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Beilstein J. Org. Chem. 2019, 15, 863–873, doi:10.3762/bjoc.15.84
Graphical Abstract
Scheme 1: Photochemical generation of TEMPO radical.
Scheme 2: Synthesis of caged nitroxides 2a and 2b.
Figure 1: Photochemical generation of TEMPO from 2a and 2b. EPR spectra acquired during the photolysis of 2a ...
Figure 2: Time profile for photochemical generation of TEMPO radical from 2 (5 mM) at ≈298 K in benzene: (a) ...
Scheme 3: Photochemical generation of TEMPO radical and photoproducts 6 and 7 under air atmosphere.
Figure 3: Time profile, ln([2a]/[2a]0) versus irradiation time, of two-photon uncaging reaction of TEMPO in t...
Figure 4: ESR spectra acquired during the photolysis of 2a (5 mM) in benzene using 365 nm light.
Scheme 4: Isodesmic reaction from BRa and 5b to 5a and BRb.
Figure 5: Irradiation time-dependent decline in viability of LLC cells with compound 2a.
Figure 6: Detection of intracellular ROS only in irradiated LLC cells with 2a-containing medium.