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    • 134. 发明专利
    • PRODUCTION OF INDOLE
    • JPS61151171A
    • 1986-07-09
    • JP27274884
    • 1984-12-26
    • MITSUI TOATSU CHEMICALS
    • YAMAUCHI ATSUROIGUCHI SEIYAONO YUZOKIMURA HIROSHIMORITA SATOSHI
    • C07D209/04C07D209/08
    • PURPOSE:To obtain high-purity indole by a simple process, by subjecting aniline and ethylene glycol to gaseous-phase contact reaction in the presence of a catalyst, separating and removing previously a high-boiling impurity, etc. from the prepared reaction product, and carrying out rectification. CONSTITUTION:Aniline which is previously vaporized by an evaporator is brought into contact with ethylene glycol in the presence of a solid acid catalyst or a metallic catalyst (supported on a carrier) at 0.01-10hr10 liquid space velocity (LHSV) at 200-600 deg.C at 1.1X10 -1.0X10 Pa pressure to give a reaction product, from which a high-boiling impurity and an nonvolatile substance are separated and removed, and rectification is carried out to give high-purity indole. EFFECT:In rectification of indole, a high-boiling impurity and a nonvolatile substance which remain in a rectification column after distillation of aniline and produce aniline gradually by thermal decomposition are previously removed, so occurrence of aniline is prevented, and purification is easily carried out. USE:An industrial raw material for perfume, dye, etc., a raw material for synthesizing amino acid, etc.
    • 140. 发明专利
    • Novel preparation of (s)-(-)-1-alkylamino-3-aryl- oxypropane-2-ol
    • (S) - ( - ) - 1-氨基亚氨基-3-亚甲基氧基-2-醇的新制备
    • JPS5732254A
    • 1982-02-20
    • JP10712880
    • 1980-08-06
    • Paamakemu Asia:Kk
    • TSUDA YOSHINORIYOKOGOE KIYONORI
    • A61K31/135A61P25/02B01J23/44B01J31/02C07C67/00C07C213/00C07C213/08C07C217/30C07D209/04
    • PURPOSE: To obtain the titled compound useful as a blocking agent for β-accetor in improved optical purity, by reacting a novel optically active compound with naphthol, etc., followed by hydrolysis, hydrogenation decomposition and/or decarboxylation.
      CONSTITUTION: A novel optically active compound shown by the formula II (X is halogen, alkyl or arylsulfonyloxy; R
      1 is H, alkyl, aryl, alkyl or aralkyl; R is lower alkyl) is reacted with a compound shown by the formula ArOH (Ar is aryl or indolyl which may be substituted.) to give a reaction product shown by the formula IV, which is hydrolyzed, subjected to hydrogenation decomposition and/or decarboxylated, or reacted with an alkylsulfonic acid, to give the desired compound shown by the formula I. The compound shown by the formula II is obtained easily by reacting a compound shown by the formula V with a halogenating agent.
      COPYRIGHT: (C)1982,JPO&Japio
    • 目的:通过使新颖的光学活性化合物与萘酚等反应,然后进行水解,氢化分解和/或脱羧,得到可用作β-加成剂的阻聚剂的标题化合物,以提高光学纯度。 构成:由式II表示的新型光学活性化合物(X为卤素,烷基或芳基磺酰氧基; R 1为H,烷基,芳基,烷基或芳烷基; R为低级烷基)与式 ArOH(Ar是可被取代的芳基或吲哚基),得到式IV所示的反应产物,其被水解,进行氢化分解和/或脱羧,或与烷基磺酸反应,得到所需化合物 通式I所示的化合物可以通过使式V所示的化合物与卤化剂反应而容易地得到。