bluuebunny/crossref_metadata_2025_split huggingface dataset:
A Stereoselective Synthesis of N-[(S)-1-Ethoxycarbonyl-3-phenylpropyl]-l-alanine Derivatives by Means of Reductive Amination
Authors: Iwasaki Genji , Kimura Rieko , Numao Naganori , Kondo Kiyosi 
Published: July 2006

Abstract
A stereoselective synthesis of N-[(S)-1-ethoxycarbonyl-3-phenylpropyl]-l-alanine, a portion of the molecule of angiotensin converting-enzyme(ACE) inhibitors, by reductive amination utilizing catecholborane and further applications of the reaction to the synthesis of ACE inhibitors are described.
Formation of Uronic Acid by Galactose Oxidase
Authors: Matsumura Shuichi , Kuroda Akihiro , Higaki Norihiko , Hiruta Yukari , Yoshikawa Sadao 
Published: July 2006

Abstract
The C-6 hydroxymethyl group of methyl d-galactopyranoside and oligosaccharides containing d-galactopyranosyl residues were found to be oxidized with oxygen by galactose oxidase to the corresponding carboxyl group via an aldehyde intermediate.
Activation of Molecular Oxygen into Hydrogen Peroxide via α-Azobenzyl Hydroperoxide. A Generation of Hydrogen Peroxide from Organic Hydroperoxide by the Amine-base Catalyzed Reaction
Authors: Tezuka Takahiro , Otsuka Takashi 
Published: July 2006

Abstract
Hydrogen peroxide is generated together with nitrile imine from α-azobenzyl hydroperoxide, which is formed readily by autooxidation of arylaldehyde hydrazone, via peroxycarboximidic acid by the amine-base catalyzed reaction in benzene. This provides a new type of activation reaction of molecular oxygen into hydrogen peroxide by aldehyde hydrazone.
Stereospecific Total Synthesis of Dimorphecolic Acid, 5(S)-HETE, and 12(S)-HETE
Authors: Shimazaki Toshiyuki , Kobayashi Yuichi , Sato Fumie 
Published: July 2006

Abstract
First enantiospecific synthesis of dimorphecolic acid is accomplished via an efficient and stereocontrolled route. The convenient synthesis of 5(S)-HETE and 12(S)-HETE is also described.
A New Ultra-thin Film of Solid Polymer Electrolyte Prepared by Plasma Polymerization
Authors: Ogumi Zempachi , Uchimoto Yoshiharu , Takehara Zen-ichiro 
Published: July 2006

Abstract
An ultra-thin polymer film containing sulfonic ester group is prepared by polymerization of methyl benzenesulfonate and octamethylcyclotetrasiloxane in glow discharge. The sulfonic ester group is transformed to lithium sulfonate group by the treatment with LiI. Hybridization of plasma polymer containing lithium sulfonate group with poly(ethylene oxide) forms only lithium ion conductive films.
Configurational Correlations of Some Secondary Alcohols by 1H NMR Spectroscopy
Authors: Takano Seiichi , Takahashi Michiyasu , Yanase Masashi , Sekiguchi Yoshinori , Iwabuchi Yoshiharu , Ogasawara Kunio 
Published: July 2006

Abstract
Examination of 1H NMR of the MTPA esters of 21 examples of secondary alcohols allows facile correlations of the absolute configuration of the substrates without exception.
X-Ray Structural Study of a 1:2:1 Inclusion Complex of Non-centrosymmetric 1,6,9,14-Tetrahydroxy-1,6,9,14-tetra-t-butylcyclohexadeca-2,4,7,10,12,15-hexayne, Ethanol, and Water
Authors: Toda Fumio , Okada Koji , Mak Thomas C W 
Published: July 2006

Abstract
The structure of the title cyclic hexayne has been elucidated by X-ray analysis of its 1:2:1 inclusion complex with EtOH and H2O. The important role of H2O in consolidating the disordered, hydrogen-bonded host lattice is also clarified.
Synthesis and Characterization of a New Class of Organo-polynuclear Complexes Containing Cationic Palladium Atoms
Authors: Onitsuka Kiyotaka , Ogawa Hiroo , Joh Takashi , Takahashi Shigetoshi 
Published: July 2006

Abstract
Cationic organopalladium complexes having an extended structure are described as a new class of organo-polynuclear complexes containing ionic transition metals with regular arrangement in the main chain.
Crystal Structures of Compounds Obtained from Lead(II) Iodide-Hexamethylenetetramine System, [C6H13N4]2[Pb3I8(C6H12N4)2] and [C6H13N4][PbI3M3]
Authors: Miyamae Hiroshi , Nishikawa Hidetsugu , Hagimoto Koichi , Hihara Goro , Nagata Miharu 
Published: July 2006

Abstract
Formamide solution of lead(II) iodide (Pbl2) with hexamethylenetetramine (hmta) gave [C6H13N4]2[Pb3I8(C6H12N4)2], while reaction of PbI2 with hmta through intervention of water produced [C6H13N4][PbI3]. From characterization of the crystals by X-ray diffraction, hmta appears to tend to be protonated cations, but one of hmta is coordinated to Pb atom in the former compound.
Structural Control of the Prussian Blue–Nafion Composite Membrane
Authors: Honda Kenji , Hayashi Hideko , Chiba Kazuyuki 
Published: July 2006

Abstract
On the complex formation of Prussian Blue (PB) in a solid matrix of Nafion membrane (Nf), it was possible to control a structure of the PB–Nf composite membrane by regulating the rate and direction of diffusion in the solid phase of two component ions, Fe2+ and Fe(CN)63−.
Mode of Degradation of Homopolyribonucleotides by PDM Phosphatase of Fusarium moniliforme
Authors: Yoshida Hiroshi , Konno Osamu 
Published: July 2006

Abstract
PDM phosphatase degrades homopolyribonucleotides, poly(A), poly(I), poly(C), and poly(U). The former three are degraded exonucleolytically into nucleoside and inorganic phosphate through 5′-nucleotide. In the case of poly(U), the enzyme acts endonucleolytically and exonucleolytically at the same time.
Heterogeneous Catalysts for the Continuous Oxidation of Benzene to Phenols
Authors: Kunai Atsutaka , Ishihata Koji , Ito Sotaro , Sasaki Kazuo 
Published: July 2006

Abstract
The catalytic oxidation of benzene in the presence of air and reducing gases has been examined. All the catalysts studied, active carbon, several forms of platinum, zeolite of Cu form, and Pd/silica, were found to be effective for reducing Cu(II) to Cu(I) and thereby producing phenols. Among these, Pd/silica showed the best performance and is capable for practical use.
Studies on the Molecular Overturn during Compulsory Z-Type Deposition of LB Films Using Double Gates
Authors: Kato Teiji 
Published: July 2006

Abstract
Overturn of molecules during the compulsory Z-type deposition using double gates was investigated by in-situ photopolymerization of a film material and by contact angle measurements of resultant LB films with water. The experimental results made inferable that molecules should overturn three times in total for every two cycles of the compulsory Z-type deposition.
Preparation of High-Tc Bi–Sr–Ca–Cu–O Films on Metal Substrates by Pyrolysis of 2-Ethylhexanoates
Authors: Makida Seigo , Nasu Hiroyuki , Miyamoto Aiko , Imura Takeshi , Osaka Yukio , Shiono Takeo , Nakamoto Takao 
Published: July 2006

Abstract
High-Tc superconducting Bi–Sr–Ca–Cu–O films were prepared on some metal substrates by pyrolysis of 2-ethylhexanoates. Although a high-Tc superconducting phase could seen for the films on stainless steel or silver substrates, only the films on silver substrates showed diamagnetism below 73 K and Tc(end)=68 K.
Regioselective Methylation of Epoxides Using Transition Metal Complexes
Authors: Hase Toshiya , Miyashita Akira , Nohira Hiroyuki 
Published: July 2006

Abstract
M(PPh3)4 (M= Ni, Pd, Pt) promoted regioselective methylation of 1,2-epoxy-2-methylpropane with methyl iodide affording 2,2-dimethylpropanol. In the course of the reaction, \ ranstrans-CH3MI(PPh3)2, initially formed from the reaction of M(PPh3)4 with CH3I, attacked the epoxide electrophilicly resulting regioselective cleavage of the C–O bond of the epoxide, followed by the formation of the isolable 2,2-dimethylpropoxymetal complexes.
Methane Oxidation over Perovskite-type Oxide Containing Alkaline-earth Metal
Authors: Nagamoto Hidetoshi , Amanuma Kazushi , Nobutomo Hiroyuki , Inoue Hakuai 
Published: July 2006

Abstract
Perovskite-type oxides(ABO3) containing alkaline-earth metal Ba or Sr exhibited fairly good catalytic activity for oxidative coupling of methane to ethane and ethylene. These oxides were stable against produced carbon dioxide at 1023 K. The catalytic activity was well correlated with the A ion and the difference of the interatomic distance from the equilibrium distance.
Selective Hydrogenation of Internal and Terminal C≡C Bonds on Rare Earth Catalysts Formed by Metal Vapor Deposition
Authors: Imamura Hayao , Kitajima Keiji , Tsuchiya Susumu 
Published: July 2006

Abstract
The rare earth catalysts obtained when Sm and Yb were vaporized into a frozen organic matrix exhibited selective hydrogenation of various acetylenic derivatives. Sm/THF and Yb/THF discriminated between internal and terminal triple bonds.
Photopreparation of Heterogeneous Metathesis Catalysts from Metal Carbonyls Adsorbed on Solids
Authors: Wada Yuji , Nakaoka Chikanori , Morikawa Akira 
Published: July 2006

Abstract
It was demonstrated that Mo(CO)6 and W(CO)6 adsorbed on solid supports, such as porous Vycor glass and NaY zeolite, were photoactivated to be catalytically active for propene metathesis.
Synthesis of Sodium Tetramethylammonium Pentamolybdodisulfate(VI)(4-) Trihydrate, Na[(CH3)4N]3S2Mo5O23·3H2O
Authors: Himeno Sadayuki , Hori Toshitaka , Tanaka Hiroshi , Saito Atsuyoshi 
Published: July 2006

Abstract
Colorless heteropoly molybdosulfate was isolated as sodium tetramethylammonium (Me4N+) salt Na[(CH3)4N]3S2Mo5O23·3H2O from the Mo(VI)/H2SO4/C2H5OH system. The presence of C2H5OH in the system favored the formation of the colorless complex rather than the previously reported yellow complex. The colorless complex was characterized by chemical analysis and IR spectroscopic measurements.
Stereoselective Rearrangement of Chiral Acylisoureas and a Model for the Transition State
Authors: Yamada Kazutoshi , Kishikawa Keiki , Kohmoto Shigeo , Yamamoto Makoto 
Published: July 2006

Abstract
A first transition state model for the rearrangement of acylisoureas is proposed from the stereoselectivity of the reaction with chiral acylisoureas.
Dissociative Ligand Exchange in Organoplatinum(II) and -gold(III) Complexes Having a Nucleoside Ligand. Dynamic NMR as a Mechanistic Probe for Ligand Exchange Process
Authors: Komiya Sanshiro , Mizuno Yuuko , Shibuya Tomohiro 
Published: July 2006

Abstract
Application of simple dynamic NMR technique to intermolecular ligand exchange reactions in dimethylchloro(guanosine)gold(III) and [ethyl(1,5-cyclooctadiene)(cytidine)platinum(II)]+ reveals that both reactions proceed by a dissociative mechanism.
Synthesis and Molecular Structure of Tetrathia[34](1,2,4,5)cyclophane
Authors: Asoh Toshiaki , Tani Keita , Higuchi Hiroyuki , Kaneda Takahiro , Tanaka Takanori , Sawada Masami , Misumi Soichi 
Published: July 2006

Abstract
The titled tetrathiacyclophane was prepared by improved synthetic methods and its molecular structure previously reported was corrected by 1H-NMR and X-ray analyses.
cis–trans Isomerization of 1,2-Bis(4-methoxyphenyl)cyclopropanes via a Cationic Chain Mechanism
Authors: Toki Susumu , Komitsu Shintaro , Tojo Sachiko , Takamuku Setsuo , Ichinose Nobuyuki , Mizuno Kazuhiko , Otsuji Yoshio 
Published: July 2006

Abstract
Radiation-induced cis–trans isomerization of 1,2-bis(4-methoxyphenyl)cyclopropanes(CP) has been investigated in benzonitrile solution. The isomerization from cis-CP to trans-CP proceeded efficiently (G = 80) via a cationic chain mechanism. Three types of transient species were spectroscopically detected by pulse radiolysis and γ-irradiated low-temperature matrix studies. The reaction mechanisms are discussed on the basis of these direct observations.
Decarbonylation Reaction of Dimethylformaraide (DMF) with trans-[W(N2)2(dpe)2] (dpe = Ph2PCH2CH2PPh2). Preparation and Characterization of [WH(η2-CONMe2)(dpe)2] and [W(CO)(DMF)(dpe)2]
Authors: Ishida Toyohisa , Mizobe Yasushi , Tanase Tomoaki , Hidai Masanobu 
Published: July 2006

Abstract
When treated with dimethylformaraide (DMF) in benzene at reflux, trans-[W(N2)2(dpe)2] (dpe = Ph2PCH2CH2PPh2) afforded [WH(η2-CONMe2)(dpe)2] and [W(CO)(DMF)(dpe)2]. The structure of the former was fully characterized by X-ray crystallography. The latter reacted with N2 to give trans-[W(CO)(N2)(dpe)2].
Diversity in Modes of Reactions of (η3-1-Trimethylsiloxyallylic)Fe(CO)2NO Complexes. Nucleophilic Addition and Cyclization on the Allylic Ligands
Authors: Ito Keiji , Nakanishi Saburo , Otsuji Yoshio 
Published: July 2006

Abstract
The titled iron complexes derived from 3-iodo-1-trimethylsiloxypropenes and [Bu4N][Fe(CO)3NO] reacted with carbon nucleophiles such as NaCH(CO2Et)2 to give the corresponding nucleophile addition products in high yields. The addition occurred at the 3-position of the ligands with high regioselectivity. However, the iron complexes derived from 2-alkyl-3-iodo-1-trimethylsiloxypropenes underwent cyclization reaction with the same siloxypropenes to give dihydropyran derivatives. The diversity in the modes of reactions of the iron complexes are discussed.
1H-Nuclear Magnetic Resonance Study of 6-O-α-d-Glucopyranosyl α-Cyclodextrin - para-Nitrophenol Inclusion Complex
Authors: Yamamoto Yasuhiko , Kanda Yoshihiro , Inoue Yoshio , Chûjô Riichiro , Kobayashi Shoichi 
Published: July 2006

Abstract
6-O-α-d-Glucopyranosyl α-cyclodextrin - para-nitrophenol host–guest inclusion complex has been characterized by high resolution 1H-NMR. Analysis on the NMR spectral parameters of the anomeric proton resonances of the host molecule has revealed that the asymmetric nature of 6-O-α-d-Glucopyranosyl α-cyclodextrin molecule is further enhanced by the complexation with para-nitrophenol, indicating an induced-fit type conformational change induced on the host upon the complexation.
Hydrogenation of Carbon Monoxide over Mixed Oxide Supported 50Co50Ni Alloy Catalysts
Authors: Horiuchi Nobuhiko , Ishihara Tatsumi , Eguchi Koichi , Arai Hiromichi 
Published: July 2006

Abstract
Mixed oxide supported 50Co50Ni alloy catalysts were studied for hydrogenation of carbon monoxide. Alloy catalysts of 50Co50Ni supported on the mixed oxides of ZrO2–MnO and Nb2O5–TiO2 exhibited extremely high CO conversion. Moreover the chain growth was strongly promoted and methanation was greatly suppressed. Effects of support composition and reaction temperature on the activity and selectivity were also studied with the alloy catalyst on ZrO2–MnO system which was superior to gasoline synthesis. It turned out that mixing oxides for support was extremely useful to design the active catalysts for gasoline synthesis from CO hydrogenation.
Optical Detection of Nitrogen Monoxide by Metal Porphine Dispersed in Amorphous Silica Film
Authors: Arai Hiromichi , Eguchi Koichi , Hashiguchi Takashi 
Published: July 2006

Abstract
New optical detection of nitrogen monoxide was developed using cobalt α, β, γ, δ-tetrakis (5-sulfothienyl) porphine which was doped in a silica thin film by a sol–gel method. The absorption band at λ=420 nm was weakened significantly by a contact with gaseous NO at 200 °C but was not sensitive to O2 and CO. The band change was completely reversible and depended on the pressure of NO in the pressure range of 1.3 to 3.2×103 Pa.
Long Optical Path Length Thin-Layer Spectrochemistry Potential Dependence and Quantitation of 1H-Purine-6-amine Adsorbed on Gold
Authors: Kusu Fumiyo , Kuwana Theodore 
Published: July 2006

Abstract
The potential dependence of 1H-Purine-6-amine(=adenine) adsorption on a Au electrode in phosphate buffer(pH 7) and the surface excess were studied using a long optical path length thin-layer cell. The maximum adsorption of adenine occurred at 0.3 V vs. Ag/AgCl. In order to determine surface excess, a single filling experiment was advantageous compared to the conventional multiple-filling procedure.
The Azaphospha-Cope Rearrangement of 2-Aza-3-phospha-1,5-hexadiene Derivatives
Authors: Kawashima Takayuki , Kihara Tsutomu , Inamoto Naoki 
Published: July 2006

Abstract
The 1-substituted title compounds can undergo the azaphospha-Cope rearrangement to give the corresponding (3-butenylimino)phosphine derivatives, which can be trapped by hexanol to afford the corresponding hexyl phenyl(3-butenylamido)phosphonates predominantly, whereas 1,1-disubstituted ones give the nucleophilic substitution products mainly. The activation parameters are presented for the reaction of 1-(4-nitrophenyl) derivative.
Electric Conductive ZnO Particles Microcapsulated with Carbon Film
Authors: Okuma Nobuyuki , Uchida Shuji , Ogura Hiroyuki , Kato Masanori 
Published: July 2006

Abstract
A new method has been developed for imparting electric conductivity to ZnO particles. The conductive particles are obtained by treating pure ZnO particles with a hydrocarbon at a temperature of- or higher than 500 °C and depositing a 1 nm thick film of carbon. Resulting products are comparable regarding conductivity, particle size, and whiteness with the Sb-doped conductive SnO2 particles currently in market. In addition, they are advantageous in that they can be produced at a much lower cost due to the simplifie production process and lower material costs.
Crystal Structure of Chloro-Bridged One-Dimensional Mixed-Valence Gold Complex with Empirical Formula [AuCl2{S(C7H7)2}]
Authors: Takahashi Kazuhiro , Tanino Hiroshi 
Published: July 2006

Abstract
The crystal structure of the title compound is determined by X-ray analysis. The chloro-bridged one-dimensional structure is identified. The bridging chlorine atom has a positional disorder in the crystal. The two one-dimensional chains stack in a face-to-face form with an interchain distance of 3.32 Å.
Syntheses and Cytotoxicity of Various 7-Methoxynogarene Derivatives
Authors: Matsuda Fuyuhiko , Kawasaki Motoji , Ohsaki Masako , Yamada Kaoru , Terashima Shiro 
Published: July 2006

Abstract
The title compounds were prepared employing the regioselective cycloaddition of the (+)-naphthoquinone derivative, the CDEF-ring system of nogalamycin, with various homophthalic anhydrides. Among the 7-methoxylnogarene derivatives obtained, 7-methoxy- and 9-hydroxy-7-methoxy-9-demethylnogarene and their 2′,4′-diacetates were found to show prominent in vitro cytotoxicity against P388 murine leukemia.
1,2,3-Trithiole, 1,2,3-Triselenole, and 1,2,5-Thiadiselenole. Novel Ring Systems Derived from Sterically Protected 1,2,3-Selenadiazole
Authors: Tokitoh Norihiro , Ishizuka Hitoshi , Ando Wataru 
Published: July 2006

Abstract
Thermal reactions of sterically protected 1,2,3-selenadiazole with elemental sulfur and selenium resulted in a formation of very stable 1,2,3-trithiole and 1,2,3-triselenole. Novel 1,2,5-thiadiselenole was also obtained by the sulfurization of the 1,2,3-triselenole.
Allyl Benzenesulfenates in Isomeric Forms
Authors: Tanikaga Rikuhei , Kaji Aritsune 
Published: July 2006

Abstract
Allyl benzenesulfenates containing an electron-withdrawing group at the conjugated position were prepared in isomeric forms which would be stabilized by partial bonding between the C=C bond and two lone pairs of electrons on the sulfur atom.
Double C–H Activation. Dimerization of Esters Catalyzed by RhCl(CO)(PMe3)2 under Irradiation
Authors: Sakakura Toshiyasu , Sodeyama Touru , Tanaka Masato 
Published: July 2006

Abstract
Dehydrogenation of methyl propionate yielded methyl 4-propionyloxybutyrate (head-to-tail dimer) by photocatalysis in the presence of RhCl(CO)(PMe3)2 at room temperature. Methyl aerylate is presumed to be an intermediate.
Oxidative Coupling of Methane over Ultrafine Crystalline MgO Doped with Li. Role of Lower Coordinative Surface Sites Produced by Li-doping
Authors: Anpo Masakazu , Sunamoto Masatoshi , Doi Takao , Matsuura Ikuya 
Published: July 2006

Abstract
A good parallel between the intensity of newly observed photoluminescence at around 450 nm with Li-doped MgO catalysts and their activity for oxidative coupling of methane was found, indicating that lower coorinative surface sites produced by incorporation of Li into MgO play a significant role in methane oxidative coupling.
Regiochemical Correlation between 6-O-Sulfonylated Cyclodextrins and 3-O-Sulfonylated Cyclodextrins via 3,6-Anhydrocyclodextrins
Authors: Fujita Kahee , Tahara Tsutomu , Egashira Yoshimitsu , Yamamura Hatsuo , Imoto Taiji , Koga Toshitaka , Fujioka Toshihiro , Mihashi Kunihide 
Published: July 2006

Abstract
(3R)-2,3-Anhydrocyclodextrins which were prepared from 3-O-sulfonylcyclodextrins were treated with aqueous alkali to give 3,6-anhydrocyclodextrins, which were prepared by the reaction of 6-O-sulfonylcyclodextrins with aqueous alkali. This regiochemical correlation was applicable to regioisomer determination of 3-O-disulfonylcyclodextrins on the basis of the regiochemistry of 6-O-disulfonates.
9,10-Dicyanoanthracene-Sensitized NO Insertion into Cyclopropane Ring via Photoinduced Electron Transfer
Authors: Ichinose Nobuyuki , Mizuno Kazuhiko , Yoshida Katsuhiko , Otsuji Yoshio 
Published: July 2006

Abstract
9,10-Dicyanoanthracene-sensitized photoreaction of electron-rich 1,2-diarylcyclopropanes with NO in acetonitrile afforded 3,5-diaryl-2-isoxazolines in good yields. The cyclopropanes bearing different aryl-substituents gave a mixture of two isomeric 2-isoxazolines. Mechanistic features of this reaction are described.
Kinetic Evidence for Proton Release and Uptake on Complexation between Two Polypeptides
Authors: Nakatsuka Thoru , Sano Takayuki 
Published: July 2006

Abstract
In kinetic experiments on complexation between poly(l-glutamic acid) and poly(l-lysine), slower proton uptake followed by fast proton release was found. Further, it was elucidated by the experiments using the polymers and small molecules having one or two ionizable groups that combination of the polymer and at least divalent ions was necessary for the proton release and uptake.
Reduction of Ethylenic Insaturations by in situ Generated Hydrogen
Authors: Fort Y , Vanderesse R , Caubere P 
Published: July 2006

Abstract
Selective hydrogenation of carbon–carbon double bond can be easily performed by simultaneous addition of substrate and Me3SiCl or water to NiCRA. It is shown that it is possible to reduce dienes selectively in olefins and carbon–carbon double bond in the presence of carbonyl, ester or acid groups.
Synthesis of a 3 (2H)-Furanone Derivative from Propargylic Alcohol, CO, and Phenyl Halide Catalyzed by Transition Metal Complexes
Authors: Inoue Yoshio , Taniguchi Masaaki , Hashimoto Harukichi , Ohuchi Kunihiro , Imaizumi Shin 
Published: July 2006

Abstract
2-Methyl-3-butyn-2-ol reacted with CO and phenyl halides in the presence of a catalytic amount of transition metal complexes to afford 2,2-dimethyl-5-phenyl-3 (2H)-furanone (bullatenone) under the influence of CO2.
A New Effective and Convenient Route to Fluorinated Nitrogen Heterocyclic Compounds by the Use of Enol Phosphates Derived from F-Alkyl Ketones
Authors: Ishihara Takashi , Okada Yoshiji , Kuroboshi Manabu , Shinozaki Takao , Ando Teiichi 
Published: July 2006

Abstract
The treatment of F-alkyl ketones with sodium diethyl phosphite in tetrahydrofuran at −10 to 0 °C gave high yields of 1-substituted F-1-alkenyl phosphates, which readily reacted with amidine or hydrazine derivatives at room temperature to afford the corresponding fluorinated pyrimidines or pyrazoles, respectively, in good to excellent yields.
Enantioselective Synthesis of erythro-β-Hydroxy-l-histidine, the Pivotal Amino Acid of Bleomycin–Fe(II)–O2 Complex
Authors: Owa Takashi , Otsuka Masami , Ohno Masaji 
Published: July 2006

Abstract
erythro-β-Hydroxy-l-histidine, a novel amino acid constituent of bleomycin, has been synthesized enantioselectively via the reaction of (N-pyruvylideneglycyl-d-phenylalaninato)copper(II) with imidazole-4-carbaldehyde.
Cyanide-Coordination Effect on Photochemical Carbon-Skeleton Rearrangements of Alkyl Ligands Coordinated to Vitamin B12 Model Complexes
Authors: Murakami Yukito , Hisaeda Yoshio , Ozaki Toshiaki , Ohno Teruhisa , Fan Sheng-Di , Matsuda Yoshihisa 
Published: July 2006

Abstract
The cyanide ion induced the heterolytic cleavage of the cobalt–carbon bond involved in vitamin B12 model complexes by its coordination to the central cobalt atom and enhanced the carbon-skeleton rearrangements via formation of anionic intermediates under anaerobic irradiation with the visible light.