Process for producing 4,4'-dihydroxydiphenyls
    21.
    发明授权
    Process for producing 4,4'-dihydroxydiphenyls 失效
    制备4,4'-二羟基二苯基的方法

    公开(公告)号:US4564713A

    公开(公告)日:1986-01-14

    申请号:US690614

    申请日:1985-01-11

    CPC分类号: C07C37/11

    摘要: A process for producing 4,4'-dihydroxydiphenyls is disclosed, which comprises dimerizing alkylphenols in an aqueous solution of pH 7 to 12 containing a surfactant in the presence of an oxidizing agent, wherein the dimerization is conducted in the presence of a copper compound and a basic boron compound or a mixture of a basic substance and a boron compound. According to this process, the desired 4,4'-dihydroxydiphenyls can be easily obtained in high yield.

    摘要翻译: 公开了一种制备4,4'-二羟基联苯的方法,其包括在氧化剂存在下,在含有表面活性剂的pH7至12的水溶液中使烷基酚二聚化,其中二聚在铜化合物存在下进行, 碱性硼化合物或碱性物质与硼化合物的混合物。 根据该方法,可以容易地以高收率获得所需的4,4'-二羟基二苯基。

    Process for producing indoles
    24.
    发明授权
    Process for producing indoles 失效
    吲哚生产工艺

    公开(公告)号:US4757152A

    公开(公告)日:1988-07-12

    申请号:US796739

    申请日:1985-11-12

    CPC分类号: C07D209/08

    摘要: A process for producing an indole by catalytic reaction of a 2-(o-aminoaryl)ethanol, said reaction being carried out by heating in a liquid phase in the presence of an alkali metal using a catalyst containing a metal selected from the group consisting of a platinum-group metal, nickel and copper.The process is industrially advantageous in that indoles are produced in high yield.

    摘要翻译: 一种通过2-(邻氨基芳基)乙醇的催化反应制备吲哚的方法,所述反应是通过使用含有选自以下的金属的催化剂在碱存在下在液相中加热进行的: 铂族金属,镍和铜。 该工艺在工业上是有利的,因为以高产率生产吲哚。