bluuebunny/crossref_metadata_2025_split huggingface dataset:
ChemInform Abstract: Asymmetric Aldol Reactions Using (4R‐trans)‐2‐(1‐Methylethenyl)‐1,3,2‐ dioxaborolane‐4,5‐dicarboxylic Acid Bisethyl Ester, a Chiral Precursor of the Acetone Enolate.
Authors: BOLDRINI G. P. , LODI L. , TAGLIAVINI E. , TROMBINI C. , UMANI‐RONCHI A. 
Published: May 2016

AbstractCoupling of the Grignard compound (I) with trimethyl borate (II), followed by hydrolysis and cyclization with (+)‐diethyl tartrate (IV), gives the dioxaborolane (V).
ChemInform Abstract: Ketene‐S,N‐acetals as Synthons for Heterocycles. New Synthesis of Pyrimidinones.
Authors: GELBIN M. , MARTIN D. 
Published: May 2016

AbstractThe reactions of the ketene‐N,S‐acetals (I) and (IV) with the isocyanates (II) and the cyanates (XVIII) are investigated, giving the products shown in the scheme.
ChemInform Abstract: Perfluoroalkyl‐1,2,3‐triazines: Novel Nucleophilic Attack on Ring Nitrogen.
Authors: CHAMBERS R. D. , TAMURA M. , HOWARD J. A. K. , JOHNSON O. 
Published: May 2016

AbstractTreatment of trichloro‐1,2,3‐triazine (Ia) with hexafluoropropene (II) and cesium fluoride at a low temperature yields the di‐ and triperfluoroisopropyl‐1,2,3‐triazines (III) and (IV) as the main products.
ChemInform Abstract: Polyaza Macrobicyclic Cryptands: Synthesis, Crystal Structures of a Cyclophane Type Macrobicyclic Cryptand and of Its Dinuclear Copper(I) Cryptate, and Anion Binding Features.
Authors: JAZWINSKI J. , LEHN J.‐M. , LILIENBAUM D. 
Published: May 2016

AbstractCyclocondensation of tren (I) with the dialdehydes (II) produces the ditopic macrobicyclic polyamines (III).
ChemInform Abstract: Silafunctional Compounds in Organic Synthesis. Part 37. Metalated (Allyl)Aminosilanes: Regioselective Coupling with Alkyl Halides to E‐1‐Alkenylsilanes with a Functional Group on Silicon.
Authors: TAMAO K. , NAKAJO E. , ITO Y. 
Published: May 2016

AbstractThe allylic silanes (I) are metallated under various conditions and then coupled with the alkyl halides (II) to produce the γ‐adducts (III) and the α‐adducts (IV) as outlined in the formula scheme.
ChemInform Abstract: Unusual Behaviour of Bis(tris(N,N‐dimethylamido)imidophosphato)phosphite in the Alkylation with Alkyl Iodides.
Authors: BESPAL'KO G. K. , KOIDAN G. N. , MARCHENKO A. P. , PINCHUK A. M. 
Published: May 2016

AbstractThe title compound (II), prepared by hydrolysis of the triamidophosphite (I), is converted directly into the phosphonium salts (IV) on treatment with the alkyl iodides (III).
ChemInform Abstract: Chromium(III) Complexes with 1,5,9‐Triazanonane (3,3‐tri) ‐ CrX3(3,3‐tri)n+ and CrCl(diamine)(3,3‐tri)2+.
Authors: HOUSE D. A. , ROBINSON W. T. 
Published: May 2016

AbstractThe reaction of hydrated CrCl3 with (I) gives (III) whose configuration is established by isomorphism with the corresponding Co(III) complex.
ChemInform Abstract: Synthesis of Diphosphorylated and Diphosphonylated Lipid A Monosaccharide Analogues via Phosphite Intermediates.
Authors: WESTERDUIN P. , VEENEMAN G. H. , VAN BOOM J. H. 
Published: May 2016

AbstractIn view of the immuno‐biological properties of lipid A the title compounds (VIII) are synthesized starting from the pyranoside (I).
ChemInform Abstract: Synthetic Microbial Chemistry. Part 16. Synthesis of Patulolides A, B, and C, New Macrolides Isolated from Penicillium urticae.
Authors: MORI K. , SAKAI T. 
Published: May 2016

AbstractEnantioselective syntheses of the title compounds (XII), (XI) and (IX), resp., are reported starting from ethyl (R)‐3‐hydroxybutanoate (I).
ChemInform Abstract: Aluminum Clusters: Ionization Thresholds and Reactivity Toward Deuterium, Water, Oxygen, Methanol, Methane, and Carbon Monoxide.
Authors: COX D. M. , TREVOR D. J. , WHETTEN R. L. , KALDOR A. 
Published: May 2016

AbstractUsing the pulsed cluster beam flow reactor technique, the reactivity of gas phase Aln clusters (n = 1‐30) toward several molecules has been investigated.
ChemInform Abstract: Structure and Vibrational Spectrum of the Potassium Undecatungstate K6H4W11O38·11 H2O.
Authors: LEHMANN T. , FUCHS J. 
Published: May 2016

AbstractThe title compound (prepared by acidification of a sodium monotungstate solution and addition of KCl) crystallizes in the triclinic system, space group P1 (single crystal XRD data are reported).
ChemInform Abstract: Study of Hopeite Dehydration: Structural Conformation of the Dihydrate Zn3(PO4)2·2 H2O.
Authors: SAHAKIAN E. , ARNAUD Y. 
Published: May 2016

AbstractPure hopeite (Zn3(PO4)2·4 H2O) is precipitated from a ZnO/H3PO4/HNO3 solution and its dehydration is studied by DTA, TG, DSC, and XRD.
ChemInform Abstract: New ThCr2Si2‐Type Representatives, LnCr2Si2 (Ln: Sm, Tb‐Lu).
Authors: DOMMANN A. , HULLIGER F. , BAERLOCHER CH. 
Published: May 2016

AbstractThe title compounds, prepared by arc‐melting of either the elements or binary compounds, all crystallize in the ThCr2Si2 structure, space group I4/mmm.
ChemInform Abstract: The Influence of the Preparation Technique on the Properties of the High Tc Superconductor YBa2Cu3O7‐y.
Authors: KEMMLER‐SACK S. , KIEMEL R. , SCHAEFER W. + , WISCHERT W. , RADAK A. , ELSCHNER B. 
Published: May 2016

AbstractSamples of YBa2Cu3O7‐y are obtained by reaction of Y2O3, Ba(NO3)2, and CuO at 870‐1070 K followed by air quenching.
ChemInform Abstract: NO + CO Reaction on Rh(111): Steady‐State Rates and Adsorbate Coverages.
Authors: SCHWARTZ S. B. , FISHER G. B. , SCHMIDT L. D. 
Published: May 2016

AbstractKinetics and coverages of the title reaction are found to be accurately described by a modified Langmuir‐Hinshelwood model which assumes that the major reaction steps are NO decomposition followed by CO scavenging of the resulting adsorbed oxygen.
ChemInform Abstract: Impedance Measurements for Some Nasicon Analogues.
Authors: BYRAPPA K. , GOPALAKRISHNA G. S. , KULKARNI A. B. , DESAI N. B. 
Published: May 2016

AbstractNew phosphates Na2(Ln,M(III))M(IV)P3O12 (Ln: La, Ce, Nd; M(III): Co, Al, Cr; M(IV): Ti, Zr) and NaM2ZrP3O12 (M: Ni, Cu) are synthesized by the hydrothermal method using the corresponding oxides and 85% H3PO4 as starting materials and 1.5 M NaOH as mineralizer (autoclave, 150 atm, 250 °C).
ChemInform Abstract: Crystal Structure of A3(M,Nb)8O21‐Type Compounds (A: Tl, Ba; M: Fe, Ni).
Authors: BRANDT R. , MUELLER‐BUSCHBAUM HK. + 
Published: May 2016

AbstractSingle crystals of Ba3Fe2Nb6O21 and Ba3Ni1.33Nb6.66O21 are prepared by annealing pellets of BaCO3, Fe/Ni‐oxalate, and Nb2O5 (Pt‐crucible, 1350 °C, 48 h in air).
ChemInform Abstract: Room Temperature Photoassisted Formation of Hydrogen‐Molybdenum Bronzes with an Alcohol as a Hydrogen Source.
Authors: PICHAT P. , MOZZANEGA M.‐N. , HOANG‐VAN C. 
Published: May 2016

AbstractH0.34MoO3 is prepared at room temp. by UV illumination of a MoO3 suspension in MeOH (or 2‐propanol).
ChemInform Abstract: Silicon‐Directed Nazarov Cyclizations. Part 5. Substituent and Heteroatom Effects on the Reaction.
Authors: DENMARK S. E. , HABERMAS K. L. , HITE G. A. 
Published: May 2016

AbstractA series of divinyl ketones such as (IV) is synthesized by one of the methods exemplified in the scheme by the reactions a) (I) + (II) → (IIIa) → (IVa), b) (V) + (VI) → (IIIb) → (IVb), and c) (VII) + (VIII) → (IIIe) → (IVe).
ChemInform Abstract: Carbonyl Ylide Formation from the Rhodium(II) Acetate: Catalyzed Reaction of an α‐Diazo Ketone.
Authors: PADWA A. , STULL P. D. 
Published: May 2016

AbstractDecomposition of the diazo ketone (I) in methanol (II) is performed under various conditions: Rh2(OAc)4 catalyzed reaction yields the methoxycarbonylisobenzofuranone (III).
ChemInform Abstract: A Convenient Preparation of 4‐ and 5‐Substituted Cyclopentenones: A Short Synthesis of Methylenomycin B.
Authors: RIZZO C. J. , DUNLAP N. K. , SMITH A. B. III 
Published: May 2016

AbstractThe chlorocyclopentenones (III) are prepared by reaction of the acryloyl chlorides (I) with acetylene (II).
ChemInform Abstract: A Synthetically Useful Conversion of Benzoic Acid Derivatives to 4‐Alkylphenols and 4‐Alkyl‐3‐carbalkoxyphenols.
Authors: SCHULTZ A. G. , HARRINGTON R. E. , MACIELAG M. , MEHTA P. G. , TAVERAS A. G. JUN. 
Published: May 2016

AbstractTreatment of the cyclohexadienonecarboxylates (I) with a base results in decarboxylation and aromatization, giving the phenols (II).
ChemInform Abstract: Reactions of Some N‐Acyl‐1‐alkylamines with Polyphosphoric Ester PPE: Nuclear Magnetic Resonance and Stereochemistry of Reaction Products.
Authors: ALESSO E. N. , TOMBARI D. G. , MOLTRASIO IGLESIAS G. Y. , AGUIRRE J. M. 
Published: May 2016

AbstractReaction of the acylamines (I) or (III) with PPE leads ‐ depending on the degree of aryl ring substitution ‐ either to the phenylindanes (II) or to the stilbene (IV).
ChemInform Abstract: Synthesis of Dialkyl (2,3‐Epoxy‐4‐oxoalkyl)phosphonates from (1‐Formylalkyl)phosphonates.
Authors: OEHLER E. + , KANG H.‐S. , ZBIRAL E. 
Published: May 2016

AbstractThe hitherto unknown epoxides (VI) are synthesized starting with the reaction between the aldehydes (I) and the phosphoranes (II) to give the olefins (III) or (IV) (+ isomerization products (V)).
ChemInform Abstract: Synthetic Studies Toward Verrucosidin: Determination of the Absolute Configuration.
Authors: CHA J. K. , COOKE R. J. 
Published: May 2016

AbstractThe hydroxydienecarboxylate (II), prepared from ethyl lactate (I), undergoes stereoselective hydroxylation and ring closure with osmium tetroxide in the presence of N‐methylmorpholine oxide, yielding the unsaturated lactone (III).
ChemInform Abstract: Flavone‐3‐carboxylic Acids, Esters, and Related Compounds from β‐Chloroarylidenemalonates.
Authors: HORMI O. E. O. , MOISIO M. R. , SUND B. C. 
Published: May 2016

AbstractThe chloromalonates (I) are coupled with the phenols (II) to give the arylphenoxymethylenemalonates (III).
ChemInform Abstract: Improved General Method of ortho‐Alkylation of Phenols Using Alkyl Isopropyl Sulfide, Sulfuryl Chloride, and Triethylamine. An Expedient Synthesis of Representative Oxygen Heterocycles and (2R,4′R,8′R)‐α‐Tocopherol.
Authors: INOUE S. , IKEDA H. , SATO S. , HORIE K. , OTA T. , MIYAMOTO O. , SATO K. 
Published: May 2016

AbstractReaction of the phenols (I) with the sulfides (II) in the presence of sulfuryl chloride gives unstable phenoxysulfonium chlorides which undergo base‐promoted rearrangement, forming the isopropylthioalkylphenols (III).
ChemInform Abstract: Electrolytic Transformation of Fluoroorganic Compounds. Part 3. Highly Regioselective Anodic Methoxylation of N‐(2,2,2‐Trifluoroethyl)amines.
Authors: FUCHIGAMI T. , NAKAGAWA Y. , NONAKA T. 
Published: May 2016

AbstractReduction of the trifluoroacetanilides (I) with borane dimethyl sulfide and subsequent electrolytic methoxylation produce the α‐methoxy‐trifluoroethylanilines (III).
ChemInform Abstract: Preparative Electrochemical Reduction of 2‐Amino‐6‐chloropurine and Synthesis of 6‐Deoxyacyclovir, a Fluorescent Substrate of Xanthine Oxidase and a Prodrug of Acyclovir.
Authors: KUSMIEREK J. T. , CZOCHRALSKA B. , JOHANSSON N. G. , SHUGAR D. 
Published: May 2016

AbstractDirect current polarography of 2‐amino‐6‐chloropurine (I) affords the desired 2‐aminopurine (II) in high yield.
ChemInform Abstract: Studies on Diazepines. Part 29. Syntheses of 3H‐ and 5H‐1,4‐Benzodiazepines from 3‐Azidoquinolines.
Authors: SASHIDA H. , FUJII A. , TSUCHIYA T. 
Published: May 2016

AbstractThe 3‐azidoquinolines (II), prepared from the 3‐aminoquinolines (I), undergo ring expansion reaction in the presence of sodium methoxide (III), forming the 3H‐1,4‐benzodiazepines (IV) or the dimethoxydihydro1‐,4‐benzodiazepine (V) which eliminates methanol on thermolysis, forming the 1,4‐benzodiazepine (IVa).
ChemInform Abstract: High‐Yield Synthesis of 20‐, 24‐, and 28‐Membered Macropentolide, ‐hexolide, and ‐heptolide, Respectively, from (R)‐ or (S)‐3‐Hydroxybutanoic Acid Under Yamaguchi′s Macrolactonization Conditions.
Authors: SEEBACH D. , BRAENDLI U. + , SCHNURRENBERGER P. , PRZYBYLSKI M. 
Published: May 2016

AbstractThe macrocyclic compounds (III) or their enantiomers, but not the cyclic tetramer are obtained from the oligomerization of the acid (I) or its enantiomer.
ChemInform Abstract: Synthesis of Alkylphosphonothious Acid S‐Monoesters.
Authors: SUNYASHIN O. G. , GORSHUNOV I. YU. , BATYEVA E. S. , PUDOVIK A. I. 
Published: May 2016

AbstractControlled oxidation of the phosphinothious acid ethyl esters (I) with elemental oxygen gives the phosphonothious acid S‐monoesters (II).
ChemInform Abstract: 2,3‐Bis(hetero(Si, Ge))‐Substituted Cyclopropanones.
Authors: ZAITSEVA G. S. , KISIN A. V. , FEDORENKO E. N. , NOSOVA V. M. , LIVANTSOVA L. I. , BAUKOV YU. I. 
Published: May 2016

AbstractThe silyldiazomethanes (III), prepard either by reaction of the silyl triflate (I) with diazomethane (II) or from the phosphoryl azide (IV) and the Grignard reagent (V), is coupled with the ketenes (VI) to give the title compounds (VII) stereoselectively as the Z‐isomers.
ChemInform Abstract: Tetraphenylcyclopentadiene and (4‐tert‐Butylphenyl)tetraphenylcyclopentadiene: Synthesis and Characterization of Their Alkali‐Metal Salts and Metallocenes of Germanium, Tin, and Lead.
Authors: SCHUMANN H. , JANIAK C. , ZUCKERMAN J. J. 
Published: May 2016

AbstractThe title compounds (I), prepared by a known method, and (p‐tert.‐butylphenyl)tetraphenylcyclopentadiene, obtained as a mixture of the isomers (XII)‐(XIV), their alkali‐metal salts (III), (V), and (XV) and the air‐stable metallocenes (VIII) and (XVII) are synthesized as shown in the scheme and characterized by IR, Raman, mass, 1H and 13C NMR spectra.
ChemInform Abstract: Synthesis, Characterization, and Solvatochromic Studies of Group 6 Metal Carbonyls Bound to the Bridging Ligand 2,3‐Bis(2‐pyridyl)pyrazine (dpp).
Authors: SHOUP M. , HALL B. , RUMINSKI R. R. 
Published: May 2016

AbstractThe ligand‐bridged homo‐ and heterobimetallic complexes (I) are prepared by reaction of the corresponding hexacarbonylmetal compounds with the title ligand (ratio 5:1) or of the mononuclear complexes M1(CO)4(dpp) with the hexacarbonyls M2(CO)6 (ratio 1:1) in refluxing toluene.
ChemInform Abstract: Synthesis of Metallacarborane Clusters Derived from the Monocarbon Carborane 9‐(CH3)2S‐7‐(((CH3)3Si)2CH)CB10H11.
Authors: QUINTANA W. , ERNEST R. L. , CARROLL P. J. , SNEDDON L. G. 
Published: May 2016

AbstractA single‐crystal X‐ray investigation of (III) (space group P21/n, Z=4), prepared by displacement of the Me2S group in (I) by PPh3, shows that the two compounds have similar structures.
ChemInform Abstract: New Pterocarpinoids from Dolichos marginata ssp. erecta.
Authors: GUNZINGER J. , MSONTHI J. D. , HOSTETTMANN K. 
Published: May 2016

AbstractThe constituents Sphenostylin A (Ia), B (Ib), C (IIa) and D (IIb) are isolated from the title species.
ChemInform Abstract: The Azirine/Oxazolone Method in Peptide Chemistry: Synthesis of Tripeptide Models.
Authors: WIPF P. , HEIMGARTNER H. 
Published: May 2016

AbstractTripeptides such as (VI) containing an α,α‐disubstituted α‐amino acid and ethyl p‐aminobenzoate can be synthesized in high yields by application of the azirine/oxazolone method.
ChemInform Abstract: Studies Related to Cephalosporins. Part 4. Electrophilic Addition to 3‐Exomethylene‐1‐cephams. The Addition of Phenylselenenyl Chloride.
Authors: BOTTA M. , DE ANGELIS F. , GAMBACORTA A. , DE FERRA L. , MONTESPERELLI G. , NICOLETTI R. 
Published: May 2016

AbstractThe 3‐exomethylene‐1‐cephams (I) react with phenylselenenyl chloride (II), yielding the adducts (III) and (IV).
ChemInform Abstract: Electrodeposition of Silicon from a Nonaqueous Solvent.
Authors: GOBET J. , TANNENBERGER H. 
Published: May 2016

AbstractElectroplating of Si from solutions of SiHCl3, SiCl4, SiBr4, SiEt4, Si(O‐Et)4, Si(O‐Ac)4, and Si(NMe2)4 in THF, using LiClO4, NBu4Br or NBu4ClO4 as supporting electrolyte is investigated by cyclic voltammetry, potentiostatic and galvanostatic electrolysis, SEM, electron probe microanalysis, and Auger electron spectroscopy.
ChemInform Abstract: Electrochemical Overcharge Protection of Rechargeable Lithium Batteries. Part 1. Kinetics of Iodide/Tri‐Iodide/Iodine Redox Reactions on Platinum in LiAsF6/Tetrahydrofuran Solutions.
Authors: BEHL W. K. , CHIN D.‐T. 
Published: May 2016

AbstractIn order to determine the usefulness of LiI as an additive for secondary Li batteries to prevent the oxidation of organic electrolytes, its charge/discharge behavior is investigated in the title electrolyte.
ChemInform Abstract: Triphenylphosphine Oxide as a Crystallization Aid.
Authors: ETTER M. C. , BAURES P. W. 
Published: May 2016

AbstractCocrystallization with triphenylphosphinoxide (Tpo) induces many organic compounds to crystallize readily in high quality crystals by complexation via strong hydrogen bonds between the phosphoryl oxygen and the proton donor of the substrate.
ChemInform Abstract: Thermochemical Study of the Addition of Carbenium Ions to Alkenes.
Authors: SCHADE C. , MAYR H. , ARNETT E. M. 
Published: May 2016

AbstractScales of carbenium ion stabilities are obtained from 1H NMR equilibrium studies of 9 mixtures such as those shown in the scheme and via calorimetric determination of the heats of ionization of such chlorides according to Ar2CHCl + BCl3 → Ar2CH+BCl4‐ in CH2Cl2/BCl3 at ‐70 °C. The heats of reaction of these Ar2CH+BCl4‐ with 2‐methyl‐1‐pentene increase from ‐53.1 to ‐33.0 kJ/mol depending on the para substituent whereas the heats of the Lewis acid catalyzed additions of Ar2CHCl to this alkene are independent of the para substituents (ΔH = ‐86.5 ±2.7 kJ/mol).
ChemInform Abstract: Acyclic Stereocontrol via an Electron‐Transfer Process. Remarkable Stereochemical Difference Between One‐ and Two‐Electron Events.
Authors: YAMAMOTO Y. , NISHII S. , IBUKA T. 
Published: May 2016

AbstractThe reaction of the Michael acceptor (Ia) with the alkylcopper (II) or the cuprate reagent (V) gives predominantly the syn products (III) in each case.
ChemInform Abstract: Highly Stereoselective Reduction of Chiral α‐Keto‐β,γ‐Unsaturated Acetals: Synthesis of Both Epimeric Allyl Alcohols by Proper Choice of Additive.
Authors: TAMURA Y. , ANNOURA H. , FUJIOKA H. 
Published: May 2016

AbstractReduction of the chiral α‐keto β,γ‐unsaturated acetals (I) yields the diastereomeric hydroxy acetals (II) and (III).
ChemInform Abstract: Molybdenum(0)‐Catalyzed Reductive Dehalogenation of α‐Halo Ketones with Phenylsilane.
Authors: PEREZ D. , GREENSPOON N. , KEINAN E. 
Published: May 2016

AbstractThe α‐halo ketones (Ia) ‐ (Id) and esters (Ie) and (If) are reductively dehalogenated with diphenylsilane in the presence of molybdenum hexacarbonyl, triphenylphosphine, and sodium bicarbonate.
ChemInform Abstract: The “ipso” Effect of Silicium in the Acylation of m‐Trimethylsilylanisole.
Authors: BENNETAU B. , KREMPP M. , DUNOGUES J. 
Published: May 2016

AbstractAcylation of m‐trimethylsilylanisole (I) using benzoyl chloride (II) or acetyl chloride (VII) gives the distribution of products as shown in the reaction scheme.
ChemInform Abstract: Synthesis and Properties of 2‐Cyano‐3,3,3‐trifluoropropionic Acid Esters.
Authors: SIZOV A. YU. , KOLOMIETS A. F. , FOKIN A. V. 
Published: May 2016

AbstractReaction of the fluoroolefins (I) with hexamethyldisilazane (II) gives the nitriles (IIIa) and (IIIb).
ChemInform Abstract: Radical Type Cyclization of Dienes. Part 2. The Regio‐ and Stereoselectivity of Radical Cyclopentane Synthesis from Dienes via Alkenylmercury Salts.
Authors: WEINGES K. , SIPOS W. 
Published: May 2016

AbstractOn treatment with Hg(OAc)2 the diene (I), prepared starting from 2‐hydroxy‐tetrahydropyran, cyclizes regioselectively to give the cyclopentane derivatives (II).
ChemInform Abstract: A Novel Preparation of 3‐Methylthio‐2‐oxopropanal Acetals Using Methylthiomethyl p‐Tolyl Sulfone.
Authors: OGURA K. , UCHIDA T. , TSURUDA T. , TAKAHASHI K. 
Published: May 2016

AbstractThe methylthiomethyl sulfone (II) is coupled with the alkoxyacetates (I) to give the alkoxyacetyl sulfones (III) which react with the alcohols (IV) in the presence of bases, producing the acetals (V) and (II).
ChemInform Abstract: Synthesis of 1,1′‐Biphenyl‐3‐carboxylic Acid and 3,5‐Dicarboxylic Acid Derivatives by Use of Ethoxymethylenemalononitrile.
Authors: SCHMIDT H.‐W. , KORES M. 
Published: May 2016

AbstractThe keto ester (I) reacts, via its sodium salt, with the ethoxymalononitrile (II) to afford the polyfunctional compound (III).
ChemInform Abstract: Host‐Guest Complexation. Part 45. A Highly Preorganized Chromogenic Spherand Indicator System Specific for Sodium and Lithium Ions.
Authors: CRAM D. J. , CARMACK R. A. , HELGESON R. C. 
Published: May 2016

AbstractThe spherand (IId), the synthesis of which is described, is a chromogenic ion‐selective indicating system capable of detecting Li+ and Na+ at concentrations as low as 10‐8 M in the presence of other common ions.
ChemInform Abstract: Enzymes in Organic Synthesis. Part 38. Preparations of Enantiomerically Pure Chiral Hydroxydecalones via Stereospecific Horse Liver Alcohol Dehydrogenase Catalyzed Reductions of Decalindiones.
Authors: DODDS D. R. , JONES J. B. 
Published: May 2016

AbstractThe preparative‐scale horse liver alcohol dehydrogenase catalyzed reduction of the sym. cis‐ and trans‐decalindiones (I) occurs with concurrent regio‐ and stereospecificity to give the enantiomerically pure keto alcohols (II).
ChemInform Abstract: Syntheses Using Cyclobutadienes. Part 21. Reactivity of Tri‐tert‐butylazete.
Authors: VOGELBACHER U. J. , LEDERMANN M. , SCHACH T. , MICHELS G. , HEES U. , REGITZ M. 
Published: May 2016

AbstractOxidation and hydrolysis reactions of the title compound (III) yield (I), (IV) and (V), while treatment with protic nucleophiles gives 1,4‐addition products (VII).
ChemInform Abstract: Stereoselective Intramolecular Michael Addition Induced by a Thermolabile Group: Synthesis of Optically Active Five‐Membered Oxygen‐Containing Rings.
Authors: BLOCH R. , SECK M. 
Published: May 2016

AbstractThe lactol (I), obtained by reduction of the corresponding lactone, reacts with the dimethylphosphinoacetate (II) to give the ester (III) which is pyrolyzed at 500°C, yielding the dihydrofuran (R)‐(IV).
ChemInform Abstract: A Novel SmI2‐Induced Masked‐Formylation of Carbonyl Compounds.
Authors: MATSUKAWA M. , INANAGA J. , YAMAGUCHI M. 
Published: May 2016

Abstract1,3‐Dioxolane (I) reacts with the aldehyde (IIa) or the ketones (IIb) and (IIc) in the presence of samarium diiodide, forming the hydroxy acetals (III).
ChemInform Abstract: A Novel Preparative Method for α,β‐Unsaturated Oxazolines via α‐Phenylthiooxazolines.
Authors: CLINET J. C. , BALAVOINE G. 
Published: May 2016

AbstractPhenylthioacetic acid (I) is coupled with 2‐aminoethanol (II) to give the oxazolines (III) which are lithiated and then treated with the halides (VI), yielding the substitution products (VII) and (VIII).
ChemInform Abstract: Nucleophile‐Promoted Electrophilic Cyclization Reactions of Alkynes.
Authors: OVERMAN L. E. , SHARP M. J. 
Published: May 2016

AbstractCyclization of the formaldiminium ions derived from (I) and (II) in the presence of a nucleophile such as (III) gives the exocyclic ring closure products (IV).
ChemInform Abstract: A Simple Approach to Nortropane and Nortrop‐6‐ene Derivatives.
Authors: BATHGATE A. , MALPASS J. R. 
Published: May 2016

AbstractCycloheptadiene‐1,3 (I) reacts with the nitroso compounds, generated in situ from the hydroxylamines (II), to give the adducts (III) which are cleaved to form the aminocycloheptenols (IV).
ChemInform Abstract: A Novel Route to Alkanes, Alcohols, and Ethers by Dehydrodimerization.
Authors: BROWN S. H. , CRABTREE R. H. 
Published: May 2016

AbstractPhotolysis of the dimethylcyclohexane (I), diisopropyl ether (VI), and the trifluoroethanol (VIII) in the presence of mercury results in dehydrodimerization, yielding the products (II) ‐ (V), (VII) or (IX) and (X).
ChemInform Abstract: Reaction of Phosphorus‐Substituted Epoxides with Alcohols and Phenols.
Authors: RYAZANTSEV E. N. , PONOMAREV D. A. , AL'BITSKAYA V. M. 
Published: May 2016

AbstractThe oxiranylmethylphosphonates (I) react with the alcohols (IIa) or the phenols (IIb) in the presence of the coresponding alcoholates or phenolates to give the propylphosphonates (III).