bluuebunny/crossref_metadata_2025_split huggingface dataset:
SYNTHESIS OF SILYL ENOL ETHER. REACTION OF SILYLENE WITH CARBONYL COMPOUNDS
Authors: Ando Wataru , Ikeno Masayuki 
Published: July 2006

Abstract
Under neutral and mild conditions, silyl enol ethers are synthesized in good yields by the reactions of ketones or aldehydes with dimethylsilylene, which generated by the photolysis of dodecamethylcyclohexasilane.
SYTHESIS OF OPTICALLY ACTIVE COMMON PRECURSOR OF SEX PHEROMONE OF PINE SAWFLIES: AN APPLICATION OF ENANTIOFACE-DIFFERENTIATING HYDROGENATION WITH MODIFIED NICKEL
Authors: Tai Akira , Imaida Motomasa , Oda Toshihiko , Watanabe Hiroshi 
Published: July 2006

Abstract
Synthesis of optically active 3,7-dimethylpentadecan-2-ol (1), a common precursor of sex pheromone of pine sawflies, was carried out. (+)-(2S,3S)-, (−)-(2R,3R)-, and (±)-(2R*, 3S*)-1 were prepared from (+)-(2R, 3S)-, (−)-(2S, 3R)-, and (±)-(2R*, 3S*)-3-hydroxy-2-methylbutyric acid, respectively under the conservation of their stereochemistry. Enantioface-differentiating (asymmetric) hydrogenation of methyl 2-methyl-3-oxobutyrate over tartaric acid-modified nickel catalyst gave methyl 3-hydroxy-2-methylbutyrate in high diastereomer and enantiomer excess, enabling us to obtain the optically active starting materials in high yields.
INSERTION OF CARBON DIOXIDE INTO THE Ni–R BOND OF NiR2(bpy) (R = CH3, C2H5) AND ELIMINATION OF DIETHYL KETONE FROM THE INTERMEDIATE PRODUCT Ni (C2H5) (OCOC2H5) (bpy)
Authors: Yamamoto Takakazu , Yamamoto Akio 
Published: July 2006

Abstract
Ni(C2H5)2(bpy) (bpy = 2,2′-bipyridine) reacts with CO2 in benzene at 40–50 °C to afford diethyl ketone and nickel propionate. Diethyl ketone seems to be formed through an intramolecular rearrangement in an intermediate product Ni(C2H5) (OCOC2H5) (bpy). A similar reaction of Ni(CH3)2(bpy) gives nickel acetate.
SENDANAL, A NEW LIMONOID FROM MELIA AZEDARACH LINN. VAR. JAPONICA MAKINO
Authors: Ochi Masamitsu , Kotsuki Hiyoshizo , Tokoroyama Takashi 
Published: July 2006

Abstract
A new limonoid of biogenetic interest, sendanal, has been isolated from the fruit of M. azedarach Linn. var. japonica Makino and its structure also been deduced from its spectral data coupled with chemical evidence.
A NEW METHOD FOR GLYCOSYLATION WITH CARBODIIMIDES; NUCLEOPHILIC SUBSTITUTION OF GLYCOSYLISOUREAS
Authors: Tsutsumi Hideo , Awai Yoshio , Ishido Yoshiharu 
Published: July 2006

Abstract
A glycosyl isourea, prepared from a sugar derivative with free 1-hydroxyl group and a carbodiimide in the presence of cuprous chloride, was successfully subjected to the reaction with a series of protic nucleophiles to give the corresponding glycosyl compounds, i.e., 1-O-acylglycoses, phenyl glycosides, alkyl glycosides including disaccharides, and purine nucleosides, in good yields.
ISOTOPE EFFECT IN THE REDUCTION OF TRIFLUOROACETOPHENONE
Authors: Ohno Atsuyoshi , Yamamoto Hiroyuki , Okamoto Tadashi , Oka Shinzaburo , Ohnishi Yutaka 
Published: July 2006

Abstract
Kinetic (kH/kD) and product (YH/YD) isotope effects have been studied for the reduction of α,α,α-trifluoroacetophenone with 1-propyl-1,4-dihydronicotinamide in acetonitrile in the presence or absence of magnesium perchlorate. It is concluded that the magnesium ion catalyzes the initial electron-transfer process of the reduction.
SYNTHESIS AND REACTIONS OF NEW HIGHLY STRAINED UNSATURATED PROPELLANES, [4.2.1]PROPELLA-2,4,7-TRIENES
Authors: Toda Fumio , Yoshioka Takayuki , Kawada Masao 
Published: July 2006

Abstract
The title propellane, 2,7-di-tert-butyl-11,11-dichloro-4,5,9,10-tetraaryl-tetracyclo[6.2.1.0.03,6]undeca-2,4,6,9-tetraene (3), was prepared by cycloaddition of dichlorocarbene to the benzene nucleus of 2,7-di-tert-butyl-4,5,9,10-tetraaryl-tricyclo[6.2.0.03,6]deca-1,3(6),4,7,9-pentaene (1). On Ag+-induced methanolysis and acetolysis of 3a, its endo-Cl reacted easily and endo-methoxy (6) and endo-acetoxy derivative (9) were obtained, respectively, probably via bishomoallyl cation of pyramidal structure (5). Hydrolysis of 3a and 9 afforded 1a.
A STEREOSELECTIVE SYNTHESIS OF 1,2-DIALKYLETHENYL BROMIDES VIA MONOHYDROBORATION OF 1-BROMO-1-ALKYNES WITH DIALKYLBORANES
Authors: Masuda Yuzuru , Arase Akira , Suzuki Akira 
Published: July 2006

Abstract
Treatment of 1-bromo-1-alkenyldialkylboranes with lead(IV) acetate or iodosobenzene diacetate afforded 1-bromo-1,2-dialkylethylenes in moderate yields. Furthermore, both E-isomers and Z-isomers could be independently obtained as the main products by the use of different reaction conditions.
ELECTROCHEMICAL REACTION OF TRIALKYLBORANES WITH ACETONE
Authors: Takahashi Yuzuru , Tokuda Masao , Itoh Mitsuomi , Suzuki Akira 
Published: July 2006

Abstract
Trialkylboranes are readily electrolyzed in acetone solution, containing tetraalkylammonium salts to give corresponding 2-alkyl-4,4,5,5-tetramethyl-1,3,2-dioxaborolanes (1) and 2-alkyl-4,4,6-trimethyl-1,3,2-dioxaborinanes (2) in good yields.
RAMAN SCATTERING STUDY ON TAUTOMERISM OF l-HISTIDINE
Authors: Ashikawa Ikuo , Itoh Koichi 
Published: July 2006

Abstract
The Raman spectra of l-histidine in basic aqueous solutions show the scattering peaks clearly assignable to the 1-N and 3-N protonated forms of the imidazole ring. From the measurement of the spectra as a function of temperature, it was concluded that the 1-N protonated form is energetically more stable than the 3-N protonated form and ΔH is 1.0±0.3kcal/mol.
3-AMINOCARBONYL-N-BENZYL-1,4-DIHYDROQUINOLINE: A NOVEL NADH MODEL COMPOUND WHICH RESISTS THE ACID CATALYZED DECOMPOSITION
Authors: Shinkai Seiji , Hamada Hisatake , Ide Toyoko , Manabe Osamu 
Published: July 2006

Abstract
The title NADH model compound resists acids unlike the conventional NADH model compounds. Thus, added acids accelerate the reduction of a carbonyl substrate selectively in the general-acid catalyzed manner.
A FACILE TRANSFORMATION OF ESTER GROUPS TO VINYL GROUPS BY THE ELECTROREDUCTIVE METHOD
Authors: Shono Tatsuya , Matsumura Yoshihiro , Kashimura Shigenori 
Published: July 2006

Abstract
A facile method of the transformation of esters to vinyl compounds was developed by using the electroreductive 1,2-elimination as a key step. β-Hydroxysulfones were electrochemically reduced to vinyl compounds in good yields. Hydroxyolefins could be also prepared from the corresponding lactones.
STRUCTURES OF PLATYCODIN-D3, PLATYCONIC ACID-A, AND THEIR DERIVATIVES, SAPONINS ISOLATED FROM ROOT OF PLATYCODON GRANDIFLORUM A. DE CANDOLLE, DETERMINED BY CARBON-13 NMR SPECTROSCOPY
Authors: Ishii Hiroshi , Tori Kazuo , Tozyo Takehiko , Yoshimura Yohko 
Published: July 2006

Abstract
Six new saponins (5–10) and three new prosapogenins (13, 14, and 16) have been isolated from the root of Platycodon grandiflorum A. DC. Their structures have been elucidated by 13C NMR spectroscopy.
A ROLE OF 2,7-DIISOPROPYL GROUPS IN THE STABILITY OF THIEPIN
Authors: Yano Shigeo , Nishino Keitaro , Nakasuji Kazuhiro , Murata Ichiro 
Published: July 2006

Abstract
2,6-Diisopropyl-4-methylthiopyrylium tetrafluoroborate (18) was converted into the diazoester (19) by reaction with ethyl lithiodiazoacetate. Treatment of 19 with Pd(II) complex resulted in exclusive formation of ethyl 4,5-diisopropyl-2-methylbenzoate (21) through sulfur extrusion of the intermediate thiepin (20) even at −70°C.
BINDING AND PHOTOIONIZATION OF N-SUBSTITUTED 2-CHLOROPHENOTHIAZINES IN SDS MICELLES
Authors: Iwaoka Teiki , Kondo Michio 
Published: July 2006

Abstract
The analogs of chlorpromazine with different length of methylene unit, were synthesized and examined on their binding sites and on the photochemical reactions in the aqueous micelle of sodium dodecyl sulfate (SDS). In spite of the difference of the binding position in the micelle, all the compounds employed show the same photochemical behaviors of the transient species and give the same types of photoproducts.
CATALYTIC ACTIVITY OF TiO2 TREATED WITH HEXAFLUOROACETONE IN THE ISOMERIZATION OF 1-BUTENE
Authors: Okazaki Susumu , Kurosaki Akito 
Published: July 2006

Abstract
The catalytic activity of TiO2 is markedly enhanced by treatment with hexafluoroacetone. The IR spectrum of pyridine adsorbed on treated TiO2 and the selectivity of 2-butene indicate that the active sites are Brönsted acid formed by the interaction between hexafluoroacetone and the TiO2 surface.
A PRODUCT ON THE SURFACE OF COPPER-EVAPORATED POLYMERIC FILM PREPARED BY SUCCESSIVE TREATMENTS OF ELECTRON BOMBARDMENT AND HEATING
Authors: Ohno Shin 
Published: July 2006

Abstract
On a copper-evaporated polymeric film consisting of a poly(vinylchloride) type matrix and a photo- or thermo-chromic benzospiran compound, a hydrophobic covering product was selectively prepared under successive treatments of electron bombardment in vacuo and heating in nitrogen. In the part bombarded at a high intensity, the chemical properties of the surface copper were preserved during the heating. In the non-bombarded part, on the other hand the copper was covered by diffused components from the organic layer during the heating and the film surface was turned insoluble in acid.
PHOTO-INDUCED ADDITION OF IMIDES TO OLEFINS—REMARKABLE DIFFERENCE BETWEEN PHTHALIMIDES AND SUCCINIMIDES
Authors: Maruyama Kazuhiro , Kubo Yasuo 
Published: July 2006

Abstract
On irradiation, phthalimides 4 dissolved in acetonitrile reacted with various olefins 1 to give 5, while the reaction of succinimides with the corresponding olefins resulted in the formation of oxetanes. Photolysis of N-alkenylphthalimides 8 in acetonitrile afforded 9. The presence of N-alkenyl δ,ε double bond (counted from N atom) is extremely preferable for the formation of 9.
A CONVENIENT METHOD FOR THE PREPARATION OF ALLENES FROM PROPARGYL ALCOHOLS USING 1-ETHYL-2-FLUORO-4,6-DIMETHYLPYRIDINIUM TETRAFLUOROBORATE
Authors: Mukaiyama Teruaki , Kawata Ken 
Published: July 2006

Abstract
In the presence of a catalytic amount of copper(I) iodide, Grignard reagents reacted with 2-propargyloxypyridinium salts, formed in situ from propargyl alcohols and 1-ethyl-2-fluoro-4,6-dimethylpyridinium tetrafluoroborate, to produce various substituted allenes in good yields.
A CONVENIENT ROUTE FROM 1-ALKENES TO TERMINAL ACETYLENES VIA HYDROALUMINATION REACTIONS
Authors: Sato Fumie , Kodama Hiroyuki , Sato Masao 
Published: July 2006

Abstract
Hydroalumination of 1-alkenes with lithium aluminum hydride by catalysis of titanium tetrachloride followed by treatment with bromopropadiene was found to be a convenient route to add the acetylene moiety to the terminal double bond.
REACTION OF α-CHLORO KETONES WITH ALLYLTRI-n-BUTYLTIN. CONTROL OF REACTION SITE BY THE VARIATION OF REACTION CONDITIONS
Authors: Kosugi Masanori , Arai Haruyoshi , Yoshino Akihiro , Migita Toshihiko 
Published: July 2006

Abstract
Reaction of α-chloro ketones with allyltri-n-butyltin proceeds to afford 4-butenyl ketones in the presence of azobisisobutyronitrile, while in the presence of catalytic amounts of tetrakis(triphenylphosphine)palladium allyl epoxides are obtained.
APPLICATION OF HYDROALUMINATION REACTIONS IN ORGANIC SYNTHESES. A CONVENIENT ROUTE TO TERMINAL ALLENES FROM 1-OLEFINS
Authors: Sato Fumie , Oguro Kaoru , Sato Masao 
Published: July 2006

Abstract
Hydroalumination of 1-olefins with lithium aluminum hydride followed by treatment with 3-bromo-1-propyne in the presence of a catalytic amount of copper(I) chloride resulted in coupling. This new development provides a general method for the synthesis of terminal allenes.
REACTION OF ALKYL ARYL SULFOXIDE WITH METHYL PHENYL N-CHLOROSULFOXIMIDE. DIRECT SYNTHESIS OF OPTICALLY ACTIVE α-CHLORO SULFOXIDE WITH OPTICALLY ACTIVE N-CHLOROSULFOXIMIDE
Authors: Morita Hiroyuki , Itoh Hideaki , Furukawa Naomichi , Oae Shigeru 
Published: July 2006

Abstract
Treatment of a few alkyl aryl sulfoxides with methyl phenyl N-chlorosulfoximide resulted in the quantitative formation of α-chloro sulfoxides. When the optically active methyl phenyl N-chlorosulfoximide was used, the α-chloro sulfoxides having optical activity on the sulfinyl sulfur were obtained from the corresponding sulfoxides.
REACTIONS OF AN ISOCYANIDE–PALLADIUM(II) COMPLEX WITH NITRILYLIDES
Authors: Hiraki Katsuma , Fuchita Yoshio 
Published: July 2006

Abstract
cis-[PdCl2(PPh2Et)(CN–C6H4–CH3–p)] reacted with nitrilylides, derived from N-[(p-nitrophenyl)methyl]arylcarboximidoyl chlorides and triethylamine, to afford novel cyclic carbene–palladium(II) complexes, cis-[PdCl2(PPh2Et){CN(C6H4–CH3-p)C(C6H4–R-p)=N–CH(C6H4–NO2-p)}].
LONG-RANGE 13CSP2–19F SPIN–SPIN COUPLINGS IN MONOFLUORO[2.2]CYCLOPHANES
Authors: Takemura Tetsuo , Mori Nobuo 
Published: July 2006

Abstract
The title couplings are observed in 8-fluoro[2.2]metacyclophane, 1, and 8-fluofo[2.2]metaparacyclophane, 2, but not in 4-fluoro[2.2]paracyclophane, 3.
TRIFLIC ACID CATALYZED DOUBLE-CYCLIZATION OF N,N-DIBENZYL-2-PROPYNYLAMINE AND REIATED COMPOUNDS
Authors: Takayama Hiroaki , Suzuki Takayoshi , Nomoto Takashi 
Published: July 2006

Abstract
Triflic acid catalyzed double-cyclization reactions of N,N-dibenzyl-2-propynylamine, N-benzyl-N-phenethyl-2-propynylamine, and N-(α-benzylphenethyl)-2-propynylamine afforded 1-aza-5-methyldibenzo [c,f]bicyclo [3.3.1] nona-3,6-diene,1-aza-6-irethyldibenzo[d,q]bicyclo[4.3.1]deca-4,7-diene and 6-aza-1-methyldibenzo[b,i]bicyclo[3.3.2]nona-2,8-diene in high isolated yields, respectively.
SYNTHESIS AND CONFORMATION OF cyclo(-d- OR l-TYR(ME)-l-ILE-l-PRO-l-LEU-), DIASTEREOMERIC AND SIMPLIFIED ANALOGS OF CYL-2
Authors: Yasutake Akira , Lee Sannamu , Aoyagi Haruhiko , Kato Tetsuo , Izumiya Nobuo 
Published: July 2006

Abstract
Diastereomeric cyclotetrapeptides, cylol (-d- or l-Tyr(Me)-l-Ile-l-Pro-l-Leu-) (1d or 1l) which are simplified analogs of a phytotoxin Cyl-2, have been synthesized. A conformation with trans-trans-cis-trans peptide bonds,l-Ile-l-Pro bond being cis, is proposed for 1d on the basis of 1H-and 13C-NMR data.
BIS(FLUOROALKOXY)TRIPHENYLPHOSPHORANES: PREPARATION AND REACTIONS
Authors: Kubota Toshio , Kitazume Tomoya , Ishikawa Nobuo 
Published: July 2006

Abstract
Bis(fluoroalkoxy)triphenylphosphoranes were prepared by the replacement of bromines of triphenylphosphine dibromide by fluoroalkoxides [C6H5C(CF3)2ONa, and CF3CH2ONa]. Alcohols and carboxylic acids readily reacted with Ph3P(OCH2CF3)2 to form corresponding 2,2,2-trifluoroethyl ethers and esters, respectively. Ph3P(OC(CF3)2C6H5]2, however, was so stable that it did not undergo reactions with these hydroxyl compounds.
THE FORMATION OF SCHIFF BASE FROM DIMETHYL α, β-DIBROMOSUCCINATE AND AN ASYMMETRIC SYNTHESIS OF ASPARTIC ACID
Authors: Harada Kaoru , Nakamura Isao 
Published: July 2006

Abstract
The reaction of α-methylbenzylamine with dimethyl meso and racemic dibromosuccinate resulted in the formation of trans-aziridine(Ib) and Schiff base(III) of dimethyl oxaloacetate. The optically active III was hydrogenated and hydrogenolyzed to form optically active aspartic acid(V). The optical purity of V reached up to 49 %.
REACTION OF BENZOYL PEROXIDE WITH ALLYLTRIMETHYLTIN
Authors: Kosugi Masanori , Hanh Phan Quoc , Nakayama Mitsumasa , Migita Toshihiko 
Published: July 2006

Abstract
Decomposition of benzoyl peroxide in allyltrimethyltin affords allyl benzoate and trimethyltin benzoate. Kinetic investigation shows that the reaction mainly proceeds through the cyclic transition state. This is the first example of molecular reaction between peroxide and allyltin compound.
SYNTHESES OF S-PHENYL 3-OXOBUTANETHIOATES AND 2H-1-BENZOTHIOPYRAN-2-ONE DERIVATIVES (THIOCOUMARINS)
Authors: Nakazumi Hiroyuki , Kitao Teijiro 
Published: July 2006

Abstract
S-Phenyl 3-oxobutanethioates,precursor for preparation of thiocoumarins, were prepared from benzenethiols and diketene in the presence of triethylamine. Cyclization of these compounds with PPA gave thiocoumarin and/or isomeric thiochromone derivatives.
CHARGE TRANSFER COMPLEXES OF THIAHETEROHELICENES WITH 7,7,8,8-TETRACYANOQUINODIMETHANE. A NEWLY FASHIONED STERIC EFFECT
Authors: Yamada Koh-ichi , Yamada Takako , Kawazura Hiroshi 
Published: July 2006

Abstract
The title effect in the charge transfer complexes of thiaheterohelicenes and tetracyanoquinodimethane was characterized by their spectroscopic and electrical properties.
RAMAN SPECTROSCOPIC STUDIES ON CONFORMATIONAL POLYMORPHISM OF 1-BROMOPENTANE
Authors: Ogawa Yoshiki , Tasumi Mitsuo 
Published: July 2006

Abstract
Two crystal modifications of l-bromopentane gave entirely different Raman spectra, which undoubtedly indicated simultaneous occurrence of a crystal transformation and a conformational change of molecules in the crystal. The molecular conformation is trans-trans-trans (TTT) in one crystal modification (Crystal I) and trans-trans-gauche (TTG) in the other (Crystal II). The polymorphism of l-iodopentane, which presents a contrast to the case of 1-bromopentane, is also described.
THREE ACETYLATED DITERPENE DIOLS OF VERRUCOSANE TYPE FROM THE LIVERWORT, Mylia verrucosa
Authors: Hayashi Shûichi , Matsuo Akihiko , Nozaki Hiroshi , Nakayama Mitsuru , Takaoka Daisuke , Hiroi Mitsuru 
Published: July 2006

Abstract
Three new monoacetates of diterpene diols were isolated from Mylia verrucosa and the structures were determined as [2], [3] and [9] on the basis of chemical and spectral evidence.
THE SYNTHESIS AND REACTION OF 3,4-DIMETHYLENE-1,5-CYCLOHEPTADIENE
Authors: Oda Mitsunori , Kato Kazuo , Kitahara Yoshio , Kuroda Shigeyasu , Morita Noboru , Asao Toyonobu 
Published: July 2006

Abstract
Title compound (5) has been synthesized by conversion of dimethyl 1,3,5-cycloheptatriene-3,4-dicarboxylate to 3,4-bis(bromomethyl)-1,3,5-cycloheptatriene followed by zinc-copper reduction. 5 changed to spiro dimer (13) on standing at room temperature and reacted with dienophiles to give Diels–Alder adducts fused with cycloheptatriene.
A MILD AND EFFICIENT METHOD FOR THE ESTERIFICATION OF CEPHALOSPORANIC ACIDS
Authors: Matsueda Rei 
Published: July 2006

Abstract
A mild and efficient method for the preparation of esters of cephalosporanic acids via the 3-nitro-2-pyridinethiol ester, easily prepared by the reaction of cephalosporanic acid salt with 3-nitro-2-pyridinesulfenyl halide and triphenylphosphine, is reported. Pure Δ3-esters of various cephalosporanic acids were prepared in good yields by this method without accompanying isomerization of the thiazine ring.
STUDIES ON PHOTOACTIVATED ELCTRON-TRANSPORT SYSTEMS. II. ELECTRON-TRANSFER QUENCHING OF PHOTOEXCITED RUTHENIUM(II) COMPLEXES BY VARIOUS BIPYRIDINIUM IONS
Authors: Takuma Keisuke , Shuto Yoshito , Matsuo Taku 
Published: July 2006

Abstract
Rate constants for quenching emission from photoexcited tris-(2,2′-bipyridine)- and tris(1,10-phenanthroline)Ru(II) complexes by bipyridinium ion vary with the redox potential of the quencher. Annihilation of the geminate ion pairs at the quenching step can be reduced by the addition of EDTA. The effect of EDTA increases with the concentration but quickly reaches asymptotic values as expected in the presence of an extremely fast geminate recombination of ion pairs in a cage.
SYNTHESIS OF CARPACHROMENE
Authors: Jain A C , Khazanchi R , Kumar A 
Published: July 2006

Abstract
Acacetin (4) on reaction with prenyl bromide in the presence of metbanolic sodium methoxide yielded 6,8-di-C, C-prenyl-(5) and 6-C-prenyl-(9) derivatives. DDQ reaction with 9 followed by methylation afforded di-O-methyl carpachromene (2). Nuclear prenylation of apigenin (3) gave 6,8-di-C,C-prenyl-(15) and its 7-prenyl ether (14) and 6-C-prenyl-(16) derivatives. DDQ reaction of 16 provided natural carpaoEromene.2 The structure of the isopentenylated apigenin isolated by Dreyer et al.3 requires re-examination.
SYNTHESIS OF RACEMIC 8-C-PRENYL-6″,6″-DIMETHYLPYRANO(2″, 3″:7,6)NARINGENIN
Authors: Jain A C , Gupta R C , Sarpal P D 
Published: July 2006

Abstract
Reaction of naringenin (1) with 2-methylbut-3-en-2-ol in the presence of BF3–Et2O gives a mixture of 6-C-prenyl-(5), 8-C-prenyl-(8) and 6,8-di-C,C-prenyl-(2) derivatives. The last compound (2) with DDQ afforded 8-C-prenyl-6″,6″-dimethylpyrano(2″,3″:7,6)naringenin (11) along with its angular isomer (10) in racemic forms.
HIGH CATALYTIC ACTIVITY OF NICKEL SUPPORTED ON BASIC OXIDE FOR HYDROGENATION OF N,N-DIMETHYL-2-PROPENYLAMINE
Authors: Imai Hisaya , Hattori Hideshi , Tanabe Kozo 
Published: July 2006

Abstract
Various metal oxides were used as supports of Ni catalyst for hydrogenation of N,N-dimethyl-2-propenylamine. In general, the activities of basic oxide-supported Ni catalysts were higher than those of acidic oxide-supported ones. Among the catalysts examined, Ni/MgO exhibited the highest activity.
THE RHODIUM CATALYZED N-HETEROCYCLIZATION. THE SYNTHESIS OF QUINOLINES FROM AMINOARENES AND ALDEHYDES
Authors: Watanabe Yoshihisa , Yamamoto Michihiro , Shim Sang Chul , Mitsudo Take-aki , Takegami Yoshinobu 
Published: July 2006

Abstract
Aminoarenes react with aldehydes in the presence of a catalytic amount of a rhodium complex at 180°C to give substituted quinolines in good to excellent yields. Thus, quinaldine derivatives are readily prepared from aminobenzenes and ethanal.
SILVER ION INDUCED CYCLIZATION REACTIONS OF 1,1-DIMETHYL-2 -TRIMETHYLSILOXYALLYL CHLORIDE WITH 1,3-DIENES
Authors: Shimizu Nobujiro , Tsuno Yuho 
Published: July 2006

Abstract
1,1-Dimethyl-2-trimethylsiloxyallyl chloride in the presence of 1,3-dienes gives seven-membered cyclic enones on treatment with silver perchlorate in yields of 85% with furan, 91% with cyclopentadiene, and 64% with isoprene, whereas the reaction with 2-methylfuran yields a mixture of two (5-methyl-2-furyl)butanone derivatives and two bicyclic enones.
ONE OF THE SIMPLEST METHODS FOR THE REPLACEMENT OF DIAZONIUM GROUPS BY HYDROGEN OR DEUTERIUM
Authors: Shono Tatsuya , Matsumura Yoshihiro , Tsubata Kenji 
Published: July 2006

Abstract
A simple and versatile method for the replacement of aromatic diazonium groups by hydrogen or deuterium was exploited by utilizing thiophenol as a reducing agent. The yields were over 84% for 14 examples and the isotopic purity was 100%. The reaction may involve a free radical mechanism.
INFLUENCE OF THE FLUIDITY OF DIALKYLAMMONIUM BILAYER MEMBRANES ON THE CATALYTIC HYDROLYSIS OF p-NITROPHENYL PALMITATE
Authors: Kunitake Toyoki , Sakamoto Tetsuo 
Published: July 2006

Abstract
In the hydrolysis of p-nitrophenyl palmitate catalyzed by a long-chain imidazole in the presence of the aqueous bilayer membrane of double-chain ammonium surfactants, the Arrhenius plots showed inflection points which were apparently related to the phase transition of the bilayers.
REACTIONS OF t-ALKYL THIONITRATES WITH p-AMINOPHENOLS: ONE POT SYNTHESES OF N-(t-ALKYLTHIO)-p-BENZOQUINONEIMINES
Authors: Oae Shigeru , Shinhama Koichi , Kim Yong Hae 
Published: July 2006

Abstract
Various N-(alkylthio)-p-benzoquinoneimines were readily synthesized by treating corresponding p-aminophenols with t-alkyl thionitrates.
A CONVENIENT METHOD FOR THE PREPARATION OF α-CHLORONITRILES
Authors: Mukaiyama Teruaki , Kawata Ken , Sasaki Akira , Asami Masatoshi 
Published: July 2006

Abstract
2-Chloro-3-ethylbenzoxazolium tetrafluoroborate reacts smoothly with various cyanohydrins in the presence of tetraethylammonium chloride to afford α-chloronitriles in good yields.
SYNTHESIS OF [2]PARACYCLO[2]PARACYCLO[2](1,1′)FERROCENOPHANE DERIVATIVES
Authors: Kasahara Akira , Izumi Taeko , Shimizu Iwao 
Published: July 2006

Abstract
[2]Paracyclo[2]paracyclo[2](1,1′)ferrocenophane derivatives having olefinic or acetylenic bonds and aromatic rings were synthesized by intramolecularly titanium-induced reductive coupling of carbonyl compounds. The transannular π-electronic interactions between two olefinic or acetylenic bonds and two benzene rings were examined on the basis of electronic spectra.
EFFECT OF WATER ON STABILITY OF CARBON BLACK DISPERSED IN NONAQUEOUS AEROSOL OT SOLUTIONS
Authors: Kitahara Ayao , Tamura Takamitsu , Matsumura Shigeru 
Published: July 2006

Abstract
Water solubilized in the reversed micelle of Aerosol OT affected markedly the stability of carbon black dispersed in the solution. For the dilute dispersion of carbon black in the fixed concentration of Aerosol OT, the addition of water stabilized electrostatically the dispersion, following massive flocculation and finally recovered stability. The latter stability is due to the formation of network.