bluuebunny/crossref_metadata_2025 huggingface dataset:
Chemical Modification of Polymers Intended to Increase Blood Compatibility
Authors: Bamford C. H. , Al‐Lamee K. G. , Middleton I. P. , Paprotny J. , Carr R.
Published: September 2010

Synthetic methods available for improving the haemocompatibility of polymer surfaces are outlined. The present paper is concerned mainly with ”passivation“ techniques and some of the chemical routes by which they may be effected.

Uses of isocyanatoethyl methacrylate as a functionalising reagent and for grafting to polymers are discussed with examples of its applications in the syntheses of (a) monomers from α‐amino acids and peptides, and the amino‐sugars D‐glucamine and D‐glucosamine, and (b) macromers from poly(ether urethanes) and from the hydroxylic macromolecules poly(ethylene glycol), poly(tetrahydrofuran), poly (vinyl alcohol) and dextran.

Grafting of monomers and macromers to functionalised polymers is considered. A series of grafts to polyurethane elastomers have been synthesised and tested for blood‐platelet adhesion (a measure of passivation) by a simple procedure which is outlined. All the graft copolymers tested show significantly reduced platelet adhesion compared to the base polyurethane. In particular, a Pellethane‐poly D‐glucamine graft is probably the most inert material towards platelets which we have examined.
Calorimetric Investigation of the Phase Behaviour of the System Poly(2,6‐Dimethyl‐1,4‐Phenyleneoxide)‐Antracene
Authors: Aerts L. , Berghmans H.
Published: September 2010

The phase behaviour of the system poly(2,6‐dimethyl‐1,4‐phenyleneoxide) (PPO) ‐ antracene was investigated. An eutectic behaviour was deduced from calorimetric observations. In samples prepared by evaporation of a benzene solution, the melting point depression of both components and the eutectic melting was observed. When the samples are prepared by freeze‐drying from a benzene solution, only the melting point depression of antracene and the eutectic melting was observed. The presence of PPO crystallites could only be revealed by X‐ray scattering observations.
Catalytic Oxidation of Methane to C2 Hydrocarbons
Authors: Yang H. , Thyrion F. C.
Published: September 2010

The oxidative coupling of methane has been tested over a series of silicalite‐supported catalysts. Both methane and natural gas were used as reactants and the results showed that the selectivity and the yield of ethylene were always higher with natural gas as feed. The influence of the concentration of manganese and sodium on the catalyst activity and selectivity has been studied. Experiments conducted with methane or ethane as reactant, in the presence or in the absence of the gas phase oxygen, showed that adsorbed oxygen species plays an important role in the methane activation and that carbon oxides derive mainly from the methyl radicals issued from methane. Kinetic results are also reported.
Localization of Mn2+ Ions in Zeolites X and a Derived from Computer Simulation of Experimental Spectra
Authors: Zawacki M. , Gutsze A. , Kornatowski J.
Published: September 2010

The method of electron paramagnetic resonance has been used to determine the localization of Mn2+ ions in X and A zeolites partially exchanged for Mg2+ and Ca.

The EPR spectra of Mn2+ ions recorded in X and Q bands in parallel have been interpreted based on computer simulation of EPR powder spectra of paramagnetic ions with electron and nuclear spins S = J = 5/3. The spectra have been divided into 7 types corresponding to various localizations of Mn2+ ions in the zeolites studied.
Régiochimie Et Diastéréochimie De L'Addition Des Arylnitriloxydes Sur Les Énones Derivées D'Indanones
Authors: Chekti Rabia , Soufiaoui Mohammed , Toupet Loic
Published: September 2010

The nitriloxides as 1,3‐dipole add stereo and regiospecifically to the carbone‐carbone double bond of 2‐arylidene‐1‐indanones, leading to spiro derivatives. The spectral properties of the new cycloadducts are discussed.
Réaction De Diarylnitrilimines Sur Des 2‐Arylidene‐Tetralin‐1‐Ones Substituées. Influence Des Facteurs Conformationnels Sur La Diastéréochimie De La Réaction
Authors: Kerbal Abdelali , Tshiamala Kabula , Vebrel Joël , Laude Bernard , Mercier M.‐F.
Published: September 2010

Spiropyrazolines have been synthetized by 1,3‐dipolar cycloaddition of some 2‐arylidene‐1 ‐tetralones with diarylnitrilimines. It is shown that ring‐closure reaction is regiospecific. The diastereoselectivity of the reaction is strongly dependent on the conformational disposition of the substituents of the dipolarophile. The relative configuration and conformation of the products have been determined by means of protonic magnetic resonance measurements.
Synthèse Dans La Série Des Phenanthridines. IV. Préparation De Nouveaux Radioprotecteurs A Motif Phenanthridine
Authors: Lion Claude , Boukou‐Poba Jean‐Paul , Charvy Claude
Published: September 2010

New phenanthridines substituted in the 6‐position by a β‐aminoethylthiol chain have been synthesized. These new products are easily obtained from 6‐methylphenanthridine by a Mannich reaction or from 6‐bromophenanthridine by substitution. From the 6‐carboxaldehydophenanthridine and the β‐amino‐ethylthiol, the corresponding thiazolidine or imine are obtained. These compounds are likely to be new radioprotectors.
Isotope Labelling Studies of Some Aromatic N‐Oxides ‐ Part II. A Full Vibrational Assignment of the Infrared and Raman Spectra (4000‐50 CM−1) of Pyrazine N‐Oxide and its Fully Deuterated Analogue
Authors: Thornton David A. , Verhoeven Paul F.M. , Watkins Gareth M. , Desseyn Herman O. , van Der Veken Benjamin J.
Published: September 2010

Full infrared and Raman vibrational assignments of pyrazine N‐oxide and its fully deuterated analogue have been made. Three changes are recommended to an earlier assignment of the ‐d0 compound. Coupling within the molecule is examined employing the νD/νH ratio and by comparisons with similar molecules.
Isotope Labelling Studies of Some Aromatic N‐Oxides ‐ Part III. A Full Vibrational Assignment of the Infrared Spectra (4000‐50 cm−1) of 2,2'‐Bipyridine N,N'‐Dioxide and its Fully Deuterated Analogue
Authors: Thornton David A. , Watkins Gareth M.
Published: September 2010

Full infrared vibrational assignments (4000 to 50 cm−1) of 2,2'‐bipyridine N,N′‐dioxide and its fully deuterated analogue have been made. Coupling, particularly involving the N‐O moiety and the inter‐ring bond, is examined employing the νD/νH ratio and by comparison with similar molecules. Several changes to earlier partial assignments for the ‐d0 isotopomer are recommended.
syn‐ and anti‐forms of Benzil Monodimethylhydrazone
Authors: Collibee William L. , Springer James P. , Arison Byron H. , Anselme J.‐P.
Published: September 2010

The α‐ and β‐forms of benzil monodimethylhydrazone have been shown to be the anti‐ and syn‐isomers by X‐ray crystallography.
A Semi‐empirical Theoretical Study of the Structure of Pyrazolidinones and Related Compounds
Authors: Elguero José , De Paz José Luis G.
Published: September 2010

INDO and AMl calculations with complete optimization of the geometry have been performed on seven pyrazolidinones (neutral, cations and zwitterions) and the corresponding pyrazolinones. The geometries, dipole moments and energies are discussed. Both methods yield acceptable results, INDO being better for the energies and AMl for the geometries.
Conformers of 2‐(2,6‐Dimethoxyphenyl)‐4H‐1‐Benzopyran‐4‐One (2′,6′‐Dimethoxyflavone) and its Solvates with Formic and Propionic Acids
Authors: Tinant B. , Declercq J. P. , Wallet J. C. , Gaydou E. M. , Baldy A.
Published: September 2010

(1): C17 H14O4 Mr=282.30, triclinic, P‐1, a=10.509(2), b=13.448(1), c=17.061(2)Å, α=67.24(1), ß=107.72(2), γ=103.59(1)°, V=2099.0(5)Å3, Z=6, (3 independent molecules), Dx=1.34 g·cm−3, CuKα, λ=1.54178Å, μ=7.98cm−1, F(000)=888, T=291K, R =0.052 for 5178 observed reflections.

(2): C17 H14O4.CH2O2, Mr=328.32, orthorhombic, P212121, a=23.614(8), b=4.691(1), c=14.327(4)Å, V=1587.1(8)Å3, Z=4, Dx=1.37 g6middot;cm−3, CuKα, λ=1.54178Å, μ=8.79cm−1, F(000)=688, T=291K, R=0.074 for 2038 observed reflections.

(3): C1 · H14O4.C3H6O, Mr=356.37, triclinic, P‐1, a=7.596(3), b=9.624(5), C=13.122(2)Å, α=91.54(3), ß=100.26(3), γ=76.30(4)°, V=916.9(6)Å3, Z=2, Dx=1.29 g6middot;cm−3, MoKα, λ=0.71069Å, μ=1.03cm−1, F(000)=376, T=291K, R=0.053 for 1959 observed reflections.

In the non‐solvated molecule (1), the three independent molecules in the unit cell differ only by the dihedral angle between the benzopyrone and the phenyl ring, 68(1), 86(1) and 84(1)° respectively. For the formic (2) and propionic acid (3) solvates, the dihedral angle between the heterocycle and the phenyl ring are 80(1) and 64(1)° respectively. In the two solvates the hydrogen bonding involving the carbonyl oxygen is alike. It may be thus concluded that this hydrogen bond has no effect on the conformation of 2′,6′‐dimethoxyflavone.
Synthèse des Diastéréoisomères D'Un Antagoniste du Leucotriène B4, Le Sm9064
Authors: Téniou Abderrahmane , Grée René
Published: September 2010

Functionalized butadiene tricarbonyl‐iron complexes have been used for the synthesis of both diastereoisomers of SM9064. This antagonist of leukotriene B4 is characterized by a conjugated triene bearing, in 1,8 relative position, two secondary alcohol functions. The relative configuration of the two stereogenic centers has been controlled using the organometallic moiety not only as stereoinducing group but also as a temporary stereochemical relay.
Hydrogénation du Monoxyde de Carbone: I ‐ Étude de catalyseurs Nickel‐Molybdène supportés par l'alumine
Authors: Ghazi M. , Ménézo J.‐C. , Barrault J.
Published: September 2010

The catalytic performances of alumina supported nickel catalysts were greatly modified by molybdenum. Selectivity in methane formation was divided by 2 while that in alcohol was close to 30%, value rarely observed on nickel catalysts. The best results were reached for an Ni/Ni + Mo atomic ratio of 0,35.
Polarographic Behaviour of Indole‐2‐Hydroxamic Acid by DPP
Authors: Lopez‐Arza V. , Valiente P. , Jimenez M. , Sanchez A. , Rodriguez J.
Published: September 2010

The differential pulse polarography technique (DPP) has been utilized to study the behaviour of indole‐2‐hydroxamic acid (2‐IHA). This is a novel hydroxamic acid synthesized for us which exhibits properties as a ligand of metallic species. This ligand may enhance the determination of many trace metals using analytical techniques such as HPLC and DPP but first the properties of this ligand were studied. This reagent gives rise to one cathodic wave with an Ep value of −0,96 V. versus Ag/AgCl at pH 0.92.

The principal characteristics of this wave have been studied and the possible mechanisms for the electrode process proposed.

Under optimum conditions the limit of detection is 8×10−6 M.
Crystal Structures of Lorazepam Acetone Solvate [I] and N‐butyl Alcohol Solvate [II]
Authors: Rambaud J. , Dubourg A. , Delarbre J.‐L. , Roger J. , Maury L. , Declercq J.‐P.
Published: September 2010

The crystal structures of lorazepam acetone [I] and lorazepam n‐butyl alcohol [II] solvates are determined. [I] is triclinic, P‐1 with a = 12.602(2), b = 8.626(1), c = 8.610(1) Å; α = 72,27(1), β= 74.66(1), γ = 78.82(1)°; V = 853.2(2) Å3, Dx = 1.44 g·cm−3, λ(Cu Kα) = 1.54178 Å, F(000) = 392, R=0.068 for 2990 observed reflections. [II] is monoclinic, C2/c, with a = 26.466(13), b = 10.947(3), c = 13.906(7) Å; β=103.13 (4)°; V = 3924 (3) Å3, Dx = 1.388 g·cm−3, λ (Mo Kα) = 0.71069 Å, F(000) =1648, R = 0.09 for 1887 observed reflections. These crystal structures are compared with analogous molecules.
Activation Hardness as an Index for Predicting the Orientation of Nucleophilic Aromatic Substitution: Application to Flavylium Salts
Authors: Amic D. , Trinajstic N.
Published: September 2010

It is shown that the activation hardness can be used as a reactivity index for predicting the orientation of nucleophilic attack on the aromatic supstrates such as flavylium salts.
Amino Acids in the Synthesis of Heterocyclic Systems a Novel Synthesis of Fused Pyridinones
Authors: Copar Anton , Stanovnik Branko , Tišler Miha
Published: September 2010

Enamines 6, prepared from heterocycles with a methyl group at α‐position in respect to ring nitrogen atom 1 and N, N‐dimethylformamide dimethyl acetal (3) or t‐buthoxy‐bis (dimethylamino)methane (4), are transformed with 2‐phenyl‐5 (4H)‐oxazolone (7) into the corresponding intermediates 9, which cyclize into azinopyridinones 11. The method represents a novel synthesis of this class of fused systems.
Experimental Evidences of the Direct Influence of Phosphorus on Activity and Selectivity of a MoS2‐γAl2O3 Hydrotreating Catalyst
Authors: Poulet O. , Hubaut R. , Kasztelan S. , Grimblot J.
Published: September 2010

The objectives of this work are to provide new arguments for elucidating the influence of P added to a classical MoS2‐γAl2O3 catalyst. The sulfided catalyst, activated by H2 at different temperatures TR in order to create anionic vacancies around the Mo sites was then tested in hydrogenation and hydrodenitrogenation reactions. It appears that P present in the catalyst acts directly on the support but also participates in the architecture of the supported active phase.
Preparation and Characterization of Pyrazolo[1,5‐a]Pyrimidines
Authors: Maquestiau A. , Taghret H. , Vanden Eynde J.‐J.
Published: September 2010

1‐Phenyl‐1,3‐butanedione readily reacts with 3(5)‐amino‐1H‐pyrazoles to yield mixtures of pyrazolo[1,5‐a] pyrimidines which are identified by 1H nmr. Selective preparation of 5‐methy1‐7‐phenylpyrazolo[1,5‐a] pyrimidines can be achieved when 3‐amino‐1‐pheny1‐2‐buten‐1‐one is used instead of the 1,3‐dicarbonyl precursor.
Infrared Investigation of the Interaction Between Diphenylketimine and Proton Donors
Authors: Leunens V. , Migchels P. , Peeters D. , Zeegers‐Huyskens TH.
Published: September 2010

The thermodynamic data for the interaction between diphenylketimine and phenols are determined in carbontetrachloride solution by infrared spectroscopy. Complex formation brings about a frequency increase of the νNH vibration. From a pKa value of the proton donor of 6, proton transfer takes place.
The Complexes of Some Group III B Metals with 4‐(3,5‐Diphenyl‐2‐Pyrazolin‐1‐yl)Benzenesulfonic Acid
Authors: Dianzhong Feng , Bo Wang
Published: September 2010

The new complexes (Ln(Dpbs)2 · (H2O)4) Dpbs · nH2O, where Dpbs = 4‐(3,5‐Diphenyl‐2‐pyrazolin‐1‐yl)benzenesulfonate ion, n = 0 or 2, have been synthesized and were characterized by elemental analyses, conductivity measurements, solubility, X‐ray powder patterns, thermal analysis, IR, Uv‐Vis and fluorescence spectra.
Hydroformylation Des Alcenes Avec Sn[Co(CO)4]4 En Phase Homogene
Authors: Cabrera A. , Marquez C. , Arias J. L.
Published: September 2010

We have studied the catalytic activity of the system Sn[Co(CO)4]4 (1) in the hydroformylation reaction of 1‐pentene at 57 and 100 atm and 150°C, with and without phosphine ligand additon. We have evidences suggesting the partial recombination of (1) in Co2(CO)8 which is the real precursor in the process.
Calculation of Core Electron Binding Energies Using the Pseudopotential Method
Authors: van De Vondel D. F. , van Wijnsberghe F. , D'Heer J. , van Der Kelen G. P.
Published: September 2010

Ab initio calculations using the pseudopotential method do not allow to determine the energy of the core orbitals. As a consequence it is impossible to compute the shift in binding energy in X‐ray electron spectroscopy for a series of molecules. It is shown that this shift can be calculated using the difference in electrostatic potential exercised at the nucleus by the valence electrons.
Photoinduced Formation of the Dimethyl Acetals of Norbornan‐2‐One Derivatives Containing a Cyclic Ether Function in α‐Position
Authors: De Keukeleire Denis , Ruysschaert Yves
Published: September 2010

The norbornan‐2‐one derivatives 3 and 5 are photoinert on irradiation at 254 nm except in methanol. Photoinduced formation of formic acid leads to the corresponding dimethyl acetals 4 and 6, respectively.
Synthesis of 1,2‐Diamino‐1,2‐Diphenylbutane by Titanium Induced Reaction of Ammonia with Acetophenone
Authors: Volckaerts E. , Geise H. J. , Daelemans F. , Claereboudt J.
Published: September 2010

Reaction at room temperature of gaseous ammonia with acetophenone under the influence of low‐valent titanium ‐ prepared from TiCl3: LiAlH4 in the molar ratio 2 : 1 ‐ leads to formation of 2,3‐diamino‐2,3‐diphenylbutane in a synthetically useful yield (58 %). It is essential to simultaneously add NH3 and ketone keeping their ratio 1 : 1 until the ratio Ti: NH3: ketone = 1 : 1 : 1 is reached. Mass spectral characteristics and other spectroscopic properties of the new compound and of some side compounds are discussed. A plausible mechanism of the aminative reductive ketone coupling is given.
Synthesis and Analysis of the 1H and 19F Spectra of Tetrafluorobenzobarrelene and its 1,3,10‐Trimethyl Derivative
Authors: Fruchier Alain , Claramunt Rosa M. , Elguero José , Carmona Daniel , Esteban Montserrat
Published: September 2010

The complete 1H and 19F NMR analysis of TFB and Me3TFB has been carried out. Some new long distance coupling constants have been determined.
Caracterisation Des Catalyseurs a Base D'argile Par Spectroscopie R.P.E
Authors: Ghazi M. , Barrault J.
Published: September 2010

The E.P.R. study has shown that iron present in the materials issued from iron enriched kaolinites and used as catalyst in (CO + H2) reactions, is partly a “structural iron” located on the grains outer surfaces and a “resisting iron” in substitution octaedric sites.
X‐Ray Structure of N‐Methyl‐3β, 5‐Epoxyimino‐5 β‐Cholest‐1‐Ene
Authors: Tinant B. , Declercq J. P. , Rajkovic M. , Lorenc LJ. , Mihailovic M. Lj.
Published: September 2010

The molecular structure of the title compound, a steroidal isoxazolidine derivative, which is formed by transannular nitrone 1,3‐dipolar cycloaddition in the reaction of (Z)‐3β‐acetoxy‐5, 10‐secocholest‐1(10)‐en‐5‐one with N‐methylhydroxylamine, was determined by X‐ray analysis, confirming the 1(2)‐position of the double bond and the presence of a cis‐3β,5β‐epoxyimino bridge.
Stability of The Imidazolin‐4‐One Ring Towards Hydrolyses and Oxidations Reactions
Authors: Rouchaud J. , Gustin F. , Moulard C.
Published: September 2010

Heating to reflux the imidazolin‐4‐one arylcarboxylate herbicide imazamethabenz 1 (methyl 2‐(4,5‐dihydro‐4‐methyl‐4‐(1‐methylethyl)‐5‐oxo‐1H‐imidazol‐2‐yl)‐4‐(in mixture with the 5‐isomer) methylbenzoate) in KOH in water, or in HCl or H2SO4 in water, or in HCl in acetic acid+ water hydrolyzed only the methylcarboxylate function, yielding 2‐(4,5‐dihydro‐4‐methyl‐4‐(1‐methylethyl)‐5‐oxo‐1H‐imidazol‐2‐yl)‐4‐(in mixture with the 5‐isomer) methyl‐benzoic acid (2). The imidazolin‐4‐one ring thus remained intact in all the assayed hydrolysis conditions. The oxidation reagents acetic acid+acetic anhydride+KMnO4, or acetic acid+CrO3 left imazamethabenz untransformed; the first reagent however transformed a part of imazamethabenz into its N‐acetyl derivative (5). The oxidation reagent water+Na2CO3+ KMnO4 hydrolyzed the carboxylate of imazamethabenz, and oxidized the methyl substituent on the benzene ring, giving 2‐(4,5‐dihydro‐4‐methyl‐4‐(1‐methylethyl)‐5‐oxo‐lH‐imidazol‐2‐yl)‐1,4‐(in mixture with the 1,5‐isomer)‐benzenedicarboxylic acid (3). The oxidation reagent water containing H2SO4+Na2Cr2O7 however gave 1,2,4‐benzenetricarboxylic acid (4)(in mixture with the 1,2,5‐isomer), which corresponded to the simultaneous oxidation and hydrolysis of the imidazolin‐4‐one ring. All these trials thus showed the high resistance of the imidazolin‐4‐one ring towards hydrolysis and oxidation; it probably was due to its tautomeric equilibrium with the fully aromatic hydroxy form (transformed into the potassium hydroxylate salt in basic medium), and to its nitrogen atoms protonation in acid medium.
Chronopotentiometry with a Potential‐Exponential Current‐Time Function at the SMDE. Application to the Study of CEC Mechanisms
Authors: Lopez‐Tenes M. , Serna C. , Molina A.
Published: September 2010

A theoretical study of the potential‐time response corresponding to the CEC mechanism at the SMDE by using a current‐time function of the form I(t) = Io tuewt is presented. Methods for determining heterogeneous and homogeneous kinetic parameters are proposed. The expressions corresponding to plane electrodes, simpler reaction schemes and particular cases of the general current‐time function studied can be deduced from the general equations obtained here.
Condensation of Dichloromethyleniminium Chloride with Alkylidenemalononitriles or Alkylidenecyanoacetates
Authors: Bouvy Didier , Janousek Zdenek , Viehe Heinz G.
Published: September 2010

Phosgeniminium salt 1 easily condenses with vinylogues of malononitrile 4 to yield new γ,γ‐dicyano‐α‐chlorodienamines 13 which can undergo substitutions and heterocyclisation reactions. Vinylogues of malonate do not react with 1 whereas those of cyanoacetate 21 lead to the formation of new α‐pyrones 23.
Mesures de Conductivité Et de Coefficients de Diffusion Dans Les Mélanges Eau ‐ Hydroxyde de Sodium
Authors: Claes P. , Glibert J. , Wakenge B.
Published: September 2010

Measurements of conductivity and diffusion constants were carried out in H2O‐NaOH mixtures at NaOH mole fractions ranging from 0.02 to 0.6 (tmax ≈︁ 200°C). Equivalent conductance isotherms and diffusion isotherms of the TeO32‐ and PbO22‐ ions do not show any particular occurrence when the corresponding activation energy values exhibit a broad maximum at about XNaOH = 0.3 and a sharper maximum at XNaOH = 0.5. This last composition corresponds to the NaOH.1 H2O distectic. A transition in the mechanism of conductance in molten NaOH hydrates from the proton transfer mechanism to the hydrodynamic mechanism can be suggested.
Solvolyse Alcaline du Triphénylsilane. II. Influence de La Teneur En Eau Sur La Cinétique Dans L'Acétonitrile
Authors: Tondeur J.‐J. , Borghese A. , Vandendunghen G.
Published: September 2010

The influence of the composition of acetonitrile‐water mixtures on the kinetics of the alkaline hydrolysis of triphenylsilane is investigated, by hydrogen volumetry, at 25°C. Within the range of increasing molarities 1.09 ≤ [H2O] (mol l−1) ≤ 11.98, a slight decrease of the second order rate constant (kII □ rate/[SiH] [OH−]) is observed.

A tentative interpretation, taking into account the variation of the transfer activity coefficient of OH−, leads to a 4th order with respect to water, which would normally imply that four water molecules are involved in the transition state, but this conclusion could be questionable, since the structure of the mixture is deeply modified when the water content is varied.

The values of the Gibbs function of transfer for the activated state in the rate determining step are close to those for OH−, indicating a structure with original bonds almost broken.
Coordinating Behaviour of Pyridylhydrazones. Complexes of Rh(III) with Methyl‐2‐Pyridyl and Phenyl‐2‐Pyridyl Hydrazones and N,N′‐Dimethylhydrazones
Authors: Kovala‐Demertzi Dimitra
Published: September 2010

Mono, bis and tris complexes of Rhodium(III) with pyridyl hydrazones 2‐acetylpyridine hydrazone (APH) and 2‐benzoylpyridine hydrazone (BPH) and mono complexes of 2‐acetylpyridine dimethylhydrazone (APDMH) and 2‐benzoylpyridine dimethyl‐hydrazone (BPDMY) have been isolated. The complexes were characterized by elemental analyses conductivity measurements, thermal methods, and spectral (IR, far‐IR, electronic, and 1H NMR) studies. The ligands appear to coordinate via both pyridine and azomethine atoms. Electronic spectra show that all complexes are octahedral and the bis(ligand) and tris(ligand) complexes are cis‐isomers.
Hammett Correlations of Electronic Absorption Spectral Parameters of Pyrimidines
Authors: Párkányi Cyril , Boniface Christian , Aaron Jean‐Jacques , Gaye Mame Diabou
Published: September 2010

The wavenumbers of the long‐wavelength electronic absorption band maxima of substituted uracils give good linear correlations (r = 0.945 to 0.992) with the excited‐state Hammett substituent constants, σ*, in several solvents.
Heterolytic Chlorination of Ethers with Sulfuryl Chloride. Functionalization of 3‐Methyltetrahydropyran
Authors: De Buyck Laurent , Verhue Ann
Published: September 2010

The chlorination of 3‐methyltetrahydropyran (1) with an excess of sulfuryl chloride in the dark at 65‐90° (bath) proceeded with initial attack at the 2‐ or 6‐position in the ratio 47:53. The reaction occurred at 0.8 times the rate of tetrahydropyran and was not accelerated by addition of N,N‐dimethyloctylamine (salts). The end products 2,3‐dichloro‐3‐methyl THP (trans 2a and cis 3a 10:1) and 2,3,3‐trichloro‐5‐methyl THP (cis 4a and trans 5a 10:1) were obtained in up to 93% distilled yield with good separation. The α‐chloroethers were converted to methyl ethers, formates, acetates and hemiacetals.
An Expedient Route to 1H‐Benzimidazoles and 1H‐Imidazopyridines
Authors: Vanden Eynde Jean‐Jacques , Mayence Annie , Maquestiau André , Anders Ernst
Published: September 2010

1H‐Benzimidazoles, 1H‐imidazo[4,5‐b]pyridines, and 1H‐imidazo[4,5‐c]‐pyridines can be synthesized readily by reaction of unisolated N‐(1‐chloro‐alkyl)pyridinium chlorides with 1,2‐benzenediamines, 2,3‐pyridinediamine, and 3,4‐pyridinediamine respectively.
Crystal Studies of Musk Compounds VI. Preliminary Crystal Structure Investigation of two Macrocyclic Musk Compounds
Authors: De Ridder Dirk J. A. , Driessen René A. J. , Goubitz Kees , Schenk Henk
Published: September 2010

An X‐ray investigation of the macrocyclic musk compounds 11‐oxahexadecanolid and hexadecanolid has been carried out at reduced temperature. In both cases the limited number of reflections precluded a structural determination.
A Facile Total Synthesis of (±)‐Acoragermacrone by Titanium‐Induced Keto Ester Cyclization
Authors: Li Weidong , Li Ying , Li Yulin
Published: September 2010

(±)‐Acoragermacrone, a natural occurring germacrane‐type sesquiterpenoid, was synthesized from geranyl acetate via eight steps by employing titanium‐induced intramolecular keto α,β‐unsaturated ester coupling as key step.
Resolution of Ternary Mixture of Tartrazine, Quinoline Yellow and Sunset Yellow by Derivative Spectrophotometry and Ratio Spectra Derivative
Authors: Berzas Nevado J. J. , Flores J. Rodríguez , Villaseñor Llerena M. J.
Published: September 2010

Two methods for determining the colorants Tartrazine (E‐102), Quinoline Yellow (E‐104) and Sunset Yellow (E‐110) in mixtures are described. As first method was used the second derivative spectrophotometry with measurement in the “zero‐crossing” wavelengths. The second method, called “ratio spectrum zero crossing derivative”, is based on the simultaneous use of the first derivative of ratio spectra and measurements at “zero‐crossing” wavelengths. The two described procedures do not require any separation step. The calibrations graphs are linear up to 20 μg/mL for Tartrazine, 40 μg/mL for Sunset Yellow and 24 μg/mL for Quinoline Yellow in both methods. The methods are applied to determine these compounds in three food commercial products.
Crystal Structure and Solid State Conformation of 5‐Hydroxy‐8,9‐Dioxo‐8,9‐Seco‐α‐Cholestan‐3β‐yl Acetate
Authors: Tinant B. , Declercq J. P. , Dabovic M. , Krstic N. , Lorenc Lj. , Mihailovic M. L. J.
Published: September 2010

The molecular structure of the title compound, which might be a possible intermediate in the synthesis of 5,10:8,9‐diseco‐steroids (=steroklastanes), was determined by X‐ray analysis. Hydrogen bonding between the 5α‐hydroxyl group and the 9‐oxo function attached to the ten‐membered ring, and the presence of two conformational forms of the side‐chain in the solid state structure of 2 are established.
Crystal structure of 4‐amino‐3‐(2‐benzothiophen) butyric acid, a baclofen analogue
Authors: Pirard B. , Evrard G. , Norberg B. , Berthelot P. , Vaccher C. , Debaert M. , Durant F.
Published: September 2010

The crystal structure of 4‐amino‐3‐(2‐benzothiophen) butyric acid is reported and compared with that of 4. amino‐3‐(2‐thiényl) butyric acid. For both molecules, the γ‐aminobutyric acid (GAB) chains show almost identical conformations. C12H13NO2S, Mw = 235.0, P2'1/c, a = 17.857(2), b = 5.183(1), c = 12.587(1) Å, β = 100.07(1)°, V = 1147.1 Å3, Z = 4, Dc = 1.363 gcm−3, λ Cu K α = 1.54178 Å, μ = 22.61 cm−1, F(000) = 496.0, T = 293 °K, R = 0.075 for 1103 observed reflections (I ≥ 2 σ(I)).
CONDENSATION METHYL‐2 INDOLE / NAPHTOQUINONE‐1,4. SYNTHESE DE LA PREMIERE DIINDOLYL‐2,3 NAPHTOQUINONE ‐1,4
Authors: Henrion Jean‐Christophe , Lion Claude , Jacquet Bernard , Hocquaux Michel , Barre Gilles
Published: September 2010

Addition of two 2‐methyl indole residues to 1,4‐naphthoquinone leads to the unknown 2,3‐di‐(2‐methyl‐3‐indolyl)‐1,4‐naphthoquinone, first example of the new diindolylnaphthoquinone series.
N‐Aroyl‐N′‐Ferrocenecarbonylhydrazine complexes with transition metal(II)
Authors: Yong‐Min Liang , Xiao‐Li Wu , Zhong‐Lin Lu , Xian‐Min Li , Yong‐Xiang Ma
Published: September 2010

Two new ligands, N‐(2‐thiophenecarbonyl)‐N′‐ferrocenecarbonyl‐hydrazine (H2TF,C5H5‐FeC5H4CONHNHCOCCHCHCHS) and N‐(4‐methoxybenzoyl)‐N′‐ferrocenecarbonylhydrazine (H2MBF, C5H5,FeC5H4CONHNHCOC6H4OCH3‐p), and their complexes with some transition metals, M(TF) (MNi, Zn, Hg and Co) and M(MBF) (MMn, Co, Ni, Cu and Zn) have been synthesized and characterized by elemental analyses, UV, IR and NMR. The ligands are tetradentate and coordinate to central ion in enolic form.
A typology of the parameters influencing selectivity and activity in heterogeneous hydrogenation catalysis
Authors: Jannes G. , Puttemans J. P.
Published: September 2010

The various parameters that influence selectivity and activity in heterogeneous hydrogenation catalysis are classified, starting from the effects that are of the simplest physical nature to proceed to those that have a more pronounced chemical nature. Solvent effects, other soft interactions, support effects, site coordination and surface structure effects, electrostatic effects and electronic effects are discussed. Blurring the influence of one factor with another and synergisms have to be considered.
Determination of niobium in steel by flow injection spectrofluorimetric method
Authors: Ketai Wang , Xinguo Cheng , Xilin Liu , Zhide Hu
Published: September 2010

A room temperature flow injection spectrofluorimetric method is presented for the determination of niobium(V), based on the use of morin in the presence of cetyltrimethylammonium bromide(CTAB). Various chemical and physical variables affecting the reaction in the flow system were evaluated. The proposed method is very sensitive, with a detection limit of 3.0 ng/ml and a linear calibration graph in the range 8.0 to 240.0 ng/ml. The sampling frequency is 60 h−1. The method has been successfully applied to the determination of niobium in steel samples.
Synthesis of new lipophilic ligands and NMR measurement of their critical micellar concentration (CMC)
Authors: Nguyen M. V. D. , Brik M. E. , Ouvrard B. N. , Courtieu J. , Nicolas L. , Gaudemer A.
Published: September 2010

New lipophilic ligands are synthesized to build potential Magnetic Resonance Imaging contrast agents (MRI). Using the evolution of 1H‐NMR chemical shifts δ with concentration of monomer in D2O, the critical micellar concentration (CMC) has been measured.
Synthesis of erythromycin related macrolides
Authors: Paesen Jos , Roets Eugène , Janssen Gerard , Busson Roger , Cachet Thierry , Hoogmartens Jos
Published: September 2010

The synthesis and characterization of a number of macrolides, structurally related with erythromycin, is described. These derivatives have been previously investigated for their ability to induce contractions and to displace bound motilin in rabbit duodenum.
Membranes de microfiltration en polyhydroxybutyrate et poly‐(hydroxybutyrate‐co‐hydroxyvalerate) ‐ formation ‐ influence du pourcentage d'unités hydroxyvalerate
Authors: Mas A. , Sledz J. , Schue F.
Published: September 2010

Filtration properties and structure of polyhydroxybutyrate, poly(hydroxybutyrate‐co‐9% hydroxyvalerate) and poly(hydroxybutyrate‐co‐22% hydroxyvalerate) microfiltration membranes prepared by the inversion phase method are correlated with coagulation bath composition, non solvents percentages (% NS) (tetrahydrofuran, dimethylformamide, ethanol) and hydroxyvalerate contents (% HV). Ternary phase diagrams are discussed with respect to polymers solubility parameters and solvent‐non solvent mixtures solubility parameters just as phase separation occurs. The slow or rapid membranes formation was studied by comparing the initial solution composition to the binodal curve values. Volumic fluxes, selectivity and % NS variations were explained from this concept. Only the 9% HV copolymer presents a spherolitic structure which results from a larger cristallization velocity during this phase inversion method conditions.
Addition du méthylazide aux oléfines portant une double substitution activante geminée. Étude de la stabilité thermique des triazol‐1,2,3‐ines obtenues
Authors: Le Hetet G. , Danion‐Bougot R. , Carrié R.
Published: September 2010

Methylazide reacts with alkenes bearing two electron‐withdrawing substituents on the same sp2 carbone and leads to corresponding 1,2,3‐triazolines with these substituents in 4 position. Thermolysis of these 1,2,3‐triazolines give cycloreversion (alkene+methylazide) and aziridines after extrusion of nitrogen. In the conditions of the thermolysis, aziridine carbone‐carbone bond breaks, leading to azomethine ylids that are trapped with alkenes and give pyrrolidines.
Synthèse de 2,3,4,4a,9,9a‐hexahydro‐1h‐indéno[1,2‐b]pyrazines, analogues rigides de 3‐méthyl‐2‐phénylpiperazines et antidépresseurs potentiels
Authors: Chahboun S. , Gelbcke M. , van de Vliedt G. , Smith D. F.
Published: September 2010

The synthesis of various diastereoisomeric (±) trans‐(VIII) and cis‐2,3,4,4a,9,9a‐hexahydro‐1H‐indeno[1,2‐b] pyrazines (IX) is described, using as key step for piperazine ring formation an alkoxyphosphonium salt. Compound VIIIa was prepared as a potential serotonin reuptake inhibitor.
First total synthesis of (±)‐(1E,3E,11E)‐cembra‐1,3,11‐trien‐6‐one
Authors: Li Jing , Yue Xiangiun , Li Ying , Hou Liming , Li Weidong , Li Yulin
Published: September 2010

(±)‐(1E,3E,11E)‐Cembra‐1,3,11‐trien‐6‐one, an important marine cembrane ketone isolated from Eunicea calyculata, was first synthesized in 12 steps starting from citronellal.
Chemical Reduction and Dimerization of 1‐Chloro‐2,3,4,5‐tetraphenylborole
Authors: Braunschweig Holger , Chiu Ching‐Wen , Wahler Johannes , Radacki Krzysztof , Kupfer Thomas
Published: September 2010

As neutral isoelectronic analogues of the elusive cyclopentadienyl cation, boroles have been of interest for their prospective applications as strong Lewis acids, chromophores, and electron acceptors. Recently our group discovered a π‐nucleophilic boryl anion based on the borole system. In an effort to extend borole chemistry, we now report the molecular structure of 1‐chloro‐2,3,4,5‐tetraphenylborole (1) and its corresponding borole dianion resulting from the two‐electron reduction of 1 with KC8. The thermally induced dimerization of 1 yields an unprecedented boracyclohexadiene/borolene spiro‐bicyclic compound and the resulting dimer was fully characterized including a single‐crystal X‐ray analysis.
ChemInform Abstract: Calcium Substitution in the Y2Ba4Cu7O15+δ Superconducting Phase.
Authors: TRISCONE G. , FRANCOIS M. , GENOUD J.‐Y. , GRAF T. , JUNOD A. , OPAGISTE C. , MULLER J.
Published: September 2010

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Photoelectron Spectrum, Ionization Potential, and Heat of Formation of CCl2.
Authors: KOHN D. W. , ROBLES E. S. J. , LOGAN C. F. , CHEN P.
Published: September 2010

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Electronic Substituent and Amino Torsional Coupling Effects on Intramolecular Proton Tunneling in 5‐Aminotropolone
Authors: ENSMINGER F. A. , PLASSARD J. , ZWIER T. S.
Published: September 2010

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Hydrogen‐Bonding Effect on the Photophysical Properties of 7‐ Aminocoumarin Derivatives
Authors: LOPEZ ARBELOA T. , LOPEZ ARBELOA F. , TAPIA M. J. , LOPEZ ARBELOA I.
Published: September 2010

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Molecular Structure of N,N‐Dimethylformamide from Gas‐Phase Electron Diffraction.
Authors: SCHULTZ G. , HARGITTAI I.
Published: September 2010

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Chiral Vinylphosphine Oxides: Double Asymmetric Induction in the 1,3‐ Dipolar Cycloaddition to Chiral Nitrones. Kinetic Resolution of a Racemic Phospholene Oxide
Authors: BRANDI A. , CICCHI S. , GOTI A. , PIETRUSIEWICZ K. M.
Published: September 2010

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Stereoselective Protonation of Carbanions. Part 1. Diastereoselective Protonation of C‐H‐Activated Cyclohexane Derivatives.
Authors: GERLACH U. , HAUBENREICH T. , HUENIG S. , KEITA Y.
Published: September 2010

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Some Baeyer‐Villiger Oxidations Using a Monooxygenase Enzyme from Pseudomonas putida NCIMB 10007.
Authors: GROGAN G. , ROBERTS S. M. , WILLETTS A. J.
Published: September 2010

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Rearrangement of Alkynyl and Vinyl Carbenoids via the Rhodium(II)‐ Catalyzed Cyclization Reaction of α‐Diazo Ketones.
Authors: PADWA A. , AUSTIN D. J. , GAREAU Y. , KASSIR J. M. , XU S. L.
Published: September 2010

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Efficient Photochemical Transformation of Spiro(4.n)‐2,5‐diones to . gamma.‐Alkylidene‐γ‐butyrolactones: Its Relevance to Photostability of Fredericamycin A.
Authors: PANDEY B. , REDDY R. S. , KUMAR P.
Published: September 2010

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Crystal Structure and Magnetic Susceptibility of a Hydrocarbon Free Radical: Tris(3,5‐di‐tert‐butylphenyl)methyl.
Authors: KAHR B. , VAN ENGEN D. , GOPALAN P.
Published: September 2010

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Reactivity and Selectivity of the Methoxycarbonyl Cation in Gas‐Phase Electrophilic Aromatic Substitution
Authors: GIACOMELLO P. , PEPI F.
Published: September 2010

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Kinetics of the CHCl2 and CH2Cl Association Reactions with Molecular Oxygen Between 298 and 448 K and from 1 to 760 torr of Total Pressure
Authors: FENTER F. F. , LIGHTFOOT P. D. , CARALP F. , LESCLAUX R. , NIIRANEN J. T. , GUTMAN D.
Published: September 2010

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Rate Constants for the Addition of the Benzyl Radical to C60 in Solution.
Authors: WALBINER M. , FISCHER H.
Published: September 2010

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Electron‐Transfer Catalysis of Olefin Epoxidation with Nitrogen Dioxide (Dinitrogen Tetroxide).
Authors: BOSCH E. , KOCHI J. K.
Published: September 2010

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Substituent Modulation of Mild Fluorination of Aromatic Molecules with Cesium Fluoroxysulfate.
Authors: STAVBER S. , PLANINSEK Z. , KOSIR I. , ZUPAN M.
Published: September 2010

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Sulfenylation Reactions with Disulfides in the Presence of CCl4/Base.
Authors: HESSELBARTH F. , WENSCHUH E.
Published: September 2010

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: A Selective Synthesis of 3‐Alkynyl Perfluoroalkyl Ketones by the Trifluoroborane Etherate Mediated 1,4‐Addition Reaction of (1‐Alkynyl) diisopropoxyboranes to α,β‐Unsaturated Ketones.
Authors: TAKADA E. , HARA S. , SUZUKI A.
Published: September 2010

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: On the Reaction of Perfluoroalkyl Halides in the Presence of Alcohols and Bases.
Authors: MEINERT H. , KNOBLICH A. , MADER J. , BRUNE H. A.
Published: September 2010

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: ω‐Mono N‐Alkylation of Linear Tetraamines Through the Reaction of Aldehydes and Ketones on Their Tricarbonyl Chromium, Molybdenum, or Tungsten Complexes.
Authors: YAOUANC J.‐J. , LE BRIS N. , CLEMENT J.‐C. , HANDEL H. , DES ABBAYES H.
Published: September 2010

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: A Useful Synthesis of ω‐Iodoperfluoroalkanesulfonyl Fluorides and Perfluoroalkane‐α,ω‐bissulfonyl Fluorides.
Authors: QIU W. , BURTON D. J.
Published: September 2010

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Study on the α‐Sulfenylation of 3‐Sulfolenes.
Authors: CHOU T.‐S. , CHANG S.‐Y.
Published: September 2010

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Synthesis of 4‐Benzylpyrazoles (II) ‐ (IV), (VI), (VII) from Monobenzylmalononitrile (I).
Authors: ECHEVARRIA A. , ELGUERO J.
Published: September 2010

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: An Efficient Conversion of 2′‐Hydroxychalcones (I) to Flavones (II).
Authors: HANS N. , GROVER S. K.
Published: September 2010

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Pyrazolo(1,2‐a)‐1,2,3‐triazinium‐4‐olate.
Authors: BLAKE A. J. , MCNAB H. , MORROW M. , RATAJ H.
Published: September 2010

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.