巻号一覧
22 巻, 5 号
選択された号の論文の12件中1～12を表示しています
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岩倉 義男1964 年 22 巻 5 号 p. 329-338
発行日: 1964/05/01
公開日: 2011/07/05
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飛田 満彦1964 年 22 巻 5 号 p. 339-356
発行日: 1964/05/01
公開日: 2010/06/28
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西田 進也, 辻 孝1964 年 22 巻 5 号 p. 357-371
発行日: 1964/05/01
公開日: 2011/07/05
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アクロレインよりω-クロルエナントニトリルおよび1,5-ジハロペンタンの合成木村 午朗, 植松 卓史, 三宅 邦彦1964 年 22 巻 5 号 p. 372-379
発行日: 1964/05/01
公開日: 2011/07/05
ジャーナル フリーThe two processes of synthesis of azelonitrile from acrolein as a starting material were investigated. The routes of synthesis were as follows: (1) Acrolein → 2-formyl-3, 4-dihydro-2H-pyran → 1, 6-hexanediol 1, 6-dihalohexane → ω-chloroenanthonitrile azelonitrile. (2) Acrolein → ethyl vinyl ether → 2-ethoxy-3, 4-dihydro-2H-pyran → glutaraldehyde → 1, 5-pentanediol → 1, 5-dihalopentane → azelonitrile. The studies of those steps developed to industrial stage and reported in literatures being omitted, only the conditions for syntheses of ω-chloroenanthonitrile and 1, 5-dihalopentane were investigated. The yield of product from dimerization reaction was slightly better than those from known literatures. It was comfirmed the ring opening of the dimer by the hydrogenation put on record of P.B. Report was of an error. 1, 6-Hexanediol was synthesized, though small in amount, by another method. Reaction of hydrogen halide on 1, 5-pentanediol and 1, 6-hexanediol gave their dihalo-substituted products with high yield. Also, some knowledges on its reaction mechanism were obtained. In the mononitrilation of dihalopentane and dihalo-hexane, the formation of dinitrile was prevented and the yield of mononitrile was increased, by use of the dihalogen in excess against the sodium cyanide.抄録全体を表示PDF形式でダウンロード (1038K) -
ω-クロルエナントニトリルまたは1,5-ジハロペンタンとアセトニトリルとの縮合反応によるアゼロニトリルの合成木村 午朗, 植松 卓史, 渡辺 守義1964 年 22 巻 5 号 p. 380-384
発行日: 1964/05/01
公開日: 2010/06/28
ジャーナル フリーSynthesis of azelonitrile was made by condensation reaction of ω-chloroenanth onitrile or 1, 5-dihalopentane with acetonitrile in the presence of sodium amide. These reactions in nonpolar organic solvent at 20-25°c caused cyclization and polymerization there being considerable decrease in the yield of azelonitrile. The reaction in the presence of acetonitrile in excess against ω-chloroenanthonitrile and sodium amide in liquid ammonia as a solvent at -50°c was effective to suppress the foregoing side reactions and the maximum yield of azelonitrile from ω-chloroenanthonitrile was 80% The rate of reaction in a mixed solvent of liquid ammonia-ether was small. In the case of 1, 5-dihalopentane, kinds of solvent and halogen used showed much effects on the yield of product. Thus, in case of iodine and bromine at around -65°c it yielded 60-70% of azelonitrile, gave no cyclization product such as cyanocyclohexane but gave a polyamine as the by-product; in case of chlorine, the yield of azelonitrile was low and that of cyanocyclohexane was high. Liquid ammonia was superior as the solvent while single use of toluene or ether was not favorable.抄録全体を表示PDF形式でダウンロード (675K) -
テトラアリルチタネートの合成と重合性ならびに燃焼性について橋本 静信, 古川 功1964 年 22 巻 5 号 p. 385-389
発行日: 1964/05/01
公開日: 2010/06/28
ジャーナル フリーAn effectiveness of tetraallyl titanate as a flame retarding agent was investigated. The monomer of tetraallyl titanate was synthesized from esterification of titanium tetrachloride or by interesterification of ethyl titanate, and it was found that the product obtained by the latter method had higher purity and gave better yield. The polymer could be prepared easily by use of t-butylhydroperoxide, but the homopolymer was very brittle and could not be applied for practical use, while copolymerization with methacrylate gave hard resin. No flame retarding effect was shown by a single use of tetraallyl titanate but its effect was increased by a combined use with other flame retarding agent.抄録全体を表示PDF形式でダウンロード (714K) -
藤本 研一, 有田 静児, 竹下 健次郎1964 年 22 巻 5 号 p. 390-393
発行日: 1964/05/01
公開日: 2010/06/28
ジャーナル フリーOptimum conditions for the formation of unsymmetrical biaryl compounds, especially p-terphenyl, in the Ullmann reaction are investigated. Studies of reactions between the halogenated benzenes and the 4-halogenated biphenyls are carried out for the preparation of p-terphenyl and it has been found that an appropriate selection of a kind of halogen atom consisted in the halogenated benzenes and the halogenated biphenyls are quite effective for increasing the yield of p-terphenyl. If the halogen atom either in the halogenated benzenes or in the halogenated biphenyls is chlorine, there is hardly produced any p-terphenyl. The couple of bromobenzene and 4-iodobiphenyl yields plenty of p-terphenyl. As to the catalyst, metallic copper containing a small amount of cupric oxide makes the reaction most effective.抄録全体を表示PDF形式でダウンロード (509K) -
トルエンとアンモニアの気相接触反応斎藤 茂, 太田 暢人1964 年 22 巻 5 号 p. 394-400
発行日: 1964/05/01
公開日: 2011/03/01
ジャーナル フリーA vapor phase catalytic reaction between toluene and ammonia in the presence of molybdenum oxide and vanadium oxide, respectively, was investigated. The activityfor formation of benzonitrile was better in molybdenum oxide carrying catalystt but the selectivity for benzonitrile was superior in vanadium oxide carrying catalyst. The activity of vanadium oxide-alumina catalyst did not change during the experimental period of about 10 hours, but that of molybdenum oxide-alumina catalyst decreased with the time of reaction: however, it was regenerated by the heating in air. A preliminary treatment of vanadium oxide catalyst in an atmosphere of ammonia at 550°c showed practically no change in the activity of catalyst, but that of molybdenum oxide catalyst showed considerable decrease in its activity. It was considered to be mainly due to the formation of lower oxide by the reduction of molybdenum oxide in this reaction atmosphere. It was found that the acidity of catalyst carrier was injurious, as by the action of alumina gel or silicagel of acidic nature on molybdenum oxide, the formation of benzene was accele rated. The catalyst with sintered alumina carrier treated at 1200°c was effective por to inhbit the formation of benzene as a by-product and to improve the selectivity formation of benzonitrile. It was indicated that the rate determining step was before the formation of benzylamine, that the formation of benzonitrile from benzylamine with molybdenum oxide catalyst was proceeded mainly through dehydrogenation process, and that the benzonitrile formation with vanadium oxide catalyst was proceeded mainly through disproportionation.抄録全体を表示PDF形式でダウンロード (885K) -
K. Venkataraman1964 年 22 巻 5 号 p. 401-402
発行日: 1964/05/01
公開日: 2010/06/28
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井本 立也1964 年 22 巻 5 号 p. 403-406
発行日: 1964/05/01
公開日: 2010/06/28
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丹治 正平1964 年 22 巻 5 号 p. 407-412
発行日: 1964/05/01
公開日: 2010/06/28
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磯貝 元三1964 年 22 巻 5 号 p. 413-417
発行日: 1964/05/01
公開日: 2010/06/28
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