Preparation process of indoles
    6.
    发明授权
    Preparation process of indoles 失效
    吲哚的制备方法

    公开(公告)号:US5175308A

    公开(公告)日:1992-12-29

    申请号:US609641

    申请日:1990-11-06

    摘要: A process is provided for the preparation of an indole from aniline or a derivative thereof and a polyhydric alcohol. The reaction is carried out in the presence of a catalyst composed of a carrier having a specific surface area of at least 10 m.sup.2 /g and silver supported on the carrier. The catalyst also contains as an additional component a specific amount of at least one element selected from Co, Fe and Ni. Deterioration in catalytic performance of the catalyst during the reaction and its regeneration are therefore minimized.