bluuebunny/crossref_metadata_2025_split huggingface dataset:
9,10-DICYANOANTHRACENE-SENSITIZED PHOTOISOMERIZATION OF 1,2-BIS(4-METHOXYPHENYL)CYCLOPROPANES INVOLVING A CHAIN PROCESS
Authors: Mizuno Kazuhiko , Hiromoto Ziro , Ohnishi Keiji , Otsuji Yoshio 
Published: July 2006

Abstract
The photochemical cis-trans isomerization of cis- and trans-1,2-bis(4-methoxyphenyl)cyclopropanes sensitized by 9,10-dicyanoanthracene in aerated acetonitrile solutions proceeds via a chain process in which a cation radical produced from the cyclopropanes is involved as a chain carrier. The quantum yield for this photoisomerization is remarkably enhanced by the addition of air and phenanthrene.
SYNTHESIS OF dl-(2E,6Z,10E)-CERICERENE FOR ELUCIDATION OF THE PROPOSED STRUCTURE OF CERICEROL-I
Authors: Ikeda Yoshie , Aoki Mario , Uyehara Tadao , Kato Tadahiro , Yokoyama Toshiro 
Published: July 2006

Abstract
dl-(2E,6Z,10E)-Cericerene was synthesized and its spectral data were compared with those of cericerene derived from cericerol-I, revealing that the reported arrangement of annular double bonds of cericerol-I and related compounds should be revised.
THE MEASUREMENT OF INFRAREL REFLECTION-ABSORPTION SPECTRA OF THIN POLYVINYLACETATE FILMS FORMED ON SILICON SURFACES
Authors: Hatta Aritada , Matsumoto Hidetoshi , Suëtaka Wataru 
Published: July 2006

Abstract
Infrared reflection-absorption spectra of thin polyvinylacetate films formed on silicon surfaces have been measured by both double-beam and polarization modulation methods. The spectrum is observed as a reflectivity maximum or minimum depending upon the angle of incidence. It is shown that polarization modulation method is extremely useful for investigating surface films on silicon.
HIGH PERFORMANCE LIQUID CHROMATOGRAPHY OF BOVINE AND HUMAN CARBONIC ANHYDRASE, COMPONENTS A AND B
Authors: Hirose Junzo , Nakagawa Mikiko , Achiwa Kyoko , Noji Masahide , Kidani Yoshinori 
Published: July 2006

Abstract
Bovine carbonic anhydrase [carbonate hydrolyase, EC 4.2.11] has been analyzed by high performance liquid chromatography, HPLC, using a TSK column, IEX-540 DEAE, eluted with 0.01 mol dm−3 phosphate buffer of pH 6.5. By means of this method, components A and B of bovine carbonic anhydrase, BCA(A) and BCA(B), showed peaks at tR=13.5 and 5.5 min, and the apo-BCA(A) and apo-BCA(B) showed peaks at tR=15.8 and 6.0 min, respectively. Under the same conditions, human CA(B) showed a peak at tR=2.4 min.
PARTICLE FORMATION OF GAS-PHASE SILICON COMPOUNDS AND AROMATIC COMPOUNDS BY LIGHT OR ELECTRON IRRADIATION
Authors: Nagata Yoshio , Dohmaru Takaaki , Fujita Shin-ichi , Oka Kunio , Taniguchi Setsuo 
Published: July 2006

Abstract
A number of silicon compounds and aromatic compounds form particles under UV light or electron beam irradiation in the gas phase. Carbonyl compounds, halogen compounds and some aromatic compounds act as initiators for photo-induced particle formation of silicon compounds.
STERICALLY BULKY PORPHYRINS: THE ATROPISOMERS OF TETRAKIS(3,5-DI-TERT-BUTYL-2-NITROPHENYL)PORPHYRIN AND THEIR IRON(III) COMPLEXES
Authors: Miyamoto T Ken , Hasegawa Tai , Takagi Shigeru , Sasaki Yukiyoshi 
Published: July 2006

Abstract
A new “bis pocket” porphyrin has been prepared and characterized. Its four geometric isomers (atropisomers) have been separated by chromatography. Each isomer has relatively high conformational stability to light and prolonged heating. Practical utility of this ligand system to iron(III) chemistry has been demonstrated.
REGIOSELECTIVE REACTION OF PHENYLSULFENYL ALLYLIC CARBANION WITH EPOXIDE AND SYNTHESIS OF PROSTAGLANDIN INTERMEDIATE
Authors: Nokami Junzo , Ono Toshio , Nakagawa Satoshi , Wakabayashi Shoji 
Published: July 2006

Abstract
An ambident nucleophile derived from 1-phenylsulfenyloct-2-ene reacts at the α-carbon with epoxide. The reaction has been employed for the preparation of a key intermediate for synthesis of prostaglandins.
ISOLATION OF OPPOSITANE- AND CYCLOEUDESMANE-TYPE SESQUITERPENOIDS FROM TORILIS JAPONICA D.C.
Authors: Itokawa Hideji , Matsumoto Hajime , Mihashi Susumu 
Published: July 2006

Abstract
Oppositane-, eudesmane-, and new cycloeudesmane-type sesquiterpenes were isolated from Torilis japonica D.C. All the compounds can be biogenetically correlated to epoxygermacrene-D.
UNUSUAL KINETIC BEHAVIOR OF BIS-FLAVIN FOR N-BENZYL-1,4-DIHYDRONICOTINAMIDE (BNAH) REDUCTION IN AN AQUEOUS SOLUTION
Authors: Yano Yumihiko , Ohya Eiichi 
Published: July 2006

Abstract
Several bis-flavins linked at 10,10′-positions of isoalloxazine rings were synthesized. The reactivity of each flavin of a bis-flavin was found to be considerably influenced by another intramolecular flavin moiety, depending on the conformation of the bis-flavin.
α-BROMOALLYLSTANNANES AS SYNTHETIC TOOLS: PREPARATIONS AND REACTIVITIES
Authors: Shibasaki Masakatsu , Suzuki Hideyuki , Torisawa Yasuhiro , Ikegami Shiro 
Published: July 2006

Abstract
A couple of useful compounds such as E-1-bromo-3-oxo-1-alkenes, E-1-substituted-1,3-dienes and 3-hydroxy-1-alkynes are prepared from α-bromoallylstannanes derived from the corresponding α,β-unsaturated aldehydes.
SYNTHESIS AND SPECTROSCOPIC PROPERTIES OF POLY(l-1-PYRENYLALANINE)
Authors: Egusa Syun , Sisido Masahiko , Imanishi Yukio 
Published: July 2006

Abstract
A novel aromatic poly(amino acid), poly(l-1-pyrenylalanine), was synthesized as a block copolymer with poly(γ-benzyl Dl-glutamate). The circular dichroism of the block copolymer in trimethyl phosphate indicated a helical arrangement of the pyrenyl groups along the polypeptide chain. The excimer emission was weaker than that from the corresponding racemic copolymer. Two different species of excimers were found by the circularly polarized fluorescence spectrum.
INTERMEDIACY OF CYCLOHEXADIENYL RADICALS WITH AN AROYLOXY GROUP ON THE METHYL-SUBSTITUTED IPSO CARBON ATOM IN PHOTOLYSES OF BIS(2-THIOPHENECARBONYL) AND DIBENZOYL PEROXIDES IN 1,3,5-TRIMETHYLBENZENE
Authors: Takahara Shigeru , Kitamura Akihide , Sakuragi Hirochika , Tokumaru Katsumi 
Published: July 2006

Abstract
Investigation of the products arising from photolyses of bis(2-thiophenecarbonyl) and dibenzoyl peroxides in 1,3,5-trimethylbenzene provided clear evidence for participation of cyclohexadienyl radicals with the aroyloxy group on the methyl-substituted ipso carbon atom in formation of 2′,3′,4,5′,6-pentamethyldiphenylmethane through recombination with 3,5-dimethylphenylmethyl radicals.
STRUCTURE OF Zn(II) COMPLEX WITH CYCLO(l-METHIONYL-l-HISTIDYL)
Authors: Kojima Yoshitane , Ishio Noriaki , Yamashita Tetsushi , Hirotsu Ken 
Published: July 2006

Abstract
X-Ray structure analysis of a Zn(II) complex with cyclo(l-methionyl-l-histidyl) as a metalloprotein model shows tetrahedral coordination of Zn by each 1-N atom of four imidazole groups of histidine residues.
SYNTHESIS OF AMPHIPHILIC PORPHINATO IRON COMPLEXES HAVING PHOSPHORYLCHOLINE GROUPS
Authors: Matsushita Yoh-ichi , Hasegawa Etsuo , Eshima Kiyoshi , Tsuchida Eishun 
Published: July 2006

Abstract
New porphyrin derivatives having alkyl phosphorylcholine groups as amphiphilic moieties and their iron complexes were prepared. Based on the hydrophobic–hydrophilic balance, some of the synthesized complexes were efficiently embedded in the bilayer of phospholipid liposomes.
REFLECTION SPECTRA AND ELECTRICAL CONDUCTIVITY OF (DBTTF)8–(SnCl6)3
Authors: Tanaka Masashi , Ando Yukimi , Tanaka Jiro 
Published: July 2006

Abstract
Optical reflection and dc conductivity measurements of (DBTTF)8–(SnCl6)3 single crystals were carried out. The temperature dependence of the conductivity behaves as (A/T3) exp(−Eg/2kT) in the temperature range above 85 K. The obtained activation energy Δ = 1010 K is fairly comparable with the result estimated by the optical study.
CATION-EXCHANGE PROPERTIES OF COPRECIPITATED SILICA-TITANIA GEL
Authors: Kaneko Shoji , Tsukamoto Kazuyoshi 
Published: July 2006

Abstract
Silica-titania gel was found to be a polybasic acid and to exhibit ion-exchange abilities for alkali metal ions. In the chloride solutions, the ion-exchange reaction was relevant to ammonium and sodium ions on the gels, and in the hydroxide solutions, it also relevant to proton in addition to these two ions.
MICROENVIRONMENT OF PHOSPHINE GROUP ON A PHOSPHINATED SILICA SURFACE AS PROBED BY SOLID-STATE HIGH-RESOLUTION 31P NMR SPECTROSCOPY
Authors: Shinoda Sumio , Nakamura Kenichi , Saito Yasukazu 
Published: July 2006

Abstract
Two types of microenvironments were discriminated for the Ph2P(CH2)8Si≡ group fixed on a silica gel by use of solid-state high-resolution 31P NMR spectroscopy. While one is also detectable with conventional (solution) NMR in a suspended state, another shows more solid-like mobility.
FORMATION AND REACTION OF CARBONYL YLIDES. 1,3-DIPOLAR CYCLOADDITION OF 1-METHOXY-2-BENZOPYRYLIUM-4-OLATE TO CARBONYL COMPOUNDS
Authors: Ibata Toshikazu , Toyoda Jiro 
Published: July 2006

Abstract
Copper(II) acetylacetonate-catalyzed decomposition of o-methoxy-carbonyl-α-diazoacetophenone in benzene in the presence of carbonyl compounds gave 1,3-dipolar cycloadducts of l-methoxy-2-benzopyrylium-4-olate with carbonyl compounds in high yields.
DIRECT SYNTHESIS OF 1,4-BUTANEDIOL FROM ALLYL ALCOHOL USING CARBON MONOXIDE AND WATER IN THE PRESENCE OF Rh6(CO)16-PROPANEDIAMINE SYSTEM
Authors: Kaneda Kiyotomi , Imanaka Toshinobu , Teranishi Shiichiro 
Published: July 2006

Abstract
Rh6(CO)16-propanediamine system catalyzes a direct route to 1,4-butanediol from allyl alcohol under the water gas shift reaction condition. Using an aminopyridine in place of the diamine gives γ-butyrolactone in a good yield.
A NEW GENERATION OF α-OXA-ACYLIMINIUM IONS AND AN APPLICATION TO A SYNTHESIS OF OXAZOLO[4,3,a]ISOQUINOLINE AND RELATED COMPOUNDS
Authors: Kano Shinzo , Yuasa Yoko , Yokomatsu Tsutomu , Shibuya Shiroshi 
Published: July 2006

Abstract
The carbomates, obtained by the reaction of the azide with ethyl glycolate and ethyl lactate, were reduced with i-Bu2AlH and the reduction products were treated with formic acid to give the corresponding oxazolo[4,3,-a]isoquinolines. By this method, the thieno[3,2-c]pyridine analogues were also pepared.
STEREOSELECTIVITY OF DIENE-TRANSMISSIVE DIELS-ALDER REACTION; CYCLOADDITION REACTION OF CROSS-CONJUGATED TRIENE SYSTEM TO OLEFINIC DIENOPHILES
Authors: Tsuge Otohiko , Wada Eiji , Kanemasa Shuji 
Published: July 2006

Abstract
The stereoselectivity of diene-transmissive Diels–Alder reaction of a cross-conjugated triene, 3-benzylidene-2,4-bis(trimethylsilyloxy)-1,4-pentadiene, with a variety of olefinic dienophiles was investigated. Cyclic dienophiles gave the stereoselective bis-adducts via the endo mono-cycloadducts, whereas the exo mono-adducts were obtained as major products in the reaction with acyclic dienophiles. The steric regulation of diene-transmissive Diels–Alder reaction was discussed.
ON THE SIMILARITY OF THE HIGH-RESOLUTION SOLID-STATE 29Si AND 27Al SPECTRA OF SILICALITE AND DEALUMINATED ZEOLITE ZSM-5
Authors: Thomas John M , Klinowski Jacek , Anderson Michael W 
Published: July 2006

Abstract
On dealuminating a sample of zeolite ZSM-5 (Si/Al ratio of 33.3 initially, 119 finally) at 540 °C using silicon tetrachloride vapour, the 29Si magic-angle-spinning NMR spectrum develops fine structure akin to that seen in the spectrum of silicalite, while-the 27Al spectrum confirms that Al has been removed from tetrahedral sites. This lends further support to the view that the framework structures of ZSM-5 and silicalite are closely similar.
SYNTHESIS OF QUADRIVALENT METAL ANTIMONATES AS ION EXCHANGERS AND THEIR SELECTIVITIES FOR ALKALI METAL IONS
Authors: Abe Mitsuo , Tsuji Masamichi 
Published: July 2006

Abstract
Various antimonates of quadrivalent metals were synthesized by hydrolysis of a mixed solution with antimony(V) chloride solution and a solution of quadrivalent metal salt. The equilibrium distribution coefficients for alkali metal ions on the samples prepared were determined for their selectivities.
MULTICENTER ORGANIC REDOX SYSTEM. NOVEL REDUCTION OF BISNICOTINAMIDES AS ENHANCED BY INTRAMOLECULAR FACE-TO-FACE GEOMETRY
Authors: Murakami Yukito , Kikuchi Jun-ichi , Nishida Koji 
Published: July 2006

Abstract
The cyclic “face-to-face” bisnicotinamide, cBisNA+(C4,o-Xyl), and its noncyclic counterpart, BisNA+(Et,o-Xyl), were readily reduced with the hydroxide ion to afford intramolecular 6,6′-coupling products. The effect of rigid intramolecular geometry on the reactivity was discussed in reference to the similar geometrical effect given by bisdihydronicotinamides on the reduction of a carbonyl substrate.
A FACILE CLEAVAGE OF BENZYLIDENE ACETALS WITH DIISOBUTYLALUMINUM HYDRIDE
Authors: Takano Seiichi , Akiyama Masashi , Sato Seiji , Ogasawara Kunio 
Published: July 2006

Abstract
Benzylidene acetals of 1,2- and 1,3-glycols are easily cleft by diisobutylaluminum hydride in a toluene solution at 0 °C–room temperature to give the corresponding monobenzyl ethers of the glycols. In general the reaction proceeds excellently in regioselective manner depending on the stereochemical environment.
FACILE GENERATION OF ALKYL RADICALS BY THE PALLADIUM ON CARBON CATALYZED THERMOLYSIS OF ALKYLMERCURIALS
Authors: Iwamura Michiko , Futibe Shohaku , Matukura Tetuo , Sano Masahide 
Published: July 2006

Abstract
Dibenzylmercury was completely decomposed within 20 min in refluxing xylene in the presence of a catalytic amount of 5% palladium on carbon, giving mercury and dibenzyl. The generation of benzyl radicals was confirmed by the formation of 1,3-adduct to α-phenyl-N-benzylnitrone and 9,10-adduct to anthracene. Other alkylmercurials showed a similar but less satisfactory result.
(TETRABENZPORPHINATO)IRON
Authors: Kobayashi Nagao , Koshiyama Masami , Osa Tetsuo 
Published: July 2006

Abstract
The iron complex of tetrabenzporphine was prepared and characterized. Cyclic voltammetry, and UV absorption, EPR, and MCD spectroscopy have revealed that its monochloride and bisimidazole complexes are trivalent iron high- and low-spin complexes, respectively.
MARKED EFFECTS OF RING SIZE ON THE CORRELATED ROTATION OF THE CYCLOALKYL GROUPS OF 1,1-DICYCLOALKYLMETHYLENECYCLOALKANES
Authors: Takeuchi Ken’ichi , Toyama Tetsuo , Kubota Yasuhiro , Okamoto Kunio 
Published: July 2006

Abstract
Correlated rotation of the cycloalkyl groups has been observed by 13C NMR for the title compounds containing six-, seven-, or eight-membered rings. The ΔH≠ value increases with the increase in the ring size, attaining 79.5 ± 2.1 kJ mol−1 when all the three rings are eight-membered. Molecular mechanics calculations indicated that the magnitude of internal angles is a major contributing factor.
SELECTIVE REMOVAL OF TERMINAL DIMETHOXYTRITYL GROUPS
Authors: Takaku Hiroshi , Morita Kazuhiro , Sumiuchi Takashi 
Published: July 2006

Abstract
N 6’N6,3′,5′-O-Protected deoxyadenosine derivatives were found to be key intermediate for synthesis of oligodeoxyribonucleotides. Treatment of protected deoxyadenosine derivatives with 3% trichloroacetic acid in nitromethane-methanol (95:5) gave the corresponding de-dimethoxytritylated deoxyadenosine derivatives without causing any damage to the glycosidic bond.
BIS(1-TRIFLUOROMETHYL-2,2,2-TRIFLUOROETHOXY)TRIPHENYLPHOSPHORANE. A NEW ROUTE TO TRIFLUOROMETHYLATED HETEROCYCLES
Authors: Kubota Toshio , Yamamoto Kazuhiro , Tanaka Tatsuo 
Published: July 2006

Abstract
Bis(1-trifluoromethyl-2,2,2-trifluoroethoxy)triphenylphosphorane(1) readily reacted with anilines to form N-hexafluoroisopropylated products(2). By the dehydrofluorination of 2, 2-arylamino-1,1,3,3,3-pentafluoropropenes(3) were obtained. Furthermore, when anilines with o-functional group were used as nucleophile, benzo-1,4-dihetero-six membered rings that have CF3 group at N-α-position were obtained.
PREPARATION OF DIPHENYLPHOSPHINE OXIDES BY DEOXYGENATION OF AN α-HYDROXYL GROUP WITH DIPHOSPHORUS TETRAIODIDE
Authors: Yamashita Mitsuji , Tsunekawa Kenji , Sugiura Motoyuki , Oshikawa Tatsuo , Inokawa Saburo 
Published: July 2006

Abstract
Deoxygenation of (1-hydroxyethyl)diphenylphosphine oxide derivatives was first achieved by a reaction with diphosphorus tetraiodide to give ethyldiphenylphosphine oxide derivatives. The reaction was also successful to prepare cyclohexyldiphenylphosphine oxide.
PHOTOINDUCED CHARGE SEPARATION, ELECTRON STORAGE AND ELECTRON TRANSPORT TO PLATINUM COLLOID BY THE USE OF VIOLOGEN POLYMER
Authors: Ohsako Tatsuya , Sakamoto Tetsuo , Matsuo Taku 
Published: July 2006

Abstract
Viologen polymers were successfully used to collect photoliberated electron from polypyridineruthenium(II) complexes by the use of a zwitterionic viologen as an electron mediator. The collected electrons were successively trapped by platinum colloid supported on the viologen polymers. The viologen polymer thus proved to be an efficient electron transporting system from photoredox reaction center to multi-electron redox catalyst for chemical solar energy conversion.
SYNTHESIS OF 11-DEOXYANTHRACYCLINONE PRECURSOR. A NEW STRATEGY TOWARD TETRACYCLIC SYSTEM VIA TANDEM 1,4/[4+2] ADDITION
Authors: Naruta Yoshinori , Kashiwagi Masanori , Nishigaichi Yutaka , Uno Hidemitsu , Maruyama Kazuhiro 
Published: July 2006

Abstract
Direct and regioselective reaction of 2,4-pentadienyltrimethylstannane with 3-acryloyl-5-methoxy-1,4-naphthoqinone afforded a tetracyclic compound, a key precursor for synthesizing 11-deoxyanthracycline antibiotics, by single step.
POLYMER-ANCHORED VANADIUM(V) AND MOLYBDENUM(VI) CATALYSTS FOR THE REGIOSELECTIVE EPOXIDATION OF (E)-GERANIOL WITH t-BUTYL HYDROPEROXIDE
Authors: Yokoyama Toshiro , Nishizawa Masato , Kimura Tetsuo , Suzuki Toshishige M 
Published: July 2006

Abstract
The reaction of (E)-geraniol with t-BuOOH in the presence of polymer-anchored VV or MoVI complexes gave 2,3-epoxygeraniol in high yields. The conversion and the selectivity by the MR-type polymer catalysts containing VV were comparable to those given by homogeneous catalyst based on VO(acac)2. The present catalysts can be used repeatedly without causing significant decrease in catalytic activity.
10-OXO-, 10-HYDROXY-, AND 10-METHOXYCEMBRENES FROM THE SOFT CORAL SARCOPHYTA ELEGANS
Authors: Uchio Yasuto , Nitta Masayoshi , Nozaki Hiroshi , Nakayama Mitsuru , Iwagawa Tetsuo , Hase Tsunao 
Published: July 2006

Abstract
The structures and absolute configurations of three cembranoids, 10-oxo-, 10-hydroxy-, and 10-methoxycembrenes, isolated from the soft coral Sarcophyta elegans, are reported.
SYNTHESIS AND CRYSTAL DATA OF NEW Ln3S4 (Ln=La,Ce,Sm) AND LnS2 (Ln=Nd) TYPE SULFIDES CONTAINING A SMALL AMOUNT OF ANTIMONY1)
Authors: Gao Jin-zhang , Nakai Izumi , Miyawaki Ritsuro , Nagashima Kozo 
Published: July 2006

Abstract
Single crystals of four new lanthanoid sulfides were prepared by the evacuated silica-tube method: Ln3−xSbxS4 with 0.02≤x≤0.1, where Ln=La, Ce, and Sm; Ln1−xSbxS2 with x≅0.02, where Ln=Nd. They are all reddish black crystals with plate-like habits. The crystals belong to the orthorhombic system with space group P21221.
ACETYLENE COORDINATION TO THE POLYMER-BOUND METHYLCYCLOPENTADIENYL MANGANESE COMPLEX
Authors: Kurimura Yoshimi , Ohta Fumihiko , Ohtsuka Nobuyuki , Tsuchida Eishun 
Published: July 2006

Abstract
Stable polymer-bound η2-acetylene complex has been prepared by direct reaction of (η5-methylvinylcyclopentadienyl)tricarbonylmanganese (MeVCpMn(CO)3)-co-styrene membrane with acetylene on UV irradiation under mild conditions. Reaction of MeVCpMn(CO)3-co-N-vinylpyrrolidone under acetylene has also been investigated.
VAPOR PHASE HYDROCARBONYLATION OF METHANOL WITH COBALT–PALLADIUM ON ACTIVE CARBON CATALYSTS
Authors: Fujimoto Kaoru , Setoyama To-oru , Tominaga Hiro-o 
Published: July 2006

Abstract
Acetaldehyde was formed from methanol by vapor phase reaction with synthesis gas over supported cobalt–palladium catalysts in the presence of methyl iodide, at temperatures between 180 and 240°C and at pressures between 10 and 65 atm. Active carbon carrier was found essential for bringing about the catalytic activity of cobalt. Addition of soft alkali metal salts and palladium accelerated the rate of acetaldehyde formation.
A NEW APPROACH TO (±)-LEUKOTRIENE A4 METHYL ESTER
Authors: Tsuboi Sadao , Masuda Toshihide , Takeda Akira 
Published: July 2006

Abstract
A stereoselective synthesis of (2E,4Z,7Z)-2,4,7-tridecatrienol, a key intermediate in the synthesis of leukotriene A4 methyl ester, is established via alumina-promoted rearrangement of ethyl (7Z)-3,4,7-tridecatrienoate to ethyl (2E,4Z,7Z)-2,4,7-tridecatrienoate as a key step.
BIS(p-METHOXYPHENYL)SELENOXIDE AS A COOXIDANT FOR SELENIUM DIOXIDE OXIDATION OF BENZYL ALCOHOLS
Authors: Ogura Fumio , Otsubo Tetsuo , Ariyoshi Kimio , Yamaguchi Hachiro 
Published: July 2006

Abstract
The title selenoxide provides a new oxidizing system in combination with catalytic selenium dioxide for oxidation of benzyl alcohols to benzaldehydes. An effective redox cycle between selenium and the dioxide is suggested.
THE EFFECT OF DBU(1,8-DIAZABICYCLO[5.4.0]NDECENE-7) ON THE WATER GAS SHIFT REACTION CATALYZED BY M3(CO)12(M = Ru, Os)
Authors: Wada Fumio , Shimuta Masanori , Goto Toshihiro , Ikeda Toshihiko , Kikukawa Kiyoshi , Matsuda Tsutomu 
Published: July 2006

Abstract
DBU was found to be an effective cocatalyst for the water gas shift reaction(WGSR) catalyzed by M3(CO)12(M= Ru, Os), especially by Os3(CO)12 under basic conditions. The dianion cluster, H2M4(CO)122− was isolated in the DBU-M3(CO)12 catalyst system as bis(triphenylphosphine)iminium salts and was considered to be one of the active species in the reaction.
DIFFERENCE IN THE CATALYTIC ACTIVITIES FOR THE CONVERSION OF METHANOL BETWEEN TRIVALENT AND TETRAVALENT Ti ION EXCHANGED FORMS OF LAYERED SILICATE
Authors: Morikawa Yutaka , Wang Fey-long , Moro-Oka Yoshihiko , Ikawa Tsuneo 
Published: July 2006

Abstract
The catalytic activities of Ti ion exchanged forms of layered silicate minerals are completely different by the ionic valencies. Methanol was dehydrated to dimethyl ether and hydrocarbons over Ti(IV) forms of the minerals, whereas dehydrogenated to methyl formate and methylal over Ti(III) forms of the minerals. It is of particular interest that acetone is formed from methanol over Ti(III) form of fluoro tetrasilicic mica (Ti (III)-TSM).
MOLECULAR STRUCTURE OF A BINUCLEAR COBALT DIOXYGEN COMPLEX, [Co2(2,6-BIS[BIS(2-PYRIDYLMETHYL)AMINOMETHYL]-4-METHYLPHENOLATO)(BENZOATO)DIOXYGEN] (BF4)2·2H2O
Authors: Suzuki Masatatsu , Ueda Ikuhiko , Kanatomi Hajime , Murase Ichiro 
Published: July 2006

Abstract
The molecular structure of the title compound has been determined by the X-ray diffractometry. Two cobalt ions are linked by dioxygen, benzoate and phenolate bridges. Reversible O2 binding was observed in the solid state. The O2 bond distance is 1.43 (3) Å which is in the range of those of the μ-peroxo cobalt complexes.
PREPARATION AND CRYSTAL STRUCTURE OF (+)560CD-cis·cis·cis-((2d,9l)-DIAMINO-3,3,8,8-TETRAMETHYL-4,7-DITHIA-1,10-DECANDIOATO)COBALT(III) ION
Authors: Okamoto Ken-ichi , Kanesaka Mikako , Nomoto Masayo , Hidaka Jinsai 
Published: July 2006

Abstract
The crystal structure and absolute configuration of the title complex ion, [Co(Dl-ebp)]+, were determined by an X-ray diffraction study of its (+)546-(ethylenediaminetetraacetato)cobaltate(III) salt pentahydrate. The Dl-ebp acts as sexidentate ligand. The (+)560CD-cis·cis·cis isomer takes s configuration and the chiral sulfur donor atoms take selectively R(S) ,R(S) configuration.
DETERMINATION OF 15 RARE EARTH ELEMENTS BY LIQUID CHROMATOGRAPHY WITH INDUCTIVELY COUPLED PLASMA ATOMIC EMISSION SPECTROMETRIC DETECTION
Authors: Yoshida Kazuo , Fuwa Keiichiro , Haraguchi Hiroki 
Published: July 2006

Abstract
An inductively coupled plasma atomic emission spectrometer (ICP-AES) interfaced with high performance liquid chromatography (HPLC) has been applied to the determination of 15 rare earth elements (14 lanthanide elements and Y). The separation of rare earth elements was performed by HPLC with a cation exchange column using ammonium lactate buffer. The ICP-AES was used as a high-sensitive and an element-selective detector for rare earth elements.