bluuebunny/crossref_metadata_2025_split huggingface dataset:
SUBSTITUTION OF ALKYL AND HYDROXYALKYL GROUP FOR RING HYDROGEN AND OF HYDROXYALKYL GROUP FOR CYANO GROUP IN GAMMA-IRRADIATION OF PYRIDINECARBONITRILES IN ALCOHOL
Authors: Sugimori Akira , Mori Shoji , Maeda Kazuo , Nishijima Masayuki 
Published: July 2006

Abstract
Gamma-irradiation of pyridinecarbonitriles in alcohol in the presence of sulfuric acid brings about the substitution of the alkyl group derived from alcohol for the ring hydrogen, while that in the absence of sulfuric acid causes the substitution of hydroxy-alkyl group for CN at the 2- and 4-positions. Hydroxyalkyl radicals and solvated electrons play important role in the substitution.
ACID-BASE INTERACTION IN THE COMPLEXATION WITH A NICOTINOYL FUNCTIONALIZED CYCLODEXTRIN
Authors: Goren Zafrir , Dan Phyllis , Willner Itamar 
Published: July 2006

Abstract
Association of p-nitrothiphenol to a nicotinoyl functionalized α-cyclodextrin, is 5-fold enhanced as compared with its binding to nonfunctionalized α-cyclodextrin. This enhancement is attributed to an acid-base interaction operative in the association process.
N2-HYDROGENATION ON SOLID SURFACE WITH GLOW DISCHARGE
Authors: Miyahara Koshiro 
Published: July 2006

Abstract
The steady and selective N2-hydrogenation to hydrazine on solid surface was performed at room temperature by the use of glow discharge of N2 gas over higher hydrocarbon film held on solid surface. Formation of ammonia from H2/N2 mixture was found to be due to the simple wall effect of solid surface on the plasma.
FLOW INJECTION ANALYSIS WITH AMPEROMETRIC DETECTOR UTILIZING THE REDOX REACTION OF IODATE ION
Authors: Ikeda Sanae , Satake Hiromu , Kohri Yasuyuki 
Published: July 2006

Abstract
A flow injection method for the determination of oxidizable compounds was developed by utilizing the redox reaction of iodate ion with the sample. Decrease of iodate ion concentration was monitored by measuring its reducing current at a platinum wire electrode held at +0.6 V vs. a silver tubing electrode. Furthermore, L-ascorbic acid, hydrazine and L-cysteine could be determined continuously by using only a hydrazine calibration curve in the concentration range 10−4–10−3 mol dm−3 with 20 μl samples.
REACTION OF 3,3,3-TRIFLUOROPROPENE WITH BENZENE OVER Al2O3 TREATED WITH CF3Cl
Authors: Takusari Hisanori , Okazaki Susumu 
Published: July 2006

Abstract
The reaction between 3,3,3-trifluoropropene and benzene in a vapor phase was carried out over various Al2O3. Trifluoropropylbenzene was obtained selectively when CF3Cl-treated Al2O3 was used as a catalyst.
METAL-CATALYZED REARRANGEMENT OF PHENYLATED BIS-HOMOCUBANE
Authors: Yokoyama Kinichi , Saegusa Yumi , Miyashi Tsutomu , Kabuto Chizuko , Mukai Toshio 
Published: July 2006

Abstract
The reaction of the phenylated bis-homocubane with Fe(III) exclusively afforded the [2+2]cycloreversion product (6), whereas that with Ag(I) gave 6 together with the skeletal rearranged snoutane derivative.
PERMEATION PROPERTY OF BUILT-UP THIN FILM OF ARTIFICIAL LIPID WITH HYDROPHILIC AND HYDROPHOBIC SURFACES
Authors: Kajiyama Tisato , Kumano Atsushi , Takayanagi Motowo , Kunitake Toyoki 
Published: July 2006

Abstract
Artificial lipid was spread on water surface as a monomolecular layer and the monolayer was built up on the polymeric film. The built-up film was formed by the bimolecular layer structure and exhibited the crystal-liquid crystal phase transition. In the case of the built-up film with the hydrophilic surface contacting with a salt solution, the diffusive permeability coefficient, P of K+ ion increased discontinuously about 100 times over the range of crystal-liquid crystal phase transition temperature, Tc. In the case of that with the hydrophobic surface, the slope of the P vs. 1/T plot increased with a break at Tc.
PHOTOCHEMICAL 2+2 CYCLOADDITION OF 2-CHLORO-1,4-NAPHTHOQUINONE TO ALKENES. A NOVEL SYNTHESIS OF 1,2-DIHYDROCYCLOBUTA[b]NAPHTHALENE-3,8-DIONES
Authors: Naito Toshihiko , Makita Yoshihiko , Kaneko Chikara 
Published: July 2006

Abstract
2-Chloro-1,4-naphthoquinone undergoes photochemical 2+2 addition at its 2- and 3-positions to alkenes. An elimination of hydrogen chloride from the adducts provides a facile and general synthetic method of 1,2-dihydrocyclobuta[b]naphthalene-3,8-diones.
KINETIC AND THERMODYNAMIC CONTROL OF ASYMMETRIC INDUCTION BY CHIRAL DIPHOSPHINE IN RING CONTRACTION OF (CHIRAL DIPHOSPHINE)NiCH2CH2CH2COO TO (CHIRAL DIPHOSPHINE) NiCH (CH3)CH2COO
Authors: Sano Kenji , Yamamoto Takakazu , Yamamoto Akio 
Published: July 2006

Abstract
An (S,S)-CHIRAPHOS-coordinated six-membered ring complex NiCH2CH2CH2COO undergoes facile ring contraction to give a mixture of ((S,S)-CHIRAPHOS)-(R)-NiCH(CH3)CH2COO (2a) and ((S,S)-CHIRAPHOS)-(S)-NiCH(CH3)CH2COO (2b). Complex 2a is kinetically favored, whereas 2b is thermodynamically favored; a thermodynamically equilibrated mixture contains 2b in 54% de.
RATES OF DISSOCIATION OF N-(1,3-DITHIOLAN-2-YL)PYRIDINIUM PERCHLORATE IN POLAR APROTIC SOLVENTS
Authors: Oki Michinori , Morita Toshiari 
Published: July 2006

Abstract
Rates of dissociation of the C–N bond in the title compound have been obtained by the dynamic NMR technique. The barriers to dissociation are 16.4 and 16.5 kcal/mol at 273 K in CD3CN and CD3NO2, respectively.
STRUCTURAL STUDY OF POLY(CARBON DISELENIDE)
Authors: Kobayashi Akiko , Sasagawa Nobuyoshi , Sasaki Yukiyoshi , Asakura Kiyotaka , Yokoyama Toshihiko , Ishii Hiromu , Kosugi Nobuhiro , Kuroda Haruo , Kobayashi Hayao 
Published: July 2006

Abstract
Poly(carbon diselenide) is metallic in an ordered crystalline state and it becomes less conductive when crystalline imperfection increases. EXAFS spectra show the existence of Se–Se bonds and the co-ordination number of Se in metallic poly(carbon diselenide) is almost 2.0, indicating the infinite chains of Se atoms. Extended Huckel calculation gave a reasonable interpretation of the metallic nature of crystalline poly(carbon diselenide).
A TWO-STEP MECHANISM FOR THE INCLUSION REACTIONS OF α-CYCLODEXTRIN WITH MONO ALKYL-SUBSTITUTED HYDROXYPHENYLAZO DERIVATIVES OF SULFANILIC ACID
Authors: Seiyama Akitoshi , Yoshida Noboru , Fujimoto Masatoshi 
Published: July 2006

Abstract
Kinetic studies on the inclusion reactions of the title azo compounds with α-cyclodextrin (α-CDx) in aqueous solution by means of the stopped-flow method reveal a two-step inclusion mechanism involving a fast binding process of the guest compounds to α-CDx followed by the slow intramolecular transformation of the intermediate inclusion complex. Activation parameters for each step were determined.
PHOTOISOMERIZATION OF 7-SUBSTITUTED NORBORNADIENE-CYCLODEXTRIN INCLUSION COMPLEXES
Authors: Yumoto Takaari , Hayakawa Kiyoshi , Kawase Kaoru , Yamakita Hiromi , Taoda Hiroshi 
Published: July 2006

Abstract
The photoisomerization of 7-substituted norbornadiene-cyclodextrin inclusion complexes, in which the substituents are t-butoxyl, acetoxyl, and hydroxyl groups, gave 7-substituted quadricyclene-cyclodextrin inclusion complexes.
REGIOSELECTIVE CYCLOADDITION REACTIONS OF ALLYLSILANES AND SILYL ENOL ETHERS WITH NITRONES AND NITRILE OXIDES. SYNTHESIS OF HOMOALLYLAMINES
Authors: Hosomi Akira , Shoji Hiroaki , Sakurai Hideki 
Published: July 2006

Abstract
Allylsilanes and silyl enol ethers add to nitrones and nitrile oxides regioselectively to give the corresponding isoxazolidines and isoxazolines in good yield. Hydrogenative cleavage of the N–O bond of [3 + 2] cycloadducts with allylsilanes affords homoallylamines. In contrast, cyanosilane reacts smoothly with nitrones in a 1,3-conjugate mode.
1H-ENDR OF DI-t-BUTYL NITROXIDE EFFECT OF THE 14N HYPERFINE INTERACTION
Authors: Yamauchi Jun , Deguchi Yasuo 
Published: July 2006

Abstract
ENDOR spectra of di-t-butyl nitroxide have been observed at −90 °C in heptane. Two ENDOR lines near the free proton frequency had different absorption intensities and their line-shape showed a clear dependence on the nitrogen spin quantum number. This indicates an important spin cross relaxation by the nitrogen nucleus in the proton spin system and suggests a negative sign of the proton hyperfine coupling constant.
INFLUENCE OF CYCLODEXTRINS ON THE SODIUM BOROHYDRIDE REDUCTION OF CYCLOHEXENONES
Authors: Chênevert Robert , Chamberland Daniel 
Published: July 2006

Abstract
The sodium borohydride reduction of cyclohexenones in aqueous medium is changed in the presence of cyclodextrins. β-cyclodextrin favours the 1,4-reduction over the 1,2-reduction whereas α-cyclodextrin favours the 1,2-reduction.
STEREOCONTROLLED SYNTHESIS OF TRICYCLO[6.2.1.04.9]UNDECANE RING SYSTEM OF ACONITIUM ALKALOIDS
Authors: Ihara Masataka , Ishida Yohhei , Abe Mariko , Toyota Masahiro , Fukumoto Keiichiro , Kametani Tetsuji 
Published: July 2006

Abstract
Intramolecular double Michael reaction of the α,β-unsaturated enone ester gave the tricyclo[ 5.2.2.01,5]undecane derivative, which was stereoselectively converted into the tricyclo[6.2.1.04,9]undecane derivative.
SYNTHESIS OF HEXAACETYLTETRAHYDROAUCUBIN A
Authors: Obara Heitaro , Kimura Hiroshi , Tanaka Yasuhiko 
Published: July 2006

Abstract
The synthesis of hexaacetyltetrahydroaucubin A, (1S,4aR,5R,7S,7aR)-5-acetoxy-7-acetoxymethyl-1-(2,3,4,6-tetraacetyl-β-d-glucopyranosyloxy)octahydrocyclopenta[c]pyran, has been carried out.
PREPARATION AND PROPERTIES OF INCLUSION COMPOUNDS OF (η6-ARENE)TRICARBONYLCHROMIUM(0) COMPLEXES WITH CYCLODEXTRINS
Authors: Harada Akira , Saeki Kohji , Takahashi Shigetoshi 
Published: July 2006

Abstract
One-to-one inclusion compounds were obtained in high yields by the treatment of β- and γ-cyclodextrin(CD) with (η6-arene)tricarbonylchromium(0) complexes; the formation of inclusion compounds is selective.
BREAKDOWN LUMINESCENCE OF PURE AND COBALT-DOPED ZnO ELECTRODES IN SUPPORTING ELECTROLYTE UNDER PULSED ANODIC EXCITATION
Authors: Fichou Denis , Kossanyi Jean 
Published: July 2006

Abstract
An intense breakdown current occurs at 9.7 V vs. SCE with pure (ND=5×1018 cm−3) and Co-doped n-ZnO electrodes in supporting electrolyte. A simultaneous light emission is observed, extending over the visible and near IR regions, which decays in 1 and 30 ms respectively. The exp (−bxV1⁄2) potential dependence of the electroluminescence intensity suggests an impact-ionization mechanism.
HIGHLY ENANTIOSELECTIVE SYNTHESIS OF ANTI(THREO)-ALDOLS BY THE ASYMMETRIC ALDOL REACTION UTILIZING A CHIRAL AZAENOLATE
Authors: Narasaka Koichi , Miwa Tetsuo 
Published: July 2006

Abstract
Diastereo- and enantioselective aldol reaction between 3-pentanone and aldehydes is achieved utilizing a chiral oxazolidine derived from 3-pentanone and chiral norephedrine. The reaction of a tin(II) azaenolate generated from the chiral oxazolidine with aldehydes affords predominantly anti(threo)-aldols of high enantiomeric purity.
A NOVEL AND USEFUL METHOD FOR THE PREPARATION OF METHYL ESTERS FROM DIMETHYL ACETALS
Authors: Mukaiyama Teruaki , Kato Jun-ichi , Miyoshi Norikazu , Iwasawa Nobuharu 
Published: July 2006

Abstract
In the presence of a catalytic amount of trityl perchlorate, acetal-type peroxides are successfully prepared from dimethyl acetals and t-butyl trimethylsilyl peroxide in good yields. The peroxides thus obtained are converted to the corresponding methyl esters also in good yields.
APPLICATION OF OPTICALLY ACTIVE ORGANOSILANE TO THE DETERMINATION OF OPTICAL PURITIES OF AMINES, ALCOHOLS, AND CARBOXYLIC ACIDS
Authors: Terunuma Daiyo , Kato Masato , Kamei Masanao , Uchida Hidekatsu , Nohira Hiroyuki 
Published: July 2006

Abstract
Application of optically active carbonfunctional organosilanes for the determination agent of optical purities of chiral amines, alcohols, and carboxylic acids by using NMR spectrometer were investigated.
IMMOBILIZED CATALYST DIRECTED TO SYNTHETIC CONTROL. CROSS-ALDOL REACTION
Authors: Mukaiyama Teruaki , Iwakiri Hiroshi 
Published: July 2006

Abstract
Cross-aldol adducts are stereoselectively formed in good yields by treating acetals or aldehydes and silyl enol ethers in a heterogeneous system with a catalytic amount of polymer-supported trityl perchlorate.
ASYMMETRIC SYNTHESES OF (5R,6R)-AEGINETOLIDE AND (5R)-DIHYDROACTINIDIOLIDE FROM (R)-2-HYDROXY-2-METHYLCYCLOHEXANONE
Authors: Sato Toshio , Funabora Makoto , Watanabe Makoto , Fujisawa Tamotsu 
Published: July 2006

Abstract
C11-Cyclic terpenes, (5R,6R)-(−)-aeginetolide and (5R)-(−)-dihydroactinidiolide have been synthesized stereoselectively starting from (R)-2-hydroxy-2-methylcyclohexanone in short steps.
FRIEDEL–CRAFTS REACTION OF 3,6-DIHYDRO-4-METHYL-2H-PYRAN WITH PHENOLS. A CONVENIENT SYNTHESIS OF A KEY INTERMEDIATE OF ALPHA-TOCOPHEROL
Authors: Fujita Yoshiji , Shiono Manzo , Ejiri Katsushi , Saita Kazumi 
Published: July 2006

Abstract
The Friedel–Crafts reaction of 3,6-dihydro-4-methyl-2H-pyran with 2,3,5-trimethylhydroquinone afforded 3,4-dihydro-6-hydroxy-2,5,7,8-tetramethyl-2H-1-benzopyran-2-ethanol in good yield.
ZINC SULFIDE-CATALYZED PHOTOCHEMICAL CONVERSION OF PRIMARY AMINES TO SECONDARY AMINES
Authors: Yanagida Shozo , Kizumoto Hirotoshi , Ishimaru Yoshiteru , Pac Chyongjin , Sakurai Hiroshi 
Published: July 2006

Abstract
Nonmetallized ZnS catalizes efficiently the photochemical conversion of primary amines to secondary amines with liberation of ammonia under irradiation of the UV light of λ&gt;290 nm. The conversion is interpreted as due to the two-hole-oxidation of primary amines to Schiff bases and their two-electron-reduction to secondary amines by the photogenerated electrons in ZnS.
PHOTOCHEMICALLY-INDUCED ASYMMETRIC MEMBRANE POTENTIAL ACROSS POLY(VINYL CHLORIDE)/SPIROBENZOPYRAN MEMBRANES
Authors: Anzaki Jun-ichi , Sasaki Hiroshi , Ueno Akihiko , Osa Tetsuo 
Published: July 2006

Abstract
The membrane potential across poly(vinyl chloride)/spirobenzopyran (1) membrane changed reversibly by UV and visible light irradiation even when no concentration gradient of electrolyte existed between two external solutions separated by the membrane. The photoresponse of the membrane potential strongly depended on the 1 content of the membranes. The results are explained in terms of formation of asymmetric membrane, namely the opened-1: closed-1 ratios of the two surfaces of the membrane were different from each other under UV light.
SYNTHESIS AND PROPERTIES OF 7-(2,3-DIPHENYLCYCLOPROPENYLIDENE)-1,6-METHANO-2(7H)-[10]ANNULENONE. A [3.10]QUINAREN-5-ONE DERIVATIVE HAVING POLYOLEFINIC CHARACTER
Authors: Takahashi Kazuko , Ohnishi Keiichi , Takase Kahei 
Published: July 2006

Abstract
The title quinarenone 2 in which the electron donating and electron accepting groups are located at the separate sites bisected by the 1,6-methano bridge, has been prepared. This compound has a preferable contribution of quinonoid resonance structure 2a to dipolar structure 2b in the ground state in order to maintain the weak conjugation between the two terminal chromophores, steming the C-1,6 overlap.
THE HIGHLY REGIOSELECTIVE COUPLING REACTION OF ALLYLIC ALCOHOLS WITH LITHIUM ENOLATE OF DITHIOESTERS USING 1-CHLORO-2-METHYL-N,N-TETRAMETHYLENEPROPENYLAMINE
Authors: Fujisawa Tamotsu , Umezu Kazuto , Sato Toshio 
Published: July 2006

Abstract
1-Chloro-2-methyl-N,N-tetramethylenepropenylamine was found to be a good condensation reagent for the regioselective coupling reaction of allylic alcohols with lithium enolate of dithioesters under mild conditions to afford γ,δ-unsaturated dithioesters, which proceeds by a thio-Claisen rearrangement of S-allylic ketene dithioacetals initially formed.
DIASTEREOSELECTIVE SYNTHESIS OF 2-HYDROXY-3,4-ALKADIENOIC ACIDS BY THE ESTER ENOLATE CLAISEN REARRANGEMENT OF PROPARGYL GLYCOLATES
Authors: Fujisawa Tamotsu , Maehata Eisaku , Kohama Hiromasa , Sato Toshio 
Published: July 2006

Abstract
The ester enolate Claisen rearrangement of propargyl glycolates gave 2-hydroxy-3,4-alkadienoic acids with high diastereoselectivity, which was confirmed by stereospecific transformation of the acids into dihydrofuranmethanols.
AN EFFICIENT METHOD FOR SYNTHESIS OF 1-CYANO-2-SUBSTITUTED-ISOINDOLES BY STRECKER REACTION USING o-PHTHALALDEHYDE AND PRIMARY AMINES
Authors: Takahashi Kazumasa , Suenobu Kazuhiko , Ogura Katsuyuki , Iida Hirotada 
Published: July 2006

Abstract
An efficient sequence proposed here provides a new synthetic method for preparation of 1-cyano-2-substituted-isoindoles by Strecker reaction using o-phthalaldehyde and primary amines.
FACILE REDUCTION OF ORGANIC HALIDES AND PHOSPHINE OXIDES WITH LiAlH4–CeCl3
Authors: Imamoto Tsuneo , Takeyama Toshiaki , Kusumoto Tetsuo 
Published: July 2006

Abstract
A new reagent system, LiAlH4–CeCl3, exhibits powerful and characteristic reducing ability. Organic halides including fluorine compounds are smoothly dehalogenated with this reagent. Phosphine oxides are also reduced to phosphines in excellent yields.
A NOVEL SYNTHESIS OF PSEUDO-α-l-ALTROPYRANOSE FROM d-GLUCOSE
Authors: Suami Tetsuo , Tadano Kin-ichi , Ueno Yoshihide , Fukabori Chiyoko 
Published: July 2006

Abstract
(1R,6R,8R,9R)-8,9-Isopropylidenedioxy-3-oxo-7-oxabicyclo[4.3.0]non-4-ene, a highly functionalized bicyclic compound, has been synthesized from d-glucose employing an intramolecular aldol condensation as the key reaction, and a transformation of it into pseudo-α-l-altropyranose was achieved efficiently.
STEREOCHEMISTRY OF AMINE-CATALYZED KNOEVENAGEL REACTIONS
Authors: Tanikaga Rikuhei , Konya Naoto , Kaji Aritsune 
Published: July 2006

Abstract
The amine-catalyzed Knoevenagel reactions of aldehydes and active methylene compounds containing two activating groups were found to involve many reversible steps, and the diastereomeric intermediary condensation compounds yielded thermodynamically stable products via carbanionic intermediates stabilized and sterically affected by two activating groups.
EOSIN Y-SENSITIZED CHEMILUMINESCENCE OF 7,7,8,8-TETRACYANOQUINODIMETHANE IN SURFACTANT VESICLES FOR DETERMINATION OF MANGANESE(II) AT SUB-NANOGRAM LEVELS BY FLOW INJECTION METHOD
Authors: Yamada Masaaki , Kamiyama Satoru , Suzuki Shigetaka 
Published: July 2006

Abstract
Luminous oxidation of 7,7,8,8-tetracyanoquinodimethane(TCNQ) by dissolved O2 is utilized for sensitive determination of Mn(II), The weak chemiluminescence of TCNQ is effectively sensitized by eosin Y in didodecyldimethylammonium bromide bilayor vesicles. The limit of determination is 0.01 ng(20-μl sample injection).
HYDROTHERMAL CRYSTAL GROWTH OF CALCITE IN NaCl AND KCl SOLUTIONS
Authors: Hirano Shin-ichi , Kikuta Ko-ichi 
Published: July 2006

Abstract
Hydrothermal growth of calcite single crystal was studied by using NaCl and KCl solutions which have been considered to be naturally existing as the saline mineralizer. Both of NaCl and KCl solutions were found to be the effective mineralizer for the growth of calcite crystal of optical grade. Optically clear single crystals of calcite could be grown from each chloride solution.
ASYMMETRIC RING-OPENING OF CYCLOHEXENE OXIDE WITH VARIOUS THIOLS CATALYZED BY ZINC Lq-TARTRATE
Authors: Yamashita Hiroyuki , Mukaiyama Teruaki 
Published: July 2006

Abstract
Optically active trans-2-(arylthio or alkylthio)cyclohexanols are prepared by the asymmetric ring-opening of cyclohexene oxide with various arylthiols or alkylthiols in 52–85% ee by the use of zinc Lq-tartrate as a heterogeneous chiral Lewis acid catalyst.
PEPTIDE FORMATION FROM AMINO ACID WITH PARTICULATE SEMICONDUCTOR PHOTOCATALYSTS
Authors: Onoe Jun , Kawai Tomoji , Kawai Shichio 
Published: July 2006

Abstract
Peptides of diglycine to pentaglycine are formed from glycine under irradiation in the presence of particulate semiconductor photocatalysts such as TiO2, CdS, CdSe, MOS2, In2O3, and GaP, with and without Pt deposition. Platinization of the semiconductors efficiently enhanced the yield of the peptides.
ENRICHMENT OF NONIONIC SURFACTANTS WITH FLUOROCARBON POLYMER MEMBRANE
Authors: Igawa Manabu , Anzai Tsunehisa , Seno Manabu 
Published: July 2006

Abstract
Nonionic surfactants were enriched by the permeation through a fluorocarbon polymer membrane under a pressure gradient when the concentration of the surfactants were low. The enrichment factor increased with a decrease in the operating pressure and an increase in the lipophilicity of the surfactant.
SYNTHESIS AND REACTIONS OF CYCLIC α-HYDROXY SULFIDES
Authors: Takata Toshikazu , Huang Liren , Ando Wataru 
Published: July 2006

Abstract
Stable, optically active α-hydroxy sulfides are prepared in high yields by reduction of corresponding α-hydroperoxy sulfides obtained by stereospecific photohydroperoxidation of optically active thiazolidine derivatives. A few reactions as well as spectroscopic data characterize the alcohol structure.
CRYSTAL STRUCTURE OF [Et4N]2[Fe4S4(2,4,6-TRIMETHYLBENZENETHIOLATO)4]
Authors: Ueyama Norikazu , Sugawara Takashi , Fuji Michiaki , Nakamura Akira , Yasuoka Noritake 
Published: July 2006

Abstract
The crystal structure of [Et4N]2[Fe4S4(2,4,6-trimethylbenzenethiolato)4] was determined by X-ray diffraction. The complex crystallizes in orthorhombic space group (Pcnb). The Fe4S42+ core of the anion approaches C2 symmetry. The complex has relatively long Fe–S(Ph) bond lengths and small Fe–S–C angles. The results suggest the prevention of π-overlap between Fe(d)-SPh(p) orbitals by the steric hindrance of two methyl groups at o-positions of phenyl group.
THE FREQUENCY DEPENDENCE OF MOTT–SCHOTTKY PLOTS
Authors: Braun Christian M , Fujishima Akira , Honda Kenichi 
Published: July 2006

Abstract
The charging current of the space charge layer of a CdS(0001)/aq. KCl junction was measured by Time Domain Spectroscopy in the short time region. The relaxation spectrum consists of a multitude of exponentials, which is interpreted by a heterogeneous semiconductor surface. This explains the dependence of conventional Mott Schottky plots on frequency and resulting errors in the determination of flatband potential and donor density.
COPPER(I) IODIDE-MEDIATED ARYLATION OF DIALKYL CYANOMETHANEPHOSPHONATES. A NOVEL ROUTE TO α-ARYLATED ALKANENITRILES
Authors: Suzuki Hitomi , Watanabe Kazue , Yi QUI 
Published: July 2006

Abstract
Copper(I)-catalyzed arylation of dialkyl cyanomethanephosphonate anions in hot hexamethylphosphoric triamide affords α-arylalkanenitriles in moderate to good yields.
ELECTRICALLY STIMULATED RELEASE OF NEUROTRANSMITTER FROM A CONDUCTING POLYMER THIN FILM ON THE MODEL OF A SYNAPSE
Authors: Shinohara Hiroaki , Aizawa Masuo , Shirakawa Hideki 
Published: July 2006

Abstract
A microtip of polypyrrole film (50 μm in diameter) was devised on the model of a presynaptic membrane. The microtip incorporated neurotransmitter such as glutamic acid at an electrochemically oxidized state. The incorporated glutamic acid was released from the film on call by electric pulse stimulation.
A CONVENIENT METHOD FOR THE PREPARATION OF 6-PHENOXY-2-PYRIDINECARBALDEHYDE
Authors: Ozawa Kiyomi , Ishii Shigeru , Hatanaka Masataka 
Published: July 2006

Abstract
6-Phenoxy-2-pyridinecarbaldehyde was prepared in good yields through a few reaction steps utilizing Grignard reaction which has been regarded disadvantageous for preparation of pyridinecarbaldehydes.
APPLICATION OF A DUAL-DISC SEMICONDUCTORS TO A LEAN-BURN OXYGEN SENSOR
Authors: Shimizu Yasuhiro , Fukuyama Yoshiki , Arai Hiromichi 
Published: July 2006

Abstract
A lean-burn oxygen sensor composed of two different sintered semiconductors was made by electrically contacting the discs of SrAl0.01Ti0.99O3 and Cr2O3 with Pt mesh by mechanical pressing. The resistance-λ′ characteristic of the connected device was investigated in the exhaust gas of oxygen-propane combustion, where λ′ stands for the oxygen excess ratio. It was found that the SrAl0.01Ti0.99O3Cr2O3 device had promising properties for a lean-burn oxygen sensor, because the device exhibited a large change in the resistance in the lean-burn region with a negligible change in the rich-burn region.