Abstract:
In recent years the chemistry of cyclic iodonium salts
has experienced ever-growing development. The advantages of
using cyclic iodonium salts over acyclic iodonium salts are that
the reactions between cyclic iodonium salts and various
nucleophiles lead, under suitable reaction conditions, to dual
arylations in a one-pot manner and to the formation of new
heterocycles. Variously functionalized thiophenes, carbazoles, fluorenes, phenanthrenes and triazolophenanthridines have
been synthesized by utilizing cyclic diaryliodonium salts. Various new ladder-type π-conjugated systems have also been synthesized by employing cyclic iodonium salts. In this microreview, the recent advancements in the synthesis and application
of cyclic diaryliodonium salts are discussed in a systematic and
concise manner.
