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Volume 4, Issue 1
Displaying 1-28 of 28 articles from this issue
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Yoshimitsu Kobayashi, Niro Matsuura, Antonio Indelli1975 Volume 4 Issue 1 Pages 1-3
Published: January 05, 1975
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESSThe single crystal of K3P3O9 was irradiated by gamma-rays at room temperature. The pink colored crystal (absorption maximum at around 500 nm and esr spectrum with g=2.01 and a coupling constant of 36G.) was dissolved in aqueous iodide solutions and the liberated iodine was quantitatively measured. From the product analysis, the initial G values were determined as G(P4+) = G(P6+) = 0.27±0.05 at 20°C.View full abstract -
Chiho Nishijima, Hiroaki Nakayama, Tsunetoshi Kobayashi, Katsuyuki Yok ...1975 Volume 4 Issue 1 Pages 5-8
Published: January 05, 1975
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESSThe photoelectron spectrum (PES) of malonaldehyde was measured and assigned in comparison with those of acetylacetone, trifluoroacetylacetone, and hexafluoroacetylacetone. The first and the second bands of malonaldehyde were attributed to the ionizations from the b2π and the b1n orbitals, respectively, on the basis of the methyl and trifluoromethyl substituent effects and the PES result of acetylacetone.View full abstract -
Hitoshi Taniguchi, Hiroyuki Hatano1975 Volume 4 Issue 1 Pages 9-12
Published: January 05, 1975
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESSShort-lived radicals of dipeptides and nucleic bases and additional hydrogen atom formed in γ-irradiated aqueous solutions are trapped with 2-methyl-2-nitrosopropane and structures of these radicals are identified. The line width of spin adduct radical with higher molecular weight possibly gives information about the local dynamic structure around the radical center.View full abstract -
Akira Fujishima, Tadashi Watanabe, Osamu Tatsuoki, Kenichi Honda1975 Volume 4 Issue 1 Pages 13-18
Published: January 05, 1975
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESSThe 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.View full abstract -
Yozo Miura, Yuzo Morimoto, Masayoshi Kinoshita1975 Volume 4 Issue 1 Pages 19-20
Published: January 05, 1975
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESSReactions 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.View full abstract -
Toshikazu Ibata, Masashi Hamaguchi, Hideo Kiyohara1975 Volume 4 Issue 1 Pages 21-24
Published: January 05, 1975
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESSThe reaction of anhydro-4-hydroxy-1,3-oxazolium hydroxide (3) with acetylenic dipolarophiles gave 1,3-dipolar cycloadducts (4) along with furans (5). On heating above 80°C, most cycloadducts decomposed to the corresponding furans under release of methyl isocyanate.View full abstract -
Norisuke Hata, Isao Ono, Masao Kawasaki1975 Volume 4 Issue 1 Pages 25-28
Published: January 05, 1975
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESSThe azanaphthalene N-oxides underwent the photochemical deoxygenation reaction in benzene containing BF3-etherate, resulting in the formation of the parent amines in a 70–80% yield. The triplet sensitizations of quinoline-, isoquinoline-, and acridine-N-oxides by biacetyl or eosin also led to the dissociation of the N–O bond.View full abstract -
Tetsuo Aida, Naomichi Furukawa, Shigeru Oae1975 Volume 4 Issue 1 Pages 29-32
Published: January 05, 1975
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESSAlkyl phenyl N-p-tosylsulfilimine and triphenylphosphine reacted with various carboxylic acids affording their anhydrides. The reaction was successfully extended to an ester- or amide-condensation reaction. These results can be interpreted by the initial formation of a 1,3-dipole between the sulfilimine and the phosphine.View full abstract -
Yoshinao Oosawa, Takeshi Miyamoto, Taro Saito, Yukiyoshi Sasaki1975 Volume 4 Issue 1 Pages 33-34
Published: January 05, 1975
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESSA new type bidentate phosphorus ylid, benzoylmethylenediphenyl-2-diphenylphosphinoethylphosphorane (L) and its complexes MCl2(L) (M = Pd and Pt) have been synthesized and characterized.View full abstract -
Kiyoshi Isobe, Shun’ichiro Ooi, Yukio Nakamura, Shinichi Kawaguc ...1975 Volume 4 Issue 1 Pages 35-38
Published: January 05, 1975
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESSThe reaction of oxobis(acetylacetonato)vanadium(IV) with 1,10-phenanthroline in methylene chloride under aerobic conditions afforded diamagnetic dioxo(acetylacetonato)(1,10-phenanthroline)vanadium(V). The cis configuration of this compound was concluded on the basis of IR and Raman data, and confirmed by the single crystal X-ray analysis. The geometry of this mixed ligand complex is a distorted octahedron. The V-O(oxide anion) distances are 1.613(4) and 1.670(5)Å, the O-V-O angle being 105.5(2)°. The appreciable trans influence of the oxide anion is reflected on the V-N and V-O(acetylacetonate) distances.View full abstract -
Kunio Mori, Tsutomu Mizoroki, Atsumu Ozaki1975 Volume 4 Issue 1 Pages 39-42
Published: January 05, 1975
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESSPalladium-black is a highly active catalyst in the presence of hydrogen iodide in methanol for α-monocarbonylation of phenylacetylene, methylacetylene, and acetylene to give methyl atropate, methyl methacrylate, and methyl acrylate respectively. Triphenylphosphine or triphenylarsine added to the reaction mixture increases the selectivity to β-carbonylated products.View full abstract -
Mitsuo Takasugi, Youichi Yachida, Masaki Anetai, Tadashi Masamune, Kaz ...1975 Volume 4 Issue 1 Pages 43-44
Published: January 05, 1975
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESSA nematicidal constituent, present at least at 35 ppm, was isolated from the roots of asparagus and identified as asparagusic acid, which has also been reported to exist in the edible part of the plant. The acid was toxic to several plant parasitic nematodes and would be a major factor in resistance of asparagus.View full abstract -
Kenichi Somekawa, Tetsuro Shimou, Kazunori Tanaka, Sanetada Kumamoto1975 Volume 4 Issue 1 Pages 45-46
Published: January 05, 1975
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESSIrradiation of mixtures of 2-pyridones and cyanoethylenes gave a novel type of adducts, 3-cyano-1,2,3,4-tetrahydro-azocin-2-ones, and [2+2]cycloadducts. 2-Pyridones used were 2-pyridone, 4-methyl-2-pyridone, and N-methyl-2-pyridone, and cyanoethylenes used were acrylonitrile, crotononitrile. and methacrylonitrile. The structures of these photoadducts were mainly determined by PMR and mass spectra.View full abstract -
Masashi Ogawa, Tsutomu Matsuda1975 Volume 4 Issue 1 Pages 47-50
Published: January 05, 1975
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESSPiperidine reacts with 2,4,6-cyclooctatrien-1-one(1) to give 8-piperidino-3,5,7-octatrien-2-one and acetophenone. When pyrrolidine and morpholine were used the corresponding 8-amino ketones were produced. Deuterium insertion study of 1 with N-deuteriopiperidine suggests that in DMSO the ring cleavage proceeds by initial addition of piperidine at the C(7) and C(2) carbons (2,7-addition) followed by subsequent fission of C(7)–C(8) bond of 1.View full abstract -
Joachim Firl, Wolfgang Runge, Werner Hartmann, Hans-Peter Utikal1975 Volume 4 Issue 1 Pages 51-54
Published: January 05, 1975
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESS13C-NMR spectra of a series of substituted ketenimines are reported. The terminal carbon resonances are found at unusual high fields between δ 37 and 78, while the central carbon signals appear around δ 189–196. On the basis of these results, the bonding situation in ketenimines has been discussed.View full abstract -
Mitsuru Nakayama, Shûichi Hayashi, Masao Tsukayama, Tokunaru Hor ...1975 Volume 4 Issue 1 Pages 55-56
Published: January 05, 1975
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESSA linear-type carboxyethyl pyronochromanone derivative (V), after being converted into methyl ester-methyl ether (VI), was reduced with sodium borohydride to give methyl eriostate (VII). Hydrolysis of the ester (VII) with alkari afforded eriostoic acid (I). Eriostemoic acid (II) was also synthesized from an angular-type pyronochromanone derivative (IV) in a similar manner.View full abstract -
Yoshinori Yamamoto, Ichiro Moritani1975 Volume 4 Issue 1 Pages 57-58
Published: January 05, 1975
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESSThe strong deshieldlng of the β-carbon atom in the 13C NMR spectra of α,β-unsaturated alkenylboranes supports the presence of π-character in the B–C bond.View full abstract -
Hiroshi Masuhara, Yuichi Tohgo, Noboru Mataga1975 Volume 4 Issue 1 Pages 59-62
Published: January 05, 1975
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESSThe fluorescence quenching mechanisms of carbazole in acetonitrile were studied in detail by the laser photolysis method. Proton transfer and hydrogen atom transfer in the excited state were observed in the case of the triethylamine quencher, while ionic photodissociation due to electron transfer was confirmed in the case of the N,N-dimethylaniline quencher. However, no transient was detected in the case of the quenching by pyridine.View full abstract -
Keishi Kato, Tadaaki Fujimoto, Hideaki Kodera, Hiroshi Mikawa1975 Volume 4 Issue 1 Pages 63-66
Published: January 05, 1975
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESSThe space-charge-limited currents in poly-N-vinylcarbazole films were investigated with the use of electrolytic solutions such as Ag2+ in 7.5N HNO3, NaI solution saturated with iodine, and Ce4+ in 15N H2SO4. These oxidizing solutions are suitable hole-injecting electrodes. The current-voltage characteristic indicates the existence of exponentially-distributed traps, the concentration of which is about 5×1018cm−3.View full abstract -
Ken-ichi Watanabe, Koji Kidokoro1975 Volume 4 Issue 1 Pages 67-70
Published: January 05, 1975
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESSMetal chelate catalyzed alcoholysis of pyridinecarbonitriles revealed that the reaction products are alkyl pyridinecarboximidates. The use of copper(II) complexes containing one molecular amine gave good results. The reactivities of alcohols were in the order: methanol> ethanol> butanol> isopropyl alcohol. Cu(II), Ni(II), and Co(II) salts were also effective for the reactions.View full abstract -
Noboru Morita, Toyonobu Asao1975 Volume 4 Issue 1 Pages 71-74
Published: January 05, 1975
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESSPhenafulvenes substituted at 10-positions with methyl and/or chloro groups have been synthesized in good yields by the reaction of phenalenone with methyl and/or chloro ketenes. Oxygenations of 10,10-dimethyl- and 10,10-diphenylphenafulvenes afforded epidioxides and cleavage of the oxides gave 8-substituted phenalenones. Diels–Alder reactions of 10,10-dimethylphenafulvene yielded the corresponding adducts at C-8 and C-10 positions.View full abstract -
Richard E. Bozak, Anthony D. Barone1975 Volume 4 Issue 1 Pages 75-76
Published: January 05, 1975
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESSCymantrene is found to incorporate into a ferrocene clathrate of thiourea. Inclusion of cymantrene in the absence of ferrocene does not occur. A novel proof of clathration is demonstrated utilizing photochemical decarbonylation.View full abstract -
Fujio Izumi, Yoshinori Fujiki1975 Volume 4 Issue 1 Pages 77-78
Published: January 05, 1975
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESSAnatase crystals were grown hydrothermally using KF–K2HPO4 solutions. Only rutile was formed in KF solution, whereas the addition of K2HPO4 was effective in crystallizing anatase over a wide range of temperature and pressure. Some properties and the morphological features of the synthetic anatase are described.View full abstract -
Yuzo Nishida, Shuhei Oshio, Sigeo Kida1975 Volume 4 Issue 1 Pages 79-80
Published: January 05, 1975
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESSIron(III) complexes with several tetradentate Schiff Bases [FeLXY]n+ and [Fe salen CN] were synthesized, where L is a tetradentate Schiff Base including salen = NN′-ethylenebis(salicylideneiminate), X and Y represent imidazole and cyanide ion. Magnetic susceptibilities and ESR spectra were measured for these complexes from liquid nitrogen to room temperatures. The results have revealed that those complexes consist of four types in view of the spin states, that is high-spin (S = 5/2), low-spin (S = 1/2), intermediate (S = 3/2) and spin-equilibrium (S = 1/2 \ ightleftarrowsS = 5/2) states.View full abstract -
Kiichiro Kamata, Tetsuro Nakamura, Toshiyuki Sata1975 Volume 4 Issue 1 Pages 81-86
Published: January 05, 1975
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESSPolycrystalline CaMoO3 was prepared by a new method making use of the oxygen stability range, and revealed to have an orthorhombic lattice (a=5.448Å, b=7.776Å, c=5.582Å), metallic conduction and Pauli paramagnetism. The results indicate that 4d2 electrons of Mo4+ are delocalized in CaMoO3 as same as those in BaMoO3 and SrMoO3.View full abstract -
Kazuhiro Maruyama, Tetsuo Otsuki1975 Volume 4 Issue 1 Pages 87-88
Published: January 05, 1975
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESS5-Aryl-7,12-benz[a]anthraquinone derivatives (6) was obtained in good yields in the photochemical reaction of 2-alkoxy-3-bromo-1,4-naphthoquinone with 1,1-diarylethylene.View full abstract -
Michiko Yasuda1975 Volume 4 Issue 1 Pages 89-90
Published: January 05, 1975
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESSIn the presence of aniline catalyst, acetoacetic acid(I) reacted smoothly with 2-cyclohexen-1-one(II) to give 3-acetonylcyclohexan-1-one(III) at room temperature, with evolution of carbon dioxide. Similarly the reaction between 2-oxocyclohexane-1-carboxylic acid(IV) and II gave the analogous decarboxylative condensation product, bicyclohexyl-2,3′-dione(V).View full abstract -
Hubertus Ahlbrecht, Günter Papke1975 Volume 4 Issue 1 Pages 91-92
Published: January 05, 1975
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESSDie Darstellung von 15N-markiertem Diphenylamin (2) und iso-Butenylanilin (3) wird beschrieben. Vergleich der 1J15NH -Kopplung zeigt, daß der Einfluß einer Vinylgruppe und eines Phenylkerns auf einen Anilinstickstoff sehr ähnlich ist und in beiden Fällen zu einer starken Einebnung der Stickstoffpyramide führt.View full abstract
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