Meso-pyrrole-substituted 22-oxacorroles: building blocks for the synthesis of bodipy-bridged 22-oxacorrole dyads

Novel boron-dipyrromethene (BODIPY)-bridged 22-oxacorrole dyads, using meso-pyrrolyl 22-oxacorrole as a key synthon, have been synthesized. The reactivity of the meso-pyrrolyl group of 22-oxacorrole was exploited to synthesize the first examples of BODIPY-bridged 22-oxacorrole dyads in ≈40% yield. The dyads are stable and exhibited interesting spectral and electrochemical properties