bluuebunny/crossref_metadata_2025_split huggingface dataset:
Two Reaction Paths at Different Temperatures in the Reduction of Nitrogen Monoxide with Hydrogen over Supported Palladium Catalysts
Authors: Ueda Atsushi , Nakao Takayuki , Azuma Masashi , Kobayashi Tetsuhiko 
Published: September 2003

Abstract
Two conversion maxima at 373K and 573K have been found to appear in the NO reduction with H2 over metal oxides supporting Pd, when O2 is present in the stream of reactants. At the lower temperature, NO directly reacts with H2, but primarily produced NO2 on the catalyst can successively react with H2 in preference to the simple combustion of H2 at the higher temperature.
Pertraction of Hydrophobic Organic Solutes with a Hydrophobic Membrane
Authors: Igawa Manabu , Abe Toshiyuki , Okochi Hiroshi 
Published: September 2003

Abstract
Pertraction of hydrophobic organic solutes with a hydrophobic membrane is a continuous separation process, which can be used as a substitute of activated carbon. The permeability was affected by the hydrophobicity of the solute and the dissociation in the receiving phase. The pertraction of a hydrophobic solute against its concentration gradient is also possible under a concentration gradient of hydroxide ion.
Self Assembled Growth of Nano Particulate Porous ZnO Thin Film Modified by 2,9,16,23-Tetrasulfophthalocyanatozinc(II) by One-Step Electrodeposition
Authors: Yoshida Tsukasa , Miyamoto Kenichi , Hibi Naomi , Sugiura Takashi , Minoura Hideki , Schlettwein Derck , Oekermann Torsten , Schneider Gerhard , Wöhrle Dieter 
Published: September 2003

Abstract
A cathodic electrolysis in an aqueous mixture of Zn(NO3)2 and water soluble phthalocyanine, 2,9,16,23-tetrasulfophthalocyanatozinc(II)(TSPcZn), allows self organization of ZnO crystal growth and adsorption of the dye molecules. This process results in the formation of transparent and homogeneously blue thin film consisting of nano-particulate porous ZnO modified by TSPcZn.
Synthesis and Properties of Bis(5-alkoxytropolonato) Metallomesogens
Authors: Mori Akira , Takemoto Manabu , Mori Ryoji , Takeshita Hitoshi , Ujiie Seiji , Vill Volkmar 
Published: September 2003

Abstract
Bis(5-alkoxytropolonato)copper(II) complexes showed mesogenic properties. The corresponding zinc(II) complexes were not mesogenic although they have lower melting points than the copper complexes. The longer alkyl chains enhanced the appearance of highly ordered smectic phases and secondary alkyl chains reduced mesogenic properties.
Preparation and Conformational Properties of 1,8-Bridged Fluorenophanes
Authors: Tsuge Akihiko , Araki Tadashi , Noguchi Yuji , Yasutake Mikio , Moriguchi Tetsuji , Sakata Kazunori 
Published: September 2003

Abstract
Novel 1,8-bridged fluorenophanes consisting of benzene, benzoquinone, or naphthalene ring have been prepared. Their conformational properties are clarified by the NMR spectra and the X-ray analysis, especially in terms of a shielding effect on 9-protons of the fluorene unit. The dynamic structure was also examined by the variable-temperature NMR spectroscopy.
Synthesis and Photophysical Behavior of Porphyrins with Two C60 Units
Authors: Higashida Suguru , Imahori Hiroshi , Kaneda Takahiro , Sakata Yoshiteru 
Published: September 2003

Abstract
Two C60 units were covalently linked to 5,10-(cis-) or 5,15-(trans-) positions at a meso-tetraphenylporphyrin via pyrolidine spacers. 1H NMR, UV-visible absorption, and fluorescence spectroscopy showed that there is a considerable interaction among the chromophores in cis-isomers due to the close proximity of the two C60 moieties.
Synthesis of Dihydropyrroles and Tetrahydropyridines by the Intramolecular Cyclization of O-Methylsulfonyloximes Having an Active Methine Group
Authors: Uchiyama Katsuya , Yoshida Masayuki , Hayashi Yujiro , Narasaka Koichi 
Published: September 2003

Abstract
3,4-Dihydro-2H-pyrroles and 2,3,4,5-tetrahydropyridines are prepared from (E)-O-methylsulfonyloximes having an active methine group at γ- and δ-positions, respectively, by the treatment with DBU.
Photoionization Threshold of Perylene on Water Surface as Measured by Synchrotron Radiation
Authors: Inoue Takanori , Sasaki Shin-ya , Tokeshi Manabu , Ogawa Teiichiro 
Published: September 2003

Abstract
Photoionization efficiency of perylene on water surface was measured in the 165-260 nm region by synchrotron radiation. The photoionization threshold was determined to be 5.9 eV and agreed well with that determined in the laser two-photon ionization. This finding indicates that the water surface is more hydrophobic than its bulk.
Exfoliation of Layered Oxovanadium Phosphate VOPO4·2H2O in Tetrahydrofuran through Intercalation of 4-Butylaniline
Authors: Nakato Teruyuki , Furumi Yoko , Okuhara Toshio 
Published: September 2003

Abstract
VOPO4 intercalated with 4-butylaniline was exfoliated in THF to form a homogeneous solution, thereby yielding delaminated sheets. The exfoliated oxide layers were reassembled into a thin film morphologically much differed from the intercalation compound.
Preparation of New Poly(phenylene vinylene) Type Polymers by Ni-promoted Polycondensation and Their Photoluminescent Properties
Authors: Yamamoto Takakazu , Xu Yuqing , Koinuma Hideomi 
Published: September 2003

Abstract
Poly(p-phenylene vinylene) type polymers having biphenyl-4,4′-diyl units have been prepared by organometallic polycondensation. They are photoluminescent and electrochemically active, and are considered to take a stacked and liquid crystalline structure depending on the substituent.
A New Practical and Convenient Access to the Synthesis of N,N-Dialkyl-3,3,3-trifluoropropanamides
Authors: Yamanaka Hiroki , Mantani Toshiya , Shiomi Keisuke , Ishihara Takashi 
Published: September 2003

Abstract
N,N-Dialkyl-3,3,3-trifluoropropanamides were readily synthesized in good to excellent yields through N,N-dialkyl(3,3,3-trifluoro-1-propynyl)amines, which were generated by the reaction of N,N-dialkyl(2,2,3,3,3-pentafluoropropyl)- or -(2,3,3,3-tetrafluoro-1-propenlyl)amines with lithium diisopropylamide in the presence or absence of N,N′-dimethylpropyleneurea at room temperature or 0 °C.
New Twin-Type Troponoid Liquid Crystals with a Smectic C Phase
Authors: Mori Akira , Takemoto Manabu , Vill Volkmar 
Published: September 2003

Abstract
Twin-type troponoid liquid crystals show a monotropic smectic C phase while the corresponding benzenoids are non-mesogenic. The corresponding troponoid monomers, show a monotropic smectic A phase, could form a head-to-tail alignment. In the twins, molecules have to shift to form a head-to-tail alignment since the dipole moment of the two tropolone parts directs oppositely.
New Inorganic-Organic Hybrid Li+ Ion Conducting Polymer Electrolytes
Authors: Fujinami Tatsuo , Sugie Kazuhiro , Mori Kenji , Mehta Mary Anne 
Published: September 2003

Abstract
A new series of inorganic-organic hybrid polymer electrolytes containing the aluminate structure were prepared. Incorporation of stronger Lewis acid sites into the polymer in the region of the aluminate bond was effective for enhancing ionic conductivity. The materials were shown to be single Li+ ion conductors.
Copper as an Effective Additive for Enhancement of Catalytic Activity of Cs2.5H1.5PVMo11O40 for Selective Oxidation of Lower Alkanes
Authors: Mizuno Noritaka , Han Wonchull , Kudo Tetsuichi 
Published: September 2003

Abstract
Copper was found to be an effective additive to increase the yield of the selective oxidation products likely due to the promotion of the reoxidation of the catalyst.
Chlorinative Cleavage of Digermoxanes Initiated by Photo-induced Electron Transfer
Authors: Mochida Kunio , Takekuma Kakumasa , Watanabe Hideaki , Murata Shigeo 
Published: September 2003

Abstract
Irradiation of digermoxanes(R3GeOGeR3) in CCl4-CH3CN in the presence of 1,2-dicyanonaphthalene (DCN) afforded chlorogermanes, digermyperoxides, and hexachloroethane. Fluorescence of DCN was quenched by R3GeOGeR3 with a rate of 109 M−1s−1 order. A mechanism of free-radical chlorination involving R3GeOGeR3 cation radicals is proposed.
A New Water-Soluble Host Molecule Derived from Thiacalixarene
Authors: Iki Nobuhiko , Fujimoto Toyohisa , Miyano Sotaro 
Published: September 2003

Abstract
A new water soluble host molecule, thiacalix[4]arenetetrasulfonate(TCAS), was obtained by direct sulfonation of p-tert-butylthiacalix[4]arene. TCAS showed size- and shape-selectivity to bind small chlorinated organic molecules in its hydrophobic cavity by a 1:1 or 1:2 manner in aqueous solution.
Evaluation of Avidin-Biotin Binding Using a Biotin Labeled with Daunomycin by Photoacoustic Spectrometry
Authors: Sugawara Kazuharu , Yamaguchi Yuuki , Nago Masaharu , Futamata Masami , Hoshi Suwaru , Akatsuka Kunihiko 
Published: September 2003

Abstract
A method of evaluation for avidin-biotin binding using photoacoustic spectrometry (PAS) was developed. Biotin labeled with daunomycin was prepared. The avidin-biotin binding between avidin and the labeled biotin (LB) makes avidin colored. This is because the part of daunomycin is taken in biotin sites of avidin. Therefore, the concentration of avidin could be estimated based on measurement of the LB with avidin by PAS.
Cross-correlation TOF Method by Pseudorandom Pulse Discharge
Authors: Kawaguchi Hisashi , Ohoyama Hiroshi , Kasai Toshio 
Published: September 2003

Abstract
A new cross-correlation time-of-flight (CC-TOF) method for pulsed metastable atom beam is demonstrated. In this method, we modulate the grid voltage for the metastable atom formation with pseudorandom pulse sequence instead of mechanical chopping. The TOF spectrum convoluted from the observed CC-TOF spectrum is found to nicely reproduce the conventional TOF spectrum, indicating useful applicability of the new method.
Self-Coextraction of Sodium Ions with Calix[4]arene Tetracarboxylate
Authors: Ohto Keisuke , Ishibashi Hideaki , Inoue Katsutoshi 
Published: September 2003

Abstract
Solvent extraction of sodium ions with p-t-octylcalix[4]arene tetracarboxylate from an aqueous solution containing sodium ions (0.1 mol dm−3) into chloroform was investigated. It was found that two sodium ions are simultaneously extracted by a single molecule of the extractant and that extraction of the second sodium ion is facilitated by the complexation of the first with the calix[4]arene derivative. The extraction behavior of sodium ions strongly supports the coextraction mechanism of sodium and another metal ion with calix[4]arene tetracarboxylate.
Electrochemistry of a Fullerene/Ammonium Lipid Composite Film on an Electrode in Water. Generation of C603−
Authors: Nakashima Naotoshi , Kuriyama Takuto , Tokunaga Takeshi , Murakami Hiroto , Sagara Takamasa 
Published: September 2003

Abstract
We describe for the first time the finding that C60 embedded in a cast film of triple-chain ammonium lipid, tridodecylmethylammonium bromide, on an electrode shows three-consecutive one-electron transfer processes leading to C603− in aqueous solution.
Highly Stereoselective Synthesis of 1,2-trans-Glycosides Using p-Chlorobenzylated Glycosyl Carbonate as Glycosyl Donor
Authors: Mukaiyama Teruaki , Miyazaki Kazuo , Uchiro Hiromi 
Published: September 2003

Abstract
A new and efficient method for catalytic stereoselective synthesis of 1,2-trans-glycosides was successfully established by use of 2,3,4,6-tetra-O-p-chlorobenzyl-β-D-glucopyranosyl phenyl carbonate as a stable and easily-available glycosyl donor. Several β-D-glucopyranosides were prepared in good yields with high stereoselectivities.
SiO2 Catalyzed Henry Reaction: Microwave Assisted Preparation of 2-Nitroalkanols in Dry Media
Authors: Kumar H M Sampath , Reddy B V Subba , Yadav J S 
Published: September 2003

Abstract
Nitroalkanes undergo rapid addition to aromatic aldehydes (Henry reaction) on the surface of activated SiO2, when irradiated with microwave, to afford 2-nitroalkanols in moderate to high yields.
Photo-thermally Induced Phase Transition in Vanadyl Phthalocyanine Thin Film
Authors: Amao Yutaka , Sato Osamu , Fujishima Akira , Hashimoto Kazuhito 
Published: September 2003

Abstract
A vanadyl phthalocyanine (VOPc) film (Phase I) on a mica substrate was prepared and photoinduced phase transition of VOPc was tried. Changes in absorption spectra show that Phase I structure is converted to Phase II structure by the irradiation with He-Ne laser. The surface structural changes of VOPc were also observed by using atomic force microscopy (AFM). Experimental results suggest that the phase transition was induced by photo-thermal processes.
Evidence for Ionic Intermediates in Fluorination of Alkenes with N–F Type of Reagents
Authors: Zupan Marko , Škulj Primoz , Stavber Stojan 
Published: September 2003

Abstract
2-Exo-acetamido-7-syn-fluoro norbornane and 2-exo-acetamido-7-anti-fluoro norbornane were formed in the room temperature reaction of bicyclo[2.2.1]heptene in acetonitrile with N–F type reagents [1-chloromethyl-4-fluoro-1,4-diazoniabicyclo[2.2.2]octane bis(tetrafluoroborate) (F–TEDA), 1-fluoro-4-hydroxy-1,4-diazoniabicyclo[2.2.2]octane bis(tetrafluoroborate) (NFTh) and 2,6-dichloro-1-fluoropyridinium triphlate (FPD–T)]. Such Meerwein-Wagner rearrangement and hydride shift indicated the formation of fluoro carbonium ions.
The First Direct Detection of Rapid Migration of Acidic Protons between Heteropolyanions in H3PW12O40·nH2O (n &lt; 6) by 31P NMR
Authors: Uchida Sayaka , Inumaru Kei , Dereppe Jean M , Misono Makoto 
Published: September 2003

Abstract
The dynamic behavior of the acidic protons in a hydrated pseudoliquid phase of H3PW12O40·nH2O (n &lt; 6) was analyzed by means of 31P magic-angle spinning (MAS) NMR. With this method the “isolated” acidic protons on heteropolyanions were distinguished from protons in H3O+ and H5O2+. At 173 K, as evidenced by four 31P MAS NMR peaks, these “isolated” protons were distributed among polyanions so that heteropolyanions directly bonding to 0, 1, 2, and 3 isolated acidic protons(s) coexist. At 298 K, these peaks coalesced, directly demonstrating for the first time the rapid migration of the isolated protons between heteropolyanions.
Syntheses of 4,5-Dihydroselenophenes by Using TiCl4 and Zn
Authors: Koketsu Mamoru , Miyajima Yasutaka , Ishihara Hideharu 
Published: September 2003

Abstract
Se-3-oxoalkyl-selenocarboxlates on treatment with TiCl4 and Zn afforded 4,5-dihydroselenophenes in moderate yields.
Formation of Copper Phthalocyanine Films by Electrophoretic Deposition
Authors: Sato Naoki , Saji Tetsuo 
Published: September 2003

Abstract
A copper phthalocyanine (1) film was formed on an indiumtin oxide (ITO) electrode with a short deposition time by electrophoretic deposition using a 2-butanone dispersion containing 1 and a small amount of iodine. A spectroscopic study showed that the crystalline form of 1 is maintained throughout the film formation processes.
Unusual Course of the p-Nitrophenyl Phosphate Esters Cleavage by 3-Hydroxyiminoalkylpyridinium Salts in Micellar Solutions
Authors: Kotoucová Hana , Mazac Jirí , Cibulka Radek , Hampl František , Liška František 
Published: September 2003

Abstract
Two types of amphiphilic quanternary 3-pyridinium ketoximes with different position of the hydrophobic alkyl chain were synthesized and tested as hydrolytic micellar catalysts. A considerable positive deviation from the expected first-order curve was observed in the absorbance vs time plot when p-nitrophenyl diphenyl phosphate and p-nitrophenyl diethyl phosphate were hydrolyzed in micellar solutions of the prepared ketoximes under pseudo-first-order reaction conditions.
The Phenylthio Group as a New Substituent on the 2-Position of Sterically Protected 1-Phosphaethenes
Authors: Ito Shigekazu , Yoshifuji Masaaki 
Published: September 2003

Abstract
The phenylthio group was introduced to the sterically protected phosphaethene-system and 1-(phenylthio)-2-(2,4,6-tri-t-butylphenyl)-2-phosphaethenyllithium was generated. It has been shown that the lithium reagent behaves like a halo-derivative, in terms of elimination, metalation, and coupling reaction, while the E/Z isomerization was observed for the phenylthio-derivative, and a 1,4-diphospha-1,3-butadiene as an oxidative coupling product was analyzed by X-ray.
Structures of New Pectenotoxin Analogs, Pectenotoxin-2 Seco Acid and 7-epi-Pectenotoxin-2 Seco Acid, Isolated from a Dinoflagellate and Greenshell Mussels
Authors: Daiguji Masayuki , Satake Masayuki , James Kevin J , Bishop Alan , MacKenzie Lincoln , Naoki Hideo , Yasumoto Takeshi 
Published: September 2003

Abstract
Two new pectenotoxin analogs, pectenotoxin-2 seco acid (PTX2SA) and 7-epi-pectenotoxin-2 seco acid (7-epi-PTX2SA), were isolated from the dinoflagellate Dinophysis acuta and greenshell mussels, Perna canaliculus. Their structures were elucidated by NMR and negative ion FAB CID MS/MS experiments.
Photoelectrochemical Fabrication of Submicrometer Platinum Pattern on Titanium Dioxide Single Crystal Surface
Authors: Ishii Hidekazu , Juodkazis Saulius , Matsuo Shigeki , Misawa Hiroaki 
Published: September 2003

Abstract
Submicrometer patterning of TiO2-rutile single crystal surface by Pt was accomplished by means of photocatalytic reduction of PtCl2−4 to Pt in an aqueous solution of H2PtCl6. The patterns of Pt were fabricated along focal point traces of 380 nm wavelength excitation laser beam on the surface of rutile substrates.
Fabrication of Nickel Dots Using Selective Electroless Deposition on Silicon Wafer
Authors: Osaka Tetsuya , Takano Nao , Komaba Shinichi 
Published: September 2003

Abstract
The selective deposition of nickel on n-Si(100) wafer in aqueous solution was investigated. It was confirmed by cross-sectional FE-TEM examination that the deposition of nickel occurred from a solution of nickel ions prepared by excluding the hypophosphite reducing agent from the conventional electroless nickel plating bath, and that this deposition reaction accompanied the formation of SiO2. This finding shows that the electrons needed to reduce the nickel ions to the metal are supplied directly from the Si wafer. By utilizing this galvanic displacement reaction, nickel metal in the form of minute dots measuring 1 μm in diameter was selectively deposited using a silicon oxide layer as the resist in combination with a two-step process, which consisted of the first step of immersing a Si wafer into a solution containing nickel ions but no reducing agent to form nuclei of nickel metal, and the second step of immersing the wafer with the nuclei into a conventional electroless nickel plating bath to cause the growth of the nuclei to the desired size.
Synthesis of Microporous Ti-Si-O Materials from a Titanium-containing Oligosilsesquioxane
Authors: Wada Kenji , Nakashita Masashi , Bundo Masaki , Ito Kenji , Kondo Teruyuki , Mitsudo Take-aki 
Published: September 2003

Abstract
Microporous Ti-Si mixed oxides with high surface areas were prepared by the calcination of a titanium-containing oligosilsesquioxane with a cubic core structure, [CpTi(R7Si7O12)] (R = c-C5H9) 1b, or silica-supported 1b.
The First Discotic Metallomesogen Derived from Phthalocyaninatooxotitanium for a Novel Photoconductive Liquid Crystal
Authors: Santiago Julio , Sugino Takushi , Shimizu Yo 
Published: September 2003

Abstract
The first phthalocyaninatooxotitanium discotic liquid crystal has been synthesized for a novel photoconductive liquid crystal. The thermal behaviour of 2,3,9,10,16,17,23,24-octakis(octadecylthio)phthalocyaninatooxotitanium(IV) was investigated by polarised light microscopy and differential scanning calorimetry (DSC) and X-ray diffraction, to reveal that it exhibits two hexagonal columnar mesophases.
Formation of a Novel Diaqua Disodium Tetrakis(1-methyluracilato)palladium Complex with a Unique Supramolecular Channel Structure
Authors: Mizutani Mamoru , Jitsukawa Koichiro , Masuda Hideki , Aoyama Yasuhiro , Einaga Hisahiko 
Published: September 2003

Abstract
A novel [Na2Pd(1-MeU−)4(H2O)2]n (1) columnar complex is prepared from the reaction of an aqueous solution containing Na2PdCl4 with four equivalent amount of 1-methyluracil (1-MeUH) in the presence of Na2CO3. X-ray structure of 1 reveals that the complex forms an infinite supramolecular channel structure in the crystal.
Asymmetric Synthesis of 1-Alkoxy-2,2,2-trifluoroethanol Derivatives
Authors: Poras Hervé , Matsutani Hiroshi , Yaruva Jayamma , Kusumoto Tetsuo , Hiyama Tamejiro 
Published: September 2003

Abstract
Reaction of trifluoroacetaldehyde with an alcohol in the persence of a catalytic amount of (R)-BINOL-Ti(O-i-Pr)2 gives optically active 1-alkoxy-2,2,2-trifluoroethanol with high ee.
Photoinduced Dimer Formation of the Inclusion Complexes of an Indoline Spiropyran with Cyclodextrins
Authors: Zhou Jinwei , Sui Qiang , Wang Yanqiao , Tang Yingwu 
Published: September 2003

Abstract
The photoinduced coloured form(B) of inclusion complex formed between a long-chain photochromic spiropyran and α-, β- or γ-cyclodextrins can assemble into dimer (B2), which can in turn stabilize the coloured form.
Surface Mass Titrations of Self-Assembled Monolayers of ω-Mercaptoalkanoic Acids on Gold
Authors: Shimazu Katsuaki , Teranishi Tadashi , Sugihara Kouki , Uosaki Kohei 
Published: September 2003

Abstract
The acid/base properties of self-assembled monolayers of ω-mercaptoalkanoic acids on Au are evaluated by measuring the mass change during the titration of the monolayers using a quartz crystal microbalance (QCM). This novel surface mass titration method by QCM determined the acid dissociation constants of the monolayers to be 6.4-5.8 in pKa, slightly dependent on the chain length of the molecule. The capability for the present method to measure acid density is also demonstrated.
Bis(tetramethylene)fluoroformamidinium Hexafluorophosphate(BTFFH): A Convenient Coupling Reagent for Solid Phase Peptide Synthesis
Authors: El-Faham Ayman 
Published: September 2003

Abstract
The onium reagent BTFFH has been shown to be a convenient reagent for the solid phase synthesis of a range of peptides incorporating sensitive amino acids.
Temperature-Composition Phase Diagram of the Organic Alloys, λ-BETS2(FeXGa1−X)Cl4, with Mixed Magnetic and Non-Magnetic Anions
Authors: Sato Akane , Ojima Emiko , Akutsu Hiroki , Kobayashi Hayao , Kobayashi Akiko , Cassoux Patrick 
Published: September 2003

Abstract
The electrical properties of a series of λ-type BETS conductors, λ-BETS2(FexGa1−x)Cl4 can be controlled continuously by varying the x-value. The system shows a metal-insulator transition for x &gt; x1 (x1 ≈ 0.5) and a superconducting transition for x &lt; x1. The T-x phase diagram indicates that the system shows the superconductor-insulator transition for x2 &lt; x &lt; x1 (x2 ≈ 0.35).
Synthesis of 3-Substituted 2,3-Dehydroprolines: Oxidative Decarboxylation of Ethyl Hydrogen Acetoamidomalonate Derivatives
Authors: Osada Satoshi , Fumoto Takeshi , Kodama Hiroaki , Kondo Michio 
Published: September 2003

Abstract
A new synthetic method for α,β-dehydroamino acid derivatives have been accomplished via lead(IV) tetraacetate oxidation of ethyl hydrogen acetoamidomalonate derivatives in the presence of copper(II) acetate. Four 3-substituted 2,3-dehydroprolines have been synthesized by this oxidative decarboxylation.
Synthesis of Boryldiazenido Complexes from Tungsten Dinitrogen Complexes
Authors: Ishino Hiroshige , Ishii Youichi , Hidai Masanobu 
Published: September 2003

Abstract
The anionic tungsten dinitrogen complex trans-[NBu4][W(NCS)(N2)(dppe)2] reacted with primary and secondary boranes to give the corresponding boryldiazenido complexes, among which trans-[W(NCS)(N=NBHCMe2CHMe2)(dppe)2] was structurally determined. A related boryldiazenido complex was also obtained by the reaction of trans-[W(N2)2(dppe)2] with 9-borabicyclo[3.3.1]nonyl trifluoromethanesulfonate. These reactions provide the first examples of boration of coordinated dinitrogen.
O,O′-Di(2-pyridyl) Thiocarbonate as an Efficient Reagent for the Preparation of Carboxylic Esters from Highly Hindered Alcohols
Authors: Saitoh Katsuyuki , Shiina Isamu , Mukaiyama Teruaki 
Published: September 2003

Abstract
Various carboxylic esters were obtained in high yields from free carboxylic acids and several alcohols including bulky ones by using O,O′-di(2-pyridyl) thiocarbonate and a catalytic amount of DMAP.