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Volume 1, Issue 5
Displaying 1-23 of 23 articles from this issue
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Kazumi Nakatsu, Hiroshi Yoshioka, Takao Aoki1972 Volume 1 Issue 5 Pages 339-340
Published: May 05, 1972
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESSThe crystal structure of the title compound was determined by X-ray analysis. The dye ion has approximately Cs symmetry. The short S…S distance(2.994 Å) implies a strong interaction between them. The cations are stacked on top of each other along the c-axis with the separation of about 3.5 Å.View full abstract -
Akihiko Matsuo, Mitsuru Nakayama, Shûichi Hayashi1972 Volume 1 Issue 5 Pages 341-342
Published: May 05, 1972
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESSDuring the course of the investigation on the chemical constituents of the liverwort, Bazzania pompeana, a new sesquiterpene phenol, δ-cuparenol, was isolated as a minor component. The evidence for the proposed structure (I) is described.View full abstract -
Tadatoshi Kubota, Kensuke Shima, Hiroshi Sakurai1972 Volume 1 Issue 5 Pages 343-346
Published: May 05, 1972
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESSIrradiation of benzophenone and norbornadiene in benzene gave adducts I, II, III and unknown IV.View full abstract -
Koichi Murai, Chikai Kimura1972 Volume 1 Issue 5 Pages 347-348
Published: May 05, 1972
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESSCompetitive and consecutive reaction of N,N,N′,N′-tetramethyl-α,ω-alkanediamines with butyl bromide was studied in propylene carbonate at different temperatures. The kinetic data have revealed the effects of the chain lengths of alkanediamines on the reaction.View full abstract -
Yuji Hayashi, Takeo Sakan, Ken Hirotsu, Akira Shimada1972 Volume 1 Issue 5 Pages 349-352
Published: May 05, 1972
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESSThe stereochemistry of nagilactone A and B was established by the spectral analyses and the X-ray method. The absolute configurations of both substances were also proposed.View full abstract -
Seiichiro Koda, Tsutomu Hikita1972 Volume 1 Issue 5 Pages 353-354
Published: May 05, 1972
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESSWe investigated the products of atomic oxygen reaction with ferrocene and nickelocene, comparing them with those of oxygen atom reaction with 1,3-cyclopentadiene. In the case of cyclopentadiene, important products were C4H6 isomers and in the case of metallocenes, vinylacetylene.View full abstract -
Masao Sakurai, Toshio Nakajima, Tsuyoshi Komatsu, Tsurutaro Nakagawa1972 Volume 1 Issue 5 Pages 355-360
Published: May 05, 1972
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESSThe apparent molal volumes of polyethylenimine hydrochloride and its low-molecular-weight analogues have been measured as a function of concentration at 25°C. The partial molal volume of monomer unit increases with increasing the molecular weight of the polysalts. This has been interpreted in terms of two types of the overlapping of the electrostrictional effect on water molecules.View full abstract -
Joseph Backes, Isao Masuda, Koichiro Shinra1972 Volume 1 Issue 5 Pages 361-364
Published: May 05, 1972
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESSIn a hydrazine hydrate/DMA solution CoCl2·6H2O and CH3C(NOH)C(NOH)–(CH2)10–C(NOH)C(NOH)CH3 were found to absorb up to 0.5 mole of CO per 1 mole of cobaltous ion to form a CO adduct which releases CO in air to give a Co(II)–tetraoxime complex. A Co(I)-tetraoxime intermediate is considered to be the reactive species toward CO.View full abstract -
Kazuto Takimoto, Katsuhide Kadota, Masaji Miura1972 Volume 1 Issue 5 Pages 365-366
Published: May 05, 1972
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESSA substitution reaction of the copper(II) complexes quite different from those in the basic solutions and on the silica-alumina surface was found on the calcium oxide surface. The reaction is due to the highly basic site, O2− ion on the surface.View full abstract -
Shigeo Senda, Kosaku Hirota1972 Volume 1 Issue 5 Pages 367-368
Published: May 05, 1972
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESS6-Hydrazinouracil derivatives were allowed to react with ketones or aldehydes to give 5,6-disubstituted 2,4-dioxo-1,2,3,4-tetrahydropyrrolo[2,3-d]pyrimidine derivatives. The mechanism for the formation of these compounds is presented.View full abstract -
Atsuyoshi Ohno, Noboru Kito1972 Volume 1 Issue 5 Pages 369-372
Published: May 05, 1972
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESSA charge-transfer intermediate has been detected, by ESR spectroscopy, for the reaction of thiobenzophenone with N-benzyl-1,4-dihydronicotinamide, a model of biological redox processes.View full abstract -
Kiyoshi Kondo, Noboru Sonoda, Shigeru Tsutsumi1972 Volume 1 Issue 5 Pages 373-374
Published: May 05, 1972
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESSCarbamates have been synthesized conveniently by the reaction of carbon monoxide with amine and alcohol by the use of selenium and triethylamine under mild conditions.View full abstract -
Yuji Hayashi, Mugio Nishizawa, Shigeyuki Harita, Takeo Sakan1972 Volume 1 Issue 5 Pages 375-378
Published: May 05, 1972
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESSThree sesquiterpenoid constituents were isolated from leaves of Hypolepis punctata Mett. and their structures, I, II and III, were established by the synthesis.View full abstract -
Rei Matsueda, Eiichi Kitazawa, Hiroshi Maruyama, Hidekuni Takahagi, Te ...1972 Volume 1 Issue 5 Pages 379-384
Published: May 05, 1972
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESSAn attachment of the first amino acid to the resin in solid phase method by oxidation-reduction condensation was investigated. Various amino acids and peptide fragments were attached to the hydroxymethyl resin and chain-lengthening of these aminoacyl resins with amino acids or peptide fragments was successfully achieved by the same procedure.View full abstract -
Minoru Imoto, Saburo Otsuka, Tatsuro Ouchi1972 Volume 1 Issue 5 Pages 385-388
Published: May 05, 1972
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESSThe system of cellulose, water and Cu(II)-ion can polymerize MMA through a radical mechanism. The rate of polymerization, Rp, is expressed by the equation,
Rp = k [Cellulose]n[MMA]1→0
The value of n decreases from 1.0 to 0.5 with the decrease of the degree of polymerization of the cellulose.View full abstract -
Masao Kawai, Keizo Naya1972 Volume 1 Issue 5 Pages 389-392
Published: May 05, 1972
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESSFukinone (I), a sesquiterpenic ketone containing a conjugated double bond in cisoid form, on photolysis in methanol solution gave methyl ester (III), stereoisomeric cyclobutanols (IVa and Va), and methyl ether (VI). Photolysis of pulegone (II), a monoterpenic analogue of I, afforded quite similar results.View full abstract -
Michio Kobayashi, Masatsugu Sekiguchi, Hiroshi Minato1972 Volume 1 Issue 5 Pages 393-396
Published: May 05, 1972
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESSm-Nitrobenzenesulfonyl peroxide has been photolyzed in nitrobenzene and benzonitrile. On the basis of the product analyses, the reactivity of the sulfonyloxy radical is discussed.View full abstract -
Jun-Ichi Isoya, Hidehiro Ishizuka, Akira Yamasaki, Shizuo Fujiwara1972 Volume 1 Issue 5 Pages 397-400
Published: May 05, 1972
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESSAn unstable paramagnetic Pb(III) hot ion was identified in γ-irradiated polycrystalline lead tetraacetate by ESR hyperfine spectrum of 207Pb isotope. ESR parameters are as follows: (gx, gy, gz)=(2.0063, 2.0077, 2.0035). (Ax/gxβ, Ay/gyβ, Az/gzβ)=(12819, 12827, 12854 (gauss)).View full abstract -
Kiyoshi Kondo, Noboru Sonoda, Kokichi Yoshida, Masafumi Koishi, Shiger ...1972 Volume 1 Issue 5 Pages 401-404
Published: May 05, 1972
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESSThe reaction of carbon monoxide with selenium and dialkylamines followed by oxidation with molecular oxygen at 0°C gave bis(N,N-dialkylcarbamoyl) diselenide, pyrolysis of which yielded bis(N,N-dialkylcarbamoyl) selenide and tetraalkylurea.View full abstract -
Masao Tokuda, Vo Van Chung, Akira Suzuki, Mitsuomi Itoh1972 Volume 1 Issue 5 Pages 405-408
Published: May 05, 1972
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESSRadiation-induced addition reaction of ethanol and 1-propanol to diethyl maleate gives predominantly cis-γ-alkyl substituted paraconate, but the addition to diethyl fumarate produces trans- and cis-paraconates in almost the same yield. These results can be rationalized by the steric hindrance between α-hydroxyalkyl radical and maleate or fumarate ester.View full abstract -
Fumitaka Takami, Shigeru Wakahara, Takashi Maeda1972 Volume 1 Issue 5 Pages 409-412
Published: May 05, 1972
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESSThe title reaction was investigated over a range of pH 8 ∼ H− 18.2. The rate-pH profile fits with an equation kobs = k(H+)/(K + (H+)). The decomposition proceeds directly via IV but not via its conjugate base V. The rate dependence on the initial concentration of IV is also discussed.View full abstract -
Toyonobu Asao, Yoriko Kikuchi (née Ninomiya)1972 Volume 1 Issue 5 Pages 413-416
Published: May 05, 1972
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESSTropone and its various derivatives were found to form several complexes having a composition of 1 : 1, 1 : 2, or 2 : 1 with mercury (II), zinc (II), cadmium (II), copper (II), cobalt (II), manganese (II), and nickel (II). In all cases, co-ordination would occur with the carbonyl oxygen.View full abstract -
Mikio Kawasaki, Kyoji Tôei, Tadashi Iwachido1972 Volume 1 Issue 5 Pages 417-420
Published: May 05, 1972
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESSAlkali and alkaline earth metal salts of hexyl (2,4,6,- 2′,4′,6′-Hexanitrodiphenylamine), α-hexyl (N-(2,4,6-trinitrobenzo)-2,4-dinitro-1-naphthylamine), and thiohexyl (1,3,7,9-Tetranitrophenothiazine-5-oxide) were extracted into nitrobenzene. The water in the nitrobenzene solution was determined by means of the Karl–Fischer method. It was found that the water content in the extract was greater than that in nitrobenzene which did not contain these salts. The behavior of water in nitrobenzene phase was discussed on the basis of absorption spectra in near infrared region and of proton magnetic resonance spectra.View full abstract
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