反应详情

温度

30 °C

Into a stirred solution of 0.5 g (2.4 mmol) of 4-(2-Benzoxazolyl)-phenol prepared as described in example 1 of in 10 ml of tetrahydrofurane and a few drops of dibutyltindilaurate catalyst, was added 0.6 g (2.52 mmol) of ICTEOS under nitrogen atmosphere. The mixture was stirred for 18 h at 30° C. After removal of the solvent, the product was precipitated with hexane, filtrated and dried to yield 0.99 g (90%) of (4-(3-(triethoxysilyl)propyl]-amino]carbonyl]oxy])phenyl)-benzoxazole. M.p. 141-142° C.; UV (ethanol) 304 nm (24′630).

1. additionwas added 0.6 g (2.52 mmol) of ICTEOS under nitrogen atmosphere
2. customAfter removal of the solvent
3. customthe product was precipitated with hexane
4. filtrationfiltrated
5. customdried