1 Continuous Flow Synthesis of Carbon-Based Molecular Cage Macrocycles via a Three-Fold Homocoupling Reaction Melanie Kitchin, a,b Kristina Konstas, a Christopher J. Sumby, c Milena Czyz, a Peter Valente, c Matthew R. Hill,* a,c Anastasios Polyzos,* a,b and Christian J. Doonan.* a,c a CSIRO Manufacturing Flagship, Bayview Avenue, Clayton, VIC, 3168, Australia. b School of Chemistry, The University of Melbourne, Parkville, VIC, 3010, Australia. c Centre for Advanced Nanomaterials and the School of Physical Sciences, The University of Adelaide, Adelaide, SA, 5005, Australia. Electronic Supplementary Material (ESI) for ChemComm. This journal is © The Royal Society of Chemistry 2015