Journal of Japan Oil Chemists' Society
Online ISSN : 1884-2003
ISSN-L : 0513-398X
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Volume 15, Issue 5
Displaying 1-8 of 8 articles from this issue
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  • Present Status of Edible Oils and Fats in Our Country
    Mitsuo Uemura
    1966 Volume 15 Issue 5 Pages 193-198
    Published: May 20, 1966
    Released on J-STAGE: October 20, 2009
    DOIhttps://doi.org/10.5650/jos1956.15.193
    JOURNAL FREE ACCESS
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  • Hydrolysis and Nitric Acid Oxidation Reaction of Acrolein Dimers
    Akira MISONO, Tetsuo OSA, Seiichiro KODA
    1966 Volume 15 Issue 5 Pages 199-206
    Published: May 20, 1966
    Released on J-STAGE: October 20, 2009
    DOIhttps://doi.org/10.5650/jos1956.15.199
    JOURNAL FREE ACCESS
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    The rates of hydrolysis reaction of 3, 4-dihydro-2 H-pyran-2-carboxaldehyde and 3, 4-dihydro-2 H-pyran-2-methanol catalysed by hydrogen ion were measured and it was found intrinsically the same as that of n-butyl vinyl ether. This result suggests that the vinyl ether linkage in the dihydro-pyran ring has no singularity because of its existence in the ring structure.
    After the hydrolysis reaction, the resulting solutions of the above two pyran-ring compounds were oxidized with some reagents. In the case of potassium permanganate, periodic acid and hydrogen peroxide, the main product was glutaric acid or glutaraldehyde. On the other hand, nitric acid gave oxalic acid and succinic acid. In this case -hydroxyadipic acid and 5, 6-dihydroxyhexanoic acid (or their lactones), respectively, are considered to be intermediates. The mechanism of oxidation with nitric acid is expected to differ from that with general oxidizing reagents.
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  • Studies on Higher Alcohols. V.
    Thin-Layer Chromatographic Separation of Monoenoic, Dienoic and Trienoic Fatty Alcohols
    Akira HASHIMOTO, Aiko HIROTANI, Katsunori MUKAI
    1966 Volume 15 Issue 5 Pages 206-209
    Published: May 20, 1966
    Released on J-STAGE: October 20, 2009
    DOIhttps://doi.org/10.5650/jos1956.15.206
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    Known mixtures of fatty alcohol acetates were separated into the saturated, monoenoic, dienoic and trienoic components by the thin-layer chromatography using mercuric acetate adduct method and silver nitrate-silicic acid method.
    Sample alcohol acetates were as follows;
    1. Steary 1 alcohol acetate.
    2. Oleyl alcohol acetate.
    3. Linoleyl alcohol acetate.
    4. Linolenyl alcohol acetate.
    5. Docosenyl alcohol acetate.
    6. Sperm whale alcohol acetate.
    7. Fin whale alcohol acetates, cow milk alcohol acetates, shark liver alcohol acetates.
    Three alcohols of No. 7 were prepared from fin whale oil, cow milk fat and shark liver oil by the reduction method with lithium aluminum hydride.
    Petroleum ether : ethyl ether (80 : 20 vol/vol) was better developer than other solvents in the case by silver nitrate-silicic acid method.
    n-Propyl alcohol : acetic acid : pyridine (150 : 1 : 1 vol/vol/vol), diisobutyl ketone : acetic acid (40 : 10 vol/vol) were better developers in the case by mercuric acetate adduct method.
    Silica gel G was a suitable adsorbent in this experiment.
    Monoenoic, dienoic and trienoic fatty alcohols thus showed fine separation on the thin-layer chro-matography.
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  • The Thermal Addition of Formaldehyde to α- and β -Diisobutylene
    Choichiro HIRAI, Yasuyuki SASAKI, Taro MATSUMOTO
    1966 Volume 15 Issue 5 Pages 210-214
    Published: May 20, 1966
    Released on J-STAGE: October 20, 2009
    DOIhttps://doi.org/10.5650/jos1956.15.210
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    Acetates of unsaturated primary alcohols were produced when mixtures of unsaturated hydro-carbons and paraformaldehyde were heated in autoclave in the presence of acetic anhydride.
    Saponification of these acetates gave the corresponding alcohols.
    From α-diisobutylene a mixture of acetate of 3, 5, 5-trimethyl-3-hexene-l-ol and 3-methylene-5, 5 -dimethylhexanol-1, from β-diisobutylene a mixture of acetate of 2, 4, 4-trimethyl-3-oxymethyl-pentene-1 and 3-methylene-5, 5-dimethylhexanol-1 were respectively produced.
    Acetic anhydride was more effective solvent than acetic acid in these reactions.
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  • Reaction of Ethylene Oxide with Active Hydrogen. I.
    Reaction of Ethylene Oxide with Ammonia
    Masayuki MIKI, Teruhiko ITO, Masakazu HATTA, Toru OKABE
    1966 Volume 15 Issue 5 Pages 215-220
    Published: May 20, 1966
    Released on J-STAGE: October 20, 2009
    DOIhttps://doi.org/10.5650/jos1956.15.215
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    Authors investigated the reaction of ethylene oxide with aqueous ammonia at high concentration of commercial practice. Kinetically, it is a consecutive and competitive reaction including the follo-wing reactions.
    NH3+C2H4O_??_NH2C2H4OH (1)
    NH2C2H4OH+C2H4O_??_NH(C2H4OH)2 (2)
    NH(C2H4OH)2+C2H4O_??_N(C2H4OH)3 (3)
    where k1 = (41+4.0 [H2O]2)×102×exp (-11, 000/RT)
    k2 = (7.2-0.042 [H2O])×k1
    k3 = (16-0.22[H2O])×k1 in mol-1l min-1.
    The reaction rate was maximum when the concentration of ammonia is about 4Owt%
    The reactions of ethylene oxide with monoethanolamine and diethanolamine are both accelerated by water, but proceed to an appreciable extent in the absence of water and the rates are proportional to the square root of water concentration. In commercial practice, high temperature and high concentration of aq, ammonia are necessary in parallel, and successive addition of ethylene oxide is recommendable.
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  • Chemical Analysis for Some Minor Components in Petroleum, IV,
    Determination of Carbonyl Compounds, Acids and Phenols
    Masao NAMBU
    1966 Volume 15 Issue 5 Pages 221-224
    Published: May 20, 1966
    Released on J-STAGE: October 20, 2009
    DOIhttps://doi.org/10.5650/jos1956.15.221
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    1966 Volume 15 Issue 5 Pages 225-230
    Published: May 20, 1966
    Released on J-STAGE: October 20, 2009
    DOIhttps://doi.org/10.5650/jos1956.15.225
    JOURNAL FREE ACCESS
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  • Erratum to : Chemical Analysis for Some Minor Components in Petroleum, III.
    1966 Volume 15 Issue 5 Pages 241
    Published: 1966
    Released on J-STAGE: October 20, 2009
    DOIhttps://doi.org/10.5650/jos1956.15.5_241
    JOURNAL FREE ACCESS
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