bluuebunny/crossref_metadata_2025_split huggingface dataset:
Spin Frustrated Double Chain {[Fe(PZDA)H2O)2]·2H2O}n (H2PZDA=2,3-Pyrazinedicarboxylic Acid)
Authors: Gao Song , Ma Bao-Qing , Yi Tao , Wang Zhe-Ming , Liao Chun-Sheng , Yan Chun-Hua , Xu Guang-Xian 
Published: September 2003

Abstract
A novel compound {[Fe(PZDA)(H2O)2]·2H2O}n has been synthesized and its structure determined by X-ray diffraction analysis, which consists of a quasi-ladder-like double chain running along a axis where Fe(II) ions are linked through the carboxylic groups acting as the edges of the ladder and pyrazine rings functioning as the rungs. Variable-temperature magnetic susceptibility study indicates the presence of spin frustration in the double chain compound.
Structure of Doubly-linked Oxidative Product of Quercetin in Lipid Peroxidation
Authors: Hirose Yuko , Fujita Tomoyuki , Nakayama Mitsuru 
Published: September 2003

Abstract
From quercetin during autoxidation of unsaturated lipid and radical reaction, a novel doubly-linked oxidative product was isolated and its structure has been characterized to be 1,3,11a-trihydroxy-9-(3,5,7-trihydroxy-4H-1-benzopyran-4-on-2-yl)-5a-(3,4-dihydroxyphenyl)-5,6,11-hexahydro-5,6,11-trioxanaphthacene-12-one by spectroscopic analyses and chemical transformation after optical resolution by chromatography.
Almost Complete Removal of Trace Amount of Halogenated Organic Compounds in Water: An Approach by Use of a Combination of Water-Soluble Thiacalixarene and Ion-Exchange Resins
Authors: Iki Nobuhiko , Fujimoto Toyohisa , Shindo Taku , Koyama Katsuyoshi , Miyano Sotaro 
Published: September 2003

Abstract
Two removal methods of small halogenated organic substances in water are proposed by formation of ternary complexes between the halides, thiacalix[4]arenetetrasulfonate (TCAS), and anion exchange resins, among which treatment of the polluted water with TCAS to form TCAS-guest complexes followed by trapping them onto the resin enables almost complete (more than 99.99%) removal of halogenated organic compounds such as CH2Cl2 and CHCl3.
Chemiluminescence Detection in Microchip Capillary Electrophoresis
Authors: Hashimoto Masahiko , Tsukagoshi Kazuhiko , Nakajima Riichiro , Kondo Kazuo , Arai Akihiko 
Published: September 2003

Abstract
Chemiluminescence detection was used in microchip capillary electrophoresis. Peroxyoxalate chemiluminescence reaction was used, and dansyl amino acids were successfully separated and detected. The present system had advantages in rapid run time (within 40 s), small (several 10 pL) and accurate sample injection method, and simplification and miniaturization of detection device.
Synthesis and Pseudorotational Barriers of Hypervalent Antimony Compounds Bearing Antimony-Group 6 Transition Metal Bonds
Authors: Toyota Koichiro , Yamamoto Yohsuke , Akiba Kin-ya 
Published: September 2003

Abstract
Hypervalent antimony compounds Rf2Sb*M(Cp)(CO)3 (Rf = o-C6H4C(CF3)2O-, M = Cr 1, Mo 2, W 3) and diastereomeric RfRfm*Sb*Mo(Cp)(CO)3 {4a and 4b, Rfm* = o-C6H4C*(CF3)(Me)O-} were synthesized. X-ray analysis of 1 and 4a and the very high isomerization barrier (31.5 kcal/mol) of 4 showed the strong electron-donating property of the (Cp)M(CO)3 fragments.
Reversible Valence Change of the Europium Ion Doped in Alkaline-earth Tetraborates
Authors: Machida Ken-ichi , Ueda Daisuke , Inoue Satoshi , Adachi Gin-ya 
Published: September 2003

Abstract
Valence state of the europium (Eu) ion doped in MB4O7 (M = Sr and Ba) was reversibly changed between the trivalent and divalent state by repeating the crystallization and vitrification cycle of the host lattices by heating even in air at 973-1273 K and such valence change was discussed on the basis of their structural connection manner for the BO3 and/or BO4 units in the networks of crystalline and vitreous forms.
Formation of Mesoscopic Patterns with Molecular-Level Flatness by Simple Casting of Chloroform Solutions of Tripeptide-Containing Amphiphiles
Authors: Ariga Katsuhiko , Kikuchi Jun-ichi , Narumi Kikou , Koyama Emiko , Yamada Norihiro 
Published: September 2003

Abstract
An AFM investigation revealed that air-dried cast films of tripeptide-containing amphiphiles had a flat texture with regular mesoscopic patterns.
Luminescent pH Sensors Based on Ru(bpy)2L2+ Where L Are Imidazo[f]1,10-phenanthrolines
Authors: Jing Bingwen , Song Aimin , Zhang Manhua , Shen Tao 
Published: September 2003

Abstract
The luminescence quantum yield of Ru(bpy)2L2+ complexes where L are imidazo[f]1,10-phenanthrolines is strongly controlled by pH due to intramolecular photoinduced electron transfer.
Synthesis and X-Ray Structures of Arsenic(V) Porphyrins with Symmetric Diaxial Ligands of Me2 and F2
Authors: Yasumoto Manabu , Satoh Wataru , Nadano Ryo , Yamamoto Yohsuke , Akiba Kin-ya 
Published: September 2003

Abstract
Arsenic porphyrins [(TPP)As(Me)2]+PF6− (2-PF6), [(TPP)As(F)2]+PF6− (3-PF6), and [(OEP)As(F)2]+PF6− (4-PF6) were prepared and the X-ray crystallographic structures revealed that the axial ligand and the porphyrin core affected to control the conformation of the porphyrins.
Preparation and Magnetic Property of Sm2Fe17Nx Fine Powders Coated by Zn and In Metals Produced via Photodecomposition of Their Organometallic Compounds
Authors: Noguchi Kenji , Nishimura Masashi , Machida Ken-ichi , Adachi Gin-ya 
Published: September 2003

Abstract
Fine powders of Sm2Fe17Nx were stabilized by microcapsulation with the In and Zn metals produced via photochemical decomposition of In(C2H5)3 and Zn(C2H5)2 under UV light irradiation and were molded to high-performance In metal-bonded magnets with the highest (BH)max value of 144 kJm−3 for Hcj = 0.66 MAm−1 among the metal-bonded Sm2Fe17Nx magnets reported up to date.
Reversal of Diastereoselectivity of the Reaction of Chiral Boron and Titanium Enolates with Nitrones via N-Acyloxyiminium Intermediates. Asymmetric Synthesis of Diastereomeric α-Substituted β-Amino Acids
Authors: Kawakami Toru , Ohtake Hiroaki , Arakawa Hiroaki , Okachi Takahiro , Imada Yasushi , Murahashi Shun-Ichi 
Published: September 2003

Abstract
Reaction of nitrones and acyl halides gives N-acyloxyiminium species, which are more reactive toward soft carbon nucleophiles than nitrones. Addition of chiral enolates to the N-acyloxyiminium species gave N-hydroxy-β-amino acid derivatives highly diastereoselectively. Reversal of diastereoselectivity was observed between the boron enolates and titanium enolates. Using this method all of the four stereoisomers of α-methyl-β-phenylalanines can be prepared as enantiomerically pure forms.
Incorporation of La3+ in an Organic Network. A Polyphenol-Derived Solid Brønsted-Base Catalyst
Authors: Saiki Toshiyuki , Aoyama Yasuhiro 
Published: September 2003

Abstract
Treatment of anthracenebisresorcinol 1 (a tetraphenol) with La(OiPr)3 in THF affords an amorphous 1:2 (14− to La3+) coordination polymer (La host). It catalyzes typical base-promoted reactions such as Michael, nitroaldol, and, less effectively, aldol reactions, where the insoluble catalyst (La host) can be readily recovered and repeatedly used.
Synthesis of N-Isopropylacrylamide from Acrylonitrile and Isopropyl Alcohol over H-ZSM-5
Authors: Chen Xin , Matsuda Hideho , Okuhara Toshio 
Published: September 2003

Abstract
A solid acid, H-ZSM-5 (Si/Al = 37), exhibited exceptionally high catalytic performance for synthesis of N-isopropylacrylamide from acrylonitrile and isopropyl alcohol in a solid-liquid reaction system at 423 K.
Difference in Catalytic Combustion of Propane and Propene on Pt/Al2O3 Catalyst
Authors: Chiba Akiya , Komoda Mitsutaka , Kosumi Takaaki , Nanba Tetsuya , Azuma Naoto , Ueno Akifumi 
Published: September 2003

Abstract
Propene combustion on Pt/Al2O3 catalysts was enhanced when partial pressure of oxygen in a feed increased, while propane combustion was found to be depressed when partial pressure of oxygen was higher than the stoichiometric pressure.
Contrasting Regiochemistry in Thermal and Photochemical Allylstannations of 1,2-Naphthoquinone
Authors: Nishigaichi Yutaka , Yoshida Naofumi , Matsuura Mikiya , Takuwa Akio 
Published: September 2003

Abstract
1,2-Naphthoquinone with γ-substituted allyltin reagents undergoes both thermal and photochemical reactions, which show the opposite regioselectivities to each other. The both reactions are supposed to proceed via the initial 1,2-addition, which occurs at the γ-position of the allyltin in the thermal reaction and at the less hindered α-position in the photoreaction, followed by the [3,3] allylic migration.
Transient Spectra and Photoreaction of 4-Methoxybenzoyloxyl Radical
Authors: Oishi Shigero , Tsubaki Hirotaka , Matsuzawa Hideyo 
Published: September 2003

Abstract
An absorption maximum and a molar extinction coefficient of a transient in the laser flash photolysis of bis(4-methoxybenzoyl) peroxide were determined as 900 nm and 750 M−1cm−1, respectively. The comparison of products for the photolysis at 266 nm with and without 1064-nm pulse gave a solid evidence of 4-methoxybenzoyloxyl radical being responsible for the absorption.
Syntheses of Novel Cyclic Polyethers and Their Complexation with Benzene Derivatives
Authors: Choi Wonmun , Hiratani Kazuhisa 
Published: September 2003

Abstract
Cyclic polyethers have been synthesized from the hydroquinone and methallyl (isobutenyl) dichloride. Of these, only the tetramer forms 1:1 complexes with benzene derivatives.
Coordination Behavior of Ruthenium(II) Complexes with Alcohol Ligand Tethered to η6-Arene Donor
Authors: Ohnishi Takafumi , Miyaki Yoshiharu , Asano Hideo , Kurosawa Hideo 
Published: September 2003

Abstract
Some ruthenium(II) complexes of an alcohol ligand tethered to η6-arene group have been prepared. The alcohol-Ru chelate bond of the complexes containing an N,N′-chelate auxiliary was maintained in methanol. The Cl− ion cleaved the alcohol-Ru bond to give the Ru-Cl bond, while bases (OH−, RNH2) abstracted proton of OH bound to Ru affording the alkoxy chelate complex.
Low-temperature Synthesis Routes of Alkali-metal Molybdenum Bronzes
Authors: Eda Kazuo , Chin Kin , Whittingham M Stanley 
Published: September 2003

Abstract
We found some novel synthesis routes for alkali-metal molybdenum bronzes. The synthesis techniques are composed of simple hydrothermal treatments of mixed-valence compounds (or mixtures) with ACl or ACl + AOH aqueous solutions (A = alkali metal). Using these routes blue bronze (K0.30MoO3) and red bronze (K0.33MoO3) were obtained from hydrogen molybdenum bronze HxMoO3 or HxMoO3 + MoO3 even at 410 K.
A Transition Metal-Hydroperoxo Complex Stabilized by Hydrogen-Bonding Interaction: The First Example of a Hydroperoxopalladium Species Characterized by X-Ray Crystallography, (κ2-TpiPr)Pd(PPh3)(OOH) [TpiPr = hydrotris(3,5-diisopropylpyrazolyl)borato]
Authors: Akita Munetaka , Miyaji Taichi , Hikichi Shiro , Moro-oka Yoshihiko 
Published: September 2003

Abstract
(κ2-TpiPr)Pd(PPh3)-OOH, the first example of a structurally characterized hydroperoxopalladium species, contains hydrogen-bonding interaction between the OOH moiety and the non-coordinated pyrazolyl ring.
Synthesis, Aggregate Structure and Electrochemical Properties of a Water-Soluble Fullerene-Bearing Ammonium Amphiphile
Authors: Murakami Hiroto , Shirakusa Masaharu , Sagara Takamasa , Nakashima Naotoshi 
Published: September 2003

Abstract
A water-soluble C60-terminating ammonium surfactant, 1, was synthesized. Electron microscopy revealed that 1 forms a fibrous aggregate in an aqueous solution. Electronic interaction between the fullerene moieties in 1 in the aqueous solution was observed. Electrochemistry for 1 aqueous solutions was found to be quite different from that of 1 in the film states.
Synthesis of 18-Demethyltaxoid via Stereoselective Allylation and Intramolecular Aldol Condensation Reactions
Authors: Iwadare Hayato , Sakoh Hiroki , Arai Hidehiro , Shiina Isamu , Mukaiyama Teruaki 
Published: September 2003

Abstract
Optically active novel 18-demethyltaxiods were successfully synthesized from 2α,10β-dibenzyloxy-11β-(t-butyldimethylsiloxy)-7β-hydroxy-1α-(p-methoxybenzyloxy)-8β,15,15-trimethyl-4-methylene-trans-bicyclo[6.4.0]dodecan-9-one (2) which corresponds to the BC ring system of Taxol by stereoselective allylation and intramolecular aldol condensation reactions.
The Crystal Structure and Magnetic Properties of CuII-NiII Heterodinuclear Complex with N,N′-Bis(2-pyridyl-ethyl)-oxamide Dianion
Authors: Liu Bin , Liao Daizheng , Jiang Zonghui , Yan Shiping , Wang Genglin , Yao Xinkan , Wang Honggen 
Published: September 2003

Abstract
A new CuII-NiII heterodinuclear complex [Cu(PEoxd)Ni(bpy)2](ClO4)2·1/2H2O has been synthesized and its structure determined by single crystal X-ray analysis. Crystal data: space group P21/c with a = 9.226(2) Å, b = 30.857(6) Å, c = 14.241(3) Å, and β = 97.36(3)°, V = 4021(2) Å3, Z = 4. Magnetic measurement indicates that the overall magnetic behavior is weakly antiferromagnetic.
Copper(I) Iodide-Promoted Allylation of Allyl- and Vinyl-silanes Assisted by Intramolecular-Coordination
Authors: Takeda Takeshi , Uruga Tetsuya , Gohroku Kazushi , Fujiwara Tooru 
Published: September 2003

Abstract
The allylation products, 1-(2-pyridylthio)alk-1,5-dienes, were produced regioselectively when 1-(2-pyridylthio)-1-(trimethylsilyl)alk-2-enes were treated with allylic chlorides in the presence of CuI and KF. The similar reaction of 1-(2-pyridylthio)-1-(trimethylsilyl)alk-1-enes with allylic chlorides produced the 1,4-dienes with complete retention of configuration.
In situ Monitoring of Poly(l-glutamine)-Bound dsDNA Selection on a Quartz-Crystal Microbalance
Authors: Furusawa Hiroyuki , Ebara Yasuhito , Okahata Yoshio 
Published: September 2003

Abstract
We applied a highly sensitive quartz-crystal microbalance as a device of dsDNA in vitro selection. When poly((l-glutamine)-immobilized QCM was employed, both the selection and evaluation processes could be monitored in situ as mass changes, and the dsDNAs having the continuous sequences of 3-5 AT base-pairs were selected after the 4th cycle from a random dsDNA pool.
Methylenation of Esters with Bis(iodozincio)methane-TiCl2-TMEDA System
Authors: Matsubara Seijiro , Ukai Katsumi , Mizuno Tsuyoshi , Utimoto Kiitiro 
Published: September 2003

Abstract
Methylenation of ester carbonyl group with bis(iodozincio)methane was examined: a use of TiCl2 and amine as mediators facilitated the reaction to give vinyl ethers in good yields.
An Efficient and Rapid Regeneration of Carbonyl Compounds from Their N,N-Dimethylhydrazones in Presence of Chlorotrimethylsilane/Sodium Iodide
Authors: Kamal Ahmed , Ramana K Venkata , Arifuddin M 
Published: September 2003

Abstract
A new efficient and extremely facile regeneration of carbonyl compounds from their N,N-dimethylhydrazones is developed in presence of chlorotrimethylsilane/sodium iodide.
Enhanced Acidity and Thermal Stability of Mesoporous Materials with Post-treatment with Phosphoric Acid
Authors: Huang Limin , Li Quanzhi 
Published: September 2003

Abstract
The thermal stability and acidity of mesoporous materials can be greatly improved through the impregnation of phosphoric acid. The P-modified Al-MCM-41 shows potential application in the cracking of long-chain alkane for producing gas olefins, especially iso-butene.
Diastereo-Differentiation during 2,4-Pentanediol Tethered Simmons-Smith Type Cyclopropanation: Reaction Species of Hydroxyl Group Directed Zinc Carbenoid Addition
Authors: Sugimura Takashi , Yoshikawa Masato , Mizuguchi Miki , Tai Akira 
Published: September 2003

Abstract
The predominant formation methods for the diastereo-differentiating species of zinc carbenoid addition to the 1-cyclohexenyl ether carrying the 2,4-pentanediol moiety were established. The species were found to include two zinc atoms and one carbenoid carbon at the hydroxyl group.
3,5-Di-tert-butylphenyl (DtBuP) Group as a Protecting Group for Kinetic Stabilization. Preparation and Characterizatioin of 2,6-Naphthoquinone Skeleton
Authors: Sugiura Ken-ichi , Saika Masataka , Sakata Yoshiteru 
Published: September 2003

Abstract
A potential use of a 3,5-di-tert-butylphenyl group for kinetically stabilization and the isolation of a stabilized 2,6-napthoquinone derivative are discussed.
Thermally Reversible Photochromic Systems. Photochromism of a Dipyrrolylperfluorocyclopentene
Authors: Uchida Kingo , Matsuoka Toyokazu , Sayo Koichi , Iwamoto Masahiro , Hayashi Shigehiko , Irie Masahiro 
Published: September 2003

Abstract
A diarylethene having 2-cyanopyrrole rings turned blue upon UV irradiation in ethyl acetate. The colored form was unstable and returned to the colorless open-ring form with a half-life time of 37 s at room temperature. The activation energy of the thermal fading was obtained to be 32.5 kJ / mol, which is less than half of that of spironaphthoxazine.
Solid-Surface Fluorescence Enhancement Behavior of a Benzofuranoquinol-Type Fluorescent Host upon Enclathration of Alicyclic Amines
Authors: Yoshida Katsuhira , Miyazaki Hirofumi , Miura Yumi , Ooyama Yousuke , Watanabe Shigeru 
Published: September 2003

Abstract
A novel benzofuranoquinol-type fluorescent host which exhibits sensitive color change and fluorescence enhancement behavior upon enclathration of alicyclic amines has been developed. The X-ray crystal structures of the guest-free and morpholine inclusion compounds have been elucidated, on the basis of which the mechanism of the optical sensing is discussed.
A New Solvothermal-Reduction Pathway to Nanocrystalline MTe (M = Zn, Pb)
Authors: Yang Jian , Yu Shu-Hong , Yang Xue-Liang , Qian Yi-Tai 
Published: September 2003

Abstract
A novel solvothermal-reduction pathway (SRP) to nanocrystalline metal tellurides (MTe, M = Zn, Pb) has been established by the reaction of metal salts with tellurium in various solvents in the presence of hydrazine hydrate(N2H4·H2O) as a reducing agent. Nanocrystallites with different morphologies such as cube particles and similar-rectangular flakes were obtained under mild conditions. The effects of solvents and temperature on the reactions were investigated.
X-Ray Photoelectron Spectroscopy of Metallo Porphyrins Having Bulky Substituents: Standard Values of Core Ionization Potentials
Authors: Sugiura Ken-ichi , Iwasaki Kentaro , Umishita Kazunori , Hino Shojun , Ogata Hironori , Miyajima Seiichi , Sakata Yoshiteru 
Published: September 2003

Abstract
X-ray photoelectron spectra of four porphyrins which hardly aggregate were measured. The C1s and N1s peak positions of these porphyrins showed almost identical values, so that these values can be used as a standard.
A Novel Route to (η3-Allyl)dicarbonylnitrosyliron Complexes via Transmetallation of η3-Allyl Palladium Complexes
Authors: Nakanishi Saburo , Yasui Masashi , Kihara Nobuhiro , Takata Toshikazu 
Published: September 2003

Abstract
Treatment of (η3-allyl)bromopalladium complexes with tricarbonylnitrosyl ferrate [Fe(CO)3(NO)]−1 afforded (η3-allyl)dicarbonylnitrosyliron complexes in good yields. The reaction provides a new route to (η3-allyl)dicarbonylnitrosyliron complexes by transmetallation of the η3-allyl ligand from palladium to iron metal.
New Stable Metallic Salt Based on a Donor Molecule Containing peri-Ditellurium Bridges, TMTTeN(SCN)0.88
Authors: Ojima Emiko , Narymbetov Bakhyt Zh , Fujiwara Hideki , Kobayashi Hayao , Kobayashi Akiko , Takimiya Kazuo , Otsubo Tetsuo , Ogura Fumio 
Published: September 2003

Abstract
A new stable organic metal, TMTTeN(SCN)0.88, where TMTTeN is 2,3,6,7-tetramethylnaphtho[1,8-cd:4,5-c′d′]bis[1,2] ditellurole, was obtained. The donors are stacked to form columns and three-dimensional network is developed through Te···Te contacts. The salt is highly conductive and keeps metallic behavior down to 4.2 K. Furthermore the salt exhibits Pauli paramagnetic behavior down to 2 K. The extended Hückel tight-binding band calculation was examined.
Photoreduction of N,N′-Bridged Porphyrins to 20π Antiaromatic Isophlorins
Authors: Setsune Jun-ichiro , Kashihara Kenji , Wada Ken-ichi , Shiozaki Hisayoshi 
Published: September 2003

Abstract
20π Antiaromatic isophlorins of N21,N22-bridged N23-alkyl-porphyrins were prepared through photoreduction with N-benzyl-1,4dihydronicotinamide or intramolecular nucleophilic alkylation at the N(24)-position. The ring structure of these N21,N22-bridged isophlorins is not highly deviated from planarity and their antiaromaticity was indicated by the great paramagnetic ring current effect.
A Potential Chemical Source of C2
Authors: Pan Weitao , Armstrong Brian M , Shevlin Philip B , Crittell Charles H , Stang Peter J 
Published: September 2003

Abstract
Thermolysis of ethynyl(phenyl)iodonium triflate, 1, in the presence of cyclooctatetraene generates naphthalene in a reaction involving free C2 or in which 1 acts as a C2 donor.
Abrasive Stripping Voltammetry at Polycrystalline Diamond Electrodes
Authors: Manivannan A , Tryk D A , Fujishima A 
Published: September 2003

Abstract
We present a new approach for the electrochemical fingerprinting of a wide range of materials using abrasive differential pulse stripping voltammetry (AbrDPSV) at boron-doped diamond electrodes. In this study, the abrasive stripping voltammetry of metallic Pb and Fe samples and of a brass alloy sample at diamond electrodes was carried out. The results obtained with brass indicate that the differential pulse voltammogram is an electrochemical fingerprint of the material and can be used to characterize possible interactions between the constituent metals as well as to reveal information on the chemical composition.
Attachment of an Organic Dye on a TiO2 Substrate in Supercritical CO2: Application to a Solar Cell
Authors: Bando Kyoko Kitamura , Mitsuzuka Yukiko , Sugino Maki , Sugihara Hideki , Sayama Kazuhiro , Arakawa Hironori 
Published: September 2003

Abstract
Attachment of eosin Y onto TiO2 electrode was carried out using super critical CO2 as a solvent. The solar cell composed of an electrode which prepared under the condition of 493 K and 25 MPa in super critical CO2 , showed an efficient fill factor as high as 95% (a Xe lamp with a 517 nm band pass filter). The dye was supposed to keep its structure under such sever conditions. Super critical CO2 made possible to carry out the attachment of dye at high temperature in a uniform phase.
New Efficient Method for the Stereoselective Synthesis of α-(Trifluoromethyl)-α, β-unsaturated Amides. Lewis Acid-Catalyzed Reaction of 3,3,3-Trifluoro-1-propynylamine with Carbonyl Compounds
Authors: Mantani Toshiya , Shiomi Keisuke , Ishihara Takashi , Yamanaka Hiroki 
Published: September 2003

Abstract
N,N-Dibutyl-(3,3,3-trifluoro-1-propynyl)amine, prepared readily by the dehydrofluorination of N,N-dibutyl-(2,2,3,3,3-pentafluoropropyl)amine with lithium diisopropylamide at room temperature, smoothly reacted with a variety of aldehydes and ketones in the presence of a catalytic amount of Lewis acid and molecular sieves 4A at ambient temperature to give the corresponding α-(trifluoromethyl)-α,β-unsaturated amides in good to excellent yields with high Z stereoselectivity.
Iodine-Catalyzed Mild and Efficient Tetrahydropyranylation / Depyranylation of Alcohols
Authors: Kumar H M Sampath , Reddy B V Subba , Reddy E Jagan , Yadav J S 
Published: September 2003

Abstract
Alcohols and phenols are tetrahydropyranylated rapidly in high yields in the presence of catalytic amount of iodine at room temperature. Depyranylation is effected readily by refluxing with iodine in methanol for few hours.
Structures and Properties of (TMEO-ST-TTP)2AsF6
Authors: Misaki Yohji , Taniguchi Masateru , Tanaka Kazuyoshi , Takimiya Kazuo , Morikami Atsushi , Otsubo Tetsuo , Mori Takehiko 
Published: September 2003

Abstract
The title material, where TMEO-ST-TTP is 2-[4,5-bis(methylthio)-1,3-diselenol-2-ylidene)-5-(4,5-ethylendioxy-1,3-dithiol-2-ylidene)-1,3,4,6-tetrathiapentalene, shows metallic conducting behavior down to 4.2 K. X-Ray structure analysis reveals it has the β-type array of donors in the BEDT-TTF salts. A tight-binding band calculation suggests the present salt has a quasi-one-dimensional Fermi surface.