bluuebunny/crossref_metadata_2025_split huggingface dataset:
1,3-REARRANGEMENT OF ALLYLIC p-TOLYL SULFONES CATALYZED By [Pd(PPh3)4] AND ITS APPLICATION TO THE SYNTHESIS OF α,β-UNSATURATED KETONES
Authors: Inomata Katsuhiko , Murata Yasue , Kato Hisatoyo , Tsukahara Yuhko , Kinoshita Hideki , Kotake Hiroshi 
Published: July 2006

Abstract
The treatment of allylic p-tolyl sulfones with a catalytic amount of [Pd(PPh3)4] gave the 1,3-rearrangement products in high yields. A convenient method for the preparation of α,β-unsaturated ketones using [Pd(PPh3)4] as a catalyst from the 1,3-rearrangement products, 2-tosylhomoallyl alcohols, is also described.
TWO COMPLEMENTARY METHODS FOR INTRODUCTION OF gem-DIMETHYL GROUP IN HEXOPYRANOSIDE RING
Authors: Hashimoto Hironobu , Kawauchi Nobuya , Yoshimura Juji 
Published: July 2006

Abstract
Hexopyranosides having a gem-dimethyl group in the pyranose ring were synthesized By reductive cleavage of spiro-cyclopropane derivatives and By addition of methyl cuprates to methyl-branched enolone derivatives.
2,3,4,5-TETRAHYDRO-1,6-DIETHYL-3,4-PROPANO-6a-THIA(SIV)-1,3,4,6-TETRA-AZAPENTALENE-2,5-DITHIONE
Authors: Matsumura Noboru , Tomura Masaaki , Yoneda Sigeo , Toriumi Koshiro 
Published: July 2006

Abstract
A new heteropentalene, 2,3,4,5-tetrahydro-1,6-diethyl-3,4-propano-6a-thia (SIV)-1,3,4,6-tetra-azapentalene-2,5-dithione, was synthesized by a convenient one pot reaction, and its structure was determined by a single crystal X-ray diffraction.
ASYMMETRIC DIELS–ALDER REACTION PROMOTED BY A CHIRAL TITANIUM REAGENT
Authors: Narasaka Koichi , Inoue Masayuki , Okada Naoko 
Published: July 2006

Abstract
The asymmetric Diels–Alder reaction between prochiral dienes and dienophiles prepared from α,β-unsaturated acids and 1,3-oxazolidin-2-one proceeds by the use of a chiral alkoxy titanium(IV) to give the corresponding cycloadducts in high enantioselectivity.
The Origin of Regio- and Stereoselectivities in 1,3-Cycloadditions of Azomethine Ylides Generated from N-(Benzylidene)trimethylsilylmethylamine and the Related Compounds
Authors: Imai Nobuyuki , Tokiwa Hiroaki , Akahori Yukio , Achiwa Kazuo 
Published: July 2006

Abstract
The frontier molecular orbital theory (ab initio procedures) was found to clearly explain the regio- and stereoselectivities in 1,3-dipolar cycloadditions of the azomethine ylides to conjugated olefins yielding the pyrrolidines.
Geochemical Characterization of Suspended Particles in Estuarine and Coastal Seawater by X-Ray Fluorescence Spectrometry
Authors: Akagi Tasuku , Haraguchi Hiroki 
Published: July 2006

Abstract
The elemental compositions of suspended particles collected in Tokyo Bay and Tamagawa River Estuary were determined by X-ray fluorescence spectrometry. It has been found that the concentrations of Al, Ti, and Fe in SP were decreased more rapidly than those of Si, Ca, K, Cu, and Zn from the estuarine to the bay areas.
Transition Metal Catalyzed Reduction of Azidoarenes to Aminoarenes with Carbon Monoxide–Water System
Authors: Shim Sang Chul , Choi Kui Nam , Yeo Young Kuk 
Published: July 2006

Abstract
Azidoarenes were readily transformed to aminoarenes in good yiels under mild conditions with carbon monoxide and water in the presence of a catalytic amount of rhodium(III) complex, which is more catalytically active than rhodium(I) or palladium(II) complexes.
Oxidative Dimerization of Methane over Promoted Magnesium Oxide Catalysts. Important Factors
Authors: Moriyama Takeshi , Takasaki Nobuhiro , Iwamatsu Eiji , Aika Ken-ichi 
Published: July 2006

Abstract
Various metal doped MgO samples were examined as catalysts for the conversion of methane to ethane and ethylene. Of these, 15 mol% Na+–MgO was found to show the highest C2 hydrocarbon yield (22.4%) with a C2 selectivity of 57% at 1073 K at a CH4/O2 ratio of 2.0.
Preparation of Optically Active α-Acetoxyacylophenones via Enzyme Mediated Hydrolysis
Authors: Ohta Hiromichi , Ikemoto Mitsushi , II Hiroyuki , Okamoto Yasushi , Tsuchihashi Gen-ichi 
Published: July 2006

Abstract
Microorganisms that hydrolyzes α-acetoxyacylophenones were screened, and it was found that Pichia miso IAM 4682, a type culture belonging to yeast, gave the best results. The esterase of this microbe hydrolyzed (R)-acetates in a highly enantioselective manner.
Stereospecific Photochemical Cyclization of Azidoquinone with E,E- and Z,Z-Dienes. Application to the Synthesis of an Important Precursor toward Mitomycins
Authors: Naruta Yoshinori , Nagai Naoshi , Yokota Tadafumi , Maruyama Kazuhiro 
Published: July 2006

Abstract
Photochemical reaction of 5-azido-2-methoxy-3-methyl-1,4-benzo quinone with cis,cis-2,4-hexadien-1,6-diol derivatives stereoselectively affords the corresponding 2,3-dihydroindolequinone, which possesses trans configuration at 2,3-position and vinylic double bond preserves the original stereochemistry of the diene. It is efficiently converted to a key precursor in mitomycin synthesis.
Palladium Catalyzed Iminocarbonylation of Bromobenzene with Isocyanide and Organotin Compounds
Authors: Kosugi Masanori , Ogata Toshimi , Tamura Hiroyuki , Sano Hiroshi , Migita Toshihiko 
Published: July 2006

Abstract
Palladium catalyzed reactions of ternary systems involving bromobenzene, t-butyl isocyanide, and organotin compounds were found to occur giving the corresponding imines, although the catalytic efficiencies were rather low.
Selective Oxidative Coupling of Methane over Supported Lead Oxide Catalyst
Authors: Asami Kenji , Hashimoto Shigeru , Shikada Tsutomu , Fujimoto Kaoru , Tominaga Hiro-o 
Published: July 2006

Abstract
It was found that lead oxide catalysts supported on basic materials such as MgO and β″-Al2O3 were excellent catalysts for the oxidative coupling of methane to C2 hydrocarbons. For example, PbO/MgO catalyst gave 11.1 mmol/g·h of C2 STY and 87% of C2 selectivity under the conditions of 750 °C, W/F=1.0 g·h/mol, P(CH4)=61 kPa, P(O2)=1.6 kPa and atmospheric pressure.
CONTINUOUS-FLOW DEMONSTRATION OF THE Mg–S–I CYCLE FOR THERMOCHEMICAL HYDROGEN PRODUCTION
Authors: Kumagai Toshiya , Mizuta Susumu 
Published: July 2006

Abstract
The Mg–S–I water-splitting cycle was demonstrated on a laboratory scale by developing a continuous-flow system including solid-reactant transportation. The whole system was satisfactorily operated for 33 hours with roughly constant production of 0.5 dm3 of H2 and 0.25 dm3 of O2 per hour.
Preparation and Photoreactions of Bispyridylnorbornadienes
Authors: Yamashita Yoshiro , Hanaoka Takaaki , Takeda Yasuyuki , Mukai Toshio 
Published: July 2006

Abstract
Bispyridylnorbornadienes were synthesized using the Diels–Alder reaction of HBF4 salts of bispyridylacetylenes with cyclopentadiene. They underwent the photocyclization to give quadricyclanes which reverted to norbornadienes by heating or a catalyst. Bis(N-methylpyridyl)norbornadienes were also synthesized and the photoreactions were investigated.
Facile Synthesis of 2-Substituted Aminobenzoxazole. One Pot Cyclodesulfurization of N-(2-Hydroxyphenyl)-N′-phenylthioureas with Superoxide Radical Anion
Authors: Chang Hae Sung , Yon Gyu Hwan , Kim Yong Hae 
Published: July 2006

Abstract
Treatment of N-(2-hydroxyphenyl)-N′-phenylthioureas with the superoxide radical anion (O2\ewdot) at 20 °C in CH3CN, THF, or DMSO resulted in the formation of 2-substituted aminobenzoxazoles in excellent yields.
Perylene–Hexacyanobutadiene (HCBD) Complex
Authors: Yamochi Hideki , Saito Gunzi , Sugano Tadashi , Kinoshita Minoru , Katayama Chuji , Tanaka Jiro 
Published: July 2006

Abstract
Hexacyanobutadiene (HCBD) gives dark red single crystals with equimolar perylene. The crystal structure analysis shows that the complex has mixed regular stacks. The physical properties of the single crystals indicate that the complex is an insulator with neutral ground state and close to neutral-ionic boundary.
ASYMMETRIC OXIDATION OF OLEFINS WITH OSMIUM TETROXIDE COORDINATED BY CHIRAL DIAMINES DERIVED FROM L-TARTARIC ACID
Authors: Yamada Tohru , Narasaka Koichi 
Published: July 2006

Abstract
The enantioselective oxidation of olefins with OsO4 coordinated by chiral diamines derived from L-tartaric acid is described. Phenylketene dimethylacetal and trans-stilbene are converted to (R)-methyl mandelate and (1R,2R)-1,2-diphenyl-1,2-ethanediol with moderate and high enantioselectivity, respectively.
Dynamic NMR Technique Can Detect the Difference in Proton Affinities of 9-[2-(Diethylamino)methyl-6-methylphenyl]fluorene Rotamers
Authors: Nakamura Mikio , Oki Michinori 
Published: July 2006

Abstract
The proton exchange processes in the trifluoroacetates of the title compound were detected by the NMR method: whereas the free energy of activation for the exchange process in the ap rotamer in CDCl3 was 16.4 kcal/mol at 298 K, that in THF-ds was 13.7 kcal/mol. In contrast, the sp rotamer exhibited the free energy of activation for the same process of 14.1 and 13.4 kcal/mol in CDCl3 and THF-d8, respectively. The presence of NH-π interactions in the ap rotamer and the absence of it in the sp are concluded to be responsible to the difference in CDCl3.
Self-Oscillation of Electric Potential of a Porous Membrane Impregnated with Polymer Multi-Bilayer Complexes
Authors: Toko Kiyoshi , Nakashima Naotoshi , Iiyama Satoru , Yamafuji Kaoru , Kunitake Toyoki 
Published: July 2006

Abstract
A self-sustained oscillation of electric potential across a porous membrane impregnated with polyion complexes of ammonium bilayers and an anionic polymer was observed. The oscillation was associated with the phase transition of immobilized multi-bilayers.
A Facile Method for the Oxidation of Aldehydes to Carboxylic Acids via Acetal-type Diperoxides
Authors: Mukaiyama Teruaki , Miyoshi Norikazu , Kato Jun-ichi , Ohshima Masahiro 
Published: July 2006

Abstract
In the presence of a catalytic amount of trityl perchlorate, aldehydes smoothly react with t-butyl trimethylsilyl peroxide to give the acetal-type diperoxides in good yields. Treatment of these diperoxides with piperidine at 90 °C or the aqueous solution of CUSO4 and L-ascorbic acid at room temperature gave the corresponding carboxylic acids in good yields.
INCOMPLETE CUBANE-TYPE SULFUR-CAPPED Mo3OS34+ AQUA ION AND X-RAY STRUCTURE ANALYSIS OF Ba[Mo3OS3(HN(CH2CO2)2)3]·7H2O
Authors: Shibahara Takashi , Miyake Hiroaki , Kobayashi Kazuhiro , Kuroya Hisao 
Published: July 2006

Abstract
A molybdenum(IV) aqua ion with sulfur bridges, Mo3OS34+, has been prepared and characterized. An X-ray structure analysis of the iminodiacetato complex prepared from the aqua ion has revealed the core structure of Mo3(μ-O)(μ-S)2(μ3-S).
Crystal and Molecular Structure of Bis-1,2,5-thiadiazolotetracyano-quinodimethane. A Noval Acceptor Forming Highly Conductive Complexes
Authors: Kabuto Chizuko , Suzuki Takanori , Yamashita Yoshiro , Mukai Toshio 
Published: July 2006

Abstract
The crystal structure of bis-1,2,5-thiadiazolotetracyanoquinodimethane showed stacks of two-dimensionally expanded sheet-like networks, in which the roughly coplanar molesules are connected to one another by way of the rhombohedral linkage involving short S–NC contacts of 3.03 Å.
A Bioreactor Used for the On-Line Determination of Cholesterol Distribution in Human Serum Lipoprotein Classes
Authors: Makino Keisuke , Sasaki Ichiro , Takeuchi Tamio , Umino Masuo , Hara Ichiro 
Published: July 2006

Abstract
On-line detection of cholesterol in each human serum lipoprotein class could be performed by combining a bioreactor system prepared by immobilizing cholesterol ester hydrorase and cholesterol oxidase on the same matrix with a metal free size-exclusion chromatographic system separating different classes of lipoproteins.
Synthesis and Consecutive Double Diels–Alder Cycloadditions of 3-Methylene-5-phenylsulfinyl-1-pentene as a Synthetic Equivalent of Parent Cross-conjugated Triene, 3-Methylene-1,4-pentadiene
Authors: Wada Eiji , Nagasaki Noritaka , Kanemasa Shuji , Tsuge Otohiko 
Published: July 2006

Abstract
3-Methylene-5-phenylsulfinyl-1-pentene undergoes stepwise double Diels–Alder cycloadditions with two different dienophiles to afford hydronaphthalene skeletons. This sequence corresponds to cross type of diene-transmissive Diels-Alder cycloaddition of parent 3-methylene-1,4-pentadiene.
Cation Assisted Lattice Improvement of Highly Siliceous ZSM-5 upon Prolonged Heat Treatment
Authors: Kraushaar Bettina , Haan Jan W de , Ven Leo J M van de , Hooff Jan H C van 
Published: July 2006

Abstract
Prolonged heat treatment of highly siliceous, template-free ZSM-5 containing Na+ or K+ causes improvement of the lattice structure, migration of alkaline ions to the outer layers of the zeolite particles as shown by XPS and an increased isolation of ≡ Si–ONa sites from ≡ Si–OH sites, as shown by 29Si CP MAS NMR analyses of silylated products.
CYCLIC VOLTAMMETRY OF p-TROPOQUINONES
Authors: Mori Akira , Kusaba Tomoyuki , Isayama Yasutoshi , Takeshita Hitoshi 
Published: July 2006

Abstract
The first and the second half-wave potentials of p-tropoquinones measured by CV are linear to the Hammett’s Σσp and Σσm, respectively. Their smaller electrostatic repulsion than p-benzoquinones can be attributable to the characteristic three carbonyl system.
Clay Montmorillonite-Catalyzed Aldol Reactions of Silyl Enol Ethers with Aldehydes and Acetals
Authors: Kawai Motomitsu , Onaka Makoto , Izumi Yusuke 
Published: July 2006

Abstract
By the use of clay montmorillonite as a catalyst, cross aldol adducts are obtained from silyl enol ethers and aldehydes or acetals. The diastereoselectivity in the reaction is significantly sensitive to the solvent used.
Reductive Coupling of 2,2-Dibromo-1,1,1,3,3,3-hexaalkyltrisilanes. A Novel Route to Persilylcyclotetrasilanes of the Type [(R1R2R3Si)2Si]4
Authors: Matsumoto Hideyuki , Yokoyama Noriyasu , Sakamoto Atsushi , Aramaki Yumiko , Endo Reiko , Nagai Yoichiro 
Published: July 2006

Abstract
Persilylcyclotetrasilanes of the type [(R1R2R3Si)2Si]4 (R1 = R2 = R3 = Me; R1 = Et, R2 = R3 = Me) were readily obtained by the reductive coupling of the corresponding 2,2-dibromo-1,1,1,3,3,3-hexaalkyltrisilanes using sodium; the Si4 frameworks of these persilyl compounds act as much more intense chromophore than those of peralkyl analogues.
Anomalous Fluorescence Quenching of Pyrene by Methylviologen in Aqueous Solution. The Formation of Ground-State Nonfluorescent Complex between the Reactants
Authors: Kusumoto Yoshihumi , Ihara Satoru , Kurawaki Junichi , Satake Iwao 
Published: July 2006

Abstract
The quenching of pyrene fluorescence by methylviologen in aqueous solution proceeded via both dynamic and static processes. It was shown that the formation of a ground-state “dark” complex between the reactants is responsible for the latter process.
Isotachophoretic Analysis of Sequence-Isomeric Nucleotides in the Presence of Sequence-Selective Intercalator
Authors: Dohtsu Kunihiko , Katayama Yoshiki , Takagi Makoto 
Published: July 2006

Abstract
A new chromatographic technique for separating oligonucleotide sequence isomers is described. Nucleotide isomers are chromatographed in the presence of organic reagent which binds to polynucleotides or DNA sequence-selectively. The separation between CpG and GpC was achieved in an isotachophoresis mode by using quinacrine as “intercalator” under neutral pH conditions.
119Sn-Moessbauer Spectroscopic Studies of Tin(IV) Chloride Adducts of Ferrocenylruthenocene and Biruthenocene
Authors: Watanabe Masanobu , Motoyama Izumi , Sano Hirotoshi 
Published: July 2006

Abstract
An orange colored stable adduct of SnCl4 with biruthenocene was prepared by treating SnCl4 with biruthenocene in a dry solution of benzene mixed with hexane, while a less stable adduct with ferrocenylruthenocene was obtained in the same procedure. Covalently bonded tin(IV) species were found in 119Sn-Moessbauer spectroscopy of both the adducts. The results suggest the presence of a direct chemical bonding between Ru and Sn atoms in these adducts.
A NOVEL NUCLEOPHILIC SUBSTITUTION OF THE FORMYL GROUP IN p-NITROBENZALDEHYDE WITH SOME CARBANIONS
Authors: Iwasaki Genji , Saeki Seitaro , Hamana Masatomo 
Published: July 2006

Abstract
p-Nitrobenzaldehyde reacts with some active methylene compounds in the presence of a strong base at low temperatures to give p-substituted nitrobenzenes by the two-step course involving the initial formation of the aldol adducts and the subsequent displacement of the carbinol moieties with excess carbanions.
Remarkable Steric Control for the Enantioselective Cleavage of Amino Acid Esters
Authors: Ueoka Ryuichi , Matsumoto Yoko , Yoshino Takashige , Watanabe Noboru , Omura Kazushi , Murakami Yukito 
Published: July 2006

Abstract
The perfect enantioselective catalysis was observed for the hydrolytic cleavage of p-nitrophenyl N-dodecanoyl-d(l)-phenylalaninates by N-benzyloxycarbonyl-l-phenylalanyl-l-histidyl-l-leucine in specific co-aggregates composed of a cationic doublechain surfactant and a cationic, an anionic, or a nonionic single-chain surfactant.
Crystal Structures of Bromo-Bridged One-Dimensional Mixed-Metal Compounds, [NiII(en)2][PtIVBr2(en)2](ClO4)4 and [PdII(en)2][PtIVBr2(en)2](ClO4)4
Authors: Toriumi Koshiro , Yamashita Masahiro , Murase Ichiro 
Published: July 2006

Abstract
The metal-alternated linear chain structures of the title compounds have been determined by X-ray analyses. Their structural parameters along the chains in the hetero-metal systems show weak MII···M′IV interactions compared with the homo-metal systems.
Structural Revision of Isoconcinndiol by Its Synthesis
Authors: Fujiwara Shigeki , Takeda Kunio , Uyehara Tadao , Kato Tadahiro 
Published: July 2006

Abstract
The originally proposed formula of isoconcinndiol was revised to (3R*,8S*,13R*)-enantio-labd-14-ene-8,13-diol by its synthesis.
REACTION OF 1-TRIMETHYLSILYLCYCLOPROPYLLITHIUM DERIVATIVES WITH DICHLORO-METHYL METHYL ETHER. A NOVEL SYNTHESIS OF CYCLOPROPYL SILYL KETONES
Authors: Nakajima Tadashi , Tanabe Masaru , Ohno Katsuhiko , Segi Masahito , Suga Sohei 
Published: July 2006

Abstract
Treatment of 1-trimethylsilylcyclopropyllithium derivatives with dichloromethyl methyl ether affords the corresponding new cyclopropyl silyl ketones in moderate yield. This reaction involves the intramolecular 1,2-silicon shift from carbon to carbon.
The Highly Stereoselective Michael Reaction of α,β-Unsaturated Ketones with Silyl Enol Ethers of Thioesters Catalyzed by Trityl Salts. A Facile Stereoselective Synthesis of 5-Oxocarboxylic Acid Ester Derivatives
Authors: Mukaiyama Teruaki , Tamura Masanori , Kobayashi Shu 
Published: July 2006

Abstract
In the presence of a catalytic amount of trityl salts, silyl enol ethers of thioesters stereoselectively react with α,β-unsaturated ketones to afford the Michael adducts in high yields. 5-Oxocarboxylic acid ester derivatives, useful synthetic precursors of various naturally occurring compounds, are stereoselectively obtained by this procedure.
Unusual Farnesyl Pyrophosphate Synthetase Reaction of an Artificial Substrate with Ni2+
Authors: Maki Yuji , Watanabe Gotaro , Saito Akio , Koyama Tanetoshi , Ogura Kyozo 
Published: July 2006

Abstract
Farnesyl pyrophosphate (FPP) synthetase catalyzed the condensation of geranyl pyrophosphate (GPP) with 4-methyl-4-pentenyl pyro phosphate in the presence of Ni2+ to give an unexpected product, homofarnesyl pyrophosphate having an exomethylene group, together with Z-homofarnesyl pyrophosphate.
Separation of Isomeric Alcohols by Selective Complexation with N,N,N′,N′-Tetracyclohexylfumaramide and N,N,N′,N′-Tetraisopropylfumaramide, and Structures of Two Resulting Crystalline Adducts
Authors: Toda Fumio , Tagami Yasunori , Mak Thomas C W 
Published: July 2006

Abstract
The title host compounds have been utilized in the efficient separation of isomeric alcohols by selective complexation. X-Ray analysis has shown that their 1:2 crystalline adducts with cresols comprise centrosymmetric guest–host–guest aggregates consolidated by O–H···O hydrogen bonding.
Photoluminescent Properties of p-GaAs/Electrolyte Interface. Evidence for Bandedge Shift during Photoelectrochemical Hydrogen Evolution Reaction
Authors: Kaneko Susumu , Uosaki Kohei , Kita Hideaki 
Published: July 2006

Abstract
When the potential of p-GaAs electrode was pulsed from −1.0 V (vs. Ag/AgCl) to a potential more positive than ca. −0.35 V, PL intensity increased sharply and the PL spectrum broadened but the intensity declined and the spectrum shrank gradually with time. These results are explained by the bandedge shift during the photoelectrochemical hydrogen evolution.
The Asymmetric Diels–Alder Reaction by the Use of a Catalytic Amount of a Chiral Titanium Reagent
Authors: Narasaka Koichi , Inoue Masayuki , Yamada Tohru 
Published: July 2006

Abstract
The Diels–Alder reaction between prochiral dienophiles and cyclopentadiene proceeds in an enantioselective manner by the use of a catalytic amount of a chiral alkoxy titanium(IV) in the presence of Molecular Sieves 4A.
A NONCYCLIC NEUTRAL CARRIER EXHIBITING EXCELLENTLY Li+-SELECTIVE TRANSPORT
Authors: Hiratani Kazuhisa , Taguchi Kazuhiro , Sugihara Hideki , Okada Tatsuhiro 
Published: July 2006

Abstract
3,3-Bis(8-quinolyloxymethyl)oxetane, which has been newly synthesized as a carrier in the cation transport through liquid membranes, exhibits extremely high Li+-selectivity. From the investigation of structural effect, introduction of 8-quinolyl terminal group, oxetane ring, and trimethylene chain to the structure of carrier is suggested to be important for excellent Li+-selectivity.
Synthesis of Pseudo-Disaccharide Derivative Having d-Manno Configuration, an Acarviosin Analogue
Authors: Ogawa Seiichiro , Sugizaki Hiroyasu 
Published: July 2006

Abstract
Acarviosin analogue, 4-deoxy-4-{[(1S)-(1,4/5,6)-4,5,6-trihydroxy-3-hydroxymethyl-2-cyclohexen-1-yl]amino}-d-mannopyranose, has been synthesized as the octaacetyl derivative by coupling of 1,6:3,4-dianhydro-2-O-tosyl-3-d-galactopyranose and the cyclohexenylamine derivative, followed by further transformation.
Preparation of Heat Resistant Ceramic Support with Large Surface Area from Composite Alkoxides
Authors: Machida Masato , Eguchi Koichi , Arai Hiromichi 
Published: July 2006

Abstract
The surface area of BaO·6Al2O3 was greatly enhanced by the preparation from alkoxide compared with that prepared from BaCO3/γ-Al2O3 mixture, and the maximum value attained after calcination at 1600 °C was 11.0 m2/g. The preparation from alkoxides reduces the temperature for the formation of BaO·Al2O3 because of uniform mixing of the components. The large surface area of support brings about high catalytic activity for combustion of methane.
Nascent Vibrational Distribution of CO+(A2Π) Resulting from the He(23S) + CO Penning Ionization in a Low-pressure Apparatus
Authors: Sekiya Hiroshi , Tsuji Masaharu , Nishimura Yukio 
Published: July 2006

Abstract
Nascent vibrational distribution of CO+(A2Π) produced from the He(23S) + CO Penning ionization has been determined by optical emission spectroscopy. Experiments were performed by using a new low-pressure apparatus utilizing a mild expansion of helium metastable atoms generated in a flow tube.
Regio- and Stereo-selective Oxidation of gem-Dimethyl Olefins via [2,3]-Sigmatropic Rearrangement of Allyl Amine Oxides
Authors: Inoue Seiichi , Iwase Norimichi , Miyamoto Osamu , Sato Kikumasa 
Published: July 2006

Abstract
Highly regio- and stereo-selective oxidation sequences are described for the efficient conversion of the gem-dimethyl olefin terminus of acyclic terpenes to terminal trans-allylic alcohols and trans-α,β-unsaturated aldehydes.
Photolysis of 7-Oxanorbornadienes Condensed with Tropone. A Facile Formation of 6-Hydroxyazulenes
Authors: Nakazawa Tomoo , Ashizawa Mariko , Jinguji Mamoru , Yamaguchi Masakazu , Murata Ichiro 
Published: July 2006

Abstract
Irradiation of 12-oxatricyclo[7.2.1.02,8]dodeca-2(8),3,6,10-tetraen-5-ones having one or two bridge-head alkyl substituents in methanol with high pressure Hg lamp gave 6-hydroxy- or 1-alkyl-6-hydroxyazulenes together with 3-acyl- or 1-alkyl-3-acylazulenes as by-products in good combined yields.