Water → 4-Methoxyresorcinol

To a solution of 4-(formyloxy)-2-methoxyphenyl acetate (16 g, 76 mmol) in THF (50 mL)/H2O (50 mL) was added LiOH (7.7 g, 184.2 mmol). The reaction was stirred at room temperature overnight. The volatiles were removed under reduced pressure. The residue was extracted with EA (50 mL×3). The organic phase was washed with brine (50 mL), dried over Na2SO4, filtrated and concentrated in vacuo to give black oil, which was purified by silica gel column (PE:EA=3:1) to afford 4.8 g of product (40%) as a brown solid.

1. customThe volatiles were removed under reduced pressure
2. extractionThe residue was extracted with EA (50 mL×3)
3. washThe organic phase was washed with brine (50 mL)
4. dry with materialdried over Na2SO4
5. filtrationfiltrated
6. concentrationconcentrated in vacuo
7. customto give black oil, which
8. customwas purified by silica gel column (PE:EA=3:1)

ORD-Eintrag

ord-273f2c5841054f85819cc10e0b4dadeb

Quelldatensatz

uspto-grants-2014_03

DOI

10.6084/m9.figshare.5104873.v1

Patentnummer

US08669381B2