Synthesis and photostability studies of azlactone derivatives encapsulated in <FONT FACE=Symbol>b</font>-cyclodextrin

Abstract

In this work 12 azlactone derivatives were synthetized using the classical Plöchl-Erlenmeyer methodology. One of them was evaluated in respect of its photostability in solution using solvents with different polarities and with addition of encapsulating agents. The photodegradation experiments were done using a 80W mercury lamp as source of light. The results show faster dye degradation in polar media, but when encapsulating agents is present this photodegradation is lowered.

azlactones; photodegradation; cyclodextrin