bluuebunny/crossref_metadata_2025_split huggingface dataset:
CATALYTIC ACTIVITY OF ALKALINE EARTH METAL OXIDES FOR ISOMERIZATION OF 1-N-PYRROLIDINO-PROP-2-ENE TO 1-N-PYRROLIDINO-PROP-1-ENE
Authors: Satoh Akiko , Tanabe Kozo , Hattori Hideshi 
Published: July 2006

Abstract
Isomerization of 1-N-pyrrolidino-prop-2-ene to 1-N-pyrrolidino-prop-1-ene was carried out at 40°C over alkaline earth metal oxides. MgO and CaO exhibited high activity and selectivity, while SrO and BaO degradated their activities during the reaction.
ABNORMALITY OF THE ACTIVATION ENTROPY OF THE ROTATION OF A SPIN PROBE IN A SDS MICELLE
Authors: Yoshioka Hisashi 
Published: July 2006

Abstract
The ESR spectra of a spin probe, 2-(14-carboxytetradecyl)-2-ethyl-4,4-dimethyl-3-Oxazolidinyloxyl (16NS), dissolved in a SDS micelle were measured at various temperatures. The rotational correlation time was analysed by the theory of absolute reaction rate. The activation entropy of the rotation of the probe in the micelle was abnormally small compared with that in water, though the activation enthalpies were nearly equal in two cases.
THE ISOLATION OF OPTICALLY ACTIVE COMPLEX OF LITHIUM CIS-DIAMMINEDICARBONATOCOBALTATE(III)
Authors: Muramoto Satoru , Shibata Muraji 
Published: July 2006

Abstract
From an aqueous solution of Li(±)[Co(CO3)2(NH3)2] in the presence of (−)589[Co(ox)(en)2](C2H3O2), Li(−)589[Co(CO3)2(NH3)2] has been isolated with a ca. 70% yield. The CD spectrum of the complex has been measured.
EMISSIONLESS DIFFUSE REFLECTANCE IR SPECTROSCOPY AT HIGH TEMPERATURE
Authors: Hattori Tadashi , Niwa Miki , Takahashi Mamoru , Murakami Yuichi 
Published: July 2006

Abstract
New diffuse reflectance spectrometer in the infrared region was made to eliminate the emission spectrum, and emissionless spectra of powder CaCO3 were measured in the temperature range from room temperature to 450°C.
SOLVOLYSIS OF BUTATRIENYL HALIDES: EVIDENCE OF AN AMBIDENT VINYL CATION
Authors: Kobayashi Shinjiro , Sonoda Takaaki , Taniguchi Hiroshi 
Published: July 2006

Abstract
The reactions of butatrienyl halides 4 and 5 in aqueous ethanol exclusively gave bis(benzofuranyl)acetylene 6. The first-order kinetics, the leaving group effect, kBr⁄kCl=52, and the Grunwald–Winstein’s m value of ca. 0.5 show that 4 and 5 are solvolyzed by an SN1 mechanism. The intermediate carbenium ion 7 is a new type of ambident vinyl cations.
REVERSE DI-π-METHANE REARRANGEMENT. MINOR PRODUCTS OF PHOTOLYSIS OF 3-METHYL-3-PHENYL-2(3H)-OXEPINONE
Authors: Sato Kazuhiro , Hagiwara Hisahiro , Uda Hisashi 
Published: July 2006

Abstract
The structures of two minor products from the sensitized photolysis of 3-methyl-3-phenyl-2(3H)-oxepinone have been confirmed to be 3-methyl-5-phenyl-2(5H)-oxepinone and 4-methyl-1-phenyl-2-oxabicyclo[3.2.0]hept-6-en-3-one, respectively. Both of them are shown to be produced, on direct photolysis, from the major photoproduct, 4-methyl-7-phenyl-2-oxabicyclo[4.1.0]hept-4-en-3-one, through the formal reverse di-π-methane rearrangement.
PREPARATION AND REACTIONS OF DIPHENYL PHOSPHITE
Authors: Yamazaki Noboru , Iguchi Tadao , Higashi Fukuji 
Published: July 2006

Abstract
Diphenyl phosphite was prepared by direct esterification of monophenyl phosphite with phenol by using catalysts for esterification of carboxylic acids. Triphenyl phosphite, though could not be obtained by the direct esterification, was obtained from diphenyl phosphite through disproportionation by tertiary amines.
NUCLEOPHILIC SUBSTITUTION REACTION VIA ONE ELECTRON TRANSFER PROCESSES. II A NEW SYNTHETIC METHOD FOR THE PREPARATION OF α,β-UNSATURATED ESTERS AND KETONES
Authors: Ono Noboru , Tamura Rui , Hayami Jun-ichi , Kaji Aritsune 
Published: July 2006

Abstract
An efficient one-pot synthesis of α,β-unsaturated esters and ketones consisting of the coupling reaction of α-chloronitroalkanes with the anions of diethyl α-alkylmalonates or ethyl α-alkylacetoacetates followed by deethoxycarbonylation and concomitant elimination of the nitro group is described.
ABSORPTION OF NITROGEN OXIDES WITH AMMONIUM SALTS
Authors: Osa Tetsuo , Fujieda Shigeaki , Abe Yasuhiko , Ohkatsu Yasukazu 
Published: July 2006

Abstract
Absorptions of an equimolar mixture of NO and NO2 in an aqueous solution of ammonium salts and with a cation-exchange resin substituted by ammonium ion were investigated by a flow method. Ammonium salts such as phosphate, benzoate, and oxalate were found effective for the removal of nitrogen oxides. Effects of temperature and time of contact were examined.
REACTION OF PENTACYANOCOBALTATE(II) WITH THALIUM(I) CHLORIDE
Authors: Hisamatsu Yoshiharu , Iguchi Masaakira 
Published: July 2006

Abstract
Hydrogen uptake of a solution containing pentacyanocobaltate(II) ions was found to be inhibited by Tl(I) ions. It was confirmed by a rapid-scan spectroscopic method that pentacyanocobaltate(II) ions react with Tl(I) ions in an aqueous solution to give the dimeric complex, [(CN)5CoTlCo(CN)5]5−. The dimeric complex containing Co-Tl-Co linkage was successfully isolated as a solid state.
A FACILE RING CONTRACTION OF WIDDROL INVOLVING PHOTOLYSIS OF THE NITRITE ESTER
Authors: Takahashi Hajime , Ito Masaaki , Suginome Hiroshi 
Published: July 2006

Abstract
A facile three-step ring contraction of sesquiterpene widdrol (1) is described. The steps involve the first known example of the photoreaction of a 7-membered cyclic homoallyl alcohol nitrite to afford four isomeric α,β-unsaturated oximes (3), (4), (5) and (6).
REACTION OF β-KETOSULFOXIDES WITH ALKYL GRIGNARD REAGENTS IN TETRAHYDROFURAN
Authors: Nokami Junzo , Kunieda Norio , Kinoshita Masayoshi 
Published: July 2006

Abstract
The reaction of (+)-(R)-α(p-tolylsulfinyl)acetophenone(1) with alkyl Grignard reagents in tetrahydrofuran is described. When 1 was treated with 2 equiv of ethylmagnesium iodide in tetrahydrofuran at 0°C, (−)-ethyl p-tolyl sulfoxide and α(ethylsulfinyl)acetophenone were obtained.
THE OXIDATION OF N,N-DIALKYLANILINES BY PALLADIUM(II) ACETATE
Authors: Sakakibara Tsutomu , Kotobuki Junko , Dogomori Yoko 
Published: July 2006

Abstract
The reaction of N,N-dialkylanilines with palladium(II) acetate gave N,N,N′ ,N′-tetraalkyldiaminodiphenylmethanes (II) as major products. The origin of –CH2– in II seems to be the methyl group of palladium(II) acetate and the compound II may be derived from further oxidation of N,N-dialkyltoluidine primarily formed.
THE CRYSTAL STRUCTURE OF SARABAUITE CaSb10O10S6, A NEW OXIDE SULFIDE MINERAL
Authors: Nakai Izumi , Koto Kichiro , Nagashima Kozo , Morimoto Nobuo 
Published: July 2006

Abstract
Sarabauite is monoclinic: a=25.33(2), b=5.655(3), c=16.88(1) Å and β=117.51(6)° and C2/c. Z=4 and ρc=4.99 g/cm3. The Sb is essentially coordinated by three atoms of oxygen and/or sulfur. SbO3 pyramids of the Sb(1), Sb(2) and Sb(3) share corners forming a slab parallel to (100). The four membered ring consisting of Sb(S,O)3 pyramids of the Sb(4) and Sb(5) links to the slab through the O(2). The Ca is coordinated by eight oxygen atoms in the slab.
t-BUTYLATION AND ISOPROPYLATION OF TOLUENE WITH t-BUTYL AND ISOPROPYL CHLORIDES CATALYZED BY CALCINED IRON SULFATE TREATED WITH HYDROGEN CHLORIDE
Authors: Hino Makoto , Arata Kazushi 
Published: July 2006

Abstract
The title reaction was carried out at room temperature over catalysts prepared by calcining FeSO4, Fe2O3 and Fe(OH)3 in air at various temperatures, followed by treating with HCl. The FeSO4 catalyst heat-treated at 700°C showed surprisingly high activity and selectivity, whereas other catalysts were almost inactive.
AUTOXIDATION OF 4H-5-OXAZOLONE
Authors: Tajima Kiyohiko 
Published: July 2006

Abstract
α-Methoxy-N-(phenylacetyl)phenylglycine methyl ester was obtained in 37% yield by the treatment of N-(phenylacetyl)phenylglycine with dicyclohexylcarbodiimide in methanol under an oxygen atmosphere. The mechanism and the generality of this oxidative alkoxylation are discussed.
THE IMPORTANCE OF GENERAL ACID CATALYSIS IN THE DIHYDRONICOTINAMIDE REDUCTION OF CARBONYL SUBSTRATES
Authors: Shinkai Seiji , Kunitake Toyoki 
Published: July 2006

Abstract
The reduction of hexachloroacetone by 1-benzyl-1,4-dihydronicotinamide in absolute ethanol and acetonitrile is general acid catalyzed. This mechanism is important in connection with the function of some NADH dependent enzymes in which the reaction can be aided by a general acid catalysis.
APPLICATION OF THE PFEIFFER EFFECT TO PARTIAL RESOLUTION OF TRIS(ACETYLACETONATO)COBALT(III)
Authors: Miyoshi Katsuhiko , Wada Yoshiaki , Yoneda Hayami 
Published: July 2006

Abstract
Partial resolution of neutral [Co(acac)3] was performed by extracting into 1,2-dichloroethane the complex formed when racemic Li[Co(acac)3] was mixed with Δ- or Λ-[Co(phen)3]Cl3 in water. This system is the first Pfeiffer-active system in which a dissymmetric metal complex serves as a chiral environment compound.
ISOLATION OF TWO NEW ENT-KAURANE CLASS DITERPENOIDS FROM PORELLA DENSIFOLIA (LIVERWORT)
Authors: Matsuo Akihiko , Uto Seiryû , Nakayama Mitsuru , Hayashi Shûichi 
Published: July 2006

Abstract
Two kinds of new diterpene keto-alcohols were isolated from Porella densifolia. The structures including absolute configurations were elucidated to be ent-18-hydroxykauren-15-one(I) and (16R)-ent-18-hydroxykauran-15-one(II) in combination of chemical reaction and spectroscopic analysis.
EVIDENCE FOR A BOND RUPTURE MECHANISM IN TRANS-TO-CIS ISOMERIZATION OF [CrCl2bn2]Cl·HCl·2H2O IN SOLID-PHASE
Authors: Tsuchiya Ryokichi , Yoshikuni Tadatsugu , Nakagawa Shigeo , Uehara Akira , Kyuno Eishin 
Published: July 2006

Abstract
The trans-to-cis isomerization of [CrCl2bn2]Cl·HCl·2H2O (bn = d,l-2,3-diaminobutane) was investigated in the solid-phase. A bond rupture mechanism was proposed for the isomerization from the fact that the trans-complex (green) is converted into cis-[CrCl2bn2]Cl (violet) via the intermediate [CrCl3bn2] (bluish violet) in which one of d,l-2,3-di:aminobutanes is coordinated as unidentate toward chromium(III) ion.
SYNTHESIS OF α,β-UNSATURATED ALDEHYDES BY MEANS OF 3-METHOXY-1-PHENYLTHIO-1-PROPENE
Authors: Wada Makoto , Nakamura Hideo , Taguchi Takeo , Takei Hisashi 
Published: July 2006

Abstract
3-Methoxy-1-phenylthio-1-propene (3), obtained by the reaction of 1-phenylthio-2,3-epoxypropane (1) with sodium hydride in tetrahydrofuran (THF) and successive treatment with methyl iodide, was lithiated with lithium diisopropylamide at −78°C. The lithio derivative reacted with alkyl halides regioselectively at the α-position of sulfur atom, and hydrolysis of the products at room temperature in the presence of mercuric chloride afforded the corresponding α,β-unsaturated aldehydes in good yields.
ORGANO-MODIFIED CARBON ELECTRODES. I. STUDIES OF MODIFIED LAYER VIA AMIDE BONDS BY CAPACITANCE MEASUREMENTS AND ESCA
Authors: Fujihira Masamichi , Tamura Akiko , Osa Tetsuo 
Published: July 2006

Abstract
The electrochemical characteristics of chemically modified glassy carbon electrodes via amide bonds have been correlated with the results of surface analysis by X-ray photoelectron spectroscopy (ESCA). The double layer capacitance measurements were proved to be useful to determine the extent of surface modification as well as ESCA analysis.
REACTION OF trans-Mo(N2)2(Ph2PCH2CH2PPh2)2 WITH HYDROAROMATIC COMPOUNDS, ALCOHOLS, AND METHYL FORMATE; THE FORMATION OF CARBONYL AND HYDRIDE COMPLEXES OF MOLYBDENUM
Authors: Tatsumi Takashi , Tominaga Hiroo , Hidai Masanobu , Uchida Yasuzo 
Published: July 2006

Abstract
Reaction of trans-Mo(N2)2(DPE)2(DPE=Ph2PCH2CH2PPh2) with tetrahydrofuran, MeOH, EtOH, and HCOOMe gives the molybdenum carbonyls, trans-Mo(CO)(N2)(DPE)2 and cis-Mo(CO)2(DPE)2; in the case of tetrahydrofuran the hydride MoH4(DPE)2 is also formed. The hydride is selectively obtained from pyrrolidine, indoline, and 2-propanol.
A REACTION OF SELENONIUM YLIDES WITH EPISULFIDES
Authors: Tamagaki Seizo , Tamura Katsuyuki , Kozuka Seizi 
Published: July 2006

Abstract
Dialkylselenonium cyano(methoxycarbonyl)methylides reacted catalytically in CHCl3 at room temperature with aliphatic episulfides to give mainly the reduced selenides and dicyanofumarate.
FORMATION OF THE BILAYER MEMBRANE FROM A SERIES OF QUATERNARY AMMONIUM SALTS
Authors: Kunitake Toyoki , Okahata Yoshio , Tamaki Kiyoshi , Kumamaru Fumiko , Takayanagi Motowo 
Published: July 2006

Abstract
A series of dimethylammonium salts having two long alkyl groups were shown by electron microscopy to form in water lamellar and vesicle structures which are composed of the bilayer structure similar to that of biomembranes.
COMPELLED AZEPINE RING FORMATION IN THERMAL RING EXPANSION OF 2H-AZIRINE
Authors: Isomura Kazuaki , Taguchi Hiroshi , Tanaka Tatsuyoshi , Taniguchi Hiroshi 
Published: July 2006

Abstract
Thermolyses of three β-(benzofuran-2-yl)vinyl azides, 1a, 1b, and 1c, in which the benzofuran ring bears a hydrogen, a methyl, and a phenyl group at the 3-position, gave a benzofuropyrrole 2, a benzofuropyridine 3, and a benzofurobenzazepine 4, respectively. Photolyses of these azides gave the corresponding 2H-azirines, 7a, 7b and 7c, which on heating afforded the same heterocyclic compounds as the products of the thermolyses of the vinyl azides.
NEW SYNTHETIC REACTIONS BASED ON 1-METHYL-2-FLUOROPYRIDINIUM SALTS. STEREOSPECIFIC PREPARATION OF THIOALCOHOLS FROM ALCOHOLS
Authors: Hojo Ko , Yoshino Hiroshi , Mukaiyama Teruaki 
Published: July 2006

Abstract
Treatment of various alcohols with 1-methyl-2-fluoropyridinium salt and sodium N,N-dimethyldithiocarbamate afforded alkykl N,N-dimethyldithiocarbamates of inverted configuration. The latter compounds were converted to thioalcohols with retention.
SPIN-LABELED METACHROMATIC DYES. III. INTERACTION OF SPIN-LABELED PROFLAVINE WITH NATIVE AND HEAT-DENATURED DNA
Authors: Yamaoka Kiwamu , Noji Sumihare 
Published: July 2006

Abstract
The binding of spin-labeled Proflavine to native and denatured DNA was evidenced by the line broadening and anisotropic pattern in ESR and by the absorption changes and extrinsic Cotton effects in optical spectra. The tilt angle and rotational diffusion constants of the bound spin-label were obtained by the simulation of ESR spectra.
THE VIBRATIONAL SPECTRA OF α, β, AND γ-PICOLINES ADSORBED ON AEROSIL SILICA
Authors: Hirokawa Takeshi , Ohno Keiichi , Kimura Tomoyuki , Murata Hiromu 
Published: July 2006

Abstract
The vibrational spectra of α, β, and γ-picolines adsorbed on aerosil silica were measured in the regions of 2800–4000 cm−1, 1300–1650 cm−1, and 950–1100 cm−1. At high coverage, two kinds of the surface species were found, which were assignable to the liquid-like species and the hydrogen-bonded species persisting at low coverage.
BIOSYNTHETIC STUDIES OF ALOENIN. THE INTERMEDIATE AND THE BIOSYNTHETIC SEQUENCE INVOLVED IN THE BIOSYNTHESIS
Authors: Hirata Toshifumi , Koshitani Osamu , Suga Takayuki 
Published: July 2006

Abstract
Incorporation of the labels from 3H/14C-labeled 4-methoxy-6-(2′,4′-dihydroxy-6′-methyl)phenyl-2-pyrone (II) and 3,5-dioxo-5-(2′-o-glucopyranosyl-4′-hydroxy-6′-methyl)phenylpentanoic acid (III) into aloenin (I) in the Aloe plants demonstrated that the biosynthetic intermediate of aloenin is the pyrone (II) and not the diketo acid (III), and the formation of the aglycone (II) by cyclization of a biological polyketide (IV) and creation of the methoxyl group through methylation is followed by glucosylation which results in the formation of aloenin.
PREPARATION OF ESTERS AND AMIDES USING HEXAFLUORO-1,2-EPOXYPROPANE-TRIETHYLAMINE SYSTEM
Authors: Ishikawa Nobuo , Sasaki Shigekuni 
Published: July 2006

Abstract
Hexafluoro-1,2-epoxypropane-triethylamine system was found to be a useful condensing agent for the preparation of esters, thioesters, and amides.
VIBRATIONAL STRUCTURE OF THE LIGAND FIELD ABSORPTION BAND OF SOME Co (III) COMPLEXES
Authors: Fukuda Kunimasa , Urushiyama Akio 
Published: July 2006

Abstract
The vibrational structures of the ligand field absorption bands of the Co (III) complexes, [Co(NH3)6]3+, [CoF(NH3)5]2+, [CoCl(NH3)5]2+, trans-[CoCl2(NH3)4]+, and trans-[CoBr2(NH3)4]+were studied at 4.2 K. It was found that the vibrational structures observed in the present studies consist of the uniquantal progressions of the totally symmetric CoN stretching vibrations of the complexes.
SOLVENT EFFECTS ON NMR SPECTRA OF 8-HYDROXYQUINOLINE DILUTION COEFFICIENTS
Authors: Katayama Seizi , Akahori Yukio 
Published: July 2006

Abstract
The dilution coefficients (Δδ/Δc)solv. are introduced from the dilution shifts of PMR spectra of 8-hydroxyquinoline in various solvents, and correlations between these values are examined. There are good correlations between the dilution coefficients of every pair of H-2, H-3, H-4, H-6, H-7, but not between the dilution coefficients of H-5 and the other protons.
ARYLAZO GROUP EXCHANGE IN THE REACTION OF 5-ARYLAZOTROPOLONES WITH ARYLDIAZONIUM SALTS
Authors: Ide Tsutomu , Imafuku Kimiaki , Matsumura Hisashi 
Published: July 2006

Abstract
5-Phenylazo-, 5-(p-tolylazo)-, and 5-(p-methoxyphenylazo)tropolones reacted with aryldiazonium salts to give products which derived from arylazo group exchange at the C-5 position of the tropolone ring.
REACTIONS OF NAD+-MODEL COMPOUNDS WITH BASE. THE REVISED STRUCTURE OF DITTMER’S TRIMER
Authors: Ohnishi Yutaka , Minato Hiroshi , Okuma Kentaro , Kobayashi Michio 
Published: July 2006

Abstract
The structure of the cyclic trimer obtained by the reaction of N-benzylnicotinamide cation with base was established. A plausible mechanism involves the removal of the amide hydrogen with base, the attack of the amide anion at C-4 of another pyridinium ion, and the formation of a 12-membered ring.
A NEW EVIDENCE FOR ACID-CATALYTIC ACTION OF SINGLET EXCITED 2-NAPHTHOL ON THE GROUND STATE REACTION
Authors: Hisaoka Motoyuki , Tokumaru Katsumi 
Published: July 2006

Abstract
A new evidence to demonstrate acid-catalytic action of excited 2-naphthol on the ground state reaction is presented for the production of acetals from irradiation of alkanals in alcohols in the presence of 2-naphthol.
STEREOCHEMISTRY OF THE HYDROGENATION OF 5α- AND 5β-CHOLESTAN-3-ONES OVER PLATINUM METALS. AN UNUSUAL ASPECT WITH PALLADIUM AND PLATINUM
Authors: Nishimura Shigeo , Ishige Masayoshi , Shiota Michio 
Published: July 2006

Abstract
Hydrogenation of 5α-cholestan-3-one with palladium gives an equatorial 3β-o1 while hydrogenation of 5β-cholestan-3-one under the same condition affords an axial 3β-o1 with high stereoselectivities in alcohols and tetrahydrofuran. This unusual hydrogenation stereochemistry is also seen with platinum in alcohols, but not with platinum in tetrahydrofuran nor with ruthenium, osmium and iridium in t-butyl alcohol. With rhodium in ethanol, the both ketones afford the axial alcohols in high selectivities.
REACTION OF POTASSIUM SUPEROXIDE WITH PHENOXY RADICALS. ON THE MECHANISM OF BASE-CATALYZED OXYGENATION OF PHENOLS
Authors: Nishinaga Akira , Shimizu Tadashi , Matsuura Teruo 
Published: July 2006

Abstract
Superoxide ion (O2−) hes been found not to couple with 2,6-di-tert-butylphenoxy radicals but to reduce the radicals giving rise to the corresponding phenolates. Molecular oxygen attacks predominantly the para position of the phenoxy radicals and the regioselectivity is not affected by the nature of the reaction medium. A new mechanism involving an ionic process for the base-catalyzed oxygenation of 2,6-di-tert-butylphenols is proposed.
DECARBOXYLATION REACTION VI. REACTION OF α-ALKYLIDENEMALONONITRILES WITH TRICHLOROACETIC ACID. A NEW 1,1-DICHLOROCYCLOPROPANE FORMATION THROUGH β-TRICHLOROMETHYLATION
Authors: Nanjo Katsumi , Suzuki Kunio , Sekiya Minoru 
Published: July 2006

Abstract
It has been found that highly electron-deficient carbon-carbon double bond conjugated, in the main, with two cyano groups undergoes 1,1-dichlorocyclopropane formation by reacting with trichloroacetic acid. This reaction is presumed not to involve dichlorocarbene, but trichloromethylated intermediate.
THE ISOLATION AND STRUCTURE OF C19-OBTUSILACTONE DIMER
Authors: Niwa Masatake , Iguchi Masanobu , Yamamura Shosuke 
Published: July 2006

Abstract
C19-Obtusilactone dimer, a cytotoxic substance, has been isolated from Lindera obtusiloba Blume, and its structure also been elucidated on the basis of its spectral data coupled with chemical evidence.
A NEW METHOD FOR THE SYNTHESIS OF 3-DEOXY SUGARS BY GRIGNARD REACTIONS WITH METHYL 5,6-O-CYCLOHEXYLIDENE-3-O-MESYL-α- AND -β-d-ALLOFURANOSIDE
Authors: Kawana Masajiro , Emoto Sakae 
Published: July 2006

Abstract
The 3-deoxy sugars were easily prepared in good yield by the reaction of t-butylmagnesium bromide with the title compounds. The same reaction with 1-O-benzoyl- or -mesyl-cis-cyciododecane-1,2-diol gave cyclododecanone.
DYE-SENSITIZED PHOTOOXIDATION OF SPIROCYCLIC VINYLCYCLOPROPANES IN THE PRESENCE OF SODIUM AZIDE
Authors: Hatsui Toshihide , Takeshita Hitoshi 
Published: July 2006

Abstract
The effects of azide ion in the sensitized photooxygenation of spirocyclic vinylcyclopropanes, suitable substrates for stereochemical analysis of the mechanism, were investigated. Two types of products, azidoalcohols and an epoxide, obtained were different from the genuin products of singlet oxygen oxidation : The formers were shown to be formed by an initial attack of azide radical non-selectively to the both double bonds, and the latter, being formed by no skeletal rearrangement, was shown to be oxygenated at the norbornene moiety.
PYROLYSIS OF 1,2-ETHANEDITHIOL: MICROWAVE SPECTROSCOPIC DETECTION OF VINYL MERCAPTAN, CH2=CHSH
Authors: Tanimoto Mitsutoshi , Saito Shuji 
Published: July 2006

Abstract
Vinyl mercaptan was identified in the thermal decomposition (600–950°C) products of 1,2-ethanedithiol and thiirane. A microwave spectroscopic study of CH2=CHSH and CH2=CHSD showed that the molecule is planar with the total dipole moment of 0.896±0.007 D and has the syn-form.
THE REACTION OF POLYNITROHALOBENZENES WITH CARBOXYLIC ACIDS. USE OF 2-FLUORO-1,3,5-TRINITROBENZENE (FTNB) AS A NEW CONDENSING REAGENT
Authors: Kotake Hiroshi , Inomata Katsuhiko , Kinoshita Hideki , Tanabe Kumiko , Miyano Osamu 
Published: July 2006

Abstract
The reaction of polynitrohalobenzenes with carboxylic acids in the presence of a base was examined, and it was found that 2-fluoro-1,3,5-trinitrobenzene (FTNB) was the most reactive polynitrohalobenzene. Various carboxanilides were prepared under mild conditions in excellent yields using FTNB as a new condensing reagent.
PREPARATION AND CHARACTERIZATION OF OXO(2,3,17,18-TETRAMETHYL-7,8,12,13-TETRAETHYLCORROLATO)MOLYBDENUM(V)
Authors: Murakami Yukito , Matsuda Yoshihisa , Yamada Sunao 
Published: July 2006

Abstract
Oxo(2,3,17,18-tetramethyl-7,8,12,13-tetraethylcorrolato)molybdenum(V) was prepared from the corresponding corrole by the reaction with either molybdenum pentachloride or molybdenum hexacarbonyl. Spin Hamiltonian parameters were evaluated as g = 1.967, AMo=41.8×10−4 cm−1, and AN=2.3×10−4 cm−1. The results from ESR and ESCA measurements indicate that the molybdenum complex has a compressed tetragonal structure of N4O-coordination.
STEREOSELECTIVITY IN ION-PAIR FORMATION. II. THE ADDITIVITY OF INDUCED CIRCULAR DICHROISMS OF Λ-[Co(en)3]3+ BY THE ROTATIONAL ISOMERS OF l-MALATE ANION
Authors: Taura Toshiaki , Yoneda Hayami 
Published: July 2006

Abstract
The changes in the CD spectrum of Λ-[Co(en)3]3+ have been observed upon the addition of some dicarboxylate anions (maleate, l-malate, and fumarate). The results demonstrated the additivity of circular dichroisms induced by the gauche and trans rotational isomers of the l-malate anion.
DIAZO-COUPLING REACTION OF 5-METHYLTROPOLONE. THE FORMATION OF 3,7-DIARYLAZOTROPOLONES
Authors: Ide Tsutomu , Imafuku Kimiaki , Matsumura Hisashi 
Published: July 2006

Abstract
5-Methyltropolone reacted with aryldiazonium salts to give either 3-arylazo-5-methyltropolones or 3,7-diarylazo-5-methyltropolones according to the electrophilicity of the attacking species.