Dearomative Dual Functionalization of Aryl Iodanes.

Area of Science:

• Organic Chemistry
• Synthetic Methodology

Background:

• Aryl iodanes are versatile synthetic precursors.
• Dearomatization reactions offer pathways to complex cyclic structures.

Purpose of the Study:

• To develop a novel dearomatization strategy for aryl iodanes.
• To achieve sequential functionalization of dearomatized intermediates.

Main Methods:

• A two-stage process involving [3,3] sigmatropic rearrangement.
• In situ trapping of a dearomatized intermediate with nucleophiles at low temperatures.

Main Results:

• Successful dearomatization of aryl iodanes.
• Formation of a highly electrophilic dearomatized intermediate.
• Synthesis of polysubstituted alicyclic products through sequential addition.

Conclusions:

• The developed "rearrangement/addition" sequence provides an unprecedented route to dearomatized aryl iodanes.
• This method enables the efficient construction of complex alicyclic frameworks with diverse functionalization.