Use of N-lithiated ethyl anthranilates as 1,4-dipole equivalents in 1,4-dipole-aryne cycloaddition: a novel approach to the synthesis of acridones

Article abstract of DOI:10.1016/0040-4039(90)80169-M

A new strategy for acridones based on 1,4-dipolar cycloaddition of N-lithiated ethyl anthranilates, which function as 1,4-dipole equivalents, with arynes is reported.