bluuebunny/crossref_metadata_2025_split huggingface dataset:
VISIBLE LIGHT INDUCED ELECTRON TRANSFER REACTIONS OF METAL COMPLEXES. PRODUCTION OF HYDROGEN FROM WATER BY A Ru(bpy)32+–Fe4S4(SBzl)42− SYSTEM
Authors: Okuno Yohmei , Yonemitsu Osamu 
Published: July 2006

Abstract
Hydrogen is generated without addition of extra electron donor when aqueous solution of Ru(bpy)32+ and synthetic iron-sulfur complex, Fe4S4(SBzl)42−, is illuminated by a “sunlight lamp”. Result shows that the Fe–S chelate plays an important role, presumably as an electron carrier. Probable mechanism is also presented.
POLYMERIZATION OF ETHYL AND METHYL VINYL ETHERS CATALYZED BY IRON OXIDE TREATEI WITH SULFATE ION. SYNTHESIS OF STEREOSPECIFIC POLY. (METHYL VlNYL ETHER)
Authors: Hino Makoto , Arata Kazushi 
Published: July 2006

Abstract
A solid catalyst which was prepared by exposing Fe(OH)3, obtained by hydrolyzing Fe(NO3)3 or FeCl3 with ammonia, to l N H2SO4 and then calcining in air at 500°C was highly active for the title reaction at 0 –−20°C. This catalyst produced poly (methyl vinyl ether) with the crystalline structure.
INTRAMOLECULAR INTERACTION BETWEEN METHOXYL AND ACYLOXYMETHYL GROUPS IN TRIPTYCENE SYSTEMS
Authors: Izumi Giichi , Yamamoto Gaku , Oki Michinori 
Published: July 2006

Abstract
Populations of conformers of 9-(2-acyloxyethyl)-1,4-dimethoxytriptycene suggest that there is an attractive interaction between the acyloxymethyl and the methoxyl groups. The effects of the electronegativities of the acyl group upon the distribution of conformers and the relation between the interaction and SN2 reactions are discussed.
REACTIONS OF SILYL-SUBSTITUTED CARBANIONS WITH NITRONES
Authors: Tsuge Otohiko , Sone Kazuhiro , Urano Satoshi 
Published: July 2006

Abstract
The reaction of carbanions, prepared from 2-(trimethylsilylmethyl)pyridine or N,N-dimethyltrimethylsilylacetamide and lithium diisopropylamide in tetrahydrofuran, with α-aryl-N-phenylnitrones afforded a mixture of the corresponding (E)-alkene, azobenzene and azoxybenzene, respectively. On the other hand, the carbanions reacted with cyclic nitrones to give the corresponding aziridine and/or hydroxylamine derivatives as major products.
ASYMMETRIC REDUCTION OF SIMPLE ACHIRAL KETONES WITH LITHIUM ALUMINUM HYDRIDE PARTIALLY DECOMPOSED BY (−)-N-METHYLEPHEDRINE AND N-ETHYLANILINE
Authors: Terashima Shiro , Tanno Norihiko , Koga Kenji 
Published: July 2006

Abstract
The title asymmetric reduction was found to give the corresponding optically active alcohols in high optical(max. 90% ee) and chemical(max. 100%) yields.
HYPERFINE SPLITTING CONSTANTS OF BIS(2,6-DIMETHYLARYL) NITROXIDES
Authors: Suehiro Tadashi , Masuda Seiichi , Motoyama Nobuyuki , Kamimori Mariko , Yoshida Masayuki , Tokumaru Katsumi 
Published: July 2006

Abstract
Bis(2,6-dimethylaryl) nitroxides showed ESR spectra of complex hyperfine structures and the coupling constants of the ring and the methyl hydrogen atoms were determined by a simulation technique. The coupling constants of the 4-ring and the 4-methyl hydrogen atoms of the aryl group, ca. 1.1 gauss, suggest a fairly great degree of conjugation between the aryl and the nitroxide group.
IMPROVEMENT OF DETECTION LIMIT IN UHF PLASMA TORCH EMISSION SPECTROMETRY
Authors: Shimizu Tokuo , Arita Hirotaka , Sakai Kaoru 
Published: July 2006

Abstract
To improve the detection limits in UHF plasma torch emission spectrometry, the flowthrough pattern of the sheath gas pinching the UHF plasma torch was modified. The plasma torch was pinched by inserting spacers between the inner and the outer wall of a double quartz tube holding the plasma torch, to raise the net intensities of the spectral lines and to depress the background intensities.
A SUCCESSFUL PREPARATION OF 2-ARYL-2,3-DIHYDRO-2,3-IMINO-1,4-NAPHTHOQUINONES
Authors: Maruyama Kazuhiro , Ogawa Takuji 
Published: July 2006

Abstract
A new class of compounds, 2-aryl-2,3-dihydro-2,3-imino-1,4-naphthoquinones 3, was synthesized for the first time by heating 2-aryl-1,4-naphthoquinones with aryl azides. The yields were 30–50% when p-methoxyphenyl azide was used.
THE CATALYTIC EFFECT OF CARBIDE FORMATION DURING FISCHER–TROPSCH SYNTHESIS
Authors: Matsumoto Hiroshige 
Published: July 2006

Abstract
Fischer–Tropsch reaction on a fused iron catalyst has been investigated in both isothermal (250 °C) and temperature programmed (25–800 °C) experiments. With the increase in weight of the catalyst during the reaction, the period of catalyst activation decreased and the rate of hydrocarbon formation increased proportionally. Carburization during the reaction was observed to weaken the interaction between CO and Fe and to increase the amount of more weakly held carbon species which are considered to be available for the catalysis.
TERNARY INTERCALATION COMPOUND OF GRAPHITE WITH ALUMINUM FLUORIDE AND FLUORINE
Authors: Nakajima Tsuyoshi , Kawaguchi Masayuki , Watanabe Nobuatsu 
Published: July 2006

Abstract
Ternary intercalation compound of graphite with AlF3 and F2, CxF(AlF3)y was prepared under fluorine atmosphere at temperatures of 20–400 °C. Typical 1st stage compound has a composition of C6F(AlF3)0.15 with repeat distance 9.40 Å. Rapid progress in the reaction led to the formation of graphite fluoride, (C2F)n.
A NEW SYNTHESIS OF KETONES FROM 1,2-DIMETHOXYETHENYLLITHIUM, ORGANOBORANES, AND ALKYL FLUOROSULFONATES
Authors: Yogo Toshinobu , Koshino Junji , Suzuki Akira 
Published: July 2006

Abstract
The reaction of alkyl fluorosulfonates with lithium 1,2-dimethoxyethenyltrialkylborates readily prepared from organoboranes gives corresponding ketones in good yields.
DEUTERIUM ISOTOPE EFFECT IN 1H CHEMICAL SHIFT OF BENZENE-d1
Authors: Yonemitsu Tadashi , Kubo Kiyotaka 
Published: July 2006

Abstract
90 MHz 1H-NMR spectrum of liquid benzene-d1 has been measured and completely analysed as an AB2C2X (X=D,I=1) system. The deuterium isotopic shifts relative to internal benzene, ΔA=−1.4 ppb, ΔB=−1.3 ppb and ΔC=+0.3 ppb, have been determined.
A CONVENIENT SYNTHESIS OF PHENYL SELENOCYANATE
Authors: Tomoda Shuji , Takeuchi Yoshito , Nomura Yujiro 
Published: July 2006

Abstract
Treatment of benzeneselenenyl chloride with trimethylsilyl cyanide in various organic solvents provided phenyl selenocyanate in virtually quantitative yield. The reaction presents a very simple preparation of the useful selenenylation agent.
PREPARATION OF POLY(2,4-THIENYLENE) AND COMPARISON OF ITS OPTICAL AND ELECTRICAL PROPERTIES WITH THOSE OF POLY(2,5-THIENYLENE)
Authors: Yamamoto Takakazu , Sanechika Kenichi , Yamamoto Akio 
Published: July 2006

Abstract
Poly(2,4-thienylene) is prepared by Ni-catalyzed dehalogenation polymerization of 2,4-dibromothiophene with Mg. Comparison of chemical and physical properties of poly(2,4-thienylene) with those of Poly(2,5-thienylene) indicates that π-electrons of the latter polymer are delocalized along the polymer chain, whereas those of the former polymer are not. Poly(2,4-thienylene) is converted into a semiconductor by doping with SO3.
FOURIER TRANSFORM INFRARED PHOTOACOUSTIC SPECTROSCOPY OF SOLID SAMPLES
Authors: Teramae Norio , Hiroguchi Masayuki , Tanaka Shigeyuki 
Published: July 2006

Abstract
The Helmholtz resonance effect of the photoacoustic cell and the effect of the thermal properties of samples in the Fourier transform infrared photoacoustic spectroscopy have been discussed. Infrared photoacoustic spectra of several kinds of polymers have been measured without troublesome sample preparations.
7-(β-d-RIBOFURANOSYL)IMIDAZO[1,2-c]PYRROLO[2,3-d]PYRIMIDINE (= 1,N6-ETHENO-7-DEAZAADENOSINE). PROTONATION, QUATERNIZATION, AND FLUORESCENCE PROPERTIES
Authors: Inoue Yasuo , Kuramochi Takao , Imakubo Keiichi 
Published: July 2006

Abstract
Tendency of protonated 1,N6-ethenoadenosine to undergo deactivation of the fluorescence at 77 K is greatly decreased by the replacement of an N-1 nitrogen atom by a CH group. This phenomenon is discussed with reference to intramolecular proton transfer between N-1 and N-9 of the protonated 1,N6-ethenoadenosine in the excited state even at 77 K.
A COMPUTER PROGRAM FOR THE SIMULTANEOUS DETERMINATION OF THE FIRST-AND SECOND-ION-ASSOCIATION CONSTANTS. AN APPLICATION TO THE SYSTEM ACETYLACETONATOBIS(ETHYLENEDIAMINE)COBALT(III) AND CHLORIDE IONS IN DIMETHYLSULFOXIDE
Authors: Morimoto Yukiyoshi , Nakazawa Hiroshi , Sakaguchi Ushio , Yoneda Hayami 
Published: July 2006

Abstract
A computer program has been developed for the simultaneous determination of the first- and second-ion-association constants from spectroscopic(NMR, UV, or CD) or conductance measurements, and applied to the system, acetylacetonatobis(ethylenediamine)cobalt(III) and chloride ions in dimethylsulfoxide.
SELECTIVE FORMATION OF STYRENE AND HYDROGEN FROM ETHYLBENZENE OVER MoO3/MgO CATALYSTS
Authors: Imanaka Toshinobu , Katoh Yukihiro , Okamoto Yasuaki , Teranishi Shiichiro 
Published: July 2006

Abstract
The catalytic conversion of ethylbenzene into styrene and hydrogen has been studied over various supported molybdenum catalysts. MoO3/MgO catalysts exhibited remarkably high activity, selectivity, and resistivity against sulfur species even in the absence of additives. The relationships between the surface structure and the catalytic activity of the MoO3/MgO catalysts were also studied by XPS.
A PHENOLATE-BRIDGED BINUCLEAR COPPER(II) COMPLEX WITH SQUARE PYRAMIDAL STRUCTURE
Authors: Sakurai Takeshi , Narisako Katsuichiro , Nakahara Akitsugu 
Published: July 2006

Abstract
Two molecules of the copper(II) complex chelated with a tripod-like ligand, tris(2-benz[d]imidazolylmethyl)amine are bridged by p-chlorophenolate in acetone to form a binuclear copper(II) complex, in which two copper(II)’s varied from trigonal bipyramidal structure to square pyramidal one, losing anisotropic feature on ESR spectrum and exhibiting lowered magnetic moment of 1.7 B. M. (B. M.=9.274×10−24 A m2)
A NOVEL SYNTHESIS OF HALOKETENIMINE
Authors: Hirao Toshikazu , Hayashi Ken-ichiro , Motoyoshiya Jiro , Ohshiro Yoshiki , Agawa Toshio 
Published: July 2006

Abstract
Haloketenimines are prepared by treatment of 2,2-dihaloaziridines with triethylamine in acetonitrile.
DEHYDROGENATION OF ETHANOL OVER ZSM-5 TYPE ZEOLITES
Authors: Matsumura Yasuyuki , Hashimoto Keiji , Watanabe Shoji , Yoshida Satohiro 
Published: July 2006

Abstract
Decomposition of ethanol over ZSM-5 zeolite was investigated by use of a pulse microcatalytic reactor technique. Acetaldehyde and ethylene were formed over ZSM-5 and sodium enriched ZSM-5 was much more effective for the dehydrogenation than protonated one.
SYNTHESIS OF RUBY FILMS BY ANODIC OXIDATION OF ALUMINUM
Authors: Mita Ikuo , Yamada Midori 
Published: July 2006

Abstract
An alpha alumina film incorporated with chromium oxide was prepared on aluminum by two-step anodic oxidation. Aluminum was anodized in sulfuric acid and adsorbed chromate ions into the pores of the film. A chromate ions adsorbed alumina film was reanodized in bisulfate melt. The film thus prepared has optical properties similar to a ruby synthesized by the Verneuil method.
PHOTOINDUCED [2+2] CYCLOADDITION BETWEEN ARYL VINYL ETHER AND ALKYL VINYL ETHER VIA ELECTRON TRANSFER
Authors: Mizuno Kazuhiko , Ueda Hiroshi , Otsuji Yoshio 
Published: July 2006

Abstract
The [2+2] photocycloaddition between aryl vinyl ethers and alkyl vinyl ethers occurs upon irradiation of acetonitrile solutions in the presence of an electron acceptor such as 1,4-dicyanobenzene, giving predominantly cis head-to-head cycloadducts. The mechanistic features of this photoreaction are described.
KETENE-ANTHRACENE ADDUCT, A PRECURSOR OF SUBSTITUTED ACETYLENES
Authors: Tarnchompoo Bongkoch , Thebtaranonth Yodhathai , Utamapanya Suchada , Kasemsri Prapani 
Published: July 2006

Abstract
The ketene-anthracene adduct 1 serves as a good precursor in the synthesis of substituted acetylenes, in which the key step is the retro Diels–Alder reaction.
SELECTIVE METHANOL FORMATION FROM ATMOSPHERIC CO AND H2 OVER NOVEL PALLADIUM CATALYSTS
Authors: Kikuzono Yasuo , Kagami Setsuko , Naito Shuichi , Onishi Takaharu , Tamaru Kenzi 
Published: July 2006

Abstract
Novel palladium catalysts prepared from M2PdCl4(M=alkali metals) type complexes have been studied, which produce methanol selectively from CO–H2 mixture below atmospheric pressure.
AN INFRARED STUDY OF THE REDUCTION OF TRIPOTASSIUM DODECAMOLYBDOPHOSPHATE WITH HYDROGEN
Authors: Eguchi Koichi , Toyozawa Yuji , Furuta Keiichi , Yamazoe Noboru , Seiyama Tetsuro 
Published: July 2006

Abstract
Quantitative ir spectroscopic studies showed that the reduction of K3PMo12O40 with H2 in the early stage proceeded by consuming two bridging oxygens per Keggin anion. The process was accompanied by the stoichiometric formation of Mo5+ according to the XPS measurements. It was suggested that terminal oxygens were removed after two oxygens per Keggin anion were taken off.
THE STRUCTURES OF SEMBURIN AND ISOSEMBURIN, 2,8-DIOXABICYCLO[3.3.1] NONANES ISOLATED FROM THE VOLATILE OIL OF SWEBTIA JAPONICA MAKINO
Authors: Sakai Tsutomu , Naoki Hideo , Takaki Kazutoshi , Kameoka Hiromu 
Published: July 2006

Abstract
The structures of semburin and isosemburin isolated from the volatile oil of Swertia japonica Makino have been determined as 1 and 3, respectively. It is the first time that the 2,8-dioxabicyclo[3.3.1] nonane skeleton has been encountered in natural products.
TETRAKIS-SULFOXIDES AS PHASE TRANSFER CATALYSTS
Authors: Fujihara Hisashi , Imaoka Koji , Furukawa Naomichi , Oae Shigeru 
Published: July 2006

Abstract
Tetrakis(alkyl-sulfinylmethyl)methanes serve as highly efficient phase transfer catalysts in SN2 type displacement reactions of n-octyl bromide with a few nucleophiles.
THE MECHANISM OF THE REACTION OF ARYLOXYTRIMETHYLSTANNANE WITH METHANESULFONYL CHLORIDE
Authors: Kozuka Seizi , Yamaguchi Shigeru , Tagaki Waichiro 
Published: July 2006

Abstract
A kinetic study has been conducted for the reaction of aryloxytrimethylstannane with methanesulfonyl chloride. Substituent effect was found to be dependent on the solvent and obscure solvent effect was observed. A mechanism has been suggested involving nearly concerted four-center transition state.
SYNTHESIS OF Ng-STREPTOLIDYL GULOSAMINIDE — A NEW EVIDENCE FOR THE PROPOSED STRUCTURE OF ANTIBIOTIC STREPTOTHRICIN
Authors: Kusumoto Shoichi , Imaoka Susumu , Kambayashi Yoshikazu , Yoshizawa Kumiko , Shiba Tetsuo 
Published: July 2006

Abstract
The title compound was synthesized and identified with a partial hydrolysis product from natural streptothricin. This work confirmed the presence of the proposed glycosyl guanidine structure in the antibiotic and established a method for its preparation.
THE CRYSTAL STRUCTURE OF GERSTLEYITE Na2(Sb,As)8S13·2H2O: THE FIRST SULFOSALT MINERAL OF SODIUM
Authors: Nakai Izumi , Appleman Daniel E 
Published: July 2006

Abstract
Gerstleyite is monoclinic, a=9.911(8), b=23.05(2), c=7.097(8) Å, β=127.85(7) °, space group Cm, and Z=2. All Sb atoms have essentially 3-fold coordination, forming trigonal SbS3 pyramids. The SbS3 pyramids share corners to form a complex chain parallel to [100]. Na–S bonds cross-link the chains into a slab structure parallel to (010). Water molecules coordinate only to Na atoms.
A FACILE PREPARATION OF THIOL ESTERS FROM CARBOXYLIC ACIDS AND THIOLS
Authors: Kim Sunggak , Yang Sungbong 
Published: July 2006

Abstract
Thiol esters can be conveniently prepared by the reaction of carboxylic acids with thiols and 1-fluoro-2,4,6-trinitrobenzene in the presence of 4-dimethylaminopyridine. The thiol ester formation is found to be very effective for simple carboxylic acids.
REDUCTION OF 1-(3,5-DI-TERT-BUTYL-2-HYDROXYPHENYL)PYRIDINIUM HALIDES WITH RANEY Ni–Al ALLOY IN AN ALKALINE SOLUTION AFFORDING 2,4-DI-TERT-BUTYLBENZOXAZOLO[3,2-a]-5a,6,7,8,9,10-HEXAHYDROPYRIDINES
Authors: Fukata Gouki , Itoh Takashi , Tashiro Masashi 
Published: July 2006

Abstract
Treatment of 1-(3,5-di-tert-butyl-2-hydroxyphenyl)pyridinium halides (1a–1c) with Raney Ni–Al alloy in an alkaline solution afforded the corresponding 2,4-di-tert-butylbenzoxazolo[3,2-a]-5a,6,7,8,9,10-hexahydropyridines (4a–4c). In the case of 1b, 2,4-di-tert-butylbenzoxazolo [3,2-a]-5a,6,7,10-tetrahydro-8-methylpyridine (5) was also obtained as a by-product.
ON THE STRUCTURE OF 2-CARBOXYPHENYL METHYL SELENOXIDE AND ITS SODIUM SALT IN SOLUTION STUDIED BY 1H, 13C, AND 77Se NMR SPECTROSCOPY
Authors: Nakanishi Waro , Matsumoto Sigekazu , Ikeda Yoshitsugu , Sugawara Tadashi , Kawada Yuzo , Iwamura Hiizu 
Published: July 2006

Abstract
1H, 13C, and 77Se NMR spectra of 2-carboxyphenyl methyl selenoxide, its sodium salt, and the related compounds have been measured to disclose their structures in solution. The results show that the carboxylic acid has the cyclic selenurane structure, while the salt is an acyclic selenoxide. The 77Se chemical shifts and 1J(77Se–13C) values are proposed to be particularly useful in distinguishing the two structures.
EFFICIENT TRANSFORMATION OF (Z)-2-BUTENE-l,4-DIOLS TO SUBSTITUTED FURANS WITH PYRIDINIUM CHLOROCHROMATE (PCC)
Authors: Nishiyama Hisao , Sasaki Masaharu , Itoh Kenji 
Published: July 2006

Abstract
(Z)-2-Butene-1,4-diols was were efficiently converted to the corresponding substituted furans by one step oxidation–dehydration process with pyridinium chlorochromate (PCC).
PREPARATION AND PROPERTIES OF A NOVEL COMPLEX OF THE [CoIIIP6]3+-TYPE, TRIS{1,2-BIS(DIMETHYLPHOSPHINO)ETHANE}COBALT(III) PERCHLORATE
Authors: Ohishi Tomoji , Kashiwabara Kazuo , Fujita Junnosuke 
Published: July 2006

Abstract
The [Co{(CH3)2PCH2CH2P(CH3)2}3](ClO4)3 complex was prepared from trans-[CoCl2{(CH3)2PCH2CH2P(CH3)2}2]ClO4 and the diphosphine ligand. The lemon yellow trisdiphosphine complex is rather unstable to air even in the solid state to turn gradually orange yellow.
EFFECT OF OXYGEN ON THE PHOTOSTATIONARY STATE COMPOSITION IN TRIPLET SENSITIZED CIS–TRANS ISOMERIZATION OF 1-ARYL-3,3-DIMETHYL-1-BUTENES. A CLASSIFICATION OF TRIPLET ENERGY SURFACES OF AROMATIC OLEFINS
Authors: Arai Tatsuo , Karatsu Takashi , Sakuragi Hirochika , Tokumaru Katsumi 
Published: July 2006

Abstract
The trans-isomer ratio of 1-p-biphenylyl-3,3-dimethyl-1-butene (BDMB) at the photostationary state in triplet sensitized isomerization increases with increasing concentration of oxygen and azulene. It is proposed to classify triplet energy surfaces of some aromatic olefins containing BDMB based on the variation of their photostationary isomer ratios with oxygen and/or azulene as triplet quenchers in their photoisomerization.
BIOMIMETIC REDUCTION OF SULFURIC ACID
Authors: Oae Shigeru , Togo Hideo 
Published: July 2006

Abstract
Inorganic sulfate was reduced by treatment with either arenesulfenyltriphenylphosphonium arenethiolate or iodotriphenylphosphonium iodide to triphenylphosphine sulfide via formation of hydrogen sulfide. The reaction of sulfate to sulfide is considered to proceed via the course which resembles the biological reaction path involved in the assimilatory metabolism of inorganic sulfate in microorganisms.
A NOVEL TYPE OF GLYCERIDES BEARING A METHACRYLIC ACID MOIETY FROM THE BROWN ALGA, SARGASSUM FULVELLUM
Authors: Kusumi Takenori , Ishitsuka Midori , Iwashita Takashi , Naoki Hideo , Konno Toshinori , Kakisawa Hiroshi 
Published: July 2006

Abstract
From S. fulvellum, a new type of glycerides bearing a methacrylic acid moiety were isolated, and the structures were determined to be 2-[3-eicosadi(and tetra)enoyloxy-2-hydroxypropanoxy)methylpropenoic acids.
1,3-O- TO C-ALKYL MIGRATION OF 1-ALKENYL ALKYL ACETALS CATALYZED BY BORON TRIFLUORIDE. A NOVEL CROSS ALDOL TYPE REACTION
Authors: Takahashi Mitsuru , Suzuki Hiroharu , Moro-Oka Yoshihiko , Ikawa Tsuneo 
Published: July 2006

Abstract
1,3-O- to C-alkyl migration of acyclic 1-alkenyl alkyl acetals catalyzed by BF3·Et2O gives selectively α-alkyl-β-alkoxyaldehydes.
NOVEL REACTIONS OF 1-(1-PYRROLIDINYL)ACENAPHTHYLENE WITH DIPHENYLCYCLOPROPENONE AND DIPHENYLCYCLOPROPENETHIONE
Authors: Tsuge Otohiko , Okita Shigeru , Noguchi Michihiko , Watanabe Haruyuki 
Published: July 2006

Abstract
An enamine, 1-(1-pyrrolidinyl)acenaphthylene, reacts with diphenylcyclopropenone to give δ-aminocyclopentenone derivative together with a trace amount of acecyclone. In the reaction of the enamine with diphenylcyclopropenethione, however, γ-aminocyclopentenethione derivative is formed as the major product accompanied by another 1:1 adduct which was tentatively assumed to be a benzothiophene derivative.
ADJUSTING THE HYDROGEN–CARBON MONOXIDE RATIO IN SYNTHESIS GAS BY POLYSTYRENE-COPPER ALUMINATE COMPLEX
Authors: Hirai Hidefumi , Komiyama Makoto , Hara Susumu 
Published: July 2006

Abstract
The molar ratio of hydrogen to carbon monoxide in synthesis gas, which has the initial molar ratio of 1.25 and is saturated with water, is adjusted to a desired value by the selective separation of carbon monoxide by the absorbent composed of polystyrene, cuprous chloride, aluminum chloride, and toluene.
OLIGOMERIZATION OF CIS-2-BUTENE WITHOUT ITS DOUBLE BOND MIGRATION OVER BORON PHOSPHATE EVACUATED AT A HIGH TEMPERATURE
Authors: Imizu Yuzo , Aoyama Shigeo , Itoh Hidenobu , Tada Akio 
Published: July 2006

Abstract
Although boron phosphate calcined in air at 1173 K did not show any catalytic activity for the isomerization and oligomerization of cis-2-butene at 298 K, boron phosphate evacuated at 1173 K catalyzed the oligomerization without any detectable formation of 1-butene at 273 K.
SYNTHESIS AND REACTION OF 3-(ALKYLTHIO)- 1,2-BENZISOTHIAZOLE 1,1-DIOXIDES AS AN ODORLESS CRYSTALLINE EQUIVALENT OF THIOLS
Authors: Inomata Katsuhiko , Yamada Hiroyuki , Kotake Hiroshi 
Published: July 2006

Abstract
It was found that sodium salt of 1,2-benzisothiazol-3(2H)-thione 1,1-dioxide (thiosaccharin) readily reacted with alkyl halide affording 3-(alkylthio)-1,2-benzisothiazole 1,1-dioxide, which very smoothly produced the corresponding alkanethiol by the reaction with piperidine in almost quantitative yield.
CHLORINATION OF ACYCLIC β-DIKETONES. FORMATION OF β-CHLORO-β,γ-UNSATURATED KETONES
Authors: Suama Masakazu , Nakajima Akihiko , Sugita Toshio , Ichikawa Katsuhiko 
Published: July 2006

Abstract
Chlorination of acyclic β-diketones with triphenylphosphine-carbon tetrachloride and the other chlorinating reagents afforded β-chloro-β,γ-unsaturated ketones except when the terminal alkyl group was methyl or t-butyl. Unsymmetrical acyclic β-diketones yielded a mixture of the products chlorinated on each carbonyl carbon.
MOTION OF C5H5 RINGS IN THREE CRYSTALLINE MODIFICATIONS OF FERROCENE AS STUDIED BY 1H NMR
Authors: Kubo Atsushi , Ikeda Ryuichi , Nakamura Daiyu 
Published: July 2006

Abstract
The 1H spin-lattice relaxation time T1 at 20 MHz and the second moment of 1H NMR absorptions were observed at various temperatures for ferrocene in its monoclinic, triclinic, and orthorhombic phases. The barrier to the rotational reorientation of C5H5 rings was found to be largest in the orthorhombic phase.
DISCRETE RADICAL SPECIES DEPENDENT UPON SOLVENT AS DETECTED BY CIDNP IN THE LIGHT-INDUCED ELECTRON TRANSFER FROM HYDROQUINONES TO PHEOPHYTIN a
Authors: Maruyama Kazuhiro , Furuta Hiroyuki , Otsuki Tetsuo 
Published: July 2006

Abstract
Light-induced electron transfer from hydroquinones to Phe a was studied by means of CIDNP technique. Depending upon the solvent, electron transfer proceeds in different manners. In benzene, ion radical pair; hydroquinone cation radical and Phe a\ewdot, of the triplet spin multiplicity was formed, whereas neutral radical pair;phenoxyl radical and Phe a-H·, of the singlet spin multiplicity in methanol.
A NEW CONVERSION OF SILYL ENOL ETHERS INTO THE CORRESPONDING BORON ENOLATES WITH DIALKYLBORON HALIDES OR DIALKYLBORON TRIFLATES, AND CROSS ALDOL REACTIONS VIA THE BORON ENOLATES
Authors: Wada Makoto 
Published: July 2006

Abstract
Silyl enol ethers react with dialkylboron halides or dialkylboron triflates to give the corresponding boron enolates quantitatively under mild conditions. Boron enolates thus generated are effectively used to afford cross aldol products with benzaldehyde.