bluuebunny/crossref_metadata_2025_split huggingface dataset:
REACTION OF (E)-PHENYL 2-PYRIDYL KETONE O-ACYLOXIMES (PPAO) WITH GRIGNARD REAGENTS. A CONVENIENT AND HIGHLY CHEMOSELECTIVE SYNTHESIS OF KETONES
Authors: Miyasaka Tadayo , Monobe Hideaki , Noguchi Shunsaku 
Published: July 2006

Abstract
The reaction of (E)-phenyl 2-pyridyl ketone O-acyloximes (PPAO) with Grignard reagents was found to be widely applicable to the chemoselective synthesis of various ketones in good yields under mild conditions.
SYNTHESIS OF QUINONE-CAPPED PORPHYRINS BY PORPHYRIN SELF-PHOTOSENSITIZED REACTION
Authors: Osuka Atsuhiro , Furuta Hiroyuki , Maruyama Kazuhiro 
Published: July 2006

Abstract
Quinone-capped porphyrins having formally perpendicular, coplanar, and orthogonal relative orientations were synthesized in one-pot by porphyrin self-photosensitization.
ACTION SPECTRUM FOR PHOTOINACTIVATION OF BACTERIOPHAGE LAMBDA SENSITIZED WITH 5-METHOXYPSORALEN. ROLE OF LIGHT ABSORPTION BY THE 4′,5′ ADDUCT
Authors: Fujita Hitoshi , Sasaki Masako 
Published: July 2006

Abstract
An action spectrum for photoinactivation of phage λ sensitized with 5-methoxypsoralen was measured. The maximal action was observed at 330 nm away from the absorption peak( 312 nm ). This implies that the second step absorption by the 4′,5′ adduct is much more efficient for the inactivation than the first step absorption.
STRONG METAL-SUPPORT INTERACTION (SMSI) BEHAVIOR OF Rh/Nb2O5 CATALYST STUDIED BY ETHANE HYDROGENOLYSIS AND HYDROGEN CHEMISORPTION
Authors: Kunimori Kimio , Ito Katsunori , Iwai Kiyoyuki , Uchijima Toshio 
Published: July 2006

Abstract
The high-temperature (773 K) pretreatment of a Rh/Nb2O5. catalyst in He as well as in H2 caused drastic decrease (by 103 in He, by 106 in H2) in the activity of ethane hydrogenolysis. Considering also the behavior of hydrogen chemisorption, there appears to be a difference in the nature of SMSI between Rh/Nb2O5 and Rh/TiO2 systems.
AN ANION-PROMOTED REARRANGEMENT OF 2-(o- AND p-NITROBENZYLOXY)TROPONES TO α-HYDROXYLATED 2-(o- AND p-NITROBENZYL)TROPONES. A READY INTRODUCTION OF ARALKYL GROUP INTO THE TROPONOID NUCLEUS
Authors: Takeshita Hitoshi , Mori Akira , Suizu Hiroshi 
Published: July 2006

Abstract
During the preparation of 2-(o- and p-nitrobenzyloxy)tropones from o- and p-nitrobenzyl chlorides and potassium tropolonate, a concomittant formation of α-hydroxylated 2-(o- and p-nitrobenzyl)tropones and 3-(o- and p-nitrobenzyl)tropolones was recognized. This alkali-promoted reaction has no precedent analogy in the troponoid chemistry. From the 2-(p-nitrobenzoyl)tropone, a tetrahydrobenzodiazaheptalenone, 6-(p-nitrophenyl)-5,7,11a,12-tetrahydrocyclohepta[b](1,5)benzodiazepin-7-one, was prepared.
A NEW METHOD FOR THE MEASUREMENT OF COPPER(II)-COMPLEXING CAPACITY OF NATURAL WATERS BY BACK-EXTRACTION TECHNIQUE
Authors: Akaiwa Hideo , Kawamoto Hiroshi , Ogura Hiroshi 
Published: July 2006

Abstract
Back-extraction technique using bis(4,4,4-trifluoro-1-pheny1-1,3-butanedionato)copper(II) was introduced to develop a method for the measurement of the copper(II)-complexing capacity(CuCC) and the method was applied to river water samples. Some ligands derived from human activity were found to cause an enhancement in the CuCC-value.
ETHYLENE ABSORPTION BY SOLUTIONS OF COPPER(I) CHLORIDE AND AMINES IN METHANOL
Authors: Hirai Hidefumi , Kurima Kazunori , Komiyama Makoto 
Published: July 2006

Abstract
N,N,N′,N′-Tetramethylethylenediamine, N,N,N′,N′-tetraethylethylenediamine, and N,N,N′-trimethylethylenediamine are stirred with copper(I) chloride in methanol at a charged molar ratio of unity, resulting in homogeneous solutions of the copper(I) chloride-diamine complexes. The solutions, respectively, absorb 11.0, 4.8, and 11.3 mmol of ethylene at 20 °C under 1 atm.
DETERMINATION OF STEREOCONFIGURATION OF 1,2-DIARYLOXYCYCLOBUTANES BY OPTICAL RESOLUTION AND INTRAMOLECULAR EXCIMER FORMATION OF CIS-1,2-DIPHENOXYCYCLOBUTANE
Authors: Mizuno Kazuhiko , Otsuji Yoshio 
Published: July 2006

Abstract
Two enantiomers of trans-1,2-diaryloxycyclobutanes were resolved by high-performance liquid chromatography (HPLC) using columns packed with chiral compounds. Measurement of fluorescence indicated that cis-1,2-diphenoxycyclobutane formed an intramolecular excimer between two phenoxy groups at ambient temperature.
DOMAIN STRUCTURES OF LiNbO3 CRYSTALS GROWN BY A FLOATING ZONE TECHNIQUE
Authors: Kawakami Shoji , Ishii Eiichi , Takahashi Akio , Tsuzuki Akihiro , Sekiya Tadashi , Torii Yasuyoshi 
Published: July 2006

Abstract
LiNbO3 single crystals were grown from the congruently melting composition by a floating zone technique. It was confirmed by etching that the single domain crystals were produced without applying any external electric field. When annealed above the Curie temperature, antiparallel domain appeared in the form of annual rings.
PHENYL AND CYCLOHEXYL GROUPS AS SIMILARLY-SHAPED SUBSTITUENTS PRODUCING VERY SIMILAR CHEMICAL SELECTIVITY IN OXIDATION OF ASSOCIATING THIOLS
Authors: Endo Tadashi , Kasahara Hisashi , Yagi Shigeki , Tajima Koki , Ito Masato M , Ogino Masahiko , Hagino Kazuomi 
Published: July 2006

Abstract
The selectivity in oxidation of a pair of associating thiols, one with R2 as a substituent, was examined in aqueous acetonitrile. The selectivity for acyclic alkyl groups (R2) differed entirely from that for the cyclohexyl and phenyl groups (R2) at 35.0 °C. The pattern of temperature dependence of the selectivity for the two similarly-shaped cyclic groups (i.e., cyclohexyl and phenyl groups) was very similar to each other.
CATALYTIC FUNCTION OF A HOST–GUEST COMPLEX DERIVED FROM OCTOPUS AZAPARACYCLOPHANE AND HYDROPHOBIC VITAMIN B12 AS A HOLOENZYME MODEL
Authors: Murakami Yukito , Hisaeda Yoshio , Kikuchi Jun-ichi , Ohno Teruhisa , Suzuki Masashi , Matsuda Yoshihisa 
Published: July 2006

Abstract
The isomerization reaction accompanied with carbon-skeleton rearrangement, as typically catalyzed by the vitamin B12-dependent methylmalonyl-CoA mutase, was simulated by employing the host–guest complexes formed with an octopus azaparacyclophane having eight hydrocarbon chains and hydrophobic vitamin B12 derivatives.
LASER-PHOTOLYSIS STUDY OF ARYL-SUBSTITUTED SILYL AND STANNYL ANIONS
Authors: Mochida Kunio , Wakasa Masanobu , Sakaguchi Yoshio , Hayashi Hisaharu 
Published: July 2006

Abstract
Photochemical primary processes of aryl-substituted silyl and stannyl anions were studied at room temperature. The silyl and stannyl radicals generated were observed directly by laser-photolysis.
EXCLUSIVE CYCLIZATION AT SULFUR IN PHOTOLYSIS OF β-[(o-ARYLTHIO)PHENYL]VINYL BROMIDES
Authors: Kitamura Tsugio , Kawasato Hironobu , Kobayashi Shinjiro , Taniguchi Hiroshi 
Published: July 2006

Abstract
Photolysis of β-[(o-arylthio)phenyl]vinyl bromides, in contrast to the oxy-derivatives, resulted in exclusive cyclization at sulfur to give 1-benzothiophenes. The results were discussed by the nature of sulfur.
NEW “Pd / ULTRA-THIN AMORPHOUS-OXIDE LAYER /ZSM-5” CATALYSTS FOR SELECTIVE FORMATION OF PROPANE FROM CO/H2
Authors: Kase Akira , Asakura Kiyotaka , Egawa Chikashi , Iwasawa Yasuhiro 
Published: July 2006

Abstract
Among new three types of “Pd / ultra-thin amorphous-oxide(La2O3, SiO2, or TiO2) layers / ZSM-5” catalysts, prepared by a two-stage attaching technique, the La2O3-coated ZSM-5 -supported Pd catalyst was found to be a selective catalyst for propane formation (68%) from CO and H2 at 543 K and 1.01 MPa.
CHEMICALLY PREPARED POLY(N-METHYLPYRROLE) THIN FILM. ITS APPLICATION TO THE FIELD-EFFECT TRANSISTOR
Authors: Tsumura Akira , Koezuka Hiroshi , Tsunoda Sei , Ando Torahiko 
Published: July 2006

Abstract
A thin film of poly(N-methylpyrrole) has been prepared by a chemical method. The chemical structure of the polymer resembles that of the electrochemically prepared one. A fild-effect transistor has been fabricated utilizing the polymer as a semiconducting material.
CRYSTAL STRUCTURE OF α′-(BEDT-TTF)2BrICl
Authors: Kobayashi Hayao , Kato Reizo , Kobayashi Akiko , Saito Gunzi , Tokumoto Madoka , Anzai Hiroyuki , Ishiguro Takehiko 
Published: July 2006

Abstract
Crystal of the semiconducting salt of α′-(BEDT-TTF)2BrICl has a modified structure of metallic α-(BEDT-TTF)2I3. Unlike the molecules in α-(BEDT-TTF)2I3, all the molecules are on the general positions. The average molecular planes of two crystallographically independent BEDT-TTF molecules are not parallel. The dihedral angle between them is 48°. A two-dimensional sulfur network is formed by the intermolecular short S···S contacts.
THE REACTION OF 2,2-DIMETHYL-4-LITHIO-1,3-OXATHIANE 3,3-DIOXIDE. GENERAL SYNTHESIS OF γ-HYDROXYKETONES
Authors: Fuji Kaoru , Node Manabu , Usami Yoshihide 
Published: July 2006

Abstract
Reactions of 2,2-dimethyl-4-lithio-1,3-oxathiane 3,3-dioxide (2) with alkyl halides and carbonyl compounds proceed smoothly to give 4-substituted heterocycles. A general synthesis of γ-hydroxyketones from aldehydes utilizing 2 is described.
SYNTHESIS OF trans-(DICHLOROMETHYL)BIS(2,4-PENTANEDIONATO)(AQUA, PYRIDINE, OR METHANOL)CHROMIUM(III) AND CRYSTAL STRUCTURE OF trans-(DICHLOROMETHYL)BIS(2,4-PENTANEDIONATO)PYRIDINECHROMIUM(III)
Authors: Shoji Masato , Shimura Makoto , Ogino Hiroshi , Ito Tasuku 
Published: July 2006

Abstract
The complexes, [Cr(CHCl2)(acac)2L] (L = H2O, CH3OH, and pyridine), were prepared, where acac− denotes 2,4-pentanedionate ion. [Cr(CHCl2)(acac)2(CH3OH)] reacts with pyridine(py) rapidly to give [Cr(CHCl2)(acac)2(py)]. The structure of [Cr(CHCl2)-(acac)2(py)] has been determined to be trans by single crystal X-ray diffraction. The Cr–N(py) bond lengthens to 2.16(1) Å. This may be associated with that rapid substitution reaction.
Photocatalytic Reduction of NO3− to Form NH3 over Pt–TiO2
Authors: Kudo Akihiko , Domen Kazunari , Maruya Ken-ichi , Onishi Takaharu 
Published: July 2006

Abstract
Photocatalytic reduction of NO3− to form NH3 and the simultaneous evolution of O2 were observed over Pt–TiO2 in aqueous nitric acid and sodium nitrate solutions.
Substituent Effect on the Stability of Benzyl Cation in the Gas Phase
Authors: Mishima Masaaki , Arima Kiyoshi , Usui Satoshi , Fujio Mizue , Tsuno Yuho 
Published: July 2006

Abstract
Chloride ion affinities of substituted benzyl cations in the gas phase have been determined by means of an ICR mass spectrometer. The substituent effect has been analyzed in terms of the LArSR Eq., giving a ρ=13.6 and an r+=1.31.
A General Synthesis of cis Perhydro 3,6-Isoquinolinediones Related to the Alloyohimbane Alkaloids
Authors: Stork Gilbert , Livingston Douglas A 
Published: July 2006

Abstract
The intramolecular annulation of malonic acid derivatives of 4-aminomethyl cyclohexenones is shown to be an efficient route to 3,6-diketoderivatives of cis perhydroisoquinolines.
Trityl Salts Catalyzed Aldol-Type Reaction of Alkyl Enol Ethers with Acetals
Authors: Murakami Masahiro , Minamikawa Hiroyuki , Mukaiyama Teruaki 
Published: July 2006

Abstract
β-Alkoxy ketones are synthesized in good yields by the reaction of alkyl enol ethers with acetals in the presence of a catalytic amount of trityl salts. Of enol ethers, methoxymethyl (MOM) enol ether exhibits an enhanced reactivity as a nucleophile.
A Pt/Alumina Catalyst Coated on Aluminum Thin Plate for Oxidation Reaction on Heat Transfer Surface
Authors: Hashioka Tohru , Kosedo Shinji , Itoh Mami , Yamamoto Kyoko , Kameyama Hideo , Kabe Toshiaki 
Published: July 2006

Abstract
In order to give catalytic activity to heat transfer surface, aluminum plate was treated by anodization, γ-alumina coating and Pt-impregnation. Prepared catalysts showed a substantial activity for the oxidation of acetone and also showed good thermal conductivity.
Novel Transient Absorption of Irradiated DMSO in Carbon Tetrachloride as Studied by Pulse Radiolysis
Authors: Sumiyoshi Takashi , Katayama Meiseki 
Published: July 2006

Abstract
Transient absorption spectra with a maximum at 400 nm have been observed in the pulse radiolysis of dimethyl sulfoxide in carbon tetrachloride solutions. The transients are attributed to the complexes formed in reaction of chlorine atom with dimethyl sulfoxide based on spectral and kinetic studies.
Cis and Trans Isomers of Iodonitrosylbis(vicinal-dioximato)ruthenium(III)
Authors: Fukuchi Takashi , Miki Eiichi , Mizumachi Kunihiko , Ishimori Tatsujiro 
Published: July 2006

Abstract
The mixture of cis and trans isomers of [Rul(Hdmo)2(NO)] (H2dmo = 2,3-butanedione dioxime) or [RuI(Hdpo)2(NO)] (H2dpo = 1,2-diphenylethanedione dioxime) was prepared, and the isomers were separated with a silica-gel column. The cis isomers together with the trans isomers were identified by the 1H and 13C NMR, and IR data.
Pyridinium Chlorochromate in Organic Synthesis. A Facile and Selective Oxidative Cleavage of Enol Ethers
Authors: Baskaran S , Islam I , Raghavan Malini , Chandrasekaran S 
Published: July 2006

Abstract
Pyridinium chlorochromate (PCC) has been found to be selective reagent for the oxidative cleavage of enol ethers to esters or keto lactones in high yields.
Nucleophilic Substitution of Aromatic Halides with Amines under High Pressure
Authors: Ibata Toshikazu , Isogami Yasushi , Toyoda Jiro 
Published: July 2006

Abstract
The reaction of aromatic chlorides, bromides and iodides with various primary or secondary amines in a tetrahydrofuran solution under high pressure of 6–12 kbar gave the corresponding secondary and tertiary aromatic amines. The yields of the products depend on the bulkiness of amines used. 1,4-Diazabicyclo[2.2.2]octane and quinuclidine gave N-aryl quarternary ammonium halides in high yields in contrast to the low reactivity of acyclic tertiary amines.
Regioselective 6-Arylation of 5,8-Quinolinedione with N-Alkyl-and N,N-Dialkyl-anilines Promoted by Metal Ions
Authors: Yoshida Katsuhira , Ishiguro Miwa , Honda Hiroyuki , Kubo Yuji 
Published: July 2006

Abstract
The reaction of 5,8-quinolinedione (1) with N,N-dialkylanilines in acetic acid was strongly promoted by some metal ions to give selectively the 6-arylated products, 6-(4-N,N-dialkylaminophenyl)-5,8-quinolinediones. With N-alkylanilines the reaction gave a mixture of the 6-aminated and 6-arylated products of 1.
Regio- and Stereoselective Synthesis of (E)- and (Z)-Vinylic Sulfones and Their Conversion to the Corresponding Allylic Sulfones
Authors: Kobayashi Toshifumi , Tanaka Yuhji , Ohtani Takashi , Kinoshita Hideki , Inomata Katsuhiko , Kotake Hiroshi 
Published: July 2006

Abstract
(E)- and (Z)-vinylic sulfones were prepared regio- and stereoselectively from 1-alkenes or 1-alkynes in high yields via iodosulfonization in AcOEt-H2O. The vinylic sulfones thus prepared were converted to the corresponding allylic sulfones by treatment with DBU. Stereochemistry of the conversion was discussed.
Synthesis of Optically Active Inositol Derivatives Starting from d-Glucurono-6,3-lactone
Authors: Watanabe Yutaka , Mitani Motohiro , Ozaki Shoichiro 
Published: July 2006

Abstract
d-Glucurono-6,3-lactone was converted to optically active and partially protected inositols. The synthetic strategy involves an efficient conversion of the d-gluco configuration to the l-ido configuration and reductive cyclization of dials to cyclitols.
Preparation of Graphite Intercalation Compound of Niobium Fluoride in Fluorine Atmosphere
Authors: Nakajima Tsuyoshi , Okahara Kenji , Padma Doddaballapur K , Watanabe Nobuatsu 
Published: July 2006

Abstract
The 1st stage intercalation compound of graphite with niobium fluoride has been prepared in fluorine gas of 101 kPa. The composition is C8−10NbF6−7 with repeat distance of 0.818–0.834 nm. The highest electrical conductivity is 1.2×105 S cm−1 at stage 2+3.
Synthesis of 3-(4-Cyclopentene-1,3-dione-2-ylidene)-6-(diphenylmethylene)cyclohexadienes as Novel p-Quinodimethanes Stabilized by Antiaromaticity of Cyclopentadienone
Authors: Toda Mitsuo , Hattori Makiko , Okada Keiji , Oda Masaji 
Published: July 2006

Abstract
Title compounds, whose polarization is decreased by antiaromaticity of cyclopentadienone, have been synthesized through a novel Rh(II)-catalyzed arylation of cyclic 2-diazo-1,3-diones.
A New Propargylic Rearrangement of Acetylenic Alcohols by P4S10. A New Preparative Method for Monothio-α-diketone
Authors: Toda Fumio , Tokunaga Yasuyuki 
Published: July 2006

Abstract
Treatment of acetylenic alcohols with phosphorus pentasulfide P4S10 at room temperature gave thioketones. Similarly, treatment of acetylenic alcohol having a carbonyl group on its acetylenic carbon gave monothio-α-diketone. It was clarified that four sulfur atoms of P4S10 are involved in the reaction.
Template Synthesis of Copper (II) Complex with Tetraaza Macrocycle in Solid Phase
Authors: Fujiwara Manabu , Kinoshita Setsuko , Wakita Hisanobu , Matsushita Takayuki , Shono Toshiyuki 
Published: July 2006

Abstract
The ethylenediamine adduct of bis(3-nitro-2,4-pentanedionato) copper (II) was prepared in ethanol, and characterized by spectroscopic and elemental analyses. The thermal reaction of the adduct in the solid phase resulted in the formation of a tetraaza macrocyclic copper(II) complex by the intramolecular condensation.
Preparation of Molybdenum Intercalated Tantalum Disulphide MoxTaS2
Authors: Saeki Masanobu , Onoda Mitsuko 
Published: July 2006

Abstract
Molybdenum intercalated tantalum disulphides have been prepared from the elements at 1350 °C. The crystal structures of the compounds were found to be dependent on the amount of intercalated molybdenum atoms. The structures were type Is at x=0 in MoxTaS2 type 3s at x=1/9, and type 2s at x=1/5. There was no evidence of ordered distribution of molybdenum atoms in the layers.
Biosynthesis of Phytuberin
Authors: Murai Akio , Yoshizawa Yuko , Miyazaki Hiroshi , Masamune Tadashi , Sato Norio 
Published: July 2006

Abstract
Feeding experiments with (±)-[8,8-2H2]solavetivone in diseased potato tuber tissues indicated that phytuberin, one of the most representative phytoalexins in the Solanaceae, was biosynthesized from solavetivone.
Selective Destruction of the Synthetic Vesicles by the Reductive Cleavage of Disulfide Linkage
Authors: Chang Suk-Kyu , Kim Duck-Hee , Kim Nam-Yee , Cho Iwhan 
Published: July 2006

Abstract
A series of dialkyl disulfide surfactants were prepared by the reaction of different aliphatic amines with S-acetylmercaptosuccinic anhydride followed by the oxidation with iodine. Selective destruction of the vesicles formed by the above surfactants were successfully performed by the reductive. cleavage of dialkyl disulfide to its monoalkyl thiol surfactants with various mercaptans.
Observation of Silicon-29 Lanthanoid-Induced Shifts and Its Use for Estimates of Equilibrium Constants for the Complex of an Organosilane with a Lanthanoid Shift Reagent
Authors: Hirayama Masatoshi , Arai Juichi 
Published: July 2006

Abstract
On the successive addition of Pr(fod)3(L) to a 0.53 M CDCl3 solution of diethoxydimethylsilane(S) at 25 °C, the large lanthanoid-induced 29Si shifts were observed and analyzed in terms of the least squares fits to one step equilibrium between L and S to estimate the intrinsic shift of the 1:1 complex and the equilibrium constant.
Structural Features of the Radicals Leached out of a Plasma-Driven Ultrathin Film in Molecular Weight Terms
Authors: Kuzuya Masayuki , Nakanishi Masaharu , Tanaka Yoshizumi 
Published: July 2006

Abstract
Structural features of the radicals leached out of a plasma-driven ultrathin film in molecular weight terms were presented based on the permeability of such radicals to initiate the aqueous solution-polymerization of acrylic acid on the specially designed experiment.
Preparation of Trifluoromethylated Compounds by Anodic Oxidation of 3-Hydroxy-2-trifluoromethylpropionic Acid
Authors: Kubota Toshio , Aoyagi Ryouji , Sando Hidehiro , Kawasumi Masashi , Tanaka Tatsuo 
Published: July 2006

Abstract
Electrochemical Oxidation of 3-hydroxy-2-trifluoromethylpropionic acid(1) produced 2,3-bis (trifluoromethyl)-1,4-butanediol in quantitative yield. Furthermore, 2-trifluoromethylated alcohols were obtained by the crossed Kolbe reaction of 1 with carboxylic acids or dicarboxylic acid mono esters.
Ring Expansion through [2+2] Photocycloaddition–β-Scission Sequence. Two Carbon Ring Expansions of β-Indanone and β-Tetralone
Authors: Suginome Hiroshi , Itoh Masahito , Kobayashi Kazuhiro 
Published: July 2006

Abstract
We describe a new method for two carbon ring expansions of 5-and 6-membered rings of β-indanone and β-tetralone through the [2+2] photocycloaddition of the enol ethers of the cyclic ketones followed by the radical cleavage of the fused bond of the cyclobutanols derived from the adducts.
Organic Substrates Producing a Dual-Frequency Belousov–Zhabotinskii Oscillating Reaction
Authors: Tsukada Masao 
Published: July 2006

Abstract
Four organic substrates, acetoacetic acid methyl ester, 4-chloroacetoacetic acid ethyl ester, acetonedicarboxylic acid diethyl ester, and N-methylacetoacetamide, have been found to generate dual-frequency oscillations in the Belousov–Zhabotinskii type reaction system.
Crystal Structure of (−)500CD-mer-(3-Azapentane-1,5-diamine)(ethylenediamine-N-acetato)cobalt(III) Bromide
Authors: Okamoto Ken-ichi , Yasui Takaji , Hidaka Jinsai 
Published: July 2006

Abstract
The crystal structure and absolute configuration of the title complex, (−)500CD-mer-[Co(edma)(dien)]Br2, was determined by X-ray diffraction study. There are three crystallographically independent complex cations in an asymmetric unit. All of them, in which the terdentate ligands coordinate meridionally, have a δ spiral configuration and the asymmetric nitrogen donor atoms of the edma take an S configuration.
Highly Diastereoselective Synthesis of Aminoalcohols of Ephedrine Type
Authors: Solladie-Cavallo Arlette , Dreyfus Anne-Claire , Sanch François , Klein Arlette 
Published: July 2006

Abstract
Analogs of ephedrine are obtained in 80% yield in 3 steps from chiral arenechromium tricarbonyl complexes. Hence optically pure complexes afford optically pure analogs of ephedrine.
Photo-Rearrangement of Polychlorobenzenes meta-Migration of Chlorine Atom
Authors: Morisaki Kenji , Miura Yasuki , Abe Kazuhisa , Hirota Minoru , Nakada Masahiro 
Published: July 2006

Abstract
Several polychlorobenzenes were irradiated by ultraviolet light (254 nm) in acetonitrile and the products were determined by gas chromatography. In addition to the abstraction of hydrogen atom from the solvent, photo-isomerization was shown to proceed giving isomeric polychlorobenzenes one of which chlorine atoms migrated to meta to the original position. The meta-rearrangement was rationalized by an MNDO calculation on o-chlorophenyl free radical.
Determination of Trace Iron in Raw Materials Used for Fluoride Glass Fibers by Neutron Activation Analysis
Authors: Kobayashi Kenji 
Published: July 2006

Abstract
Trace iron in seven kinds of raw materials used for fluoride glass fibers was determined by neutron activation analysis. Substoichiometric neutron activation analysis of iron in (NH4)2ZrF6, ZrF4, and BaF2 and instrumental neutron activation analysis of iron in YF3, LaF3, AlF3, and NaF were carried out. Iron concentration in sublimated ZrF4, BaF2, YF3, and LaF3 was in the 11–76 ng g−1 range.
2,4,6-Trisubstituted Phenols as Cooperative Carriers in Crown-ether Mediated Extraction and Transport of Cations
Authors: He Gong-Xin , Ishii Izumi , Kurita Mayumi , Kikukawa Kiyoshi , Matsuda Tsutomu 
Published: July 2006

Abstract
Trisubstituted phenols having two bulky groups at 2,6-position and pKa value below 7 proved to be good cooperative carriers in solvent extraction and liquid membrane transport of alkali-metal cations with crown ethers.
Separation of Cyclohexanol and Cyclohexanone by Complexation with 1,1-Di(p-hydroxyphenyl)cyclohexane and 1,1,6,6-Tetraphenylhexa-2,4-diyne-1,6-diol, and Crystallographies Structural Studies of the Complexes with the Former Host Compound
Authors: Goldberg Israel , Stein Zafra , Kai Akihiro , Toda Fumio 
Published: July 2006

Abstract
An efficient separation of cyclohexanol and cyclohexanone by selective complexations with the title host compounds has been achieved. Crystallographic analyses of the corresponding 1:1 complexes with the cyclohexane host derivative show a characteristic structure type which is dominated by continuous arrays of hydrogen bonds