A Facile Synthesis of Blue Luminescent [7]Helicenocarbazoles Based on Gold-Catalyzed Rearrangement-Iodonium Migration and Suzuki–Miyaura Benzannulation Reactions

New azahelicenes having interesting photophysical properties have been prepared in a four-step sequence. These [7]helicenocarbazoles are efficient blue luminophores, demonstrating the utility of gold catalysis in the preparation of advanced materials.Support for this work by the MINECO and FEDER (Projects CTQ2015-65060-C2-1-P, CTQ2015-65060-C2-2-P, and ENE2016- 79608-C2-1-R) is gratefully acknowledged. M.L. thanks MINECO and European Social Fund for a Ramjn y Cajal contract (RyC- 2015-18677). The authors would like to thank V. de la Camara for preliminary studies and Dr. M. Pintado (IQOG-CSIC) for the acquisition of HPLC chromatogramsPeer Reviewe