Recent and ongoing efforts by the Tovar research group to exploit
organic halogenation chemistry for the development of complex organic
electronic materials are described. Standard synthetic approaches
involving free-radical and electrophilic reaction pathways are presented
along with strategies that use ionizable protons or triazenes as
masking groups for aromatic halides. Forward synthetic processes
that highlight the extended chemistry that can be applied to these
halogenated substrates to give complex π-conjugated molecules
are also discussed. The examples presented are specific to work
from the group’s laboratories, but the halogenation procedures
are sufficiently general to be suitable for use on many other conjugated
frameworks.
electrophilic aromatic substitutions - free radicals - arenes - halogenation - conjugation
