Research Article

Photooxygenations and Self-Sensitizations of Naphthylamines: Efficient Access to Iminoquinones

Figure 3

(a) The absorption spectra of SFDBA and SFDBAO. Absorption spectra of 1a at different reaction times: (b) under the sunlight, (c) under the 365 nm UV lamp, and (d) under 490 nm UV lamp.
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(b)
(c)
(d)