bluuebunny/crossref_metadata_2025_split huggingface dataset:
SELECTIVE PROTECTION OF CARBONYL COMPOUNDS BY GIRARD’S REAGENT USING SILICA GEL AS A SOLID SUPPORT
Authors: Chihara Teiji , Waniguchi Erika , Wakabayashi Tamie , Taya Kazuo 
Published: July 2006

Abstract
The Girard’s reagent, which gives water-soluble derivatives of carbonyl compounds, was used together with silica gel as a protective reagent of them in a non-aqueous solvent system. Less hindered or more reactive carbonyl compounds were selectively protected by this method in competitive reductions.
NONCYCLIC POLYETHERS WITH TWO o-CARBOXYLPHENYL TERMINAL GROUPS EXHIBITING SELECTIVE TRANSPORT FOR ALKALINE EARTH METAL IONS THROUGH LIQUID MEMBRANES. EFFECT OF THE CONCENTRATION OF HYDROXIDE ION ON THE SELECTIVITY
Authors: Hiratani Kazuhisa , Sugihara Hideki , Taguchi Kazuhiro , Iio Kokoro 
Published: July 2006

Abstract
Three noncyclic polyethers containing o-carboxylphenyl groups as both end ones were synthesized. These synthetic carriers exhibit the selectivity for Ca++ or Ba++ in the competitive transport for Mg++, Ca++, and Ba++ in the source phase adjusted to initial pH 8.28 or 9.10 through liquid membranes. It was also found that the selective transport for alkaline earth metal ions can be changed by the concentration of hydroxide ion added.
REACTION BEHAVIOR OF ALKANES WITH CARBON MONOXIDE IN A HF–SbF5 SOLUTION
Authors: Yoneda Norihiko , Fukuhara Tsuyoshi , Takahashi Yukio , Suzuki Akira 
Published: July 2006

Abstract
The reaction of alkanes with carbon monoxide in a HF–SbF5 solution at 30 °C under atmospheric pressure gave significantly different results from those in the Koch-Haaf reaction of alkenes and alcohols in usual strong acids. The results demonstrated that alkanes react very easily under these conditions with preferential formation of secondary carboxylic acids when the alkane has less than six carbon atoms, while a formation of β-scission products occurs, exclusively, with more than seven carbon atoms.
A NEW METHOD FOR THE STEREOSELECTIVE SYNTHESIS OF β-XYLOFURANOSIDE
Authors: Murakami Masahiro , Mukaiyama Teruaki 
Published: July 2006

Abstract
β-Xylofuranosides are stereoselectively synthesized in good yields by the successive treatment of the thiocarbonate, derived from 3,5-di-O-benzyl-d-xylofuranose, with methyl fluorosulfonate and hydroxy compounds in the presence of cesium fluoride.
ACCELERATION OF SINTERING BY FORCED REDOX CYCLE
Authors: Komai Shinichi , Hattori Tadashi , Miyamoto Akira , Murakami Yuichi 
Published: July 2006

Abstract
The effect of redox atmosphere on the sintering of CuO/SiO2 catalyst was investigated. The sintering was accelerated, when the catalyst was used in catalytic oxidation of ethylene. Further acceleration was observed in the periodic pulse reaction. Redox cycle, especiaaly, forced redox cycle may accelerate the sintering.
REGIOSELECTIVE SYNTHESIS OF 3-ALKENYLSILANES AND 3-ALKENYLSTANNANES BY SILICON- AND TIN-DIRECTED ELIMINATION FROM γ-SILYL AND γ-STANNYL SUBSTITUTED SULFOXIDES AND SULFILIMINES1)
Authors: Hosomi Akira , Inaba Masahiro , Sakurai Hideki 
Published: July 2006

Abstract
3-Alkenylsilanes and 3-alkenylstannanes are conveniently prepared by the silicon- and tin-directed regioselective elimination of sulfenic acid and sulfenamide from γ-silyl and γ-stannyl substituted sulfoxides and sulfilimines.
TOTAL SYNTHESIS OF (±)-AKLAVINONE VIA BIOMIMETIC ROUTE. APPLICATION OF AN EFFICIENT “ZIPPER” REACTION—STEREOCONTROLLED ONE-STEP BICYCLO-CYCLIZATION
Authors: Maruyama Kazuhiro , Uno Hidemitsu , Naruta Yoshinori 
Published: July 2006

Abstract
(±)-Aklavinone (1) was synthesized from tricarbonylnaphthalene derivative 6 by application of an efficient “zipper” reaction in a good yield. Using Kryptofix 222 (4,7,13,16,21,24-hexaoxa-1,10-diazabicyclo [8.8.8]hexacosane) in the key process of the reaction we attained a stereocontrolled one-step bicyclo-cyclization.
MÖSSBAUER STUDIES OF BRIDGED FERROCENOPHANE DERIVATIVE’S POLYIODIDES
Authors: Watanabe Masanobu , Sato Kumiko , Motoyama Izumi , Sano Hirotoshi 
Published: July 2006

Abstract
[2]Ferrocenophanes, the ring tilted ferrocene derivatives, were oxidized with iodine in benzene and studied by means of Mössbauer spectroscopy. The quadrupole splitting value of the compounds is found to be 3.70 mms−1 at 78 K, which is one of the largest found in ferrocene derivatives, suggesting the presence of a strong direct interaction between iron atoms and iodine atoms. The results were compared with [3] and [4] ferrocenophane’s polyiodides.
EFFICIENT ASYMMETRIC INDUCTION VIA COORDINATION OF CHIRAL DIAMINE TO TIN(II) ENOLATE: A HIGHLY ENANTIOSELECTIVE SYNTHESIS OF 2-SUBSTITUTED MALATES
Authors: Stevens Rodney W , Mukaiyama Teruaki 
Published: July 2006

Abstract
In the presence of chiral diamine, (2S)-1-methyl-2-[(N-1-naphthylamino)methyl]pyrrolidine, the tin(II) enolate of 3-acetylthiazolidine-2-thione reacts with various α-ketoesters to afford the corresponding aldol-type products, generally, in greater than 95% enantiomeric excess.
METAL DEPOSITS ON Ni–Mo CATALYST USED FOR COAL LIQUEFACTION
Authors: Shimada Hiromichi , Sato Toshio , Kurita Minoru , Yoshimura Yuji , Kobayashi Yoshinori , Nishijima Akio 
Published: July 2006

Abstract
The characterization of Nio–MoO3–Al2O3 catalyst used for coal liquefaction was performed using some spectrometers. Behaviors of metal elements deposited on the catalyst, such as Fe, Ti, Ca, and Na, were clarified in this work.
SYNTHESIS OF A NEW COPPER ANTIMONY OXIDE, Cu9Sb4O19, BY SOLID STATE REACTION BETWEEN CuO AND CuSb2O6 UNDER HIGH PRESSURE
Authors: Shimada Shiro , Kodaira Kohei , Matsushita Toru 
Published: July 2006

Abstract
A new copper antimony oxide was synthesized by solid state reaction between CuO and CuSb2O6 in a 3.5:1 mole ratio at 1000 °C and 10 kbar and was found to have the composition Cu9Sb4O19 by X-Ray fluorescence analysis. The new oxide could be indexed on the basis of a body-centred cubic unit cell with ao=9.620 Å.
THE HIGHLY SELECTIVE REACTION OF LITHIUM DITHIOESTER ENOLATES WITH β-ALKENYL-β-PROPIOLACTONES: A SIMPLE METHOD FOR THE SYNTHESIS OF 6-(METHYLTHIO)THIOCARBONYL-(E)-3-ALKENOIC ACIDS
Authors: Fujisawa Tamotsu , Itoh Toshiyuki , Sato Toshio 
Published: July 2006

Abstract
Lithium dithioester enolates were found to react with β-alkenyl-β-propiolactones highly regio- and stereoselectively at the terminal vinyl carbon to give 6-(methylthio)thiocarbonyl-(E)-3-alkenoic acids, masked 1,7-dicarboxylic compounds.
PHOTOOXYGENATION OF SILACYCLOPENTADIENES: A NOVEL OXYGENATION PRODUCT, 2,4-DIOXA-3-SILABICYCLO[3.2.0]HEPT-6-ENE, AND ITS CYCLOREVERSION REACTIONS
Authors: Nakadaira Yasuhiro , Nomura Tamotsu , Kanouchi Seiichi , Sato Ryuji , Kabuto Chizuko , Sakurai Hideki 
Published: July 2006

Abstract
Photooxygenation of 1,1-dimethyl-2,3,4,5-tetraphenyl-1-silacyclopentadiene afforded 2,4-dioxa-3-silabicyc[3.2.0]hept-6-ene(III) together with dibenzoylstilbene. The former was converted to isodidesyl and didesyl by treatment on alumina. Valence bond isomerization of III to 1,3-dioxa-2-silacyclohepta-4,6-diene occurs both thermally and photochemically.
UNUSUALLY LARGE DESHIELDING OF 29Si IN 7-SILANORBORNADIENES AND RELATED COMPOUNDS
Authors: Sakurai Hideki , Nakadaira Yasuhiro , Koyama Takeshi , Sakaba Hiroyuki 
Published: July 2006

Abstract
Bridge silicon atoms in [2.2.1] bicyclic systems display unusually large deshielding in 29Si NMR. An explanation is given to account for the phenomena.
MECHANOCHEMICAL CHANGE OF TRISODIUM ISOHYPOPHOSPHATE TETRAHYDRATE BY GRINDING
Authors: Nariai Hiroyuki , Tsuhako Mitsutomo , Motooka Itaru 
Published: July 2006

Abstract
Mechanochemical change of trisodium isohypophosphate tetrahydrate (P3–O–P5), one of the lower phosphorus oxoacid salts, was investigated by analysis of species of phosphorus oxoanions. On grinding of P3–O-P5–salt, the P–O–P linkages were broken to give phosphonate and pyrophosphate. This shows that the decomposition of P3–O–P5-salt and the recombination of two phosphate radicals produced by grinding, occurred due to grinding.
THE CRYSTAL AND MOLECULAR STRUCTURE OF PYRIDINE-BORON TRIBROMIDE
Authors: Iijima Kinya , Oonishi Isao , Shibata Shuzo 
Published: July 2006

Abstract
The crystal and molecular structure of pyridine-boron tribromide C5H5N·BBr3 has been determined by an X-ray diffraction method. The unit cell is monoclinic with a=9.396(3) Å, b=15.176(7) Å, c=6.558(2) Å, β=101.85(3)°, and Z=4. The space group is P21/a. Pyridine is bound to boron tribromide via nitrogen atom so that the atomic arrangement around the boron atom is tetrahedral with N–B=1.59(2) Å and B–Br=1.99(2) Å.
NEGATIVE ION CHEMICAL IONIZATION MASS SPECTRA OF POLYCYCLIC AROMATIC HYDROCARBONS
Authors: Iida Yoshio , Daishima Shigeki 
Published: July 2006

Abstract
Negative ion chemical ionization mass spectra were evaluated for 21 polycyclic aromatic hydrocarbons. The spectra exhibited some peculiar peaks corresponding to (M-H)−, M\ewdot and MH−. These ions were found to be useful to identify and detect such polycyclic aromatic hydrocarbons and also to distinguish the isomers.
THE ENHANCEMENT OF ACID STRENGTH AND CATALYTIC ACTIVITY OF SnO2 BY THE ADDITION OF SULFATE ION
Authors: Wang Gong-Wei , Hattori Hideshi , Tanabe Kozo 
Published: July 2006

Abstract
The addition of about 3 wt% of sulfate ion to SnO2 caused the enhancement in the acid strength from H0=+3.3 to −8.2. The catalytic activity of SnO2+SO42− for the isomerization of cyclopropane at 100°C was found to be higher than 100 times that of simple SnO2 for the same reaction at 300°C. The effect of sulfate ion was remarkable also for the dehydration of 2-butanol.
SYNTHESIS OF IMIDAZOLE DERIVATIVES FROM α-HALOOXIMES AND AMIDINES BY USE OF IRON CARBONYLS
Authors: Nakanishi Saburo , Nantaku Junji , Otsuji Yoshio 
Published: July 2006

Abstract
The reaction of α-halooximes with amidines in the presence of iron carbonyls gives imidazole derivatives in good yields. This reaction occurs via deoxygenation of 4H-1,2,5-oxadiazines by iron carbonyls.
REACTION OF TRIMETHYLSILYL ENOL ETHERS WITH ISOQUINOLINIUM SALTS. A FACILE SYNTHESIS OF ETHYL 1-(2-OXOALKYL)-1,2-DIHYDROISOQUINOLINE-2-CARBOXYLATES AND THEIR CYCLIZATION
Authors: Wada Makoto , Nakatani Masayuki , Akiba Kin-ya 
Published: July 2006

Abstract
An efficient method is described for the synthesis of ethyl 1-(2-oxoalkyl)-1,2-dihydroisoquinoline-2-carboxylates by C–C bond formation between 2-ethoxycarbonylisoquinolinium chloride and trimethylsilyl enol ethers. The products were treated with a few bases to afford the corresponding pyrido [2,1-a] isoquinoline derivatives.
FAR-INFRARED SPECTRA OF AsF5 DOPED (CH)X
Authors: Tanaka Masashi , Fujimoto Hitoshi , Kamiya Kohji , Tanaka Jiro 
Published: July 2006

Abstract
Far-infrared spectra were measured with the AsF5 doped polyacetylene films in order to understand the electrical conduction mechanism. From the reflection data, the mechanism of the insulator-metal transition is discussed. That is, the intermediately doped film consists of small metallic particles and the highest doped film becomes the homogeneous metal, while the soliton model may be supported for the light doping.
REACTIONS OF ALLYLSILANES WITH α-CHLORO ETHERS CATALYZED BY IODOTRIMETHYLSILANE OR TRIMETHYLSILYL TRIFLUOROMETHANESULFONATE. SYNTHESIS OF HOMOALLYL ETHERS
Authors: Sakurai Hideki , Sakata Yasuyuki , Hosomi Akira 
Published: July 2006

Abstract
Iodotrimethylsilane and trimethylsilyl triflate activate selectively the C–Cl bond rather than the C–O bond of α-chloro ethers and catalyze the allylation with allylsilanes to give the corresponding homoallyl ethers effectively in good yield.
RADIATION CHEMISTRY OF DNA COMPONENTS. FORMATION OF THE 8,5′-CYCLO-2′,5′-DIDEOXYGUANOSINE BY GAMMA IRRADIATION OF DEAERATED AQUEOUS SOLUTIONS OF 2′-DEOXYGUANOSINE AND ITS 5′-MONOPHOSPHATE ESTER
Authors: Berger M , Cadet J 
Published: July 2006

Abstract
8,5′-cyclo-2′,5′-dideoxyguanosine was shown to be produced by gamma irradiation of deaerated aqueous solutions of 2′-deoxyguanosine and 2′-deoxyguanosine-5′-monophosphate, subsequent to initial hydrogen abstraction at the osidic carbon C(4′). Structure assignment was made on the basis of UV, 1H and 13C NMR, mass spectrometry analyses, and confirmed by an independent synthesis.
DIPHOSPHORUS TETRAIODIDE AS A NEW MILD CONDENSING AGENT FOR THE SYNTHESIS OF AMIDES
Authors: Suzuki Hitomi , Tsuji Junko , Hiroi Yoshio , Sato Naofumi , Osuka Atsuhiro 
Published: July 2006

Abstract
In the presence of diphosphorus tetraiodide, a variety of weak carboxylic acids readily react with amines to form the corresponding amides in high yields.
PHOTOOXYGENATION OF 1,2-DIARYLCYCLOPROPANES: FORMATION OF 3,5-DIARYL-1,2-DIOXOLANES VIA PHOTOINDUCED ELECTRON TRANSFER
Authors: Mizuno Kazuhiko , Kamiyama Nobuhiro , Otsuji Yoshio 
Published: July 2006

Abstract
The photooxygenation of electron-rich 1,2-diarylcyclopropanes such as 1,2-bis(4-methoxyphenyl)cyclopropane and 1-(4-methoxyphenyl)-2-phenylcyclopropane in the presence of 9,10-dicyanoanthracene(DCA) as a sensitizer in acetonitrile affords trans- and cis-3,5-diaryl-1,2-dioxolanes in high yields. This photooxygenation is initiated by the electron transfer from 1,2-diarylcyclopropanes to the excited singlet DCA, involving the cation radical of cyclopropanes as a key intermediate.
LOW TEMPERATURE HEAT CAPACITIES OF 1,1′-BIPHENYL AND 1,1′-BIPHENYL-d10
Authors: Atake Tooru , Saito Kazuya , Chihara Hideaki 
Published: July 2006

Abstract
Heat capacities of 1,1′-biphenyl-d10 were measured between 3 and 300 K and phase transitions were located at 20.2 and 36.8 K with entropies of transition, 0.009 and 0.128 J·K−1·mol−1, respectively. Remeasurements of heat capacities of 1,1′-biphenyl-h10 below 20 K showed that an anomaly at 11 K previously reported was a false one which probably was due to a defect in germanium thermometer scale. Revised thermodynamic properties relating to phase transitions are given.
SYNTHESIS OF 2,2,2-TRISUBSTITUTED 5-TRIFLU0R0METHYL-Δ4-1,3,4,2-OXADIAZAPHOSPHOLINES AND THEIR POTENTIALITY AS PRECURSORS OF TRIFLUOROACETONITRILE IMINES
Authors: Tanaka Kiyoshi , Igarashi Toh-ru , Mitsuhashi Keiryo 
Published: July 2006

Abstract
N′-Phenyl- and methyltrifluoroacetohydrazides react with phosphorus pentachloride to give the corresponding 2,2,2-trichloro-3-phenyl- and methyl-Δ4-1,3,4,2-oxadiazaphospholines, from which various 2,2,2-trisubstituted derivatives are further synthesized. Heating 3-phenyl-2,2,2-tris(p-tolyloxy) analog with an excess of styrene affords 1,5-diphenyl-3-trifluoromethyl-2-pyrazoline, which indicates that the phospholine behaves as a precursor of trifluoroacetonitrile phenylimine.
RING CLEAVAGE REACTIONS OF SUBSTITUTED 2-ISOXAZOLINES BY PENTACARBONYLIRON UNDER ULTRAVIOLET IRRADIATION
Authors: Nitta Makoto , Kobayashi Tomoshige 
Published: July 2006

Abstract
The photoirradiation of 3,5-disubstituted 2-isoxazolines and Fe(CO)5 in MeOH causes the N–O and C4–C5 bond cleavage to give two fragments of aldehydes and ketones, while that of 2-isoxazolines having no substituent at 5-position gives additional β-hydroxy- and β-methoxyketones.
COMPLETE DIASTEREOFACE SELECTION IN THE LEWIS ACID-MEDIATED ALDOL REACTIONS OF C,O-DISILYLATED γ-BUTYROLACTONE ENOLATES WITH ALDEHYDES
Authors: Yamamoto Keiji , Tomo Yoichi 
Published: July 2006

Abstract
Titanium(IV) chloride-mediated reaction of 4,5-dihydro-5-methyl-2-(trimethylsiloxy)-3-(trimethylsilyl)furan (1b) with acetaldehyde gave diastereomerically pure (3R*,5R*,1′S*)-4,5-dihydro-3-{1′-(hydroxyethyl)}-5-methyl-3-(trimethylsilyl)-2(3H)furanone (2b), exhibiting excellent diastereoface selection as well as threo diastereoselection. An anolog with 4-methyl substituent (1c) behaves similarly.
EVIDENCE FOR “PSEUDO-LIQUID PHASE” IN THE DEHYDRATION OF ISOPROPANOL OVER H3PW12O40
Authors: Okuhara Toshio , Hashimoto Tomihito , Misono Makoto , Yoneda Yukio , Niiyama Hiroo , Saito Yoshinori , Echigoya Etsuro 
Published: July 2006

Abstract
Transient response method using isotopically labeled isopropanol was applied to confirm the “pseudo-liquid phase” behavior of the dehydration of isopropanol over H3PW12O40. Results were treated by moment analysis. Under the stationary state of catalytic reaction at 80–90°C, a large amount of isopropanol was present in the bulk and the absorption–desorption process of isopropanol in the whole bulk was much more rapid than its dehydration to propene, demonstrating the “pseudo-liquid phase” behavior.
PHOTOCATALYTIC HYDROGEN EVOLUTION FROM AN AQUEOUS METHANOL SOLUTION OVER CERAMICS-ELECTROCATALYST/TiO2
Authors: Oosawa Yoshinao 
Published: July 2006

Abstract
The activities of TiO2 powders loaded with various kinds of transition metal borides, nitrides, phosphide, carbides for the photocatalytic hydrogen evolution from an aqueous methanol solution have been examined. It has been found that WC/TiO2 has the highest activity among them going up one fourth of that of platinum black/TiO2.
DIASTEREOSELECTION IN A DIRECTED CROSSED ALDOL REACTION BETWEEN TWO POLYOXYGENATED KETONES EMPLOYING TIN(II) ENOLATES. A FACILE STEREOSELECTIVE SYNTHESIS OF ETHYL 2-C-METHYL-Dl-LYXOFURANOSIDE
Authors: Stevens Rodney W , Mukaiyama Teruaki 
Published: July 2006

Abstract
Tin(II) enolates of 1,3-dihydroxy-2-propanone derivatives react with a second ketone, methyl pyruvate, under mild conditions to afford the corresponding anti-crossed aldol products in moderate to excellent yields. Facile elaboration to the branched-chain sugar, ethyl 2-C-methyl-Dl-lyxofuranoside, was demonstrated.
CRYSTAL AND MOLECULAR STRUCTURE OF PIQUEROL A A POTENT GROWTH-INHIBITING FACTOR
Authors: Soriano-Garcia Manuel , Jimenez Manuel , Gonzalez M , Hernandez A , Schatz M , Campana C 
Published: July 2006

Abstract
Crystal and molecular structure of piquerol A isolated from Piqueria trinervia Cav was determined. The X-ray study confirms that in the solid-state the structure of piquerol A is similar to that inferred from NMR spectra. The isopropenyl group is planar and makes approximately 38.4° with the mean plane for the six-membered ring. The two hydroxyl groups are above the plane through the six-membered ring, while the C4 and H5 are below this plane.
SURFACE TRIIRON CARBONYLS SUPPORTED BY THE REACTIONS OF Fe3(CO)12 WITH γ-Al2O3 OR SiO2
Authors: Iwasawa Yasuhiro , Yamada Makoto , Ogasawara Sadao , Sato Yoshiharu , Kuroda Haruo 
Published: July 2006

Abstract
It is shown by means of Extended X-ray Absorption Fine Structure (EXAFS), IR and UV spectroscopies and by temperature programmed decomposition (TPDE) and gas phase analyses that Fe3(CO)12 reacted with the surface OH group of γ-Al2O3 to give the surface complex, Fe3(CO)10(H)(OAl(Remark: Graphics omitted.)), while Fe3(CO)12 was weakly supported on SiO2 retaining its original structure and chemical nature.
THE ROLE OF VITAMIN C AS AN ANTIOXIDANT
Authors: Niki Etsuo , Saito Tadatoshi , Kamiya Yoshio 
Published: July 2006

Abstract
Ascorbic acid (vitamin C) was found to act as a radical scavenger and suppress the oxidation of methyl linoleate in homogeneous alcohol solution in the presence of radical initiator. Furthermore, vitamin C showed a synergistic effect when used with vitamin E.
SYNTHESES OF A NEW CLASS OF DYES-COUPLING REACTIONS OF DIAZONIUM SALTS WITH 2- AND 3-ALKOXY-1,6-METHANO-[10]-ANNULENES
Authors: Neidlein Richard , Radke Christoph Martin , Gottfried Reiner 
Published: July 2006

Abstract
2- and 3-Alkoxy-1,6-methano-[10]-annulenes were coupled with aryldiazonium salts yielding the corresponding quinone hydrazones as cycloheptatriene derivatives. Analytical data are discussed.
THE STRUCTURE OF HALOGEN ADDUCTS OF SOME SELENIDES AND A TELLURIDE IN SOLUTION STUDIED BY 1H AND 13C NMR SPECTROSCOPY. EVIDENCE FOR THE FORMATION OF A MOLECULAR COMPLEX OF SELENOXANTHONE WITH BROMINE
Authors: Nakanishi Waro , Yamamoto Yasuhiro , Kusuyama Yoshiaki , Ikeda Yoshitsugu , Iwamura Hiizu 
Published: July 2006

Abstract
1H and 13C NMR chemical shifts of dimethyl selenide, selenoanisole, diphenyl selenide, phenoxyselenine, and phenoxytellurine and their chlorine, bromine, and iodine adducts have been measured to disclose the structure of the adducts in solution. The bromine adduct of selenoxanthone was found to have the structure of a molecular complex. The relative stability of selenuranes is discussed.
LABORATORY SCALE 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 constructing an apparatus for repeated operations of chemical reactions of the whole cycle and by the circulation of reactants through purely thermochemical processes below 1000°C. Electric furnaces and quartz glass reactors were used. Sixteen times of cycle operations were performed in 16 h with production rates of 0.3 liter H2/h and 0.15 liter O2/h.
FORMATION AND CONVERSION OF AN EXTRAORDINARY SPECIES OF MOLYBDOPHOSPHATE IN AQUEOUS ACETONITRILE SOLUTIONS
Authors: Hori Toshitaka , Fujinaga Taitiro 
Published: July 2006

Abstract
The existence of two species of molybdophosphate has been recognized in aqueous acetonitrile solutions. The one, which was called here as “extraordinary” molybdophosphate, forms quite rapidly and exhibits a bright yellow colour, but is unstable and undergoes a spontaneous conversion to the other. The latter complex would be of dodecamolybdophosphate in Keggin’s structure.
PROTON DRIVEN ACTIVE TRANSPORT OF ALKALI METAL CATIONS BY USING ALKYL MONOAZA CROWN ETHER DERIVATIVES
Authors: Matsushima Kenji , Kobayashi Hirofumi , Nakatsuji Yohji , Okahara Mitsuo 
Published: July 2006

Abstract
Octyl monoaza 18-crown-6 and the corresponding nitrogen lariat ethers were discolsed to be good carriers for the active transport of alkali metal cations. The transport ability is well corresponding to the complexing ability and the transport system has a characteristic of using the large change in the complexing ability between the acidic and alkaline phases.
EFFICIENT HYDROGEN PRODUCTION FROM WATER BY VISIBLE LIGHT EXCITATION OF FLUORESCEIN-TYPE DYES IN THE PRESENCE OF A REDOX CATALYST AND A REDUCING AGENT
Authors: Hashimoto Kazuhito , Kawai Tomoji , Sakata Tadayoshi 
Published: July 2006

Abstract
A hydrogen production system for visible light without an electron relay, efficient in the high pH region, is constructed with some fluorescein derivatives in the presence of a redox catalyst and a sacrificial reducing agent.
SIGNAL RECEPTIVE CAPSULE MEMBRANE. Ca2+-INDUCED PERMEABILITY CONTROL OF LARGE NYLON CAPSULE COATED WITH SYNTHETIC BILAYER MEMBRANE
Authors: Okahata Yoshio , Lim Han-jin , Nakamura Gen-ichi 
Published: July 2006

Abstract
Nylon ultrathin capsules coated with sodium didodecyl phosphate bilayer membrane were prepared. Permeation of NaCl from the inner aqueous phase of the coated capsule was reversibly increased by treating with Ca2+, and decreased to the original rate by washing with EDTA from outside.
ENANTIOSELECTIVE ADDITION OF DIETHYLZINC TO ARYLALDEHYDES CATALYZED BY CHIRAL COBALT(II) AND PALLADIUM(II) COMPLEXES
Authors: Oguni Nobuki , Omi Takao , Yamamoto Yoshihiro , Nakamura Akira 
Published: July 2006

Abstract
The reaction of diethylzinc with arylaldehydes catalyzed by Co(α-cqdH)2 and Pd(α-cqdH)2 in toluene at room temperature gave optically active alcohols almost quantitatively in 40–60% ee.
PHOTOLYSIS AND PYROLYSIS OF POLYSILYLATED DIAZOMETHANES. EFFECTIVE MIGRATING TENDENCY OF TRIMETHYLSILYL GROUP TO A CARBENE CENTER
Authors: Sekiguchi Akira , Ando Wataru 
Published: July 2006

Abstract
Photolysis and pyrolysis of polysilylated diazomethanes were investigated, and a selective migration of trimethylsilyl group to a carbene center was observed.
LANTHANOID CHLORIDE COMPLEXES WITH POLYETHYLENE GLYCOLS AND GLYMES
Authors: Hirashima Yoshiyuki , Ito Kaoru , Shiokawa Jiro 
Published: July 2006

Abstract
Lanthanoid chlorides formed the 1:1 complexes with triethylene glycol, tetraethylene glycol, pentaethylene glycol, tetraglyme, and pentaglyme. All the complexes were deliquescent. The yield of the solid complex with tetraethylene glycol decreased with the increase of the atomic number of the lanthanoid.