bluuebunny/crossref_metadata_2025_split huggingface dataset:
Photolysis of CO2 with 158 nm (F2) Laser. Reactivity of O (1D) with CH4, CF3H, and CF3CH3
Authors: Kojima Masanobu , Ojima Yuichi , Nakashima Nobuaki , Izawa Yasukazu , Akano Toru , Yamanaka Chiyoe 
Published: May 2006

Abstract
Electronically excited oxygen atom O (1D), generated by photolysis of CO2 with a 158 nm (F2) laser, reacts with CH4, CF3H, and CF3CH3 to give corresponding vibrationally excited alcohols (ROH*) by insertion into the C-H bonds, which collapse to vibrationally relaxed alcohols or alkyl and hydroxy radical pairs depending on the stability and lifetime of ROH*.
The Thin Film of Fluorine-containing Polymer Having Cyclodextrin Prepared by Langmuir-Blodgett Technique
Authors: Tamura Masanori , Sekiya Akira 
Published: May 2006

Abstract
Polyallylamine modified with perfluoroalkyl groups was spread by Langmuir-Blodgett technique and reacted on the aqueous solution of a cyclodextrin derivative. The cyclodextrin moiety was first introduced to the thin film of fluorine-containing polymer. The film of the polymer having the cyclodextrin moiety was characterized.
The Ωs Constant for Polar Substituents. Reinvestigation on the Separation of the Steric and the Polar Effects
Authors: Akai Ikuo , Sakakibara Kazuhisa , Hirota Minoru 
Published: May 2006

Abstract
The steric substituent constants Ωs for 16 heteroalkyl groups were calculated and compared with Taft’s Es constants. The Es vs. Ωs plot showed two parallel but separated lines each for alkyl and heteroalkyl groups. This fact was rationalized as the conformational effect.
Silane Coupling Agents for Photografting of Vinyl Monomer. Preparation and Properties of (N,N-Diethylamino)dithiocarbamoylpropyl(trimethoxy)silane
Authors: Kobayashi Takaomi , Takahashi Syun , Nosaka Yoshio , Fujii Nobuyuki 
Published: May 2006

Abstract
A silane coupling agent having a photosensitive group for photograftpolymerization, (N,N-diethylamino)dithiocarbamoylpropyl(trimethoxy)silane (DATMS), was prepared and its characteristics were examined. The application was as follows: a glass surface was treated with DATMS followed by the photografting of sodium styrenesulfonate (SSS).
Lipid-Heme/Microsphere. A New Totally Synthetic Oxygen-Carrier under Physiological Conditions
Authors: Komatsu Teruyuki , Matsubuchi Eriko , Nishide Hiroyuki , Tsuchida Eishun 
Published: May 2006

Abstract
Triglyceride microsphere emulsified with 5,10,15,20-tetrakis[α,α,α,α-o-[2,2-dimethyl-20-[2-(trimethylammonioethoxy)phosphonatoxy]eicosanamido]phenyl] porphyrinatoiron (lipid-heme) provides a new totally synthetic oxygen-carrier (lipid-heme/microsphere) under physiological conditions. Oxygen-binding property of the lipid-heme/microsphere is comparable with that of red blood cell.
Spin-Spin Couplings in the Copper Acetate Hydrate Dimer Studied by Single Crystal 13C ENDOR for Zinc-Doped Copper Acetate Monohydrate
Authors: Kita Shouichi , Uchida Kengo , Miyamoto Ryo , Iwaizumi Masamoto 
Published: May 2006

Abstract
The zinc-doped copper acetate monohydrate was examined by single crystal 13C ENDOR, and clear experimental evidence was obtained which shows importance of the spin exchange and the double-spin polarization mechanisms for the antiferromagnetic coupling between the Cu–Cu pair in the copper acetate dimer.
Phase Transitions and Ionic Motions Including Self-Diffusion in Solid Trimethylammonium Tetrafluoroborate Studied by 1H and 19F NMR
Authors: Ishida Hiroyuki , Hayama Naomi , Ikeda Ryuichi 
Published: May 2006

Abstract
1H and 19F NMR of (CH3)3NHBF4 were measured in the three solid phases. In Phase I existing above 453 K, the cations and anions were found to perform rapid self-diffusion as well as isotropic reorientation. In Phase II (384 ≤ T/K ≤ 453), the onset of self-diffusion of the anions and the isotropic reorientation of the cations was observed. In Phase III stable below 384 K, C3 reorientations of the CH3 groups and the whole cation, and the anionic isotropic reorientation were detected.
Conformational Asymmetry of a Linear Perfluoroalkyl Chain in Solution. Dynamic Fluorine-19 NMR Spectroscopy of the Perfluoro-n-alkanes Carrying a Chiral End-Group as a Probe of Magnetic Nonequivalence
Authors: Ute Koichi , Kinoshita Ryuji , Matsui Ken-ichi , Miyatake Nobuo , Hatada Koichi 
Published: May 2006

Abstract
The 470 MHz 19F NMR spectra of 1-perfluorohexyl-1-phenylethanol (1a) were measured in toluene-d8. At 0 °C and the lower temperatures, magnetic nonequivalence was observed for the two fluorine nuclei in the CF2 group adjacent to the asymmetric carbon atom and for those in the subsequent four CF2 groups. The extent of the nonequivalence was highly dependent on temperature. 1a and the perfluorooctyl- and perfluorodecyl-homologues were optically resolved and specific rotation of the pure (−)-isomers were examined from the viewpoint of the conformational asymmetry induced on the perfluoroalkyl chain.
Partial Oxidation of p-Substituted Toluenes to Corresponding Benzaldehydes in Vapor Phase over V2O5-Tl2O Catalyst
Authors: Ueshima Michio , Saito Noboru 
Published: May 2006

Abstract
The selective oxidation of p-substituted toluenes to corresponding aromatic aldehydes were effectively performed by vapor phase oxidation reaction over V2O5-Tl2O combination catalyst with high activity and selectivity.
Regioselective Reduction of α,β-Unsaturated Carbonyl Compounds to Allylic Alcohols by Vapor Phase Hydrogen Transfer Reaction over MgO-B2O3 Catalyst
Authors: Ueshima Michio , Shimasaki Yuuji 
Published: May 2006

Abstract
Regioselective reduction of α,β-unsaturated carbonyl compounds to the corresponding allylic alcohols was performed effectively by vapor phase hydrogen-transfer reaction over MgO-B2O3 (Mg/B = 100/2) catalyst using secondary alcohols as a hydrogen donor.
Highly Stereodivergent Approach to Both Enantiomers of 4-Substituted β-Lactams via Diastereofacially Controlled Addition of Enolates of t-Butyl Acetate to a Chiral Imine
Authors: Shimizu Makoto , Ukaji Yutaka , Tanizaki Junko , Fujisawa Tamotsu 
Published: May 2006

Abstract
Addition of lithium or triisopropoxytitanium enolate derived from t-butyl acetate to a chiral imine possessing dioxolane ring as a chiral auxiliary gave (3S)-β-amino ester exclusively, whereas chlorozinc enolate underwent re-facial attack to give (3R)-isomer with good selectivity. The β-amino esters thus obtained were readily converted to the corresponding (4S)- and (4R)-β-lactams respectively without loss of the stereochemical integrity at C-4 of the β-lactam rings.
The Cationic Diels-Alder Reaction. Facile Formation of Cationic Species from 2-Oxoalkyl Esters
Authors: Hashimoto Yukihiko , Nagashima Tadamichi , Hasegawa Masaki , Saigo Kazuhiko 
Published: May 2006

Abstract
In the presence of trimethylsilyl trifluoromethanesulfonate (TMSOTf) and methoxytrimethylsilane (MeOTMS), 2-oxopropyl acrylate and 2-oxocyclopentyl acrylate readily form cationic intermediates. The cationic moiety works efficiently as an electron-withdrawing group, and accelerates the Diels-Alder reaction under mild conditions.
Base-Induced Selective Ring Opening of 1-Arylbenzo[b]thiophenium Salts
Authors: Kitamura Tsugio , Takachi Tatsuya , Soda Shin-ichi , Kawasato Hironobu , Taniguchi Hiroshi 
Published: May 2006

Abstract
Reactions of 1-arylbenzo[b]thiophenium salts with methoxide anion in methanol caused the fission of the S+-C(2) bond of the thiophenium ring to produce o-(phenylthio)phenyl-substituted methoxyethenes, allenes, or alkynes.
Catalytic Hydrogenation of Olefins and Acetylenes over C60Pdn
Authors: Nagashima Hideo , Nakaoka Akihito , Tajima Syuji , Saito Yahachi , Itoh Kenji 
Published: May 2006

Abstract
Organopalladium polymers of buckminsterfullerene, C60Pdn, catalyze hydrogenation of olefins and acetylenes at room temperature under a hydrogen atmosphere. The catalytic activity is mainly dependent on the ratio of C60 to Pd in the polymers. Partial hydrogenation of acetylenes is achieved by adding benzylamine as the cocatalyst.
Facile Synthesis of α-Hydroxycarboxylic Acids by Ruthenium-Catalyzed Reduction of Diallyl α-Oxalylcarboxylates with Formic Acid
Authors: Shimizu Isao , Tekawa Masafumi , Maruyama Yooichiroh , Yamamoto Akio 
Published: May 2006

Abstract
Reaction of diallyl α-oxalylcarboxylates with catalytic amounts of ruthenium complexes gave α-hydroxycarboxylic acids in good yields.
An Adduct (1:2) from Diphenylcyclopropenone Oxime and Phenyl Isocyanate
Authors: Gunasekaran Ananthakrishnan , Zhu Nan , Stevens Edwin D , Boyer Joseph H 
Published: May 2006

Abstract
Diphenylcyclopropenone oxime combined with phenyl isocyanate to give 1,2,7-triphenyl-4-[(phenylamino)carbonyl]-5-oxa-4,7-diazaspiro-[2.4]hept-1-en-6-one.
BuSnCl3 Mediated Z-Selective 2-Butenylation and erythro-Selective 1-Methyl-2-propenylation of Aldehydes by 1-(Tributylstannyl)-2-butene
Authors: Miyake Hideyoshi , Yamamura Kimiaki 
Published: May 2006

Abstract
Butyltin trichloride mediated reaction of 1-(tributylstannyl)-2-butene with aldehydes is described. This reaction is useful as a stereoselective method for (Z)-2-butenylation and erythro-1-methy-2-propenylation of aldehydes.
Microviscosity in AOT Reversed Micellar Core Determined with a Viscosity-sensitive Fluorescence Probe
Authors: Hasegawa Masatoshi , Sugimura Tokuko , Kuraishi Kazuhiro , Shindo Yoich , Kitahara Ayao 
Published: May 2006

Abstract
Microviscosity in AOT reversed micellar core, η, was determined with a viscosity-sensitive fluorescent probe, auramine O (AuO), as a function of R ( = [H2O]/[AOT]). With the increase in R, The η decreased rapidly in the region of R &lt; 10, and leveled at about R = 20. AuO molecules located in the vicinity of water/surfactant interface suggested the presence of water bound to polar heads of AOT.
Lewis Acid-Promoted Reaction of β,β-Difluorinated N,O-Acetal with Silylated Nucleophiles
Authors: Tsukamoto Takashi , Kitazume Tomoya 
Published: May 2006

Abstract
Lewis acid-promoted reaction of ethyl 3-ethoxy-2,2-difluoro-3-(dimethylamino)propionate (1) with some silylated nucleophiles afforded β,β-difluoroamines in good yields. The formation of iminium ion intermediate from 1 and BF3·OEt2 was confirmed by 19F and 13C NMR spectroscopy.
Cobalt(II) Porphyrin-Catalyzed Oxidation of Olefins to Ketones with Molecular Oxygen and Triethylsilane in 2-Propanol
Authors: Matsushita Yoh-ichi , Matsui Takanao , Sugamoto Kazuhiro 
Published: May 2006

Abstract
An efficient conversion of olefins to ketones was achieved by the use of molecular oxygen and triethylsilane in the presence of a catalytic amount of cobalt(II) complex of porphyrin. The oxidation was accelerated remarkably in alcohols and had chemoselectivity for conjugated olefins.
Surface-Enhanced Infrared and Raman Studies of Electrochemical Reduction of Self-Assembled Monolayers Formed from p-Nitrohiophenol at Silver
Authors: Matsuda Naoki , Yoshii Katsumasa , Ataka Ken-ichi , Osawa Masatoshi , Matsue Tomokazu , Uchida Isamu 
Published: May 2006

Abstract
The electrochemical reduction of self-assembled monolayers formed from p-nitrothiophenol has been studied in situ by surface-enhanced infrared (IR) absorption and Raman scattering (SEIRA and SERS, respectively) spectroscopies. The sensitivity of SEIRA spectroscopy is 20 times higher than that of IR reflection-absorption (IR-RAS) spectroscopy. Combined use of SEIRA and SERS spectroscopies is useful for detailed analyses of electrode reactions and vibrational properties of adsorbed molecules.
A Convenient Synthesis of Unsymmetrical Tellurides by a Sequential Reductive Cleavage of Bis(N,N-dimethylcarbamoyl) Ditelluride
Authors: Shimada Kazuaki , Oikawa Seiji , Takikawa Yuji 
Published: May 2006

Abstract
Bis(N,N-dimethylcarbamoyl) ditelluride was converted to unsymmetrical tellurides possessing various substituents by a convenient stepwise reduction-alkylation or reduction-addition sequence.
First Preparation and Reactions of S,S-Diaryl-S-fluorothiazynes, Ar2SF(N)
Authors: Yoshimura Toshiaki , Kita Hiroshi , Takeuchi Kyu , Takata Eiichi , Hasegawa Kiyoshi , Shimasaki Choichiro , Tsukurimichi Eiichi 
Published: May 2006

Abstract
S,S-Diaryl-S-fluorothiazynes, Ar2SF(≡N), were prepared by the reaction of S,S-diaryl-N-bromosulfilimines with tetrabutylammonium fluoride. The thiazyne structure was assigned by the spectral data, physical properties, and is consistent with reactions with sodium alkoxides and primary amines. The thiazyne prepared previously by Clifford et al. is doubtful.
A New Oxidative Se-Dealkylation in Seleno-Pummerer Reaction of 1,8-Bis(methylseleno)naphthalene and Naphtho[1,8-b,c]-1,5-diselenocin Induced by Peri-Selenium Participation
Authors: Fujihara Hisashi , Saito Rei , Yabe Masayoshi , Furukawa Naomichi 
Published: May 2006

Abstract
A new type of oxidative Se-dealkylation reaction was found in either the reaction of 1,8-bis(methylseleno)naphthalene and naphtho[1,8-b,c]-1,5-diselenocin with benzoyl peroxide or the reaction of their Se-oxides with carboxylic acid anhydrides.
Formation of Rh Carbonyl Cluster Species and Its Conversion into Metal Particles during Exposure of Rh/Active Carbon to Carbon Monoxide Revealed by EXAFS and TPD Techniques
Authors: Takahashi Nobuo , Takeyama Terushige , Fujimoto Toshiyuki , Fukuoka Atsushi , Ichikawa Masaru 
Published: May 2006

Abstract
The results obtained by EXAFS and TPD of CO techniques clearly showed that Rh6(CO)16 is formed by the exposure of partially reduced Rh/active carbon to CO at 353 K, and further converted into metallic rhodium particles at 473 K.
Diastereoselective Synthesis of β-Amino Esters by the Lewis Acid-Mediated Reaction of N-Tosyl Aldimines with Ketene Bis(trimethylsilyl) Acetals
Authors: Shimada Shigeru , Saigo Kazuhiko , Abe Masanori , Sudo Atsushi , Hasegawa Masaki 
Published: May 2006

Abstract
In the presence of titanium(IV) bromide, N-tosyl aldimines smoothly reacted with ketene bis(trimethylsilyl) acetals at low temperature, and upon esterification anti-β-amino esters were obtained selectively.
Highly Regioselective Pinacol Rearrangement of Sulfenylmethylated Glycols
Authors: Kudo Kazuaki , Saigo Kazuhiko , Hashimoto Yukihiko , Saito Katsuyuki , Hasegawa Masaki 
Published: May 2006

Abstract
Pinacol rearrangement of glycols having a sulfenylmethyl group smoothly proceeded with high regioselectivity to give ketones which were derived by the elimination of the β hydroxyl group to the sulfur atom. This selectivity is due to the neighboring group participation of the sulfenyl group.
Inner Rotation of the Exocyclic C=C Bonds of Methyl 2-Cyano-(2-methylcyclohepta[b]thiophen-8-ylidene)acetate and Methyl 2-Cyano-(1,2-dimethylcyclohepta[b]pyrrol-8-ylidene)acetate
Authors: Ikeda Yukari , Yin Bing Zhu , Kato Nobuo , Mori Akira , Takeshita Hitoshi 
Published: May 2006

Abstract
The rotational barrier of the exocyclic C=C bonds of heptafulvenes condensed with a hetero aromatic ring is dependent on electron donating ability of heterocycles and on the steric repulsion around the exocyclic C=C bond. The large negative entropies of activation are consistent with an extensively polarized transition state.
Stereochemical Studies of Chiral Nonconjugated Carbanions. Asymmetric Alkylation of Aldehydes with Sulfur-Substituted Carbanions of Chiral α-(1,3-Dithian-2-yl) Acetals
Authors: Chikashita Hidenori , Yuasa Tsutomu , Itoh Kazuyoshi 
Published: May 2006

Abstract
A new type of asymmetric induction based on the nucleophilic addition of sulfur-substituted nonconjugated carbanions produced from a variety of chiral α-(1,3-dithian-2-yl) acetals to achiral aldehydes was studied. The reaction with the carbanion of the chiral acetal derived from (4R,5R)-3,6-diethyl-3,6-dimethoxy-4,5-octanediol showed the best stereoselectivity (ds = 2.4:1-6.3:1) producing a chiral secondary-alcohol center.
X-Ray Structure of [Be{B(pz)4}2] and [Be3(OH)3{HB(pz)3}3]. Different Structures and Multiple-Point Bindings in Polypyrazolylborate Complexes
Authors: Sohrin Yoshiki , Kokusen Hisao , Kihara Sorin , Matsui Masakazu , Kushi Yoshihiko , Shiro Motoo 
Published: May 2006

Abstract
Two novel polypyrazolylborate complexes of beryllium, [Be{B(pz)4}2] (1) and [Be3(OH)3{HB(pz)3}3] (2), have been prepared in aqueous solution, and their X-ray crystal structures have been determined. Complex 1 contains a tetrahedral Be2+ with each ligand having bidentate coordination. In complex 2, each HB(pz)3− is attached to a cyclic [Be3(OH)3]3+ moiety by two Be-N coordination bonds and one OH-N hydrogen bond.
Multi-Layered Thin Films of Ordered Alumina Particles
Authors: Tsutsumi Nobuo , Sakata Kanji , Kunitake Toyoki 
Published: May 2006

Abstract
Multi-layered alumina thin films with crystalline anisotropy and high surface area were prepared from ultra-fine particles of alumina using a multi-bilayer cast film of a double-chain ammonium amphiphile as a molecular template.
An Efficient Deoxysugar Synthesis using Bu4NBH4 via an SN2 Reduction
Authors: Sato Ken-ichi , Hoshi Toshio , Kajihara Yasuhiro 
Published: May 2006

Abstract
Deoxysugar derivatives were prepared from the corresponding triflate, tosylate, halogen, and epoxide derivatives. Employing the tetrabutylammonium tetrahydroborate reagent, the deoxygenation proceeds via an SN2 type displacement in good yield.
16-Electron Half-sandwich Ru(II)—Thiolate Complexes, Ru(SAr)2(η6-p-cymene) (Ar = 2,6-dimethylphenyl and 2,4,6-triisopropylphenyl)
Authors: Mashima Kazushi , Mikami Aki , Nakamura Akira 
Published: May 2006

Abstract
Treatment of [RuCl2(p-cymene)]2 with sodium 2,6-dimethylbenzenethiolate or sodium 2,4,6-triisopropylbenzenethiolate in methanol afforded a mononuclear five-coordinated ruthenium thiolate complex, Ru(SAr)2(p-cymene) (2a: Ar = 2,6-dimethylphenyl; 2b: 2,4,6-triisopropylphenyl), whose structure is determined by X-ray analysis of 2a.
Monolayer of Lithocholic Acid by Chemical Reaction on Silicon Crystal Surface
Authors: Sano Kenji , Machida Shigeru , Sasaki Hideyuki , Yoshiki Masahiko , Mori Yasushi 
Published: May 2006

Abstract
The reaction of lithocholic acid with silane coupling agent on a Si crystal surface was analyzed with FT-IR(ATR), XPS, and contact angle. The generation of amide bonds within 1nm of the Si surface was confirmed with XPS. The yield of amide was 84%. An abnormal IR absorption was observed in the amide band region.
Convenient One-Pot Synthesis of Sulfonyl Chlorides from Thiols Using Sulfuryl Chloride and Metal Nitrate
Authors: Park Young Jun , Shin Hyun Ho , Kim Yong Hae 
Published: May 2006

Abstract
Various sulfonyl chlorides were obtained in excellent yields by the reaction of alkyl and aryl thiols with sulfuryl chloride in the presence of metal nitrate under mild condition in aprotic solvents such as acetonitrile and N,N-dimethylformamide.
Abnormal Four-Membered Ring Formation in Intramolecular Radicalic Cyclization. High Stability of the Alkyl Radical Substituted with Methylthio and p-Tolylsulfonyl Groups
Authors: Ogura Katsuyuki , Sumitani Naoko , Kayano Akio , Iguchi Hirotaka , Fujita Makoto 
Published: May 2006

Abstract
Treatment of 5-iodo-1-(methylthio)-1-(p-tolylsulfonyl)-1-pentene with (n-Bu)3SnH and AIBN gave [(methylthio)(p-tolylsulfonyl)methyl]cyclobutane. This is due to the stability of an intermediary radical attached to methylthio and p-tolylsulfonyl groups.
Density Functional Calculations on the Geometries and Dissociation Energies of [M(H2O)6]2+ Ions. M2+ = Cr2+, Mn2+, Fe2+, Co2+, Ni2+, Cu2+, and Zn2+
Authors: Waizumi Kenji , Ohtaki Hitoshi , Masuda Hideki , Fukushima Nobuhiro , Watanabe Youichi 
Published: May 2006

Abstract
Full geometry optimizations have been carried out on high-spin hexaaqua complexes of Cr2+, Mn2+, Fe2+, Co2+, Ni2+, Cu2+, and Zn2+ by the local spin density functional method with non-local corrections using Gaussian-type basis sets. The octahedral molecular arrangement around the Mn2+, Ni2+, and Zn2+ ions optimized were regular, whereas those around the Cr2+, Fe2+, Co2+, and Cu2+ ions were distorted with significant differences in the three kinds of M-O distances. The Jahn-Teller distortion for the Fe2+ and Co2+ complexes was firstly found in the field of computational geometry optimization.
Stereoselective Synthesis of (±)-Isonitramine and (±)-Sibirine
Authors: Fujii Masayuki , Kawaguchi Koichi , Nakamura Kaoru , Ohno Atsuyoshi 
Published: May 2006

Abstract
Spirocyclic alkaloids, (±)-isonitramine and (±)-sibirine were synthesized in high overall yields via a chemoselective reduction by Hantzsch ester (HEH), a coenzyme NADH model compound.
Na+-Catalyzed Reduction of Semiquinone Radical Anions by NADH Analogues
Authors: Fukuzumi Shunichi , Tokuda Yoshihiro 
Published: May 2006

Abstract
Stable radical anions such as p-chloranil radical anion (Cl4Q−•) are reduced by NADH analogues, 1-benzyl-1,4-dihydronicotinamide (BNAH) and 10-methyl-9,10-dihydroacridine (AcrH2), to yield the corresponding hydroquinone anions. The addition of NaClO4 to the BNAH-Cl4Q−• system results in a significant increase in the rate of the one-electron reduction of Cl4Q−•, while no acceleration effect has been observed by the addition of Bu4NClO4.
Transformation of Dinucleoside S-Aryl Phosphorothioates into the Corresponding O-Alkyl Phosphates by Use of Tributyltin Alkoxides
Authors: Ohuchi Shokichi , Ayukawa Hiroshi , Hata Tsujiaki 
Published: May 2006

Abstract
Several alkyl dinucleoside phosphotriesters were easily obtained by use of the reaction of S-aryl dinucleoside phosphorothioates with tributyltin alkoxides. This reaction proceeds at room temperature under neutral conditions.
Facile Chlorination of Sugar Moiety of Nucleosides by Use of Tris(2,4,6-tribromophenoxy)dichlorophosphorane
Authors: Ohuchi Shokichi , Singh Ramendra K , Wada Takeshi , Hata Tsujiaki 
Published: May 2006

Abstract
A versatile chlorinating reagent, tris(2,4,6-tribromophenoxy)dichlorophosphorane was applied for 5′- and 3′-chlorination of nucleosides. It was found that the reaction proceeded via SN2 mechanism.
Fluoroselenenylation of Alkynes
Authors: Usuki Yoshinosuke , Iwaoka Michio , Tomoda Shuji 
Published: May 2006

Abstract
Benzeneselenenyl fluoride equivalent was generated in situ by the reaction of silver(I) fluoride with benzeneselenenyl bromide in dichloromethane under ultrasound irradiation. Treatment of internal alkynes with this reagent afforded 2-fluoro-1-alkenyl phenyl selenides in moderate yields.
A Stereocontrolled Construction of 2-Deoxy-β-glycosidic Linkages via 1,2-trans-β-Glycosidation of 2-Deoxy-2-[(p-methoxyphenyl)thio] glycopyranosyl N,N,N′,N′-Tetramethylphosphoroamidates
Authors: Hashimoto Shun-ichi , Yanagiya Yuki , Honda Takeshi , Ikegami Shiro 
Published: May 2006

Abstract
A stereocontrolled synthesis of 2-deoxy-β-glycosides has been achieved by developing a salient 1,2-trans-glycosidation method with 2-deoxy-2-[(p-methoxyphenyl)thio]glycopyranosyl N,N,N′,N′-tetramethylphosphoroamidates as glycosyl donors followed by a reductive removal of the p-methoxyphenylthio group with Raney nickel. The p-methoxyphenylthio group equatorially disposed at C-2 has proven to be an excellent stereodirecting auxiliary.
Synthesis and Electrical Conductive Properties of Polymeric Metalloporphyrins
Authors: Wang Yunpu , Wang Rongming 
Published: May 2006

Abstract
The polymeric porphyrin film has been prepared by interfacial polymerization of tetrakis (4-hydroxy phenyl) porphyrin (THPP) with terephthalyl chloride. The spectra and electrical properties of its complexes with transition metal (Cu, Co, Zn) have been studied. The polymer exhibits semi-conducting property (σRT = 4.83 × 10−4 S · cm−1) after doping with iodine.
Reaction of Metastable Ar Atoms with cis- and trans-2-Butene in Flow System
Authors: Takahasi Makoto 
Published: May 2006

Abstract
The chemical behavior of cis- and trans-2-butene has been investigated in a flow system with metastable Ar atoms. In the case of cis-2-butene, split of the C–C single bond between CH3 and CH=CH was observed, while in the case of trans-2-butene no reaction was observed. Geometrical isomerization of neither cis- nor trans-2-butene was observed.