bluuebunny/crossref_metadata_2025_split huggingface dataset:
DIOXETANO-CROWN ETHERS. STABILIZATION THROUGH COMPLEXATION WITH METAL IONS
Authors: Inoue Yoshihisa , Ouchi Mikio , Hayama Hidekazu , Hakushi Tadao 
Published: July 2006

Abstract
The first members of dioxetanocrown ethers 3 and 4 were prepared in methylene blue-sensitized photooxygenations of 9- and 18-membered stilbenocrown ethers 1 and 2, and the activation parameters for the thermolyses of 3 and 4 were obtained. Thermal decomposition of the bis-dioxetano-18-crown-6 4 was decelerated or accelerated in the presence of alkali metal salts depending upon the nucleophilicity of the counter anion.
NEW ATROPISOMERIC CHIRAL BISPHOSPHINE, (S)-6,6′-DIMETHYL-2,2′-BIS(DIPHENYLPHOSPHINAMINO)BIPHENYL, AND ASYMMETRIC HYDROGENATION USING THE Rh(I) COMPLEX THEREOF
Authors: Uehara Akira , Kubota Tohru , Tsuchiya Ryokichi 
Published: July 2006

Abstract
Atropisomeric chiral bisphosphine, (S)-6,6′-dimethyl-2,2′-bis(diphenylphosphinamino)biphenyl (MABP) was newly prepared, and the Rh(I) complex thereof was found to be highly effective for the asymmetric hydrogenation of 2-acetamidoacrylic acid even under 1 atm of hydrogen pressure at a temperature below 0°C.
INFRARED-INDUCED CONFORMATIONAL ISOMERIZATIONS OF ALLYLAMINE AND ALLYL ALCOHOL IN LOW-TEMPERATURE MATRICES
Authors: Nakata Munetaka , Tasumi Mitsuo , Hamada Yoshiaki , Tsuboi Masamichi 
Published: July 2006

Abstract
The infrared spectra of allylamine and allyl alcohol have been studied in low-temperature matrices. In argon matrices these molecules show rapid spectral changes upon exposure to the radiation from the light source of an infrared spectrophotometer. These spectral changes arise from the conformational isomerizations from a rotational isomer with the cis conformation about the C–C bond to those with the skew conformation. No such conformational isomerization has been observed in nitrogen matrices.
OXYGEN-BINDING AFFINITY OF LIPOSOMAL HEME UNDER SEMI PHYSIOLOGICAL CONDITIONS
Authors: Tsuchida Eishun , Nishide Hiroyuki , Yuasa Makoto , Sekine Mikiya 
Published: July 2006

Abstract
Oxygen-binding affinity (P1⁄2) of the meso-tetra-(α,α,α,α-(o-pivalamidophenyl))porphinato iron(II)-mono-(1-lauryl-2-methylimidazole) complex incorporated in liposome of phosphatidylcholine was measured at pH 7.0 and 15∼37 °C. The P1⁄2 values at 37 °C were similar to that of hemoglobin in blood (ca. 49 mmHg) and dependent on the phase state of phospholipid.
REGENERATION OF V2O5–TiO2 CATALYSTS FOR NITROGEN MONOXIDE REDUCTION POISONED BY POTASSIUM SALTS
Authors: Fujimoto Kaoru , Shikada Tsutomu 
Published: July 2006

Abstract
The activities of V2O5–TiO2 catalysts poisoned by potassium salts were recovered from 70 to 90% compared to that of the virgin catalyst by calcining in air to oxidized all vanadium species to fifth-valence, followed by treating with a solution of sodium sulfate or ammonium sulfate to remove the potassium salts of 97–98%.
DUAL REACTIVITY OF CYCLOHEPTATRIENE AND NORCARADIENE VALENCE ISOMERIZATION SYSTEM: COPE REARRANGEMENT AND INTRAMOLECULAR [2+4] CYCLOADDITION REACTION OF 1-CHLORO-1-(CYCLOHEPTATRIEN-7-YL)-3,3-DIPHENYLALLENE
Authors: Toda Takashi , Shimazaki Norihiko , Hotta Hazime , Hatakeyama Tadahide , Mukai Toshio 
Published: July 2006

Abstract
Titled compound (1) was prepared from benzophenone and 2-(cycloheptatrien-7-yl)ethynylmagnesium bromide. 1 gave the two isomers, i. e., a bicyclo[3.2.2]nonatriene derivative (2) and a formal [2+4] intramolecular cycloaddition product (3). Structural determination of the isomers and plausible mechanisms of the isomerization are discussed.
CONVENIENT ONE-POT SYNTHESIS OF ARENESULFINAMIDES: REACTIONS OF 4-NITROPHENYL SUBSTITUTED PHENYL SULFOXIDES WITH ELEMENTAL SULFUR IN LIQUID AMMONIA
Authors: Sato Ryu , Chiba Shuji , Takikawa Yuji , Takizawa Saburo , Saito Minoru 
Published: July 2006

Abstract
Various arenesulfinamides were synthesized in good yields by one-pot reactions of 4-nitrophenyl substituted phenyl sulfoxides with elemental sulfur in liquid ammonia. The arenesulfinamides were further reduced with elemental sulfur in liquid ammonia to give corresponding disulfides.
THE SILA-PUMMERER REARRANGEMENT OF 1-ALKYL-3-PHENYLSULFINYL-3-TRIMETHYLSILYLCYCLOBUTANOLS. A NEW METHOD FOR THE PREPARATION OF 3-ALKYL-2-CYCLOBUTENONES
Authors: Takeda Takeshi , Tsuchida Toshio , Ando Kazuo , Fujiwara Tooru 
Published: July 2006

Abstract
3-Alkyl-2-cyclobutenones were produced by the sila-Pummerer rearrangement of 1-acetoxy-1-alkyl-3-phenylsulfinyl-3-trimethylsilylcyclobutanes followed by hydrolysis. β-Phenylthio-α,β-and β,γ-unsaturated ketones were major products when the corresponding cyclobutanols were employed.
TRANSVERSE CONDUCTION AND METAL-INSULATOR TRANSITION IN β-(BEDT-TTF)2PF6
Authors: Kobayashi Hayao , Mori Takehiko , Kato Reizo , Kobayashi Akiko , Sasaki Yukiyoshi , Saito Gunzi , Inokuchi Hiroo 
Published: July 2006

Abstract
In the crystal of β-(BEDT-TTF)2PF6, BEDT-TTF (bis(ethylenedithiolo)tetrathiafulvalene) molecules are arranged side-by-side. The anisotropy of the electrical resistivity shows that β-(BEDT-TTF)2PF6 is the first organic conductor where the conductivity is the largest along the direction parallel to the molecular plane. The metal-insulator transition is observed at 297 K. The thermoelectric power corresponds to that due to the hole conduction in highly correlated system.
REDUCTION OF DIPHOSPHENE: FORMATION OF dl- AND meso-DIPHOSPHANES
Authors: Yoshifuji Masaaki , Shibayama Katsuhiro , Inamoto Naoki , Watanabe Tokuko 
Published: July 2006

Abstract
Bis(2,4,6-tri-tert-butylphenyl)diphosphene was reduced with aluminum hydrides to give dl- and meso-bis(2,4,6-tri-tert-butylphenyl)diphosphanes as stable compounds.
META-SUBSTITUTION EFFECT ON THE MOLECULAR STRUCTURES OF BIS (ORTHO-DIMETHOXYPHENYL)NICKEL(II) COMPLEXES
Authors: Xu Duanjun , Kai Yasushi , Miki Kunio , Kasai Nobutami , Nishiwaki Koichi , Wada Masanori 
Published: July 2006

Abstract
Molecular structures of novel trans-[NiR2L2] complexes [L=PMe3, R=C6H3(OMe)2-2,6 (1a) and C6H(OMe)2-2,6-Br2-3,5 (2a)] were determined by the X-ray crystal structure analysis, which revealed a remarkable effect of meta-bromo-substitution on the conformation of the ortho-methoxy groups, correlating well with the reactivity difference between 1a and 2a toward carbon monoxide.
BILAYER STRUCTURES OF ARTIFICIAL LIPIDS IN A WATER-SOLUBLE POLYMER BINDER
Authors: Hayashida Shoichi , Sato Hirotsugu , Sugawara Shungo 
Published: July 2006

Abstract
Artificial ammonium type lipids form bilayer structures in water-soluble polymer film similar to those in water dispersion. Bilayer structures were also formed even when the content of the hydrophobic substance is considerably high (50 mole%).
NEW SYNTHESIS OF LOLIOLIDE, DEHYDROLOLIOLIDE, AND 3-OXOACTINIDOL
Authors: Takazawa Osamu , Kogami Kunio , Hayashi Kazuo 
Published: July 2006

Abstract
Loliolide, dehydrololiolide, and 3-oxoactinidol were synthesized from megastigma-4,6,8-trien-3-one by regioselective ozonolysis and epoxidation.
NICKEL-CATALYZED ULLMANN-TYPE COUPLING OF ALKENYL HALIDES WITH ZINC POWDER
Authors: Takagi Kentaro , Hayama Naomi 
Published: July 2006

Abstract
Convenient procedure for an Ullmann-type coupling of alkenyl halides using zinc powder, nickel(II) chloride, and potassium iodide and/or thiourea is presented. One double bond in the produced diene retained the configuration of a starting material, while partial cis–trans isomerization was observed in the second one.
SELECTIVE TRIMERIZATION OF ALIPHATIC ALDEHYDES CATALYZED BY POLYNUCLEAR CARBONYLFERRATES
Authors: Ito Keiji , Kamiyama Nobuhiro , Nakanishi Saburo , Otsuji Yoshio 
Published: July 2006

Abstract
Aliphatic aldehydes undergo a catalytic trimerization to give 1,3-diol monoesters upon treatment with Fe3(CO)12 in pyridine or with Fe3(CO)12-pyridine N-oxide in benzene. Polynuclear carbonylferrates serve as catalyst for this transformation.
INTERMEDIATE IN THE REACTION OF OXOMOLYBDENUM(V) TETRAPHENYLPORPHYRIN COMPLEX WITH SUPEROXIDE ION IN APROTIC SOLVENTS
Authors: Imamura Taira , Hasegawa Koichi , Fujimoto Masatoshi 
Published: July 2006

Abstract
MoVO(tpp)Br (tpp = meso-tetraphenylporphinato) is reduced by superoxide ion, O2−, to MoIVO(tpp) in 1%(v/v) DMSO–CH2Cl2 medium at 25 °C via an intermediate. The intermediate is suggested to be a dioxygen complex and stably exists in the solution at −72 °C. The oxidation state of the central molybdenum in the intermediate complex reversibly changes with temperature between 4+ at −80 °C and 5+ at 0 °C.
SYNTHESIS OF A FIXED PARAQUINOID TAUTOMER OF 8-HYDROXY-5-DEAZAFLAVIN
Authors: Nittala S Sarma , Ikehira Hideyuki , Saito Isao , Matsuura Teruo 
Published: July 2006

Abstract
A fixed paraquinoid tautomer of 8-hydroxy-5-deazaflavin has been synthesized by five-step sequence. The existence of paraquinoid-phenolic tautomerism in ethanolic solution was demonstrated by trapping experiment.
ANIONIC σ-ADDUCTS OF 1-METHYL-3,5-DINITRO-2-PYRIDONE
Authors: Tohda Yasuo , Ariga Masahiro , Kawashima Toshihide , Matsumura Eizo 
Published: July 2006

Abstract
Alkylammonium salts of anionic σ-adducts of 1-methyl-3,5-dinitro-2-pyridone with amine- and carbon-nucleophiles were isolated and characterized. All the nucleophiles are attached to C-6 of the pyridone nucleus. The carbon-adducts are more stable than the amine-adducts, which dissociate in dilute methanol solutions. The acetone-adduct was converted into 4-nitro-1-pyrrolidinylbenzene quantitatively by heating with pyrrolidine.
SIMULTANEOUS REMOVAL OF NOX AND SOX FROM FLUE GAS. EFFECTS OF MOLTEN SALT REACTION MEDIA
Authors: Shikada Tsutomu , Oba Takamasa , Fujimoto Kaoru , Tominaga Hiro-o 
Published: July 2006

Abstract
Among the several combinations of hydrogensulfate salts tested, a molten salt of NaHSO4/LiHSO4 was shown to be most effective as a reaction medium for the simultaneous removal of NOX and SOX from flue gas catalyzed by V2O5. ESR study revealed that V2O5 dissolved in the molten salt was partly reduced, during the reaction, to V4+ suggesting a redox cycle of vanadium constituted an essential part of the catalysis.
STEREOSELECTIVE SYNTHESIS OF A CISOID C10 ISOPRENOID BUILDING BLOCK AND SOME ALL-CIS-POLYPRENOLS
Authors: Sato Kikumasa , Miyamoto Osamu , Inoue Seiichi , Furusawa Fumio , Matsuhashi Yasusuke 
Published: July 2006

Abstract
As the key compound for the construction of cisoid terpenoids, (2Z ,6Z)-8-benzyloxy-1-chloro-2,6-dimethylocta-2,6-diene was synthesized stereoselectively via the Wittig reaction starting from nerol. The ten-carbon building block was coupled with prenyl or neryl p-tolyl sulfone to afford, after reductive desulfonylation, (Z,Z)-farnesol and (Z,Z,Z) -nerylnerol, respectively.
SHAPE-SELECTIVE CRACKING OF C8-PARAFFINS ON SILANATED H-MORDENITE
Authors: Niwa Miki , Morimoto Shoji , Hattori Tadashi , Murakami Yuichi 
Published: July 2006

Abstract
In the cracking of C8-paraffins mixture, silanated H-mordenite was active for the shape-selective cracking of octane with 2,2,4-trimethylpentane remaining unreacted.
PROTECTION OF THE TRYPTOPHAN INDOLE RING IN PEPTIDE SYNTHESIS. USE OF A NEW DERIVATIVE, Nin-2,2,2-TRICHLOROETHOXYCARBONYLTRYPTOPHAN
Authors: Kiso Yoshiaki , Inai Masatoshi , Kitagawa Kouki , Akita Tadashi 
Published: July 2006

Abstract
The 2,2,2-trichloroethoxycarbonyl (Troc) group attached at the Nin function of tryptophan by acylation with Troc-Cl in the presence of a catalytic amount of tetra-n-butylammonium hydrogensulfate can be quantitatively removed either by cadmium dust in acetic acid or under basic conditions, e.g., hydrazine hydrate and NaOH, but is resistant to strong acidic conditions.
EVIDENCE FOR A SINGLE ELECTRON TRANSFER ACTIVATION IN THE HYDRIDE TRANSFER FROM AN NADH MODEL COMPOUND TO TETRACYANOETHYLENE
Authors: Fukuzumi Shunichi , Kondo Yuji , Tanaka Toshio 
Published: July 2006

Abstract
New evidence for a stepwise mechanism which requires a single electron transfer activation in the hydride transfer from an NADH model compound, 1-benzyl-1,4-dihydronicotinamide (BNAH), to tetracyanoethylene (TCNE) has been presented based on the effects of pyridine on the stoichiometry of the overall reaction, the rate constant, and the kinetic isotope effect.
HYDROGENATION OF 7-METHYLENEBICYCLO[3.3.1]NONAN-3-ONE OVER GROUP VIII METAL CATALYSTS. NOVEL REDUCTIVE CYCLIZATION
Authors: Ishiyama Jun-ichi , Senda Yasuhisa , Imaizumi Shin 
Published: July 2006

Abstract
The products of novel reductive cyclization, 1-adamantanol and 1-methyl-2-oxa-adamantane, were obtained in the hydrogenation of 7-methylenebicyclo[3.3.1]nonan-3-one over group VIII metal black catalysts in ethanol or cyclohexane. 1-Adamantanol was produced over Pd, Rh, Co and Ni catalysts, and 1-methyl-2-oxa-adamantane only over Co catalyst in cyclohexane.
ISOLATION AND ABSOLUTE CONFIGURATION OF A NEW ISOMER OF (1,2-PROPYLENEDIAMINETETRAACETATO)COBALTATE(III) ION, [Co(pdta)]−
Authors: Koine Norio , Tanigaki Teiichi 
Published: July 2006

Abstract
A new isomer of [CoIII(pdta)]−, which has a methyl group in the axial orientation, was prepared and optically resolved. The complex was characterized by spectral behaviors. The absolute configuration was determined on the basis of the circular dichroism spectrum and the equilibrium experiment.
FARFUGINE, A NEW PYRROLIZIDINE ALKALOID ISOLATED FROM FARFUGIUM JAPONICUM KITAM.
Authors: Niwa Haruki , Ishiwata Hiroyuki , Kuroda Akio , Yamada Kiyoyuki 
Published: July 2006

Abstract
A new pyrrolizidine alkaloid, farfugine (1) was isolated from Farfugium japonicum Kitam. and the structure including absolute stereochemistry was elucidated by chemical and spectroscopic evidence.
CARBON–CARBON BOND FORMATION VIA PHOSPHINE-INITIATED CLEAVAGE OF β-OXOSULFIDES
Authors: Ueno Yoshio , Yadav L D S , Okawara Makoto 
Published: July 2006

Abstract
2-(Phenacylthio) benzothiazole (1) reacted with aldehyde or ketone in the presence of tri-n-butylphosphine at 80 °C to give α,β-enone and 2-mercaptobenzothiazole in good yield. The reaction scheme for this new type of enolate ion formation via C–S bond cleavage is also described.
1-ALKENYLATION ON α-POSITION OF KETONE: PALLADIUM-CATALYZED REACTION OF TIN ENOLATES AND 1-BROMO-1-ALKENES
Authors: Kosugi Masanori , Hagiwara Isao , Migita Toshihiko 
Published: July 2006

Abstract
The reaction of tributyltin enolates, prepared from tributyltin methoxide and enol acetates in situ, with 1-bromo-1-alkenes in the presence of a catalytic amount of PdCl2(o-tolyl3P)2 was found to give the derivatives of allyl ketone in good yields.
REACTION MECHANISM OF ONE-POT SYNTHESIS OF POLYCYCLIC QUINONES —DIRECT EVIDENCE OF PHOTO-INDUCED ELECTRON TRANSFER PROCESS
Authors: Maruyama Kazuhiro , Tai Seiji , Otsuki Tetsuo 
Published: July 2006

Abstract
Photo-induced cyclocondensation of 2,3-disubstituted 1,4-naphthoquinone (substituents; halogen atom or methoxy group) with 1,1-diarylethylene provides us a powerful one-pot synthetic method of polycyclic quinones. Involvement of electron transfer process in the photochemical reaction was evidenced unambiguously by means of CIDNP technique.
OXIDATION OF 1-ACYLINDOLES WITH MOLYBDENUM PEROXO COMPLEX (MoO5·HMPA): PREPARATION OF 1-ACYL-trans- AND cis-2,3-DIHYDROXYINDOLINE DERIVATIVES
Authors: Kawasaki Tomomi , Chien Chun-Sheng , Sakamoto Masanori 
Published: July 2006

Abstract
Oxidation of 1-acylindoles with MoO5·HMPA in methanol gave a mixture of 1-acyl-trans- and cis-2,3-dihydroxyindoline derivatives in good yields, while 1-acyl-2-substituted indole was oxidized to a corresponding 2-hydroxyindoxyl.
A CONVENIENT METHOD FOR THE SYNTHESIS OF α, β-UNSATURATED CARBONYL COMPOUNDS
Authors: Mukaiyama Teruaki , Ohsumi Tadashi 
Published: July 2006

Abstract
A variety of α,β-unsaturated ketones are conveniently synthesized from enaminoketones and organolithium compounds especially when the reaction is carried out in petroleum ether; this reaction provides a facile method for the synthesis of α,β,γ-trisubstituted 2-cyclopentenones in combination with the regioselective alkylation of enaminoketones.
THE ROLE OF HYDROGEN BONDING IN THE AUTOXIDATION AND ALKYLATION OF 2-NAPHTHOLS
Authors: Jazzaa Abdulaziz Al , Clark James H , Miller Jack M 
Published: July 2006

Abstract
The powerful hydrogen bond electron donor fluoride ion assists the O-alkylation of 2-naphthols but inhibits the autoxidation of 1-alkyl-2-naphthols. These observations may be explained in terms of the nature of the OHF− hydrogen bond.
NEW SYNTHESIS OF JASMINE LACTONE AND RELATED δ-LACTONES FROM 3-SUBSTITUTED 1,2-CYCLOHEXANEDIONES BY USE OF DYE-SENSITIZED PHOTOOXYGENATION
Authors: Utaka Masanori , Kuriki Hidesuke , Sakai Takashi , Takeda Akira 
Published: July 2006

Abstract
A new synthesis of jasmine lactone and related δ-lactones is described which uses a novel dye-sensitized photooxygenation of 3-(2-alkenyl)- or 3-(2-alkynyl)-1,2-cyclohexanediones as a key step.
A FORMAL TOTAL SYNTHESIS OF VALIDAMYCIN A
Authors: Ogawa Seiichiro , Ogawa Takao , Nose Taisuke , Toyokuni Tatsushi , Iwasawa Yoshikazu , Suami Tetsuo 
Published: July 2006

Abstract
Validamycin A has been prepared by a glycosidation of the partly blocked validoxylamine A, followed by deprotection. Since a racemic form of validoxylamine A has been totally synthesized, the synthesis of validamycin A is achieved by the present study.
A NEW SYNTHETIC METHOD FOR 1-METHOXY-2-ALKANONES FROM 1,2-DIMETHOXYETHENYLLITHIUM AND ORGANOBORANES
Authors: Koshino Junji , Sugawara Takahiro , Yogo Toshinobu , Suzuki Akira 
Published: July 2006

Abstract
1-Methoxy-2-alkanones are prepared from ate-complexes formed from 1,2-dimethoxyethenyllithium and trialkylboranes by the reaction with BF3:Et2O, followed by basic hydrogen peroxide oxidation.
INTRODUCTION OF “SOLUBILIZING GROUP” TO NUCLEOTIDE SYNTHESIS: STANNYL ESTER OF NUCLEOTIDES AS USEFUL INTERMEDIATE IN UNSYMMETRICAL ALKYL NUCLEOSIDE DIPHOSPHATE SYNTHESIS
Authors: Kamimura Takashi , Sekine Mitsuo , Hata Tsujiaki 
Published: July 2006

Abstract
Tributylstannyl ester of 5′-guanylic acid and related compounds enhanced their solubility in pyridine. The stannyl phosphorothioate (5) was employed as synthetic intermediate for alkyl nucleoside diphosphate bond formation.
PRONOUNCED EFFECT OF SULFATE ION ON CATALYTIC ACTIVITY OF ZrO2–SnO2 FOR ISOMERIZATION OF CYCLOPROPANE
Authors: Wang Gong-Wei , Hattori Hideshi , Tanabe Kozo 
Published: July 2006

Abstract
The catalytic activity of ZrO2–SnO2 containing 3 wt% of sulfate ion for the isomerization of cyclopropane has been found to be pronouncedly higher than that of a pure ZrO2–SnO2 and even higher than those of ZrO2 and SnO2 which contain 3 wt% of sulfate ion.
ABSORPTION AND CIRCULAR DICHROISM SPECTRA OF BIS(ETHYLENEDIAMINE) COBALT(III) COMPLEXES WITH 2-AMINOETHANESULFENIC OR 2-AMINOETHANESELENENIC ACID
Authors: Konno Takumi , Okamoto Ken-ichi , Einaga Hisahiko , Hidaka Jinsai 
Published: July 2006

Abstract
Optically active title complexes derived from [Co(aese or seea)(en)2]2+ (aese=2-aminoethanesulfenato and seea=2-aminoethaneselenenato) were obtained and their CD spectra were discussed in relation to the absolute configuration of the coordinated chalcogen atom. The Hseea isomer derived from the Λ(R) seea one exhibited the inversion on the chiral selenium atom.
THE PHOTOLYSIS OF N,O-DIACYL-N-PHENYLHYDROXYLAMINES
Authors: Sakurai Tadamitsu , Yamada Shuichi , Inoue Hiroyasu 
Published: July 2006

Abstract
The photodecomposition of the title compounds yielded the rearrangement products derived from 1,3- and 1,5-aroyloxy migrations in addition to the fragmentation products typical of the aroyloxyl and amido free radicals. Crossover experiments indicate an intramolecular rearrangement, probably involving homolysis of the N–O bond. Sensitization and quenching studies demonstrate that the rearrangement and fragmentation proceed via the excited singlet state.
THE EFFECTS OF OXYGEN TREATMENT ON THE CO–H2 REACTION OVER VARIOUS PALLADIUM CATALYSTS SUPPORTED ON TiO2 AND ZrO2
Authors: Yoshioka Hiroshi , Naito Shuichi , Tamaru Kenzi 
Published: July 2006

Abstract
The effects of oxygen pretreatment on the activity and selectivity of CO–H2 reaction over sodium-doped and none-doped palladium catalysts supported on TiO2 and ZrO2 have been investigated. Large enhancement effect of methanol and C2 hydrocarbon product formations was observed after the oxygen treatment followed by low temperature reduction.
REGIOSELECTIVE SYNTHESIS OF 1-OLEFINS BY PALLADIUM-CATALYZED HYDROGENOLYSIS OF TERMINAL ALLYLIC COMPOUNDS WITH AMMONIUM FORMATE
Authors: Tsuji Jiro , Shimizu Isao , Minami Ichiro 
Published: July 2006

Abstract
Various terminal allylic compounds such as allylic esters, phenyl ethers, carbonates, chlorides, and vinyl epoxides react with ammonium or sodium formate to give 1-olefins with high regioselectivity by using palladium–tributylphosphine complex as a catalyst. The reaction offers a useful synthetic method for 1-olefins.
A CONVENIENT METHOD FOR CRYSTALLIZATION OF ZEOLITE ZSM-5 BY USING SEED CRYSTALS IN ACETONE/WATER MIXTURE SYSTEM
Authors: Narita Eiichi , Sato Keiichi , Okabe Taijiro 
Published: July 2006

Abstract
Zeolite ZSM-5 was easily synthesized by using ZSM-5 seed crystals as crystallization nuclei from acetone/water mixture system without any organic templates. A small amount of acetone in a reaction mixture inhibited formation of α-quartz and facilitated rapid crystallization of ZSM-5 under the mild hydrothermal conditions of 170–190 °C.
INSERTION REACTIONS OF CALCIUM ATOM INTO Si–Cl AND Ge–Cl BONDS
Authors: Mochida Kunio , Manishi Masaharu 
Published: July 2006

Abstract
Calcium atom is inserted into Si–Cl and Ge–Cl bonds of organosilylchlorides and organogermylchlorides to give the corresponding organosilylcalcium chlorides and organogermylcalcium chlorides, respectively.
THE EFFECTIVENESS OF A WEAK BASE IN THE OLEFIN SYNTHESIS FROM β-HYDROXYALKYLPHOSPHONATES
Authors: Kawashima Takayuki , Ishii Takafumi , Inamoto Naoki 
Published: July 2006

Abstract
β-Hydroxyalkylphosphonates were treated with a weak base such as potassium carbonate in N,N-dimethylformamide to give the corresponding olefins in good yields.
SH2 REACTIONS OF SELENOSULFIDES WITH CARBON RADICALS
Authors: Yoshida Masato , Cho Toshitsura , Kobayashi Michio 
Published: July 2006

Abstract
o-Nitrophenyl phenylselenyl sulfide suffered SH2 attack by carbon radicals on selenium atom to give selenide and thiyl radical; the relative rate constant of the selenosulfide with phenyl radical was compared with those of the other selenium compounds.
A NOVEL SYNTHESIS OF CYCLOHEPTA[ 2,1-b:2,3-b′]DI[1,4]BENZOXAZINES AND 14H[1,4]BENZOXAZINO[3′,2′:3,4] CYCLOHEPTA[1,2-b][1,4]BENZOXAZINES
Authors: Nozoe Tetsuo , Okai Harue , Wakabayashi Hidetsugu , Ishikawa Sumio 
Published: July 2006

Abstract
The title compounds, namely, the chiral acetals and their positional isomers were efficiently prepared by heating 6-bromocyclohepta[b][1,4]benzoxazines and the substituted o-aminophenols at 120 °C in acetic acid.
RESOLUTION, ABSOLUTE CONFIGURATION, AND PHOTORACEMIZATION OF CHIRAL TROPONOID ACETALS, CYCLOHEPTA[2,1-b:2,3-b′]DI[1,4]BENZOXAZINES
Authors: Okamoto Yoshio , Honda Shiro , Yuki Heimei , Nakamura Hikaru , Iitaka Yoichi , Nozoe Tetsuo 
Published: July 2006

Abstract
The title chiral troponoid compounds were resolved in optically pure forms by high-performance liquid chromatography on a chiral poly(triphenylmethyl methacrylate) column. The compounds showed large optical rotations. The absolute configuration of (−)-3,12-dichloro derivative was found to be R by X-ray analysis. Resolved enantiomers were racemized upon UV irradiation in solution.
HYDROGEN-TRANSFER FROM ALCOHOLS TO KETONES CATALYZED BY PHOTOGENERATED ACTIVE SPECIES FROM A STABLE HYDRIDOPHOSPHONITECOBALT(I) COMPLEX
Authors: Onishi Masayoshi , Matsuda Masahiko , Hiraki Katsuma 
Published: July 2006

Abstract
Pyrex-filtered irradiation of a thermally inert complex [CoH{PPh(OEt)2}4] generated a coordinatively unsaturated active hydrido species “CoH{PPh(OEt)2}3”, which catalyzed hydrogen-transfer from secondary alcohols to ketones. The reaction was “photoassisted” rather than “true photocatalytic”.