Transition metal catalyzed borylation of functional π-systems

Abstract

Borylated functional π-systems are useful building blocks to enable efficient synthesis of novel molecular architectures with beautiful structures, intriguing properties and unique functions. Introduction of boronic ester substituents to a variety of extended πsystems can be achieved through either iridium-catalyzed direct C-H borylation or the two-step procedure via electrophilic halogenation followed by palladium-catalyzed borylation. This review article focuses on our recent progress on borylation of large πconjugated systems such as porphyrins, perylene bisimides, hexabenzocoronenes and dipyrrins. © 2014 The Japan Academy.