bluuebunny/crossref_metadata_2025_split huggingface dataset:
X-RAY ABSORPTION SPECTROSCOPY OF SILICA-SUPPORTED Ir–Ru BIMETALLIC CLUSTERS
Authors: Hamada Hideaki , Samant Mahesh G , Boudart Michel 
Published: July 2006

Abstract
X-Ray absorption spectroscopy (XAS) studies at the LIII absorption edge of Ir and the K absorption edge of Ru were conducted on silica-supported Ir–Ru samples. The samples were prepared by co-impregnation of silica with an aqueous solution of IrCl4 and RuCl3. The XAS data indicate segregation of an Ir–Ru alloy on the surface of the Ir particles. The LIII absorption threshold resonance associated with the Ir atom suggests that Ir in Ir/SiO2 and Ir–Ru/SiO2 is more electron deficient than bulk metallic Ir powder.
VISIBLE-LIGHT INDUCED WATER SPLITTING ON NEW SEMICONDUCTOR ELECTRODES MADE BY PHOTOLITHOGRAPHY
Authors: Hiramoto Masahiro , Hashimoto Kazuhito , Sakata Tadayoshi 
Published: July 2006

Abstract
By making use of a photolithography technique, mosaic coating composed of thick metal films and a transparent silicon oxide film was applied to the surface of the small bandgap semiconducting electrodes such as Si electrodes with a p-n junction (p+ n-Si) or an MIS junction (MIS-Si), n-CdS/p-CdTe heterojunction electrodes. These electrodes are stable and evolve oxygen efficiently with visible light in concentrated alkaline solutions.
SYNTHESIS OF ETHYLENE BY PARTIAL OXIDATION OF METHANE OVER THE OXIDES OF TRANSITION ELEMENTS WITH LiCl
Authors: Otsuka Kiyoshi , Liu Qin , Hatano Masaharu , Morikawa Akira 
Published: July 2006

Abstract
The synthesis of ethylene directly from methane has been tested in the presence of oxygen over the LiCl-added transition metal oxides. The oxides of Mn and Ni with LiCl produced ethylene with high selectivity (ca. 60%) and yield (ca. 27%) under the following experimental conditions: T=1023 K, P(CH4)/P(O2)=2/1, P(CH4)=5.1 kPa, and W/F=600–1200 g l−1s.
SELECTIVE AND STEREOSPECIFIC HORSE LIVER ALCOHOL DEHYDROGENASE-CATALYZED REDUCTION OF CAGE-SHAPED meso-DIKETONE. AN EFFICENT ACCESS TO OPTICALLY ACTIVE D3-TRISHOMOCUBANE DERIVATIVE
Authors: Naemura Koichiro , Fujii Takanori , Chikamatsu Hiroaki 
Published: July 2006

Abstract
Horse liver alcohol dehydrogenase-catalyzed reduction of meso-diketone: pentacyclo[5.4.0.02,6.03,10.05,9]undecane-8,11-dione gave (−)-11-hydroxypentacyclo[5.4.0.02,6.03,10.05,9]undecan-8-one which was transformed to (+)-D3-trishomocuban-4-ol. HLADH also catalyzed the reduction of (±)-pentacyclo[5.4.0.02,6.03,10.05,9]undecan-8-one (4) affording (+)-4 and (−)-pentacyclo[5.4.0.02,6.03,10.05,9]undecan-8-ol.
ASYMMETRIC TRANSCYANOHYDRINATION
Authors: Kobayashi Yoshiyuki , Hayashi Hiroaki , Miyaji Koji , Inoue Shohei 
Published: July 2006

Abstract
Transcyanohydrination, the reaction between an aldehyde and acetone cyanohydrin to give the cyanohydrin of the aldehyde, catalyzed by cyclo((S)-phenylalanyl-(S)-histidyl) gives the product with optical yield up to 63% from some aromatic and aliphatic aldehydes. The reaction catalyzed by (S)-α-dimethylamino-ε-caprolactam gives the product with optical yield of 15-25% from aliphatic aldehydes.
SYNTHESIS OF OPTICALLY ACTIVE DIAMINO-DIIMINE MACROCYCLE (6S,15S)-1,5,10,14-TETRAAZA-4,13-DIMETHYL-TRICYCLO[13.3.1.16,10]ICOSA-4,13-DIENE AND MOLECULAR STRUCTURE OF ITS NICKEL(II) COMPLEX
Authors: Miyamura Kazuo , Saburi Masahiko , Gohshi Yohichi , Tsuboyama Sei , Sakurai Toshio 
Published: July 2006

Abstract
An optically active tetra-aza macrocycle was prepared by a simple method, employing an optically active N-substituted diamine as a starting material, and the molecular structure of its nickel(II) complex was determined by an X-ray crystallographic analysis.
A NEW TRANSFORMATION METHOD OP N-ALKYLPHTHALIMIDES TO N-ALKYLFORMAMIDES WITH N,N-DIMETHYLFORMAMIDE AND HYDRAZINE HYDRATE
Authors: Iwata Masaaki , Kuzuhara Hiroyoshi 
Published: July 2006

Abstract
N-Alkylphtalimides were transformed to N-alkylformamides, mediated by hydrazine hydrate in N,N-dimethylformamide, in practical synthetic yields.
“PARTIALLY” SUPERCONDUCTING BEHAVIOR OF θ-(BEDT-TTF)2(I3)1−x(A)x (A=AuI2, I2Br) SYSTEM
Authors: Kato Reizo , Kobayashi Hayao , Kobayashi Akiko , Nishio Yutaka , Kajita Koji , Sasaki Wataru 
Published: July 2006

Abstract
Electrochemical crystallization with the use of a mixed supporting electrolyte gave θ-(BEDT-TTF)2(I3)1−x(A)x (A=AuI2 and I2Br), where x is very small but non-zero. When A=AuI2 (x=0.03) or A=I2Br (x≅0), the crystals exhibited “partially” superconducting behavior.
AMINO ACID APPROACH AS A GENERAL ROUTE TO NONSTABILIZED AZOMETHINE YLIDES. FACILE GENERATION OF PARENT METHANIMINIUM METHYLIDE AND ITS 1-MONO- AND 1,1-DISUBSTITUTED DERIVATIVES
Authors: Tsuge Otohiko , Kanemasa Shuji , Ohe Masayuki , Takenaka Shigeori 
Published: July 2006

Abstract
Decarboxylative condensation of glycine or N-substituted glycines with a variety of carbonyl compounds such as formaldehyde, aromatic aldehyde, or ketones is a convenient and general route to parent methaniminium methylide and its 1-mono- and 1,1-disubstituted derivatives with or without an N-substituent.
THE STRUCTURE AND PROPERTIES OF TWO POLYMORPHIC FORMS OF PHENOTHIAZINE-TETRACHLOROANTIMONATE
Authors: Uchida Tokiko , Seki Hisao , Ito Masanori , Nakano Chikako K , Hoshizaki Taketoshi , Kozawa Kozo 
Published: July 2006

Abstract
The crystal structure of two polymorphic forms of phenothiazine-tetrachloroantimonate, triclinic and monoclinic forms, was determined. The monoclinic crystal consists of one-dimensional stacking columns of phenothiazine cation radicals and infinite chains of (SbCl4−)n. Its single crystals are semiconductors with an activation energy of 0.3 eV, and possess anisotropic behavior.
YAG Laser-induced Polymerization of Monomers Containing Metal Ions
Authors: Terao Hiromu , Eguchi Shuji , Ibamoto Masahiko , Asano Hideki 
Published: July 2006

Abstract
YAG laser irradiation onto a film of transparent monomers containing Ba2+ or Pb2+ on a glass slide caused polymerization in thin film conditions. The refractive indices of polymers formed by the laser irradiation are about 0.02 higher than those of polymers formed by heating. This could be attributed to the structure with high density.
Formation of Spirocompounds by Rearrangement of N,N-Dimethylhexahydrothienoazocinium or Azoninium Ylides
Authors: Cotelle Philippe , Hasiak Bruno , Barbry Didier , Couturier Daniel 
Published: July 2006

Abstract
Treatment of N,N-dimethylhexahydrothienoazocinium or azoninium salts by sodium amide in liquid ammonia affords spirocompounds. These products arise from ammonium ylides by [2,3] sigmatropy and are easily hydrolyzed to carbonyl compounds by dilute acids.
Asymmetric Synthesis of Silicon Compounds Using Chiral 5,6-Dimethoxy-1,3,2-dioxasilacycloheptane Derivatives
Authors: Kobayashi Kimiko , Kato Takayuki , Masuda Shinji 
Published: July 2006

Abstract
Asymmetric synthesis of silicon compounds was achieved in high optical yield by the substitution reaction of some chiral 5,6-dimethoxy-1,3,2-dioxasilacycloheptane derivatives with organometallic reagents followed by lithium aluminium hydride reduction. These starting dioxasilacycloheptanes were obtained by the coupling reaction of (S,S)-2,3-dimethoxybutanediol and corresponding prochiral dialkyldichlorosilanes.
Inclusion Properties of the New Host Compound 1,2,4,5-Tetra(morpholinocarbonyl)benzene and X-Ray Crystal Structure of Its 1:4 Complex with Water
Authors: Toda Fumio , Kai Akihiro , Yagi Minoru , Mak Thomas C W 
Published: July 2006

Abstract
The title host compound has been prepared and found to form inclusion complexes with water and a variety of alcohols. In its 1:4 crystalline complex with water, the host molecule occupies a centrosymmetric site, each non-adjacent pair of carbonyl oxygen atoms being bridged by two end-to-end hydrogen-bonded water molecules. The water molecules are further interconnected by hydrogen bonds to form two-fold screw spirals parallel to the b axis, giving rise to a layer structure.
A Simple Preparation of N-Protected α-Amino Esters with α,α-Disubstituents from Ethyl Azidoformate and Ketene Silyl Acetals
Authors: Mitani Michiharu , Tachizawa Osamu , Takeuchi Hiroshi , Koyama Kikuhiko 
Published: July 2006

Abstract
The photolysis of ethyl azidoformate in CH3CN containing ketene silyl acetals afforded N-ethoxycarbonyl α-amino esters with α,α,-disubstituents in one step.
Pressure Effect on the Superconducting Transition Temperature of La–Sr–Cu–O System
Authors: Sato Masatoshi , Onoda Masashige , Shamoto Shinichi , Hosoya Shoichi , Maruyama Yusei 
Published: July 2006

Abstract
Effect of pressure on the superconducting transition temperature of La–Sr–Cu–O system has been studied up to 5.9 kbar with the use of a conventional clamp cell method. The transition temperature TC where the resistivity vanishes increases linearly in response to the applied pressure p within the observed range, namely dTC/dp=0.2 K/kbar, and the onset temperature of the superconductivity seems to increase more sensitively with the pressure.
Feature of Internucleotidic 2′,3′-Cyclicphosphate Intermediates During Liquid and Solid Phase Synthesis of RNA Fragments and Practical Synthesis of Octaadenylate in the Phosphoramidite Approach
Authors: Tanimura Hiroshi , Sekine Mitsuo , Hata Tsujiaki 
Published: July 2006

Abstract
Internucleotidic cyclic phosphate intermediates were found to be hydrolyzed completely to give no 2′-5′ linkages under the usual conditions for deprotection in RNA synthesis.
Synthesis of Unsymmetrical Tetraazapentalene Derivatives
Authors: Matsumura Noboru , Tomura Masaaki , Mori Osamu , Yoneda Shigeo 
Published: July 2006

Abstract
The synthesis of unsymmetrical tetraazapentalene derivatives was achieved by the reaction of thiadiazole derivatives (2) with various isothiocyanates. Compounds 2 were easily derived from symmetrical tetraazapentalene derivatives.
Synthesis of Methyl Formate by Electrocatalytic Oxidation of Methanol in the Gas Phase Using Heteropoly and Phosphoric Acids
Authors: Otsuka Kiyoshi , Yamanaka Ichiro , Suga Katsuo 
Published: July 2006

Abstract
A simple method for electrocatalytic conversion of methanol to methyl formate in the gas phase has been demonstrated. The method using heteropoly acids and phosphoric acid in a flow of methanol vapor could be applied successfully for synthesizing methyl formate with high one-pass yield and selectivity.
Synthesis of (4R,5S,11R)-(−)-Cladospolide A, a Phytotoxic Macrolide from Cladosporium cladosporioides
Authors: Maemoto Shun’ichi , Mori Kenji 
Published: July 2006

Abstract
A total synthesis of cladospolide A [(2E,4R,5S,11R)-4,5-dihydroxy-2-dodecen-11-olide] was achieved in 16 steps from ethyl (R)-3-hydroxybutanoate.
Synthetic Approach to 11α-Oxygenated Steroid. Stereoselective Construction of a B,C,D-Ring System in an Optically Active Form
Authors: Kametani Tetsuji , Fukatsu Kohji , Tsubuki Masayoshi , Kawai Ken-ichi , Honda Tohsio 
Published: July 2006

Abstract
Stereoselective synthesis of a B,C,D-ring system of 11α-oxygenated steroid has been achieved by employing 1,3-dipolar cycloaddition reaction as a key step.
Acidic Properties of HZSM-5 Zeolite Aluminated with AlCl3
Authors: Namba Seitaro , Yamagishi Koji , Yashima Tatsuaki 
Published: July 2006

Abstract
The alumination of highly siliceous HZSM-5 with AlCl3 vapor was carried out for 2 h at 923 K. 29Si- and 27Al-MAS NMR and IR spectroscopies show that introduction of 4- and 6-coordinated aluminium atoms occurs during the alumination. Moreover, NH3-TPD spectroscopy exhibits that a considerable amount of the acid sites, whose intensity is stronger than that observed for a common HZSM-5, is generated by the alumination.
Preparation of Mono- and Multilayer Films of Calmodulin Using Langmuir–Blodgett Technique
Authors: Kondo Yoshiyuki , Miwa Tetsuya , Ikegami Hiroshi , Naoi Masatoshi , Ogoma Yoshiro , Fujii Toshihiro , Ohki Kosuke , Akaike Toshihiro 
Published: July 2006

Abstract
Monolayer film of calmodulin using Langmuir–Blodgett technique was successfully deposited onto appropriate plates. The conformational study of calmodulin in Langmuir–Blodgett film was carried out using infrared spectra and circular dichroism spectra, and these results showed that α-helical conformation was predominant and its structure was very similar to that in aqueous solutions.
Zinc(0)–Copper(I) Chloride Promoted Reaction of Methyl Dichlorofluoroacetate with Carbonyl Compounds. A New Efficient Method for the Synthesis of Methyl (Z)-α-Fluoro-α,β-unsaturated Carboxylates
Authors: Ishihara Takashi , Kuroboshi Manabu 
Published: July 2006

Abstract
Methyl dichlorofluoroacetate, easily prepared from methyl trichloroacetate and antimony(III) fluoride, underwent the reductive coupling–elimination reaction with carbonyl compounds in the presence of zinc(0), a catalytic amount of copper(I) chloride, acetic anhydride, and molecular sieves to give the corresponding (Z)-α-fluoro-α,β-unsaturated carboxylic acid methyl esters in high yields.
A New Method for the Synthesis of Oligodeoxyribonucleotides Bearing a 5′-Terminal Phosphate Group
Authors: Hata Tsujiaki , Kamimura Takashi , Urakami Ken-ichi , Kohno Kyoko , Sekine Mitsuo , Kumagai Izumi , Shinozaki Kazuko , Miura Kin-ichiro 
Published: July 2006

Abstract
Two oligoribonucleotides, pAUG and pGUAUUAAUAAUG, which are present in the 5′-terminal region of brome mosaic virus mRNA 4, have been synthesized in the phosphotriester approach involving the use of the phenylthio and anilino (or anisidino) groups as the protecting groups for the 5′- terminal phosphate.
Reductive Telluration of Aliphatic Aldehydes with Hydrogen Telluride. A New Synthesis of Dialkyl Ditellurides
Authors: Kambe Nobuaki , Inagaki Tohru , Miyoshi Noritaka , Ogawa Akiya , Sonoda Noboru 
Published: July 2006

Abstract
Reaction of aliphatic aldehydes with hydrogen telluride under acidic conditions gave dialkyl ditellurides in moderate yields. The use of deuterium telluride formed in situ from aluminum telluride and deuterium oxide provided a facile synthetic method of 1,1′-dideuterated dialkyl ditellurides.
Isolation of the Strained Bridgehead Enol Ether of a Bicyclo[3.3.1]nonan-2-one System
Authors: Wakamatsu Kazumasa , Tan Hiroaki , Ban Norikazu , Uchiyama Naotaka , Niwa Haruki , Yamada Kiyoyuki 
Published: July 2006

Abstract
8-Methyl-2-(trimethylsiloxy)tricyclo[5.3.1.03,8]undec-2-ene (11) was prepared and characterized, which is the first example of the isolable strained bridgehead enol ether of a bicyclo[3.3.1]nonan-2-one system. The reactions of 11 with electrophiles readily occurred at the C-3 bridgehead position.
Indirect Electrooxidation Mediated by an Ni(III)/(II) Redox Couple with a Cyclam Ligand
Authors: Takiguchi Tsuyoshi , Nonaka Tsutomu 
Published: July 2006

Abstract
The first example of an Ni(III)-mediated indirect electrolysis was found in the oxidation of silicon compounds using an Ni(III)/(II) redox couple having a macrocyclic polyamine(cyclam) as a ligand.
An Efficient Method for the Kinetic Resolution of Cyclic dl-Dicarboxylic Anhydrides Catalyzed by Diphenylboryl Triflate
Authors: Ohshima Masahiro , Miyoshi Norikazu , Mukaiyama Teruaki 
Published: July 2006

Abstract
In the presence of a catalytic amount of diphenylboryl triflate, the kinetic resolution of cyclic dl-dicarboxylic anhydrides is effectively achieved by the use of diphenylboric ester of (R)-2-methoxy-1-phenylethanol as the chiral source.
Oxidative Carbon–Carbon Bond Forming Reaction via a 1,3-Dioxolan-2-ylium Cation
Authors: Hayashi Yujiro , Wariishi Koji , Mukaiyama Teruaki 
Published: July 2006

Abstract
1,3-Dioxolan-2-ylium cations, derived from aldehyde ethylene acetals and trityl cation, react with ketene silyl acetals and enamines to give the corresponding β-keto esters and 1,3-diketones, respectively.
Synthesis of Pyrazinodithiadiselenafulvalenes. New Unsymmetrical π-Donors
Authors: Papavassiliou George C , Yiannopoulos Stelios Y , Zambounis John S , Kobayashi Keiji , Umemoto Kisaburo 
Published: July 2006

Abstract
Unsymmetrical dithiadiselenafulvalenes, which are annelated on the 1,3-dithiole or 1,3-dise1enole moiety to a 1,4-pyrazine ring, have been prepared by the cross coupling method and characterized as electron-donors for use in conductive charge-transfer salts.
Hydrolytic Metalloenzyme Models. Metal Ion Dependent Site-selective Acylations of Hydroxyl Groups of Bis-imidazole Ligands Promoted by Zn2+ and Cu2+ Ions in Cationic Micelles
Authors: Ogino Kenji , Kashihara Nobuyuki , Fujita Tsunehisa , Ueda Toshitomo , Isaka Toshihide , Tagaki Waichiro 
Published: July 2006

Abstract
Co-micelles of cetyltrimethylammonium bromide and lipophilic bis-imidazole ligands having primary and secondary hydroxyl groups in their side chains were investigated for their catalytic activities in the hydrolysis of p-nitrophenyl picolinate in the presence of Zn2+ and Cu2+ at 25 °C. The kinetic and product analyses strongly suggested that the site-selective acylation of hydroxyl groups of ligands occurs via the formation of a tetrahedral for Zn2+ ion and a square planar complex for Cu2+ ion.
Molecular Structure of a Catalytically Active Chiral Ruthenium(II) Complex. Chlorohydridobis[(R)-2,2′-bis(diphenylphosphino)-1,1′-binaphthyl]ruthenium(II)
Authors: Kawano Hiroyuki , Ishii Youichi , Kodama Teruyuki , Saburi Masahiko , Uchida Yasuzo 
Published: July 2006

Abstract
Molecular structure of the title complex was determined by the single crystal X-ray diffraction method. The complex has a typical octahedral structure and takes the trans configuration as a whole, where the Cl− and H− occupy the apical coordination sites. The configuration of the seven-membered chelate ring of the phosphine ligand is λ-skew(v).
Supported Sulfide and Sulfur Oxy-Acid Salts. Involvement of Alumina-Induced Cannizzaro Reaction in the Reported Reduction of Aldehydes by Na2S/Alumina
Authors: Ando Takashi , Clark James H , Cork David G , Kimura Takahide 
Published: July 2006

Abstract
Cannizzaro type oxidation-reduction of aromatic and aliphatic aldehydes, promoted by alumina, was observed during study of inorganic-solid-supported sodium sulfide and sulfur oxy-acid salts.
Synthesis of Tetrakis(methylthio)bis(vinylenedithio)tetrathiafulvalene (TMTVT). TTF Derivative Possessing Twelve Sulfurs
Authors: Nakano Hideyuki , Nakamura Tadashi , Nogami Takashi , Shirota Yasuhiko 
Published: July 2006

Abstract
The title molecule (TMTVT) was synthesized as an attractive donor for highly conductive organic salts. TMTVT is the TTF derivative possessing the largest number of sulfurs in a molecule.
Antimicrobial Compounds, Chinesin I and II from Flowers of Hypericum chinense L.
Authors: Nagai Masashi , Tada Masahiro 
Published: July 2006

Abstract
Two new antimicrobial compounds against Gram-positive bacteria, chinesin I and II, were isolated from the flowers of Hypericum chinense L. The structures of chinesin I and II were elucidated on the basis of spectral and chemical evidences. Chinesin I is relatively active in the cytotoxicity test with Hela.
Acylation of 2,4-Disubstituted Thiazolidines and Oxazolidines. Concomitant Epimerization at C-2
Authors: Ando Wataru , Igarashi Yoshiyuki , Huang Liren 
Published: July 2006

Abstract
Acylation of diastereomers of 2,4-disubstituted 4(R)-alkoxycarbonyl thiazolidines and oxazolidines with acyl chlorides affords (2R,4R)-3-acyl isomer as only product without any racemization. The reaction proceeds via concomitant epimeriaztion at C-2 of (2S,4R) diastereomer of the substrates.
New Plastoquinones from the Brown Alga Sargassum sagamianum var. yezoense
Authors: Segawa Makoto , Shirahama Haruhisa 
Published: July 2006

Abstract
The structures of sargahydroquinoic acid and yezoquinolide, new plastoquinones isolated from the brown alga Sargassum sagamianum var. yezoense, were elucidated by chemical and spectral methods.
Simultaneous Determination of Phosphate, Silicate,and Arsenate by On-line Column Flow Injection Analysis
Authors: Narusawa Yoshio , Hashimoto Takahiro 
Published: July 2006

Abstract
The simultaneous determination of phosphate, silicate and arsenate has been examined by adapting an anion-exchange column to the flow injection analyzer. Determination is based on the absorption at 810 nm of the heteropoly blue formed with ascorbic acid as reducing agent. Detection limits(S/N = 3) are 3.1 ng, 0.55 ng and 3.0 ng for phosphorus, silicon and arsenic, respectively.
Syntheses of Aureothin, Isoaureothin, and Related Geometrical Isomers
Authors: Shizuri Yoshikazu , Uchida Keiko , Yamamura Shosuke 
Published: July 2006

Abstract
Aureothin, isoaureothin, and related compounds have been synthesized in short steps starting from 3,5-dimethyl-6-formyl-4-methoxy-2-pyrone. In addition, the geometry of the conjugated double bonds in isoaureothin and its isomers has been unambiguously determined on the basis of NOE experiments.
First X-Ray Study on Orientation of Addition of Phosphorus Compounds to 3-O-Alkyl-5,6-dideoxy-1,2-O-isopropylidene-6-C-nitro-α-d-xylo-hexo-5-(Z)-enofuranoses
Authors: Yamashita Mitsuji , Sugiura Motoyuki , Tamada Yoshinori , Oshikawa Tatsuo , Clardy Jon 
Published: July 2006

Abstract
Stereochemical control of the addition of phosphorus compounds to 3-O-alkyl-5,6-dideoxy-1,2-O-isopropylidene-6-C-nitro-α-d-xylo-hexo-5-(Z)-enofuranoses was first investigated by X-ray crystallographic analysis of the adduct.
Selective Fluorescence Quenching of Chlorophyll a-N-Methylmyristamide System by Methylviologen in Aqueous Sodium Dodecyl Sulfate Solution
Authors: Kusumoto Yoshihumi , Watanabe Junko , Kurawaki Junichi , Satake Iwao 
Published: July 2006

Abstract
Addition of methylviologen to the chlorophyll a (Chl)-N-methylmyristamide system in aqueous sodium dodecyl sulfate solution led to the selective fluorescence quenching of monomeric and aggregated Chi species in the concentration range of surfactant below and above the critical micelle concentration, respectively.
On the Reactivity of Chlorine Atoms towards Alcohols
Authors: Sumiyoshi Takashi , Miura Kazuhiro , Hagiwara Hiroyuki , Katayama Meiseki 
Published: July 2006

Abstract
Pulse radiolysis has been used to determine reaction rate constants of chlorine atoms with various alcohols in carbon tetrachloride solutions by competition kinetic methods taking the absorption of the complex formed in the reaction of dimethyl sulfoxide and chlorine atoms as a reference system.
A New Method for Introducing Some Active Methylene or Methine Groups to the 3-Position of Pyrrolidine or Piperidine Skeleton, and Its Application to Preparation of a Key Intermediate for (±)-Eburnamonine Synthesis
Authors: Shono Tatsuya , Matsumura Yoshihiro , Ogaki Masaru , Onomura Osamu 
Published: July 2006

Abstract
A new method for introducing a bis(methoxycarbonyl)methyl or 2-oxopropyl group to the 3-position of pyrrolidine or piperidine skeleton has been exploited, and this method could be used in the synthesis of a key intermediate for the (±)-eburnamonine synthesis.
Spectra of CH4 Adsorbed on an NaZSM-5 Zeolite under Pressures up to 1 MPa
Authors: Yamazaki Tatsuya , Abe Yoshitaka , Watanuki Isao , Ding Tongfu , Ozawa Sentaro , Ogino Yoshisada 
Published: July 2006

Abstract
A special cell for measuring IR spectra of adsorbed species under pressures up to 1.5 MPa has been made. With this cell, the IR v1 absorption of methane adsorbed on an NaZSM-5 zeolite is obtained even at room temperature and at a moderately high pressure. The v1 absorption intensity increases linearly with the amount of methane adsorption. The electric field strength in the zeolite pore has been evaluated to be 3.6×109 V·m−1.
Polymerization of Benzene Catalyzed by Aluminium Chloride-Copper(I) Chloride under Oxygen
Authors: Hirai Hidefumi , Toshima Naoki , Kanaka Keiichi , Koshirai Atsunori 
Published: July 2006

Abstract
Polymerization of benzene to poly(1,4-phenylene) has been succeeded under oxygen using an aluminium chloride-copper(I) chloride catalyst. Treatment of benzene with aluminium chloride/copper(I) chloride (3/1 molar ratio) under oxygen at 70 °C gave poly(1,4-phenylene) in 187% yield based on the molar quantity of copper(I) chloride. Extra addition of aluminium chloride in the course of the reaction increased the yield dramatically from 187% to more than 600%.