巻号一覧
1973 巻, 4 号
選択された号の論文の54件中51～54を表示しています
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小泊 満生, 板橋 国夫1973 年 1973 巻 4 号 p. 867-869
発行日: 1973/04/10
公開日: 2011/05/30
ジャーナル フリーPhthalic thioanhydride (PTA) was allowed to react with aliphatic amines in ether at room temperature to give 1:2 adducts in good yields(Ta1e 1). Upon heating the 1:2 adduct above its fusion point, phthalic acid diamide was produced with evolution of hydrogen sulfide, The 1:2 adduct was decomposed by acid to produce PTA. ln the case of the reaction of PTA with aromatic amines, such an adduct was not formed. The reaction with aniline did not give an adduct but N-phenyl phthalimide.抄録全体を表示PDF形式でダウンロード (695K) -
伴野 亟計, 本田 憲治, 本間 正久, 土田 英俊1973 年 1973 巻 4 号 p. 869-871
発行日: 1973/04/10
公開日: 2011/05/30
ジャーナル フリーIn order to improve the yield of 3-acetylpyrrole-2 carbexylic aeid(APCA) through the Knorr condensation of ethyl acetopyruvate(EAP) with aminoacetaldehyde(AAL), the effects of solvent, reaction temperature and pH were examined. The following conclusions were deduced from these results, (1) The more homogeneous is the reaction system made by the solvent, the higher is the yield of (APCA). (2) The yield of the Knorr condensatien is optimum at 35C and at pH 4.3. (3) The enamine intermediate is formed by the reaction of (EAP) rith aminoacetal(AA)competing with the Knorr condensation. The structure of enamine intermediate is identified by IR spectra and the elementary analysis. (4) (APCA) is obtained by the ring losure of enamine intermediate.抄録全体を表示PDF形式でダウンロード (680K) -
高橋 一公, 沢村 敬一, 秋山 俊夫, 山田 和俊, 飯田 弘忠1973 年 1973 巻 4 号 p. 872-873
発行日: 1973/04/10
公開日: 2011/05/30
ジャーナル フリーA prolonged treatment of acetonitrile and phthalonitrile with a sodium-hexamethylphosphoric triamide(HMPA)-diethyl ether tnixture was found to give 1-cyano-1-(3-iminoisoindolyl)-2-iminoi.propane(1)selectively Under similarond1tions.the reaction of aceto nitrile with be1dehyde gave 1-phenyl-2-cyano-3L(N-hydroxybenzyl)imino-1-butene (2). lt was also found that the..yfeld of (1) is sensitively affeeted by various factors, such as temperature, and concentrationratio of HMPA to co-solvent. lt is concluded that HMPA plays an import'ant role in the system. t The Study of Carbanien.抄録全体を表示PDF形式でダウンロード (446K) -
青柳 重郎, 三輪 正明, 土田 英俊, 篠原 功1973 年 1973 巻 4 号 p. 874-876
発行日: 1973/04/10
公開日: 2011/05/30
ジャーナル フリーThe sulfation reaction of ethylene-vinylalcohol copolymer with N, N-dimethylformamide-SO3 complex was carried out, and the relation between components of polyalkylene sulfate and the conductivity was examined.
The sulfration reaction proceeded homogeneously and quantitatively but thpercentage(X) of sulfuric acid groups in the polymers decreased with increasing reaction time at 80C.
The surface resistivity of the polymer(X=32.0%) was 106 -109 cm at relative humidity (RH) ranging from 15 to 85%. Both the surface resistivity of the po1ymer and its dependence on the change of RH decreased linearly with increasing X.抄録全体を表示PDF形式でダウンロード (648K)