared by reaction of 3‐(bromomethyl)thiophene (I) with the alkoxides (II) or by coupling the sodium salts of the ω‐hydroxyalkylthiophenes (IV) and (IX) with the alkyl halides (V) or (X).
ChemInform Abstract: Synthesis of N‐Substituted 1‐Aminothiophthalylium Salts and Their Reactions with Nucleophilic Reagents.
Authors: OPARIN D. A.
Published: May 2016

The electrophilic character of the hitherto unknown title compounds (V) is investigated and demonstrated by the reactions with sodium borohydride and with ethyl cyanoacetate.
ChemInform Abstract: Diastereocontrolled Nickel(0)‐ and Palladium(0)‐Catalyzed “Metallo‐Ene‐Type” Cyclizations/Carbonylations.
Authors: OPPOLZER W. , KELLER T. H. , BEDOYA‐ZURITA M. , STONE C.
Published: May 2016

The 1,6‐(aza)dienes (I) and (IX) undergo carbonylation and methoxylation in the presence of palladium or nickel catalysts to produce the cyclic (IV) or (V) and bicyclic esters (VI) and (VII).
ChemInform Abstract: 2,2′‐(2,5‐Dihydrothiophene‐2,5‐diylidene)bis(1,3‐dithiole) Derivatives: New Extended One‐Electron Donors and Their Electroconductive Complexes.
Authors: TAKAHASHI K. , NIHIRA T.
Published: May 2016

The thiophenedithiocarboxylate (IV) is coupled with the α‐halo ketones (V) to form the bis(dithiocarboxylates) (VI) which are cyclized and dehydrated, yielding the bisdithiolium salts (VIII).
ChemInform Abstract: Synthesis and Chemical Transformations of 5‐Hydroxy‐4‐oxo‐3‐arylpyrrolidino(1,2‐b)pyrazoles.
Authors: ZVONOK A. M. , KUZ'MENOK N. M. , STANISHEVSKII L. S.
Published: May 2016

Subsequent treatment of the pyrazolinyl oxiranyl ketones (I) with NBS and triethylamine gives the pyrrolopyrazolones (IIa) ‐ (IIc).
ChemInform Abstract: Some Reactions and Rearrangements of Isoxazol‐3‐carbonyl Azides and Hydrazides.
Authors: SRIDEVI G. , RAO P. J. , REDDY K. K.
Published: May 2016

An attempt to prepare ureas such as (I) from the azide (IIa) and benzamide fails.
ChemInform Abstract: An Easy General Synthesis of 2‐(N,N‐Dialkylamino)thiazol‐5‐yl Aldehydes and Ketones.
Authors: SAWHNEY I. , WILSON J. R. H.
Published: May 2016

The title compounds (III) and (V) are of interest as intermediates for plant protection agents.
ChemInform Abstract: Efficient Preparation of Ketones from N‐(Ethoxymethylene)aniline and Organometallic Reagents.
Authors: STREKOWSKI L. , WYDRA R. L. , CEGLA M. T. , CZARNY A. , PATTERSON S.
Published: May 2016

The formimidic acid ester (I) reacts with lithio(het)arenes such as (II) to give the anilines (III).
ChemInform Abstract: Synthesis by Solid‐Liquid Phase‐Transfer Catalysis of a Tribenzyl Derivative of 3‐Amino‐1H‐1,2,4‐triazole. NMR and X‐Ray Diffraction Structure Elucidation.
Authors: PIEDALLU M.‐A. , MERIENNE C. , NEUMAN A. , PRANGE T.
Published: May 2016

Phase‐transfer reaction of the aminotriazole (I) with benzyl chloride (II) and KOH in the absence of a solvent yields the tribenzylated aminotriazole (III), together with a small amount of the ring cleaved tetrabenzyl derivative (IV).
ChemInform Abstract: Recyclization of Enamino Nitriles of 1,3‐Dithiacyclohexenes. A Novel Route to the Stereoselective Synthesis of Substituted 3,4‐trans‐1,2,3,4‐Tetrahydro‐6‐pyridinethiolates.
Authors: SHESTOPALOV A. M. , SHARANIN YU. A. , LITVINOV V. P. , PROMONENKOV V. K.
Published: May 2016

The aminodithiincarbonitriles (II) are coupled with the pyridinium salt (Ia) to give the pyridiniopyridinethiolates (IIIa) and (IIIb).
ChemInform Abstract: Reaction of Nitrosyl Chloride with β‐Carbolines: Some Unusual Products.
Authors: SALVI N. A. , HUSAIN S. , CHOUGHULEY A. S. U.
Published: May 2016

The reaction of (I) with nitrosyl chloride is undertaken in connection with an investigation of mutagenic substances formed by nitrosation of carbolines.
ChemInform Abstract: Benzophenanthridines. Part 12. A Study of the Rodionov‐Suvorov Scheme. Synthesis of the Diethyl Ester of 6‐Methyl‐2,3,8,9‐tetramethoxy‐11,12‐dihydrobenzo(c)phenanthridine‐11,11‐dicarboxylic Acid.
Authors: DAO HUNG CUONG DAO HUNG CUONG , SLADKOV V. I. , SUVOROV N. N.
Published: May 2016

The title compound (V) is prepared starting from the known and well accessible ACD synthon (I).
ChemInform Abstract: The Chemistry of Vicinal Tricarbonyls. Preparation and Reactions of Acetylenic Tricarbonyls.
Authors: WASSERMAN H. H. , FRECHETTE R. , OIDA T. , VAN DUZER J. H.
Published: May 2016

The acetylenic α,β‐diketo esters (VI) are prepared by successive reaction of the esters (I) with the lithium enolates (II), the DMF acetal (IV), and ozone.
ChemInform Abstract: α′‐Silylated Tertiary Benzamides as Dual ortho‐ and α′‐Carbanion Synthons. Carbodesilylative Routes to Isoquinoline and Dibenzoquinolizidine Derivatives.
Authors: CUEVAS J.‐C. , SNIECKUS V.
Published: May 2016

The N‐(silylmethyl)benzamides (I) are ortho‐lithiated and then formylated to yield the aldehydes (III).
ChemInform Abstract: 2,2‐Dimethyl‐5‐(5‐R‐2‐furfurylidene)‐1,3‐dioxane‐4,6‐diones. Part 4. Synthesis, Structure, and Properties of Thiophene Analogues.
Authors: KRAPIVIN G. D. , KUL'NEVICH V. G. , VAL'TER N. I.
Published: May 2016

The thiophenealdehydes (I) react with Meldrum's acid (II) to give the thienylmethylene compounds (III) which are reduced with sodium boranate, forming the thenyl derivatives (IV).
ChemInform Abstract: The Synthesis and Chlorination of Some Pyrimidin‐4‐ols Having 5‐Nitrogen Functionality.
Authors: HARNDEN M. R. , HURST D. T.
Published: May 2016

The synthesis and chlorination of a variety of the title compounds such as (I) or (III) is described.
ChemInform Abstract: New Syntheses of 1,3‐Oxazines, Thiazoles, and 1,2‐Dithioles.
Authors: CAPUANO L. , BOLZ G. , BURGER R. , BURKHARDT V. , HUCH V.
Published: May 2016

The reaction of bis(aryl)diazomethanes such as (I) with thioamides such as (II) affords 1,3‐oxazin‐4‐ones (cf.
ChemInform Abstract: Synthesis of 2‐Morpholinopenta‐3,4‐dienal Derivatives and Propargyloxyenamines by Catalytic Aminomercuration of Dipropargyl Ethers.
Authors: BARLUENGA J. , AZNAR F. , BAYOD M. , ALVAREZ J. M.
Published: May 2016

The dipropargyl ethers (Ia) react with morpholine (II) in the presence of mercuric chloride and sodium carbonate to give the enamines (III) which rearrange at 110°C to give the α‐allenic α‐morpholino aldehydes (IVa).
ChemInform Abstract: Synthesis and Biological Evaluation of 2‐Substituted 1,2,3,4,6,7,13,13a‐Octahydropyrazino(1′,2′:1,2)azepino(5,4‐b)indoles: A Novel Class of Heterocyclic Compounds.
Authors: KHANDELWAL Y. , JAIN P. C. , ANAND N.
Published: May 2016

The title compound (VII), a homologue of the tranquilizer (VIII), and all intermediates obtained starting from the indole (I) are tested for their anthelmintic, antibacterial, hypotensive and neuroleptic activity.
ChemInform Abstract: Dimerization of Pyrazolyl‐5‐hydroxypyrrolidinones to Tetrazocines.
Authors: BRINKMEYER R. S. , TERANDO N. H.
Published: May 2016

Catalytic dehydration of (IV) by TosOH (method A)) is accompanied by dimerization of the intermediate iminium cation to give tetrazocines (VI) which, however, on treatment with H2SO4 in refluxing xylene yield (V) quantitatively.
ChemInform Abstract: Novel Anchored Nitrogen‐Containing Heterocycles of Potential Biological Activity from 2,3‐Dioxobutanethioanilide 2‐Arylhydrazone.
Authors: HANNA M. A. , GIRGES M. M. , MOAWAD E. B. , HASSAN H. M.
Published: May 2016

Coupling of the β‐oxothioanilide (I) with the aryldiazonium salts (II) leads to the formation of the arylhydrazones (III) which are cyclized with semicarbazide hydrochloride (IV) to form the pyrazoles (V).
ChemInform Abstract: Comparative Study of Mono‐ and Disubstituted 14‐Crown‐4 Derivatives as Lithium Ionophores.
Authors: KATAKY R. , NICHOLSON P. E. , PARKER D.
Published: May 2016

A variety of the title compounds such as (I) or (II) are prepared by common methods in an attempt to obtain selective ionophores for lithium ions.
ChemInform Abstract: Concave Reagents. Part 5. Bimacrocyclic 1,10‐Phenanthroline Cyclophanes.
Authors: LUENING U. + , MUELLER M. +
Published: May 2016

Whereas diaryl phenanthroline (IIIa) may be prepared from phenanthroline (II) and lithium aryl (Ia) in one step, the synthesis of (IIIb) gives better yields when performed in two steps via (IV).
ChemInform Abstract: Hydroboration. Part 84. Controlled and Sequential Hydroboration of Simple Representative Alkenes with Monoorganylboranes in Tetrahydrofuran. A Convenient Synthesis of Mixed Borinic Esters, R1R2BOR3, and Mixed Trialkylboranes, R1R2R3B. An Examination of Positional Selectivity in the First and Second States of Hydroboration.
Authors: SREBNIK M. , COLE T. E. , RAMACHANDRAN P. V. , BROWN H. C.
Published: May 2016

The monoalkyl boranes (IV), generated as outlined in the reaction scheme, react with the alkenes (V) and the alcohols (VI) to give the borinic esters (VII).
ChemInform Abstract: Synthesis of Tetraalkyl Esters of Dimethylaminomethanediylbisphosphorus Acids.
Authors: PRISHCHENKO A. A. , LIVANTSOV M. V. , BOGANOVA N. V. , ZHUTSKII P. V. , LUTSENKO I. F.
Published: May 2016

Dibutyl phosphonite (I) is coupled with the DMF acetal (II) to give the methanediylbisphosphonite (III).
ChemInform Abstract: Reactions of P‐Phenyl‐C‐aminophosphaalkenes with Azides. Generation and Trapping of a 1,3‐Phosphorus 1,3‐Dipole (PHPN2) Analogous to Phenyl Azide and of Phenylphosphinidene.
Authors: RAHMOUNE M. , KO Y. Y. C. Y. L. , CARRIE R. , TONNARD F.
Published: May 2016

The phosphaalkenes (I) react with the azides (II) to form the triazaphospholines (III) which are stable at temperatures below 0°C. At room temperature, decomposition takes place, yielding the amidines (IV), together with a mixture of the cyclophosphines (V) ‐ (VII).
ChemInform Abstract: α,β‐Unsaturated Thiolates and Their Analogues in Cycloaddition Reactions. Part 15. Reaction of 2‐Arylethyneselenolates with Phenyl Isoselenocyanate.
Authors: ZMITROVICH N. I. , PETROV M. L. , PETROV A. A.
Published: May 2016

The potassium arylethynylselenolates (I) undergo 1,3‐anionic cycloaddition with phenyl isoselenocyanate (II) to afford the 2‐phenylimino‐4‐aryl‐1,3‐diselenols (III).
ChemInform Abstract: 1,5‐Diselenacyclooctane: Synthesis and the First Isolation of the Diselenide PF6‐ Salt (R2Se+‐Se+R2).
Authors: FUJIHARA H. , AKAISHI R. , ERATA T. , FURUKAWA N.
Published: May 2016

Treatment of 1,2‐diselenolane (I) with sodium borohydride (II) results in ring cleavage, forming disodium propane‐1,3‐diselenolate (III).
ChemInform Abstract: Synthesis and Electrochemistry of Crown Ether Dithiocarbamates and the Molecular Dynamics of Bis(aza‐15‐crown‐5)thiuram Disulfide. Crystal Structure of Cobalt Tris((aza‐15‐crown‐5)dithiocarbamate).
Authors: GRANELL J. , GREEN M. L. H. , LOWE V. J. , MARDER S. R. , MOUNTFORD P. , SAUNDERS G. C. , WALKER N. M.
Published: May 2016

Addition of K3Fe(CN)6 (or (NH4)2S2O8) to the title compound (IV) causes oxidative dimerization to give (V), whereas the title compound (VII) decomposes under the same conditions.
ChemInform Abstract: Mechanistic Definition of Trimethylstannylation of 1,4‐Dihalobicyclo‐(2.2.1)heptanes: Bridgehead Nucleophilic Substitution Mediated by the Intermediacy of Radicals, Radical Anions, Carbanions, and (2.2.1)Propellane.
Authors: ADCOCK W. , GANGODAWILA H.
Published: May 2016

Six dihalobicycloheptanes such as (IV) and (V) are prepared starting with the acid (II) by the methods outlined in the reaction scheme.
ChemInform Abstract: Reactions of Carbon Dioxide with Electron‐rich Trimethylphosphine Compounds of Rhenium and Tungsten: Cystal Structure of (W(PMe3)4H2(CO3)).
Authors: ALLEN D. L. , GREEN M. L. H. , BANDY J. A.
Published: May 2016

The reaction of the hydrido‐Re(I) compound (III) and that of the hexahydrido‐W compound (VI) with CO2 (IV) lead to different products, i.e. the trans‐formiato(carbonyl) complex (V) and the carbonatodihydrido complex (VII) (space group Cmcm, Z=4).
ChemInform Abstract: Synthesis, Spectroscopic Studies, and Structure of an Unusual Dirhenium Complex with a Bridging Hydride Ligand.
Authors: CHEN S. J. , DUNBAR K. R.
Published: May 2016

The unusual dirhenium complex (III) (space group P41212, Z=4) is accessed by several methods including the reaction of the tetrachloride (I) with various carbonyl clusters in the presence of H2 and the direct combination of (I) with an H2/CO gas mixture in refluxing toluene.
ChemInform Abstract: Cyclopentadienyl Thiocarbonyl Complexes of Iron: (Cp*Fe(CO)2CS)+, Cp*2Fe2(CO)2(CS)2, Cp2Fe2(CO)3(CS), and Cp2Fe2(CO)2(CS)2.
Authors: CHOI M.‐G. , DANIELS L. M. , ANGELICI R. J.
Published: May 2016

The new thiocarbonyl complex (III) is prepared via the dithioester.
ChemInform Abstract: Orthophosphate Complexes of Cobalt(III). trans‐(Co(en)2(OH2)(OPO3H))ClO4·1/2 H2O and Its Properties in Aqueous Solution.
Authors: BRASCH N. E. , BUCKINGHAM D. A. , SIMPSON J. , STEWART I.
Published: May 2016

The properties of the title complex (II)·1/2 H2O (space group P21/c Z = 8) in aqueous solution are investigated as a function of pH by means of electronic, 1H and 31P NMR spectroscopy.
ChemInform Abstract: Highly Reduced Organometallics. Part 27. Synthesis, Isolation and Characterization of Trisodium Tricarbonylcobaltate(3‐), and Initial Studies on Its Derivative Chemistry.
Authors: ELLIS J. E. , BARGER P. T. , WINZENBURG M. L. , WARNOCK G. F.
Published: May 2016

A pure sodium compound (II) is described for the first time.
ChemInform Abstract: Synthesis, Spectroscopy and Magnetism of Mixed‐Valence Ni(II)‐Ni(III) Compounds with (Benz)imidazolethioether, Acetates and Dithiolates as Ligands. Crystal Structure of (Acetato)(1,6‐bis(benzimidazol‐2‐yl)‐2,5‐dithiahexane)nickel(II) Bis(toluene‐3,4‐dithiolato)niccolate(III).
Authors: OCHOCKI J. , CHAUDHURI PH. , DRIESSEN W. L. , DE GRAAF R. A. G. , HULSBERGEN F. B. , REEDIJK J.
Published: May 2016

The spontaneous air oxidation of a mixture of the N2S2 donor ligand/Ni(O‐Ac)2(H2O)4/toluene‐3,4‐dithiolate yields the title complexes (I) (yields not given).
ChemInform Abstract: Synthesis of Novel Cross‐Linked Amino Acid Derivatives.
Authors: EASTON C. J. , PETERS S. C.
Published: May 2016

Reaction of the amino acid derivatives (I) and (IV) with the bromide (II) gives the cross‐linked amino acids (III) and (V).
ChemInform Abstract: Synthesis of 4‐Substituted 2‐Aminopyrrolo(2,3‐d)pyrimidine 2′,3′‐Dideoxyribonucleosides.
Authors: SEELA F. , MUTH H.‐P.
Published: May 2016

The 4‐chloro compound (V) is used as the common intermediate in the synthesis of the new nucleosides (VI), (IX)‐(XI) and (XIII).
ChemInform Abstract: Synthesis, Isolation, and Characterization of Diastereochemically Pure Dithymidine Phosphormorpholidate Derivatives.
Authors: OZAKI H. , YAMANA K. , SHIMIDZU T.
Published: May 2016

The thymidines (I) and (III) and the morpholinophosphorditetrazolide (II) are coupled and then oxidized to form the diastereomeric phosphormorpholidates (IVa) and (Va).
ChemInform Abstract: Studies on Acanthaceae:Benzoxazine Glucoside and Benzoxazolone from Blepharis edulis Pers.
Authors: CHATTERJEE A. , SHARMA N. J. , BANERJI J. , BASA S. C.
Published: May 2016

The isolation of benzoxazolone (I) from the title species is reported for the first time.
ChemInform Abstract: Synthesis of Dimethyl Ethers of Atalantoflavone, Carpachromene and Their Analogues.
Authors: BANERJI A. , LUTHRIA D. L.
Published: May 2016

Since atalantoflavone dimethyl ether (IIIb) possesses a significant insecticidal activity, it was of interest to synthesize analogues for the evaluation of their bioactivity.
ChemInform Abstract: Synthesis of the Lignan (.+‐.)‐Dihydrosesamin: Problems of Stereocontrol in the Formation of 2,3,4‐Trisubstituted Tetrahydrofurans and Tetrahydrofuranones.
Authors: STEVENS D. R. , WHITING D. A.
Published: May 2016

The stereochemistry of the hydrogenation of the arylidene lactone (IV) is controlled by the 5‐substituent.
ChemInform Abstract: New Acetylenes from Chrysanthemum coronarium L.
Authors: SANZ J. F. , FALCO E. , MARCO J. A.
Published: May 2016

(i.e.
ChemInform Abstract: Prostanoids. Part 31. Levuglandin Analogues. Construction of the Latent Form of the γ‐Keto Aldehyde Moiety.
Authors: TOLSTIKOV G. A. , MIFTAKHOV M. S. , VALEEV F. A. , KHALIKOV R. M. , KHALILOV L. M.
Published: May 2016

The title compounds (IV) and (VI) are prepared by a novel one‐pot procedure.
ChemInform Abstract: Formation of High Quality Pure Aluminum Films by Low Kinetic Energy Particle Bombardment.
Authors: OHMI T. , KUWABARA H. , SAITOH S. , SHIBATA T.
Published: May 2016

A newly developed thin film sputter deposition technology denoted "low kinetic energy particle process" is used for the preparation of pure Al films and the films are characterized in detail.
ChemInform Abstract: Formation and Chemical Reactivity of Metal Carbonyl Complexes Containing Phosphorus‐Bridging Carbonyl Groups
Authors: KING R. B. , WU F.‐J. , HOLT E. M.
Published: May 2016

Review: (diiron complexes; 25 refs.
ChemInform Abstract: X‐Ray Absorption Edge Spectroscopy of Ligands Bound to Open‐Shell Metal Ions: Chlorine K‐Edge Studies of Covalency in CuCl2‐ 4.
Authors: HEDMAN B. , HODGSON K. O. , SOLOMON E. I.
Published: May 2016

Cl K‐edge XAS spectra are reported for CuCl42‐ complexes with either D2d (Cs2CuCl4) or D4h symmetry (bis(creatininium)CuCl4 (creatinine: 2‐imino‐1‐methyl‐4‐imidazolidinon)) of the Cu site as well as for Cs2ZnCl4.
ChemInform Abstract: Generation of Paramagnetic Vanadium Species in ZSM‐5 and Investigation of Their Interaction with Framework Aluminum Nuclei by Electron Spin Resonance and Electron Spin Echo Modulation
Authors: SASS C. E. , CHEN X. , KEVAN L.
Published: May 2016

(ESR, ESEM).
ChemInform Abstract: Dopant Activation, Carrier Mobility, and TEM Studies in Polycrystalline Silicon Films.
Authors: QUEIROLO G. , SERVIDA E. , BALDI L. , PIGNATEL G. , ARMIGLIATO A. , FRABBONI S. , CORTICELLI F.
Published: May 2016

Polycrystalline silicon films are deposited by low pressure CVD at 570 and 620 °C and the dopant activation, carrier Hall mobility, and microstructure are studied as a function of annealing temp. (600‐1000 °C, N2, 60 min).
ChemInform Abstract: Use of LiClO4·3.5 NH3 Ammoniate as Electrolyte in Lithium/Intercalation Compound Batteries.
Authors: TRANCHANT A. , MESSINA R. , FAHYS B.
Published: May 2016

The electrochemical behavior of the metal oxides MoO3, MnO2, Cr2O5, V2O5, and Na0.33V2O5 used as cathode materials in primary lithium batteries containing a LiClO4·3.5 NH3 electrolyte is found to be comparable with the electrochemical behavior observed in organic electrolytes.
ChemInform Abstract: Effect of the Surfactant “Forafac” on Hydrogen Evolution on a Zinc Electrode.
Authors: JUHEL G. , BEDEN B. , LAMY C. , LEGER J. M. , VIGNAUD R.
Published: May 2016

The surfactant Forafac F1 (C6F13‐C2H4(OC2H4)12‐OH) is shown to inhibit the H2 evolution at a stationary Zn electrode in saline (5 M NH4Cl) and alkaline electrolytes and thus can be used as a substitute for Hg in alkaline and zinc‐carbon batteries.
ChemInform Abstract: Electrochemistry of Tantalum(V) Chloride in the Basic Aluminum Chloride‐1‐Methyl‐3‐Ethylimidazolium Chloride Room‐Temperature Molten Salt.
Authors: BARNARD P. A. , HUSSEY C. L.
Published: May 2016

In the title melt, Ta(V) is present as (TaCl6)‐ complex and can be reduced to (TaCl6)2‐ in a reversible, one‐electron reaction with a voltammetric half‐wave potential of ‐0.49 V in the 44.4/55.6 mol% AlCl3/1‐methyl‐3‐ethylimidazolium chloride melt vs.
ChemInform Abstract: The Effect of Alloying on the Adsorption of Nitric Oxide on Platinum and Rhodium(100). A TDS Study Using a Pt‐Rh(100)‐Alloy Single‐Crystal Surface.
Authors: SIERA J. , KOSTER VAN GROOS M. J. , NIEUWENHUYS B. E.
Published: May 2016

Thermal desorption spectra for NO on a Pt‐Rh(100) surface are recorded as a function of NO coverage and the results are compared with data published for NO adsorption on Rh(100) and Pt(100).
ChemInform Abstract: Ternary Germanides of Lithium and Rare Earth Metals with Fe2P‐Type Structure: LiErGe, LiHoGe, LiNdGe and LiSmGe
Authors: CZYBULKA A. , SCHAUERTE W. , SCHUSTER H.‐U.
Published: May 2016

are prepared from mixtures of the elements (Li:M:Ge = 2.5:1:1; 1. 780 K, 12 h; 2. 1100 K, 48 h; Ta‐crucible).
ChemInform Abstract: Investigation of Inorganic Non‐Stoichiometric Compounds. Part 38. Quaternary Niobium Oxide Fluorides of Cadmium and Manganese with LiNb6O15F Structure.
Authors: KRUMEICH F. , GRUEHN R.
Published: May 2016

The compounds MxNb6(O,F)16 with M: Cd and Mn are prepared by heating mixtures of MF2 and Nb2O5 (1:7) at 1200 °C for 24 h. For both compounds powder XRD‐data are reported and single‐crystal XRD data are presented for a crystal of the Cd compound, the formula of which is given as Cd0.25Nb6O14.5F1.5.
ChemInform Abstract: Fluorides with Divalent Iron. Structure of CsFeF3.
Authors: HOPPE R. , BENNER G.
Published: May 2016

Colorless single crystals of the title compound are obtained for the first time while carefully avoiding O2‐ contamination.
ChemInform Abstract: Low Resistance Ohmic Contacts onto n‐InP by Palladium Electroless Bath Deposition.
Authors: STREMSDOERFER G. , CALAIS C. , MARTIN J. R. , CLECHET P. , NGUYEN‐DU NGUYEN‐DU
Published: May 2016

The electroless Pd deposition bath developed for the fabrication of low resistance ohmic contacts on InP consists of PdCl2, NH2OH, citric acid, HCl, and H2O, i.e. the bath contains no K+ and no HF.
ChemInform Abstract: Studies on Quinones. Part 18. Synthesis of Diels‐Alder Adducts of Activated Quinones with E‐1‐Trimethylsilyloxybuta‐1,3‐diene.
Authors: VALDERRAMA J. A. , FARINA F. , PAREDES M. C.
Published: May 2016

The p‐benzoquinones (II) generated in situ by oxidation of the hydroquinone (I) with manganese dioxide, undergo cycloaddition reaction with the siloxybutadiene (III), forming selectively the cis‐fused tetrahydronaphthoquinones (IV).
ChemInform Abstract: On the Stability and Decomposition of Phenyl(phenylazo)methyl Hydroperoxide.
Authors: VAGO J. , PAAL‐LUKACS J.
Published: May 2016

Decomposition of the hydroperoxide (I) in the presence of protons produces the azo (II) and the hydrazo compounds (III).
ChemInform Abstract: Rearrangements of Non‐Indolizable Arylhydrazones of Methoxy‐Substituted Aromatic Carbonyl Compounds in Polyphosphoric Acid.
Authors: BECCALLI E. , BENINCORI T. , SANNICOLO F.
Published: May 2016

PPA treatment of a series of title arylhydrazones, e.g. (I), leads to main products (cf.
ChemInform Abstract: Nitroxides (Aminyl Oxides). Part 43. The Effect of Structural Features Upon the Dimerization of Vinyl Nitroxides Substituted in β‐Position by Cyclic Acyl Groups.
Authors: AURICH H. G. , FRANZKE M. , KESSELHEIM H.‐P. , KESSLER W. , MASSA W. , WOCADLO S.
Published: May 2016

Nitrones such as (III), (VIII), or (XII) are prepared as shown in the scheme and their tautomeric behavior is investigated.
ChemInform Abstract: Indirect Electrooxidation of Alcohols by a Double Mediatory System (R2N+=O)/R2N‐O· and (Br· or Br+)Br‐ Redoxes.
Authors: INOKUCHI T. , MATSUMOTO S. , NISIYAMA T. , TORII S.
Published: May 2016

Electrolysis of undecanol (II) in the presence of 4‐benzyloxy‐2,2,6,6‐tetramethylpiperidine 1‐oxyl (I) and sodium bromide as recyclable reagents yields the aldehyde (III) and the ester (IV), depending on the amount of the piperidine 1‐oxyl used.
ChemInform Abstract: The Reactions of C‐Methylheterocycles with Thionyl Chloride. Part 3. The Transformation of Some Five‐ and Six‐Membered Heterocycles.
Authors: AL‐SHAAR A. H. M. , GILMOUR D. W. , LYTHGOE D. J. , MCCLENAGHAN I. , RAMSDEN C. A.
Published: May 2016

Reaction of various five‐ or six‐membered C‐methyl heterocycles such as (I) or (V) with SOCl2 (II) gives chlorothio intermediates, which are not characterized but react with amidines (III) or amines (VI) to yield either the thiadiazoles (IV) or the thioamides (VII).
ChemInform Abstract: Trifluoromethylation of 1,3,5‐Trinitrobenzene.
Authors: STAHLEY G. P.
Published: May 2016

The trifluoromethyl anion, generated by thermal decomposition of potassium trifluoroacetate (II), is trapped with 1,3,5‐trinitrobenzene (I), forming the Meisenheimer complex (III) which is characterized by its 1H NMR spectrum.
ChemInform Abstract: Synthesis of Trichloromethylperfluoroalkanes (RFCCl3, RF = CnF2n+1 (n = 4,6,8)).
Authors: GRONDIN J. , BLANCOU H. , COMMEYRAS A.
Published: May 2016

The title compounds (III) are prepared by reaction of perfluoroalkyl iodides (I) with tetrachloromethane (II) and zinc in the presence of a chlorinated solvent, such as dichloromethane or dichloroethane.
ChemInform Abstract: Asymmetric Synthesis. Part 9. Stereocontrolled Synthesis of (R)‐ or (S)‐2‐Amino‐2‐phenylethanol via Chiral Pinanone Ketimine Template.
Authors: MI A. , WANG J. , CHEN Y. , YANG G. , JIANG Y.
Published: May 2016

The key step in the selective synthesis of the optically pure enantiomers of the amino alcohol (IX) is the hydroxymethylation of the chiral benzylimines (IV) via lithiation with n‐butyllithium in the presence of HMPA, yielding the optically active imines (VI).
ChemInform Abstract: Nitronate Anions as Precursors of Hydroxynitrilium Ions. Equivalents in Electrophilic Aromatic Substitution. A Novel Route to Oximes.
Authors: BERRIER C. , BRAHMI R. , CARREYRE H. , COUSTARD J. M. , JACQUESY J. C.
Published: May 2016

The sodium salts (III) of aci‐nitroalkanes, obtained from the corresponding nitroalkanes (I), react with the benzene derivatives (IV) in hydrogen fluoride to give the oximes (VI) or (VII) ‐ (IX).
ChemInform Abstract: Synthesis, Structure, and Cytostatic Activity of a Series of N‐Substituted 3,4‐Diphenyl‐1H‐pyrrole‐2,5‐diones.
Authors: BRANA M. F. , FERNANDEZ A. , GARRIDO M. , RODRIGUEZ M. L. L. , MORCILLO M. J. , SANZ A. M.
Published: May 2016

Fourteen N‐substituted symmetrical diarylmaleimides such as (IIIa) ‐(IIId) are prepared by reaction of the anhydrides (I) with the amines (II).
ChemInform Abstract: Synthesis of Hydrophenanthrene Derivatives Related to Diterpenes Involving Reductive Methylation of Aromatic Ketones.
Authors: GHOSAL M. , DAS S. , MUKHERJEE D.
Published: May 2016

The β‐naphthylbutyric acid (VIa), prepared from naphthalene (II) and the dimethylacrylate (I) as shown in the reaction scheme, and its methoxy analogue (VIb) are cyclized upon treatment with polyphosphoric acid, yielding the tetrahydrophenanthrenones (VII).
ChemInform Abstract: Reissert Compound Formation by Use of Solid‐Liquid Phase‐Transfer Catalysis.
Authors: UFF B. C. , BURFORD D. L. W. , HO Y.‐P.
Published: May 2016

The reported method is effective with both five‐ and six‐membered ring N‐heterocycles except benzothiazole giving only low yields of Reissert compounds.
ChemInform Abstract: Practical Synthesis of dl‐4‐Hydroxymethyl‐2‐buten‐4‐olide from Furfural.
Authors: WANG Z.‐Q. , ZHOU W.‐S. , CHEN Y. , WY Y.‐H. , ZHU Z.‐Y.
Published: May 2016

The butenolide (IX) mentioned in the title is prepared from furfural (I) via silylation of the diethyl acetal (III) followed by oxidation to form the furanone (VI).
ChemInform Abstract: A Highly Diastereoselective Route to Disubstituted Tetrahydrofuran Derivatives by Substitution of γ‐Lactols with Silylated Nucleophiles.
Authors: SCHMITT A. , REISSIG H.‐U.
Published: May 2016

Treatment of 2‐hydroxy‐3‐methyltetrahydrofuran (I) with the allylsilanes (II) in the presence of boron trifluoride etherate results in substitution to yield the trans‐allylmethyltetrahydrofurans (III) as the main products.
ChemInform Abstract: Synthesis of γ‐Lactones by Iron(III) Perchlorate Oxidation of Malonic Esters in the Presence of Olefins.
Authors: CITTERIO A. , SEBASTIANO R. , NICOLINI M. , SANTI R.
Published: May 2016

Treatment of the malonates (I) with the alkenes (II) in the presence of iron(III) perchlorate nonahydrate results in oxidative cyclization to give the butyrolactones (III).
ChemInform Abstract: Synthesis of 4,7‐Disubstituted Spirobenzofuran‐2(3H)‐cyclohexanes.
Authors: BRADBURY B. J. , SINDELAR R. D.
Published: May 2016

A general strategy is shown for the preparation of the title compounds (VII) and (VIII) and some of their derivatives using successive, regioselective heteroatom‐facilitated aromatic lithiation reactions and subsequent reaction with electrophiles.
ChemInform Abstract: Stereocontrolled Amidocyclizations with Phenylthio Migration.
Authors: COLDHAM I. , WARREN S.
Published: May 2016

Propionitrile (I) is coupled with the aldehyde (II) to give the diastereomeric hydroxy nitriles (III) which are separated and then reduced, forming the amino alcohols (IV).
ChemInform Abstract: Synthesis and Cardiotonic Activity of Novel Biimidazoles.
Authors: MATTHEWS D. P. , MCCARTHY J. R. , WHITTEN J. P. , KASTNER P. R. , BARNEY C. L. , MARSHALL F. N. , ERTEL M. A. , BURKHARD T. , SHEA P. J. , KARIYA T.
Published: May 2016

The synthesis of biimidazoles such as (IV) is achieved by reaction of imidazole‐2‐carboxaldehydes, e.g. (I), with 1,1‐dibromo‐3,3,3‐trifluoroacetone (II) and ammonia (III).
ChemInform Abstract: Heterocyclic (4+ + 2) Cycloadditions: The Reactivity of Pyridinium Salts with Electron‐Rich Olefins.
Authors: FALCK J. R. , WITTENBERGER S. J. , RAJAPAKSA D. , MIOSKOWSKI C. , BOUBIA B.
Published: May 2016

The reaction of the ester (VI) yields the by‐products (IX), (X) and (XI).
ChemInform Abstract: Antihypertensive Dihydropyridines with 1,4,4‐Trisubstitution.
Authors: KUKLA M. J. , BRESLIN H. J. , GILL A.
Published: May 2016

The synthesis of trisubstituted dihydropyridines, e.g. (III), is achieved by reaction of a dialdehyde such as (I) with an amino acid ester hydrochloride, e.g. (II).
ChemInform Abstract: A General Method for the Preparation of 2‐Substituted‐4‐oxo‐3‐quinolinecarboxylic Acids.
Authors: KIELY J. S. , HUANG S. , LESHESKI L. E.
Published: May 2016

A general method for preparing title compounds such as the corresponding acids from the esters (V) as well as the piperazinyl derivatives (VII) as new analogues in the quinolone class of antiinfectives is developed.
ChemInform Abstract: A Convenient Method for the Synthesis of N‐Alkyl‐Substituted 4‐Hydroxy‐1,2,3,4‐tetrahydroisoquinolines.
Authors: SIMIG G. , SCHLOSSER M.
Published: May 2016

The aromatic aldehyde (I) is transformed into the hydroxytetrahydroquinolines (VI) in a one‐pot procedure by reductive amination, alkylation with bromoacetaldehyde diethyl acetal (IV), and acid‐catalyzed cyclization.
ChemInform Abstract: Pyridazines. Part 46. Preparation of Azolopyridazinecarboxylic Acids.
Authors: HEINISCH G. , LOETSCH G. + , OFFENBERGER S. , STANOVNIK B. , TISLER M.
Published: May 2016

The title acids resp. their esters such as (III), (VI) or (VIII) are prepared either by oxidation of the corresponding methyl‐substituted azolopyridazines such as (I) or by a regioselective radical substitution process.
ChemInform Abstract: Synthesis and Pharmacological Study of Pyridazino(4,5‐b)carbazoles.
Authors: LANDELLE H. , LADUREE D. , CUGNON DE SEVRICOURT M. , ROBBA M.
Published: May 2016

The carbazoledicarboxylates (I) react with hydrazine hydrate (II) to give the pyridazinocarbazolediones (III).
ChemInform Abstract: A New Route to the Synthesis of 5‐Fluorouracil.
Authors: BAASNER B. , KLAUKE E.
Published: May 2016

Fluorine/chlorine exchange of tetrafluoropyrimidine (I) with gaseous hydrochloric acid proceeds predominantly in 4 and 6 position to form (III) which is separated from lower and higher chlorinated products, (II) and (IV), by distillation.
ChemInform Abstract: Cleavage of Ylidic Bonds in Phosphorus Ylides: Photolysis of Thiophosphoranyl‐Substituted (Triphenylphosphoranylidene)methanes.
Authors: GRUETZMACHER H. +
Published: May 2016

The formation of the heterocycles (II) is explained by insertion of the photolytically obtained carbenes into the methine CH bond of one of the isopropyl groups.
ChemInform Abstract: The Preparation of New Spirocyclic N,N′‐Dimethylsulfamide‐Substituted Phosphorus Compounds, and of Some N,N′‐Dimethylsulfamide‐Bridged Diphosphorus Compounds.
Authors: JONES P. G. , MEYER A. , SCHMUTZLER R.
Published: May 2016

The reactions of the chloro derivative (I) with trimethylsilyl compounds such as (II) and sodium azide lead to the series of spirocyclic phosphoranes (III).
ChemInform Abstract: Lithium Compounds of a Chlorosilanol and of Fluoro‐Functional Siloxanols; Synthesis and Crystal Structures.
Authors: SCHMIDT‐BAESE D. + , KLINGEBIEL U.
Published: May 2016

Lithiation of the known silanols (I) and (IV) in hexane leads to the trimer (III) (space group P21/c, Z=4) and to the stable monomeric Li derivative (V), respectively.
ChemInform Abstract: Synthesis and Reactivity of Alkyne Substituted Titanocene Complexes.
Authors: LANG H. , SEYFERTH D.
Published: May 2016

In general, the preparation of complexes such as (VII) (18 examples) is also possible for some cases using Grignard reagents BrMg‐C≡C‐R2 (only in the reaction with (Va)) or Na acetylides.
ChemInform Abstract: Homo‐ and Heterobimetallic μ(η1‐O:η1‐O′) Formate Complexes (M‐OCHO‐M′)+PF‐ 6 (M, M′: (η5‐C5H5)(CO)(NO)Re, (η5‐C5H5)(CO)3W, and (η5‐C5H5)(CO)2Fe): Their Synthesis, Solution Lability, and Reactivity Toward Hydride Donors.
Authors: TSO C. C. , CUTLER A. R.
Published: May 2016

The complexes (I), available through protonolysis (HBF4‐HCOOH) of their methyl complexes, react to give homo‐ or heterobimetallic formate‐bridged complexes.
ChemInform Abstract: Reactions of (Cp(CO)2Fe=CHAr)+ (Ar: p‐C6H4OMe) with O=N‐Ar′ (Ar′: C6H5, p‐C6H4NMe2) and PhN=NPh.
Authors: PENG W.‐J. , GAMBLE A. S. , TEMPLETON J. L. , BROOKHART M.
Published: May 2016

The organometallic products formed in the title reactions reflect net insertion of the nitroso or azo unit into the iron‐carbene bond.
ChemInform Abstract: Synthesis, Properties and Crystal Structures of Dicopper(I) and Disilver(I) Complexes with 1,8‐Naphthyridine (napy): (Cu2(napy)2)(ClO4)2 and (Ag2(napy)2)(ClO4)2.
Authors: MUNAKATA M. , MAEKAWA M. , KITAGAWA S. , ADACHI M. , MASUDA H.
Published: May 2016

The title complexes (Ia) (space group P1, Z=1) and (Ib) ( P21/n, Z=2) are prepared by reaction of Cu(I) and Ag(I) perchlorate with the title ligand with 41 and 74% yield, resp., and characterized by X‐ray structure analysis.
ChemInform Abstract: Solution Synthesis of a Biologically Active Fragment (33‐41) of Thymosin β9.
Authors: KALBACHER H. , JAHAN M. , MIHELIC M. , ZAMAN F. , VOELTER W.
Published: May 2016

The title fragment (I) is prepared using the strategy of maximum side‐chain protection with acid‐labile tert.‐butyl groups and temporary Nα‐benzyloxycarbonyl protection during the elongation step.
ChemInform Abstract: Glycosidation. Part 12. Stereoselective Synthesis of 1,1‐Dialkyl‐1‐methoxymethyl Glucosides (Acetal Glucosides).
Authors: TIETZE L. F. , FISCHER R. , LOEGERS M. + , BELLER M.
Published: May 2016

The β‐D‐glucopyranose (I) reacts with the ketones (II) in the presence of the silyl ether (III) and trimethylsilyl trifluoromethanesulfonate as the catalyst to give stereoselectively the corresponding acetal β‐glycosides (IV) which are deacetylated to produce the corresponding tetrahydroxy derivatives (V).
ChemInform Abstract: Syntheses of C‐Nucleosides and Analogues of C‐Nucleosides. Part 6. Syntheses of Higher Sugars by a New Chain‐Elongation Reaction.
Authors: PESEKE K. , AMBROSI H.‐D. , MICHALIK M.
Published: May 2016

The nitroglucopyranosides (I) and (XI) react with carbon disulfide (II) and methyl iodide (III) to give the dithioacetals (IV) and (XII).
ChemInform Abstract: Thiazolo(4,5‐d)pyrimidine Nucleosides. The Synthesis of Certain 3‐β‐D‐Ribofuranosylthiazolo(4,5‐d)pyrimidines as Potential Immunotherapeutic Agents.
Authors: NAGAHARA K. , ANDERSON J. D. , KINI G. D. , DALLEY N. K. , LARSON S. B. , SMEE D. F. , JIN A. , SHARMA B. S. , JOLLEY W. B. , ROBINS R. K. , COTTAM H. B.
Published: May 2016

In order to evaluate the effect of the insertion of a sulfur atom instead of nitrogen at position 7 of the purine ring, thiazolopyrimidine nucleosides such as (IV) are prepared as shown in the reaction scheme.
ChemInform Abstract: Total Syntheses of Riccardins A, B, and C, Cytotoxic Macrocyclic Bis(bibenzyls) from Liverworts.
Authors: GOTTSEGEN A. , NOGRADI M. , VERMES B. , KAJTAR‐PEREDY M. , BIHATSI‐KARSAI E.
Published: May 2016

Riccardin B (VII) is prepared as its dimethyl ether and characterized as its diacetate.
ChemInform Abstract: Synthesis and Structure‐Activity Relationships of New 7‐(3‐(Fluoromethyl)piperazinyl)‐ and ‐(Fluorohomopiperazinyl)quinolone Antibacterials.
Authors: ZIEGLER C. B. JUN. , BITHA P. , KUCK N. A. , FENTON T. J. , PETERSEN P. J. , LIN Y.
Published: May 2016

Reaction of the 6,7‐difluorodihydroquinolinecarboxylic acids (I) with the cyclic diamines (II) yields the novel piperazinyl‐ or homopiperazinylquinolone antibacterials (III).
ChemInform Abstract: A Synthesis of the C24‐C34 Segment of FK 506.
Authors: KOCIENSKI P. , STOCKS M. , DONALD D. , PERRY M.
Published: May 2016

The meso‐diester (I) is converted into the vinylcyclohexane (XIV) which is the C24‐C34 segment of the macrocyclic immunosupressant tsukubaenolide FK 506. Key intermediates in the reaction sequence are the homochiral acid (VI) and the hydroxamate (XII).
ChemInform Abstract: Layer Anions in the Crystal Structures of the Isotypic Compounds Sr2(Ga2S5), Ba2(In2S5), and Ba2(In2Se5).
Authors: EISENMANN B. , HOFMANN A.
Published: May 2016

The isotypic title compounds, prepared by annealing stoichiometric mixtures of the elements at 1150‐1250 °C, crystallize in the orthorhombic space group Pbca with Z = 8. Their structures consists of GaS4‐, InS4‐, or InSe4‐tetrahedra which are connected via three corners of each tetrahedra to form layers containing rings built up by four and eight tetrahedra.
ChemInform Abstract: Crystal Structure and Magnetic Order of UCo5
Authors: DOMMANN A. , BRAENDLE H. + , HULLIGER F. , FISCHER P.
Published: May 2016

are determined qualitatively by neutron diffraction measurements at 293, 133 and 15 K. The rhombohedral structure of UCo5 is related to the hexagonal CaCu5‐type (detailed discussion).
ChemInform Abstract: Hydrogenation, Disproportionation and Desorption (HDD): An Effective Processing Route for Nd‐Fe‐B‐Type Magnets.
Authors: MCGUINESS P. J. , ZHANG X. J. , YIN X. J. , HARRIS I. R.
Published: May 2016

Using the coarse‐grained, non‐homogeneous cast alloys Nd16Fe76B8 and Nd2.1Fe14B, it is demonstrated that the HDD process yields fine‐grained homogeneous materials which exhibit appreciable coercivities and remanences characteristic of isotropic materials.
ChemInform Abstract: Cationic Lead(II) Hydroxide Complexes in Molten Alkali‐Metal Nitrate.
Authors: BENGTSSON L. , HOLMBERG B.
Published: May 2016

The complexation between Pb(II) and OH‐ is studied in molten KNO3/NaNO3 at 280 °C by various electrochemical and spectroscopic (Raman, 1H NMR) methods.