bluuebunny/crossref_metadata_2025_split huggingface dataset:
THE NOVEL TYPE STRUCTURE OF Δ-CIS-α-[(1R,2R) -N,N′-BIS(2-PYRIDYLMETHYL)-1,2-CYCLOHEXANEDIAMINE]DICHLOROCHROMIUM(III) CATION
Authors: Yamamoto Yukihiro , Hata Yasuo , Shimura Yoichi 
Published: July 2006

Abstract
The molecular structure of Δ-CIS-α-[CrCl2(RR-picchxn)]+ was determined by the X-ray structure analysis (RR-picchxn = (1R,2R)-N,N′-bis(2-pyridylmethyl)-1,2-cyclohexanediamine). The terminal chelate ring formed by the coordination of equatorially-oriented substituent on the secondary nitrogen atom is of novel type.
THE PHOTOCHEMICAL BEHAVIOR OF CYCLIC IMINO ETHERS. THE N–O BOND FISSION AND SYN-ANTI ISOMERIZATION IN THE C=N–O CHROMOPHORE
Authors: Saiki Hiroshi , Mukai Toshio 
Published: July 2006

Abstract
Six-, seven-, and eight-membered cyclic imino ethers (3, 4, and 5) were synthesized and their photoreactions were investigated to compare with those of isoxazoline derivatives. The derivatives of 3 upon irradiation afforded ring-cleaved products, whereas 4 and 5 were found to be inert to irradiation.
CRYSTAL STRUCTURE OF (−)4 7 4-mer-{N-2-AMIN0ETHYL-(1,3-PROPANEDIAMINE)}(DIETHYLENETRIAMINE) COBALT(III) IODIDE MONOHYDRATE
Authors: Ishii Minoru , Sato Shoichi , Saito Yoshihiko , Nakahara Masayoshi 
Published: July 2006

Abstract
The molecular structure of the title compound was determined to be (S)-mer-I type by X-ray diffraction. The N(secondary)–H bond in the diethylenetriamine (dien) is directed toward the six-membered chelate ring formed by the N-2-aminoethyl-(1,3-propanediamine) (aepn). The six-membered ring formed by the aepn takes a chair-form and its five-membered-ring is δ, while those of the two five-membered rings of the duen are λ and δ, respectively.
UNCOUPLER HAS A WEAK IONOPHORIC ACTIVITY
Authors: Ueno Masaharu , Yasui Tomomi , Horikoshi Isamu 
Published: July 2006

Abstract
The potassium ion transport across liposomal membranes induced by uncoupler was studied. Both SF6847 and DNP induced K+ leak from liposomes containing KSCN, but did not induce the leak from liposomes containing KC1. A powerful uncoupler, SF6847, was also a stronger K+ ionophore than a weak uncoupler, DNP.
A NEW METHOD FOR THE PREPARATION OF ZEOLITE ZSM-5 BY USING SODIUM n-DODECYLBENZENE SULFONATE
Authors: Hagiwara Hiroyuki , Kiyozumi Yoshimichi , Kurita Minoru , Sato Toshio , Shimada Hiromichi , Suzuki Kunio , Shin Shigemistu , Nishijima Akio , Todo Naoyuki 
Published: July 2006

Abstract
Zeolite ZSM-5 was easily synthesized by using sodium n-dodecylbenzene sulfonate (SDBS) in place of organic ammonium and/or phosphonium ions. A well-crystallized ZSM-5 was obtained by the mild hydrothermal treatment of a reaction mixture composed of SDBS and alumina-silica gel at about 180 °C and PH2O ≈10 kg/cm2 for 4 h.
SYNTHESIS OF 1-(DIMETHYLAMINOMETHYLENE)-6(1H)-AZULENONE, A 1,6-AZULENEQUINONE 1-METHIDE DERIVATIVE
Authors: Morita Tadayoshi , Ise Fumiaki , Takase Kahei 
Published: July 2006

Abstract
Reaction of 6-hydroxyazulene with DMF-POCl3 followed by treatment with aq HN(CH3)2 gave 1-(dimethylaminomethylene)-6(1H)-azulenone (2) in 100% yield. Treatment of 2 with Ac2O generated 6-acetoxy-1-formylazulene (3) which was hydrolyzed with aq HN(CH3)2 at room temp to give 1-formyl-6-hydroxyazulene (4). Upon heating of 3 with aq HN(CH3)2, 2 was obtained. Alkaline hydrolysis of 2 afforded 4.
A NEW SYNTHESIS OF β NITRO CARBONYL COMPOUNDS FROM ALKYL VINYL KETONES WITH SODIUM NITRITE-ACETIC ACID IN TETRAHYDROFURAN
Authors: Miyakoshi Tetuo , Saito Shojiro , Kumanotani Ju 
Published: July 2006

Abstract
The reaction of alkyl vinyl ketones with sodium nitrite-acetic acid in THF gave the corresponding β-nitro carbonyl compounds in 42–82% yield.
REACT0ION OF (1-3-η-VINYLCARBENE)IRON COMPLEXES WITH ENNEACARBONYLDIIRON; FORMATION OF A FERRACYCLOPENTADIENEIRON(Fe–Fe) COMPLEX AND A VINYLCARBENEDIIRON(Fe–Fe) COMPLEX
Authors: Mitsudo Take-aki , Watanabe Hiroyoshi , Watanabe Katsuya , Watanabe Yoshihisa , Kafuku Komei , Nakatsu Kazumi 
Published: July 2006

Abstract
The (η3-vinylcarbene)iron complex 1 reacts with Fe2(CO)9 to give a ‘ferrole’ derivative 3. Methylation of 3 with diazomethane gives a methoxy derivative 4. On the other hand, the 2-methoxycarbonylvinylcarbene complex 2 reacts with Fe2(CO)9 to give a vinylcarbene binuclear complex 5 containing the vinylcarbene moiety co-ordinated to two iron atoms. The structure of 5 has been determined by single-crystal X-ray diffraction study.
HYDROXIDE ADDITION TO THE COBALT(III) MIXED LIGAND COMPLEX, (1,1,1,5,5,5-HEXAFLUOROACETYLACETONATO)BIS(ETHYLENEDIAMINE)COBALT(III) PERCHLORATE
Authors: Fukuda Yutaka , Ishige Masayoshi , Ito Tasuku , Kuroda Kashiro , Sone Kozo , Suzuki Yoshie , Yano Shigenobu , Yoshikawa Sadao 
Published: July 2006

Abstract
NMR studies revealed that the reaction of the title complex, [Co(hfac)(en)2] (ClO4)2 with OH− in an aqeous solution is the addition of OH− to the carbonyl carbon of coordinated hfac.
A STEREOSELECTIVE FORMATION OF (Z)-2-METHYL-2-ALKENOL BY THE WITTIG REACTION: ITS APPLICATION TO A SYNTHESIS OF NERYLACETONE AND (Z,Z)-FARNESYLACETONE
Authors: Sato Kikumasa , Miyamoto Osamu , Inoue Seiichi , Kobayashi Toru , Furusawa Fumio 
Published: July 2006

Abstract
The Wittig reaction of benzyloxyacetone or tetrahydropyranyloxyacetone with 4-pentynylidenetriphenylphosphorane in salt-free conditions followed by removal of the protecting group afforded (Z)-2-methylhept-2-en-6-yn-1-ol in 95–96 % stereoselectivity. After conversion of the allylic alcohol to the corresponding bromide, the latter was coupled with prenyl or neryl p-tolyl sulfone, followed by reductive desulfonation and hydration of the acetylenic bond, to give nerylacetone and (Z,Z) -farnesylacetone, respectively.
FLASH VACUUM PYROLYSIS OF 2-BENZYLPYRIDINE N-OXIDES. SYNTHESIS OF METHYLPYRIDO[1,2-a]INDOLES
Authors: Ohsawa Akio , Kawaguchi Takayuki , Igeta Hiroshi 
Published: July 2006

Abstract
Flash vacuum pyrolysis of 2-benzylpyridine N-oxides afforded pyrido[1,2-a]-indole and its various methyl-substituted derivatives in moderate yields. Benzo[g]quinoline in the pyrolyses of 2-(o-methylbenzyl)pyridine N-oxide and 2-benzyl-3-methylpyridine Noxide, and 2-(β-styryl)pyridine in the reaction of 2-(β-phenethyl)pyridine N-oxide were major products as exceptional cases.
ACTIVATION ENERGIES FOR HYDROGEN EVOLUTION REACTION AT LaM5-TYPE ALLOY ELECTRODES
Authors: Kitamura Tohru , Iwakura Chiaki , Tamura Hideo 
Published: July 2006

Abstract
The apparent activation energy for the cathodic evolution of hydrogen on LaM5-type alloys (M: Cr, Fe, Co, Ni) was found to be closely related to the heat of formation of their ternary hydrides. The large heats of formation of LaNi5 and LaCo5 were presumed to be the chief cause of the synergistic effect in hydrogen evolution reaction at the alloy electrodes.
4-CHLOROPHENYL 5-CHLORO-8-QUINOLYL PHOSPHOROCHLORIDATE: A PRACTICALLY USEFUL PHOSPHORYLATING AGENT FOR OLIGORIBONUCLEOTIDE SYNTHESIS VIA PHOSPHOTRIESTER APPROACH
Authors: Takaku Hiroshi , Yoshida Masatoshi , Kamaike Kazuo , Hata Tsuiiaki 
Published: July 2006

Abstract
5′-O-Dimethoxytrityl-2′-O-tetrahydropyranylnucleosides (2) smoothly reacts with 4-chlorophenyl 5-chloro-8-quinolyl phosphorochloridate (1) prepared from 4-chlorophenyl phosphodichloridate and 5-chloro-8-hydroxyquinoline to give 5′-O-dimethoxytrityl-2′-O-tetrahydropyranylnucleoside 3′-(4-chlorophenyl, 5-chloro-8–quinolyl) phosphates (3) in high yields. They are key intermediates for the synthesis of oligoribonucleotides via phosphotriester approach.
PHOTOCHEMICAL REACTION OF EPOXYNAPHTHOQUINONES WITH ALCOHOLS. AN IONIC TRAPPING OF CARBONYL YLIDES
Authors: Osuka Atsuhiro , Suzuki Hitomi , Maruyam Kazuhiro 
Published: July 2006

Abstract
Irradiation of several 2,3-dialkyl-2,3-epoxy-2,3-dihydro-1,4-naphthoquinones in the presence of alcohol gave ring-contracted alcohol-adducts via nucleophilic addition of alcohol to carbonyl ylides.
METHANE FORMATION FROM SOLID CARBON AND HYDROGEN BY THE USE OF PHYSICALLY MIXED CATALYSTS
Authors: Niiyama Hiroo , Sato Hiromi , Nakamura Ryuichi , Echigoya Etsuro 
Published: July 2006

Abstract
Methane formation from active carbon and H2 by the use of physically mixed metal on silica catalysts was investigated. Methane formation was found only in the initial several ten minutes, by the end of which oxygen-containing functional groups on the surface of active carbon had been depleted. The reactivity of carbon was regenerated by the contact with gaseous oxygen. It is concluded that hydrogen atoms, dissociated on metal surface and transferred to the carbon surface by interparticle spillover, react with surface functional groups to yield methane.
NEW, NONCYCLIC IONOPHORES EXHIBITING SELECTIVE CATION TRANSPORT AGAINST THE CONCENTRATION GRADIENT
Authors: Hiratani Kazuhisa 
Published: July 2006

Abstract
Some oligoethylene glycol derivatives containing both quinolyl and carboxyl terminal groups were prepared as synthetic ionophores. These polyethers can transport alkali ions selectively through liquid membrane against the concentration gradient. The rate of the active transport and the ion-selectivity with them change with changing the length of oxyethylene chain.
CYCLOADDITION REACTIONS OF 1,3-DIPHENYLTHIAZOLO[3,4-a]BENZIMIDAZOLE WITH FULVENE AND TROPONE SYSTEMS
Authors: Tsuge Otohiko , Shiraishi Hidehiko , Noguchi Michihiko 
Published: July 2006

Abstract
1,3-Diphenylthiazolo[3,4-a]benzimidazole (1) containing tetravalent sulfur reacts as a thiocarbonyl ylide dipole with 6,6-diphenylfulvene to give a mixture of two regioisomeric exo-[4 + 2] adducts and endo-[4 + 2] adduct. The reaction of 1 with tropone and 8,8-dicyanoheptafulvene proceeds via a [4 + 2] cycloaddition to the C4–C5and C1–C2 bond of the addend to afford the exo-adduct and desulfurized compound respectively.
β-LACTAM AS SYNTHETIC INTERMEDIATE. A NEW SYNTHETIC APPROACH TO OLIGOPEPTIDES THROUGH NOVEL β-LACTAMS
Authors: Hatanaka Naoto , Ojima Iwao 
Published: July 2006

Abstract
Synthetic method of a new class of β-lactams, which have two β-lactams in a single molecule, was established and subsequent cleavage upon hydrogenolysis by the use of palladium catalyst gave tri- or tetrapeptides, thus providing a new approach to oligopeptides.
CYCLOADDITION REACTIONS OF ARYL 2-FURYL THIONES AND ARYL 2-THIENYL THIONES WITH MALEIC ANHYDRIDE AND 2-NORBORNENE
Authors: Ohmura Haruo , Motoki Shinichi 
Published: July 2006

Abstract
The reactions of aryl 2-furyl thiones with maleic anhydride and 2-norbornene gave 1,4-cycloadducts. The reactions of aryl 2-thienyl thiones with maleic anhydride gave aromatized and oxidized 1,4-cycloadducts, while the reaction with 2-norbornene gave only normal 1,4-cycloadducts. In these reactions, one of the double bond in the furan or thiophene ring and the thiocarbonyl group reacted as a hetero diene system.
CARBON–SILICON BOND CLEAVAGE OF ORGANOTRIALKOXYSILANES AND ORGANOSILATRANES WITH m-CHLOROPERBENZOIC ACID AND N-BROMOSUCCINIMIDE. NEW ROUTE TO PHENOLS, PRIMARY ALCOHOLS AND BROMIDES
Authors: Hosomi Akira , Iijima Susumu , Sakurai Hideki 
Published: July 2006

Abstract
Alkyl- and aryltriethoxysilanes undergo oxidative carbon–silicon bond cleavage smoothly with m-chloroperbenzoic acid (MCPBA) to afford the corresponding alcohols. Silatranes similarly gave alcohols and bromides with MCPBA and N-bromosuccinimide, respectively.
SYNTHESIS OF TRANS-4,8,12,15,15-PENTAMETHYLBICYCLO[9,3,1]PENTADECA-3E,7Z,12Z-TRIENE, A GEOMETRICAL ISOMER OF ANHYDROVERTICILLOL
Authors: Kumagai Takashi , Ise Fumiaki , Uyehara Tadao , Kato Tadahiro 
Published: July 2006

Abstract
A 7Z-isomer of anhydroverticillol skeleton was constructed in 15% yield when the 7E allyl bromide having secoverticillol framework was treated with LiN(TMS)2. Reductive removal of the SO2Ph group furnished a geometrical isomer of anhydroverticillol.
UNUSUAL CYCLOADDITIONS OF 4-PHENYL-1,2,4-TRIAZOLIN-3,5-DIONE TO ENDO- AND EXO-TRICYCLO[3.2.1.02,4]OCT-6-ENES
Authors: Erden Ihsan 
Published: July 2006

Abstract
4-Phenyl-1,2,4-triazolin-3,5-dione readily cycloadds to endo- and exo-tricyclo[3.2.1.02,4]oct-6-enes to give Δ1-1,2-diazetines besides skeletally rearranged products. All adducts can be converted to the respective azo compounds which exhibit some unusual thermal and photochemical behavior.
A CONVENIENT METHOD FOR THE SYNTHESIS OF CARBOXAMIDES AND PEPTIDES BY THE USE OF TETRABUTYLAMMONIUM SALTS
Authors: Watanabe Yutaka , Mukaiyama Teruaki 
Published: July 2006

Abstract
Various carboxamides and peptides are prepared in good yields by treatment of free acids and amines in H2O-dichloromethane or aqueous THF with bis(o-nitrophenyl) phenylphosphonate in the presence of tetrabutylammonium hydrogen sulfate or bromide. Carboxylic esters are also successfully converted to amides via carboxylate salts in one-pot.
SYNTHESIS OF 9-AZAAZULENO[2,1-b]THIOPHENES
Authors: Yamane Kameji , Fujimori Kunihide , Takeuchi Toru 
Published: July 2006

Abstract
9-Azaazuleno[2,1-b]thiophene and its derivatives were synthesized from 2-chloro-3-ethoxycarbonyl- or 2-chloro-3-formyl-1-azaazulene in a few steps.
PHOTO- AND RADIATION-INDUCED ALCOHOLYSIS AND SUBSTITUTION OF p-DICYANOBENZENE IN 2-PROPANOL
Authors: Sugimori Akira , Nishijima Masayuki , Yashima Toshihiro 
Published: July 2006

Abstract
The irradiation of p-dicyanobenzene with 254 nm light in 2-propanol causes the alcoholysis of CN group to give isopropyl p-cyanobenzimidate. The UV-irradiation in the presence of acetone or γ-irradiation brings about the substitution of a cyano group by the hydroxyalkyl group derived from the alcohol. The substitution occurs via the electron transfer from hydroxyalkyl radicals or electrons followed, by the attack of hydroxyalkyl radicals.
EXCEPTIONAL HINDRANCE OF INTERNAL ROTATION OF HYDROXYL GROUP IN THE 2,6-Di-t-BUTYL-4-METHYLPHENOL CATION RADICAL STUDIED BY ESR TECHNIQUE
Authors: Nemoto Fujito , Mukai Kazuo , Tsuzuki Noriko , Ishizu Kazuhiko 
Published: July 2006

Abstract
ESR spectrum of 2,6-di-t-butyl-4-methylphenol cation radical was measured. In this radical, it can be expected that the strong steric repulsion between hydroxyl group and the neighboring t-butyl groups prevents hydroxyl group being coplanar with the aromatic plane. Nevertheless, the experimental results exhibit that the hydroxylic hydrogen is close to the plane of aromatic ring.
SYNTHESIS OF (−)-DIHYDROMAHUBANOLIDE B AND (−)-ISODIHYDROMAHUBANOLIDE B
Authors: Tanaka Akira , Yamashita Kyohei 
Published: July 2006

Abstract
The total synthesis of (−)-dihydromahubanolide B and (−)-isodihydromahubanolide B isolated from the Amazonian Lauraceae Licariamahuba (Samp.) Kosterm was achieved starting from (−)-methyl 5-hydroxy methyl -2,2-dimethyl-1,3-dioxolane-4-carboxylate which was readily available from L-(+)-tartaric acid.
PREPARATION AND REACTION OF THE UNSYMMETRICAL-FACIAL ISOMERS OF THE BIS(N-ALKYLIMINODIACETATO)COBALTATE(III) IONS
Authors: Ama Tomoharu , Kawaguchi Hiroshi , Yasui Takaji 
Published: July 2006

Abstract
The u-fac isomers of the bis(N-methyliminodiacetato)cobaltate(III) ([Co(mida)2]−), and bis(N-ethyliminodiacetato)cobaltate(III) ([Co(eida)2]−), which have large steric compression, were newly prepared and characterized on the basis of the electronic absorption and circular dichroism spectral data. The first absorption maxima of these complexes are shifted to the lower energy side than that of the u-fac-[Co(ida)2]−. In basic aqueous solution, the u-fac-[Co(mida)2]− and -[Co(eida)2]− were reduced to Co(II) complexes.
X-RAY DIFFRACTION STUDY OF LIQUID METHANOL
Authors: Tanaka Masami , Nishikawa Keiko , Fujiyama Tsunetake 
Published: July 2006

Abstract
X-ray diffraction intensity measurements of liquid methanol were carried out by use of an energy-dispersive X-ray diffractometer. No apparent maximum due to hydrogen bonded oxygen–oxygen interference was detected in the electronic distribution function. Our diffraction intensity curve and distribution function are consistent with Harvey’s results, but in contradiction to those of Wertz and Kruh.
DIMETHYLBENZOPYRAZOLOTRIAZOLE vs METHYLPYRAZOLOQUINOXALINE FROM 3,5-DIMETHYL-1-(2-NITRENOPHENYL)PYRAZOLE
Authors: Albini Angelo , Bettinetti Gian Franco , Minoli Giovanna 
Published: July 2006

Abstract
The chemistry of singlet and triplet 3,5-dimethyl-1-(2-nitrenophenyl)pyrazole is examined. Intramolecular electron transfer is found to play a key role in determining the easy reaction to the ylide (VII) from the singlet state and the “lazyness” of the triplet state.
PHOTOCHEMICAL DIRECT ALKYLAMINATION OF 1-BENZAMIDOANTHRAQUINONE
Authors: Yoshida Katsuhira , Okugawa Tetsuo , Yamashita Yoshio 
Published: July 2006

Abstract
The photochemical reaction of 1-benzamidoanthraquinone with primary aliphatic amines in aerated benzene leads to the formation of 1-benzamido-4-(alkylamino)anthraquinones in 58–64% yields.
DOUBLE BOND MIGRATION OF ALLYL ETHERS OVER SOLID BASE CATALYSTS
Authors: Matsuhashi Hiromi , Hattori Hideshi , Tanabe Kozo 
Published: July 2006

Abstract
Double bond migrations of allyl ethers were carried out over various solid base catalysts. Magnesium oxide, CaO, SrO, and La2O3 exhibited high activities. High cis/trans ratios in the products suggest that the reaction proceed via cis-π-allylic anions as intermediates.
SYNTHESIS OF PENTALENIC ACID THROUGH BIOGENETIC LIKE CYCLIZATION OF HUMULENE
Authors: Sakai Kazuya , Ohtsuka Toshikazu , Misumi Shunjiro , Shirahama Haruhisa , Matsumoto Takeshi 
Published: July 2006

Abstract
Humulene furnished 4,7-epoxy-3-methylene-7,10,10-trimethyl-11-bicyclo[6,3,0]undecanol 9 in 34% yield employing oxymercuration as a key step. On treatment with BF3·OEt2,7,11-dihydroxy-3,7,10,10-tetramethyl-3-bicyclo[6.3.0]undecene, which was derived from 9 by ether cleavage, afforded 10α-hydroxypentalenene 13 (20%) along with four byproducts. Oxidation of allylic methyl group of 13 gave methyl pentalenate in 13% yield from 9.
ISOLATION OF ALL THE FIVE GEOMETRICAL AND CONFORMATIONAL ISOMERS OF BIS(ISOTHIOCYANATO)(TRIETHYLENETETRAMINE)COBALT(III) COMPLEX
Authors: Sakai Yukio , Nokami Yusei , Kanno Hideaki , Utsuno Shunji 
Published: July 2006

Abstract
All the five geometrical and conformational isomers of bis(isothiocyanato)(triethylenetetramine)cobalt(III) ion were isolated. Each isomer was identified on the basis of its chemical properties, 13C NMR spectrum and absorption spectrum.
UNUSUAL FRIEDEL-CRAFTS REACTION OF 2,5-DICHLORO-3-CHLOROMETHYLTHIOPHENE WITH BENZENE AND SOME ALKYLBENZENES
Authors: Sone Tyo , Kawasaki Hidenori , Nagasawa Shoji , Takahashi Norio , Tate Kiyoshi , Sato Kazuaki 
Published: July 2006

Abstract
The reaction of 2,5-dichloro-3-chloromethylthiophene with benzene and some alkylbenzenes in the presence of aluminum chloride yielded the unusual 4-aryl-3-arylmethyl-2-chlorothiophenes as the major products.
CYCLODIMERIZATION OF 3-METHYL-3-BUTEN-2-ONE OXIME
Authors: Ota Tadatoshi , Masuda Seizo , Tanaka Hitoshi 
Published: July 2006

Abstract
Nitron derivative, 8-hydroxy-1,4,5,7-tetramethyl-6,8-diazabicyclo [3.2.1]oct-6-ene 6-oxide, was obtained by the cyclodimerization of 3-methyl-3-buten-2-one oxime at 80 °C. This nitron was easily converted into the stable nitroxy radical by the attack of poly(N-methylacrylamide) radical.
FREE RADICAL ADDITION OF α-BROMOCARBOXYLIC ACIDS TO OLEFINS LEADING TO γ-BUTYROLACTONES
Authors: Nakano Taichi , Kayama Mikio , Matsumoto Hideyuki , Nagai Yoichiro 
Published: July 2006

Abstract
Benzoyl peroxide-catalyzed free radical addition of bromoacetic, α-bromopropionic, and α-bromobutyric acids to olefins took place under mild conditions to afford γ-alkyl-, γ-alkyl-α-methyl-, and γ-alkyl-α-ethyl-γ-butyrolactones in good yields.
A GENERAL SYNTHETIC METHOD OF 1,2-DIHYDROCYCLOBUTA[c]COUMARIN AND ITS 1-SUBSTITUTED DERIVATIVES
Authors: Naito Toshihiko , Nakayama Nayomi , Kaneko Chikara 
Published: July 2006

Abstract
4-Methoxycoumarin reacts photochemically with ethylene and its substituted derivatives to form 8b-methoxy-1,2,2a,8b-tetrahydrocyclobuta [c]coumarin and its 1-substituted derivatives, which in turn eliminate methanol by boron trifluoride etherate in benzene to give the corresponding 1,2-dihydrocyclobuta[c] coumarins in high overall yields.
ONE-STAGE α-GLUCOSYLATION USING TETRA-O-BENZYL-α-d-GLUCOSE AND MIXTURE OF TRIMETHYLSILYL BROMIDE, COBALT(II) BROMIDE, TETRABUTYLAMMONIUM BROMIDE, AND MOLECULAR SIEVE
Authors: Morishima Naohiko , Koto Shinkiti , Kusuhara Chiharu , Zen Shonosuke 
Published: July 2006

Abstract
The one-stage α-glucosylation using 2,3,4,6-tetra-O-benzyl-α-d-glucopyranose and a mixture of trimethylsilyl bromide, cobalt(II) bromide, and tetrabutylammonium bromide in the presence of molecular sieve is presented.
AN EFFICIENT METHOD FOR GLUCOSYLATION OF HYDROXY COMPOUNDS USING GLUCOPYRANOSYL FLUORIDE
Authors: Mukaiyama Teruaki , Murai Yoshiyuki , Shoda Shin-ichiro 
Published: July 2006

Abstract
Glucosides and disaccharides are prepared in good yields from 2,3,4,6-tetra-O-benzyl-β-d-glucopyranosyl fluoride and hydroxy compounds in the presence of stannous chloride and silver perchlorate. In most cases, α-glucosides are predominantly (α⁄β=80⁄20∼92⁄8) obtained.
CLEAVAGE OF CYCLOPROPANE RING VIA PHOTOINDUCED ELECTRON-TRANSFER BY THE USE OF COPPER(II) IONS
Authors: Mizuno Kazuhiko , Ogawa Jun , Kagano Hirokazu , Otsuji Yoshio 
Published: July 2006

Abstract
Irradiation of a methanolic solution of phenylcyclopropane in the presence of copper(II) ions affords 1,3-dimethoxy-1-phenylpropane and meso- and dl-1,6-dimethoxy-3,4-diphenylhexanes in good yields through the electron-transfer from the excited cyclopropane to Cu(II) ions.
SYNTHESIS OF TUNGSTEN ALKOXY-HYDRAZIDO(2−) COMPLEXES WITH TRANSITION METAL CARBONYL COMPLEX ANION
Authors: Nishihara Hiroshi , Saito Taro , Sasaki Yukiyoshi 
Published: July 2006

Abstract
The dinitrogen complex trans-[W(N2)2(dpe)2] (dpe = 1,2-bis(diphenylphosphino)ethane) reacted with HCo(CO)4 or HFeCo3(CO)12 in the presence of alcohols to give alkoxy-hydrazido(2−) complexes, [W(OR)(NNH2)(dpe)2]+[A]− (A = Co(CO)4, R = CH3, C2H5; A = Co3(CO)10, R = CH3; A = FeCo3(CO)12, R = CH3, C2H5, n-C3H7).
CRYSTAL STRUCTURE OF (DIETHYLENETRIAMINE) (l-PENICILLAMINATO)COBALT(III) CHLORIDE
Authors: Okamoto Ken-ichi , Wakayama Katsuhiko , Ohmasa Masaaki , Hidaka Jinsai 
Published: July 2006

Abstract
Three isomers of (diethylenetriamine)(l-penicillaminato)cobalt(III) complex were chromatographically isolated. The crystal structure of the first eluted isomer, trans(NiN)-[Co(l-pen) (dien)]Cl·H2O, was determined by X-ray diffraction study. Electronic absorption and circular dichroism spectra of the isomer are also reported.
MIS SCHOTTKY BARRIER PARAMETERS OF AL/MESO-TBTRAPHENYLPORPHINATOMAGNESIUM(II)/Ag CELL
Authors: Yamashita Kazuo , Kihara Nobuo 
Published: July 2006

Abstract
Integral capacitance measurements of Al/meso-tetraphenylporphinatomagnesium(II)/Ag cells, where the Al and porphyrin are separated by a thin A12O3 film, have been made by thecapacitor discharge method. The 1/Ci vs. Q plots yield a good straight line. The apparent diffusion potential Vo estimated from the slope and the 1/Ci. axis intercept is in the range 0.8–1.3 volts. The derived values for the barrier width Wo and the density ofionized impurity N are 11–17 nm and 1.2–1.6×1018 cm−3.
MONOMER-DIMER EQUILIBRIUM AND PHOTOCHEMICAL BEHAVIORS OF THE 1-METHYL-4-PHENYLPYRIDINYL RADICAL
Authors: Akiyama Kimio , Kubota Shozo , Ikegami Yusaku 
Published: July 2006

Abstract
A neutral free radical, 1-methyl-4-phenylpyridinyl radical, can be isolated by distillation under a vacuum. Equilibrium between the radical and the diamagnetic radical dimer, photochemical dissociation of the dimer with visible light, and photochemical decomposition of the radical with ultraviolet light to generate the phenyl radical have been demonstrated.