Fig. 2

Proposed catalytic cycle of the organoselenium-catalysed para-amination of phenols. A plausible mechanism illustrating how 2a is formed via two consecutive [2,3]-sigmatropic rearrangements
Proposed catalytic cycle of the organoselenium-catalysed para-amination of phenols. A plausible mechanism illustrating how 2a is formed via two consecutive [2,3]-sigmatropic rearrangements