A new trend in rhodamine-based chemosensors:application of spirolactam ring-opening to sensing ions

摘要

This tutorial review focuses on the recent development of rhodamine derivatives,in which the spirolactam(non-fluorescent)to ring-opened amide(fluorescent)process was utilized.Fluorescent sensors for ions and neutral analytes have consistently demonstrated their potential in a variety of fields,such as biological probes,environmental sensors,molecular devices,nerve gas sensor,etc.As a fluorophore and chro-mophore probe,the rhodamine fluorochrome has attracted considerable interest from chemists on account of its excellent photophysical properties.