bluuebunny/crossref_metadata_2025_split huggingface dataset:
A NOVEL METHOD FOR THE PREPARATION OF SYMMETRICAL AND UNSYMMETRICAL ETHERS. TRITYL PERCHLORATE PROMOTED REDUCTION OF CARBONYL COMPOUNDS WITH TRIETHYLSILANE
Authors: Kato Jun-ichi , Iwasawa Nobuharu , Mukaiyama Teruaki 
Published: July 2006

Abstract
In the presence of a catalytic amount of trityl perchlorate, symmetrical ethers are prepared from aldehydes and triethylsilane, and unsymmetrical ethers are also obtained from carbonyl compounds, alkoxytrimethylsilanes and triethylsilane, in good yields, respectively.
HEPTAFLUOROPROPYLATION OF ELECTRON-RICH OLEFINS WITH BIS(HEPTAFLUOROBUTYRYL) PEROXIDE
Authors: Yoshida Masato , Moriya Koji , Sawada Hideo , Kobayashi Michio 
Published: July 2006

Abstract
Bis (heptafluorobutyry) peroxide reacted with electron-rich olefins to give the adducts of C3F7CO2 and C3F7 groups in good yields. The peroxide should be the useful reagent for the introduction of heptafluoropropyl moiety into olefins.
A SIMPLE PREPARATIVE METHOD FOR OPTICALLY PURE 1-ALKENYL p-TOLYL SULFOXIDES VIA 1-ALKYNYL p-TOLYL SULFOXIDES
Authors: Kosugi Hiroshi , Kitaoka Masaki , Tagami Katsuya , Uda Hisashi 
Published: July 2006

Abstract
1-Alkynyl Grignard reagents react with (SS)-(−)-menthyl p-toluenesulfinate in toluene to give optically active 1-alkynyl p-tolyl sulfoxides in high yields. The 1-alkynyl sulfoxides thus obtained undergo a stereoselective hydroalumination followed by hydrolysis to afford the corresponding (E)-1-alkenyl p-tolyl sulfoxides with high optical purity.
(E)-3,3,3-TRIFLUORO-1-PROPENYL PHENYL SULFOXIDE. A USEFUL BUILDING BLOCK FOR TRIFLUOROMETHYLATED ORGANIC MOLECULES
Authors: Yamazaki Takashi , Ishikawa Nobuo 
Published: July 2006

Abstract
(E)-3,3,3-trifluoro-1-propenyl phenyl sulfoxide as the building block for the introduction of trifluoromethyl group was prepared from ethyl trifluoroacetate in three steps (72% yield) and high diastereoselectivity was observed for the Michael reaction of this compound with various enolate anions.
THE REGIOSELECTIVE EFFECT OF THE ALLYLIC SILICON OR OXYGEN ATOM IN 1,3-DIPOLAR CYCLOADDITION OF NITRONES
Authors: Niwayama Satomi , Dan Shigeyuki , Inouye Yoshinobu , Kakisawa Hiroshi 
Published: July 2006

Abstract
1,3-Dipolar cycloaddition of nitrones on several allyl silanes, allyl ethers, and allyl alcohol was investigated. The silicon atom in dipolarophiles controlled the regioselectivity in favor for 5-(silylmethyl)isoxazolidines, while the oxygen atom for 4-(alkoxymethyl)isoxazolidines.
REACTION OF 9-t-BUTYL-10-METHYL-9,10-ENDOTRIOXY-9,10-DIHYDROANTHRACENE WITH TRANSITION METAL COMPOUNDS
Authors: Matsuura Akira , Nishinaga Akira , Ito Yoshikatsu , Matsuura Teruo 
Published: July 2006

Abstract
9-t-butyl-10-methyl-9,10-endotrioxy-9,10-dihydroanthracene underwent reductive decomposition readily with transition metal compounds having one-electron reducibility to result unexpectedly in the specific cleavage of the shorter O–O bond close to the t-butyl group in the trioxide finally giving rise to 10-methyloxanthrone and t-butyl alcohol. A plausible mechanism is discussed.
OXIDATION OF cis-DIALKYLCOBALT(III) COMPLEXES BY OXYGEN. ACTIVATION OF OXYGEN BY PERCHLORIC ACID
Authors: Fukuzumi Shunichi , Ishikawa Kunio , Tanaka Toshio 
Published: July 2006

Abstract
The effects of protons on the reactions of cis-dialkylcobalt(III) complexes, cis-[R2Co(bpy)2]ClO4 (R = Me, Et, PhCH2; bpy = 2,2′-bipyridine), with oxygen are reported. Oxygen is shown to be activated in the presence of perchloric acid by forming hydroperoxonium ion which has a much stronger oxidizing ability than oxygen.
A NOVEL METHOD FOR THE STEREOSELECTIVE SYNTHESIS OF β-AMINOACID DERIVATIVES VIA TIN(II) CARBOXYLIC THIOESTER ENOLATES
Authors: Yamasaki Noritsugu , Murakami Masahiro , Mukaiyama Teruaki 
Published: July 2006

Abstract
Tin(II) carboxylic thioester enolates, formed in situ from stannous 2-methyl-2-propanethiolate and ketenes, react with imines in the presence of stannous triflate to give the corresponding β-aminocarboxylic thioesters in an anti-selective manner. This method is successfully applied to a diastereoselective synthesis of a carbapenem antibiotic PS-5 intermediate.
PHOTOCONDUCTING BEHAVIOR IN RELATION TO PHASE TRANSITIONS. 5,10,15,20-TETRAKIS(4-PENTADECYLPHENYL)PORPHYRIN
Authors: Shimizu Yo , Ishikawa Atsushi , Kusabayashi Shigekazu 
Published: July 2006

Abstract
5,10,15,20-Tetrakis(4-pentadecylphenyl)porphyrin(1) exhibited large changes of the photo- and the dark-current ratio(ip/id) through the phase transitions, which ranged from 300 to 0.22 between 27 °C (the crystalline phase) and 140 °C (the isotropic liquid phase) for a sandwich-type cell of ITO(25 μm-thick). The photocurrent decreased as the temperature increased, while the inverse situation was shown for the darkcurrent.
“TRIPODE”-TYPE IONOPHORE FOR SPECIFIC TRANSPORT OF Ag+ ION
Authors: Tsukube Hiroshi , Takagi Kentaro , Higashiyama Tatsuo , Iwachido Tadashi , Hayama Naomi 
Published: July 2006

Abstract
“Tripode”-type ionophore, tris(dioxa-3,6-heptyl)amine, showed specific transport properties especially for Ag+ ion, which were largely different from those observed with common double armed crown ether and bicyclic cryptand ionophores.
The Pressure Effect on the 1,5-Sigmatropic Hydrogen Shift of Tropylidene Derivative, 3,3-Diphenyl-3,3a-dihydrocyclohepta[b]furan-2-one
Authors: Sugiyama Shigeru , Takeshita Hitoshi 
Published: July 2006

Abstract
The 1,5-sigmatropy of 3,3-diphenyl-3,3a-dihydrocyclohepta[b]furan-2-one was examined in dibutyl ether to 1600 bar at 130 °C. The rearrangement was slightly accelerated with pressure, and was different to the pressure effect of 1,5-sigmatropy of cyclopentadienes. The activation volume was in the range of the concerted process, but its transition state was as loose as those biradical-like.
Preparation of Thiolate-Bridged Diruthenium Complexes with Ru–Ru Single Bond
Authors: Hidai Masanobu , Imagawa Kiyomi , Cheng Guobao , Mizobe Yasushi , Wakatsuki Yasuo , Yamazaki Hiroshi 
Published: July 2006

Abstract
Reactions of [Cp*RuCl2]n (Cp* = η5-C5Me5) with ArSH (Ar = Ph, p-ClC6H4 or p-MeC6H4) in CH2Cl2 gave diruthenium complexes [Cp*2Ru2(SAr)3]Cl in high yields. X-Ray analysis of the complex (Ar = Ph) disclosed the existence of the Ru–Ru bond triply bridged by SPh groups. On the other hand, analogous treatment of [Cp*RuCl2]n with PhCH2SH resulted in the formation of a neutral complex [Cp*2Ru2(SCH2Ph)2Cl2].
Enantioselective Synthesis of (2S,3S)-2,3-Dihydroxyalkanoates by the Baker’s Yeast Reduction of 2-Hydroxy-3-oxoalkanoates
Authors: Sato Toshio , Tsurumaki Masaji , Fujisawa Tamotsu 
Published: July 2006

Abstract
The baker’s yeast reduction of ethyl (±)-2-hydroxy-3-oxoalkanoates predominantly gave highly optically pure ethyl (2S,3S)-2,3-dihydroxyalkanoates.
Pressure Effect on the P–H and 13C–H Spin-Spin Coupling Constants in Diphenylphosphine and Diphenylmethane-α-13C in Chloroform
Authors: Yamada Hiroaki , Furubayashi Kaoru , Sera Akira , Ueji Shinichi , Azumi Kazuko 
Published: July 2006

Abstract
Upon pressurization, 1JP-H in Ph2HP has been found to increase notably, while 1J13C-H in Ph2 13CH2 has been observed to remain nearly unaffected. An increased hydrogen bonding interaction between phosphorus lone pair electrons and chloroform is considered to be responsible to the pressure induced change in 1JP-H.
Production of Higher Alcohols from Synthesis Gas over Coprecipitated Nickel Catalysts
Authors: Hayasaka Toshiaki , Obayashi Yasuo , Uchiyama Souichi , Kawata Noboru 
Published: July 2006

Abstract
Coprecipitated Ni–TiO2 and Ni–MnO catalysts efficiently produced higher alcohols such as ethanol, propanol and butanol from synthesis gas. These catalysts showed lower activities for ethane hydrogenolysis but much higher activities for ethylene hydroformylation than conventional supported nickel catalysts.
Isotopic Exchange of Oxygen-18 of Carbon Dioxide with Lattice Oxygen of Bismuth Molybdate
Authors: Matsuura Ikuya , Kirishiki Masaru 
Published: July 2006

Abstract
The isotopic oxygen exchange reaction of bismuth molybdate was found, to proceed very easily with oxygen-18-labelled carbon dioxide, though this does not proceed with gaseous oxygen-18. Moreover, all oxygen in the catalyst has been found to be replaced with oxygen-18 from carbon dioxide. It was thus proven that the bismuth molybdates have high diffusivility of oxide ions through their crystal lattice without any oxygen vacancies at temperatures above 220 °C.
Lead Promoted Barbier-Type Reaction of Propargyl Bromide with Aldehydes
Authors: Tanaka Hideo , Hamatani Takeshi , Yamashita Shiro , Torii Sigeru 
Published: July 2006

Abstract
The first example of lead-promoted “Barbier-type” (in situ Grignard) reaction has been demonstrated by the reaction of propargyl bromide with aldehydes in a Pb/Bu4NBr/Me3SiCl/DMF system.
Asymmetric Synthesis of (S)-2-(6-Methoxy-2-naphthyl)propanoic Acid
Authors: Hiyama Tamejiro , Saito Kumi , Sato Ken-ichi , Wakasa Noriko , Inoue Masuo 
Published: July 2006

Abstract
For the synthesis of the title compound of 60% ee, a new method is established which involves cyanation of an acetal derived from 1-(6-methoxy-2-naphthyl)ethanone and (S,S)-2,4-pentanediol, alkaline hydrolysis, and finally hydrogenolysis with palladium catalyst.
Reductive Rearrangement with Hydride Transfer of Linearly and Angularly Fused Triquinanes
Authors: Kakiuchi Kiyomi , Ue Masaki , Kumanoya Shuichi , Takeuchi Hideyuki , Tobe Yoshito , Odaira Yoshinobu 
Published: July 2006

Abstract
Relationship between linearly and angularly fused triquinanes is elucidated by reductive rearrangements with hydride transfer of tricyclo[6.3.0.02,6]undecan-1-ol, tricyclo[6.3.0.01,5]undecan-6-ols, and tricyclo[5.3.1.01,5]undecan-11-ol.
Direct Synthesis of Acetic Acid from Synthesis Gas over Rh–Mn–Zr–Li/SiO2 Catalyst
Authors: Nakajo Tetsuo , Sano Ken-ichi , Matsuhira Shinya , Arakawa Hironori 
Published: July 2006

Abstract
The direct synthesis of acetic acid from synthesis gas has been investigated. Acetic acid was produced with more than 63% selectivity over Rh–Mn–Zr–Li/SiO2 catalyst at 300 °C under 100 kg/cm2 of synthesis gas (CO/H2 = 9/1) flow.
Novel Diterpenes with Bicyclo[5.4.0]undecane Skeleton from Portulaca grandiflora Hook, Possible Linking Intermediates in the Biosynthesis of Portulal
Authors: Ohsaki Ayumi , Shibata Kozo , Tokoroyama Takashi , Kubota Takashi , Naoki Hideo 
Published: July 2006

Abstract
Three new diterpenes with bicyclo[5.4.0]undecane skeleton were isolated from Portulaca grandiflora Hook and their structures have been elucidated by spectroscopic methods involving an extensive application of NMR technigues. The significance of these compounds in the consideration of biosynthesis of portulal is suggested.
Microenvironmental Control of Photoinduced Electron Transfer and the Reverse Reactions in Porphyrin–Viologen Linked System
Authors: Nakamura Hiroshi , Motonaga Akira , Ogata Takeshi , Nakao Seiji , Nagamura Toshihiko , Matsuo Taku 
Published: July 2006

Abstract
Effects of spacer chain length on photoinduced electron transfer in porphyrin–viologen linked system (ZnPCnV) were investigated by laser photolysis. A long-living charge separated state was obtained with ZnPC4V in both homogeneous and bilayer systems, while ZnPC6V and ZnPC8V afforded appreciable charge separated states only in homogeneous system.
THE DIPHENYLBORYL HEXACHLOROANTIMONATE PROMOTED FRIEDEL–CRAFTS ACYLATION REACTION
Authors: Mukaiyama Teruaki , Nagaoka Hitoshi , Ohshima Masahiro , Murakami Masahiro 
Published: July 2006

Abstract
In the presence of a catalytic amount of diphenylboryl hexachloroantimonate(Ph2BSbCl6), acid chlorides or acid anhydrides react smoothly with aromatic compounds such as anisole and veratrole to give the corresponding aromatic ketones in good yields under mild conditions. Diphenylboryl hexachloroantimonate also activates acyl enolates in the Friedel–Crafts acylation reaction to give the aromatic ketones in good yields under almost neutral conditions.
Photoelectric Conversion with the Dye Multilayer on a Semiconductor Electrode
Authors: Higuchi Yuji , Kasatani Kazuo , Kawasaki Masahiro , Sato Hiroyasu 
Published: July 2006

Abstract
Photoelectric conversion with the dye-containing multilayers on an Sb-doped SnO2 optically transparent semiconductor electrode was studied, using 2,8-bis(dimethylamino)-10-dodecyl-acridinium bromide (BDA) and dioctadecylthiacarbocyanine iodide (DTC). A remarkable enhancement of the photocurrent was observed as a result of the efficient energy transfer from BDA to DTC.
A Simple Method for the Determination of pK3 Value of Porphyrins
Authors: Datta-Gupta Nirmalendu , Malakar Debasis , Jones Vincent O , Wright Terry 
Published: July 2006

Abstract
To determine the pK3 value of porphyrins, a simple spectrofluorometric titration method has been developed. The porphyrin solution is titrated with perchloric acid. After each addition of acid, the porphyrin solution is excited at one suitable wave length and the emission intensity is measured at another suitable wave length. The pK3 values of twelve porphyrins have been determined. Nitrobenzene, toluene and water have been used as solvents. The pK3 values have been compared with the literature values. Attempt has been made to correlate the Cu+2 insertion kinetics of six porphyrins and their pK3 values.
AN ESR IMAGE OF NITRODIOXIDE MOLECULES ADSORBED ON A COPPER ROD AT 10 K
Authors: Ohno Keiichi 
Published: July 2006

Abstract
Spatial distribution of paramagentic nitrodioxide molecules adsorbed on a rod-like cryo-tip sample holder, was measured using ESR imaging. This technique will serve to investigate surface diffusion of reactant species on catalyses.
A Regioselective Aluminum Chloride-catalyzed Acylation of Allylic Selenides via α-Silyl Intermediates. A Facile Route to Dihydrojasmone
Authors: Hiroi Kunio , Sato Hiroyasu 
Published: July 2006

Abstract
The aluminum chloride-catalyzed acylation of α-silylallylic selenides with acid chlorides at −78 °C produced γ-acylated vinylic selenides regioselectively. α-Silylallylic selenides in some cases underwent [1,3] shifts of the selenenyl groups by the catalysis with aluminum chloride, affording γ-silylallylic selenides. This regioselective acylation of allylic selenides provides a new route to dihydrojasmone.
Novel Syntheses of Optically Active 4-Demethoxyanthracyclinones Carrying a Hydroxymethyl or a Carbamoyloxymethyl Group at the C9-Position
Authors: Suzuki Michiyo , Matsumoto Teruyo , Ohsaki Masako , Kimura Yoshikazu , Terashima Shiro 
Published: July 2006

Abstract
The title compounds were effectively synthesized by chemoselective reduction of (R)-methyl 2,5,12-trihydroxy-6,11-dioxo-1,2,3,4-tetrahydronaphthacene-2-carboxylate to the corresponding (R)-alcohol with lithium tri-t-butoxyaluminium hydride, followed by stereoselective C7α-hydroxylation (the anthracycline numbering) and urethane formation.
A Practical Preparations of Conjugated Nitroalkenes
Authors: Jew Sang-sup , Kim Hee-doo , Cho Youn-sang , Cook Chae-ho 
Published: July 2006

Abstract
Treatment of alkenes (1a–5a) with sodium nitrite and iodine in ethyl acetate (or ether) and water in the presence of ethylene glycol (or propylene glycol) provides conjugated nitroalkenes (1b–5b) in 49–82% yields.
Changes of Cation Binding Ability of Cyclic Alkene Enhanced by Photosensitized Isomerization from cis to trans Form
Authors: Sasaki Hiroshi , Ueno Akihiko , Osa Tetsuo 
Published: July 2006

Abstract
A cyclic polyether (1) showed enhanced cation binding ability by trans to cis photoisomerization in the presence of benzophenone. The results were explained in terms of the profitable structural arrangement of oxygen atoms of the polyether linkage in cis-1.
Direct Observation of Stannyl Radicals by Laser-Photolysis of Carbon–Tin and Tin–Tin Bonds
Authors: Mochida Kunio , Wakasa Masanobu , Sakaguchi Yoshio , Hayashi Hisaharu 
Published: July 2006

Abstract
Photochemical primary processes of carbon–tin and tin–tin bonds were studied at room temperature. The stannyl radicals generated were observed directly by laser-photolysis.
Preparation and Some Reactions of Dibenzo-7-silanorbornadiene Derivatives
Authors: Sakurai Hideki , Oharu Kazuya , Nakadaira Yasuhiro 
Published: July 2006

Abstract
On irradiation, dibenzo-7-silanorbornadienes with bulky substituents on silicon generated the corresponding crowded silylenes that dimerized to kinetically stable disilenes in the absence of trapping agents. Dibenzo-7-silanorbornadienes also underwent a new type of photochemical isomerization competitively.
A Highly Stereoselective Synthesis of γ-Acyl-δ-lactones by the Trityl Perchlorate Catalyzed Tandem Michael-aldol Reaction
Authors: Kobayashi Shu , Mukaiyama Teruaki 
Published: July 2006

Abstract
γ-Acyl-δ-lactones are prepared in high yields with high stereoselectivities by the trityl perchlorate catalyzed tandem Michael-aldol reaction between α,β-unsaturated ketones, ketene silyl acetals, and aldehydes.
Preparation of Graphite Intercalation Compound of Titanium Fluoride in Fluorine Atmosphere
Authors: Nakajima Tsuyoshi , Nakane Kenji , Kawaguchi Masayuki , Watanabe Nobuatsu 
Published: July 2006

Abstract
Graphite intercalation compound(GIC) of titanium fluoride has been prepared in fluorine atmosphere. The GIC’s prepared were mainly stage 2 compounds with repeat distance, 11.28–11.59 Å and composition, C11−15TiF4.5−6.2. ESCA spectrum indicates that intercalated TiF62− anions are in bridged state.
Photodimerization of Anthracene Derivative in Langmuir–Blodgett Films
Authors: Ouchi Akihiko , Tanaka Motoo , Nakamura Takayoshi , Matsumoto Mutsuyoshi , Kawabata Yasujiro , Tomimasu Sumie , Yabe Akira 
Published: July 2006

Abstract
Mixed Langmuir–Blodgett (LB) films of (10-butyl-9-anthryl)-3-propanoic acid (1) and arachidic acid were prepared and their UV-Vis spectra were measured. Photodimerization of 1 in these LB films was successfully performed with monochromatic light.
Rapid Oxidation of NO to NO2 at ppm Concentration Level in a Heterogeneous Photocatalytic Reaction on Metal Oxide Powders
Authors: Hori Yoshio , Fujimoto Katsuhiro , Suzuki Shin 
Published: July 2006

Abstract
Photocatalytic reactions of NO at ppm level with O2 were studied in the presence of TiO2 (anatase), PbO, and ZnO using a chemical luminescence NOX analyzer and a second derivative spectrometer. The rate of oxidation of NO was very high, e.g. 1930% cm−2 h−1 in a photocatalytic reaction on TiO2 (anatase). Photoadsorption of NOX also took place on these metal oxides.
Tetrakis(n-alkyltelluro)tetrathiafulvalene (TTeCn-TTF)
Authors: Okada Naoko , Yamochi Hideki , Shinozaki Fumihiko , Oshima Kokichi , Saito Gunzi 
Published: July 2006

Abstract
A series of tetrakis(n-alkyltelluro)tetrathiafulvalene (TTeCn-TTF) was synthesized where n ranges from 1 to 18. Some chemical and physical properties of TTeCn-TTF were studied and compared with those of the sulfur analogues; tetrakis(n-alkylthio)tetrathiafulvalene (TTCn-TTF).
Stereo-controlled Alkylation of Cyclodecadienone Derivatives and the Total Synthesis of (−)- and (+)-4,5-cis-3β-Hydroxygermacranolides
Authors: Nakamura Takayoshi , Hirota Hiroshi , Kuroda Chiaki , Takahashi Takeyoshi 
Published: July 2006

Abstract
Direct trapping of the intermediate, produced by anionic oxy-Cope rearrangement of (1R,4S,6S)-4-alkoxy-1-ethenyl-3-methyl-6-(1-methylethenyl)-2-cyclohexen-1-ol, with ethyl bromoacetate gave ethyl [3S,7S,1(10)E,4Z]-3-alkoxy-6-oxo-13-nor-1(10),4-germacradien-12-oate stereoselectively, which was converted into a natural (−)-4,5-cis-3β-hydroxygermacranolide.
Optical Resolution of Tertiary Acetylenic Alcohols and Secondary Alcohols by Complexation with Achiral Amines
Authors: Toda Fumio , Tanaka Koichi 
Published: July 2006

Abstract
Partially resolved tertiary acetylenic alcohols and secondary alcohols were easily resolved completely by complexation with achiral amines such as 1,4-diazabicyclo[3.3.3]octane (DABCO), N,N′-dialkylpiperazine, N,N,N′,N′-tetramethylethylenediamine, and pyrazine, to give optically pure enantiomers. Interestingly, DABCO formed more stable complex with optically pure enantiomers but the other amines formed more stable complex with racemic compounds.
PREFERENTIAL BENT STRUCTURE OF THE HYDROPHOBIC GROUP OF TRITON X-100 SURFACTANT. A RAMAN SPECTROSCOPIC STUDY
Authors: Matsuura Hiroatsu , Fukuhara Koichi 
Published: July 2006

Abstract
Structure of the hydrophobic group of Triton X-100 surfactant was studied by a Raman spectroscopic method. The spectral analysis indicated that this group preferentially takes the bent structure with the 1,1,3,3-tetramethylbutyl group in the gauche conformation.
Photo-induced Conversion of Aryl(trichlorovinyl)nickel(II) Complexes into Two Isomeric Mono-organonickel(II) Complexes
Authors: Wada Masanori , Kumazoe Makoto , Matsuhiro Yasushi , Erabi Tatsuo 
Published: July 2006

Abstract
Photolysis (&gt;330 nm) of trans-[Ni(CCl=CCl2)(C6H4Y)(PMe3)2] (Y= Me-4, Cl-4) resulted in the formation of two isomeric mono-organonickel(II) complexes, trans-[Ni{CCl=CCl(C6H4Y)}Cl(PMe3)2] and trans-[Ni{C(C6H4Y)=CCl2}Cl(PMe3)2], possibly by reductive elimination followed by oxidative addition.
Crystal Structures of Hexakis (2,6-di-O-methyl)-α-cyclodextrin Complexes with Iodine and 1-Propanol
Authors: Harata Kazuaki 
Published: July 2006

Abstract
Crystal structures of the title compounds were determined by the X-ray analysis. The host molecule in the both complexes has a round shape, which is maintained by intramolecular O(3)–H···O(2) hydrogen bonds, and arranged in a cage-type packing mode. The guest molecules are included within the cavity of the macrocyclic ring and situated at the wider O(2), O(3) side of the cavity.
Reactivity toward Alcohols of (RuIV=O2−) Unit in trans-[RuCl(O)(py)4]+
Authors: Aoyagi Kimitake , Nagao Hirotaka , Yukawa Yasuhiko , Ogura Mariko , Kuwayama Akito , Howell F Scott , Mukaida Masao , Kakihana Hidetake 
Published: July 2006

Abstract
The reactivity with alcohol of trans-[RuCl(O)(py)4]+ was investigated. In MeOH, trans-[RuCl(OH)(py)4]+ was confirmed to exist as a precursor in the formation of trans-[RuCl(OMe)(py)4]+. The reaction progress was traced by spectrometrical and 18O-labelling experiments.
SYNTHESIS AND ELECTRONIC ABSORPTION SPECTRA OF MONOETHYNOLOGS OF MALACHITE GREEN WITH p-SUBSTITUENT ON PHENYL RING
Authors: Nakatsuji Shin’ichi , Okamoto Naoko , Nakashima Kenichiro , Akiyama Shuzo 
Published: July 2006

Abstract
A series of bis(p-dimethylaminophenyl)(p-substituted phenylethynyl)carbonium perchlorates has been prepared. The electronic spectral properties are affected by both coplanarity of the cation parts and the effect of substituent on phenyl ring. A linear relationship was obtained between the wave numbers (\ ildeν) of the longest wavelength absorption maxima and σp.
A CONVENIENT METHOD FOR THE PREPARATION OF α-ALKYLATED VINYLIC SULFONES AND THEIR CONVERSION TO ALLYLIC SULFONES
Authors: Inomata Katsuhiko , Tanaka Yuhji , Sasaoka Shin-ichi , Kinoshita Hideki , Kotake Hiroshi 
Published: July 2006

Abstract
2-Pyrrolidinoalkyl p-tolyl sulfones, which were readily available by the addition of pyrrolidine to vinylic or allylic sulfones, were converted to the corresponding α-alkylated vinylic sulfones through α-alkylation followed by elimination of pyrrolidino group. Some of the α-alkylated vinylic sulfones were further transformed to the corresponding allylic sulfones.
AN APPLICATION OF A MODEL CATALYST METHOD TO A STUDY ON A SUPPORTED CATALYST ELECTRODE. EFFECTS OF PARTICLE SIZE ON THE ELECTROCHEMICAL DESORPTION BEHAVIOR OF HYDROGEN FROM SMALL PLATINUM PARTICLES
Authors: Takasu Yoshio , Fujii Yuichi , Enami Eiji , Matsuda Yoshiharu 
Published: July 2006

Abstract
A model catalyst-electrode has been applied for the first time to a cyclic voltammetry study with respect to the adsorption-desorption behavior of hydrogen in an aqueous solution of H2SO4. The peak potentials for the desorption of hydrogen were found to depend greatly on the platinum particle size.