The Photoinduced Electrocyclization Reaction of Triphenylamine (TPA) in Sustainable and Confined Micellar Solutions: A Steady-State and Laser Flash Photolysis Approach
- Sanmartín, Rocío Ailén
- Salum, Maria Laura
- Protti, Stefano
- Mella, Mariella
- Bonesi, Sergio Mauricio
DOIAbstract
The irradiation of triphenylamine (TPA) under homogeneous (cyclohexane, acetonitrile and methanol) and micellar [sodium dodecyl sulfate (SDS), cetyltrimethylammonium chloride (CTAC) and polyethylene glycol monododecyl ether (Brij-P35)] conditions has been investigated through a combined steady-state and time-resolved spectroscopic approach. Photolysis of TPA at 254 nm in different media afforded N-phenylcarbazole (N−PhCA) as the main photoproduct, and when the photoreaction of TPA was carried out in micellar solution the relative rate of formation of N−PhCA was found to be faster than in homogeneous media due to the environmental confined and hydrophobic micellar core. On the other hand, the transient N-phenyl-4a,4b-dihydrocarbazole (DHC0) ...
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