Preparation of bis(pentachlorocyclopentadienyl)
    72.
    发明授权
    Preparation of bis(pentachlorocyclopentadienyl) 失效
    BIS(PENTACHLOROCYCLOPENTADIENYL)的制备

    公开(公告)号:US4136125A

    公开(公告)日:1979-01-23

    申请号:US863028

    申请日:1977-12-21

    摘要: Bis(pentachlorocyclopentadienyl) is prepared by reductive coupling of hexachlorocyclopentadiene with cuprous chloride in an alcoholic reaction medium. The product is extracted with the aid of an organic solvent, such as orthochlorotoluene. The organic solvent containing the dissolved product together with unreacted cuprous chloride is then treated with hydrochloric acid, having a strength of at least 0.4 normal, to extract the cuprous chloride, and then with water to dissolve residual acid. The solvent is then further processed, for example, by crystallization, to recover C.sub.10 Cl.sub.10 product.