bluuebunny/crossref_metadata_2025 huggingface dataset:
Measured cardiorespiratory fitness and self‐reported physical activity: associations with cancer risk and death in a long‐term prospective cohort study
Authors: Robsahm Trude E. , Falk Ragnhild S. , Heir Trond , Sandvik Leiv , Vos Linda , Erikssen Jan E. , Tretli Steinar
Published: May 2016

Physical activity is inversely associated with risk of some cancers. The relation with cancer‐specific death remains uncertain. Mainly, studies on relationships between physical activity and cancer are based on self‐reported physical activity (SPA). Hereby, we examined whether measured cardiorespiratory fitness (CRF) is associated with cancer risk, mortality, and case fatality. We also describe relationships between SPA and these outcomes, and between CRF and SPA. A cohort of 1997 healthy Norwegian men, aged 40–59 years at inclusion in 1972–75, was followed throughout 2012. At baseline, CRF was objectively measured. SPA (leisure time and occupational) was obtained through a questionnaire. Relationships between CRF or SPA, and the outcomes were estimated using Cox regression, adjusted for age, body mass index (BMI), and smoking. Pearson correlation coefficients evaluated agreements between CRF and SPA. During follow‐up, 758 men were diagnosed with cancer and 433 cancer deaths occurred. Analyses revealed lower cancer risk (Hazard ratio [HR] 0.85, 95% confidence intervals [CI]: 0.68–1.00), mortality (HR 0.68, 95% CI: 0.53–0.88), and case fatality (HR 0.74, 95% CI: 0.57–0.96), in men with high CRF compared to low CRF. Light leisure time SPA was associated with lower cancer risk (HR 0.70, 95% CI: 0.56–0.86) and mortality (HR 0.64 95% CI: 0.49–0.83), whereas strenuous occupational SPA was associated with higher risks (HR 1.42, 95% CI: 1.13–1.78 and HR 1.45, 95% CI: 1.09–1.93). Correlations between CRF and SPA were 0.351 (P < 0.001) and −0.106 (P < 0.001) for leisure time and occupational SPA, respectively. A high midlife CRF may be beneficial for cancer risk, cancer mortality, and case fatality.
Stratifying prostate cancer patients by relative lymph node involvement: population‐ and modeling‐based study
Authors: Poleszczuk Jan T. , Johnstone Peter A. , Enderling Heiko
Published: May 2016

It is estimated that about 10% of new prostate cancer (PCa) cases are lymph node‐positive (LN+). We have previously discussed the role of the inflection point (IP) of an inverse Gompertzian survival curve as a surrogate for disease incurability. In this study, we aimed to stratify curability of different patient cohorts with pathologically positive lymph nodes through modeling survival curves by different percentages of LN involvement (%LN+) postoperatively and calculating associated IPs. From the Surveillance, Epidemiology, and End Results (SEER) database, we selected LN+ PCa patients undergoing radical prostatectomy. Modeling of relative survival curves using inverse Gompertzian kinetics for increasing value of maximal %LN+ involvement allowed stratification of cohort into groups with <10%, 10–40%, and greater or equal to 40% of LN+ out of all LNs sampled. Data were retrieved for 5903 patients. For the entire cohort, relative survival was 96%, 87%, and 76% at 5, 10, and 15 years, respectively. For %LN +, <10% the IP was about 27 years postoperatively. Patients with 10–40% LN+ had an IP at about 10 years; for those with more than 40% LN+, the IP was 7 years. A 10‐year relative survival decreases from 97% for <10% LN+ to 71% for more than 40% LN+. While better therapies for LN + PCa are badly needed, this patient cadre is not homogenous and should be stratified by %LN+ in future clinical trials.
Torsion of left main bronchus during general anesthesia for posterior instrumented spinal fusion
Authors: Arumainathan Renuka , Morris Stephen A. C. , George Marina
Published: May 2016

Key Clinical Message

Pulmonary function tests such as flow‐volume loops and reconstructive radiological imaging may aid the detection of large airway obstruction prior to corrective surgery for severe scoliosis. Intraoperative use of halo‐gravity traction may help to reduce the severity of the scoliosis, and thus the extrinsic compression or torsion of the airways.
Charged versus Neutral Hydrogen‐Bonded Complexes: Is There a Difference in the Nature of the Hydrogen Bonds?
Authors: Alkorta Ibon , Mata Ignasi , Molins Elies , Espinosa Enrique
Published: May 2016

A theoretical study on some carboxylic acid dimers formed by positively or negatively charged molecules has been carried out by using DFT methods. The resulting dimers possess either a charge of +2 or −2. In addition, the corresponding neutral complexes have also been considered. The electron density distribution described by the atoms in molecules and the natural bond orbital methods, as well as the electric field maps of the systems, have been analyzed and compared without finding significant differences between the neutral and ionic complexes. The interaction energy along the dissociation path of the charged dimers shows both a local minimum and a local maximum, defining a stability region between them. When this energetic profile is recalculated by removing the repulsion between the charged groups, it resembles to those of the neutral molecules. Hence, the characteristics of the charged dimers are similar to those of the neutral ones: the addition of a repulsion term for the charged groups permits to retrieve the energetic profiles dependence with the distance in the charged system. The interacting quantum atom (IQA) method has been used to calculate the interaction energy terms, including the classic Coulombic term between the whole molecules and the corresponding of the carboxylic acid groups. The IQA results show repulsive electrostatic interactions when the whole molecules are considered in the ionic complexes, but attractive ones between the carboxylic groups in both neutral and ionic complexes.
An Easily Accessible Self‐Healing Transparent Film Based on a 2D Supramolecular Network of Hydrogen‐Bonding Interactions between Polymeric Chains
Authors: Roy Nabarun , Tomović Željko , Buhler Eric , Lehn Jean‐Marie
Published: May 2016

Self‐healing polymers hold great promise for the future, enhancing in particular the longevity of polymeric materials. We describe a self‐healing covalent polymer, presenting an extensive array of hydrogen‐bonding sites based on the combination of urea, urethane, and bis‐acyl‐hydrazine units. Solvent‐cast thin‐films prepared by polycondensation of a commercially available dihydrazide and a diisocyanate prepolymer exhibited excellent room temperature autonomous healing with almost full recovery of mechanical properties when two parts of a cut film were overlapped and gently pressed together. This autonomous healing upon damage may be attributed to the supramolecular dynamics of multiple lateral inter‐chain hydrogen‐bonding interactions between the polymer chains. The solid‐state structure of a model compound incorporating the same structural backbone corroborates the existence of an extensive two‐dimensional supramolecular hydrogen‐bonding network.
ChemInform Abstract: Sc3Ni2Si3 with Hf3Ni2Si3‐Type Structure, an Intergrowth of CrB‐, ThCr2Si2‐ and W‐Type Slabs.
Authors: ZHAO J. T. , PARTHE E.
Published: May 2016

Sc3Ni2Si3, one of the 15 ternary compounds previously observed in the Sc‐Ni‐Si phase diagram, is prepared by arc melting of the elements under argon atmosphere.
ChemInform Abstract: Glass Strengthening by Polymer‐Derived Ceramic Coatings.
Authors: BLUM Y. D. , PLATZ R. M. , CRAWFORD E. J.
Published: May 2016

It is demonstrated that polysilazane‐derived ceramic coatings of 0.1‐4 μm thickness increase the rupture strength of glass rods from 179 MPa to up to 414 MPa.
ChemInform Abstract: Stereoselective Synthesis of Conjugated 2,4‐Alkadienoates via the Palladium‐Catalyzed Cross‐Coupling of 1‐Alkenylboronates with 3‐Bromo‐2‐alkenoates.
Authors: YANAGI T. , OH‐E T. , MIYAURA N. , SUZUKI A.
Published: May 2016

(2E,4E)‐, (2Z,4E)‐ and (2E,4Z)‐2,4‐Alkadienoates can be synthesized in high yields by cross‐coupling of alkenes with alkenyl boron compounds in the presence of a Pd‐catalyst, Na2CO3 or K2CO3 and MeOH or EtOH.
ChemInform Abstract: Intramolecular Diels‐Alder Reaction of Thioaldehydes.
Authors: SEGI M. , TAKAHASHI M. , NAKAJIMA T. , SUGA S. , SONODA N.
Published: May 2016

The ω‐bromo acetals (III) and the 2,4‐dienyl acetates (XI), both prepared as shown in the reaction scheme, are coupled in the presence of dilithium tetrachlorocuprate to yield the long‐chain dienals (XII) after acidic deacetalization.
ChemInform Abstract: Diastereoselectivity in the Cyclization of 1‐(2‐(Benzyloxymethyl)‐3‐butenyl)‐5‐ethoxy‐2‐pyrrolidinones.
Authors: ZONJEE J. N. , DE KONING H. , SPECKAMP W. N.
Published: May 2016

Upon treatment with formic acid, the pyrrolidones (VI) ((VIb)‐(VId) are obtained from (IVb)‐(IVd) together with their 5‐ethoxy isomers) cyclize to give indolizinones.
ChemInform Abstract: (3.3) Sigmatropy Within 1‐Vinyl‐2‐alkenyl‐7,7‐dimethyl‐exo‐norbornan‐2‐ols. The First Atropselective Oxyanionic Cope Rearrangement.
Authors: PAQUETTE L. A. , PEGG N. A. , TOOPS D. , MAYNARD G. D. , ROGERS R. D.
Published: May 2016

The anionic oxy‐Cope rearrangement of the readily available title compounds (I) is shown to occur rapidly at room temp. exclusively via the respective endo‐chair transition states.
ChemInform Abstract: Asymmetric Induction in the Wittig‐Still Rearrangement of Ethers Containing an Allylic Stereocenter ‐ Diastereocontrol by Allylic Oxygen.
Authors: PRIEPKE H. , BRUECKNER R. +
Published: May 2016

A variety of stannylated allyl ethers such as (I) are prepared and subjected to the Still variant of the Wittig rearrangement.
ChemInform Abstract: Hydroxylation of Alkanes by Hydrogen Peroxide Catalyzed by Iron Complexes in the Presence of Pyridine or 2,2′‐Bipyridine.
Authors: NAM W. , VALENTINE J. S.
Published: May 2016

The cycloalkanes (I) are oxidized by hydrogen peroxide in the presence of an iron complex, zinc powder, acetic acid, and bipyridine to give the alcohols (II) and the ketones (III).
ChemInform Abstract: A Novel Synthesis of Mono‐ and Disubstituted (1‐Cycloalkenyl)acetic Acid Derivatives via Ionization/Elimination of β‐Lactones.
Authors: BLACK T. H. , EISENBEIS S.
Published: May 2016

Coupling of the cycloalkanones (I) with the dilithium salts of the carboxylic acids (II) gives the β‐hydroxycarboxylic acids (III).
ChemInform Abstract: Experiments Towards the Generation of 1,5‐ and 2,3‐Didehydroquadricyclanes.
Authors: HEYWANG U. , SZEIMIES G.
Published: May 2016

The title species (I), (II) cannot be generated by the following experiments: The bromination products (IVa + b) from the readily accessible quadricyclane derivative (III) are treated with the base (V) generating the dehydro species (VI) rather than the required (IX) corresponding to (I); main components of the final product mixture (55%) are the compounds (VII) and (VIII).
ChemInform Abstract: Convenient Synthesis of N‐Aryl‐2‐hydroxysuccinimides and Characterization of Their Hydrolysis Products.
Authors: SHIH H. , RANKIN G. O.
Published: May 2016

The chloralide (I), prepared from chloral hydrate and D,L‐malic acid, is converted to the title compounds (III) by treatment of the acid chloride with the anilines (II).
ChemInform Abstract: Enantioselective Synthesis of (7aS)‐(‐)‐2,3,7,7a‐Tetrahydro‐7a‐phenylthio‐1H‐indene‐1,5(6H)‐dione and (8aS)‐(+)‐3,4,8,8a‐Tetrahydro‐8a‐phenylthio‐1,6(2H,7H)‐naphthalenedione.
Authors: KWIATKOWSKI S. , SYED A. , BROCK C. P. , WATT D. S.
Published: May 2016

The cyclic 1,3‐diketones (I) are subjected to sulfenylation and Michael addition to yield the prochiral triketones (V) which are cyclized in the presence of (R)‐proline, forming the bicyclic hydroxy dione (VI).
ChemInform Abstract: Asymmetric 1,2‐ and 1,3‐Inductions and Solvent Dependence Found in Chelate‐Controlled Additions of Grignard Reagents and Cuprates to Chiral β‐Formyl Esters. Stereoselective Synthesis of γ‐Lactones.
Authors: JANOWITZ A. , KUNZ T. , HANDKE G. , REISSIG H.‐U.
Published: May 2016

The β‐formylcarboxylates (I) and (IX) are cyclized upon treatment with lithium dibutylcuprate (II), the Grignard compounds (IV), (V), or allyltrimethylsilane (VIII) to yield mainly the trans‐isomers of the γ‐lactones (III), (VII), or (X).
ChemInform Abstract: Homologation of the Side Chain of 2‐Nitrotoluene. Synthesis of a Tryptophan Precursor.
Authors: TANAKA H. , MURAKAMI Y. , TORII S.
Published: May 2016

The enal (II) leads to the indolylpropionate (IV) via Michael addition and subsequent hydrogenative cyclization.
ChemInform Abstract: Synthesis of 2‐Aryl‐3‐cyanophthalimidines and Related Analogs.
Authors: BAUM J. S. , STAVESKI M. M.
Published: May 2016

The 2‐methoxycarbonylbenzylidenanilines (III), prepared from the aldehyde (I) and the aromatic amines (II), are treated with potassium cyanide (IV) in an acidic solution to generate the corresponding HCN adducts (V) which are directly cyclized in most cases, forming the cyanoisoindolinones (VI).
ChemInform Abstract: Amberlyst‐15 as a Convenient Catalyst for Chemoselective Thioacetalization.
Authors: PERNI R. B.
Published: May 2016

The aldehydes (I) are treated with ethane‐1,2‐dithiol (II) in the presence of the sulfonic acid ion‐exchange resin Amberlyst‐15 at room temperature to form the thioacetals (III).
ChemInform Abstract: Amino Acids as Chiral Building Blocks: Dihydrothiazole Derivatives (δ4‐Thiazoline) Made from Cysteine.
Authors: SEEBACH D. , JEANGUENAT A. , SCHMIDT J. , MAETZKE T.
Published: May 2016

Pivalaldehyde (I) reacts with L‐cysteine hydrochloride (II) to give the 1,3‐thiazolidinium chloride (III) which is N‐acylated with benzyl chloroformate (IV) to give (V).
ChemInform Abstract: Heterocycles. Part 24. Synthesis of Optically Pure 2,3‐trans‐5,7,3′,4′,5′‐Pentahydroxyflavan‐3,4‐diols and Comparison with Naturally Occurring Leucodelphinidins.
Authors: ONDA M. , LI S. , LI X. , HARIGAYA Y. , TAKAHASHI H. , KAWASE H. , KAGAWA H.
Published: May 2016

The acetophenone (I) reacts with the aldehyde (II) to give the chalcone (III).
ChemInform Abstract: Annulation of Pyridine to Indole by a Tandem Aza‐Wittig/Electrocyclization Strategy: Synthesis of Pyrido(2,3‐b)indoles.
Authors: MOLINA P. , FRESNEDA P. M.
Published: May 2016

Coupling of the (3‐formylindolylimino)phosphorane (I) with nitromethane (II) gives the nitroethenyl derivative (III) which is cyclized with the isocyanates (IV), forming the pyridoindoles (V).
ChemInform Abstract: Pyridazine Compounds. Part 25. Reinvestigation of Acylation of Pyridazinylhydrazones.
Authors: SZILAGYI G. , MATYUS P. , SOHAR P.
Published: May 2016

Different pathways are discovered for the title reaction which depends on the 6‐substituent and reaction conditions (see (III) ← (I) + (II) → (VIII)), but is also influenced by the hydrazone moiety (see (IX) + (X) → (XI)).
ChemInform Abstract: Stereoselective Cycloadditions of Chiral Acylnitroso Compounds.
Authors: MILLER A. , PATERSON T. MCC. , PROCTER G.
Published: May 2016

Oxidation of the hydroxamic acids (I) and (V) in the presence of the cyclic 1,3‐dienes (II) and (VIII) results in cycloaddition reaction, producing predominantly the bicyclic 1,2‐oxazines (III), (VI), and (IX) respectively.
ChemInform Abstract: The Unusual Course of the Reactions of Phosphorus Pentachloride with 1‐Phosphorylated Alcohols and Acetals.
Authors: GAZIZOV M. B. , KHAIRULLIN R. A.
Published: May 2016

The phosphonates (I) react with phosphorus pentachloride (II) in benzene to produce the phosphorodichloridates (III).
ChemInform Abstract: Iron‐Iridium Mixed‐Metal Carbonyl Clusters. Part 2. Synthesis and Chemical Behavior of the Tetranuclear Complexes (FeIr3(CO)12)‐, (Fe2Ir2(CO)12)2‐, (Fe2Ir2H(CO)12)‐, and (Fe3Ir(CO)13)‐. Solid‐State Structures of (N(PPh3)2)(FeIr3(CO)12), (NEt4)2(Fe2Ir2(CO)12), and (PPh4)(Fe2Ir2(CO)12(μ3‐Au(PPh3))).
Authors: DELLA PERGOLA R. , GARLASCHELLI L. , DEMARTIN F. , MANASSERO M. , MASCIOCCHI N. , SANSONI M.
Published: May 2016

(IIIa), obtained by degradation of (I) (or alternatively by reduction of an equimolar mixture of Fe(CO)5 and Ir4(CO)12 in methanolic NaOH under CO), crystallizes as N(PPh3)2 salt in P21/c with Z=4.
ChemInform Abstract: Synthesis of Novel Diplatinum Complexes Containing the (Diphenylphosphino)cyclopentadienyl Ligand.
Authors: ANDERSON G. K. , LIN M. , CHIANG M. Y.
Published: May 2016

The novel organoplatinum dimers (III) are characterized by their 1H, 13C, 31P and 195Pt NMR spectra and X‐ray of (IIIb) (space group P1, Z=2).
ChemInform Abstract: The Pictet‐Spengler Reaction of Nb‐Hydroxytryptamines and Cysteinals. Part 1. Isolation of Tetracyclic Intermediates and Formation of Optically Active Nb‐Hydroxy‐tetrahydro‐β‐carbolines.
Authors: LIU J. , NAKAGAWA M. , HINO T.
Published: May 2016

In connection with the total synthesis of the eudistomins, Nb‐hydroxy‐tetrahydro‐β‐carbolines are required.
ChemInform Abstract: Antitumor Agents. Part 2. Asymmetric Synthesis of (S)‐Camptothecin.
Authors: EJIMA A. , TERASAWA H. , SUGIMORI M. , TAGAWA H.
Published: May 2016

A new approach to ring E is developed in a synthesis of racemic camptothecin.
ChemInform Abstract: An Improved Method for the Synthesis of Highly Substituted Alkyl Phosphates Including Nucleoside 5′‐Phosphates.
Authors: COE D. , FLITSCH S. L. , HILPERT H. , LIEBSTER M. , ROBERTS S. M. , TURNER N. J.
Published: May 2016

The β‐hydroxy acetals (I) and the nucleosides (V) are coupled with the di‐tert‐butyl phosphoramidite (II) and subsequently oxidized with MCPBA to produce the phosphates (III) and (VI).
ChemInform Abstract: Regio‐ and Stereoselective Construction of Anthracyclinones: Total Synthesis of (‐)‐γ‐Rhodomycinone.
Authors: FUJIOKA H. , YAMAMOTO H. , KONDO H. , ANNOURA H. , KITA Y.
Published: May 2016

The acetoxymethoxyhomophthalic anhydride (I) and the tetrahydronaphthoquinone (II), which is prepared from a dimethoxytetralone acetal, undergo cyclization to form the tetracyclic quinone (III).
ChemInform Abstract: An ESR Study of Surface Properties of MgO and Metal‐Ion‐Modified MgO
Authors: ZHANG G. , TANAKA T. , YAMAGUCHI T. , HATTORI H. , TANABE K.
Published: May 2016

performed using NO as a probe molecule shows that the addition of guest ions such as Na+, Al3+, and Zr4+ causes a great increase of the number of NO22‐ radicals formed at strongly basic sites.
ChemInform Abstract: Uranium(IV) Hydrolysis Constants and Solubility Product of UO2·xH2O(am).
Authors: RAI D. , FELMY A. R. , RYAN J. L.
Published: May 2016

The solubility of amorphous UO2·xH2O (I) is studied in dilute solutions in the pH range 2‐12 using Fe powder and Eu2+ to minimize the possibility of oxidation of U(IV) to U(VI) during the experiments.
ChemInform Abstract: A Temperature‐Programmed Sulfiding Study of NiO‐WO3/Al2O3 Catalysts.
Authors: SCHEFFER B. , MANGNUS P. J. , MOULIJN J. A.
Published: May 2016

The sulfided form of NiO‐WO3/Al2O3 catalysts is applied for hydrotreating and hydrocracking reactions.
ChemInform Abstract: Tandem 1,5‐Hydrogen Transfer and Decarbonylation in the Flash Vacuum Pyrolysis of 5‐Vinyl‐3‐methyl‐1,2‐dioxane.
Authors: BLOODWORTH A. J. , CURTIS R. J.
Published: May 2016

Treatment of the unsaturated hydroperoxide (I) with mercury(II) nitrate results in the formation of cycloperoxymercurials which are demetalated by reduction with sodium borohydride in the presence of a base to give the 1,2‐dioxanes (II).
ChemInform Abstract: Novel Cyclooligomerization of Nickel Carbenoids: A Simple and Efficient Synthesis of Radialenes.
Authors: IYODA M. , MIZUSUNA A. , KURATA H. , ODA M.
Published: May 2016

Cyclooligomerization of the 1,1‐dihaloalkenes (I), (VII), and (X) is achieved by treatment with activated nickel, producing the radialenes (IV) ‐ (VI), (VIII) and (IX), or (XII).
ChemInform Abstract: The Mercury(II)‐Catalyzed, One‐Pot Oxidation of Terminal Alkynes by Sodium Perborate in Acetic Acid.
Authors: REED K. L. , GUPTON J. T. , MCFARLANE K. L.
Published: May 2016

The reaction mentioned in the title converts the alkynes (I) into the α‐acetoxy ketones (III).
ChemInform Abstract: Selective Reduction of Aryl Halides and α,β‐Unsaturated Esters with Sodium Borohydride‐Cuprous Chloride in Methanol and Its Application to Deuterium Labeling.
Authors: NARISADA M. , HORIBE I. , WATANABE F. , TAKEDA K.
Published: May 2016

The authors developed a reducing system consisting of NaBH4 and Cu2Cl2 in methanol.
ChemInform Abstract: Asymmetric Diels‐Alder Reaction Using (S)‐Pyroglutamic Acid Derivatives as Chiral Dienophiles.
Authors: IKOTA N.
Published: May 2016

Condensation of the sodium salt of (S)‐5‐(methoxymethoxymethyl)‐2‐pyrrolidinone (I) with acryloyl chloride (IIa) and E‐crotonyl chloride (IIb) produces the corresponding N‐acyl derivatives (III).
ChemInform Abstract: Synthesis and Some Properties of 2‐Hydroxy‐6‐methyl‐2‐phenyl‐1,1,1‐trifluoro‐5‐hepten‐4‐one.
Authors: SOSNOVSKIKH V. YA. , OVSYANNIKOV I. S.
Published: May 2016

Aldol addition of mesityl oxide (I) with trifluoroacetophenone (II) produces the title compound (IIIa) which is cyclized in boiling trifluoroacetic acid to give the tetrahydropyrone (IV).
ChemInform Abstract: One‐Pot Synthesis of Acetylenic Sulfones from Chloro(phenylsulfonyl)methanephosphonate.
Authors: LEE J. W. , KIM T. H. , OH D. Y.
Published: May 2016

Diethyl chloro(phenylsulfonyl)methylphosphonate (I) is employed in the Wittig‐Horner olefination of the benzaldehydes (II), yielding the intermediate chlorostyryl phenyl sulfones (III).
ChemInform Abstract: A Novel Formation and Photochemical Reaction of 3,3‐Di‐tert‐butyl‐3′,3′‐diphenyl(1,2)dithiolo(5,4‐d)(1,2)dithiole.
Authors: TOKITOH N. , IMAI S. , GOTO M. , ANDO W.
Published: May 2016

The butatriene (I) is heated with sulfur (II) under various conditions to form the bicyclic tetrasulfide (III).
ChemInform Abstract: Photochemical (2 + 2)‐ and (4 + 2)Cycloadditions of N‐Methylphthalimide to Allyltrimethylsilane.
Authors: KUBO Y. , TANIGUCHI E. , ARAKI T.
Published: May 2016

Photolysis of N‐methylphthalimide (I) with allyltrimethylsilane (II) at a wavelength of about 310 nm yields the (4 + 2)cycloadducts (III) and (IV), together with the coupling product (V).
ChemInform Abstract: Thiophosphorylated 3(5)‐Amino‐4‐cyano(ethoxycarbonyl)pyrazoles.
Authors: RAZVODOVSKAYA L. V. , PUTSYKINA E. B. , ERIKOVA M. V. , KISELEVA N. A. , VASIL'EV A. F. , GRAPOV A. F. , MEL'NIKOV N. N.
Published: May 2016

Thiophosphorylation of the aminopyrazoles (I) with the thiophosphonic (thiophosphoric) chlorides (II) produces mainly the 3‐amino‐1‐thiophosphorylpyrazoles (III).
ChemInform Abstract: Synthesis and Chemical Behavior of 12‐Substituted Dibenz(c,f)(1,5)azastibocine and Dibenz(c,f)(1,5)azabismocine Derivatives: Evidence of 10‐Pn‐4 Type Hypervalent Interaction.
Authors: OHKATA K. , TAKEMOTO S. , OHNISHI M. , AKIBA K.
Published: May 2016

Methyldi(o‐bromobenzyl)amine (I) is lithiated and then treated with the pnictogen trichlorides (II) to give the dibenzo‐fused heterocycles (III), which undergo substitution reactions, forming the derivatives (IV), (VI), or (VIII).
ChemInform Abstract: Synthesis, Redox Properties, and Reactivity of a Novel Family of Electron‐Rich Vinylidene and Vinylphosphonium Complexes of Rhodium(I).
Authors: BIANCHINI C. , MELI A. , PERUZZINI M. , ZANOBINI F. , ZANELLO P.
Published: May 2016

The vinylidene complexes (II) react with nucleophiles such as NEt3, MeLi, or PhLi via deprotonation to restore the parent σ‐acetylide compounds.
ChemInform Abstract: 4‐Hydroxybutyric Acid (and Analogues) Derivatives of D‐Glucosamine.
Authors: DARDOIZE F. , GOASDOUE C. , GOASDOUE N. , LABORIT H. M. , TOPALL G.
Published: May 2016

γ‐Hydroxybutyric acid (GHB) is known to act as a neuromodulator or neurotransmitter in the CNS.
ChemInform Abstract: Facile Synthesis of 8‐Benzoylthio‐2,6‐methano‐3‐benzazocines and 3‐Benzoylthiomorphinans Having Small‐Ring Substitutents.
Authors: HORI M. , IWAMURA T. , MORITA T. , IMAI E. , OJI H. , KATAOKA T. , SHIMIZU H. , BAN M. , NOZAKI M. , NIWA M. , FUJIMURA H.
Published: May 2016

Regioselective chlorosulfonation of the 2,6‐methano‐3‐benzazocines (I) leads to the formation of the sulfonyl chlorides (III) which are reduced with Zn/H2SO4 and subsequently acylated with benzoyl chloride (IV) to give the 8‐benzoylthio derivatives (V).
ChemInform Abstract: Intra‐ and Intermolecular Nucleophilic Phosphorus‐Sulfur Bond Cleavage. The Reaction of Fluoride Ion with O‐Aryl‐O,S‐dialkylphosphorothioates, and the Degradation of Phosphorothioate Linkage in di‐Ribonucleotides by the Vicinal 2′‐Hydroxyl Group.
Authors: SUND C. , CHATTOPADHYAYA J.
Published: May 2016

On treatment with Bu4NF the title dialkylphosphorothioates of type (I) and (III) undergo scission of the phosphorus‐sulfur bond to form phosphoromonofluoridates, e.g. (II) and (IV).
ChemInform Abstract: Preparation of Chiral, Highly Functionalized Cyclopentanes and Its Application to the Synthesis of Prostaglandin E1.
Authors: OKANO K. , SUEMUNE H. , SAKAI K.
Published: May 2016

Base‐catalyzed cyclization of the 1,4‐diketone (I) and subsequent oxidation during chromatography on silica gel produce enantiomeric mixtures of the regioisomeric cyclopentenones (II) and (III).
ChemInform Abstract: The Superconductivity of the Series MxSnMo6S7.0 (M: Y, Ag, In, Pb, Bi).
Authors: WAKIHARA M. , SATOH K. , HINODE H. , TANIGUCHI M.
Published: May 2016

The relationships between doping element, doping level, lattice parameters, and Tc are studied.
ChemInform Abstract: Spectroscopic Studies of Molybdate Species Deposited on a Nb2O5 Support
Authors: JIN Y. S. , AUROUX A. , VEDRINE J. C.
Published: May 2016

(XRD, Raman, FTIR, diffuse reflectance, ESCA, FABMS‐SIMS) show that the nature and structure of surface molybdate species mainly depend on the Mo loading and to a lesser extent on the preparation method (impregnation at pH 0.5 and 5.5, equilibrium adsorption methods).
ChemInform Abstract: Open‐Chain Polyamine Ligands with More Rigid Double Connecting Bridges. Study of Their Metal Ion Selectivities by Molecular Mechanics Calculation, Crystallography, and Thermodynamics.
Authors: HANCOCK R. D. , NGWENYA M. P. , EVERS A. , WADE P. W. , BOEYENS J. C. A. , DOBSON S. M.
Published: May 2016

The ligands (I)‐(III) are of interest in their potential resemblance to the corresponding tetraaza macrocycles.
ChemInform Abstract: Complete Control of the Rearrangement Modes of Enolates of α‐Allyloxy Ketones: Reversal from the (3,3)Claisen to the (2,3)Wittig Pathway by the Use of the Metalated N,N‐Dimethylhydrazones.
Authors: LUENGO J. I. , KOREEDA M.
Published: May 2016

(2,3)Wittig rearrangement of the hydrazones (III) and (VII), obtained from the corresponding ketones (I) and (VI) with N,N‐dimethylhydrazine (II), is induced by treatment with potassium hydride to result in the formation of the α‐hydroxy hydrazones (IV) and (VIII) with predominance of the E‐stereoisomers.
ChemInform Abstract: Stereocontrolled Reduction of 2‐(p‐Tolylsulfinyl)cycloalkanones Under Basic Conditions: π‐Facial Selection in Cyclic Systems Directed by a Chiral Side Chain.
Authors: OGURA K. , ISHIDA M. , FUJITA M.
Published: May 2016

Reduction of diastereomeric mixtures of title compounds such as (I) and (II) with NaBH4 under basic conditions is accompanied by rapid epimerization at C‐2. Under the conditions employed, the π‐facial selectivity is directed by the side chain chirality and, among four possible isomers of the corresponding cycloalkanols (III)‐(VI), one isomer (III) is given with high selectivities up to 85%.
ChemInform Abstract: Reduction with Metal Borohydride‐Transition Metal Salt System. Part 1. Reduction of Aromatic Nitro Compounds with Potassium Borohydride‐Copper(I) Chloride.
Authors: HE Y. , ZHAO H. , PAN X. , WANG S.
Published: May 2016

The nitrobenzenes (I) are reduced with KBH4/Cu2Cl2 to yield the corresponding anilines (II).
ChemInform Abstract: Symmetrical and Unsymmetrical Coupling of Alkyl Halides Mediated by Grignard Reaction.
Authors: HERENDEEN B. L. , BHATIA S. K. , SINGH A.
Published: May 2016

The coupling of alkyl and aryl halides such as (I) or (V) to give symmetrical, e.g. (II), or asymmetrical products, e.g. (III) or (VI), is performed in the presence of magnesium and catalytic amounts of sodium peroxide.
ChemInform Abstract: Primary Polyfluoroallylic Alcohols. Preparation and Isomerization into 2‐Fluoroacrylic Acid Fluoride and 1‐Fluorovinyl Ketones.
Authors: NGUYEN T. , WAKSELMAN C.
Published: May 2016

Addition of two equivalents of methyllithium (II) to the tetrafluoropropanol (I) gives the polyfluoroallylic alcohols (III) and (IV) after hydrolytic work‐up.
ChemInform Abstract: Synthesis of Ureidocarboxylic Acids and Hydantoins by Reaction of Aminocarboxylic Acids or Their Esters with Trichloroacetamides.
Authors: ATANASSOVA I. A. , PETROV J. S. , BALABANOVA A. N. , MOLLOV N. M.
Published: May 2016

Coupling of the trichloroacetanilides (I) with the amino acids or ester (II) yields the ureidocarboxylic acids (IIIa) ‐ (IIIc) or the related carboxylate (IIId).
ChemInform Abstract: Organic Chemistry Without Solvent. Improvements to the One‐Step Preparation of Dibenzyl Sulfones.
Authors: LOUPY A. , SANSOULET J. , HARRIS A. R.
Published: May 2016

The reaction of benzyl bromide (I) with sodium dithionite (II) or sodium formaldehydesulfoxylate (VII) to give dibenzyl sulfone (III) is optimized.
ChemInform Abstract: Reaction of 1‐Lithio(phenylsulfinyl)cyclopropane with Electrophiles: An Alternative Synthesis of 1‐Alkyl‐ and 1‐(1‐Hydroxyalkyl)(phenylsulfinyl)cyclopropanes.
Authors: POHMAKOTR M. , SITHIKANCHANAKUL S.
Published: May 2016

Cyclopropyl phenyl sulfoxide (I) is lithiated to give the organolithium compound (III) mentioned in the title.
ChemInform Abstract: An Optically Active Terpenic Synthon for δ9‐Cannabinoids: Synthesis of (‐)‐11‐Hydroxy‐δ9‐tetrahydrocannabinol (THC) and Its 1′,1′‐Dimethylheptyl Analogue.
Authors: SIEGEL C. , GORDON P. M. , RAZDAN R. K.
Published: May 2016

The synthesis of (‐)‐11‐hydroxy‐Δ9‐tetrahydrocannabinol (VIIa) and its 1',1'‐dimethylheptyl analogue (VIIb) is performed as outlined in the reaction scheme.
ChemInform Abstract: Regio‐ and Stereoselectivity of Intramolecular Nitrile Oxide Cycloaddition to Furan.
Authors: ANNUNZIATA R. , CINQUINI M. , COZZI F. , RAIMONDI L.
Published: May 2016

The 2‐(nitroalkylsulfenyl)furans (VIII) and (XV), prepared via the lithium sulfide (III) as shown in the reaction scheme, undergo intramolecular cycloaddition reaction of the corresponding nitrile oxides to form the fused oxazolines (XI) or (XVI).
ChemInform Abstract: Pictet‐Spengler Reactions in Aprotic Media. Stereospecificity in the Pictet‐Spengler Reaction.
Authors: SANDRIN J. , HOLLINSHEAD S. P. , COOK J. M.
Published: May 2016

Pictet‐Spengler reaction of the racemic tryptophan methyl esters (±)‐(I) with the acetals (II) leads to the formation of cis/trans mixtures of the tetrahydropyrido(3,4‐b)indoles (III).
ChemInform Abstract: 1,3‐Dipolar Cycloaddition of Nitrile Oxides with 1,4‐Dihydropyridines and Conformational Analysis of Isoxazolo(5,4‐b)pyridines.
Authors: TAYLOR M. D. , HIMMELSBACH R. J. , KORNBERG B. E. , QUIN J. III , LUNNEY E. , MICHEL A.
Published: May 2016

1,3‐Dipolar cycloaddition of the nitrile oxides (VI) with the 1,4‐dihydropyridines (V), obtained from o‐(trifluoromethyl)benzaldehyde (I) as shown in the reaction scheme, leads to the formation of the tetrahydroisoxazolo(5,4‐b)pyridines (VII).
ChemInform Abstract: Unsaturated Sulfinamides. Part 6. Substituted 4‐(1′,2′‐Alkadienesulfinyl)morpholines. Preparation and Hydrolytic Desulfinylation into the Corresponding Alkynes.
Authors: BAUDIN J.‐B. , JULIA S. A. , WANG Y.
Published: May 2016

The propargylic alcohol (I) reacts with morpholine‐4‐sulfenyl chloride (II) to give the allenesulfinylmorpholines (III) which are hydrolyzed to form alkynes, e.g. (IV).
ChemInform Abstract: 1‐(Acyloxy)alkyl Isocyanates. Part 3. Reactions with ortho‐Diphenols and Diols.
Authors: VOVK M. V. , DOROKHOV V. I. , SAMARAI L. I.
Published: May 2016

The reaction between the title compounds (I) and the catechols (II), which proceeds under very mild conditions, affords the hitherto unknown (novel‐type) 4‐oxo‐1,5,3‐benzodioxazepines (III) via an addition/elimination/intramolecular cyclization mechanism.
ChemInform Abstract: Trimethylsilyl Polyphosphate for Intramolecular Friedel‐Crafts Cyclizations.
Authors: BERMAN E. M. , SHOWALTER H. D. H.
Published: May 2016

Intramolecular Friedel‐Crafts cyclization of the benzoic acid derivatives (I) and (III) is effected with trimethylsilyl polyphosphate (PPSE), prepared from P2O5 and hexamethyldisiloxane, yielding the (hetero)xanthenones (II) and (IV).
ChemInform Abstract: The First N‐Only‐Bonded Metal Derivatives of Cyclenphosphorane. Formation of cyclenPH·MCl2 and cyclenPH·HMCl3 (M: Zn, Cd).
Authors: KHASNIS D. V. , LATTMAN M. , SIRIWARDANE U.
Published: May 2016

According to 31P NMR data the complexes (III) readily exchange MCl2 with the free ligand (I).
ChemInform Abstract: Synthesis and Transport Behavior of 1,1,6,6,11,11‐Hexamethyl‐1,6,11‐tristannacyclopentadecane.
Authors: JURKSCHAT K. , RUEHLEMANN A. + , TZSCHACH A.
Published: May 2016

The complexing ability of the title compound (III) for halide ions (Cl‐, Br‐) is studied, discussed and compared with that of the corresponding twelve‐membered compound.
ChemInform Abstract: Cr(CO)4(CNCF3)(CNCH3) and Cr(CO)4(CNCF3)(CNC6H5), Isocyanide Complexes with +I‐ and ‐I‐substituted Isocyanides.
Authors: LENTZ D. , POETTER B. + , MARSCHALL R. , BRUEDGAM I. + , FUCHS J.
Published: May 2016

The pentacarbonyl‐Cr complex (I) undergoes photolytic substitution of exclusively one CO ligand by THF giving a cis/trans mixture of the THF‐monosubstitution product.
ChemInform Abstract: Redox Chemistry, Dinuclear Complexes, and Ru3‐Cluster Derivatives of the “Ligand” (Cp(CO)2Mn‐CN)‐.
Authors: OSWALD B. , POWELL A. K. , RASHWAN F. , HEINZE J. , VAHRENKAMP H.
Published: May 2016

By means of the cyanomanganate complex (I) and its η5‐methylcyclopentadienyl analogue the abilities of the cyanide ion to link different organometallic units and to stabilize unusual electron counts in organometallic complexes are tested.
ChemInform Abstract: Phosphate Ester and Phosphinate Binding to the (μ‐Oxo)diiron(III) Core: Synthesis and Characterization of (Fe2O(O2P(OC6H5)2)2(HBpz3)2) and (Fe2O(O2P(C6H5)2)2(HBpz3)2).
Authors: TUROWSKI P. N. , ARMSTRONG W. H. , ROTH M. E. , LIPPARD S. J.
Published: May 2016

To model the interaction of phosphate ligands with oxo‐bridged diiron proteins the title complexes (III) are prepared.
ChemInform Abstract: Reactivity of Coordinated Phosphate Esters: Pentaamminecobalt(III) Complexes.
Authors: HENDRY P. , SARGESON A. M.
Published: May 2016

The reactivity of two phosphate ester complexes (I) and (III), designed to test the efficacy of different modes of activation of phosphate esters by metal ions, is studied by 31P NMR spectroscopy.
ChemInform Abstract: Synthesis and Spectra of Pyrazolo(4,5‐b)pyrido(2,3‐c)pyrazine Dimethine Cyanine Dyes.
Authors: KORAIEM A. I. M. , KHALAFALLA A. K. , SOLIMAN H. A.
Published: May 2016

The diaminonitrosopyridine (I) undergoes cyclocondensation with the methylpyrazolone derivatives (II) to form the pyrazolopyridopyrazines (IIIa) and (IIIb).
ChemInform Abstract: Preparation and Properties of Partially Protected 4‐Amino‐1‐methylimidazole‐2‐carboxylic Acids to be Used as Intermediates in the Synthesis of Analogues of Distamycin A.
Authors: GREHN L. , DING L. , RAGNARSSON U.
Published: May 2016

The title compounds and derivatives of them, e.g. (V), (VIII), (X), (XII) are prepared by convenient routes as shown from corresponding nitro pyrazoles (I) or (VII).
ChemInform Abstract: Preparation of Partially Protected 3‐Amino‐1‐methylpyrazole‐5‐carboxylic Acids to be Used as Intermediates in the Synthesis of Analogues of Distamycin A.
Authors: DING L. , GREHN L. , RAGNARSSON U.
Published: May 2016

The title compounds (IV), (V), (VI), (IX) are synthesized starting from the pyrazole (I); in addition, routes to further derivatives such as (X) and (XI) are described.
ChemInform Abstract: Total Synthesis of 7‐Deoxyaklavinone for Aklavin Anticancer Antibiotics.
Authors: CHO I. H. , CHUNG J. S. , HAN B. K. , YOO D. J. , LEE J. Y. , RHO Y. S.
Published: May 2016

The new ring anellation of (I) and (II) follows Michael addition using the sulfone anion.
ChemInform Abstract: Crystal Growth of Chromium Silicides by Chemical Vapor Transport with Halogens. Part 1. Growth of Chromium Disilicide Single Crystals.
Authors: KRAUSZE R. , KHRISTOV M. , PESHEV P. , KRABBES G.
Published: May 2016

Transport experiments with Cl2, Br2, and I2, performed in the temp. range 1173‐1373 K at a total pressure of 105 Pa show the transport direction to be from hot to cold when Cl2 or Br2 are used as the transportation agent.
ChemInform Abstract: Preparation and Structures of Chlorostannates(II). Part 1. Some New Trichlorostannates(II) of Monovalent Cations.
Authors: VEITH M. , GOEDICKE B. + , HUCH V.
Published: May 2016

KSnCl3, whose structure has hitherto been unknown, is recrystallized from MeCN to obtain single crystals suitable for X‐ray structure analysis.
ChemInform Abstract: Pyrolysis of α‐Acyl‐Substituted Ethyl Phenyl Sulfoxides.
Authors: TSUKURIMICHI E. , YOSHIMURA T. , YOSHIZAWA M. , ITAKURA H. , SHIMASAKI C.
Published: May 2016

Ethyl aryl sulfoxides such as (I) and (IV) are pyrolyzed, yielding the corresponding alkenes (II) and (V), together with the sulfenic acids (III).
ChemInform Abstract: Gas Phase Reactions. Part 71. PE Spectra and Pyrolyses of Nitrogen‐Rich Carbon Compounds: CN4, C2N4, C2H2N4, C4H6N4 and C5H4N4.
Authors: BOCK H. , DAMMEL R. , LORENCAK P. , WENTRUP C.
Published: May 2016

The PE spectra of the following compounds are presented and assigned by radical cation state comparison with related compounds or by Koopman's correlation with MNDO eigenvalues: cyanogen azide (I) (explosive liquid, the thermolysis of which is strongly dependent on pressure; at 10‐2 mbar the thermolysis ‐ beginning at 700 K ‐ produces nothing but carbon), azodicarbonitrile (II) (explosive crystals), tetrazolo(1,5‐a)pyridine (IV) (rearranging at 420 K/10‐4 mbar to 2‐pyridineazide), azidoacetonitrile (V) and trimethylenetetrazole (VII).
ChemInform Abstract: Ozonolysis of Olefins. Part 1. Ozonolysis of 1,4‐Cyclohexadiene and Acid‐Catalyzed Reaction of Primary Cleavage Products.
Authors: MITTELBACH M. , POKLUKAR N. , JUNEK H.
Published: May 2016

Complete ozonolysis of (I) in CHCl3 leads to a highly explosive ozonide.
ChemInform Abstract: Direct Esterification of Carboxylic Acid with Bromothiophenol, Bromonaphthol, and Bromoanthrone via Triphenylphosphine‐Induced Debromination.
Authors: FURUKAWA I. , TAKENAKA N. , HASHIMOTO S.
Published: May 2016

p‐Bromothiophenol (I) is debrominated upon heating with triphenylphosphine and then coupled with the carboxylic acid salts (II), producing the S‐phenyl thiolocarboxylates (III).
ChemInform Abstract: Synthesis of Alkyl Isocyanates by Pyrolysis of N‐Substituted 4‐Hydroxy‐5,5‐dimethyl‐2‐oxazolidinones.
Authors: SAITO N. , HATAKEDA K. , ITO S. , ASANO T. , TODA T.
Published: May 2016

The primary amines (I) react with the bromoisobutyrophenone (II) and carbon dioxide (III), forming the cyclic hydroxy carbamates (IV).
ChemInform Abstract: The Reactions of 1,4‐Dihalocubanes with Organolithiums. The Case for 1,4‐Cubadiyl.
Authors: EATON P. E. , TSANAKTSIDIS J.
Published: May 2016

Dropwise addition of Bu‐Li (II) to 1,4‐diiodocubane (Ia) followed by carbomethoxylation gives 30% of the bicubyl diester (V) and a little 4‐butylcarbomethoxycubane (VI).
ChemInform Abstract: Preparation of 1‐(tert‐Butoxycarbonyl)‐2,6‐dialkyl‐2,3‐dihydro‐4‐pyridones. A Stereocontrolled Synthesis of (.+‐.)‐Myrtine.
Authors: COMINS D. L. , LAMUNYON D. H.
Published: May 2016

4‐Methoxypyridine (I) reacts with the Grignard compounds (II) and phenyl chloroformate (III), yielding the dihydropyridines (IV) which are transesterified with potassium tert‐butoxide (V) to produce the carbamates (VI).
ChemInform Abstract: Synthesis and Properties of Analogs of 5(4)‐Aminoimidazole‐4(5)‐carboxamide and Purines. Part 15. Ring Opening of Imidazo(4,5‐d)‐1,2,3‐triazine Derivatives.
Authors: USOVA V. K. , SELEZNEVA I. S. , POSPELOVA T. A. , MOKRUSHIN V. S.
Published: May 2016

The chloroimidazotriazine (I) reacts with N,N‐dimethylaniline (II) under ring opening to give the phenylazoimidazole (III).
ChemInform Abstract: Synthesis of 1,2,4‐Triazine‐3‐thione Derivatives from Biacetyl and 4‐Substituted Thiosemicarbazides.
Authors: ZELENIN K. N. , ALEKSEEV V. V. , PEKHK T. I. , KUZNETSOVA O. B.
Published: May 2016

Biacetyl (II) reacts with the thiosemicarbazide (Ia) to produce the thiosemicarbazone (III) which is cyclized to give the methylenetriazinethione (IVa).
ChemInform Abstract: Biomimetic Studies Using Artificial Systems. Part 5. Design and Synthesis of Novel Water‐Soluble Biscyclophanes.
Authors: LAI C.‐F. , ODASHIMA K. , KOGA K.
Published: May 2016

Trifluoroacetylation of the tetraazaparacyclophane (I) with trifluoroacetic anhydride (II) yields the tetrakis(trifluoroacetyl) derivative (III) which is hydrolyzed partially to form the trisamide (IV).
ChemInform Abstract: Chemistry of Halosilane Adducts. Part 19. Temperature‐Dependent Equilibrium Between Pentacoordinate and Ionic Tetracoordinate Structures of an Organochlorosilane‐Nitrogen Base Adduct. Synthesis and Structural Investigations of (N‐Si)‐Silicon‐Functional (1‐(2‐Pyridone(2′‐pyridyl)imine)methyl)silanes. The Crystal and Molecular Structure of (N‐Si)‐Chloro(1‐(2‐pyridone(2′‐pyridyl)imine)methyl)dimethylsilane, (N‐Si)‐(1‐(2‐Pyridone(2′‐pyridyl)imine)methyl)trichlorosilane and 1‐Methyl‐2‐(2′‐pyridyl)aminopyridiniu
Authors: KUMMER D. , CHAUDHRY S. C. , SEIFERT J. , DEPPISCH B. , MATTERN G.
Published: May 2016

The silanes (II) and (IV) are condensed onto solid (I) at liquid nitrogen temp., affording the compounds (III) or (V).
ChemInform Abstract: Diorganotin(IV) Dialkyl Dithiophosphates: Synthesis and Spectral Studies of Diorgano(hydroxo)tin(IV) Dialkyl Dithiophosphates.
Authors: PARULEKAR C. S. , JAIN V. K. , KESAVADAS T.
Published: May 2016

Reaction of the dialkyltin oxides (I) with the dialkyl dithiophosphates (II) produces the complexes (III) mentioned in the title.
ChemInform Abstract: Palladium(II) and Platinum(II) Complexes with Aryl Selenols and Diaryl Diselenides: A Comparative Approach with Tellurium and Sulfur Analogues.
Authors: KHANDELWAL B. L. , GUPTA S. K.
Published: May 2016

The reactivity of the polymeric Pd complexes (III) and (IV) is investigated.
ChemInform Abstract: Retention and Apparent Inversion During Azide Displacement of α‐Triflates of 1,5‐Lactones.
Authors: BRUCE I. , FLEET G. W. J. , GIRDHAR A. , HARALDSSON M. , PEACH J. M. , WATKIN D. J.
Published: May 2016

Reaction of azide ion with the 2‐O‐trifluoromethanesulfonate derived from the D‐glycero‐D‐talo‐heptano‐1,5‐lactone (I) yields the D‐glycero‐D‐galacto lactone (IV), which isomerizes to the more stable D‐glycero‐D‐talo lactone (V).
ChemInform Abstract: Analytical TEM Study of the Selective Photocatalytic Deposition of Platinum on Titania‐Silica Mixtures and Silica‐Supported Titania.
Authors: HERRMANN J.‐M. , MANSOT J.‐L.
Published: May 2016

The photodeposition of Pt onto mechanical TiO2/SiO2 mixtures and SiO2‐supported TiO2 is carried out in a static slurry photoreactor under UV irradiation.
ChemInform Abstract: On the Properties of Silica‐Supported Bimetallic Fe‐Cu Catalysts. Part 2. Reactivity in the Fischer‐Tropsch Synthesis.
Authors: WIELERS A. F. H. , KOEBRUGGE G. W. , GEUS J. W.
Published: May 2016

It is found that Fe‐Cu/SiO2 bimetallic catalysts are more active for the Fischer‐Tropsch reaction than the iron catalyst.
ChemInform Abstract: Steady‐State Kinetics of the CO‐N2O Reaction Over an Alumina‐Supported Rhodium Catalyst
Authors: MCCABE R. W. , WONG C.
Published: May 2016

are studied in a plug‐flow reactor at temp. of 550‐700 K and CO and N2O partial pressures in the range 0.6‐7 torr.
ChemInform Abstract: Reduction of the Incomplete Cuboidal Molybdenum(IV) Aqua Ion (Mo3(μ3‐O)(μ‐O)3(OH2)9)4+ by Eu2+. Characterization of the Trinuclear Molybdenum(III) and Mixed‐Valence Molybdenum(III,III,IV) Aqua Ions by Oxygen‐17 NMR Spectroscopy.
Authors: RICHENS D. T. , GUILLE‐PHOTIN C.
Published: May 2016

The products of reduction of (I) by Eu2+ in p‐toluene sulfonic acid are characterized by 17O NMR.
ChemInform Abstract: A Stable Seven‐Membered Ring Ketenimine from a Thiocarbonyl Ylide and an Acceptor Olefin.
Authors: HUISGEN R. , LANGHALS E. , MLOSTON G. , OSHIMA T.
Published: May 2016

The thiocarbonyl ylide, generated from the 1,3,4‐thiadiazoline (I), and the trans‐dinitrile (II) undergo cyclization reaction to form a mixture of the spirocyclic tetrahydrothiophene (III) and the 7‐membered ketenimine (IV).
ChemInform Abstract: Metal Template Assisted Schiff Base Condensations: An Evaluation of Thermodynamic versus Kinetic Control.
Authors: SHEERAN D. J. , MERTES K. B.
Published: May 2016

The influence of kinetic and thermodynamic template effects is examined for a unique Pt(II) complex (I), resulting from the Schiff base condensation of o‐aminobenzaldehyde with (PtCl4)2‐.
ChemInform Abstract: Neophyl‐Like Rearrangement of Alkoxy Radicals: Direct Detection of a Bridged Intermediate by Time‐Resolved Absorption Spectroscopy.
Authors: FALVEY D. E. , KHAMBATTA B. S. , SCHUSTER G. B.
Published: May 2016

Both peroxides (I) are subjected to laser flash photolysis in different solvents (266 nm; 20 ns as well as 17 ps pulses).
ChemInform Abstract: Br2‐CO(NH2)2‐AcOH. A System for Highly Selective α‐Monobromination of Ketones.
Authors: ZAV'YALOV S. I. , EZHOVA G. I. , SITKAREVA I. V. , DOROFEEVA O. V. , ZAVOZIN A. G. , RUMYANTSEVA E. E.
Published: May 2016

Bromination of the ketones (I) with the title system produces the 1‐bromo ketones (II), together with 3‐isomers (III) as by‐products.
ChemInform Abstract: Anomalies in the Reduction of the Schiff Bases 5‐(Diethylamino)‐2‐(phenyliminomethyl)phenol and 2‐((4‐Diethylaminophenyl)iminomethyl)phenol and Their Crystal Structures.
Authors: MOLONEY G. P. , GABLE R. W. , ISKANDER M. N. , CRAIK D. J. , MACKAY M. F.
Published: May 2016

The inefficient reduction of the Schiff base (I), leading to the green gum (II), is explained by the virtual planarity of the molecule and a significant contribution of the quinoid form (space group for (I): P212121, Z=4).
ChemInform Abstract: Electroorganic Chemistry. Part 119. Electrooxidative Rearrangement of Conjugated Arylolefins to Arylacetaldehyde Dimethyl Acetals.
Authors: SHONO T. , MATSUMURA Y. , KATOH S. , IKEDA K. , FUJITA T. , KAMADA T.
Published: May 2016

Electrolysis of the styrenes (I) in the presence of trimethyl orthoformate (II) and iodine results in methoxylation and aryl migration, yielding the acetals (III).
ChemInform Abstract: Synthesis of Disubstituted N‐Amino Maleimides and Maleic Anhydrides from α‐Halohydrazides. Study of the Reaction Mechanism.
Authors: FLORAC C. , BAUDY‐FLOC'H M. , ROBERT A.
Published: May 2016

N‐Amino maleimides are precursors of pyridazinediones which may be used as antibacterial agents.
ChemInform Abstract: Synthesis of N‐(1,2,4‐Triazol‐5‐yl)amidines from 5‐Amino‐1,2,4‐triazoles and Nitriles Using Tributylborane.
Authors: DOROKHOV V. A. , AMAMCHYAN A. R. , BOGDANOV V. S.
Published: May 2016

Reaction of the aminotriazole (I) with tributylborane (II) gives the triazolylborane (III) which is coupled with acetonitrile (IV), producing the chelate (Va).
ChemInform Abstract: Tetrahydrofolate Coenzyme Models: Synthesis of Tetrahydroimidazoisoquinolines and Tetrahydroimidazoquinolines.
Authors: JONES R. C. F. , SMALLRIDGE M. J. , CHAPLEO C. B.
Published: May 2016

Starting from isoquinoline (I) the new 3‐methylimidazo(5,1‐a)isoquinoline (IX) is prepared.
ChemInform Abstract: Si((Me2P)2C(SiMe3))2, A Stable Molecular σ Compound of the Two‐Valent Silicon.
Authors: KARSCH H. H. , KELLER U. , GAMPER S. , MUELLER G. +
Published: May 2016

The pseudo‐trigonal‐bipyramidal title compound (III) (space group P1, Z=2) is obtained by reduction of Si2Cl6 (I) in the presence of the diphosphinomethanide (II).
ChemInform Abstract: Synthetic and Spectroscopic Studies of Phosphoranides (PR(CN)2X)‐ and the Crystal and Molecular Structure of (NEt4)(PPh(CN)2Cl).
Authors: DENG R. M. K. , DILLON K. B. , SHELDRICK W. S.
Published: May 2016

By addition of an excess of the appropriate anion in the form of a solution of its tetraalkylammonium salt to a solution of the organodicyanophosphine, several new phosphoranides of the type (I) are synthesized.