bluuebunny/crossref_metadata_2025_split huggingface dataset:
PHOTOCHEMICAL REACTIONS OF N-THIOAROYLUREAS AND N-THIOAROYLTHIOUREAS
Authors: Aoyama Hiromu , Sakamoto Masami , Omote Yoshimori 
Published: July 2006

Abstract
Irradiation of N-thioaroylureas and N-thioaroylthioureas gave imidazolidinones and imidazolidinethiones, respectively both via intramolecular hydrogen abstraction by the thioaroyl groups; the photoproducts were easily converted to the imidazolones and imidazolthiones on treatment with trifluoroacetic acid.
STRUCTURE OF A NEW CYANOGLUCOSIDE FROM ILEX WARBURGII LOESN.
Authors: Ueda Katsuhiro , Yasutomi Kazuko , Mori Iwao 
Published: July 2006

Abstract
A cyanoglucoside (1) has been isolated from the fruits of Ilex warburgii Loesn., and its structure has been elucidated by chemical and spectral means as (Z)-6α-(β-d-glucosyloxy)-4α, 5α-dihydroxy-2-cyclohexene-Δ1,α-acetonitrile. A related compound, Menisdaurin (3) was also isolated.
8,11-EPOXY BRIDGED CEMBRANOLIDE DITERPENE FROM THE SOFT CORAL SINULARIA FLEXIBILIS
Authors: Mori Kenichiro , Suzuki Sukeji , Iguchi Kazuo , Yamada Yasuji 
Published: July 2006

Abstract
Two new cembranolide diterpenes have been isolated from the Japanese soft coral Sinularia flexibilis. Their structures have been elucidated on the basis of spectroscopic data and chemical transformations.
THE CONGRUENT MELTING COMPOUNDS IN THE SYSTEM KCl–SnCl2
Authors: Ichiba Sumio , Iwata Yoshihiro 
Published: July 2006

Abstract
The thermal behavior of the powder mixtures of KCl and SnCl2 with various molar ratios was studied by thermal analysis. The reaction between KCl and SnCl2 to form the congruent melting compounds, KSnCl3 and KSn3Cl7, occurred at 190 °C and 212 °C, respectively. The existence of these compounds in the system KCl–SnCl2 was indicated in the equilibrium diagram constructed from the data of the DTA heating-curves in agreement with the previous work.
THE REACTION OF LITHIUM TRIALKYL(1-ALKYNYL)BORATES WITH ORTHOESTERS IN THE PRESENCE OF TITANIUM TETRACHLORIDE. A NEW SYNTHESIS OF α,β-UNSATURATED CARBONYL COMPOUNDS
Authors: Hara Shoji , Dojo Hidetaka , Suzuki Akira 
Published: July 2006

Abstract
Trialkyl(1-alkynyl)borates readily available from trialkylboranes and lithium acetylides react with orthoesters in the presence of titanium tetrachloride, followed by the oxidation with hydrogen peroxide and sodium hydroxide to give the corresponding α,β-unsaturated carbonyl compounds.
PHOTOCHEMICAL ACTIVATION OF METAL–CARBON BOND IN ZINC AND ALUMINIUM PORPHYRINS. SUBSTITUTION REACTION WITH HINDERED PHENOLS
Authors: Murayama Hideki , Inoue Shohei , Ohkatsu Yasukazu 
Published: July 2006

Abstract
Substitution reactions of N-methyltetraphenylporphinatozinc ethyl and tetraphenylporphinatoaluminium ethyl with hindered phenols such as 2,6-di-t-butyl-4-methylphenol and 2,6-di-t-butyl-4-methoxyphenol are accelerated dramatically by the irradiation with visible light, to form the metalloporphyrins with the corresponding phenoxy group bound to zinc and aluminium.
AMINE ASSISTED PHOTODECHLORINATION OF 4-CHLOROBIPHENYL. A COMMENT ON THE MECHANISM
Authors: Ohashi Mamoru , Tsujimoto Kazuo 
Published: July 2006

Abstract
The Stern–Volmer plot of the aliphatic amine assisted photodechlorination of 4-chlorobiphenyl was analyzed on the basis of the generalized Stern–Volmer expression for bimolecular photochemical reactions which can occur from both the excited singlet and triplet states of a reactant. This kinetic treatment showed that the reaction from the singlet state is more efficient than that from the triplet.
EXCIPLEX QUENCHING BY QUATERNARY AMMONIUM SALTS IN CHLOROFORM
Authors: Kitamura Noboru , Imabayashi Shin-ichiro , Tazuke Shigeo 
Published: July 2006

Abstract
Exciplex emission from pyrene-N,N-dimethylaniline and pyrene-1,4-dicyanobenzene was quenched by various quaternary ammonium salts in chloroform. The quenching rate constants depended on the structure of the quaternary ammonium salts. Electrostatic interaction between the dipolar exciplex state and the quaternary ammonium salt may be responsible for the present exciplex quenching.
LAUREACETAL-D AND -E, TWO NEW SECOCHAMIGRANE DERIVATIVES FROM THE RED ALGA LAURENCIA NIPPONICA YAMADA
Authors: Kurata Kazuya , Suzuki Teruaki , Suzuki Minoru , Kurosawa Etsuro , Furusaki Akio , Matsumoto Takeshi 
Published: July 2006

Abstract
The structures of laureacetal-D and -E, new halogenated metabolites of the red alga Laurencia nipponica Yamada, were determined by the spectral properties, chemical reactions, and X-ray crystallographic analysis.
SYNTHESIS OF A NEW PHOTO-STABLE SPIROPYRAN
Authors: Karube Isao , Yamazaki Motoo , Matsuoka Hideaki , Suzuki Shuichi 
Published: July 2006

Abstract
3′, 3′-Dimethyl-6-nitrospiro(2H-1-benzopyran-2,2′-indoline) -1′-propionic acid [I] was modified with a methoxy group at 8th position of the pyran ring. The stability of photoresponsive activity was 3.4 times higher than that of [I]. The new spiropyran is promising for the photocontrol of enzyme activity.
SENSITIZED PHOTOOXIDATION REACTIONS OF cis-α,α’-DIMETHYLSTILBENE. SENSITIZER, TEMPERATURE, AND SOLVENT EFFECTS ON PRODUCT DISTRIBUTION.
Authors: Futamura Shigeru , Ohta Hiroyuki , Kamiya Yoshio 
Published: July 2006

Abstract
Sensitized photooxidation of cis-α,α’-dimethylstilbene(1) depends on sensitizer, solvent, and temperature. At room temperature, Ru(bpy)32+- or TPP- sensitized photooxidation reaction of 1 affords a dioxetane hydroperoxide(2), while only an allylic hydroperoxide(3) is obtained when RB or MB is used as sensitizer. At low temperature, 2 comes to be formed independent of the sensitizer used.
Crystal Structure of α-(BEDT-TTF)2PF6
Authors: Kobayashi Hayao , Kato Reizo , Mori Takehiko , Kobayashi Akiko , Sasaki Yukiyoshi , Saito Gunzi , Inokuchi Hiroo 
Published: July 2006

Abstract
The crystal of α-(BEDT-TTF)2PF6 belongs to triclinic system (BEDT-TTF: bis(ethylenedithiolo)-tetrathiafulvalene). The close intermolecular contacts along the c axis suggests the strong tendency for the side-by-side arrangement of BEDT-TTF molecules. The electrical resistivity measurements show that α-(BEDT-TTF)2PF6 is a semiconductor with a small band gap of about 0.1 eV.
A CONVENIENT SYNTHETIC METHOD OF 1,3-DISUBSTITUTED ISOQUINOLINES USING SILVER TRIFLUOROMETHANESULFONATE AS A KEY REAGENT
Authors: Sato Tadashi , Tamura Kunio , Nagayoshi Kazuo 
Published: July 2006

Abstract
1,3-Disubstituted isoquinolines were prepared under mild conditions from allylbenzenes and nitriles using silver trifluoromethanesulfonate and iodine.
A NEW SYNTHETIC METHOD OF UNSYMMETRICAL α-AMINOAZINES BY THE REACTION OF ALDEHYDE ARENESULFONYL HYDRAZONES WITH α-AMINO-α-ARYLACETONITRILES
Authors: Takahashi Kazumasa , Kurita Hideki , Ogura Katsuyuki , Iida Hirotada 
Published: July 2006

Abstract
Treatment of α-amino-α-arylacetonitriles with aldehyde arenesulfonyl hydrazones affords unsymmetrical α-aminoazines in high yields, which formed by replacement of the arenesulfonyl group of the hydrazone by the acetonitrile carbanion. The formation-mechanism of azines is also discussed.
SYNTHESIS AND SOME REACTIONS OF DICHLORO(PENTAMETHYLCYCLOPENTADIENYL)RUTHENIUM(III) OLIGOMER
Authors: Oshima Noriaki , Suzuki Hiroharu , Moro-Oka Yoshihiko 
Published: July 2006

Abstract
Paramagnetic ruthenium(III) complex, [(C5Me5)RuCl2]n, is prepared by the reaction of RuCl3·H2O with C5Me5H in refluxing ethanol. Treatment of [Cp*RuCl2]n (Cp* = C5Me5) with cyclic dienes or α,ω-bis(diphenylphosphino)alkanes gives diamagnetic Ru(II) complexes, Cp*RuCl(diene) or Cp*RuCl(dipos), respectively. Cationic diene complex of ruthenium is formed by the reaction of Cp*RuCl(2,5-norbornadiene) with AgBF4.
DI(2,2,2-TRIFLUOROETHYL) PHOSPHONATE, A NEW PHOSPHORYLATING AGENT, ITS APPLICATION IN THE SYNTHESIS OF OLIGODEOXYRIBONUCLEOTIDES BY THE PHOSPHOTRIESTER APPROACH
Authors: Takaku Hiroshi , Tsuchiya Hiromichi , Imai Kazuaki , Gibbs Don E 
Published: July 2006

Abstract
A new phosphorylating agent, di(2,2,2-trifluoroethyl) phosphonate (1) was found to be a useful agent for the phosphorylation of 3′-hydroxyl group of deoxyribonucleosides. When 5′-O-protected deoxyribonucleosides are treated with 1 in the absence of coupling agents and the products subjected to oxidation, the corresponding 3′-phosphodiesters are obtained in good yields. They are key intermediates for the synthesis of oligodeoxyribonucleotides by the phosphotriester approach.
ISOMERISM OF THE HEXAMOLYBDO-PLATINATE(IV) POLYANION. CRYSTAL STRUCTURES OF K3.5[α-H4.5PtMo6O24]·3H2O AND (NH4)4[β-H4PtMo6O24]·1.5H2O
Authors: Lee Uk , Sasaki Yukiyoshi 
Published: July 2006

Abstract
The hexamolybdo-platinate(IV) anion, [PtMo6O24]8− has been found to have two geometrical isomers, one having the Anderson structure and the other having the same framework with the heptamolybdate ion reported by Lindqvist.
FORMATION OF BENZ[cd]INDAZOLE DERIVATIVES BY THE PHOTOLYSES OF DIAZIDONAPHTHALENES IN THE LOW-TEMPERATURE RIGID MATRICES
Authors: Yabe Akira , Honda Koichi , Nakanishi Hiroshi , Someno Kazuo 
Published: July 2006

Abstract
Two derivatives of benz[cd]indazole were formed in rigid matrices by low-temperature photolyses of peri-diazidonaphthalenes: 5,6-diazidoacenaphthene containing more strain energy than 1,8-diazidonaphthalene and 1,8-diazido-3,6-dinitronaphthalene having strong electron-attractive groups. These indazoles were stable to prolonged irradiation in low-temperature matrices.
INTRAMOLECULAR OXIDATIVE COUPLING OF BROMINATED 2,4′-DIHYDROXYDIARYLMETHANES. A BIOGENETIC SYNTHESIS OF THELEPIN AND ITS ANALOGS
Authors: Tsuge Otohiko , Watanabe Haruyuki , Kanemasa Shuji 
Published: July 2006

Abstract
Oxidation of brominated 2,4’-dihydroxydiarylmethanes with aqueous NaOCl under phase-transfer catalysis or NaOCl on Celite afforded new spiro-p-quinol ethers. Thelepin, which was isolated from the marine annelid Thelepus setosus, was first synthesized from thelephenol by these methods.
A FACILE SYNTHESIS OF α-C-RIBOFURANOSIDES FROM 1-O-ACETYL RIBOSE IN THE PRESENCE OF TRITYL PERCHLOLATE
Authors: Mukaiyama Teruaki , Kobayashi Shu , Shoda Shin-ichiro 
Published: July 2006

Abstract
In the presence of a catalytic amount of trityl perchlorate, 1-O-acetyl ribose stereoselectively reacts with silylated nucleophiles, such as silyl enol ether, allylsilane, and trimethylsilyl cyanide, to give the corresponding α-C-ribofuranosides in excellent yields.
EFFICIENT INVERSIONS OF SECONDARY ALCOHOLS USING CESIUM ACETATE AND 18-CROWN-6
Authors: Torisawa Yasuhiro , Okabe Hiromitsu , Ikegami Shiro 
Published: July 2006

Abstract
Reaction of alcohol mesylate with cesium acetate and 18-crown-6 in benzene is an effective method for the inversion of cyclopentyl and cyclohexyl alcohols.
A DIRECT SYNTHESIS OF CARBAMATE ESTER PROM CARBON DIOXIDE, AMINE AND ALKYL HALIDE
Authors: Yoshida Yasuhiko , Ishii Shigeru , Yamashita Tadataka 
Published: July 2006

Abstract
Carbon dioxide reacted with diethylamine and alkyl halide derivatives to give the corresponding alkyl N,N-diethylcarhamate esters in fair yields.
AN AGE DETERMINATION OF AN ANCIENT BURIAL MOUND MAN BY APPARENT RACEMIZATION REACTION OF ASPARTIC ACID IN TOOTH DENTIN
Authors: Shimoyama Akira , Harada Kaoru 
Published: July 2006

Abstract
An age of a man from an ancient burial mound dated to the seventh century was estimated to be about 50 years old, using an apparent racemization phenomenon of aspartic acid found from the tooth dentin. For this estimate, the D/L ratios of modern teeth and those by a heating experiment were also examined.
FORMATION OF HELICAL SUPER STRUCTURE FROM SINGLE-WALLED BILAYERS BY AMPHIPHILES WITH OLIGO-l-GLUTAMIC ACID-HEAD GROUP
Authors: Yamada Kimiho , Ihara Hirotaka , Ide Toshio , Fukumoto Takanori , Hirayama Chuichi 
Published: July 2006

Abstract
Double-chain alkyl amphiphiles with oligo-l-glutamic acid-head group were prepared. These compounds were dispersed in water at pH 8 to 9 to form bilayer aggregates, in which helical and hollow structures were contained. New CD bands were observed in the solution.
ON THE STRUCTURES OF PISIFERIN AND ISOPISIFERIN
Authors: Hasegawa Shinichi , Hirose Yoshiyuki , Yatagai Mitsuyoshi , Takahashi Toshio 
Published: July 2006

Abstract
The structure of pisiferin has been revised, and the double bond isomer, named isopisiferin, has been found in the seed of Chamaecyparis pisifera.
ALKOXIDE-ACCELERATED [1,3] SIGMATROPIC SHIFTS OF BICYCLO[3.2.2]NON-6-EN-2-OLS. SUBSTITUENT EFFECTS AND TANDEM [1,3]-[3,3] SIGMATROPIC REARRANGEMENTS
Authors: Uyehara Tadao , Ohmori Kazuhiro , Kabasawa Yasuhiro , Kato Tadahiro 
Published: July 2006

Abstract
Bicyclo[3.2.2]non-6-en-2-ols are shown to undergo [1,3] sigmatropic shifts under the influence of KH and 18-crown-6. A series of the 2-endo-vinyl alcohols were transformed into the ring-expanded ketones, bicyclo[5.2.2]undec-8-en-4-ones, via the tandem [1,3]-[3,3] sigmatropic rearrangements.
ADSORPTION AND ORIENTATION OF TEREPHTHALIC ACID ON ALUMINA OBSERVED BY INELASTIC ELECTRON TUNNELING SPECTROSCOPY
Authors: Kamata Satuo , Higo Morihide 
Published: July 2006

Abstract
Terephthalic acid adsorbed onto Al2O3 from alcohol solution was studied by using inelastic electron tunneling spectroscopy. A comparison with the tunneling spectrum of p-acetylbenzoic acid shows that terephthalic acid is adsorbed predominantly as a monocarboxylate ion onto the alumina surface.
SELECTIVE SYNTHESIS OF DIMETHYL ETHER FROM SYNTHESIS GAS
Authors: Fujimoto Kaoru , Asami Kenji , Shikada Tsutomu , Tominaga Hiro-o 
Published: July 2006

Abstract
Dimethyl ether was produced selectively from synthesis gas with hybrid catalysts composed of methanol synthesis catalysts and γ-alumina. It was estimated that methanol, the primary product, was immediately converted in situ to dimethyl ether and water on the γ-alumina and that the water reacted with CO to form CO2 and H2 on the methanol synthesis catalyst.
REPLACEMENT OF A CARBONYL GROUP OF CYCLIC KETONES BY A SULFUR OR A NITROGEN ATOM. A NEW METHOD FOR TRANSFORMAT OF STEROIDAL KETONES INTO THIA- OR AZASTEROIDS
Authors: Suginome Hiroshi , Yamada Shinji 
Published: July 2006

Abstract
We describe a new and versatile method for transforming cyclic ketones into cyclic sulfides or cyclic amines with the same ring size via five-step procedure. The transformation is stereospecific with regard to the chiral center adjacent to the carbonyl group of the ketones.
EFFECT OF STRUCTURE ON PHOTOALCOHOLYSIS OF AROMATIC α-HALOKETONES
Authors: Izawa Yasuji , Watoh Yasushi , Tomioka Hideo 
Published: July 2006

Abstract
Desyl halide, α-bromophenylacetate, and 2,5-dimethoxy-α-bromoacetophenones undergo smooth photomethanolysis, whereas simple α-bromoacetophenone undergoes photoreduction to give acetophenone.
SOLUTE–SOLVENT INTERACTION IN PERFLUOROHEXANE
Authors: Kano Koji , Yamamori Seiji , Yanagimoto Masaru , Hashimoto Shizunobu 
Published: July 2006

Abstract
The absorption spectra of benzene and naphthalene revealed the very weak solute–solvent interaction in perfluorohexane (PFH) while the fluorescence lifetime and the fluorescence quantum yield of naphthalene indicated the ordinary relaxation process of the Franck–Condon state in this solvent. These findings suggest that the poor polarizability of the PFH molecules causes the weak solute–solvent interaction in PFH.
STEREOSELECTIVE HYDROLYSIS OF AMINO ACID ESTERS BY MODIFIED POLY(ETHYLENIMINE)S WITH COVALENTLY-LINKED DIPEPTIDE CONTAINING A HISTIDYL RESIDUE
Authors: Kimura Yoshiharu , Nango Mamoru , Ihara Yasuji , Kuroki Nobuhiko 
Published: July 2006

Abstract
Stereoselective hydrolyses of chiral substrates were examined in poly(ethylenimine) derivatives with optically active groups. A high stereoselective effect, kL/kD=3.6, is observed. The effect of the substrate structure influenced both the rate constant and the stereoselective ratio in the hydrolyses by poly(ethylenimine) derivatives.
REGIOSELECTIVE MONOALKYLATION OF 3-METHYL-1,2-CYCLOHEXANEDIONE
Authors: Utaka Masanori , Hojo Makoto , Takeda Akira 
Published: July 2006

Abstract
Monoalkylation of 3-methyl-1,2-cyclohexanedione was achieved regioselectively to give 6-alkyl-3-methyl-1,2-cyclohexanedione as a major product without the formation of O-alkylated or polyalkylated products.
ADDITION REACTION OF TRIMETHYLSILYL AZIDE TOWARDS KETONES AND FACILE FORMATION OF TETRAZOLE DERIVATIVES
Authors: Nishiyama Kozaburo , Watanabe Akio 
Published: July 2006

Abstract
In the presence of Lewis acid such as SnCl2, the reactions of trimethylsilyl azide with ketones readily gave 1:1- or 1:2-adduct, which reacted with Lewis acid to afford tetrazole.
SYNTHESIS OF MACROCYCLIC SCHIFF BASE POLYMER LIGAND AS A HIGHLY SELECTIVE EXTRACTANT FOR COPPER(II)
Authors: Matsushita Takayuki , Kubota Noboru , Fujiwara Manabu , Shono Toshiyuki 
Published: July 2006

Abstract
A novel polymer ligand (Poly-L) in which 6,8,15,17-tetramethyl-dibenzo-5,9,14,18-tetraazacyclotetradecene (L) is present as an integral part of the polymer backbone was synthesized and its solvent extraction of copper(II) and nickel(II) was investigated in comparison with L. The complexation reactions of Poly-L with the above metal ions were found to be much faster than those of L, with a high selectivity for copper(II).
EIGHT MINOR PHYTOALEXINS FROM DISEASED PAPER MULBERRY
Authors: Takasugi Mitsuo , Niino Nobuyuki , Nagao Shigemitsu , Anetai Masaki , Masamune Tadashi , Shirata Akira , Takahashi Kokichi 
Published: July 2006

Abstract
The fungus-inoculated Broussonetia papyrifera shoot cortical tissues produced eight minor antifungal compounds: two flavans named broussinol and demethylbroussin, four 1,3-diphenylpropanes named broussonin C–F, and two chalcones. Isolation and structure elucidation of these compounds are described.
ISOMERIZATION OF ALKANES OVER A PALLADIUM SALT OF HETEROPOLYACID
Authors: Suzuki Shigeo , Kogai Katsuhiko , Ono Yoshio 
Published: July 2006

Abstract
Palladium dodecatungstophosphate (Pd3(PW12O40)2) supported on silica is an active and selective catalyst for the isomerization of pentane and hexane in the presence of hydrogen. Thus, hexane could be isomerized in a flow system under atmospheric pressure over 90% selectivity at 483 K. The reaction proceeds in a dual-dunctional mechanism; palladium metal formed by the reduction of palladium(II), and protons, act as a hydrogenation-dehydrogenation catalyst and an olefin-isomerization catalyst, respectively.
TWO SIX-MEMBERED RINGS ANNELATION TO CYCLIC KETONES THROUGH TWO SEQUENTIAL DIELS–ALDER REACTIONS
Authors: Tsuge Otohiko , Wada Eiji , Kanemasa Shuji , Sakoh Hirohiko 
Published: July 2006

Abstract
A method for the two six-membered rings annelation to cyclic ketones through two sequential Diels–Alder reactions is presented. Naphtho-annelated cycloalkanes with a variety of unsaturation are accessible by choosing the kind of dienophiles, the order of their use, and dehydrogenation.
SODIUM BROMITE: A NEW REAGENT FOR THE HOFMANN DEGRADATION OF AMIDES
Authors: Kajigaeshi Shoji , Nakagawa Takashi , Fujisaki Shizuo , Nishida Akiko , Noguchi Michihiko 
Published: July 2006

Abstract
Amines are prepared in fairly good yields by the reaction of amides with sodium bromite in the presence of catalytic amount of sodium bromide in aqueous sodium hydroxide. The scope and limitations are also presented.
QUASI-FREE ELECTRON PRODUCED IN RADIOLYSIS OF ZEOLITE
Authors: Nakazato Chiyoko , Masuda Takahiro 
Published: July 2006

Abstract
Relative reaction rates were determined for the reaction of electron produced in radiolysis of zeolite with several electron scavengers by a competition method using N2O as a reference compound. A trend in the relative reactivities was very close to that reported for liquid 2,2-dimethylpropane.
USEFUL CHIRAL PACKING MATERIALS FOR HIGH-PERFORMANCE LIQUID CHROMATOGRAPHIC RESOLUTION. CELLULOSE TRIACETATE AND TRIBENZOATE COATED ON MACROPOROUS SILICA GEL
Authors: Okamoto Yoshio , Kawashima Mitsunobu , Yamamoto Koji , Hatada Koichi 
Published: July 2006

Abstract
Cellulose triacetate and tribenzoate coated on macroporous silica gel showed excellent capabilities of chiral recognition as packing materials for high-performance liquid chromatographic resolution of various enantiomers. Chiral recognition by the cellulose triacetate was different from that by the microcrystalline cellulose triacetate.
VERSATILE RELATIVE AND ABSOLUTE STEREOCONTROL IN STANNOUS TRIFLATE MEDIATED ALDOL-TYPE REACTIONS OF 3-(2-BENZYLOXYACETYL)THIAZOLIDINE-2-THIONE
Authors: Mukaiyama Teruaki , Iwasawa Nobuharu 
Published: July 2006

Abstract
In the stannous triflate mediated aldol-type reactions of 3-(2-benzyloxyacetyl)thiazolidine-2-thione, stereochemical course of the reactions is dramatically altered by the addition of tetramethylethylenediamine as a ligand. High asymmetric induction is also achieved by the addition of chiral diamine derived from l-prolin.
A NOVEL SYNTHESIS OF AROMATIC NITRILE BY THE REACTION OF AROMATIC ALDEHYDE WITH TRIMETHYLSILYL AZIDE
Authors: Nishiyama Kozaburo , Watanabe Akio 
Published: July 2006

Abstract
In the presence of zinc chloride, the reaction of aromatic aldehydes with trimethylsilyl azide (TMSA) gave readily the corresponding nitriles in good yields under mild conditions.
WATER-INDUCED FORMATION OF AZOMETHINE YLIDE 1,3-DIPOLE. STEREOSPECIFIC AND REGIOSELECTIVE CYCLOADDITION REACTIONS
Authors: Tsuge Otohiko , Kanemasa Shuji , Hatada Akira , Matsuda Koyo 
Published: July 2006

Abstract
An N-(trimethylsilylmethyl)imine generates the azomethine ylide 1,3-dipole of nonstabilized type, when treated with water, which cycloadds to olefinic dipolarophiles in a stereospecific and regioselective manner.
AN ASYMMETRIC TRANSFORMATION OF CYCLOHEXENE OXIDE TO (S)-2-CYCLOHEXEN-1-OL BY CHIRAL LITHIUM AMIDES
Authors: Asami Masatoshi 
Published: July 2006

Abstract
(S)-2-Cyclohexen-1-ol is prepared in 92% ee from cyclohexene oxide by using chiral lithium amides, prepared from butyllithium and (S)-2-(disubstituted aminomethyl)pyrrolidines, as bases.
EFFECT OF THE Ru+++ TREATMENT ON THE ELECTROCHEMICAL HYDROGEN EVOLUTION REACTION AT GaAs ELECTRODES
Authors: Uosaki Kohei , Kita Hideaki 
Published: July 2006

Abstract
The electrochemical hydrogen evolution reaction (H.E.R.) both at n-GaAs and p-GaAs electrodes in dark was accelerated significantly by the dip treatment in RuCl3 solution but the photocurrents at p-GaAs decreased by the treatment. These results and impedance analyses show that the Ru+++ treatment introduces not only catalytic surface for H.E.R. but also surface states which act as recombination centers.
A SHORT SYNTHESIS OF cis-2-FORMYL-5-HYDROXY-2-CYCLOPENTENE-1-ACETIC ACID γ-LACTONE. THE KEY INTERMEDIATE OF PROSTAGLANDIN SYNTHESIS
Authors: Sato Masayuki , Sekiguchi Keiko , Kaneko Chikara 
Published: July 2006

Abstract
A practically one-pot synthesis of the title compound from 2,2-dimethyl-1,3-dioxin-4-one and cis-2-cyclopentene-1,4-diol by an application of de Mayo method is described.
ASYMMETRIC REDUCTION OF BENZIL TO BENZOIN CATALYZED BY THE ENZYME SYSTEM OF A MICROORGANISM
Authors: Konishi Jin , Ohta Hiromichi , Tsuchihashi Gen-ichi 
Published: July 2006

Abstract
Benzil was reduced by incubation with a bacterium in a nutrient medium to afford (R)-benzoin. Substituted benzils were also hydrogenated to the corresponding benzoins in a similar manner.
DIRECT LIQUEFACTION OF WOOD BY ALKALI AND ALKALINE EARTH SALT IN AN AQUEOUS PHASE
Authors: Ogi Tomoko , Yokoyama Shin-ya , Koguchi Katsuya 
Published: July 2006

Abstract
Catalytic effects of various salts of alkali and alkaline earth metals were tested in the direct liquefaction of wood in an aqueous phase without a reducing agent like H2 or CO. A marked effect of sodium, potassium and calcium salts was observed for the production of heavy oils in more than 50% yields.
STRUCTURE OF A NEW BROMODITERPENE, PREPINNATERPENE, FROM THE MARINE RED ALGA LAURENCIA PINNATA YAMADA
Authors: Fukuzawa Akio , Takaya Yoshiaki , Matsue Hideki , Masamune Tadashi 
Published: July 2006

Abstract
The structure of a new bromoditerpene named prepinnaterpene, isolated from the title alga, is described.