Synthesis of New 2-(2´-Hydroxyaryl)benzotriazoles and Evaluation of Their Photochemical Behavior as Potential UV-Filters

Molecules

Renata Farkas¹  Virginie Lhiaubet-Vallet¹  Jordi Corbera¹  Mercedesz Törincsi¹  Olga Gorchs¹  Carles Trullas¹  Oscar Jiménez¹  Miguel A. Miranda¹ 

[1] ¹Research Group for Alkaloid Chemistry, Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, Hungarian Academy of Sciences. Gellért tér 4, 1111 Budapest, Hungary

关键词: benzotriazoles;    benzenediol;    UV-filters;    UV-stabilizers;   

DOI  :  10.3390/molecules15096205

来源: mdpi

【 摘 要 】

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.

【 授权许可】

CC BY   
This is an open access article distributed under the Creative Commons Attribution License (CC BY) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.