Photocatalytic synthesis of 2-amino-4,6-diarylpyrimidines using nanoTiO2
摘要:
Photocatalytic synthesis of 2-amino-4,6-diarylpyrimidines was carried out by using nano TiO2. The method follows a green route by avoiding the use of toxic organic solvents and tedious experimental conditions. Compared with conventional methods the present strategy offers excellent yield under UV irradiation for a period of 20 min in ethanolic medium. Only a small quantity of nanocatalyst (1 mol%) is sufficient to achieve the completion of the reaction. The nanocatalyst can be reused up to four reaction cycles without much loss in the activity.
Synthesis, Crystal Structure, and Photophysical Properties of 4-(4-(Dimethylamino)phenyl)-6-phenylpyrimidin-2-amine
作者:Marco Mellado、Rafaela Sariego-Kluge、Franco Valdés-Navarro、Rodrigo Sánchez-González、Mauricio Fuentealba、Manuel A. Bravo、Luis F. Aguilar
DOI:10.1016/j.molstruc.2020.129340
日期:2021.2
Abstract The pyrimidine core is present in a wide variety of compounds that show interesting fluorescent properties and have been used as pigments and dyes. In this research, we synthesized 4-(4-(dimethylamino)phenyl)-6-phenylpyrimidin-2-amine (compound 9) from chalcone (8) with 45% yield. We obtained monocrystals of 9 by slow evaporation of dichloromethane as a solvent. Additionally, we measured the
Photocatalytic synthesis of 2-amino-4,6-diarylpyrimidines was carried out by using nano TiO2. The method follows a green route by avoiding the use of toxic organic solvents and tedious experimental conditions. Compared with conventional methods the present strategy offers excellent yield under UV irradiation for a period of 20 min in ethanolic medium. Only a small quantity of nanocatalyst (1 mol%) is sufficient to achieve the completion of the reaction. The nanocatalyst can be reused up to four reaction cycles without much loss in the activity.