Synthesis of new 2-(2´-hydroxyaryl)benzotriazoles and evaluation of their photochemical behavior as potential UV-filters.
Two new 2-(2´-hydroxyaryl)benzotriazole derivatives were synthesized and studied by photophysical and photochemical techniques in order to assess their ability to act as UV-filters. The absorption and emission properties of both compounds were determined in solvents of different polarity. In non polar solvent, a photoinduced excited state intramolecular proton transfer was established leading to efficient non radiative dissipation of UV-energy. In addition, the compounds considered were photostable under irradiation with simulated sunlight.
Farkas
Renata
R
Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, Hungarian Academy of Sciences, Budapest, Hungary.
Lhiaubet-Vallet
Virginie
V
Corbera
Jordi
J
Törincsi
Mercedesz
M
Gorchs
Olga
O
Trullas
Carles
C
Jiménez
Oscar
O
Miranda
Miguel A
MA
Novak
Lajos
L
D005374:Filtration; D057927:Hydrophobic and Hydrophilic Interactions; D055668:Photochemical Processes / Q000187:drug effects*; D012997:Solvents; D014230:Triazoles / Q000138:chemical synthesis*; D014466:Ultraviolet Rays
D012997:Solvents; D014230:Triazoles; C012771:benzotriazole