bluuebunny/crossref_metadata_2025_split huggingface dataset:
HOMOGENEOUS HYDROGENATION OF ALKENES BY THE COMPLEX OF POLYACRYLIC ACID WITH RHODIUM(III)
Authors: Nakamura Yoshio , Hirai Hidefumi 
Published: July 2006

Abstract
The complex of polyacrylic acid with rhodium(III) functions as a homogeneous catalyst for the hydrogenation of terminal alkenes in methanol solution at 30°C under an atmospheric pressure of hydrogen. The triethylammonium salt of the complex is effective for the hydrogenation of internal alkenes as well as terminal alkenes.
REACTION OF MIXED CARBOXYLIC ANHYDRIDES WITH GRIGNARD REAGENTS. A CONVENIENT METHOD FOR THE PREPARATION OF 1,4- OR 1,6-DIKETONES
Authors: Araki Masashi , Sakata Shigeru , Takei Hisashi , Mukaiyama Teruaki 
Published: July 2006

Abstract
It was found that mixed carboxylic anhydrides of γ- or ε-oxocarboxylic acids react with Grignard reagents to give 1,4- or 1,6-diketones in 32∼71% yields by one step procedure.
SYNTHESES OF FURANS AND PYRROLES FROM ACYCLIC 1,3-DIENES VIA 3,6-DIHYDRO-1,2-DIOXINS
Authors: Kondo Kiyosi , Matsumoto Masakatsu 
Published: July 2006

Abstract
Base-catalyzed isomerization of 3,6-dihydro-1,2-dioxins followed by dehydration and the isomerization in the presence of primary amines provide useful, high yield routes to furans and pyrroles, respectively.
POTENTIOMETRIC ANALYSIS OF THE FORMOSE REACTION
Authors: Matsuura Teruo , Shigemasa Yoshihiro , Sakazawa Chikahiro 
Published: July 2006

Abstract
The course of the calcium hydroxide-catalyzed reaction of formalin to give monosaccharides was potentiometrically followed. Changes of the oxidation-reduction potential curve obtained were found to correspond satisfactorily to the reaction phases; induction period, accumulation of C3 products, saccharide formation, and gradual decomposition of saccharides, successively.
QUANTITATIVE ESTIMATES OF π-CONTACT TERM CONTRIBUTIONS TO THE LANTHANIDE-INDUCED 1H AND 13C SHIFTS IN ANILINE AND p-TOLUIDINE
Authors: Hirayama Masatoshi , Sato Michihiko 
Published: July 2006

Abstract
An attempt was made for the separation of contact term contributions from the Pr(FOD)3- and Eu(FOD)3-induced 1H and 13C shifts in aniline and p-toluidine, by using the contact shift pattern estimated theoretically. This suggested the transfer of negative and positive spin from the Eu ion and the Pr ion, respectively.
A NEW REAGENT FOR ALDEHYDE SYNTHESIS: METHYLENEBIS(N,N-DIMETHYLDITHIOCARBAMATE)
Authors: Nakai Takeshi , Okawara Makoto 
Published: July 2006

Abstract
Treatment of the title compound with n-butyllithium produces the lithiomethylene derivative (4) . The reagent 4 so generated has been shown to serve effectively as an equivalent of the formyl anion by alkylation of 4 with alkyl halides followed by hydrolysis with mercuric ion to the corresponding aldehyde.
ION-MOLECULE REACTIONS BETWEEN THALLIUM(I) AND VARIOUS LIGANDS: FORMATION OF 1:1 COMPLEXES IN GAS PHASE
Authors: Nakayama Hiroaki , Nishijima Chiho , Tachiyashiki Satoshi 
Published: July 2006

Abstract
Gas phase reactions of thallium(I) cation with several ligands were investigated by the use of hexafluoroacetylacetonatothallium(I) as a precursor of the ion. 1:1 complex formation with thallium(I) was observed.
IONIZATION OF LONG-LIVED HIGHLY EXCITED STATES OF HYDROGEN AND DEUTERIUM ATOMS BY COLLISION WITH WATER MOLECULES
Authors: Shibata Takemasa , Fukuyama Tsutomu , Kuchitsu Kozo 
Published: July 2006

Abstract
Long-lived highly excited Rydberg states of hydrogen (deuterium) atoms, H** or D**, were produced by impact of 80 eV electrons on H2O or D2O molecules. The ratio of the ionization cross sections forming protons and deuterons, σ(D**+D2O→D++D2O+e)/σ(H**+D2O→H++D2O+e), was estimated from the dependence of the ion intensities on the target gas pressures to be 1.35±0.15. This ratio is in close agreement with a theoretical estimate, 1.38, based on Matsuzawa’s theory predicting the transfer of the rotational energy of a polar target to the Rydberg electron when the excited atom is ionized.
SUBSTITUENT EFFECTS ON 13C CHEMICAL SHIFTS OF CARBOXYL CARBONS IN SUBSTITUTED BENZOIC ACIDS
Authors: Niwa Jun , Yamazaki Mitsuru 
Published: July 2006

Abstract
The 13C chemical shifts of carboxyl carbons of substituted benzoic acids in dimethyl sulfoxide-d6 show a linear relationship with pKa-values for m- and electron-withdrawing p-substituents, whereas for electron-donating p-substituents they show upfield deviations from the regression line. The chemical shifts are determined by Yukawa–Tsuno’s equation with a negative r-value.
SYNTHESES OF FLUORINE-CONTAINING INDANES AND INDENES: A NOVEL RADICAL CYCLOADDITION OF ALKYLBENZENES WITH HEXAFLUOROPROPENE
Authors: Kimoto Hiroshi , Muramatsu Hiroshige , Inukai Kan 
Published: July 2006

Abstract
Four 1-trifluoromethyl-1,2,2-trifluoroindanes(IV) were synthesized in one step from alkylbenzenes(I) and hexafluoropropene(II) in the presence of di-t-butyl peroxide. The dehydrofluorination of IV gave the corresponding 1-trifluoromethyl-1,2-difluoroindenes(V).
REACTION OF HALOANTHRAQUINONES WITH TRI-n-BUTYLPHOSPHINE
Authors: Arai Sadao , Yamagishi Takamichi , Hida Mitsuhiko 
Published: July 2006

Abstract
New phosphonium salts were obtained by the reaction of 1-amino-2,4-dibromoanthraquinone or sodium 1-amino-4-bromoanthraquinone-2-sulfonate with tri-n-butylphosphine in the presence of cuprous chloride. In these reactions, the bromine atom of anthraquinone derivatives was substituted by the phosphine to give phosphonium salts containing carbon–phosphorus bond.
SYNTHESIS OF Mg3(PO4)2·8H2O
Authors: Kanazawa Takafumi , Umegaki Takao , Wasai Eiji 
Published: July 2006

Abstract
Mg3(PO4)2·8H2O was prepared by converting Mg3(PO4)2·22H2O in an alkaline solution at a pH of about 9. The conversion period was reduced to 2–4 weeks by the addition of MgHPO4·3H2O to the 22-hydrate and the pH adjustment with Na2CO3.
INDUCED CIRCULAR DICHROISM OF DYES BURIED IN SOLID “LIQUID CRYSTAL” FILMS OF POLY-γ-METHYL-d-GLUTAMATE
Authors: Tsuchihashi Nobuaki , Nomori Hiroyuki , Hatano Masahiro , Mori Shigeo 
Published: July 2006

Abstract
Induced circular dichroism was found for achiral molecules when buried in the solid film of PMDG made by casting from solution. This circular dichroism is regarded to be induced by the dissymmetric field due to the supramolecular helical structure of PMDG molecules retained in the solid film.
THE REACTION OF METAL ACETYLACETONATES WITH CHLORAL
Authors: Uehara Kaku , Ohashi Yoshiyuki , Tanaka Makoto 
Published: July 2006

Abstract
The reaction of metal acetylacetonate(M(acac)n) with chloral has been investigated from the viewpoint of the catalyses of M(acac)n in the crossed aldol reaction of chloral with acetylacetone, and in the polymerization of chloral.
STRUCTURE AND REACTIVITY OF ORGANIC IONS IN GAS-PHASE RADIOLYSIS. VII. PROTON EXCHANGE REACTION IN ELECTROPHILIC AROMATIC SUBSTITUTION
Authors: Yamamoto Yukio , Takamuku Setsuo , Sakurai Hiroshi 
Published: July 2006

Abstract
In the gas-phase radiolysis of a C3H8(100 mm)–C6H6 mm)–C6D6(5 mm) mixture, it has been shown that isopropylbenzene (IPB) formed by the attack of i-C3H7+ ions to benzene consists of IPB-d1, -d2, -d3, and -d4 as well as IPB-d0 and -d5, indicating that a proton exchange between an intermediate complex and benzene molecules has occurred.
PHASE TRANSITION OF LEAD(II) SUCCINATE
Authors: Nagase Kenzo , Yokobayashi Hiroko 
Published: July 2006

Abstract
Lead(II) succinate exhibited a phase transition from tetragonal to cubic at 160°C, with ΔH = 0.6 kcal/mol and ΔS = 1.4 cal/mol deg. The phase transition was reversible and characterized by accompanying a great change in infrared absorption spectrum.
SYNTHESIS OF RIPARIOCHROMENE B AND RIPARIOCHROMENE C
Authors: Nakayama Mitsuru , Hayashi Shûichi , Tsukayama Masao , Horie Tokunaru , Masumura Mitsuo 
Published: July 2006

Abstract
The condensation of 7-hydroxy-2,2-dimethylchroman (III) and benzoyloxyacetonitrile gave 7-hydroxy-6-benzoyloxyacetyl-2,2-dimethylchroman (IV). 7-Hydroxy-6-acetoxyacetyl-2,2-dimethylchroman (VIII) was obtained from IV via four steps. The dehydrogenation of VIII with DDQ in dry toluene afforded ripariochromene B (I). Ripariochromene C (II) also was synthesized in a similar manner.
THE BIOSYNTHESIS OF ALOENIN IN ALOE ARBORESCENS MILL. VAR. NATALENSIS BERGER
Authors: Suga Takayuki , Hirata Toshifumi , Koyama Fumihiro , Murakami Eiko 
Published: July 2006

Abstract
The 14C-labeling pattern in aloenin (I) biosynthesized from [2-14C]malonate, [1-14C]acetate, [1-14C]- and [3-14C]phenylalanine, and [methyl- 14C]methionine in Aloe arborescens Mill. var. natalensis Berger demonstrated that the carbon skeleton of aloenin is generated by the acetate-malonate pathway and that the methyl of the methoxyl group is originated from methionine.
DEOXYGENATION OF EPOXIDES TO OLEFINS WITH FeCl3–n-BuLi SYSTEM
Authors: Fujisawa Tamotsu , Sugimoto Kikuo , Ohta Hiromichi 
Published: July 2006

Abstract
Deoxygenation reaction of epoxides with iron(III) chloride–n-butyllithium system gave olefins in high yields under mild reaction conditions.
PHOTOCHEMICAL OXIDATION OF 6,6-DIARYLFULVENES
Authors: Harada Nobuyuki , Kudo Soichi , Uda Hisashi , Utsumi Shun-ichi 
Published: July 2006

Abstract
Sensitized photooxidation of 6,6-diphenylfulvene afforded 1,4-ketol, 2 (3H)-oxepinone, and 4-phenyl-3-chromene derivatives, all of which arose from 1,4 addition of oxygen. While, 6,6-di-p-anisylfulvene gave, in addition to 1,4-ketol, 1,2 oxygen addition products as minor components. Reactions of 6,6-di-p-anisylfulvene 1,4-epidioxide have been also investigated.
EFFECTS OF AMINES ON THE DIMERIZATION OF ISOPRENE CATALYZED BY BIS(TRIPHENYLPHOSPHINE)NICKEL DICHLORIDE REDUCED BY SODIUM BOROHYDRIDE
Authors: Mochida Isao , Yuasa Shigeki , Seiyama Tetsuro 
Published: July 2006

Abstract
Amines introduced into the dimerization of isoprene catalyzed by Ni(PPh3)2Cl2–NaBH4 gave significant effects on the catalytic activity and selectivity. Yield of linear dimers was 60% by n-propylamine, whereas it was only 3% by tert-butylamine. The formation of cyclo dimers was increased by pyridine and its derivatives.
THE EQUILIBRIUM AND KINETIC STUDIES OF THE REACTION OF ETHYLENEDIAMINETETRAACETATOAQUACHROMATE(III) ION WITH ACETATE ION
Authors: Ogino Hiroshi , Watanabe Toshiyuki , Tanaka Nobuyuki 
Published: July 2006

Abstract
The equilibrium constant, K, and the rate constants for the reaction,
Credta(H2O)−+OAc− (Remark: Graphics omitted.) Cr(OAc)edta2−+H2O
were determined spectrophotometrically to be 0.61 M−1 for K, 8.7 M−1 s−1 for kf and 14 s−1 for kb at ionic strength 1.0 (NaClO4) and 25 °C.
HIGH CATALYTIC ACTIVITY OF IRON SULFATES FOR FRIEDEL-CRAFTS TYPE BENZYLATION OF TOLUENE WITH BENZYL CHLORIDE
Authors: Arata Kazushi , Toyoshima Isamu 
Published: July 2006

Abstract
Ferrous and Ferric sulfates prepared by calcining their hydrates in air showed surprisingly high catalytic activity and selectivity for the title reaction, and also catalyzed the benzoylation of toluene.
MONODEHYDRO-5,5′-IMINODIBARBITURIC ACID, A RADICAL PRODUCED BY THE REDUCTION OF MUREXIDE
Authors: Kurata Tadao , Fujimaki Masao 
Published: July 2006

Abstract
The reduction of murexide with some reducing reagents such as l-cysteine (CySH) gave a stable radical product which was considered to be monodehydro-5,5′-iminodibarbituric acid from the results of ESR spectroscopy.
ENANTIOFACE DIFFERENTIATING (ASYMMETRIC) HYDROGENATION OF METHYL ACETOACETATE WITH MODIFIED RANEY NICKEL
Authors: Ozaki Hiroshi , Tai Akira , Izumi Yoshiharu 
Published: July 2006

Abstract
Rate studies of the liquid phase hydrogenation of methyl acetoacetate were carried out on the Raney nickel catalyst modified with optically active substances.
The results are as follows ; 1) Both the optical yield of product and the rate of hydrogenation were controlled by the nature of modifying reagents but no direct correlation was present between them. 2) The apparent activation energy of hydrogenation was not varied with the change of modifying reagents.
The most probable rate-controlling process of hydrogenation was the surface reaction. The optical yield of product was not explained by the simple kinetic controlled differentiation. Details of differentiating process still remained equivocal.
INTERCONVERSION OF PTEROSINS, ILLUDOID SESQUITERPENES: SYNTHESIS OF ONITIN (4-HYDROXY-PTEROSIN Z) AND (±)-PTEROSIN D
Authors: Hayashi Yuji , Nishizawa Mugio , Sakan Takeo 
Published: July 2006

Abstract
Two pterosins, onitin (5) (4-hydroxy-pterosin Z) and (±)-pterosin D (6), were synthesized from pterosin Z (3) by chemical transformations.
MÖSSBAUER EFFECT OF 119Sn IN THE THERMAL DECOMPOSITION PRODUCTS OF TIN(IV) SULFIDE
Authors: Ichiba Sumio , Katada Motomi , Negita Hisao 
Published: July 2006

Abstract
Tin sesquisulfide, Sn2S3, was obtained as a single phase through thermal decomposition of SnS2. The Mössbauer parameters of the phase were not the same as those of the mixture of SnS and SnS2 and were consistent with those of Sn2S3.
A NOVEL SYNTHESIS OF ORGANIC SULFIDES FROM ORGANOLITHIUMS AND PHOSPHINODITHIOATE ESTERS
Authors: Goda Koshiro , Inamoto Naoki 
Published: July 2006

Abstract
n-Butyl or phenyl sulfides were synthesized by the reactions of n-butyl- or phenyllithium and diphenylphosphinodithioates in tetrahydrofuran in excellent yields.
FORMATION OF A NONALLYLIC HOMONERYL PYROPHOSPHATE BY FARNESYL PYROPHOSPHATE SYNTHETASE
Authors: Saito Akio , Ogura Kyozo , Seto Shuichi 
Published: July 2006

Abstract
The reaction of 4-methylpent-4-enyl pyrophosphate (1) with dimethylallyl pyrophosphate (2) catalyzed by farnesyl pyrophosphate synthetase (prenyltransferase) results in an exclusive cis condensation to give a nonallylic homoneryl pyrophosphate (3).
A NEW METHOD FOR THE PREPARATION OF α-DIKETONES BY THE PHOTO-OXIDATION OF β-KETOALKYLPYRIDINIUM IODIDES
Authors: Mukaiyama Teruaki , Atsumi Kunio , Takeda Takeshi 
Published: July 2006

Abstract
α-Diketones were obtained in good yields by the photo-oxidation of β-ketoalkylpyridinium iodides in the presence of tetra-n-butylammonium iodide.
A CONVENIENT METHOD FOR THE SYNTHESIS OF CARBOXYLIC ESTERS
Authors: Mukaiyama Teruaki , Usui Masahiro , Shimada Eiichiro , Saigo Kazuhiko 
Published: July 2006

Abstract
The equimolar reactions of carboxylic acids and alcohols with 1-methyl-2-halopyridinium salts in the presence of two equimolar amounts of tri-n-butylamine afforded the corresponding carboxylic esters in good yields.
A CONVENIENT METHOD FOR THE PREPARATION OF UNSYMMETRICAL ETHERS AND IT’S APPLICATION TO THE SYNTHESIS OF ROSE OXIDE AND DIHYDRO ROSE OXIDE
Authors: Ishikawa Hiroshi , Ikeda Shigeru , Mukaiyama Teruaki 
Published: July 2006

Abstract
Alkyl 2,4-dichlorophenyl acetals react with Grignard reagents in aromatic hydrocarbons such as benzene or toluene at room temperature to afford the corresponding unsymmetrical ethers in good yields. The utility of this new procedure is demonstrated by the synthesis of rose oxide and dihydro rose oxide.
STUDIES ON ELECTRODE PROCESSES OF OXOVANADIUM(IV). III. SOLVENT EFFECT ON REDUCTION POTENTIAL OF VANADYL ACETYLACETONATE
Authors: Kitamura Mitsutaka , Yamashita Kazuo , Imai Hideo 
Published: July 2006

Abstract
The correspondence of the reduction potential of vanadyl acetylacetonate and the wavelength of the optical absorption band was well recognized from the solvent effect on the ligand configuration. However, the noticeable deviation of the data in the aqueous solution was observed. The corelation to the donor number is also discussed.
THERMAL DECARBONYLATION OF QUINONES IN THE PRESENCE OF HYDROGEN
Authors: Sakai Tomoya , Hattori Masayuki 
Published: July 2006

Abstract
Non-catalytic thermal decarbonylation of quinone proceeded for 9,10-phenanthrenequinone, 1,4- and 1,2-naphthoquinones and p-benzoquinone as well as for 9,10-anthraquinone in the previous study. In the cases of 1,2-naphthoquinone and p-benzoquinone, however, the title reaction occurred only in 20 – 40% selectivity due to the consumption of feed quinones seemingly through simultaneous polymerization.
INFRARED SPECTRA AND ADHESION STRENGTH OF α-CYANOACRYLATE POLYMER FILMS
Authors: Shibasaki Toshikazu , Suëtaka Wataru 
Published: July 2006

Abstract
The infrared spectra of α-cyanoacrylate thin film on aluminum coupons and the adhesion strength of Al-α-cyanoacrylate-Al joints change depending upon the structure of oxide on aluminum. The adhesion strength may be related to the molecular orientation in adhesive layer which is affected by the surface structure of the oxide.
A FACILE SYNTHESIS OF CARBOXAMIDES BY USING 1-METHYL-2-HALOPYRIDINIUM IODIDES AS COUPLING REAGENTS
Authors: Bald Edward , Saigo Kazuhiko , Mukaiyama Teruaki 
Published: July 2006

Abstract
Carboxamides are rapidly formed in high yields by equimolar reactions of free carboxylic acids and amines, involving secondary or tertiary alkyl substituted acids and amines, with 1-methyl-2-halopyridinium iodides in the presence of tri-n-butylamine.
STEREOSELECTIVITY IN THE HOMOLYTIC REACTION OF EPIMERIC t-BUTYL 2,4,6-TRIMETHYL-1,3,5-TRITHIANE-2-PEROXYCARBOXYLATES
Authors: Arai Kazutaka , Iwamura Hiizu , Oki Michinori 
Published: July 2006

Abstract
Isomeric t-butyl 2,4,6-trimethyl-1,3,5-trithiane-2-peroxycarboxylates are found to show large difference in decomposition rates, the axial peroxycarboxylate decomposing much faster. Preferential formation of products by axial-attack of the intermediate radical is also observed when the peroxycarboxylates are decomposed in toluene.
THE EFFECT OF CHLORINE OR ITS COMPOUNDS ON THE REACTION OF η-Al2O3 WITH ZnO
Authors: Tsuchida Takeshi , Furuichi Ryusaburo , Ishii Tadao 
Published: July 2006

Abstract
The addition of a small amount of chlorine or its compounds (A1C13·6H2O and HCl) accelerated remarkably the reaction of η-Al2O3 with ZnO.
AMORPHOUS PHASE IN YTTRIUM-COBALT-BORON SYSTEM
Authors: Yajima Seishi , Okamura Kiyohito , Shishido Toetsu 
Published: July 2006

Abstract
By rapid quenching of the melt, an amorphous phase of yttrium-cobalt-boron system was obtained. The phase is stable at room temperature, and its crystallization takes place in the vicinity of 700°C on heating at 10°C/min. Electrical resistivity of the amorphous phase is constant at about 10−3Ωcm in the temperature range below 660°C; the variation in the resistivity with the transition from the amorphous to the equilibrium state was measured.
THE γ-RAY-INDUCED OXIDATION OF TOLUENE IN LIQUID CARBON DIOXIDE
Authors: Ishizaki Kaname , Sato Shin 
Published: July 2006

Abstract
The γ-radiolysis of the liquid-phase mixture of toluene and carbon dioxide has been studied at 0°C. The G-value of cresols accounted for 50% of the G-value of the decomposition of carbon dioxide. Speculation was offered on the precursor of cresols.
MICROWAVE SPECTRA AND MOLECULAR STRUCTURE OF gauche-ETHANETHIOL
Authors: Hayashi Michiro , Nakagawa Jun , Kuwada Kazunori 
Published: July 2006

Abstract
Microwave spectra of gauche-ethanethiol were studied in relation to its molecular structure. The rs structure of this molecule could be determined and was compared with that of trans isomer. Discussions were made on the angles around the carbon atom of the CH2 group in the molecule.
4,5:8,9-DIBENZO-2,10-CYCLOUNDECADIEN-6-YNE: A POTENTIAL PRECURSOR OF A NON-BRIDGED [11]ANNULENYL CATION
Authors: Dagan Arie , Shaw Guan-Su , Gazit Aviv , Rabinovitz Mordecai 
Published: July 2006

Abstract
Two geometrical isomers of 4,5:8,9-dibenzo-2,10-cycloundecadien-6-yne were prepared by a Wittig reaction between 2,2′-diformyldiphenylacetylene and trimethylenedi(triphenylphosphonium bromide). Their stereochemical configuration, cis,trans (I) and trans,trans (II) were deduced from the nmr spectral data. Attempts to use (I) and (II) as precursors to the [11]annulenyl cation (III) have so far not been realized.
HIGH RESOLUTION AUGER ELECTRON SPECTROSCOPY OF NITRIC OXIDE ADSORBED ON A TUNGSTEN SURFACE
Authors: Kunimori Kimio , Kawai Tomoji , Kondow Tamotsu , Onishi Takaharu , Tamaru Kenzi 
Published: July 2006

Abstract
High resolution Auger spectra indicate that NO is dissociatively adsorbed on a polycrystalline tungsten surface at room temperature.
NITROGEN-15 NUCLEAR MAGNETIC RESONANCE OF HISTIDINE. THE EFFECT OF pH
Authors: Kawano Keiichi , Kyogoku Yoshimasa 
Published: July 2006

Abstract
Natural abundance 15N nmr spectra of L-histidine, and τ- and π-methylhistidines were measured. The signal assignments to the τ- and π-nitrogen could be made by comparison of these spectra. From the pH titration of the 15N chemical shifts, it is directly proved that the τ-H tautomer is predominant in a basic solution.
BIOSYNTHESIS OF ISOPRENOID FROM AMINO ACID IN HIGHER PLANT. INCORPORATION OF l-VALINE INTO LINALOOL
Authors: Suga Takayuki , Hirata Toshifumi , Tange Keiji 
Published: July 2006

Abstract
l-[U-14C]Valine was incorporated into linalool (I) in cinnamomum Camphora Sieb. var. linalooliferum Fujita with 0.0055% at the highest value. The labeling pattern indicated that some of 3,3-dimethylallyl pyrophosphates originate from valine via an alternative route rather than through the mevalonoid pathway.
SYNTHESIS OF CACALOL
Authors: Inouye Yoshinobu , Uchida Yuji , Kakisawa Hiroshi 
Published: July 2006

Abstract
It is established that cacalol is 5,6,7,8-tetrahydro-3,4,5-trimethylnaphtho[2,3-b]furan-9-ol by synthesis in several steps from creosol methyl ether.
POLARIZED TRIPLET–TRIPLET ABSORPTION MEASUREMENTS WITH THE AID OF THE STRETCHED POLYMER FILM TECHNIQUE: PHENANTHRENE
Authors: Hoshi Toshihiko , Ota Kazuo , Shibuya Eiichi , Murofushi Kiyoshi 
Published: July 2006

Abstract
A procedure to measure a polarized triplet–triplet absorption spectrum using a stretched polymer film was described, and this method was applied to determine the polarizations of the triplet–triplet transitions of phenanthrene.
SQUID BIOLUMINESCENCE II. ISOLATION FROM WATASENIA SCINTILLANS AND SYNTHESIS OF 2-(p-HYDROXYBENZYL)-6-(p-HYDROXYPHENYL)-3,7-DIHYDROIMIDAZO[1,2-a]PYRAZIN-3-ONE
Authors: Inoue Shoji , Sugiura Sumi , Kakoi Hisae , Hasizume Kiyomatsu , Goto Toshio , Iio Hideo 
Published: July 2006

Abstract
2-(p-Hydroxybenzyl)-6-(p-hydroxyphenyl)-3,7-dihydroimidazo[1,2-a]pyrazin-3-one was isolated from the squid, Watasenia scintillans. Its structure was determined by synthesis. It is considered to be a precursor of hitherto unknown Watasenia luciferin or photoprotein.
C–S STRETCHING VIBRATIONS AND MOLECULAR CONFORMATIONS OF METHYL PROPYL SULFIDE AND RELATED ALKYL SULFIDES
Authors: Nogami Norimasa , Sugeta Hiromu , Miyazawa Tatsuo 
Published: July 2006

Abstract
Raman and infrared spectra of methyl propyl sulfide, ethyl methyl sulfide, and isobutyl methyl sulfide were measured. Correlations were found between C–S stretching frequencies and internal rotation about the C–CH2 and CH2–S bonds of the (Remark: Graphics omitted.)C–CH2–S–CH3 groups. The new correlations were applied for conformation studies of methionine groups.
INTERMEDIATORY FORMATION OF MESOIONIC IMIDAZOLIUM-4-OXIDES IN THE REACTION OF α-HALOACYL CHLORIDES WITH AMIDINES
Authors: Hamaguchi Masashi , Ibata Toshikazu 
Published: July 2006

Abstract
Reaction of α-haloacyl chlorides with benzamidines in the presence of triethylamine generated mesoionic imidazolium-4-oxides (2b) as intermediates which gave pyrroles on treatment with acetylenic compounds via 1,3-dipolar cycloaddition followed by extrusion of isocyanates.
SOME SOLID MOLECULAR COMPLEXES OF I2
Authors: Biswas Byomkesh 
Published: July 2006

Abstract
In water I2 combines with methylene blue, thionine, pararosaniline, crystal violet and acridine orange, and solid complexes precipitate out. The complex with methylene blue is 1:1 and shows a new absorption band in CHCl3 at 365 nm. It appears to be of the electron donor–acceptor type: n (dye)→σ* (I2).
KINETIC STUDY ON THE RADICAL ADDITION OF SODIUM HYDROGENSULFITE TO ALLYL ALCOHOL
Authors: Miyata Teijiro , Sakumoto Akihisa , Washino Masamitsu , Abe Toshihiko 
Published: July 2006

Abstract
The kinetics of the radical chain reaction of sodium hydrogensulfite with allyl alcohol In aqueous solutions was investigated. The apparent rate constant was found to be 4.69×10−4M·sec−1 at the dose rate of 1.35×1016 eV·g−1·sec−1. The kinetic chain length was estimated to be 345.