bluuebunny/crossref_metadata_2025 huggingface dataset:
ChemInform Abstract: Stereoselective Synthesis of Optically Pure β,γ‐Unsaturated α‐Amino Acids in Both L‐ and D‐Configurations.
Authors: SASAKI N. A. , HASHIMOTO C. , PAULY R.
Published: May 2016

The diprotected α‐amino β‐sulfonyl alcohol (R)‐(I) is coupled with acetaldehyde (II), acetylated, and subjected to elimination and sulfonation procedures to form the diprotected aminopentenol (VI).
ChemInform Abstract: β,γ‐Unsaturated α‐Amino Acid δ‐Lactones. Precursors for Polyhydroxy Amino Acids.
Authors: CAMPBELL M. M. , FLOYD A. J. , LEWIS T. , MAHON M. F. , OGILVIE R. J.
Published: May 2016

The xylal (I) is rearranged to form the anomers (III) and (IV) which are the starting materials for the preparation of various amido derivatives.
ChemInform Abstract: Hydrogen Fluoride‐Catalyzed Formation of Glycosides. Preparation of Methyl 2‐Acetamido‐2‐deoxy‐β‐D‐gluco‐ and ‐β‐D‐galactopyranosides, and of β‐(1→6)‐Linked 2‐Acetamido‐2‐deoxy‐D‐gluco‐ and ‐D‐galactopyranosyl Oligosaccharides.
Authors: DEFAYE J. , GADELLE A. , PEDERSEN C.
Published: May 2016

When 2‐acetamido‐2‐deoxy‐D‐glucose (I) or ‐D‐galactose (V) is dissolved in hydrogen fluoride and the solution is subsequently treated with excess methanol (II), the corresponding methyl β‐D‐glucopyranosides (III) or (VI) are isolated.
ChemInform Abstract: Synthesis of Sorbistin Analogues.
Authors: MEDGYES G. , JERKOVICH G. , KUSZMANN J. , FUEGEDI P. +
Published: May 2016

The glycosyl chloride (II), synthesized in eleven steps from methyl β‐D‐galactopyranoside (I), is coupled with 2,5‐diazido‐1,6‐di‐O‐benzoyl‐2,5‐dideoxy‐L‐iditol (III) to give the glycoside (IV).
ChemInform Abstract: Benzophenanthridines. Part 9. Synthesis of the Chloride of the Methyl Ether of 11‐Methyl‐C‐norphagaronine from (.+‐.)‐13α‐Hydroxyxylopinine.
Authors: SAZONOVA N. M. , SLADKOV V. I. , SUVOROV N. N.
Published: May 2016

Starting from the readily available dibenzoquinolizidine derivative (I) the hitherto unknown title compound (VI) is prepared.
ChemInform Abstract: Synthesis of Methyl 2,3‐Dideoxy‐3‐(7‐theophyllyl)‐L‐pentopyranosides and 5‐O‐Benzoyl‐2,3‐dideoxy‐3‐(7‐theophyllyl)‐D‐erythro‐pentofuranose by a Michael Type Addition Reaction to α,β‐Unsaturated Aldehydes.
Authors: LAU J. , PEDERSEN E. B.
Published: May 2016

In the preceding communication theophyllyl‐D‐pentopyranose derivatives have been synthesized.
ChemInform Abstract: Bicyclic Pyrazolidinone Antibacterial Agents. Synthesis of Side Chain Analogues of Carbapenems PS‐5 and Thienamycin.
Authors: JUNGHEIM L. N.
Published: May 2016

The key precursors for the preparation of the target compounds are the pyrazolidinium methylides (VIII), prepared by cyclization of the acrylates (I) or (VI) with hydrazine (II).
ChemInform Abstract: Displacement with Nitrogen Nucleophiles at C‐3′ of 7‐Aminocephalosporanic Acid and Derivatives Promoted by Trialkylsilyl Trifluoromethanesulfonates.
Authors: ACTON D. G. , ROGERS K. J. , POYSER J. P.
Published: May 2016

The acetate (I) reacts with N‐ethylbenzaldimine (II) in the presence of trimethylsilyl triflate to give the amine (III).
ChemInform Abstract: Synthesis of Basic Substituted Pyridines: A New Class of Antiasthmatic‐Antiallergic Agents.
Authors: ANAGNOSTOPULOS H. , BARTLETT R. R. , ELBEN U. , STOLL P.
Published: May 2016

Twenty title compounds of type (IV)‐(VI) are prepared by the methodology shown in the scheme; they all display various pharmacological properties.
ChemInform Abstract: Non‐Basic Histamine H1‐Antagonists. Part 1. Synthesis and Biological Evaluation of Some Substituted 2‐(2‐Pyridylaminoalkylamino)pyrimidones and Related Compounds.
Authors: IFE R. J. , CATCHPOLE K. W. , DURANT G. J. , GANELLIN C. R. , HARVEY C. A. , MEESON M. L. , OWEN D. A. A. , PARSONS M. E. , SLINGSBY B. P. , THEOBALD C. J.
Published: May 2016

Besides the most active title compound (IV), 25 further derivatives with a modified pyridylaminoalkylamino moiety as in (V) are prepared by similar procedures.
ChemInform Abstract: Vapor Phase Deposition of Palladium for Electroless Copper Plating.
Authors: THOMAS R. R. , PARK J. M.
Published: May 2016

Allylcyclopentadienylpalladium, (III), exhibits unusual volatility at room temp. and its photochemical decomposition in the gas phase results in the deposition of a film consisting of a homogeneous mixture of Pd particles in an organic polymer matrix.
ChemInform Abstract: Improved Dielectric Properties for Anodic Aluminum Oxide Films by Soft/Hard Two‐Step Electrolytic Anodization.
Authors: DICKEY J. R. , DAVIDSON J. L. , TZENG Y.
Published: May 2016

It is demonstrated that the developed two‐step anodization process (soft/hard process) can be successfully used for the fabrication of high quality dielectrics.
ChemInform Abstract: Electrical Resistivity and Magnetic Ordering of Gadolinium and Terbium Bromide Deuterides, LnBrDx (2/3 < x ≤ 1)
Authors: COCKCROFT J. K. , BAUHOFER W. , MATTAUSCH HJ. , SIMON A.
Published: May 2016

are studied as a function of the D content.
ChemInform Abstract: The Phase Diagram AgI‐ZnI2.
Authors: BLACHNIK R. , STOETER U. +
Published: May 2016

The phase diagram of the title system, obtained by thermal and X‐ray methods, is in good agreement with previously reported diagrams.
ChemInform Abstract: Sodium/V6O13 Polymer Electrolyte Cells.
Authors: MUNSHI M. Z. A. , GILMOUR A. , SMYRL W. H. , OWENS B. B.
Published: May 2016

The electrochemical behavior of an all solid state cell utilizing a Na anode, a polyethylene oxide (PEO) based electrolyte (NaCF3SO3/PEO) and a V6O13 insertion cathode is studied.
ChemInform Abstract: Influence of Oxygen Impurity on the Hydrogenation Properties of LaNi5, LaNi4.7Al0.3 and MmNi4.5Al0.5 During Long‐Term Pressure‐Induced Hydriding‐Dehydriding Cycling
Authors: HAN J. I. , LEE J.‐Y.
Published: May 2016

(Mm: mischmetal).
ChemInform Abstract: Metal Ion Binding by Amino Acids. ‐ The Crystal Structure of Racemic Magnesium Bis(hydrogenaspartate) Tetrahydrate Mg(L‐AspH)(D‐AspH)·4 H2O.
Authors: SCHMIDBAUR H. , BACH I. , WILKINSON D. L. , MUELLER G. +
Published: May 2016

The title compound (I) is prepared from equiv. quantities of racemic aspartic acid and Mg(OH)2 in water and crystallizes in P21/c with Z=2.
ChemInform Abstract: Electroorganic Synthesis. Part 40. Oxidative Cyclization of 3‐Anilinocyclohex‐2‐enones to Tetrahydrocarbazoles.
Authors: SCHAEFER H. J. + , EILENBERG W.
Published: May 2016

The dihydrocarbazolones (IV) and (IX) are prepared from the enaminones (I) and (VII) by electrochemical oxidation and cyclization or by oxidative cyclization.
ChemInform Abstract: Substitution Reactions of Cyclic 2‐Benzenesulfonyl Ethers with Silyl Enol Ethers Promoted by Aluminum Trichloride.
Authors: BROWN D. S. , LEY S. V. , BRUNO M.
Published: May 2016

The sulfones (I), (IV), and (VII) react with the silyl enol ethers (II) and (VIII) or the trimethylsilanes (XI) to give the C‐alkylation products as outlined in the reaction scheme.
ChemInform Abstract: Michael Additions with an Enaminoester: Reaction of Phenyl 4‐Chromone‐3‐sulfonate with Methyl 3‐Amino‐2‐pentenoate.
Authors: LOEWE W. + , KRADEPOHL A.
Published: May 2016

The products (III)‐(V) of the title reaction can be separated by TLC (yield of the mixture given in mg).
ChemInform Abstract: α‐Amidoalkylation of CH‐Acids by Means of N‐(1,2,2,2‐Tetrachloroethyl) Amides.
Authors: IVANOV C. , DOBREV A. , NECHEV L. , NIKIFOROV T.
Published: May 2016

The N‐tetrachloroethyl carboxamides (I) are coupled with the sodium salts (II) of ethyl acetoacetate or diethyl malonate, yielding the α‐amidoalkyl carboxylates (III).
ChemInform Abstract: Bis(trifluoroacetylacetonato)cobalt(II)‐Catalyzed Oxidation‐Reduction Hydration of Olefins. Selective Formation of Alcohols from Olefins.
Authors: INOKI S. , KATO K. , TAKAI T. , ISAYAMA S. , YAMADA T. , MUKAIYAMA T.
Published: May 2016

The olefinic compounds (I) are hydrated with molecular oxygen/2‐propanol in the presence of bis(trifluoroacetylacetonato)cobalt(II) to produce the alcohols (II).
ChemInform Abstract: The Mechanism of Formation of Grignard Reagents: Trapping of Free Alkyl Radical Intermediates by Reaction with Tetramethylpiperidine‐N‐oxyl.
Authors: ROOT K. S. , HILL C. L. , LAWRENCE L. M. , WHITESIDES G. M.
Published: May 2016

In the presence of the free radical scavenger (II), Mg, and tert.‐amyl alcohol the sum of the yields of (III) and (IV) accounts for > 90%, the product ratio depending on the initial concentration of (II).
ChemInform Abstract: Stereospecific Preparation of trans‐Glycidic Esters.
Authors: POLNIASZEK R. P. , BELMONT S. E.
Published: May 2016

The benzaldehydes (I) are coupled with S‐tert‐butyl bromothioloacetate (II) in the presence of dicyclopentadienylboron triflate and diisopropylethylamine to form the anti‐α‐bromo‐β‐hydroxythiocarboxylates (III).
ChemInform Abstract: The Behaviour of 4‐Benzoyl‐2‐azetidinones with Bases. Regioselectivity in Their Alkylation Reactions.
Authors: ALCAIDE B. , DOMINGUEZ G. , MARTIN‐DOMENECH A. , MARTIN I. , CATIVIELA C. , MAYORAL J. A. , PLUMET J.
Published: May 2016

Alkylation of the β‐lactam (I) with ethyl iodide (II) gives the ethyl‐β‐lactam (III).
ChemInform Abstract: A New Synthetic Route to the Key Precursor of 1β‐Methylcarbapenem Antibiotics from Methyl (S)‐3‐Hydroxy‐2‐methylpropanoate.
Authors: SHIRAI F. , NAKAI T.
Published: May 2016

The key step in the synthesis of the carbapenem precursor (VII) is the selective aldol reaction of the silylketene acetal (I) with the benzyloxyisobutyraldehyde (II), yielding almost exclusively the anti‐diastereomer of (III).
ChemInform Abstract: Monofunctionalization Study of Furan‐2,5‐dicarboxaldehyde. Conformational Analysis and Model Reactions.
Authors: HERNANDEZ‐FUENTES I. , ABRADELO C. , DOMINGUEZ C. , CSAKY A. G. , PLUMET J. , CATIVIELA C. , MAYORAL J. A. , GASET A. , RIGAL L.
Published: May 2016

Furan‐2,5‐dicarbaldehyde (I) undergoes base‐catalyzed coupling with the (het)aryl methyl ketones (II) to give a mixture of the keto alcohols (III) and the enones (IV).
ChemInform Abstract: Pyrrolidine Derivatives: An Efficient Synthesis of 3‐Substituted (2S,5S)‐Pyrrolidine‐2,5‐dicarboxylic Acids.
Authors: HONMA T. , TADA Y. , ADACHI I. , IGARASHI K.
Published: May 2016

Starting from L‐aspartic acid via L‐(I) the pyrrolidone dicarboxylate (Va) is prepared in high stereoselectivity by two routes.
ChemInform Abstract: Synthesis of the Enantiomeric Polyether Fragment of Tetronomycin.
Authors: HORI K. , NOMURA K. , YOSHII E.
Published: May 2016

The phenyl sulfone (IV), prepared from L‐rhamnal diacetate (I), is coupled with the tetrahydropyrancarboxaldehyde (V) to give the alcohol (VI).
ChemInform Abstract: Synthesis of 5‐Azaindoles by Substitution‐Rearrangement of 7‐Azaindoles Upon Treatment with Certain Primary Amines.
Authors: GIRGIS N. S. , LARSON S. B. , ROBINS R. K. , COTTAM H. B.
Published: May 2016

The 7‐azaindole (I) undergoes a nucleophilic substitution‐rearrangement upon treatment with various prim. amines (II) at elevated temp. to yield the substituted 5‐azaindoles (III).
ChemInform Abstract: A Novel Photo‐Induced Substitution of Alkyl 2‐Cyano‐3‐quinolinecarboxylates.
Authors: ONO I. , FUJIKI Y. , FUJINAMI N. , HOSHI T.
Published: May 2016

The cyanoquinolinecarboxylates (I) are irradiated in the primary alcohols (II) or (V) to perform transesterification, followed by intramolecular substitution of the cyano group, yielding the fused lactones (III) or (VI) as the main products.
ChemInform Abstract: Formation of Heterocyclic Hazardous Compounds by Thermal Degradation of Organic Compounds.
Authors: BIENIEK D. , BAHADIR M. , KORTE F.
Published: May 2016

2,4,6‐Tribromophenol undergoes cyclization reaction upon thermolysis at 800°C, producing tetrabromodibenzodioxins, the structures of which are not defined.
ChemInform Abstract: 1,3‐Dipolar Cycloaddition of Diazomethane to Azolopyridazines. The Synthesis of Isomeric 7‐Methyl‐7H‐ and 8‐Methyl‐8H‐pyrazolo(4,3‐d)azolopyridazines.
Authors: MERSLAVIC M. , PETRIC A. , ROZMAN D. , STANOVNIK B. , TISLER M.
Published: May 2016

The products (III) and (IV) of a 1,3‐dipolar cycloaddition of the components (I) and (II) react with corresponding nucleophiles (V) to give the title compounds (VI) or (VII).
ChemInform Abstract: Diazapolycyclic Compounds. Part 28. Reaction of Acetylated Terpenoids with Diazaquinones.
Authors: GOMEZ CONTRERAS F. , LORA‐TAMAYO M. , SANZ A.
Published: May 2016

The enol acetate (III) of carvone (I) undergoes cycloaddition reaction with diazaquinones, prepared from the cyclic hydrazides (IV) by oxidation, to give the fused pyridazinediones (V).
ChemInform Abstract: Benzimidazole Condensed Ring Systems. Part 4. New Approaches to the Synthesis of Substituted Pyrimido(1,6‐a)benzimidazole‐1,3(2H,5H)‐diones.
Authors: BADAWEY E.‐S. A. M. , RIDA S. M. , SOLIMAN F. S. G. , KAPPE T.
Published: May 2016

The novel title compounds (III) are prepared by condensation of the benzimidazoles (I) with ethoxycarbonyl isocyanate (II).
ChemInform Abstract: An Unexpected Aminolysis in the Synthesis of 5‐Substituted 3‐(1H‐Tetrazol‐5‐yl)pyrazolo(1,5‐a)quinazolines.
Authors: PEET N. P.
Published: May 2016

The pyrazolo(1,5‐a)quinazolines (V) are prepared as given in the scheme.
ChemInform Abstract: Heterocyclic Photorearrangements‐Photoinduced Rearrangements of Some 3‐Aroylamino‐5‐methyl‐1,2,4‐oxadiazoles.
Authors: BUSCEMI S. , VIVONA N.
Published: May 2016

Photolysis of the 5‐benzamido‐1,2,4‐oxadiazoles (I) leads to the formation of the quinazolinones (II).
ChemInform Abstract: 6‐Aza‐5,8,10‐trideaza Analogues of Tetrahydrofolic Acid and Tetrahydroaminopterin: Synthesis and Biological Studies. Part 38.
Authors: ROSOWSKY A. , BADER H. , MORAN R. G. , FREISHEIM J. H.
Published: May 2016

Starting from the pyrido(4,3‐d)pyrimidinone (I) the derivatives (V) and (VIII) are prepared via their key intermediates (III) and (VII), respectively.
ChemInform Abstract: Cyclization Reactions of 3‐Hydrazino(1,2,4)triazino(5,6‐b)indole.
Authors: ABDEL‐LATIF F. F. , SHAKER R. M. , MAHGOUB S. A. , BADR M. Z. A.
Published: May 2016

The title compound (Ia) is converted to the azide (Ib) as well as to various heterocycles such as (III), (IV), (VIII), (XI), (XII), (XV) and (XVII) by the routes shown in the scheme.
ChemInform Abstract: Synthesis of 1‐Hydroxy‐7‐azatricyclo(6.3.1.02,7)dodecan‐9‐ones: Potential Intermediates for the Total Synthesis of Securinines.
Authors: COTE R. , BOUCHARD P. , COUTURE Y. , FURSTOSS R. , WAEGELL B. , LESSARD J.
Published: May 2016

p‐Methoxyphenol (I) is converted into the cyclic acetal carbamate (II) which eliminates methanol to give the enol ethers (III).
ChemInform Abstract: Syntheses of 3‐Cyano‐2H‐thiin S‐Imines and Ylides and Their Base‐Promoted Rearrangement.
Authors: MOTOKI S. , TAKAHASHI N. , EGUCHI K. , SAITO T.
Published: May 2016

The 2H‐thiins (I) react with chloramine T (II) to give the sulfilimines (III) which are rearranged and degraded in the presence of DBU, forming the fused 3‐cyanopyridines (IV).
ChemInform Abstract: Synthesis of Tetraorganosilanes Containing a Benzo(b)thiophene Fragment.
Authors: POLOSIN V. M. , ASTAKHOV A. A. , IVASHCHENKO A. V. , RYASHENTSEVA M. A. , BELANOVA E. P. , SHASHKOV A. S. , MINACHEV KH. M.
Published: May 2016

Benzo(b)thiophene (I) is lithiated and subsequently coupled with the chlorosilanes (II) or (VI) to give the tetraorganosilanes (III) or (VII).
ChemInform Abstract: Silicon Compounds with Strong Intramolecular Steric Interactions. Part 36. A Bicyclic Disilane from the Reaction of 1,2‐Dichlorotetramesityldisilane with Lithium tert.‐Butylamide.
Authors: WEIDENBRUCH M. , PAN Y. , PETERS K. , VON SCHNERING H. G.
Published: May 2016

Treatment of the disilane (I) with an excess Li tert.‐butylamide (II) gives the 4b,9b‐disilaindeno(2.1‐a)indene derivative (III) whose 1H and 13C NMR spectra in solution show a hindered rotation about the Si‐C(mesityl) bonds even at high temperatures.
ChemInform Abstract: Strained Ring Compounds of Silicon and Germanium.
Authors: WEIDENBRUCH M. , SCHAEFER A. + , GRIMM F.‐T. , THOM K.‐L.
Published: May 2016

The di(tert‐butyl)silicon(germanium) diiodides (I) are treated with lithium naphthalenide to give the three‐membered rings (II).
ChemInform Abstract: Cyclosilazanes Reactions and Interconversions.
Authors: KLINGEBIEL U.
Published: May 2016

Anionic rearrangements of cyclosilazanes are known.
ChemInform Abstract: Di‐ and Trimethylene‐Bridged Diphosphorus(III) Compounds: Synthesis and Reaction with Hexafluoroacetone.
Authors: WEFERLING N. , SCHMUTZLER R.
Published: May 2016

The methylene‐bridged diphosphorus(III) compounds (V), (IX), and (XII) are synthesized in a sequence of reactions as shown in the scheme.
ChemInform Abstract: Synthesis of Heterocycles with Phosphorus‐Phosphorus Bond: Reactions of Phosphano‐Substituted Cyano(triphenylphosphoranylidene)methanes with Dichloroorganylphosphines.
Authors: GRUETZMACHER H. + , PRITZKOW H.
Published: May 2016

The reaction of the phosphinyl‐substituted cyano(triphenylphosphoranylidene)methanes (III) and (V), synthesized as shown, with dichloroorganylphosphines such as (II) and (VII) in the presence of NaBH4 or AlCl3 leads to the new heterocycles of the type (VI) and (VIII) in high yields.
ChemInform Abstract: Reactions of Aminophosphazenes (P‐NH2) with and without Rearrangement.
Authors: FINCHAM J. K. , SHAW R. A.
Published: May 2016

Reaction of the 1,1‐diaminotetrachlorophosphazene (I) with the alkoxides (II) in the corresponding alcohols gives the rearranged products (III), while in pyridine, the unrearranged diaminotetraalkoxy derivatives (IV) are formed.
ChemInform Abstract: Structure and Reactivity of 2‐Hydroxyiminobenzyl‐2‐oxo‐4,4,5,5‐tetramethyl(1,3,2)dioxaphospholanes.
Authors: BREUER E. , KARAMAN R. , GIBSON D. , GOLDBLUM A.
Published: May 2016

The benzoylphospholane (I) reacts with hydroxylamine (II) to produce the E‐oxime (III) and benzonitrile (VI).
ChemInform Abstract: Hydrotelluration of Acetylenes: Synthesis of Vinylic Tellurides, Divinyl Tellurides, and 1‐(Organyltelluro)‐1,3‐butadienes.
Authors: BARROS S. M. , DABDOUB M. J. , DABDOUB V. M. B. , COMASSETO J. V.
Published: May 2016

Organyltellurols generated in situ by NaBH4 reduction of diorganyl ditellurides react with acetylenes in refluxing ethanol to give vinylic tellurides of Z configuration.
ChemInform Abstract: Synthesis and Characterization of Diallyl Telluride and Allyl Methyl Telluride.
Authors: HIGA K. T. , HARRIS D. C.
Published: May 2016

The title compounds (III) and (VII) are prepared as shown and characterized by 1H, 13C, and 125Te NMR, IR, and UV spectroscopy.
ChemInform Abstract: A Convenient Method of Synthesis of Dialkyl Tellurides and Dialkyl Ditellurides.
Authors: FERREIRA J. T. B. , DE OLIVEIRA A. R. M. , COMASSETO J. V.
Published: May 2016

Tellurium (I) is converted to the dialkyl tellurides (V) by treatment with sodium hydroxide (II) and two equivalents of thiourea dioxide in aqueous tetrahydrofuran, followed by reaction of the intermediate disodium telluride (III) with the alkyl halides (IV) in the presence of a phase‐transfer catalyst.
ChemInform Abstract: Synthesis of Bis(trifluoromethyl)phenylthallium and Bis(trifluoromethyl)thallium Acetate. Oxidative Trifluoromethylation with Bis(trifluoromethyl)thallium(III) Compounds.
Authors: NAIR H. K. , MORRISON J. A.
Published: May 2016

The possibility of utilizing the easily prepared title Tl compounds (III) and (V) in oxidative trifluoromethylation reactions is screened by employing several classic low‐valent metallic species as substrate.
ChemInform Abstract: Heterometallic Binuclear Complexes. Part 1. Reactive Zr(IV)‐M(0) Compounds (M: Cr, Mo, W) with Bridging Diphenylphosphinocyclopentadienide Ligands.
Authors: SCHENK W. A. , LABUDE C.
Published: May 2016

The binuclear complexes (III) are synthesized according to the scheme and characterized by elemental analysis, spectral data (IR, 31P NMR), and chemical reactions.
ChemInform Abstract: Thermal Decomposition of Organotin Sulfamates: A One‐Pot Synthesis of Vinyltributyltin Compounds.
Authors: RATIER M. , KHATMI D. , DUBOUDIN J. G. , MINH D. T.
Published: May 2016

Methoxycarbonylsulfamoyl chloride (III), prepared from chlorosulfonyl isocyanate (I), is converted to the inner salt (V) which reacts with the α‐stannyl alcohols, generated from the ketones (VI) and tributylstannylmagnesium chloride (VII), to produce the intermediate stannyl sulfamates (VIII).
ChemInform Abstract: The Synthesis of Phosphino‐, Arsino‐, and Stibino‐Substituted Sulfur Diimide Heterocycles in Transition Metal Complexes.
Authors: HERBERHOLD M. , SCHAMEL K. , GIEREN A. , HUEBNER T. +
Published: May 2016

Coupling of the phosphino complex (Ia) with the sulfur diimide dipotassium salt (II) forms the six‐membered ring (IIIa), while in the same reaction with the stibino complex (Ic), only the eight‐membered ring (IVc) is produced.
ChemInform Abstract: Addition of Organometallic Nucleophiles to Coordinated 1,3‐Dienes, Trimethylenemethane, and Cycloheptatrienyl: Heterobimetallic Carbonyl Molybdenum Rhenium Complexes with σ,π‐C4 and ‐C7 Hydrocarbon Bridges.
Authors: MUELLER H.‐J. + , NAGEL U. , STEIMANN M. , POLBORN K. , BECK W.
Published: May 2016

As demonstrated with the diene derivatives (I), the addition of organometallic nucleophiles to cyclopentadienyldicarbonyl molybdenum compounds of dienes, cyclopentadiene, cyclohexadiene and trimethylenemethane gives the heterobimetallic η1:η3‐hydrocarbon‐bridged complexes (III)‐(V).
ChemInform Abstract: A Metal Pentadienyl Prepared by Reacting a Metal Carbyne with an Enyne.
Authors: SIVAVEC T. M. , KATZ T. J. , CHIANG M. Y. , YANG G. X.‐Q.
Published: May 2016

Combining the enyne (I) with the tungsten carbyne (II), a metal pentadienyl compound (III) is obtained which unlike essentially all isolable metal pentadienyl has a sickle shape, crystallizing in P1 with Z=2.
ChemInform Abstract: Methylthiovinyl as a New Ligand ‐ Deprotonation of Dicarbonyl(η5‐cyclopentadienyl)(η2‐methyl(methylthio)carbene)tungsten Tetrafluoroborate.
Authors: KREISSL F. R. , ULLRICH N.
Published: May 2016

Triethylamine deprotonates the C‐methyl group in (I) affording the neutral, diamagnetic methylthiovinyl complex (II).
ChemInform Abstract: Stability Range of Heterometal Cubane‐Type Clusters MFe3S4: Assembly of Double‐Cubane Clusters with the ReFe3S4 Core.
Authors: CIURLI S. , CARNEY M. J. , HOLM R. H. , PAPAEFTHYMIOU G. C.
Published: May 2016

The stability range of the cubane‐type title clusters hitherto only is tested by those with M=V and is now extended with implications for the stabilities of as yet unrealized clusters.
ChemInform Abstract: Protonation of the 1,1‐Dithiolene Ligands in the (Cu8(L)6)4‐ Cubanes (L: (S2C=C(COOR)2)2‐) and Synthesis of the (Cu8(L)6‐n(H‐L)n)‐(4‐n) Clusters. Synthesis and Structural Characterization of the (Cu10(H‐L)6(L)2) Decanuclear Cluster.
Authors: COUCOUVANIS D. , SWENSON D. , BAENZIGER N. C. , PEDELTY R. , CAFFERY M. L. , KANODIA S.
Published: May 2016

Addition of 1, 2, or 3 equiv. of acid to MeCN solutions of the cubane cluster complexes (I) results in formation of protonated complexes (II) which are isolated as crystalline tetraarylphosphonium or tetraalkylammonium salts.
ChemInform Abstract: Methyl Difluoroacetate Copper Reagent. Remarkable Solvent Effect on the 19F NMR Spectrum, Stability, and Reactivity.
Authors: KITAGAWA O. , TAGUCHI T. , KOBAYASHI Y.
Published: May 2016

The reagent (III) mentioned in the title is generated from the iododifluoroacetate (I) and copper (II) in various aprotic solvents and then treated with the bromides (IV) to form the substituted acetates (V).
ChemInform Abstract: Bridging Rather Than Chelation in the Substitution Chemistry of the Osmium(I) Complex (Os2(MeCO2)2(CO)6) with Potentially Chelating Phosphines and Arsines.
Authors: DEEMING A. J. , NUEL D. , RANDLE N. P. , WHITTAKER C.
Published: May 2016

Reaction of (I) with an excess of diarsine gives the disubstituted complex (IIIa), similarly the reactions with diphosphines leads to (IIIb) and (IIIc).
ChemInform Abstract: New Metallacyclic Compounds of Rhodium, Molybdenum, and Germanium Derived from Novel Heterodifunctional P‐N Ligands.
Authors: CAVELL R. G. , KATTI K. V.
Published: May 2016

The new ligands (III) are produced by oxidation of the phosphanes (I) with the azide (II).
ChemInform Abstract: Unusual Reactions of Steroidal and Non‐Steroidal 1,5‐Dioximes. Stereochemistry and Mechanism of Formation of N‐Hydroxypiperidine Analogues.
Authors: PRADHAN S. K. , AKAMANCHI K. G. , DIVAKARAN P. P. , PRADHAN P. M.
Published: May 2016

Reduction of 4,5‐secocholestane‐3,5‐dione dioxime (I) with sodium borohydride results in cyclization to yield the N‐hydroxymethylazacholestanes (II) and (III).
ChemInform Abstract: Synthesis, Structure, and Reactions of Secosteroids Containing a Medium‐Sized Ring. Part 27. New Types of Steroidal Isoxazolidines.
Authors: MIHAILOVIC M. LJ. , LORENC L. , RAJKOVIC M. , JURANIC I. , MILOVANOVIC A.
Published: May 2016

The secosteroids (I) and (VI) undergo cycloaddition reaction with N‐methylhydroxylamine hydrochloride (II), forming the isoxazolidines (III), (IV), and (VII).
ChemInform Abstract: Synthesis and Structural Characteristics of Hydroxyethylglycosylamines.
Authors: LAPENKO V. L. , SIROTKINA G. G. , SUNTSOVA N. S. , VOISHCHEVA O. V. , SLIVKIN A. I.
Published: May 2016

D‐Glucose (I) reacts with hydroxyethylamine (II) to give the glucosamine (III).
ChemInform Abstract: Studies on Nucleosides. Part 20. Synthesis and Antileishmanial Activity of 4,6‐Substituted Pyrazolo(3,4‐d)pyrimidine Nucleosides.
Authors: HASAN A. , TRIPATHI R. P. , PRATAP R. , BHAKUNI D. S. , PAL R. , MISHRA A. , GURU P. Y. , KATIYAR J. C.
Published: May 2016

A series of title nucleosides are prepared following known procedures and tested for their antileishmanial activity.
ChemInform Abstract: Microbial Synthesis of Optically Pure α‐Methoxy‐α‐trifluoromethyl‐α‐phenylacetic Acid.
Authors: OHTA H. , MIYAMAE Y. , KIMURA Y.
Published: May 2016

The key step in the synthesis of the chiral acid (R)‐(VIII) mentioned in the title is the enantioselective hydrolysis of the racemic nitrile (±)‐(IV) using Bacillus coagulans.
ChemInform Abstract: The LPCVD of Silicon Oxide Films Below 400 °C from Liquid Sources.
Authors: HOCHBERG A. K. , O'MEARA D. L.
Published: May 2016

The applicability of various organosilane compounds such as alkyl‐ and alkoxysilanes, ethoxy‐ and acetoxysilanes, and cyclic siloxanes as SiO2 sources for the preparation of high quality deposits below 400 °C is studied.
ChemInform Abstract: Protonated Nitric Acid. Experimental Evidence for the Existence of Two Isomers.
Authors: CACACE F. , ATTINA M. , DE PETRIS G. , SPERANZA M.
Published: May 2016

The protonization of HNO3 by H3+, CH5+, and H3O+ is studied by Fourier‐transform (FT‐ICR) and chemical ionization (CI) mass spectrometry.
ChemInform Abstract: Structure of Tin Hafnium Sulfide and Lead Hafnium Sulfide.
Authors: WIEGERS G. A. , MEETSMA A. , HAANGE R. J. , DE BOER J. L.
Published: May 2016

SnHfS3 (I) and PbHfS3 (II) both crystallize in the orthorhombic space group Pnma with Z=4.
ChemInform Abstract: Nd1.5Sr0.5(Cu,Al)O4 (I) and Nd2(Cu,Ni)O4 (II), a Contribution About the Coordination of Cu2+ Positions.
Authors: MUELLER‐BUSCHBAUM HK. + , HARNEIT O.
Published: May 2016

Single crystals of the title compounds are synthesized by solid state reactions, starting from Nd2O3, SrCO3, and CuO in the case of (I) (950‐1400 °C, corundum crucible) or Nd2O3, CuO, and Ni‐oxalate in the case of (II) (2:1:1, 1250 °C), followed by slow cooling.
ChemInform Abstract: Jahn‐Teller Distortion in the Crystal Structures of the Disodium‐tetrafluorometallates Na2CuF4 and Na2CrF4.
Authors: BABEL D. , OTTO M.
Published: May 2016

The isotypic monoclinic title fluorides, which belong to the space group P21/c with Z=2, are Jahn‐Teller distorted variants of the orthorhombic Sb2PbO4 type (Pbam, the parent group of P21/c).
ChemInform Abstract: Complexation in TlCl3 and Chlorothallate(III) Melt Systems.
Authors: BROCKNER W. , ALEXIOU V. , SOMER M.
Published: May 2016

The Raman spectra of TlCl3 at various temp. in the solid and molten state confirm that this chloride starts to decompose already at 40‐50 °C to give TlCl and Cl2.
ChemInform Abstract: Preparation and Crystal Structure of Na2PdCl4.
Authors: SCHROEDER L. + , KELLER H.‐L.
Published: May 2016

Single crystals of the title compound are obtained by slow cooling (1 °C/h) a NaCl/PdCl2 melt from 670 °C to 320 °C. Na2PdCl4 crystallizes in the tetragonal space group P4/ncc with Z=4.
ChemInform Abstract: The Valence Change Induced by Hydrogen Absorption in CeRu2: A High‐Pressure Investigation.
Authors: MIRAGLIA S. , ANNE M. , VINCENT H. , FRUCHART D. , LAURANT J. M. , ROSSIGNOL M.
Published: May 2016

The influence of hydrogen absorption on the structural properties of CeRu2 is studied by electron microscopy and high‐pressure XRD.
ChemInform Abstract: Specimen Size Effect of the Thermal Diffusivity/Conductivity of Aluminum Nitride.
Authors: HASSELMAN D. P. H. , MERKEL G. A.
Published: May 2016

The thermal diffusivity and thermal conductivity of AlN, measured by the laser‐flash technique, decrease with decreasing thickness of the specimen.
ChemInform Abstract: The Nature of Selenium Dissolved in Hydrobromic Acid Containing Selenium Dioxide.
Authors: MILNE J.
Published: May 2016

The solubility of Se0 in HBr solutions containing SeO2 is studied for 8.72 M and 4.8 M HBr solutions.
ChemInform Abstract: Reaction of Zirconia with Silica at the Stoichiometry of Zircon.
Authors: TRAPPEN K. M. , EPPLER R. A.
Published: May 2016

A method is developed that allows the production of zircon, ZrSiO4, in an oxygen‐free environment.
ChemInform Abstract: Preparation and Crystal Structure of Cs4Sn2Se6.
Authors: SHELDRICK W. S. , BRAUNBECK H. G.
Published: May 2016

The title selenostannate (III), obtained for the first time by methanolothermal reaction according to the scheme, crystallizes in the monoclinic system, space group C2/m, Z=2.
ChemInform Abstract: Practical Enantioselective Diels‐Alder and Aldol Reactions Using a New Chiral Controller System.
Authors: COREY E. J. , IMWINKELRIED R. , PIKUL S. , XIANG Y. B.
Published: May 2016

Various optically active 1,2‐diamino‐1,2‐diphenylethane derivatives such as (I) or (II) are prepared via optical resolution of the parent 1,2‐diamino‐1,2‐diphenylethane and subsequent bissulfonylation and cyclization using AlMe3 or BBr3.
ChemInform Abstract: A Practical and Efficient Method for Enantioselective Allylation of Aldehydes.
Authors: COREY E. J. , YU C.‐M. , KIM S. S.
Published: May 2016

The readily available and easily recoverable (R,R)‐ or (S,S)‐1,2‐diamino‐1,2‐diphenylethane controller group in the allylboranes (I) or (IV) allows the enantioselective allylation of aldehydes such as (II).
ChemInform Abstract: Intramolecular Cycloaddition Reactions with Isobenzofurans. Part 7. Synthesis of rac. Thiafarfugin A, a Thiophene Analogue of a Naturally Occurring Furanosesquiterpene.
Authors: SCHOENING A. + , FRIEDRICHSEN W.
Published: May 2016

It is shown that the intramolecular Diels‐Alder reaction of 4‐alkenylthieno(2,3‐c)furans yielding anellated benzo(b)thiophenes takes place as well in the case of 6‐alkenyl analogues.
ChemInform Abstract: Cyclodimerization of 1‐(Dimethoxymethyl)‐5,6‐dimethylidene‐7‐oxabicyclo(2.2.1)hept‐2‐ene Induced by Nonacarbonyldiiron. Crystal Structure of (1RS,2SR,3RS,4RS,4aRS,9aSR)‐Tricarbonyl(C,2,3,C‐η‐(1,4‐epoxy‐1,5‐bis(dimeth# oxymethyl)‐2,3‐dimethylidene‐1,2,3,4,4a,9,9a,10‐octahydroanthracene))iron.
Authors: BONFANTINI E. , VOGEL P. , PINKERTON A. A.
Published: May 2016

The transition metal carbonyl induced cyclodimerization of 5,6‐dimethylene‐7‐oxabicyclo(2.2.1)hept‐2‐ene is strongly affected by substitution at C‐1. While the 1‐hydroxymethyl derivative does not undergo (4 + 2) cyclodimerization in the presence of Fe2(CO)9 (II) in MeOH, the 1‐dimethoxymethyl derivative (I) reacts with formation of a 1,7:1 mixture of the trans (IIIa), (IVa), (Va) vs.
ChemInform Abstract: Generation and Rearrangement of Unsaturated Hydrocarbons from Flash Vacuum Pyrolysis of Dichlorocyclopropanes at 850°C.
Authors: HSU Y. H. , GUZMAN M. , JELLINEK M. , LANDGREBE J. A.
Published: May 2016

Flash vacuum pyrolysis of the C5‐substituted 1,1‐dichlorocyclopropanes (I) gives benzene (II) and toluene (III) as the main products.
ChemInform Abstract: Cyclizations of Hydroxy Dithioketals. New Synthetic Technology for the Construction of Oxocenes and Related Medium‐Ring Systems.
Authors: NICOLAOU K. C. , PRASAD C. V. C. , HWANG C.‐K. , DUGGAN M. E. , VEALE C. A.
Published: May 2016

Ag+‐induced ring closure of the hydroxy dithioketal (III) affords the oxacene (IV).
ChemInform Abstract: Activation of 6‐Endo Over 5‐Exo Hydroxy Epoxide Openings. Stereoselective and Ring Selective Synthesis of Tetrahydrofuran and Tetrahydropyran Systems.
Authors: NICOLAOU K. C. , PRASAD C. V. C. , SOMERS P. K. , HWANG C.‐K.
Published: May 2016

A stereo‐ and regioselective opening of hydroxy epoxides such as (I) or (IV), some of which are optically active, by acid catalysis leading to tetrahydrofurans and tetrahydropyrans is described.
ChemInform Abstract: Photochemical Cleavage of Carbonate in Cp*Rh(CO3)·2 H2O.
Authors: HENARY M. , KASKA W. C. , ZINK J. I.
Published: May 2016

Irradiation of the title complex (I) at 351 nm leads to photochemical cleavage of the carbonate ligand to form CO2 and a metal‐oxo intermediate which reacts with the starting material to produce the dimer complex (II).
ChemInform Abstract: Evidence for Exchange Processes Associated with the Hydrogenation of Methyl (Z)‐α‐Acetamidocinnamate by a Silica‐Bound Chiral Dirhodium Catalyst.
Authors: EISEN M. , BLUM J. , HOEHNE G. + , SCHUMANN H. , SCHWARZ H.
Published: May 2016

The initially high optical purity of the ester (II) is found to decrease during the hydrogenation and increasing amounts of racemic product is observed.
ChemInform Abstract: Chiral Synthesis via Organoboranes. Part 22. Selective Reductions. Part 44. The Effect on the Steric Requirements of the Alkyl Substituent in Isopinocampheylalkylchloroboranes for the Asymmetric Reduction of Representative Ketones.
Authors: BROWN H. C. , SREBNIK M. , RAMACHANDRAN P. V.
Published: May 2016

Hydroboration of α‐pinene (I) with the alkylboranes (II) followed by reaction with hydrogen chloride gives the isopinocampheylalkylchloroboranes (IIIa) ‐ (IIIc).
ChemInform Abstract: Synthesis of Branched Long Chain Aliphatic Primary Alkyl Bromides.
Authors: KATRITZKY A. R. , BIENIEK A. , CHIANG L.
Published: May 2016

Reaction of the secondary bromides (I) with allylmagnesium chloride (II) yields the olefins (III) which are hydroborated to give the alcohols (IV).
ChemInform Abstract: An Anionic (3 + 2)Cyclization‐Elimination Route to Cyclopentenes.
Authors: BEAK P. , BURG D. A.
Published: May 2016

2‐(Bromomethyl)acrylic acid (I) is converted to the 3‐(toluenesulfonyl)‐2‐methylenepropanamides (V) by standard procedures.
ChemInform Abstract: Carbanions. Part 24. Rearrangements of E‐ and Z‐2,2‐Diphenyl‐3‐pentenyl Alkali Metal Compounds.
Authors: GROVENSTEIN E. JUN. , BLACK K. W. , GOEL S. C. , HUGHES R. L. , NORTHROP J. H. , STREETER D. L. , VANDERVEER D.
Published: May 2016

Cleavage of the ethers (I) followed by chloromethylation yields the isomeric chloropentenes (III).
ChemInform Abstract: Synthesis of Bicyclic and Tricyclic Enones via Regioselective Dialkylation of Cyclic 1,3‐Diketone‐dimethylhydrazones with 4‐Chlorobutan‐2‐one.
Authors: DEMIR A. S. , ENDERS D.
Published: May 2016

In connection with the work on the synthesis of taxodione C and quassinoids such as similikalactone D five 1,3‐diones such as dimedone, 2‐ethylcyclopentan‐1,3‐dione or (I) are transformed to their enehydrazinones such as (III) which are all regioselectively dialkylated by chlorobutanone (IV) to give derivatives such as (V).
ChemInform Abstract: Cyclization of 1,5‐Hexadien‐3‐ols. Obtention of Chlorooctalins, Octalones and Hexahydro‐azulenones from Allylpulegols.
Authors: EL IDRISSI M. , SANTELLI M.
Published: May 2016

The chlorooctalins (II) are used for the preparation of the octalones (V), (VI), (VIII) and the hexahydroazulenone (X).
ChemInform Abstract: Diastereoface Selectivity During Phthalimidonitrene Additions to (E)and (Z)‐Configurated α,β‐Unsaturated Esters, Induced by a Chiral Center in the γ‐Position.
Authors: CHILMONCZYK Z. , EGLI M. , BEHRINGER C. , DREIDING A. S.
Published: May 2016

In situ generated phathalimidonitrene is added to some α,β‐unsaturated esters such as (I), (V), or (VIII) containing a chiral sec. O‐function at C‐γ.
ChemInform Abstract: A Short Route to 2,3‐Bis(methylene)‐7‐oxabenzonorbornenes.
Authors: LUO J. , HART H.
Published: May 2016

Diels‐Alder reaction of the endoxides (I) with the cyclopentadienone (II) gives the adducts (III), precursors of the corresponding isobenzofurans.
ChemInform Abstract: Transannular Interaction in 3‐Heterobicyclo(3.3.0)octanes, Implications for the Mechanism of Biotin Action.
Authors: BERKESSEL A.
Published: May 2016

Starting with the bicyclic ketones (I), which are dideaza analogues of biotin, the endo/exo‐tosylates (V) and (VI), the endo‐tertiary alcohols (VIII), and the exo‐chlorides (IX) are prepared by standard procedures.
ChemInform Abstract: Aminoalkylation of Aldehydes with Glyoxal N,N‐Dimethylmonohydrazone Yields Stable 4‐Substituted Pyrrolin‐3‐ones.
Authors: ZINOUNE A. , BOURGUIGNON J.‐J. , WERMUTH C. G.
Published: May 2016

Reaction of glyoxal N,N‐dimethylmonohydrazone (II) with the aldehydes (I) in the presence of morpholine (III) yields the pyrroles (IV), the pyrrolinone (V), or the hydrazone (VII).
ChemInform Abstract: Synthesis and Pharmacological Evaluation of Some New 1‐(2‐Aryl‐3‐indolylmethyleneamino)‐3‐(aryloxyacetamido)guanidines.
Authors: HUSAIN M. I. , JAMALI M. R. , SRIVASTAVA R. C.
Published: May 2016

Fifteen title compounds of type (VI) are prepared as shown for (VIa).
ChemInform Abstract: Chemical Reactions of Omeprazole and Omeprazole Analogues. Part 6. The Reactions of Omeprazole in the Absence of 2‐Mercaptoethanol.
Authors: BRAENDSTROEM A. + , LINDBERG P. , BERGMAN N.‐A. , GRUNDEVIK I. , TEKENBERGS‐HJELTE L. , OHLSON K.
Published: May 2016

In HCl‐acidic solution the sulfenamide (II) (derived from omeprazole) decomposes by a first‐order reaction to give (I) and by a competitive second‐order process that leads to (IV).
ChemInform Abstract: Synthesis and Biological Activity of 2‐(4‐Aryl‐2‐thiazolylamino)benzothiazoles/benzoxazoles/benzimidazoles/imidazolidines.
Authors: KHAN R. H. , RASTOGI R. C.
Published: May 2016

The title compounds (VI), (VIII) and (X) as well as their common precursors (IV) are tested for their antifungal and antibacterial activity.
ChemInform Abstract: Preparation of Piperidines from δ‐Chloroimines.
Authors: SULMON P. , DE KIMPE N. , SCHAMP N.
Published: May 2016

The reaction of δ‐chloroimines such as (I) with various nucleophiles, e.g. (II) (or e.g. LiAlH4, MeOH), gives rise to piperidine derivatives such as (III).
ChemInform Abstract: Synthesis of Side‐Chain Derivatives of 2,2′‐Bipyridine.
Authors: DELLA CIANA L. , HAMACHI I. , MEYER T. J.
Published: May 2016

Starting with 4,4'‐dimethyl‐2,2'‐bipyridine (I), several side‐chain derivatives are synthesized as outlined in the reaction scheme.
ChemInform Abstract: Synthesis of 6‐Aryl‐4‐hydroxypiperidin‐2‐ones and a Possible Application to the Synthesis of a Novel HMG‐CoA Reductase Inhibitor.
Authors: ASHTON M. J. , HILLS S. J. , NEWTON C. G. , TAYLOR J. B. , TONDU S. C. D.
Published: May 2016

The diesters (II), prepared from the aldehydes (I) as starting materials, undergo intramolecular cyclization to form the dioxopiperidinecarboxylates (IV) which are hydrolyzed and decarboxylated, producing the dioxopiperidines (V).
ChemInform Abstract: The First Synthesis of Thieno(c)isoquinolines and an Improved Synthesis of Phenanthridine and Thieno(c)quinolines Through Pd(0)‐Catalyzed Coupling of ortho‐Formylarylboronic Acids with Functionalized Aryl Halides.
Authors: YANG Y. , HOERNFELDT A.‐B. + , GRONOWITZ S.
Published: May 2016

Coupling of the 2‐formylbenzeneboronic acid (III) with the carbamates (II), (IV), (VII) yields the hitherto unknown isomeric thienoisoquinolines (I), (V), or (VI).
ChemInform Abstract: Synthesis of Triazolo‐ and Tetrazoloquinoline Derivatives with Antithrombotic Activity.
Authors: DESOS P. , SCHLEWER G. , WERMUTH C. G.
Published: May 2016

The methylquinolinylhydrazine (IV), prepared from the methylquinolinone (I), is cyclized with trimethyl orthoformate (V) or sodium nitrite to give the fused methylquinolines (VIa) and (VIb).
ChemInform Abstract: 1,3‐Dipolar Cycloaddition of Diazomethane to Azolopyridazines. Synthesis of 8‐Methyl‐8H‐ and 9‐Methyl‐9H‐pyrazolo(3,4‐d)‐s‐triazolo(4,3‐b)pyridazine and 1‐Methyl‐1H‐ and 2‐Methyl‐2H‐imidazo(1,2‐b)pyrazolo(3,4‐d)pyridazine Derivatives.
Authors: MERSLAVIC M. , PETRIC A. , STANOVNIK B. , TISLER M.
Published: May 2016

The heterocycles (III) and (VIII) are synthesized starting from the known compounds (I) or (VI) via the intermediates (II) or (VII), respectively.
ChemInform Abstract: Reactions with Dimethyl Carbonate. Part 5. Methylation of the Pyrimidine Bases of Nucleic Acids.
Authors: JANSEN IN DE WAL H. , LISSEL M.
Published: May 2016

The methylation efficiency of dimethyl carbonate (IV) is examined because it is often used as a substitute of the highly dangerous dimethyl sulfate but nothing is known about the risks of (IV) itself.
ChemInform Abstract: Synthesis and Tautomeric Behavior of 3‐(Pyrazolylhydrazonomethyl)‐2‐oxo‐1,2‐dihydroquinoxalines. Specification of Hydrazone Imine and Diazenyl Enamine Forms.
Authors: KURASAWA Y. , KIM H. S. , YONEKURA K. , TAKADA A. , OKAMOTO Y.
Published: May 2016

The quinoxaline derivative (III) is found to exist as only one tautomer in DMSO‐d6, and the 1H NMR data of (III) allow the specification of two tautomeric forms of the previously synthesized compound (IV)/(V) in a ratio of 15:85.
ChemInform Abstract: Synthesis and Reactions of 2‐Amino‐7,8‐dimethoxy‐1H‐3‐benzazepines. Competitive Formation of 2‐Amino‐1H‐3‐benzazepines vs. 2‐Benzylimidazoles.
Authors: ROBEY R. L. , COPLEY‐MERRIMAN C. R. , PHELPS M. A.
Published: May 2016

On account of their anti‐hypertensive activity, a procedure for the synthesis of benzazepines of type (IV) and (VII) is developed which is shorter and more economical than two existing methods and uses readily available starting materials.
ChemInform Abstract: Bora‐Aromatic Systems. Part 10. Photochemical Generation of the Diphenylborate(I) Anion from Metal Tetraphenylborates(III) in Aprotic Media: Repudiation of a Contravening Claim.
Authors: EISCH J. J. , BOLESLAWSKI M. P. , TAMAO K.
Published: May 2016

Irradiation of sodium tetraphenylborate (I) generates the intermediate diphenylborate (II) via elimination of biphenyl (III).
ChemInform Abstract: Diethoxymethylphosphonites and Phosphinates. Intermediates for the Synthesis of α, β, and γ‐Aminoalkylphosphonous Acids.
Authors: DINGWALL J. G. , EHRENFREUND J. , HALL R. G.
Published: May 2016

The diethoxymethylphosphonate (I), its analogue (VI), and the phosphonite (III), prepared by known method or according to the scheme, are applied to the synthesis of several α‐, β‐, and γ‐aminoalkylphosphonous acids such as demonstrated for the examples (IX), (XII), and (XVa).
ChemInform Abstract: Highly‐Functionalized Aziridines. Part 2. A Facile Synthesis of Diethyl Aziridinylphosphonates and 2‐Chloroaziridinylphosphonates.
Authors: COUTROT P. , ELGADI A. , GRISON C.
Published: May 2016

Cyclocondensation of diethyl chloromethylphosphonate (I) with the aromatic aldimines (II) yields the aziridinylphosphonates (III) which are converted to the (2‐chloroaziridinyl)phosphonates (V) by lithiation and treatment with tetrachloromethane (IV).
ChemInform Abstract: 2‐Oxazolines (4,5‐Dihydrooxazoles) by Organoselenium‐Induced Cyclization of Allylic Ureas.
Authors: BETANCOR C. , LEON E. I. , PRANGE T. , SALAZAR J. A. , SUAREZ E.
Published: May 2016

Reaction of the β,γ‐unsaturated ureas (I), (IV), and (VII) with phenylselenenyl chloride (II) in the presence of silica gel results in cyclization, producing the Se‐substituted oxazolines (III), (V), and (VI) or the hexahydropyrimidone (VIII).
ChemInform Abstract: Oxidation of Organic Diselenides with Hydrogen Peroxide to Alkane‐ and Areneseleninic Acids and Selenium‐Containing Heterocycles.
Authors: KLOC K. , MLOCHOWSKI J. , SYPER L.
Published: May 2016

The oxidation of dialkyldiselenides and ortho‐substituted diaryldiselenides, e.g. (I) and (III), with H2O2 in MeCN, CH2Cl2 or CHCl3 at temp. between ‐15 and +20 °C affords corresponding seleninic acids such as (II) and (IV).
ChemInform Abstract: Organometallic Compounds of the Lanthanoids. Part 49. Trigonal‐Bipyramidal Lanthanoid Complexes Containing an Interstitial Oxygen Atom.
Authors: SCHUMANN H. , LEE P. R. , LOEBEL J.
Published: May 2016

Traces of water in the reaction mixture result in insertion of the O2‐ ion into the lanthanoids forming (V).
ChemInform Abstract: Reactions of Alkyl and Hydride Derivatives of Permethylzirconocene and Permethylhafnocene with Carbon Monoxide. Synthesis and Reactivity Studies of Aldehyde Complexes of Zirconium and Hafnium.
Authors: RODDICK D. M. , BERCAW J. E.
Published: May 2016

For the isovaleraldehyde complexes (IV) an isomeric structure with coordination to the C=O double bond is not ruled out.
ChemInform Abstract: Cleavage of Ligand in a Tc/Schiff Base System: An Unusual Reaction.
Authors: SPIES H. , PIETZSCH H.‐J.
Published: May 2016

The reaction of different Schiff bases (derived from the condensation of 2‐aminobenzenethiol with salicylic aldehyde, diacetyl and acetylacetone) with Tc gluconate in aqueous acetone at pH 11 in the presence of NBu4Br results in formation of the same complex (I) (yield ca. 60%).
ChemInform Abstract: Preparation and Chiroptical Properties of Optically Active Vinyl Ether‐Iron and Olefin‐Iron Complexes. A CD Quadrant Rule Correlating Absolute Configurations.
Authors: BEGUM M. K. , CHU K.‐H. , COOLBAUGH T. S. , ROSENBLUM M. , ZHU X.‐Y.
Published: May 2016

Reaction of the racemic iron complex (I) with (‐)‐menthol (II) leads to a diastereomeric mixture of the optically active vinyl alcohol‐iron complexes (III) and (IV), which are in rapid equilibrium resulting in partial dynamic resolution of the complexed olefin center.
ChemInform Abstract: Systematic Access to (M4(CO)12(μ4‐XY)) Clusters of the Butterfly Type.
Authors: BANTEL H. , HANSERT B. , POWELL A. K. , TASI M. , VAHRENKAMP H.
Published: May 2016

If the bridge‐ligand in corresponding trinuclear clusters is photochemically stable a photochemical cluster expansion reaction can be used as a route to the tetranuclear clusters (III), (IV) and (V) as demonstrated for (III).
ChemInform Abstract: ((Ph2PCH2C(CF3)2O)NiH(PCy3)): Indication of a Nickel Hydride Mechanism in Ethene Oligomerization.
Authors: MUELLER U. + , KEIM W. , KRUEGER C. + , BETZ P.
Published: May 2016

The reaction of the complex (I) with the phosphine (II) at 50 °C yields a catalyst system, which forms C4‐C30 olefins with ethene.
ChemInform Abstract: Dependence of Spectroscopic, Electrochemical, and Excited‐State Properties of Tris Chelate Ruthenium(II) Complexes on Ligand Structure.
Authors: KAWANISHI Y. , KITAMURA N. , TAZUKE S.
Published: May 2016

To develop efficient redox photosensitizers of the (tris(bipyridine)Ru)2+ type, twelve Ru complexes such as (I), containing structurally analogous diimine ligands such as 2,2'‐bipyridine, 1,10‐phenanthroline or (II)‐(VI) and derivatives of them, are prepared by refluxing RuCl2(DMSO)4 with an excess of ligand in EtOH (synthetic routes to the ligands are also given).
ChemInform Abstract: Synthesis and Structure of the Di‐(5,6‐dihydropyrimidino(5,4‐c)carbazole) Hexachloroplatinate(IV) Monohydrate.
Authors: VIOSSAT B. , NGUYEN‐HUY DUNG NGUYEN‐HUY DUNG , DARAN J. C. , LANCELOT J. C. , ROBBA M.
Published: May 2016

5,6‐Dihydropyrimidino(5,6‐c)carbazole dissolved in HCl reacts with K2PtCl4 in water to give the title complex (yield not given), which crystallizes in P21/m with Z=2.
ChemInform Abstract: Platinum Complexes of the Anions Se2N2‐ 2 and Se2N2H‐; X‐Ray Structure Analysis of (Pt(Se2N2H)(PMe2Ph)2)Cl.
Authors: KELLY P. F. , PARKIN I. P. , SLAWIN A. M. Z. , WILLIAMS D. J. , WOOLLINS J. D.
Published: May 2016

The Pt(II) complexes (III) and (IV) are main products of the equimolar reaction between the Pt dimer (I) and Se4N4 (II).