bluuebunny/crossref_metadata_2025_split huggingface dataset:
PHOTOCHEMICAL CYCLOADDITION OF BENZOPHENONE WITH 1,5-DIMETHYL-6-METHYLENETRICYCLO[3.2.1.02,7]OCT-3-EN-8-ONE AND A RELATED ALCOHOL: A STRIKING SUBSTITUENT EFFECT ON THE PRODUCT COMPOSITION
Authors: Nitta Makoto , Sugiyama Hiroshi , Sekine Yoshiro 
Published: July 2006

Abstract
Irradiation of 1 ,5-dimethyl-6-methylenetricyclo [3.2.1.02,7]oct-3-en-8-one (I) in the presence of benzophenone afforded two adducts (III) and (IV): the alcohol derivative (II), however, the only one (V).
DIMERIZATION OF ETHYLENE CATALYZED BY BIS(TRIPHENYLPHQSPHINE)PENTACHLOROPHENYL(CHLORO)NICKEL(II) ACTIVATED WITH SILVER SALT
Authors: Koike Takao , Kawakami Kiyoshi , Maruya Ken-ichi , Mizoroki Tsutomu , Ozaki Atsumu 
Published: July 2006

Abstract
Bis(triphenylphosphine)pentachlorophenyl(chloro)nickel(II) activated with silver perchlorate effectively catalyzes ethylene dimerization in bromobenzene at 0°C under 76 cmHg. The catalytic activity was further enhanced by adding a catalytic amount of triphenylphosphine. An analogous phenyldimethylphosphine complex, however, was much less active for ethylene dimerization.
SEPARATION OF STRONTIUM ION FROM A LARGE AMOUNT OF CALCIUM ION BY THE USE OF A MACROCYCLIC ETHER
Authors: Kimura Toshimasa , Iwashima Kiyoshi , Ishimori Tatsujiro , Hamaguchi Hiroshi 
Published: July 2006

Abstract
A small amount of Sr2+ (0.7∼20 mg) was simply separated from a large amount of Ca2+(1.5 g) by liquid–liquid extraction using dicyclohexyl-18-crown-6 chloroform solution. Average recovery of Sr2+ was 97 %, and the amount of Ca2+ in the final strontium fraction of the separation was decreased to 10−4∼10−5 part of the initial amount.
A CONVENIENT METHOD FOR THE PREPARATION OF ISOTHIOCYANATES USING 2-CHLOROPYRIDINIUM SALT
Authors: Shibanuma Tadao , Shiono Manzo , Mukaiyama Teruaki 
Published: July 2006

Abstract
Various isothiocyanates are prepared in high yields by treating triethylammonium dithiocarbamates with 2-chloro-1-methylpyridinium salt in the presence of triethylamine.
[4+2]-CYCLOADDITIONEN VON AZOALKENEN AN ELEKTRONENREICHE ALKENE
Authors: Sommer Sven 
Published: July 2006

Abstract
Electron-deficient azo-alkenes 1 react with elektron-rich alkenes 2 to yield [4+2]-cycloadducts 3. The regiochemistry and the stereochemistry of the [4+2]-cycloadditions follow from the 1H-NMR-data of the synthesized 1,4,5,6-tetrahydropyridazines.
THE NOVEL OXIDATION OF 1-ALKYLAZULENES TO 1-ACYLAZULENES WITH DDQ
Authors: Amemiya Tamio , Yasunami Masafumi , Takase Kahei 
Published: July 2006

Abstract
The α-methylene group of 1-alkylazulene side-chain is readily oxidized to carbonyl by treatment with DDQ in aq. acetone or dioxane. The reaction provides a convenient method for the conversion of 1-alkylazulenes (1) into 1-acylazulenes (2).
CALCULATION OF PARTIAL PRESSURES ON EACH SULFUR SPECIES IN TOTAL SULFUR VAPOR AT TEMPERATURES FROM 350° TO 1000°C UNDER ONE ATMOSPHERIC PRESSURE
Authors: Wakihara Masataka , Nii Junji , Uchida Takashi , Taniguchi Masao 
Published: July 2006

Abstract
The partial pressures of S2, S3, – S8 in total sulfur vapor under one atmospheric pressure were calculated by reconsidering literature data. The total sulfur pressure consists mainly of the species of S2 at the temperature ranges higher than 650°C. At lower temperatures S7 species besides S8 and S6 becomes important constituent in sulfur vapor.
PHOTOCHEMICAL STUDY ON THE PHOTOCHEMOTHERAPY. I .SOLVENT EFFECT ON FLUORESCENCE SPECTRUM OF 8-METHOXYPSORALEN
Authors: Sasaki Masako , Sakata Toshibumi , Sukigara Mitsunori 
Published: July 2006

Abstract
The absorption and fluorescence spectra of 8-methoxypsoralen were investigated in various kinds of solvents. It was found that the emission maximum wavelength and the intensity of fluorescence from π-π* excited 8-methoxypsoralen markedly depend on solvent polarity. A possible energy diagram of 8-methoxypsoralen was discussed.
CYCLIZATION OF POLYENES XXIV. EFFECTIVE CONSTRUCTION OF ALBOCEROL SKELETON BY INTRAMOLECULAR ACYLATION OF GERANYLFARNESIC ACID CHLORIDE
Authors: Kato Tadahiro , Suzuki Masanobu , Nakazima Yoshito , Shimizu Kaoru , Kitahara Yoshio 
Published: July 2006

Abstract
Albocerol skeleton (VI) was constructed effectively by intramolecular acylation of geranylfarnesic acid chloride (V). VI was converted to XIII, an analogue of the termite trail pheromone, neocembrene (XII). XIII showed the termite trail pheromone activity.
THE TRANSYLIDATION REACTION OF A SELENONIUM YLIDE WITH SULFIDES
Authors: Tamagaki Seizo , Tamura Katsuyuki , Kozuka Seizi 
Published: July 2006

Abstract
Several dialkylsulfonium ylides were obtained almost quantitatively by the transylidation reaction of dibenzylselenonium cyano(methoxycarbonyl)methylide with alkyl sulfides in the presence of CS2.
NON-CARBONIUM ION CHARACTER OF THE INTERMEDIATE IN THE PUMMERER REACTION OF PHENYLSULFINYLCYCLOPROPANES AND (PHENYLSULFINYLMETHYL)CYCLOPROPANE WITH ACETIC ANHYDRIDE
Authors: Masuda Toshiaki , Numata Tatsuo , Furukawa Naomichi , Oae Shigeru 
Published: July 2006

Abstract
The Pummerer reaction of phenylsulfinylcyclopropanes and (phenylsulfinylmethyl)cyclopropane with acetic anhydride afforded 1-acetoxy-1-(phenylmercapto)cyclopropanes and (α-acetoxyphenylmercaptomethy1)cyclopropane in high yields unlike in the acetolysis of 1-chloro-1-(phenylmercapto)cyclopropanes. Thus, the Pummerer reaction is considered to proceed via an ylide-ylene-ion pair.
THE FACILE SYNTHESIS OF MACROCYCLIC LACTONES BY THE USE OF 2-CHLORO-3-METHOXYMETHYL-1-METHYLPYRIDINIUM IODIDE
Authors: Narasaka Koichi , Masui Takashi , Mukaiyama Teruaki 
Published: July 2006

Abstract
Long chain ω-hydroxycarboxylic acids cyclize to the corresponding lactones in good yields by the treatment with 2-chloro-3-methoxymethyl-1-methylpyridinium iodide (2) and triethylamine in refluxing methylene chloride.
PARTIAL PURIFICATION OF CHLOROPHYLL EXTRACTED FROM SPINACH LEAVES BEFORE CHROMATOGRAPHIC SEPARATION AND ISOLATION
Authors: Iriyama Keiji , Shiraki Masaru , Yoshiura Masahiko 
Published: July 2006

Abstract
An effective method for partial purification of chlorophylls using dioxane and washing with 80% (v/v) aqueous methanol before chromatography was studied for the preparative purpose. The chromatographic analysis revealed that the preparation of chlorophylls thus obtained did not contain any leaf yellow pigments which disturbed the isolation of chlorophylls a and b from one another in column chromatography.
REACTION OF HEPTAFLUORO-1-METHYLETHYLZINC IODIDE WITH HALIDES AND ANHYDRIDES OF CARBOXYLIC ACIDS
Authors: Sekiya Akira , Ishikawa Nobuo 
Published: July 2006

Abstract
The reactions of heptafluoro-1-methylethylzinc iodide (1) with fluorides or anhydrides of carboxylic acids were smoothly induced in the presence of pyridine, and aryl or alkyl heptafluoro-1-methylethyl ketones were obtained in good yields. Although the reactivities of benzoyl halides in this reaction were in the order PhCOF&gt; PhCOCl&gt; PhCOBr, benzoyl chloride reacted with 1 smoothly in the presence of zinc fluoride, which converted benzoyl chloride to fluoride in situ.
CHARGE-TRANSFER COMPLEXES OF SOME CHLOROCARBON KETONES
Authors: Matsukura Takefumi , Mano Koichi , Fujino Akira 
Published: July 2006

Abstract
The reactions of five chlorocarbon ketones with N,N,N′,N′-tetramethyl-p-phenylenediamine or N,N-dimethylaniline were examined. Two of them afforded stable outer complexes with the former amine, while the rests gave very unstable complexes only evidenced by their CT-bands. Substituted products were only obtained in the reactions of all the ketones with the latter.
A NEW TYPE OF AN ION-SELECTIVE ELECTRODE BASED ON AN ANION EXCHANGE RESIN WITH A HYDROPHOBIC SITE
Authors: Jyo Akinori , Imato Toshihiko , Fukamachi Kazumi , Ishibashi Nobuhiko 
Published: July 2006

Abstract
A new type of an anion-selective electrode has been developed. The sensitive membrane of the electrode is an anion exchange resin impregnated with nitrobenzene. The exchange site of the anion exchange resin is a hydrophobic quaternary ammonium group with a long alkyl chain. The performance of the electrode was comparable to that of usual or commercial liquid anion exchanger membrane electrodes.
CYCLIZATION OF POLYENES XXV. CONFORMATIONAL STUDY OF CEMBRENE TYPE DITERPENES BY X-RAY ANALYSIS
Authors: Kato Tadahiro , Kabuto Chizuko , Kim Keu Hong , Takayanagi Hisao , Uyehara Tadao , Kitahara Yoshio 
Published: July 2006

Abstract
An X-ray crystallographic analysis of 15,16-dehydro epimukulol acetate has revealed that the exact stereostructure is indicated in figure 1, which can be depicted on the modified diamond lattice conformation model as shown in figure 2.
PREPARATION OF CATIONIC DIALKYLCOBALT COMPLEXES [CoR2(bpy)2][AlR4] (R = CH3, C2H5) BY THE REACTIONS OF Co(acac)3 WITH TRIALKYLALUMINUMS IN THE PRESENCE OF 2,2′-BIPYRIDINE
Authors: Yamamoto Takakazu , Bundo Motonori , Yamamoto Akio 
Published: July 2006

Abstract
Stable cationic dialkylcobalt complexes of composition [CoR2(bpy)2][AlR4] (R = CH3, C2H5) were obtained in high yields from mixtures of Co(acac)3, 2,2′-bipyridine (bpy), and trialkylaluminums (Al/Co &gt; 7). Ion exchange reactions of the complexes with Na [B(C6H5)4] afforded [CoR2(bpy)2][B(C6H5)4]·(H2O)n (R: CH3, n=1; C2H5, n=0). Reactions of [CoR2(bpy)2][AlR4] with CH2Cl2 gave [CoR2(bpy)2]Cl·CH2Cl2.
AZAFULVENES 6. CYCLOADDITION REACTION OF 8-AZAHEPTAFULVENE TO ISOCYANATE AND ISOTHIOCYANATE
Authors: Yamamoto Kikuo , Kajigaeshi Shoji , Kanemasa Shuji 
Published: July 2006

Abstract
Eight-alkyl- and 8-aryl-8-azaheptafulvenes, generated in situ or isolated by treatment of the 8-azaheptafulvenium fluoroborates with base, reacted with phenyl, methyl, benzoyl and thiobenzoyl isocyanate to give the corresponding [8+2] cycloadducts, 1,2,3,3a-tetrahydrocyclohept[d]imidazol-2-one derivatives, in good yields. The similar reactions with phenyl and methyl isothiocyanate afforded the different type of cycloadducts, 2-imino-8aH-2,3-dihydrocyclohept[d]thiazoles, which were taken to be derived from addition of the C=S bond in isothiocyanates across the 8π system in 8-azaheptafulvenes. On the other hand, with benzoyl isothiocyanate 8-azaheptafulvenes gave the [8+4] cycloadducts, 10aH-4,5-dihydrocyclohept[f][1,3,5]oxadiazepine-4-thiones, in quantitative yields.
CYCLOADDITION REACTION OF 8-ARYL-8-AZAHEPTAFULVENE TO ACETYLENEDICARBOXYLATE
Authors: Sanechika Ken-ichi , Kajigaeshi Shoji , Kanemasa Shuji 
Published: July 2006

Abstract
The [8+2] cycloaddition reaction of 8-aryl-8-azaheptafulvene to acetylenedicarboxylate, followed by hydrogen shifts or a rearrangement via intramolecular cyclic reaction, yielded 1,4-dihydro-1-azaazulene, 1,6-dihydro-1-azaazulene and 1,2-dihydroquinoline derivative. This reaction was extremely affected by the polarity of solvent.
POLYMORPHISM AND PHASE TRANSITIONS IN A FAMILY OF ORGANIC CONDUCTORS
Authors: Murakami Mutsuaki , Yoshimura Susumu 
Published: July 2006

Abstract
We found that the substituted pyridinium-TCNQ complex salts exhibited a variety of polymorphs and first-order phase transitions. The irreversible transition was correlated to the appearance of polymorphism and nonstoichiometry. The reversible transition manifested itself for specific cations; N-n-propylpyridinium(TCNQ)X and N-n-butylpyridinium(TCNQ)X.
BIOSYNTHESIS OF CYCLIC MONOTERPENES IN HIGHER PLANTS. THE RETENTION OF THE C-5 HYDROGEN ATOMS OF MEVALONATE DURING ITS INCORPORATION INTO THE CYCLIC MONOTERPENES
Authors: Suga Takayuki , Shishibori Tsuyoshi , Hirata Toshifumi 
Published: July 2006

Abstract
The 3H/14C ratio of [5-3H2, 2- 14C]mevalonate was preserved in limonene, perillaldehyde, and camphor biosynthesized by higher plants from the mevalonate. This indicates that the cyclic monoterpenes are biosynthesized through such a pathway that involves the cyclization of such an intermediate as retaining all the C-1 and C-5 tritium atoms of geranyl pyrophosphate derived from the mevalonate.
PHOTOSENSITIZED OXYGENATION OF ALDEHYDE–AMINE MIXTURE. FACILE CARBONYL TRANSFORMATION FROM ALDEHYDE TO AMINE INVOLVING RECYCLIZATION PROCESS
Authors: Ando Wataru , Watanabe Kazuo 
Published: July 2006

Abstract
Photosensitized oxygenation of mixture of various aldehydes and morpholine(piperidine) gave N-formylmorpholine(N-formylpiperidine). When long chain non-branched aldehydes were used, the N-formylamine was obtained in more than 100% yield on the basis of aldehyde. This effective carbonyl transfer to amine includes reproduction of aldehyde.
ANODIC OXIDATION OF E- AND Z-ISOEUGENOL
Authors: Iguchi Masanobu , Nishiyama Atsuko , Hara Masami , Terada Yukimasa , Yamamura Shosuke 
Published: July 2006

Abstract
Anodic oxidation of E- and Z-isoeugenol (1 and 2) in MeOH was carried out at a controlled potential of +800 mV vs SCE, using an undivided cell, to afford oxidation products (3, 4, 5, 6, 7, 8, and 9 from 1; 3, 4, 5, 6, 10, 11, and 12 from 2).
Similar treatment of a mixture of Z-isoeugenol (2) and 2,6-dimethoxy-4-allylphenol (13) gave the arylpropanoid (14).
SYNTHESIS OF BENZANNELATED TRISDEHYDRO[10.10.2][14]ANNULENO[14]ANNULENES
Authors: Sakano Koichi , Akiyama Shuzo , Iyoda Masahiko , Nakagawa Masazumi 
Published: July 2006

Abstract
Our recent studies seem to indicate that annulenoannulenes consisting of two same size nuclei should be fused systems of two diatropic moieties. In order to obtain further information on the nature of annulenoannulene, the synthesis of dibenzo- and benzotrisdehydro[14]annuleno[14]annulenes has been performed.
THE LOSS OF CO2 IN EPOXYCHRYSANTHENONE UNDER ELECTRON IMPACT
Authors: Eguchi Shizuko , Uchio Yasuto , Matsuo Akihiko , Nakayama Mitsuru , Hayashi Shûichi 
Published: July 2006

Abstract
Mass spectra of four kinds of bicyclic β,γ-epoxyketones containing gem-dimethyl group were examined. Epoxyvulgarone A and epoxychrysanthenone showed characteristic [M-C2H3O]+ and [M-CO2]\underset.+ ions, while the remaining epoxyketones were abundant only in the [M-C2H3O]+ ion. The ion kinetic energy-defocusing technique revealed that the loss of CO2 from the molecular ion occurs via a lactone type intermediate.
NEW RING OPENING REACTIONS OF THREE MEMBERED HETEROCYCLES, OXIRANES, AZIRIDINES, AND THIIRANES, WITH PHENYL ACETATE
Authors: Funahashi Kazutoshi 
Published: July 2006

Abstract
The reactions of oxirane, aziridine or thiirane with phenyl acetate in the presence of bases such as pyridine, 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU), and tributylamine afford 2-phenoxyethyl acetate, N-(2-phenoxyethyl)acetamide or S-(2-phenoxyethyl) thioacetate, respectively.
HIGHLY SELECTIVE ISOMERIZATION OF PENTANE WITH AlBr3-METAL SULFATE MIXTURES
Authors: Ono Yoshio , Sakuma Shigeharu , Tanabe Tadashi , Kitajima Nobumasa 
Published: July 2006

Abstract
The mixtures of aluminum bromide and metal sulfate are found to be highly active and highly selective catalysts for the conversion of pentane to isopentane. For example, when 10 ml of pentane was shaked with the equimolar mixture of AlBr3 and Ti2(SO4)3 (7.5 mmol each) at 28°C for 3 hr, isopentane was obtained in a 86% yield with the selectivity of &gt; 99%.
CONCERTED CYCLIZATION OF 4,8-DIMETHYLNONA-3,7-DIENOIC ACID (HOMOGERANIC ACID) TO TRANS-HEXAHYDRO-4,4,7a-TRIMETHYL-2(3H)BENZOFURANONE (TRANS-TETRAHYDROACTINIDIOLIDE)
Authors: Saito Akira , Matsushita Hajime , Tsujino Yasuko , Kisaki Takuro , Kato Kunio , Noguchi Masao 
Published: July 2006

Abstract
Cyclization of 4,8-dimethylnona-3,7-dienoic acid (homogeranic acid) in the presence of stannic chloride was studied under various conditions. Cyclization product obtained comprises 88 per cent trans- and 12 per cent cis-hexahydro-4,4,7a-trimethyl-2(3H)benzofuranone (trans- and cis-tetrahydroactinidiolide). Other products, such as monocyclic compounds, could not be detected in the reaction mixture. Isomerization of the trans isomer to the cis isomer in the presence of stannic chloride was also observed. It may be concluded that the cyclization reaction proceeds by a concerted mechanism.
A NEW METABOLIC REACTION OF NITROGEN MUSTARDS
Authors: Hata Yoshiteru , Watanabe Masamichi , Matsubara Takashi , Touchi Akira 
Published: July 2006

Abstract
We studied the substituent effect on the metabolism of ortho-, meta- and para-alkoxyaniline mustards. Surprisingly, very high yields of N-chloroethylaniline derivatives from the dechloroethylation reaction of para-alkoxyaniline mustards were obtained. N-2-Chloroethylaniline derivatives converted spontaneously into aziridines in microsomal solution.
The order of the reaction rate of mustards in microsomal solution had a good parallel relationship with that of the antitumor activity of corresponding aniline mustards.
THE DEVELOPMENT OF CATALYSTS FOR SIMULTANEOUS CONTROL OF NOx AND SOx IN FLUE GASES
Authors: Sato Toshio , Todo Naoyuki , Kurita Minoru , Hagiwara Hiroyuki , Ueno Akifumi , Nishijima Akio , Kiyozumi Yoshimichi 
Published: July 2006

Abstract
A technique to remove simultaneously NOx and SOx from flue gases of stationary sources was investigated based on the principle that NOx could be reduced by NH3 over a catalyst while SOx removed by forming the sulfate. Of all the oxides employed as catalysts, Mn2O3 was proved to be effective for the removal of SOx . The catalytic activity of Mn2O3 for the NOx reduction was improved by additition of Co3O4. The way of preparing the mixed catalyst in the optimum ratio was developed for the simultaneous removal of NOx and SOx.
A NEW COMPOUND OF δ-MnO2 FAMILY; δ-MnO2(II)
Authors: Yamamoto Naoichi , Higashi Shin-nosuke 
Published: July 2006

Abstract
Black precipitate of so-called δ-MnO2 was found usually to be a mixture of two different kind of compounds (δ-MnO2(I) and δ-MnO2(II)). Crystallographic conversion took place between these compounds in the presence of their mother liquid.
KINETIC ELUCIDATION OF GAS CHROMATOGRAPHIC PEAKS OF LEADING AND TRAILING SHAPES
Authors: Takeuchi Koji , Kambara Tomihito 
Published: July 2006

Abstract
In general one observes a gas chromatographic peak of leading type at lower temperature and trailing shape at higher temperature. This fact is attributable to the slowness of vaporization and dis-solution rate in the partition process. A mathematical treatment of the kinetics of nonequilibrium partition was developed and the theoretical prediction could clearly elucidate the asymmetric shapes observed at inadequate column temperatures.
ADVANTAGES OF USING DI(p-METHYLBENZYL) HYDROGEN PHOSPHITE IN SYNTHESIS OF AMINOPHOSPHONATES FROM ALDIMINES
Authors: Lukszo Jan , Kowalik Janusz , Mastalerz Przemyslaw 
Published: July 2006

Abstract
Aminophosphonic acids containing groups sensitive to hydrolysis and hydrogenation are obtained easily from aldimines by addition of di(p-methylbenzyl) hydrogen phosphite followed by selective removal of p-methylbenzyl groups by solvolysis with formic acid. Properly chosen substituens at nitrogen are also removed under these conditions and the synthesis of aminophosphonic acids with a free NH2 group was achieved by a two-step procedure.
SUPEROXIDE ION CHEMISTRY. REACTION OF SUPEROXIDE ION WITH 2,4,6-TRISUBSTITUTED PYRYLIUM TETRAFLUOROBORATES
Authors: Kobayashi Shohei , Ando Wataru 
Published: July 2006

Abstract
The reactions between 2,4,6-trisubstituted pyrylium tetrafluoroborates with superoxide ion were studied. Three main products, 3,5-disubstituted-2 (3H) -furanone (2), 3-acyl-3, 5-disubstituted-2 (3H)-furanone (3), and 2-acyl-3, 5-disubstituted furan (4), were obtained.
REDUCTION OF INACTIVATED CARBONYL COMPOUNDS BY 1,5-DIHYDROPYRIMIDO[4,5-b]QUINOLINE-2,4(3H,10H)-DIONE (1,5-DIHYDRO-5-DEAZAFLAVIN)
Authors: Yoneda Fumio , Sakuma Yoshiharu , Nitta Yoshihiro 
Published: July 2006

Abstract
1,5-Dihydropyrimido[4,5-b]quinoline-2,4(3H,10H)-dione (1,5-dihydro-5-deazaflavin) reduced inactivated carbonyl compounds in acetic acid in the presence of hydrochloric acid to yield the corresponding alcohols which were identified as their acetates, while 1,5-dihydro-5-deazaflavin itself was oxidized to 5-deazaflavin.
STRUCTURE REVISION AND BIOGENETIC RELATIONSHIP OF AUBERGENONE, A SESQUITERPENOID PHYTOALEXIN OF EGGPLANTS
Authors: Murai Akio , Abiko Atsushi , Ono Mitsunori , Katsui Nobukatsu , Masamune Tadashi 
Published: July 2006

Abstract
Evidence is presented for structure revision of aubergenone, isolated from diseased eggplants and qualified as a phytoalexin, to 11-hydroxy-4α,5α-eudesm-1-en-3-one (1). A biogenetic pathway to representative stress metabolites of the Solanaceae plants, including aubergenone and rishitinol, is also proposed.
ELECTRIC DIPOLE MOMENT OF 2,4-DI-t-BUTYL-6-METHYL-N-THIOSULFINYLANILINE
Authors: Inagaki Yoshio , Okazaki Renji , Inamoto Naoki , Shimozawa Takashi 
Published: July 2006

Abstract
Electric dipole moments of the title compound and the corresponding sulfinyl and bromo compounds have been determined to be 1.51,2.05, and 1.63 D respectively. From estimated bond moments of S=S (2.60 D) and N=S (0.55 D), charge separation of the N=S=S group has been found to be about half that of the N=S=O group.
A CONVENIENT ROUTE TO 4-ALKYLAMINOMETHYLINDOLE DERIVATIVES
Authors: Somei Masanori , Yamada Fumio , Kaneko Chikara 
Published: July 2006

Abstract
A facile four step synthesis of 4-[N,N-disubstituted]aminomethylindoles 5a–5c from 2-methyl-5-nitroisoquinolinium iodide 1 was described. In the course of the conversion, the mechanism of Hofmann degradation reaction of 2-substituted 2-methyl-5-nitroisoquinolinium salts 3a–3d was discussed.
PREPARATION OF Ca[CrNCS(edta)] BY THE USE OF SOLID-PHASE THERMAL REACTION OF [CrNCS(NH3)5][Ca(edta)]·5H2O
Authors: Tsuchiya Ryokichi , Uemori Yoshio , Uehara Akira , Kyuno Eishin 
Published: July 2006

Abstract
[CrNCS(NH3)5][Ca(edta)]·5H2O was prepared by the reaction of [CrNCS(NH3)5]Cl2 with Na2[Ca(edta)]·3.5H2O. The thermal reaction of the complex in the solid-phase was investigated both nonisothermally and isothermally. It was found that the complex was finally converted into Ca[CrNCS(edta)] upon heating in the solid-phase, which was purified from water as the hexahydrate.
RING CLOSURE REACTION AND MECHANISM OF 3-ALKOXY-2-(2-BENZAMIDOPHENYL) ACRYLATES TO 3-(α-ALKOXYMETHYLENE) OXINDOLES
Authors: Kaneko Chikara , Fujii Harue , Kawai Shinji , Somei Masanori 
Published: July 2006

Abstract
Treatment of the E- and Z-isomers of methyl 3-methoxy-2-(2-benzamidophenyl)aerylate with sodium methoxide in methanol affords the E-isomer of 3-(α-methoxymethylene)oxindole as a common product. A plausible mechanism of the reaction involving 1-benzoyl-3-dimethoxymethyloxindole as a key intermediate is proposed.
ASYMMETRIC TRANSFORMATION OF ALANINE
Authors: Shibata Saizo , Matsushita Hajime , Noguchi Masao , Saburi Masahiko , Yoshikawa Sadao 
Published: July 2006

Abstract
Hydrolysis of an imidazoline derived from (S)-alanine and (S)-aminomethylpyrrolidine afforded (R)-alanine in the optical yield of 93.8 % (e.e.). When the same procedure was applied to (R)-alanine, (R)-alanine (93.2 % e.e.) was obtained. This fact confirms that the asymmetric transformation does not proceed with inversion. Asymmetric transformation of alanine via other imidazolines was also examined.
REACTION OF BENZYLIC AND ALLYLIC HALIDES WITH IRON-CARBONYL CLUSTERS
Authors: Nakanishi Saburo , Oda Toshio , Ueda Tatsuo , Otsuji Yoshio 
Published: July 2006

Abstract
The reaction of p-substituted benzyl chlorides [1] with Fe3(CO)12 in benzene gave p-substituted diphenylmethanes [3] as a major product. However, the reaction of [1] with the Fe3(CO)12-pyridine N-oxide (PyNO) reagent system selectively afforded 1,2-diphenylethane derivatives [2]. Allylic halides [5] reacted with Fe3(CO)12 in benzene to give a mixture of three products including 1,5-hexadiene derivatives [7]. While, treatment of [5] with the Fe3(CO)12-PyNO reagent system led to a selective formation of [7]. The role of PyNO in the above reagent system is discussed.