Triphenylphosphine → HCID 23136285, Verbindung

To a solution of ice-cooled ethyl 3-(3-fluoro-4-hydroxyphenyl)propanoate (0.19 g, 0.88 mmol), (4-phenoxyphenyl)methanol (0.12 g, 0.58 mmol) and triphenylphosphine (0.23 g, 0.88 mmol) in tetrahydrofuran (5 mL) was added dropwise diethyl azodicarboxylate (a 40% solution in toluene, 0.40 mL, 0.88 mmol), and the mixture was stirred at room temperature for 4 hours. To the reaction solution was added water, and the reaction mixture was extracted with ethyl acetate. The extract was washed with water, and then concentrated under reduced pressure. The residue was purified with silica gel column chromatography (hexane/ethyl acetate=8:2) to give the title compound (0.16 g, yield 71%) as an oily matter.

1. extractionthe reaction mixture was extracted with ethyl acetate
2. washThe extract was washed with water
3. concentrationconcentrated under reduced pressure
4. customThe residue was purified with silica gel column chromatography (hexane/ethyl acetate=8:2)

ORD-Eintrag

ord-c85ee14e54504e02b5691f8d4725a689

Quelldatensatz

uspto-grants-2011_08

DOI

10.6084/m9.figshare.5104873.v1

Patentnummer

US08008525B2