Regioselective metal catalyzed synthesis of annelated benzimidazoles and azabenzimidazoles
申请人:ALONSO Jorge
公开号:US20100216988A1
公开(公告)日:2010-08-26
The present invention relates to a process for the regioselective synthesis of compounds of the formula I,
wherein R1; R2; R3; R4; J1; J2; J3; J4 and G have the meanings indicated in the claims. The present invention provides a direct metal, e.g. palladium or 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.
本发明涉及一种用于选择性合成式I化合物的过程,其中R1; R2; R3; R4; J1; J2; J3; J4和G具有声明中所示的含义。本发明提供了一种直接金属,例如钯或铜,催化的、选择性区域的过程,从2-卤代硝基芳烃和N-取代酰胺开始,合成广泛的非对称、多功能的N-取代苯并咪唑或氮杂苯并咪唑式I化合物。