Hydrogen Peroxide → 2-(4-{[3-Chloro-5-(trifluoromethyl)phenyl]oxy}phenyl)ethanol

To the solution of 1-chloro-3-[(4-ethenylphenyl)oxy]-5-(trifluoromethyl)benzene (2.63 g, 8.81 mmol) in dry THF (25 mL), was added 9-BBN (30 mL, 15.00 mmol) at 0° C. The mixture was stirred at room temperature overnight, and quenched with water (2 mL), followed by aq. NaOH (11 mL, 33.0 mmol), and 30% H2O2 (10 mL). The reaction mixture was heated at 50° C. for 3 h. Then THF was removed under reduced pressure, and the residue was diluted with EA. The organic layer was washed with water and brine, dried over anhydrous Na2SO4, concentrated and purified by flash chromatography to afford the title compound (2.8 g, 8.84 mmol, 100% yield) as a colorless oil. LCMS: rt=3.70 min, [M+H+]=299

1. customquenched with water (2 mL)
2. temperatureThe reaction mixture was heated at 50° C. for 3 h
3. customThen THF was removed under reduced pressure
4. additionthe residue was diluted with EA
5. washThe organic layer was washed with water and brine
6. dry with materialdried over anhydrous Na2SO4
7. concentrationconcentrated
8. custompurified by flash chromatography

ORD-Eintrag

ord-a3d367369951489e80577d4809f70214

Quelldatensatz

uspto-grants-2014_01

DOI

10.6084/m9.figshare.5104873.v1

Patentnummer

US08637536B2