An isoquinoline as cation assisted ON–OFF–ON fluorescence switch with methionine and fluoride ion
摘要:
Basic Al2O3 Cu(OTf)(2) acts as an efficient heterogeneous catalyst for the one step synthesis of 1-amino-3-aryl isoquinoline (IQ) from tricyanomesitylene. This IQ shows fluorescence ON OFF ON molecular switch to fluoride ion, Bronsted-Lowry bases (amines) in the presence of H+, and also selective to methionine with Hg2+ in an analogous manner. (C) 2012 Elsevier Ltd. All rights reserved.