We report a flexible de novo synthesis of phenolic dihydroxanthene fluorophores. The synthesis relies on a one-pot formation of an aldehyde intermediate which can be diversified in 60–70% overall yield, providing an efficient access to this family of near-infrared emitting fluorophores.
J. Richard, Org. Biomol. Chem., 2015, 13, 8169 DOI: 10.1039/C5OB01223F
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