A facile synthesis of fluoroalkylated chromones and their analogues from 2,2-dihydropolyfluoroalkanoates
摘要:
Fluoroalkylated chromones and their analogues have been prepared in good yield by the Michael addition reactions of 2,2-dihydropolyfluoroalkanoates with phenols in the presence of triethylamine, followed by acid-catalyzed intramolecular ring-closure.