bluuebunny/crossref_metadata_2025_split huggingface dataset:
Synthesis of a Novel Oxotungsten(VI) Complex Having a Chelating Bis(aryloxo) Ligand and Its Catalytic Behavior for Ring-Opening Metathesis Polymerization
Authors: Takashima Yoshinori , Nakayama Yuushou , Harada Akira 
Published: January 2003

Abstract
An oxotungsten complex coordinated with O–S–O chelating bis(aryloxo) ligand, WO{S(4-Me-6-tBuC6H2O)2}Cl2 (1), was synthesized by the reaction of WOCl4 with 2, 2′-S(4-Me-6-tBuC6H2OH)2. The structure of the complex 1 was determined by single-crystal X-ray analysis to have pseudo Cs symmetry. The catalytic behavior of 1/AlEt3 system for the ring-opening metathesis polymerization of norbornene was studied. In this catalytic system, strong dependencies of cis/trans selectivity on the catalyst concentration and on the polymerization temperature were observed. With increasing catalyst concentration and with lowering polymerization temperature, the resulting poly(norbornene)s tend to have higher cis-regularity. Oppositely, trans-rich poly(norbornene)s were produced by the polymerization under low catalyst concentration and at high polymerization temperature. We propose that these observations might come from oxotungsten–aluminum interaction.
Lipase-Catalyzed Hydrolytic Degradation of Polyurethane in Organic Solvent
Authors: Takamoto Tetsufumi , Shirasaka Hitoshi , Uyama Hiroshi , Kobayashi Shiro 
Published: January 2003

Abstract
Hydrolytic degradation of polyurethane has been achieved using lipase as catalyst. The degradation of polyurethane containing an aliphatic polyester chain as soft segment rapidly took place in the presence of Candida antarctica lipase in toluene at 60 °C to give oligomers with molecular weight less than 500.
Synthesis of CuS Millimeter-Scale Tubular Crystals
Authors: Wang Chunrui , Tang Kaibin , Yang Qing , Bin Hai , Shen Guozhen , Qian Yitai 
Published: January 2003

Abstract
CuS millimeter-scale tubular crystals were synthesized for the first time via a hydrothermal method at 185 °C. A possible growth mechanism of CuS tubular crystals was proposed.
A Molecular Pyroelectric Using a Chiral Zinc(II) Complex: High Pyroelectric Coefficient by Second-order Pyroelectricity
Authors: Sakiyama Hiroshi , Ito Tatsuya 
Published: January 2003

Abstract
A chiral zinc complex [Zn(R-salphet)2] [R-salphet− = N-(R)-1-phenylethylsalicylideneiminate(1–)] showed second-order pyroelectricity in a starch matrix. The pyroelectric coefficient was found to be 2.0 ± 1.5 mC m−2 K−1, which is much greater than that of practical pyroelectric materials. The resonance and antiresonance frequencies were found to be 50 kHz and 90 kHz, respectively, from the admittance measurement. The electromechanical coupling factor was calculated to be 0.95.
Peculiar Cycle Behavior of LiAl0.1Mn1.9O4 Material in the 3 V Region
Authors: Lee Yun Sung , Sun Yang Kook , Yoshio Masaki 
Published: January 2003

Abstract
LiAl0.1Mn1.9O4 was synthesized using LiOH, Al(NO3)3, and two different Mn3O4 sources (Tosoh and Chuodenki, Japan). Two LiAl0.1Mn1.9O4 showed similar physicochemical properties, but these presented very different cycle performance in the 3 V region. The ex-situ XRD measurements also revealed that the two materials showed different X-ray patterns after discharge to 2.2 V after 50 cycles. We found new phenomenon that the LiAl0.1Mn1.9O4 materials might show an entirely different cycle behaviors in the 3 V region even if they were synthesized using Mn source of the same crystal structure.
Synthesis of Citronellyl Acetate via a Transacetylation to Citronellol from Acetyl Coenzyme A Produced from Glucose and Acetate in Growing Yeasts
Authors: Oda Shinobu , Sugai Takeshi , Ohta Hiromichi 
Published: January 2003

Abstract
A novel coupling system, which is an acetylation system of primary alcohols with acetyl coenzyme A [acetyl-CoA] formed via the metabolism of glucose and acetate, was developed with Hansenula and Pichia. The supplementation of sodium acetate to glucose as the source of acetyl-CoA was effective to enhance the reaction rate and yield of acetylation of citronellol.
Preparation and Characterization of Regioregular Head-to-Tail π-Conjugated Poly(pyridine-2,5-diyl)s
Authors: Yamamoto Takakazu , Nakamura Takeshi , Fukumoto Hiroki , Kubota Kenji 
Published: January 2003

Abstract
Regioregular head–to-tail π-conjugated polypyridines have been prepared for the first time by organometallic polycondensation using Ni(II) complexes as the catalyst. The proportion of the HT-content in poly(6-hexylpyridine-2,5-diyl) was higher than 95%.
A Novel Strategy for Synthesis of Optically Active Polyanilines in Organic System
Authors: Su Shi-Jian , Kuramoto Noriyuki 
Published: January 2003

Abstract
Optically active polyanilines that were readily soluble in various organic solvents were prepared by oxidation of aniline with an electron acceptor, 2,3-dichloro-5,6-dicyanobenzoquinone (DDQ) in the presence of (+)- or (−)-camphorsulfonic acid (CSA). Their chiroptical properties in solutions are strongly dependent on the nature of organic solvents and structure of monomers.
Gas Phase Hydrogen Electrooxidation Using an Integrated Ultramicroelectrode
Authors: Umeda Minoru , Dokko Kaoru , Mohamedi Mohamed , Itoh Takashi , Uchida Isamu 
Published: January 2003

Abstract
We have demonstrated a hydrogen electrooxidation in the gas phase by employing a Nafion-coated integrated ultramicroelectrode, which represents the three-phase interface of a membrane assembled electrode for a polymer electrolyte fuel cell. The limiting current of gas-phase hydrogen oxidation is proven to be more than ten times larger than that in hydrogen saturated water.
Characterization of Dendritic Polymer-Modified Porous Silica Particles Using Size Exclusion Chromatography
Authors: Sakai Kiyoshi , Teng Tan Chun , Katada Aya , Harada Tomomi , Uemura Shinobu , Asami Yukio , Sakata Masayo , Kunitake Masashi , Hirayama Chuichi 
Published: January 2003

Abstract
Dendritic polymer-modified porous silica particles prepared by poly(amidoamine) (PAMAM) dendrimer synthesis reaction were characterized by elementary analysis (EA) and size exclusion chromatography (SEC). EA demonstrated the successful alternate growth of dendritic layers on the particles. The phased growth of polymer moieties by cascade reactions filled pores on silica particle, and decreased Mlims. It was found that the pore-size distribution can be controlled by the generation number and the reaction conditions.
Aluminum Chloride–Iron Promoted Coupling of Sulfonyl Chlorides with Alkyl Halides in Aqueous Media
Authors: Saikia Promod , Laskar Dhrubojyoti D , Prajapati Dipak , Sandhu Jagir S 
Published: January 2003

Abstract
A simple and inexpensive procedure for the coupling of sulfonyl chlorides and alkyl halides with aluminum chloride–iron system at ambient temperature in high yield is achieved in aqueous media.
Crystal Structures and Electrical Properties of 1:1 and 4:1 PF6 Salts of BO–HBDTTwith an α′-Type Donor Arrangement
Authors: Takahashi Kazuko , Shirahata Takashi 
Published: January 2003

Abstract
Crystal structures and electronic properties of [BO–HBDTT][PF6] and [BO–HBDTT]4[PF6] have been clarified. The donor packing patterns in these salts can be basically classified into α′-type, in which the donor stacks in the twisted overlap mode regarding the 1,3-dithiole rings. Intrastack intermolecular C–H···O contacts play an important role in the metallic nature of [BO–HBDTT]4[PF6].
Synthesis of TBA–Silicalite-2 Zeolite Nanocrystals
Authors: Dong Jun-Ping , Sun Yao-Jun , Long Ying-Cai 
Published: January 2003

Abstract
Siliceous MEL-type (silicalite-2) zeolite nanocrystals with average particle size of less than 100 nm were hydrothermally synthesized in a reactant system of TBAOH–TEOS–H2O. Investigation by using XRD, SEM, 13C and 29Si MAS NMR, FT-IR and N2 adsorption shows that the nanocrystals are aggregates of primary particles free of intergrowth with MFI (silicalite-1) zeolite, and possess ∼ 34% silanol groups in the framework as well as ∼0.9 mL·g−1 of mesopore volume. Silicalite-2 nanocrystals exhibit the particular structural characteristics: vibration at 550 cm−1 in IR spectrum splits; the signal of methyl group of TBAOH in 13C MAS CP NMR spectrum appears as singlet, which is different from that of silicalite-2 single crystals.
Stereostructure and Bioactivities of Jolkinolide D
Authors: Kigoshi Hideo , Ichino Takao , Yamada Kaoru , Ijuin Yasuharu , Makita Solange Fumi , Uemura Daisuke 
Published: January 2003

Abstract
The stereostructure and bioactivities of jolkinolide D, a diterpenoid from Euphorbia jolkini, were investigated. Jolkinolide D inhibited tumor invasion into the basement membrane and induced apoptosis in tumor cells.
Efficient Anion Binding to Cerium(IV) Bis(porphyrinate) Double Decker Utilizing Positive Homotropic Allosterism
Authors: Yamamoto Masashi , Sugasaki Atsushi , Ikeda Masato , Takeuchi Masayuki , Frimat Karine , James Tony D , Shinkai Seiji 
Published: January 2003

Abstract
New cerium(IV) bis(porphyrinate) double decker bearing two pairs of anion binding sites was synthesized. This anion receptor can bind dianionic tartarate guest according to positive homotropic allosterism. Analysis using the Hill equation afforded log K (association constant) = 9.33 [(mol dm−3)−2] and n (Hill coefficient) = 2.1 (± 0.1). This is the first example where “static” anion binding has been combined with the “dynamic” allosteric system.
Vacuum-Ultraviolet Circular Dichroism Spectrophotometer Using Synchrotron Radiation: Optical System and On-line Performance
Authors: Ojima Noriyuki , Sakai Kenichi , Matsuo Koichi , Matsui Takashi , Fukazawa Tomoyuki , Namatame Hirofumi , Taniguchi Masaki , Gekko Kunihiko 
Published: January 2003

Abstract
With the aim of measuring the circular dichroism (CD) spectra of biomaterials in aqueous solutions in the vacuum ultraviolet region between 310 and 140 nm, an optical system withstanding high vacuum was incorporated into the beam line 15 of Hiroshima Synchrotron Radiation Center (HiSOR). The performance of the constructed system was confirmed to be satisfactory in the high-vacuum on-line experiments by monitoring the CD spectra of ammonium d-camphor-10-sulfonate, d- and l-alanines in water.
Formation and Growth of Spinel-type LiMn2O4 Single Crystals by LiCl–MnCl2 Flux Evaporation
Authors: Tang Weiping , Yang Xiaojing , Kanoh Hirofumi , Ooi Kenta 
Published: January 2003

Abstract
Octahedral and rectangle-like LiMn2O4 single crystals larger than 0.1 × 0.1 × 0.1 mm3 in size were synthesized by evaporating a melt of LiCl and MnCl2 at 750 °C. The nucleation and growth of the crystals proceeds on the wall of a pure alumina crucible. Phase analysis showed that purity of phase was affected by MnCl2 partial pressure.
Synthesis of Pyridine and Isoquinoline Derivatives by the Palladium-Catalyzed Cyclization of Olefinic Ketone O-Pentafluorobenzoyloximes
Authors: Tsutsui Hironori , Narasaka Koichi 
Published: January 2003

Abstract
Pyridines and isoquinolines are synthesized from olefinic ketone O-pentafluorobenzoyloximes by treatment with a catalytic amount of Pd(PPh3)4 in the presence of (n-Bu)4NCl and triethylamine.
Direct Observation of Extraction of Cu(II) into Microcapsules Containing 8-Quinolinol by Use of Capillary and Chemiluminescence Detection
Authors: Tsukagoshi Kazuhiko , Ouji Yukiteru , Nakajima Riichiro 
Published: January 2003

Abstract
In order to observe extraction behavior of a metal ion into microcapsules containing an extraction reagent, a new method using a fused-silica capillary and chemiluminescence (CL) detection was developed. The microcapsules were prepared from hexamethylenediamine and terephthaloyl chloride by interfacial polymerization. 8-Quinolinol was used as an extraction reagent, with which Cu(II) was extracted into the microcapsules. An aliquot of Cu(II) aqueous solution in the emulsion including the microcapsules was delivered by siphoning through the capillary to CL detection cell. The extraction of Cu(II) into the microcapsules was directly observed by measuring the Cu(II) concentration with the CL intensity.
Combinatorial Molecular Imprinting for Formation of Atrazine Decomposing Polymers
Authors: Takeuchi Toshifumi , Fukuma Daigo , Matsui Jun , Mukawa Takashi 
Published: January 2003

Abstract
Synthetic polymers capable of atrazine-selective decomposition were prepared by molecular imprinting. A combinatorial approach was employed using an automated polymer preparation/evaluation system for the selection of functional monomers to construct the atrazine decomposition sites. Combined use of methacrylic acid and 2-sulfoethyl methacrylate provided atrazine-decomposing polymers in which atrazine was converted to a non-toxic compound atraton and the imprinting effects enhanced the catalytic activity.
Direct Dehydrogenation of Methanol to Formaldehyde over Novel Ag-Containing Ceramics
Authors: Dong Yi , Dai Wei-Lin , Li Jia-Liang , Deng Jing-Fa 
Published: January 2003

Abstract
A novel silver-ceramics supported catalyst showing excellent activity and selectivity in the direct dehydrogenation of methanol to formaldehyde was prepared. The selectivity was as high as 100% and the yield of formaldehyde reached 70%.
Reversible Reduction and Reoxidation of Langmuir–Blodgett Films of Octacyanophthalocyanine Dilithium Complex
Authors: Xiang Hong-Qi , Tanaka Keiji , Takahara Atsushi , Kajiyama Tisato 
Published: January 2003

Abstract
Langmuir–Blodgett film of octacyanophthalocyanine dilithium complex with strong electron-withdrawing substituents was first prepared and its redox behavior was studied by cyclic voltammetry. The LB film exhibited excellent redox reversibility in an acid electrolyte. In contrast to the case of a solution-casting film, two couples of redox peaks were clearly discerned on the voltammetric curve. Also, the linear dependence of cathodic current on scan rate was kept up to 4000 mV s−1, which was 10 times larger than that of the solution-casting film.
Correlation between Phototoxicity and Photoionization Efficiency of Phenothiazine Drugs
Authors: Kojima Masanobu , Nebashi Satomi , Nakamura Kimitoshi , Ikeda Tsunehiko , Yatsushiro Akiko , Tajima So , Tobita Seiji 
Published: January 2003

Abstract
Irradiation of sodium hyaluronate (NaHA) in the presence of phenothiazine derivatives (PTZ) caused degradation of the biopolymer. It was found that measurement of the degradation efficiency was useful for estimation of the phototoxicity of the phenothiazine drugs. The results of laser photolysis suggested that the photoionization of PTZ is a key step in initiating degradation of NaHA.
Synthetic Studies on Lycopodium Alkaloid, Magellanine: Stereoselective Construction of Functionallized Angular Tricyclic Skeletons by Intramolecular Pauson–Khand Reaction
Authors: Ishizaki Miyuki , Niimi Yuka , Hoshino Osamu 
Published: January 2003

Abstract
Angular tricyclic compounds as intermediates for total synthesis of magellanine were synthesized by stereoselective Ireland–Claisen rearrangement and intramolecular Pauson–Khand reaction of exo-methylenecyclohexylalkynes. Interestingly, remarkably different reactivity was observed in the Pauson–Khand reaction of cis- and trans-disubstituted exo-methylenecyclohexylalkynes.
Electrochemical Formation of Hydrogen Atom Adduct of 5,5-Dimethyl-1-pyrroline-N-oxide and Its Mechanism
Authors: Endo Nobuyuki , Higashi Kousuke , Tajima Kunihiko , Makino Keisuke 
Published: January 2003

Abstract
In order to make the method of spin trapping technique with 5,5-dimethyl-1-pyrroline-N-oxide (DMPO) more powerful in biological investigation, using electrochemical reaction, we have developed the method to observe an ESR spectrum composed of only a spin adduct of hydrogen atoms (DMPO-H). It has been elucidated that DMPO-H is produced through the hydrogen atom formation, not through the reduction of DMPO.
The First Lower-Rim O-Arylation of Calix[4]arenes
Authors: Zeng Xianshun , Weng Linhong , Zhang Zheng-Zhi 
Published: January 2003

Abstract
The first lower-rim full O-pyridyl and O-quinolyl ether derivatives of calix[4]arene and p-tert-butylcalix[4]arene in 1,3-alternate conformation have been synthesized using cesium carbonate as a promoter at high reaction temperature and their structures and conformations were characterized by 1H NMR spectra and X-ray crystallography.
A New Type of Cation Responsive Chromoionophore with Spectral Sensitivity in the Near-Infrared Spectral Range
Authors: Citterio Daniel , Sasaki Shin-ichi , Suzuki Koji 
Published: January 2003

Abstract
A long wavelength absorbing cation responsive chromoionophore 1 based on the strongly π-electron accepting dicyanovinylindane subunit and an electron donating N-phenylazacrown ether binding site was synthesized. The absorption spectra of this compound in CH3CN show strong changes in the near-infrared (NIR) spectral range upon binding of cations in the crown-ether moiety.
Synthesis of 1-Stibaphenalenes, the First Example of Group 15 Phenalenes, via a 1,5-Dilithium Intermediate
Authors: Yasuike Shuji , Niwa Mayumi , Yamaguchi Kentaro , Tsuchiya Takashi , Kurita Jyoji 
Published: January 2003

Abstract
The first examples of 1-stibaphenalenes 1 and 6 have been prepared by the condensation of dibromophenylstibane with 1,5-dilithium intermediate 5, generated in situ from (Z)-1-bromo-2-[1-(8-bromonaphthyl)]-1-trimethylsilylethene (4). Single crystal X-ray analysis of 1 revealed that the naphthalene and the fused stibinine ring are almost coplanar (mean deviation 0.0264 Å), and the phenyl group on the antimony is oriented perpendicular with the phenalene ring.
An Interference-Free, Amperometric Biosensor for Acetic Acid Based on a Tri-enzyme/polydimethylsiloxane-bilayer Membrane
Authors: Mizutani Fumio , Sawaguchi Takahiro , Iijima Seiichiro 
Published: January 2003

Abstract
An amperometric acetate-sensing electrode with high performance characteristics, such as high selectivity (e.g., free from the interference by ethanol, l-cysteine and hydrogen peroxide) and high stability (usable for a month), was prepared by immobilizing acetate kinase, pyruvate kinase and pyruvate oxidase on a polydimethylsiloxane-coated oxygen electrode.
Selective Hydration of a Carboxylate Group in Nitrobenzene
Authors: Osakai Toshiyuki , Nakata Sachiko , Ogawa Hajime 
Published: January 2003

Abstract
Eight different carboxylate ions were extracted with Crystal Violet into nitrobenzene. The Karl Fischer method was employed to determine the numbers of water molecules co-extracted with the carboxylate ions, i.e., their hydration numbers (nh) in nitrobenzene. The values of nh for the carboxylate ions were little dependent on their chemical structures, being 2.4 ± 0.2 as the average value.
Three-Dimensional Polymers with Metal–Oxygen and Metal–Ligand Chains: [Mn(II)(4,4′-bipy)2(Cr2O7)(H2O)2] and [Co(II)(4,4′-bipy)2(Cr2O7)]
Authors: Hayashi Yoshihito , Tagami Tomoko , Mano Hidesato , Uehara Akira 
Published: January 2003

Abstract
Reaction of aqueous solutions of [M(H2O)6](ClO4)2 (M = Mn(II) and Co(II)) and dichromate ion with 4,4′-bipy provides coordination polymers with metal–oxygen chain. The structure of [Mn(4,4′-bipy)2(Cr2O7)(H2O)2] reveals the 2D sheet structure which is constructed by hydrogen bonding between 1D chains, while [Co(4,4′-bipy)2(Cr2O7)] shows hybrid 3D polymers which have metal–bipy square grid and the dichromate pillar forms an interpenetrated cuboidal 3D structure.
Synthesis, Characterization and Properties of Poly(1-hexyl-3,4-dimethyl-2,5-pyrrolylene)
Authors: Kim In Tae , Lee Sang Woo , Kwak Tae Hyoung , Lee Jung Youl , Park Hyang Suk , Elsenbaumer Ronald L 
Published: January 2003

Abstract
This paper describes a synthetic approach for the preparation of a soluble new conjugated organic conducting polymer, poly(1-hexyl-3,4-dimethyl-2,5-pyrrolylene) obtained by oxidative coupling reaction of 1-alkyl-3,4-dimethylpyrrole derived from cis-1,4-dibromo-2,3-dimethyl-2-butene and hexylamine.
Synthesis and Spectral Properties of Lithium Naphthalocyanine: A Novel EPR Oximetry Probe
Authors: Manivannan Ayyakkannu , Yanagi Hisao 
Published: January 2003

Abstract
A novel EPR oximetry probe, lithium naphthalocyanine (LiNc) dye has been sythesized successfully and has been characterized using UV–vis spectroscopy, X-ray diffraction and ESR techniques. X-ray diffraction pattern showed the crystalline nature of the synthesized powder and resembles that of typical naphthalocyanine. EPR measurements indicated a linear dynamic EPR line width ranging from 400 mG to 26 G with increasing oxygen concentration.
Formation of p-Aminostyrene Cyclic Tetramer
Authors: Hamaya Takeo , Hayamizu Kikuko , Goto Midori , Komatsuzaki Nobuko , Masuda Takashi 
Published: January 2003

Abstract
Two isomers (1a and 1b) of p-aminostyrene cyclic tetramer (1,9,17,25-tetramethyl-2,10,18,26-tetraaza[2.2.2.2]paracyclophane, 1) were produced from the linear oligomer Pn by passing it through a silica gel column. These are stereochemical isomers (1a: RSRS, meso and 1b: RRSS, meso) and stable in solution. They include two solvent molecules in their crystalline states; 1a includes benzene and 1b includes ethanol.
The First Determination of Spin–Lattice Relaxation Times (T1) of 73Ge in the Solid State
Authors: Takeuchi Yoshito , Nishikawa Miki , Tanaka Katsumi , Takayama Toshio 
Published: January 2003

Abstract
Spin–lattice relaxation times (T1) of 73Ge nuclei of tetraphenylgermane (1) and some other organogermanes in solid state and metallic germanium were determined under the high-resolution condition. T1 values were found in the order of s in agreement with the reported value for metallic germanium determined in the static condition.
Synthesis of Orthorhombic LiMnO2 as a High Capacity Cathode for Li-Ion Battery by Emulsion Drying Method
Authors: Myung Seung-Taek , Komaba Shinichi , Kumagai Naoaki 
Published: January 2003

Abstract
Orthorhombic LiMnO2 was readily synthesized by calcination of an emulsion-dried powder precursor. The optimum synthesis condition to crystallize into zigzag layered β-NaMnO2 system was to calcine at 925 °C for 12 h in an Ar atmosphere. According to TEM observation, the prepared material from the emulsion-dried precursor consisted of highly ordered single crystalline particle. Li/LiMnO2 cell showed the capacity of about 173 mAh (g-oxide)−1 and excellent capacity retention upon cycling with help of cycle-induced spinel like phase, more than 155 mAh g−1 over 300 cycles at 25 °C.
The Self-Assembly of a 3-Component Complex: Solid-State Structure of a 1 : 1 : 1 N,N′-Di(hydroxyethoxyethoxy)pyromellitic Diimide/Dinaphtho-18-crown-6/Water Complex
Authors: Fallon Gary , Langford Steven J , Lee Marcia A-P 
Published: January 2003

Abstract
Dinaphtho-18-crown-6, which contains two π-electron rich dialkoxynaphthalene units, self-assembles with the π-electron deficient N,N′-di(hydroxyethoxyethoxy)pyromellitic diimide in solution to form 1:1 complexes that have the ability to undergo further self-organisation on crystallisation from MeCN/H2O to form linear arrays.
Oxidation of Primary Alkyl Triflates to the Corresponding Aldehydes via Alkoxy(N-tert-butylamino)(methyl)sulfonium Triflates
Authors: Kitagawa Hideo , Matsuo Jun-ichi , Iida Daisuke , Mukaiyama Teruaki 
Published: January 2003

Abstract
Various alkoxy(N-tert-butylamino)(methyl)sulfonium triflates are prepared by selective O-alkylation of N-tert-butylmethanesulfinamide (4c) with primary alkyl trifluoromethanesulfonates (triflates). Successive treatment of thus formed alkoxyaminosulfonium salts with DBU smoothly affords the corresponding aldehydes in good yields. The sequential combination of the two reactions provides a new method for oxidation of primary alkyl triflates to aldehydes, and the present study suggests the existence of alkoxysulfilimines as intermediates of the previously-reported direct oxidation of alcohols by using N-tert-butylphenylsulfinimidoyl chloride (1a) and DBU.