AbstractThe rhodium(III)‐catalyzed oxidative annulations of aryl ketoximes with diphenylacetylene by the cleavage of three CH bonds, one CO bond and the formation of four CC bonds, one CN bonds simultaneously have been developed. This protocol is scalable and compatible with various functional groups, providing an expeditious access to highly congested polycyclic aromatic/heteroaromatic hydrocarbons.magnified image
A Rh-catalyzed pot and step economic synthesis of aza-polycyclic aromatic hydrocarbons (N-PAHs) from readily available aryl ketones and alkynes has been disclosed. Additionally, a novel synthetic application of the well-known aminating reagent hydroxylamine-O-sulfonic acid (HOSA) has been explored as an in situ redox-neutral directinggroup for the formation of N-PAHs via isoquinoline. Multiple bond