bluuebunny/crossref_metadata_2025_split huggingface dataset:
PROMOTION EFFECT OF 2,2,6,6-TETRAMETHYLPIPERIDINE-1-OXYLS ON THE RADIOLYTIC HYDROXYLATION OF THYMINE IN DEAERATED AQUEOUS SOLUTION
Authors: Kagiya Tsumotu , Kimura Ryoji , Komuro Chikara , Sakano Koichi , Nishimoto Sei-ichi 
Published: July 2006

Abstract
Remarkable promation of the hydroxylation of thimine to give thimine glycol with almost complete depression of side reactions by 2,2,6,6-tetramethylpiperidine-1-oxyl (TMPO·) derivatives was observed in the γ-radiolyses of the N2- and N2O-saturated aqueous solutions. In the O2-saturated solution, TMPO· depressed the thymine conversion close to the level under N2 while promoted the formation of thymine glycol to some extent by decreasing side reactions.
A CONVENIENT SYNTHESIS OF α-BROMOKETONES FROM OLEFINS
Authors: Kageyama Toshifumi , Tobito Yoshimichi , Katoh Atsushi , Ueno Yoshio , Okawara Makoto 
Published: July 2006

Abstract
α-Bromoketones are prepared in good yields by the reaction of olefins with sodium bromite in aqueous acetic acid at room temperature.
DIRECT CONDENSATION OF POLYHYDRIC PHENOLS WITH GLUCOSE
Authors: Onodera Jun-ichi , Takano Mltsuru , Kishi Yuji , Yokoyama Noriko , Ishida Ryosuke 
Published: July 2006

Abstract
Acid-catalyzed direct condensation reaction of polyhydric phenols with free glucose in DMSO gave O-α-d-glucopyranoside in preference to its β-anomer; however, phloroglucinol and phloroacetophenone gave C-β-d-glucopyranoside instead.
DIRECT PHOTOLYSIS AT 185 nm OF SIMPLE CYCLOBUTENES. MOLECULAR ELIMINATION OF ACETYLENE
Authors: Inoue Yoshihisa , Sakae Mitsuhiro , Hakushi Tadao 
Published: July 2006

Abstract
Direct photolyses at 185 nm of bicyclo[3.2.0]hept-6-ene and bicyclo[4.2.0]oct-7-ene in pentane afforded acetylene and the fragment cycloalkenes as the major photoproducts, whereas the Woodward-Hoffmann allowed ring-opening giving rise to 1,3-diene was a minor process.
REACTIONS OF 2,4,6-TRIARYL-DIHYDRO-1,3,5-DITHIAZINES WITH ELECTROPHILIC REAGENTS
Authors: Takikawa Yuji , Shimada Kazuaki , Makabe Takahiro , Takizawa Saburo 
Published: July 2006

Abstract
2,4,6-Triaryl-dihydro-1,3,5-dithiazines reacted with electrophilic reagents such as p-TsOH·H2O, CF3COOH, HCl, and BF3·OEt2 under reflux in CH3CN to afford α-2,4,6-triaryl-1,3,5-trithianes and β-isomers (3a-d) in good yields. Reactions with I2 gave selectively 3a-d in high yields, while with ICl or IBr gave 3a-d and p-substituted benzylideneamine·HY.
A NEW TYPE OF CYLINDRICAL MACROCYCLIC POLYETHERS, SYNTHESIS AND CATION-COMPLEXING ABILITY OF DIDECALINO- AND DECALINO-CYCLOHEXANO-18-CROWN-6
Authors: Kobiro Kazuya , Tanaka Yoshihiro , Okubo Kazuma , Hiramatsu Yasuhiro , Kakiuchi Kiyomi , Tobe Yoshito , Odaira Yoshinobu 
Published: July 2006

Abstract
Didecalino- and decalino-cyclohexano-18-crown-6, being a new type of cylindrical macrocyclic polyethers, have been synthesized and found to exhibit excellent complexing abilities toward potassium and sodium cations.
A NOVEL CYCLISATION REACTION OF ALKYLTHIODIPHENYLCYCLOPROPENIUM IONS WITH 1,3-DIKETONES TO GIVE CYCLOPENTADIENOLS
Authors: Yoshida Hiroshi , Nakajima Mikito , Ogata Tsuyoshi , Matsumoto Kiyoshi , Acheson R Morrin , Wallis John D 
Published: July 2006

Abstract
Alkylthiodiphenylcyclopropenium ions reacted with 2,4-pentanedione or ethyl acetoacetate to give cyclopentadienol derivatives by ring expansion, while triphenylcyclopropenium perchlorate yielded substituted cyclopropenes.
SOME CARBANIONIC REACTIONS OF α-CHLOROALLYL SULFONES
Authors: Jonczyk Andrzej , Radwan-Pytlewski Tadeusz 
Published: July 2006

Abstract
The chlorination of 3-methyl-2-butenyl phenyl sulfone with either hexachloroethane or 1,1-dichloro-3-methyl-2-butenyl phenyl sulfone in basic medium gives rise to 1-chloro-3-methyl-2-butenyl phenyl sulfone which in turn reacts in situ with electrophilic compounds to give a variety of products in good yields.
CASTING OF SYNTHETIC BILAYER MEMBRANES ON GLASS AND SPECTRAL VARIATION OF MEMBRANE-BOUND CYANINE AND MEROCYANINE DYES
Authors: Nakashima Naotoshi , Ando Reiko , Kunitake Toyoki 
Published: July 2006

Abstract
Cast films were prepared on glass from aqueous dispersions of double-chain ammonium amphiphiles. The bilayer characteristics were preserved and specific spectral variations were observed for film-bound cyanine and merocyanine dyes.
PHOTOCHEMICAL REACTIONS OF N,N-DIALKYL α-OXOAMIDES ADSORBED ON SILICA GEL AND ALUMINA
Authors: Aoyama Hiromu , Miyazaki Ken-ichi , Sakamoto Masami , Omote Yoshimori 
Published: July 2006

Abstract
The photochemical reactions of N,N-dialkyl α-oxoamides adsorbed on silica gel were similar to those in acidic methanol, which indicated that the acidity of silanol groups on the surfaces of silica gel played important roles. The photolysis of the amides on alumina resembled those in methanol. The results of the photoreactions also suggested the absence of strong constraint upon the molecular motions of the amides adsorbed on these adsorbents.
ENANTIOSPECIFIC SYNTHESIS OF NATURAL (+)-(S,S)-(CIS-6-METHYLTETRAHYDROPYRAN-2-YL)ACETIC ACID, A CONSTITUENT OF CIVET
Authors: Masaki Yukio , Serizawa Yuzuru , Nagata Kinnosuke , Kaji Kenji 
Published: July 2006

Abstract
(+)-(S,S)-(cis-6-Methyltetrahydropyran-2-yl)acetic acid, a constituent of the glandular secretion from the civet cat was synthesized enantiospecifically from (+)-(R,R)-diethyl tartrate via stereospecific reductive ring opening of an optically active 5,7-disubstituted 6,8-dioxabicyclo[3.2.1]octane derivative.
FACILE DEIMINATION OF SULFIMIDES AND SULFODIIMIDES WITH ELEMENTAL SULFUR CATALYZED OR UNCATALYZED BY AMINES
Authors: Sato Ryu , Saito Nobushige , Saito Minoru 
Published: July 2006

Abstract
Sulfimides and sulfodiimides were readily deiminated with elemental sulfur catalyzed or uncatalyzed by amines affording corresponding sulfides and its derivatives under mild conditions in excellent yields.
NEW ELEMANOLIDES FROM ZINNIA SPECIES: STRUCTURAL REVISION OF THE ZINNOLIDES
Authors: Ortega Alfredo , Vivar Alfonso Romo De , Toscano Rubén A , Maldonado Emma 
Published: July 2006

Abstract
A study of Zinnia peruviana afforded the new elemanolides zinaflorin IV and zinaflorin V. An X-ray crystallographic analysis of zinaflorin IV established its structure and stereochemistry as belonging to the rather unusual group of C14α, H5β elemanolides.
The generic name zinnolides is proposed for the elemanolides possessing the same relative configuration around the six member ring as that of zinaflorin IV.
THE SMSI EFFECT ON THE ACTIVITY OF CO HYDROGENATION OVER Nb2O5-SUPPORTED Rh CATALYSTS
Authors: Kunimori Kimio , Abe Hiroshi , Uchijima Toshio 
Published: July 2006

Abstract
In contrast to the case of the TiO2-supported systems, the activities of CO hydrogenation on Rh/Nb2O5 catalysts in the SMSI state were two orders of magnitude lower than in the normal state. The product selectivity appeared to be similar between the normal and SMSI states, but to depend on the metal particle size.
EXCIMER FORMATION IN THE CAVITY OF γ-CYCLODEXTRIN APPENDED BY A NAPHTHALENE MOIETY
Authors: Ueno Akihiko , Tomita Yoko , Osa Tetsuo 
Published: July 2006

Abstract
γ-Cyclodextrin appended by a naphthalene moiety forms an excimer with naphthalene in its cavity. The addition of 1-borneol causes a decrease in the excimer emission as a result of replacement of the included naphthalene by 1-borneol.
A NEW EFFICIENT SYNTHESIS AND REARRANGEMENTS OF [6]PARACYCLOPHANE
Authors: Tobe Yoshito , Ueda Ken-ichi , Kakiuchi Kiyomi , Odaira Yoshinobu 
Published: July 2006

Abstract
[6]paracyclophane (1) has been synthesized by oxidative decarboxylation of [6.2.2]propellenecarboxylic acid with lead tetraacetate. Vapor phase thermolysis of 1 affords 3-methylene-spiro[5.5]undeca-1,4-diene predominantly, while acid-catalyzed rearrangement of 1 gives the meta and ortho isomers in a ratio of 1:3.
ISOLATION AND CHARACTERIZATION OF STABLE ALKYLIDENEPHOSPHINES
Authors: Yoshifuji Masaaki , Toyota Kozo , Shibayama Katsuhiro , Inamoto Naoki 
Published: July 2006

Abstract
E and Z-P-α- (t-Butyldimethylsilyloxy)benzylidene(2,4 ,6-tri-t-butylphenyl)phosphines were isolated as stable compounds.
CATALYTIC ACTIVITY OF Co-TETRAPHENYLPORPHYRIN SUPPORTED ON TiO2 COMPARABLE TO HOPCALITES FOR THE OXIDATION OF CARBON MONOXIDE AT ROOM TEMPERATURE
Authors: Mochida Isao , Suetsugu Katsuya , Fujitsu Hiroshi , Takeshita Kenjiro 
Published: July 2006

Abstract
Molecular oxygen oxidized carbon monoxide at 17 °C over Co-TPP-TiO2 by the rate of 5.3×10−3mmol/gcat·min which was comparable to that of a commercial Hopcalite, indicating very effective activation of carbon monoxide on the partially reduced Co ion of the supported complex to attract an oxygen atom from weakly adsorbed molecular oxygen.
EXCITATION SPECTRA OF HEAT-TREATED POLY(VINYL ALCOHOL) FILM
Authors: Maruyama Kazunori , Akahoshi Hiroshi , Kobayashi Michio , Tanizaki Yoshie 
Published: July 2006

Abstract
Among species of general structure (\( \llap–CH=CH \llap–)\)n produced in the heat-treated PVA substrate, the existence of polyene systems with n=2 to 5 were successfully confirmed by means of the excitation spectra and the Lewis–Calvin’s plot.
CATALYTIC ACTIVITIES OF METAL ION EXCHANGED FORMS OF FLUORO TETRASILICIC MICA FOR THE REACTION OF BUTENES
Authors: Morikawa Yutaka , Yasuda Akio , Moro-Oka Yoshihiko , Ikawa Tsuneo 
Published: July 2006

Abstract
Metal ion exchanged forms of fluoro tetrasilicic mica (Mn+-TSM’s) showed characteristic activities of the exchanged Mn+ ions for the reaction of butenes. It is of particular interest that Sn4+- and Fe3+-TSM catalyze the dehydrogenation of butenes to form butadiene in either absence or presence of hydrogen.
SYNTHESES OF THE A RING ANALOGS OF TRIPTOLIDE AND TRIPDIOLIDE
Authors: Tokoroyama Takashi , Kondo Akihiro , Ezaki Yoichiro 
Published: July 2006

Abstract
The synthesis of an A ring analog of tripdiolide as well as revised procedures for the synthesis of a triptolide analog (isodehydroabietenolide) from dehydroabietic acid via the previously reported intermediate is described.
A NEW SYNTHETIC METHOD OF 1-AZABICYCLO[4.n.0]SYSTEMS
Authors: Shono Tatsuya , Matsumura Yoshihiro , Tsubata Kenji , Inoue Kenji , Nishida Ryoichi 
Published: July 2006

Abstract
A new method for the synthesis of bicyclic pyridinium salts from alicyclic amines and reduction of the salts to 1-azabicyclo[4.n.0]systems has been exploited.
MOESSBAUER SPECTRA OF IRON IN GLASS PREPARED BY THE GEL FORMATION REACTION OF WATER GLASS
Authors: Uetake Naohito , Kikuchi Makoto 
Published: July 2006

Abstract
The gel formed by the reaction of water glass and Fe3+ ion was dried at 150°C and the chemical state of iron was analyzed using Moessbauer spectroscopy as a function of heating temperature. Moessbauer spectra of these samples showed a well-resolved quadrupole-split doublet. The Moessbauer parameters indicated that iron entered into the silicate lattice as tetrahedrally coodinated Fe3+. These results suggested that Fe3+ ion reacted with silicate molecules in the water glass solution in the process of gel formation.
TWO-GUEST INCLUSION COMPLEX OF γ-CYCLODEXTRIN WITH CHLORPROMAZINE
Authors: Takamura Kiyoko , Inoue Satoshi , Kusu Fumiyo 
Published: July 2006

Abstract
The interaction of chlorpromazine with γ-cyclodextrin in an aqueous solution was studied by circular dichroism and 1H-NMR. γ-Cyclodextrin was found to form a 1:2 inclusion complex with chlorpromazine at a concentration higher than ca. 1×10−4mol·l−1. The two chlorpromazine molecules including in γ-cyclodextrin may have S-helicity.
SONOLUMINESCENCE FOR WATER DETERMINATION
Authors: Yamada Masaaki , Hobo Toshiyuki , Suzuki Shigetaka 
Published: July 2006

Abstract
Sonoluminescence, ultrasonically induced luminescence, is described for the determination of water in methanol. It is based on the measurement of emissions from OH*, H2O*, etc. produced when ultrasonic waves is propagated through methanol containing water. The method is unique in capable of determining water with no use of reagents.
PROPERTIES OF Na2SO4 DOPED WITH NaVO3 AND Pr2(SO4)3 AS A SOLID ELECTROLYTE
Authors: Imanaka Nobuhito , Adachi Gin-ya , Shiokawa Jiro 
Published: July 2006

Abstract
Sodium sulfate doped with both sodium vanadate and praseodymium sulfate has been investigated as solid electrolyte for SO2 detecting device. Na2SO4–NaVO3–Pr2(SO4)3(91.1:3.9:5.0) shows higher electric conductivity than pure Na2SO4. The measured EMF for an SO2 concentration cell using this electrolyte is in good accord with the calculated one. NaVO3 stabilizes a high temperature phase, Na2SO4–I.
A CONVENIENT METHOD FOR THE PREPARATION OF 4,6-O-BENZYLIDENEGLYCALS FROM METHYL 2,3-ANHYDRO-4,6-O-BENZYLIDENE-α-d-HEXOPYRANOSIDES
Authors: Tsuda Nobuo , Yokota Sumio , Kudo Takashi , Mitsunobu Oyo 
Published: July 2006

Abstract
The reaction of methyl 2,3-anhydro-4,6-O-benzylidene-α-d-allopyranoside (l) with ethylmagnesium bromode in the presence of CuI afforded 4,6-O-benzylidene-1,2-dideoxy-d-rlbo-hex-1-enopyranoside (2), Similarly, methyl 2,3-anhydro-4,6-O-benzylidene-α-d-gulopyranoside (6) gave 4,6-O-benzylidene-1,2-dideoxy-d-xylo-hex-1-enopyranoside (7).
FACILE METHOD FOR THE ACYLATION OF ALCOHOLS AND AMIDES BY THE USE OF 1,1′-DIMETHYLSTANNOCENE AND ACYL CHLORIDES
Authors: Mukaiyama Teruaki , Ichikawa Junji , Asami Masatoshi 
Published: July 2006

Abstract
Acylation of alcohols and amides was effected under mild conditions by the use of 1,1′-dimethylstannocene and acyl chlorides, giving the corresponding esters and imides in good to excellent yields.
AN ALDOL-TYPE REACTION OF ACTIVE METHYL GROUPS OF NITROGEN-CONTAINING HETEROAROMATIC COMPOUNDS
Authors: Hamana Hiroshi , Sugasawa Tsutomu 
Published: July 2006

Abstract
Active methyl groups of nitrogen-containing heteroaromatic compounds react with benzaldehydes in the presence of 9-BBN triflate and diisopropylethylamine in dichloromethane to give the corresponding aldol-type products under mild conditions.
PHOTODECARBOXYLATION OF PYRIDOXAL-α-AMINO ACID SCHIFF BASES. INTERMEDIATE SPECIES INDUCED BY FLASH EXCITATION
Authors: Kurauchi Yoshiaki , Ohga Kazuya , Morita Shigeru , Nagamura Toshihiko , Matsuo Taku 
Published: July 2006

Abstract
Pyridoxal Schiff bases of α-amino acids, phenylalanine and α-aminoisobutyric acid underwent photochemical decarboxylation in methanol to give pyridoxamine and carbonyl compounds after hydrolysis. Flash photolysis of the Schiff bases induced transient absorptions which were assigned to the decarboxylated quinonoid intermediates.
PREPARATION AND CHARACTERIZATION OF UNSYMMETRICAL BIS(BENZOCROWN ETHER)S : PREFERENTIAL COMPLEXATION WITH RUBIDIUM CATION
Authors: Ikeda Toshihiko , Abe Akito , Kikukawa Kiyoshi , Matsuda Tsutomu 
Published: July 2006

Abstract
New unsymmetrical and pseudo-symmetrical bis(benzocrown ether)s (3, 4, and 5) were synthesized. The unsymmetrical crown ether 3 showed preferential complexation with Rb+ over other alkali metal cations in solvent extraction (CH2CL2–H2O) and in the behaviour as PVC membrane electrode, as compared to 4 and 5.
ULTRASONIC ACCELERATION OF OXIDATION WITH SOLID POTASSIUM PERMANGANATE
Authors: Yamawaki Junko , Sumi Shinjiro , Ando Takashi , Hanafusa Terukiyo 
Published: July 2006

Abstract
Ultrasonic irradiation facilitates heterogeneous oxidation of secondary alcohols to ketones with solid potassium permanganate in nonpolar organic solvents.
AN ASYMMETRIC SYNTHESIS OF BICYCLIC LACTONES AND ITS APPLICATION TO THE ASYMMETRIC SYNTHESIS OF (1R,3S)-CIS-CHRYSANTHEMIC ACID
Authors: Mukaiyama Teruaki , Yamashita Hiroyuki , Asami Masatoshi 
Published: July 2006

Abstract
Optically active bicyclic lactones are synthesized from ircides, derived from (R)-(−)-2-amino-2-phenylethanol and meso-cyclic-1,2-cis-dicarboxylic acids, by successive treatment with sodium bis(2-methoxyethoxy)aluminum hydride and sodium borohydride, followed by acid hydrolysis. This reaction is successfully applied to the asymmetric synthesis of (1R,3S)-cis-chrysanthemic acid.
AN INTERPRETATION OF THE SUBSTITUENT EFFECT IN THE BLAISE REARRANGEMENT IN TERMS OF PI-ORBITALS
Authors: Abe Yukio , Suehiro Tadashi 
Published: July 2006

Abstract
The migratory aptitude of the substituent groups in the Blaise rearrangement can be explained in terms of the pi-electronic properties of the groups in the highest occupied molecular orbitals. The rates of the rearrangement reaction with relation to the substituent groups were also rationally understood based on the energy levels of the molecular orbitals.
CONVENTIONAL MEASUREMENTS OF SPECTRAL LINE PROFILES FROM HOLLOW CATHODE LAMPS AND INDUCTIVELY COUPLED ARGON PLASMA BY A WAVELENGTH-MODULATION ECHELLE MONOCHROMATOR
Authors: Hasegawa Tetsuya , Haraguchi Hiroki , Fuwa Keiichiro 
Published: July 2006

Abstract
The spectral line profiles of emission lines from hollow cathode lamps and an inductively coupled argon plasma have been measured by using a wavelength-modulation echelle monochromator. The data for the linewidths of Zn, Cd, Fe, Mg and Ca are provided along with a data correction method.
REACTIONS OF α-HETEROATOM-SUBSTITUTED ETHERS AND SULFIDES WITH SILYL ENOL ETHERS. CHEMOSELECTIVITY IN THE CLEAVAGE OF HETEROATOM–CARBON BONDS BY IODOTRIMETHYLSILANE AND TRIMETHYLSILYL TRIFLUOROMETHANESULFONATE
Authors: Hosomi Akira , Sakata Yasuyuki , Sakurai Hideki 
Published: July 2006

Abstract
Reactions of α-heteroatom-substituted ethers and related compounds (R1R2CXY; X, Y = RO, RS and Cl) with silyl enol ethers and ketene silyl acetals took place in the presence of iodotrimethylsilane (Ia) and trimethylsilyl triflate (Ib) as a catalyst and factors influencing the activation of the heteroatom by I were examined.
SYNTHESIS OF Q BASE (QUEUINE)
Authors: Kondo Tadao , Ohgi Tadaaki , Goto Toshio 
Published: July 2006

Abstract
Q base (queuine), 2-amino-5-[(3S,4R,5S)-4,5-dihydroxycyclopent-l-en-3-yl-aminomethyl]pyrrolo[2,3-d]pyrimidin-4(3H)-one, was synthesized via the Schiff base intermediate.
PREPARATION AND STRUCTURE OF Ag(I) COMPLEX WITH CYCLO(l-METHIONYL-l-METHIONYL)
Authors: Kojima Yoshitane , Yamashita Tetsushi , Ishino Yoshio , Hirashima Tsuneaki , Hirotsu Ken 
Published: July 2006

Abstract
The structure of a Ag(I) complex with cyclo(l-methionyl-l-methionyl) was examined by means of 1H NMR spectra and X-ray structure analysis. The spectra suggest that the sulfur atoms of the ligand coordinate to Ag(I) ion. In crystaline state, each Ag atom is coordinated linearly to two sulfur atoms to give a helical polymer along b-axis.
THE CRYSTAL STRUCTURE OF CALCIUM SULFITE TETRAHYDRATE
Authors: Matsuno Takashi , Takayanagi Hiroaki , Furuhata Kimio , Koishi Masumi , Ogura Haruo 
Published: July 2006

Abstract
The crystal structure of calcium sulfite tetrahydrate has been determined by the single-crystal X-ray diffraction method. The crystal of the tetrahydrate is monoclinic with space group C2/c, cell dimensions : a=19.385(11) Å, b=11.192(4) Å, c=11.449(10) Å, β=124.34(4)° and Z=12. The crystal structure has been determined by the symbolic addition method and refined by the full-matrix least-squares method to give the final R value of 0.084 for 1744 non-zero reflections.
REACTIONS OF TROPONE TOSYLHYDRAZONE SODIUM SALT WITH ACETYLENE DERIVATIVES: A NOVEL SYNTHESIS OF 1H-1,2-BENZODIAZEPINE DERIVATIVES
Authors: Saito Katsuhiro 
Published: July 2006

Abstract
The reactions of tropone tosylhydrazone sodium salt (1) with acetylenes (3a–3c) afforded 1H-1,2-benzodiazepines (8a–8c), which are considered to be formed by additions of diazotropylidene (2) with the acetylenes via norcaradiene intermediates (6).
ABSOLUTE CONFIGURATION OF POLYPEPTIDE AND DYE COMPLEXES BY AN APPLICATION OF THE EXCITON CHIRALITY METHOD
Authors: Yamamoto Hiroyuki , Nakazawa Ayako 
Published: July 2006

Abstract
Absolute configurations of the poly(Nε-alkyl-l-lysine) and alkylamino azo dye complexes have been examined by the exciton chirality method. Most complexes showed the S-chirality of the dipole transition moments of dyes. Increased hydrophobic property changed the chirality of dye from common S- to uncommon R-chirality.
DISCRIMINATION OF REDUCTION PROCESSES OF PARTIALLY CUPRIC ION-EXCHANGED Y ZEOLITES BY A TEMPERATURE-PROGRAMMED REDUCTION TECHNIQUE
Authors: Iwamoto Masakazu , Nagano Hiromi , Furukawa Hiroshi , Kagawa Shuichi 
Published: July 2006

Abstract
Four reduction processes of Cu(II) to Cu(O) in Y zeolite framework have been discernible in temperature-programmed reduction experiments with hydrogen. The reduction peaks around 473 and 593 K were proposed to correspond to the reductions of lone Cu(II) ions and Cu2+–O2−–Cu2+ species to Cu(I) ions, respectively. The generated Cu(I) ions were further reduced to Cu(O) atoms around 803 and 1153 K.
STEREOSELECTIVE SYNTHESIS OF l-SUGARS OF BIOLOGICAL IMPORTANCE STARTING FROM 4-O-BENZYL-2,3-O-ISOPROPYLIDENE-l-THREOSE AS A CHIRAL BUILDING BLOCK
Authors: Mukaiyama Teruaki , Yamada Tohru , Suzuki Keisuke 
Published: July 2006

Abstract
Biologically important l-sugars 2-deoxy-l-galactose, 3-amino-2,3-dideoxy-l-xylo-hexose, and l-diginose were successfully synthesized from the homoallyl alcohol, prepared by the stereoselective addition of allylic Sn(IV) reagent to 4-O-benzyl-2,3-O-isopropylidene-l-threose.
ORGANIC CONDUCTORS: ELECTRICAL PROPERTIES OF HMTTeF (HEXAMETHYLENETETRATELLURAFULVALENE) COMPLEXES
Authors: Saito Gunzi , Enoki Toshiaki , Inokuchi Hiroo , Kumagai Hiroaki , Tanaka Jiro 
Published: July 2006

Abstract
Several charge transfer complexes of HMTTeF (hexamethylenetetratellurafulvalene) with TCNQs, p-quinones, and other π-acceptors were prepared and electrical resistivities were measured with compaction samples. Some of them revealed very low resistivities (ρRT&lt;1Ωcm) and low activation energies(εa&lt;0.01eV). Intermolecular interaction through tellurium atoms seems to play an important role in the conduction.
SIMULTANEOUS REMOVAL OF NOx AND SOx FROM FLUE GAS BY USE OF MOLTEN HYDROGENSULFATES AS REACTION MEDIA
Authors: Shikada Tsutomu , Oba Takamasa , Fujimoto Kaoru , Tominaga Hiro-o 
Published: July 2006

Abstract
The simultaneous removal of NOx and SOx by reaction with ammonia from flue gas was found to be attained at temperature ranging from 150 to 200°C in molten salts of hydrogensulfates dissolving V2O5. The addition of transition metal sulfates such as Ti(SO4)2, Zr(SO4)2 or CuSO4 led to a marked increase in the SOx removal.
DOUBLE CYCLOADDITION REACTION OF PYRIDINIUM N-METHYLIDES TO METHYLENECYCLOPROPENES LEADING TO CAGE COMPOUNDS
Authors: Tsuge Otohiko , Kanemasa Shuji , Takenaka Shigeori 
Published: July 2006

Abstract
A new functionalization of pyridine has been demonstrated by the double cycloaddition reactions between pyridinium N-methylides and methylenecyclopropenes with unsaturated substituents at the 4-position forming a new type of cage compounds.
EPOXIDATION OF ALNUS-5-EN-3β-YL ACETATE AND CONVERSION OF DENDROPANOXIDE INTO DATURADIOL
Authors: Tori Motoo , Takai Masaki , Matsumoto Yuzo , Moriyama Yoshihiko , Tsuyuki Takahiko , Takahashi Takeyoshi , Itai Akiko , Iitaka Yoichi 
Published: July 2006

Abstract
Contrary to the reported literature, the main epoxide derived from alnus-5-en-3β-yl acetate (1) was shown to be a β-epoxide. Daturadiol (=olean-12-ene-3β,6β-diol) was prepared from dendropanoxide via 1 and its α-epoxide.
THERMAL ELECTROCYCLIC REACTION OF 4-CARBOMETHOXY-3-[CIS-2-(2,6,6-TRIMETHYL-1-CYCLOHEXENYL) VINYL] CYCLOHEX-2-EN-1-ONE
Authors: Kim Tong Hei , Isoe Sachihiko 
Published: July 2006

Abstract
Thermal cyclization of titled cis-trienone 3 leads to a mixture of tricyclic ketone 4 and an unexpected aromatic ketone 5, the latter being derived by the elimination of methyl group.
ENHANCEMENT OF THE METHANOL FORMATION FROM CO AND H2 OVER SUPPORTED RUTHENIUM CATALYSTS BY H2–H2O TREATMENT
Authors: Kobori Yoshihiro , Yamasaki Hirofumi , Naito Shuichi , Onishi Takaharu , Tamaru Kenzi 
Published: July 2006

Abstract
Supported ruthenium catalysts, which was treated by H2–H2O mixture at elevated temperatures, could produce methanol from CO and H2 with 50% selectivity, and the nature of the active sites for methanol formation on these catalysts was discussed.