bluuebunny/crossref_metadata_2025 huggingface dataset:
ChemInform Abstract: Radical Cyclizations of Propargyl Bromoamides and Propargyl Bromoesters. New Routes to Tetramic Acids, Pyrrolinones, Tetronic Acids, and Butenolides.
Authors: CLOUGH J. M. , PATTENDEN G. , WIGHT P. G.
Published: May 2016

The N‐propargyl α‐bromo amides (I) undergo radical‐induced ring closure to form the methylene‐γ‐lactams (II).
ChemInform Abstract: N‐Acyliminium Cyclizations: Formation of the Furo(3,4‐a)pyrrolizine Ring System.
Authors: ENT H. , DE KONING H. , SPECKAMP W. N.
Published: May 2016

When the (benzyloxyalkenyl)hydroxy‐γ‐lactams (Ia) and (Ib) are treated with formic acid, O‐debenzylation and cyclization take place to produce the fused 1,3‐oxazine (IIa) and the furopyrrolizines (IIIa) and (IIIb).
ChemInform Abstract: Novel Photorearrangements of Bridgehead‐Substituted Dibenzobarrelene Derivatives in Solution and the Solid State.
Authors: POKKULURI P. R. , SCHEFFER J. R. , TROTTER J.
Published: May 2016

Photolysis of crystals of (I) affords mainly diester (II); the di‐π‐methane photoproduct (III) as well as the cyclooctatetraene (COT) derivative (IV) are also formed.
ChemInform Abstract: Photochemical Reactions of 4‐Phenylquinazolin‐2‐ones.
Authors: NISHIO T. , KAMEYAMA S. , OMOTE Y. , KASHIMA C.
Published: May 2016

The 4‐phenylquinazolin‐2‐ones (I) undergo addition reaction with (thio)ethers such as (II) to produce the 1:1 adducts such as (III).
ChemInform Abstract: Epoxidation of Alkenes by Oxo(5,10,15,20‐tetrakis(2,6‐dimethyl‐3‐sulfonatophenyl)porphinato)chromium(V) in Aqueous Solution.
Authors: GARRISON J. M. , LEE R. W. , BRUICE T. C.
Published: May 2016

The water‐soluble and non μ‐oxo dimer forming complex diaquo(5,10,15,20‐tetrakis(2,6‐dimethyl‐3‐sulfonatophenyl)porphinato)chromium(III) is prepared by metalation of the free base and transformed into the corresponding oxo‐Cr(V) porphyrin by controlled potential bulk electrolysis.
ChemInform Abstract: Electrochemical Reduction of Halogenoketones. Part 2. Behavior of Cyclic 2‐Bromo‐ and 2‐Chloroketones.
Authors: CARELLI I. , CURULLI A. , INESI A. , ZEULI E.
Published: May 2016

The electrochemical reduction of the halosubstituted cyclic ketones (I) at a mercury cathode gives the ketones (II) and (III).
ChemInform Abstract: Preparation and Wittig Reactions of an α‐Keto Amino Acid Derivative.
Authors: O'DONNELL M. J. , ARASAPPAN A. , HORNBACK W. J. , HUFFMAN J. C.
Published: May 2016

Oxalyl chloride (I) consecutively reacts with tert‐butanol (II) and benzophenonimine (III) to form the monoimide (IV).
ChemInform Abstract: Preparation of Epoxides by Oxidative Decarboxylation of β‐Hydroxy Acids. Stereo‐ and Regiochemistry of Oxidative Elimination of Secondary Radicals with Cupric Acetate.
Authors: SNIDER B. B. , KWON T.
Published: May 2016

The β‐hydroxycarboxylic acids (III), prepared by coupling of the carboxylic acids (I) with the aldehydes and ketones (II), are oxidized with lead tetraacetate to form the epoxides (IV) via decarboxylation.
ChemInform Abstract: The Reimer‐Tiemann Reaction, Enhanced by Ultrasound.
Authors: COCHRAN J. C. , MELVILLE M. G.
Published: May 2016

The p‐substituted phenols (I), (IV), and (VI) are subjected to Reimer‐Tiemann reaction in the presence of ultrasound under various conditions: The irradiation sources are modified and sodium hydroxide is added either as a solid or in an aqueous solution.
ChemInform Abstract: A Stereoselective Synthesis of Ethyl (2E,4Z)‐2,4‐Decadienoate: Pear Ester.
Authors: SHARMA G. V. M. , RAJAGOPAL D.
Published: May 2016

The target compound (VIII), which is responsible for the odor and taste of Pyrus communis (Bartlett pears), is prepared from the enynol (I) as outlined in the reaction scheme.
ChemInform Abstract: Zinc Salt Catalyzed Synthesis of β‐Silyloxyacylcyclopropanes and Homoallyl Rearrangement of Cyclopropyl Carbinoles by Trimethylsilyl Halides.
Authors: IVANOVA N. M. , CHESKIS B. A. , MOISEENKOV A. M. , NEFEDOV O. M.
Published: May 2016

The silyloxyvinylcyclopropane (I) reacts with the aliphatic aldehydes (II) in the presence of ZnCl2 to give the adducts (III).
ChemInform Abstract: Cyclynes. Part 7. Homoconjugated Cyclic Polydiacetylenes.
Authors: SCOTT L. T. , COONEY M. J. , JOHNELS D.
Published: May 2016

The synthesis of the first four title compounds (I)‐(IV) is reported.
ChemInform Abstract: Synthesis of 4,4‐Disubstituted Cyclohexenones. Part 2. Cycloaddition of 2‐Chloroacrylonitrile to 5‐Substituted 1,3‐Dimethoxycyclohexa‐1,4‐dienes.
Authors: CLARK R. S. J. , HOLMES A. B. , MATASSA V. G.
Published: May 2016

In order to find a general method for the preparation of cyclohexenones, which are useful intermediates in organic synthesis of fused polycyclic systems, the formation of (XII) is investigated.
ChemInform Abstract: 2‐Fluoromethyl‐4,4,6‐trimethyl‐1,3‐oxazine as a New Reagent for the Preparation of α‐Fluoro Aldehydes.
Authors: PATRICK T. B. , HOSSEINI S. , BAINS S.
Published: May 2016

Cyclocondensation of the 1,3‐diol (I) with fluoroacetonitrile (II) produces the fluoromethyldihydro‐1,3‐oxazine (III) which is deprotonated and then coupled with the halides (VI) or the carbonyl compounds (IX), yielding the branched 2‐fluoroalkyl‐1,3‐oxazines (VII) and (X).
ChemInform Abstract: Intramolecular Biaryl Coupling: Synthesis of the Chiral B‐Ring Unit of Pradimicinone.
Authors: KELLY T. R. , LI Q. , BHUSHAN V.
Published: May 2016

Selective bishydroxylation of the cis‐stilbenes (I) gives the diols (II).
ChemInform Abstract: Synthesis of (4′R)‐ and (4′S)‐5‐(2′,2′‐Dimethyl‐1′,3′‐dioxolan‐4′‐yl)‐3‐phenyl‐4,5‐dihydro‐1,2,4‐oxadiazoles and (4′R)‐5‐(2′,2′‐Dimethyl‐1′,3′‐dioxolan‐4′‐yl)‐3‐phenyl‐1,2,4‐oxadiazole.
Authors: COTTIER L. , FAURE R. , DESCOTES G. , SRIVASTAVA R. M.
Published: May 2016

Cyclization reaction of benzamidoxime (I) with 2,3‐O‐isopropylidene‐D‐glyceraldehyde (II) produce predominantly the 4,5‐dihydro‐1,2,4‐oxadiazole (III).
ChemInform Abstract: Convenient Synthesis of 3‐Aryl‐4H‐(1)benzopyrano(3,4‐d)isoxazol‐4‐ones.
Authors: LITINAS K. E. , NICOLAIDES D. N. , VARELLA E. A.
Published: May 2016

Heating of the isoxazolecarboxylates (III) gives rise to the title heterocycles (V).
ChemInform Abstract: A Convenient Synthesis of 5‐Acyl‐6‐substituted‐3‐cyano‐2(1H)‐pyridinones.
Authors: JONES W. D. JUN. , SCHNETTLER R. A. , HUBER E. W.
Published: May 2016

Treatment of the diketones (Ia) and (Ib), which bear different substituents R1 and R2, with cyanoacetamide (III) leads to formation of regioisomeric mixtures (IVa)/(IVc) + (IVb)/(IVd) of the title compounds.
ChemInform Abstract: Stereoselective Formal Synthesis of (.+‐.)‐Monomorine I from 6‐Methyl‐2‐piperidinone.
Authors: NAGASAKA T. , KATO H. , HAYASHI H. , SHIODA M. , HIKASA H. , HAMAGUCHI F.
Published: May 2016

Whereas hydrogenation of the alkoxycarbonyl ketoximes (Ib) ‐ (Id) under pressure yields the lactams (IIb) ‐ (IId), the corresponding butyrate (Ia) does not undergo this cyclization reaction.
ChemInform Abstract: Selective Preparation of cis‐3,5‐Dibromo‐4‐oxo‐2,2,6,6‐tetramethyl‐1‐hydroxypiperidine and Copper‐Catalyzed Conversion to Nitroxide by Peroxide.
Authors: BRIK M. E.
Published: May 2016

When the tetramethylpiperidone (I) is brominated, only mixtures of the cis‐ and trans‐α,α'‐dibromides are obtained.
ChemInform Abstract: Pyrrolo(1,2‐b)isoquinoline‐5,10‐diones and Indolizine‐5,8‐diones.
Authors: CORNFORTH J. , DU M.
Published: May 2016

Pyrroloisoquinolinediones such as (III) are prepared by two efficient procedures.
ChemInform Abstract: Synthesis of New Primary, Secondary, and Tertiary 3‐Aminothieno(2,3‐b)pyridine‐2‐carboxamides on Different Ways.
Authors: WAGNER G. , VIEWEG H. , LEISTNER S. , BOEHM N. + , KRASSELT U. , HANFELD V. , PRANTZ J. , GRUPE R.
Published: May 2016

Reaction of the 2‐thioxo‐1,2‐dihydropyridine‐3‐carbonitriles (I) with the chloroacetamides (II) gives the title compounds (III).
ChemInform Abstract: Molecular Yardsticks: Synthesis of Higher Homologs of 7,12‐Dihydropyrido(3,4‐b:5,4‐b′)diindole. Probing the Dimensions of the Benzodiazepine Receptor Inverse Agonist Site.
Authors: NARAYANAN K. , COOK J. M.
Published: May 2016

Reaction of the benzoyltetrahydrooxo‐β‐carboline (I) with the aromatic hydrazines (II) or (IV) leads to the formation of the fused pyrroles (III) or (V).
ChemInform Abstract: Reactivity of Substituted N‐Aminopyridinium Salts and Their Benzologues. A Novel Approach to s‐Triazolo(1,5‐a)quinolinium and s‐Triazolo‐(5,1‐a)isoquinolinium Derivatives.
Authors: BATORI S. , SANDOR P. , MESSMER A.
Published: May 2016

The heterocyclic N‐amino salts (I) and (IX) react with triethyl orthoformate (II) in acetonitrile to produce the imino ethers (III) and (X).
ChemInform Abstract: Transformation of 9‐Hydroxy(chloro,bromo)‐4‐azafluorene into Bi(9‐chloro(bromo)‐4‐azafluoren‐9‐yl).
Authors: PROSTAKOV N. S. , KRUGLYAK E. V. , SHALIMOV V. P. , SERGEEVA N. D.
Published: May 2016

9‐Chloro‐4‐azafluorene (II), prepared from the carbinol (I), dimerizes upon refluxing in thionyl chloride to produce the bi(chloroazafluorenyl) (III).
ChemInform Abstract: Synthesis and Properties of Hydrogenated 5‐Alkylthio‐5‐oxo‐3‐cyanoindeno(1,2‐b)pyridines.
Authors: KRAUZE A. A. , LIEPIN'SH E. E. , DUBUR G. YA.
Published: May 2016

Cyclocondensation of the 2‐benzylidene‐1,3‐indanediones (I) with cyanothioacetamide (II) followed by S‐alkylation gives the tetrahydroindeno‐(1,2‐b)pyridines (IV), which are dehydrated, producing the hydroindenopyridines (V).
ChemInform Abstract: Synthesis and Reactions of Biginelli Compounds. Part 3. Unexpected Formation of Nitriles from Reactions of 6‐(Dibromomethyl)‐1,2,3,4‐tetrahydro‐2‐oxo‐5‐pyrimidinecarboxylates with Sodium Azide.
Authors: KAPPE C. O.
Published: May 2016

In continuation of the study of pyrimidine compounds the azido group is introduced into this system (cf.
ChemInform Abstract: Lactam Acetals and Acid Amide Acetals. Part 56. Synthesis of Pyrimidine Derivatives from N‐Carbamoylamidines.
Authors: DOZOROVA E. N. , GRIZIK S. I. , GRANIK V. G.
Published: May 2016

The carbamoylformamidine (IV), prepared from the DMF acetal (I) via the aminomethylencyanamide (III), is coupled with cyanoacetamide (V) or ethyl anthranilate (VII) to give the pyrimidone (VI) and the quinazolinedione (VIII) respectively.
ChemInform Abstract: One Pot Synthesis of 4‐Arylbenzoxazolo(3,2‐a)‐s‐triazine‐2‐thiones.
Authors: SAMBAIAH T. , REDDY K. K.
Published: May 2016

The title compounds (III) are obtained as the main products from the cyclocondensation of the 2‐aminobenzoxazoles (I) with the aroyl isothiocyanates (II).
ChemInform Abstract: The Synthesis of a 10‐Membered Benzo‐Oxadiyne Ring.
Authors: SINGH R. , JUST G.
Published: May 2016

1,2‐Dibromobenzene (I) is converted to the o‐dialkynylbenzenes (VIb) or (VIc).
ChemInform Abstract: Reinvestigation of the Reaction of Lithium Trimethylsilyl Acetate Enolate with Chlorotrimethylsilane.
Authors: BELLASSOUED M. , GAUDEMAR M.
Published: May 2016

Trimethylsilyl acetate (II) reacts with LDA (I) to generate the ester enolate (III) which equilibrates with the C‐lithiated ester (IV).
ChemInform Abstract: Hydroxyalkylation of Diethyl Vinylphosphonate in the Presence of DABCO.
Authors: AMRI H. , EL GAIED M. M. , VILLIERAS J.
Published: May 2016

Diethyl vinylphosphonate (I) is coupled with the aldehydes (II) in the presence of 20 up to 30 mol% 1,4‐diazabicyclo(2.2.2)octane to produce the branched hydroxyalkenylphosphonates (III).
ChemInform Abstract: Preparation and X‐Ray Structure of the Bis(pentacarbonyltungsten) Complex of 1,3‐Diphosphaallene With η1‐Coordination Mode.
Authors: YOSHIFUJI M. , TOYOTA K. , NIITSU T. , INAMOTO N. , HIROTSU K.
Published: May 2016

The title complex (IV), obtained besides the monocoordinated complex (III), crystallizes in the space group P21/a with Z=4.
ChemInform Abstract: ((MeC5H4)3U)2(μ‐1,4‐N2C6H4): A Bimetallic Molecule with Antiferromagnetic Coupling Between the Uranium Centers.
Authors: ROSEN R. K. , ANDERSEN R. A. , EDELSTEIN N. M.
Published: May 2016

The bimetallic, pentavalent uranium derivatives (III) and (V) of the 5f electron configuration show antiferromagnetic coupling in (III) and the lack of coupling in (V).
ChemInform Abstract: Metal‐Mediated Reduction of Alkanenitriles to Imido Ligands. Formation of the Imido Complexes Re(NCH2R)X3(dppbe) (R: Me, Et, i‐Pr; X: Cl, Br) from the Reactions of the Octahalodirhenate(III) Anions with 1,2‐Bis(diphenylphosphino)benzene in Nitrile Solvents (RCN).
Authors: ESJORNSON D. , BAKIR M. , FANWICK P. E. , JONES K. S. , WALTON R. A.
Published: May 2016

The reactions of the octahalodirhenate(III) anions (I) with the diphosphine (II) in refluxing methanol afford the mononuclear ionic Re(III) complexes (III).
ChemInform Abstract: Carbon‐Carbon Bond Formation at Diiron Centers. Part 5. Synthesis of Anionic Vinyl‐Bridged Diiron Complexes and Their Reactivity Toward Alkynes.
Authors: YANEZ R. , ROS J. , MATHIEU R.
Published: May 2016

The vinyl‐bridged Fe2 complexes (IVa)‐(IVc) are synthesized in high yields according to the scheme.
ChemInform Abstract: Synthesis and Structure of Diiron Compounds Containing Both Diphenylphosphido and Ethenyl Bridges. Crystal Structure of (Fe2(CO)6(μ‐PPh2)(μ‐CPh=CPhH)).
Authors: YANEZ R. , ROS J. , MATHIEU R. , SOLANS X. , FONT‐BARDIA M.
Published: May 2016

The ethenyl‐ and diphenylphosphido‐bridged diiron compounds (III) are synthesized by the two different methods shown.
ChemInform Abstract: Transition Metal‐Cyanocarbon Chemistry. Part 10. Reactions of Monocyanoacetylene and Dicyanoacetylene with Organometallic Compounds of Cobalt(I) and Nickel(II). Crystal Structure of (Co(CCCN)2(η5‐C5H5)(P(C6H5)3)).
Authors: KERGOAT R. , GOMES DE LIMA L. C. , JEGAT C. , LE BERRE N. , KUBICKI M. M. , GUERCHAIS J. E. , L'HARIDON P.
Published: May 2016

Because of low steric hindrance together with the presence of C≡C and C≡N unsaturated systems and the strong electron‐withdrawing effect of the CN group, the reactions with cyanoalkynes are rapid and give products different from those found in reactions with other alkynes.
ChemInform Abstract: Silver Derivatives of Various Bis(pyrazol‐1‐yl)alkanes: Their Behavior in Solution and X‐Ray Crystal Structure of ((Me2C(pz)2)2Ag)ClO4.
Authors: LORENZOTTI A. , BONATI F. , CINGOLANI A. , GIOIA LOBBIA G. , LEONESI D. , BOVIO B.
Published: May 2016

Various bis(pyrazol‐1‐yl)alkanes react in ethanol with Ag(I) salts to give the 1:1 and 2:1 adducts (I) and (II) with 35‐72% yield.
ChemInform Abstract: Preparation, Solution Dynamics, and X‐Ray Crystal Structure of the Anilide‐Bridged Diruthenium Complex ((η6‐C6Me6)2Ru2(μ‐NHPh)3)(BF4).
Authors: MARTIN G. C. , PALENIK G. J. , BONCELLA J. M.
Published: May 2016

The method of deprotonation of coordinated amines in the synthesis of metal amides is used for the complex (III).
ChemInform Abstract: Synthesis and Crystal Structure of a Pentanuclear Heterometallic Acetylide Complex Cp2Mo2Ru3(CO)10(CCPh)2.
Authors: HWANG D.‐K. , CHI Y. , PENG S.‐M. , LEE G.‐H.
Published: May 2016

In the reaction of the acetylide (I) with Ru3(CO)12 (II), beside the expected trinuclear acetylide derivative (III) and unreacted (II) the title complex (IV) is obtained (space group P21/c, Z = 8).
ChemInform Abstract: Condensation and Degradation Products from the Thermolysis Reactions of the Bridged Diphenylphosphido Derivatives (Ru3(μ2‐PPh2)(μ2‐H)(CO)9), (Ru3(μ2‐PPh2)2(μ2‐H)2(CO)8), (Ru3(μ2‐PPh2)3(μ2‐H)(CO)7) and (Ru3(μ2‐PPh2)3(μ2‐H)(CO)6(PPh2H)).
Authors: FIELD J. S. , HAINES R. J. , MULLA F.
Published: May 2016

As part of a program aimed at exploring the potential of the diphenylphosphido and phenylphosphinidene ligands for stabilizing homo‐ and heteronuclear metal clusters of unusual geometry and stereochemistry, the thermolysis of the title compounds is examined with the object of developing high yield syntheses of higher nuclearity Ru clusters containing bridging diphenylphosphido and/or capping phenylphosphinidene groups.
ChemInform Abstract: Synthetic Studies Towards Complex Diterpenoids. Part 18. Total Synthesis of (.+‐.)‐Isopisiferin and the Related Compounds.
Authors: DEB S. , BHATTACHARJEE G. , GHATAK U. R.
Published: May 2016

The title compound (Vc), which can be isolated from the seeds of Chamaecyparis pisifera, and the related compounds (Va) and (Vb) are prepared by a simple and general route.
ChemInform Abstract: Alkylative Lactonization of γ,δ‐Unsaturated Esters with α‐Chloro Sulfides. A Concise Synthesis of the Monoterpene Lactone from Chrysanthemum flosculosum L.
Authors: ISHIBASHI H. , NAKATANI H. , SO T. S. , FUJITA T. , IKEDA M.
Published: May 2016

Reaction of the α‐chloro sulfides (I) and (IV) with the unsaturated esters (II) and (V) in the presence of tin tetrachloride results in cyclization to produce the δ‐lactones (III) or (VI).
ChemInform Abstract: Photocyclisation of Enamides. Part 29. A General Strategy for the Synthesis of Ipecac and Heteroyohimbine Alkaloids.
Authors: NAITO T. , KOJIMA N. , MIYATA O. , NINOMIYA I. , INOUE M. , DOI M.
Published: May 2016

The ester (V) and the lactone (X) are synthesized via the common intermediate (III) (space group P21/n; Z=4).
ChemInform Abstract: Synthesis of Certain Pyrazolo(3,4‐d)pyrimidin‐3‐one Nucleosides.
Authors: ANDERSON J. D. , COTTAM H. B. , LARSON S. B. , NORD L. D. , REVANKAR G. R. , ROBINS R. K.
Published: May 2016

The title nucleosides (III) (space group P212121 with Z = 8), (IV) (space group P21 with Z=2; no yield given), (VII) and (IX) are prepared via the same glycosylation procedure.
ChemInform Abstract: Synthesis of (.+‐.)‐Carbocyclic‐3′‐deoxy‐4′‐(hydroxymethyl)adenosine and (.+‐.)‐Carbocyclic‐3′‐deoxy‐4′‐(hydroxymethyl)guanosine as Potential Antiviral Agents.
Authors: LEGRAVEREND M. , HUEL C. , BISAGNI E.
Published: May 2016

In order to explore the effect of modifications in the sugar moiety of nucleosides on their antiviral activity, the carbocyclic purine nucleosides (VI) and (VII) are prepared as shown for (VI).
ChemInform Abstract: Stereoselective Total Syntheses of the Antitumor Antibiotics (+)‐Actinobolin and (‐)‐Bactobolin from a Common Bridged Lactone Intermediate.
Authors: GARIGIPATI R. S. , TSCHAEN D. M. , WEINREB S. M.
Published: May 2016

Efficiently, highly stereoselective approaches to (+)‐actinobolin (XV) and (‐)‐bactobolin (XXIII) start from the common intermediate (II).
ChemInform Abstract: Diastereoselective Synthesis of (‐)‐(5R,6S)‐6‐Acetoxyhexadecan‐5‐olide.
Authors: WU W.‐L. , WU Y.‐L.
Published: May 2016

Two novel, short and efficient routes are reported for the synthesis of the title hexadecanolide (X), the natural mosquito oviposition attractant pheromone.
ChemInform Abstract: Strategies of Synthesis Based on Cyclohexadienes. Part 3. A Novel Route to Macrolide Aromatic Polyketides.
Authors: BIRCH A. J. , MANI N. S. , RAO G. S. R. S.
Published: May 2016

The diphenyloxazole (VIII) and the ester (XIII) are precursors of the biologically active natural products curvularin (±)‐(XIV) and lasiodiplodin (±)‐(XV).
ChemInform Abstract: Calix(n)arenes. Part 3. Calix(n)arene Derivatives with Antioxidation Effectivity.
Authors: GOERMAR G. + , SEIFFARTH K. , WENDT D. , BURTZLAFF C.
Published: May 2016

The new title compounds (I) are prepared by acylation of the corresponding phenolic parent compound.
ChemInform Abstract: Chemical Oscillations and Instabilities. Part 86. Mechanisms of Some Chemical Oscillators
Authors: NOYES R. M.
Published: May 2016

Review: (review of five selected reactions: the Belousov‐Zhabotinsky, Bray‐Liebhafsky, and Briggs‐Rauscher reactions, the oscillatory autoxidation of benzaldehyde, and gas‐evolution oscillators.
ChemInform Abstract: Structure and Thermal Stability of the Hydrogenselenate Na5H3(SeO4)4·2 H2O.
Authors: KOZLOVA N. P. , ISKHAKOVA L. D. , MARUGIN V. V. , ZHADANOV B. V. , POLYAKOVA I. A.
Published: May 2016

The hitherto unknown title compound is isolated from the system Na2SeO4‐H2SeO4‐H2O. Its space group is P1 with Z=1.
ChemInform Abstract: The Formation of Cu2O Layers on Cu and Their Electrochemical and Photoelectrochemical Properties.
Authors: COLLISI U. , STREHBLOW H.‐H.
Published: May 2016

Cu2O films of up to 30 nm thickness are grown on preformed Cu2O passivating layers on Cu by cathodic reduction of (CuO2)2‐ in 5 M KOH and their electronic properties are studied by photocurrent and capacity measurements.
ChemInform Abstract: Platinum Dispersed on Carbon Catalyst for a Fuel Cell: A Preparation with Sorbitan Monolaurate.
Authors: HONJI A. , MORI T. , HISHINUMA Y.
Published: May 2016

The preparation of Pt/carbon catalysts by reduction of chloroplatinic acid with MeOH containing sorbitan monolaurate is found to yield highly dispersed Pt particles.
ChemInform Abstract: Novel Explanation of Unusual Localized Corrosion in Energy Conversion Devices.
Authors: FAROOQUE M. , KUSH A. , CHRISTNER L.
Published: May 2016

In some electrochemical cells having flowing reactants (fuel cells, flow batteries) an unusually high localized corrosion has been observed which is not explainable by the "normal" electrode potential.
ChemInform Abstract: Impedance Measurements and Analysis of the Corrosion of Chromium.
Authors: DOBBELAAR J. A. L. , DE WIT J. H. W.
Published: May 2016

The corrosion mechanism of chromium is studied by impedance measurements in the active, active‐passive, and the first part of the passive region and the results are explained by a simple mechanism.
ChemInform Abstract: Synthesis, Properties and Thermal Decomposition of the Hydrazinate of Zinc Borohydride.
Authors: KONOPLEV V. N. , SIZAREVA A. S. , YAGZHEV V. V.
Published: May 2016

Reaction between Zn(BH4)2 (I) and anhydrous N2H4 (II) yields the hitherto unknown title compound (III).
ChemInform Abstract: Unraveling Overlapping Multiplets in 2D NMR Correlation Spectra by Selective Inversion of Coupling Partners.
Authors: EMSLEY L. , HUBER P. , BODENHAUSEN G.
Published: May 2016

Clean and simple two‐dimensional multiplet patterns instead overlapping multiplets can be generated in an NMR experiment by employing selective pulses that single out small segments of a complete spectrum.
ChemInform Abstract: Differentiation of Isomeric Camphane‐2,3‐diols by NMR Spectroscopy and Chemical Ionization Mass Spectrometry.
Authors: PARTANEN T. , MAELKOENEN P. J. + , VAINIOTALO P. , VEPSAELAEINEN J. +
Published: May 2016

All the four diastereoisomeric camphane‐2,3‐diols (I) are synthesized and their structures verified by 1H and 13C NMR.
ChemInform Abstract: Structural Characterization of the Pseudoenantiomeric cis‐Dioxoosmium(VI) Esters of Chiral Diols with Chinchona Alkaloid Ligands.
Authors: PEARLSTEIN R. M. , BLACKBURN B. K. , DAVIS W. M. , SHARPLESS K. B.
Published: May 2016

Starting point for the development of structure/activity correlations for the asym.
ChemInform Abstract: Auxiliary‐Based, Asymmetric SN2′ Reactions: A Case of 1,7‐Relative Stereogenesis.
Authors: DENMARK S. E. , MARBLE L. K.
Published: May 2016

The chiral carbamates (I), derived from an achiral allylic alcohol and optically active amines, are subjected to vinylogous bimolecular nucleophilic substitution.
ChemInform Abstract: Transformation of α‐Assisted Carbanions into the Corresponding Trimethylsiloxy Derivatives Using Bis(trimethylsilyl) Peroxide.
Authors: DEMBECH P. , GUERRINI A. , RICCI A. , SECONI G. , TADDEI M.
Published: May 2016

The reaction between the lithiated sulfides or nitriles (I) and bis(trimethylsilyl) peroxide (II) affords the title compounds, i.e. the trimethylsilyloxy derivatives (III).
ChemInform Abstract: Diastereoselective Reactions of Selenoacetals.
Authors: HOFFMANN R. W. , BEWERSDORF M.
Published: May 2016

The selenoacetal (IV), prepared from the silylated β‐hydroxyhexanal (I) via (III), is lithiated to yield the intermediate (V) which stereoselectively reacts with various nucleophiles.
ChemInform Abstract: The N‐Substitution of Aliphatic Primary Amines via 1‐((Alkylamino)methyl)benzotriazoles: Preparation of Secondary Amines.
Authors: KATRITZKY A. R. , NOBLE G. , PILARSKI B. , HARRIS P.
Published: May 2016

A novel method for the selective conversion of aliphatic primary amines into unsym. substituted secondary amines is described.
ChemInform Abstract: Reactions of Perchlorofluoro Compounds. Part 6. Rearrangement of Higher Perchlorofluoro Olefins and Their Reactions with Nucleophiles and Electrophiles.
Authors: HU C.‐N. , LIU H. , XU Z.‐Q.
Published: May 2016

Isomerization reactions of perchlorofluoroalkenes such as (I) and (II) are induced by fluoride ions or by Lewis acids like AlCl3, SbF5, or FSO3H. The products are the most stable E‐configurated internal olefins.
ChemInform Abstract: Convenient Preparation of Acetals Over Hydrous Zirconium Oxide.
Authors: SHIBAGAKI M. , TAKAHASHI K. , KUNO H. , MATSUSHITA H.
Published: May 2016

The condensation is carried out with or without azeotropic removal of water.
ChemInform Abstract: Synthesis of Optically Active α‐Alkyl Thioglycolic Acid Derivatives.
Authors: LIU H.‐H. , CHEN E.‐N. , UANG B.‐J. , WANG S.‐L.
Published: May 2016

(R)‐(+)‐Camphor (I) is coupled with thioglycolic acid (II) to form mainly the spirocyclic oxathiolan‐5‐one (III), together with minor amounts of the isomer (IV).
ChemInform Abstract: Synthesis of Methomyl Derivatives as New Photosensitive Molecular Probes.
Authors: ARANDA G. , RIANT O.
Published: May 2016

Carbamoylthioacetimidates such as (VIII) are analogues of methomyl (IX) which is an insecticide active in Male Texas corn mitochondria.
ChemInform Abstract: Homochiral Group Transfer in Organic Synthesis Via α‐Diazocarbonyl Intermediates.
Authors: COLLINS J. C. , DILWORTH B. M. , GARVEY N. T. , KENNEDY M. , MCKERVEY M. A. , O'SULLIVAN M. B.
Published: May 2016

The chloro diazoketone (I) reacts with cyclohexane (II) in the presence of rhodium(II) mandelate to yield the CH‐insertion product (III).
ChemInform Abstract: The Synthesis and Structure of 3,4‐Di‐tert.‐butylbenzoic Acid.
Authors: HAMBLEY T. W. , STERNHELL S. , TANSEY C. W.
Published: May 2016

The title compound (VI), obtained as a solid, is the first simple o‐di‐tert.‐butylbenzene, whose structure is determined by X‐ray analysis (space group is P1 with Z=2).
ChemInform Abstract: Reaction of N‐Arylphthalisoimidium Perchlorates with Amines and Aromatic Hydrocarbons under Friedel‐Crafts Conditions: A New and Convenient One‐Step Method for the Synthesis of 2,3‐Diaryl‐3‐hydroxyphthalimidines.
Authors: ISMAIL M. F. , ENAYAT E. I. , EL‐BASSIOUNY F. A. , YOUNES H. A.
Published: May 2016

The perchlorates (II) are highly susceptible for attack by amines to give the derivatives (IV).
ChemInform Abstract: Stereoselective Reductions of 2‐Keto Sulfoxides with Hydrides.
Authors: CARRENO M. C. , RUANO J. L. G. , MARTIN A. M. , PEDREGAL C. , RODRIGUEZ J. H. , RUBIO A. , SANCHEZ J. , SOLLADIE G.
Published: May 2016

The authors investigate the reduction of β‐keto sulfoxides such as (I) with various metal hydrides.
ChemInform Abstract: Multiple Reductive Cleavage of Calixarene Diethyl Phosphate Esters: A Route to (1n)Metacyclophanes.
Authors: GOREN Z. , BIALI S. E.
Published: May 2016

The cleavage of the intra‐annular hydroxy groups of (I) via the phosphate ester (II) leads to a conformationally flexible (14)metacyclophane (IV), as shown by NMR.
ChemInform Abstract: Stereoselective Synthesis and Stereospecific Asymmetric 1,2‐Rearrangements of Chiral Sulfinylcyclopropane Derivatives.
Authors: HIROI K. , ANZAI T. , OGATA T. , SAITO M.
Published: May 2016

The tolylsulfinylcyclopropane (R)‐(I) is deprotonated and then acylated to give the α‐sulfinylcyclopropyl ketones (S)‐(III).
ChemInform Abstract: 3,4,8,9‐Tetramethylene‐endo‐2,5:endo‐7,10‐dietheno‐cis‐decalin. A New Exocyclic Diene Bridged Polycyclic Hydrocarbon.
Authors: LIN C.‐T. , CHOU T.‐C.
Published: May 2016

The known Diels‐Alder adduct (III) of the tricyclic triene (I) and maleic anhydride (II) is reduced to give the diol (IV) and then subjected to dechlorination followed by acetal hydrolysis.
ChemInform Abstract: Preparation and Some Reactions of Tricyclo(3.3.0.01,4)octan‐2‐ones and Tricyclo(3.2.0.01,4)heptan‐2‐ones.
Authors: COTTERILL I. C. , FINCH H. , HIGHCOCK R. M. , HOLT R. A. , MAHON M. F. , MOLLOY K. C. , MORRIS J. G. , ROBERTS S. M. , SHORT K. M. , SIK V.
Published: May 2016

The title tricyclooctanes (II) and tricycloheptanones (IX) are subjected to an attack by a variety of nucleophiles and electrophiles.
ChemInform Abstract: Condensed Cyclic and Bridged‐Ring Systems. Part 14. Synthesis of Some Bridged Propanohydrophenanthrene, ‐hydrofluorene and Polycyclic Benzopropellane Derivatives Through Intramolecular C‐Alkylations of γ,δ‐Unsaturated α′‐Diazomethyl Ketones.
Authors: RAY C. , SAHA B. , GHATAK U. R.
Published: May 2016

The access to a variety of title compounds such as the propanohydrophenanthrene (III) and the benzopropellane (IV) is achieved via intramolecular keto‐carbenoid addition of the diazopropanone (I) and subsequent regiospecific reductive cleavage of the cyclopropyl ketone (II).
ChemInform Abstract: Synthesis of Thiocarbonyl and Heterocyclic Compounds from 2‐Methylene‐1,3‐dithietanes.
Authors: OKAJIMA N. , OKADA Y.
Published: May 2016

2‐Methylene‐dithietanes such as (I) (available by literature methods) give ring‐opening reactions with amines, with alcoholate or thiolate anions, or with hydrazine affording products such as (III), (IV), or (VII).
ChemInform Abstract: Asymmetric Synthesis of (R)‐ and (S)‐4‐(Substituted Benzyl)dihydrofuran‐2(3H)‐ones: An Application of the Ruthenium‐binap Complex‐Catalysed Asymmetric Hydrogenation of Alkylidenesuccinic Acids.
Authors: SHAO L. , MIYATA S. , MURAMATSU H. , KAWANO H. , ISHII Y. , SABURI M. , UCHIDA Y.
Published: May 2016

The chiral Ru catalyst (I) leads to almost stereospecific hydrogenation of the alkylidenesuccinic acids (II).
ChemInform Abstract: The Preparation of 5‐Substituted Thieno(2,3‐b)furan‐2‐sulfonamides.
Authors: HARTMAN G. D. , HALCZENKO W. , PRUGH J. D. , WILLIAMS T. M.
Published: May 2016

The preparation of the first representative (X) of the sulfonamides specified in the title is reported.
ChemInform Abstract: Simple 3‐Hydroxythiophenes (Thiophen‐3(2H)‐ones).
Authors: HUNTER G. A. , MCNAB H.
Published: May 2016

The alkyl vinyl sulfides (I) undergo intramolecular ring‐closure upon pyrolysis, producing the thiophenones (II).
ChemInform Abstract: Synthesis and Polymerization of Ethynylthiophenes and Ethynylfurans Containing Trifluoromethyl Groups.
Authors: NISHIDA M. , FUJII S. , AOKI T. , HAYAKAWA Y. , MURAMATSU H. , MORITA T.
Published: May 2016

α‐Trifluoromethylfuran (VIIa) and its thia analogon (VIIb), prepared as outlined in the reaction scheme, are lithiated and coupled with 1,1‐dichloro‐2,2‐difluoroethene (VIII) to give the corresponding halovinyl derivatives (IX).
ChemInform Abstract: A Short Synthesis of Dibenzofurans and Dibenzothiophenes.
Authors: BLACK M. , CADOGAN J. I. G. , MCNAB H.
Published: May 2016

Flash vacuum pyrolysis of the aryl allyl(thio)salicylates (I), (III), or (VI) results in cyclization to produce the dibenzofurans(thiophenes) (II) or (IV) and (V) or a mixture of γ‐ (VII) and β‐brazan (VIII).
ChemInform Abstract: 4‐Chloromethylation of 1‐Methyl‐2‐pyrryl Ketones.
Authors: BARKER P. L. , BAHIA C.
Published: May 2016

The N‐methylsubstituted pyrroles (I) with electron‐withdrawing substituents at position C(2) undergo facile and regiospecific 4‐chloromethylation to afford the 2,4‐disubstituted pyrroles (IV).
ChemInform Abstract: Novel Bicyclo(2.2.2)lactones from a Facile Condensation of Dibenzoylethylene with Arylacetonitriles.
Authors: ATFAH M. A. , AL‐ARAB M. M.
Published: May 2016

The reaction between the carbanions generated from the arylacetonitriles (I) and trans‐dibenzoylethene (II) yields the title compounds (III) after acidic work‐up.
ChemInform Abstract: Palladium(0)‐mediated Intramolecular Lactonization of Allylic Alcohol Derivatives; Unusual Substituent Effect of the Trifluoromethyl Group on δ‐Lactone Formation.
Authors: HANZAWA Y. , ISHIZAWA S. , ITO H. , KOBAYASHI Y. , TAGUCHI T.
Published: May 2016

Cyclization reaction of the allylic carbonates (I) and subsequent deethoxycarbonylation yield a mixture of the cis‐ or trans‐disubstituted δ‐lactones (II) and (III) with predominance of the former.
ChemInform Abstract: Iodonium‐Induced Cyclisations of 5‐Silylalk‐4‐enols.
Authors: SCHAUMANN E. , KIRSCHNING A.
Published: May 2016

In contrast to the known iodo‐ and phenylseleno‐induced cyclisations of δ,ε‐unsaturated alcohols, in which the formation of furans is favoured, the cyclisation of the title compounds (I) and (III) with the I(III)‐species (IV) leads to the pyrans (II) or (V)‐(VII), respectively.
ChemInform Abstract: An Improved Procedure for Cyclization of Chalcones to Flavanones Using Celite Supported Potassium Fluoride in Methanol: Total Synthesis of Bavachinin.
Authors: HARWOOD L. M. , LOFTUS G. C. , OXFORD A. , THOMSON C.
Published: May 2016

The chalcones (I) are cyclized upon heating in the presence of potassium fluoride on Celite to give satisfactory yields of the flavanones (II), among these bavachinin (IId).
ChemInform Abstract: Synthesis and Properties of 3,9‐Dithiaperylene: A Third Isomer of Peri‐Condensed Weitz‐Type Donors Based on the Perylene Skeleton.
Authors: NAKASUJI K. , ODA A. , TOYODA J. , MURATA I.
Published: May 2016

Sulfidoacetaldehyde diethyl acetal, generated by reduction of the thiocyanate (I), undergoes substitution reaction with 1,5‐dichloroanthraquinone (II) to produce the bridged bis(2‐sulfenyl acetal) (III) which is deprotected upon treatment with conc.
ChemInform Abstract: 4,4′:2′,2′′:4′′,4′′′‐Quaterpyridyl: A Building Block for the Preparation of Novel Redox Reagents. Part 1. Preparation and Quaternization.
Authors: MORGAN R. J. , BAKER A. D.
Published: May 2016

Low yields of the quaterpyridyl (II) mentioned in the title are obtained by direct coupling of 4,4'‐bipyridine (I) upon heating in the presence of palladium on charcoal.
ChemInform Abstract: Preparation of Quinonimine Acetals via Intramolecular Condensation of Amino‐Substituted Quinone Monoketals. Anodic Oxidation Chemistry of Trifluoroacetamide Derivatives of 1,4‐Dimethoxybenzenes and 4‐Methoxyphenols.
Authors: SWENTON J. S. , SHIH C. , CHEN C.‐P. , CHOU C.‐T.
Published: May 2016

Anodic oxidation of the N‐trifluoroacetamides (I) of 2‐(4‐substituted‐2,5‐dimethoxyphenyl)ethylamine in the presence of alkali and methanol (II) produces directly the bicyclic quinonimine acetals (III).
ChemInform Abstract: Synthesis and Fluorescent Properties of a New Photostable Thiol Reagent “BACM”.
Authors: CHAURASIA C. S. , KAUFFMAN J. M.
Published: May 2016

The title compound (V) is a new tag designed to react with thiols in biological materials to form fluorescent derivatives whose emission is in the 500 nm region with good resistance to fading.
ChemInform Abstract: Synthesis of 3‐Quinuclidinyl Benzilate Derivatives.
Authors: KABALKA G. W. , MATHUR S. B. , GAI Y.‐Z.
Published: May 2016

The 4‐bromo‐ and 4‐iodo analogues (VIII) and (XIII) of 3‐quinuclidinyl benzilate (QNB) are synthesized from the 4‐halobenzophenones (I) as shown in the reaction scheme via O‐silyl cyanohydrins and benzilic acids.
ChemInform Abstract: Stereoselectivity in the Ortho Ester Claisen Rearrangements of the E and Z Isomers of γ‐(1,3‐Dioxan‐4‐yl)allyl Alcohols.
Authors: TADANO K. , MINAMI M. , OGAWA S.
Published: May 2016

The E‐hydroxypropenyl‐1,3‐dioxanes (I), prepared from 4,6‐O‐ethylidene‐D‐glucose, undergo Claisen rearrangement with triethyl orthoacetate (II) to form the products (III) and (IV) with predominance of the (R) isomer (III).
ChemInform Abstract: The Chemistry of Pyrrolic Compounds. Part 64. Intramolecular Cyclization of Butyric Acid‐Substituted Porphyrins: Petroporphyrins with Fused Seven‐Membered Ring Systems.
Authors: CLEZY P. S. , JENIE U. , PRASHAR J. K.
Published: May 2016

The preparation of a series of porphyrins such as (III), substituted with butyric acid side chains, is described and efforts to achieve the intramolecular cyclization of this substituent are discussed.
ChemInform Abstract: The Chemistry of Pyrrolic Compounds. Part 65. Intramolecular Cyclization of Porphyrins with Acetic Acid Side Chains: Hydroxy Derivatives of Deoxophylloerythroaetioporphyrin (DPEP).
Authors: CLEZY P. S. , MIRZA A. H. , PRASHAR J. K.
Published: May 2016

The intramolecular cyclization of porphyrins such as (I), substituted with an acetic acid side chain, is studied under a range of conditions, but the yield of the fused five‐membered ketone (IIa) is disappointingly low (ca.
ChemInform Abstract: Curtius Rearrangement in the 5‐Phenyl‐1,4‐benzodiazepine Series. Unprecedented Participation by an Imine Nitrogen.
Authors: BOCK M. G. , DIPARDO R. M. , CARSON K. G. , FREIDINGER R. M.
Published: May 2016

Since 5‐phenyl‐1,4‐benzodiazepines are of therapeutic interest, synthetic routes for their preparation are studied.
ChemInform Abstract: Synthesis of CNS Potentially Active Bicyclic and Tricyclic Derivatives of Pyrazolo(1,5‐a)(1,3)diazepines.
Authors: COSTANZO A. , BRUNI F. , AUZZI G. , SELLERI S. , PECORI VETTORI L.
Published: May 2016

The title compounds (III) and (IV)‐(VI) are prepared by reaction of 5‐ethylamino‐3‐phenylpyrazole (I) with the corresponding dicarboxylic acid anhydrides (yield: 1‐30%).
ChemInform Abstract: Transannular Cyclizations of 5‐(Hydroxyamino)dibenzo(a,e)cyclooctatrienes. Regioselective Synthesis of Dibenzohomotropane Analogues.
Authors: LEESON P. D. , JAMES K. , CARLING R. W. , MOORE K. W. , SMITH J. D. , MAHOMED A. A. , HERBERT R. H. , BAKER R.
Published: May 2016

Ring expansion of the 5‐(tosyloxymethyl)cycloheptenes (I) yields the two regioisomeric cyclooctatrienoles (II) and (III).
ChemInform Abstract: Synthesis and Characterization of a New Macrobicyclic (Cryptand) Siderophore Containing Three Endocyclic Hydroxamate Donor Groups.
Authors: SUN Y. , MARTELL A. E.
Published: May 2016

The key step in the synthesis of the first trishydroxamate cryptand ligand (IX) is the tripodal coupling of the tris‐O‐benzylhydroxylamine (VIII) with the tris‐acid chloride (V) under high dilution conditions.
ChemInform Abstract: Trinuclear Dithiadiaza(3.3.2)cyclophan‐enes.
Authors: SCHMIEGEL J. , FUNKE U. , MIX A. , GRUETZMACHER H.‐F. +
Published: May 2016

The title compounds, e.g. (III), which contain an azobenzene moiety bridged in the para positions only adopt Z configuration while meta‐bridged analogues exist as mixture of isomers such as (V) and (VI).
ChemInform Abstract: An Allene‐Analogous Boranylidenephosphane with B=P Double Bond: 1,1‐Diethylpropyl(2,2,6,6‐tetramethylpiperidino)boranylidenephosphane‐P‐pentacarbonylchromium.
Authors: LINTI G. , NOETH H. + , POLBORN K. , PAINE R. T.
Published: May 2016

With the use of very bulky substituents and the introduction of an additional ligand at the P atom for sterically stabilization the cleavage of the B2P2 ring in (I) in its reaction with the chromium complex (II) affords the heteroallene system (III) (space group P21/n, Z=4).
ChemInform Abstract: Synthesis of Cyclosilanylethynes.
Authors: HENGGE E. , BAUMEGGER A. , EIBL M. , HOHENESTER E. , KRATKY C.
Published: May 2016

Treatment of the new cyclohexasilanylethyne (III) with Na‐K alloy under ultrasound, followed by reaction with (I) and (V), yields the air‐stable compounds (IV) (space group P21/n, Z=2) and (VI), respectively.
ChemInform Abstract: An Efficient Phosphorylation Method Using a New Phosphitylating Agent, 3‐Diethylamino‐1,5‐dihydro‐2,4,3‐benzodioxaphosphepin.
Authors: WATANABE Y. , KOMODA Y. , EBISUYA K. , OZAKI S.
Published: May 2016

The title reagent (I) is employed in the presence of tetrazole to convert the alcohols (II) into the phosphates (III) after oxidative work‐up.
ChemInform Abstract: Preparation of ((CH3)3Si)2NSexN(Si(CH3)3)2 (x=1,2) and New Se‐S‐N‐Heterocycles.
Authors: HAAS A. , KASPROWSKI J.
Published: May 2016

The four‐membered ring (III) is prepared as a TiCl4 adduct by reaction of the bis(sulfinylamido)selenium (I) with TiCl4 (II).
ChemInform Abstract: Synthesis and Molecular Structure of the Cyclic Hexamer of 2,3‐Dimethylbutene Aluminum Monochloride.
Authors: DOHMEIER C. , MATTES R. , SCHNOECKEL H. +
Published: May 2016

2,3‐Dimethylbuta‐1,3‐diene (I) reacts with aluminum monochloride (II) in toluene (III) to form the complex (IV), which is sensitive to air and moisture.
ChemInform Abstract: Synthesis, Characterization, Oxygenation and Carbonylation of Ruthenium(III) Schiff Base Complexes.
Authors: KHAN M. M. T. , KHAN N. H. , KURESHY R. I. , BORICHA A. B. , SHAIKH Z. A.
Published: May 2016

In view of the growing interest in oxygenation and carbonylation of ruthenium(III) complexes for new water‐soluble catalysts, 20 examples of complexes such as (III), (V) and (VII) are synthesized.
ChemInform Abstract: An Oxidative Decarboxylation of 7‐Oxopodocarpic Acid Derivatives.
Authors: CAMBIE R. C. , CRAW H. M. , RICKARD C. E. F. , ROBERTSON J. D. , RUTLEDGE P. S. , VALU K. K. , WOODGATE P. D.
Published: May 2016

Treatment of the acid (Ia) or its 13‐isopropyl derivative (Ib) with excess DDQ affords the conjugated dienones (IIa) or (IIb) directly.
ChemInform Abstract: Stereocontrolled Synthesis of N,O‐Dimethyl‐γ‐amino‐β‐hydroxy Acids: Analogues of the (R)‐MeIle‐ψ(CHOMe)‐Gly Residue of the Cytotoxic Marine Pseudopeptide Dolastatin 10.
Authors: MAUGRAS I. , PONCET J. , JOUIN P.
Published: May 2016

Starting from Boc‐Val (I) the (R)‐Me‐Val‐ψ(CHOMe)‐Gly (VII) is prepared in a stereocontrolled manner.
ChemInform Abstract: A New Synthetic Equivalent of the Glutamic Acid γ‐Anion and Its Application to the Synthesis of (S)‐(+)‐γ‐Carboxyglutamic Acid.
Authors: ATTWOOD M. R. , CARR M. G. , JORDAN S.
Published: May 2016

The pyroglutamate (II), prepared in a known manner, is acylated in 3‐position to form the diester (IV).
ChemInform Abstract: Decarboxylative Carbon Acylation of Malonates with Aminoacylimidazolides Mediated by Lewis Acids.
Authors: MANSOUR T. S. , EVANS C. A.
Published: May 2016

The amino acids (I) are activated by conversion to the imidazolides (III) which react with potassium monomethyl malonate (IV) in the presence of one equivalent of a Lewis acid to form the β‐keto‐γ‐aminocarboxylates (V).
ChemInform Abstract: Solanum Alkaloids. Part 117. Synthesis of the Steroid Alkaloid Soladunalinidine and Other 5α‐Spirosolan‐3‐amines.
Authors: LE THI QUYEN LE THI QUYEN , RIPPERGER H. , SCHREIBER K.
Published: May 2016

Tomatidine (I), which is found to occur together with soladunalinidine (III) in Solanum dunalianum and assumed to be the biosynthetic precursor of (III), serves as starting material for the preparation of the title compound.
ChemInform Abstract: Transannular Reactions of 5‐Azido‐ and 5‐Nitronodibenzo(a,e)cyclooctatrienes and ‐dibenzo(a,d)cycloheptatrienes. Syntheses of Pavine and Homoisopavine Analogues.
Authors: LEESON P. D. , CARLING R. W. , JAMES K. , BAKER R.
Published: May 2016

Controlled thermolysis of the azidodibenzocyclooctatriene (III), obtained from the corresponding alcohol (I), gives the aziridine (IV) which yields the pavine alkaloid analogue (V) after regioselective reductive cleavage.
ChemInform Abstract: Hydroxylation of Prostanoids by Fungi. Synthesis of (‐)‐15‐Deoxy‐19‐(R)‐hydroxy‐PGE1 and (‐)‐15‐Deoxy‐18‐(S)‐hydroxy‐PGE1.
Authors: HOLLAND H. L. , BROWN F. M. , CHENCHAIAH P. C. , RAO J. A.
Published: May 2016

Four model compounds and two prostaglandin precursors are hydroxylated by various fungi.
ChemInform Abstract: Synthesis of (R)‐Lasiodiplodin from Polyhydroxybutyric Acid.
Authors: BRAUN M. , MAHLER U. , HOUBEN S.
Published: May 2016

(R)‐1,3‐Butanediol (Ia) is obtained by depolymerization of the biopolymer polyhydroxybutyric acid and transformed to the iodide (Ib).
ChemInform Abstract: Grain‐Boundary‐Phase Crystallization and Strength of Silicon Nitride Sintered with a YSiAlON Glass.
Authors: CINIBULK M. K. , THOMAS G. , JOHNSON S. M.
Published: May 2016

It is demonstrated that glasses of the Y‐Si‐Al‐O‐N system (a glass with nominal composition Y2.6Si3.0Al1.1O10N1.1 is used) are effective sintering aids for Si3N4 and ceramics with minimal porosity and up to 99% density can be produced.
ChemInform Abstract: The Vapors Above Molten Mixtures of CuCl2‐KCl‐LaCl3
Authors: BERG A. , SOERLIE M. , OEYE H. A.
Published: May 2016

are investigated using a spectrophotometric method.
ChemInform Abstract: The Electrochemical Behavior of Graphite and Ni‐Cr Electrodes in Sodium Polysulfide in the Absence and Presence of Hydrogen Sulfide
Authors: MAO Z. , WHITE R. E. , DANDAPANI B. , ANANI A. , SRINIVASAN S. , APPLEBY A. J.
Published: May 2016

is studied by voltammetric, chronoamperometric, and chronopotentiometric techniques in order to investigate the suitability of the sodium polysulfide melt as electrolyte for the decomposition of H2S. During cathodic polarization in sodium tetrasulfide the formation of two continuous phases on the electrodes, apparently Na2S2 and Na2S, is observed at ‐0.28 and ‐0.4 V vs.
ChemInform Abstract: Elucidation of the Initial Stages of the Oxidation of Si(111) Using Scanning Tunneling Microscopy and Spectroscopy.
Authors: LYO I.‐W. , AVOURIS PH. , SCHUBERT B. , HOFFMANN R.
Published: May 2016

Two states of adsorbed oxygen are directly imaged in the initial stages of the oxidation of Si(111).
ChemInform Abstract: Reduction of Ni2+ Cations in Y Zeolites. Part 1. Effect of Sample Pretreatment.
Authors: COUGHLAN B. , KEANE M. A.
Published: May 2016

The location of Ni2+ in the zeolite frameworks of NiNa‐Y and NiK‐Y zeolites is investigated after various stages of thermal treatment and the reduction of Ni2+ in flowing H2 atmosphere is studied as a function of H2 flow rate, reduction time, temp., sample precalcination, and NH3 pretreatment.
ChemInform Abstract: Hydrothermal Synthesis of Sodium Tungstates.
Authors: REIS K. P. , RAMANAN A. , WHITTINGHAM M. S.
Published: May 2016

It is shown that tungsten trioxide structures containing intercalated sodium ions (NaxWO3+δ) can be prepared in either the hexagonal or the cubic pyrochlore structure by careful control of the pH during hydrothermal acid hydrolysis of Na2WO4·2 H2O (pH 4.5‐1.5 adjusted with 1 M HCl, 155 °C, autogeneous pressure (∼5 atm), stainless steel acid digestion bombs, 3 d; ∼20% yield).
ChemInform Abstract: The UV‐Visible Absorption and Fluorescence of Some Substituted 1,8‐Naphthalimides and Naphthalic Anhydrides.
Authors: ALEXIOU M. S. , TYCHOPOULOS V. , GHORBANIAN S. , TYMAN J. H. P. , BROWN R. G. , BRITTAIN P. I.
Published: May 2016

UV/VIS and fluorescence properties in abs.
ChemInform Abstract: Intramolecular Charge Transfer in Donor‐Acceptor Molecules.
Authors: SLAMA‐SCHWOK A. , BLANCHARD‐DESCE M. , LEHN J.‐M.
Published: May 2016

The photophysical properties of two series of push‐pull polyenes (I)/(III)/(V)/(VII) and (II)/(IV)/(VI)/(VIII) are reported.
ChemInform Abstract: Diastereoselective Reduction of α,α‐Difluoro β‐Hydroxy Ketones to syn‐ and anti‐2,2‐Difluoro‐1,3‐diols.
Authors: KUROBOSHI M. , ISHIHARA T.
Published: May 2016

The reduction of difluoro hydroxy ketones such as (I) with DIBAL gives mixtures of syn‐ and anti‐diols, e.g. (II) + (III), in varying ratios.
ChemInform Abstract: Stereoselective Synthesis of All Four Geometric Isomers of Internal 1,3‐Butadienes by the Condensation Reaction of Aldehydes with the γ‐Trimethylsilyl‐Substituted Allylboranes.
Authors: WANG K. K. , GU Y. G. , LIU C.
Published: May 2016

Hydroboration of the allene (I) with the boranes (II) or (VIII) produces the corresponding γ‐trimethylsilyl‐substituted allylboranes which condense smoothly with aldehydes such as (III) to afford, after desilylation by either basic or acidic work‐up, the dienes (IV)‐(VII).
ChemInform Abstract: Asymmetric Catalyses. Part 55. Optically Active Deltacyclanes and Deltacyclenes by Enantioselective Catalysis.
Authors: BRUNNER H. , MUSCHIOL M. , PRESTER F.
Published: May 2016

The reaction of norbornadiene (I) with acrylonitrile in the presence of a NORPHOS‐containing catalyst demands drastic conditions and leads to diastereomeric mixtures of deltacyclanes with a small optical induction.
ChemInform Abstract: The Hydrolysis of Azetidinyl Amidinium Salts. Part 1. The Unimportance of Strain Release in the Four‐Membered Ring.
Authors: PAGE M. I. , WEBSTER P. , GHOSEZ L.
Published: May 2016

The alkaline hydrolysis of the salts (I), (V), and (VIII) is examined with respect to the effect of structural changes within the amidinium moiety.