Dynamic Diels–Alder Reactions of 9,10‐Dimethylanthracene: Reversible Adduct Formation, Dynamic Exchange Processes and Thermal Fluorescence Modulation

Studies of the Diels–Alder reactions between 9,10‐dimethylanthracene and cyano‐functionalized dienophiles led to the identification and characterization of new dynamic systems under ambient conditions. Among these dienophiles were tricyanoethynylethylene derivatives, which gave access to reversible thermal switching of fluorescent properties through binding to and release of the dimethylanthracene partner. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009)