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We report a novel, metal‐free procedure for the direct aminophosphonation of imidazo1,2‐apyridines in green solvents under open air conditions. This method is characterized by its mild and sustainable conditions, ease of operation, scalability, and excellent functional group compatibility. The synthesized compounds exhibit promising photophysical properties, including significant Stokes shifts and quantum yields, making them potential candidates for innovative fluorescent probes.
Csákÿ et al. (Sun,) studied this question.