Regioselective palladium catalyzed synthesis of benzimidazoles and azabenzimidazoles
    2.
    发明申请
    Regioselective palladium catalyzed synthesis of benzimidazoles and azabenzimidazoles 有权
    苯并咪唑和氮杂苯并咪唑的区域选择性钯催化合成

    公开(公告)号:US20090203912A1

    公开(公告)日:2009-08-13

    申请号:US12353271

    申请日:2009-01-14

    IPC分类号: C07D471/04 C07D235/08

    摘要: The present invention relates to a process for the regioselective synthesis of compounds of the formula I, wherein R0; R1; R2; R3; R4; R5; A1; A2; A3; A4, Q and J have the meanings indicated in the claims. The present invention provides a direct palladium catalyzed, regioselective process to a wide variety of unsymmetrical, multifunctional N-substituted benzimidazoles or azabenzimidazoles of formula I starting from 2-halo-nitroarenes and N-substituted amides useful for the production of pharmaceuticals, diagnostic agents, liquid crystals, polymers, herbicides, fungicidals, nematicidals, parasiticides, insecticides, acaricides and arthropodicides.

    摘要翻译: 本发明涉及一种用于区域选择性合成式I化合物的方法,其中R 0; R1; R2; R3; R4; R5; A1; A2; A3; A4,Q和J具有权利要求中所示的含义。 本发明提供了直接钯催化的区域选择性方法,用于从2-卤代 - 硝基芳烃和用于制备药物,诊断剂的N-取代酰胺开始的各种不对称,多官能的取代的苯并咪唑或式I的氮杂苯并咪唑, 液晶,聚合物,除草剂,杀真菌剂,杀线虫剂,杀寄生虫剂,杀虫剂,杀螨剂和节肢动物杀虫剂。