bluuebunny/crossref_metadata_2025_split huggingface dataset:
A SYNTHETIC APPROACH TO ANNULENOANNULENOANNULENE, AN ANTHRACENE-LIKE SYSTEM
Authors: Iyoda Masahiko , Ogura Fumio , Akiyama Shuzo , Nakagawa Masazumi 
Published: July 2006

Abstract
An improved synthesis of tetra-t-butylhexakisdehydro[18]annuleno[26]annulenedione, a key compound for the synthesis of the tricyclic annulenoannulenoannulene, was carried out. Two dideuterio derivatives of the [18]annuleno[26]annulenedione has been synthesized. An attempted synthesis of tetra-t-butyloctakisdehydro[18]annuleno[18]annuleno[18]annulene is described.
THE SYNTHESIS OF DIBENZO DERIVATIVES OF PENTATRIDECA-, PENTAPENTADECA-, PENTAHEPTADECA-, AND PENTANONADECAFULVALENES
Authors: Morita Noboru , Asao Toyonobu , Ojima Juro , Hamai Satoru 
Published: July 2006

Abstract
The title fulvalenes were synthesized by the reaction of the corresponding large membered annulenones with diphenyleneketene and the 1H-NMR spectra were discussed in connection with their tropicity.
MORPHOLOGICAL CHANGE INDUCED BY INTERMEMBRANE INTERACTION OF SYNTHETIC PEPTIDE LIPIDS BEARING CATIONIC AND NONIONIC HEAD GROUPS
Authors: Murakami Yukito , Nakano Akio , Kikuchi Jun-ichi , Takaki Toshihiko , Uchimura Katsuya 
Published: July 2006

Abstract
The intermembrane lipid transfer between two different aggregates individually composed of N,N-ditetradecyl-Nα-(6-quinoylaminohexanoyl)-l-alaninamide and N,N-dihexadecyl-Nα-[(6-trimethylammonio)hexanoyl]-l-alaninamide bromide induced the morphological change of individual aggregates and ultimately resulted in the formation of small vesicles as confirmed by electron microscopy and differential scanning calorimetry.
ELIMINATION OF SAMPLE CHARGING IN UV PHOTOEMISSION FROM SINGLE CRYSTALS OF SEVERAL POLYCYCLIC HYDROCARBONS
Authors: Schmid Bernhard M , Sato Naoki , Inokuchi Hiroo 
Published: July 2006

Abstract
UV photoemission spectra of single crystals of polycyclic hydrocarbons were measured using two methods, 1) covering a sample with a thin layer of gold and 2) inducing photoconduction in the sample with low-energy light, to eliminate sample charging. Their ionization thresholds obtained are all smaller than the values for corresponding polycrystalline thin films.
SYNTHESIS OF 1-METHOXY-2-OXOALKYL PHENYL SULFIDES AND THEIR SYNTHETIC APPLICATION TO 3-SUBSTITUTED FURANS
Authors: Mandai Tadakatsu , Takeshita Masahiro , Mori Kazuhito , Kawada Mikio , Otera Junzo 
Published: July 2006

Abstract
1-Methoxy-2-oxoalkyl phenyl sulfides were newly synthesized from methoxy(phenylthio)methane and various N,N-dimethylalkanamides. Synthetic application of the compounds thus obtained to several 3-substituted furans also is reported.
REDISPERSION OF COBALT METAL PARTICLES IN Co/TiO2 CATALYST AND ITS EFFECTS ON PROPENE HYDROGENATION
Authors: Takasaki Seiji , Takahashi Kaoru , Suzuki Hideo , Sato Yuzuru , Ueno Akifumi , Kotera Yoshihide 
Published: July 2006

Abstract
The rate of propene hydrogenation on Co/TiO2 catalyst, prepared by an alkoxide technique,was significantly enhanced when the catalyst was reduced by hydrogen at 700°C. However, over the catalyst prepared by an usual impregnation method, the enhancement of the rate was not observed at any reduction temperatures. The effects of reduction temperatures on the rate of propene hydrogenation were elucidated by redispersion of metallic cobalt particles.
PREPARATION OF (Z,E,E)-HUMULENE. AN IMPORTANT INTERMEDIATE FOR BIOGENESIS OF POLYCYCLIC SESQUITERPENES
Authors: Shirahama Haruhisa , Arora Gurdial S , Matsumoto Takeshi 
Published: July 2006

Abstract
(Z,E,E)-Humulene was prepared from (E,E)-6,7-epoxyhumula-2,9-dien-12-ol which was obtained from (E,E,E)-humulene 6,7-epoxide by oxidation with SeO2-t-BuOOH.
LAURENCIAL, A NOVEL SESQUITERPENE α,β-UNSATURATED ALDEHYDE FROM THE RED ALGA LAURENCIA NIPPONICA YAMADA
Authors: Kurata Kazuya , Suzuki Teruaki , Suzuki Minoru , Kurosawa Etsuro , Furusaki Akio , Matsumoto Takeshi 
Published: July 2006

Abstract
Laurencial, a novel sesquiterpene which possesses spiro[4.5]decane skeleton with α,β-unsaturated aldehyde moiety, has been isolated from the title alga and its structure was determined by X-ray crystallographic analysis.
LITHIUM 1,8-DIAZABICYCLO[5.4.0]UNDEC-7-EN-6-IDE AS A NOVEL CARBON DIOXIDE CARRIER
Authors: Matsumura Noboru , Ohba Takayuki , Yoneda Shigeo 
Published: July 2006

Abstract
Lithium 1,8-diazabicyclo[5.4.0]undec-7-en-6-ide (1) has underwent the insertion of carbon dioxide and the resulting lithium 6-carboxylato complex (2) transfered the carboxylato moiety to active methylene compounds (3) such as p-nitroacetophenone, acetophenone, p-methoxyacetophenone, and s-benzylthioacetate under mild conditions.
NOVEL REDUCTION OF CHLORINE ADDUCTS OF ARYL AND ALKYL SELENIDES WITH DIMETHYL SULFOXIDE
Authors: Nakanishi Waro , Sakaue Akira , Ikeda Yoshitsugu , Iwamura Hiizu 
Published: July 2006

Abstract
The adducts of chlorine with diaryl selenides such as selenanthrene, diphenyl selenide, and selenoxanthone have been found to be reduced to the corresponding selenides in dimethyl sulfoxide forming chloromethyl methyl sulfoxide and hydrogen chloride. Similarly, dimethyl selenide dichloride was reduced to dimethyl selenide in the presence of a base.
MAGNETIC FIELD EFFECT ON THE PHOTOINDUCED ELECTRON TRANSFER REACTION BETWEEN DUROQUINONE AND AROMATIC AMINES IN SDS MICELLAR SOLUTION
Authors: Tanimoto Yoshifumi , Shimizu Katsuko , Udagawa Hiroko , Itoh Michiya 
Published: July 2006

Abstract
The magnetic field effect(&lt;80 mT) on the photoinduced electron transfer reaction between duroquinone and aromatic amines in SDS micellar solutions was studied by a nanosecond laser flash photolysis technique. The relative yield of diphenylamine cation free radical increases about 5 % at 79 mT, while that of triphenylamine cation free radical is almost magnetic field independent.
ACTIVE CARBON-SUPPORTED COPPER(I) CHLORIDE AS CARBON MONOXIDE SOLID ADSORBENT
Authors: Hirai Hidefumi , Wada Keiichiro , Komiyama Makoto 
Published: July 2006

Abstract
An active carbon-supported copper(I) chloride is prepared as a solid adsorbent for carbon monoxide. It adsorbs carbon monoxide at 20°C under 1 atm and releases almost all of the adsorbed carbon monoxide by elevating the temperature to 120°C under 1 atm, or by reducing the pressure to 0.4 mmHg at 20°C.
A HIGH RESOLUTION 13C NMR STUDY OF SILK FIBROIN IN SOLID STATE BY THE CROSS POLARIZATION-MAGIC ANGLE SPINNING METHOD: CONFORMATIONAL CHARACTERIZATION UTILIZING CONFORMATION-DEPENDENT 13C CHEMICAL SHIFTS
Authors: Saitô Hazime , Iwanaga Yoshihiro , Tabeta Ryoko , Narita Mitsuaki , Asakura Tetsuo 
Published: July 2006

Abstract
Solid state high resolution 13C NMR spectra of the silk fibroins from Bombyx mori (B. mori) and Philosamia cynthia ricini (P. c. ricini) together with those of appropriate model peptides were recorded by cross polarization-magic angle spinning method. We found by examining 13C chemical shifts that anti-parallel β-sheet and α-helix forms were straightforwardly ascribed to the fibroins from B. mori and P. c. ricini, respectively.
CU2+-INDUCED BILAYER FORMATION OF SINGLE-CHAIN TELOMER SURFACTANTS IN DILUTE AQUEOUS SOLUTION
Authors: Yamada Kimiho , Shosenji Hideto , Ihara Hirotaka , Hotta Osamu 
Published: July 2006

Abstract
A large enhancement (35 to 480 fold) of the aggregate weight was observed in the presence of Cu2+ for single-chain telomer surfactants containing the hydroxamic acid group in water. Electron microscopy indicated a drastic morphological change from micelles to multi-lamellar vesicles was induced by Cu2+.
SELECTIVE FORMATION OF 1-BUTENE IN ELIMINATION OF AMMONIA FROM 2-BUTANAMINE CATALYZED BY ZIRCONIUM OXIDE
Authors: Satoh Akira , Hattori Hideshi , Tanabe Kozo 
Published: July 2006

Abstract
Zirconium oxide catalyzed elimination of ammonia from 2-butanamine to yield 1-butene as the major product. The selective formation of 1-butene was also observed for ZnO, La2O3, ThO2, and MgO, though considerable formation of C2 and C5 hydrocarbons occurred.
SELECTIVE [π6s + π2s] CYCLOADDITION OF A COORDINATED CYCLIC TRIENE WITH ALKYNES. FORMATION OF BICYCLO[4.2.2]DECATRIENE SKELETON ON A Ru(0) TEMPLATE
Authors: Itoh Kenji , Mukai Katsunori , Nagashima Hideo , Nishiyama Hisao 
Published: July 2006

Abstract
The 1,3,5-cyclooctatriene ligand of Ru(1-6-η-cyclooctatriene)(1-2:5-6-η-cyclooctadiene) reacted with ethyne to yield Ru(η4, η2-bicyclo[4.2.2]deca-2,4,7-triene)(1-2:5-6-η-cyclooctadiene) by way of formal [η6s + η2s] cycloaddition with high selectivity. Propyne or 1-butyne gave analogous bicylodecatriene complexes.
CRYSTAL STRUCTURE OF BIS(r-1,c-3,c-5-CYCLOHEXANETRIAMINE)COBALT(III) IODIDE
Authors: Ishii Minoru , Umehara Michiko , Nomura Teruo , Nakahara Masayoshi 
Published: July 2006

Abstract
The molecular structure of the title compound was determined by X-ray diffraction. Six six-membered chelate rings formed by the r-1,c-3,c-5-cyclohexanetriamine were found to take chair-conformations. The complex ion had an approximate D3 symmetry. The presence of the six-membered chelate rings did not introduce much distortion on the octahedral geometry of the complex ion.
ELECTRIC FIELD-INDUCED TRANSIENT PROCESS OF POLY(p-STYRENESULFONATE) IN AQUEOUS SOLUTIONS AS STUDIED BY REVERSING-PULSE ELECTRIC BIREFRINGENCE TECHNIQUE: EFFECT OF COUNTERIONS AND OTHER ADDITIVES
Authors: Yamaoka Kiwamu , Ueda Kazuyoshi 
Published: July 2006

Abstract
By measuring the reverse and decay signals of poly(p-styrenesulfonate) in aqueous solutions which contain either Na+, Ca2+, or Mg2+ as the counterion, usefulness of the title technique was demonstrated. The effect of these ions and other additives like 9-aminoacridinium and glycerol on the transient relaxation times was quite appreciable.
PHOTOOXIDATION OF d-FRUCTOSE WITH IRON(III) CHLORIDE UNDER AEROBIC CONDITION
Authors: Araki Koji , Sakuma Masato , Shiraishi Shinsaku 
Published: July 2006

Abstract
d-Fructose is oxidatively degraded to d-erythrose with iron(III) chloride by photo-irradiation through Pyrex under aerobic as well as anaerobic condition. The reaction is suggested to proceed via formation of iron(III)-d-fructose complex and subsequent photo-redox process.
2,5-DI-t-BUTYL-7-CYANONORCARADIENE IN EQUILIBRIUM WITH THE CYCLOHEPTATRIENE FORM: THE FIRST OBSERVATION OF exo AND endo ORIENTATION OF THE 7-CYANO SUBSTITUENT IN THE NORCARADIENE FORM
Authors: Takeuchi Ken’ichi , Kitagawa Toshikazu , Senzaki Yoshihide , Fujimoto Hiroshi , Okamoto Kunio 
Published: July 2006

Abstract
The 1H NMR study showed that the endo-cyano isomer of the title compound is slightly more stable than the exo-cyano isomer with a population ratio of 22:17 at −120°C. In the cycloheptatriene form, the axial-cyano conformer is much less stable than the equatorial counterpart with a ratio of 1.7:59. The results can account for the marked stabilization in syn-11-cyanotricyclo[4.4.1.0]undeca-2,4-diene by the syn-cyano group.
DETERMINATION OF EXPOSED SURFACE AREA OF V2O5 ON V2O5/Al2O3 CATALYSTS BY TPD OF NH3
Authors: Suzuki Kinya , Hattori Tadashi , Miyamoto Akira , Murakami Yuichi 
Published: July 2006

Abstract
Exposed surface area of V2O5 on V2O5/Al2O3 catalysts was determined by temperature programmed desorption of NH3. The exposed surface was mostly composed of (010) face of V2O5 at low V2O5 content, but the exposed surface areas of other faces were comparable to that of (010) face at high V2O5 content.
REDOX-SWITCHED CROWN ETHERS. CROWN-CRYPTAND INTERCONVERSION COUPLED WITH REDOX OF THIOL GROUPS
Authors: Shinkai Seiji , Inuzuka Kenichi , Manabe Osamu 
Published: July 2006

Abstract
A crown ether capped with a redox-functionalized thiol-disulfide couple was synthesized. The oxidized form with an ionophoric cap binds K+, Rb+, and Cs+ more efficiently than the reduced form with two lariat-type groups. This is the first example of the redox-switched interconversion between crown and cryptand.
HIGH OXIDIZING ACTIVITY OF 8-AZA-3,10-DIMETHYL ISOALLOXAZINE (8-AZAFLAVIN)
Authors: Yano Yumihiko , Yatsu Isao , Oya Eiichi , Ohshima Masashi 
Published: July 2006

Abstract
8-Azaflavin was synthesized for the first time, and it was found that 8-azaflavin is much more reactive (&gt;104) than 3,10-dimethylisoalloxazine for oxidation of thiols in aqueous solution. Catalytic efficiency for disulfides synthesis was also examined under aerobic conditions.
SONIC CHEMILUMINESCENCE OF LUMINOL FOR THE DETERMINATION OF ULTRATRACES OF COBALT(II)
Authors: Yamada Masaaki , Suzuki Shigetaka 
Published: July 2006

Abstract
Ultrasonically induced chemiluminescence of luminol in an aqueous alkaline solution is described for the determination of cobalt(II). This novel method is capable of detecting cobalt(II) more sensitively than any other method with a detection limit of 0.07 pg and more selectively than any other chemiluminescence method.
A RADICAL DEOXYGENATION OF PRIMARY ALCOHOLS BY USE OF TRI-n-BUTYLTIN HYDRIDE-SODIUM IODIDE, AND ITS APPLICATION TO A RADICAL CYCLIZATION
Authors: Ueno Yoshio , Tanaka Chie , Okawara Makoto 
Published: July 2006

Abstract
Primary alcohols are deoxygenated to hydrocarbons via tosylates with tri-n-butyltin hydride-sodium iodide under mild radical conditions; the method is useful for the preparation of cyclic compounds from acyclic ones possessing primary hydroxyl and olefinic groups by reductive cyclization.
EFFECT OF DOPING OF ClO4− ON THE PHOTOELECTROCHEMICAL PROPERTIES OF POLYACETYLENE
Authors: Nosaka Yoshio , Norimatsu Kohji , Miyama Hajime 
Published: July 2006

Abstract
The effect of electrochemical doping on the photoelectrochemical properties was studied for p-type semiconducting trans-polyacetylene. The magnitude of photocurrent, the response spectrum, the electrode capacitance and resistance were measured and discussed in terms of the effect of the doping.
CIDNP STUDY OF PHOTO-INDUCED RADICAL REACTION. EFFECT OF APPLIED MAGNETIC FIELD
Authors: Maruyama Kazuhiro , Hayami Jun-ichi , Otsuki Tetsuo 
Published: July 2006

Abstract
The strength of the applied magnetic field was found to be an important factor in detecting the CIDNP signals in the photo-induced radical reaction. The effect of the magnetic field can be understood on the basis of the radical pair theory.
AN EFFICIENT SYNTHESIS OF α-KETO AMIDES VIA REACTION OF α-(N-METHYLANILINO)-ACETONITRILE WITH ESTERS FOLLOWED BY HYDROLYSIS USING COPPER (II) ACETATE
Authors: Takahashi Kazumasa , Shibasaki Kenichiro , Ogura Katsuyuki , Iida Hirotada 
Published: July 2006

Abstract
An efficient sequence proposed for the conversion of esters to α-keto amides involves the reaction of α-(N-methylanilino)-acetonitrile with esters to afford β-hydroxy-α-cyanoenamines of which hydrolysis using copper (II) acetate gives the corresponding α-keto amides in good yields.
PHOTOLYSES OF BIS(2-THIOPHENECARBONYL) AND BIS(3-THIOPHENECARBONYL) PEROXIDES IN BENZENE. PRODUCTION OF BIPHENYL FROM THE SOLVENT BENZENE CONTROLLED BY THE PHOTOLYSIS RATE
Authors: Urano Toshiyuki , Kitamura Akihide , Sakuragi Hirochika , Tokumaru Katsumi 
Published: July 2006

Abstract
Direct and sensitized photolyses of bis(2-thiophenecarbonyl) (2-TPO) and bis(3-thiophenecarbonyl) peroxide (3-TPO) in benzene afforded biphenyl derived solely from the solvent among the products. The yield of biphenyl depended upon the rate with which the radical intermediates were generated from the peroxides in sufficiently high concentrations to dimerize.
A NOVEL METHOD FOR THE ONE-STEP SYNTHESIS OF N-ALKYL IMIDES BY THE USE OF 1,1′-DIMETHYLSTANNOCENE
Authors: Mukaiyama Teruaki , Ichikawa Junji , Toba Makoto , Asami Masatoshi 
Published: July 2006

Abstract
Various N-alkyl imides are easily prepared in good yields under nearly neutral conditions from equimolar amounts of cyclic acid anhydrides and primary amines by the use of 1,1′-dimethylstannocene.
FACILE PREPARATION OF PLATINUM SOLS BY SODIUM BOROHYDRIDE REDUCTION AND ITS EVALUATION IN THE PHOTOSENSITIZED REDUCTION OF WATER TO HYDROGEN
Authors: Okuno Yohmei , Chiba Yukihiro , Yonemitsu Osamu 
Published: July 2006

Abstract
Colloidal platinum prepared from K2PtCl4 by NaBH4, reduction in basic solution showed marked efficiency and satisfactory reproducibility in the hydrogen evolution reactions with a Ru(bpy)3Cl2/MV/EDTA model system. Examinations of electron microscopy indicated obvious relations between the activity and size of particles. Cyclodextrins as a support tend to stabilize the colloids, probably by retarding its aggregation.
CATALYTIC REDUCTION OF HYDRAZINE TO AMMONIA BY THE REDUCED SPECIES OF [Mo2Fe6S8L9]3− AND [Fe4S4L4]2− (L=SPh, SCH2CH2OH)
Authors: Hozumi Yoshiyuki , Imasaka Yoshinobu , Tanaka Koji , Tanaka Toshio 
Published: July 2006

Abstract
Hydrazine can be reduced to NH3 catalytically in the presence of [Mo2Fe6S8L9]3− or [Fe4S4L4]2− (L=SPh, SCH2CH2OH) in H2O or MeOH/THF by the controlled potential electrolysis. The maximum current efficiency in the electrochemical reduction of N2H4 attains 97% and the turnover number of NH3 produced per 1 h is 23 in MeOH/THF.
THE WATER GAS SHIFT REACTION CATALYZED BY RUTHENIUM CARBONYL COMPLEXES
Authors: Tanaka Koji , Morimoto Masaru , Tanaka Toshio 
Published: July 2006

Abstract
A new preparative method of [Ru(bpy)2 (CO)Cl]+ (bpy=2,2′-bipyridine) and the water gas shift reaction (WGSR) catalyzed by this complex are described. A cyclic mechanism for the WGSR is proposed to proceed via [Ru(bpy)2(CO)2]2+, [Ru(bpy)2(CO) (COOH)]+, and [Ru(bpy)2(CO)H]+ as intermediates successively; the former two were isolated.
3,7-DIHALO-2H,6H-BENZO[1,2-b:4,5-b′]DITHIOPHENE-2,6-DIONE. NEW WURSTER-TYPE ACCEPTORS ISOELECTRONIC WITH 2,6-ANTHRAQUINONE
Authors: Nakatsuka Masakatsu , Nakasuji Kazuhiro , Murata Ichiro , Watanabe Iwao , Saito Gunzi , Enoki Toshiaki , Inokuchi Hiroo 
Published: July 2006

Abstract
We describe the syntheses and properties of the new Wurster-type acceptors, 3,7-dihalo-2H,6H-benzo[1,2-b:4,5-b′]dithiophene-2,6-diones (2a) and (2b), which have C2h molecular symmetry with two sulfur atoms, together with the electrical resistivities of their CT complexes.
CONFORMATIONAL INVERSION OF 2,2′-BIPYRIDYL N,N′-DIOXIDE (bpdo) CHELATE RINGS IN THE [Cr(acetylacetonato)(bpdo)2]2+ ION
Authors: Kanno Hideaki , Shimotori Tadashi , Utsuno Shunji , Fujita Junnosuke 
Published: July 2006

Abstract
The [Cr(acetylacetonato)(bpdo)2](ClO4)2·H2O complex (bpdo= 2,2′-bipyridyl N,N′-dioxide) crystallizes in the lel2 (Δ(λλ), Λ(δδ)) isomer. This isomer isomerizes to the lel·ob (Δ(λδ), Λ(δλ)) isomer in aqueous solution with the rate constant of 3.31×10−3 s−1 at 295.2 K, the rate constant for racemization (Δ\ightleftarrowsΛ) being 1.08×10−4 s−1 at 295.2 K.
STRUCTURE OF MUKAADIAL, A MOLLUSCICIDE FROM THE WARBURGIA PLANTS
Authors: Kubo Isao , Matsumoto Takeshi , Kakooko Adrian B , Mubiru Nasani K 
Published: July 2006

Abstract
The structure of a new sesquiterpene dialdehyde, mukaadial, isolated from Warburgia stuhlmannii and W. ugandensis and possessing molluscicidal property, has been established by means of spectroscopic and chemical data.
CHEMICAL SYNTHESIS OF DEOXYSEPIAPTERIN
Authors: Baur Ralph , Sugimoto Takashi , Pfleiderer Wolfgang 
Published: July 2006

Abstract
A chemical synthesis of the yellow eye pigment deoxysepiapterin of Drosophila melanogaster has been achieved from 7-alkylthio pteridines by homolytic nucleophilic acylation at C-6 and subsequent hydrolyses to 6-propionylpterin derivatives followed by desulfurizations with copper–aluminum alloy.
STRUCTURE AND THERMAL RACEMIZATION OF 1,1,1-TRIS(5-AMINO-2-AZA-PENTYL)ETHANECOBALT(III) COMPLEX
Authors: Tomioka Kanji , Kashihara Takaki , Sakaguchi Ushio , Yoneda Hayami 
Published: July 2006

Abstract
The chiral form of the title complex ion, [Co(stn)]3+, has been found to racemize thermally both in the solid state and in solution, and the racemization rates have been measured. The structure of [Co(stn)]Cl3·3.5H2O has been determined and used to discuss the origin of this facile racemization.
COMPLEX FORMATION OF MODIFIED CYCLODEXTRINS WITH ORGANIC SALTS IN ORGANIC SOLVENTS
Authors: Komiyama Makoto , Yamamoto Hiroshi , Hirai Hidefumi 
Published: July 2006

Abstract
Heptakis(2,3,6-tri-O-acetyl)-β-cyclodextrin and heptakis(2,3,6-tri-O-phenylcarbamoyl)-β-cyclodextrin form complexes in chloroform and benzene with various ammonium, alkali metal, and alkaline earth metal salts of 2,4,6-trinitrophenol, 4-nitrophenol, methyl orange, and patent blue. The magnitude of complex formation largely depends on the metal cation of the salt.
A NEW METHOD FOR THE STEREOSELECTIVE SYNTHESIS OF NUCLEOSIDES FROM ACYCLIC EPOXY ALDEHYDES
Authors: Miwa Tetsuo , Narasaka Koichi , Mukaiyama Teruaki 
Published: July 2006

Abstract
A new method for the stereoselective synthesis of nucleosides starting from acyclic epoxy aldehydes is developed. 2′-Deoxy-α-Dl-ribonucleosides and α-l-lyxonucleosides are prepared by the reactions of the corresponding epoxy aldehydes with stannous salts of nucleoside bases utilizing stannous bromide as an activating reagent.
HPLC SEPARATION OF KETO AND ENOL TAUTOMERS OF SEVERAL KETONES AT LOW TEMPERATURES
Authors: Moriyasu Masataka , Kato Atsushi , Hashimoto Yohei 
Published: July 2006

Abstract
High-performance liquid chromatography of some ketones at −20–−60 °C achieved the separation of keto and enol tautomers. The ratios of keto and enol forms in different conditions were determined for β-diketones. Cyclohexanone also gave a small peak which was possibly attributed to enol tautomer along with a large peak of keto tautomer.
ASSOCIATION OF THE TRIS(1,10-PHENANTHROLINE)IRON(II) CATION WITH A CATIONIC ALKYLTRIMETHYLAMMONIUM MICELLE
Authors: Tachiyashiki Satoshi , Yamatera Hideo 
Published: July 2006

Abstract
The rate of dissociation of [Fe(phen)3]2+ increased in cationic micellar solutions of alkyltrimethylammonium bromide, CnH2n+1N(CH3)3Br (n=8–16). The complex ion is very probably incorporated into the micelle together with the counter ion.
PYRIDAZINO[2,3-b]BENZO-1,2,4-TRIAZINE. A NEW HETEROCYCLE AND A NEW STABLE FREE RADICAL
Authors: Albini Angelo , Bettinetti Gian Franco , Minoli Giovanna , Soldi Teresa Fulle 
Published: July 2006

Abstract
The preparation of the new stable free radical 2,a derivative of the previously unreported pyridazino[1,2-b]benzo-1,2,4-triazine, and some of its chemical properties are described.
VANADIUM–CATECHOLATO COMPLEXES AS REACTION INTERMEDIATES IN THE VANADIUM CATALYZED OXYGENATION OF CATECHOLS
Authors: Tatsuno Yoshitaka , Tatsuda Masanobu , Otsuka Sei , Tani Kazuhide 
Published: July 2006

Abstract
New vanadium–catecholato complexes containing a Schiff base ligand, [V(salen)(DBcatH)2]·1/2 CH2Cl2, [V(salen)(DBpyrH2)2]·1/2 H2O, [V(salen)(cat)]·1/10 CH2Cl2, [V(salen)(Bcat)]·H2O, [V(saldpt)(DBcatH)]·CH2Cl2 were prepared and characterized by elemental analyses and spectroscopic methods. Their relationship to the vanadium(III or IV)-catalyzed oxygenation of catechol was discussed.
A NOVEL METHOXYMETHYLATION OF ARYL BROMIDE BY METHOXYMETHYLTRIBUTYLTIN IN THE PRESENCE OF PALLADIUM COMPLEX
Authors: Kosugi Masanori , Sumiya Takashi , Ogata Toshimi , Sano Hiroshi , Migita Toshihiko 
Published: July 2006

Abstract
The reaction of aryl bromides with methoxymethyltributyltin in the presence of a catalytic amount of dichlorobis(triphenylphosphine)palladium was found to give arylmethyl methyl ether. The reaction is a novel aromatic methoxymethylation.
PREPARATION OF POROUS, AMORPHOUS, AND ULTRAFINE TiO2 PARTICLES BY CHEMICAL VAPOR DEPOSITION
Authors: Komiyama Hiroshi , Kanai Takashi , Inoue Hakuai 
Published: July 2006

Abstract
Ultrafine TiO2 particles were prepared by chemical vapor deposition of titanium tetraisopropoxide. The particle formation reaction, being catalyzed by the TiO2 deposit on the reactor wall, took place even at as low a temperature as 250°C, according to the stoichiometric relation of Ti(C3H7O) →TiO2 + 4C3H6 + 2H2O. The TiO2 particles were amorphous and porous, the specific surface area of which reached 300 m2/g.