title: Synthesis of new 2-(2´-hydroxyaryl)benzotriazoles and evaluation of their photochemical behavior as potential UV-filters.
abstract: 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.
authors.affiliation: Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, Hungarian Academy of Sciences, Budapest, Hungary.
authors.forename: Renata
authors.initials: R
authors.lastname: Farkas
authors.forename: Virginie
authors.initials: V
authors.lastname: Lhiaubet-Vallet
authors.forename: Jordi
authors.initials: J
authors.lastname: Corbera
authors.forename: Mercedesz
authors.initials: M
authors.lastname: Törincsi
authors.forename: Olga
authors.initials: O
authors.lastname: Gorchs
authors.forename: Carles
authors.initials: C
authors.lastname: Trullas
authors.forename: Oscar
authors.initials: O
authors.lastname: Jiménez
authors.forename: Miguel A
authors.initials: MA
authors.lastname: Miranda
authors.forename: Lajos
authors.initials: L
authors.lastname: Novak
mesh_terms: D005374:Filtration; D057927:Hydrophobic and Hydrophilic Interactions; D055668:Photochemical Processes / Q000187:drug effects*; D012997:Solvents; D014230:Triazoles / Q000138:chemical synthesis*; D014466:Ultraviolet Rays
chemical_list: D012997:Solvents; D014230:Triazoles; C012771:benzotriazole