Synthesis of 1,8-naphthyridine and BF2-based isomers and their application in fluorogenic sensing Cd2+

A series of isomers were synthesized and identified, two isomers of which were developed as the dual-channel fluorescent probe toward Cd2+. BF2 dissociates from the probe upon reaction with CdCl2, demonstrating a new approach for sensing Cd2+.

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