An adjusted version of the TEMPO-assisted RHAT method was employed for synthesizing benzothiazoles 45-49 with varying extents of π-conjugation (Scheme 15) . These derivatives exhibited diverse luminescence properties in the solid state. Notably, compound 46 displayed unique white-light emission in its aggregated state, making it a promising candidate for applications in singlecomponent light-emitting diodes (LEDs). This advancement demonstrates the versatility of the TEMPO-assisted methodology for not only efficient benzothiazole synthesis but also the generation of functional materials with potential technological applications. Scheme 15. TEMPO-assisted synthesis of benzothiazoles 45-49.