bluuebunny/crossref_metadata_2025_split huggingface dataset:
PREPARATION OF ACYL(p-CYANOPHENOXO)(2,2′-BIPYRIDINE)NICKEL AND REDUCTIVE ELIMINATION OF PHENYL ESTERS FROM ACYL(PHENOXO)NICKEL COMPLEXES
Authors: Kohara Teiji , Komiya Sanshiro , Yamamoto Takakazu , Yamamoto Akio 
Published: July 2006

Abstract
The reaction of NiR(O-p-C6H4CN)(bpy) (R = C2H5 (1a), CH3 (1b)) with CO in a 1:1 ratio affords Ni(COR)(O-p-C6H4CN)(bpy) (R = C2H5 (2a), CH3 (2b)). p-Cyanophenyl esters are reductively eliminated from 2 on treating the complexes with π-acids such as maleic anhydride and CO. Reactions of various alkyl(phenoxo)nickel complexes NiR(OC6H4X)L2 with CO give RCOOC6H4X in high yields.
APPLICATION OF THE POLANYI ADSORPTION POTENTIAL THEORY TO ADSORPTION OF SURFACTANTS FROM AQUEOUS SOLUTION ON ACTIVATED CARBON
Authors: Abe Ikuo , Hayashi Katsumi , Kitagawa Mutsuo , Urahata Toshihiro 
Published: July 2006

Abstract
A method, which is based on the Polanyi adsorption potential theory, is presented for estimating the adsorption isotherms of surfactants from aqueous solution onto activated carbon, from the knowledge of the critical micelle concentration, the molar volume, and a “characteristic curve” determined from a single isotherm.
1-CYCLOHEPTATRIENYLIDENE-2-PHENYLETHYLENE AND ITS INTRIGUING DIMERIZATION REACTIONS
Authors: Toda Takashi , Shimazaki Norihiko , Mukai Toshio 
Published: July 2006

Abstract
Treatment of 1-(2,4,6-cycloheptatrien-1-yl)-2-phenylacetylene (2) with DBU did not give the expected 1-cycloheptatrienylidene-2-phenylethylene (1) and instead its dimers (4,5, and 6). Elucidation of the structure of the dimers 4 and 5, and a plausible mechanism of this facile dimerization reactions are described.
MECHANISM OF SOLID STATE REACTION BETWEEN SrCO3 AND SiO2
Authors: Yamaguchi Osamu , Yabuno Kazuhide , Takeoka Kiyoshi , Shimizu Kiyoshi 
Published: July 2006

Abstract
Metastable SrSiO3 was formed during the course of the solid state reaction of SrCO3 and SiO2. The reaction mechanism was investigated by means of DTA and X-ray diffraction analysis. It was found that stable SrSiO3 is formed via two processes: (a) transformation of metastable into stable SrSiO3; (b) solid state reaction between Sr2Sio4 and Sio2.
THE CONDUCTIVITY OF GRAPHITE-ALKALI-METAL-HYDROGEN TERNARY SYSTEMS
Authors: Sano Mizuka , Inokuchi Hiroo 
Published: July 2006

Abstract
The effect of hydrogen on the basal-plane electrical resistivity was studied for C8K, C24K, C8Cs and C24Cs intercalation compounds. The admission of hydrogen onto cooled C8K and C24K induced a reversible change in the resistivity below 200 K, and an irreversible increase in the resistivity at room temperature.
EFFICIENT METHOD FOR THE PREPARATION OF α-TRIMETHYLSILYLCARBOXYLIC ACID ESTERS
Authors: Kuwajiima Isao , Matsumoto Kazuhisa , Inoue Tan 
Published: July 2006

Abstract
α-Chloroacyltrimethylsilanes are shown to behave as equivalents of α-trimethylsiiylacyl derivatives in the reaction with lithium alkoxides to afford the corresponding α-trimethylsilylcarboxylic acid esters in good yield.
CATALYTIC ACTIVITY OF TiO2 TREATED WITH HEXAFLUOROPROPYLENE OXIDE IN THE ISOMERIZATION OF 1-BUTENE
Authors: Okazaki Susumu , Kurosaki Akito 
Published: July 2006

Abstract
The catalytic activity of TiO2 is markedly enhanced by the treatment with hexafluoropropylene oxide. The IR spectrum indicates that the adsorbed state of hexafluoropropylene oxide on TiO2 coincides with that of hexafluoroacetone on TiO2. The isomerization of hexafluoropropylene oxide to hexafluoroacetone is elucidated to be remarkably catalyzed by TiO2.
BIOGENETIC TYPE SYNTHESIS OF 10-BROMO-α-CHAMIGRENE
Authors: Ichinose Isao , Kato Tadahiro 
Published: July 2006

Abstract
Bromonium ion induced cyclization of methyl 2,3-cis-farnesoate (III) was achieved by the action of 2,4,4,6-tetrabromocyclohexadienone (II) to give monocyclic bromoester (IV), which was converted into dl-10-bromo-α-chamigrene (I), a naturally occurring brominated sesquiterpenoid.
PHOTOCHEMICAL CONSTRUCTION OF THE PROTOILLUDANE SKELETON: A TOTAL SYNTHESIS OF PROTOILLUD-7-ENE AND SOME OXYGENATED DERIVATIVES
Authors: Takeshita Hitoshi , Iwabuchi Hisakatsu , Kouno Isao , Iino Mitsuaki , Nomura Danji 
Published: July 2006

Abstract
Starting from 4,4-dimethylcyclopentene, the protoilludane skeleton was prepared by two steps of photocycloadditions and methylation with a Grignard reagent. A series of transformations on these products led to protoillud-7-ene and some derivatives.
ENDOR SPECTRA OF Cu(SALEN) IN Ni(SALEN) SINGLE CRYSTALS
Authors: Kita Shouichi , Iwaizumi Masamoto 
Published: July 2006

Abstract
It is shown from the observation of the ligand hf interaction that the Cu–N bond in N,N′-ethylenebis(salicylideneiminato)copper(II) may have stronger covalency than that of bis(salicylaldoximato)copper(II) and bis(N-methylsalicylaldiminato)copper(II) which have the trans N–Cu–N configuration, while the Cu–O in the former complex may have weaker covalency than that in the latter complexes. The presence of correlation between the orbital population on the coordinating atoms and spin distribution in the ligands is also suggested.
ZINC OXIDE-INDUCED DEHYDROCHLORO-CYCLOADDITION OF N-(PHENYLSULFONYL)BENZOHYDRAZONOYL CHLORIDE
Authors: Ito Suketaka , Kakehi Akikazu , Matsuno Toshiyuki , Sasaki Tadashi 
Published: July 2006

Abstract
N-(Phenylsulfonyl)benzohydrazonoyl chloride reacts with electron-rich olefins such as bicyclo[2.2.1]hept-2-ene to give 1-phenylsulfonyl-Δ2-pyrazoline derivatives in the presence of zinc oxide. Zinc oxide may cause the dehydrochlorination of the hydrazonoyl chloride to lead to the formation of N-(phenylsulfonyl)benzonitrilimine, which undergoes 1,3-dipolar cycloaddition in the dipole-LUMO controlled manner.
A RAPID ANOMERIZATION OF ALKYL PER-O-BENZYL-β-d-GLUCOPYRANOSIDES BY TITANIUM TETRACHLORIDE
Authors: Morishima Naohiko , Koto Shinkiti , Zen Shonosuke 
Published: July 2006

Abstract
Alkyl per-O-benzyl-β-d-glucopyranosides are rapidly anomerized into the corresponding α-anomer by TiCl4 in CH2Cl2 at 25°C. Replacement of the benzyl group at 0-6 by acetyl one dramatically slows the reaction but those of other benzyl groups at 0-2, 0-3, and 0-4 do not. A plausible scheme for the reaction in which benzyloxymethylene group and ring oxygen play an important role is presented.
DEOXYGENATIVE THIOACETALIZATION OF CARBONYL COMPOUNDS WITH ORGANIC DISULFIDE AND TRIBUTYLPHOSPHINE
Authors: Tazaki Masato , Takagi Makoto 
Published: July 2006

Abstract
A new deoxygenative thioether formation from carbonyl compounds as well as epoxides is presented (eq. 1–3). The reaction proceeds with the combined use of alkyl or aryl disulfide and tributylphosphine under neutral and mild conditions. The reaction with aldehydes proceeds with special ease to give thioacetals in high yields, and can be a valuable synthetic reaction.
SYNTHESIS OF [2.2]METACYCLO(1,3)AZULENOPHANE AND ITS CONVERSION TO AZULENO [1,2,3-cd]PHENALENE
Authors: Nesumi Yasuhiro , Nakazawa Tomoo , Murata Ichiro 
Published: July 2006

Abstract
[2.2]Metacyclo(1,3)azulenophane (4) has been synthesized in two steps from azulyl-1,3-bis(trimethylammonium) diiodide (1). The cyclophane 4 could be converted to the novel nonalternant hydrocarbon, azuleno[1,2,3-cd]phenalene (6), through the transannular coupling followed by dehydrogenation sequence. Some properties of 4 are also reported.
A NEW METHOD FOR THE SYNTHESIS OF β-GLUCOSIDES USING 2-CHLORO-3,5-DINITROPYRIDINE
Authors: Shoda Shin-ichiro , Mukaiyama Teruaki 
Published: July 2006

Abstract
The reaction of 3,5-dinitro-2-pyridyl α-glucopyranoside, readily derived from 1α-hydroxysugar and 2-chloro-3,5-dinitropyridine, with alcohols proceeded smoothly in the presence of a Lewis acid to afford the corresponding β-glucosides in good yields.
SYNTHESIS AND PROPERTIES OF MIXED-LIGAND RUTHENIUM(II) COMPLEXES CONTAINING 2-(2-PYRIDYL)-BENZIMIDAZOLE AND RELATED LIGANDS
Authors: Haga Masa-aki , Tanaka Toshio 
Published: July 2006

Abstract
Mixed-ligand ruthenium(II) complexes of the [Ru(bpy)2L]n+(ClO4)n type, where bpy= 2,2′-bipyridine; L= 2-(2-pyridyl)-benzimidazole (PBImH) when n= 2, and L= 2-(2-pyridyl)-benzimidazolate (PBIm) and 2-(o-hydroxyphenyl)-benzimidazole (OBImH) when n= 1, were prepared. Anodic peak potentials and ruthenium-to-bipyridine charge transfer bands of these complexes are rationalized in terms of the donor ability of L.
HEXAFLUOROACETYLACETONATOBIS(ETHYLENEDIAMINE)COBALT(III) PERCHLORATE, REVERSIBLE CHANGES OF ITS ABSORPTION AND ROTATION WITH ACID AND BASE
Authors: Kuroda Kashiro 
Published: July 2006

Abstract
Hexafluoroacetylacetonatobis(ethylenediamine)cobalt(III) perchlorate, [Co(hfac)(en)2] (ClO4)2 has been prepared and resolved. It has been found that reversible changes in absorption and rotation occur with the variation of the pH of the solution. It has been considered from the facts that the deprotonation of the methylidyne group in hfac may be accompanied with a variation in the electronic state and the steric distribution of the electron density in the chelate ring.
CONVENIENT PROCEDURES FOR CONVERSION OF CARBONYL COMPOUNDS TO gem-DIFLUOROOLEFINS AND THEIR SELECTIVE REDUCTIONS TO MONOFLUOROOLEFINS
Authors: Hayashi Sei-ichi , Nakai Takeshi , Ishikawa Nobuo , Burton Donald J , Naae Douglas G , Kesling H S 
Published: July 2006

Abstract
The in situ reaction of dibromodifluoromethane, triphenylphosphine, and aldehydes in the presence of zinc dust affords good yields of gem-difiuoroolefins. Reduction of the difluoroolefins gives selectively the corresponding monofluoro-olefins in excellent yields. The scope and limitation of these procedures are described and compared with those of previous methods.
EFFECT OF ELECTRONIC STRUCTURE AND TOLERANCE FACTOR ON CO OXIDATION ACTIVITY OF PEROVSKITE OXIDES
Authors: Shimizu Takashi 
Published: July 2006

Abstract
CO oxidation was studied over perovskite-type compounds which were prepared by a conventional ceramic method. Catalytic activity strongly correlates both with the electronic state and the binding energy of transition metal in accordance with a tolerance factor of the perovskite structure.
PROMOTED DIMERIZATION OF α-METHYLSTYRENE BY 3,5-DIMETHOXY-SUBSTITUENTS
Authors: Schmitt Bertram , Birr Christian 
Published: July 2006

Abstract
3,5-Dimethoxy-α-methylstyrene, which originates from acidic cleavage of the 3,5-dimethoxy-α,α-dimethyl-benzyl-oxycarbonyl residue, an amino protecting group in peptide synthesis, easily dimerizes in solution to 1,3,3-trimethyl-1-(3,5-dimethoxy)-phenyl-5,7-dimethoxyindan in the presence of trifluoroacetic aciEd.
RESONANCE RAMAN SPECTRA OF ALL-TRANS AND 15,15′-CIS-β,β-CAROTENES
Authors: Saito Shigeki , Harada Issei , Tasumi Mitsuo , Eugster C H 
Published: July 2006

Abstract
The Raman spectra of all-trans and 15,15′-cis-β,β-carotenes were observed using various laser lines for excitation. Differences, not dramatic but significant, were found between the spectra of the two isomers. With ultraviolet excitations both isomers gave a few bands in the C=C stretching region, whereas a single band was observed with visible excitations.
β-CYCLODEXTRIN PHOSPHATE. A REMARKABLE CATALYST FOR THE IODINE OXIDATION OF BENZYL METHYL SULFIDE TO THE SULFOXIDE IN WATER
Authors: Eiki Toshio , Tagaki Waichiro 
Published: July 2006

Abstract
β-Cyclodextrin phosphate has been found to be a remarkable catalyst for the iodine oxidation of benzyl methyl sulfide to the sulfoxide in water.
A FACILE METHOD FOR REGIOSELECTIVE 1,2-CARBONYL TRANSPOSITION OF Δ2-CYCLOHEXENONE SYSTEMS LEADING TO THE POSITIONALLY ISOMERIC Δ2-CYCLOHEXENONES
Authors: Mimura Tetsuya , Nakai Takeshi 
Published: July 2006

Abstract
A new, facile procedure is described which allows the regioselective 1,2-carbonyl transposition of Δ2-cyclohexenone systems leading to the positionally isomeric Δ2 -cyclohexenones. The scope and limitation of the method is presented.
SYNTHESIS OF 2H-CHROMENO[2,3-d]PYRIMIDINE-2,4(3H)-DIONES (5-DEAZA-10-OXAFLAVINS) AS AN AUTORECYCLING OXIDIZING AGENT
Authors: Yoneda Fumio , Hirayama Ryoichi , Yamashita Machiko 
Published: July 2006

Abstract
Treatment of 3-methyl-6-phenoxyuracils with the Vilsmeier reagent gave the corresponding 5-formyl-3-methyl-6-phenoxyuracils. Dehydrative cyclization of the above 5-formyluracils with polyphosphoric acid gave 3-methyl-2H-chromeno[2,3-d]pyrimidine-2,4(3H)-diones (3-methyl-5-deaza-10-oxaflavins). These 5-deaza-10-oxaflavins showed strong oxidizing power in oxidizing benzyl alcohol even under neutral conditions to give benzaldehyde, while they were hydrogenated to 1,5-dihydro-5-deaza-10-oxaflavins.
A NEW CATALYTIC DETERMINATION OF COPPER(II) BY MEANS OF THE OXIDATIVE COUPLING REACTION OF p-HYDRAZINOBENZENE-SULFONIC ACID WITH m-PHENYLENEDIAMINE
Authors: Nakano Shigenori , Enoki Hitomi , Kawashima Takuji 
Published: July 2006

Abstract
A new sensitive catalytic method for the determination of copper(II) is proposed. In the presence of hydrogen peroxide, copper(II) catalyzes the oxidation of p-hydrazinobenzenesulfonic acid to p-sulfobenzenediazonium ion, which is coupled with m-phenylenediamine to form a yellow azo dye (λmax=454 nm). By means of this catalytic reaction, nanogram amounts of copper(II) can be determined easily.
CATION ORDERING IN 8-LAYER Ba2(CrTa)O6
Authors: Torii Yasuyoshi , Kawamura Sukezo , Kurokawa Riichi 
Published: July 2006

Abstract
The structure of the title compound has been determined from powder X-ray diffraction data and found to be much the same as in 8-layer Ba4(LiNb3)O12. Only the Cr3+ ions occupy the face-shared octahedra, while the Ta5+ ions occupy the corner-shared octahedra.
COMPLEX FORMING BEHAVIOR OF BIS(BENZOCROWN ETHER)S LINKED BY POLY(OXYETHYLENE) CHAIN AND 4′-ALKOXYBENZOCROWN ETHERS
Authors: Wada Fumio , Wada Yoshiko , Goto Tokio , Kikukawa Kiyoshi , Matsuda Tsutomu 
Published: July 2006

Abstract
New bis(benzocrown ether)s linked by various length of poly(oxyethylene) chain, –OCH2(CH2OCH2)mCH2O–; m = 1 – 4, shows much increased extractability and selectivity to larger cations than the hole size of the crown ether ring in the extraction of alkali metal picrates. The spectra of the bis(benzo-18-crown-6) complexes in THF suggested the existence of more complex ionic species than those of bis(benzo-15-crown-5) series.
A NEW ROUTE TO PERFLUOROBICYCLIC ETHERS. AN UNUSUAL FLUORINATION PRODUCT FROM CYCLOHEXEN-2-YL-SUBSTITUTED CARBOXYLIC ACID ESTERS
Authors: Abe Takashi , Hayashi Eiji , Baba Hajime , Nagase Shunji 
Published: July 2006

Abstract
The electrochemical fluorination of methyl cyclohexen-2-ylbutyrate (1) afforded perfluoro(8-methoxy-9-ethyl-7-oxabicyclo[4.3.0]nonane) (1b) together with perfluoro(9-ethyl-7-oxabicyclo[4.3.0]nonane) (1a) as the cyclization product in a fair yield. The compound 1b having an acetal structure was confirmed by its spectral data and also by examining the chlorination products which were obtained by the reaction of 1b with anhydrous aluminum chloride.
STRUCTURE AND SYNTHESIS OF AVENIC ACID B, A NEW AMINO ACID POSSESSING AN IRON CHELATING ACTIVITY
Authors: Fushiya Shinji , Sato Yoshikazu , Nozoe Shigeo 
Published: July 2006

Abstract
A new amino acid derivative possessing an iron chelating activity was isolated from an ethanol extract from the roots of Avena sativa. The structure of this compound, avenic acid B, has been determined as 2(S),3’(S)-N-(3-hydroxy-3-carboxypropyl)-homoserine (1) on the basis of nmr analysis and by chemical synthesis.
AMIJIOL, ISOAMIJIOL, AND 14-DEOXYAMIJIOL, THREE NEW DITERPENOIDS FROM THE BROWN SEAWEED DICTYOTA LINEARIS
Authors: Ochi Masamitsu , Watanabe Masanori , Miura Iwao , Taniguchi Makoto , Tokoroyama Takashi 
Published: July 2006

Abstract
Three new diterpenoids have been isolated from the brown seaweed Dictyota linearis, and their structures determined by 1H and 13C NMR spectroscopy.
3,5-DIAMINO-1,2-DITHIOLIUM TCNQ RADICAL ANION SALTS. PREPARATION AND ELECTRICAL PROPERTIES
Authors: Yumoto Yoshiji , Tanaka Toshio 
Published: July 2006

Abstract
Some simple and complex salts of 7,7,8,8-tetracyanoquinodimethane (TCNQ) radical anion with 3,5-diamino-l,2-dithiolium cations, (Remark: Graphics omitted.)(R=H, Et, and CH2C6H5), were prepared. The complex salts as polycrystalline samples exhibit the resistivity of 3.0–9.8 ω cm with very low activation energies (0.023–0.075 eV), Electronic spectra and magnetic properties of these salts are discussed.
SYNTHESIS OF (±)-α-AMBRINOL
Authors: Takazawa Osamu , Tamura Hiroshi , Kogami Kunio , Hayashi Kazuo 
Published: July 2006

Abstract
Synthesis of α-ambrinol was successfully accomplished by cyclization of dihydro-γ-ionone ethylene acetal which was prepared by the titanium(IV)-promoted reaction of 3,3-dimethyl-1-trimethylsiloxycyclohexene with methyl vinyl ketone ethylene acetal followed by exo-methylenation with triphenylphosphonium methylide.
RELATION BETWEEN ELECTRICAL CONDUCTIVITY AND THERMAL DESORPTION SPECTRA FOR COBALT PHTHALOCYANINE-OXIDATIVE GAS SYSTEM
Authors: Sadaoka Yoshihiko , Sakai Yoshiro , Yamazoe Noboru , Seiyama Tetsuro 
Published: July 2006

Abstract
In the thermal desorption spectra of β-CoPc–NO2 system two peaks appeared. The first and second peaks were assigned to the desorption of the NO2 on the pseudoaromatic rings and on the Co ions, respectively. The electrical conductance was enhanced mainly by the interaction of the pseudoaromatic ring with NO2.
SPECIFIC WEAK INTERACTIONS RELATED TO GEOMETRICAL SHAPE OF ASSOCIATING THIOLS: THE FACTOR RESPONSIBLE FOR SELECTIVE MOLECULAR RECOGNITION IN THEIR OXIDATION
Authors: Endo Tadashi , Takeda Yukiko , Orii Toyohiko , Murata Tomoji , Sakai Miyuki , Nakagawa Naoya , Nikki Kunio 
Published: July 2006

Abstract
In oxidation of a pair of associating thiols (1d and 2) with O2, specific weak interactions related to their geometrical shape such as CH···N and CH···SH interactions are suggested to be responsible for selective molecular recognition.
TOTAL SYNTHESIS OF (±)-AVENACIOLIDE AND ITS ANALOGUES
Authors: Takei Hisashi , Fukuda Yoshimasa , Taguchi Takeo , Kawara Tatsuo , Mizutani Hidemi , Mukuta Takashi 
Published: July 2006

Abstract
A new method for the stereoselective synthesis of (±)-avenaciolide and its analogues via methoxycarbonyl- or anisyloxycarbonyldi-γ-lactones, which could be easily prepared by the reaction of γ-substituted α-bromobutenolides with sodium salt of methyl or anisyl malonamate in good yields, was described.
OXIDATIVE CYCLODIMERIZATION OF N,N-DIMETHYLANILINES A NOVEL CARBON–CARBON BOND FORMATION BY PALLADIUM(II) ACETATE
Authors: Sakakibara Tsutomu , Matsuyama Haruhiko 
Published: July 2006

Abstract
The reaction of N,N-dimethylanilines p-substituted by electron-donating groups with palladium(II) acetate in a mixed solvent of benzene and acetic acid gave cyclodimerized products, i.e. 5,6,11,12-tetrahydrodibenzo[b,f][1,5]diazocine derivatives in good yields, via novel C–C bond formation, along with small amount of acetoxylated or demethylated products. Radical cation species was suggested as a cyclodimerization intermediate.
ISOLATION AND X-RAY MOLECULAR STRUCTURE ANALYSIS OF (C6H5O)2P(OC6H4)Mn·(CO)2{P(OC6H5)3}2 FROM R3Sn–Mn(CO)3{P(OC6H5)3}2 (R = CH3 and C2H5) BY PHOTOCHEMICALLY INDUCED ORTHOMETALATION REACTION
Authors: Onaka Satoru , Kondo Yoshinori , Furuichi Nobuhiro , Toriumi Koshio 
Published: July 2006

Abstract
Photochemical reactions of the title compounds afforded an air-stable colorless crystalline compound in low yield. The product was characterized as an orthometalated manganese triphenylphosphite derivative by elemental analyses and an X-ray diffraction technique. Its crystal structure is described.
DEOXYGENATION REACTION OF NITROBENZENE WITH CARBON CATALYZED BY POTASSIUM CARBONATE
Authors: Konishi Hisatoshi , Kasamatsu Yuji , Nanjo Satoru , Okano Tamon , Kiji Jitsuo 
Published: July 2006

Abstract
Nitrobenzene was deoxygenated by carbon to give azobenzene. Impregnation of K2CO3 on the carbon markedly lowered the temperature required for the reaction. The catalytic activity of K2CO3 was correlated to the oxidation behavior of the carbon observed by TGA and DTA in air.
FACILE SUBSTITUTION REACTION BETWEEN NONACTIVATED ARYL IODIDES AND ARENETHIOLATES IN THE PRESENCE OF COPPER(I) IODIDE
Authors: Suzuki Hitomi , Abe Hisako , Osuka Atsuhiro 
Published: July 2006

Abstract
In hexamethylphosphoric triamide containing copper (I) iodide, nonactivated aryl iodides undergo a facile nucleophilic attack by arenethiolate ions to give the corresponding aryl sulfides in good yields.
A TEMPERATURE-JUMP STUDY OF INCLUSION REACTIONS OF m- AND p-NITROPHENYLAZOSALICYLIC ACID WITH α-CYCLODEXTRIN IN AQUEOUS SOLUTIONS
Authors: Yoshida Noboru , Fujimoto Masatoshi 
Published: July 2006

Abstract
Inclusion reactions of the title compounds with α-cyclodextrin were studied in aqueous solution by means of a temperature-jump method. The rate constants for inclusion reactions were found to be in the order of magnitude 106–107 mol−1 dm3 s−1.
SYNTHESIS AND REACTION OF 6,7-DIHYDROAZIRINO[1,2-a]THIENO[2,3-d] PYRIDIN-8-ONE
Authors: Satake Kyosuke , Kimura Masaru , Morosawa Shiro 
Published: July 2006

Abstract
6,7-Dihydroazirino[1 ,2-a]thieno[2,3-d]pyridin-8-one 7 was synthesized and its base-catalyzed ring-opening leading to 4,5-dihydro-8H-thieno[3,2-c]azepin-8-one 8 was studied.
ENHANCEMENT OF PHOTOCURRENT AT A MEROCYANINE-COATED ELECTRODE DUE TO CHROMOPHORE AGGREGATION
Authors: Iriyama Keiji , Mizutani Fumio , Yoshiura Masahiko 
Published: July 2006

Abstract
Remarkable absorption spectral change and enhancement of photocurrent due to chromophore aggregation have been achieved by treating a cast film of a new surface-active and photo-active merocyanine dye on an optically transparent SnO2 electrode with an alkaline aqueous solution.
CESIUM FLUORIDE PROMOTES SYNTHESIS OF RIBOOLIGONUCLEOTIDES VIA PHOSPHOTRIESTER APPROACH
Authors: Takaku Hiroshi , Nomoto Tadaaki , Murata Mitsuho , Hata Tsujiaki 
Published: July 2006

Abstract
In the presence of cesium fluoride, the reactions of a fully protected 5′-O-dimethoxytrityl-2′-O-tetrahydropyranyl-N-acylnucleoside 3′-(4-chlorophenyl, 5-chloro-8-quinolyl) phosphates with 5′-hydroxyl nucleosides proceeded rapidly under mild conditions to afford the corresponding ribodinucleoside monophosphates in good yields.
STEREOCHEMISTRY OF SULFOXIDES BY ENZYMATIC OXYGENATION OF SULFIDES WITH RABBIT LIVER MICROSOMAL CYTOCHROME P-450
Authors: Takata Toshikazu , Yamazaki Mayumi , Fujimori Ken , Kim Yong Hae , Oae Shigeru , Iyanagi Takashi 
Published: July 2006

Abstract
Asymmetric induction and diastereomeric ratio in the enzymatic oxygenation of various sulfides to the corresponding sulfoxides with hepatic mirosomal cytochrome P-450 obtained from phenobarbital pretreated rabbit were investigated in comparison with those of nonenzymatic oxidation with m-chloroperbenzoic acid and sodium metaperiodate. While substantial asymmetric inductions were observed in the sulfoxides formed by the enzymattc oxygenations, diastereomeric ratios of the sutfoxides formed were also quite different from those obtained by oxidation with m-chloroperbenzoic acid and sodium metaperiodate.
SELECTIVE PERMEATION OF CARBON DIOXIDE THROUGH CELLULOSE NITRATE/POLYETHYLENE GLYCOL BLEND MEMBRANES
Authors: Kawakami Mitsuyasu , Iwanaga Hideaki , Kagawa Shuichi 
Published: July 2006

Abstract
Permeabilities for N2, O2, and CO2 through cellulose nitrate/polyethylene glycol blend membranes were determined as a function of film composition. Not only the permeability but the permselectivity for CO2 increased with an increase in the fraction of polyethylene glycol. It was suggested that the intermolecular force induced by polar groups in the film and the role of polyethylene glycol as a plasticizer may be responsible for such a behavior for CO2.
STRUCTURE OF RISHITINONE, A STRESS METABOLITE FROM DISEASED POTATO TUBERS
Authors: Katsui Nobukatsu , Yagihashi Fujio , Murai Akio , Masamune Tadashi 
Published: July 2006

Abstract
Structure and configuration of rishitinone, a stress metabolite isolated from diseased potato tubers, was determined to be formula 1 on the basis of the chemical and spectral evidence.