In this study, a series of symmetrically arylated BODIPY dyes were synthesized using a pre-functionalization method, and their structures were characterized by several spectroscopic methods. The relationship between the aryl substitution pattern and the photophysical and electrochemical properties of the dyes was investigated using experimental and computational methods. It was found that electron-donating
Chemoselective cross-coupling reactions were demonstrated for C–S bonds in the BODIPY dyes 1 and 4, and similar reactions were applied to make the two-dye cassette system 11.