bluuebunny/crossref_metadata_2025 huggingface dataset:
ChemInform Abstract: An Oxo‐Bridged Binuclear Vanadium(III) 2,2′‐Bipyridine Complex and Its Vanadium(IV) and Vanadium(V) Oxidation Products.
Authors: BRAND S. G. , EDELSTEIN N. , HAWKINS C. J. , SHALIMOFF G. , SNOW M. R. , TIEKINK E. R. T.
Published: May 2016

Vanadium(III) in water reacts with bipyridine to form the oxo‐bridged complex (III) (space group Pbcn with Z = 8).
ChemInform Abstract: Synthesis of Molybdenum and Tungsten Silylimido Complexes. Structure of a Five‐Coordinate Bis(silylimido) Complex.
Authors: LICHTENHAN J. D. , CRITCHLOW S. C. , DOHERTY N. M.
Published: May 2016

Trimethylsilyl azide (II) can be used as a source of the trimethylsilylimido ligand upon reaction with oxidizable metal chloride complexes as demonstrated for the synthesis of the compounds (III).
ChemInform Abstract: Synthesis and Characterization of (Ir2(TMB)4H2)(B(C6H5)4)2·CH3C6H5.
Authors: SMITH D. C. , MARSH R. E. , SCHAEFER W. P. , LOEHR T. M. , GRAY H. B.
Published: May 2016

The excited state of the complex (I) reacts with hydrogen atom donors such as 1,4‐cyclohexadiene to give dihydride complexes as demonstrated for the formation of (II) (space group P21/c, Z=4).
ChemInform Abstract: Glycosidation. Part 13. Anticancer Agents. Part 10. Novel Stable Bioactivated Cyclophosphamide Derivatives for Selective Cancer Chemotherapy, Synthesis of Aldophosphamide Acetal‐Glycosides and Their Glycoconjugates.
Authors: TIETZE L. F. , FISCHER R. , BELLER M. , SEELE R.
Published: May 2016

Aldophosphamide is a biological active metabolite of the anticancer agent cyclophosphamide.
ChemInform Abstract: Synthetic Methods for the Preparation of Basic D‐ and L‐Pseudo‐Sugars. Synthesis of Carbocyclic Analogues of N‐Acetyl‐muramyl‐L‐alanyl‐D‐isoglutamine (MDP).
Authors: BARTON D. H. R. , AUGY‐DOREY S. , CAMARA J. , DALKO P. , DELAUMENY J. M. , GERO S. D. , QUICLET‐SIRE B. , STUETZ P. +
Published: May 2016

The carbocyclic analogue (VII) and the carbocyclic nor‐analogue (VIII) of MDP (IX) are prepared in order to modify the immunostimulating activities of this compound.
ChemInform Abstract: Preparation of 2‐Substituted Furo(3,2‐b)pyrroles and Their Reactions with Dimethyl Butynedioate.
Authors: KORENOVA A. , KRUTOSIKOVA A. , DANDAROVA M. , KOVAC J.
Published: May 2016

Reaction of the 4‐acetylfuro(3,2‐b)pyrroles (I) with the alkyl halides (II) leads to the N‐deacetylation and alkylation, forming the 4‐alkylfuro(3,2‐b)pyrroles (III).
ChemInform Abstract: 5‐Benzopyridyl‐Substituted 2‐Methyl‐ and 2‐Methyleneindolines.
Authors: TOLMACHEV A. A. , BABICHENKO L. N. , CHMILENKO T. S. , SHEINKMAN A. K.
Published: May 2016

Quinoline (I) or isoquinoline (V) react with the tetramethylindoline (II) in the presence of benzoyl chloride (III) to give the adducts (IV) and (VI) respectively.
ChemInform Abstract: Studies on Intramolecular Cycloadditions Involving 3‐Oxidopyridinium.
Authors: BROMIDGE S. M. , ARCHER D. A. , SAMMES P. G.
Published: May 2016

The betains (II) or (VI) undergo intramolecular cycloadditions to afford the tricyclic products (III) or (VII), respectively.
ChemInform Abstract: Synthesis and Properties of Methanothia‐(15)‐, ‐(17)‐, ‐(19)‐, ‐(21)‐, ‐(23)‐, ‐(25)‐, ‐(27)‐, ‐(29)‐annulene and Dimethanodithia‐(26)‐ and ‐(30)‐annulene.
Authors: OJIMA J. , HASHIMOTO T. , KATSUYAMA J. , MIYASHITA H. , FUJITA S. , KURODA S. , KANO Y. , YAMAMOTO G.
Published: May 2016

Title compounds such as (III) and (IV) are prepared via double Wittig reaction of the dicarbaldehydes (I).
ChemInform Abstract: Syntheses and Reactions of 4,5‐Disubstituted Fluorene Derivatives.
Authors: KAJIGAESHI S. , OKAMOTO K. , UCHIDA O. , FUJISAKI S. , NISHIDA A.
Published: May 2016

4,5‐Fluorenedicarboxylic acid (XII) is prepared from fluorene in a multi‐step procedure outlined in the reaction scheme.
ChemInform Abstract: MEMC Etch. A Chromium Trioxide‐Free Etchant for Delineating Dislocations and Slip in Silicon.
Authors: CHANDLER T. C.
Published: May 2016

A new etching formula is developed which is CrO3‐free and generates no hazardous waste.
ChemInform Abstract: Kinetics of N2O Decomposition on Fe3+ Supported on Pure and Li‐Modified Al2O3.
Authors: KORDULIS C. , LATSIOS H. , LYCOURGHIOTIS A. , POMONIS P.
Published: May 2016

A study of the kinetics of N2O decomposition on the surface of Fe2O3, Al2O3, and Fe2O3 supported on Al2O3 or Li‐doped Al2O3 shows that Fe2O3/Al2O3 is the most active catalyst.
ChemInform Abstract: A Convenient Reduction‐Oxidation Procedure of the Selective Epimerization at Sulfur of Highly Functionalized, Optically Active Sulfoxides.
Authors: VAN DEN BROEK L. A. G. M. , IN'T VELD P. J. A. , COLSTEE J. H. , OTTENHEIJM H. C. J.
Published: May 2016

The chiral β‐hydroxymethyl sulfoxides (Ib) and (Id) are O‐protected to form the corresponding tetrahydropyranyl ethers (Ic) and (Ie).
ChemInform Abstract: An Improvement in the Wittig‐Horner Synthesis of Allenyl Sulfones and Allenecarboxanilides Under Sonochemical Conditions.
Authors: FILLION H. , REFOUVELET B. , PERA M. H. , DUFAUD V. , LUCHE J. L.
Published: May 2016

The olefination of the ketenes (I) with the phosphonates (II) is optimized by application of ultrasound in dimethoxyethane.
ChemInform Abstract: Synthesis and Biological Activity of New HMG‐CoA Reductase Inhibitors. Part 1. Lactones of Pyridine‐ and Pyrimidine‐Substituted 3,5‐Dihydroxy‐6‐heptenoic (‐heptanoic) Acids.
Authors: BECK G. , KESSELER K. , BAADER E. , BARTMANN W. , BERGMANN A. , GRANZER E. , JENDRALLA H. , VON KEREKJARTO B. , KRAUSE R. , PAULUS E. , SCHUBERT W. , WESS G.
Published: May 2016

Wittig olefination of the chiral aldehyde (I), obtained from glucose, with the phosphonium salt (II) yields a mixture of the stereoisomeric olefins (III).
ChemInform Abstract: Facile Synthesis of 6‐Alkoxy‐2,4‐diaryl‐5‐cyanopyridine.
Authors: AL‐ARAB M. M.
Published: May 2016

Similarly to the synthesis of the title compounds (IV) (12 examples), methoxy analogues such as (V) (11 examples) are prepared using methoxide/methanol instead of ethoxide (III)/ethanol in the analogous reactions.
ChemInform Abstract: (Arylmethoxy)phenyl Carboxylic Acids, Hydroxamic Acids, Tetrazoles, and Sulfonyl Carboxamides. Potent Orally Active Leukotriene D4 Antagonists of Novel Structure.
Authors: MUSSER J. H. , KREFT A. F. , BENDER R. H. W. , KUBRAK D. M. , GRIMES D. , CARLSON R. P. , HAND J. M. , CHANG J.
Published: May 2016

Coupling of 2‐chloromethyl heterocycles such as (I) with hydroxyphenylacetates such as (II) yields esters such as (III).
ChemInform Abstract: 2,6‐Dihydroxy‐4H‐pyridazino(3,4,5‐de)quinazoline: A New Ring System.
Authors: COMBS D. W. , RAMPULLA M. S.
Published: May 2016

Reduction of the 3‐nitrophthalate (I) with cyclohexene as the hydrogen donor yields the 2‐aminophthalate, which is directly converted to the dione (III).
ChemInform Abstract: Bioisosteric Transformation of H1‐Antihistaminic Benzimidazole Derivatives.
Authors: IEMURA R. , HORI M. , SAITO T. , OHTAKA H.
Published: May 2016

According to the concept of bioisosterism of molecules or molecular moieties, the imidazopyridine (VII) and the quinazolines (XII) and (XV) are synthesized as outlined in the reaction scheme.
ChemInform Abstract: Synthesis and Antifolate Properties of 9‐Alkyl‐10‐deazaminopterins.
Authors: DEGRAW J. I. , CHRISTIE P. H. , KISLIUK R. L. , GAUMONT Y. , SIROTNAK F. M.
Published: May 2016

The carboxylic acid (I) is converted to the ‐amino ketone hydro chloride (VI).
ChemInform Abstract: 1,1′‐Bis(diphenylphosphino)bicyclopropyl: Synthesis, Properties, Precursors, Derivatives, and Metal Complexes.
Authors: DZIWOK K. , LACHMANN J. , WILKINSON D. L. , MUELLER G. + , SCHMIDBAUR H.
Published: May 2016

The title compound (IV) reacts with S8 to give the disulfide (V) (space group P21, Z=2) and with THF·BH3 to yield a 1:2 adduct with BH3.
ChemInform Abstract: Synthesis and Structures of Bis(triethanolamine)lanthanoid Complexes.
Authors: HAHN F. E. , MOHR J.
Published: May 2016

The isostructural title complexes (IV) crystallize in a monocapped tetragonal antiprismatic coordination geometry.
ChemInform Abstract: Synthesis, Structure, and Properties of Novel Chain‐Substituted and Chiral Trimethine Cyanine Dyes with Indoline End Groups.
Authors: REICHARDT C. , ENGEL H.‐D. , ALLMANN R. , KUCHARCZYK D. , KRESTEL M.
Published: May 2016

The dye (III) exists in the hitherto unknown di‐cis (E,E,Z,Z) configuration along the methine chain.
ChemInform Abstract: Carbohydrates as Chiral Templates: Stereoselective Synthesis of Chiral Homoallylamines and β‐Amino Acids.
Authors: LASCHAT S. , KUNZ H.
Published: May 2016

Reaction of the Schiff bases (I) derived from galactopyranosylamine with allyltrimethylsilane (II) in the presence of tin tetrachloride yields the adducts (III) and (IV) with predominance of the (S)‐diastereomers (III).
ChemInform Abstract: Direct Substitution of 2‐Benzenesulfonylpiperidines and ‐pyrrolidines by Carbon Nucleophiles: Synthesis of the Pyrrolidine Alkaloid Ruspolinone.
Authors: BROWN D. S. , HANSSON T. , LEY S. V.
Published: May 2016

The sulfonyl heterocycles (I), (IV), and (VII) undergo substitution reaction with Grignard compounds partly generated in situ to produce the piperidines (III) and (VI) or the unsaturated vinylpyrrolidine (IX).
ChemInform Abstract: Synthesis and in vitro Evaluation of Some Modified 4‐Thiopyrimidine Nucleosides for Prevention or Reversal of AIDS‐Associated Neurological Disorders.
Authors: PALOMINO E. , MELTSNER B. R. , KESSEL D. , HORWITZ J. P.
Published: May 2016

Starting with the thiopyrimidine nucleoside (I), the authors describe the synthesis of analogs such as (V) of AZT (3'‐azido‐3'‐deoxythymidine) as shown in the reaction scheme.
ChemInform Abstract: 6α‐(Fluoroalkyl)penicillins.
Authors: GUEST A. W. , MILNER P. H. , SOUTHGATE R.
Published: May 2016

Starting with the 6α‐hydroxymethylpenicillin derivative (I), the 6α‐fluoromethylpenicillin (VII) is prepared, the fluorination being achieved with diethylaminosulfur trifluoride in the first step of the reaction sequence.
ChemInform Abstract: Synthesis and Structure of ThTa2O7.
Authors: SCHMIDT G. , GRUEHN R.
Published: May 2016

In the ThO2‐Ta2O5 system single crystals of ThTa2O7 are obtained by chemical vapor transport (1050 → 1100 °C, 54 d) using NH4Cl as transportation agent.
ChemInform Abstract: Toward a Solvent Basicity Scale: The Calorimetry of the Pyrrole Probe.
Authors: CATALAN J. , GOMEZ J. , COUTO A. , LAYNEZ J.
Published: May 2016

The solution calorimetry of pyrrole, N‐methylpyrrole, benzene, and toluene in 35 solvents is investigated.
ChemInform Abstract: Reactions of Organic Anions. Part 167. Reactions of Carbanions from 2‐(Dialkylamino)arylacetonitriles with Acetylene ‐ Simple Syntheses of 1,3‐Dienamines and 1,4‐Diketones.
Authors: JONCZYK A. , LIPIAK D. , ZDROJEWSKI T.
Published: May 2016

The morpholinonitrile (I) reacts with acetylene (II) under the conditions shown to give the vinyl derivative (III), whereas dienamines such as (VI) are obtained from the nitriles (V).
ChemInform Abstract: An Episulfonium Ion Mediated Ring Expansion of 1‐Alkenylcycloalkanols.
Authors: KIM S. , PARK J. H.
Published: May 2016

The 1‐siloxy‐1‐vinylcycloalkanes (I), (IV), or (VI), generated from the corresponding cycloalkanones, are consecutively treated with phenylsulfenyl chloride (II) and silver tetrafluoroborate to undergo ring expansion via intermediate episulfonium ions, yielding the β‐(phenylthiomethyl)cycloalkanones (III), (V), or (VII).
ChemInform Abstract: Substitution Reactions with Octafluoronaphthalene.
Authors: CREMER H. R. , SARTORI P.
Published: May 2016

Octafluoronaphthalene (I) undergoes nucleophilic substitution reactions with alkenethiolates, e.g. (II) or (IX), yielding polyalkylthionaphthalenes as outlined in the reaction scheme.
ChemInform Abstract: Reaction of Ester Amides of Trivalent Phosphorus Acids with Metal Fluorides.
Authors: KROLEVETS A. A. , ANTIPOVA V. V. , ADAMOV A. V. , POPOV A. G. , PETROVSKII P. V. , MARTYNOV I. V.
Published: May 2016

The phosphorodichloridites (I) react with the secondary amines (II) to give the phosphoramidochloridites (III).
ChemInform Abstract: Bis(N,N‐diethylcarbamato)bis(diethylamine)palladium(II), the First Homoleptic Carbamato Complex of Palladium.
Authors: ANILLO A. , BELLI DELL'AMICO D. , CALDERAZZO F. , PELIZZI G. , ROCCHI L.
Published: May 2016

The title compound (IV) (space group P21/c, Z=2) is monomeric and the trans‐carbamato ligands are monodentate.
ChemInform Abstract: In situ FTIR Study of the Adsorption Geometry of Bisulfate Accepted Ions on a Platinum Electrode.
Authors: SAMANT M. G. , KUNIMATSU K. , SEKI H. , PHILPOTT M. R.
Published: May 2016

From a study of three IR active vibrational modes of bisulfate ions adsorbed on Pt from 0.5 M sodium sulfate solution as a function of the electrode potential and the pH, it is concluded that the HSO3‐ ions adsorb via an oxygen atom of the SO3 unit with the axis passing through the S‐(OH) bond at 72° from the surface normal in the double layer region.
ChemInform Abstract: Photoelectrochemical ESR. Part 4. The “Photo‐ECE” Reaction and the Reduction of 1‐Halogenoanthraquinones.
Authors: COMPTON R. G. , COLES B. A. , PILKINGTON M. B. G. , BETHELL D.
Published: May 2016

It is shown that the title reaction of (I) follows a photo‐ECE mechanism.
ChemInform Abstract: 7‐Oxo‐4,5,6,7‐tetrahydroindole Derivatives from Nitroolefins and Secondary α‐Keto Enamines.
Authors: BENEDETTI F. , BERTI F. , NITTI P. , PITACCO G. , VALENTIN E.
Published: May 2016

A novel synthesis of the hitherto scarcely known title compounds (III) is described.
ChemInform Abstract: Formation of Cyanines from Pyrylium Salts and Aliphatic Carboxylic Anhydrides.
Authors: PYSHCHEV A. I. , BUTENKO L. I. , OGANESYAN E. T. , KRASNIKOV V. V.
Published: May 2016

Reaction of the pyrylium salts (I) with the carboxylic anhydrides (II) produces the cyanines (III).
ChemInform Abstract: Substituted 1,4‐Dihydropyrimidines. Part 3. Synthesis of Selectively Functionalized 2‐Hetero‐1,4‐dihydropyrimidines.
Authors: ATWAL K. S. , ROVNYAK G. C. , O'REILLY B. C. , SCHWARTZ J.
Published: May 2016

Condensation reaction of the isothiourea derivative (II) with the benzylidene compounds (Ia) and (Ib) gives the dihydropyrimidines (III).
ChemInform Abstract: Cycloalkylations of N‐(ω‐Halogenoalkyl)‐substituted Macrocyclic Imides.
Authors: OGNYANOV V. I. , HESSE M.
Published: May 2016

The reaction between 2‐oxocyclododecane‐1‐carbonitrile (I) and 3‐chloropropyl isocyanate (II) affords a ring‐enlarged product, the macrocyclic imide (III).
ChemInform Abstract: High Resolution Electron Microscopy and X‐Ray Powder Diffraction Studies of Sr2Nb5O9.
Authors: SVENSSON G.
Published: May 2016

Multiphasic products containing Sr2Nb5O9 besides other phases such as SrNbO3 and NbO are obtained from the reaction of Nb2O5, Nb, and Sr5Nb4O15 at 1250 °C (evacuated silica tubes).
ChemInform Abstract: Rechargeable Sodium Batteries. Part 7. NaFeO2 and FeOCl as Positive Electrodes in Molten NaAlCl4.
Authors: ABRAHAM K. M. , PASQUARIELLO D. M.
Published: May 2016

It is found that NaFeO2 and FeOCl behave as highly reversible positive electrodes in the molten NaAlCl4 electrolyte of Na cells operating at ∼180 °C. The experimental results are not consistent with the assumption that these materials undergo insertion type discharge/charge reactions according to NaFeO2 ⇌ FeO2 + Na+ + e‐ and NaFeOCl ⇌ FeOCl + Na+ + e‐.
ChemInform Abstract: A Thermodynamic and Kinetic Study of Electrochemical Lithium Intercalation in Na0.33V2O5 Bronze Prepared by a Sol‐Gel Process.
Authors: BACH S. , PEREIRA‐RAMOS J. P. , BAFFIER N. , MESSINA R.
Published: May 2016

The thermodynamic and kinetic data obtained for the electrochemical lithium intercalation into sol‐gel derived β‐Na0.33V2O5 are in agreement with the scheme suggested for the filling of available M sites of the β‐structure by Li+.
ChemInform Abstract: Reactions of Complex Ligands. Part 39. Carbene Complexes in Intramolecular Diels‐Alder Reactions.
Authors: DOETZ K. H. + , NOACK R. , HARMS K. , MUELLER G. +
Published: May 2016

Diene‐dienophile functionalized Fischer‐type carbene complexes such as (VI) and (VII) (= E/Z mixture) are accessible from W(CO)6 (I) by a tandem nucleophilic addition/substitution sequence as exemplified in the scheme.
ChemInform Abstract: Template‐Controlled Oligomerization Support Studies. Template Synthesis and Functionalization.
Authors: FELDMAN K. S. , BOBO J. S. , ENSEL S. M. , LEE Y. B. , WEINREB P. H.
Published: May 2016

The rigid organic template (IIIa) is obtained along with its isomer (IIIb) via double Diels‐Alder cycloaddition of the anthracenecarboxylate (I) with the norbornadiene trimer (II).
ChemInform Abstract: Dye Sensitized Photooxygenation of Imidazolin‐2‐ones.
Authors: CHAWLA H. M. , PATHAK M.
Published: May 2016

The imidazolones (IIIa)‐(IIIc) are prepared by reaction of the components (I) and (II); the imidazolones (IIId) are obtained by appropriate alkylation of (IIIa).
ChemInform Abstract: Synthesis of 4‐Allyl‐4‐arylaminopiperidines and Their Transformations into Spiro(tetrahydroquinoline‐2,4′‐piperidines).
Authors: PROSTAKOV N. S. , KUZNETSOV V. V. , STASHENKO E. E.
Published: May 2016

The azomethines (I) are alkylated with allylmagnesium bromide (II) in the presence of dibenzo‐18‐crown‐6 to give the 4‐allyl‐4‐aminopiperidines (III).
ChemInform Abstract: Synthesis and Anthelmintic Activity of Methyl (5(6)‐(3‐Oxo‐1,4‐benzothiazin‐7‐yloxy)‐benzimidazole)‐2‐carbamates.
Authors: SASTRY C. V. R. , RAO K. S. , KRISHNAN V. S. H. , RASTOGI K. , LOVEKAR C. D. , TRIPATHI H. N. , KONDAIAH S. , SAI G. S. T.
Published: May 2016

The title compound (VIIIa) exhibits the highest order of anti‐hookworm activity.
ChemInform Abstract: The “Phospha‐Wittig” Reaction: A New Method for Building Phosphorus‐Carbon Double and Single Bonds from Carbonyl Compounds.
Authors: MARINETTI A. , BAUER S. , RICARD L. , MATHEY F.
Published: May 2016

Reactions of the so‐called "phospha‐Wittig" reagents (III) with carbonyl compounds are investigated.
ChemInform Abstract: Synthesis of Chiral Square Planar Cobalt(III) Complexes and Catalytic Asymmetric Epoxidations with These Complexes.
Authors: OZAKI S. , MIMURA H. , YASUHARA N. , MASUI M. , YAMAGATA Y. , TOMITA K. , COLLINS T. J.
Published: May 2016

The chiral square planar Co(III) complexes (I) and (II) are prepared by known methods using the corresponding optically active ligand and Co(OAc)2 with an excess of NaOH in ethanol under air.
ChemInform Abstract: The IR Spectrum of Barium Oxide in the Gas Phase
Authors: HEDDERICH H. G. , BLOM C. E.
Published: May 2016

is recorded in a low‐pressure flame by reacting barium vapor with N2O. 140 Rovibrational transitions of the five most abundant isotopic species are detected with a tunable diode laser flame spectrometer.
ChemInform Abstract: Electroorganic Chemistry. Part 120. New Patterns of Anodic Oxidation of Amides. Synthesis of α‐Amino Aldehyde Acetals and Pyrrolidines from Amines.
Authors: SHONO T. , MATSUMURA Y. , KATOH S. , TAKEUCHI K. , SASAKI K. , KAMADA T. , SHIMIZU R.
Published: May 2016

Anodic oxidation of various N‐alkyltosylamides such as (I) gives two types of products (III) or (IV), each of which can selectively be formed by modifying the reaction conditions.
ChemInform Abstract: (4 + 2)Cycloaddition of 3‐Cyanocyclopropene with Anthracenes.
Authors: SAITO K. , ISOBE S. , ITO K. , KAGABU S. , TAKAHASHI K.
Published: May 2016

The anthracenes (IV) react with 3‐cyanocyclopropene (II), generated in situ from the bridged cyclodiene (I), to give the (4 + 2)cycloaddition products (V).
ChemInform Abstract: Ultrasound‐Promoted Acyloin Condensation and Cyclization of Carboxylic Esters.
Authors: FADEL A. , CANET J.‐L. , SALAUEN J. +
Published: May 2016

Treatment of the diesters (I) according to Ruhlmann with chlorotrimethylsilane (II) and sodium under ultrasonic irradiation yields the cycloalkenes (III).
ChemInform Abstract: Stepwise Mechanism of Formal 1,5‐Sigmatropic Rearrangement of Dimethyl 3,3‐Dialkyl‐3H‐pyrazole‐4,5‐dicarboxylates.
Authors: MAJCHRZAK M. W. , JEFFERSON E. , WARKENTIN J.
Published: May 2016

Thermal rearrangement of the methyl‐ and ethyl‐substituted pyrazoles (I) leads to the products (II) and (III), the formation of which can be understood in terms of competitive 1,5‐sigmatropic alkyl rearrangement to N to form (II) or to C to form an intermediate that rearranges to (III) by sequential ester group migration.
ChemInform Abstract: New Routes to Nitrogen Heterocycles Through Intramolecular Amidocarbonylation of Alkenamides Catalyzed by Rhodium Complexes.
Authors: OJIMA I. , KORDA A.
Published: May 2016

3‐Butenoic acid amide (I) is subjected to intramolecular amidocarbonylation with CO (II)/H2 to give the dihydropyridone (III), the pyrrolidone (IV) due to cyclization, and the oxopyrrolinylpiperidone (V) via dimerization.
ChemInform Abstract: Mono‐N‐alkylation of α‐Aminoacetonitriles. A Novel Route to Unsymmetrical Secondary Amines.
Authors: KATRITZKY A. R. , LATIF M. , UROGDI L.
Published: May 2016

The condensation products (III) can be reduced either by NaBH4 treatment to give the unsym. dialkylaminoacetonitriles (VI) or by reaction with Grignard reagents such as (VIII) to give products (IX) of the same type as (VI).
ChemInform Abstract: The Diethylisopropylsilyl Group: A New Protecting Group for Alcohols.
Authors: TOSHIMA K. , MUKAIYAMA S. , KINOSHITA M. , TATSUTA K.
Published: May 2016

The silyl moiety mentioned in the title is employed in the protection of primary, secondary, and tertiary alcohols, e.g. (II), by etherification with the chloride (Ia) or triflate (Ib) in the presence of bases.
ChemInform Abstract: New Aspects in the Synthesis of Mono‐ and Dialkylfurans.
Authors: BOCK I. , BORNOWSKI H. , RANFT A. , THEIS H.
Published: May 2016

Alkylations of the bromofuran (I) afford derivatives such as (IIIa)‐(IIIc); (IIIb) is further converted to ursinanolide (V).
ChemInform Abstract: A Convenient One‐Pot Entry into Novel 2‐Substituted‐6,7‐dihydro‐4H‐pyrimido(2,1‐a)isoquinolin‐4‐ones.
Authors: LAL B. , D'SA A. S. , KULKARNI B. K. , DE SOUZA N. J.
Published: May 2016

The reaction of the ureas (I) with malonic acid (II) does not lead to the expected pyrimido(6,1‐a)isoquinoline derivatives.
ChemInform Abstract: 2,2′‐(5,8‐Dihydroquinoxaline‐5,8‐diylidene)bis(1,3‐benzodithiole)s. A New Type of Electron Donors.
Authors: YAMASHITA Y. , SUZUKI T. , MIYASHI T.
Published: May 2016

The quinoxalinediones (I) react with cyclopentadiene (II) to give the Diels‐Alder adducts (III) which are coupled with the phosphonate (IV) to form the fulvalene‐like compounds (V).
ChemInform Abstract: Structure of a Non‐Classically Bridged Methyleneborane in the Crystal.
Authors: WIECZOREK C. , ALLWOHN J. , SCHMIDT‐LUKASCH G. , HUNOLD R. , MASSA W. , BERNDT A.
Published: May 2016

The crystalline methyleneboranes (II) are obtained from (I) and Mg.
ChemInform Abstract: (PhLiNCH2CH2NLiPh)·3 HMPA, a Monomeric Dilithiumethylenediamide Complex with N2Li2 Double Bridging: Synthesis, Crystal Structure, and Model MO Calculations.
Authors: ARMSTRONG D. R. , BARR D. , BROOKER A. T. , CLEGG W. , GREGORY K. , HODGSON S. M. , SNAITH R. , WRIGHT D. S.
Published: May 2016

The monomeric structure of the title complex (IV) (space group P21/n, Z=4) is confirmed by X‐ray analysis.
ChemInform Abstract: The Lewis Acidity of Organylbismuth(III) Compounds. New Organylbismuth(III) Dithiocarbamate Chemistry. The Crystal and Molecular Structure of Bis(diethyldithiocarbamato)phenylbismuth(III) and Bis(diethyldithiocarbamato)(2‐(2′‐pyridyl)phenyl)bismuth(III).
Authors: ALI M. , MCWHINNIE W. R. , WEST A. A. , HAMOR T. A.
Published: May 2016

The Lewis acidity of (III) is investigated by study of the reactions with (IV), Na propionate and (VI).
ChemInform Abstract: Base‐Induced Alkyne Cleavage in W(II) Complexes ‐ A New Way to Low‐Valent Carbyne Complexes from W(CO)6.
Authors: FILIPPOU A. C. , VOELKL C. + , GRUENLEITNER W. + , KIPROF P.
Published: May 2016

A new entry to low‐valent, CO‐free W phenylcarbyne complexes such as (X) is developed from fac‐tris(acetonitrile)tricarbonyl‐W (I) via W(II) alkyne complexes according to the scheme.
ChemInform Abstract: A Novel Monooxoruthenium(V) Complex Containing a Polydentate Pyridyl Amine Ligand. Syntheses, Reactivities and X‐Ray Crystal Structure of (RuIII(N4O)(H2O))(ClO4)2.
Authors: CHE C.‐M. , YAM V. W.‐W. , MAK T. C. W.
Published: May 2016

For (V) and its precursor compound (IV) (P2/c, Z=4) the magnetic susceptibilities are determined.
ChemInform Abstract: Isostructural η2‐Dihydrogen Complexes (Os(NH3)5(H2))n+ (n = 2, 3) and the Hydrogenation of Acetone.
Authors: HARMAN W. D. , TAUBE H.
Published: May 2016

The reduction of the Os(III) complex (I) in methanol or aqueous solution affords the dihydrogen complex (II).
ChemInform Abstract: UW4C4, a Distorted Structure Derived from UCr4C4 and the Ternary U‐W‐C System.
Authors: BEHRENS R. K. , JEITSCHKO W.
Published: May 2016

UW4C4, prepared by reaction of the elements at 900 °C, crystallizes in the space group P4/m with Z=2.
ChemInform Abstract: Oxygen‐Sensing Properties of Spinel‐Type Oxides for Stoichiometric Air/Fuel Combustion Control.
Authors: SHIMIZU Y. , KUSANO S. , KUWAYAMA H. , TANAKA K. , EGASHIRA M.
Published: May 2016

The temp. dependence of the electrical resistance of the spinel‐type oxides MCr2O4 and MFe2O4 (M: Mg, Zn, Ni) is measured in air/MeOH combustion gases in order to investigate the potential of these oxides as air/fuel stoichiometric oxygen sensors.
ChemInform Abstract: Synthesis of ZSM‐20. Comparison of Properties with Zeolite Y.
Authors: DWYER J. , MILLWARD D. , O'MALLEY P. J. , ARAYA A. , CORMA A. , FORNES V. , MARTINEZ A.
Published: May 2016

Highly crystalline samples of ZSM‐20 are obtained by crystallization of a gel prepared by addition of tetraethylorthosilicate to a solution containing sodium aluminate and Et4NOH.
ChemInform Abstract: Acyclic Stereoselection. Part 46. Stereochemistry of the Michael Addition of N,N‐Disubstituted Amide and Thioamide Enolates to α,β‐Unsaturated Ketones.
Authors: OARE D. A. , HENDERSON M. A. , SANNER M. A. , HEATHCOCK C. H.
Published: May 2016

Various substituted amides, e.g. (I) and (V), or thioamides such as (VIII) are converted to lithium enolates and then coupled with enones such as (II) or (IX) to give 1,2‐ and/or 1,4‐adducts depending on the reaction conditions.
ChemInform Abstract: Double H‐Bridged and Single H‐Bridged Diboryl Radicals.
Authors: TRACHTMAN M. , BOCK C. W. , NIKI H. , MAINS G. J.
Published: May 2016

Using ab initio MO calculations with the 6‐31G* basis set the structures of the radicals B2H· 5, B2H5CO· and B2H5N· 2 are investigated.
ChemInform Abstract: New Method for the Selective Reduction of Amides.
Authors: TSAY S.‐C. , ROBL J. A. , HWU J. R.
Published: May 2016

A new procedure for the reduction of tert.‐aliphatic, olefinic and aromatic amides such as (I) to aldehydes (III) in the presence of L‐Selectride is described.
ChemInform Abstract: Stereoselective Partial Hydrogenation of the Triple Bond in Methyl 2‐Ethyl‐6,6‐dimethylhept‐2‐en‐4‐ynoate: A Comparison of Lindlar and Montmorillonite Catalysts.
Authors: NIKLES M. , BUR D. , SEQUIN U.
Published: May 2016

Hydrogenations of the triple bond in (I) are carried out using Lindlar and montmorillonite catalysts in various solvents.
ChemInform Abstract: Photochlorination of Simple Alkanes in Cryogenic Solids.
Authors: WIGHT C. A. , KLIGMANN P. M. , BOTCHER T. R. , SEDLACEK A. J.
Published: May 2016

Photochemical reactions are induced by laser photolysis of amorphous binary solids composed of Cl2 mixed with propane, butane, isobutane, pentane, cyclopentane, hexane, or cyclohexane at 10‐150 K. In each case, the laser dissociates Cl2 into Cl· which reacts with the alkane to form HCl and the corresponding chloroalkane.
ChemInform Abstract: Aromatic Substitution. Part 57. Nitration of Phenylboron Dichloride with Nitronium Tetrafluoroborate. Attempted Nitration of Iodobenzene Dichloride and Phenylphosphorus Dichloride.
Authors: OLAH G. A. , PITEAU M. , LAALI K. , RAO C. B. , FAROOQ O.
Published: May 2016

Phenylboronic dichloride (I) is treated with nitryl tetrafluoroborate (II) or N‐nitro‐2,4,6‐collidinium tetrafluoroborate (VI) under various conditions to give the nitrophenylboronic dichlorides (III) ‐ (V).
ChemInform Abstract: “Mixed Staffanes” as Intermediate‐Length Staffs for Molecular‐Size Tinkertoys. Parent Hydrocarbons and Terminal Diiodides Combining Bicyclo‐(1.1.1)pentane with Cubane or Bicyclo(2.2.2)octane Units.
Authors: HASSENRUECK K. + , MURTHY G. S. , LYNCH V. M. , MICHL J.
Published: May 2016

Irradiation of the tertiary diiodides (II) in the presence of an excess of the propellane (I) results in the predominant formation of the mono‐(III) or bisadducts (IV) depending on the irradiation time.
ChemInform Abstract: Benzylic Oxidation by the GifIV System.
Authors: BARTON D. H. R. , HALLEY F. , OZBALIK N. , MEHL W.
Published: May 2016

Whereas the oxidation of benzene (I) under Gif conditions forms only traces of phenol (II) ‐ trapped as the tribromo derivative (III) ‐ the phenylmethanes (IV) produce the phenyl ketones (V).
ChemInform Abstract: Attempts Toward the Synthesis of 2,6‐Bis(2‐furyl)‐4‐phenylpyrylium Tetrafluoroborate (Va).
Authors: REICHARDT C. , MILART P.
Published: May 2016

An improved synthesis of the diketone (III) is reported.
ChemInform Abstract: Stereoselective Synthesis of Pipecolic Acid Derivatives Using Aza Diels‐Alder Reactions.
Authors: BAILEY P. D. , WILSON R. D. , BROWN G. R.
Published: May 2016

The iminium salt (III), prepared from ethyl glyoxalate (II) and benzylamine hydrochloride (I), reacts with the cyclic dienes (IV) to form the cycloadducts (V).
ChemInform Abstract: A trans‐Folded Alkene System: Synthesis, Structure and Isomerization of 2,2′‐Diaryl‐1,1′‐bi(1,2‐dihydrophthalazinylidenes).
Authors: BUTLER R. N. , GILLAN A. M. , LYSAGHT F. A. , MCARDLE P. , CUNNINGHAM D.
Published: May 2016

The title compounds (II) formed by dimerization of the phthalazinols (I), are present in the trans‐form in the crystalline state.
ChemInform Abstract: Structure and Reactions of 6‐Oxo‐1,2,4‐triazines.
Authors: EID M. M. , ABDEL‐HADY S. A. , ALI H. A. W.
Published: May 2016

Cyclization of the α‐(benzoylamino)cinnamic hydrazides (I) under alkaline conditions leads to the formation of the triazinones (II) which are converted to the tetrazolotriazines (VII) and (IX) via the triazinethiones (III) and the hydrazinotriazines (V) as shown in the reaction scheme.
ChemInform Abstract: Synthesis of Organotin Complexes with Ligands of Biological Significance.
Authors: LEE F. L. , GABE E. G. , KHOO L. E. , ENG G. , SMITH F. E.
Published: May 2016

Regardless of the proportions of the ligand and triphenyltin chloride used, the new yellow, thermally stable 1:1 complexes (I) are formed (no yields given).
ChemInform Abstract: Derivatives of Tetrathiometallates. Synthesis of (MS4M′(bpy)2) (M: Mo, W; M′: Co, Ni, Mn, Ru) Complexes. Structural Characterization of (Ni(bpy)3)((WS4)2Pd).
Authors: POTVIN C. , MANOLI J.‐M. , SECHERESSE F.
Published: May 2016

Reaction of dichloro‐bis(2,2'‐bipyridyl)metal complexes e.g. (I), (IV), and (VIII) with tetrathiotungstates or ‐molybdates affords complexes of the type (III) ((IIIa): space group P21/n, Z=4).
ChemInform Abstract: Preparation and Structural Characterization of Rhodium and Palladium Complexes of Mixed Phosphine/Amine Ligands with Methylene Spacers Between Donor Atoms.
Authors: BALCH A. L. , OLMSTEAD M. M. , ROWLEY S. P.
Published: May 2016

The diphenylaminomethyl‐substituted monophosphanes (I) and (VI) and the diphenylphosphinomethylamines (VII) and (VIII) (yield 72/93%) are prepared by condensation of paraformaldehyde (IV) with corresponding phenylamines and phenylphosphanes.
ChemInform Abstract: Simple Synthesis of cis‐4‐Hydroxy‐L‐proline and Derivatives Suitable for Use as Intermediates in Peptide Synthesis.
Authors: PAPAIOANNOU D. , STAVROPOULOS G. , KARAGIANNIS K. , FRANCIS G. W. , BREKKE T. , AKSNES D. W.
Published: May 2016

Peptides with improved biological activities are obtained when L‐proline is substituted by cis‐4‐hydroxy‐L‐proline.
ChemInform Abstract: Photocyclization of Enamides. Part 29. Dehydrogenation with Benzeneseleninic Anhydride in the Total Synthesis of Ergot Alkaloids.
Authors: NINOMIYA I. , HASHIMOTO C. , KIGUCHI T. , NAITO T. , BARTON D. H. R. , LUSINCHI X. , MILLIET P.
Published: May 2016

The efficiency of the dehydrogenation of indolines such as (I) by treatment with the title reagent is markedly improved on addition of indole as a scavenger for trapping an intermediate Se(II) species (yield of (IIa) in the absence of indole: 57%).
ChemInform Abstract: A New Way for Preparing Superconducting Materials: The Electrochemical Oxidation of La2CuO4.
Authors: WATTIAUX A. , PARK J.‐C. , GRENIER J.‐C. , POUCHARD M.
Published: May 2016

Polarization of La2CuO4 in 1 N KOH at 900 mV (66 h) yields a metallic material which exhibits a superconducting transition around 47 K. The room temp. resistivity of this material is strongly decreased which is explained by the mixed valency of Cu resulting from the electrochemical treatment.
ChemInform Abstract: Preparation of High‐Surface‐Area Transition‐Metal Nitrides: Mo2N and MoN.
Authors: JAGGERS C. H. , MICHAELS J. N. , STACY A. M.
Published: May 2016

The reactions of ammonia with MoO3 (I), (NH4)6Mo7O24·4 H2O (II), (NH4)2MoO4 (III), and HxMoO3 (IV) to produce MoN and Mo2N are studied by TGA, in situ XRD, and surface area measurements as a function of reaction temperature.
ChemInform Abstract: Rearrangements of Azidoquinones. Generation of a Benzyne Intermediate.
Authors: CHOW K. , MOORE H. W.
Published: May 2016

Thermolysis of the azido(silylethynyl)‐o‐benzoquinone (VI), prepared as shown in the reaction scheme, generates the diradical (VII).
ChemInform Abstract: The Reactions of α‐Oxodithioester S‐Methylides.
Authors: MORAN J. R. , TAPIA I. , ALCAZAR V.
Published: May 2016

α‐Oxodithioesters of type (I) or (VI) react with CH2N2 (II) to give thiadiazolines which form thiocarbonyl ylides after N2 extrusion.
ChemInform Abstract: Cyclocondensation of 2‐Methylbenzimidazole with Acetylacetone.
Authors: POPOV I. I.
Published: May 2016

ZnCl2‐catalyzed reaction of 2‐methylbenzimidazole (I) with acetylacetone (II) gives the pyridobenzimidazole (III).
ChemInform Abstract: Studies on Fused Pyrimidine Derivatives. Part 6. Characterization of a Perhydro‐5,6‐di(methylene)‐2,4‐dioxopyrimidine Intermediate and Its Cycloaddition Reactions Leading to Quinazoline Derivatives.
Authors: NOGUCHI M. , DOI K. , KIRIKI Y. , KAJIGAESHI S.
Published: May 2016

The dioxopyrimidinecarbaldehyde hydrazone (I) reacts with N‐methylmaleimide (II) to form the cycloadducts (III).
ChemInform Abstract: Synthetic Methods and Reactions. Part 145. Improved Direct Preparation of O‐Trimethylsilyl Monothioacetals from Thiols and Carbonyl Compounds.
Authors: SASSAMAN M. B. , PRAKASH G. K. S. , OLAH G. A.
Published: May 2016

The reaction of the thiols (I) and 1‐(trimethylsilyl)imidazole (II) with the carbonyl compounds (III) using trimethylsilyl triflate as the catalyst produces the acetals (IV).
ChemInform Abstract: A New Route to Alkoxysilanes and Alkoxysiloxanes of Use for the Preparation of Ceramics by the Sol‐Gel Technique.
Authors: GOODWIN G. B. , KENNEY M. E.
Published: May 2016

The alkoxysilane (III) and the alkoxysiloxanes (V), (VIII), (X), (XII) and (XIII) are prepared as shown.
ChemInform Abstract: The Acceptor Properties of Some Pentafluorophenylphosphorus(V) Species.
Authors: ALI R. , DILLON K. B.
Published: May 2016

A systematic study of the acceptor properties of the title species (I) and (II) toward Lewis bases such as chloride ions, pyridine, bipyridine and phenanthroline is carried out.
ChemInform Abstract: Additions of Alkylidene Groups Between Co and S in the Reactions of Dithiolatocobalt Complexes with Diazo Compounds.
Authors: KAJITANI M. , SAKURADA M. , DOHKI K. , SUETSUGU T. , AKIYAMA T. , SUGIMORI A.
Published: May 2016

Reaction of the dithiolato cobalt(III) complexes (I) with the diazo compounds (II) results in the formation of the bicyclic cobalt complexes (III).
ChemInform Abstract: Exchange Interaction in Multinuclear Transition‐Metal Complexes. Part 14. Exchange Interactions in a Novel Copper(II) Linear‐Chain Compound with Ladderlike Structure: Cu2(1,4‐diazacycloheptane)2Cl4.
Authors: CHIARI B. , PIOVESANA O. , TARANTELLI T. , ZANAZZI P. F.
Published: May 2016

X‐Ray structure analysis of the dimeric title compound (III) (space group P21/c, Z=4) confirms that the dimer is connected with neighboring dimers by Cu‐Cl····H‐N‐Cu hydrogen bonding interactions into infinite ladderlike chains.
ChemInform Abstract: The Preparation and Characterization of Pt(Se3PPh)(PR3)2; the X‐Ray Crystal Structure of Pt(Se3PPh)(dppe)·CH2Cl2.
Authors: PARKIN I. P. , PILKINGTON M. J. , SLAWIN A. M. Z. , WILLIAMS D. J. , WOOLLINS J. D.
Published: May 2016

The title compounds (III), the first examples of molecules containing a PtSe2P ring, are prepared by the reaction of the selenium analogue of Lawessons reagent with cis‐dichloroplatinum compounds.
ChemInform Abstract: Sterically Hindered Oxadiazoles as Potential Fluorescent Dopants for Polymeric Scintillators.
Authors: FEYGELMAN V. M. , WALKER J. K. , KATRITZKY A. R. , DEGA‐SZAFRAN Z.
Published: May 2016

The oxadiazoles (I) are obtained by cyclization of the appropriate benzoyl hydrazide in the presence of POCl3.
ChemInform Abstract: Collision‐Induced Elimination of Alkenes from Deprotonated Unsaturated Ethers in the Gas Phase. Reactions Involving Specific β‐Proton Transfer.
Authors: WAUGH R. J. , HAYES R. N. , EICHINGER P. C. H. , DOWNARD K. M. , BOWIE J. H.
Published: May 2016

Unsaturated ethers of type (I) deprotonate in the gas phase to form carbanions (II) which, when n = 1 and 2 and R: ‐Et or higher alkyl, undergo predominantly β‐proton transfer to form the E1cB intermediates CH2=CH‐CH2‐(CH2)n‐O‐CH2‐CH2‐, which eliminate ethene to yield the alkoxide CH2=CH‐CH2‐(CH2)n‐O‐.
ChemInform Abstract: Exclusive Ortho Cyanation and Alkylthiocarbonylation of Anilines and Phenols Using Boron Trichloride.
Authors: ADACHI M. , SUGASAWA T.
Published: May 2016

The anilines (I) are coupled with trichloroacetonitrile (II) in the presence of boron trichloride and, eventually, other Lewis acids to give the o‐aminobenzonitriles (III) after alkaline work‐up.
ChemInform Abstract: Preparation of β‐Keto Ester Acetals by Reaction of Ortho Esters with Ketene Silyl Acetals in the Presence of Titanium Tetrachloride.
Authors: COLLINS D. J. , CHOO G. L. P. , OBRIST H.
Published: May 2016

β‐Keto ester acetals such as (III) and (V) are readily available in the presence of TiCl4.
ChemInform Abstract: Lactones. Part 22. Synthesis and Reduction of α‐Aminomethylene‐δ,δ‐diphenyl‐δ‐valerolactones.
Authors: LEHMANN J. , NEUGEBAUER M. , MARQUARDT N.
Published: May 2016

Consecutive reaction of the δ‐lactone (I) with ethyl formate (IV)/sodium hydride and piperidine (V) leads to the formation of the 3‐piperidinomethylenetetrahydro‐2(2H)‐pyranone (IIIb).
ChemInform Abstract: Synthesis of Some Substituted Pyrimidinyloximes of Aryl Methyl Ketones and Their Reactions with Nucleophilic Agents.
Authors: DANAGULYAN G. G. , BALASANYAN N. G. , TERENT'EV P. B. , ZALINYAN M. G.
Published: May 2016

The acetophenone oximes (I) are coupled with the 2‐chloropyrimidine (II) to give the 2‐pyrimidinyloximes (III).
ChemInform Abstract: A New Synthesis of 1,2,4‐Triazino(6,1‐b)quinazoline‐4,10‐diones.
Authors: REDDY P. S. N. , REDDY V. G.
Published: May 2016

The aminooxoquinazolinecarboxylate (I) is treated with ammonia (II), the alkylamines (VI), or hydrazine hydrate (IV) to yield the amides (III) or (VII) and the hydrazide (V) respectively.
ChemInform Abstract: Synthesis and Antiesterase Activity of O,O‐Dialkyl S‐Ethoxycarbonylchloromethyl Thiophosphates.
Authors: KHASKIN B. A. , MAKHAEVA G. F. , TORGASHEVA N. A. , ISHMURATOV A. S. , YANKOVSKAYA V. L. , FETISOV V. I. , MALYGIN V. V. , MARTYNOV I. V.
Published: May 2016

The title compounds (III), prepared by reaction of the phosphorylsulfenyl chlorides (I) with ethyl diazoacetate (II), inhibit carboxyl esterase, acetylcholine esterase, and butyrylcholine esterase.
ChemInform Abstract: Preparation, Properties, and Reactions with Sulfur Dioxide of Triphenylphosphine Oxide Complexes of Manganese(II) Thiocyanate. Crystal Structures of ((Mn(OPPh3)2(NCS)(μ‐NCS))2), (Mn(OPPh3)4(NCS)2), and (PPh3O)(PPh3OH)(HSO4), a Derivative of Sulfuric Acid Formed Under Ambient Air Oxidation of Sulfur Dioxide.
Authors: AL‐FARHAN K. , BEAGLEY B. , EL‐SAYRAFI O. , GOTT G. A. , MCAULIFFE C. A. , MAC RORY P. P. , PRITCHARD R. G.
Published: May 2016

Anhydrous Mn(II) thiocyanate reacts with triphenylphosphine oxide in toluene in appropriate molar ratio to give the complex series Mn(O=PPh3)n(NCS)2 (n = 1‐4).
ChemInform Abstract: Pyrrolophenanthridines. Part 3. A Novel Synthesis of 1H‐Pyrrolo(2,3‐c)phenanthridine.
Authors: BABERKINA E. P. , AKHVLEDIANI R. N. , BUYANOV V. N. , SAMOILOVA M. E. , LEVINA I. I. , SUVOROV N. N.
Published: May 2016

The title compound (VI) is synthesized.
ChemInform Abstract: Enantiomerically Pure Indoloquinolizines from Tryptophane.
Authors: PENG S. , WINTERFELDT E.
Published: May 2016

The title compounds (VI) are synthesized via Pictet‐Spengler reaction of the tryptophane derivative (I) with the aldehyde (II) followed by addition of the ketone (III).
ChemInform Abstract: Two New Cobalt(II) Compounds Exhibiting Weak Ferromagnetism: Magnetic Susceptibility Study of CoHPO3·H2O (I) and CoCl(H2PO2)·H2O (II) and Crystal Structure of CoHPO3·H2O.
Authors: SAPINA F. , GOMEZ‐ROMERO P. , MARCOS M. D. , AMOROS P. , IBANEZ R. , BELTRAN D. , NAVARRO R. , RILLO C. , LERA F.
Published: May 2016

The title compound (I) crystallizes in the orthorhombic space group Pca21 with Z=4.
ChemInform Abstract: Asymmetric Synthesis of Both Enantiomers of 2‐Trifluoromethyl‐4‐aminobutyric Acid.
Authors: YAMAZAKI T. , OHNOGI T. , KITAZUME T.
Published: May 2016

Both enantiomers of the title compound (V) are prepared by enzymatic hydrolysis of the nitrobutyrate (III).
ChemInform Abstract: A Practical Method for Resolution of the Optical Isomers of 2,2′‐Dihydroxy‐1,1′‐binaphthalene.
Authors: TAMAI Y. , PARK H.‐C. , IIZUKA K. , OKAMURA A. , MIYANO S.
Published: May 2016

Using the (R)‐(‐)‐2‐aminobutanol (II) as the chiral auxiliary , the racemic mixture of the phosphate (I) is converted to a diastereomeric mixture of the salts (III) and (IV).
ChemInform Abstract: Heterocyclisations Induced by Thallium(III) Acetate. Effect of Varying the Internal Nucleophile.
Authors: MICHAEL J. P. , NKWELO M. M.
Published: May 2016

Treatment of the hex‐4‐en‐1‐ol (I) with Tl(OAc)3 in acidic aqueous acetone affords the trans‐2,5‐disubstituted tetrahydrofuran (II).
ChemInform Abstract: Pentaalkylguanidines as Etherification and Esterification Catalysts.
Authors: BARCELO G. , GRENOUILLAT D. , SENET J.‐P. , SENNYEY G.
Published: May 2016

The catalytic activity of a series of pentaalkylsubstituted guanidines is investigated in model reactions and compared to the activity of DMAP, the commonly used catalyst in such reactions.
ChemInform Abstract: The Synthesis of Benzofuroquinolines. Part 6. A New Synthesis of Benzofuro(2,3‐c)quinoline Derivatives.
Authors: YAMAGUCHI S. , OH‐HIRA Y. , YAMADA M. , MICHITANI H. , KAWASE Y.
Published: May 2016

The title compounds (III) and (V) can be prepared as shown.
ChemInform Abstract: Synthesis of 11‐Phenyl‐2,3,4,5‐tetrahydro‐1H‐(1,4)diazepino(1,2‐a)indoles and 1‐(3‐Aminopropyl)‐2‐hydroxymethyl‐3‐phenylindoles as 5‐Hydroxytryptamine Antagonists.
Authors: RAJUR S. B. , MERWADE A. Y. , BASANAGOUDAR L. D.
Published: May 2016

Treatment of the phenylindoles (I) with acrylonitrile (II) produces the 2‐cyanoethyl derivatives (III) as the key intermediates for the synthesis of the diazepino(1,2‐a)indoles (VI) mentioned in the title.
ChemInform Abstract: Versatile Precursors for the Synthesis of Enynes and Enediynes.
Authors: MYERS A. G. , ALAUDDIN M. M. , FUHRY M. M. , DRAGOVICH P. S. , FINNEY N. S. , HARRINGTON P. M.
Published: May 2016

The dibromoacrylate (II) is coupled with trimethylsilylacetylene (III) to give the enyne (IV) which reacts with the siloxyalkyne (V), forming the enediyne (VI).
ChemInform Abstract: The Preparation and Characterization of Substituted Pentaphenylcyclopentadienyl Ligands, Their Precursors, and Complexes of Iron.
Authors: FIELD L. D. , HO K. M. , LINDALL C. M. , MASTERS A. F. , WEBB A. G.
Published: May 2016

A variety of known and novel tetracyclones such as (I), carbinols (II) and bromides (III) are prepared by the standard procedure of Ziegler and Schnell.
ChemInform Abstract: 9,10‐Phenanthrenocyaninatoiron(II) (PhcFe) and Axially Coordinated Isocyanide Complexes.
Authors: HANACK M. , RENZ G.
Published: May 2016

The reaction of the title complex (V) with 1,4‐diisocyanobenzene in CHCl3 yields a bridged complex (60‐80% yield).
ChemInform Abstract: Synthesis, Characterization, and X‐Ray Crystal Structure of (Ru(NO2)(PMe3)2(trpy))(ClO4).
Authors: LEISING R. A. , KUBOW S. A. , CHURCHILL M. R. , BUTTREY L. A. , ZILLER J. W. , TAKEUCHI K. J.
Published: May 2016

The title complex (IX), prepared in a five‐step synthesis with a total overall yield of 27%, crystallizes in P21/c with Z=4.
ChemInform Abstract: Synthetic Design of a Multielectron Series of Homologous Dirhodium Fluorophosphines Possessing an Emissive dσ* Excited State.
Authors: DULEBOHN J. I. , WARD D. L. , NOCERA D. G.
Published: May 2016

The dimer (I) reacts with the amine (II) to yield the Rh(0)/Rh(II) complex (III) (space group P212121, Z=4) and under reducing and oxidizing conditions to yield the Rh(0)/Rh(0) complex (IV) (P1, Z=2) and Rh(II)/Rh(II) complex (V) (C2/c, Z=4), respectively.
ChemInform Abstract: Chloropalladation of 1‐Aryl‐ω‐methylenenebicyclo(n.1.0)alkanes.
Authors: DONALDSON W. A. , NORTH J. T. , GRUETZMACHER J. A. , FINLEY M. , STEPUSZEK D. J.
Published: May 2016

The title reaction shown for (I), (VIII) and (XI), and carried out for 6 other examples of type (Ib), proceeds via cleavage of the C(2)‐C(3) bond of cyclopropane, a mechanism is discussed.
ChemInform Abstract: The Chemistry of Pyrrolic Compounds. Part 62. The Oxidative Cyclization of Bilenes‐b: Identification of the Expelled Carbon Fragment.
Authors: ATKINSON E. J. , BROPHY J. J. , CLEZY P. S.
Published: May 2016

Oxidative cyclization of the 1,19‐dibenzylbilene‐b salt (III) generated in situ from (I) and (II) yields the meso‐phenylporphyrin (V).
ChemInform Abstract: A Convenient Synthesis of Isothiazolo(5,4‐b)indole (Brassilexin) via a Polyphosphoric Acid Initiated Ring Closure.
Authors: DEVYS M. , BARBIER M.
Published: May 2016

Brassilexin (III), an antifungal compound, whose cytotoxicity on cultures of human cancer cells is currently under detailed study, is prepared starting with the 3‐indolecarboxaldehyde oxime (I).
ChemInform Abstract: Tautomerization Energetics of Benzoanellated Toluenes.
Authors: BARTMESS J. E. , GRIFFITH S. S.
Published: May 2016

The energy of tautomerization of some isotoluene structures (I)‐(IV) is measured by gas‐phase ion/molecule reactions and by solution calorimetry.
ChemInform Abstract: Influence of Substrate Structure on Copper(I)‐Assisted Cyanide Substitution in Aryl Halides.
Authors: CONNOR J. A. , LEEMING S. W. , PRICE R.
Published: May 2016

Various aryl halides are designed to explore the structural characteristics which are sufficient to enable copper(I)‐assisted substitution of the halide by cyanide.
ChemInform Abstract: Palladium‐ and Platinum‐Catalyzed Reaction of Siloxycyclopropanes with Acid Chlorides. A Homoenolate Route to 1,4‐Carbonyl Compounds.
Authors: AOKI S. , FUJIMURA T. , NAKAMURA E. , KUWAJIMA I.
Published: May 2016

The siloxycyclopropanes (I) undergo Pd‐catalyzed reaction with the acid chlorides (II) to give the γ‐keto carboxylic acid esters (III).
ChemInform Abstract: Synthesis of 1,3‐Dioxin‐4‐ones and Their Use in Synthesis. Part 22. A Novel Synthetic Method for Tetronic Acids from 1,3‐Dioxin‐4‐ones via Intra‐ or Intermolecular Ketene Trapping.
Authors: SATO M. , SAKAKI J. , TAKAYAMA K. , KOBAYASHI S. , SUZUKI M. , KANEKO C.
Published: May 2016

The dioxinones (IV), prepared by bromination of the dioxinones (I), subsequent substitution with the acetate (III), and hydrolysis, are thermolyzed to produce the tetronic acids (VI) via the ketene intermediates (V).