反应详情

To the thus-obtained 2-(2,4-dihydroxyphenyl)-4,6-diphenyl-s-triazine (17.0 g, 0.05 mol) were added 2-bromoethanol (94.8 g, 0.75 mol) and dimethylformamide, and then a 48% NaOH aqueous solution (29.2 g, NaOH: 0.35 mol) was added dropwise to the mixture at 85° C. The resultant mixture was allowed to react for 10 hours at 85° C. and then cooled, followed by neutralization with concentrated hydrochloric acid. The resultant precipitate was collected through filtration, followed by washing with water and drying, yielding 2-hydroxy-4-(2-hydroxyethyloxy)phenyl-4,6-diphenyl-s-triazine (hereinafter referred to as “HETr”) (15.4 g, 80% yield). To the thus-obtained HETr (15 g, 0.039 mol) were added methacrylic acid (10 g, 0.116 mol), xylene, and p-toluenesulfonic acid (0.6 g), and then the mixture was refluxed at 140° C. for 10 hours. The resultant mixture was washed with water, followed by recrystallization from a solvent mixture of xylene/methanol (1/1), yielding a white solid product having a melting point of 195° C. (15.0 g, 85% yield).

1. customto react for 10 hours at 85° C.
2. temperaturecooled
3. filtrationThe resultant precipitate was collected through filtration
4. washby washing with water
5. customdrying