New fluorescent probes for sulfane sulfurs and the application in bioimaging

摘要

A sulfane sulfur mediated benzodithiolone formation was developed. Based on this reaction, two fluorescent probes (>SSP1 and >SSP2) for the detection of sulfane sulfur species (persulfide, polysulfide, and elemental sulfur) were prepared and evaluated. The probes showed high selectivity and sensitivity to sulfane sulfurs. Moreover, >SSP2 was successfully applied for bioimaging sulfane sulfurs in living cells.