bluuebunny/crossref_metadata_2025_split huggingface dataset:
Intramolecular Asymmetric Lactonization Using Optically Active 1,2-Diphenylethylenediamine as a Chiral Auxiliary
Authors: Baba Naomichi , Sakamoto Akio , Mimura Mitsuo , Yamamoto Yukio , Uchida Katsuhiro , Oda Jun’ichi 
Published: May 2006

Abstract
Intramolecular asymmetric lactonizations of two cyclic hydroxydiamides bearing (R,R)-1,2-diphenylethylenediamine as a chiral auxiliary were performed by the use of trifluoroacetic acid as an acid catalyst. The reactions proceeded smoothly at r.t. affording the corresponding (S)-γ- and (S)-δ-lactonamides with 96 and 98 %e.e. respectively.
Isolation and Structure of Kuroyurinidine, a New Jerveratrum Alkaloid from Fritillaria camtschateensis
Authors: Sashida Yutaka , Mimaki Yoshihiro , Shimomura Hiroko 
Published: May 2006

Abstract
Kuroyurinidine, a novel jerveratrum alkaloid has been isolated from the MeOH extract of the fresh bulbs of Fritillaria camtschatcensis in addition to known phenolic glycosides. The structure and configuration has been shown by the extensive 2D NMR spectral analysis to be 2β, 3α, 6β-trihydroxy-5α-jervanin-12-ene.
Simple and Chemoselective Deprotection of Acetals Using Aqueous Dimethyl Sulfoxide
Authors: Kametani Tetsuji , Kondoh Hirotsune , Honda Toshio , Ishizone Hiroyuki , Suzuki Yukio , Mori Wakako 
Published: May 2006

Abstract
Deprotection of acetals was achieved in aqueous dimethyl sulfoxide under neutral reaction condition. Selective cleavage of acyclic acetals bearing various types of acid labile protecting groups was also reported.
Electrocatalytic Photolysis of Water at Photosystem II-Modified Carbon Paste Electrode Containing Dimethylbenzoquinone
Authors: Ikeda Tokuji , Senda Mitsugi , Shiraishi Takuo , Takahashi Masaaki , Asada Kozi 
Published: May 2006

Abstract
Photosystem II-enriched membranes from spinach chloroplasts were immobilized on the surface of a carbon paste electrode containing 2,6-dimethylbenzoquinone. The PS II membrane-modified electrode showed photocurrent response due to the photolysis of water, in which dimethylbenzoquinone served as an electron acceptor for the PS II reaction and as a mediator of electron transfer between the PS II membrane and the electrode.
Modifying Effect of Selenium on Catalytic Reactivity of Transition Metals
Authors: Yanada Kazuo , Yamaguchi Hiromi , Yanada Reiko , Meguri Haruo , Uchida Shuji 
Published: May 2006

Abstract
Sodium selenite increased the catalytic reactivity of the metal salts (MoCl5, FeCl2, SnCl2, HgCl2, CuCl2, PbCl2 and AsCl3) and decreased that of the metal salts (NaAuCl4, AgCl, BiCl3, CoCl2, NiCl2, PdCl2, and Na2PtCl6) in the reduction of nitrobenzene to N-phenylhydroxylamine and/or aniline with sodium borohydride in water.
The Structure of Brominated Diterpene from the Marine Red Alga Laurencia obtusa (Hudson) Lamouroux
Authors: Suzuki Teruaki , Takeda Satoshi , Hayama Naoki , Tanaka Isao , Komiyama Kanki 
Published: May 2006

Abstract
A new brominated diterpene, 15-bromo-2,7,16-trihydroxy-9(11)-parguerene has been isolated from the title alga and its structure including absolute configuration was established by spectral and chemical evidences as well as X-ray crystallographic method.
Synthesis of Solid Superacid of Molybdenum Oxide Supported on Zirconia and Its Catalytic Action
Authors: Hino Makoto , Arata Kazushi 
Published: May 2006

Abstract
A solid superacid catalyst was obtained by impregnating Zr(OH)4 with molybdic acid followed by calcining in air at 750–800 °C. XRD showed that superacid sites were not created by impregnation of the molybdate on the crystallized oxide, but on the hydroxide; the material then converted to the crystalline form by calcination.
Convenient Synthesis of Sulfur Ylides by Reaction of Active Methylene Compounds with Corey–Kim Reagent
Authors: Katayama Sadamu , Watanabe Toshio , Yamauchi Masashige 
Published: May 2006

Abstract
Reactions of active methylene compounds with Corey–Kim reagent in the presence of triethylamine afford stable sulfur ylides in satisfactory yields.
Stereochemical Aspects of Oxirane Ring Opening. Heterogeneous Catalytic Deuterolysis of cis and trans-1,2-Epoxy-4-t-butylcyclohexanes
Authors: Ishiyama Jun-ichi , Yashima Hiroaki , Matsuo Hironobu , Senda Yasuhisa , Imaizumi Shin , Hanaya Kaoru , Muramatsu Takashi 
Published: May 2006

Abstract
2H NMR analysis of deuterolyzed products from cis- and trans-1,2-epoxy-4-t-butylcyclohexane indicated that the cleavage of the oxirane C–O bond proceeds with inversion of configuration over noble metal catalysts except for Ru, while with retention over Co. Both retention and inversion competitively occurs over Ni and Ru.
Efficient Activation of Acetals toward Nucleophiles by the Use of Transition Metal Salts. New Method for Cyanation of Acetals and Orthoester Derived from Aromatic and α,β-Unsaturated Carbonyl Compounds with Trimethylsilyl Cyanide under Neutral Condition
Authors: Mukaiyama Teruaki , Soga Tsunehiko , Takenoshita Haruhiro 
Published: May 2006

Abstract
In the presence of a catalytic amount of transition metal salts (NiCl2, CoCl2, PdCl2, etc.), trimethylsilyl cyanide smoothly reacts with acetals or orthoester derived from aromatic and α,β-unsaturated carbonyl compounds to give the corresponding α-cyano derivatives under neutral condition.
Anion-Conducting Film Composed of Poly(vinyl chloride), Quarternary Ammonium Iodide, and Organotin Compound
Authors: Fujinami Tatsuo , Ishikawa Hitoshi , Takaoka Hiromitsu , Fukuzawa Shin-ichi , Sakai Shizuyoshi , Ogita Masami 
Published: May 2006

Abstract
Anionic conductivity of poly(vinyl chloride)-tetrabutylammonium iodide composite film has been remarkably increased by the addition of organotin compounds. At a high content of tributyltin iodide, the conductivity has been enhanced up to the order of 10−4 S/cm at 25 °C.
Bioactive Polyacetylenes from Stony Corals
Authors: Higa Tatsuo , Tanaka Junichi , Kohagura Toshikatsu , Wauke Tomoshige 
Published: May 2006

Abstract
Four new polyacetylenes have been isolated from three species of hermatypic corals, Montipora sp, M. mollis, and Pectinia lactuca. These compounds, representing the first such metabolites of coelenterates, exhibited ichthyotoxicity and inhibited the growth of some bacteria and fungi.
Stereoselective Addition of t-Butyldimethylsiloxy-1-ethoxyethene to 2-Trichloromethyl-1,3-dioxan-4-ones
Authors: Homma Koichi , Mukaiyama Teruaki 
Published: May 2006

Abstract
In the presence of a catalytic amount of trityl hexachloroantimonate, 2-trichloromethyl-1,3-dioxan-4-ones (1) , easily prepared from β-hydroxycarboxylic acids, are stereoselectively attacked by t-butyldimethylsiloxy-1-ethoxyethene to afford 1,3-dioxan-4-acetic acid derivatives. The stereoselectivity is dependent on both the substituent at the 5-position of 1 and the amount of the catalyst.
Preorganization of the Salicylideneaniline Ligand by Means of Bilayer Membrane
Authors: Ishikawa Yuichi , Nishimi Taisei , Kunitake Toyoki 
Published: May 2006

Abstract
Single-chain ammonium amphiphiles which contain the salicylideneaniline unit formed stable bilayer membranes in water. The component orientation is either parallel or tilted depending on the alkyl chain length, as inferred from X-ray diffraction patterns and absorption spectral shifts.
Molecular Recognition at the Interface. Synthesis and Monolayer Property of Long-Chain Derivatives of Kemp’s Acid
Authors: Ikeura Yasuhiro , Honda Yoshihiro , Kurihara Kazue , Kunitake Toyoki 
Published: May 2006

Abstract
Monolayer formation of octadecyl derivatives of a cyclohexanetricarboxylic acid (Kemp’s acid) was examined. A symmetrically substituted double-chain derivative gave a stable monolayer in which carboxylic acids formed cyclic dimers at the air-water interface.
Remarkably High Activity of Binuclear Iron(III) Complexes for Formation of TBA-active Compounds in Reaction with Linolenic Acid
Authors: Nishida Yuzo , Nasu Miyuki , Yamada Kasumi 
Published: May 2006

Abstract
We have observed that some binuclear iron(III) complexes with μ-phenoxo or μ-alkoxo bridge exhibit remarkably high activity for the formation of TBA-active compounds in the reaction with linolenic acid, whereas no activity was observed for the binuclear complexes of copper(II), nickel(II), cobalt(II), and manganese(III) with the same ligands.
Chlorodecarboxylation of 3-Methyl-3-(1,4-dimethyl-9-triptycyl)butanoic Acid Rotamers with Lead(IV) Acetate in the Presence of Lithium Chloride. Facile Hydrogen Transfer from the 1-Methyl Group in the sc-Isomer
Authors: Oki Michinori , Okamoto Toshiyuki , Toyota Shinji , Yonemoto Katsumi , Yamamoto Gaku 
Published: May 2006

Abstract
Oxidation of ap-3-methyl-3-(1,4-dimethyl-9-triptycyl)butanoic acid with lead(IV) acetate in the presence of lithium chloride afforded expected ap-9-(2-chloro-1,1-dimethylethyl)-1,4-dimethyltriptycene and 1,1,7,10-tetramethyl-1,2,6,10b-tetrahydro-6,10b-o-benzenoaceanthrylene, whereas the sc-isomer did 9-t-butyl-1-chloromethyl-4-methyltriptycene as a main product. The formation of the last compound is the implication of the facile hydrogen transfer from the 1-methyl group to the radical center formed in the 9-substituent of the triptycene.
Synthesis and Mössbauer Spectroscopic Studies of Oxo-Centered Mixed-Valence Trinuclear Iron Carboxylates with Long Chain Fatty Acid Anions
Authors: Nakamoto Tadahiro , Katada Motomi , Sano Hirotoshi 
Published: May 2006

Abstract
Oxo-Centered Mixed-valence trinuclear iron complexes with long chain fatty acid anions, such as myristate, palmitate, and stearate anions, were synthesized by the reaction of acetate complex, [Fe3O(CH3CO2)6(py)3] with long chain fatty acid in pyridine. XRD patterns of them show that they have a layer structure. Their Mössbauer spectra show a delocalized valence state at room temperature while a localized valence state at lower temperatures.
Asymmetric Transformation of N-Methyl-(RS)-2-phenylglycine
Authors: Shiraiwa Tadashi , Sakata Shinji , Baba Yoshihisa , Kurokawa Hidemoto 
Published: May 2006

Abstract
The asymmetric transformation of N-methyl-(RS)-2-phenylglycine ((RS)-Mpg) via formation of the salt with (S)-camphor-10-sulfonic acid was achieved in butanoic acid without using a catalyst such as aldehydes or ketones. The salt purified by recrystallization was treated with triethylamine to give (R)-Mpg with approximately 100% optical purity in 71–77% yield.
Acyl Nitronates in Organic Synthesis. An Expeditious Synthesis of 2,5-Dialkylpyrrolidines and 2,5-Dialkylpyrrolines Including Ant Venom Alkaloids
Authors: Miyashita Masaaki , Awen Bahlul Z E , Yoshikoshi Akira 
Published: May 2006

Abstract
Acetyl nitronates (acetic nitronic anhydrides), readily obtainable from ketones and nitroalkenes, have been demonstrated to serve as potentially useful intermediates for the synthesis of 2,5-dialkylpyrrolidines and 2,5-dialkylpyrrolines, and a short-step synthesis of some ant venom alkaloids has been accomplished via these acetyl nitronates.
Direct Observation of Helices and Vesicles of Ammonium Bilayers by High-Resolution, Scanning Electron Microscopy
Authors: Ishikawa Yuichi , Nishimi Taisei , Kunitake Toyoki 
Published: May 2006

Abstract
The steric structures of helices and vesicles formed from bilayer membranes of ammonium amphiphiles were observed without metal coating by high-resolution scanning electron microscopy. These observations agreed with those made by transmission electron microscopy.
Removal of Thallium from Waste Water by Using the Iron Metal and Hydrogen Peroxide
Authors: Kikuchi Eiji , Itoh Kiminori , Fujishima Akira , Yonezawa Takashi , Kimura Toshimune 
Published: May 2006

Abstract
Thallium in waste water can be removed effectively by DOWA Iron Powder Method which uses Fe metal powder and H2O2. The concentration of Tl in waste water was decreased by a factor of about 100 from the initial concentration with each treatment.
Steric Compression-assisted Reaction in Tropolones. Possible Generation of a Novel Resonance Hybrid in 3,7-Disubstituted Tropolones
Authors: Tezuka Takahiro , Kasuga Hiroto , Isahaya Yoshinori , Nozoe Tetsuo 
Published: May 2006

Abstract
The steric compression-assisted proton dissociation in 3,7-disubstituted tropolones generates a new resonance hybrid of the tropolone, which contains the tropylium ion moiety and proton. This resonance hybrid model explains the observed unusual chemical properties of 3,7-disubstituted tropolones.
Steric Effect of Alkylidene Groups of Furylfulgides on the Photochromic Behavior
Authors: Yokoyama Yasushi , Iwai Takeshi , Kera Naohiko , Hitomi Isamu , Kurita Yukio 
Published: May 2006

Abstract
Photoreactions of furylfulgides having a large alkylidene group (7-norbornylidene or 2-adamantylidene) were investigated. An adamantylidene fulgide with [1-(2,5-dimethyl-3-furyl)-2-methyl]propylidene group recorded 0.51 and 0.26 for coloring and bleaching quantum yields, respectively.
Exchange Reaction between Methyl Hydrogens of Methanol over Solid-Base Catalysts
Authors: Ueda Wataru , Kuwabara Tetsuo , Kurokawa Hideki , Morikawa Yutaka 
Published: May 2006

Abstract
An isotope exchange reaction of hydrogen in methyl group of methanol was found to occur over solid-base catalysts. A mixture of CD3OD and CH3OD (1:1), when passed over MgO at 330 °C, changed to a nearly isotopically equilibrated mixture of deuterated methanols.
Effects of Reduction Temperatures on Electron Spin Resonance Spectra of CaS:Eu
Authors: Matsui Hiroshi , Hashizume Genzo , Adachi Gin-ya 
Published: May 2006

Abstract
Polycrystalline CaS:Eu2+ phosphors have been prepared by the reduction of CaSO3:Eu:·1/2H2O in a stream of H2S gas at 450, 600, and 900 °C for 3 to 24 h. All samples have been examined by means of ESR and photoluminescence spectroscopy. The emission intensity due to Eu2+ increased with the increase of reduction temperatures. The interstitial Eu2+ ions were observed for the CaS host prepared even at as low as 450 °C. At a higher reduction temperature, the Eu2+ ion may enter a Ca cite in the CaS host lattice substitutionally.
Shape Selective Epoxidation of Alkenes Catalyzed by Titanosilicate
Authors: Tatsumi Takashi , Nakamura Makoto , Yuasa Kensei , Tominaga Hiro-o 
Published: May 2006

Abstract
Epoxidation of 1- and 2-hexenes with H2O2 was catalyzed by titanosilicate whereas cyclohexene failed to be oxidized by this catalyst system. This shape selectivity was ascribed to the molecular sieving action of titanosilicate. The rates for epoxidation of linear alkenes decreased with increasing the chain length.
Optical Resolution of Alcohols and Amines on Poly[(S)-(−)-p-(p-tolylsulfinyl)styrene] by Means of HPLC
Authors: Kunieda Norio , Chakihara Hiroaki , Kinoshita Masayoshi 
Published: May 2006

Abstract
Poly[(S)-(−)-p-(p-tolylsulfinyl)styrene], which exert high donor ability, can be counted among the efficient stationary phase of the optical resolution of chiral aromatic alcohols and amines by means of HPLC.
Crystal Structure and Properties of [NMe4]2[Cu(C3Se5)2]·2MeCN
Authors: Matsubayashi Gen-etsu , Yokozawa Akito 
Published: May 2006

Abstract
An X-ray crystal structure analysis of the title complex has revealed that the CuSe4 geometry around the copper(II) ion is greatly distorted from a square-planar one, with a dihedral angle of 53.7° between the two diselenolato ligand planes and that the anion moieties are arranged with some Se–Se contacts to form a two-dimensional molecular sheet. The complex behaves as a semiconductor.
Adduct between (η-Cyclopentadienyl)(1,2-diphenyl-1,2-ethylenedithiolato)rhodium(III) and Quadricyclane
Authors: Kajitani Masatsugu , Eguchi Yutaka , Abe Ryuko , Akiyama Takeo , Sugimori Akira 
Published: May 2006

Abstract
(η-Cyclopentadienyl)(1,2-diphenyl-1,2-ethylenedithiolato)rhodium(III) complex (1) reacts with quadricyclane (Q) to give a 1:1 adduct in which Rh and S of the complex are bridged by 5-norbornene-2,3-diyl group. The adduct dissociates to give 1 and norbornadiene upon irradiation with a medium pressure mercury lamp.
threo-Selective Michael Addition of N,N-Dibenzylglycinate and Alaninate Enolates to α,β-Unsaturated Esters. A Concise and Stereoselective Synthesis of (±)-CCG-II
Authors: Yamaguchi Masahiko , Torisu Kazuhiko , Minami Toru 
Published: May 2006

Abstract
Lithium enolates of N,N-dibenzylglycinate and alaninate added to β-substituted α,β-unsaturated esters, and threo-adducts were obtained in high stereoselectivities. The reaction was employed in a concise and Stereoselective synthesis of (±)-CCG-II.
The Carboxylation of Active Methylene Compounds with Diphenylcarbodiimide and Potassium Carbonate
Authors: Chiba Koji , Tagaya Hideyuki , Karasu Masa , Ono Tsuyoyuki , Kugiya Masashi 
Published: May 2006

Abstract
Active methylene compounds were carboxylated by employing the reagent system, diphenylcarbodiimide and potassium carbonate, in dimethyl sulfoxide at room temperature and atmospheric pressure. The reaction proceeded even in the absence of carbon dioxide, but the carboxylation easily proceeded in carbon dioxide atmosphere.
Characterization of Highly Selective Cu–Ni Amination Catalysts
Authors: Abe Hiroshi , Hoshi Satoko , Domen Kazunari , Maruya Ken-ichi , Ohtaki Hitoshi , Onishi Takaharu 
Published: May 2006

Abstract
The characterization of Cu–Ni amination catalysts has been done by using TEM, XPS, and EXAFS. The Cu–Ni catalyst whose nickel atoms were hard to be reduced even at high temperatures under a hydrogen atmosphere gave high selectivity in the reaction between dodecyl alcohol and dimethylamine to produce N,N-dimethyldodecylamine.
New Series of Liquid Crystalline Polyacrylates with Wide Mesomorphic Temperature Range
Authors: Sakagami Sakumitsu , Nakada Masao 
Published: May 2006

Abstract
New liquid crystalline polyacrylates having ester linkages were synthesized. The methoxy and ethoxy derivatives among these polyacrylates exhibit a thermally stable nematic phase with a wide temperature range useful for gas-liquid chromatography.
Covalent Bonding of Two Ag(I) Atoms to a Square-Planar Pt(II) Atom in [Pt3(S2CNEt2)6Ag2](ClO4)2
Authors: Ebihara Masahiro , Sakurai Kenji , Kawamura Takashi , Katayama Hiroaki , Masuda Hideki , Taga Tooru 
Published: May 2006

Abstract
[Pt(S2CNEt2)2] reacts with [AgClO4] to form [{Pt3(S2CNEt2)6Ag2}(ClO4)2]. Its crystal has an extended two-dimensional cationic lattice with an Ag-Pt-Ag arrangement [Pt-Ag = 2.932(2) Å and ∠Ag–Pt–Ag = 166.8(1)°] unsupported by covalently bridging ligands.
Intramolecular Photo- and Thermal Dimerizations of Diaza[3.3](9,10)anthracenophanes
Authors: Usui Masao , Shindo Yoshio , Nishiwaki Tohru , Anda Kinji , Hida Mitsuhiko 
Published: May 2006

Abstract
Intramolecular dimerizations of seven novel diazaanthracenophanes (1) were studied. Some of 1 underwent the novel thermal dimerization of anthracene rings. The reactivities of 1, were classified into three types according to the direction in the thermal reaction.
Total Synthesis of Methoxyhygromycin and Its 5-Epimer
Authors: Chida Noritaka , Nakazawa Keiichi , Ohtsuka Masami , Suzuki Minoru , Ogawa Seiichiro 
Published: May 2006

Abstract
Methoxyhygromycin, an antibiotic having a unique structure among the aminocyclitol antibiotics, and its 5-epimer are first synthesized. This synthesis fully confirmed the proposed structure of the antibiotic and revealed that neo-configuration of cyclitol moiety is important for the appearance of antibacterial activity.
Facile Cleavage of Adenosine 2′,3′-Cyclic Phosphate at pD 7 Catalyzed by Co(III)-Triethylenetetramine Complex
Authors: Matsumoto Yoichi , Komiyama Makoto , Takeuchi Kazuhiko 
Published: May 2006

Abstract
Adenosine 2′,3′-cyclic phosphate is efficiently cleaved to adenosine by the [Co(triethylenetetramine)(OH)(H2O)]2+ complex at pD 7.0, 20 °C. The cleavage (the rate constant 1.9 × 10−2 min−1) in the presence of the complex (0.05 mol dm−3) is nearly 106 fold faster than the hydrolysis in the absence of the complex.
Uphill Transport of Carbohydrates across Ion-Exchange Membranes
Authors: Shigemasa Yoshihiro , Okamoto Shin-ichi , Sashiwa Hitoshi , Saimoto Hiroyuki 
Published: May 2006

Abstract
Without any transformation into ionized derivatives, carbohydrates themselves were transported across ion-exchange membranes against their concentration gradients. Amounts of moved sugars were affected by their pKa values.
A Mössbauer Study on Behaviors of Tin Deposited on the α-Fe2O3 Surface
Authors: Ichiba Sumio , Oshita Hiroyuki , Sakai Hiroshi 
Published: May 2006

Abstract
The doping process of metallic tin into the α-Fe2O3 crystal lattice was studied by using 119Sn Mössbauer spectroscopy. The spectra of the heat-treated samples at 300 °C for 10 h show the existence of Sn2O3, remaining β-Sn, and α2-Sn. The α2-Sn species is characteristic with the unusually large value of the isomer shift (I.S. = 4.5 ± 0.2 mm s−1).
A New Method of the Zinc Promoted Transformation of Carbonyl Compounds to Homoallylic Alcohols
Authors: Shono Tatsuya , Ishifune Manabu , Kashimura Shigenori 
Published: May 2006

Abstract
A Zn-promoted transformation of a variety of carbonyl compounds to homoallylic alcohols has been accomplished in excellent yields by using DMF as the solvent.
Diastereoselective Addition of Organometallics to 3,4-O-Isopropylidene-L-glycero-2-tetrulose Derivatives
Authors: Nagano Hajime , Ohno Mina , Miyamae Yoko 
Published: May 2006

Abstract
Diastereoselectivity in the addition of Grignard reagents (RMgX) to 1-O-benzoyl-3,4-O-isopropylidene-L-glycero-2-tetrulose and 3,4-O-isopropylidene-1-O-triphenylmethyl-L-glycero-2-tetrulose (2) depended remarkably on X, R, and the reaction temperature. The addition of EtMgBr, i-PrMgBr, and BuMgCl to 2 at 0 °C gave (2R,3S)-adducts with high diastereoselectivity (≥ 94% de).
Iodine Atom-Transfer Ring-Opening of 1,1-Difluoro-2-(1-iodoalkyl)cyclopropanes by Free-Radical Reaction
Authors: Morikawa Tsutomu , Uejima Masayuki , Yoda Kazuaki , Taguchi Takeo 
Published: May 2006

Abstract
Free-radical chain reaction of 1,1-difluoro-2-(1-iodoalkyl)cyclopropanes with hexabutylditin and irradiation gave (E)-difluorohomoallyl iodides via iodine atom-transfer ring-opening.
Cell Specificity of Polysaccharide Derivatives on Liposomal Surface
Authors: Akiyoshi Kazunari , Takanabe Hidenobu , Sato Tetsuya , Sato Toshinori , Kondo Hiroki , Sunamoto Junzo 
Published: May 2006

Abstract
Various pullulan derivatives, which have both cholesterol and another monosaccharide terminal such as hexosamines and 1-aminohexoses, were synthesized and employed for coating liposome. The lectin-induced aggregation and the phagocyte uptakes of such polysaccharide-coated liposomes were effectively controlled by changing only the terminal sugar residue of polysaccharide derivatives.
The Partial Oxidations of Benzene and Cyclohexane During Fuel Cell Reactions of O2 and H2
Authors: Otsuka Kiyoshi , Yamanaka Ichiro 
Published: May 2006

Abstract
The partial oxidations of benzene and cyclohexane have been carried out in the cathode during O2–H2 fuel cell reaction at 298 K. The Pd-black electrode embedded in graphite catalyzes the formation of phenol from benzene and those of cyclohexanol and cyclohexanone from cyclohexane. It is suggested that the hydrogen peroxide generated at the cathode through the O2–H2 fuel cell reaction reacts with benzene and cyclohexane producing their oxygenates.
A Novel Thin Film of Anion Exchanger Prepared by Plasma Polymerization
Authors: Ogumi Zempachi , Uchimoto Yoshiharu , Tsujikawa Masanori , Takehara Zen-ichiro 
Published: May 2006

Abstract
A novel ultra-thin film of an anion exchanger has been prepared by plasma-polymerization of 4-vinylpyridine followed by quaternarization. The resulting anion exchange film exhibits a chloride ion transference number of higher than 0.8 in the aqueous KCl system.
Hydrolysis of Adenosine 2′,3′-Cyclic Phosphate and Adenylyl(3′-5′)adenosine Catalyzed By Alkylenediamines
Authors: Yoshinari Koichi , Komiyama Makoto 
Published: May 2006

Abstract
Alkylenediamines exhibit remarkable catalysis for the hydrolysis of adenosine 2′,3′-cyclic phosphate and adenylyl(3′-5′)adenosine. The significant catalysis is ascribed to the intramolecular cooperation between the neutral amine and the protonated amine in the alkylenediamines.