Regioselective copper catalyzed synthesis of benzimidazoles and azabenzimidazoles
申请人:ALONSO Jorge
公开号:US20100261909A1
公开(公告)日:2010-10-14
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 copper 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.
本发明涉及一种配合物I的区域选择性合成方法,其中R0; R1; R2; R3; R4; R5; A1; A2; A3; A4,Q和J具有声明中指示的含义。本发明提供了一种直接铜催化的区域选择性方法,可从2-卤代硝基芳烃和N-取代酰胺出发,合成广泛的非对称、多功能N-取代苯并咪唑或氮杂苯并咪唑配合物I。