Synfacts, Table of Contents Synfacts 2018; 14(09): 0920DOI: 10.1055/s-0037-1610618 Synthesis of Materials and Unnatural Products © Georg Thieme Verlag Stuttgart · New York Porphyrin Dimers Undergo Forbidden Dimerization Contributor(s): Timothy M. Swager , Kosuke Yoshinaga Recommend Article Abstract Buy Article Key words Key wordsporphyrins - double cyclization - thermal [2+2] cycloaddition Full Text