Cobalt‐Catalyzed Aerobic Oxidative Cyclization of 2‐Aminoanilines with Isonitriles: Facile Access to 2‐Aminobenzimidazoles
作者:Jiaqi Liu、Sarah Morgan、Jessica M. Hoover
DOI:10.1002/cctc.201902011
日期:2020.3.6
A ligand‐ and additive‐free aerobiccobalt‐catalyzed synthesis of 2‐aminobenzimidazoles from 2‐aminoanilines was developed. A variety of aminoanilines and isonitriles undergo efficient coupling to furnish substituted 2‐aminobenzimidazoles in moderate to excellent yields. This protocol enables efficient access to the unsubstituted 2‐aminobenzimidazoles.
Synthesis, biological evaluation and molecular modeling of substituted 2-aminobenzimidazoles as novel inhibitors of acetylcholinesterase and butyrylcholinesterase
A series of novel 2-aminobenzimidazolederivatives were synthesized under microwave irradiation. Their biological activities were evaluated on acetylcholinesterase (AChE) and butyrylcholinesterase (BuChE). A number of the 2-aminobenzimidazolederivatives showed good inhibitory activities to AChE and BuChE. Among them, compounds 9, 12 and 13 were found to be >25-fold more selective for BuChE than AChE