Helicenes, chiral members of the family of polyaromatic hydrocarbons, have been increasingly used in a variety of applications in recent years. Despite their intriguing properties, wider utilization is hindered by difficult functionalization of its skeleton, which would provide access to finely tuned derivatives of desired properties. Herein, the recent advancements in the field of helicene functionalization are discussed with an emphasis on different types of transformations, their versatility, and regioselectivity.

Department of Advanced Materials and Organic Synthesis Institute of Chemical Process Fundamentals of the CAS v v i Rozvojová 2 135 Prague 6 165 02 Czech Republic

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