bluuebunny/crossref_metadata_2025 huggingface dataset:
ChemInform Abstract: Solid‐Phase Synthesis of Peptides and Glycopeptides on Polymeric Supports with Allylic Anchor Groups.
Authors: KUNZ H. , DOMBO B.
Published: May 2016

Polymeric title supports such as (III) prepared as shown in the scheme offer several advantages: 1. The solid phase synthesis of peptides on (III) can be carried out with acid‐labile as well as with base‐labile protecting groups.
ChemInform Abstract: Total Synthesis of Hydrocinchonidine and Hydrocinchonine via Photooxygenation of an Indole Derivative.
Authors: IHARA M. , TANIGUCHI N. , NOGUCHI K. , FUKUMOTO K. , KAMETANI T.
Published: May 2016

The intermediate aldehyde (VI) undergoes ring transformation via photooxygenation to give the 4‐acylquinoline (VIIa) which is deprotected to give (±)‐hydrocinchotoxine (VIIb).
ChemInform Abstract: The Phase Relations in the System SrO‐Y2O3‐Al2O3
Authors: BEREZOVSKAYA I. V. , EFRYUSHINA N. P. , FOTIEV V. A. , BAZUEV G. V. , ZUEV M. G.
Published: May 2016

are investigated between 600 and 1500 °C under air.
ChemInform Abstract: Influence of the Starting Aluminum Salt on the Surface and Acid Properties of AlPO4 Catalysts Precipitated with Ammonium Hydroxide.
Authors: CAMPELO J. M. , GARCIA A. , LUNA D. , MARINAS J. M.
Published: May 2016

AlPO4 catalysts are prepared by precipitation from aqueous H3PO4 solutions of AlCl3, Al2(SO4)3, or Al(NO3)3 and the effect of the Al source on the catalytic activity for cyclohexene skeletal isomerization (CSI) is studied.
ChemInform Abstract: Preparation and Investigation of the Properties of Single Crystals of CaIn2Se4.
Authors: YAGUBOV N. I. , GULIEV T. N. , RUSTAMOV P. G. , CHIRAGOV M. I. , SAFAROV V. G. , ALIEV KH. M.
Published: May 2016

The known title compound is prepared by solid phase reaction between CaSe and In2Se3 in evacuated (1.33 Pa) quartz ampoules heated to 1200 K (4 h).
ChemInform Abstract: Thermodynamics and NMR Studies of Lanthanoid Complexation by Ethylenediamine‐NN′‐diacetate‐NN′‐di‐3‐propionate.
Authors: RIZKALLA E. N. , NIU C. , CHOPPIN G. R.
Published: May 2016

The results show that substitution of C2H4CO2‐ groups for CH2CO2‐ groups decreases the stability of the complex.
ChemInform Abstract: Oxidation of Alcohols by Ca(OCl)2‐Al2O3.
Authors: KIM K. S. , SONG Y. H. , HAHN C. S.
Published: May 2016

The title oxidation of the alcohols (I) or (III) leads either to the aldehydes (IIa), the ketones (IIb) and (IIc) or the acids (IV).
ChemInform Abstract: Novel and Effective Methods for α‐Thioalkylation of Aromatic Compounds.
Authors: TORISAWA Y. , SATOH A. , IKEGAMI S.
Published: May 2016

Methylthiomethylation of the benzenes (I) with the methylsulfinylmethyl sulfide (II) or the methylthiomethyl sulfone (V) in the presence of AlCl3 leads to the formation of the o‐ (III) and p‐methylthiomethyl compounds (IV).
ChemInform Abstract: Polyfluorotriphenylenes Derived from Fluoroaromatic Lithium Reagents. The Crystal and Molecular Structure of Hexadecafluoro‐1‐phenyltriphenylene.
Authors: BEAUMONT C. A. , BOWEN JONES J. , BROWN D. S. , MASSEY A. G. , WATKIN J.
Published: May 2016

The perfluoroaryne (II), prepared from the biphenyl (I), reacts with butyllithium in the absence of trapping agents to form the title compound (III).
ChemInform Abstract: Facile Rearrangement of 2‐Amino‐3‐carbethoxy‐4‐ethylfuro(3,2‐b)pyridinium Cation to 2‐Oxo‐3‐cyano‐4‐ethyl‐4H‐furo(3,2‐b)pyridine.
Authors: DESIDERI N. , MANNA F. , STEIN M. L.
Published: May 2016

The N‐ethylfuropyridinium iodide (III), obtained by ethylation of the furopyridine (I), undergoes the base‐induced rearrangement mentioned in the title, yielding the oxofuropyridine (IV).
ChemInform Abstract: Synthesis and Anticonvulsant Activity of Some Novel 3‐Aminoquinazolines.
Authors: TITA T. T. , KORNET M. J.
Published: May 2016

The o‐aminobenzoic acid hydrazides (III) are obtained either by DMAP‐catalyzed reaction of the isatoic anhydrides (I) with the hydrazines (II) or by coupling the o‐nitrobenzoic acid (IV) with the hydrazines (II) and subsequent catalytic hydrogenation of (V).
ChemInform Abstract: Synthesis and Application of Some 1‐(8‐Hydroxy‐5(or 7)‐quinolinyl)alkylidene‐substituted Heterocycles as Bactericides, Fungicides, and Bioregulator.
Authors: KHALIL Z. H. , YANNI A. S. , KHALAF A. A. , ABDEL‐HAFEZ A. A. , ABDO R. F.
Published: May 2016

Reaction of the quinolinecarbaldehyde (I) with the malonate (II) yields the ethoxycarbonylpropenoate (III), which undergoes cyclization to give the title compounds (V).
ChemInform Abstract: Reaction of Silyl and Germyl Ketenes with Silyldiazomethanes.
Authors: ZAITSEVA G. S. , LUTSENKO I. F. , KISIN A. V. , BAUKOV YU. I. , LORBERTH J.
Published: May 2016

The silyldiazomethane (I) reacts with the silyl‐ and germyl‐substituted ketenes (II) to give the Z,Z‐cyclopropanones (III).
ChemInform Abstract: Synthesis and Structure of Pseudo Atrane Compounds Derived from 2,2′,2′′Nitrilotriphenol and BH3·THF, P(NMe2)3 and AlCl3.
Authors: PAZ‐SANDOVAL M. A. , FERNANDEZ‐VINCENT C. , URIBE G. , CONTRERAS R. , KLAEBE A.
Published: May 2016

The title compounds (III), (VIII), (XI) are synthesized from the nitrilophenol (I) as outlined in the scheme.
ChemInform Abstract: Synthesis of Vinca Alkaloids and Related Compounds. Part 38. Formation of Dimers Under Polonovski Reaction Conditions.
Authors: MOLDVAI I. , SZANTAY C. JUN. , TOTH G. , VEDRES A. , KALMAN A. , SZANTAY C.
Published: May 2016

The reaction of the cis‐configurated N‐oxides (I) with acetic anhydride yields the dimers (II).
ChemInform Abstract: Structural Study of a New Superconducting Phase in the Bi‐Sr‐Cu‐O System
Authors: SUGIYAMA K. , WASEDA Y. , MOROISHI K. , INOUE A. , MASUMOTO T.
Published: May 2016

is performed by X‐ray and electron diffraction.
ChemInform Abstract: Preparation of SnO2 and Nb2O5 Supported Vanadium Oxide Catalysts by a Column‐Exchange Adsorption Method and Dispersed States of Vanadia Species.
Authors: KERA Y. , KAWASHIMA T.
Published: May 2016

V2O5/SnO2 and V2O5/Nb2O5 catalysts prepared by using the title method and a NH4VO3 solution of various pH (pH 2, 4, and 7) are studied by ESR and their catalytic activities for dehydration of 2‐propanol are determined.
ChemInform Abstract: Transition States in Intramolecular SN2 Reactions of Carbanions. The Closure of Three‐, Four‐ and Five‐Membered Rings.
Authors: BENEDETTI F. , FABRISSIN S. , RUSCONI A. , STIRLING C. J. M.
Published: May 2016

The kinetics of the ring closure of the anions generated from sulfonium salts (III) to give (IV) are measured (Hammett correlations).
ChemInform Abstract: E‐ or Z‐Selective Horner‐Wittig Reactions of Substituted Bicyclo‐(3.3.0)octan‐3‐ones with Chiral Phosphonoacetates.
Authors: REHWINKEL H. , SKUPSCH J. , VORBRUEGGEN H. +
Published: May 2016

Olefination of the cyclopentanone (I) with the phosphonoacetate (II) gives E/Z‐mixtures of the α,β‐unsaturated esters (III).
ChemInform Abstract: Homologation of α,β‐Ethylenic Ketones in Substituted β,γ‐Ethylenic Ketones Using Phosphoniosilylation.
Authors: CRISTAU H. J. , TORREILLES E. , BAROIS‐GACHERIEU C.
Published: May 2016

Treatment of methyl vinyl ketone (I) with triphenylphosphine (II) and chlorotrimethylsilane (III) results in the formation of the siloxybutenylphosphonium chloride (IV).
ChemInform Abstract: A Versatile Synthesis of 3‐Substituted 5‐Alkylbutyrolactones via Dyotropic Rearrangement.
Authors: BLACK T. H. , FIELDS J. D.
Published: May 2016

The substituted acetic acids (I) are coupled with propionaldehyde (II) and then cyclized, yielding the β‐lactones (IV) via (III).
ChemInform Abstract: Regio‐ and Chemoselective Addition of Alkynyltin Reagents to the 2‐Position of 3‐Acylpyridines Activated by Methyl Chloroformate: Selective Synthesis of 2,3‐Disubstituted 1,2‐Dihydropyridines.
Authors: YAMAGUCHI R. , HATA E. , UTIMOTO K.
Published: May 2016

The 3‐pyridylcarbonyl compounds (I) are coupled with the alkynylstannanes (II) in the presence of methyl chloroformate (III), yielding predominantly the 2,3‐disubstituted dihydropyridines (IV), together with minor amounts of the 3,6‐disubstituted analogues (V).
ChemInform Abstract: Synthesis of 2‐Aryl‐2,3‐dihydro‐3‐piperazinylmethyl‐1,5‐benzothiazepin‐4(5H)‐ones and Related Compounds.
Authors: OHNO S. , MIZUKOSHI K. , IZUMI K. , KATO K. , HORI M.
Published: May 2016

The reaction of the benzylidenemalonates (II) with 2‐aminobenzenethiol (I) to give the benzothiazepinones (IV) is investigated, in order to explain and control the formation of the by‐products (III).
ChemInform Abstract: Medium‐Sized Silicon Rings. Part 1. Silicon‐ and Carbon‐Functional Derivatives of 1,3,6‐Trioxa‐2‐silacyclooctanes.
Authors: D'YAKOV V. M. , KIR'YANOVA A. N. , KIREEV L. N. , CHERNYSHEV A. E. , BOCHKAREV V. N. , ANDROSENKO S. I.
Published: May 2016

Transesterification of the diethoxysilanes (I) with diglycol (II) gives the trioxasilacyclooctanes (III).
ChemInform Abstract: Organophosphorus Chemistry. Ester‐Chloride Conversion Under Mild Conditions at Phosphorus.
Authors: YLAGAN L. , BANJAMIN A. , GUPTA A. , ENGEL R.
Published: May 2016

The dimethyl phosphonates (I) are treated with dichlorotriphenylphosphorane, formed by addition of chlorine to triphenylphosphine, to produce the monochlorides (II).
ChemInform Abstract: Dephenylation of Pentaphenylantimony in Toluene and Alcohols in the Presence of Copper(II) Acetate.
Authors: DODONOV V. A. , BOLOTOVA O. P. , GUSHCHIN A. V.
Published: May 2016

Pentaphenylantimony (I) decomposes in the presence of catalytic amounts of cupric acetate to give triphenylantimony (II), biphenyl (III), and benzene (IV).
ChemInform Abstract: Dehydrobromination of 2,2,6β‐Tribromo‐, 2α,4,6β‐Tribromo‐, and 2,2,4,6β‐Tetrabromocholest‐4‐en‐3‐one.
Authors: ROEMER J. + , SCHELLER D.
Published: May 2016

Whereas the double dehydrobromination of (Ia) and (Ic) yields the expected (IIa) and (IIc), resp., surprisingly, (IIa) is isolated from (Ib) as well.
ChemInform Abstract: Investigation of the Coordination of Lead in PbO‐PbF2 Glasses Using XANES.
Authors: RAO K. J. , RAO B. G. , WONG J.
Published: May 2016

XANES is used to study the evolution of the symmetry in the PbO2F4‐units present in PbO‐PbF2 glasses as a function of PbF2 concentration.
ChemInform Abstract: N‐Chloro‐Nitrene Complexes of Tungsten: WCl4(NCl) and (CH3CN‐WCl4(NCl)).
Authors: GOERGE A. + , DEHNICKE K. , FENSKE D.
Published: May 2016

The IR spectrum of the title compound (III) indicates the formation of dimeric units via chloro bridges.
ChemInform Abstract: Chemistry of 1,1,2,2‐Tetracyanoethane. Part 9. Condensation of 1,1,2,2‐Tetracyanoethane with Acrolein, Nitroethene, Vinyl Ketones and Compounds with an Exocyclic C‐C Double Bond.
Authors: NASAKIN O. E. , LUKIN P. M. , ZIL'BERG S. P. , TERENT'EV P. B. , BULAI A. KH. , D'YACHENKO O. A. , ZOLOTOI A. B. , KONOVALIKHIN S. V. , GUSEV A. I. , SHELUDYAKOV V. D. , ATOVMYAN L. O.
Published: May 2016

Some adduct formations of the title compound (I) are investigated.
ChemInform Abstract: The Stereochemistry of the Addition Reactions of Alkenylaromatic Compounds Promoted by Cerium(IV) Ammonium Nitrate and Cerium(IV) Acetate.
Authors: BACIOCCHI E. , ROL C. , SEBASTIANI G. V.
Published: May 2016

Oxidation of the cyclic alkenylaromatics (I) proceeds stereoselectively to form the trans dinitrates (II) with a 90:10 preference over the cis isomers (III).
ChemInform Abstract: Hydrozirconation of Oleyl Ethers.
Authors: KARLSSON S. , HALLBERG A. , GRONOWITZ S.
Published: May 2016

Hydrozirconation of the double bond of the oleyl ethers (I) is accompanied by cis/trans isomerization (→ (IV)) and migration of the zirconium moiety either to the terminal methyl group (→ (V)) or toward the end bearing the ether function (→ (VII)).
ChemInform Abstract: Facile Ramberg‐Baecklund Reactions for the Synthesis of 2,3‐Disubstituted Cyclopentenones. A Short Synthetic Route to Tetrahydrodicranenone B.
Authors: CASY G. , TAYLOR R. J. K.
Published: May 2016

The thiopyranone (I) is converted into the unsaturated cyclic keto sulfones (II) which react with trimethylsilyl iodide (III) and ethylene glycol (IV) to give the iodo sulfones (V).
ChemInform Abstract: A New Class of Photolabile Chelators for the Rapid Release of Divalent Cations: Generation of Caged Ca and Caged Mg.
Authors: ELLIS‐DAVIES G. C. R. , KAPLAN J. H.
Published: May 2016

Starting with 2‐vinyl‐4,5‐dimethoxynitrobenzene (III), prepared from the benzaldehyde (I), the chelators (VI) or (XII) are synthesized as shown in the reaction scheme.
ChemInform Abstract: Reaction of Phenanthrene with tert‐Butylating Agents Under Friedel‐Crafts Conditions.
Authors: POZDNYAKOVICH YU. V.
Published: May 2016

The reaction between phenanthrene (I) and tBuOH (IIa) in the presence of TFA or between (I) and tBuCl (IIb) in the presence of TiCl4 or FeCl3/MeNO2 or AlCl3/MeNO2 affords mixtures of the 2‐tert‐butyl derivative (III), the 3‐tert‐butyl derivative (IV) and the 2,6‐, 2,7‐ and 3,6‐ditert‐butyl derivatives (V)‐(VII).
ChemInform Abstract: Palladium‐Catalyzed Coupling of 2‐Bromoanilines with Vinylstannanes. A Regiocontrolled Synthesis of Substituted Indoles.
Authors: KROLSKI M. E. , RENALDO A. F. , RUDISILL D. E. , STILLE J. K.
Published: May 2016

The o‐bromoanilines (IV), prepared by convenient methods such as Sandmeyer reaction and reduction of nitrobenzenes, are N‐tosylated and then treated with the vinylstannane (VII) in the presence of a Pd(0) catalyst, yielding the 2‐vinyl‐N‐tosylanilines (VIII).
ChemInform Abstract: In vitro Study of the Cytotoxicity of Carbazole Derivatives. Part 1. Nitro and Amino‐9H‐carbazoles.
Authors: TABKA T. , HERON J.‐F. , GAUDUCHON P. , LE TALAER J.‐Y. , LANCELOT J. C. , RAULT S. , ROBBA M.
Published: May 2016

A variety of ca. 30 carbazoles such as (I) or (II) is prepared by known or common methods and their cytotoxicity is studied in vitro, in a clonogenic assay using murine leukemia 1210.
ChemInform Abstract: A New Route to 1,4‐Disilabenzenes and 1,4‐Disilabarrelenes.
Authors: SEKIGUCHI A. , GILLETTE G. R. , WEST R.
Published: May 2016

Heating the bi(silanorboranadienyl) (I) with the acetylenes (II) produces the 1,4‐disilabarrelenes (III); the probable immediate precursor is a 1,4‐disilabenzene.
ChemInform Abstract: Exploitation of Crystalline Architecture and Solution Data in the Rational Preparation of Novel Mixed‐Metal ATP Complexes.
Authors: CINI R. , MARZILLI L. G.
Published: May 2016

Crystallization of ATP metal complexes of composition (I) is achieved using two different metal salts in the reaction with the disodium salt of ATP and bis(2‐pyridyl)amine in aqueous solution at pH 4.5: 1) Ca(NO3)2 and MgSO4 giving a distorted (M1(OH2)6)2+ coordination sphere and 2) M2 salts e.g. Cd(NO3)2, ZnSO4, or FeSO4 with an O/N preference toward ATP and predominantly "open" coordination of ATP as well as a greater preference for phosphate coordination over H2O coordination.
ChemInform Abstract: A Convenient Synthesis of Alkali Metal Selenides and Diselenides in Tetrahydrofuran and the Reactivity Differences Exhibited by These Salts Towards Organic Bromides. Effect of Ultrasound.
Authors: THOMPSON D. P. , BOUDJOUK P.
Published: May 2016

The alkali metals (II) are reduced with elemental selenium (I) to form the selenides (III) or the diselenides (IV) depending on the ratio of the reactants.
ChemInform Abstract: Reactions of Bis(cyclopentadienyl)‐ and Bis(pentamethylcyclopentadienyl)titanium and Bis(cyclopentadienyl)‐ and Bis(pentamethylcyclopentadienyl)zirconium Dicarbonyls with Dihydrogen Selenide: Evolution of Dihydrogen and Formation of Hydroselenides and Selenides. Comparison with the Analogous Reactions of Dihydrogen Sulfide and Oxide.
Authors: BOTTOMLEY F. , CHIN T.‐T. , EGHAREVBA G. O. , KANE L. M. , PATAKI D. A. , WHITE P. S.
Published: May 2016

The selenide‐bridged dimers (III) are obtained by reaction of the title compounds (I), (IV), and (VI) with H2Se (II) under the conditions indicated in the scheme.
ChemInform Abstract: Chemistry of Heavy Carbene Analogues R2M (M: Si, Ge, Sn). Part 12. Concerted and Nonconcerted Insertion Reactions of the Germylene Me2Ge into the Carbon‐Halogen Bond.
Authors: KOECHER J. + , LEHNIG M. , NEUMANN W. P.
Published: May 2016

Me2Ge (II) is generated thermally or photochemically from the germabenzonorbornadiene (I) and exists in both cases in the singlet state.
ChemInform Abstract: Trisubstituted Stannyllithium as a Double Electron Equivalent. Reaction with α,β‐Enones.
Authors: SATO T. , WATANABE M. , WATANABE T. , ONODA Y. , MURAYAMA E.
Published: May 2016

Michael‐addition reaction of trimethylstannyllithium (III) to α,β‐unsaturated ketones such as (IV) yields the β‐stannyl ketones (V) which undergo TiCl4‐catalyzed destannylation partly accompanied by ring contraction, forming the satured ketones (VI) and (VII).
ChemInform Abstract: First Example of a Mixed‐Spin Trinuclear Manganese(II) Complex: (MnN6(S = 1/2)) (MnO6(S = 5/2)) (MnN6(S = 1/2)).
Authors: BASU P. , PAL S. , CHAKRAVORTY A.
Published: May 2016

The title complex (I), in which Mn(II) is discretely present in both low‐spin (S = 1/2) and high‐spin (S = 5/2) configuration, is obtained by 1:2 molar reaction of Mn(II) perchlorate with (phenylazo)benzaldoxime in methanol in the presence of KOH.
ChemInform Abstract: Steroids and Related Studies. Part 81. Potential Azasteroidal Neuromuscular Blockers.
Authors: BHARDWAJ T. R. , KAPOOR S. , SHEKHAR C. C. , JINDAL D. P. , SINGH H.
Published: May 2016

The androstane derivative (V) (HS‐777) is prepared from the dione (I) as shown.
ChemInform Abstract: Regiospecific Ring‐Opening Reactions of Benzyl 3,4‐Anhydro‐α‐D‐ribopyranoside with Nucleophiles: A Systematic Study.
Authors: RAO M. V. , NAGARAJAN M.
Published: May 2016

The anhydroribopyranosides (IV) and (VI), prepared from the pentanopyranoside (I) as shown in the reaction scheme, are treated with various nucleophiles such as (VII).
ChemInform Abstract: Synthesis and Study of Affinity Labeling Analogues of Pristinamycin IA.
Authors: BOUHALLAB S. , CAPMAU M.‐L. , LE GOFFIC F.
Published: May 2016

Pristinamycin IA (Ia) and IIA (II) are two antibiotics of the streptogramin family which act on bacterial ribosomes.
ChemInform Abstract: Probing Metal Cluster Formation in NaY Zeolite by 129Xe NMR.
Authors: CHMELKA B. F. , RYOO R. , LIU S.‐B. , DE MENORVAL L. C. , RADKE C. J. , PETERSEN E. E. , PINES A.
Published: May 2016

It is demonstrated that 129Xe NMR can be used to study changes in the chemical environment of NaY‐supported Pt guest species by monitoring shifts in the resonance signal induced by different chemical and thermal treatments.
ChemInform Abstract: Sintering and Microstructure of Mullite Aerogels.
Authors: RAHAMAN M. N. , DE JONGHE L. C. , SHINDE S. L. , TEWARI P. H.
Published: May 2016

Mullite (3 Al2O3·2 SiO2) is prepared by a sol‐gel process and dried by supercritical extraction with CO2.
ChemInform Abstract: 6Li and 23Na NMR Spectroscopic Studies of Metalated Hydrazone Cryptates. Effects of Ion Triplet Formation on the Stereochemistry of Alkylation.
Authors: GALIANO‐ROTH A. S. , COLLUM D. B.
Published: May 2016

Effects of cryptand complexing agents (CRYP) on the structure and reactivity of metalated dimethylhydrazones (I) and (II) (from the respective hydrazone and Et‐Li, Na hexamethyldisilazide, and KH, resp.) are described.
ChemInform Abstract: Photoresponsive Crown Ethers. Part 20. Reversible Photocontrol of Association‐Dissociation Equilibria Between Azobis(benzo‐18‐crown‐6) (I) and Diammonium Cations (II).
Authors: SHINKAI S. , YOSHIDA T. , MANABE O. , FUCHITA Y.
Published: May 2016

The solution properties of complexes formed from trans azo compound (I) and its cis isomer (generated in solution by irradiation) and the diammonium cations of (II) are evaluated through measurements of average molecular weights, viscosity, NMR spectra, and electrical conductance.
ChemInform Abstract: Diastereoselective Construction of α‐Quaternary Carbon Centers in the Chiral‐Auxiliary‐Mediated Aza‐Claisen Rearrangement of Ketene N‐Allyl‐N,O‐acetals.
Authors: KURTH M. J. , BROWN E. G.
Published: May 2016

The oxazolinium salt (III), obtained from the oxazoline (I) and allyl tosylate (II), is converted to the oxazoline (IV) by a diastereoselective aza‐Claisen rearrangement after deprotonation with lithium alkoxide.
ChemInform Abstract: Synthesis of 3‐(5‐Methyl‐3‐isoxazolyl)‐2‐styrylquinazolin‐4(3H)‐ones and Their Antifungal Activity.
Authors: SAILAJA S. , RAO E. T. , RAJANARENDAR E. , KRISHNAMURTHY A.
Published: May 2016

Reaction of the Schiff bases (II) with the benzoxazinone (I) yields the quinazolines (III) mentioned in the title.
ChemInform Abstract: Chemistry of 1,4‐Oxazines. Part 16. Investigations on the Nucleophilic Substitution of 3,4‐Dihydro‐2H‐1,4‐benzoxazine‐2‐carboxylic Acid Derivatives Under Varied Conditions of the Polonovski Reaction.
Authors: BARTSCH H. , ERKER T. , SCHWARZ O.
Published: May 2016

Oxidation of the dihydro‐1,4‐benzoxazines (I) or (VII) by MCPBA (V) and subsequent treatment with Ac2O (VI), i.e. employing the Polonovski reaction, affords the expected dehydrogenated products (II) or (VIII) along with (III)/(IX) and (IVb)/(Xb).
ChemInform Abstract: Studies on as‐Triazine Derivatives. Part 11. Synthesis of 5‐Aryl‐1,2,4‐triazine Derivatives and Their Antifungal Activities.
Authors: KONNO S. , SAGI M. , KIMURA C. , KIKUCHI J. , YAMANAKA H. , FUJITA F. , YAMADA Y. , ADACHI M.
Published: May 2016

Oxidation of the acetophenones (I) and subsequent cyclization with the thiosemicarbazide derivatives (II) yield the 1,2,4‐triazines (III).
ChemInform Abstract: Sterically Hindered Silylamines. The Preparation of Some tert‐Butyldiphenylsilylamines.
Authors: BOWSER J. R. , NEVINGER L. R. , KRUEGER S. T.
Published: May 2016

tert‐Butyldiphenylsilyl chloride (I) reacts with the amines (II) or their lithio salts to form the silylamines (III).
ChemInform Abstract: Synthesis and Hydroformylation Reaction of Dinuclear Rhodium(I) Complexes with Mixed Bridging Ligands. X‐Ray Structure of (Rh2(μ‐pz)(μ‐StBu)(CO)2(P(OMe)3)2).
Authors: CLAVER C. , KALCK P. , RIDMY M. , THOREZ A. , ORO L. A. , PINILLOS M. T. , APREDA M. C. , CANO F. H. , FOCES‐FOCES C.
Published: May 2016

The mixed‐bridged Rh(I) complexes (VII) are synthesized according to the scheme.
ChemInform Abstract: Volatile Losses from Sphene Glass‐Ceramic and Borosilicate Glass Melts.
Authors: VANCE E. R. , HAYWARD P. J. , HAMON R. F.
Published: May 2016

Sphene (CaTiSiO5) glass‐ceramics are candidate materials for the immobilization of high‐level nuclear fuel recycle wastes.
ChemInform Abstract: The Role of Rate Determining Steps in the Decorporation of Toxic Metal Ions
Authors: JONES M. M. , WILSON D. J. , TOPPING R. J. , LAURIE S. H.
Published: May 2016

Review: (117 refs.
ChemInform Abstract: Raman Spectroscopy of Fluoride‐Containing Chloroaluminate Melts.
Authors: GILBERT B. , WILLIAMS S. D. , MAMANTOV G.
Published: May 2016

In acidic (AlCl3/MF (M: Na, Li) mol ratio > 1) melts at 200 °C, the new species Al2Cl6F‐ is detected.
ChemInform Abstract: Photoelectrochemical Characterization of Novel Rhodium Iodide Photoconductors.
Authors: PETERSON M. W. , PARKINSON B. A.
Published: May 2016

The new semiconductor RhIx (x= 4.1‐4.3) (I) is prepared by reaction of RhBr3 with I3‐ (4‐fold excess) in aqueous solution.
ChemInform Abstract: Corrosion in Smoke, Hydrocarbon and SO2 Polluted Atmospheres. Part 2. Mechanistic Implications for Iron from Surface Analytical and Allied Techniques.
Authors: SKERRY B. S. , WOOD J. C. , JOHNSON J. B. , WOOD G. C.
Published: May 2016

AES and XPS are used to study the early stage corrosion products formed on electro‐polished Fe specimens after exposure to smoke, ethane, ethylene, acetylene, and SO2 in a laboratory controlled atmosphere test chamber.
ChemInform Abstract: Solution and Solid‐State Structures of Di‐n‐butyltin 3‐Thiopropionate. X‐Ray Crystal Structure Determination of the Cyclic Hexamer.
Authors: LOCKHART T. P.
Published: May 2016

Molecular weight and 13C and 119Sn NMR data for the title compound (I) indicate that in solution the monomer and at least two oligomers are in equilibrium.
ChemInform Abstract: Inverse Electron Demand Diels‐Alder Reactions of 3,6‐Bis(methylthio)‐1,2,4,5‐tetrazine: 1,2‐Diazine Introduction and Direct Implementation of a Divergent 1,2,4,5‐Tetrazine → 1,2‐Diazine → Benzene (Indoline/Indole) Diels‐Alder Strategy.
Authors: BOGER D. L. , SAKYA S. M.
Published: May 2016

(4 + 2) Cycloaddition reaction of the tetrazine (I) with the dienophiles (II) or (IV) produces the 1,2‐diazines (III) and (V).
ChemInform Abstract: Regioselective Ring Opening in Anellated Benzocyclopropenes.
Authors: BILLUPS W. E. , RODIN W. A.
Published: May 2016

The fused benzocyclopropenes (IV) and (VII) are prepared by Diels‐Alder reaction of the dienes (I) or (V) with the bromochlorocyclopropene (II) and subsequent twofold dehydrohalogenation.
ChemInform Abstract: Homogeneous Deuteriation of Alkenes Using (RhX(PR3)3) (X: Halide, R: Aryl) Catalysts.
Authors: GUENGOER M. + , JARDINE F. H. , WHEATLEY J. D.
Published: May 2016

Acyclic 1‐alkenes CH2=CH‐(CH2)n‐Me (n = 3, 4, 5, 7) give the best yields of (2H2) products when (RhI(PPh3)3) is the catalyst.
ChemInform Abstract: Enamine Rearrangement of Pyridinium Salts. Part 7. A New Route for the Synthesis of 2‐Aminobiphenyls Involving Enamine Rearrangement of Pyridinium Salts.
Authors: FADDA A. A. , EL‐MORSY S. S.
Published: May 2016

Under the conditions indicated, the pyridinium iodides (I) yield the desired biphenyls (II) albeit in low yields.
ChemInform Abstract: Catalyzed Metalation Applied to 2‐Methoxypyridine.
Authors: TRECOURT F. , MALLET M. , MARSAIS F. , QUEGUINER G.
Published: May 2016

Lithiation of 2‐methoxypyridine (I) with methyllithium (II) is catalyzed by diisopropylamine to proceed regioselectively at position 3, yielding the lithio derivative (III).
ChemInform Abstract: An Unusual Substituent Effect on Elimination vs Fragmentation Reactions of the Dianions of 5‐Fluorouracil ‐ Alkene Photoadducts. Preparation of Cyclobutane‐Annelated Uracils.
Authors: SWENTON J. S. , JURCAK J. G.
Published: May 2016

Acetone sensitized cycloaddition reaction of 5‐fluorouracil (I) with the 2‐methoxy‐1‐alkenes (II) gives the photoadducts (III) and (IV).
ChemInform Abstract: Studies in Potential Filaricides. Part 21. Resolution and Antifilarial Activity of Optical Antipodes of 3‐Ethyl‐8‐methyl‐1,3,8‐triazabicyclo(4.4.0)decan‐2‐one.
Authors: SHARMA S. , AGRAWAL V. K. , ANAND N. , FATMA N. , CHATTERJEE R. K.
Published: May 2016

The unmethylated racemic precursor of the title compound centperazine (CP) can be resolved using di‐p‐toluoyl‐d‐tartaric acid.
ChemInform Abstract: Stereospecific Synthesis of 2‐Oxazinyl‐4‐oxoazetidinecarbamates Starting from a 1,2‐Diazepine. A New Type of Intramolecular Transbenzoylation.
Authors: FRITZ H. , HENLIN J.‐M. , RIESEN A. , TSCHAMBER T. , ZEHNDER M. , STREITH J.
Published: May 2016

Acylnitroso dienophiles, generated in situ from the hydroxamic acids (II), undergo non‐regiospecific but stereospecific (4 + 2) cycloaddition to the convex side of the boat‐shaped diazepines (I) to afford mixtures of the expected normal adducts (III) and inverse adducts (IV).
ChemInform Abstract: Cyclic Sulfur‐Nitrogen Compounds and Phosphorus Reagents. Part 2. Reactions of Tetrasulfur Tetranitride with (Morpholino)diphenylphosphine. First Observation of the Ring Contraction of 1,5‐((OC4H8N)Ph2PN)2S4N4 to (OC4H8N)Ph2PNS3N3 in Solution.
Authors: THOMAS C. J. , RAO M. N. S.
Published: May 2016

Both the title compounds (IV) and (III) are obtained as only products by reaction of (morpholino)diphenylphosphine (II) with S4N4 (I) depending on the conditions as shown in the scheme.
ChemInform Abstract: Pentamethylcyclopentadienyl Molybdenum and Tungsten Carbene Complexes. X‐Ray Crystal Structures of Cyclic cis‐ and trans‐(MoI(CO)2(=C(CH2)3O)(η‐C5Me5)).
Authors: BAILEY N. A. , DUNN D. A. , FOXCROFT C. N. , HARRISON G. R. , WINTER M. J. , WOODWARD S.
Published: May 2016

The 3‐bromopropyl Mo and W complexes (III) obtained as shown react with KCN (IV) or Li salts (V) to give the trans‐ and cis‐carbene complexes (VI) and (VII), and (VIII) and (IX) according to the scheme.
ChemInform Abstract: Synthesis and Reactivity of Mixed‐Ligand Isocyanide‐Diphosphine Iron(0) Complexes. X‐Ray Crystal Structure of Cyclic cis‐(Fe(dppe)(CNPh)2(N(Ph)=C(Me)‐C=NPh))ClO4.
Authors: RIERA V. , RUIZ J. , JEANNIN Y. , PHILOCHE‐LEVISALLES M.
Published: May 2016

Reduction of the mer‐complex (I) gives the very air‐sensitive complex (II) in toluene solution.
ChemInform Abstract: Synthesis and Structural Characterization of Some Cyclopentadienyliron‐Bismuth Complexes.
Authors: CLEGG W. , COMPTON N. A. , ERRINGTON R. J. , NORMAN N. C.
Published: May 2016

Treatment of BiCl3 (I) with two equiv. of the cyclopentadienyldicarbonylferrates (II) yields the cyclotrimers (III) with planar Bi3Cl3 six‐membered ring.
ChemInform Abstract: Regioreversed Nucleophilic Substitution of 2‐(Allyloxy)benzothiazole by Allylic Grignard Reagents. A Regioselective Synthesis of 1,5‐Dienes.
Authors: CALO V. , LOPEZ L. , PESCE G.
Published: May 2016

2‐(Allyloxy)benzothiazoles such as (I) react with allylic organomagnesium compounds such as (II) in the presence of CuBr to give the head‐to‐tail 1,5‐diene (III).
ChemInform Abstract: The Abnormal Issue of the Koenigs‐Knorr Reaction with Perfluoroalkylated Alcohols.
Authors: GREINER J. , MILIUS A. , RIESS J. G.
Published: May 2016

Koenigs‐Knorr reaction of the protected bromoglucose (I) with the fluorinated carbinol (II) gives the orthoester (III) as the main product which is cleaved to form a mixture of the glucosides (IVa) and (V).
ChemInform Abstract: Crystal Structure of Palladate Y2BaPdO5 with Square Planar Coordinated Pd2+.
Authors: LALIGANT Y. , FEREY G. , HERVIEU M. , RAVEAU B.
Published: May 2016

Single crystals of the new semiconducting title compound are prepared by reaction of BaCO3, BaO2, CuO, Y2O3, and Pd (1050 °C, 24 h).
ChemInform Abstract: Electrochemical Preparation of Electrodes Modified with Non‐Stoichiometric Mixed‐Valent Tungsten(VI, V) Oxides.
Authors: KULESZA P. J. , FAULKNER L. R.
Published: May 2016

Non‐stoichiometric mixed‐valent W(VI, V) oxide films are prepared on glassy carbon, graphite, and SnO2‐coated glass by cycling the potential between ‐0.4 and 0.8 V in a colloidal suspension of Na2WO4·2 H2O in 2 M H2SO4.
ChemInform Abstract: Surface‐Modified Glassy Carbon Electrodes Obtained by Electrochemical Treatment. Its Effect on Ru(bpy)2+ 3 Adsorption and the Electron‐Transfer Rates of the Fe2+/Fe3+ Couple.
Authors: BARBERO C. , SILBER J. J. , SERENO L.
Published: May 2016

A modified glassy carbon (MGC) electrode, obtained by cycling the electrode between ‐500 and +1860 mV (vs.
ChemInform Abstract: The Effect of γ‐Irradiation on the Thermal Decomposition of Lead Nitrate
Authors: NAIR S. M. K. , MALAYIL K. K.
Published: May 2016

is investigated using the gas evolution method.
ChemInform Abstract: Base‐Promoted Elimination of Hydrogen Fluoride from Alkyl Fluorides: Reactivity and Stereochemistry.
Authors: MATSUBARA S. , MATSUDA H. , HAMATANI T. , SCHLOSSER M.
Published: May 2016

The dehalogenation of the linear (Ia) and cyclic (Ib) fluorides leads to cis‐(II) and trans‐(III) alkenes in an approximate ratio of 1:3 when alcoholates are used as elimination promoting bases.
ChemInform Abstract: Organoboranes for Synthesis. Part 10. The Base‐Induced Reaction of Bromine with Organoboranes. A Convenient Procedure for the Conversion of Alkenes into Alkyl Bromides via Hydroboration.
Authors: BROWN H. C. , LANE C. F.
Published: May 2016

The reaction of trialkylboranes with bromine is greatly accelerated by a base.
ChemInform Abstract: Selective Reactions of Organomagnesium Compounds with Lactols and Lactones. Synthesis of Primary‐Secondary Diols.
Authors: CANONNE P. , PLAMONDON J. , AKSSIRA M.
Published: May 2016

Monoalkylated lactones, e.g. (IV), (VIII) and (XI), are obtained from the alkylation of the corresponding lactols with organomagnesium compounds.
ChemInform Abstract: Synthesis of β‐Hydroxy Esters by Reformatsky Reaction Using Indium Metal.
Authors: ARAKI S. , ITO H. , BUTSUGAN Y.
Published: May 2016

Ethyl iodoacetate (II) is coupled with the aldehydes or ketones (IV) in the presence of indium (I) to form the β‐hydroxy esters (V) via the intermediate (III).
ChemInform Abstract: Aromatic Carboxylic Acids as Latent Aromatic Ketones. New Regioselective Synthesis of Aromatic Ketones.
Authors: CALUWE P. , PEPPER T.
Published: May 2016

Lithium/ammonia reduction of 1,8‐phenanthrenedicarboxylic acid (I) yields the tetrahydro derivative (II) which is hydrogenated with H2/ Pd‐C to give the octahydro derivative (III).
ChemInform Abstract: Synthesis of Novel Types of 1,4‐Oxazino‐ and 1,4‐Pyrazinophenazine Derivatives.
Authors: REDDY R. B. , MOULI G. Y. P. C. , REDDY Y. D.
Published: May 2016

The title compounds (III) and (V) are prepared by cyclocondensation of the bromoacetophenones (II) with 2‐amino‐3‐hydroxyphenazine (I) or the 2,3‐diamino analogue (IV).
ChemInform Abstract: Synthesis of Cyclic Ethers via 5‐Exo Iodonium Assisted Epoxide Ring Expansion.
Authors: ALVAREZ E. , MANTA E. , MARTIN J. D. , RODRIGUEZ M. L. , RUIZ‐PEREZ C.
Published: May 2016

The bromo epoxide (II), prepared from the dienol (I), is cleaved and debrominated with Zn/NH4Cl to form the unsaturated hydroxy derivative (IIIa).
ChemInform Abstract: New Preparation of Aminoboronic Acids.
Authors: DICKO A. , MONTURY M. , BABOULENE M.
Published: May 2016

The allylic bis(silyl)amines (I), prepared from the corresponding allyl halides and bis(trimethylsilyl)amine, are subjected to hydroboration, followed by hydrolysis and ion exchange, yielding the aminoboronic acids (III) and (IVc).
ChemInform Abstract: Cycloaddition Reactions of Tetrafluorodisilacyclobutenes with Conjugated Dienes Mediated by Metal Carbonyls. Part 5. 1,4‐Addition versus 1,2‐Hydrogen Migration.
Authors: JZANG T. , LIU C.
Published: May 2016

The known metallacycle (III) derived from the disilabutene (I) reacts with various dienes such as (IV) to give the η2‐diene intermediates (V), which exist as 1:1 isomeric mixtures; the structural difference of the two isomers lies in the position of the tert. butyl group relative to the η2‐diene moiety.
ChemInform Abstract: Carotenoids and Related Compounds. Part 42. Structure of Isomytiloxanthin.
Authors: KHARE A. , MOSS G. P. , WEEDON B. C. L.
Published: May 2016

Isomytiloxanthin, a pigment from Mytilus edulis, is shown to have the relative configuration of formula (I).
ChemInform Abstract: Stereochemistry of Hydroboronation and Osmylation of 3α,5‐Cycloandrost‐6‐en‐17‐one.
Authors: HANSON J. R. , HITCHCOCK P. B. , REESE P. B. , TRUNEH A.
Published: May 2016

The stereochemistry of osmylation of a steroidal 6‐ene is shown to be modified by the presence of the 3α,5‐cyclopropane ring.
ChemInform Abstract: Solid Solubility of Rare Earth Metals in Aluminum.
Authors: CHELKOWSKI A. , TALIK E. , SZADE J. , HEIMANN J. , WINIARSKA A. , WINIARSKI A.
Published: May 2016

Mono‐ and polycrystalline samples of Al:R solid solutions (R: Y, Gd, Tb, Dy, Er, Ho) with concentrations of 50‐12000 ppm of R are prepared by various crucibleless methods (arc and levitation melting and Czochralski method from the levitation melt).
ChemInform Abstract: Effects of Electrolytes on the Photoelectrochemical Reduction of Carbon Dioxide at Illuminated p‐Type Cadmium Telluride and p‐Type Indium Phosphide Electrodes in Aqueous Solutions.
Authors: YONEYAMA H. , SUGIMURA K. , KUWABATA S.
Published: May 2016

CO2 reduction is studied in alkali metal carbonates, sulfates, phosphates, and perchlorates, as well as in tetraalkylammonium salts.
ChemInform Abstract: Reductive Cleavage of Symmetrical Disulfides with Hydrazines.
Authors: MAITI S. N. , SPEVAK P. , SINGH M. P. , MICETICH R. G. , REDDY A. V. N.
Published: May 2016

The symmetrical dihetaryl disulfides (I) are reductively cleaved with hydrazine (IIa) or the methylated hydrazines (IIb) and (IIc) to produce the thiols (III).
ChemInform Abstract: Thermal Self‐Condensation of Cyclohexanone.
Authors: KAIM A. , KAMINSKI J. , KOLODZIEJSKI W.
Published: May 2016

The title reaction affords a mixture of the products (II) and (III) with predominance of the latter (1H, 13C NMR, UV data; kinetics).
ChemInform Abstract: Chemistry of Boron. Part 191. Addition and Insertion Reactions of Amino‐Imino‐Boranes with the Trihalides of Main‐Group V Elements.
Authors: BRANDL A. , NOETH H. +
Published: May 2016

The tetramethylpiperidino‐imino‐boranes (I) react with PCl3, PBr3, AsCl3, AsBr3, AsF3, SbCl3, SbBr3, and SbF3 as demonstrated for the examples (II) to yield novel N‐boryl‐substituted amino element dihalides of the type (III).
ChemInform Abstract: Synthesis and Structure of (ClV(OSiMe3)N2PPh2)2, the First Cyclodimetallaphosphazene ‐ an Eight‐Membered Planar Unsaturated Heterocycle.
Authors: WITT M. , ROESKY H. W. , NOLTEMEYER M. , SHELDRICK G. M.
Published: May 2016

The title compound (III) is obtained according to the scheme and characterized by X‐ray structure analysis (space group Pbca, Z=4) and spectral (IR, NMR) data.
ChemInform Abstract: Synthesis and X‐Ray Crystal Structure of (54)(1,2,3,4)Ferrocenophane.
Authors: HISATOME M. , YAMASHITA R. , WATANABE J. , YAMAKAWA K. , IITAKA Y.
Published: May 2016

The title compound (VIII) bridged with four pentamethylene chains is synthesized starting with (53)(1,2,4)ferrocenophane (I) by stepwise construction of a pentamethylene bridge according to the scheme.
ChemInform Abstract: Synthesis of Peptides Containing (S)‐α‐Methylserine.
Authors: ALTMANN E. , ALTMANN K.‐H. , MUTTER M.
Published: May 2016

The title peptides (III) are synthesized by coupling of the Mse ester (I) with respective components (II).
ChemInform Abstract: Synthesis of Oligoribonucleotides by Use of 4,4′,4′′‐Tris(acyloxy)trityl Groups for Protection of the 6‐Amino Group of Adenosine.
Authors: SEKINE M. , IWASE R. , MASUDA N. , HATA T.
Published: May 2016

The title groups, which are introduced using the reagents (I) or (II), resp., are examined as protecting groups for the amino group of adenosine in oligoribonucleotide synthesis.
ChemInform Abstract: Vaporization Studies of Mixed Lanthanoid Trifluorides.
Authors: GIBSON J. K. , HAIRE R. G.
Published: May 2016

The vaporization thermodynamics at 1500 °C of each component of the mixed systems HoF3 + TmF3, TbF3 + HoF3 + LuF3, LaF3 + GdF3 + LuF3, and LaF3 + PrF3 + HoF3 + LuF3 are simultaneously studied by using a Knudsen effusion‐mass spectrometry technique.
ChemInform Abstract: Influence of d‐State Density and Chemistry of Transition Metal Cluster Selenides on Electrocatalysis.
Authors: ALONSO VANTE N. , SCHUBERT B. , TRIBUTSCH H. , PERRIN A.
Published: May 2016

The catalytic properties with respect to the electrochemical reduction of protons and oxygen in acidic medium of the cluster compounds Mo6Se8, Mo2Re4Se8, and Mo4Ru2Se8 and of Mo metal are studied.
ChemInform Abstract: Ethane Hydrogenolysis and Hydrogen Chemisorption Over Niobia‐Promoted Rhodium Catalysts: A New Phase by a Strong Rhodium‐Niobia Interaction.
Authors: HU Z. , NAKAMURA H. , KUNIMORI K. , ASANO H. , UCHIJIMA T.
Published: May 2016

Nb2O5‐promoted Rh/SiO2 catalysts exhibit strong metal‐support interaction.
ChemInform Abstract: Ammonia Decomposition Over 430‐SS Etched Metal Catalysts.
Authors: WILLEY R. J. , FOX M. F. II
Published: May 2016

It is demonstrated that activated 430‐SS wire meshes are quite active for ammonia decomposition.
ChemInform Abstract: Electroreductive Cyclization, Ketones, and Aldehydes Tethered to α,β‐Unsaturated Esters (Nitriles). Fundamental Investigations.
Authors: LITTLE R. D. , FOX D. P. , VAN HIJFTE L. , DANNECKER R. , SOWELL G. , WOLIN R. L. , MOENS L. , BAIZER M. M.
Published: May 2016

The intramolecular electrochemically initiated cyclization of a variety of the α,β‐unsaturated esters (I) and (III) or the nitrile (V) bearing acyl substituents leads to the formation of the mono‐ or bicyclic products (II), (IV), and (VI) respectively.
ChemInform Abstract: Stereochemical Study of Perhydrocyclohepta(b)furans.
Authors: DOLMAZON R. , ALBRAND M. , HENRY R.
Published: May 2016

Ring‐closure reaction of the acetate (I) followed by hydrogenation yields the alcohols (II) which are oxidized to give the cis ketone (IIIa) as major product.
ChemInform Abstract: 2‐Phenylsulfinylmethyl‐1,3‐butadiene in the Thermal Diels‐Alder Reaction.
Authors: VESELOVSKII V. V. , MAKAROVA Z. G. , LUTSENKO A. I. , SHPIRO N. A. , ZHULIN V. M. , MOISEENKOV A. M.
Published: May 2016

The phenylsulfinylbutadiene (Ia) is coupled with the dienophiles (II), (IV), or (IX) to give the Diels‐Alder products (IIIa), (V), or (X) and (XI).
ChemInform Abstract: Stereoselective Alkylation of Chiral α‐Nitro Keto Imine Dianions. Observations on the Role of Amide Bases.
Authors: DENMARK S. E. , ARES J. J.
Published: May 2016

The optimal conditions for a diastereoselective alkylation of chiral α‐nitro keto imines such as (I) are established to provide the products (III) which subsequently can be transformed in versatile 1‐nitrocyclohexenes as it is exemplified for (IIId) (→ (IV)).
ChemInform Abstract: Synthesis of 4‐Substituted 3‐Alkoxy‐3‐cyclobutene‐1,2‐diones.
Authors: REED M. W. , POLLART D. J. , PERRI S. T. , FOLAND L. D. , MOORE H. W.
Published: May 2016

Coupling of the dimethyl squarates (I) with the organolithium agents (II) gives the hydroxycyclobutenones (III).
ChemInform Abstract: An Improved Method for the Synthesis of Substituted Cyclobutenediones.
Authors: LIEBESKIND L. S. , FENGL R. W. , WIRTZ K. R. , SHAWE T. T.
Published: May 2016

Treatment of diisopropyl squarate (I) with the organolithium reagents (II) yields the hydroxycyclobutenones (III) which are hydrolyzed to form the semisquarates (IV).
ChemInform Abstract: The Addition of Organolithium Reagents to Quinone Silyl Methyl Monoketals. A Useful Expedient in the Synthesis of p‐Quinols Having Acid‐Sensitive Groups.
Authors: STERN A. J. , SWENTON J. S.
Published: May 2016

Electrochemical oxidation of the hydroquinone derivative (I) in methanolic KOH yields the quinone monoketal (II).
ChemInform Abstract: Chiral Building Blocks from Amino Acids via an Electrochemical Key Step: Synthesis of (R)‐2‐tert‐Butyl‐3‐methoxycarbonyl‐1,3‐oxazolines from (S)‐Serine and (S)‐Threonine.
Authors: SEEBACH D. , STUCKY G. , RENAUD P.
Published: May 2016

The hydroxyaminocarboxylic acids (I) are converted to the oxazolidinecarboxylic acids (VIII) which form the acetoxyoxazolidines (X) during an electrochemical reaction.
ChemInform Abstract: Careful Introduction of the Nitrile Group into a Semicyclic Enamine Structure.
Authors: PRAGST F. , LIEBSCHER J. , ROLOFF B. , BOCHE E.
Published: May 2016

Reaction of the piperidinyl‐dihydropyridines (I) with the acylisothiocyanate (II), formed in situ from benzoylchloride and KSCN, with Na‐alcoholates (or NaOH) gives the cyanomethylene compounds (IV) instead of the expected cyclization products.
ChemInform Abstract: Organic Disulfides and Related Substances. Part 49. Preparation of Cyclic Thiosulfinates and Reactions with Thiols.
Authors: SINGH P. K. , FIELD L. , SWEETMAN B. J.
Published: May 2016

Oxidation of 1,2‐dithianes such as (I) with H2O2 in the presence of tungstic acid as the catalyst produces the cyclic thiosulfinates (II) and (III).
ChemInform Abstract: Reaction of (NiCp(PPh3)Cl) with E(SiMe3)2; the Structures of (Ni4Se2Cp4) and (Ni4E2Cp4(PPh3)2) (E: Se, Te).
Authors: FENSKE D. , HOLLNAGEL A. , MERZWEILER K.
Published: May 2016

The 2:1 molar reaction of the Ni complex (I) with the disilyl selenide or telluride (II) leads to the Ni4 clusters (III) with Ni‐Ni bonds and the trinuclear selen(tellur)ide‐bridged compounds (IV).
ChemInform Abstract: Epimerization and Oxidation of the Bridgehead Hydrogen of Some Indoloquinolizideines.
Authors: WENKERT E. , MOELLER P. D. R. , SHI Y.‐J.
Published: May 2016

Treatment of the indoloquinolizideine (II) with TFA in a nitrogen atmosphere causes epimerization of the bridgehead hydrogen, yielding the epimer (I).
ChemInform Abstract: Synthesis of 2‐Deoxy‐2,2‐difluoro‐D‐ribose and 2‐Deoxy‐2,2‐difluoro‐D‐ribofuranosyl Nucleosides.
Authors: HERTEL L. W. , KROIN J. S. , MISNER J. W. , TUSTIN J. M.
Published: May 2016

Reformatskii reaction of the (R)‐formyldioxolane (I) with the bromodifluoroacetate (II) yields the diastereomeric β‐hydroxy‐α,α‐difluorocarboxylates (III).
ChemInform Abstract: Total Synthesis of Zincophorin.
Authors: DANISHEFSKY S. J. , SELNICK H. G. , ZELLE R. E. , DENINNO M. P.
Published: May 2016

The total synthesis of the title compound (XIV), a zinc‐binding antibiotic, is described starting from the aldehyde (I).
ChemInform Abstract: Characterization of Interstitial Hydrogen within Metal Clusters in Zr6Cl12H and ZrClOxHy by Solid‐State NMR.
Authors: CHU P. J. , ZIEBARTH R. P. , CORBETT J. D. , GERSTEIN B. C.
Published: May 2016

1H NMR investigations on samples of the cluster compound Zr6Cl12H containing a small amount of the layered compound ZrClOxHy (x + y ≤ 1) reveal the presence of two completely different H species.
ChemInform Abstract: Spin Echo NMR of Cobalt Zeolite Catalysts: Control of Particle Size and Structure.
Authors: ZHANG Z. , SUIB S. L. , ZHANG Y. D. , HINES W. A. , BUDNICK J. I.
Published: May 2016

Experiments carried out at low radio frequency power on 59Co ferromagnetic particles with zero magnetic field clearly show the spin echo NMR (SENMR) technique to be especially useful in the study of structures and sizes of metal particles generated in zeolite catalysts.
ChemInform Abstract: Hydrolytic Trimer of Chromium(III). Synthesis Through Chromite Cleavage and Use in the Preparation of the “Active” Trimer Hydroxide.
Authors: SPICCIA L. , MARTY W. , GIOVANOLI R.
Published: May 2016

Solutions of the hydrolytic trimer of Cr(III) (I) can be obtained in good yields (ca.
ChemInform Abstract: Barium Binding to γ‐Carboxyglutamate and β‐Carboxyaspartate Residues: Structures of Barium Complexes of Benzylmalonate, Dimethylmalonate, and Ethylmalonate Ions.
Authors: YOKOMORI Y. , FLAHERTY K. A. , HODGSON D. J.
Published: May 2016

The complexes (I)‐(IV), obtained from Ba hydroxide and the 10‐fold excess of the appropriate substituted malonic acid, are investigated by X‐ray diffraction: (I) (Cmc21, Z=4), (II) (P21/c, Z=4), (III) ( P21/n, Z=4), (IV) (Pnma, Z=4).
ChemInform Abstract: Remote Reformatsky Reaction: Reaction of β‐, γ‐, and δ‐Zinc Esters with Aldehydes.
Authors: TAMARU Y. , NAKAMURA T. , SAKAGUCHI M. , OCHIAI H. , YOSHIDA Z.
Published: May 2016

Treatment of the organo‐zinc iodides (III), generated from the iodides (I), with trimethylsilyl chloride and the aldehydes (IV) gives the alcohols (V) after hydrolysis.
ChemInform Abstract: Cycloadditions of 1,3,4‐Oxadiazin‐6‐ones (4,5‐Diaza‐α‐pyrones). Part 8. Conjugated and Non‐conjugated Cyclopentenones by a Reaction Cascade from Methyl 6‐Oxo‐5‐phenyl‐1,3,4‐oxadiazine‐2‐carboxylate and 1,3‐Butadienes.
Authors: HEGMANN J. , CHRISTL M. , PETERS K. , PETERS E.‐M. , VON SCHNERING H. G.
Published: May 2016

Reaction of the title heterocycle (I) with 1,3‐butadienes such as (II) or (V) affords conjugated and/or non‐conjugated cyclopentenones such as (III), (IV), (VII) or (VIII) in a novel one‐pot procedure.
ChemInform Abstract: Catalytic Asymmetric Synthesis of Highly Functionalized Compounds with Six Contiguous Stereocentres.
Authors: AITKEN R. A. , GOPAL J. , HIRST J. A.
Published: May 2016

Treatment of the epoxy anhydride (I) or the N‐phenylaziridino analogue (V) with the alcohols (II) in the presence of quinine as the chiral base results in cleavage of the heterocyclic rings, forming the optically active hydroxy lactones (III) and (IV) or the phenylamino lactones (VI) and (VII).
ChemInform Abstract: Studies on the Effects of Substituents on Rate Enhancements in Intramolecular Diels‐Alder Reactions: Reasons for the gem‐Dimethyl Effect.
Authors: JUNG M. E. , GERVAY J.
Published: May 2016

The furylalkyl methyl fumarates (III), obtained from the furyl carbinols (I) and the acid chloride (II), form the intramolecular cycloadducts (IV).
ChemInform Abstract: A New, Efficient Synthesis of 5‐Undecyl‐6‐hydroxy‐4,7‐dioxobenzothiazole (UHDBT), a Potent Electron Transfer Inhibitor.
Authors: SELWOOD D. L. , JANDU K. S.
Published: May 2016

Grignard reaction of the dimethyl squarate (I) with undecylmagnesium bromide (II), followed by coupling with the lithiothiazole (IV), gives the hydroxycyclobutenone (V) which is rearranged and oxidized, producing the methoxyundecylbenzothiazoledione (VI).