Process for the preparation of trifluoromethyl iodide
    12.
    发明授权
    Process for the preparation of trifluoromethyl iodide 失效
    制备三氟甲基碘的方法

    公开(公告)号:US4794200A

    公开(公告)日:1988-12-27

    申请号:US106347

    申请日:1987-10-09

    CPC分类号: C07C17/204

    摘要: A process for the preparation of trifluoromethyl iodide by bringing into contact with one another to form a reaction product either:zinc, sulfur dioxide, and trifluoromethyl bromide, or(b) sodium dithionite and trifluoromethyl bromide;in a polar aprotic solvent, such as dimethylformamide, preferably followed by a filtration stage to remove the solid products. Thereafter, iodine dissolved in carboxylic or sulfuric acid is added to the reaction product, and trifluoromethyl iodide is evolved.

    摘要翻译: 通过相互接触以形成反应产物,即:锌,二氧化硫和三氟甲基溴,或(b)连二亚硫酸钠和三氟甲基溴; 在极性非质子溶剂如二甲基甲酰胺中,优选随后过滤阶段以除去固体产物。 此后,将碘溶于羧酸或硫酸的碘加入到反应产物中,并放出三氟甲基碘。