bluuebunny/crossref_metadata_2025_split huggingface dataset:
STEREOSPECIFIC SYNTHESIS OF (±)-β-SANTALOL
Authors: Sato Kikumasa , Miyamoto Osamu , Inoue Seiichi , Honda Kiyoshi 
Published: July 2006

Abstract
A stereospecific synthesis of 1-acetoxy-5-bromo-2-methyl-2-cis-pentene in 4 steps starting from 3-formyl-5,6-dihydro-2H-pyran, dimer of acrolein, followed by alkylation of 2-ethoxycarbonyl-3-methylbicyclo[2.2.1]hept-2-ene with the bromide furnished a facile synthesis of (±)-β-santalol.
REDUCTION OF N-METHYLACRIDINIUM ION BY 3-AMINOCARBONYL-N-BENZYL-1,4-DIHYDROQUINOLINE: SUPPORTING EVIDENCE FOR THE MULTI-STEP MECHANISM OF THE NADH MODEL REDUCTION
Authors: Shinkai Seiji , Tsuno Takaharu , Manabe Osamu 
Published: July 2006

Abstract
The reduction of N-methylacridinium ion by 3-aminocarbonyl-N-benzyl-1,4-dihydroquinoline showed the isotope effect discrepancy. The result supports the multi-step hydrogen transfer mechanism.
REARRANGEMENT OF 1,3-BROMOCHLOROPROPANE ON ACTIVATED ALUMINA
Authors: Shinoda Kiyonori , Yasuda Kensei 
Published: July 2006

Abstract
The rearrangement of 1,3-bromochloropropane (BCP) on activated alumina was carried out at 160 – 280°C. This reaction proceeded as follows. Br(CH2)3Cl \leftrightarrows Br(CH2)3Br + Cl(CH2)3Cl It was suggested that the acidic sites of alumina played an important role in the rearrangement of halogen atom.
ELECTRON TRANSFER PROCESSES IN THE REACTION OF PHENOTHIAZINE AND 10-METHYLPHENOTHIAZINE WITH 2,2′-AZOBISISOBUTYRONITRILE
Authors: Fujihara Hisashi , Fuke Shunichi , Yoshihara Masakuni , Maeshima Toshihisa 
Published: July 2006

Abstract
Electron transfer processes in the reaction of phenothiazine and 10-methylphenothiazine with 2,2′-azobisisobutyronitrile have been examined by UV and ESR spectroscopies. The reaction was found to proceed via one electron transfer from phenothiazine derivatives to a cyanoisopropyl radical.
NEW SYNTHESIS OF 1,3-DIMETHYL-7-HYDROXYPYRROLO[3,2-d]PYRIMIDINE-2,4(1H,3H)-DIONES (9-HYDROXY-9-DEAZATHEOPHYLLINES)
Authors: Yoneda Fumio , Motokura Miyuki , Otagiri Masaki 
Published: July 2006

Abstract
Treatment of 5-nitro-1,3,6-trinitrouracil with aryl aldehydes in the presence of piperidine causes the condensation to the 5-nitro-6-styryluracil derivatives, followed by the intramolecular cyclization including piperidine-catalyzed oxidation-reduction to give rise to the corresponding 1,3-dimethyl-7-hydroxypyrrolo[3,2-d]pyrimidine-2,4(1H,3H)-dione (9-hydroxy-9-deazatheophylline) derivatives in a single step. Some properties of these compounds are discussed.
ONE-STEP SYNTHESIS OF HOMOTERPENOIC CARBOXYLIC ACIDS FROM β-ISOPROPENYL-β-PROPIOLACTONE AND ORGANOCOPPER REAGENTS
Authors: Fujisawa Tamotsu , Sato Toshio , Kawashima Masatoshi , Nakagawa Masakuni 
Published: July 2006

Abstract
Regioselective reaction of Grignard reagents in the presence of a copper(I) catalyst or of organocuprates with the terminal vinyl carbon of β-isopropenyl-β-propiolactone through the SN2′ pathway affords 4-methyl-3-alkenoic acids in which the (E)-isomers predominate in good yields. Synthetic utility of this reaction is demonstrated in one-step synthesis of homoterpenoic carboxylic acids.
THE PHOTOCATALYTIC DEHYDROGENATION OF 2-PROPANOL BY USING RhCl(PPh3)3
Authors: Arakawa Hironori , Sugi Yoshihiro 
Published: July 2006

Abstract
RhCl(PPh3)3 (Wilkinson complex) catalyzes the dehydrogenation of 2-propanol under the photo-irradiation at room temperature. The catalytic activity of the reaction mixture including 2-propanol and this complex is very high, especially in the case of the preparation of this mixture under the oxygen atmosphere, and has the maximum value at the special concentration range of this complex.
PERFLUOROALKYLTIN(IV) HALIDES: A NOVEL PERFLUOROALKYLATING AGENT FOR CARBONYL COMPOUNDS
Authors: Kitazume Tomoya , Ishikawa Nobuo 
Published: July 2006

Abstract
Perfluoroalkyltin(IV) halides (RfSnX2I) were prepared in situ by the oxidative addition of perfluoroalkyl iodides to tin(II) halide in N,N-dimethylformamide. Aldehydes and ketones readily reacted with RfSnCl2I giving perfluoroalkylcarbinols in the N,N-dimethylformamide-pyridine system. RfSnF2I, however, did not undergo the reactions with these carbonyl compounds.
THE CONTRIBUTION OF LATTICE OXYGEN ATOMS OF PRASEODYMIUM OXIDE TO ITS CATHODIC PERFORMANCE
Authors: Takasu Yoshio , Matsuda Yoshiharu , Yamashita Katsumi 
Published: July 2006

Abstract
The cathodic performance of praseodymium oxide systems (PrO2.0, PrO1.83, and PrO1.71) was examined galvanostatically in a mixed solvent of propylene carbonate and 1,2-dimethoxyethane containing LiClO4 at 25 °C. The cathode potential becomes more positive and decays more slowly for the praseodymium oxide with higher oxygen contents.
THE BIRCH REDUCTION OF 2-ACYLTHIOPHENES. SYNTHESIS OF 1,3-DIENYL KETONES FROM 2-ACYLTHIOPHENES
Authors: Kosugi Kimihiko , Anisimov Alexander V , Yamamoto Hiroshi , Yamashiro Ryuichi , Shirai Kozo , Kumamoto Takanobu 
Published: July 2006

Abstract
The Birch reduction of 2-acyl or 2-acyl-5-alkylthiophenes and subsequent alkylation by alkyl halides gave 2-acyl-2-alkyl or 2-acyl-2,5-dialkyl-2,5-dihydrothiophenes in good yields. Further, 1,3-dienyl ketones were obtained in good yields by the thermolysis of 2,5-dihydrothiophene 1,1-dioxides which were obtained by the oxidation of resulted dihydrothiophene derivatives with m-chloroperbenzoic acid.
SYNTHESIS AND LUMINESCENCE PROPERTIES OF TRIS(BIPYRIDINE)RUTHENIUM(II)-CONTAINING VINYL POLYMERS
Authors: Furue Masaoki , Sumi Katsuhiro , Nozakura Shun-ichi 
Published: July 2006

Abstract
The luminescence properties of poly[Ru(bpy)2(6-vinyl-bpy)-co-6-vinyl-bpy],(I) were compared with those of Ru(bpy)32+ at 77–298 K. A larger depletion of luminescence intensity and lifetime was observed in I in fluid solution. The dynamic quenching processes were suggested to be the dominant factor for the energy dissipation in I.
FT-IR SPECTROSCOPY OF CHEMICALLY BONDED SILICA GEL FOR HIGH PERFORMANCE LIQUID CHROMATOGRAPHY
Authors: Watanabe Noriyuki 
Published: July 2006

Abstract
The surfaces of the silica gels modified with Boc-amino acid were characterized by using FT-IR spectroscopy. It was proved that the formation of covalent bonding between Boc-amino acid and aminated silica gel occured.
SELECTIVE ZINC DEPOSITION ONTO METAL-LAMINATED ORGANOPOLYMERIC FILM
Authors: Maruyama Kazunori , Ohno Shin 
Published: July 2006

Abstract
The photo- and electron-exposures affected zinc vapour deposition onto a surface of metal-laminated polymeric film. In the copper-laminated polymethyl methacrylate film containing tetrabromomethane, ultra-violet rays and electron exposures caused the liberation of hydrogen bromides which reacted with surface copper to give copper(I) compounds. The thickness of the deposited zinc is related to the amount of copper(I) compounds produced on the surface.
THE HIGH SPIN SPECIES IN SOLUTION OF DEUTEROHEMIN WITH TWO IMIDAZOLES COVALENTLY LINKED TO PORPHYRIN RING AND ITS EQUILIBRIUM WITH THE LOW SPIN SPECIES
Authors: Okuyama Kazuo , Nozawa Tsunenori , Murakami Tasuku , Hatano Masahiro 
Published: July 2006

Abstract
MCD and NMR studies revealed that deuterohemin is, in part, in a five-coordinated high spin form in solution where two imidazoles bound covalently. For the chemical equilibrium between the high spin and the main low spin six-coordinated species, standard enthalpy and entropy changes were −11×103Jmol−1 and −52 K−1mol−1, respectively.
INSERTION OF BENZOYLNITRENE TOWARD HYDROCARBON C–H BONDS
Authors: Inagaki Masao , Shingaki Tadao , Nagai Toshikazu 
Published: July 2006

Abstract
Benzoylnitrene, generated photochemically from benzoyl azide, was inserted stereospecifically into the tertiary C–H bonds of cis- and trans-1,4-dimethylcyclohexanes. The insertion regioselectivities toward the C–H bonds were determined by use of 2-methylbutane and 2,3-dimethylbutane. The insertion proceeds involving the singlet nitrene, but not the triplet, and the photo-Curtius rearrangement takes place independently of the nitrene reaction.
METAL ION DEPENDENT SELECTIVE P–O VS. S–O BOND FISSION IN THE REACTION OF PHENYL PHOSPHATOSULFATE
Authors: Eiki Toshio , Tagaki Waichiro 
Published: July 2006

Abstract
Metal ion promoted highly selective P–O or S–O bond fission has been found in the aminolysis and the methanolysis of phenyl phosphatosulfate, i.e. magnesium ion promoted the P–O bond fission, while ferric ion promoted the S–O bond fission. The selectivity was almost 100% in each case.
CONFORMATION OF CHITIN AND N-ACYL CHITOSANS IN SOLID STATE AS REVEALED BY 13C CROSS POLARIZATION/MAGIC ANGLE SPINNING (CP/MAS) NMR SPECTROSCOPY
Authors: Saitô Hazime , Tabeta Ryoko , Hirano Shigehiro 
Published: July 2006

Abstract
13C chemical shifts of solid chitin and N-acyl chitosans were measured by cross polarization/magic angle spinning (CP/MAS) NMR spectroscopy. It was found that a regenerated chitin, N-acetyl chitosan, adopts conformation almost identical to that of naturally occurring chitin in solid state. Conformation of N-decanoyl and N-stearoyl chitosans is also similar to that of chitin except for the moiety of amide groups.
RAMAN STUDIES ON DONOR-DOPED trans-POLYACETYLENES
Authors: Furukawa Yukio , Harada Issei , Tasumi Mitsuo , Shirakawa Hideki , Ikeda Sakuji 
Published: July 2006

Abstract
The Raman spectra of donor-doped trans-polyacetylenes have been studied. They are different from the Raman spectra of either intact or acceptor-doped trans-polyacetylene. A model structure of donor-doped trans-polyacetylene is proposed.
THE STEREOSELECTIVE SYNTHESIS OF d-RIBULOSE
Authors: Suzuki Keisuke , Yuki Yoichi , Mukaiyama Teruaki 
Published: July 2006

Abstract
In the presence of zinc halide, 2-furyllithium reacts with 2,3-O-isopropylidene-d-glyceraldehyde in a highly stereoselective manner to give the chiral and stereo-defined alcohol, 2,2-dimethyl-4-(2-furyl)hydroxymethyl-1,3-dioxolane, which is further elaborated to afford d-ribulose in three steps.
A NOVEL CARBOXYL PROTECTING GROUP —THE CARBOXAMIDE DERIVED FROM 5,6-DIHYDROPHENANTHRIDINE—
Authors: Uchimaru Tadafumi , Narasaka Koichi , Mukaiyama Teruaki 
Published: July 2006

Abstract
Carboxyl groups protected as the amides derived from 5,6-dihydrophenanthridine are stable under a wide range of conditions and can be selectively deprotected by oxidation on treatment with cerium(IV).
ELECTRO-HYDROGENATION OF THE C=N DOUBLE BOND OF THIAZOLINE–AZETIDINONES IN AN AQUEOUS PERCHLORIC ACID-DICHLOROMETHANE- (LEAD ELECTRODES)
Authors: Torii Sigeru , Tanaka Hideo , Satsuki Makoto , Siroi Takashi , Saitoh Norio , Sasaoka Michio , Nokami Junzo 
Published: July 2006

Abstract
Electro-hydrogenation of the C=N double bond of thiazoline–azetidinone derivatives derived from penicillins G and V in an aqueous HClO4–CH2Cl2–(Pb electrodes) system by changing the current direction every 30 s gave thiazolidine-azetidinones in 77-100% yields.
A NEW APPROACH TO REGIOCONTROLLED ENONE TRANSPOSITIONS BASED ON THE FACILE CONVERSION OF α,β-ENONE TOSYLHYDRAZONES TO THE TRANSPOSED ALLYLIC SULFIDES
Authors: Mimura Tetsuya , Nakai Takeshi 
Published: July 2006

Abstract
A new, facile method for the conversion of α,β-enone tosylhydrazones to the transposed allylic sulfides is described which combines sulfenylation of the hydrazone dianions with hydride reduction of the α′-sulfenylated hydrazones. This novel route to allylic sulfides can constitute the sequences for the two directionally different types of enone transposition with 1,2-carbonyl shift.
ELECTRON SPIN RESONANCE STUDY ON SULFENAMIDE AND DIAMINO SULFIDE RADICAL CATIONS
Authors: Izuoka Akira , Kobayashi Michio 
Published: July 2006

Abstract
Esr spectra of radical cations of sulfenamides and diamino sulfides were observed in nitroalkane containing aluminum chloride.
These radicals are stable at room temperature. Non-equivalence of two N-methylene groups indicates the restricted rotation around S–N bond in the radical cations.
HIGHLY STEREOSELECTIVE CONSTRUCTION OF CHIRAL QUATERNARY CARBON: ASYMMETRIC SYNTHESIS OF β,β-DISUBSTITUTED γ-BUTYROLACTONES
Authors: Tomioka Kiyoshi , Cho Youn-Sang , Sato Fuminori , Koga Kenji 
Published: July 2006

Abstract
Asymmetric synthesis of β, β-disubstituted γ-butyrolactones was carried out in highly stereoselective and predictable way, by means of sequential dialkylation of (S) -γ-trityloxymethyl-γ-butyrolactone followed by lactone carbonyl transposition. Application to the synthesis of spirocyclic compound was also described.
OXYGEN ATOM TRANSFER REACTION THE REACTION OF CARBONYL COMPOUNDS WITH DIOXYGEN COMPLEXES
Authors: Aida Shun’ichi , Ohta Hiroyuki , Kamiya Yoshio 
Published: July 2006

Abstract
The reaction of peroxobis(triphenylphosphine)platinum with benzil or benzoic anhydride gave benzoic anhydride or benzoyl peroxide respectively. The scope of the above reactions is described.
APPLICATION OF THE COMBINATION OF SODIUM BISULFITE AS A PROTECTIVE REAGENT AND SOLID SUPPORTS IN THE SELECTIVE REDUCTION OF 4-ACETYLBENZALDEHYDE WITH DIBORANE
Authors: Chihara Teiji , Wakabayashi Tamie , Taya Kazuo 
Published: July 2006

Abstract
4-Acetylbenzaldehyde (2) has been selectively reduced by using a combination of protective group and solid supports. The formyl group of 2 was protected by addition of sodium bisulfite. The adduct, supported on silica gel, was then selectively reduced to 4-(1-hydroxyethyl)benzaldehyde with diborane.
A NEW TYPE OF COPPER(II) COMPLEXES SHOWING CURIOUS CD BEHAVIOR; COPPER(II) COMPLEXES WITH QUADRIDENTATE LIGANDS CONTAINING TWO (S)-PYRROLIDINYL GROUPS AND TWO AMIDE GROUPS
Authors: Murakami Tasuku , Hatano Masahiro 
Published: July 2006

Abstract
The copper(II) complexes described in the title exhibited absorption spectra quite different from ordinary planar copper(II) complexes. Addition of base transformed the donor atom of the amide group and hence the absorption and CD spectra intensively changed. On the basis of these findings, the stereochemistry was discussed.
ASYMMETRIC INDUCTION UNDER HIGH-PRESSURE. MICHAEL ADDITION OF NITROMETHANE TO CHALCONE CATALYZED BY CHIRAL ALKALOIDS
Authors: Matsumoto Kiyoshi , Uchida Takane 
Published: July 2006

Abstract
The Michael addition of nitromethane to chalcone was performed at 10 kbar in the presence of a catalytic amount of chiral alkaloids such as quinine, cinchonidine, quinidine, chinchonine, brucine, and strychinine. The extent of asymmetric induction reached up to 50 % e.e. with quinidine in toluene.
ELECTROCHEMICAL CHLORINATION OF BUTADIENE
Authors: Takasu Yoshio , Matsuda Yoshiharu , Shimizu Akinori , Morita Masayuki , Saito Mitsutaka 
Published: July 2006

Abstract
An Electrochemical chlorination of butadiene was investigated at 25 °C by using an H-type cell with a CoCl2–MeCN anolyte and an NH4Cl–H2O catholyte separated by an anion-exchange membrane. The electrolysis gave 3,4-dichloro-1-butene and trans-1,4-dichloro-2-butene in high current efficiencies.
EMISSION MÖSSBAUER SPECTROSCOPY OF 57Co-LABELLED MERCURY(II), TETRAALKYLAMMONIUM AND COBALT(II) CRYPTATE SALTS OF TETRATHIOCYANATOCOBALTATE(II)
Authors: Wei Ho-Hsiang , Endo Kazutoyo , Sano Hirotoshi 
Published: July 2006

Abstract
Based on the comparison of emission Mössbauer spectra of tetraalkylammonium and cobalt (II) cryptate salts of tetrathiocyanatocobaltate(II) at 78 K, it has been concluded that the cryptate is stable against the local radiolysis initiated by EC-decay and that it accomodates the transient57Fe(III) species before the restoration of 57Fe(II) state.
ELECTROCHEMICAL OXIDATION OF AROMATIC OLEFINS. DEPENDENCE OF THE REACTION COURSE ON THE STRUCTURE OF THE OLEFINS AND ON THE NATURE OF THE ANODES
Authors: Kojima Masanobu , Sakuragi Hirochika , Tokumaru Katsumi 
Published: July 2006

Abstract
Anodic oxidation of a series of substituted styrenes was investigated in methanol with a platinum and a graphite electrode. Use of the platinum anode gave mainly dimethoxylated monomers accompanied with one or more of three types of dimethoxylated dimers (αα-, αβ-, and ββ-dimers) depending on the substituents. Use of the graphite anode, however, afforded the ββ-dimers as the main product together with dimethoxylated monomers.
AMINE-CATALYZED 1,2-HALOSELENENYLATION OF ALKYNES WITH PHENYL SELENOCYANATE IN THE PRESENCE OF CUPRIC HALIDE
Authors: Tomoda Shuji , Takeuchi Yoshito , Nomura Yujiro 
Published: July 2006

Abstract
The reaction of phenyl selenocyanate with six common alkynes in the presence of cupric halide(halogen=Cl or Br) and triethylamine provided halogen-substituted vinyl selenides, 1,2-haloselenenylation products, in 66–96% yields.
CONJUGATIVE FACTORS AFFECTING THE SYN–ANTI ISOMERIZATION RATE PROCESS OF 1,3,10,12-TETRATHIA[3.3](2,6)PYRIDINOPHANE
Authors: Bottino Francesco , Pappalardo Sebastiano 
Published: July 2006

Abstract
The synthesis and VT-NMR study of the title compound are described. A comparison of its conformational behaviour with that of related [3.3]metacyclophanes has led to the conclusion that, in addition to steric hindrance effects, conjugative factors may prove important in affecting the syn–anti isomerization of heteroheterophanes .
STUDIES ON NUCLEOSIDES AND NUCLEOTIDES. SYNTHESIS OF 1-[5-(E)-ENOFURANOSYL] URACIL DERIVATIVES VIA ACI-NITROESTERS
Authors: Kimura Junji , Shimizu Tatsuhiko , Mitsunobu Oyo 
Published: July 2006

Abstract
When the aci-nitroester obtained from N3-methyl- or O2-methyluridine was allowed to react with acetylmethylenetriphenylphosphorane, 1-[(E)-5,6,8-trideoxy-β-d-ribo-oct-5-eno-1,4-furanosid-7-ulosyl]-3-methyl- or O2-methyl-uracil (12 or 14) was selectively obtained.
81Br NQR STUDY ON THE MIXED-VALENCE COMPOUNDS (NH4)4SbIIISbVBr12 AND Rb4SbIIISbVBr12
Authors: Terao Hiromitsu , Okuda Tsutomu , Negita Hisao 
Published: July 2006

Abstract
81Br NQR spectra were observed on the mixed-valence compounds (NH4)4SbIIISbVBr12 and Rb4SbIIISbVBr12 between 77 K and room temperature. Their temperature dependences exhibit some interesting features. The SbIIIBr63− in the NH4 salt is slightly distorted to the D2d symmetry. The Townes–Dailey analysis reveals that the net charges on both SbIII and SbV are almost the same.
NMR STUDY OF HIGH PRESSURE EFFECTS ON MOLECULAR CONFORMATIONS OF 2,11-DITHIA[3.3.1]PARACYCLOPHANE AND 2,11-DITHIA[3.3.2]PARACYCLOPHANE
Authors: Imashiro Fumio , Saika A , Yamada Hiroaki , Sera Akira 
Published: July 2006

Abstract
A high-pressure high-resolution NMR study for 2,11-dithiaI3.3.n]paracyclophanes (n=1,2) revealed that the Hx protons of ring A shift notably to high field, whereas the Ha,b protons of ring B move to low field. Reduction of the partial volumes under high pressure, being effected by changes in the dihedral angles, is responsible for the chemical shift changes.
119Sn, 13C, AND 1H NMR STUDIES ON SIX-COORDINATE DIMETHYLTIN BIS(CHELATE) COMPOUNDS
Authors: Otera Junzo , Hinoishi Tomoya , Kawabe Yotaro , Okawara Rokuro 
Published: July 2006

Abstract
119Sn, 13C, and 1H NMR studies on dimethyltin bis(chelate) compounds disclosed that the nature of coordination about tin can be best clarified in terms of δ(119Sn), while 2J(H–119Sn) values are useful for an approximate estimation of configuration of these compounds.
A NEW METHOD FOR ENANTIOSELECTIVE SYNTHESIS OF β-HYDROXY-α-AMINO ACIDS
Authors: Nakatsuka Takashi , Miwa Tetsuo , Mukaiyama Teruaki 
Published: July 2006

Abstract
Highly optically active threo-β-hydroxy-α-amino acids were obtained by the successive treatment of the chiral hydroxy imine 1, prepared by the condensation of t-butyl glycinate with a chiral ketol 3, with methylmagnesium iodide, potassium diisopropylamide and aldehyde.
SELECTIVE FORMATION OF ETHYLENE AND PROPENE FROM METHANOL OVER PYRAZINIUM SALTS OF H3PW12O40
Authors: Kasai Atsushi , Okuhara Toshio , Misono Makoto , Yoneda Yukio 
Published: July 2006

Abstract
The catalytic conversion of methanol into hydrocarbons has been studied over a variety of metal and organic salts of H3PW12O40. Pyrazinium salts exhibited remarkably high selectivity to ethylene and propene.
SYNTHESIS AND CONFIGURATIONAL STABILITY OF 3,8-DIBENZYL-1-AZACYCLOOCTA-1,2-DIENE : THE FIRST EIGHT-MENBERED CYCLIC KETENIHINE
Authors: Firl Joachim , Schink Karl , Kosbahn Wolfgang 
Published: July 2006

Abstract
The preparation of the eight-membered cyclic ketenimine 4 is reported. 4 isa mixture of two diastereomers which interconvert through configuration inversion of the C=C=N-moiety with ΔG≠&gt;19 kcal/mol. The fact that 4 shows a far higher barrier than structurally similar open chain derivatives or larger ring analogues of 4 proves that ketenimines stereoisomerize through nitrogen inversion.
STUDIES ON NOVEL HETEROCYCLIC SYSTEM: REACTION OF 2-CHLOROQUINOLINE WITH 2-MERCAPTOANILINE
Authors: Srikrishna Adusumilli , Reddy Rapolu Raji , Rao Somaraju Nagabhushan , Iyengar Deevi Sarangapani , Bhalerao Uday Triambakraj 
Published: July 2006

Abstract
Reaction of 2-chloroquinoline (I) with 2-mercaptoaniline (II) has been investigated. The product has been characterised as the yet unreported 12-thia-7,13-diazabenz[a]anthracene (V) system on the basis of spectral and analytical data. Probable mechanism for the formation of V has been discussed.
TETRAKIS[3,5-DI(F-METHYL)PHENYL]BORATE AS THE FIRST EFFICIENT NEGATIVELY CHARGED PHASE TRANSFER CATALYST. KINETIC EVIDENCES
Authors: Kobayashi Hiroshi , Sonoda Takaaki , Iwamoto Hidetoshi , Yoshimura Masaji 
Published: July 2006

Abstract
Remarkable accerelation was observed by use of sodium tetrakis[3,5-di(F-methyl)phenyl]borate as a negatively charged phase transfer catalyst for diazonium ion in the azo coupling reactions of aryldiazonium tetrafluoroborate with a range of diazophile components in liquid–liquid- and liquid–solid two-phase systems. Kinetics of the reactions was examined to confirm the phase transfer catalysis.
TOTAL SYNTHESIS OF ERGOT ALKALOID, (±)-6,7-SECOAGROCLAVINE
Authors: Somei Masanori , Yamada Fumio , Karasawa Yoshio , Kaneko Chikara 
Published: July 2006

Abstract
Ergot alkaloid, (±)-6,7-secoagroclavine was synthesized from 2-methyl-5-nitroisoquinolinium iodide by three routes. In the course of the study, a novel intra-molecular γ-alkylation of allyl alcohol was found. Reaction of Grignard reagents with nitroalkanes to afford N-alkyl hydroxylamines was effectively used in the present synthesis.
13C-NMR CHEMICAL SHIFTS OF DIFLUOROMETHYLENE GROUPS
Authors: Noshiro Makoto , Akatsuka Yonezoh , Jitsugiri Yukio , Yonemori Shigeaki 
Published: July 2006

Abstract
The carbon-13 chemical shifts are reported for difluoromethylene groups. These carbons resonate in a small range between 109–117 ppm. Triple resonance technique, 13C–{1H}{19F} was used in the case of compounds including hydrogen and fluorine.
SELECTIVE α-OXIDATION OF CYCLIC β-KETOESTERS WITH POTASSIUM FLUORIDE AND OXYGEN IN DIMETHYL SULFOXIDE: A SYNTHESIS OF KJELLMANIANONE
Authors: Irie Hiroshi , Katakawa Jun’ichi , Tomita Masako , Mizuno Yukio 
Published: July 2006

Abstract
Selective oxidation of cyclic β-ketoester groups with potassium fluoride-oxygen in dimethyl sulfoxide provided α-hydroxy-β-ketoesters in fair yields. Application of the oxidation to 5-methoxycarbonyl-3-methoxy-cyclopent-2-enone furnished (±)-kjellmanianone.
NOVEL SYNTHESIS OF ENOL ESTERS THROUGH SILVER-CATALYZED REACTION OF ACETYLENIC COMPOUNDS WITH CARBOXYLIC ACIDS
Authors: Ishino Yoshio , Nishiguchi Ikuzo , Nakao Satoshi , Hirashima Tsuneaki 
Published: July 2006

Abstract
It was found that the reactions of l,4-diacetoxy-2-butyne and related acetylenic compounds with carboxylic acids are efficiently catalyzed by silver salts to give the corresponding enol acetates in good yield.
SOLVENT EFFECTS ON FLUORESCENCE OF INTRAMOLECULAR HETEROEXCIMER SYSTEM AND ITS USE FOR INVESTIGATING POLARITY OF MICROSCOPIC ENVIRONMENT
Authors: Kano Koji , Goto Hideyuki , Ogawa Teiichiro 
Published: July 2006

Abstract
Intramolecular heteroexcimer emission from pyrene-(CH2)3-N,N-dimethylaniline was very sensitive toward solvent polarity and was used for estimating the microscopic polarity of micelles, liposomes, and microemulsions. Liposomes show polarity change as the phase transitions.