Tetrahedron Letters p. 65 - 68 (1988)
Update date:2022-08-03
Topics:
Cummings, Richard T
Krafft, Grant A.
The synthesis and photoactivation of a new type of fluorescent probe, the photoactivable fluorophore (PAF) are described.The PAFs described in this paper consist of fluorescent aromatic amines coupled to substituted nitrobenzyl quenching chromophores via a carbamate linkage.Photoactivation occurs by an intramolecular photo-redox reaction, converting the o-nitrosobenzaldehyde hemiacetal which fragments with loss of CO2 to liberate the fluorescent amine.Photoactivation quantum yields also are reported.
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