bluuebunny/crossref_metadata_2025_split huggingface dataset:
A NEW TRANSFORMATION OF AN ESTER INTO ITS HOMOLOG AND AN α-HYDROXYALDEHYDE USING METHYL METHYLTHIOMETHYL SULFOXIDE
Authors: Ogura Katsuyuki , Furukawa Shigeko , Tsughihashi Gen-ichi 
Published: July 2006

Abstract
The carbanion (2) generated from methyl methylthiomethyl sulfoxide (1) reacts with an ester to afford an acylated product (3). This compound can be transformed into derivatives of the corresponding α-hydroxyaldehyde and also into the ester which has one more methylene group than the original ester (Scheme 2).
REACTION OF MIXED CARBOXYLIC ANHYDRIDES WITH GRIGNARD REAGENTS. A USEFUL METHOD FOR THE PREPARATION OF KETONES
Authors: Araki Masashi , Mukaiyama Teruaki 
Published: July 2006

Abstract
It was found that common ketones were prepared in good yields by the reaction of grignard reagents with mixed carboxylic anhydrides composed of o-substituted benzoic acids or pivalic acid and common carboxylic acids at −20 or −78°C. Further, it was established that a 1,4-diketone such as 2,5-dioxoundecane, a precursor of dihydrojasmone was synthesized in 71∼82% yields from levulinic acid by one step procedure without protecting its carbonyl group.
BASE CATALYZED OXYGENATION OF HINDERED PHENOLS. SYNTHESIS OF 4-HYDROXY-5,6-EPOXY-2-CYCLOHEXENONES (EPOXY-p-QUINOLS)
Authors: Nishinaga Akira , Itahara Toshio , Matsuura Teruo 
Published: July 2006

Abstract
Oxygenation of 2,6-di-t-butyl-4-alkylphenols catalyzed by Bu tOK in aprotic solvents has been found newly to form 4-hydroxy-5,6-epoxy-2-cyclohexenones (2) in excellent yield. A mechanism by which 2 is formed envisaging intramolecular participation of the π-system in the degradation of 4-oxo-2,5-cyclohexadienyl peroxide ion (11) primarily formed as transient intermediate is discussed. 2,4-Di-t-butylphenols also gave epoxy-p-quinols in the same system.
RESTRICTED ROTATION INVOLVING THE TETRAHEDRAL CARBON. VIII. ISOLATION OF THREE STABLE ROTAMERS ABOUT AN sp3–sp3 CARBON BOND
Authors: Yamamoto Gaku , Oki Michinori 
Published: July 2006

Abstract
Each of the three possible rotational isomers formed by the rotation about a C–C single bond between the bridgehead tert-alkyl group and the skeleton of dimethyl 2,3-dichloro-9-(1,1-dimethyl-2-phenylethyl)-9,10-dihydro-9,10-ethenoanthracene-11,12-dicarboxylate is isolated. These compounds are found to be very stable at room temperature. Structural assignment is made by the NMR evidence.
BI- AND TRINUCLEAR URANYL COMPLEXES WITH METAL SCHIFF BASE COMPLEXES
Authors: Condorelli Giuseppe , Fragala Ignazio , Giuffrida Salvatore 
Published: July 2006

Abstract
N, N′-1,3-propylene-bis(salicylideneiminato)Cu(II) reacts with some uranyl salts to form bi- and trinuclear complexes. Infrared data show that the “complex ligand” is coordinated to the uranyl ion in the equatorial plane through the phenolic oxygens. Diffuse reflectance spectra suggest a copper(II) environment more distorted from planarity in polynuclear species than the “complex ligand”.
STUDIES ON NUCLEOSIDES AND NUCLEOTIDES. III. SYNTHESIS AND REACTIONS OF 2′,3′-O-(TRIPHENYL)PHOSPHORANYL-O2,5′-CYCLOURIDINE
Authors: Kimura Junji , Fujisawa Yoshiyuki , Sawada Takamichi , Mitsunobu Oyo 
Published: July 2006

Abstract
The reaction of uridine, triphenylphosphine (I) and diethyl azodicarboxylate (II) in THF gave 2′,3′-O-(triphenyl)phosphoranyl-O2,5′-cyclouridine (III). The alkaline or acid hydrolysis of III gave uridine and triphenylphosphine oxide (1:1). The treatment of III in THF-water afforded O2,5′-cyclouridine. The reaction of III with methanol under reflux gave O2-methyluridine.
THE HIGHLY STEREOSELECTIVE SYNTHESIS OF ETHYL GERANATE
Authors: Kobayashi Susumu , Mukaiyama Teruaki 
Published: July 2006

Abstract
The new method for the stereospecific synthesis of trisubstituted olefin was successfully applied to a highly stereoselective synthesis of 1,5-diene unit, demonstrating the preparation of ethyl geranate [3] starting from 3-methyl-2-butenyl bromide [1].
RELATIVE SPIN-LATTICE RELAXATION TIMES OF H-8 AND H-1′ IN PURINE RIBONUCLEOSIDES AND RIBONUCLEOTIDES AS A MEASURE OF SYN OR ANTI CONFORMATION
Authors: Imoto Toshiaki , Akasaka Kazuyuki , Hatano Hiroyuki 
Published: July 2006

Abstract
Proton relaxation measurements with the pulse Fourier transform method have revealed that the spin-lattice relaxation times(T1) of H-8 and H-1′ in purine ribonucleosides and ribonucleotides depend strongly on the syn-anti conformation. The ratio of T1’s for the two protons is shown to be a convenient measure of the syn-anti conformational equilibrium.
THERMAL DECOMPOSITION PROCESS OF Bi2(SO4)3
Authors: Matsuzaki Ryoko , Sofue Atsuko , Masumizu Hagio , Saeki Yuzo 
Published: July 2006

Abstract
Bi2(SO4)3 begins to decompose at 465°C, and the decomposition process of Bi2(SO4)3 can be represented as follows: Bi2(SO4)3\xrightarrow465°CBi2O3·2Bi2(SO4)3\xrightarrow550°C2Bi2O3·Bi2(SO4)3\xrightarrow580°C7Bi2O3·2Bi2(SO4)3\xrightarrow830°C12Bi2O3·Bi2(SO4)3\xrightarrow880°C28Bi2O3·Bi2(SO4)3\xrightarrow920°CBi2O3.
THERMAL ISOMERIZATION OF AN ADDUCT OF TROPONE AND 8-OXOHEPTAFULVENE. A FIRST EXAMPLE OF ANTARAFACIAL [1,7] SIGMATROPIC REARRANGEMENT IN A RIGID SYSTEM
Authors: Morita Noboru , Asao Toyonobu , Kitahara Yoshio 
Published: July 2006

Abstract
Thermal isomerization of (2+8)cycloadducts of tropones and 8-oxoheptafulvene afforded 3-(cyclohexa-2,4-dienyl)-1-oxaazulan-2-ones by antarafacial [1,7] sigmatropic rearrangement which is a first example in a rigid system. An activation energy (21.4 kcal. mol−1) and an entropy of activation (−25.8 e.u.) were obtained for the reaction.
SYNTHESIS OF 13-NORTRICHOTHEC-9(10)-ENE. A MODEL REACTION TOWARD THE TOTAL SYNTHESIS OF TRICHODERMIN
Authors: Masuoka Noriyoshi , Kamikawa Tadao , Kubota Takashi 
Published: July 2006

Abstract
The synthesis of the title compound 20 modelled on the proposed biogenetic scheme is described. The key intermediate 11 has been synthesised by photocycloaddition followed by acid cleavage.
ESR STUDY OF HOT IONS, Ir(II) AND Ir(IV) IN γ-IRRADIATED Ir(III) COMPLEXES
Authors: Fujiwara Shizuo , Watanabe Tokuko , Inoue Takeko 
Published: July 2006

Abstract
ESR study of Ir hot ions produced in γ-irradiated Ir(III) complexes has been carried out. It has been found that Ir(II) hot ions take d7 configuration of low spin state. The unpaired electron is localized in d3z2−r2 orbital in the elongated octahedral structure. Ir(IV) hot ions are found to be formed in irradiated Ir(III) hexachloro complexes.
THE ACTION MODEL OF TYROSINASE. DIRECT OXIDATION OF 2-ANTHRANOL TO 1,2-ANTHRAQUINONE SPECIFICALLY CATALYZED BY CUPRIC ION
Authors: Iwata Masaaki , Emoto Sakae 
Published: July 2006

Abstract
L’oxydation directe par oxygène moleéculaire des anthranols-2 aux anthraquinones-1,2 est étudiée. La réaction est spécifiquement catalysée par l’ion cuivrique. L’addition d’une molécule d’imidazole par atome de cuivre augmente énormemént la Vitesse initiale de la réaction.
PHOTOCHEMICAL METHYLATION OF INORGANIC MERCURY IN THE PRESENCE OF SOLID SULFUR
Authors: Akagi Hirokatsu , Takabatake Eigo , Fujita Yuzaburo 
Published: July 2006

Abstract
The photosensitized methylation of inorganic mercury in the presence of solid sulfur was investigated in an aqueous acetic acid solution of mercuric acetate. It was found that the photooxidation of sulfur into sulfate ions coupled with the reduction of mercuric ions and the resulting sulfate ions reacted with mercuric acetate to produce basic mercuric sulfate, a yellow precipitate, which acted as an effective photosensitizer for the methylation.
STUDIES OF ENAMINES. VI. THE ADDITIONS OF PYRROLE AND PYRAZOLE TO ENAMINES
Authors: Tsuge Otohiko , Tashiro Masashi , Kiryu Yoko (née Nishihara) 
Published: July 2006

Abstract
Enamines derived from cyclohexanone, propionaldehyde, and n-butyraidehyde and secondary amines react with pyrrole and pyrazole, affording new Michael type adducts respectively.
AN EARLY STAGE CARBONIZATION PROCESS OF POLYVINYL CHLORIDE
Authors: Kamo Mutsukazu , Kanda Hisao , Sato Yoichiro , Setaka Nobuo 
Published: July 2006

Abstract
The cluster-like hydrocarbons characteristic of the pitch prepared from polyvinyl chloride at 400°C were not observed in the pitch prepared at 415°C. A reaction process in the early stage carbonization of the compound is proposed.
PHOTOCHEMICAL LIGAND SUBSTITUTION IN HEXAKIS(PHENYL ISOCYANIDE)CHROMIUM(O)-OLEFIN SYSTEMS
Authors: Iuchi Kazuhito , Asada Shintaro , Sugimori Akira 
Published: July 2006

Abstract
Dimethyl fumarate and fumaronitrile undergo photochemical ligand substitution toward hexakis(phenyl isocyanide)chromium(O). The coodinated dimethyl fumarate is eliminated in the dark without accompanying trans–cis isomerization. Dimethyl maleate, the cis-isomer, does not undergo this type of photoreaction.
STEREOSELECTIVE SYNTHESIS OF 3-C- AND 5-C-METHYL-α-d-GLUCOFURANOSE DERIVATIVES AND THEIR DIASTEREOMERS
Authors: Funabashi Masuo , Sato Haruo , Yoshimura Juji 
Published: July 2006

Abstract
The title compounds were stereoselectively prepared from 3-C-methylene-α-d-ribo- and 5-C-methylene-α-d-xylo-hexofuranose derivatives by successive epoxidation and reduction, and from corresponding 3- and 5-uloses by the Grignard reaction, respectively.
RESTRICTED ROTATION IN 5-NITROSOTROPOLONE AND THE ANION RADICAL
Authors: Ikegami Yusaku , Asao Toyonobu 
Published: July 2006

Abstract
The ESR study of the 5-nitrosotropolonate anion radical generated electrolytically in N,N-dimethylformamide elucidated the restricted rotation around the C–N bond. The free energy of activation ΔG≠ for the rotation of 5-nitrosotropolone was estimated by the NMR study to be 16.5 kcal·mol−1 in dimethylsulfoxide.
TEMPERATURE-INDEPENDENT DELAYED FLUORESCENCE IN BIPHENYL HOST: A RE-EXAMINATION OF ACTIVATION ENERGY
Authors: Kusumoto Yoshihumi , Gondo Yasuhiko , Kanda Yoshiya 
Published: July 2006

Abstract
The delayed fluorescence observed in the mixed crystals of benzo(f)quinoline in biphenyl host has been found to be independent of temperature in the low-temperature region from 90°K down to liquid helium temperature, and subtraction of this temperature-independent contribution gave straight-line fits of the log IDF/IP2-vs-l/T plots over the whole temperature range studied. In addition, some remarks have been made on the concentration effect.
THREE NEW DITERPENOIDS, JOLKINOLIDES C, D, AND E, ISOLATED FROM EUPHORBIA JOLKINI BOISS. (EUPHORBIACEAE)
Authors: Uemura Daisuke , Hirata Yoshimasa 
Published: July 2006

Abstract
Further investigation of constituents in title plants gave three new diterpenoids, named jolkinolides C, D, and E. In this report structural elucidation of those compounds was described.
THERMAL ELECTRON TRANSFER REACTION OF SOME BIGUANIDE–COBALT(III) COMPLEXES IN SOLID PHASE
Authors: Tsuchiya Ryokichi , Uehara Akira , Otsuka Kenji , Kyuno Eishin 
Published: July 2006

Abstract
The thermal reduction from Co(III) to Co(II) in the biguanide mixed complexes, trans-[Co(CH3NH2)2(bgH)2]Br3·H2O and trans-[Co(py)2-(bgH)2]ClBr22.5H2O, was investigated in solid phase. These Co(III) octahedral complexes were found to undergo an electron transfer and converted to Co(II) square–planar complexes upon heating retaining the metal–biguanide bonds.
A MÖSSBAUER SPECTROSCOPIC STUDY OF INTERCALATION COMPOUNDS OF GRAPHITE WITH FERRIC CHLORIDE AND ALUMINUM CHLORIDE
Authors: Tominaga Takeshi , Sakai Takuhiko , Kimura Tomohiko 
Published: July 2006

Abstract
The Mössbauer spectra of graphite-FeCl3 and graphite-FeCl3–AlCl3 compounds with varying FeCl3/AlCl3 ratio were measured at 80°K and 298°K. In the spectra of the latter compounds with FeCl3/AlCl3 ratio of approximately one and less were observed two quadrupole doublets indicating the presence of high-spin Fe(II).
5-(3-HYDROXYPROPYL)-2-(3′,-4′-METHYLENEDIOXYPHENYL)BENZOFURAN: A NEW BENZOFURAN FROM STYRAX OBASSIA SIEB. ET ZUCC.
Authors: Takanashi Masahide , Takizawa Yasuomi , Mitsuhashi Tatsuo 
Published: July 2006

Abstract
A new benzofuran derivative was isolated from the seed-oil of Styrax obassia Sieb. et Zucc., and the structure was determined as 5-(3-hydroxypropyl)-2-(3′, 4′-methylenedioxyphenyl)benzofuran.
AN ELECTRON SPIN RESONANCE STUDY OF A BRIDGEHEAD SILYL RADICAL
Authors: Sakurai Hideki , Ogi Katsumi , Hosomi Akira , Kira Mitsuo 
Published: July 2006

Abstract
Electron spin resonance spectrum of the bicyclo[2. 2. 2]-1-silaoctyl radical revealed β-, γ, and δ-hydrogen coupling constants to be 1.53, 0.37, and 0. 37 G, respectively. The small β-hydrogen coupling constant is ascribed to the pyramidal structure of the bridgehead silyl radical site.
POTENTIAL VARIATION AT THE SEMICONDUCTOR-ELECTROLYTE INTERFACE THROUGH A CHANGE IN pH OF THE SOLUTION
Authors: Watanabe Tadashi , Fujishima Akira , Honda Ken-ichi 
Published: July 2006

Abstract
Flatband potentials of n-type TiO2 and CdS single crystal electrodes have been measured as a function of the pH of the electrolyte solution. The potential drop across the electrical double layer at the TiO2 electrode surface was found to depend regularly on the solution pH, while that of CdS remained constant in the pH range from 2 to 13.
PHASE EQUILIBRIA IN THE V2O4–V2O5 SYSTEM AT TEMPERATURES FROM 500° TO 651°C
Authors: Endo Hozumi , Wakihara Masataka , Taniguchi Masao 
Published: July 2006

Abstract
The standard free energies (Δ G°) for V2O4 oxidation according to the following consecutive reaction
V2O4→V6O13→V3O7→V2O5
have been determined precisely on the basis of equilibrium oxygen pressure at 651°C. The standard free energy change for the reaction
2V3O7+1⁄2O2=3V2O5
can be expressed by Δ GR°=−12,271+2.57 T (500 – 651°C) ± 1340 cal.
THE PHOTOCONDUCTIVITY OF 1,5-DIACETYLANTHRACENE
Authors: Sugimoto Akira , Aoki Tadaaki , Inoue Hiroo , Imoto Eiji 
Published: July 2006

Abstract
1,5-Diacetylanthracene shows the anomalous photocurrent in the threshold region of the absorption spectrum when the evaporated film of 1,5-diacetylanthracene is irradiated with monochromatic light at various wavelengths under a nitrogen atmosphere.
THE CHEMICAL MODEL FOR THE CLASS II ALDOLASE. CUPRIC-ION CATALYZED ALDOL CONDENSATION OF AROMATIC ALDEHYDES WITH ACETONE
Authors: Iwata Masaaki , Emoto Sakae 
Published: July 2006

Abstract
The aldol condensation of several aromatic aldehydes with acetone was specifically catalyzed by cupric ion and the additional effect of zinc ion on the cupric-ion catalyzed condensation was substantiated.
ENERGY AND MASS DEPENDENCE OF THE PRODUCT YIELDS IN THE REACTION OF METHANOL WITH ACCELERATED INERT GAS IONS
Authors: Arai Eiichi , Takahasi Makoto 
Published: July 2006

Abstract
Ion impact reaction of methanol was studied with accelerated inert gas ions with initial energy from 2–6 kV. It is shown that the yields are linear vs. lnEi, and the ratio of the average logarithmic energy loss to the reaction probability (α⁄pj) was determined. The dependence of α on mass of the projectile ion is discussed.
COLOR REACTION OF HEAVIER RARE EARTHS WITH CHLOROPHOSPHONAZO III
Authors: Taketatsu Tomitsugu , Kono Noriko 
Published: July 2006

Abstract
In absorption spectra of heavier rare earth (Gd to Lu) chelates of Chlorophosphonazo III, the absorption bands extend from 700 to 800 nm with a maximum at approximately 745 nm. The intensity of these bands increases with an increase in the mole ratio of the metal to the reagent and in the atomic number. Also it depends upon the pH value and the elapsing time. The corresponding chelates of lighter rare earths (La to Eu) do not exhibit a similar maximum under the same conditions.
CATALYTIC POLAROGRAPHIC REDUCTION OF NITRATE ION IN THE PRESENCE OF IRON(II) AND IODATE AT DROPPING MERCURY ELECTRODE
Authors: Saito Atsuyoshi , Himeno Sadayuki 
Published: July 2006

Abstract
Polarographic reduction of nitrate took place in the ascending branch of an Fe(II) reduction wave in an unbuffered solution (pH 4–6) of a supporting electrolyte that contained iodate. In the potential region of reducing nitrate, the current varied periodically of which the period depended on the experimental condition.
A STEREOSELECTIVE SYNTHESIS OF (Z,E)-9,11-TETRADECADIENYL-1-ACETATE, A MAJOR COMPONENT OF THE SEX PHEROMONE OF SPODOPTERA LITURA
Authors: Goto Giichi , Shima Takashi , Masuya Hirotomo , Masuoka Yutaka , Hiraga Kentaro 
Published: July 2006

Abstract
Wittig reaction of 9-acetoxynonyl-triphenylphosphonium bromide (7) with (E)-2-pentenal (8) gave stereoselectively (85–90%) (Z,E)-9,11-tetradecadienyl-1-acetate (1) together with a small amount of the (E,E)-isomer (6) which was removed from the mixture by the formation of the Diels-Alder adduct (13) with tetracyanoethylene. In contrast, Wittig reaction of (E)-2-pentenyl-triphenylphosphonium bromide (3) with 9-acetoxynonyl aldehyde (5) afforded a mixture of 1 and 6.
A NEW ROUTE TO 3,7-DIMETHYL-2,6-OCTADIEN-1-OL AND 3,7-DIMETHYL-2-OCTENE-1,7-DIOL FROM ISOPRENE
Authors: Takabe Kunihiko , Katagiri Takao , Tanaka Juntaro 
Published: July 2006

Abstract
A convenient synthetic method for 3,7-dimethyl-2,6-octadien-1-ol (1) (geraniol and nerol) and 3,7-dimethyl-2-octene-1,7-diol (2), involving the anionic telomerization of isoprene and the rearrangement of amine oxide was established. The overall yields of (1) and (2) (E/Z ratio=2) from isoprene were 61 and 44%, respectively.
THE PREPARATION OF TRIPHENYLLEAD AROMATIC DITHIOCARBOXYLATES, AND THEIR REACTIONS WITH METAL ALKOXIDES. NEW SYNTHESIS OF THION ESTERS
Authors: Katada Tomonori , Kato Shinzi , Mizuta Masateru 
Published: July 2006

Abstract
Some crystalline triphenyllead aromatic dithiocarboxylates [ArCS2PbPh3] have been prepared in good yields. Treatment of these esters with metal alkoxides gave thion esters in fair to good yields.
SYNTHESIS OF ARYLTHIODIMETHYLSULFONIUM SALTS AND THEIR REACTIONS WITH NUCLEOPHILES
Authors: Minato Hiroshi , Miura Takashi , Kobayashi Michio 
Published: July 2006

Abstract
Arylthiodimethylsulfonium perchlorates (1) are prepared from arenesulfenyl chloride, methyl sulfide and silver perchlorate. The reactions of 1 with benzyl methyl sulfide, sodium methoxide, anisole, and 2,6-di-t-butylphenol are investigated, and all these nucleophiles attack 1 at its sulfide sulfur atom. The reactivity of 1 is compared with those of anilinosulfonium ion and phenoxysulfonium ion.
PROTON MAGNETIC RESONANCE SPECTRA OF METAL AMMINE COMPLEXES. V. THE TRANS-EFFECT IN COBALT(III) AMMINES AS EVIDENCED BY THE RATE OF ISOTOPIC DEUTERIUM EXCHANGE
Authors: Yoneda Hayami , Sakaguchi Ushio , Maeda Koichi 
Published: July 2006

Abstract
The rate of hydrogen exchange has been measured on cobalt(III) ammines and found to reflect the trans-effect. We confirmed that large inductive effects of CN− and, in some cases, NO2− offset the effect of the magnetic anisotropy of cobalt, which accounts for ammine proton chemical shifts in most complexes.
NITROGEN-15 CHEMICAL SHIFTS IN METAL-AMMINE COMPLEXES. I. PENTAAMMINECOBALT(III) COMPLEXES
Authors: Nakashima Yoshiaki , Muto Masayuki , Takagi Ichiro , Kawano Keiichi 
Published: July 2006

Abstract
Nitrogen-15 chemical shifts have been measured directly for [CoX(NH3)5]n+(X=NH3,H2O,Br− and NO2−). The chemical shifts induced by paramagnetic anisotropy of Co(III) ion are of minor importance to the 15N chemical shifts, in contrast with the previous result that they are of dominant importance to the 1H chemical shifts in the same substances. According to the change of X, the 15N chemical shifts of NH3 trans and cis to X show different values.
A CONVENIENT SYNTHESIS OF 1,3-BENZODITHIOLYLIUM FLUOROBORATE
Authors: Nakayama Jyuzo , Fujiwara Kazuo , Hoshino Masamatsu 
Published: July 2006

Abstract
1,3-Benzodithiolylium fluoroborate (I) was synthesized in excellent yields by the action of hydrofluoroboric acid on 2-alkoxy- and 2-alkylthio-1,3-benzodithioles and by the action of trityl fluoroborate on 1,3-benzodithiole (VI). The fluoroborate I reacted with cycloheptatriene to give tropylium fluoroborate and VI.
SUBSTRATE SPECIFICITY OF GERANYLGERANYL PYROPHOSPHATE SYNTHETASE
Authors: Shinka Toshihiro , Ogura Kyozo , Seto Shuichi 
Published: July 2006

Abstract
The trans isomers of 3-methyl-2-octenyl, 3-methyl-2-nonenyl, 3-methyl-2-decenyl, 3-methyl-2-undecenyl, and 3-methyl-2-dodecenyl pyrophosphates were found to act as artificial substrates for geranylgeranyl pyrophosphate synthetase of Micrococcus lysodeikticus.
CRYSTAL STRUCTURE OF K7[NiIVV13O38]·18H2O
Authors: Kobayashi Akiko , Sasaki Yukiyoshi 
Published: July 2006

Abstract
K7[NiIVV13O38]·18H2O is orthorhombic: space group I4⁄mmm, Z=2, a=11.37(1), c=19.56(1) Å. On Fourier projection maps, a discrete polyanion with an apparent point symmetry of D4h was found. But it was realized that this electron density image was yielded by the random orientation of the polyanion NiV13O384− which consists of one NiIVO6 and 13VO6 octahedra sharing edges.
A NOVEL METHOD FOR THE PREPARATION OF VARIOUS 2-PYRIDYL SULFIDES FROM ALCOHOLS
Authors: Mukaiyama Teruaki , Ikeda Shigeru , Kobayashi Susumu 
Published: July 2006

Abstract
1-Methyl-2-alkoxypyridinium salts, easily formed in situ from l-methyl-2-fluoropyridinium salt and alcohols, react with pyrid-2-thione in the presence of triethylamine to give the corresponding 2-pyridyl sulfides in good yields.
THE CRYSTAL STRUCTURE OF AMMONIUM DODECAMOLYBDOTETRAARSENATE(V) TETRAHYDRATE,(NH4)4 H4As4Mo12O50·4H2O
Authors: Nishikawa Toshihiro , Sasaki Yukiyoshi 
Published: July 2006

Abstract
(NH4)4H4As4Mo12O50·4H2O is tetragonal: space group P42/nnm, Z = 2, a = 11.923 (3), c = 17.564 (2) Å. The crystal contains a discrete polyanion, H4As4Mo12O504− of a Td point symmetry, consisting of four trigonal Mo3O13 groups. They are bound each other at six oxygen atoms, four AsO4 tetrahedra are attached from outside of the Mo12O46 cage. There is an empty cavity of the radius of 1.43 Å at the center of the polyanion.
RING CLEAVAGE REACTION OP CERTAIN 5,6-DIHALO-2-NORBORNENE OXIDES
Authors: Yanagida Yuji , Sakon Yutaka , Nomura Masakatsu , Kikkawa Shoichi 
Published: July 2006

Abstract
Ring cleavage reaction of trans- and endo-cis-5,6-dichlo (or dibromo)-2-norbornene oxides by hydrogen halides have been investigated. Normal trans addition products of hydrogen halides to the epoxide ring were obtained in the case of trans-5,6-dihalonorbornene oxides, while the cleavage reaction of endo-5,6-dihalonorbornene oxides gave the halohydrins which experienced transannuler shift of endo halogen substituent toward the resulting carbonium ion.
PRODUCTS AND MODES OF PHOTOCYCLOADDITION OF 9,10-PHENANTHRAQUINONE WITH CYCLIC OLEFINS
Authors: Maruyama Kazuhiro , Iwai Tatsuaki , Naruta Yoshinori 
Published: July 2006

Abstract
Photocycioaddition of 9,10-phenanthraquinone(PQ) and cyclic olefins; cyclohexene(1a), cycloheptene(1b), cis-cyclooctene(1c), and bicyclo[2.2.1]hept-2-ene(2) was investigated. It was found that the product distributions and the modes of photocycloaddition were profoundly dependent on the structure of cyclic olefins.
REDUCTIVE DEHALOGENATION OF α-HALO KETONES WITH BENZENETHIOL CATALYZED BY IRON-POLYPHTHALOCYANINE
Authors: Inoue Hiroo , Hata Hiroyuki , Imoto Eiji 
Published: July 2006

Abstract
It is found that α-halo ketones are reduced with benzenethiol in the presence of iron-polyphthalocyanine to the parent ketones, although they are not reduced in the absence of iron-polyphthalocyanine. The iron-polyphthalocyanine appears to serve as an electron-transfer catalyst for the reductive dehalogenation.
SYNTHESIS OF 5-(3-HYDROXYPROPYL)-2-(3′,4′-METHYLENEDIOXYPHENYL) BENZOFURAN AND RELATED STYRAX EXTRACTIVES
Authors: Schreiber Fred G , Stevenson Robert 
Published: July 2006

Abstract
Short procedures for the synthesis of the lignans (egonol, homo-egonol and the title compound) which are constituents of various Styrax species are reported.
CHELATE PHOSPHORUS YLIDE COMPLEXES OF PALLADIUM AND PLATINUM
Authors: Oosawa Yoshinao , Saito Taro , Sasaki Yukiyoshi 
Published: July 2006

Abstract
Several bidentate phosphorus ylide ligands of the type Ph2P–(CH2)n–P+(Ph2)–C−H–C(O)–R (n = 1, R = Ph; n = 2, R = CH3, OCH3) and their complexes of palladium(II) and platinum(II) chlorides have been synthesized and characterized.