bluuebunny/crossref_metadata_2025_split huggingface dataset:
STEREOCHEMICAL STUDIES OF THE ELECTROLYTIC REACTIONS OF ORGANIC COMPOUNDS I. ELECTROLYTIC REDUCTIONS OF AROMATIC DIKETONES
Authors: Nonaka Tsutomu , Udagawa Akio , Odo Keijiro 
Published: July 2006

Abstract
The electrolytic reductions of some aromatic diketones were carried out by means of controlled potential electrolysis in various catholytes. Reduction products were intramolecular pinacols (cis and trans cyclic vicinal diols), intermolecular pinacol, and/or hydrol. The formation ratios of the products were strongly dependent on the molecular structure of diketone, the pH of catholyte, and/or the kind of organic co-solvent.
FACILE FLUORINATION OF PHENANTHRENE BY XENON DIFLUORIDE: VERSATILE SUBSTITUTION AND ADDITION, WITHOUT HYDROGEN FLUORIDE INITIATION
Authors: Agranat Israel , Rabinovitz Mordecai , Selig Henry , Lin Chun-Hsu 
Published: July 2006

Abstract
Phenanthrene reacts with xenon difluoride without HF initiation and in an open system to give fluorine substitution and addition products; 9-fluorophenanthrene is isolated in 33% yield.
PROTON AND CHLORINE SPIN-LATTICE RELAXATION IN α-NH4HgCl3
Authors: Sagisawa Kenshô , Kiriyama Hideko , Kiriyama Ryôiti 
Published: July 2006

Abstract
The spin-lattice relaxation times of 1H and 35Cl as well as the 35Cl NQR frequencies in α-NH4HgCl3 are reported. The proton T1 data are explained in terms of C3 reorientation and S4 flip of NH4+ ions. The latter mode is also largely responsible for the 35Cl quadrupole relaxation rate. A marked change in the proton T1 at 55 K indicates a phase transition, ascribable to the ordering of the NH4+ ions.
SPECTRAL SENSITIZATION OF PHOTO-ELECTROCHEMICAL REACTIONS OF CADMIUM SULFIDE SINGLE CRYSTAL ELECTRODE
Authors: Fujishima Akira , Watanabe Tadashi , Tatsuoki Osamu , Honda Kenichi 
Published: July 2006

Abstract
The spectral sensitization of photo-electrochemical reactions of cadmium sulfide single crystal electrode with rhodamine B and quinocyanine has been investigated. The photosensitive region of the electrode could be extended to longer wavelength by addition of each dye into the electrolyte solution.
EM, ED AND EMX STUDIES ON MOLYBDENUM OXIDE USED AS A CATALYST
Authors: Sotani Noriyuki , Hasegawa Masatomo 
Published: July 2006

Abstract
The needles appeared at the end of the crystal of molybdenum oxide used as a catalyst for hydrodesulfurization for 10 min at 350°C. They gradually grew and apparently stopped to grow after the 40 min reaction. The needles were produced in the presence of thiophene. They gave the ED pattern due to MoO2. Also the catalyst was sulfurized uniformly all over the surface.
OPTICAL ACTIVATION METHOD FOR RACEMIC α-SUBSTITUTED CARBONYL COMPOUNDS
Authors: Matsushita Hajime , Noguchi Masao , Yoshikawa Sadao 
Published: July 2006

Abstract
The optical activation of racemic α-substituted carbonyl compounds by the hydrolysis of enamines with optically active α-pipecoline was reported. Solvent effect on the optical activation was also examined.
TEMPERATURE DEPENDENCE OF THE 35Cl NQR FREQUENCIES OF SOME TRICHLOROACETATES
Authors: Hashimoto Masao 
Published: July 2006

Abstract
The 35Cl NQR frequencies of magnesium trichloroacetate hexahydrate, sodium trichloroacetate trihydrate, and anhydrous sodium trichloroacetate were measured in the temperature region of 77–230 K. It was found that each of the two hydrated salts contains two thermally different non-equivalent trichloromethyl groups. The non-equivalence may be due to some intermolecular interaction.
REACTIONS OF ALKYLMAGNESIUM HALIDES AND ALKYLLITHIUMS WITH SELENIUM DIOXIDE. A NEW ROUTE TO DIALKYL SELENIDE
Authors: Arase Akira , Masuda Yuzuru 
Published: July 2006

Abstract
Alkylmagnesium halides and alkyllithiums reacted with selenium dioxide, suspended in tetrahydrofuran, to afford dialkyl selenides in 30–62 % yields.
A CONVENIENT METHOD FOR THE PREPARATION OF δ-HYDROXY-β-KETOESTERS AND 6-ALKYL-5,6-DIHYDRO-4-HYDROXY-2-PYRONES. APPLICATION TO THE SYNTHESES OF KAWAIN AND DIHYDROKAWAIN
Authors: Izawa Toshio , Mukaiyama Teruaki 
Published: July 2006

Abstract
δ-Hydroxy-β-ketoesters[3] and 6-alkyl-5, 6-dihydro–4-hydroxy-2-pyrones[4] were obtained in good yields by TiCl4-promoted addition of diketene[1] to various aldehydes[2], followed by the treatment with alcohol. The hydroxyketoesters[3] were easily lactonized to the corresponding lactones[4] in excellent yields by the hydrolysis with aqueous alkali, followed by acidification. The present method was successfully applied to the syntheses of dihydrokawain[7c] and kawain[7d].
THE FORMATION OF SILYLRHODIUM COMPLEXES BY OXIDATIVE ADDITION OF HYDROSILANES TO HYDRIDOTETRAKIS(TRIPHENYLPHOSPHINE) RHODIUM(I). A HOMOGENEOUS CATALYST FOR HYDROSILATION
Authors: Kono Hiromichi , Wakao Naofumi , Ojima Iwao , Nagai Yoichiro 
Published: July 2006

Abstract
Hydrosilanes react with RhH(PPh3)4 to give RhH2(SiR3)(PPh3)4−n (n=2 or 3) where R3= PhMe2, Ph(MeO)2, (MeO)3, (EtO)3, and Et2H. These complexes were characterized by ir, nmr and elemental analyses. RhH(PPh3)4 was found to be an effective catalyst for hydrosilation of l-alkene, styrene, allyl chloride, isoprene, 2,5-dihydrofuran, acrylonitrile and vinyl acetate.
REACTIONS OF A STABLE FREE NITROGEN-CENTERED RADICAL, 3,4-DIHYDRO-2,4,6-TRIPHENYL-1,2,4,5-TETRAZIN-1(2H)-YL, WITH GRIGNARD REAGENTS
Authors: Miura Yozo , Morimoto Yuzo , Kinoshita Masayoshi 
Published: July 2006

Abstract
Reactions of 3,4-dihydro-2,4,6-triphenyl-1,2,4,5-tetrazin-1(2H)-yl with Grignard reagents have been investigated, and these reactions have been found to proceed through a bimolecular homolytic substitution process.
PHOTOREACTIONS OF SILYL ENOL ETHERS OF α-TETRALONE AND α-INDANONE WITH ELECTRON DEFICIENT OLEFINS; THE PHOTO-MICHAEL REACTION
Authors: Mizuno Kazuhiko , Okamoto Hisanori , Pac Chyongjin , Sakurai Hiroshi , Murai Shinji , Sonoda Noboru 
Published: July 2006

Abstract
Michler’s ketone-sensitized photoreactions of silyl enol ethers of α-tetralone and α-indanone with electron deficient olefins gave photocycloadducts, hydrolyses of which lead to the Michael adducts of the corresponding ketones in good yields, under very mild conditions.
BIOSYNTHESIS OF ISOPRENOID FROM AMINO ACID IN HIGHER PLANT. INCORPORATION OF l-LEUCINE AND l-VALINE INTO GERANIOL AND CITRONELLOL
Authors: Suga Takayuki , Hirata Toshifumi , Tange Keiji 
Published: July 2006

Abstract
l-[U–14C]Leucine and l-[U–14C]valine were incorporated into geraniol (II) and citronellol (III) in Pelargonium roseum Bourbon. The labeling pattern demonstrated that in the higher plant some of the 3,3-dimethylallyl pyrophosphates originate from leucine and valine, not via the mevalonoid pathway, but by some alternate route.
CATALYTIC VAPOR PHASE HYDROFORELATION OF OLEFINS OVER POLYMER-IMMOBILIZED RHODIUM COMPLEXES
Authors: Arai Hiromichi , Kaneko Takashi , Kunugi Taiseki 
Published: July 2006

Abstract
The rhodium complex (–RhCl(CO)2) coordinatively bonded to the phosphine group on polystyrene coated over silica gel is an efficient catalyst for hydroformylation of olefins at 100°C at 1 atm in vapor phase. The rate expression of propionaldehyde formation was R = k[H2][C2H4][CO]−0.5.
OXYGENATION OF 3-SUBSTITUTED INDOLES CATALYZED BY Co(II)-SCHIFF′S BASE COMPLEXES. A MODEL CATALYTIC OXYGENATION FOR TRYPTOPHAN 2,3-DIOXYGENASE
Authors: Nishinaga Akira 
Published: July 2006

Abstract
Bis(salicylidene)ethylenediaminatocobalt(II) catalyzes the oxygenation of 3-substituted indoles related to tryptophan in methanol giving rise to oxidative cleavage of the heterocyclic ring of the indoles selectively to give the corresponding o-formylaminoacetophenone derivatives. This provides a nonenzymic model for the reaction of tryptophan 2,3-dioxygenase. Oxidizability of the substrates is correlated with their donor ability.
MICROWAVE SPECTROSCOPIC STUDY ON THE MECHANISM OF BASE-CATALYZED PROPYLENE H-D EXCHANGE REACTION OVER POTASSIUM tert-BUTOXIDE AND DMSO-d6 SYSTEM
Authors: Uchida Kiyoshi , Naito Shuichi , Onishi Takaharu , Tamaru Kenzi 
Published: July 2006

Abstract
The mechanism of hydrogen exchange reaction between propylene and deuterated dimethyl sulfoxide (DMSO-d6) in the presence of potassium t-butoxide (t-BuOK) was studied by means of microwave spectroscopy, which leads to a conclusion that the reaction proceeds via the π-allyl intermediate.
THERMAL REARRANGEMENT OF 1-ACYL-2-ALKYL-6-HYDROXYFULVENES TO 1-ACYL-3-ALKYL-6-HYDROXYFULVENES
Authors: Kasai Masaji , Funamizu Makoto , Fujita Kenichi , Kitahara Yoshio 
Published: July 2006

Abstract
1-Acyl-2-alkyl-6-hydroxyfulvenes have been found to rearrange to 1-acyl-3-alkyl-6-hydroxyfulvenes on heating. Kinetics and other mechanistic studies including 13C-labeling experiment indicate that the acyl group migrates intramolecularly. The acyl migration may proceed by two consecutive [1,5] acyl shifts via a 5,5-diacylcyclopentadiene toward the less crowded 3-alkyl isomer.
CYCLIZATION OF POLYENES XIII. INTRAMOLECULAR ACYLATION OF GERANIC AND FARNESIC ACID CHLORIDES
Authors: Kobayashi Toyohiko , Kumazawa Satoru , Kato Tadahiro , Kitahara Yoshio 
Published: July 2006

Abstract
Intramolecular acylation reaction took place easily when geranic and farnesic acid chlorides (IV and VII) were treated with AlCl3 or SnCl4, affording the cyclohexenone derivatives in fairly good yields. These as well as our previous results promise the usefulness of the acylation reaction of polyenes for the construction of some kinds of terpenoid skeleton.
REACTIONS OF SULFINATES AND SULFOXYLATES WITH METHYL HALOSULFONATES AND TRIFLUOROMETHANESULFONATE. EVIDENCE FOR THE FORMATION OF DIALKOXYSULFONIUM IONS
Authors: Minato Hiroshi , Yamaguchi Kei , Kobayashi Michio 
Published: July 2006

Abstract
Dialkoxysulfonium ions were prepared by methylation of sulfinates and sulfoxylates.
STRUCTURE AND SYNTHESIS OF ACTIVE COMPONENT FROM A MARINE ALGA, SARGASSUM TORTILE, WHICH INDUCES THE SETTLING OF SWIMMING LARVAE OF CORYNE UCHIDAI
Authors: Kato Tadahiro , Kumanireng Antonius S , Ichinose Isao , Kitahara Yoshio , Kakinuma Yoshiko , Kato Yoshiaki 
Published: July 2006

Abstract
Based on the observation that the juice of yoremoku induces the settling of swimming larvae of Coryne Uchidai, we searched the active component in the alga by means of bioassay using the swimming larvae and elucidated the structure of the active principle to be 1 and 2. The structure was unequivocally confirmed by synthesis and (±)-epoxide (2) exhibited the clear activity toward the settling of swimming larvae.
SYNTHESIS AND REACTION OF NEW TYPE I–N YLIDE, N-TOSYLIMINOIODINANE
Authors: Yamada Yorinobu , Yamamoto Tamotsu , Okawara Makoto 
Published: July 2006

Abstract
(Diacetoxyiodo)arene reacts with p-toluenesulfonamide in the presence of base to give the new type I–N ylide, N-tosyliminoaryliodinane. In the decomposition of this ylide, the nitrene intermediate is proposed to be formed and react with nucleophiles to afford the imine compounds.
NMR STUDY ON THE COMPETITIVE INCLUSION OF SUBSTRATE AND DETERGENT INTO CYCLOHEPTAAMYLOSE CAVITY
Authors: Sunamoto Junzo , Okamoto Hiroshi , Taira Kazunari , Murakami Yukito 
Published: July 2006

Abstract
The hydrolyses of 4-nitrophenyl and 2,4-dinitrophenyl sulfates have been accelerated in the presence of a functional detergent such as N,N-dimethylhexadecylamine or N,N-dimethyl-N-hexadecyl-N-(4-imidazolium)methylammonium dichloride even at concentrations below cmc, as well as in the presence of cycloheptaamylose (β-CD). Nevertheless, the presence of both β-CD and functional detergent resulted in the diminished rate of hydrolysis of the esters relative to the individual catalysis. Through NMR study on the inclusion behavior of the detergent into the β-CD cavity, the inhibiting effect of β-CD in the hydrolysis of aryl sulfates catalyzed by the functional detergents was ascribed to the competitive inclusion of the substrate and detergent molecules into β-CD.
CHARGE TRANSFER COMPLEX OF POLY-γ-(β-N-CARBAZOLYLETHYL)-d-GLUTAMATE
Authors: Nomori Hiroyuki , Enomoto Takamichi , Hatano Masahiro 
Published: July 2006

Abstract
Two charge transfer absorption bands at 485 nm and 620 nm were observed in the system of poly-γ-(β-N-carbazolylethyl)-d-glutamate-tetranitrofluorenone dissolved in ethylene dichloride. Thermodynamic analysis and circular dichroism measurements revealed that ordering of the side chain carbazolyl chromophore occurred resulting in reordering of the α-helix main chain which had been disturbed by steric hindrance between the side chains.
A NEW TYPE OF PHOTOSENSITIZED REACTION INDUCED BY VISIBLE LIGHT ON THE SOLID SURFACE: THE PHOTOCHEMICAL REACTION OF HETEROCYCLIC N-OXIDE BY GREEN LIGHT IRRADIATION
Authors: Hata Norisuke 
Published: July 2006

Abstract
When the alumina powder dyed with eosin suspended in a benzene solution of isoquinoline- or acridine-N-oxide was illuminated with green light (∼540 nm), there occured reactions originated from the T1 state of isoquinoline N-oxide or from both the S1 and T1 states of acridine N-oxide. The results appear to be accounted for by assuming as a primary act the transfer of an electron from the excited singlet eosin to the alumina conduction band and/or the T–T transfer between the triplet eosin and the N-oxide on the alumina surface.
A NEW ROUTE TO DIALKYL SELENIDE FROM OLEFIN VIA HYDROBORATION
Authors: Arase Akira , Masuda Yuzuru 
Published: July 2006

Abstract
The reaction of trialkylboranes, prepared from olefin via hydroboration, with selenium dioxide was studied. In the aqueous selenium dioxide solution, trialkylboranes give the mixtures of dialkyl selenide and dialkyl diselenide, whereas in the suspension of selenium dioxide in tetrahydrofuran, trialkylboranes give dialkyl selenides selectively under the condition where the reaction time and the amount of selenium dioxide are controlled.
A NOVEL SYNTHESIS OF l-CARVONE FROM l-α-PINENE
Authors: Shono Tatsuya , Nishiguchi Ikuzo , Yokoyama Tsunenori , Nitta Masahiro 
Published: July 2006

Abstract
A novel synthetic method of l-carvone involving the anodic oxidation of the enol acetate of isopinocamphone in the mixed solvent of methylene chloride-acetic acid as a key step was established. The overall yield of l-carvone from l-α-pinene was 34% and the overall optical yield was quantitative.
ORGANIC SYNTHESIS BY MEANS OF METAL COMPLEXES. XV. FACILE OXIDATIVE CONVERSION OF ACID HYDRAZIDES TO ACIDS, ESTERS AND AMIDES WITH OXYGEN ACTIVATED BY COPPER SALTS
Authors: Tsuji Jiro , Hayakawa Shunichi , Takayanagi Hiroshi 
Published: July 2006

Abstract
Acid hydrazides can be converted into acids, esters and amides by oxidation with molecular oxygen activated by copper salts in high yields.
CONCENTRATION DEPOLARIZATION OF PHOSPHORESCENCE AND ENERGY TRANSFER BETWEEN LIKE MOLECULES
Authors: Gondo Yasuhiko , Hirai Masanori , Iwao Tsuyoshi , Kakibaya Takashi , Kuroi Tatsuaki , Nagatomo Hisaaki , Kanda Yoshiya 
Published: July 2006

Abstract
Two new findings are reported on the energy transfer between like molecules in rigid glass at 77 K: The depolarization of the phosphorescence is not mainly caused by the triplet–triplet energy transfer, but essentially by the singlet–singlet transfer. And the concentration where the depolarization starts to take place depends on the individual phosphor compounds.
ISOLATION AND THE STRUCTURE OF EUOLALIN, A NEW SESQUITERPENE POLYESTER, FROM EUONYMUS ALATUS FORMA STRIATUS (THUNB.) MAKINO
Authors: Sugiura Kimio , Shizuri Yoshikazu , Yamada Kiyoyuki , Hirata Yoshimasa 
Published: July 2006

Abstract
A new sesquiterpene polyester of eudesmane type was isolated from Euonymus alatus forma striatus (Thunb.) Makino, and the structure was established to be (1), based on chemical and spectral evidences.
A NOVEL OXIDATIVE ADDITION INVOLVING C–H BOND CLEAVAGE ADJACENT TO A C=C DOUBLE BOND
Authors: Komiya Sanshiro , Yamamoto Akio 
Published: July 2006

Abstract
Dihydridotetrakis (triphenylphosphine)ruthenium(II) reacted with alkyl methacrylate to give hydrido(2-alkoxycarbonylpropenyl)tris(triphenylphosphine) ruthenium(II) , RuH (CH=C)(CH3(COOR))(PPh3)3 and an equimolar amount of alkyl isobutyrate per mole of the dihydride complex. Structure of the resultant complex was proposed from the results of IR and NMR spectroscopy and chemical reactions.
ANOMALOUS RESPONSE OF LIQUID MEMBRANE ELECTRODE BASED ON NEUTRAL CARRIER
Authors: Seto Hideaki , Jyo Akinori , Ishibashi Nobuhiko 
Published: July 2006

Abstract
The non-Nernstian anomalous response of a neutral carrier-based liquid membrane electrode was studied, and the equation on the membrane potential of the electrode was derived on the basis of the Teorell–Meyer–Sievers theory. The relationship between the anomalous behavior of the electrode and the composition of the electrode membrane was successfully explained by the equation.
THE HIGH SELECTIVITY OF MgO AND CaO FOR THE FORMATION OF 2-CARENE FROM 3-CARENE
Authors: Tanabe Kozo , Shimazu Katsuaki , Hattori Hideshi 
Published: July 2006

Abstract
The selectivity of various oxide catalysts for the isomerization of 3-carene were studied at 50–200°C. 2-Carene was predominantly formed over MgO, CaO, SrO, Y2O3, La2O3, and ZrO2, while p-cymene and various menthadienes over Ce2O3, Tio2,Al2O3, and SiO2–Al2O3. BaO, ZnO, and ThO2 produced only p-cymene, but their activities were very low.
DEHYDRATION AND DSHYDROGENATION OF sec-BUTANOL OVER ZINC PHOSPHATE CATALYST
Authors: Tada Akio , Itoh Hidenobu , Kawasaki Yoshitaka , Nara Juniclii 
Published: July 2006

Abstract
The dehydration and dehydrogenation of sec-butanol were carried out on zinc phosphate catalyst. The catalyst was found to show a very high selectivity for the dehydrogenation, when calcined at 650°C, though it showed a high selectivity for the dehydration when calcined at 300°C. The active sites for the dehydrogenation were confirmed to be basic sites by a poisoning experiment.
ELECTRON SPIN RESONANCE SPECTRA OF RADICAL ANIONS DERIVED FROM CYCLOHEPTA-3,6-DIENE-1,2,5-TRIONE AND CYCLOHEPTA-4,6-DIENE-1,2,3-TRIONE
Authors: Sakurai Hideki , Okada Akane , Shoji Yoshikazu , Itô Shô 
Published: July 2006

Abstract
The tropolone analoques of p- and o-benzosemiquinone (p- and o-troposemiquinone) were generated from cyclohepta-3,6-diene-1,2,5-trione and cyclohepta-4,6-diene-1,2,3-trione, respectively, and characterized by e.s.r. spectroscopy.
THE FORMATION OF HEXAGONAL BaCrO2.90 WITH A 5-LAYER STACKING SEQUENCE
Authors: Torii Yasuyoshi 
Published: July 2006

Abstract
The compound BaCrO2.90 was synthesized with a 5-layer hexagonal perovskite-like structure by firing in argon. The lattice parameters were a=5.732 Å and c= 11.920 Å. The atomic coordinates of each atom in BaCrO2.90 were determined by means of trial and error method. This compound was found to be of the Ba5Ta4O15 type.
KINETICS ON THE SULFONATION REACTION OF 1-DODECENE WITH SODIUM HYDROGENSULFITE
Authors: Sakumoto Akihisa , Miyata Teijiro , Washino Masamitsu 
Published: July 2006

Abstract
The kinetics on the radiation-induced addition of hydrogensulfite to 1-dodecene was investigated in the presence of a surfactant, 1-dodecanesulfonate, in an aqueous solution of t-butyl alcohol. The termination was found to be the reaction of 1-dodecanesulfonate radical with sulfite radical ion. This result was deduced to be due to the micellar effect.
A PROMISING MODIFICATION OF THE CARBODIIMIDE METHOD USING AN INSOLUBLE CARBODIIMIDE
Authors: Ito Hisashi , Takamatsu Norihiro , Ichikizaki Iwao 
Published: July 2006

Abstract
A modified polystyrene-divinylbenzene copolymer, in which ethylcarbodiimidomethyl groups were linked so as to be available as a condensing agent for peptide synthesis, were prepared. This polymer proved of great use in synthesizing some protected peptides without accompanying any troublesome by-product which would otherwise be formed.
STUDIES ON THE MICHAEL-TYPE REACTION OF S-VINYL SULFILIMINE
Authors: Yamamoto Tamotsu , Okawara Makoto 
Published: July 2006

Abstract
S-Phenyl-S-vinyl-N-tosyl-sulfilimine (3) was synthesized and the Michael type reactions of (3) with various nucleophiles such as thiols, dithiocarbamate, alcohols, amines and malononitrile were investigated. The adducts (4) obtained were pyrolyzed to give the vinyl compounds (7) together with sulfenamide (8) in good yield.
PHOTOCHEMICAL REACTION OF CYCLOHEPTATRIENE WITH SOME AROMATIC QUINONES
Authors: Mori Akira , Takeshita Hitoshi 
Published: July 2006

Abstract
The photochemical addition reaction of cycloheptatriene with p-benzoquinone and 1,4-naphthoquinone yielded the spiro-ethers having 7-oxa-bicyclo[4,2,1] nonadiene moiety by the characteristic (6+2)π addition process. The latter quinone further produced the carbocyclic (2+2)π - and (6+2)π cycloadducts. Either (4+2)π adducts or dioxetanes were undetectable in both cases. The photoadducts were stable under their formation conditions, showing no tendency to cause the isomerization.
THE REACTION OF CYCLOALKANONES WITH COPPER(II) HALIDES. IV. THE OXIDATIVE RING CONTRACTION OF CYCLOFEPTANONES WITH COPPER(II) CHLORIDE IN ACETIC ACID
Authors: Satoh J Yasuo , Nishizawa Kyoko , Hirose Masakatsu 
Published: July 2006

Abstract
In the reaction of cyoloheptanones with copper(II) chloride, it was found that ring contraction accompanying decarbonylation occurred, followed by chlorination, yielding polychlorinated cyclohexane-1,2-diones.
HYDROGENATION OF OLEFINS CATALYZED BY ALKALINE EARTH METAL OXIDES
Authors: Hattori Hideshi , Tanaka Yasutaka , Tanabe Kozo 
Published: July 2006

Abstract
Hydrogenation of olefins was investigated over MgO, CaO, SrO, and BaO at 250°C. The oxides became active on evacuating above 600°C and showed maximum activities when evacuated around 1000°C. The maximum activity increased in the order of MgO &lt; CaO &lt; BaO &lt; SrO. The order of the hydrogenation rate was 1-butene &lt; propylene &lt;&lt; ethylene over MgO and CaO.
ESR STUDY OF PHOSPHORANYL RADICALS OF PFnH4−n TYPE TRAPPED IN MATRICES
Authors: Sogabe Kunihisa , Hasegawa Akinori , Komatsu Tamikuni , Miura Masaji 
Published: July 2006

Abstract
A series of phosphoranyl radicals of PFnH4-n type trapped in xenon and SF6 matrices was investigated by ESR method. The isotropic hyperfine coupling of the phosphorus atom was found to decrease remarkably on the successive replacements of the ligand fluorine by hydrogen. This was interpreted in terms of the electronegativity difference between the fluorine and hydrogen atoms.
SYNTHESIS AND RESOLUTION OF OPTICALLY ACTIVE CARBONFUNCTIONAL ORGANOSILICON COMPOUNDS
Authors: Terunuma Daiyo , Okada Toshihiro , Araki Tsunao , Nohira Hiroyuki 
Published: July 2006

Abstract
Triorganosilylmethylanimes, Me(PhCH2)RSiCH2NH2 [R=C6H5(Ia), p-MeC6H4(Ib), m-MeC6H4(Ic), and o-MeC6H4(Id)] were resolved by fractional crystallization of the (+)-tartaric acid salts of the racemic triorganosilylmethylamines from methanol. The following optically active amines were obtained from the less soluble diastereoisomers; (+)-Ia([α]D21 +9.9 (c=5, in Et2O)), (−)-Ib ([α]D21−16.6 (c=5, in Et2O)), (+)-Ic([α]D22 +11.1 (c=5, in Et2O)), and (+)-Id ([α]D21 +7.0 (c=5, in Et2O)).
STEREOSELECTIVE FORMATION OF SOME THIETANE 1,1-DIOXIDES VIA SULFENES BY THE REACTION OF DIAZO COMPOUNDS WITH SULFUR DIOXIDE
Authors: Tanabe Toyoshige , Shingaki Tadao , Nagai Toshikazu 
Published: July 2006

Abstract
In the reaction of diazo compounds with sulfur dioxide, trapping experiment by enamines indicates the existence of sulfene as a reaction intermediate. The stereochemistry of the sulfene-enamine cycloadducts and the solvent effect upon the stereoselectivity gave a suggestive information on the mechanism of the cycloaddition reaction.
A SENSITIVE METHOD FOR THE DETERMINATION OF ANTIMONY BY NON-DISPERSIVE ATOMIC FLUORESCENCE SPECTROMETRY
Authors: Tsujii Kanji , Kuga Kazuo , Sugaya Isao 
Published: July 2006

Abstract
A sensitive method for the determination of antimony by non-dispersive atomic fluorescence spectrometry is described. Antimony is converted to stibine utilizing sodium borohydride reduction, and atomized in a hydrogen-argon-entrained air flame. The detection limit of antimony is 3 ng, and the analytical working curve is linear in the range of three decades of concentration from the detection limit.