bluuebunny/crossref_metadata_2025 huggingface dataset:
ChemInform Abstract: Electrochemical and Photoelectrochemical Behavior of n‐GaAs and p‐GaAs in the Presence of H2O2.
Authors: BADAWY W. A. , PFUHL G. , PLIETH W. J.
Published: May 2016

H2O2 shifts the flatband potential of p‐GaAs to more cathodic values in acidic solution and to more anodic values in alkaline medium, while it does not affect the flatband potential of n‐GaAs.
ChemInform Abstract: Preparation and Properties of Aluminum Hydroxide. Part 2. Boehmite from Sodium Aluminate and Nitric Acid.
Authors: HILLE J. , WEINHOLD W. , BOLLMANN U. , BECKER K. , BREMER H. , VOGT F.
Published: May 2016

Mainly boehmite containing Al‐hydroxide is prepared by continuous precipitation from Na‐aluminate solutions with HNO3, under conditions similar to those applied in production.
ChemInform Abstract: Photochemistry of Some Extended π‐Systems: Type A and Aryl Rearrangements of Systems with Extended Conjugation Related to Cyclohexadienones and Cyclohexenones. Mechanistic and Exploratory Organic Photochemistry.
Authors: ZIMMERMAN H. E. , LAMERS P. H.
Published: May 2016

Formylation of the diphenylcyclohexenone (I) with ethyl formate (II) and subsequent ring closure reaction with methyl vinyl ketone (IV) yield the diphenyltetrahydronaphthalenone (V) after treatment with a base.
ChemInform Abstract: Studies on Samarium Diiodide Initiated Addition Reaction of Fluoroalkyl Iodides to Alkynes and Its Mechanism.
Authors: MA S. , LU X.
Published: May 2016

SmI2 is found to be an effective initiator in the addition of fluoroalkyl iodides such as (II) to the alkynes (I).
ChemInform Abstract: Synthesis of Syncarpic Acid and Related β‐Oxo δ‐Enol Lactone via Selective O‐ or C‐Acylation of Preformed Enolates.
Authors: BENBAKKAR M. , BALTAS M. , GORRICHON L. , GORRICHON J. P.
Published: May 2016

The keto forms (IX) and (X) of the title compounds are prepared from the β‐keto ester (III), derived from isobutyryl chloride (I) and ethyl isobutyrate (II), as shown in the reaction scheme.
ChemInform Abstract: (22)(1,5)Cyclooctatetraenophane.
Authors: PAQUETTE L. A. , KESSELMAYER M. A.
Published: May 2016

The successful preparation of the first member of the (2n)cyclophane series is described, which will differ intrinsically in chemical properties from structural counterparts in the (4n + 2) series.
ChemInform Abstract: A Stereoselective Route to 2‐(Phenylthio)‐1,3‐butadienes.
Authors: PEARSON W. H. , LIN K.‐C. , POON Y.‐F.
Published: May 2016

The phenylthio(trimethylsilyl)propadiene (III), prepared from the phenylthiopropyne (I) by silylation with trimethylsilyl chloride (II), reacts with 9‐borabicyclo(3.3.1)nonane (VI) in tetrahydrofuran to produce the allylborane (VII).
ChemInform Abstract: Synthesis of 1,4‐, 2,4‐, and 3,4‐Dimethylphenanthrenes: A Novel Deoxygenation of Arene 1,4‐Endoxides with Trimethylsilyl Iodide.
Authors: JUNG K. , KOREEDA M.
Published: May 2016

Cycloaddition reaction of furan (II) with dimethylnaphthynes, generated from the o‐bromotosylates (I) by treatment with butyllithium, leads to the formation of the 1,4‐endoxides (III) which are cleaved with trimethylsilyl iodide to give the dimethylphenanthrenes (IV).
ChemInform Abstract: Synthesis of (S)‐(+)‐2‐tert‐Butyl‐2‐methyl‐1,3‐benzodioxole‐4‐carboxylic Acid: A New Type Chiral Derivation Reagent for Amines and Alcohols.
Authors: NISHIDA Y. , OHRUI H. , MEGURO H.
Published: May 2016

3‐Methylpyrocatechol (I) reacts with methyl tert‐butyl ketone (II) to form the acetal (III).
ChemInform Abstract: Synthesis and Properties of 1,3‐Dithiole(3)‐ and (4)dendralenes, Acyclic Systems of the Corresponding (3)‐ and (4)Radialenes.
Authors: MISAKI Y. , MATSUMURA Y. , SUGIMOTO T. , YOSHIDA Z.
Published: May 2016

The dithioles (I) are formylated to give the monoaldehydes (III) which are olefinated with the corresponding P‐ylides (IV) to form the (3)dendralenes (V).
ChemInform Abstract: A New Synthesis of Thieno(3,2‐d)thiazole Derivatives.
Authors: AUGUSTIN M. , DOELLING W. + , KINDT P.
Published: May 2016

The thiazole derivatives (III), (VII), and (XI) are prepared according to literature instructions (DD‐WP 1985; Diss.
ChemInform Abstract: Reaction of Arylglyoxals with 2‐Amino Heterocycles.
Authors: ALCAIDE B. , PLUMET J. , SIERRA M. A. , VICENT C.
Published: May 2016

Reaction of the aminopyridines (II) or the aminopyrimidine (V) with the arylglyoxals (I) results in cyclization to give the imidazopyridiniumolates (III) and (IV) or the imidazopyrimidiniumolates (VI).
ChemInform Abstract: A New Synthesis of Pyrazinol(2,3‐c)isoquinolines.
Authors: BATES M.‐R. M. , DEADY L. W. , MACKAY M. F.
Published: May 2016

The cyclocondensation of (I) with the ketoester (II) proceeds regioselectively.
ChemInform Abstract: The Pyrolysis of 1,2,3,4,6,7‐Hexathia‐5,8‐diazocine
Authors: KUDO Y. , KIMURA T. , HAMADA S.
Published: May 2016

(1,4‐S6(NH)2) at 433 K yields S8, N2, and NH3 in a 0.75:0.66:0.66 molar ratio.
ChemInform Abstract: Study of the Stoichiometry of Intermediate Phases in the Gallium‐Magnesium System.
Authors: FESCHOTTE P. , YVON K.
Published: May 2016

The Ga‐Mg phase diagram is reinvestigated by XRD, thermal and electron microprobe analysis and the existence domains of the five binary phases Mg5Ga2, Mg2Ga, MgGa, MgGa2, and Mg2Ga5 are determined.
ChemInform Abstract: Characterization of CrO3‐Al2O3 Catalysts by Raman Spectroscopy.
Authors: OSKAM A. , STUFKENS D. J. , VUURMAN M. A.
Published: May 2016

The chromium oxide in Cr/Al2O3 catalysts, prepared by impregnation with chromic acid solutions and drying at 298 K under vacuum, is shown to be present as chromate monolayer at 1 wt.% Cr/Al2O3, as dichromate species between 5 and 15 wt.% Cr/Al2O3, as trichromate at 20 wt.% Cr/Al2O3, and as crystalline CrO3 and trichromate at 30 wt.% Cr/Al2O3.
ChemInform Abstract: New Ba6Ln2M3+ 4O15‐Type Compounds: Ba6Nd2Fe4O15, Ba5SrLa2Fe4O15, and Ba5SrNd2Fe4O15.
Authors: MEVS H. , MUELLER‐BUSCHBAUM HK. +
Published: May 2016

Single crystals of the title compounds are prepared by the CO2‐laser technique using stoichiometric mixtures of Ba(OH)2·8 H2O, Sr(OH)2·8 H2O, Ln2O3 (Ln: La, Nd), and FeC2O4·2 H2O as precursors.
ChemInform Abstract: Thiones as Superdipolarophiles.
Authors: HUISGEN R. , LANGHALS E.
Published: May 2016

The cycloaddition reaction of phenyldiazomethane (I) with various thioketones such as (II) to give thiiranes, e.g. (IV), via the thiadiazolines (III) is investigated kinetically.
ChemInform Abstract: Preparation of an Enantiomerically Enriched Allyllithium Derivative by Deprotonation via Kinetic Resolution.
Authors: ZSCHAGE O. , SCHWARK J.‐R. , HOPPE D.
Published: May 2016

Lithiation of the carbamate (±)‐(I) in the presence of (‐)‐sparteine (SPA) and subsequent addition of methoxycarbonyl chloride (II) proceeds with high enantioselectivity to give the optically pure (R)‐carbamate (I) and the (S)‐ester (III) together with some by‐products resulting from γ‐addition.
ChemInform Abstract: Mesolytic Fission of C‐C Bonds. A Comparison of Homolytic and Heterolytic Processes Within the Same Substrate.
Authors: MASLAK P. , NARVAEZ J. N.
Published: May 2016

Using the model substrate (I), all the four fission processes possible (homolytic, heterolytic, anio‐, and catio‐mesolytic) are studied kinetically and thermodynamically.
ChemInform Abstract: ESR Studies of Nitrogen‐Centered Free Radicals. Part 35. Reaction of a Thioaminyl Diradical with 7,7,8,8‐Tetracyanoquinodimethane (TCNQ). The Formation of a Cyclophane Compound.
Authors: MIURA Y. , OHANA T. , KUNISHI T.
Published: May 2016

Hydrazine‐like dimers (I) dissociate in solution and the resulting thioaminyl monoradicals (II) react with TCNQ (III) to give compounds (IV) which at higher temp. (benzene, 50 °C) dissociate into the starting materials.
ChemInform Abstract: Asymmetric Alkylation of N‐Acylsultams. A General Route to Enantiomerically Pure Crystalline C(α,α)‐Disubstituted Carboxylic Acid Derivatives.
Authors: OPPOLZER W. , MORETTI R. , THOMI S.
Published: May 2016

The N‐acylated sultams (I) are deprotonated with hexamethyldisilazides or butyllithium and then alkylated in α‐position to the carbonyl group, yielding selectively one diastereomer of the products (III), (V), or (VIII).
ChemInform Abstract: Peroxonium Ions from Butyl β‐Iodoalkyl Peroxides: An Investigation of the Effect of Replacing t‐Butyl by s‐Butyl and n‐Butyl.
Authors: BLOODWORTH A. J. , KHALAF Y. S. , MITCHELL J. C. , SPENCER M. D.
Published: May 2016

The reaction of Ag‐trifluoroacetate (V) with the Bu‐/sBu‐isomers (I), (VI), and (IX) of the tBu‐peroxides studied earlier is examined.
ChemInform Abstract: Chalcogenolates. Part 195. Attempts to Prepare Derivatives of N,N‐Bis(trimethylsilyl)dithiocarbamic Acid.
Authors: SCHUBERT G. , GATTOW G.
Published: May 2016

Reaction of sodium (or potassium) amide (I) with CS2 (II) produces the very unstable sodium salt (III) (or the more stable potassium salt).
ChemInform Abstract: A New Type of Double Calix(4)arenes by Coupling of the Phenolic Hydroxyl Groups.
Authors: MCKERVEY M. A. , OWENS M. , SCHULTEN H.‐R. , VOGT W. , BOEHMER V. +
Published: May 2016

Transformation of the tetraester (I) into the corresponding triester monoacid chloride and subsequent coupling with ethylene diamine (II) yields the double calix(4)arene diamide (IIIa); the corresponding diester (IIIb) is obtained by coupling with ethylene glycol.
ChemInform Abstract: 1,3‐Cycloadditions of Aliphatic Thione S‐Methylides to Dimethyl 2,3‐Dicyanofumarate and 2,3‐Dicyanomaleate. A Test Case for Steric Course and Mechanism.
Authors: MLOSTON G. , LANGHALS E. , HUISGEN R.
Published: May 2016

The thione S‐methylides (II) and (VII), generated in situ from the thiadiazolines (I) or (VI), react with the stereoisomeric dicyanoethylenedicarboxylates (IIIa) and (IIIb) to form mixtures of the isomeric cycloadducts (IV) and (V) or (VIII) and (IX) via interconvertible intermediates.
ChemInform Abstract: Synthesis and Pharmacological Study of Novel Piracetam Derivatives and Their Thio Analogues.
Authors: KADUSHKIN A. V. , GOLOVKO T. V. , GRANIK V. G. , GLUSHKOV R. G. , PARIMBETOVA R. B. , PARSHIN V. A. , MASHKOVSKII M. D.
Published: May 2016

The oxopyrrolidineacetate (I) reacts with the amines (II) to give the corresponding amides (III).
ChemInform Abstract: Tin Analogs of the Vinylogous Reformatskii Reaction. Regio‐ and Stereochemical Considerations.
Authors: FAN R. L. , HUDLICKY T.
Published: May 2016

The allylic stannanes (I) and (VIII) are coupled with benzaldehyde (II) in the presence of Lewis acids under various reaction conditions.
ChemInform Abstract: Biphenylenes and Heterocyclic Analogues of Biphenylene. Part 6. Chlorination of 4,5,9,10‐Tetraazaphenanthrene and the Preparation of Hexachloro‐1,8‐diazabiphenylene.
Authors: KILCOYNE J. P. , MACBRIDE J. A. H. , MUIR M. , WRIGHT P. M.
Published: May 2016

Optimum conditions are established for the preparation of the desired (II) and some chlorinated by‐products of the chlorination reactions examined are identified.
ChemInform Abstract: Heterocyclic Synthesis by Electrocyclization of Extended Dipoles: A Novel Access to the Indolizine and Quinolizine Systems.
Authors: EBERBACH W. , MAIER W.
Published: May 2016

2‐(Trimethylsilylmethyl)pyridine (I) is coupled with the alkynones (II) in the presence of LDA to give the enynes (III) which are oxidized with peracids, producing the corresponding N‐oxides (IVa) ‐ (IVd).
ChemInform Abstract: Synthesis and Pharmacological Study of 4,4a,5,6‐Tetrahydro‐4a‐Substituted Benzo(h)cinnolin‐3(2H)‐ones.
Authors: BARLOCCO D. , PINNA G. A. , CARBONI L. , CIPOLLA P.
Published: May 2016

The tetralones (I) are coupled with glyoxylic acid (II) and then reduced to give the acetic acids (III).
ChemInform Abstract: Carboxymethyl and Carboxy Derivatives of 7H‐ and 5H‐1,2,4‐Triazolo‐(3,4‐b)(1,3,4)thiadiazine: Synthesis and Biological Evaluation.
Authors: MAZZONE G. , BONINA F. , PIGNATELLO R. , PANICO A. M. , CARUSO A. , LEONE M. G. , AMICO‐ROXAS M. , BLANDINO G.
Published: May 2016

The triazolothiadiazines (III), (V), and (VII) are prepared by coupling of the triazines (I) with the halo ketones (II) and (IV) and the acetylene (VI) as outlined in the reaction scheme.
ChemInform Abstract: The Synthesis and Structure of a Macrocycle Containing a Quinone Unit by Treatment of Tetrafluoro‐1,4‐benzoquinone with 1,11‐Diamino‐3,6,9‐trioxaundecane.
Authors: HALL C. D. , SPEERS P. , NYBURG S. C. , PARKINS A. W.
Published: May 2016

Fluoranil (I) undergoes substitution reaction with the diamino triether (II) to form the macrocyclic difluoro‐p‐benzoquinone (III).
ChemInform Abstract: The First Internally Functionalized Chiral (2.2)Metacyclophanes.
Authors: VOEGTLE F. + , OSTROWICKI A. , KNOPS P. , FISCHER P. , REUTER H. , JANSEN M.
Published: May 2016

The bis(bromomethyl)benzenes (I) undergo cyclocondensation with the mercaptophenyltosylamides (II) in acetonitrile to form the helical (2.2)phanes (III).
ChemInform Abstract: The Chemistry of Fused Dicyclotriazaphosphole. Part 2. The Reaction Selectivities of Fused Dicyclotriazaphosphole Containing Two Kinds of Phosphorus.
Authors: ZHANG J.‐L. , XU W.
Published: May 2016

The thiazolotriazaphospholes (I), e.g. (Ib), react with the alcohols (II) to give the corresponding alkoxy derivatives (III) without any ring cleavage.
ChemInform Abstract: The Formation of Phosphepine 1‐Oxides in the Reaction of 1,2‐Dihydrophosphinine 1‐Oxides with Dichlorocarbene.
Authors: KEGLEVICH G. , JANKE F. , BRLIK J. , PETNEHAZY I. , TOTH G. , TOEKE L. +
Published: May 2016

Reaction of the dihydrophosphinine oxides (I) and (II) or (VII) with dichlorocarbene, generated from the trichloroacetate (III) or chloroform (V), leads to the formation of the ring‐enlarged products (IV), (VI), and (VIII).
ChemInform Abstract: Synthesis and Characterization of Novel Metal(III) Complexes of Corrole. Crystal and Molecular Structure of (2,3,7,8,12,13,17,18‐Octamethylcorrolato)(triphenylarsine)rhodium(III).
Authors: BOSCHI T. , LICOCCIA S. , PAOLESSE R. , TAGLIATESTA P. , TEHRAN M. A. , PELIZZI G. , VITALI F.
Published: May 2016

Transition metal corrolates are accessible by different routes: cyclization of the open‐chain precursor (I) in the presence of metal salts or by reaction of the preformed macrocycle (III) with metal salts in coordinating solvents or with metal carbonyls in an inert solvent.
ChemInform Abstract: Hydroformylation of Tricarbonyl(η6‐styrene)chromium and Related Compounds.
Authors: DOYLE M. M. , JACKSON W. R. , PERLMUTTER P.
Published: May 2016

The tricarbonylchromium complex (I) of styrene is subjected to hydroformylation in the presence of rhodium or platinum catalysts to produce the regioisomeric aldehydes (III) and (IV) with predominance of the branched derivative (III).
ChemInform Abstract: First Coupling of a Metal Atom with Four Ethene Molecules to a Metallaspiroalkane.
Authors: JONAS K. , BURKART G. , HAESELHOFF C. + , BETZ P. , KRUEGER C. +
Published: May 2016

The reduction of manganocene (I) with three equiv. naphthaline‐K in the presence of ethene (II) results in formation of a thermolabile Mn compound containing K and Mn in the ratio 1:1 which on warming to ‐35 °C and treating with pyridine (III) gives the manganaspiroalkane compound (IV).
ChemInform Abstract: Alkylnickel and ‐palladium Alkoxides Associated with Alcohols Through Hydrogen Bonding.
Authors: KIM Y.‐J. , OSAKADA K. , TAKENAKA A. , YAMAMOTO A.
Published: May 2016

The Pd complex (I) and the Ni analogue (IV) react with two equiv. of a fluorinated alcohol (II) or phenol and its derivatives such as (V) to give the title complexes.
ChemInform Abstract: Syntheses and Structures of Rhodium‐Osmium Clusters Derived from the Reaction of (μ‐H)2Os3(CO)10 with (η5‐C5H5)Rh(CO)2.
Authors: COLOMBIE A. , MCCARTHY D. A. , KRAUSE J. , HSU L.‐Y. , HSU W.‐L. , JAN D.‐Y. , SHORE S. G.
Published: May 2016

The reaction of the title compounds (I) and (II) in toluene favors the formation of tri‐ and tetranuclear clusters (III) and (IV) together with a small amount of (V), representing the first example of a pentanuclear, heteronuclear cluster which contains an edge‐bridging metal atom.
ChemInform Abstract: Carbonyl‐η‐hexamethylbenzene Complexes of Osmium. Carbon‐Hydrogen Activation by (η‐C6Me6)Os(CO)(H)2.
Authors: KIEL W. A. , BALL R. G. , GRAHAM W. A. G.
Published: May 2016

Photolysis of the dihydride (III) in hydrocarbons (IV) gives C‐H bond activation products (V) in each case.
ChemInform Abstract: A Novel 1,3 O → C Silyl Rearrangement in Carbohydrate Chemistry: Synthesis of α‐D‐Glycopyranosyltrimethylsilanes.
Authors: PEDRETTI V. , VEYRIERES A. , SINAY P.
Published: May 2016

Only the pyranosides (I) and (IV) undergo the title rearrangement to give the products (II) and (V), respectively.
ChemInform Abstract: De novo Synthesis of Carbohydrates and Related Natural Products. Part 33. Synthesis of 2‐Deoxy‐L‐ and ‐D‐galacto‐heptose via Inverse Type Hetero‐Diels‐Alder Reaction.
Authors: DE GAUDENZI L. , APPARAO S. , SCHMIDT R. R.
Published: May 2016

The title reaction of the heterodiene (IV), derived from L‐ascorbic acid, with the vinyl ether (V) affords predominantly the endo adducts (VI) with the α‐L‐erythro isomer (VIa) as the major product.
ChemInform Abstract: Ruthenium‐Catalyzed Atom‐Transfer Cyclization of N‐(Cyclohex‐2‐enyl)‐α‐chloro‐α‐(phenylthio)acetamides. A Formal Total Synthesis of (.+‐.)‐Haemanthidine and (.+‐.)‐Pretazettine.
Authors: ISHIBASHI H. , NAKATANI H. , IWAMI S. , SATO T. , NAKAMURA N. , IKEDA M.
Published: May 2016

The methoxycyclohexane (I) is converted into the α‐chloro‐α‐phenylsulfenylacetamide (II) which undergoes Ru(II)‐catalyzed cyclization in benzene to give the bicyclic lactam (III).
ChemInform Abstract: A Novel and Efficient Route to Chiral 2‐Substituted Carbocyclic 5′‐N‐Ethylcarboxamidoadenosine (C‐NECA).
Authors: CHEN J. , GRIM M. , ROCK C. , CHAN K.
Published: May 2016

A synthetic approach to C‐NECA analogues (X) with good A2 selectivity and improved stability and bioavailability is outlined.
ChemInform Abstract: Oligomeric Flavanoids. Part 8. The First Profisetinidins and Proguibourtinidins Based on C‐8 Substituted (‐)‐Fisetinidol Units and Related C‐Ring Isomerized Analogues.
Authors: MALAN J. C. S. , STEENKAMP J. A. , STEYNBERG J. P. , YOUNG D. A. , BRANDT E. V. , FERREIRA D.
Published: May 2016

Structural examination of the phenolic metabolites of Colophospermum mopane reveals the presence of the first profisetinidins and proguibourtinidins based on C‐8 substituted (‐)‐fisetinidol units, e.g. the bis‐(‐)‐fisetinidol (Ia), the (+)‐epifisetinidol derivative (Ib) and the (+)‐guibourtinidol derivative (Ic).
ChemInform Abstract: Oligomeric Flavanoids. Part 9. The First Biflavanoids Based on Mopanol and Peltogynol as Inceptive Electrophiles.
Authors: MALAN J. C. S. , YOUNG D. A. , STEYNBERG J. P. , FERREIRA D.
Published: May 2016

Continued investigation of the phenolic metabolites of Colophospermum mopane reveals the occurrence of the first series of biflavanoids based on mopanol and peltogynol as electrophilic species, among them (+)‐mopanane‐(4β,6)‐fisetinidol (I) and the unique oxidatively coupled (+)‐guibourtinidol‐(3',4''‐O)‐epimopanone (II).
ChemInform Abstract: Oligomeric Flavanoids. Part 10. Structure and Synthesis of the First Tetrahydropyrano(3,2‐g)chromenes Related to (4,6)‐Bis‐(‐)‐fisetinidol Profisetinidins.
Authors: MALAN J. C. S. , YOUNG D. A. , STEYNBERG J. P. , FERREIRA D.
Published: May 2016

The range of natural bis‐fisetinidol profisetinidins is extended by identification of various new analogues such as (+)‐epifisetinidol‐(4α,6)‐(‐)‐fisetinidol (Ia) or (4β,6')‐bis‐(‐)‐fisetinidol (II).
ChemInform Abstract: Structures of Garugamblin‐I and Garugamblin‐II: Two Natural Ansa Bridged Biaryl Ethers.
Authors: NETHAJI M. , PATTABHI V. , KRISHNAMURTHY H. G. , TALUKDAR A. C.
Published: May 2016

The two novel title compounds (I) and (II) are isolated from the bark of Garuga gamblei and their X‐ray structures are determined (both: space group P21, Z=2).
ChemInform Abstract: Pseudopotential Investigations on the Molecules Cu2Si2, Cu2Sn2, Cu4Si4, and Cu4Sn4
Authors: PLASS W. , SAVIN A. , STOLL H. , PREUSS H. , NESPER R. , VON SCHNERING H. G.
Published: May 2016

show the equilibrium structures to be the butterfly arrangement for the Cu2X2 clusters and the heterocubane arrangement for the Cu4X4 clusters.
ChemInform Abstract: Piezoresistivity in Polymer‐Ceramic Composites.
Authors: YOSHIKAWA S. , OTA T. , NEWNHAM R. , AMIN A.
Published: May 2016

Varying amounts of Fe3O4 powder or Sb‐doped SnO2 powder are dispersed in a flexible epoxy polymer matrix to form pressure‐sensitive composites.
ChemInform Abstract: Carbonyl Dibromide: A Novel Reagent for the Synthesis of Metal Bromides and Oxide Bromides.
Authors: PARKINGTON M. J. , SEDDON K. R. , RYAN T. A.
Published: May 2016

Treatment of the metal oxides (I), (III), (V), and (VII) with carbonyl dibromide results in the formation of the metal oxide bromides (II), (IV), (VI), and (VIII).
ChemInform Abstract: Structure and Reduction of Mixed Copper‐Aluminum Oxide.
Authors: PATRICK V. , GAVALAS G.
Published: May 2016

Mixed Cu‐Al oxides prepared by the citrate process are found to consist of CuO, Al2O3, and CuAl2O4, the content of the latter increasing with increasing calcination temperature.
ChemInform Abstract: Cycloalkyne ‐ Vinylidenecycloalkane Rearrangements.
Authors: MEIER H. , SCHMITT M.
Published: May 2016

Flash vacuum pyrolysis of the cyclooctenyne (I) results in rearrangement and ring contraction, yielding the ethenylidenecyclohexene (II).
ChemInform Abstract: Nickel‐Catalyzed Dehydrogenation of Amines to Nitriles.
Authors: YAMAZAKI S. , YAMAZAKI Y.
Published: May 2016

The system NiSO4 (0.5‐2 mol%)/K2S2O8 in basic medium, giving nickel peroxide as catalytically active species, has previously been successfully employed for the dehydrogenation of allylic alcohols to unsaturated carbonyl compounds; its application to amines such as (I), (III) and (V) represents the first practical method for the transformation of amines to nitriles (or imines) by catalytic dehydrogenation.
ChemInform Abstract: Hydrogen Transfer Reactions. Part 15. The Transition State in the Dehydrogenation of Dihydroarenes by Quinones.
Authors: RADTKE R. , HINTZE H. , ROESLER K. + , HEESING A.
Published: May 2016

The mechanism is studied using mostly 1,2‐dihydronaphthalene and some of its methoxy derivatives as the substrates and o‐chloranil and DDQ as the oxidizing agents; the temp. dependence of prim. kinetic isotope effects gives a further insight.
ChemInform Abstract: Organophosphorus Chemistry. Part 12. Reaction of Furil with Alkyl Phosphites and Ylide‐Phosphoranes.
Authors: MAHRAN M. R. , ABDOU W. M. , KHIDRE M. D.
Published: May 2016

The reactions of an α‐diketone bearing heterocyclic substituents, i.e. furil (I), with alkyl phosphites (II) and (V) and with the ylide‐phosphoranes (VI) are investigated.
ChemInform Abstract: Synthesis, Antiacetylcholinesterase and Anthelmintic Activities of Newer Indolyl Derivatives.
Authors: GUPTA D. P. , KUMAR P. , AHMAD S. , SHANKER K.
Published: May 2016

The title compounds (V) (14 examples) and (VII) (8 examples) are tested for their anthelmintic acitvity.
ChemInform Abstract: Reactions of Cyclic Anhydrides. Part 17. Synthesis of Pyrrolobenzimidazoles and Benzimidazolylacrylic Acids.
Authors: BALASUBRAMANIYAN V. , BALASUBRAMANIYAN P. , PATIL S. V.
Published: May 2016

The title compounds (III) and (V) represent congeners of the azamitosane system.
ChemInform Abstract: The Chemistry of Pyrimidinethiols. Part 3. The Synthesis of Some Substituted Pyrimidinethiols and Some Thiazolo(5,4‐d)pyrimidines.
Authors: HARNDEN M. R. , HURST D. T.
Published: May 2016

The preparation of a number of pyrimidinethiols and their substituted thiol derivatives is described.
ChemInform Abstract: Series of Two‐Coordinate and Quasi‐Two‐Coordinate Transition‐Metal Complexes: Synthesis, Structural, and Spectroscopic Studies of Sterically Demanding Borylamide Ligands ‐NRBR′2 (R: Ph, R′: Mes, Xyl; R = R′: Mes), Their Lithium Salts Li(Et2O)2NRBR′2, and Their Transition‐Metal Derivatives M(NPhBMes2)2 (M: Cr, Co, Ni), Co(NPhBXyl2)2, and M(NMesBMes2)2 (M: Cr → Ni).
Authors: CHEN H. , BARTLETT R. A. , OLMSTEAD M. M. , POWER P. P. , SHONER S. C.
Published: May 2016

Amide ligands (I) (preparation described) and (III), modified by the presence of the diarylboryl substituents, are used to synthesize low‐coordinate metal complexes of unusual structure.
ChemInform Abstract: Syntheses of Organo‐Lanthanum and ‐Cerium Cations and Labile Precursors.
Authors: HAZIN P. N. , BRUNO J. W. , SCHULTE G. K.
Published: May 2016

The complexes (III) serve as useful precursors for complexes containing the early‐lanthanoid fragments (Cyp2M)+.
ChemInform Abstract: Poly(pyrazolyl)borate Complexes of Terbium, Samarium, and Erbium. X‐Ray Crystal Structure of ((η3‐HB(pz)3)2Sm(μ‐O2CPh))2 (pz: Pyrazolyl Ring).
Authors: REGER D. L. , KNOX S. J. , LINDEMAN J. A. , LEBIODA L.
Published: May 2016

Paramagnetic complexes of type (III) with trigonal‐prismatic structure possessing weak agostic B‐H···M three‐center interaction, and complexes of type (V) and (VI) are prepared, the latter from (I) and two equiv. (VI) in the presence of one equiv. NaOOCR (yields of (VIa) 94/93/40% and of (VIb) 82%).
ChemInform Abstract: Optical Resolution and Absolute Configuration of the Chiral Pentamethylcyclopentadienylrhenium Carbonyl Complex ((η5‐C5Me5)Re(NO)(PPh3)(CO))+BF‐ 4.
Authors: HUANG Y.‐H. , NIEDERCORN F. , ARIF A. M. , GLADYSZ J. A.
Published: May 2016

The racemic complex (I) is optically resolved via the ester (III).
ChemInform Abstract: Dealumination of Zeolites with Silicon Tetrachloride Vapor. Part 6. Zeolites Li,Na‐X and Li,Na‐Y.
Authors: SULIKOWSKI B. , KLINOWSKI J.
Published: May 2016

The dealumination of Li,Na‐X and Li,Na‐Y with SiCl4 vapor is studied by IR, 29Si and 27Al MAS NMR, XRD, and AAS.
ChemInform Abstract: Ba5(Ir,Ru)3O12, a New Crystal Structure with Isolated Octahedral Triple
Authors: LANG CH. , MUELLER‐BUSCHBAUM HK. +
Published: May 2016

is synthesized by heating mixtures of BaCO3:Ir:Ru = 5:1.5:1.5 in the presence of BaCl2 as a flux at 1040 °C (8 d) and investigated using single‐crystal XRD.
ChemInform Abstract: A Short and Efficient Method for the Preparation of α,p‐Dimethylstyrene from Citral.
Authors: BARTON D. H. R. , PAREKH S. I.
Published: May 2016

The acid‐catalyzed oxidative cyclization of citral (I) to give mainly α,p‐dimethylstyrene (II), together with p‐cymene (III), is performed under various conditions.
ChemInform Abstract: Skeletal Rearrangement Reactions of Hexanes on Pt3Ti Polycrystalline Catalysts.
Authors: DAUSCHER A. , MUELLER W. + , MAIRE G.
Published: May 2016

In order to study the catalytic activity of Pt3Ti, the rearrangement reactions of hexanes are analyzed and compared with results obtained with a Pt polycrystalline foil and Pt(111) single crystal.
ChemInform Abstract: Oxidation of Phenols with Molecular Oxygen Catalyzed by (N,N′‐Bis(2′‐pyridinecarboxamido)‐1,2‐benzene)cobalt(II) Chelate.
Authors: GANESHPURE P. A. , SUDALAI A. , SATISH S.
Published: May 2016

Hydroquinone (IIa) and the phenols (IIb) and (IIc) are oxidized in the presence of the cobalt complex (I) to form the p‐benzoquinones (III).
ChemInform Abstract: Stereochemistry and Mechanism of Deoxygenation and Reductive Cleavage of an α,β‐Epoxyketone in a Tricyclo(5.2.2.02,6)undecane Framework.
Authors: SINGH V. , DEOTA P. T.
Published: May 2016

Treatment of epoxyketone (I) with Zn in dry MeOH containing NH4Cl at 60 °C for 8 h furnishes mixtures of (IVa) + (IVb) and (IVc) + (IVd).
ChemInform Abstract: Activity, Selectivity, and Stereochemical Features in the Copper‐Catalyzed Hydrogenative Ring‐Opening of Alkyl‐Substituted Cyclopropanes‐Nature of Active Sites.
Authors: PALINKO I. , MOLNAR A. , KISS J. T. , BARTOK M.
Published: May 2016

Over the pressure range 13‐67 kPa, the hydrogenation of dimethylcyclopropanes such as (I) is studied on Cu catalysts using silica gel or Cab‐O‐Sil as supports.
ChemInform Abstract: Regiospecific Synthesis of 1‐Silyl Substituted 1,4‐Dienes.
Authors: SCHAUMANN E. , KIRSCHNING A.
Published: May 2016

The predominant proportion of the ring opening products (III) and (VI) in comparison to (IV) and (VII) is somewhat lowered in the case of the unsymmetric starting product (Ib) or the cyclohexane derivative (Vb), respectively.
ChemInform Abstract: Synthesis and β‐Adrenergic Antagonist Activity of Stereoisomeric Practolol and Propranolol Derivatives.
Authors: LEFTHERIS K. , GOODMAN M.
Published: May 2016

Treatment of 4‐acetamidophenol (I) with the optically pure epoxypropane (II) and subsequent reaction of the intermediate with the chiral amide (III) of 6‐aminoheptanoic acid yield the compound (IV) as an analog of practolol.
ChemInform Abstract: (1,4)Phenylthio Shifts of 2,4,4‐Trisphenylthiobutanols.
Authors: VILLA M.‐J. , WARREN S.
Published: May 2016

The dithioacetals (I) react with butyllithium (II) and methyl crotonate (III) to give the ketene acetals (IV) which are consecutively treated with trimethylsilyl chloride and phenylsulfenyl chloride (V) to yield mixtures of the anti‐ (VI) and syn‐adducts (VII).
ChemInform Abstract: A Novel Synthesis of 2‐Vinylindoles and Their Utilization in the Diels‐Alder Reaction for the Formation of New (c) Anellated Carbazole Derivatives.
Authors: AKGUEN E. + , TUNALI M. , ERDOENMEZ G. +
Published: May 2016

Treatment of the carbinols (III) with TFA causes dehydration of the derivatives (IIIa) and (IIIb) to give the 2‐vinylindoles (IVa) or (IVb), whereas the carbinols (IIIc) are recovered unchanged.
ChemInform Abstract: Formation of a Benzopyrylium Ion and a Quinoline from Benzofuran.
Authors: SONNENSCHEIN H. , SCHMITZ E. , PRITZKOW W.
Published: May 2016

Phenylchlorocarbene, generated from the phenylchloroazirine (II), reacts with benzofuran (I) to give the cyclopropane derivative (III).
ChemInform Abstract: Studies in Spiroheterocycles. Part 13. Synthesis of a Novel Spiro System: Spiro(9H‐Acridine‐9,3′‐(3H)indol)‐2′(1′H)‐one and Related Compounds from New Fluorinated Spiro(3H‐indole‐3,9′‐(9H)xanthen)‐2(1H)‐ones.
Authors: JOSHI K. C. , JAIN R. , DANDIA A. , GARG S. , AHMED N.
Published: May 2016

As shown for (IVa) and (IVb), a variety of title compounds such as (IV) or (V) are prepared.
ChemInform Abstract: Synthesis and Tautomerism of Ethyl 2‐(2‐Benzothiazolyl)‐2‐(6‐purinyl)acetate and Related Compounds.
Authors: KLEMM L. H. , JOHNSTONE S. , TRAN L. K.
Published: May 2016

In the solid state, the enol chelate (III) is found to be the only existing tautomer, whereas in solution minor amounts of the keto tautomer are also present.
ChemInform Abstract: A New and Facile Synthesis of 8‐Arylxanthines.
Authors: PERUMATTAM J.
Published: May 2016

5,6‐Diamino‐1,3‐dipropyluracil (I) reacts with the benzaldehydes (II) to form selectively the 5‐benzylideneamino derivatives (III).
ChemInform Abstract: Stereoselective α‐Methylation of N‐Methylbenzylamine via a Combination of Chromium Tricarbonyl and Chiral Formamidine Methodologies.
Authors: ALBERT J. , DAVIES S. G.
Published: May 2016

The benzylamine (I) is coupled with the chiral formamidines (II) to yield the transaminated amidines (III).
ChemInform Abstract: Acylsilenes (3‐Oxo‐1‐sila‐1‐propenes) from Acyl(disilanyl)carbenes.
Authors: SCHNEIDER K. , DAUCHER B. , FRONDA A. , MAAS G.
Published: May 2016

UV photolysis of the diazo(disilanyl)methyl ketones (III) generates acyl(disilanyl)carbenes (IV) which rearrange to 3‐oxo‐1‐sila‐1‐propenes (V).
ChemInform Abstract: Cyclophosphazenic Polypodands: A New Class of Powerful Metal Cation Complexing Agents and Phase‐Transfer Catalysts.
Authors: LANDINI D. , MAIA A. , CORDA L. , MACCIONI A. , PODDA G.
Published: May 2016

The polypodands (Ia) ‐ (Ic), whose preparation is described in a former publication, are excellent agents for the complexation of alkali metal salts in low polarity solvents.
ChemInform Abstract: Unexpected Reversal of Regioselectivity in the Palladium‐Catalyzed Addition of the Tin‐Germanium Bond to Allenes.
Authors: MITCHELL T. N. , SCHNEIDER U. , FROEHLING B. +
Published: May 2016

Whereas the addition of tributyl(trimethylgermyl)stannane (II) to 1‐alkynes in the presence of catalytical Pd(PPh3)4 proceeds regiospecifically, the direction of its addition to allenes e.g. (I) is dependent on the substituent R. In the case of (Ia) only the regioisomeric vinyltin compound (IIIa) is formed, while with increasing size of R the vinyl‐Ge compounds (IV) are also produced with increasing yields.
ChemInform Abstract: New Niobium Complexes with Alkynes. Part 2. Tetranuclear Compounds with Nb‐Nb Bonds, an Unprecedented Type of Tetracarbon Ligand, and Oxygen in a Rectangular Environment.
Authors: COTTON F. A. , SHANG M.
Published: May 2016

The tetranuclear dianion of complex (V) (P1, Z=1) is also prepared by reduction of NbCl3(Ph‐C≡C‐Ph)(THF)2 with Na amalgam and isolated as the dinatrium salt (20% yield, P1, Z=2) with the Na partially coordinated to Cl and THF solvate molecules, and by the same reduction in the presence of PEt3, then isolated as the PHEt3 salt (49% yield, P1, Z=1).
ChemInform Abstract: Synthesis, Structure, and Properties of Fe2Te3(CO)2‐ 6 Containing the Unusual μ2‐η1‐Te2‐ 2 Ligand.
Authors: EICHHORN B. W. , HAUSHALTER R. C. , MEROLA J. S.
Published: May 2016

The potassium salt (IV)·1/2en (space group P1, Z=4) is characterized by X‐ray structure analysis and IR spectroscopy.
ChemInform Abstract: Synthesis of Peptidyl Fluoromethyl Ketones and Peptidyl α‐Keto Esters as Inhibitors of Porcine Pancreatic Elastase, Human Neutrophil Elastase, and Rat and Human Neutrophil Cathepsin G.
Authors: PEET N. P. , BURKHART J. P. , ANGELASTRO M. R. , GIROUX E. L. , MEHDI S. , BEY P. , KOLB M. , NEISES B. , SCHIRLIN D.
Published: May 2016

Reaction of protected peptides such as (I) with amino alcohol hydrochlorides such as (II) yields the corresponding peptide alcohols, e.g. (III), which are subjected to Swern oxidation, forming the ketones, e.g. (IV), mentioned in the title.
ChemInform Abstract: Synthesis and in vivo Antitumor Activity of 2‐Amino‐9H‐purine‐6‐sulfenamide, ‐sulfinamide, and ‐sulfonamide and Related Purine Ribonucleosides.
Authors: REVANKAR G. R. , HANNA N. B. , IMAMURA N. , LEWIS A. F. , LARSON S. B. , FINCH R. A. , AVERY T. L. , ROBINS R. K.
Published: May 2016

Amination of the 6‐mercaptopurines (I) with chloroamine, generated in situ from commercial sodium hypochlorite solution and aqueous ammonia (II), produces the sulfenamides (III) which are further converted to the sulfinamides (IV) or sulfonamides (V) by oxidation with a peracid.
ChemInform Abstract: Asymmetric Synthesis of Both Enantiomers of 4‐Hexanolide, a Component of the Female Sex Pheromone from the Dermestid Beetle Trogoderma glabrum.
Authors: KO K.‐Y. , ELIEL E. L.
Published: May 2016

Only the (R) enantiomer (XI) of 4‐hexanolide is the active component of the title pheromone.
ChemInform Abstract: Absorption of Hydrogen by Pd‐Nb(Ta) Solid Solution Alloys
Authors: SAKAMOTO Y. , KAJIHARA K. , KIKUMURA T. , FLANAGAN T. B.
Published: May 2016

is investigated for alloys containing 2‐8 at.% Nb or 2‐6 at.% Ta at H2 pressures up to 1000 torr.
ChemInform Abstract: Synthetic Inorganic Ion‐Exchange Materials. Part 53. NMR Study of H+/Li+ Exchange on Monoclinic Antimonic Acid (MSbA).
Authors: KANZAKI Y. , CHITRAKAR R. , ABE M.
Published: May 2016

1H and 7Li NMR studies combined with X‐ray analyses are indicative of mobile and immobile protons in MSbA.
ChemInform Abstract: How Strong is the Si=C Bond in Fluoro‐ and Methyl‐Substituted Silaethylenes? An Experimental Determination of π Bond Strengths.
Authors: ALLISON C. E. , MCMAHON T. B.
Published: May 2016

Proton affinities and fluoride affinities are measured and used to calculate the strength of the Si=C π bond in the title compounds via two independent thermochemical cycles.
ChemInform Abstract: Electrochemical Study of the Reaction Between Leucodye and Fe(III) in Dye‐Based Photogalvanic Systems.
Authors: MURTHY A. S. N. , SRIVASTAVA T.
Published: May 2016

A large catalytic current is observed in the cyclic voltammogram of thionine (II) at an In‐SnO2 electrode, when Fe3+ is added.
ChemInform Abstract: PMO Analysis of Cycloadditions. Part 6. Ethoxyacetylene and Ethyl Vinyl Ether, Dipolarophiles of Opposite Regiochemistry in Diazomethane Cycloadditions.
Authors: SUSTMANN R. , SICKING W. , FELDERHOFF M.
Published: May 2016

Diazomethane (II) adds to ethoxyacetylene (I) to give 4‐ethoxypyrazole (III) nearly exclusively.
ChemInform Abstract: ESR and Pulse Radiolysis Studies on the Reaction of OH· and SO·‐ 4 with Five‐Membered Heterocyclic Compounds in Aqueous Solution.
Authors: DOGAN I. , STEENKEN S. , SCHULTE‐FROHLINDE D. , ICLI S.
Published: May 2016

In order to clarify the reaction mechanism, to investigate transformation reactions and to determine the selectivities of the oxidizing radicals, the title reactions are investigated and the rate constants determined.
ChemInform Abstract: Iron‐Catalysed Oxidation of N,N‐(Dialkyl)acylmethylamines with Molecular Oxygen in the Presence of Either 2‐Mercaptoethanol or Sodium Sulfide.
Authors: MURATA S. , SUZUKI K. , MIURA M. , NOMURA M.
Published: May 2016

The mechanism of the title reaction (e.g.
ChemInform Abstract: Photoinduced Set Generation of α‐Amine Radicals: A Practical Method for the Synthesis of Pyrrolidines and Piperidines.
Authors: PANDEY G. , KUMARASWAMY G. , BHALERAO U. T.
Published: May 2016

The N‐(trimethylsilylmethyl)alkenylamines (I) undergo ring‐closure upon photolysis in the presence of dicyanoanthracene to give the cyclic amines (II) or (IV) and (V).
ChemInform Abstract: Studies on Antidiabetic Agents. Synthesis and Hypoglycemic Activity of 5‐(4‐(Pyridylalkoxy)benzyl)‐2,4‐thiazolidinediones.
Authors: SOHDA T. , MOMOSE Y. , MEGURO K. , KAWAMATSU Y. , SUGIYAMA Y. , IKEDA H.
Published: May 2016

The pyridylethanols (I) are transformed into the p‐nitrophenyl ethers (III) which undergo coupling with the acrylate (IV) via reduction and diazotization to form the pyridylethoxyphenylpropionates (V).
ChemInform Abstract: Reactive E=C(p‐p)π‐Systems. Part 20. Synthesis and Reactivity of the Isomeric Perfluorophosphaalkenes F3CP=C(F)CF3 and F5C2P=CF2.
Authors: GROBE J. , HEGEMANN M. , LE VAN D.
Published: May 2016

The cycloadducts (XIV)‐(XVI) are obtained in ca. 85% yield.
ChemInform Abstract: Diphenylphosphine Adducts of Tris(neopentyl) and Tris(trimethylsilylmethyl)gallium and ‐indium Including the Crystal and Molecular Structure of (Me3CCH2)3Ga·P(H)Ph2.
Authors: BANKS M. A. , BEACHLEY O. T. JUN. , MALONEY J. D. , ROGERS R. D.
Published: May 2016

The phosphine‐Ga(III) adducts (III) ((IIIa): space group P1, Z=2) are isolated as crystalline solids at room temp. and characterized by cryoscopic mol.
ChemInform Abstract: Cycloaddition Route to 14,17‐Ethano‐ and 14‐Alkyl‐19‐norsteroids.
Authors: BULL J. R. , THOMSON R. I.
Published: May 2016

The ethenoestratriene (IV) is the starting product for a series of ethanoestratriene derivatives and for the dialdehyde (VIII).
ChemInform Abstract: Glycosidation. Part 14. Stereoselective Synthesis of Acetal‐β‐glucosides by Reaction of 2,3,4,6‐Tetra‐O‐acetyl‐β‐D‐glucopyranose with Enol Ethers.
Authors: TIETZE L. F. , LOEGERS M. +
Published: May 2016

The products (III) are obtained from the title reaction with low stereodifferentiation at the new stereogenic center at C‐1'.
ChemInform Abstract: The Influence of Oxidation Upon the Storage Capacity of LaNi5 Electrodes.
Authors: BOONSTRA A. H. , BERNARDS T. N. M. , LIPPITS G. J. M.
Published: May 2016

The effect of the particle size and the degree of oxidation of LaNi5 powders on the hydrogen storage capacity of the corresponding electrodes is studied.
ChemInform Abstract: Formation of β‐FeSi2 from the Sintered Eutectic Alloy FeSi‐Fe2Si5 Doped with Cobalt
Authors: KOJIMA T. , MASUMOTO K. , OKAMOTO M. A. , NISHIDA I.
Published: May 2016

is studied as a function of annealing time and temp. by means of X‐ray analysis and measurements of the electrical resistivity and thermoelectric power.
ChemInform Abstract: Fluorination of the Superconducting Oxide YBCO with Elementary Fluorine.
Authors: TAKASHIMA M. , AMAYA M. , KANO G. , FUKAMI S.
Published: May 2016

Fluorination of YBa2Cu3O6.93 (YBCO) with elementary fluorine at 20 to 450°C gives rise to YBa2Cu3O6.93‐x/2Fx (YBCFxOy) in which x can be controlled by the reaction temperature and time in the range of 0<x<2.
ChemInform Abstract: Palladium‐Catalyzed Asymmetric Allylations of (S)‐Proline Allyl Ester Amides.
Authors: HIROI K. , MAEZURU K. , KIMURA M. , ITO N.
Published: May 2016

The proline 2‐tosylpropionates (Ia) and (Ib) are selectively allylated with the acetate (II) in the presence of a palladium(0) catalyst, yielding the chiral amides (2S)‐(IIIa) and (2S)‐(IIIb).
ChemInform Abstract: Reduction of 1‐(5‐Uracilylmethyl)pyridinium Salts by Thiols to Thymine Derivatives. A Model of the Thymidylate Synthase Reaction.
Authors: VEGA E. , DE WAARD E. R. , PANDIT U. K.
Published: May 2016

The title salts react with thiols (conditions A)) or, considerably more slowly, with dihydrophenanthridine (conditions B)) or with the Hantzsch ester (conditions C)) to form thymine (II).
ChemInform Abstract: New Radical Chain Reaction of S‐Alkoxycarbonyl Dithiocarbonates: A Useful Source of Alkyl Radicals from Alcohols.
Authors: FORBES J. E. , ZARD S. Z.
Published: May 2016

The title dithiocarbonates, e.g. (I), (III) and (V), are prepared from the corresponding alcohols.
ChemInform Abstract: Asymmetric Synthesis of 3‐Substituted 2‐exo‐Methylenecyclohexanones via 1,5‐Diastereoselection by Using a Chiral Amine.
Authors: TAMURA R. , WATABE K. , KATAYAMA H. , SUZUKI H. , YAMAMOTO Y.
Published: May 2016

(S)‐2‐((2‐Methoxymethyl)‐1‐pyrrolidinyl)methyl‐2‐cyclohexen‐1‐one (I) undergoes asymmetric conjugate addition of lithium diorganocuprates such as (II) followed by elimination of the chiral auxiliary to form the corresponding optically active cyclohexanone, e.g. (III).
ChemInform Abstract: An Analogue of the Antioestrogen Tamoxifen of Sufficient Rigidity to Exist as Distinct Enantiomers: Synthesis and Conformational Dynamics Studies.
Authors: MCCAGUE R.
Published: May 2016

The key step in the synthesis of the conformationally constrained analogue (X) of the drug tamixofen (I) is a novel method for introduction of a methyl group into the aromatic ring of benzosuberone by enolate oxygen directed lithiation ((II) → (IV)).
ChemInform Abstract: Trifluoromethyl‐Substituted Organo‐Tin Heterocycles as Synthons.
Authors: BURGER K. , GEITH K. , SEWALD N.
Published: May 2016

The heterodienes (I) react with Sn(II) compounds to form heterocyclic (4 + 1)organotin cycloadducts, e.g. (III), as intermediates.
ChemInform Abstract: N‐Methylation of Lactams Using Organo‐Silicon Reagents.
Authors: SHIPOV A. G. , KRAMAROVA E. P. , ARTAMKINA O. B. , BAUKOV YU. I.
Published: May 2016

Reduction of the N‐chloromethyl lactams (I), previously prepared from 2‐pyrrolidone or 2‐piperidone, paraformaldehyde, and trimethylchlorosilane, with dimethylchlorosilane gives the N‐methyl lactams (II).
ChemInform Abstract: Tricarbonylchromium(0)‐Promoted Stereoselective Cyclizations of the N‐3,4‐Dimethoxyphenethyl Derivatives of the 1‐Phenyl‐ethanolamines Halostachine, Ephedrine and Pseudoephedrine to 1‐Phenyl‐N‐methyl‐7,8‐dimethoxy‐1,2,4,5‐tetrahydrobenzazepines.
Authors: COOTE S. J. , DAVIES S. G. , MIDDLEMISS D. , NAYLOR A.
Published: May 2016

The cyclization of tricarbonylchromium(0) complexes of the title ethanolamines, e.g. (I) and (VIII), is completely stereospecific and proceeds with retention of the configuration.
ChemInform Abstract: Redox‐Dependent Binding Ability of a Flavin Cyclophane in Aqueous Solution: Hydrophobic Stacking versus Cavity‐Inclusion Complexation.
Authors: SEWARD E. M. , HOPKINS R. B. , SAUERER W. , TAM S.‐W. , DIEDERICH F.
Published: May 2016

The synthesis and the structural and electrochemical characterization of a flavinophane in its oxidized (cf.
ChemInform Abstract: Perfluoroalkylphosphonic Acids and Their Derivatives.
Authors: KOVALEVA T. V. , MARTYNYUK E. G. , SEMENII V. YA.
Published: May 2016

Alkaline hydrolysis of the difluorophosphoranes (I) gives the acids (II) mentioned in the title, which are of interest as surfactants.
ChemInform Abstract: The Chemistry of Vicinal Tricarbonyls. A Total Synthesis of (.+‐.)‐3‐Demethoxyerythratidinone.
Authors: WASSERMAN H. H. , AMICI R. M.
Published: May 2016

Reaction of the phenethylamine (I) with the tricarbonyl derivative (II) forms the tricyclic pyrrolidone carboxylate (III).
ChemInform Abstract: Formation and Properties of Calcia‐Calcium Fluoride‐Alumina Glasses.
Authors: SHELBY J. E. , LORD C. E.
Published: May 2016

The glass transformation temp. in the CaO‐CaF2‐Al2O3 system is found to decrease with increasing CaF2 content.
ChemInform Abstract: The Polarization of Iron in Aqueous Perchlorate Solutions. The Effect of Purity of the Electrolyte.
Authors: AHLBERG E. , FRIEL M.
Published: May 2016

The electrochemical behavior of iron in commercial p.a.
ChemInform Abstract: Preparative Bioorganic Chemistry. Part 12. Enzymatic Preparation of the Enantiomers of Some 1‐Phenyl‐1‐alkanols.
Authors: MORI K. , BERNOTAS R.
Published: May 2016

Optical separation of the acetates (±)‐(I) is achieved using Pseudomonas lipase (lipase P) in 10% acetone/0.1 M phosphate buffer.
ChemInform Abstract: Selective Propargylation of Carbonyl Compounds with Allenylstannane/Alkyllithium Mixed Reagents.
Authors: SUZUKI M. , MORITA Y. , NOYORI R.
Published: May 2016

Reaction of the 3‐chloropropynylstannane (I) with the Grignard reagent (II) yields the 1‐substituted allenyltrialkylstannane (III) which undergoes transmetalation with methyllithium.
ChemInform Abstract: Synthesis of Partially Hydrogenated 2‐Phenylnaphthalenes with a Nematic Mesophase.
Authors: LAUK U. , DUERST D. + , VALERI F.
Published: May 2016

The title compounds (VIII) ‐ (X), (XIII), and (XVII), and the 2‐phenylnaphthalene derivative (XVIII) are synthesized as shown in the reaction scheme.
ChemInform Abstract: Nonneurotoxic Tetralin and Indan Analogues of 3,4‐(Methylenedioxy)amphetamine (MDA).
Authors: NICHOLS D. E. , BREWSTER W. K. , JOHNSON M. P. , OBERLENDER R. , RIGGS R. M.
Published: May 2016

Nitrosation of the indanones (I), followed by reduction, yields the aminoindans (III).
ChemInform Abstract: Homogeneous Catalysis: Catalytic Intramolecular Conversion of 1,4‐Dialdehydes to γ‐Lactones.
Authors: BERGENS S. H. , FAIRLIE D. P. , BOSNICH B.
Published: May 2016

A series of catalysts of the type (Rh(diphosphine)(solvent)2)+ (solvent: weakly coordinating solvent) is found to convert 1,4‐dialdehydes such as (I) into the γ‐lactones (II) (turnover numbers are given).
ChemInform Abstract: Oxidation of 1‐Aminobenzimidazoles. Synthesis and Properties of 1,1′‐Azobenzimidazoles.
Authors: POZHARSKII A. F. , NANAVYAN I. M. , KUZ'MENKO V. V. , CHERNYSHEV A. I. , ORLOV YU. V. , KLYUEV N. A.
Published: May 2016

The 1‐aminobenzimidazoles (I) are oxidized with lead(IV) acetate (II) to give predominantly the azo compounds (III).
ChemInform Abstract: Synthesis and Antifolate Properties of 10‐Alkyl‐5,10‐dideaza Analogues of Methotrexate and Tetrahydrofolic Acid.
Authors: DEGRAW J. I. , CHRISTIE P. H. , KISLIUK R. L. , GAUMONT Y. , SIROTNAK F. M.
Published: May 2016

The aminocyanopyridines (VI) are prepared from the enol ethers (I) via addition of the enol acetate (IV) to the enamines (III) and subsequent cyclization with ammonia (V).
ChemInform Abstract: Synthesis of Atropisomeric 2,2′‐Bis(dicyclohexylphosphino)‐6,6′‐dimethyl‐1,1′‐biphenyl (BICHEP) and Its Use in Rh(I)‐Catalyzed Asymmetric Hydrogenation of Prochiral Olefins.
Authors: MIYASHITA A. , KARINO H. , SHIMAMURA J. , CHIBA T. , NAGANO K. , NOHIRA H. , TAKAYA H.
Published: May 2016

o‐Toluidine (I) is converted to the dibromodimethylbiphenyl (IV) which is coupled with the phosphinic chloride (V) to form the bis(phosphine oxides) (VI).
ChemInform Abstract: Synthesis and Structure of New Phosphido‐Bridged Iron‐Cobalt and Iron‐Nickel Nitrosyl Complexes.
Authors: CHAU C.‐N. , WOJCICKI A. , CALLIGARIS M. , NARDIN G.
Published: May 2016

(III) crystallizes in P212121 with Z=4 and (V) in P21/n with Z=4.
ChemInform Abstract: Organic Chemistry of Dinuclear Metal Centers. Part 14. Synthesis, X‐Ray Structure, and Reactivity of the Ruthenium‐Ruthenium Double‐Bonded Complex (Ru2(μ‐CO)(μ‐C2Ph2)(η‐C5H5)2).
Authors: COLBORN R. E. , DYKE A. F. , GRACEY B. P. , KNOX S. A. R. , MACPHERSON K. A. , MEAD K. A. , ORPEN A. G.
Published: May 2016

The air‐stable title complex (II) (space group Pbca, Z = 8) is obtained on UV irradiation of the metallacycle (I).