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A REGIOSELECTIVE COPPER CATALYZED SYNTHESIS OF BENZIMIDAZOLES AND AZABENZIMIDAZOLES
A REGIOSELECTIVE COPPER CATALYZED SYNTHESIS OF BENZIMIDAZOLES AND AZABENZIMIDAZOLES
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机译:区域选择性铜催化合成苯并咪唑和氮杂苯并咪唑
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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 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. The process is useful for the production of pharmaceuticals, diagnostic agents, liquid crystals, polymers, herbicides, fungicidals, nematicidals, parasiticides, insecticides, acaricides and arthropodicides.
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