PROCESS IMPROVEMENT
    2.
    发明申请
    PROCESS IMPROVEMENT 审中-公开
    流程改进

    公开(公告)号:US20110021777A1

    公开(公告)日:2011-01-27

    申请号:US12787443

    申请日:2010-05-26

    申请人: Franz J. WEIBERTH

    发明人: Franz J. WEIBERTH

    IPC分类号: C07D491/044

    CPC分类号: C07D491/044

    摘要: An improved chemical synthesis for intermediates of compounds having useful biological activity is disclosed, where the use of PBr3 is employed as a reagent for a selective ring opening of cyclopropylcarbinols to give bromopropylidene products which are highly selectively the E isomer.

    摘要翻译: 公开了具有有用生物活性的化合物的中间体的改进的化学合成,其中使用PBr 3作为选择性开环环丙基甲醇的试剂,得到高度选择性的E异构体的溴亚丙基产物。