反应详情

温度

110 °C

A mixture of 37.3 g of 2-phenyl-4,6-bis-(2,4-dihydroxy-phenyl)-1,3,5-triazine (0.100 moles ), 6.6 g of powdered KOH (Fluka, >85%, 0.100 moles), 25.9 g of 11-bromo-1-undecanol(Fluka, 97%, 0.103 moles), and 0.6 g (3.6 mmoles) of Potassium iodide (Merck, 99.5% ) in 160 mL of diethyleneglycol-dimethyl ether (Diglyme, Fluka, 99% ) is heated under stirring at 110° C. for 4 hours 30 min. After cooling to 50° C., there are added 6.6 g (0.100 moles) of powdered KOH (Fluka, >85% ) and 17.0 g (0.103 moles) of n-bromohexane (Fluka, 98%). The mixture is heated at 105° C. under stirring for 14 hours. The mixture is filtered hot and the filtrate evaporated (rotovapor). The product is submitted to a column chromatography [Kieselgel 60, 230-400 mesh; 10 cm diameter; h=30 cm; eluant: CH2Cl2 ]. The first eluted product is the di-hexyl-derivative, the second eluted product eluted is the desired title product and the third product is the product dialkylated by two groups 11-hydroxyundecyl. After drying at 60° C./60 mmHg for 24 hours, there are obtained 22.5 g (35.8% yield) of 2-phenyl-4-(2-hydroxy-4-n-hexyloxy-phenyl)-6-[2-hydroxy-4-(11-hydroxy-undecyloxy)-phenyl]-1,3,5-triazine, as a pale yellow solid, F. 96°-99° C.

1. temperatureis heated
2. temperatureAfter cooling to 50° C.
3. temperatureThe mixture is heated at 105° C.
4. stirringunder stirring for 14 hours
5. filtrationThe mixture is filtered hot
6. customthe filtrate evaporated (rotovapor)
7. washthe second eluted product eluted
8. customAfter drying at 60° C./60 mmHg for 24 hours