Cascade C–N bond cleavage of amides/intramolecular amination reactions: an atom economical way to α-cabolin-4-ones†
Abstract
An atom economical approach for the synthesis of α-carbolin-4-ones has been developed. This process was realized via a C–N bond cleavage/intramolecular amination cascade. During this process, one C–N and one C–C bond are cleaved and two C–N and two C–C bonds are formed. Mechanistic studies suggested a migrative N-cyclization process involving a carbene intermediate.