Formic acid as a sustainable and complementary reductant: an approach to fused benzimidazoles by molecular iodine-catalyzed reductive redox cyclization of o-nitro-t-anilines
作者:T. B. Nguyen、L. Ermolenko、A. Al-Mourabit
DOI:10.1039/c6gc00902f
日期:——
Molecular iodine was found to be an excellent catalyst for reductive redox cyclization ofo-nitro-t-anilines1into fused tricyclic or 1,2-disubtituted benzimidazoles2.
Highly enantioselective nickel‐catalyzed alkene endo‐hydroarylations were accomplished with full selectivity by organometallic C−Hactivation. The asymmetric assembly of chiral six‐membered scaffolds proved viable in the absence of pyrophoric organoaluminum reagents within an unprecedented nickel/JoSPOphos manifold.