1-Hexanol → {4-(4-Hexanoxy-2,3,5,6-tetrafluorophenyl)-2,3,5,6-tetrafluorophenyl}bis(triflyl)methane

Temperature

-20 °C

Hexanol (1.5 mL, 12 mmol) was added to a pyridine (10 mL) solution dissolved with 60% sodium hydride containing mineral oil (0.56 g, 14 mmol) at 0° C., and the resultant solution was stirred for 1 hour at room temperature. After the solution was cooled to −20° C., {4-(pentafluorophenyl)-2,3,5,6-tetrafluorophenyl}bis(triflyl)methane (1.2 g, 2 mmol) was added. The reaction solution was stirred at −20° C. for 5 hours. After the reaction, the solution was acidified with 4 M hydrochloric acid water, and was extracted with diethylether. After drying with magnesium sulfate, the solution was filtrated, and the solvent was removed under reduced pressure. The crude product was purified by sublimation (0.2 to 0.3 torr, 80° C.), and {4-(4-hexanoxy-2,3,5,6-tetrafluorophenyl)-2,3,5,6-tetrafluorophenyl}bis(triflyl)methane was obtained at 94% yield (1.27 g, 1.88 mmol).

1. customAfter the reaction
2. extractionwas extracted with diethylether
3. dry with materialAfter drying with magnesium sulfate
4. filtrationthe solution was filtrated
5. customthe solvent was removed under reduced pressure
6. customThe crude product was purified by sublimation (0.2 to 0.3 torr, 80° C.)

ORD record

ord-1079cf47f891446eb9a43f5e4399a452

Source dataset

uspto-grants-2007_03

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US07193113B2