Preparation of phenolic ethylenediaminepolycarboxylic acids
    2.
    发明授权
    Preparation of phenolic ethylenediaminepolycarboxylic acids 失效
    酚醛二胺多羧酸的制备

    公开(公告)号:US4130582A

    公开(公告)日:1978-12-19

    申请号:US788712

    申请日:1977-04-19

    IPC分类号: C07C51/00

    CPC分类号: C07C233/12

    摘要: A process for the preparation of phenolic ethylenediamine polycarboxylic acids in predominantly the ortho isomeric form which comprises reacting a phenol compound, ethylenediamine, glyoxylic acid and a base, said phenol compound functioning both as a reactant and as the sole solvent for the reaction system. The product can then be isolated or directly reacted with an iron salt to form the corresponding iron chelate.

    摘要翻译: 用于制备主要为邻位异构形式的酚类乙二胺多元羧酸的方法,其包括使酚化合物,乙二胺,乙醛酸和碱反应,所述酚化合物既用作反应物又用作反应体系的唯一溶剂。 然后可以将产物与铁盐分离或直接反应形成相应的铁螯合物。