84100-59-4

Usage

InChI:InChI=1/C14H11ClN2/c1-10-16-13-9-11(15)7-8-14(13)17(10)12-5-3-2-4-6-12/h2-9H,1H3

Upstream product

• 41513-04-6 2-chloro-5-bromonitrobenzene 
• 103-84-4 Acetanilid 
• 89-61-2 2,5-dichloronitrobenzene 
• 861342-91-8 N-(5-chloro-2-nitro-phenyl)-N-phenyl-acetamide 
• 42837-74-1 4-chloro-N¹-phenylbenzene-1,2-diamine 
• 108-24-7 acetic anhydride 

Relevant academic research and scientific papers

A direct, regioselective palladium-catalyzed synthesis of N-substituted benzimidazoles and imidazopyridines

Unsymmetric, N-substituted benzimidazoles and imidazopyridines can be prepared directly from 2-halonitroarenes and amides through Pd(TFA) 2/(R)-BINAP-catalyzed cross-coupling and subsequent reductive aminocyclization. This sequence can be conducted by a one-pot procedure. The method is versatile and allows the straightforward, regioselective preparation of these important nitrogen heterocycles. Unsymmetrical, N-substituted benzimidazoles can be prepared directly from 2-halonitroarenes and amides through Pd(TFA)2/(R)-BINAP-catalyzed cross-coupling and subsequent reductive aminocyclization.This sequence can be conducted by a one-pot procedure. The method is versatile and allows the straightforward, regioselective preparation of these important nitrogen heterocycles. Copyright

A REGIOSELECTIVE COPPER CATALYZED SYNTHESIS OF BENZIMIDAZOLES AND AZABENZIMIDAZOLES

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.

A regioselective palladium catalyzed synthesis of benzimidazoles and azabenzimidazoles

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, acaricitdes and arthropodicides.