bluuebunny/crossref_metadata_2025_split huggingface dataset:
ChemInform Abstract: A Simple Synthesis of 4‐Amino‐2,2,6,6‐tetramethyl‐1‐piperidinyloxy Radical.
Authors: BUSHMAKINA N. G. , MISHARIN A. Y. 
Published: May 2016

AbstractThe title compound (IV) is prepared from the corresponding 4‐hydroxy derivative (I) via the mesylate (II) and the azide (III).
ChemInform Abstract: Synthesis of 2‐Aminomethyl‐1,10‐phenanthroline. A New Chelating Agent and Versatile Synthon for Other Chelating Compounds.
Authors: ENGBERSEN J. F. J. , KOUDIJS A. , JOOSTEN M. H. A. , VAN DER PLAS H. C. 
Published: May 2016

Abstract1,10‐Phenanthroline (I) is oxidized to yield the N‐oxide (II) which is converted to the nitrile (III).
ChemInform Abstract: 2,2‐Dimethyl‐5‐(5‐R‐furfurylidene‐2)‐1,3‐dioxane‐4,6‐diones. Part 1. Synthesis, Properties, and Stereochemistry.
Authors: KRAPIVIN G. D. , KUL'NEVICH V. G. , VAL'TER N. I. 
Published: May 2016

AbstractMeldrum's acid (I) reacts with the furfurols (II) or the dialdehyde (IV) to give the furfurylidenedioxanediones (III) and (V) respectively.
ChemInform Abstract: Heterocycles from Carbohydrate Precursors. Part 29. Reaction of Dehydro‐L‐ascorbic Acid Analogues with o‐Phenylenediamine.
Authors: EL ASHRY E. S. H. , ABDEL RAHMAN M. A. , EL KILANY Y. , RASHED N. 
Published: May 2016

AbstractReaction of the compound (I) with o‐phenylenediamine (II) yields the condensation product (III).
ChemInform Abstract: 1,3‐Thiazines. Part 34. Oxidations of Thiourethanes. Part 8. Oxidative Desulfurization and Nitrosating N‐Dealkylation by Nitrous or Nitric Acid.
Authors: HANEFELD W. , GUENES Z. E. + 
Published: May 2016

AbstractThe N‐dimethylamino thioxothiazinone (Ib) is demethylated, nitrosated, and desulfurized by treatment with nitrous or nitric acid to produce the thiazinedione (II).
ChemInform Abstract: 10‐Alkenylphenothiazines. Part 2. Synthesis and Mechanism of Acid Hydrolysis of cis‐ and trans‐10‐(2‐Phenylvinyl)phenothiazines.
Authors: ANFINOGENOV V. A. , NAPILKOVA O. A. , SIROTKINA E. E. , FILIMONOV V. D. , KHLEBNIKOV A. I. 
Published: May 2016

AbstractThe addition reaction of phenylacetylene (II) to phenothiazine (I) in a super basic medium yields mixtures of the cis‐ and trans‐phenylvinylphenothiazines (III) and (IV).
ChemInform Abstract: Heterocyclic Analogs of Pleiadiene. Part 59. Reaction of 1‐Acetonyl‐ and 1‐Phenacylperimidinium Salts with Hydrazine and Ammonium Acetate.
Authors: DAL'NIKOVSKAYA V. V. , KUZ'MENKO T. A. , POZHARSKII A. F. 
Published: May 2016

AbstractOnly the representatives (Ia) ‐ (Id) of the perimidinium salts (I) react with hydrazine to yield the tetrahydrotriazinoperimidines (IIa) ‐ (IId).
ChemInform Abstract: Trichomonacidal Drugs. Part 4. Chlorodiallylamino‐1,3,5‐triazines.
Authors: KREUTZBERGER A. , SCHLAEFER I. + 
Published: May 2016

AbstractThe chlorodiallylamino‐1,3,5‐triazines (III) are prepared by reaction of the dichlorotriazines (I) with the primary amines (II).
ChemInform Abstract: Macroheterocycles. Part 30. Synthesis of Chiral Cryptands and Polynuclear Crown Ethers.
Authors: LUKYANENKO N. G. , REDER A. S. , LYAMTSEVA L. N. 
Published: May 2016

AbstractThe chiral trinuclear crown ethers (VII) are prepared from the chiral diols (III), obtained by reaction of the monoazacrown ethers (I) with the optically active dioxirane (II) or the diiodide (IV).
ChemInform Abstract: Macroheterocycles. Part 28. Coronands with Carbodiimide Groups and Their Chemical Transformations.
Authors: LUKYANENKO N. G. , KIRICHENKO T. I. , LIMICH V. V. 
Published: May 2016

AbstractThe macrocyclic carbodiimides (II), obtained from the macrocyclic thioureas (I) by reaction with triphenylphosphine and carbon tetrachloride, are converted to the corresponding ureas (III), the isoureas (IV), or the guanidines (V) and (VII) by treatment with water, alcohols, and amines respectively.
ChemInform Abstract: Reactions of Vinylsilanes with Ethoxycarbonylnitrene Under Phase‐Transfer Conditions: A Novel Route to Silicon‐Containing Aziridines.
Authors: LUKEVICS E. , DIRNENS V. V. , GOLDBERG YU. SH. , LIEPINSH E. E. 
Published: May 2016

AbstractThe vinylsilane derivatives (I) and (VI) react with ethoxycarbonylnitrene, generated from the sulfonyloxycarbamate (II), to yield the silylated N‐ethoxycarbonylaziridines (IV) and (VII) as the main products.
ChemInform Abstract: A Simple Synthesis of 3H‐λ5‐Phosphole Derivatives from Alkyldiphenylphosphine Imines and Dimethyl Acetylenedicarboxylate.
Authors: BARLUENGA J. , LOPEZ F. , PALACIOS F. 
Published: May 2016

AbstractThe diphenylphosphine imines (Ia) and the phosphorane (Ib) are coupled with dimethyl acetylenedicarboxylate (II) to produce the adducts (III).
ChemInform Abstract: Synthesis of 3‐Selena‐7‐azabicyclo(3.3.1)nonanes and Certain Derivatives.
Authors: THOMPSON M. D. , SMITH G. S. , BERLIN K. D. 
Published: May 2016

Abstract4‐Selenacyclohexanone (I) reacts with the amines (II) and paraformaldehyde (III) to produce the bicyclic ketones (IV).
ChemInform Abstract: New Stannylene‐Bridged Tetracarbonyliron Dimers.
Authors: SRIYUNYONGWAT V. , HANI R. , ALBRIGHT T. A. , GEANANGEL R. 
Published: May 2016

AbstractThe title complexes (I) have been synthesized by the direct reaction of the stannylenes with Fe2(CO)9 in benzene at 25 °C. IR, NMR, and Mößbauer spectra of the products indicate them to be new members of a class of dimeric stannylene‐tetracarbonyliron compounds containing Fe2Sn2 ring frameworks.
ChemInform Abstract: The Formation and Reactivity of Sulfito Complexes of Tetraethylenepentaminecobalt(III): X‐Ray Structure of αα‐(Co(tetren)SO3)ClO4.
Authors: SCHNEIDER K. J. , VAN ELDIK R. , ROODT A. , LEIPOLDT J. G. 
Published: May 2016

AbstractTreatment of a mixture consisting of the αβR‐ and the αβS‐isomer of the chlorocobalt(III) complex of the pentamine with LiOH (pH 8), followed by addition of concentrated HClO4 (pH 2) yields the corresponding mixture of the aquocobalt complexes.
ChemInform Abstract: Mixed‐Metal Cluster Formation by Carbonylmetalate‐Induced Pt‐P Bond Cleavage in (PtCl2(Ph2PCH2PPh2)).
Authors: BRAUNSTEIN P. , GUARINO N. , DE MERIC DE BELLEFON C. , RICHERT J.‐L. 
Published: May 2016

AbstractBis(diphenylphosphino)methane bridges the metal centers in the heterometal clusters (III)‐(VII) which are formed via partial ligand migration on reaction of the title compound (I) with carbonylmetalates as shown.
ChemInform Abstract: Chemically Stable Homocinnamyl Analogues of the Leukotrienes: Synthesis and Preliminary Biological Evaluation.
Authors: BERNSTEIN P. R. , SNYDER D. W. , ADAMS E. J. , KRELL R. D. , VACEK E. P. , WILLARD A. K. 
Published: May 2016

AbstractThe phosphonium bromide (I) is converted into the epoxy Z‐olefin (VI) which reacts with the protected peptide synthons (VII), yielding the adducts (VIII).
ChemInform Abstract: Displacement of “Pseudoanomeric” Hydroxyl Groups by Using the Diethyl Azodicarboxylate‐Triphenylphosphine System.
Authors: HAYASHIDA M. , SAKAIRI N. , KUZUHARA H. 
Published: May 2016

AbstractThe cyclohexenepentol derivative (I) undergoes isomerization via an SN2‐mechanism using the Mitsunobu system (PPh3/DEAD/PhCOOH).
ChemInform Abstract: Synthesis of 2‐Amino‐2‐deoxyarabinose Hydrochloride.
Authors: WOLFROM M. L. , OTANI S. 
Published: May 2016

AbstractOxidation of the protected β‐D‐arabinopyranoside (I) yields the ulose (II) which is reduced and subsequently tosylated to give the ribopyranoside (III).
ChemInform Abstract: New Syntheses of Pulvinic Acids via Reformatsky‐Type Reactions with Arylmethoxymaleic Anhydrides.
Authors: GEDGE D. R. , PATTENDEN G. , SMITH A. G. 
Published: May 2016

AbstractReaction of the zinc enolate derived from (I) with the anhydride (II) gives the β‐hydroxy ester (III) which is assumed to have the anti‐geometry.
ChemInform Abstract: Stereoisomeric Flavor Substances. Part 12. 3‐Methyl‐4‐octanolide ‐ “Quercuslactone, Whiskylactone” ‐ Structure and Properties of the Stereoisomers.
Authors: GUENTHER C. + , MOSANDL A. 
Published: May 2016

AbstractThe ketoester (III) is synthesized by reaction of pentanal (I) with the crotonate (II).
ChemInform Abstract: Synthesis of Blood Serum Thymic Factor and Its Analogs.
Authors: CERNY M. , KASAFIREK E. , ROVENSKY J. , KREPELKA J. 
Published: May 2016

AbstractThe blood serum thymic factor FTS (Vb) and its two analogs (IIIc) and (VIIb) are synthesized by a novel procedure starting from the octapeptide (IIIa) accessible by combining the fragments (I) and (II) which, in turn, are constructed by the usual procedures.
ChemInform Abstract: Reactions of 2,2,2‐Trichloroethyl 6‐Diazopenicillanate with Aromatic Aldehydes. X‐Ray Crystal Structures of (3S,8aS)‐2,2,2‐Trichloroethyl 2,3‐Dihydro‐6‐(4‐methoxyphenyl)‐2,2‐dimethyl‐5‐oxo‐5H,8aH‐thiazolo(2,3‐b) (1,3)oxazine‐3‐carboxylate and (2S,5S)‐2,2,2‐Trichloroethyl‐4‐formyl‐2‐(4‐methoxyphenyl)‐6,6‐dimethyl‐3‐oxotetrahydro‐1,4‐thiazine‐5‐carboxylate.
Authors: JEPHCOTE V. J. , JOWETT I. C. , JOHN D. I. , EDWARDS P. D. , LUK K. , SLAWIN A. M. , WILLIAMS D. J. 
Published: May 2016

AbstractReaction of the diazopenicillanate (I) with the aromatic aldehydes (II) affords mixtures of the spiro epoxides (III), the aldehydes (IV), the oxazinones (V) and the thiazepines (VI), the product distribution depending on the aldehyde and Lewis acid catalyst used.
ChemInform Abstract: Synthesis of Penicillanate Dimers: An X‐Ray Crystal Structure of a Penicillanylidene‐penicillanate.
Authors: HANLON B. , JOHN D. I. , WILLIAMS D. J. 
Published: May 2016

AbstractTreatment of the diazopenicillanate (I), its S‐oxide (IVa) and its S,S‐dioxide (IVb) with Cu(acac)2 according to method A) affords mixtures of the dimers (II) and (III) and (V) and (VI).
ChemInform Abstract: Reactive Ion Etching in SF6 Gas Mixtures
Authors: PINTO R. , RAMANATHAN K. V. , BABU R. S. 
Published: May 2016

Abstractcontaining varying amounts of O2, N2, H2, and Ar has been studied for crystalline and polysilicon, SiO2, and S3N4 using RF cathodes covered with Al disk or with a 0.5 cm thick circular quartz plate.
ChemInform Abstract: Stereochemical Aspects of the Bose Reaction for α‐Amino‐β‐lactam Synthesis
Authors: MANHAS M. S. , VAN DER VEEN J. M. , WAGLE D. R. , HEGDE V. R. , BARI S. S. , KOSARYCH Z. , GHOSH M. , KRISHNAN L. 
Published: May 2016

AbstractReview: (70 refs.
ChemInform Abstract: Hydrogen Halide Radical Anions.
Authors: RAYNOR J. B. , ROWLAND I. J. , SYMONS M. C. R. 
Published: May 2016

Abstract60Co γ irradiation of Me3NSO3 doped with Me3NHX (X: F, Cl, Br, I) at 77 K causes the formation of HX·‐ radical anions which are identified by ESR spectra.
ChemInform Abstract: Crystal Structure of Mn2O7.
Authors: SIMON A. , DRONSKOWSKI R. , KREBS B. , HETTICH B. 
Published: May 2016

AbstractMn2O7, prepared by reaction of KMnO4 with H2SO4 (+20% SO3), forms monoclinic crystals in the space group P21/c with Z = 8. In the structure the Mn atoms are surrounded tetrahedrally by O atoms.
ChemInform Abstract: EPR Evidence for New Rhodium Species in Na‐Y Zeolite.
Authors: SAYARI A. , MORTON J. R. , PRESTON K. F. 
Published: May 2016

AbstractThe EPR spectra of Rh‐exchanged Na‐Y zeolite heated at 400 °C under flowing O2 and subsequently evacuated at 20 °C indicate the presence of at least three different Rh(II) species.
ChemInform Abstract: Effect of Phosphoric Acid Treatment on the Catalytic Properties of Niobic Acid.
Authors: OKAZAKI S. , KURIMATA M. , IIZUKA T. , TANABE K. 
Published: May 2016

AbstractH3PO4 treatment of niobic acid (Nb2O5·nH2O) is very effective in maintaining a large surface area and a large amount of strong acid sites and in preventing crystallizing.
ChemInform Abstract: Dopant‐Induced Metal‐Support Interactions. Part 1. Influence on Chemisorptive Behavior.
Authors: AKUBUIRO E. C. , VERYKIOS X. E. 
Published: May 2016

AbstractTiO2 supports doped with KNO3, MgO, GeO2, WO3, Sb2O5, or Ta2O5 have been used as carriers for Pt crystallites in order to investigate the concept of dopant‐induced metal‐support interactions.
ChemInform Abstract: Selective Oxidation Catalysts Containing Antimony for the Conversion of 1‐Butene to Butadiene. Part 1. Preparation and Characterization.
Authors: STRAGUZZI G. I. , BISCHOFF K. B. , KOCH T. A. , SCHUIT G. C. A. 
Published: May 2016

AbstractSynthesis and characterization (XPS, XRD, X‐ray fluorescence, BET surface area measurements) of a series of MSbO4 (M: Fe, Al, Cr, Rh) and CoSb2O6 catalysts have been carried out.
ChemInform Abstract: IR and NMR Spectroscopic Investigations on Substituent Effects in Siloxy and Alkoxysilanes.
Authors: POPOWSKI E. , HOLST N. , KELLING H. 
Published: May 2016

AbstractThe position and the integral intensity of the ν(SiH) band and the 29Si‐1H coupling constants of the compounds (I)‐(IV) are measured and show a dependence on R, m and n. Spectroscopic data of (I) and (II) correlate with the σ* constants of the substituents R. The influence of the substituent effects through the (Me2)Si‐O‐ and (Me2)C‐O‐group on the Si‐H bond is approximately the same.
ChemInform Abstract: The Phenomenon of Conglomerate Crystallization. Part 9. Clavic Dissymmetry in Coordination Compounds. Part 7. An Investigation of the Crystallization Behaviour of (trans‐Co(en)2(ONO)X)Y, (trans‐Co(en)2(NO2)X)Y, with (X: NO‐ 2, NCS‐) and (Y: I‐, ClO‐ 4, NO‐ 3, NCS‐) and the Crystal Structures of Racemic (trans‐Co(en)2(NO2)2)I and of Racemic (trans‐Co(en)2(NO2)2)NCS. Why Are Some Conglomerates and Some Racemic?
Authors: BERNAL I. , CETRULLO J. 
Published: May 2016

AbstractThe compound (Ia) crystallizes in the space group C2/c with Z=4 and (Ib) in P1, Z=2.
ChemInform Abstract: The Stabilization of α‐Substituted Oxy‐ and Thiocarbanions.
Authors: BERNARDI F. , BOTTONI A. , VENTURINI A. , MANGINI A. 
Published: May 2016

AbstractResults obtained in an ab initio study at an extended level of the effects of the oxy and thio substituents upon the stabilities of α‐carbanions are reported.
ChemInform Abstract: Electronic Structure of Piano‐Stool Dimers. Part 3. Relationships Between the Bonding and Reactivity of the Organically Bridged Iron Dimers (CpFe(CO))2(μ‐CO)(μ‐L) (L: CO, CH2, C=CH2, CH+).
Authors: BURSTEN B. E. , CAYTON R. H. 
Published: May 2016

AbstractThe electronic structures of the title molecules are investigated by Fenske‐Hall MO calculations.
ChemInform Abstract: Structure and Properties of the Products of the Thermal Cyclization of 1‐Acetoxy‐3,7‐dimethyl‐1,2,6‐octatriene.
Authors: ERMAN M. B. , VOLKOVA O. O. , CHERKAEV G. V. , PRIBYTKOVA I. M. , ANTIPIN M. YU. , STRUCHKOV YU. T. , MOCHALIN V. B. 
Published: May 2016

AbstractThe thermal cyclization of the title compound (I) affords a separable mixture of the cyclopentene (II), the bicyclo(2.1.1)hexane (III) and the exo‐ and endo‐acetoxybicyclo(3.2.0)heptenes (IV) and (V), the latter with "bridgehead" carbon‐carbon double bonds.
ChemInform Abstract: Mechanism of the Photodissociation of s‐Tetrazine: A Unimolecular Triple Dissociation.
Authors: SCHEINER A. C. , SCUSERIA G. E. , SCHAEFER H. F. III 
Published: May 2016

AbstractThe triple dissociation of s‐tetrazine to HCN + HCN + N2 has been investigated by ab initio molecular electronic structure theory.
ChemInform Abstract: Effect of Phenyl Substitution on the Photochemistry of Conformationally Restricted Cycloalkanones.
Authors: CASAL H. L. , MCGIMPSEY W. G. , SCAIANO J. C. , BLISS R. A. , SAUERS R. R. 
Published: May 2016

AbstractThe photochemical and photophysical (fluorescence spectra, quantum yields, lifetimes, phosphorescence) properties of the ketones (I) are described.
ChemInform Abstract: Electron Transfer. Part 83. Reductions of Unsaturated Esters with Vitamin B12s (Cob(I)alamin).
Authors: PILLAI G. C. , GOULD E. S. 
Published: May 2016

AbstractThe diesters of maleic and fumaric acid (III) and (I), respectively, are rapidly reduced to succinic esters (II) by cob(I)alamin in aqueous media.
ChemInform Abstract: A Convenient Synthesis of Novel Pentacyclo(5.4.0.02,6.03,10.05,9)undecane‐8,11‐dione‐4‐spiro‐1‐cyclopropane.
Authors: SINGH V. K. , RAJU B. N. S. , DEOTA P. T. 
Published: May 2016

AbstractThe polycyclic title compound (IV) is prepared by thermal Diels‐Alder reaction or cycloaddition in micellar media of the spirodiene (I) and p‐benzoquinone (II), followed by photochemical intramolecular (2 + 2)cycloaddition of the primary adduct (III).
ChemInform Abstract: Iodoarylation of Acrylonitrile and Acrylic Esters by Aryldiazonium Salts.
Authors: GANUSHCHAK N. I. , OBUSHAK N. D. , POLISHCHUK O. P. 
Published: May 2016

AbstractThe reaction between the aryldiazonium salts (I) and acrylonitrile or the acrylic esters (II) in the presence of alkali iodides yields the iodoarylalkanes (III).
ChemInform Abstract: Reaction of 4‐Ethoxy‐2‐phenyl‐2‐oxazolin‐5‐one with Primary Amines in the Presence of Thiols: One‐Flask Synthesis of N‐Substituted 2‐Benzoylamino‐3‐alkylthio‐2‐propenamides.
Authors: TIKDARI A. M. , TRIPATHY P. K. , MUKERJEE A. K. 
Published: May 2016

AbstractThe 2‐benzoylamino‐3‐alkylthio‐2‐propenamides (IV) are prepared by treating the oxazolinone (I) with the primary amines (II) and the thiols (III).
ChemInform Abstract: A Convenient Synthesis of Glycidyl Esters (2,3‐Epoxypropyl Alkanoates).
Authors: OTERA J. , MATSUZAKI S. 
Published: May 2016

AbstractThe organotin phosphate catalyzed reaction of epichlorohydrin (I) with carboxylic acids (II) yields a mixture of the ester chlorohydrins (III) and (IV).
ChemInform Abstract: Regioselective Synthesis of 2‐Hydroperoxy‐2‐methylenebutanoic Acid Derivatives via Photooxygenation of Tiglic Acid Derivatives.
Authors: ADAM W. , GRIESBECK A. 
Published: May 2016

AbstractPhotooxygenation of the E‐2‐methyl‐2‐butenoic acid derivatives (I) yields the 3‐hydroperoxy‐2‐methylenebutanoic acid derivatives (II).
ChemInform Abstract: Guanidinophenyl Derivatives of Pyrazole: Synthesis and Inhibitory Effect on Serine Proteinases, Blood Coagulation and Platelet Aggregation.
Authors: FERRONI R. , MENEGATTI E. , SCALIA S. , ORLANDINI P. , GUARNERI M. , TADDEO U. 
Published: May 2016

AbstractThe aminopyrazoles (I) react with the acyl chlorides (II) to form the N‐acylaminopyrazoles (III).
ChemInform Abstract: A Convenient Synthesis of Nitro‐Substituted 1,2‐Benzisothiazol‐3(2H)one 1,1‐Dioxides (Nitrosaccharins).
Authors: SAARI W. S. , SCHWERING J. E. 
Published: May 2016

Abstract3‐Nitrophthalic anhydride (I) is converted to 6‐nitroanthranilic acid (IVa) and the corresponding ester (IVb).
ChemInform Abstract: A Convenient Synthetic Method for β‐Alkoxy‐ and β‐Phenoxyacrylic Acids and 3,4‐Dihydro‐2H‐pyran‐5‐ and 2,3‐Dihydrofuran‐4‐carboxylic Acids.
Authors: HOJO M. , MASUDA R. , SAKAGUCHI S. , TAKAGAWA M. 
Published: May 2016

AbstractThe β‐trihaloacetyl vinyl ethers (III) and (VI), prepared from the vinyl ethers (I) and (V) and the trihaloacetic anhydride (II), are hydrolyzed by bases in benzene to yield the corresponding acids (IV) and (VII).
ChemInform Abstract: Reaction of 2‐Acetyltetralone with Some Esters of Benzoic Acid.
Authors: ARCOLEO A. , GOTTUSO M. , GIAMMONA G. , FONTANA G. , ABBATE G. 
Published: May 2016

AbstractThe triketones (III), prepared from 2‐acetyltetralone (I) and the esters (II), are cyclized by sulfuric acid to form the fused pyranones (IV).
ChemInform Abstract: A Novel and Convenient Synthesis of Substituted Coumarins.
Authors: AWASTHI A. K. , TEWARI R. S. 
Published: May 2016

AbstractN,N‐Dimethyl(dichlorophosphoryloxymethylene)ammonium chloride (III), prepared from DMF and phosphoryl chloride, is used as the phosphorylating agent in the anellation of the 2‐hydroxyphenyl aldehyde and ketones (I) with the carboxylic acids (II) to yield the coumarins (IV).
ChemInform Abstract: Preparation and Some Spectral Properties of Benzo‐Fused 1,4‐Dimethyl2(1H)‐quinolinones.
Authors: ITO K. , MARUYAMA J. , SHIMAMORI T. 
Published: May 2016

AbstractThe N‐methyl naphthyl amines (II), obtained from the amides (I), react with diketene (III) to produce the acetoacetanilides (IV).
ChemInform Abstract: Synthesis and Pharmacological Evaluation of Cyclic and Opened Thioanalogues of Piperoxan.
Authors: STRAPPAGHETTI G. , BRASILI L. 
Published: May 2016

AbstractPiperidine (I) is coupled with allyl bromide (II) to give N‐allylpiperidine (III) which reacts with bromine to form the dibromopropylpiperidine (IV).
ChemInform Abstract: Heterocycles with Quinoid Functions. Part 7. Benzo(f)quinazoline‐7,10‐ diones with Potential Antitumor Activity.
Authors: PARROT‐LOPEZ H. , DELACOTTE J.‐M. , RENAULT J. , CROS S. 
Published: May 2016

Abstract6‐Methoxy‐2‐naphthylamine (I) reacts with the ethoxymethylene urethane (II) to yield the formamidine (III).
ChemInform Abstract: Reaction of Phenyl Lithium with a Series of Pyrazines. Trapping of Reactive Intermediates with Methyl Benzoate.
Authors: METTEY Y. , VIERFOND J.‐M. 
Published: May 2016

AbstractThe pyrazines (I), (VII), and (IX) are treated with phenyl lithium (II) in the presence of methyl benzoate to yield the products (IV) ‐ (VI), (VIII), and (X) ‐ (XII) respectively.
ChemInform Abstract: New Multidentate Ligands. Part 28. Synthesis and Evaluation of New Macrocyclic Ligands Containing Bidentate Endocyclic Catechol Donor Groups.
Authors: SUN Y. , MARTELL A. E. , MOTEKAITIS R. J. 
Published: May 2016

AbstractThe synthesis of the 26‐membered macrocyclic ligand (IVb) is accomplished by high dilution condensation of the compounds (Id) and (II), deblocking of the product (III) (→ (IVa)) and subsequent reaction with the acid (V).
ChemInform Abstract: Cycloaddition Reactions of Benzothiete with Azomethines.
Authors: JACOB D. , MEIER H. 
Published: May 2016

AbstractBenzothiete (I) is thermolyzed to produce the o‐quinoid intermediate (II) which undergoes a cycloaddition reaction with the azomethines (III) to produce the benzothiazine derivatives (IV).
ChemInform Abstract: Synthesis of (+)‐ and (‐)‐Homononactic Acid. Total Synthesis of the Macrotetrolide Tetranactin by “Reverse Coupe du Roi”. Proposal of the Structure of Isodinactin.
Authors: SCHMIDT U. , WERNER J. 
Published: May 2016

AbstractThe (+)‐ and (‐)‐homononactic acid esters (V), prepared in several steps from 2‐vinylfuran (I) and (S)‐ethyloxirane (II), are used for the synthesis of tetranactin (X).
ChemInform Abstract: Novel Syntheses of 2,3‐Dihydro‐5H‐1,4‐benzoxathiepins and 1,2,3,5‐Tetrahydro‐4,1‐benzothiazepines.
Authors: ISHIBASHI H. , OKADA M. , AKIYAMA A. , NOMURA K. , IKEDA M. 
Published: May 2016

AbstractThe chloroacetates (II), obtained by chlorination of the thioethers (I), are cyclized to yield the benzoxathiepins or benzothiazepines (III).
ChemInform Abstract: Structure of a Monomeric Phosphinoborane: Synthesis and X‐Ray Crystal Structure of (Diphenylphosphino)dimesitylborane.
Authors: FENG X. , OLMSTEAD M. M. , POWER P. P. 
Published: May 2016

AbstractThe title compound is prepared by 1:1 molar reaction of dimesitylboryl fluoride and LiPPh2 in ether with 40% yield and characterized by 31P and 11B NMR spectroscopy in addition to X‐ray crystallography (space group P21/c, Z=4).
ChemInform Abstract: Chemistry of Boron. Part 178. Boron‐Nitrogen Compounds. Part 111. Reactions of Borazines with Pyrazole and Related Studies: (μ‐Amido)(μ‐pyrazolato)diboron Species, Novel Relatives of the Pyrazaboles.
Authors: BIELAWSKI J. , DAS M. K. , HANECKER E. , NIEDENZU K. , NOETH H. + 
Published: May 2016

AbstractThe reactions of borazines (Ia), (Ic) or of bis(dimethylamino)boryl amines (IIb), (IIc) with pyrazole (III) in molar ratio 1:3 lead to the title compounds (IV) containing a central B2N3 ring system.
ChemInform Abstract: Synthesis of 1‐Amino‐1‐(pyridyl)‐methanephosphonates and Corresponding Acids via Pyridylaldimines.
Authors: BODUSZEK B. , WIECZOREK J. S. 
Published: May 2016

AbstractThe pyridine carbaldehyde (Ia) reacts with the corresponding amines (II) to the intermediate Schiff bases (IV) which give the title compounds (V) on treatment with the dialkyl phosphites (III).
ChemInform Abstract: Trimethylsilyl and Trimethylstannyl Esters of the Trithiophosphonic Acids; Preparation, Protolysis, and Further Reactions.
Authors: HAHN J. , NATANIEL T. 
Published: May 2016

AbstractThe trithiophosphonic acid bis(silyl) esters (II) are formed from the bis(silyl) phosphanes (I) by reaction with S8.