ChemInform Abstract: Phenanthrene Synthesis by Eosin Y‐Catalyzed, Visible Light‐Induced [4 + 2] Benzannulation of Biaryldiazonium Salts with Alkynes. Issue 19 (18th April 2013) - Xiao, Tiebo
Abstract The metal‐free, visible light‐induced benzannulation of biaryldiazonium salts with alkynes affords a variety of 9‐substituted or 9, 10‐disubstituted phenanthrenes via a cascade radical addition and cyclization sequence in the presence of eosin Y as a photoredox catalyst.