bluuebunny/crossref_metadata_2025_split huggingface dataset:
A FACILE METHOD FOR THE STEREOSELECTIVE PREPARATION OF ACYCLIC syn-1,3-AMINO ALCOHOLS FROM β-HYDROXY KETONES
Authors: Narasaka Koichi , Yamazaki Shigeru , Ukaji Yutaka 
Published: July 2006

Abstract
Treatment of acyclic β-hydroxy ketones with O-benzylhydroxylamine hydrochloride gave a mixture of stereoisomers of the corresponding O-benzyloximes. The mixture of the both isomers was reduced with lithium aluminum hydride in the presence of sodium or potassium methoxide to afford syn-1,3-amino alcohols in a highly stereoselective manner.
PHOTOCHEMICAL REACTIONS OF NAPHTHALENEDICARBOXIMIDES. EFFECT OF ARENE STRUCTURE IN IMIDE COMPOUNDS ON REACTION WITH OLEFINS
Authors: Kubo Yasuo , Tojo Sachiko , Suto Manami , Toda Rie , Araki Takeo 
Published: July 2006

Abstract
Photolyses of N-methylnapathalenedicarboximides (1,8-NI, 2,3-NI, and 1,2-NI) with various olefins were investigated in benzene. The reaction pathways depended largely on the structure of arene moiety of the imides. The main reactions of 1,8-NI, 2,3-NI, and 1,2-NI were found as cyclobutane formation, oxetane formation, and insertion of olefin between the C(=O)–N bond of imide moiety, respectively.
COMPLEX FORMATION OF CYCLODEXTRINS IN ALCOHOL SOLUTIONS
Authors: Harada Akira , Takahashi Shigetoshi 
Published: July 2006

Abstract
β-Cyclodextrin(β-CD) was found to form inclusion complexes in ethylene glycol, diethylene glycol, triethylene glycol, 2-methoxyethanol, 2-ethoxyethanol, methanol, and glycerine solutions. γ-CD also formed complexes in ethylene glycol solution. The binding of ferrocene by β-CD is stronger in ethylene glycol than in dimethyl sulfoxide and dimethyl formamide.
PHOTOCHEMICAL C–P BOND CLEAVAGE OF (p-NITOROPHENYL)METHYLPHOSPHONIC ACID
Authors: Okamoto Yoshiki , Iwamoto Narimasa , Takamuku Setsuo 
Published: July 2006

Abstract
(p-Nitrophenyl)methylphosphonic acid underwent easily photochemical C–P bond cleavage in alkaline 80% ethanol solution, resulting in the formation of p-nitrotoluene, orthophosphate, and ethyl phophate. In acidic solution, the phosphonic acid was stable on irradiation.
SYNTHESIS AND UNAMBIGUOUS CHARACTERIZATION OF OPTICALLY PURE (+)-4-DEMETHOXYADRIAMYCIN HYDROCHLORIDE
Authors: Kimura Yoshikazu , Suzuki Michiyo , Terashima Shiro 
Published: July 2006

Abstract
The title compound showing mp 226–229 °C(decomp) and [α]D20 +190°(CH3OH) was synthesized by two different synthetic routes and fully characterized by its spectral properties. These studies suggested that the compound previously claimed to be 4-demethoxyadriamycin hydrochloride, mp 186–188 °C(decomp), might be (+)-14-formyloxy-4-demethoxydaunorubicin hydrochloride.
COPPER SITE OF NITRITE REDUCTASE FROM ALCALIGENES SP. STRUCTURAL EVIDENCE FROM X-RAY ABSORPTION SPECTROSCOPY
Authors: Sano Mitsuru , Matubara Teruo 
Published: July 2006

Abstract
The EXAFS study has been carried out for the copper site of nitrite reductase from Alcaligenes sp. The curve-fitting results showed that the copper site has N2S with Cu–N=1.97 and Cu–S=2.17 Å.
A MILD CYCLIZATION OF 2-AMINOALCOHOLS TO AZIRIDINES USING DIPHOSPHORUS TETRAIODIDE
Authors: Suzuki Hitomi , Tani Hiroyuki 
Published: July 2006

Abstract
The reaction of 2-aminoalcohols with diphosphorus tetraiodide in benzene at room temperature leads to the corresponding aziridines in good to moderate yields.
A CONVENIENT SYNTHESIS OF γ-ACYL- AND RELATED δ-LACTONES
Authors: Kato Michiharu , Saito Hiroaki , Yoshikoshi Akira 
Published: July 2006

Abstract
γ-Acyl- and related δ-lactones having no 6 substituents were synthesized in a sequence of reactions, 1,4-conjugate additions of sulfurstabilized acetate anions to α,β-unsaturated ketones, followed by trapping of the resultant ketone enolates with formaldehyde, mild lactonization, and desulfurization.
PREPARATION AND CHARACTERIZATION OF AN OCTOPUS AZAPARACYCLOPHANE AS A HOST FOR VARIOUS HYDROPHOBIC GUEST MOLECULES
Authors: Mirakami Yukito , Kikuchi Jun-ichi , Suzuki Masashi , Takaki Toshihiko 
Published: July 2006

Abstract
An octopus azaparacyclophane bearing eight hydrophobic chains, N,N′,N″,N'″-tetrakis[2-[N-[1-(N,N-ditetradecylcarbamoyl)-5-ammonio-1-pentyl]carbamoyl]ethyl]-3,10,21,28-tetraoxo-2,11,20,29-tetraaza[3.3.3.3]paracyclophane tetrachloride [APC(C2Lys2C14)4], was prepared and its substrate-binding behavior was examined in comparison with that of related azaparacyclophanes.
NONSELECTIVE DISPROPORTIONATION OF ISOMERIC HYDROXYCYCLOHEXADIENYL RADICALS TO PHENOLS
Authors: Tezuka Takahiro , Marusawa Hiroshi , Ichikawa Kazuhiko 
Published: July 2006

Abstract
Comparison of the isomer ratios and yields of cresol, methoxyphenol, and nitrophenol, which were obtained by the aromatic hydroxylation with hydroxyl radical in the presence or absence of benzoquinones in anhydrous media, indicates that disproportionation of hydroxycyclohexadienyl radicals occurs nonselectively.
REMARKABLE CATALYTIC ACTIVITY OF THERMALLY MODIFIED CoTPP SUPPORTED ON TiO2 FOR NO-CO REACTION
Authors: Mochida Isao , Iwai Yasuo , Fujitsu Hiroshi 
Published: July 2006

Abstract
CoTPP supported on fine TiO2-120s pretreated by the evacuation at 250 °C exhibited a remarkable activity, 2.2 mol NO/mol Co.min, for the reduction of NO with CO at 100 °C. The pretreatment modified the structures of CoTPP to be insoluble in benzene but still soluble in quinoline. Such an activity is assumed to originate from the thermally-modified CoTPP of dimeric form with major loss of phenyl groups interacting more favorably with the properly dehydrated support.
DYNAMIC TRANSFORMATION OF THE MORPHOLOGY OF DIALKYLAMMONIUM BILAYER AGGREGATES
Authors: Nakashima Naotoshi , Asakuma Sumitoshi , Kunitake Toyoki , Hotani Hirokazu 
Published: July 2006

Abstract
Optical and electron microscopies showed dynamic morphological changes of the aqueous bilayer aggregate of dialkylammonium salts among large vesicles, fibers and small vesicles.
HIGHLY ENANTIOSPECIFIC AND ERYTHRO-SELECTIVE [2,3]-WITTIG REARRANGEMENT OF ENANTIOMERICALLY-ENRICHED ALLYLIC BENZYL ETHERS. A NEW, FORMAL CHIRAL SYNTHESIS OF l-EPHEDRINE
Authors: Sayo Noboru , Kitahara Ei-ichiro , Nakai Takeshi 
Published: July 2006

Abstract
The [2,3]-Wittig rearrangement of chiral (Z)-allylic benzyl ethers provides 94–97% of asymmetric transfer (enantiospecificity), along with 90–96% of erythroselectivity. Its synthetic potential is illustrated through the stereocontrolled synthesis of an optically-active precursor of l-ephedrine.
ISOLATION AND IDENTIFICATION OF THE MALE SEX PHEROMONE OF THE GRAPE BORER XYLOTRECHUS PYRRHODERUS BATES (COLEOPTERA: CERAMBYCI DAE)
Authors: Sakai Tsutomu , Nakagawa Yoshiko , Takahashi Jiro , Iwabuchi Kikuo , Ishii Kenji 
Published: July 2006

Abstract
The sex pheromone of grape borer, Xylotrechus pyrrhoderus Bates, was isolated from body extracts and container washings of male insects, and was determined to be a mixture of (2S,3S)-octanediol (1) and (2S)-hydroxy-3-octanone (2). Each compound showed special response in electroantennogram experiments. The females were attracted by 80:20 to 95:5 mixtures of 1 and 2. This is the first time that the male sex pheromone from Cerambycidae species has been isolated and determined.
PHOTOOXIDATION OF MONOSACCHARIDES WITH METAL CATALYSIS. OXIDATION WITH ATMOSPHERIC OXYGEN BY COUPLING WITH THE OXIDATION-REDUCTION CYCLE OF METAL IONS
Authors: Araki Koji , Shiraishi Shinsaku 
Published: July 2006

Abstract
d-Fructose was oxidatively degraded to d-erythrose by atmospheric oxygen with irradiation of a Pyrex-filtered light in the presence of catalytic amount of FeCl3 at near neutral pH range. The reaction proceeded by coupling with the oxidation-reduction cycle of iron ion. d-Glucose-FeCl3 and d-fructose-MnCl2 systems were also found to be susceptible to the catalytic photooxidation.
INTRAMOLECULAR 1,3-DIPOLAR CYCLOADDITIONS TO A FURAN RING
Authors: Tsuge Otohiko , Ueno Kazunori , Kanemasa Shuji 
Published: July 2006

Abstract
1,3-Dipolar systems derived from o-(2-furylmethyloxy)benzaldehyde undergo an intramolecular cycloaddition to the furan ring, giving the corresponding cycloadducts; this provides the first example for the intramolecular 1,3-dipolar cycloaddition to a furan ring.
23Na CHEMICAL SHIFTS OF SOME INORGANIC AND ORGANIC COMPOUNDS IN THE SOLID STATE AS DETERMINED BY THE MAGIC ANGLE SPINNING AND HIGH POWER NMR METHODS
Authors: Tabeta Ryoko , Saito Hazime 
Published: July 2006

Abstract
23Na chemical shifts and linewidths of some inorganic and organic salts were examined by magic angle spinning and high power NMR methods. We found that 23Na linewidths are considerably narrowed when magic angle spinning was employed. Displacements of 23Na chemical shifts were also discussed.
OXIDATION OF COORDINATED DITHIOCARBAMATE AND 2-PYRIDINETHIOLATE; SYNTHESIS AND CHARACTERIZATION OF [Co(N,N-DIMETHYLAMINOTHIOXO-METHANESULFINATO-S,O)(en)2]2+ AND [Co(2-PYRIDINESULFENATO-S,N OR-O-N)(en)2]2+ COMPLEXES
Authors: Kita Masakazu , Yamanari Kazuaki , Shimura Yoichi 
Published: July 2006

Abstract
The H2O2 oxidation of [Co(N,N-dimethyldithiocarbamato-S,S′)(en)2]2+ and [Co(2-pyridinethiolato-S,N(en)2]2+ in acid media gave the novel complexes [Co (N,N-dimethylaminothioxomethanesulfinato-S,O)(en)2]2+ and [Co(2-pyridinesulfenato-S,N)(en)2]2+, respectively. The latter S,N-chelated isomer was photochemically converted into the O,N-chelated linkage-isomer [Co(2-pyridinesulfenato-O,N)(en)2]2+, accompanying ring-expansion from a four- to five-membered chelate ring. These complexes were characterized by the absorption, circular dichroism, and X-ray photoelectron spectra.
FACILE CONVERSION OF 1,3-DISUBSTITUTED THIOUREAS TO THE CORRESPONDING UREAS BY SUPEROXIDE RADICAL ANION (O2·−) IN DIMETHYL SULFOXIDE
Authors: Kim Yong Hae , Yon Gyu Hwan , Kim Hyung Jin 
Published: July 2006

Abstract
Treatment of 1,3-disubstituted thioureas with superoxide radical anion (O2·−) at 20 °C in dimethyl sulfoxide resulted in the formation of 1,3-disubstituted ureas in excellent yields. The desulfurization appears to proceed by the formation of peroxy-sulfur intermediates such as peroxy-sulfenate, -sulfinate and/or -sulfonate.
PHOTOELECTRON SPECTRA OF DIARYLDIPHOSPHENES
Authors: Gleiter Rolf , Friedrich Gert , Yoshifuji Masaaki , Shibayama Katsuhiro , Inamoto Naoki 
Published: July 2006

Abstract
The He(I) photoelectron (PE) spectra of bis(2,4,6-tri-t-butylphenyl)diphosphene and mesityl(2,4,6-tri-t-butylphenyl)diphosphene are reported. An interpretation based on semiempirical calculations and comparison with other data is suggested.
CRYSTAL STRUCTURE OF HOFMANN-DMA-TYPE BENZENE CLATHRATE BIS(DIMETHYLAMINE)CADMIUM(II) TETRACYANONICKELATE(II)-BENZENE (2/1)
Authors: Nishikiori Shin-ichi , Iwamoto Toschitake 
Published: July 2006

Abstract
The title clathrate Cd(NH(CH3)2)2Ni(CN)4·\frac12C6H6 has a layered host structure of metal complex network [CdNi(CN)4]∞ linked by the CN ligands and the benzene molecule is enclathrated in a cage-like cavity formed between the layers. The channel-like cavity, observed along with the cage-like one for the Hofmann-dma-type toluidine clathrates, is collapsed owing to the fold of the layers to minimize void space.
ON THE PECULIAR REACTIVITIES OF N(5)-HYDROGEN-BONDED FLAVIN. A MODEL APPROACH TO FLAVIN ACTIVATION THROUGH HYDROGEN-BONDING
Authors: Shinkai Seiji , Honda Noriaki , Ishikawa Yuichi , Manabe Osamu 
Published: July 2006

Abstract
A new flavin with hydrogen-bonded N(5) (OHFl: sodium 1′-hydroxybenzo[2′, 3′-h]-10-methylisoalloxazine-5′-sulfate) was synthesized. The reactivity for NADH model compounds was similar to that of 3-methyllumiflavin(MeLFl), whereas the rate constants for the reactions with thiols were enhanced by 33–645 fold. The result implies that OHF1 is “specifically” active towards thiol oxidation, the reaction involving 4a-intermediates. Thus, OHFl can mimick part of the hydrogen-bond-dependent activation mechanism of flavoproteins.
ISOLATION AND STRUCTURE OF A NEW NATURAL CYCLOHEXADIENONE DERIVATIVE, WASABIDIENONE-A, FROM POTATO CULTURE SOLUTION OF PHOMA WASABIAE YOKOGI
Authors: Soga Osamu , Iwamoto Hidetoshi , Date Satoru , Watanabe Takeshi , Tanaka Kazuhiko , Hata Kuniharu , Takuwa Akio , Nakayama Mitsuru 
Published: July 2006

Abstract
A yellow pigment isolated from the title solution is proposed to be a tautomeric mixture of 3-hydroxy-5-methoxy-2,6-dimethyl-6-(2-methylbutyryloxy)-2,4-cyclohexadien-1-one and 3-hydroxy-5-methoxy-2,4-dimethyl-4-(2-methylbutyryloxy)-2,5-cyclohexadien-1-one on the basis of methylation experiment which give two products corresponding to both forms.
STRUCTURE OF (6-METHYL-6-(4-AMINO-2-AZA-BUTYL)-1,4-DIAZACYCLOHEPTANE)(ETHYLENEDIAMINE)COBALT(III) PERCHLORATE AND CORRELATION BETWEEN Co–N BOND LENGTH AND POSITION OF ABSORPTION MAXIMUM IN [Co(N)6] COMPLEXES
Authors: Sakaguchi Ushio , Tomioka Kanji , Yoneda Hayami 
Published: July 2006

Abstract
The structure of the title compound, [Co(C9H22N4)(C2H8N2)](ClO4)3, has been determined by X-ray techniques. The correlation between the λmax values in the absorption spectra and the average Co–N lengths in [Co(N)6] complexes has been used to explain the large red-shift in the absorption spectrum of this compound.
HYDROBORATION OF ALKENES AND ALKYNES WITH SODIUM BOROHYDRIDE CATALYZED BY TITANIUM COMPLEX
Authors: Lee Hyung Soo , Isagawa Kakuzo , Otsuji Yoshio 
Published: July 2006

Abstract
The titanium complex prepared from Cp2TiCl2 and NaBH4 in THF in the presence of crown ethers efficiently promotes the catalytic hydroboration of alkenes and alkynes with NaBH4 to give sodium alkyl- and alkenyl-borohydrides which are converted into alcohols and alkenes, respectively.
REACTION OF N-BENZYLOXYIMINES WITH LITHIATED ALKYL CARBOXYLATES. CONVENIENT SYNTHESIS OF N-BENZYLOXY-β-LACTAMS
Authors: Ikeda Kiyoshi , Yoshinaga Yumiko , Achiwa Kazuo , Sekiya Minoru 
Published: July 2006

Abstract
N-Benzyloxyimines have been shown to react with lithiated carboxylic esters to give N-benzyloxy-β-lactams in moderate to good yields.
A NEW METHOD OF β-KETO ALKYL CHAIN INTRODUCTION INTO 1,4-NAPHTHOQUINONE
Authors: Maruyama Kazuhiro , Otsuki Tetsuo , Tai Seiji 
Published: July 2006

Abstract
Photochemical reaction of 2,3-disubstituted 1,4-naphthoquinone with 2-methoxy-1-alkene and subsequent hydrolysis afforded 2-(2-alkanonyl)-1,4-naphthoquinone derivatives.
THE MICHAEL REACTION OF SIMPLE ESTER ENOLATES TO α,β-UNSATURATED ESTERS
Authors: Yamaguchi Masahiko , Tsukamoto Michinori , Hirao Ichiro 
Published: July 2006

Abstract
Lithium enolates generated from simple esters are found readily to add to α,β-unsaturated esters at −78 °C and glutarates are obtained in high yield.
RHODIUM CATALYZED REDUCTION OF ARYL IODIDES WITH A MODEL OF NAD(P)H
Authors: Yasui Shinro , Nakamura Kaoru , Ohno Atsuyoshi 
Published: July 2006

Abstract
Aryl iodides are reduced to the corresponding arenes with a model of NAD(P)H, 1-benzyl-1,4-dihidronicotinamide (BNAH), in the presence of a catalytic amount of rhodium complex. Nitro, carbonyl, and ester functions are inert under the condition.
INFRARED STUDY ON THE C≡P STRETCHING VIBRATION OF 1-PHOSPHAPROPYNE CH3C≡P AND ITS PERDEUTERIUM ANALOG CD3C≡P
Authors: Ohno Keiichi , Yamamoto Yasumasa , Matsuura Hiroatsu , Murata Hiromu 
Published: July 2006

Abstract
Unstable molecule 1-phosphapropyne was detected by gas-phase infrared spectroscopy and the vibration-rotation band of the C≡P stretching was analyzed for CH3C≡P and CD3C≡P.
ACTIVATION OF COBALT(III)-ALKYL BONDS THROUGH INTERACTION WITH ORGANIC OXIDANTS AND THE CATALYTIC EFFECT OF Mg2+ ION ON ALKYL TRANSFER REACTIONS FROM cis-DIALKYLCOBALT(III) COMPLEXES TO p-BENZOQUINONE DERIVATIVES
Authors: Fukuzumi Shunichi , Ishikawa Kunio , Tanaka Toshio 
Published: July 2006

Abstract
Alkyl transfer reactions from cis-dialkylcobalt (III) complexes, [R2Co(bpy)2]ClO4 (R = Me and Et; bpy = 2,2′-bipyridine), to p-benzoquinone derivatives in acetonitrile occurred in the presence of Mg(ClO4)2 which showed a remarkable catalytic effect. Formation of charge-transfer complexes between [R2Co(bpy)2]+ and p-benzoquinone derivatives is also reported.
STEREOSELECTIVE HYDROLYSIS OF AMINO ACID ESTERS IN MODIFIED LINEAR POLY(ETHYLENIMINE) DOMAINS
Authors: Kimura Yoshiharu , Kanda Shinichi , Nango Mamoru , Ihara Yasuji , Koga Joichi , Kuroki Nobuhiko 
Published: July 2006

Abstract
A large rate enhancement and a stereoselective preference are exhibited in the hydrolysis catalysed by N-decanoyl-l-histidine(2a) and a dipeptide containing l-histidyl residue (2b) in the domain of linear poly(ethylenimine) derivatives.
AN EFFICIENT ONE-STEP REDUCTIVE N-MONOALKYLATION OF α-AMINO ACIDS
Authors: Ohfune Yasufumi , Kurokawa Natsuko , Higuchi Naoki , Saito Masayuki , Hashimoto Masaki , Tanaka Takaharu 
Published: July 2006

Abstract
Reactions of protection-free a-amino acids with aldehydes or ketones in the presence of sodium cyanoborohydride afforded the N-monoalkylated amino acids in inorganic salt-free form. Application of this method to the synthesis of N-alkyl derivatives of biologically important amino acids is also described.
STEREOSELECTIVE HYDROALKYLIDENATION OF OLEFIN WITH PYRIDINIUM METHYLIDES
Authors: Tsuge Otohiko , Kanemasa Shuji , Takenaka Shigeori , Kuraoka Satoru 
Published: July 2006

Abstract
Acid-catalyzed elimination of pyridine from the stereoselective [3+2] cycloadducts between electron-deficient olefins and pyridinium methylides with ylide-stabilizing substituents offers a new type of C–C bond formation.
NEW METAL CATION-SELECTIVE IONOPHORES DERIVED FROM CALIXARENES
Authors: Chang Suk-Kyu , Cho Iwhan 
Published: July 2006

Abstract
Ethoxycarbomethyl derivatives of calix[6]arene and calix[8]arene prepared by the reaction of bromoacetic acid ester with the calixarenes exhibited distinct size-selectivity in their ion-extracting behaviors towards Cs+ and K+ ions.
CRYSTALLINE COMPLEXES OF CYLINDRICAL MACROCYCLIC POLYETHERS. DIDECALINO- AND DECALINO-BENZO-18-CROWN-6
Authors: Kobiro Kazuya , Kakiuchi Kiyomi , Tobe Yoshito , Odaira Yoshinobu 
Published: July 2006

Abstract
Didecalino- and decalino-benzo-18-crown-6 have been found to form 1:1 (crown ether:cation mole ratio) complexes in stoichiometry with NaNCS, KNCS, RbNCS, CsI3, and/or H3OClO4 without any formation of sandwich-type complexes.
TOTAL SYNTHESES OF MOKKO LACTONE, DEHYDROCOSTUS LACTONE, AND EREMANTHIN
Authors: Ando Masayoshi , ONO Akio , Takase Kahei 
Published: July 2006

Abstract
A series of guaianolides such as mokko lactone, dehydrocostus lactone, and eremanthin which posses a common structural unit in A ring have been synthesized from 1-oxoeudesm-2-eno-13,6α-lactone in 7 steps. The key step involves solvolytic rearrangement of 1β-mesyloxyeudesm-4(14)-eno-13,6α-lactone.
BONDING ISOMERS OF TRIORGANOSTANNYL ENOLATES ANALYZED BY 119Sn NMR SPECTROSCOPY
Authors: Kobayashi Kazuko , Kawanisi Mituyosi , Hitomi Torazô , Kozima Sinpei 
Published: July 2006

Abstract
The bonding isomers of triorganostannyl enolates were analyzed by 119Sn NMR spectroscopy. In some cases the existence of an equilibrium between the O-stannyl enolate and C-stannyl derivative was confirmed by variable temperature 119Sn NMR spectra.
CRYSTAL STRUCTURE OF cis-DIAMMINEPLATINUM α-PYRROLIDONE VIOLET, [Pt4(NH3)8(C4H6NO)4](PF6)2(NO3)2.56·5H2O
Authors: Matsumoto Kazuko , Fuwa Keiichiro 
Published: July 2006

Abstract
Crystal structure of cis-diammineplatinum α-pyrrolidone violet, [Pt4(NH3)8(C4H6NO)4](PF6)2(NO3)2.56·5H2O is reported. From the results of X-ray diffraction analysis and potentiometric oxidative titration, it has been found that the compound is nonstoichiometric, being a mixture of 44% of [Pt4(NH3)8(C4H6NO)4]4+ and 56% of [Pt4(NH3)8(C4H6NO)4]5+ with the average platinum oxidation state of 2.14.
X-RAY CRYSTAL STRUCTURE OF [N,N′-ETHYLENEBIS(PYRROL-2-YLMETHYLENEAMINATO)]NICKEL(II) COMPLEX
Authors: Kabuto Chizuko , Kikuchi Takemitsu , Yokoi Hiroshi , Iwaizumi Masamoto 
Published: July 2006

Abstract
The 1:1 complex of nickel (II) with N,N′-ethylenebis (pyrrol-2-ylmethyleneamine) in benzene-inclusion crystals is a planar complex with a highly strained geometry of coordination, as shown by X-ray structural analysis.
UNUSUAL 1:1 MOLECULAR COMPLEXES OF 2,5-DIARYL-1,4-DITHIINS WITH 2,4-DIARYLTHIOPHENES
Authors: Kobayashi Keiji , Iwasaki Fujiko 
Published: July 2006

Abstract
The title compounds have been found to form the crystalline 1:1 molecular complexes wherein distinct intermolecular interaction such as hydrogen bonding, charge transfer interaction, or clathrate inclusion was not found as studied by an X-ray analysis.
CUPRIC ION-CATALYZED DIOXYGENATION OF 1,2-CYCLOHEXANEDIONES. A NONENZYMATIC ANALOG FOR QUERCETINASE DIOXYGENATION
Authors: Utaka Masanori , Hojo Makoto , Fujii Yasuyuki , Takeda Akira 
Published: July 2006

Abstract
1,2-Cyclohexanediones were found to be dioxygenated by molecular oxygen with the aid of cupric ion to afford 1,5-keto acids and carbon monoxide. The reaction proceeds possibly via an endoperoxide intermediate. Methyl α-hydroxyadipates were also formed as byproducts. The mechanism of oxygenation is discussed.
ETHYLENE HYDRATION OVER NIOBIC ACID CATALYSTS
Authors: Ogasawara Kazuharu , Iizuka Tokio , Tanabe Kozo 
Published: July 2006

Abstract
Niobic acids preheated in vacuo at moderate temperatures (200–220 °C) were found to be highly active for ethylene hydration to form ethyl alcohol. The activity at steady state was higher than that of a well known solid phosphoric acid, the selectivity being more than 97% at a reaction temperature of 220 °C.
SUPERBASICITY OF RUBIDIUM OXIDE AND CAESIUM OXIDE, AND THEIR REACTION PROFILES OF ISOMERIZATION OF BUTENES
Authors: Tsuchiya Susumu , Takase Shigeyuki , Imamura Hayao 
Published: July 2006

Abstract
The superbasic sites on a rubidium oxide and a caesium oxide have been revealed by means of the benzoic acid titration method. The double-bond-migration and the cis–trans isomerization of butenes took place over the rubidium oxide and the caesium oxide; but the skeletal isomerization was not observed.
REGIO- AND STEREO-SELECTIVITIES IN THE TITANIUM COMPLEX CATALYZED HYDROBORATION OF CARBON–CARBON DOUBLE BONDS IN VARIOUS UNSATURATED COMPOUNDS
Authors: Lee Hyung Soo , Isagawa Kakuzo , Toyoda Hiromu , Otsuji Yoshio 
Published: July 2006

Abstract
The titanium complex prepared from TiCl3 and NaBH4 in THF in the presence of 18-crown-6 promotes the catalytic hydroboration of carbon–carbon double bonds in alkenes, alkadienes and unsaturated ethers with NaBH4, giving sodium organoborates which can be converted into alcohols by oxidation with H2O2/CH3ONa. The reaction proceeds with high regio- and stereo-selectivities.
A SIMPLE SYNTHESIS OF (1R and 1S)-[1-2H1]-1,5-ANHYDRO-d-GLUCITOL AND [1-2H2]-1,5-ANHYDRO-d-GLUCITOL
Authors: Funabashi Masuo , Yoshioka Shigetake 
Published: July 2006

Abstract
As a basic study of metabolism of 1,5-anhydro-d-glucitol, which has recently been identified in both human cerebrospinal fluid and plasma, the title compounds were conveniently synthesized as preliminary targets not only for multideuteration but for tritium labelling.
EFFECTS OF ALKALI METAL HALIDES IN THE FORMATION OF ALCOHOLS FROM CO AND H2 OVER SILICA-SUPPORTED MOLYBDENUM CATALYSTS
Authors: Tatsumi Takashi , Muramatsu Atsushi , Tominaga Hiro-o 
Published: July 2006

Abstract
Silica-supported molybdenum catalysts, promoted by alkali metal halides, give C1–C5 alcohols with good selectivity (up to 72% by weight of the total product, exclusive of CO2) from a CO–H2 mixture at 16 kg/cm2 and 260–300 °C.
SYNTHESIS OF CEMBRA-3E,7E,11E,15(17)-TETRAEN-cis-16,2-OLIDE
Authors: Aoki Mario , Uyehara Tadao , Kato Tadahiro 
Published: July 2006

Abstract
The titled natural product was synthesized from 3,7,11-trimethyl-cyclotetradeca-2E,6E,10E-trienone.
RATE CONSTANTS AND THERMODYNAMIC PARAMETERS FOR THE INCLUSION REACTIONS OF SOME p-HYDROXYPHENYLAZO DERIVATIVES OF SULFANILIC ACID WITH α-CYCLODEXTRIN
Authors: Yoshida Noboru , Seiyama Akitoshi , Fujimoto Masatoshi 
Published: July 2006

Abstract
Inclusion reactions of the title azo compounds with α-cyclodextrin were studied in aqueous solution by means of the stopped-flow method. The forward rate constants for the inclusion reactions were found to be in the order of magnitude 102–104 mol−1 dm3 s−1 Activation parameters were first determined for α-cyclodextrin system.