bluuebunny/crossref_metadata_2025 huggingface dataset:
ChemInform Abstract: Synthesis and Acid‐Base Properties of 1‐(2‐Hydroxy‐4(5)‐nitrophenyl)‐5‐benzazolylformazans.
Authors: LIPUNOVA G. N. , KRIVONOGOVA T. I. , MARINA N. V. , GARNOVSKII A. D. , DARIENKO E. P.
Published: May 2016

Reactions of the hydrazones (I), used in substance or prepared in situ, with the diazonium salts (II) gives the formazans (III).
ChemInform Abstract: A New Synthesis of 3‐Chlorocoumarins and Synthesis of Isocoumestan.
Authors: BORSE A. P. , KELKAR S. L. , WADIA M. S.
Published: May 2016

POCl3 and the acetamide (II) form a complex which reacts with the salicylaldehydes (I) and the benzophenones (V) to give the desired 3‐chlorocoumarins (III) and (VI), respectively.
ChemInform Abstract: A Novel and Convenient Mercury(II) Mediated Synthesis of Chroman‐4‐ones.
Authors: GOPALSAMY A. , BALASUBRAMANIAN K. K.
Published: May 2016

Treatment of the (aryloxy)bromopropynes (Ia) ‐ (Ic) with Hg(II) triflate results in ring closure, producing the cyclic ketones (II) mentioned in the title.
ChemInform Abstract: Fluorocarbon Derivatives of Nitrogen. Part 14. Studies on Some (CF3)2NO‐Substituted Fluoro Aromatics. Thermal Rearrangement of 4‐(Bis‐(trifluoromethyl)aminooxy)tetrafluoropyridine.
Authors: BANKS R. E. , FALOU M. S. , FIELDS R. , OLAWORE N. O. , TIPPING A. E.
Published: May 2016

Reaction of pentafluoropyridine (I) with the hydroxylamine salt (II) (1:1 molar ratio) yields the mono‐ and bissubstituted products (III) and (IV) which are separated by chromatographic methods.
ChemInform Abstract: “Schizoid” Reactivity of N‐Benzylidenaniline Toward Clay‐Catalyzed Cycloadditions.
Authors: CABRAL J. , LASZLO P. , MONTAUFIER M. T.
Published: May 2016

N‐Benzylidenaniline (I) reacts with the vinyl ethers (II) in the presence of a K10/Fe(III) montmorillonite catalyst to give the tetrahydroquinolines (III), together with minor amounts of the azetidines (IV).
ChemInform Abstract: The Regiochemistry and Stereochemistry of 1,3‐Dipolar Cycloaddition of a Cyclic Nitrone.
Authors: ALI S. A. , WAZEER M. I. M.
Published: May 2016

Cycloaddition of the nitrone (I) with the monosubstituted alkenes (II) yields preferentially the 2‐substituted exo‐adducts (III).
ChemInform Abstract: Preparation of Pyrido(3,4‐f)‐1,4‐oxazepines. O → N Smiles Rearrangement in 4‐Substituted 3‐Benzoylpyridines.
Authors: RADINOV R. , HAIMOVA M. , SIMOVA S. , SIMOVA E.
Published: May 2016

A preferential attack of mixed N,O‐dinucleophiles on the pyridine (I) by the hydroxy function is achieved applying method A).
ChemInform Abstract: 1,3‐Dihydro‐1,3,2‐diazaborole‐ and 1,3,2‐Diazaborolidine Compounds from Alkali Metal Complexes of Aromatic Nitrogen Heterocycles and Dichloro(diisopropylamino)borane.
Authors: MARINGGELE W. , BROMM D. , MELLER A.
Published: May 2016

Reaction of isoquinoline (I) with the borane (II) yields the diazaborole (III).
ChemInform Abstract: Coordination Behavior of Biologically Active Benzothiazolines Towards Silicon(IV).
Authors: SINGH K. , SINGH R. V. , TANDON J. P.
Published: May 2016

The biologically active benzothiazolines (I) are prepared by the condensation of the appropriate aldehyde with 2‐mercaptoaniline.
ChemInform Abstract: Selective Preparation of 1‐Substituted 2,2‐Difluoroethenyl Phosphates or 1‐Hydroxyalkanephosphonates Through the Reaction of Chlorodifluoromethyl Ketones with Dialkyl or Diaryl Phosphites.
Authors: ISHIHARA T. , YAMANA M. , MAEKAWA T. , KUROBOSHI M. , ANDO T.
Published: May 2016

Coupling of the chlorodifluoromethyl ketones (I) with the phosphites (II) in refluxing THF yields the difluoroalkenyl phosphates (III).
ChemInform Abstract: Stereochemistry of PtO2‐Catalyzed Hydrogenation of (Ethylenebis(indenyl))zirconium Dichloride.
Authors: WAYMOUTH R. M. , BANGERTER F. , PINO P.
Published: May 2016

Catalytic deuteration of the title compound with PtO2 under 100 bar of D2 in CH2Cl2 is carried out to give ethylenebis(4,5,6,7‐tetradeuterio‐1‐indenyl)zirconium dichloride.
ChemInform Abstract: Synthesis of Heterocyclic Compounds Containing Germanium and Nitrogen as Hetero‐Atoms. Part 1.
Authors: SHITARA K. , SATO Y. , NAKAGAWA R.
Published: May 2016

The five‐ and six‐membered heterocyclic compounds (VI), (XI), and (XIV) containing both germanium and nitrogen are synthesized from chloro‐(chloromethyl)dimethylgermane (II) and primary amines.
ChemInform Abstract: Monomeric and Dimeric Ruthenium(II) η2‐Dihydrogen Complexes with Tricyclohexylphosphine Coligands.
Authors: ARLIGUIE T. , CHAUDRET B. , MORRIS R. H. , SELLA A.
Published: May 2016

The recently described hexahydride complex RuH6L2 (L: tris(cyclohexyl)phosphine) is reformulated as (I) consistent with its spectra and chemistry.
ChemInform Abstract: Stereospecific Synthesis of Squalenoid Epoxide Vinyl Ethers as Inhibitors of 2,3‐Oxidosqualene Cyclase.
Authors: CERUTI M. , VIOLA F. , DOSIO F. , CATTEL L. , BOUVIER‐NAVE P. , UGLIENGO P.
Published: May 2016

The synthesis of the title compounds (VI) and (VII) involves the preparation of the bromohydrins (II) by a new method via a one‐step cleavage of lipophilic epoxides (Ia)/(Ib) using HIO4 in Et2O, and the subsequent reaction of (II) with the phosphine oxide (IV) which is reported to give the isomers (Va) and (Vb).
ChemInform Abstract: Secondary Mould Metabolites. Part 19. Structure Elucidation and Absolute Configuration of Melledonals B and C, Novel Antibacterial Sesquiterpenoids from Armillaria mellea. X‐Ray Molecular Structure of Melledonal C.
Authors: ARNONE A. , CARDILLO R. , NASINI G. , MEILLE S. V.
Published: May 2016

The absolute configuration and the preferred conformation, both in the solid state and in solution of melledonal C (Ic) are determined by 1H and 13C NMR spectroscopy and by X‐ray analysis.
ChemInform Abstract: 10β‐Chloro‐17β‐hydroxyestra‐1,4‐dien‐3‐one and Its Related Compounds.
Authors: MUKAWA F.
Published: May 2016

Halogeno‐labeled estrogen derivatives may be applied in clinical tests for the determination of the course of therapy of hormone‐dependent tumors.
ChemInform Abstract: An Improvement of the Anderson Test by the Use of High Performance Liquid Chromatography.
Authors: MIYAZAWA T. , YAMADA T. , KUWATA S.
Published: May 2016

The model coupling of Z‐Gly‐L‐Phe‐OH with Gly‐O‐Et to give the peptide (Ia) proposed by Anderson to test the racemization in peptide coupling is varied by replacement of the N‐benzyloxycarbonyl group of (Ia) by Z‐Ala.
ChemInform Abstract: Pheromone Synthesis. Part 108. A New Synthesis of (‐)‐α‐Multistriatin (IX), the Pheromone of the Smaller European Elm Bark Beetle.
Authors: MORI K. , SEU Y.‐B.
Published: May 2016

Pheromone Synthesis.
ChemInform Abstract: Sulfur and Selenium Compounds. Part 116. 77Se NMR Spectra of Se7 and Se5S2 Prepared from Titanocene Pentaselenide; Evidence for Pseudorotation.
Authors: STEUDEL R. , PAPAVASSILIOU M. , KRAMPE W.
Published: May 2016

Titanocene pentaselenide react with the sulfur and selenium chlorides S2Cl2 and Se2Cl2 in CS2 to give Se5S2 and Se7, respectively.
ChemInform Abstract: HxMoO3 Bronzes: Structures, Stabilities, and Electronic Properties.
Authors: MEHANDRU S. P. , ANDERSON A. B.
Published: May 2016

In the course of this theoretical study it is predicted that H. adsorbs most strongly on the basal plane O2‐ for the low as well as high hydrogen content bronze and that for the higher hydrogen content bronze OH2 groups are formed.
ChemInform Abstract: Structural Distortion of Fe4S4I2‐ 2 Clusters Through Iodine‐Iodine Contacts: Crystal Structures of (Ph4P)2Fe4S4I4 (I) and (Me3NCH2Ph)2Fe4S4I4 (II).
Authors: POHL S. , SAAK W.
Published: May 2016

The title compounds are prepared in 95% yield by previously described procedures.
ChemInform Abstract: Sr5Al2Sb6 (I) and Ba5In2Sb6 (II), Two New Zintl Phases with Different Chain Anions.
Authors: CORDIER G. , STELTER M.
Published: May 2016

The title compounds are obtained by heating appropriate mixtures of the elements to 1270 K under argon.
ChemInform Abstract: Equilibrium Study of the Adsorption of Molybdenum(VI) on Activated Carbon.
Authors: CRUYWAGEN J. J. , DE WET H. F.
Published: May 2016

Molybdenum is strongly adsorbed by activated carbon in the pH range 1.0‐5.0.
ChemInform Abstract: Crystal and Molecular Structure, Magnetic and Spectral Properties of Triaquobis(quinoxaline)copper(II) Perchlorate.
Authors: LUMME P. , LINDROOS S. , LINDELL E.
Published: May 2016

The distorted trigonal‐bipyramidal title complex is prepared by 1:2 molar reaction of Cu(ClO4)2·6 H2O with quinoxaline in ethyl acetate (no yield given).
ChemInform Abstract: Decreased Overall Basicity of a Series of New N,N′‐Bis(carboxymethyl) Macrocyclic Ether‐Bis(lactone) Ligands Derived from EDTA and the Ring Size Effect on the Stability Constants of Their Lanthanoid Complexes.
Authors: CHANG C. A. , CHANG P. H.‐L. , QIN S.‐Y.
Published: May 2016

In order to examine the effects of the position of the nitrogen donor atoms and relative coordination sites of the two carboxylate groups on lanthanoid complexation the title macrocyclic ligands (III) are prepared as shown.
ChemInform Abstract: Steric Effects of Nitro and Methoxy Groups in 2,2′‐Bridged Biphenyls.
Authors: INSOLE J. M.
Published: May 2016

The bridged dinitro biphenyls (IV), (VII), and (VIII) are prepared each in both enantiomeric forms as shown in the scheme for one enantiomer of the respective compounds.
ChemInform Abstract: An Efficient Electrophile‐Initiated Homoconjugate Addition of Acetate to Cyclopropyl Ketones.
Authors: RIGBY J. H. , SENANAYAKE C.
Published: May 2016

Cleavage of the fused cyclopropanones (I) and (VII) with acetic anhydride (II) in the presence of boron trifluoride etherate leads to the formation of the unsaturated diacetates (III) and (IV) or (VIII).
ChemInform Abstract: Cycloadditions. Part 36. A Novel Method of Ring Formation with Functionalized Angular Methyl Groups. Limitations and MM2 Calculations.
Authors: HASSNER A. , AMARASEKARA A. S. , PADWA A. , BULLOCK W. H.
Published: May 2016

The ring closure of the nitrile oxides (VII) via intramolecular 1,3‐dipolar cycloaddition reaction is investigated.
ChemInform Abstract: A Selective Synthesis of α‐Methylene‐β‐hydroxyalkanones Catalzyed by RuH2(PPh3)4.
Authors: MATSUDA I. , SHIBATA M. , SATO S.
Published: May 2016

The C‐C coupling between the vinyl ketones (I) and the aldehydes (II) is catalyzed by a ruthenium hydride complex.
ChemInform Abstract: Carbon‐Carbon Bond Formation Through the Carbonylation of Lithium Dialkylamides. One‐Pot Synthesis of N‐Alkyl Substituted Formamides, Glyoxylamides, and Hydroxymalonamides.
Authors: PEREZ D. G. , NUDELMAN N. S.
Published: May 2016

The reaction mentioned in the title is investigated in order to determine the influence of the substituents at the amino group, of solvents, and temperature on the distribution of the products (V) ‐ (VII).
ChemInform Abstract: A Convenient Pyrolytic Synthesis of Thioacrylamides.
Authors: KHALID M. , VALLEE Y. , RIPOLL J.‐L.
Published: May 2016

The dibenzobicyclooctanecarboxamide (I) is converted to the thioamide (IIa).
ChemInform Abstract: Stereochemical Aspects of Catalytic Hydrogenation of 2,3‐Di‐ and 2,3,4‐Trisubstituted 2‐Cyclopenten‐1‐ones and Reactivity of the Resulting Cyclopentanones.
Authors: LOZA E. , LOLA D. , FREIMANIS J. , TUROVSKIS I. , ROZITE S. , BOKALDERE R. , SAHARTOVA O.
Published: May 2016

Hydrogenation of the enone moiety in the cyclopentenone (I) yields all possible isomers of the silyl derivatives (III)‐(VII), each of which can be isolated with 87‐97% purity, together with small amounts of the methyl ethers (VII) and (VIII).
ChemInform Abstract: Electroactive Organic Materials. Preparation and Properties of 2‐(2′‐Hydroxyethoxy)‐7,7,8,8‐tetracyano‐p‐quinodimethane.
Authors: MIURA Y. , TORRES E. , PANETTA C. A. , METZGER R. M.
Published: May 2016

The key step in the synthesis of the title compound (X) is the elimination of hydroxytrimethylsilane from the bis(dicyanosiloxymethyl)phenol ether (VIII).
ChemInform Abstract: The Effect of Nitrogen Donors on the Reactivity of Copper(I) Aryloxides: Synthesis of Thionocarbonates.
Authors: NARASIMHAMURTHY N. , SAMUELSON A. G.
Published: May 2016

The phenoxides (I) react with triethylamine (II) and cuprous chloride (III) to form the complexes (IV) which are treated with carbon disulfide (V) to give the symmetric thionocarbonates (VI).
ChemInform Abstract: Synthesis and X‐Ray Structure Determination of Two 1,2‐Diphenyl Derivatives of Cyclopropane: Effects of the Aromatic Substituents on the Geometry of the Small Ring.
Authors: TINANT B. , WU S. , DECLERCQ J.‐P. , VAN MEERSSCHE M. , LEROY D. , WEILER J.
Published: May 2016

Cycloaddition reaction of the stilbene derivatives (I) and (IV) with the diazoalkanes (II) or (V) yields pyrazolines which decompose either in situ or upon heating.
ChemInform Abstract: Diisophorone and Related Compounds. Part 19. Synthesis and Reactions of 6,8‐Dibromodiisophorones.
Authors: KURZER F. , MITCHELL J. B. O. , PATEL J. N.
Published: May 2016

Treatment of the diisophorone derivatives (I) with 2 equiv. NBS results in the formation of single isomers (III) (probably 6α‐ax, 8β‐eq); the intermediates (II) are accessible in 35/56% yield by using 1 equiv. NBS.
ChemInform Abstract: Introduction of Carbon Substituents into Oxyanthraquinones Using Acetylenic Condensation Reactions.
Authors: MOROZ A. A. , GALEVSKAYA T. P. , SHVARTSBERG M. S.
Published: May 2016

Coupling of 1‐hydroxy‐4‐iodoanthraquinone (Ia) with phenylacetylene (II) in the presence of a Pd/Cu‐catalyst or of the methoxy compound (Ib) with the copper acetylenide (IV) gives the phenylethynyl derivatives (III).
ChemInform Abstract: Improved Synthesis of 3‐Substituted 7‐Methoxybenzofurans, Useful Intermediates for Preparation of Morphine Analogues.
Authors: JUNG M. E. , ABRECHT S.
Published: May 2016

2,3‐Dimethoxybenzoyl chloride (I), prepared from the corresponding benzoic acid, is converted to the diazo ketone (III) which is directly subjected to acid‐induced ring‐closure, yielding the benzofuranone (IV).
ChemInform Abstract: Synthesis of Some Indole Derivatives.
Authors: HOGALE M. B. , SALUNKHE V. K. , KACHARE D. S.
Published: May 2016

The indole derivative (V) is obtained from the N‐cyanoethylaniline (III) by coupling with 1‐benzoylethyl bromide (IV), followed by cyclodehydration in the presence of P2O5.
ChemInform Abstract: A Route to the Pyrrolizidine Ring System Using a Novel Radical Cyclization.
Authors: LATHBURY D. C. , PARSONS P. J. , PINTO I.
Published: May 2016

Ring enlargement of the cyclopropanes (I) yields the pyrrolines (II) which undergo Diels‐Alder reaction with the butadiene precursor (III) to give the hexahydroindoles (IV).
ChemInform Abstract: Synthesis of Indolizines from N‐(2,2,2‐Trifluoroethyl)pyridinium Triflate. Evidence for the Generation of Pyridinium (Trifluoromethyl)methylide.
Authors: BANKS R. E. , MOHIALDIN S. N.
Published: May 2016

The methylide (II), formed by treatment of pyridinium triflate (I) with bases, is trapped with the acetylenes (III) to produce the dihydroindolizines (IV) which are partly dehydrogenated to form the indolizines (V).
ChemInform Abstract: Optically Enriched Alkyltrimethylsilanes by Haller‐Bauer Cleavage of Optically Active, Non‐Enolizable α‐Silyl Phenyl Ketones.
Authors: PAQUETTE L. A. , GILDAY J. P. , RA C. S. , HOPPE M.
Published: May 2016

The chiral menthyl esters (I) are converted to the phenyl ketones (III) by consecutive reductive cleavage, phenylation, and oxidation.
ChemInform Abstract: Reactions of (C5Me5)M(2,3‐dimethyl‐1,3‐butadiene)Cl (M: Ti, Hf) with Symmetrical Acetylenes.
Authors: HESSEN B. , TEUBEN J. H.
Published: May 2016

The reactivity of the electronically unsaturated diene title complexes (I) with sym. acetylenes CH≡CH, (II), and (IV) is reported.
ChemInform Abstract: Main Group Metal Halide Complexes with Sterically Hindered Thioureas. Part 8. Complexes of Lead(II) Halides with 1,3‐Dimethyl‐2(3H)‐imidazolethione.
Authors: WILLIAMS D. J. , JONES R. L. , POOR P. H.
Published: May 2016

Reactions of PbCl2 and Pb(SCN)2 with an excess of the title ligand in hot water lead to the probably anion‐bridged, polymeric complexes (I) and (II).
ChemInform Abstract: Synthesis and Characterization of cis‐Dioxomolybdenum(VI) Complexes with Sterically Bulky Tripodal Tetradentate Ligands.
Authors: COOK C. J. , TOPICH J.
Published: May 2016

The title ligands, containing two potential ionizable hydrogens, are synthesized as shown in the scheme.
ChemInform Abstract: Charge‐Transfer‐Assisted Polynucleation Reactions. A Trinuclear Carbonyltungsten Complex of Ambident 4,4′‐Bipyrimidine.
Authors: ERNST S. , KAIM W.
Published: May 2016

The efficient back bonding in the complex (I) increases the basicity at the other coordination centers of the ligand.
ChemInform Abstract: Magnetic and Spectroscopic Characterization of an Iron Porphyrin Peroxide Complex. Peroxoferrioctaethylporphyrin(1‐).
Authors: BURSTYN J. N. , ROE J. A. , MIKSZTAL A. R. , SHAEVITZ B. A. , LANG G. , VALENTINE J. S.
Published: May 2016

The title complex (I), which is possibly analogous to an oxygenated intermediate involved in reactions of cytochrome P 450, is prepared by reaction of chloro‐octaethylporphyrinatoiron(III) with tetramethylammonium superoxide in MeCN.
ChemInform Abstract: Copper(II) Complexes with Schiff Base Ligands. Synthesis of Some Copper(II) Complexes with Ligands Derived from the Reaction of Pyridine‐2‐carboxaldehydes and Aromatic Amines.
Authors: JOHNSON D. W. , MAYER H. K. , MINARD J. P. , BANATICLA J. , MILLER C.
Published: May 2016

The Schiff base ligands, prepared by refluxing the pyridine‐2‐carboxaldehydes with appropriate amines in benzene, react with Cu(II) tetrafluoroborate in hot MeOH to give the title complexes (I).
ChemInform Abstract: Spectroscopic and Electrical Properties of the Pt(II)S2N2 Type Complexes and Their Iodine‐Doped Analogs.
Authors: MATSUBAYASHI G. , HIRAO M. , TANAKA T.
Published: May 2016

The Pt(II) complexes (III) are prepared as shown.
ChemInform Abstract: Synthesis of Enkephalin Analogues. Part 2. Analogues of Lengthened and Shortened Sequence.
Authors: PARUSZEWSKI R. , MATUSIAK R. , ROSTAFINSKA‐SUCHAR G. , GUMULKA S. , KRZASCIK P.
Published: May 2016

The peptides (I)‐(III) are synthesized according to common procedures.
ChemInform Abstract: Peptide Synthesis Using the Pyrrole Ring as an Amino Protecting Group.
Authors: KASHIMA C. , MARUYAMA T. , HARADA K. , HIBI S. , OMOTE Y.
Published: May 2016

The N‐termini of various amino acids such as (Ia), (Ib), or esters (Ic), (Id) (as hydrochlorides) are protected with a pyrrole ring by treatment with the compounds (II) or (IV) (→ (III), (V)).
ChemInform Abstract: Wittig Reactions on Unprotected Aldohexoses: Formation of Optically Active Tetrahydrofurans and Tetrahydropyrans.
Authors: DAVIDSON A. H. , HUGHES L. R. , QURESHI S. S. , WRIGHT B.
Published: May 2016

Glucose (I) reacts with the sulfonylphosphonate (II) to form the tetrahydrofurans (IV) after acetylation.
ChemInform Abstract: Derivatives of Tetra‐ and Hexahydrodibenzofurans as Morphine Analogues. Part 1. Synthesis and Stereospecific Epoxidation of Intermediate Arylalkylcyclohexenes.
Authors: LABIDALLE S. , MIN Z. Y. , REYNET A. , MOSKOWITZ H. , VIERFOND J.‐M. , MIOCQUE M. , BUCOURT R. , THAL C.
Published: May 2016

Claisen‐Eschenmoser reaction of ethers, e.g. (IV), leads to arylalkylcyclohexenes such as (VI).
ChemInform Abstract: Reaction of Four‐Membered Cyclic Nitrones with Acetyl Chloride. X‐Ray Crystal Structures of 2‐((Acetyloxy)amino)‐N,N‐diethyl‐2‐methyl‐4‐oxo‐3‐phenylpentanamide and 1‐Acetyl‐3‐chloro‐N,N‐diethyl‐2‐methyl‐4‐methylene‐3‐phenyl‐2‐azetidinecarboxamide.
Authors: VAN EIJK P. J. S. S. , TROMPENAARS W. P. , REINHOUDT D. N. , HARKEMA S.
Published: May 2016

Reactions of four‐membered cyclic nitrones such as (I) with acetyl chloride (II) in the presence of water gives the alkanamides (III) whereas under anhydrous conditions the azetidine carboxamides (IV) are formed from (Ia)‐(Ic) or the compound (V) is formed from (Id).
ChemInform Abstract: A Novel Method for the Synthesis of 9‐Benzyl‐6‐(2‐methylhydrazino)purine and 1‐Methyl‐4‐(2‐methylhydrazino)‐1H‐pyrazolo(3,4‐d)pyrimidine.
Authors: HOSMANE R. S. , LIM B. B.
Published: May 2016

The 5‐amino‐4‐cyanodiazoles (I) are converted to the formimidates (III) by reaction with trimethyl orthoformate (II).
ChemInform Abstract: Chiral Synthesis via Organoboranes. Part 12. Conversion of Boronic Esters of Essentially 100% Optical Purity into Monoalkylthexylboranes Providing Convenient Synthetic Routes to trans‐Olefins, cis‐Olefins, Alkynes, and Ketones of Very High Enantiomeric Purities.
Authors: BROWN H. C. , BAKSHI R. K. , SINGARAM B.
Published: May 2016

2‐Alkyl‐dioxaborinanes of essentially 100% optically purity, such as (VI) prepared from components such as (I) and (II), can be transformed to monoalkylthexylboranes such as (XI) as outlined on the scheme.
ChemInform Abstract: Asymmetric Synthesis via Heterocyclic Intermediates. Part 37. Asymmetric Synthesis of Dimethyl (R)‐2‐Amino‐E‐hept‐4‐enedioates by the Bislactim Ether Method.
Authors: PETTIG D. , SCHOELLKOPF U. +
Published: May 2016

Michael addition reaction of the lithiated bislactim ether (III) of cyclo‐(L‐Val‐Gly) (I) with the 2,4‐pentadienoates (IV) proceeds regioselectively, forming only one diastereomer of the adducts (V).
ChemInform Abstract: Unusual Anthelminthic Oxazoles from a Marine Sponge.
Authors: ADAMCZESKI M. , QUINOA E. , CREWS P.
Published: May 2016

The constituents (Ia) (= bengazole A) and (Ib) (= bengazole B) are isolated from a Jaspidae Fiji sponge and shown to possess anthelminthic acitivity.
ChemInform Abstract: An Improved Synthesis of the Antithyroid Factor DL‐Goitrin.
Authors: BRANDSMA L. , BOS K. D. , KEEGSTRA M. A. , VERKRUIJSSE H. D.
Published: May 2016

Using excess KCN and glacial AcOH the difficulties can be avoided arising from moisture in the synthesis of the cyanohydrin (IV).
ChemInform Abstract: The Amido‐Ammine Bridging Ligand (H5N‐ 2).
Authors: HECK L. , ARDON M. , BINO A. , ZAPP J.
Published: May 2016

The single crystal XRD data of compound (II) (space group P1, Z=2) confirms the existence of a bridging (H5N2‐) ligand.
ChemInform Abstract: Defect Structure and Electrical Properties of Single‐Crystal Ba0.03Sr0.97TiO3.
Authors: CHOI G. M. , TULLER H. L.
Published: May 2016

Measurements of the electrical conductivity and thermoelectric power of the title compound over the temp. range 800‐1100 °C at oxygen partial pressures of 1·105‐1·10‐15 Pa support a defect model which includes doubly ionized oxygen vacancies, electrons, holes, and background levels of acceptor impurities.
ChemInform Abstract: Anodic Behavior of Carbon Steel in Concentrated NaOH Solutions.
Authors: ZOU J.‐Y. , CHIN D.‐T.
Published: May 2016

The anodic behavior of a carbon steel rotating disk electrode in deaerated 1‐9 N NaOH solutions at 25‐80 °C is examined over a potential range from active to transpassive potentials.
ChemInform Abstract: Theoretical Elucidation of the Origin of the Anomalously High Acidity of Meldrum′s Acid.
Authors: WANG X. , HOUK K. N.
Published: May 2016

Investigation of the acidity of syn and anti Me‐CO‐O‐Me using ab initio calculations with several basis sets indicates that the deprotonation of the anti conformer requires 5.4 kcal/mol less energy than that of the syn conformer.
ChemInform Abstract: Antiparasitic Agents. Part 6. Synthesis of 1,2‐, 1,3‐ and 1,4‐Bis(4‐substituted aryloxy)benzenes and Their Biological Activities.
Authors: CHAUHAN P. M. S. , IYER R. N. , BHAKUNI D. S. , SHANKHDHAR V. , GURU P. Y. , SEN A. B.
Published: May 2016

The diamidine (IV), its meta and para isomer as well as a series of analogues are prepared in order to test their antileishmanial (in vitro and in vivo) and antimicrobial activity.
ChemInform Abstract: New Method of Separation of Hydroxydiphenylphthalide Isomers from Their Reaction Mixture.
Authors: GRONOWSKA J. , MIECZNIK P.
Published: May 2016

The reaction between the acid (I) and phenol (II) yields a mixture of the main product (III) and its isomer (IV).
ChemInform Abstract: Stereospecific Synthesis of 2,3‐Dimethyl‐1,4‐thiamorpholines by Cyclization of β‐N‐Methoxycarbonylaminoalkyl Vinyl Sulfoxides and Related Compounds.
Authors: BRUNET E. , GALLEGO M. T. , GARCIA RUANO J. L. , PARELLADA D. , RODRIGUEZ J. H. , URBANO A.
Published: May 2016

Starting from the erythro‐(I), the α‐ and β‐sulfoxides (V) and (VII) are prepared as separable diastereomeric mixture (no ratio given) via the aziridine (III).
ChemInform Abstract: Substituted 3‐Chloro‐2H‐1,2,4,6‐thiatriazine 1,1‐Dioxides, Their Synthesis and Reactions. Part 2.
Authors: HAMPRECHT G.
Published: May 2016

The novel dioxides (II) and (IV) are prepared as shown.
ChemInform Abstract: Synthesis of 5‐Phenyl‐2‐thioxo‐1,3,4‐benzotriazepines.
Authors: RICHTER P. , MORGENSTERN O. , BESCH A.
Published: May 2016

The title compounds (XV) are prepared by four different methods: by cyclization of the thiosemicarbazides (V) or the hydrazones (XII) or (XIV) or by sulfuration of the oxo analogues (XVI).
ChemInform Abstract: Formation and Reaction Chemistry of Trimethylamine‐Trimethylphosphine‐Diborane(4).
Authors: DEPOY R. E. , KODAMA G.
Published: May 2016

Whereas the trimethylamine adduct of B3H7 reacts with PMe3 to give the bis‐phosphine adduct of diborane, the trimethylphosphine adduct (I) reacts with NMe3 (II) to yield the mixed‐ligand adduct (III), which is characterized by 11B(1H) NMR spectroscopy.
ChemInform Abstract: Formation of the Novel Neopentylideneborane Me3Si(But)N=B=CHBut from the Tantalum Neopentylidene Complex ((η‐C5H5)Cl2Ta=CHBut) by Metathesis.
Authors: MANNERS I. , PAETZOLD P.
Published: May 2016

Metathesis of the cyclic tantalum compound (III), prepared from the tantalum alkylidene complex (I) and the aminoiminoborane (II) by cycloaddition reaction, yields the tantalum imido complex (IV) and the organoboron compound (V) mentioned in the title.
ChemInform Abstract: Solid‐State and Solution Chemistry of Calcium N‐(Phosphonomethyl)glycinate.
Authors: SMITH P. H. , RAYMOND K. N.
Published: May 2016

The solid‐state and solution chemistry of the Ca salt (I) of N‐(phosphonomethyl)glycine (glyphosate) is investigated.
ChemInform Abstract: Low‐Symmetry, Mixed‐Valent, μ‐Oxo Technetium Complexes with Pyridine and Halide Ligands.
Authors: CLARKE M. J. , KASTNER M. E. , PODBIELSKI L. A. , FACKLER P. H. , SCHREIFELS J. , MEINKEN G. , SRIVASTAVA S. C.
Published: May 2016

The dinuclear dissym.
ChemInform Abstract: Detection of the Fe‐O‐O‐Fe Intermediate in the Oxidation Reaction of Ferrous Porphyrins by Resonance Raman Spectroscopy.
Authors: PAENG I. R. , SHIWAKU H. , NAKAMOTO K.
Published: May 2016

The oxidation of tetramesitylporphyrinatoiron(II) in toluene saturated with O2 to give a μ‐oxo dimer via three intermediates, is followed spectroscopically.
ChemInform Abstract: 5‐Demethylretinal and Its 5‐2H, 7‐2H and 5,7‐2H2 Isotopomers. Synthesis, Photochemistry and Spectroscopy.
Authors: SPIJKER‐ASSINK M. B. , WINKEL C. , BALDWIN G. S. , LUGTENBURG J.
Published: May 2016

The readily available keto ester (II) is converted to the undeuterated and deuterated aldehydes (III) from which the title compounds as mostly separable mixtures of all‐trans‐((VIa)‐(VId)), 13‐cis‐((VIIa)‐(VIId)), 11‐cis‐((VIIIa)‐(VIIId)), and 9‐cis‐((IXa)‐(IXb)) isomers are obtained.
ChemInform Abstract: Diacylamines ‐ Perfect Acylating Agents for Peptide Synthesis.
Authors: GRUSZECKI W. , GRUSZECKA M. , BRADACZEK H.
Published: May 2016

A series of 2,6‐dichlorobenzoyl (DCB) acylamines such as (III) containing N‐protected amino acids is prepared starting from (I) and (II).
ChemInform Abstract: N,N′‐Bis(2‐oxo‐3‐oxazolidinyl)phosphorodiamidic Azide: A Useful Coupling Agent in Peptide Synthesis.
Authors: KATTI S. B. , MISRA P. K. , HAQ W. , MATHUR K. B.
Published: May 2016

The title compound (I), prepared according to a literature procedure, is shown to be an efficient coupling reagent in peptide synthesis.
ChemInform Abstract: Stereoselective Synthesis of C‐Glycosyl Compounds via Michael Addition of Trimethylsilyl Enol Ethers and Enamines to Hex‐1‐enopyran‐3‐uloses.
Authors: KUNZ H. , MUELLER B. + , WEISSMUELLER J. +
Published: May 2016

Titanium(IV)‐catalyzed reaction of the trimethylsilyl enol ethers (II) with the enuloses (I) gives the C‐glycosyl compounds (III) via Michael addition.
ChemInform Abstract: Glycosyl Imidates. Part 22. C‐Glucosylarenes from O‐α‐D‐Glucosyl Trichloroacetimidates. Structure of Bergenin Derivatives.
Authors: SCHMIDT R. R. , EFFENBERGER G.
Published: May 2016

C‐Glycosylation of the oxysubstituted benzene derivatives (II) with O‐α‐D‐glucopyranosyl trichloroacetimidate (Ia) in the presence of a Lewis acid gives the β‐D‐glucopyranosyl arenes (III) as the main products.
ChemInform Abstract: Chemistry of Organosilicon Compounds. Part 218. Stereoselective Synthesis of 3‐(D‐Glycopyranosyl)propenes by Use of Allylsilanes.
Authors: HOSOMI A. , SAKATA Y. , SAKURAI H.
Published: May 2016

Reaction of the allylsilanes (II) with the methyl pyranosides or pyranosyl chlorides (I) and (IV) gives stereoselectively the corresponding C‐α‐D‐glycosides (III) and (V).
ChemInform Abstract: Reductions of Methyl 2,3‐Di‐O‐benzyl‐4‐deoxy‐β‐L‐threo‐hex‐4‐enodialdopyranoside.
Authors: GIULIANO R. M. , BUZBY J. H.
Published: May 2016

Short‐time catalytic hydrogenation of the unsaturated 6‐aldehydo sugar derivative (I) yields the β‐L‐configurated aldehyde (IIa), whereas the more stable α‐D‐isomer (IIb) is formed at longer reduction times.
ChemInform Abstract: Fluorides with Tetravalent Copper: Cs2(CuF6).
Authors: KISSEL D. , HOPPE R.
Published: May 2016

For the first time, single crystals of the title compound (III) are prepared.
ChemInform Abstract: On BaFeF4.
Authors: AVERDUNK F. , HOPPE R.
Published: May 2016

Single crystals of the title compound are prepared by reduction of a BaF2/FeF3 (1:1) mixture in a Fe‐tube (wall reaction, 750 °C, 60 d).
ChemInform Abstract: Crystal Structures of Acid Hydrates and Oxonium Salts. Part 25. Fluorides and Fluoro Acids. Part 15. The Crystalline Hydrates of Hexafluorosilicic Acid: A Combined Phase‐Analytical and Structural Study.
Authors: MOOTZ D. , OELLERS E.‐J.
Published: May 2016

The H2SiF6‐H2O system is investigated by DTA and XRD and the melting diagram is determined for the range of 80‐100 mol% H2O. In this range, three crystalline hydrates, H2SiF6·nH2O (n: 4, 6, 9.5) (Ia)‐(Ic) exist.
ChemInform Abstract: Simplex Optimization of Electroreduction of Oxygen Mediated by Methyl Viologen Supported on Zeolite‐Modified Carbon Paste Electrode.
Authors: CREASY K. E. , SHAW B. R.
Published: May 2016

Incorporation of zeolite Y into a carbon paste electrode is shown to improve the efficiency of mediated electroreduction of oxygen by methyl viologen (MV) cation radical.
ChemInform Abstract: Methyl Trifluoropyruvate in Cycloaddition Reactions.
Authors: GOLUBEV A. S. , KOLOMIETS A. F. , FOKIN A. V.
Published: May 2016

Methyl trifluoropyruvate (I) reacts with diazomethane (II), ethyl diazoacetate (VI), triethyl orthoformate (VII), or cyclopentadiene (IX) to give the cycloaddition products (III) and (IV), (V), (VIII), or (X).
ChemInform Abstract: Intra‐ and Intermolecular Hetero‐Diels‐Alder Reactions. Part 17. Intramolecular Hetero‐Diels‐Alder Reaction of Alkylidene‐ and Benzylidenepyrazolones and Benzylideneisoxazolones. Investigations Toward the Conformation of the Transition State.
Authors: TIETZE L. F. , BRUMBY T. , PRETOR M. , REMBERG G.
Published: May 2016

The o‐(allyloxy)benzaldehydes (I) are coupled with the pyrazolones (II) or the isoxazolone (V) to form the allyloxybenzylidene derivatives (III) or (VI) which undergo intramolecular cycloaddition reaction, producing the hetero‐fused benzopyranopyrans (IV) or (VII) with predominance of the corresponding cis‐isomers.
ChemInform Abstract: Synthesis and Properties of Azoles and Their Derivatives. Part 17. Studies on the Ring Opening of 3,4‐Diaryl‐5‐nitroisoxazolines with Nucleophilic Reagents.
Authors: BARANSKI A. , CHOLEWKA E.
Published: May 2016

The isoxazolines (II), when treated with a stoichiometric quantity of sodium methoxide, do not afford the expected ketones (I) but undergo ring opening to give the nitriles (III) and the ester (IV).
ChemInform Abstract: Photochemistry of α,β‐Unsaturated Thiones: Cycloaddition of Thiocoumarin to Electron‐Rich and Electron‐Deficient Olefins from T1.
Authors: DEVANATHAN S. , RAMAMURTHY V.
Published: May 2016

Thiocoumarin (I), prepared from coumarin by sulfuration with P4S10, is irradiated in the presence of the olefins (II), (IV), or (VII) to yield the thietanes (III), (V) and (VI), or (VIII).
ChemInform Abstract: Structure of the Monoacylation Product of 1,4‐Diamino‐2‐methoxyanthraquinone.
Authors: BILOZOR T. K. , VOLOSHIN G. A. , YARISH M. E. , VASHCHUK S. M. , CHUIKO L. S.
Published: May 2016

The reaction between the 1,4‐diaminoanthraquinone (I) and methacryloyl chloride (II) affords the derivative (III).
ChemInform Abstract: Reactions of Aromatic Nitro Compounds. Part 58. Anionic σ‐Complexes of 9‐Nitroanthracene.
Authors: ATROSHCHENKO YU. M. , GITIS S. S. , KAMINSKII A. YA.
Published: May 2016

According to a known procedure anthracene (I), dissolved in the corresponding alcohol (II), is nitrated by HNO3 (III) to give the derivatives (IV).
ChemInform Abstract: Synthesis of Arylsulfonyl Substituted Pyrroles.
Authors: DALLA CROCE P. , GARIBOLDI P. , LA ROSA C.
Published: May 2016

The symmetrically substituted munchnones (II), prepared from the N‐acylamino acids (I), react with the arylsulfonylalkynes (III) to form the arylsulfonylpyrroles (IV).
ChemInform Abstract: Reaction of 2‐Dimethylaminomethylene‐1,3‐diones with Dinucleophiles. Part 6. Synthesis of Ethyl or Methyl 1,5‐Disubstituted 1H‐Pyrazole‐4‐carboxylates.
Authors: MENOZZI G. , MOSTI L. , SCHENONE P.
Published: May 2016

The 2‐dimethylaminomethylene‐3‐keto esters (III), prepared from the carboxylates (I) and dimethylformamide dimethyl acetal (II), react with methylhydrazine (IV) to form the pyrazolecarboxylates (V) and (VI).
ChemInform Abstract: Synthesis and Hydrolysis of Substituted Imidazolinium Salts. Behaviour of the Degradation Products on Varying pH.
Authors: FERNANDEZ B. M. , REVERDITO A. M. , PAOLUCCI G. A. , PERILLO I. A.
Published: May 2016

The imidazolinium salts (III) are cleaved upon basic treatment, forming the amides (IV) which isomerize to give the amides (V).
ChemInform Abstract: Thermal ortho‐Substitution of Phenols by Vinyl Ethers.
Authors: PINHEY J. T. , PHAN THANH XUAN PHAN THANH XUAN
Published: May 2016

Pyrolysis of a mixture of the phenols (I) and dihydropyran (II) results in formation of the tetrahydropyranyl phenols (III).
ChemInform Abstract: Synthesis and Reaction of 6‐Substituted 3‐Methoxycarbonyl‐4‐methylthio‐2H‐pyran‐2‐one Derivatives.
Authors: TOMINAGA Y. , USHIROGOCHI A. , MATSUDA Y.
Published: May 2016

The title compounds (III) are obtained by cyclocondensation of the (het)aryl methyl ketones (I) with the bis(methylthio)methylenemalonate (II).
ChemInform Abstract: Fused Pyridines. Part 7. Synthesis and Reactions of 6‐Aryl‐3‐cyano‐2(1H)‐pyridinethiones. Crystal Structure of Bis(6‐(2,4‐dimethoxyphenyl)‐3‐cyano‐2‐pyridyl) Disulfide.
Authors: NESTEROV V. N. , RODINOVSKAYA L. A. , LITVINOV V. P. , SHARANIN YU. A. , SHESTOPALOV A. M. , MORTIKOV V. YU. , SHWEDOV V. I. , SHKLOVER V. E. , STRUCHKOV YU. T.
Published: May 2016

The aroylenolates (I) react with cyanothioacetamide (II) to give regioselectively the cyanopyridinethiones (III).
ChemInform Abstract: Synthesis and Biological Characterization of Pyridohomotropanes. Structure‐Activity Relationships of Conformationally Restricted Nicotinoids.
Authors: KANNE D. B. , ABOOD L. G.
Published: May 2016

Starting with the cyano compound (I), the pyrido(3,4‐b)homotropanes (VI), (VIII), and (X) are synthesized as outlined in the reaction scheme.
ChemInform Abstract: Chiral Synthesis via Organoboranes. Part 16. Boroxazolidones Derived from α‐Amino Acids and Borinic or Boronic Esters. A Simple Procedure for Upgrading Borinates and Boronates to Materials of High Optical Purity.
Authors: BROWN H. C. , GUPTA A. K.
Published: May 2016

Reaction of the borinic acids (I) or (IV) with the L‐amino acids (II) or (V) gives the crystalline chelates (III) or (VI).
ChemInform Abstract: Silaheterocycles. Part 3. Synthesis and Reactivity of Di‐tert‐butylneopentylsilaethene, tBu2 Si=CHCH2tBu.
Authors: AUNER N.
Published: May 2016

The three di‐tert‐butylvinylsilanes (III) are prepared as shown.
ChemInform Abstract: Basicity and 29Si NMR Spectroscopic Investigations of Ethoxysiloxanes.
Authors: POPOWSKI E. , SCHULZ J. , JANCKE H. , FEIST K. , KELLING H.
Published: May 2016

The ethoxysiloxanes of the types (I)‐(V) are prepared from corresponding chlorosiloxanes by treatment with ethanol in the presence of pyridine with 40‐75% yields.
ChemInform Abstract: Formation and Reactivity of Trimethylsilylmethylcyclopentenones.
Authors: BILLINGTON D. C. , KERR W. J. , PAUSON P. L.
Published: May 2016

The cobalt complex (III), prepared from the silylpropyne (I) and octacarbonyldicobalt (II), reacts with the olefins (IV) to yield the 2‐(silylmethyl)cyclopentenones (V).
ChemInform Abstract: Hexa‐tert‐butyldigermane and Hexa‐tert‐butylcyclotrigermane Molecules with the Hitherto Longest Ge‐Ge and Ge‐C Bonds.
Authors: WEIDENBRUCH M. , GRIMM F.‐T. , HERRNDORF M. , SCHAEFER A. + , PETERS K. , VON SCHNERING H. G.
Published: May 2016

Reductive dehalogenation of the poly(tert‐butyl)chlorogermanes (I) or (V) with lithium naphthalenide gives the corresponding alkylgermanes (II) and (VI) mentioned in the title.
ChemInform Abstract: A Model for the Unsaturated Intermediate in Dissociative Electron‐Transfer‐Catalyzed Substitution Reactions of Organometallic Compounds.
Authors: DONOVAN B. T. , GEIGER W. E.
Published: May 2016

The cobaltafluorenyl complex (I) is reduced electrochemically to give the mononuclear 17e‐ anion (II) which undergoes ETC substitution reactions.
ChemInform Abstract: Cu(II) and Cu(I) Coordination Chemistry of a Novel O,O,Cl‐Chelate Ligand; Formation of a Stable Carbonylcopper Complex.
Authors: KLAEUI W. + , BUCHHOLZ E.
Published: May 2016

The tridentate chloro(dimethylphosphoryl)(dimethylphosphite)‐Ru(II) complex (III) prepared as shown reacts with Cu(II) acetate (IV) to give the bis(ligand)‐Cu(II) complex (V).
ChemInform Abstract: Synthesis and Structure of (CpRu(PPh3)2(SC2H4))OSO2CF3. A Transition‐Metal Analogue of an Episulfonium Salt.
Authors: AMARASEKERA J. , RAUCHFUSS T. B. , WILSON S. R.
Published: May 2016

The triflate Ru complex (I) prepared from its chloro‐analogue reacts with thiirane (II) to yield the stable title complex (III).
ChemInform Abstract: The Selective Monobenzylidenation of Some Monosaccharides and Their Derivatives with α,α‐Dimethoxytoluene.
Authors: PATRONI J. J. , STICK R. V. , SKELTON B. W. , WHITE A. H.
Published: May 2016

Treatment of the mannopyranoside (I) with the dimethoxytoluene (II) in DMF in the presence of an acid catalyst leads to a selective benzylidenation giving mainly the 4,6‐benzylidene derivative (III) together with the other mono‐((IVa),(IVb)) and bis‐benzylidene derivatives (Va),(Vb).
ChemInform Abstract: Hydration Energies of the Divalent Lanthanides and Alkaline Earth Elements
Authors: MIKHEEV N. B. , RUMER I. A.
Published: May 2016

are proved to be dependent on their ionic radii.
ChemInform Abstract: Quaternary System ZnSe‐Cr2Se3‐In2Se3.
Authors: OKONSKA‐KOZLOWSKA I. , KUSKE P. , LUTZ H. D.
Published: May 2016

The sections Zn1‐xIn0.667xCr2Se4 and ZnCr2‐yInySe4 as well as some samples of compositions outside these sections are investigated by XRD.
ChemInform Abstract: Synthesis and Properties of Germanium Phosphates.
Authors: MAL'SHIKOV A. E. , EGOROVA O. V. , BONDAR' I. A.
Published: May 2016

The system GeO2‐P2O5 is investigated in order to get some information about the properties of the phosphates formed by the elements of group IV.
ChemInform Abstract: Infrared Spectra of Nitrogen Adsorbed on Ion‐Exchanged ZSM‐5 Zeolite
Authors: YAMAZAKI T. , WATANUKI I. , OZAWA S. , OGINO Y.
Published: May 2016

(H+, Li+, Na+, K+, Rb+, Cs+).
ChemInform Abstract: Thermal Decomposition of K2Ti(O2)F4·H2O at High Pressure. High Pressure Synthesis of K2TiOF4·H2O and K2TiOF4.
Authors: SCHABERT M. , PAUSEWANG G.
Published: May 2016

The title compounds (II) and (III), obtained by high‐pressure thermal decomposition of (I), are found to be not identical with the compounds of the same formulae obtained under normal pressure.
ChemInform Abstract: Solvolysis of the ReO‐ 4 Anion in the HSO3Cl Solvent System; Synthesis and Characterization of an Oxobridged Binuclear Re(VII) Chlorosulfate.
Authors: ZAIDI S. A. A. , LUTFULLAH LUTFULLAH , SIDDIQI Z. A.
Published: May 2016

The dioxobridged compound (III) is isolated from solution of the perrhenates (I) in chlorosulfuric acid and is characterized by elemental analysis, magnetic measurements, and IR spectroscopy.
ChemInform Abstract: Correlation and Prediction of Gas‐Liquid Partition Coefficients in Hexadecane and Olive Oil.
Authors: ABRAHAM M. H. , FUCHS R.
Published: May 2016

A cavity theory of solution is used to derive an equation for the correlation and prediction of Ostwald solubility coefficients (as log L values) of solutes in hexadecane and olive oil: log L = a +bV + c(MR) + dμ2.
ChemInform Abstract: Novel Approach to Seven‐Membered Rings by the Intramolecular Tandem Cyclopropanation/Cope Rearrangement Sequence.
Authors: DAVIES H. M. L. , OLDENBURG C. E. M. , MCAFEE M. J. , NORDAHL J. G. , HENRETTA J. P. , ROMINES K. R.
Published: May 2016

Methyl styrylacetate (I) is converted to the α‐diazo ester (III) which reacts with cyclopentadiene (IV) in the presence of rhodium(II) acetate to yield the endo (3 + 4)cycloadduct (V).
ChemInform Abstract: Iodovinylidenelactone Synthesis. Free Radical Cyclization of Iodo Acetylenic Esters.
Authors: HAAIMA G. , WEAVERS R. T.
Published: May 2016

The cycloalkenes (I) react with N‐iodosuccinimide and the acetylenic acids (II) to give the iodocycloalkylacetylenecarboxylates (III).
ChemInform Abstract: X=Y‐ZH Systems as Potential 1,3‐Dipoles. Part 10. The Decarboxylative Route to Azomethine Ylides. Background and Relevance to Pyridoxal Decarboxylases.
Authors: ALY M. F. , GRIGG R. , THIANPATANAGUL S. , SRIDHARAN V.
Published: May 2016

The reaction of pyridoxal (I) with α‐amino acids such as (II) in the presence of N‐phenylmaleimide (III) gives rise to two series of cycloadducts.
ChemInform Abstract: Photoarylmethylation of 1,4‐Dicyanonaphthalene by Use of Group 14 Organometallic Compounds.
Authors: MIZUNO K. , TERASAKA K. , YASUEDA M. , OTSUJI Y.
Published: May 2016

Irradiation of 1,4‐dicyanonaphthalene (I) and the benzylic silanes, germanes, or stannanes (II) in the presence of sodium methoxide gives the 4‐benzyl‐1‐cyanonaphthalenes (III), together with the 3‐benzylated analogues (IV).
ChemInform Abstract: A New Method for the Synthesis of Cyclopropane with Three Electron‐Withdrawing Groups.
Authors: CHEN C. , HUANG Y.‐Z. , SHEN Y.
Published: May 2016

The olefins (I) react with the dibromomalonic acid derivatives (II) in the presence of tributylstibine (III) to give the cyclopropanes (IV).
ChemInform Abstract: Deconjugation‐Alkylation of Ethyl 3‐(Trimethylstannyl)‐2‐alkenoates. Stereocontrolled Synthesis of Ethyl 2‐Alkylidene‐3‐methylenecyclobutanecarboxylates.
Authors: PIERS E. , LU Y.‐F.
Published: May 2016

The α,β‐acetylenic carboxylates (I) react with the stannylcuprates (II), (VII), or (IX) to form the E‐stannylacrylates (III) or the Z‐isomers (VIII).
ChemInform Abstract: A Short and Efficient Synthesis of (3S,4S)‐4‐((tert‐Butyloxycarbonyl)amino)‐5‐cyclohexyl‐3‐hydroxypentanoic Acid Ethyl Ester.
Authors: SCHUDA P. F. , GREENLEE W. J. , CHAKRAVARTY P. K. , ESKOLA P.
Published: May 2016

The phenylalanine (I) is hydrogenated and then N‐protected to yield the cyclohexylalanine derivative (IV) which is coupled with the Mg enolate of the malonic acid half ester (V), producing the β‐keto ester (VI).
ChemInform Abstract: A New Synthetic Method of (2.2)Cyclophanes.
Authors: TAKEMURA H. , SHINMYOZU T. , INAZU T.
Published: May 2016

The macrocyclic diamines (I) are nitrosated to form the bis‐N‐nitrosodiamines (III) which are reductively cleaved with dithionite, yielding the (2.2)cyclophanes (IV).
ChemInform Abstract: Reaction of Adducts of Phosphorus Pentachloride and Isoprene with Arsenic Trifluoride.
Authors: FRIDLAND S. V. , MIFTAKHOV M. N.
Published: May 2016

Treatment of isoprene (I) with phosphorus pentachloride (II) gives adducts with undetermined structure which are coupled in situ with arsenic trifluoride, producing the dimethylindan (III).
ChemInform Abstract: Bromination of 1,3,5‐Trimethyl‐4‐chloropyrazole.
Authors: PEREVALOV V. P. , KARIM A. K. KH. , KHRAPOV A. V. , BARYSHNENKOVA L. I. , STEPANOV B. I.
Published: May 2016

Bromination of the trimethyl‐4‐chloropyrazole (I) with 1 mol NBS gives mainly the 5‐bromomethyl derivative (II).
ChemInform Abstract: Reaction of Isoxazoles and Isoxazolium Salts with Organometallic Reagents. Synthesis of Dihydroisoxazoles.
Authors: ALBERTOLA A. , ANTOLIN L. F. , GONZALEZ A. , LAGUNA M. A. , PULIDO F. J.
Published: May 2016

Grignard reaction of the nitroisoxazoles (I) yields the 4,5‐dihydroisoxazoles (III), whereas alkylation of the cyanoisoxazole (VI) leads either to the 2,5‐dihydro derivative (IV) or to the acyl derivative (VII).
ChemInform Abstract: Photochemistry of Pyrimidin‐2(1H)‐ones: Intermolecular Hydrogen Abstraction by an Imino Group Nitrogen.
Authors: NISHIO T. , OMOTE Y.
Published: May 2016

Irradiation of the pyrimidinones (I) in the presence of hydrogen donors, e.g. (II), affords the C‐C bonded 1:1 adducts (III) via intramolecular hydrogen atom abstraction by the excited imino nitrogen of (I).
ChemInform Abstract: Quaternary Phosphonium Salts in the Vinyl Phosphate Series.
Authors: GOLOLOBOV YU. G. , OGANESYAN A. S. , PETROVSKII P. V.
Published: May 2016

Reaction of the vinyl phosphate (I) with the phosphines (II) gives the phosphonium salts (III), the first representatives of phosphacholine esters.
ChemInform Abstract: Bis‐ and Tris(diazomethyl)phosphanes. New Building Blocks for the Synthesis of Phosphorus Heterocycles.
Authors: KELLER H. , REGITZ M.
Published: May 2016

Trimethylsilyldiazomethane (I) is lithiated and then coupled with the dichlorophosphines (II) to form the bisdiazomethylphosphanes (III) which cyclize under release of nitrogen to produce the phosphorus heterocycle (IV).
ChemInform Abstract: The Synthesis, Using Hexamethyldialuminum, and Reactivity of New (1‐5‐η‐Cyclopentadienyl)methyl(nitrosyl)molybdenum Complexes. Crystal Structure of Bromo(η5‐cyclopentadienyl)methyl(nitrosyl)(triphenylphosphine)molybdenum.
Authors: ALEGRE B. , DE JESUS E. , VAZQUEZ DE MIGUEL A. , ROYO P. , MANOTTI LANFREDI A. M. , TIRIPICCHIO A.
Published: May 2016

The selective methylation of (I) is possible with Al2Me6 yielding the new (probably dimeric) complexes (III).
ChemInform Abstract: Synthesis and Characterization of Technetium(III) Complexes with Schiff‐Base and Phosphine Ligands. Molecular Structure of (Diethylphenylphosphine)(N‐(2‐oxidophenyl)salicylideneiminato‐NOO′)(quinolin‐8‐olato‐NO)technetium(III).
Authors: MAZZI U. , REFOSCO F. , TISATO F. , BANDOLI G. , NICOLINI M.
Published: May 2016

The Tc(III) complexes (III) are prepared by 1:2 molar reaction of the oxo‐Tc(V) compounds with the phosphines (II); the second phosphine molecule is converted into the corresponding phosphine oxide.
ChemInform Abstract: Synthesis, Characterization, and X‐Ray Crystal Structures of Mononuclear Copper(II) Complexes with Unsymmetrical Quadridentate Ligands Involving an Imidazole Moiety and Discrete Imidazolate‐Bridged Binuclear Copper(II) Complexes with Non‐Identical Coordination Geometries in the Binuclear Unit.
Authors: MATSUMOTO N. , AKUI T. , MURAKAMI H. , KANESAKA J. , OHYOSHI A. , OKAWA H.
Published: May 2016

The complex (IVa) ( P21/n, Z=4) is prepared as shown in the scheme and (IVb) (P1, Z=2) analogously using the condensation product from acetylacetone and 1,3‐propanediamine instead of (I).