Fig. 3: DFT studies.
From: Metal-free para-selective C-H amination and azidation of N-arylhydroxylamines

a Reactions of 1a and 2a with the Na2CO3 base. b Reactions of IN1 with 2a and NaOSO2F. c Free energy profile for the reaction starting from imine cation IN1 (bond distances are given in Å).