Pyridin-2-ylthiazolothiazoles – synthesis and photophysical properties

Thiazolo[5,4-d]thiazoles are valuable materials for a range of technical and biological applications. They used as chemosensors, electroluminescent materials, organic light-emitting diodes (OLEDs), in solar cells, live-cell imaging, etc., those applications π-extended thiazolo[5,4-d]thiazole derivatives particularly attractive. A convenient synthetic route to non-symmetrical thiazolo[5,4-d]thiazoles bearing styrylpyridyl or hetarylvinylpyridyl groups, their absorption emission properties, is reported.