bluuebunny/crossref_metadata_2025_split huggingface dataset:
OXIDATIVE TRAPPING OF TRANSIENT THIAZOLIUM-ALDEHYDE ADDUCTS BY INTRAMOLECULAR FLAVIN. FLAVIN-THIAMINE BISCOENZYME MODEL
Authors: Shinkai Seiji , Yamashita Takaharu , Manabe Osamu 
Published: July 2006

Abstract
A biscoenzyme which has within a molecular structure both flavin and thiazolium ion was synthesized. In the presence of the biscoenzyme and hexadecyltrimethylammonium bromide (CTAB) micelle, aldehydes were efficiently converted to carboxylic acids and the acyloin condensation products were scarcely detected. Thus, the biscoenzyme serves as an interesting model system for pyruvate dehydrogenase.
EXCIMER OF CONFORMATIONALLY FLEXIBLE MOLECULES: DIETHYL p-PHENYLENEDIACRYLATE AND METHYL 4-(β-METHOXYCARBONYLVINYL)-α-CYANOCINNAMATE
Authors: Sakamoto Munenori , Huy Sam , Nakanishi Hachiro , Nakanishi Fusae , Yurugi Tadashi , Hasegawa Masaki 
Published: July 2006

Abstract
Conformationally flexible molecules of diethyl p-phenylenediacrylate (1) and methyl 4-(β-methoxycarbonylvinyl)-α-cyanocinnamate (2) exhibit excimer emission in concentrated solutions. The excimer of 1 is formed via excitation of the ground state aggregates of 1. In crystalline state, only 2, which has the crystal structure of B-type in Stevens’ classification, being different from the crystal structure (A-type) of 1, gives excimer emission. The stack-type structure is proposed for the excimers of 1 and 2.
RHODIUM CARBONYL-CATALYZED CARBONYLATION OF ACETYLENES IN ALCOHOL. SYNTHESIS OF 5-ALKOXY-2(5H)-FURANONES
Authors: Mise Takaya , Hong Pangbu , Yamazaki Hiroshi 
Published: July 2006

Abstract
Reactions of internal acetylenes with CO in alcohols gave 5-alkoxy-3,4-disubstituted-2(5H)-furanones in good yields in the presence of rhodium catalysts containing basic alkali metal salts, e.g., Rh4(CO)12 or RhCl3·3H2O in combination with sodium carbonate or sodium acetate.
PHOTOCHEMICAL REACTION OF EPOXYNAPHTHOQUINONE WITH AMINE. ITS DEPENDENCY ON SOLVENT STUDIED BY CIDNP TECHNIQUE
Authors: Maruyama Kazuhiro , Otsuki Tetsuo , Osuka Atsuhiro , Suzuki Hitomi 
Published: July 2006

Abstract
The oxirane ring of epoxynaphthoquinones was reductively opened upon irradiation in the presence of triethylamine and, in addition, a cross adduct was obtained in the reaction with N,N-dimethylaniline in benzene. CIDNP signals observed in the reaction with N,N-dimethylaniline were interpreted as evidence for hydrogen atom abstraction in benzene and for electron transfer in acetone and acetonitrile.
REVISED METHOD FOR CALCULATION OF GROUP ELECTRONEGATIVITIES
Authors: Inamoto Naoki , Masuda Shozo 
Published: July 2006

Abstract
Since Wilmshurst’s method for calculation of group electronegativity has some defects, the revised method was proposed for counting the number of valence electrons (n*) on the central atom A in radical −AB, and group electronegativities of more than 150 substituents were reasonably calculated.
A NEW REACTION OF AZIDOFORMATE WITH UNSATURATED ETHERS CATALYZED BY DICHLORO-BIS(BENZONITRILE)PALLADIUM
Authors: Migita Toshihiko , Saitoh Nobuhiro , Iizuka Hisao , Ogyu Chikataka , Kosugi Masanori , Nakaido Setsuko 
Published: July 2006

Abstract
In the presence of dichloro-bis(benzonitrile)palladium, azidoformate reacts with various unsaturated ethers to give 1-alkoxy-1-carboalkoxyiminoalkanes. Reaction with 1-methyl-2-propenyl ether was accompaied by methyl migration, giving 1-alkoxy-1-carboalkoxyimino-2-methylpropane.
REPARATION OF HOMOLEPTIC t-BUTYL ISOCYANIDE COMPLEX OF Mo(0) AND REACTIONS WITH ALKYL HALIDES. MOLECULAR STRUCTURE OF [Mo(t-BuN=CCH2Ph) (t-BuNC)5]Br
Authors: Yoshida Toshikatsu , Hirotsu Ken , Higuchi Taiichi , Otsuka Sei 
Published: July 2006

Abstract
Hexakis(t-butyl isocyanide)molybdenum(0) was prepared and reacted with alkyl halides to give η2-iminoacyl Mo(II) complexes. An X-ray structural study of the product, [Mo(t-BuN=CCH2Ph)(t-BuNC)5]Br revealed a distorted octahedral molecular structure, regarding the iminoacyl ligand as an unidentate ligand. An intensive bending (137°) of the t-butyl isocyanide trans to the η2-iminoacyl ligand was salient.
A NEW SYNTHETIC IONOPHORE EXHIBITING SELECTIVE Li+ TRANSPORT
Authors: Hiratani Kazuhisa 
Published: July 2006

Abstract
A noncyclic polyether, which contains 1,3-propylene oxide chain unit and both 8-quinolyl and o-carboxylphenyl terminal groups, exhibits highly selective transport of lithium ion for sodium and potassium ion species which are all together in aqueous solutions, against the concentration gradient through chloroform liquid membrane.
ISOLAURALLENE, A NEW NONTERPENOID C15-BROMOALLENE, FROM THE RED ALGA LAURENCIA NIPPONICA YAMADA
Authors: Kurata Kazuya , Furusaki Akio , Suehiro Katsunao , Katayama Chuji , Suzuki Teruaki 
Published: July 2006

Abstract
Isolaurallene (1), a new nonterpenoid C15-bromoallene, was isolated from the red alga Laurencia nipponica Yamada. The structure of this compound was determined by its spectral properties and X-ray diffraction analysis.
RADIATION-INDUCED HYDROXYLATION OF THYMINE SENSITIZED BY NITRO COMPOUNDS IN N2O-SATURATED AQUEOUS SOLUTION
Authors: Wada Takeshi , Ide Hiroshi , Nishimoto Sei-ichi , Kagiya Tsutomu 
Published: July 2006

Abstract
Hydroxylation of thymine (1)to give thymine glycol (3) is remarkably promoted by the addition of nitro compounds (2a–f) in the γ-radiolysis of the N2O-saturated aqueous solution, although overall decomposition of 1 is depressed to some extent. The G-value of 3, increases linearly with increasing the one-electron reduction potential of 2a-f.
PHOTOCATALYTIC HYDROGEN EVOLUTION FROM WATER USING ZINC SULFIDE AND SACRIFICIAL ELECTRON DONORS
Authors: Yanagida Shozo , Azuma Takayuki , Sakurai Hiroshi 
Published: July 2006

Abstract
Irradiation(λ≥290 nm) of an aqueous suspension of ZnS prepared in situ from Na2S and ZnCl2 or ZnSO4 leads to the photocatalytic H2 evolution in the presence of sacrificial electron donors such as tetrahydrofuran, methanol, and ethanol.
CO-EXTRACTION-SPECTROPHOTOMETRIC DETERMINATION OF BERBERINE WITH QUININE AND BROMOPHENOL BLUE
Authors: Sakai Tadao , Ohno Noriko 
Published: July 2006

Abstract
A sensitive and selective method for the determination of berberine is described. Though only a little berberine is extracted with bromophenol blue into chloroform at pH 6.7, it is extracted in quantity with the dye when quinine, being a bulky tertiary amine, co-exists in the aqueous solution. The blue associate is used for selective spectrophotometric determination of berberine in multi-component drugs.
CHARGE-TRANSFER COMPLEXATION WITH A NEW CLASS OF ELECTRON ACCEPTORS MADE OF TRIPTYCENEQUINONE UNIT
Authors: Lipczynska-Kochany Ewa , Iwamura Hiizu 
Published: July 2006

Abstract
The charge-transfer complex formation has been examined in CH2Cl2 solution with 9,10-(o-benzeno)anthracene-1,4,5,8-tetraone and 5,18: 7,16:9,14-tri-(o-benzeno)heptacene-1,4,6,8,10,13,15,17-octaone derivatives as electron acceptors. The high formation constants and the relevant thermodynamic parameters were obtained for the 1:2 quinone-TTF complexes.
PREPARATION OF ALKYL HALIDES VIA ORGANOTELLURIUMS
Authors: Chikamatsu Kiyofumi , Otsubo Tetsuo , Ogura Fumio , Yamaguchi Hachiro 
Published: July 2006

Abstract
The conversion of phenyltelluroalkanes to haloalkanes was studied in connection with the homologation of alkyl halides. Similar reactions of 1,1-bis(phenyltelluro)alkanes provided a new synthetic method of aldehydes.
STEREOSELECTIVE CARBONYL OLEFINATION VIA ORGANOSILICON COMPOUNDS. BORON AND TITANIUM REAGENTS
Authors: Haruta Ryuichi , Ishiguro Masaharu , Furuta Kyoji , Mori Atsunori , Ikeda Nobuo , Yamamoto Hisashi 
Published: July 2006

Abstract
Boron reagents derived from trialkylsilylacetonitrites are effective for the synthesis of Z-α,β-unsaturated nitriles. Z-Terminal enyne units are synthesized from the titanium reagent from 1,3-bis-(trimethylsilyl)propyne and aldehydes.
EFFECTS OF SUPPORTS AND PREPARATION METHODS OF HETEROGENIZED FeCl3 CATALYSTS IN THE OXIDATION OF 3,5-DI-TERT-BUTYLCATECHOL IN APROTIC SOLVENTS
Authors: Funabiki Takuzo , Sugimoto Tsunemi , Yoshida Satohiro 
Published: July 2006

Abstract
FeCl3-catalyzed oxidation of 3,5-di-t-butylcatechol (DTBC) to 3,5-di-t-butyl-o-benzoquinone (DTBQ) by molecular oxygen in tetrahydrofuran (THF) was significantly promoted by addition of SiO2, γ-Al2O3, and active carbon in situ. Activity of catalysts prepared by an impregnation method in water or THF was greatly dependent on the supports and solvents used for preparation of the catalysts.
EXAFS STUDY OF HIGHLY ACTIVE Mo2 CATALYST
Authors: Sato Yoshiharu , Iwasawa Yasuhiro , Kuroda Haruo 
Published: July 2006

Abstract
Mo K absorption spectrum was measured on the fixed Mo2 catalyst which has been supposed to have a well-defined “paired”structure according to its preparation procedures and from the results by UV diffuse reflectance, IR, ESR, XPS and chemical analysis. The analysis of EXAFS data provides a direct structural information that strongly supports the proposed paired structure of this catalyst.
PENTACHLOROTROPOLONE AND 3-HYDROXYPENTACHLOROTROPONE
Authors: Kusuda Kousuke , Hara Nobuya , West Robert 
Published: July 2006

Abstract
Pentachlorotropolone(3) was obtained by treatment of octachlorocycloheptatriene(1) with concentrated sulfuric acid. Chlorination of 3 in liquid chlorine afforded a perchlorinated seven-membered reductone(12). Photolysis of 4-hydroxypentachlorobicyclo [3.2.0]hepta-3,6-dien-2-one(18) gave 3-hydroxypentachlorotropone(19).
PHOTO-INDUCED HYDROXIDE ADDITION TO NITROSYL GROUP OF BIS(2,2′-BIPYRIDINE)CHLORONITROSYLRUTHENIUM(2+) IN AQUEOUS SOLUTION
Authors: Sugimori Akira , Uchida Hiroto , Akiyama Takeo , Mukaida Masao , Shimizu Kunio 
Published: July 2006

Abstract
The irradiation of [RuCl(bpy)2NO]2+ in an aqueous solution at pH ≈ 5 with UV- or solar light brings about the addition of hydroxide to a coordinating NO to give metastable [RuCl(bpy)2NO2H]+, which returns to [RuCl(bpy)2NO]2+ in the dark. The reaction produces a reversible change of H+ concentration. The quantum yields for the formation of [RuCl(bpy)2NO2H]+ at 254, 289, 313, and 334 nm are 0.04, 0.04, 0.04, and 0.05, respectively.
THE ACTIVE SITE OF ETHYLENE POLYMERIZATION ON MoY ZEOLITE DERIVED FROM Mo(CO)6/HY
Authors: Namba Seitaro , Komatsu Takayuki , Yashima Tatsuaki 
Published: July 2006

Abstract
The catalytic activity of MoY zeolite for ethylene polymerization and the apparent oxidation number of molybdenum changed with the activation temperature of HY zeolite and the decomposition temperature of Mo(CO)6/HY. At 573K of the decomposition temperature, the maximum activity was observed when the apparent oxidation number was about 1.
AZETIDINE-2,4-DIONES VIA PHOTOCHEMICAL REACTION OF N-FORMYL-α-OXOAMIDES
Authors: Aoyama Hiromu , Sakamoto Masami , Omote Yoshimori 
Published: July 2006

Abstract
Photochemical reaction of N-formyl-α-oxoamides gave 3-hydroxyazetidine-2,4-diones in good yields. In the case of N-benzyl-N-formylamide, N-formyl-β-lactam was obtained accompanied by the azetidine-2,4-dione. Intramolecular hydrogen abstraction mechanisms were postulated.
STRUCTURE OF DIMORACIN, A NEW NATURAL DIELS–ALDER ADDUCT FROM DISEASED MULBERRY
Authors: Takasugi Mitsuo , Nagao Shigemitsu , Masamune Tadashi 
Published: July 2006

Abstract
The structure of a new phytoalexin, isolated from diseased mulberry shoots and designated as dimoracin, is described. The compound is regarded biogenetically as a Diels–Alder adduct of moracin C, a 2-phenylbenzofuran phytoalexin isolated from the same tissues, and its dehydro derivative.
ALBAFURANS A AND B, GERANYL 2-PHENYLBENZOFURANS FROM MULBERRY
Authors: Takasugi Mitsuo , Ishikawa Shin-ichi , Masamune Tadashi 
Published: July 2006

Abstract
The structure elucidation of two minor antifungal compounds, isolated from “intact” epidermis of mulberry shoots and designated as albafurans A and B, is described.
A LINEAR RELATIONSHIP BETWEEN 13CNMR CHEMICAL SHIFT OF VINYL CARBONS AND ELECTRONIC ABSORPTION WAVELENGTH IN POLYSILYLETHYLENES
Authors: Sakurai Hideki , Tobita Hiromi , Nakadaira Yasuhiro 
Published: July 2006

Abstract
A very good linear correlation between 13CNMR chemical shift of vinyl carbons and electronic absorption maxima (band II) of polysilylethylenes has been established. An explanation based on the theory of Karplus–Pople is presented.
A FACILE SYNTHESIS OF α,α,γ-TRICHLOROALKANOIC ACIDS VIA THE Ru(II)-CATALYZED ADDITION OF TRICHLOROACETYL CHLORIDE TO OLEFINS
Authors: Nakano Taichi , Shimada Yasuyo , Sako Ryosuke , Kayama Mikio , Matsumoto Hideyuki , Nagai Yoichiro 
Published: July 2006

Abstract
α,α,γ-Trichloroalkanoic acids were prepared with great ease by the dichlorotris(triphenylphosphine)ruthenium(II)-catalyzed addition of trichloroacetyl chloride to olefinic compounds followed by hydrolysis of the resulting 1:1 adducts, α,α,γ-trichloro-substituted acid chlorides.
NOVEL TRANSETHERIFICATION IN CATALYTIC REDUCTION OF 4-ALKOXYNITROBENZENES IN ALCOHOL-SULFURIC ACID SOLUTION
Authors: Sone Takaaki , Teraoka Tadayoshi , Katada Sho-ji , Ohkubo Makoto , Karikura Masami , Shinkai Seiji , Manabe Osamu 
Published: July 2006

Abstract
In catalytic reduction (5% Pt–C, 1 atm H2) of 4-alkoxynitrobenzenes (R1O–C6H4–NO2) in alcohol(R2 OH)-sulfuric acid solution at room temperature, the reduction was found to be accompanied by transetherification to afford R2O–C6H4–NH2.
A NEW SYNTHETIC METHOD OF α,β-UNSATURATED KETONES VIA REGIOSELECTIVE REACTION OF ALLYL ANION FORMED FROM 2-MORPHOLINO-3-BUTENENITRILES (MASKED ACYL ANION EQUIVALENTS) WITH ALKYL HALIDES FOLLOWED BY HYDROLYSIS
Authors: Takahashi Kazumasa , Honma Akira , Ogura Katsuyuki , Iida Hirotada 
Published: July 2006

Abstract
Treatment of 2-morpholino-3-butenenitriles and alkyl halides regioselectively afforded products alkylated on α-position to the nitrile group. The hydrolysis of the α-alkylation products gave the α,β-unsaturated ketones in good yields.
FORMATION OF MONOLAYER AND BILAYER MEMBRANES FROM AMPHIPHILIC ANTHRACENE DERIVATIVES. PECULIAR SPECTROSCOPIC BEHAVIOR AND CHROMOPHORE ORIENTATION
Authors: Shimomura Masatsugu , Hashimoto Hiromasa , Kunitake Toyoki 
Published: July 2006

Abstract
Monolayer and bilayer membranes of anthracene-containing amphiphiles show highly contrasting behaviors in absorption and emission spectroscopies and in energy transfer from biphenyl donors. These peculiarities are ascribed to different chromophore orientations.
A QUANTITATIVE ESR STUDY OF Mo5+ FORMED ON DODECAMOLYBDOPHOSPHORIC ACID
Authors: Eguchi Koichi , Yamazoe Noboru , Seiyama Tetsuro 
Published: July 2006

Abstract
The esr signal of Mo5+ on reduced 12-molybdophosphoric acid was found to be significantly affected by the degree of hydration, the degree of reduction (DR) and recording temperature. The spin concentrations of samples with low DR ( &lt; 1 e/anion) could quantitatively be measured when the relaxation time of Mo5+ was made sufficiently large by sample evacuation at 300°C followed by recording at −100°C. For samples with DR &gt; 1 e/anion the dilution of reduced anions with unreduced ones was effective. It was suggested that the interaction between Mo5+ ions within a polyanion remains weak even when 4 Mo5+ are produced in a polyanion.
PROMOTION EFFECT OF IRON FOR THE MULTICOMPONENT BISMUTH MOLYBDATE CATALYSTS AS REVEALED BY 18O2 TRACER
Authors: Ueda Wataru , Moro-Oka Yoshihiko , Ikawa Tsuneo , Matsuura Ikuya 
Published: July 2006

Abstract
Promotion effect of trivalent metal ions in tetra-component bismuth molybdate catalysts, Mo10Bi1Co8M3III Ox was investigated using 18O2 tracer in the selective oxidation of propylene to acrolein. MIII, especially Fe3+, introduces cation vacancies into CoMoO4 in the form of Co1−3x2+M2xIIIφxMoO4 which accelerate the bulk diffusion of the lattice oxide ions to increase the catalytic activity of the multicomponent systems.
POLYMERIZATION OF METHYL METHACRYLATE IN THE WATER-DIOXANE SYSTEM CONTAINING PEROXIDE AND WATER-SOLUBLE POLYMER
Authors: Nonaka Takamasa , Nishida Haruo , Tagawa Rikiichi , Egawa Hiroaki 
Published: July 2006

Abstract
The polymerization of methyl methacrylate in the water-dioxane system containing peroxide and water-soluble polymer(PST) with amino groups was investigated. It was found that the polymerization proceeds smoothly at 60°C in the presence of both hydroperoxide and PST. The generation of radicals from the interaction between hydroperoxide and PST was observed by the ESR spectrum using spin trapping method.
SYNTHESIS AND PHYSICOCHEMICAL PROPERTIES OF POLYOXA(n)FERROCENOPHANES
Authors: Akabori Sadatoshi , Fukuda Hiroshi , Habata Yoichi , Sato Masaru , Ebine Seiji 
Published: July 2006

Abstract
Three mononuclear polyoxa(n)ferrocenophanes (5) and binuclear polyoxa(n,n)ferrocenophanes (6) derived from 1,1′-bis(hydroxymethyl)ferrocene were synthesized and complexing ability of 5 with alkali and transition metal cations was measured by a solvent extraction method. Their complexing abilities were excellent with silver cation, although polyoxa(n)ferrocenophanes (1) derived from 1,1′-dihydroxyferrocene were decomposed by oxidation.
RADIOACTIVE IMPLANT INDUCED X-RAY EMISSION SPECTROMETRY BY THE USE OF 67Ga, 99mTc, 111In AND 201Tl
Authors: Amano Ryohei 
Published: July 2006

Abstract
Induced X-ray emission spectrometry was examined by mixing a sample in solution with a radioisotope, which was used as a X-ray excitation source. The radioisotopes used were 67Ga, 99mTc, 111In and 201Tl. The copper, strontium, iodine, barium, lead and uranium solutions were used as the sample to be analyzed. The effective excitation efficiencies for each radioisotope were obtained.
HYDROPHILIC POLYMERS CONTAINING MEROCYANINE DYES AS PENDANT GROUPS: THE SWOLLEN THIN FILM AS SPECTRAL SENSITIZER FOR SEMICONDUCTOR PHOTOELECTRODES
Authors: Morishima Yotaro , Isono Masanao , Nozakura Shun-ichi 
Published: July 2006

Abstract
Hydrophilic polymers, such as polyethylenimine and poly(vinyl alcohol), containing merocyanine as grafted pendants were deposited on SnO2 optically transparent electrode by spin coating technique. Under illumination of visible light, the electrode showed remarkable sensitized photocurrent in an electrochemical photocell. With a thin polymer-dye film, an intrinsic current quantum efficiency of 0.6 was obtained. It is evidenced that the polymer-dye film should be swollen with electrolyte to yield photocurrent.
PICOSECOND PULSE RADIOLYSIS OF FLUOROTRICHLOROMETHANE AND BROMOTRICHLOROMETHANE
Authors: Sumiyoshi Takashi , Tsugaru Kazunori , Katayama Meiseki 
Published: July 2006

Abstract
Transient species in the radiolysis of CFCl3 and CBrCl3 was studied by stroboscopic picosecond pulse radiolysis. Two principal bands in the UV and Vis region were observed in both samples and identified as cations and charge transfer complexes of parent cations and halogen anions respectively.
FORMATION OF THE IMIDAZOLATE-BRIDGED BINUCLEAR COPPER(II) COMPLEXES IN AQUEOUS SOLUTION AS STUDIED BY ESR
Authors: Yokoi Hiroshi , Chikira Makoto 
Published: July 2006

Abstract
It has been revealed by ESR spectroscopy that, when imidazole is added to the aqueous solutions of the 1:1 complexes of copper(II) with familiar tridentate ligands or aminocarboxylates by half the molarity of the complexes, imidazolate-bridged binuclear copper(II) complexes are formed almost stoichiometrically at pH \gtrsim 9. Spin exchange interactions in the imidazolate-bridged complexes are sensitively and subtly dependent on environmental and structural factors.
CHARGE SEPARATION ON MICELLE SURFACE WHICH INITIATES RADICAL POLYMERIZATION. EVIDENCE FOR THE MULTI-STEP HYDROGEN TRANSFER FROM NADH MODELS TO PEROXIDES
Authors: Shinkai Seiji , Tsuno Takaharu , Asatani Yukiko , Manabe Osamu 
Published: July 2006

Abstract
Radical polymerization of acrylamide was initiated in the presence of sodium dodecylsulfate, 1-hexadecyl-1,4-dihydronicotinamide, and potassium persulfate. The result supports that the hydrogen transfer from a NADH model compound to peroxides proceeds through the multi-step mechanism.
COAL HYDROLIQUEFACTION USING IRON PENTACARBONYL AS A CATALYST PRECURSOR
Authors: Suzuki Toshimitsu , Yamada Osamu , Fujita Katsuhisa , Takegami Yoshinobu , Watanabe Yoshihisa 
Published: July 2006

Abstract
Coal hydroliquefaction using iron pentacarbonyl as a catalyst precursor was studied. The iron catalyst was found to be effective for coal liquefaction, resulting in increases in coal conversion and lighter fractions of coal derived materials.
109Ag NMR SPECTRA OF AQUEOUS SILVER IONS COORDINATED WITH NITROXIDE RADICAL. SILVER–TANOL COMPLEX AND TANOL AS A DOPING AGENT
Authors: Endo Kazunaka , Matsushita Kazuhiro , Deguchi Kenzo , Yamamoto Kyonosuke , Suzuki Shigeyoshi , Futaki Kiyoshi 
Published: July 2006

Abstract
The effects of TANOL radical have been examined on chemical shifts and relaxation rates of 109Ag nmr in aqueous solution of silver salts. The silver ion in aqueous solution is found to coordinate with TANOL radical. A small amount of TANOL is added as a doping agent(0.020M), since 109Ag signals are obtained for (1.0M) silver ion within 30 minutes. The 109Ag chemical shifts of silver salt in aqueous solutions were found within the range of 0 to −1000 ppm relative to that of 1.0M AgN3.
A CHARGE-TRANSFER COMPLEX AS AN INTERMEDIATE IN THE REDUCTION OF CHLORANIL BY A NADH MODEL COMPOUND
Authors: Fukuzumi Shunichi , Tanaka Toshio 
Published: July 2006

Abstract
A 1:1 charge-transfer (CT) complex between 1-benzyl-1,4-dihydronicotinamide (BzlNH) and chloranil was isolated from a benzene solution of these reactants (hνCT =1.70 eV, λmax = 730 nm). The transient CT band was observed also in the hydride transfer from BzlNH to chloranil in MeCN. The decay of the CT band coincided with the formation of the product, tetrachlorohydroquinone anion.
SYNTHESIS AND REACTIVITY OF TRIFLUOROMETHYLAZOSULFONYLARENES
Authors: Sekiya Akira , Umemoto Teruo 
Published: July 2006

Abstract
Trifluoromethylazosulfonylarenes were synthesized in high yields by treatment of trifluoronitrosomethane with arenesulfonamides in the presence of a base and their reactivity was examined. It was found that they acted as effective hydrogen-acceptors as well as trifluoromethylating agents.
A CONVENIENT METHOD FOR THE SYNTHESIS OF 7-OXO-(E)-3-ALKENOIC ACIDS BY THE REACTION OF β-VINYL-β-PROPIOLACTONE WITH METALLATED N,N-DIMETHYLHYDRAZONES
Authors: Fujisawa Tamotsu , Takeuchi Masashi , Sato Toshio 
Published: July 2006

Abstract
β-Vinyl-β-propiolactone reacts regio- and stereoselectively with an enolate equivalent such as cuprate derivatives of N,N-dimethylhydrazones and their bromomagnesium derivatives in the presence of a copper(I) catalyst to afford 7-oxo-(E)-3-alkenoic acids in high yields.
HIGHLY STEREOSELECTIVE SYNTHESIS OF α-d-GLUCOPYRANOSIDES BY THE N-IODOSUCCINIMIDE-PROMOTED INTERNAL CYCLIZATION
Authors: Suzuki Keisuke , Mukaiyama Teruaki 
Published: July 2006

Abstract
Highly stereoselective cyclizations of hydroxy enol ethers are effected by N-iodosuccinimide to result in the exclusive formation of 2′-deoxy-2′-iodo-α-d-glucopyranosides. An analog of glycolipid is also successfully synthesized according to the present method.
MEMBRANE SEPARATION AND CONCENTRATION OF COPPER ION BY AN ION PUMP DRIVEN BY LIGHT
Authors: Ohki Akira , Takeda Tadashi , Takagi Makoto , Ueno Keihei 
Published: July 2006

Abstract
A novel device for copper separation and concentration is presented in which light energy was used as driving potential. This was achieved by combining a photo-induced redox reaction to a redox potential-driven, carrier-mediated transport of copper ion through a polymer-supported liquid membrane.
PERISELECTIVE CYCLOADDITION REACTION OF 3-PHENYLTHIAIV ZOLO[4,3-a]ISOINDOLE TO ELECTRON-DEFICIENT OLEFIN
Authors: Kanemasa Shuji , Ikeda Shigehiko , Shimoharada Hiroshi , Kajicaeshi Shoji 
Published: July 2006

Abstract
3-PhenylthiaIV zolo[4,3-a]isoindole, generated in situ from 3-phenyl-5H-thiazolo[4,3-a]isoindolium bromide and triethylamine, reacted with a variety of electron-deficient olefins yielding the regio- and stereoselective 1:1 adducts between the azomethine ylide 1,3-dipole of the isoindole and the olefins.