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Volume 2, Issue 5
Displaying 1-27 of 27 articles from this issue
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Mitsuo Takasugi, Kiroku Kobayashi, Masaki Anetai, Shoji Ueno, Nobukats ...1973 Volume 2 Issue 5 Pages 445-446
Published: May 05, 1973
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESSA new fatty acid was isolated from the roots of kidney bean and identified as 9,10,13-trihydroxyoctadecanoic acid. The hatching stimulating activity to the soybean cyst nematode is also discussed.View full abstract -
Minoru Imoto, Keiu Ree, Tatsuro Ouchi1973 Volume 2 Issue 5 Pages 447-450
Published: May 05, 1973
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESSThe polymerization of methyl methacrylate initiated with soluble starch, water, and carbon tetrachloride was carried out without shaking. The rate of initiation was measured, using hydroquinone as an inhibitor, and was found to be proportional to the concentration of starch in the water phase.View full abstract -
Jyuzo Nakayama, Masayuki Yoshida, Osamu Simamura1973 Volume 2 Issue 5 Pages 451-454
Published: May 05, 1973
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESS1-(2-Carboxyphenyl)-3,3-dimethyltriazene, on being heated in benzaldehyde, affords 2-dimethylaminobenzhydrol and cis- and trans-2,4-diphenyl-1,3-benzodioxins; similar products were obtained with some other carbonyl compounds.View full abstract -
Akira Matsumoto, Joung Hee Lee, Masayuki Yoshida, Osamu Simamura1973 Volume 2 Issue 5 Pages 455-456
Published: May 05, 1973
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESSThe title compound (I) was oxidized to give 3-benzoyl-1-p-chlorophenyl-4-p-chlorophenylazo-5-phenylpyrazole (II) and 3-benzoyl-1-p-chlorophenyl-4-p-chlorophenylazoxy-5-phenylpyrazole (III), both of which underwent trans to cis isomerization on irradiation with ultraviolet light.View full abstract -
Hiizu Iwamura, Kazuhiko Morio, Hiroshi Kihara1973 Volume 2 Issue 5 Pages 457-460
Published: May 05, 1973
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESSAn MO explanation is given to the failure of the intramolecular photocycloaddition reaction of syn-tricyclo[4.2.0.02,5]octa-3,7-diene. Due to the presence of the high-lying σ-orbitals of the cyclobutane ring and to the unique topology of the molecule, the electronic excitation could not be related to the ethylenic chromophore and/or a possible degenerate isomerization might be induced by photoexcitation.View full abstract -
Kitao Fujiwara, Hiroki Haraguchi, Keiichiro Fuwa1973 Volume 2 Issue 5 Pages 461-464
Published: May 05, 1973
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESSFor measuring the exact distribution of metal atoms in the flame, HITACHI 207 atomic absorption spectrophotometer was modified to a single light path with a smaller diameter of the light beam. Using this improved spectrophotometer, the more detailed distribution of cobalt atoms in the air-acetylene flame was measured in terms of some cobalt(III) complexes.View full abstract -
Hiroshi Nakanishi, Osamu Yamamoto1973 Volume 2 Issue 5 Pages 465-468
Published: May 05, 1973
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESSAn NMR spectrum of completely dehydrated ethylenimine in liquid phase is found to show well resolved multiplets for the aziridine ring protons and the computer analysis is made to determine the NMR parameters. Temperature dependent NMR spectra show that the nitrogen inversion of ethylenimine does not occur at room temperature.View full abstract -
Tokio Iizuka1973 Volume 2 Issue 5 Pages 469-470
Published: May 05, 1973
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESSThe formation of the triplet state m-dinitrobenzene anion radical dimer adsorbed on magnesium oxide was observed at room temperature by means of visible and electron spin resonance spectroscopies. The amount of formed dimers could be controlled by pre-heat-treatment time of the oxide and remarkably decreased on adsorption after the calcination in air.View full abstract -
Kentaro Takagi, Tadashi Okamoto, Yasumasa Sakakibara, Shinzaburo Oka1973 Volume 2 Issue 5 Pages 471-474
Published: May 05, 1973
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESSIn the presence of Pd(II) salts, substitution reaction of aryl halides with potassium cyanide occurs readily which affords a simple and beneficial method for aryl cyanide synthesis.View full abstract -
Yoshihisa Watanabe, Take-aki Mitsudo, Masakazu Yamashita, Masato Tanak ...1973 Volume 2 Issue 5 Pages 475-476
Published: May 05, 1973
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESSDisodium tetracarbonylferrate reacts with 1,3-dibromopropane in the presence of phosphine to give a 2-ferracyclopentanone complex,
(Remark: Graphics omitted.)View full abstract -
Masaaki Iwata, Sakae Emoto1973 Volume 2 Issue 5 Pages 477-478
Published: May 05, 1973
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESSFormylation of 9-substituted 2-methoxyanthracenes with N-methylformanilide and phosphorus oxychloride gave its 1-formyl derivatives, while with N-methylformanilide and n-butyllithium it afforded the corresponding 3-formyl derivatives.View full abstract -
Teruaki Mukaiyama, Kazuhiko Saigo1973 Volume 2 Issue 5 Pages 479-482
Published: May 05, 1973
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESSVarious ketones, such as deoxybenzoin, propiophenone, phenylacetone, benzylacetone, cyclohexanone and 2-methylcyclohexanone, and aldehyde such as 3-phenylpropionaldehyde were smoothly converted to the corresponding vinyl sulfides in good yields by the treatments with thiols in the presence of TiCl4.View full abstract -
Nobuhiko Ishibashi, Akinori Jyo, Morihisa Yonemitsu1973 Volume 2 Issue 5 Pages 483-484
Published: May 05, 1973
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESSThe electrode membranes responsive to maleic and phthalic acids were prepared by using the organic solvent solutions of the crystal violet salts of the corresponding organic anions. The responses of both the electrodes are linear down to 10−4 – 10−4.5 M, with an ideal Nernstian slope of 58 mV per activity decade at 20 °C.View full abstract -
Takeshi Tominaga, Ren Iwata, Yoshihiro Makide1973 Volume 2 Issue 5 Pages 485-488
Published: May 05, 1973
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESSThe gaschromatographic behavior of perhaloalkanes containing one or two carbon atoms and different kinds of halogen atoms in a molecule was investigated. The logarithm of the specific retention volume was correlated well with the halogen composition, the boiling point, the estimated volume of molecule and the molar refractivity of these compounds.View full abstract -
Toyokichi Kitagawa1973 Volume 2 Issue 5 Pages 489-490
Published: May 05, 1973
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESSElectron paramagnetic resonance (EPR) spectra of p-iodonitrobenzene anion radical was obtained in methylisobutylketone (MIBK) using tetrabutylammonium perchlorate (TBAP) as a supporting electrolyte. The line broadening of EPR spectra of p-iodonitrobenzene anion radical is considered to be caused by the ion pair formation between supporting electrolyte cation and radical anion.View full abstract -
Tsutomu Sakai, Yoshio Hirose1973 Volume 2 Issue 5 Pages 491-494
Published: May 05, 1973
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESSTwo new sesquiterpene keto aldehydes, named pseudotsugonal and ar-pseudotsugonal, together with (+)-methyl todomatuate were isolated from the wood of Douglas fir (Pseudotsuga menziesii (Mirb.)Franco) grown in British Columbia. The absolute configurations of all these compounds have been established to possess the R,R configuration at the two asymmetric centers.View full abstract -
Yoichi Uehara, Naoshi Saito, Teijiro Yonezawa1973 Volume 2 Issue 5 Pages 495-500
Published: May 05, 1973
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESSIonization potentials and electron affinities of trifluoromethyl and methyl halides calculated by EHMO and CNDO/2 were compared with the observed values obtained from photoelectron spectroscopy. The former calculation provides a good agreement for the occupied orbitals, while the latter explains nearly the entire system.View full abstract -
Iwao Ojima, Tetsuo Kogure, Mitsuru Nihonyanagi, Hiromichi Kono, Shinic ...1973 Volume 2 Issue 5 Pages 501-504
Published: May 05, 1973
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESSThe dehydrogenative condensation of organosilicon hydrides with alcoholic substances catalyzed by rhodium (I) complex was found to furnish a convenient route for the preparation of silylated alcohols.View full abstract -
Tetsuo Iguchi, Akira Sakata, Hitoshi Murakami, Naoya Nakagawa1973 Volume 2 Issue 5 Pages 505-508
Published: May 05, 1973
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESSRelative amounts of molecules formed by relaxation type reactions between radicals (atoms) and radicals (atoms) on the grain surfaces are calculated. The result can explain the formation mechanism of observed molecules. A prediction has been made on molecules such as methylamine which are expected to be detectable.View full abstract -
Masaaki Yokoyama, Takeshi Nakano, Toshiaki Tamamura, Hiroshi Mikawa1973 Volume 2 Issue 5 Pages 509-512
Published: May 05, 1973
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESSDelayed emission spectra of poly-N-vinylcarbazole and its styrene copolymers in a rigid glass have been measured at 77°K. New observations of delayed fluorescence and phosphorescence of poly-N-vinylcarbazole have been obtained. Delayed fluorescence due to triplet–triplet annihilation resulting from intramolecular migration of triplet excitons exhibits more sensitive dependence on the length of N-vinylcarbazole unit sequence than the kind of end groups. This fact is supported by the experiments on N-vinylcarbazole-styrene copolymers.View full abstract -
Mitsunori Hashimoto, Teruaki Mukaiyama1973 Volume 2 Issue 5 Pages 513-516
Published: May 05, 1973
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESS5′-Phosphorodianilidates of various N-protected nucleoside were prepared from the N-protected 5′-deoxyribomononucleotides (e.q., d-pABz-OAc) and aniline with coupling reagents, triphenylphosphine and 2,2′-dipyridyl disulfide, in yields ranging from 60 to 65%. The phosphorodianilidates were condensed with suitably protected mononucleotides by the above mentioned oxidation-reduction condensation to afford the dinucleotide phosphorodianilidate, such as (Remark: Graphics omitted.)d-pABzpCAn, (Remark: Graphics omitted.)d-pTpT, (Remark: Graphics omitted.)d-pABzpT in yields ranging from 50 to 75%. The phosphorodianilidates were successfully converted to the corresponding parent 5′-phosphate by treatment with isoamylnitrite.View full abstract -
Hiroshi Ogino, Junnosuke Fujita1973 Volume 2 Issue 5 Pages 517-520
Published: May 05, 1973
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESSDimethylsulfoxide(DMSO) was found to be useful solvent for synthesizing various novel complexes. The reactions between cis- or trans-[CoCl2(en)2]+ and tetramethylenediamine or dodecamethylenediamine in DMSO produce new complexes, [Co(en)2(tmd)]n3n+ (n = 1 and 2), [Co(en)2(tmdH)2]5+, [Co(en)2(don)]n3n+ (n = 1 or 2) and [Co(en)2(donH)(H2O)]4+, where en, tmd, don, tmdH+ and donH+ denote ethylenediamine, tetramethylenediamine, dodecamethylenediamine, mono-protonated tetramethylenediamine and mono-protonated dodecamethylenediamine, respectively.View full abstract -
Nobufumi Maki1973 Volume 2 Issue 5 Pages 521-526
Published: May 05, 1973
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESSThe cis-[CoIII (CN)4, (SO3)2]5− ion in which four cyanides take a non-planar configuration was found to be reduced in two steps from Co(III) to Co(0) via the Co(I) complex, whereas the trans-[CoIII(CN)4(SO3)2]5− ion in which four cyanides take a coplanar structure is reduced to the Co(I) complex and not to Co(0) state at the dropping mercury electrode in aqueous solutions. This cis- vs. trans-distinction with regard to the stability of cobalt(I) complexes may be extended to other kinds of tetracyano complexes, such as cis-Na[Co(CN)4en]·3.5 H2O, trans-K[Co(CN)4(NH3)2]·H2O, and trans-K[Co(CN)4(OH2)2]·(3/4)H2O. The trans-tetracyanodiaqua complex was speculated to be present in a form of polymerized complexes in solution on the basis of the difference in anodic behavior between the resulting Co (I) complex and the aquated Co (I) species formed from the tetracyanodisulfito complexes.View full abstract -
Yoshinori Kitaoka, Mitsue Kobayashi, Moritami Okada1973 Volume 2 Issue 5 Pages 527-530
Published: May 05, 1973
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESSThe radioactivity distribution in reactor-irradiated adenosine triphosphate changed with irradiation time (5∼60min). This was mainly due to differences in the irradiation temperature, which was estimated by melting points of carboxylic acids and amides.View full abstract -
Mitsuaki Takeuchi, Toshitsugu Matsuda, Muraji Shibata, Isao Ohnishi, Y ...1973 Volume 2 Issue 5 Pages 531-532
Published: May 05, 1973
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESSThe crystals of a new type bis(L-aspartato)cobaltate(III) complex have been obtained as the calcium salt. From the absorption and circular dichroism spectra of this complex salt in solution, it has been found that the calcium salt is composed of equimolar amounts of the two cis(N) geometrical isomers.View full abstract -
Eiji Arie, Masahiko Nakamura, Hiroaki Takahashi, Keniti Higasi1973 Volume 2 Issue 5 Pages 533-534
Published: May 05, 1973
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESSThe origin of the principal relaxation times of alcohols is under dispute. This letter reports that the principal relaxation times of 1-and 2-propanols change with concentration in two sliglitly different manners by solvents and this difference is due to whether the solvent has the hydrogen-bonding capacity or not.View full abstract -
Kunio Kitajima, Nobutoshi Daimon1973 Volume 2 Issue 5 Pages 535-538
Published: May 05, 1973
Released on J-STAGE: March 27, 2006
JOURNAL FREE ACCESSGermanium substituted analogues of Na-taeniolite and Li-taeniolite, i.e., Na–Ge-taeniolite NaMg2Li(Ge4O10)F2 and Li–Ge-taeniolite Limg2Li (Ge4O10)F2 were found to be expanded by water. However, the hydration tendencies of these Ge-taeniolites were found to be somewhat weaker than those of the corresponding silicon substituted analogues.View full abstract
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